US1394478A - Fastener and slug-inserting machine - Google Patents

Description

S A DOBYNE FASTENER AND SLUG INSERTING MACHINEL APPLlCATlON FILED JULY 19, 1918- 1,394,478. Patented 00a 18, 1921.

6 SHEETS-SHEEI I.

(STEP/92' A 005mm;

S. A. DOBYNE.

FASTENER AND SLUG INSERTING MACHINE. APPLICATION FILED JULY 9, 1918.

1,394,478. Patented Oct. 18, 1921.

6 SHEETS-SHEET 2- 6mm 675245 A. Dow WE,

S. A. DOBYNE.

FASTENER AND SLUG INSERTING MACHINE.

APPLICATION FILED JULY 19, 1913.

1,394,478,. Patented Oct. 18, 1921.

6 SHEETS-SHEET 3.

v s. A. DOBYNE. FASTENER AND SLUG INSERTING MACHINE.

APPLICATION FILED .IULY19, 1918.

Patented V0012, 18, 1921.

6 SHEETS-4H5 4.

. S. A. DOBYNE.

FASTENER AND SLUG INSERTING MACHINE.

APPLICATION FILED JULY 19, 191B- 1,394,478. Patented Oct. 18, 1921.

6 SHEETS-SHEET 5.

S. A. DOB YNE.

FASTENER AND SLUG INSERTING MACHINE.

. APPLICATION FILED JULY 19, 1918- 1,394,478. Patented Oct. 18, 1921.

6 $HEET8$HEEI a. P I?! 0 i E I 0 v d v i UNITED STATES PATENT OFFICE.

STEPHEN A. DOBYN E, OF ST. LOUIS, MISSOURI, ASSIGN'OR TO CHAMPION SHOE MACHIN- ERY COMPANY, OF ST. LOUIS, MISSOURI, A. CORiPOR-ATION OF MISSOURI.

FASTENER AND SL-UG-IN SERTIN G MACHINE.

Specification of Letters Patent.

Patented Oct. 18, 1921.

Application filed July 19, 1918. Serial No. 245,730.

To all whom it may concern:

Be it known that I, STEPHEN A. DoBYNE, a citizen of the United States, and residing at St. Louis, Missouri, have invented the new and useful Improvement in Fasteners and Slug-Inserting Machines, of which the following is a specification.

This invention relates to machines for inserting fasteners and slugs, and more particularly to machines adapted for operation on boots and shoes.

Metallic machines as used on boots and shoes, are used for two distinct operations, namely, sole attaching and slugging operations. In the sole attaching operation, the fastener is driven through the sole and clenched on the insole, while in the slugging operation, a series of wear resisting slugs are driven along the edge of the sole or heel to form a wear resisting surface. In the sole attaching operation, a headed fastener. that is, a fastener having a laterally projecting head, must be used in order to provide an anchorage in the outsole; the anchorage in the insole is, however, provided by the clench of the fastener point on the anvil. In the slugging operation it is unnecessary to provide the slug with a head, since it performs only the function of a wear resisting member, and not of a fastening member. For economical reasons, therefore, the head is omitted.

In the sole attaching operation, the spacing of the fasteners is considerable, while in the slugging operation, the slugs are driven close together, sometimes as close as one-eighth of an inch. Now Where a metallic machine is adapted for both'of these operations, as is for instance the case in repair shops, where duplication of machines is, for economical reasons, not desired, it is necessary to vary the feed considerably; sometimes this feed varies from three-thirty-seconds of an inch for slugging, to fifteenthirty-seconds of an inch for sole attaching. Now since an awl feed machine necessarily requires a construction in which the awl and the throat are movable into and out of the line of drive, a certain clearance movement must necessarily be given to the awl, on account of the thickness of the throat wall between the driver passage and the awl. With the ordinary constructions providing for a variation in feed, the clearance must, of course, necessarily increase with the feed movement, so that with a maximum feed, the total movement given to the awl is necessarily great, resulting in great vibration and wearing of the awl cam. For these reasons, therefore, the successful operation of a machine for interchangeably inserting fasteners or slugs, requires the design of special mechanism for imparting a work feeding movement to the awl, but in such a manner as to reduce the total movement to a least possible minimum. Metallic machines are of various types, of which the principal ones are loose nailing machines, wire nailing machines, and string nailing machines. A loose nailing machine is not commercially adaptable for both sole attaching and slug ing operations. A wire nailing machine, w ile adapted for slugging, is not adapted for sole attaching, for the reason that in sole attaching, it is absolutely essential to provide a headed fastener in order to obtain an anchorage of the fastener in the outsole.

A string nailing machine is, on the other hand, peculiarly adapted, when properly constructed, and when the string nail is properly designed, for either sole attaching or slugging. For sole attaching, however, the string of connected fasteners should be so constructed that each fastener will have a laterally extending head to provide the necessary anchorage in the outsole. For slugging, however, this head is not only unnecessary, but even undesirable, and should, therefore, be omitted. The result is, therefore, that in a machine for selectively inserting fasteners or slugs, and utilizing strings of connected fasteners and of connected slugs, the total width of a fastener string is greater than that of the slug string. As a matter of fact, the slug string width is about that of the shank of a fastener on the fastener string.

On account of the peculiarities in the material operated upon, a machine for selectively forming from strings of connected fasteners or slugs, detached fasteners or slugs, and for selectively driving such detached fasteners or slugs, special provisions must be made, and special problems in design and construction are encountered. Thus, the mechanism for guiding the strings of connected fasteners and connected slugs must be so designed and so coordinated with the mechanism for selectively feeding these strings, and for selectively cuttlng or detaching fasteners or slugs from a selected string, that the mechanism can be readily controlled or adjusted to feed a selected fastener string or slug string, and to cut from the selected string, a fasteneror a slug. Moreover, the throat or receiving member which receives and positions in the line of drive, a detached slug or fastener, must be so constructed and coordinated with the mechanism for feeding and cutting, that the machine can be readily controlled to position in the threat at will, a fastener or a slug. Moreover, the throat itself must be constructed to retain and properly direct or guide during the driving operation, either a fastener or a slug. This requires development in design and construction, in order that a throat may interchangeably receive and control during the driving operation, such radically different metallic elements, as a headed fastener and a headless slug.

It will thus be seen that the design and construction of a machine utilizing strings of connected fasteners and strings of connected slugs, and which will, at the will of the operator, drive either of these metallic elements, involves the solution of special problems, and the construction and coordination of special mechanism. 7

One of the objects of this invention, therefore, isto provide and produce a machine, utilizing strings of connected fasteners and connected slugs, which is so constructed and arranged as to selectively permit the formation from a selected fastener string or slug string, of a fastener or slug, and the -driving of such a formed fastener or slug into the work.

Another object is to provide a machine of this type with an awl feed mechanism, which is constructed and arranged for control, to adapt the machine for either fastening or slugging operations.

Further objects will appear from the detailed description taken in connection with the accompanying drawmgs, in which,

Figure 1 is a. front elevation of a machine embodying this invention;

Fig. 2 is a side elevation from the right side ofthe machine;

Fig. 3 is an elevation from the left side of the machine;

Fig; 4 is an enlarged section on the line 44, Fig. 1', showing the awl mechanism;

7 Fig. 5 is a section on the line 55, Fig/1; Fig. 6 is a section on the line 6-6, Fig. 5;

Fig. 7 is an enlarged detail of the fastener and slug stock guiding mechanism;

Fig. 8 is a side elevation of Fig. 7;

Fig. 9 is a section on the line 99, Fig. 7

Fig. 10 is a section on the line 10-10, Fig. 8;

Fig. 11 is a section on the line 1111, Fig. 8;

Fig. 12 is a View showing the mechanism for shifting the nail guide;

Fig. 13 is a section on the line 1313, Fig. 12;

Figs. 14 1, 15, 16 and 17 are diagrams illustrating the operation of the awl feed mechanism; and,

Fig. 18 is a cam diagram showing the sequence of operation of the parts.

Referring to the accompanying drawings, and first more particularly to Figs. 1, 2 and 3, the machine there shown I is generally of the construction shown in Patent No. 1,286,559, December 3, 1918. It comprises generally, a column 1 upon which is mounted a machine head 2 provided with bearings for sustaining the various movable parts, among which is a main drive shaft 8, which is provided with a suitable clutch and brake (not shown). Fixed to this shaft are cam wheels 1, 5 and 6,-each of which is provided on both of its side faces with grooved cams. A. suitable horn 7 supports the work against a presser foot 8, and there is also provided, if desired, a welt guide 9, fixed to the machine head. Pivoted at 10 on the machine head, is a throat 11, having a driver passage with which cooperates a driver 12, attached to a driver bar 13, mounted in a suitable guide 14 on the machine head, and operated by a cam in the right face (Fig. 2) of the cam wheel 4. Pivoted also at 10 is a nail guide 15,

grooved to receive a series of strands of connected nails. Pivoted at 17 on the machine head is anarm '18 having pivoted thereto, an arm 19, normally moved in a counter-clockwise direction by a spring plunger 20, and having a feeding andcutting member 21, adapted to feed the string of nails into the throat and cooperate with the throat to cut a nail from the string. The arm 18 and the cutter are. operated from a cam groove in the left side (Fig. 2) of the cam wheel 6. The string nail guide 15 is held by a spring 22 against a stop 23 on the machine head,

while the throat has connected therewith, an 'arm 24, operated by a cam groove in the right face (Fig. 2) of the cam wheel 5. Mounted in a guide 25 on the machine'head is a slide 26, carrying an awl bar 27, provided at its lower end with an awl 28. This awl bar is reciprocated vertically by means of an arm 29, on a rock-shaft 30, which has an arm 81, provided with a cam roll engaging a cam groove in the right face (Fig. 2) of the cam wheel 6. The mechanism so far described,

except as hereinafter noted, is of substantially the construction as shown in my patent referred to.

The awl feed mechanism.

As pointed out above, in an awl feed machine it is necessary that the throat and awl be movable into and out of the line of drive, so as to position the awl hole in the line of drive to receive the fastener or slug. The distance between the center of the awl and the center of the driver passage in the throat cannot, however, for constructional reasons, be less than a given amount; as a matter of fact, in a substantially constructed shoe machine, this distance cannot be less than ninethirty-seconds of an inch. This can readily be seen on reference to Figs. 14 and 15. Now if it is desired to space the fasteners, such as slugs, less than the distance between the awl and the driver passage, then it is necessary to move the awl laterally while it clears the work, a distance equal to the difference between the spacing of the awl and the driver passage and the desired feed of the work. In other words, the awl must be moved laterally from a position shown in Fig. 14, to a position shown in Fig. 15, before this awl can be moved downwardly to pierce the work. This means that the awl must be moved in such a case, in successive steps, one of which is a clearing step, and the other is a work feeding step, the awl being moved downwardly to pierce the work during the dwell between the steps.

Where a single cam is used to move the awl laterally through both successive steps with a dwell therebetween, then the clearing and feeding movements have fixed definite relations, so that one will necessarily increase with the other. Thus, where as in Fig. 16, (top diagram) the machine is set, for instance, for its minimum feed of fivethirtyseconds of an inch, the clearing movement must necessarily be four-thirtyseconds of an inch. I-f now the machine is set for, for instance, the maximum feed, Fig. 16, (lower diagram) of say, fifteenthirty-seconds of an inch, then the clearing movement will necessarily be twelve-thirtyseconds of an inch. In other words the total travel of the awl for a maximum feed will be twenty-seventhirty-seconds of an inch, that is, nearly twice the effective feed movement of the awl. In view of the fact, however, thatthese machines are made to run at high speeds, such an excessive travel of the awl and its supporting slide, causes undue vibration of the machine, very soon wears out the cam, and in fact, tears the machine to pieces.

In accordance with this invention, the awl is moved laterally in successive steps with an intervening dwell. The first step is a work clearing step and the awl is at that,

time clear of the work; the second step is a. work feeding step and the awl is at that time in the work. Separate actuating cams are provided for imparting to the awl these separate successive movements. Adjusting or controlling mechanism is provided for adjusting or controlling the feed movement of the awl, and this also adjusts or controls the clearing movement; the clearing movement, however, decreases as the feeding movement increases, from a maximum clearing movement, corresponding to a minimum feeding movement, to zero clearing movement, corresponding to maximum feed movement of the awl.

Referring now to Figs. 1 to 6 inclusive, 35 designates a lever pivoted at 36, and having its lower. end engaging a stud 37 on the feed slide 26, and provided. at its upper end with a cam roll '33. engaging a cam groove 39 in the cam wheel 4. The pivot 36 of the lever 35, is in the form of a stud, which has a block 40 sliding in a guideway 41 on the lever 35. This stud fixed to a shank 42, sliding in a guide-way 43 in a crank 44, fixed to one end of a rock-shaft,

the other end of which has fixed thereto an arm46, provided with a cam roll 47, moving in a cam groove 48 in the cam wheel 5. The shank 42 is provided with teeth 49 meshing with a toothed shaft 50, mounted in the bushing 51 in the crank 44, and provided with an arm Mounted between a nut 53 and the crank 44, is a plate 54 provided with an arm 55, and with a cam surface 56, engaging a locking pin 57, which slides freely in a bearing in the crank, and bears against a flattened portion 58 on the shank 42. The cam rolls 38 and 4'? are mounted on studs which are eccentrically mounted in the ends of the arms 35 and 46 respectively, the ends of these arms being split and adapted to be clamped on the eccentric studs. This enables the cam rolls to be adjusted with respect to the cam grooves, and locked in adjusted position.

The cam groove 48 is adapted to impart to the feed slide and the awl thereon, the work clearing movement, while the cam groove 39 imparts the work feeding move ment, the awl piercing cam operating the arm 31 and the awl connected therewith, to cause the awl to pierce the work during the dwell between the clearing and feeding movements of the awl. This is clear from the cam diagram, Fig. 18. lVhen the stud 36 is opposite the center of the rock-shaft 45, the feeding movement by the cam groove 39 is a maximum. It will be noted, however, that at this time, the clearing movement will be zero, as the movement of the arm 46 by the cam groove 48, will, at this time, have no effect whatsoever upon the feed slide. As,

however, the stud 36 moves down with its shank 42, and away from the center, of the -rock-shaft 45, the feeding movement of the feed slide by the cam groove 39, will be decreased, but the clearing movement of the feed slide by the cam groove 48, will be increased. In the lowest position of the stud 36, the feed movement will be a minimum, while the clearing movement will be a maximum. It will, of course, be understood that the shank 42 is adjusted after releasing the pin 86, as shown. in Fig. 6, by turning the handle 52, and after the shank 42 has been set in adjusted position, this shank is locked by moving the handle 55 toward the observer.

Fig. 17 shows the actual operation. The cam grooves 39 and 4:8, and the arms 35, 46 and 44, are so proportioned, that with a minimum feed, the clearing movement of the awl will be sufficient, so that the feed movement plus the clearing movement will equal, or be slightly greater than, the distance between the center of the throat and the center of theawl. Thereafter, with an increase of feed, as pointed out heretofore, the clearing movement will decrease uniformly, so that with a maximum feed movement, as shown in the lower diagram Fig. 17, the total movement of the awl will be a feeding movement, in that the clearing movement is at this time reduced to zero, on account of the fact that the stud 36 is at this time opposite the center of the shaft 45.

It will, therefore, be seen that with this construction, the maximum movement of the feed slide can never be greater than the maximum feed movement of the awl, so that this maximum movement is nearly cut in half, as compared to a construction in which a single cam groove or actuator is used, as illustrated in Fig. 17. With this construction, therefore, the vibration of the feed slide is reduced toa minimum.

The presser foot.

The presser foot is fully described in my application Serial Number 174:,096, filed June 11, 1917. As shown and described in said application, the presser foot is mounted on a carrier 60, pivoted at 61 to the machine head,so as to adapt the presser foot for vertical adjustment, so as to Vary the position of its lower face with respect to the lower limit of movement of the bottom of the driver. This presser foot is adjusted by an actuator 64. The extent of the insertion of the fasteners can, therefore, be readily varied by adjusting the presser foot, so as to cause the fasteners to be inserted countersunk, flush, or slightly protruding from the upper face of thefwork. The machine is, therefore, adaptable to different classes of work, without requiring readjustment, of the The feeding and cutting mechanism.

The feeding and cutting mechanism is fully described in my application Serial Number 17 4:,096, filed June 11, 1917, referred to. Referring to Figs. 1 and 3, shaft 17 has fived thereto, an arm 75, which is yieldingly connected through a spring 85, with an arm 79, having a cam roll engaging a cam in the right side (Fig. 3) of the cam wheel 6. It will, therefore, be seen that there is a yielding connection between the cam and the arm 18. The spring 85 is, of course, strong enough so as to cause the cutter to move the nail guide 15, and against the die plate 76, (Fig. 7) on the throat tocut off a nail. If, however, the driver should break and project from the throat, so as to prevent movement of the nail guide to the right, Fig. 1, to feed the string and cut off the nail, then the spring 85 will yield and thus prevent breaking or shifting of the feeding and cutting blade 21 in its arm 19.

The guiding mechanism.

Referring now to Figs. 7 to 11 inclusive, the nail guide 15 is mounted on a plate 88 which, as heretofore referred to, is pivoted at 10. This plate has a laterally projecting arm 89, provided with-a laterally projecting pin 90, to one end to which is attached the spring 22. The arm 89 has a laterally projecting'lug 91, bearing against the stop 23 which, as shown, is eccentrically mounted in the machine head, so as to permit adjustment thereof, to aline the nail guide 15, with a driver passage 77 in the throat.

The nail guide is provided with a series of vpecific embodiment shown, the nail guide is rovided with a series (in thiscase three) of eep grooves 78, adapted each to receive a string of connected fasteners F, and with a shallow groove 80, adapted to receive a string of connectedslugs 'S. The string of connected fasteners F, as shown in Figs. 7 and 10, is constructed so as to provide a series of headed fasteners connected end to end; the string of connected slugs S, however, is constructed to provide a series of headless slugs connected end to end. The shank width of a slug is substantially the same as the shank width of a fastener. Accordingly, in order to enable the feeding member 21 to properly engage the head end of a slug on the string S, it is necessary that the groove 80 be shallow, and that the nail guide be undercut, as shown at 81, to permit proj notion of the slug edge beyond the groove 8O. as shown in Fig. 11.

Pivoted at 92 on the plate 88 isan arm 93,

rooves adapted to receive the stock. In the which is connected by a link 94 with an arm 95, pivoted at 90 on the arm 89, and having a handle 96. Attached to a laterally projecting lug 97 on the arm 93, is a plate 98, which is stepped to provide a series of guards 99, overlying the fastener string groove 78, and providing a guard 100, overlapping the slug string groove 80. These guards provide stop pawls adapted to engage the head ends of the fasteners or slugs on the strings, and adapted to be engaged by the feeding and cutting member 21, so as to permit the feed of only one fastener or slug at a time. It will, of course, be seen that the stepping of the plate 98, to provide the guards 99, permits the fastener string grooves 78 to receive strings of fasteners of different lengths. Overlying the plate 98 is a spring plate 101, which keeps the guards undertension. This plate is apertured, as shown at 102, so as to permit insertion of the strings of nails therein. Attached also to the plate 97 is a spring plate 103, which has a rounded extremity 10 1 bearing against the nail guide for the purpose of holding the strings in the guide grooves 78 and 80.

When the parts are in full line position, as shown in Fig. 7, with the crank 95 over center, the guards will be held in engagement with the guide 15, and since these guards are at this time under tension, the parts'will be held in locked position. When, however, the handle 96 is moved to dotted line position, the guards are swung out of engagement with the guide, thereby permitting ready re moval of the string or strings from the guide.

The nail guide shifting mechanism.

Referring now to Figs. 1, 2, 3, 12 and 13, the shaft 10 of the nail guide is mounted for rotating and sliding movement in a bearing 110, in the machine head 2. Fixed to this shaft 10 is a grooved collar 111, which is held in its normal position with the slug guide groove 80, in alinement with the driver passage, and the feeding and cutting blade 21, by a spring 112, encircling the shaft 10, and bearing at one end against the collar 111, and at its other end against the bearing 110. This collar is engaged by the forked arm 11.3 ofa lever pivoted at 114- on a bracket 115, mounted on the machine head. The other arm 116 of this lever, has pivoted thereon at 117, a handle 118, so that by manipulation of the handle 118, the lever may be swung on its pivot 11 1, to shift the shaft 10 endwise, in order to shift the string nail guide 15, so as to aline any selected fastener or slug groove 78, 80, with, and in cooperative relation with respect to, the feeding and cutting blade 21 and the throat 77. In order to locl the actuating lever 116 and, therefore, the string nail guide, in any position of adjustment, the handle 118 is provided with an extension 119, bearing a spring pressed plunger 120, adapted to engage with and enter a series of depressions 122, in a sector 123 on the bracket 115. To firmly hold the plunger 120 in its depression, a spring 12% is provided, which engages at one end with an extension 125, on the arm 118, and at its other end with an extension 126, on the lever arm 116. Vith this construction the operator can at pleasure, by manipulation of the handle 118, shift the string nail guide to aline any one of the guide grooves in alinement with the feeding and cutting blade and the throat, and the parts will be locked in any position of adjustment.

The throat or receiner.

Referring now to Fig. 7, the throat 11, as shown, is provided with a recess 180, in which projects a fastener or slugguiding or directing member 131, provided with a fin 132 projecting into the driver passage. This member 132 is pivoted at 133 in the recess 130, and is moved into the driver passage by a plunger 134e, engaged by a spring 135, in a tube 136, screwed into the throat. The fin 132 has a projection 137, adapted to engage the throat wall for the purpose as hereinafter described.

The fin 132 is so formed and spaced from the opposite throat wall, so as to enable it to receive the headed fastener which is fed into and cut off in the driver passage. In order, however, that a slug may be properly retained and drivenin and through the same driver passage, it is necessary to provide means which will accommodate itself to a headed fastener with a laterally projecting head, and to a slug having a shank about the size of a fastener shank. It is for this purpose that the projection 137 is provided on the fin. This projection retains the slug in the driver passage, as shown in Fig. 7, and being beveled, it yields when the fastener is being driven by the driver, and engages with the edge of the slug or the shank of the fastener as the slug or fastener is driven into the work, so as to hold either the slug or the fastener firmly against the opposite driver passage wall, in order that the slug or fastener will be directed and guided while it is being driven. It will, therefore, be seen that the throat is adaptable to either a headed fastener or a slug.

Rsum 0 f operations.

In the general operation of this machine, and starting with the awl up, the awl will be moved laterally, executing a clearing movement, and this awl will thereafter descend into the work to form a puncture therein. At this period the horn is depressed to un clamp the work, and the awl will now be given a feeding movement to feed the puncture into the line of drive. During the lateral movement of the awl, the throat will have swung out of the line of drive. (That is the line on which the fastener is driven and which passes vertically through the horn, and the driver and throat when above the horn tip). The puncture having been placed in the line of drive with the feeding movement of the work completed, the awl is retracted and begins to return, followed by the throat, which is now moved into the line of drive. While the throat is out of the line of drive, so that the driver passage will be in alinement with the string nail guide, the feeding mechanism will operate to feed a string of connected nails or slugs into the throat, and out off the lowermost nail from the string to position a cut fastener or slug in the throat. As the throat moves back into the line of drive, the driver descends to drive the fastener or slug positioned in the driver passage, into the puncture formed in the work and positioned at this time in the line of drive.

' (that is into a vertical plane passing through the driver, horn, awl and the feeding and cutting mechanism) and into cooperative relation with respect to the feeding and out ting mechanism, and with respect to the throat; the work feeding mechanism is, however, also shifted, adjusted or controlled, so

as to adapt the operation of the awl to the position to which the nail guide is shifted. Thus, for instance,the nail guide is shifted to permit the forming and driving ofa certain size of fastener, and the work feeding mechanism is adjusted or controlled to bring the work feeding mechanism in accord with the selected fastener. This means, of course, that for fastening operation, the feed of the work must be increased to a maximum, and this can be accomplished with the awl feed mechanism embodying this invention, with a minimum movement of the actuating mechanism, on account of the fact that the clearance movement decreases to a minimum with the increase of the awl feeding movement required for fastening operation.

When it is desired to convert the machine into aslugging machine, the operator will shift the string nail guide to position the slug string groov'ein proper cooperative relation with the feeding and cutting mechanism and the throat, in order to position the slug string in the line of drive; the work feeding mechanism is also, at this time, ad-

justed to a minimum, so as to adjust the feeding movement of the awl in accordance with the position of the string nail guide, in order to adapt the machine for slugging operation. The clearing movement of the awl is, of course, at this time, a maximum, but since the feeding movement is a minimum, the total movement of the awl is not excessive, and is, in fact, a minimum.

It will, therefore, be seen that the invention accomplishes its objects. An awl feed string nailing machine is produced which utilizes strings of connected fasteners and connected slugs, in which the parts are so constructed, arranged and coordinated, as to selectively permit the formation from a selected fastener string or slug string, of a fastener or slug, and permit the driving of such a formed fastener or slug into the work. The nail guide has a special construction adapting it for guiding strings of connected fasteners, and a string of connected slugs, and thisnail guide is so constructed and so coordinated with the feeding mechanism and the throat, as to permit a selected fastener string or a selected slug string to be shifted at willin the line of drive, to permit the feeding of either a selected fastener string,

or a selected slug string'into the throat. The

throat itself is constructed and arranged to receive and guide, during the driving operation, either a fastener or a slug. The awl feed mechanism is constructed to permit ts instant adjustment from a maximum feed required for fastening operation, to a minimum feed required for slugging operation, at the same time maintaining the lowest possible movement of the awl actuating mechanism.

It is obvious that various changes may be made in the details without departing from the spirit of this invention. It is, therefore, to be understood that this invention is not to be limited to the specific construction shown and described.

Having thus described the invention, what is claimed is:

' 1. In a machine for selectively inserting and means for moving said awl and said throat into and out of the line of drive;

2. In a machine for selectively inserting fasteners or slugs, the combination with driving means, of means for guiding strings of connected fasteners and connected slugs,

a throat adapted to selectively receive the strings from said guiding means, feeding and cutting means, constructed and arranged to selectively feed the strings by engagement with the head end of a fastener or slug on a selected string, and constructed and arranged to cut the selected string, adaptedto selectively position a cut fastener or slug in said throat, work puncturing and feeding mechanism including a work feeding awl, means for moving said awl and said throat into and out of the line of drive, and means for adjusting said work puncturing and feeding mechanism, constructed and arranged to selectively adapt the machine for fastening and for slugging-operations.

3. In a machine for selectively inserting fasteners or slugs, the combination with driving means, of means for guiding strings of connected fasteners and connected slugs, a movable receiver adapted to selectively receive the strings from said guiding means, feeding and cutting means, constructed and arranged to selectively feed the strings by engagement with the head end of a fastener or slug on a selected string, and constructed and arranged to cut the selected string,

adapted to selectively position a cut fastener or slug in said receiver, means for moving said receiver to position the fastener or slug therein in the line of drive, and work puncturing and feeding mechanism including an awl cooperating with said other elements to feed the Work and place the puncture formed therein in the line of drive.

4. In a machine for selectively inserting fasteners or slugs, the combination with driving means, of means for guiding strings of connected fasteners and connected slugs, a movable receiver adapted to selectively receive the strings from said guiding means, feeding and cutting means, constructed and arranged to selectively feed the strings by engagement with the head end of a fastener or slug on a selected string, and constructed and arranged to cut the selected string, adapted to selectively position a cut fastener or slug in said receiver, means for moving said receiver to position the fastener or slug therein in the line of drive, work puncturing and feeding mechanism including an awl cooperating with said other elements to feed the Work and place the puncture form ed therein in the line of drive, and means for adjusting said work puncturing and feeding mechanism, constructed and arranged to selectively adapt the machine for fastening and for slugging operations.

5. In a machine for selectively inserting fasteners or slugs, the combination with a horn or work support positioned in the line of drive, of a work feeding awl, adriver, a throat adapted to selectively receive a fastener or a slug, meansfor selectively guiding strings of connected fasteners or slugs into said throat, means constructed and arranged to feed a selected fastener or slug string into said throat by engagement with the head end of a fastener or slug on the selected string, and constructed and arranged to cut the end fastener or slug from the selected string, adapted to position a cut fastener or slug in .said throat, and means for moving said throat and said awl into and out of the line of drive.

' 6. In a machine for selectively inserting fasteners or slugs, the combination with a horn or work support positioned in the line of drive, of a work feeding awl, a driver, a throat adapted to selectively receive a fastener or a slug, means for selectively] connected fasteners or guiding strings of slugs into said throat, means constructed and arranged to feed a selected fastener or slug string into said throat by engagement with the head end of a fastener or slug on the selected string, and constructed and arranged to cut the end from the selected string, adapted to position a cut fastened or slug in said throat, means for moving said throat and said awl into and fastener or slug out of the line of drive, and means for adjusting said awl, constructed and arranged to selectively adapt the machine for fastening and for slugging operations.

7. In a machine for selectively inserting fasteners or slugs, the combination with driving means, of fastener controlling mechanism including means for guiding strings of connected fasteners and. connected slugs, a throat adapted to selectively re ceive the strings from said guiding means, feeding and cutting means, constructed and arranged to selectively feed the strin 's by engagement with the head end of a fastener or slug on a selected string, and constructed and arranged to cut the selected string, adapted to selectively position, a cut fastener or slug in said throat, Work puncturing and feeding mechanism including a work feeding awl, means-for moving said awl and said throat into and out of the line of drive, and means for adjusting, said mechanisms, constructed and arranged to selectively adapt the machine for fastening and for slugging operations.

8. In a machine for selectively inserting fasteners or slugs, the combination with driving means, of fastener controlling mechanism including means for guiding strings of connected fasteners and connected slugs, a movable receiver adapted to selectively receive the strings from said guiding means, feeding and cutting means, constructed and arranged to selectively feed the strings by engagement with the head end of a fastener or slug on a selected string, and constructed and arranged to cut" the selected string, adapted to selectively position a cut fastener or slug in said receiver, means for moving said receiver to position the fastener or slug therein in the line of drive, work puncturing and feeding mechanism including an and cooperating with said other elements to feed the Work and to place the puncture formed therein in the line of drive,

and means for adjusting the said mecha-.

nisms, constructed and arranged to selectively adapt the machine for fastening and for slugging operations. V

9.; In a machine for selectively inserting fasteners or slugs, the combination with driving means, of means for guiding strings of connected fasteners and connected slugs, a throat adapted to selectively receive the strings from said guiding means, feeding and cutting means, constructed and arranged a said throat into and out of the line of drive,

and means for adjusting said guiding means and said workpuncturing and feeding mechamsm, constructed and arranged 'to selectively adapt the machine for fastening and for slugging operations.

10) In a machine for selectively inserting fasteners or slugs, the combination with driving means, of means for guiding strings of connected fasteners and connected slugs, a movable receiver adapted to selectively receive the strings from said guiding means,

feeding and cutting means, constructed and,

arranged to selectively feed the strings by engagement with the head end of a fastener or slug on a selected string, and constructed and arranged to cut the selected string,

adapted to selectively positiona cut fasteneror slug in said receiver, means formoving said receiver to position the fastener or slug therein in the line of drive, work puncturing and feedin mechanism including an awl cooperating with said other elements to feed the work and to place the puncture formed thereinin the line of drive, and means for adjusting said guiding means and said work 'puncturing and feeding mechanism, con

structed and arranged to selectivelyadapt the machinefor fastening and for slugging operations, V

11. In a machine for selectively inserting fasteners or slugs, the combination with driving means, .of fastener controlling mech anism including means for guiding strings meagre of connected fasteners and connected slugs, a throat adapted to selectively receive the strings from said guiding means, feeding and cutting means, constructed and arranged to selectively feed the strings by engagement With the head end of a fastener or slug on a selected string, and constructed and arranged to' cooperate with said throat tocut the selected string, adapted to selectively position a cut fastener or slug in said throat, work puncturing and feeding mechanism including a work feeding awl, means for moving said awl and said throat into and out of the line of drive, and means for adjusting, said'mechanisms, constructed and arranged to selectively adapt the machine for fastening and for slugging operations. 1

12. In a machine for selectively inserting fasteners 01 slugs, the combination 1 with driving means, of fastener controlling mechanism including a guide for strings of connected fasteners and connected slugs, a throat adapted to selectively receive afastener string or a slug string from said guide, feeding and cutting means, constructed and arranged to feed a selected string into said throat by engagement with the head end of a fastener or slug on the selectedjstringand constructed and arranged to cooperate with said throat to cut the selected string, adapt ed to selectively position a cut fastener or slug in said throat, Work puncturingjand feedin mechanism including a work feed ing awl, means for moving said awland said throat into and out of the line ofdrive, and means for adjusting said mechanisms, constructed and arranged to selectively adapt the machine for fastening and for slugging operations. 1 I 3 13. In a machine forselectively inserting fasteners or slugs, the combination" with driving means, of fastener controlling mechanism including a guide for strings of connected fasteners and connected slugs, a threat adapted to selectively receive a fastener string or a slug string from said guide, a feeding and cutting member constructed and arranged to engage the head end of a fastener or slug on a selected string to feed said string into said throat and to thereaf-f tercut said string, adapted to selectively position a cut fastener or slug in said throat, work puncturing and feeding mechanism inf eluding a Work feeding awl, means for moving said and and said throat into and out of the line of drive, and meansfor adjusting saidmechanisms, constructed and" tener string or a slug string from said guide, a feeding and cutting member constructed and arranged to engage the head end of a fastener or slug on a selected string to feed said string into said throat and to thereafter cooperate with said throat to out said string, adapted to selectively position a cut fastener or slug in said throat, work puncturing and feeding mechanism including a Work feeding awl, means for moving said awl and said throat into and out of the line of drive, and means for adjusting said mechanisms, constructed and arranged to selectively adapt the machine for fastening and for slugging operations.

15. In a machine for selectively inserting fasteners or slugs, the combination with driving means, of fastener controlling mechanism including means for guiding fastener stock and slug stock, means for selectively receiving and placing the fastener stock or the slug stock in position to be driven by said driving means, work puncturing and feed ing mechanism cooperating with said other elements, adapted to puncture and feed the work and place the puncture in the line of drive, whereby selectively a fastener or a slug is placed to be driven by said. driving means into said puncture, and means for adjusting said mechanisms, constructed and arranged to selectively adapt the machine for fastening and for slugging operations.

16. In a machine for selectively inserting fasteners or slugs, the combination with driving means, of fastener controlling mechanism including means for guiding fastener stock and slug stock, means for selectively receiving the fastener stock or the slug stock, means for selectively feeding and for selectively cutting the fastener stock or the slug stock, adapted to selectively place in said receiving means a. fastener or slug, work feeding and puncturing means coooperating with said other elements, adapted to place the puncture in the line of drive, whereby selectively a fastener or a slug is placed to be driven by said driving means into the formed puncture, and means for adjusting said mechanisms, constructed and arrangedto selectively adapt the machine for fastening and for slugging operations.

17. In a machine for selectively inserting fasteners or slugs, the combination with driving means, of means for guiding fastener stock and slug stock, means for selectively receiving the fastener stock or the slug stock, means for selectively feeding and for selectively cutting the fastener stock or the slug stock, adapted to selectively place in said receiving means a cut fastener or slug, work feeding and puncturing means co'o'operating with said other elements, adapted to place the puncture in the line of drive. whereby selectively a fastener or a slug is placed to be driven by said driving means into the formed puncture, and means for selectively adjusting said work puncturing and feeding means, constructed and arranged to selectively adapt the machine for fastening and for slugging operations.

18. In a machine for selectively inserting fasteners or slugs, the combination with driving means, of means for guiding fas-.

tener stock and slug stock, means for selectively receiving the fastener stock or the slug stock, means for selecting feeding and for selectively cutting the fastener stock or the slug stock, adapted to selectively place in said receiving means a fastener or slug, work feeding and puncturing means cooperating with said other elements, adapted to place the puncture in the line of drive whereby selectively a fastener or a slug is placed to be driven by said driving means into the formed puncture, means for adjusting said guiding means, and means for adjusting said work feeding and puncturing means in accordance with said guiding means, constructed and arranged to selectively adapt the machine for fastening and for slugging operations.

19. A, machine for selectively inserting fasteners or slugs, having driving means, means for guiding fastener stock or slug stock, means for selectively feeding and cut ting fastener stock or slug stock, means for selectively receiving and placing the fastener stock or slug stock in the line of drive, and work puncturing and feeding mechanism including a work feeding awl movable into and out of the line of drive, characterized by means for selectively adjust-ing said fastener and slug stock controlling means and said work feeding and puncturing mechanism, constructed and arranged to selectively adapt the machine for fastening and for slugging operations.

20. A machine for selectively inserting fasteners or slugs, having driving means, means for guiding fastener stock or slug stock, means for selectively feeding and for selectively cutting fastener stock or slug stock, means for selectively receiving and placing a fastener stock or slug stock in the line of drive, and work puncturing and feeding mechanism including a work feeding and movable into and out of the line of drive, characterized by means for moving said awl to clear the work and to feed the work, and means for selectively adjusting said fastener and slug stock controlling means and the feeding movement of said awl, constructed and arranged to selectively adapt the machine for fastening and for slugging operations.

21. A machine for selectively inserting fasteners or slugs, having driving means means for guiding fastener stock or slug stock, means for selectively feeding and for selectively cutting fastener stock or slug stock, means for selectively receiving and placing the fastener stock or slug stock in the line of drive, and work puncturing and feeding mechanism including a work feeding awl movable into and out. of the line of drive, characterized by means for moving said awl to clear the work and to feed the work, and means for increasing the feeding movement of said awl without increase of its clearing movement, constructed and arranged to adapt the machine for fastening and for slugging operations.

22. A machine for selectively inserting fastenersor slugs, having driving means, for guiding fastener stock or slug stock, means for selectively feeding and for selectively cutting fastener stock or slug stock, means for selectively receiving and placing the fastenerstock or slug stock in the line of drive, and work puncturing and feeding mechanism including a work feeding awl movable into and out of the line of drive, characterized by means for moving said awl to clear the work and to feed the work, and means for increasing the feeding movement of said awl adapted to decrease its clearing movement, constructed and arranged to selectively adapt the machine for fastening and for slugging operations.

23. A machine for selectively inserting fasteners or slugs, having driving means, means for guiding fastener stock or slug stock, means for selectively feeding and for selectively cutting fastener stock or slug stock, means for selectively receiving and placing the fastener stock or slug stock in the line of drive, and work puncturing and feeding mechanism including a work feeding and movable into and out of the line of drive, characterized by means for moving said awl to clear the work and to feed the work, and means for varying the feeding movement of said awl adapted to eliminate its clearing movement with maximum feed ing movement of said awl, constructed and arranged to selectively adapt the machine for fastening and for slugging operations.

24. A machine for selectively inserting fasteners or slugs, having driving means, means for guiding fastener stock or slug stock, means for selectively feeding and for selectively cutting fastener stock or slug stock, means for selectively receiving and placing the fastener stock or slug stock in the line of drive, and work puncturing and feeding mechanism including a work feeding awl movable into and out of the line of drive, characterized by means for selectively adjusting said work feeding and puncturing mechanism, constructed andarranged to move said awl in a single step during the insertion of fasteners and in successive steps during the insertion of slugs.

25; In a machine for selectively inserting fasteners vor slugs, the combination with driving means, of means for. guiding strings of connected fasteners and connected slugs, means for receiving fasteners'and slugs to be driven by said driving means, means for feeding and for cutting a selected string, and means for adjusting said guiding means with respect to. said receiving means, all constructed and arranged to selectively position in said receiving means a fastener or a slug.

26. In a machine for selectively inserting fasteners 0r slugs, the combination with driving means, of means for guiding strings of connected fasteners of different lengths and a string of connected slugs, means for receiving fasteners and slugs to be driven by said driving means, means for feeding and for cutting a selected string, and means for adjusting said guiding means with respect to said receiving means, all constructed and arranged to selectively position in said receiving means a fastener or a slu 27. In a machine for selectively inserting fasteners or slugs, the combination with a driver, of a guide for strings of connected fasteners and connected slugs, a throat adapted to receive a selected string, means for feeding and for cutting a selected string, and means for adjusting said guide with respect to said throat, allconstructed and arranged to selectively position in said threat a fastener or a slug.

28. In a machine for selectively inserting fasteners or slugs, the combination with a driver, of a guide for strings of connected fasteners of different lengths and a string of connected slugs, a throat adapted to receive a selected string, means for feeding and for cutting a selected string, and means for adjusting said guide with respect to said throat, all constructed and arranged to selectively position in said throat a fastener or a slug.

29. In a machine for selectively inserting fasteners or slugs, the combination with driving means, of means for guiding strings of connected fasteners and connected slugs, means for receiving fasteners and slugs, to be driven by said driving means, means for feeding and for cutting a selected string a work feeding awl, means for moving said awl and said receiving means into and out of the line of drive, and means for adjusting said guiding means with respect to said receiving means, all constructed and arranged to selectively position in said receiving means a fastener or slug.

80. In a machine for selectively inserting fasteners or'slugs, the combination with a driver, of a guide for strings of connected fasteners and connected slugs, a throat adapted to receive a selected string, means for feeding and for cutting a selected string, a work feeding awl, means for moving said awl and said throat into and out of the line of drive, and means for adjusting said guide with respect to said throat, all constructed and arranged to selectively position in said throat a fastener or a slug.

31. In a machine for selectively inserting fasteners or slugs, the combination with driving means, f means for guiding strings of connected fasteners and connected slugs, means for receiving fasteners and slugs in the plane of drive, means for feeding and for cutting a selected string when positioned in the plane of drive, and means for selectively positioning a selected string in the plane of drive, constructed and arranged to position in said receiving means a selected cut fastener or slug to be driven by said driving means.

32. In a machine for selectively inserting fasteners or slugs, the combination with driving means, of means for guiding strings of connected fasteners of different lengths and a string of connected slugs, means for receiving fasteners and slugs in the plane of drive, means for feeding and for cutting a selected string when positioned in the plane of drive, and means for selectively positioning a selected string in the plane of drive, constructed and arranged to position in said receiving means a selected cut fastener or slug to be driven by said driving means.

83. In a machine for selectively inserting fasteners or slugs, the combination with a driver, of a guide for strings of connected fasteners and connected slugs, a throat arranged in the line of drive and adapted to receive a selected string from said guide, means for feeding and for cutting a selected string when positioned to be received by said throat, and means for shifting said guide to selectively position a selected string into 00' operative relation with respect to said throat, all constructed and arranged to position in said throat a selected cut fastener or slug to be driven by said driver.

at. In a machine for selectively inserting fasteners or slugs, the combination with a driver, of a guide for strings of connected fasteners of different lengths and a string of connected slugs, a throat arranged in the line of drive and adapted to receive a selected string from said guide, means for feeding and for cutting a selected string when positioned to be received by said throat, and means for shifting said guide to selectively position a selected string into cooperative relation with respect to said throat, all constructed and arranged to position in said throat a selected cut fastener or slug to be driven by said driver.

35. In a machine for selectively inserting fasteners or slugs, the combination with driving means, of means for guiding strings of connected fasteners and connected slugs, means for receiving fasteners and slugs in the plane of drive, means for feeding and for cutting a selected string when positioned in the plane of drive, a work feeding awl, means for moving said awl and said receiving means intoand out of the line of drive, and means for selectively positioning a selected string in the plane of drive, constructed and arranged to position in said receiving means a selected cut fastener or slug to be driven by said driving means.

36. In a machine for selectively inserting fasteners or slugs, the combination with a driver, of a guide for strings of connected fasteners and connected slugs, a throat arranged in the line of drive and adapted to receive a selected string from said guide, means for feeding and for cutting a selected string when positioned to be received by said throat, a work feeding awl, means for moving said awl and said throat into and out of the line of drive, and means for shifting said guide to selectively position a selected string into 00* operative relation with respect to said throat,

all constructed and arranged to position in said throat a selected cut fastener or slug to be driven by said driver.

In testimony whereof I aflix my signature this 6th day of October, 1917.

STEPHEN A. DOBYNE.

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