US1658098A - Machine for use in the manufacture of shoes - Google Patents

Description

Feb. 7, 1928.

v 1,658,098 A. F. PYM

MACHINE FOR USE IN THE MANUFACTURE OF SHOES Filed Aug. 19, 1921 2 Sheets-Sheet 1 Feb. 7, 1928. l 1,658,098

A. F. PYM' MACHINE FOR USE IN THE MANUFACTURE OF SHOES Filed-Aug. 19, 1921 2 Sheets-SheetZ 111111111141 V I r;

will/111A 26 Fig. 6.

Patented Feb. 1928.

STATES I 1,658fi9t PATENT OFFICE.

ARTE-EUR F. ?ZM, OF LYNN, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY CORPORATION, OF PATEESON, NEW JERSEY, A CORPORATION OF EE'W JERSEY,

v FOP.- USE IN MANUFACTURE OF SHOES.

Application filed August 19, 1921.

This invention relates to machines for use in the manufacture of shoes and is illustrated herein as embodied in a fastening inserting machine having provision for cna trolling the position of lasts and shank pieces while the shank pieces are fastened to the lasts.

In the manufacture of turn shoes it is commonpractice to fasten shank pieces, composed of leather, fibre-board, or other appropriate materialreinforced with a metallic stiffener, to the second last by head'- less tacks prior to the relasting of the shoes upon these lasts, a suitable adhesive being applied to the shank pieces to insure that they stick to the soles of the shoes. When the lasts are pulled, the adhesive havin set and the heel seats of the shoes having been lasted, the shank pieces remain in the shoes and the headless tacks are pulled therefrom and come out with the lasts from which they may later be removed.

Prior to my invention the operation of tacking the shank pieces to the lasts had been performed by hand or by machines without effective gaging means, the operativeendeavoring to locate the shank piece correctly upon the last visually and by the sense of touch and holding it with his fin- W gore while the tacks were driven. This procedure is not at all times satisfactory since the shank stiffeners are occasionally, and with unskilled or inexperienced help 't'rez uently, misplaced relatively to the lasts so that they are not brought into correct relation to the soles and uppers of the shoes when they are relasted, with a resulting malformation or weakening thereof.

It is accordingly an object of the present 40 invention to provide an improved machine for attaching] shankpieces to lasts which will comprise in its organization adeonuttev positioning means.- To this end the illustrated machine is provided with gage memhers arranged to be positioned by the last to which shank is to be fastened and themselves position ng the shank piece relatively to the last. In the herein disclosed machine these gage members engage and are an controlled by the configuration of the heel portion of the last while the gage members themselves engage and position the heel portion of the shank piece to be secured to the last. Vfhile the invention is disclosed hereo in as embodied in a machine for tacking Serial No. 493,704.

shank pieces to lasts and is well adapted to this purpose, it should be understood that it is not limitcd'thereto since, in various of its aspects, it is useful for other purposes.

Such machines as have been-used in the past to fasten shank pieces to lasts have been'of the usual tacker type, in which the operative holds the work against the nozzle orthroat of the machine while the fastenings are inserted. As itis necessary to use at least two tacks to prevent relative move ment of a shank piece and last, it has been necessary for the operative to move the last and shank piece relatively to the nozzle of the machine between the insert-ion of the two tacks with the result that even though the shank piece is correctly positioned with respect to the last when the first tack is inserted it may and occasionally does become displaced when the last is moved priorto the insertion of a second tack.

It is an object of the invention to facilitate the insertion of fastenings under such ci-rcui'nstances. Accordingly a feature of the invention comprises novel means arranged to accomplish the sin'iultaneous insertion of a plurality of fastenings, and, s nce many of the articles, for example shoe parts and lasts, in which it is necessary to insert fastenings of this character are of an irregular shape so that a level surface is not presented to the fastening inserting instruinentalities, the invention coi'itemplates, shown in the illustrative machine, a plurality of throat members yieldingly mounted for movement with respect to each other toward and from the work. Thus the work is util zed-to control the throat members so that each of them may contact with the work during the insertion of the fastcnings. With the sameobject in view another feature of the invention comprises an equalizing device arranged automatically to proport on the force and motion applied to each of a plurality of drivers, a still further feature comprising novel arrangement by which the position of a shiftable throat member is utilized to control the extent of operative movement of a driver.

W'ith the foregoing and other objects and features in v ew the invention will now be. described with reference to the accompanying: drawings and pointed out in t e appended claims. it should be noted, however,

that these drawings are intended primarily rill for purposes 01' exemplification and that in many of its aspects the invention is in no way limited to the specific disclosure of the drawings but that, on the other hand, substantial modifications and variations therefrom may be made without departing from the scope of the claims.

In the drawings,

Fig. 1 is a side elevation of a machine em bodying the invention, for tacking shank pieces to lasts;

Fig. 2 is a front elevation, partly in section, of the head and upper portion of the work support of the machine;

Fig. is a front elevation with certain parts broken away, of the fastening inserting mechanism of the machine, with the parts in the relative positions which they occupy at the conclusion of the insertion of tastenings Fig. i is a vertical section showing means by which the throat members of the machine are mounted for yielding movement;

Fig. 5 is a plan view of gage mechanism used to position the shank pieces with respect to the lasts to which they are to be attached;

Fig. 6 is a perspective View, partly in section, showing a shank piece as attached to a last by the machine;

Fig. 7 is a sectional detail ot a device used to prevent the escape of tastenings as they are transferred from one position to an other; and

Fig. 8 shows a cam operative to control the movement of the fastenings into inserting position.

The illustrated machine is provided with a column 10 upon wiich is mounted a head 12 having journaled therein a cam shaft 14. Loosely mounted upon this shaft is a continuously rotated pulley 16 arranged to be clutched thereto during the operation of the machine by a Horton or other suitable single-revolution clutch 18. Pivot-ed at 20 to the column 12 is a work support 22 provided with a spring 2 1 tending to move the work support forward to inoperative position but permitting rearward movement thereof by the operative to the position of Fig. 1. A slotted bracket 25, carried by the column, limits the movement of the work support and, when'the machine is not in operation, retains it in convenient position for the reception of the work. 7

A suitable work engaging member, illustrated as a short last pin 26, is carried at the upper end of an arm 28 pivoted at 80 to the work support 22, a spring-pressed plunger 32 being arranged positively to limit rearward swinging of arm 28 with respect to the worksupport 22 and arranged, when the parts are in the position of Fig. 1, yieldingly to prevent forward movement of that arm with respect to the work su port eXcept under the influence of force applied thereto by the operative. The upper end of the work support 22 is provided with a yoke 34 carrying, as shown in Figs.2 and 5, three yieldingly mounted gage members 36, 38 and 4:0 shaped to conform to the lateral surface of the heel portion of a last. The transverse gage members 38-and 10 are pivotally connected each to a spring-pressed plunger 4L2 movable rectilinearly towards and from a last upon work support 22, and the rear gage member is rigidly connected to a similar plunger. Springs 4 1 and 46, each anchored at one end to the yoke 34; and at the other to a finger extending forn "ardly from one of the transverse gage members, tend, in the'absence of a last upon the work support, to move these gage members to such a position that they will diverge toward the front and thus facilitate the in sertion ot' a last between them, When a last 18 is placed upon themember-26 and the arm 28 is swung rearwardly about pivot 30, the last enters between gage members 38 and 4.0, tensioning springs 4A and 16 and compressing springs 42 so that those gage members assume a position such as that indicated in Fig. 5, one contacting with each side of the last. At the same time, the sprin of the plunger ot' the rear gage memher 36 is compressed until shoulder of.

arm 28 contacts with the upper surface of plunger 32 when the last is in the desired position. Thus it will be seen that the last itself is operative to position the gage members and at the same time these gage members are arranged about the last in such a manner that they may be utilized to control the position of a shank piece asindicated in Figs. 2 and 5. A latch member 51, pivoted to the work'support 22 at 53, is provided with a downwardly extending lug normally urged into engagement with a notch in bracket 25 by a spring 57. At the conclusion ot the rearward movement of arm 28, however, a depending finger 59 car ried by arm 28 engages an upstanding tinger 61 of latch member 51, rocking the latter to release its lug 55 from the notch of bracket 25. Thus it will be seen that the work support 22 is held'latched against rearward movement until the work has been brought into operative relation'to the gage members 36, 38, 40. 7

While the shank piece is held in this position by the operative the machine may be operated to drive a pair of headless tacks or nails through the shank piece into the last. To tacilitate this the clutch ofthe il-' lustrated machine is controlled by the work support 22 the latter being provided at its upper rearmost portion with an adjustable screw 52 arranged to be held securely in position by a lock-nut 54 and impinging, when the work supportis swung rearwardly, upon the downwardly extending arm of a bell crank lever 56. I

When the machine is at rest the end portion of a spring-pressed plunger58, housed within the rearwardly extending arm of bell crank lever 50, projects beneath the lower end of clutch rod (30, but when the work support is swung into operative position the bell crank lever 56 is rocked, in a counterclockwise direction as viewed in Fig. 1, suiiiciently to elevate clutch rod60'to throw in the clutch. The last part of the counterclockwise movement of hell crank lever 56 results in withdrawing plunger 58 from beneath the end ofrod 60 so that the latter, rodmoves downward under the influence of a spring 62,-this resulting in throwing out the clutch 18 aftera single revolution of shaft 14:. hen the worksupport '22 is moved forwardly to remove the work therefrom av spring (il rocks bell crank lever 56 back to its normal position, the spring of plunger 58 yielding to permit the plunger to pass beneath the lower end of rod 60.

The fastening inserting mechanism of the illustrated machine includes a driver bar provided with a lifting block or lug 72 cooperating with a cam 74, mounted on shaft 14 to elevate the driver bar, and a compres sion spring 76 connected by a link 78 with the upper end of the driver bar to force the latter downward when lug 2 drops off cam Pivoted to the lower end of the driver bar 70 is an equalizer bar 80 pivoted at 82 and 84 to a pair of driver carriers 80 each of the latterhaving a driver 88 clamped to its lower end. By this arrangement the blows struck by the drivers are automatically proportioned in accordance with the resistance offered to their descent. (lo-operating with drivers 88 are a pair of throat members 90 mounted for sliding movement in ways 92 carried by the head of the machine. As shown in Fig. 4, each throat member 90 is provided with a rearwardly extendinglug 9 1: from which a pin 96extends upwardlv to receive and guide a spring 98 housed in a cavity formed in the head of the machine and thus tending yieldingly to move the throat member downward. At its upper end each throat member is formed with a lug or stop 100, each stop being arranged in the path of movement of a lug 102 and of a washer 101 also acting as a stop and with which each driver carrier 86 is provided.

The machine is arranged to come to rest with the drivers in elevated position so that when the machine is at rest lugs 102 of the driver carriers engage lugs of the throat members and hold the latter .in a slightly elevated position with a consequent compression of springs 98. When the clutch is tripped. however. as soon as the drivers start down, the throat members are released and, under the influence of springs 98, move into engagement with the work, reaching the work before the fastenings are inserted. Since the two throat members are mounted for movement independently .of each other. and since each is moved downward by its own spring 98, they may, and willwhen the shape of the work is irregular advance different amounts so thatthey engage the work at diiterent levels as illustrated in Fig. 3. ,This prevents the escape or crippling of fastenings which might occur if one throat member held the other out of contact with the work, the tapering of the throat members (see Fig. 3) assisting in this.

Moreover, the downward movements of the drivers are limited by lugs 1'00 and it therefore follows that if one throat moves further than the other its driver will automatically have 'a corresponding further movement, this being permitted by the equalizer bar 80 so that each fastening will be driven equal distances into the work, as illustrated, flush with the surface of the work.

The machine illustrated as provided with a reel 10% which may be of any suitable form and from which wire 106 passes between a pair of feed rolls 108, 110, through a guide 112. to one or the other of a pair of openings 114 formed in a transfer member or slide 116 movably mounted in transverse ways carried by the head of the machine. Slide 110 is reciprocated in timed relation to the movement of the other parts of the machine by a bell crank lever ,118 connected to the outstanding end thereof and pivoted at 120 to the head of the machine. This lever carries at one extremity a roll 122 arranged in a closed cam track 12% formed in a cam member 126 carried by shaft 14.

The upper Qt ges of the openings 114 are arranged to cooperate with the lower edge of the opening in wire guide 112 to shear fastenings from the wire 106, the feed roll 110 being operated in timed relationto the movement of hell crank lever 118 to feed the wire into the openings 11% as they are presented to guide 112. As illustrated, roll 110 is given a step-by-step movement by a pawl 12S carried by a lever 130 formed rigidly with shaft 132 upon which the roll is rotatably mounted and engaging a ratchet carried by the roll. Shaft 132 is provided also with a rock-arm 184: carrying a roll 136 co-operating with a cam upon shaft lat. Roll 108 is mounted upon the extremity of an arm 138 fulcrumed at 14-0 to the head of the machine and urged toward roll 110 by a spring 142.

' There is but little possibility of the esrape of a fastening from the left-hand hole 114 (Fig. 2) as it moves past the opening in the right-hand throat member on its wayto the left-hand throat member, but positively Uli to insure against such an accident a springpressed plunger 14 1 (Fig. 7) is mounted in slide 116, the plunger being provided with a roundedend 1 16 to. engage the fastening and'to permit the wire 106 or a driver to move therepast.

The machine comes to rest with slide 118 nearly, but not quite, at its extremeletfthand position and with a pair of fastenings in openings 11%. Whcn the clutch is tripped I slide 116 continues its movement to the lett bringing openings 114i into alinement with the openings ot the throat members,-the drivers then starting down to insert the t'astenings. As the drivers start to move the throat members come down into contact with the work thus preventing the escape or crippling oi the fastening-s. Since the downward movement 01 the drivers is limited by the contact of washers 101 with lugs 100 of the throat members, each i'astening is driven flush with the surface of the work irrespective of any irregularities in the surface of the work. Upon their. return to elevated position, lugs 102 of the driver carriers lift the throat members to the position shown in Fig. 2, thus permitting the easy withdrawal of the work from the machine. After the elevation of the drivers but before the clutch is released, slide 116 moves to the right, into the position ot Fig. 2 and teed roll 110 is operated to teed wire 106 into the left-hand opening 114. Atter this slide 116 moves to the left to bring the right-hand opening 114: into alinement with the wire which is again fed forward and, upon the "further movement of slid-e 116 to the left, the second fastening is sheared from the wire allowing the machine to come to rest, as stated above, with slide 116 near its extreme left-hand position.

. Having described my invention, what I claim is: u

1. In a machine of the class described, the combination of a work support, and a gage constructed and arranged for linear movement towards the work and for pivotal movement about an axis substantially perpendicular to the direction of linear movement so as to be positioned by an article upon the support and itself arranged to position a second article with respect to the first.

2. In a machine of the class described, the combination of a work support, a gage member arranged for linear movement towards the work and for pivotal movement about an axis substantially perpendicular to the direction of linear movement so as to be positioned by part of the work upon the support and itself arranged to position a second part of the work with respect to the first,

and means for operating upon the work while so positioned.

3. In a machine of the class described,

the combination of a last support, and a gage member arranged for linear movement toward and from a last upon the support and for pivotal movement about an axis ments and themselves arranged to position a second article with respect to the first.

5. In a machine of the class described,

the combination of a last support, a gage member and a spring tending to move the member linearly toward the last, the gage member being arranged also for piv otal. movement about an axis substantially perpendicular to the direction of its'said linear movement so that the gage member may be positioned by a last upon the last support and is itself arranged to position a shoe part upon the sole of the last.

(3. In a machine of the class described, the combinatimi of a last support, a group o'l' spring pressed gage members arranged "For linear movement toward a last on the support and for pivotal movementabout axes substantially perpendicular to the sole of the last so as to be positioned by a last upon the last support and themselves ar ranged to position a shoe part upon the sole of the last, and means for operating upon the shoe part while so positioned.

7. In a machine of the class described, the combination of a last support, and a pair of gage members arranged upon opposite sides of a last upon the support and mounted for linear movement toward the last and for movement so as to be positioned by the last and themselves to position a shoe part appliedto the last. V

8. In a machine ofthe class described, the combination of a last support, a pair of gage members pivotally supported upon opposite sides of the support for rocking movement about axes substantially perpendicular to the heel seat of a last upon the support and arranged to be positioned by a last upon the support and themselves to position 'a portion of a shoe applied to the last.

9. In a machine of the class described, the combination of a irame member, a last support, and a plurality of gage members yieldingly carried by the frame member and arranged for pivotal movement about axes substantially perpendicular to the heel seat of a last upon the last support, the frame memher and the last support being relatively movable to permit the gage members and a last upon the support to be brought into contacting relation so that the gage members Will'be so positioned in conformity with the shape of the last as themselves to position a shoe part applied to the last.

10. In a machine of the class described, the combination of a frame member, a last support, and a plurality of gage members pivoted to the frame member for movement about a-Xes substantially perpendicular to the sole of a last upon the support and arranged to engage the heel portion of said last, the frame member and the last support being relatively movable to permit the gage members and the heel portion of the last upon the support to be brought into contacting relation so that the gage members Will be positioned in conformity with the shape of the heel portion of the last and may themselves be utilized to position ashoe part applied to the last.

11.. In a machine'of the class described, the combination of a frame member, a plurality of gage members yieldingly and pivotally carried thereby, a last support, the'last sup port'an'd the gage members being arranged for relative movement to permit a last carried by the support to be brought into contaeting relation with the gage members, and means tending to swing certain of the gage members so as to cause them to diverge in the direction from which the last approaches the'gage members.

12; A machine of the class described hav ing, in combination, means for operating upon the work, a plurality of gage members mounted for pivotal and rectilinear move-- ment and shaped to conform to the lateral surfaces of theheel portion of a last, and springs tending to move said gage members rectilinearly towards one another so that the position of the gage members will be determined by the form ofthe heel portion of a last brought therebetween.

13. A machine of the classdescribed having, in combination, a plurality of pivotally mounted gage members, and means tending yieldingly to move the gage members towards the work, the gage members being shaped to conform to the heel portion of a last'and being arranged so that as a last is i moved between them-they will be positioned in contact with the heel portion of the last so as to position shank piece with respect to the last. I

145' A machine of the class described having, in combination, a plurality of pivotally and slidably mounted gage members formed an'darranged to engage the lateral surface of the heel portion of a last' and to project beyondthe heel seatsurface of the last, and means tending yieldingl-y to move the gage membersto'wards the-work sothat as a last is moved between the gage members the latter will take up a position determined by the form of the heel portion ofthe last so as to position a shoe part applied to the heel seat portion of the last.

15, A machine of the class described having, in combination, means for operating uponthe Work, a piurality of slidably mounted gage members arranged to position a shoe part relatively to a last, and springs tending to move said gage members towards each other so that the position of the gage members will be determined by the form of a last brought therebetween.

16; In a machine of the class described, the combination of a movable last support, a pair of gage members slidingly and yieldingly mounted to be positioned by a'last upon the support and arranged themselves to position a shoe part applied to the last, and fastening inserting mechanism operable to drive a fastening into the shoe part While so positioned.

17. In a machine of the class described, the combination 7 of fastening inserting mechanism, a movable last-support, a gage member yieldingly mounted to be' positioned by a last upon the support andarranged itself to position a shoe part applied to the last, and means controlled by the movement of the Work support into operative relation to the fastening inserting means to cause the operation of the la'tter to drive a fastening through the shoe part into the last.

18. In a machine of the class described,

the combination of a gage member arranged to be positioned by a last and itself to position a shoe part applied to thelast, a throat member arranged to be positioned by the shoe part applied to the last, and a driver reciprocable through the opening of the throat member to drive a fastening through the shoe part intothe last, the extent of operative movement of the driver being'controlled by the position of the throat member. i

19. A machine of the class described having, in combination, a pair of slidingly mounted, normally diverging gage members arranged to be positioned by a last and themselves arranged to position ashoe part with respect to the last, and means for inserting a fastening in the shoe part while thus positioned.

20. In a machine of the class described, the combination of a gage member arranged to'be positioned by a last'and itself to position a shoe part applied to the-sole of the last, a plurality of throat members arranged to be positioned by theshoe part applied to the'sole of the last, and a plurality of drivers reciprocable through the openings of the respective throat member to drive fastenings through the shoe part into the last, the extent of operative movement of the drivers being controlled by the position of the respective throat members.

21. A fastening inserting machine having,in combination, a plurality of throat members mounted for movement relatively to each other under pressure applied through the work, a driver movable through each throat, and means for limiting the op erative movement of each driver in accordance with the position of its throat member at the instant of the insertion of each fastening.

22. A fastening inserting machine hav ing, in combination, a throat member, a spring tending to move the throat member toward a work piece presented thereto, a driver bar, driver carried thereby and movable through the throat member, a spring tending to force the driver carrier and the driver toward the work, a lifting cam arranged to liftthe drivercarrier and the driver against the compression of the spring and then to release the driver carrier to permit the spring togive a fastening inserting stroke to the driver carrier and driver, and means carried by the throat member for limiting the extent of the fastening inserting stroke of the driver in accordance with the position of the throat member at the instant of insertion of each fastenin 23. A fastening inserting machine having, in combination, a driver, a spring 0 erable to force the driver toward the wor r, a throat member arranged to guide the driver and mounted for movement into 0011-, tact with the work, and a stop carried by the throat member and arranged to terminate the operative movement of the driver under the influence oi: said spring at a variable point, the position. of which is determined by the work.

24. A fastening inserting machine hav ing, in combination, a throat member, a driver reciprocable therethrough, a work support arranged for movement into and out of operative position relatively to the throat member to present the Work piece thereto, means tending to move the throat member toward the work piece mounted on the support, and a stop carried by the throat member arranged to terminate operative movement of the driver at a point variably determined by the position of the Work piece.

25. A vfastening inserting machine having, in combination, a throat member, a driver carrier, a driver carried thereby and reciprocable through the throatmember, a clutch arranged to transmit power to the reciprocable driver, means tending yieldingly to urge the throat member in the direction of a work piece presented thereto,

a stop carried by the driver carrier, another stop carried by the throat member, said stops being arranged to engage each other thereby to limit the movement ofthe driver in accordance with the position of the throat member at the time of the insertion of each fastening, and means for tripping the clutch to cause a fastening inserting stroke of the driver. I

26. A fastening inserting machine having, in combination, a plurality of throat members arranged for relative movement to conform to the shape of the work presented thereto, a driver co-operating with each throat member, and means for limiting th operative movementsof the diii'erent drivers in accordance with the position of their respective throat members at the instant of the insertion of fasteningsf I V 2?. A 'fasteninginserting machine having, in combination, a plurality of throat;mem bers arranged for relative movement to conform with the shape of the work presented thereto, a driver co-operating with each throat member, and co-operating stops mountedto move with the drivers and throat members for limiting the operative movements of the difierent drivers in accordance with the position of their respective throat members at the instant of the insertion of fasten- 1n 's.

38. A machine for inserting iastenings having, in combination, a plurality of driv ers, a reciprocable driver operating member,

and an equalizer pivotally connected to the drivers and to the operating member to permit continued movement of one drlver after another comes to rest.

29. A ,machine tor inserting fastenings having, in combination, aplurality of driv ers, a rcciprocable driver operating member, and automatically operating equallzlng means connecting the drivers with sa1d member arranged to cause the different tastenings inserted to be driven equal distances into the'work. .30. A fastening inserting machine having, in combination, a pair ofdrivers, driver reciprocating means, and an equalizer bar connecting the drivers with the reciprocating means arranged automatically to control the length of the driver strokes in accordv ance with the different resistances oliered' to the descent of the two drivers.

31. A machine for inserting fastening having, in combination, a plurality of driver carriers, a reciprocable driver operating member, and an equalizer bar connecting the driver carriers with said member ar ranged automatically to control the length of the driver strokes in accordance with the difierent resistances oflered to the'descent of the two drivers.

32A fastening inserting machine having, in combination, a plurality of throat members each tapered towards its Work engaging surface, means tending yieldingly to urge the throat members in the direction of the Work, a driver carrier and a driver for each throat member, a stop arranged to limit the movement of each driver in accordance with the position of its throat member at the time of the insertion of fastenings, driver reciprocating means, and an equalizing device operatively connecting the driver car-' riers with the driver reciprocating means.

33. A fastening inserting machine having, in combination, a plurality of throat members each formed with a fastening. receiving opening, and means for moving fastenings across one opening to another opening.

34. In a fastening inserting machine hav ing a plurality of fastening receiving throat openings, a slide havinga fastening receiving opening therein and arranged to transfer fastenings across one throat opening to another.

35. In a fastening inserting machine having a plurality of fastening receiving throat openings, means for severing a fastening from a wire and transferring it past one opening to another opening, and means for preventing the fastening from entering the first opening as it moves therepast.

36. In a fastening inserting machine hav ing a plurality of fastening receiving throat openings, a slide having a fastening receiving opening therein for severing a fastening from a Wire and transferring it past one throat opening to another, and means for preventing the fastening from entering the first opening as it moves therepast.

In testimony whereof I have signed my name to this specification.

ARTHUR F. PYM.

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