US1920260A - Mechanism for supplying fastenings - Google Patents

Description

AU, 1, 11933. JQRGENSEN L92m260 MECHANISM FOR I SUPPLYING FASTENINGS Filed Dec. 6, 1930 3 Sheets-Sheet l Aug. 1, 1933. B. JORGENSEN MECHANISM FOR SUPPLYING FASTENINGS Filed Dec. 6, 1930 3 Sheets-Sheet 2 u wmp limb.

Aug. 1, 1933. B. JORGENSEN MECHANISM FOR SUPPLYING FASTENINGS 3 Sheets-Sheet 3 Filed Dec. 6, 1930 Q MM I Patented Aug. 1, 1933 Umrn STATES PATENT 1,920,260 MECHANISM FOR SUPPLYING FASTENllNGS Earnhardt .l'orgensen, Beverly, Mass, assignor ta United Shoe Machinery Gorporation, Paterson,

N. 5., a Corpcration'of New Jersey Application December 6, 1930. $erial No. 500,557

24 Claims This invention relates to mechanism for sup plying fastenings, and more particularly to mechanism having one ormore raceways for the fastenings. The invention is herein illustrated as applied to a multiple raceway mechanism of a type commonly used for supplying tacks to the tack-driving insgrumentalities of machines for pulling over or lasting shoes, as disclosed, for example, in Letters Patent No. 1,002,422, granted on September 5, 1911, upon an application of R. F. McFeely; but it is to be understood that it is not thus limited iri-its applicability.

The invention, in one of its aspects, provides novel means for preventing escape or delivery of fastenings from raceway or raceways when conditions are such that delivery of the fastenvings is not desired. in mechanism of the'type illustrated there is a separator at the lower ends of the raceways which it is sometimes necessary to remove it there is an obstruction which pro-- I vents it from Working properly,and when this is done it is desirable to prevent escape of the tacks from the raceways. For retaining the tacks in the raceways under these or other conditions, the mechanism herein shown is provided with means for applying pressure on the tops of the heads of tacks at the lower end portions 'ofthe raceways, this means, as illustrated, comprising spring-controlled plungers located over the raceways and movable downwardly to press on the tacks. By the operation of this retaining means there is, accordingly, no displacement of the tacks from the positionsthat they already occupy r in the raceways, which is an advantage especially if the tacks are of very small size; The construetion disclosed is further such that the means which presses on the heads of the tacks is con trolled by a cover over the raceways which it is necessary to lift in order to permit removal of so that insurance is afforded of the tacks if the separator is 4 to assist in the proper feeding of the fastenings'.

In the construction shown this means comprises;

a hammer mounted on the raceway cover and arranged to deliver its blows substantially midr way between the opposite sides of the group of raceways, together with means controlled by the separator mechanism for operating the hammer in predetermined time relation to'the movements of the separator. It will be evident that the use of such meansfor jarring the raceways is especially advantageous when the tacks are of their heads.

small size and therefore liable to stickon the raceways.

The novel features of the invention, including.

various novel details of construction and combinations of parts, will now he more particularly described by reference to the accompanying drawings and pointed out in the claims.

In the drawings,

Fig.1 is a perspective view of tack-supplying mechanism in which the present invention is embodied, with the parts shown in their normal positions;

Fig. 2 is a view similar to Fig. 1, showing the lower portion or the mechanism, with the raceway cover in its upraised position;

Fig. 3 is a view on an enlarged scale of a portion of the mechanism, partly in side elevation,

and partly in section, showing the parts in the same positions as illustrated in Fig. 1'; i

Fig. 4 is a view similar to Fig. 3, but showing the parts in the same positions as'illustrated in Fig. 2;; and V i Fig. 5 is a view partly in front elevation and partly in section, showing the means for jarring the raceways.

Tack-supplying mechanism of the Well-known type illustrated comprises an oscillatory tack hopper which acts by intermittent movements to supply tacks t (Figs. 3 and 4;) to a plurality of inclined raceways 12 comprising mem-' tachably held on the slide by spring-controlled retaining members which may he lifted to release it. The-slide 18 is operated by a rockshait 22 provided with gear teeth 24 in engagement with teeth formed on a rack bar 26 in which is mounted a spring 28." The slide 18 has thereon projections 30 which operate in slots in the bar 26 at opposite ends of the spring 23, so that by reciprocatory movements of the bar 26 corresponding movements are imparted yieldingly to the slide 18 through the spring 28.

Mounted in front of the lower ends of the raceways 12 is an end block .32 provided with openings 34 to receive the tacks from the separator and to deliver them into the tubes 15, this block being provided with a plate 36 which overlaps the separator 14 and in the construction herein shown terminates below the lower ends of the raceways. This end block is removable to afford access to theseparator and the lower ends of the raceways to permit removal of the separator, in order, foreziainple, to dislodge some obstruction, such as a misplaced tack, which may prevent the proper operation of the separator. To permit such removal to be quickly effected, the clock 32 is provided at its opposite ends with spring-controlled plungers 38 which normally project into openings formed in a supporting member 46 and carry pins 42 by which they may be conveniently retracted to permit removal of the block 32, substantially as disclosed in the lI'BVlOllSlY-lllElllilOllGd Letters Patent.

Mounted in a fixed position over the upper end portions of the raceways 12 is a cover plate 44, and over the lower end portions of the raceways there is a cover 46 arranged partially to overlap the plate 36 on the end block 32. The cover 46 has rearwardly-extending arms 48 which are pivotally mounted on pins 50 supported in cars on the fixed cover plate 44, so that the cover 46 may be swung upwar ly to expose the lower end portions of the raceways and to facilitate access to the separator 14 when the. end block 32 is removed. Spring-controlled plungers 52 mounted in the cover plate 44 are arranged to engage flat portions of the arms 48 to maintain the cover 46 in upraised position, asillustrated in Figs. 2 and 4, and by engaging end faces of the arms 48 these plungers also assist in holding the cover in its normal position (Fig. 3). V

a For preventing escape of the several rows of tacks from the raceways in case, for example, the operator finds it necessary to remove the separator 14 in order to dislodge some obstruction which prevents the proper working of the separator, there is provided a bar 54 which extends overthe lowerend portions of theseveral raceways and carries a plurality of plungers, 56, one for each raceway, arranged to apply downward pressure on the tops of the heads of tacks at the lower end portions of the raceways to hold them frictionally on the raceways and thereby prevent the rows of tacks from escaping. As illustrated, each plunger 56 is arranged to engage a plurality of the tacks, including the end tack, but it is to be understood that the invention is not limited to means for engaging more than one of the series of tacks. Each plungerlao is controlled by a spring 53 mounted in a recess in the bar 54 and arranged to press the plunger downwardly, such downward movement relative to the bar 54 beinglimited by. engagement of a flange so on plnngerwith the upper face of the bar. The bar 54 is provided with rearwardly extending arms 62 which are pivotally mounted on pins 64 supported in ears on the fixed cover plate 44, and the rear end portions of these arms are engaged by springs 66} -which act, when permitted, to swing the bar 54 downwardly and thus to press the plungers 55 upon the tacks. The springs 58 are weaker than the springs 66, so that they are somewhat compressed by. the downward movement of the bar 54,

thus insuring that the several plungers will be pressed efiectively upon the tacks in the corresponding raceways. For lifting the bar 54 against resistance of the springs 66 the arms 48 of the cover 46 are provided with pins 68 which are arranged to bear on the upperfaces of the rear end portions of the arms 62, the arrangement being such that when the cover 46 is in its normal position, the bar 54 is elevated to hold the plungers 56 out oi' oontact with the tacks, as illustrated in Fig. 3. When the cover is raised as illustrated in Figs. 2 and 4, the arms 62 are released by the pins 68, so that the plungers 56 are pressed down upon the heads of the tacks. Convenient means is thus provided for controlling the tack-retaining mech anism. A further advantage, moreover, in this arrangement, in the construction herein shown, arises from the fact that the cover 46 is utilized also to prevent removal of the end block 32 unl ss the cover has been lifted. For this purpose the cover carries an arm '70 which extends downwardly in front of the end block 32 so as to prevent removal of the block when the cover is in its normal position. Since, therefore, the cover must be lifted before the separator can be removed, insurance is afforded against escape of the tacks from the raceways when the separator is removed. To

assist in holding the cover 46 in its normal position, the arm 70 carries a spring-controlled plunger72 having a tapered end face arranged to contact with an inclined face on the end block 32,

as illustrated in Fig. 3.

To insure that the tacks will be properly ted along the raceways to the points where they are engaged by the separator, 14, there is provided a hammer '74 arranged to deliver blows downwardly upon the top of the cover 46 in a location substantially midway between the opposite sides of the group of raceways at the lower end of the group, so as to jar all the raceways effectively and thus to overcome any excessive friction between the tacks and the raceways such as might tend to interfere with proper feeding of the tricks.

The hammer is pivotally mounted on a pin 76 supported in ears 78 onthe cover 46 and is operated to deliver its blows by a spring 80. For lifting and releasing the hammer 74, there is mounted for reciprocatory movement in guideways on the cover 46 a slide 82 which carries a member 84 provided with a roll 86, the roll and the upper end of the member 84 being arranged to engage a pin 88 on the hammer and thus to lift and release the hammer when the slide 82 is moved toward the left. The member 84 is pivoted at 90 on the slide 82 and is controlled by a leaf spring 92' carried by the slide, so that the member may swing clear of the pin 88 when the slide is moved toward the right. An arm 94 on the member 84 is arranged to engage the upper face of theslide 82 to limit swinging movement of the member in one direction. For operating the slide 82 there is a connection between it and the separator slide 18, comprising a forked mem ber 96 fast on one end of the slide 82 and arranged toembrace a screw 93 in one end of the slide 18, as illustrated in Fig. 5. When the cover 46 is lifted, the member 96 is disconnected from the screw 98, as illustrated in Fig. 2, and when the cover is lowered the connection is again es-- tablishedbetweenthe slide82 andv the slide 18. It .will thus be seen that these two slides move in unison, and that the hammer '74 is lifted and cred at the time most appropriate for the object in view. 4

v 'hile the invention is herein illustrated as applied to mechanism especially designed'for supplying tacks, it will be understood that it is. not limited to means for controlling fastenings of that particular character.

Having described my invention, what I c'aim as new and desire to secure by Letters Patent 01 the United States is:

1. In, mechanism of theclass described, a plurality of raceways for headed fastenings, and a plurality of members movable simultaneously at the will of the operator to press on the tops of the heads of :fastenings in the several raceways for preventing delivery of fastenings from the raceways.

In mechanism of the class described, a plurality of inclined raceinys for fastenings, and a plurality oi separately yieldable members movable simultanecusly at the will of the operator to apply downward pressure to fastenings at the lower ends of the several raceways for preventing delivery of fastenings from the raceways.

3. In mechanism of the class described, a p1u= rality of raceways for fastenings, a plurality of plungers arranged to press on the tops of fastenings inthe several raceways for preventing delivery of fastenings from the raceways, and springs arranged to act respectively on the different plungers to press them upon the fastenings.

4. In mechanism of the class described, a plurality of inclined raceways for fastenings, a member movable upwardly and downwardly over the lower end portions of said raceways, and means carried by said member for applying downward pressure to fastenings in the several raceways when the member is lowered and for releas ,n the fastenings when the member is lifted.

5. In mechanism of the class described, a plurality of inclined raceways for fastenings, a member movable upwardly and downwardly over the lower end portions of said raceways, and a plurality of spring-controlled plungers, one for each raceway, carried by said member for applying pressure to the tops of iastenings in the several raceways when the member is lowered and for releasing the fastenings when the member is lifted.

6. In mechanism of the class described, a plurality of raceways for headed fastenings, a plurality of spring controlled plungers, one for each raceway, and a member movable at the will of the operator to press said plungers upon the tops of the heads of fastenings in the raceways for reventing delivery of iastenings from the raceways.

7. In mechanism of the class described, a plurality of raceways for headed fastenings, a cover for said raceways displaceable from its normal position, and means controlled by said cover for applying pressure to the tops of the heads of fastenings in the raceways to prevent delivery of fastenings from the raceways.

8. In mechanism of the class described, a plurality of inclined raceways for iastenings, a cover over said raceways arranged to be lifted from its normal position, and means controlled by said cover for applying downward pressure to fastenings in the several raceways to prevent delivery of iastenings from the raceways when the cover is lifted.

9. In mechanism of the class described, a

plurality of inclined raceways for fastenings, a cover over said raceways arranged to be lifted from its normal position, a plurality of spring controlled'plungers arranged over the respective raceways below said cover for applying downward pressure to fastenings in the raceways to prevent delivery of fastenings from the raceways, and means controlled by said cover for moving said plungers, into pressure-applying relation to the fastenings when the cover is lifted.

10. In mechanism of the class described, a plurality of inclined raceways for fastenings, a cover over said raceways arranged to be lifted from its normal position, a member movable upwardly and downwardly over the raceways below said cover, devices carried bysaid member for applying downward pressure on the tops of fastenings in the several raceways to prevent delivery of fastenings from the raceways, spring means for moving said member downwardly to press said devices upon the fastenings when the cover is lifted, and means controlled by the cover for lifting said member to release the fastenings when the cover'is lowered.

11..In mechanism of the class described. a plurality of inclined raceways for headed fastenings, a removable separator at the lower ends of said raceways, a cover over the raceways displaceable from its normal position to facilitate removal of the separator,-and means controlled by said cover for applying pressure on the tops of the heads of fastenings in the several raceways to prevent delivery of fastenings from theraceways when the separator is removed.

12.. In mechanism of. the -class described, a plurality of inclined raceways for fastenings; a

removable separator at the lower ends of said raceways, an end block removable to afford access to the separator and the ends, of the raceways, a cover over the raceways arranged to be lifted from its normal position, means carried by said cover for preventing removal of the end block unless the cover is lifted, and means controlled by said cover for applying downward pressure on the tops of fastenings in the several raceways to prevent delivery of fastenings from the raceways when the cover is lifted.

13. In mechanism of the class described, an inclined raceway for fastenings, and a device movable at the will of the operator either into or out of position to apply downward pressure to one or more fastenings at the lower end portion of the raceway for preventing delivery of fastenings from the raceway, said device comprising a fastening-engaging member and a spring arranged to be compressed in the opera-' tion of the device to holdthe member in operative position.

14. In mechanism of the, class described, an inclined raceway for fastenings, a member mounted for upward and downward swinging movements over said raceway, and a springcontrolled plunger carried by said member for applying downward pressure on the top of one or more fastenings at the lower end portion of the raceway to prevent delivery of fastenings from the raceway when said member is moved downwardly and for releasing the fastenings when the members is moved upwardly.

15. In mechanism of the class described, a raceway for headed fastenings, a cover over said raceway displaceable from its normal position, and a device controlled by said cover for applying pressure on the top of the head of one or more fastenings under the cover in the raceway to prevent delivery of fastenings from the raceway when the cover is displaced.

16. In mechanism of the class described, a group of inclined raceways for fastenings, and a device arranged to deliver blows in a location substantially midway between the opposite sides of the group of raceways at the lower end of the group to jar the raceways.

17. In mechanism of the class described, a group of inclined raceways for fastenings, and a hammer arranged to deliver downwardly directed blows over the group of raceways in a location substantially midway between the opposite sides of the group at the lower end thereof to jar the raceways.

18. In mechanism of the class described, a

group of raceways for fastenings, a device mounted for reciprocatory movements to separate fastenings from the raceways, and a hammer controlled by said reciprocatory device and arranged to deliver blows over the group of raceways to jar the raceways.

19. In mechanism of the class described, a group of raceways for fastenings, a device mounted for reciprocatory movements to separate fastenings from the raceways, and a hammer controlled by said reciprocatory device and mounted for swinging movements to deliver blows for jarring the raceways.

20. In mechanism of the class described, a group of raceways for fastenings, a device mounted for reciprocatory movements to separate fastenings from the raceways, a spring-operated hammer mounted over the group of raceways for delivering blows to jar the raceways, and a member arranged to be operated by said reciprocatory device to trip the hammer.

21. In mechanism of the class described, a group of raceways for fastenings, a separator, a slide carrying said separator, a hammer arranged to deliver blows over the group of raceways to jar the raceways, and a device connected to said slide for controlling the hammer.

22. In mechanism of the class described, a group of raceways for fastenings, a separator, a slide carrying said separator, a spring-operated hammer arranged to deliver blows to jar the race ways, another slide having means for retracting and releasing said hammer, and a connection for operating said last-named slide by the separator slide.

23. In mechanism of the class described, a group of raceways for fastenings, a cover over said raceways displa'ceable from its normal position, and a device mounted on said cover for delivering blows to jar the raceways.

24. In mechanism of the class described, a group of raceways for fastenings, a separator, a slide carrying said separator, a cover over the raceways arranged to be lifted from its normal position, a hammer on said cover for delivering blows to jar the raceways, mechanism also mounted on said cover for controlling the hammer, and an operating connection between said controlling mechanism and the separator slide arranged to be interrupted by the lifting of the cover.

BERNI-IARDT J ORGENSEN.

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