US1486979A - Fastening-inserting machine - Google Patents

Description

March F. L. MACKENZIE ET AL FASTENING INSERTING'MACHINE Filed Oct. 8, 1919 2 Sheets-Sheet 1 March 18 1924.

F. L. MACKENZIE ET AL FASTENING INSERTING MACHINE Filed Oct.

2 Sheets-Sheet 2 [N VE/V T055 Patented Mar. 1%, 1%24.

entree iaaaera FRED L. MACKENZI or BEVERLY; AND enoriencoi nu, OF WINoE sTEE, MASSA- on'csnrrs, assrenons'ro UNITED SHOE MACHINERY CORPORATION, or rArEEsoN, NEW JERSEY, a CORPORATION OF NEW JERSEY.

FASTENING-INSERTING MACHINE;

Application filed October 8, 1919. Se1ia1 No. 329,342.

To aZZ whom it may concern:

Be it known that we, FEED L. MACKENZIE and, GEoReE GroDDU, citizens of the United States, and residents of Beverly, in the county of Essex and Commonwealth of Massachusetts, and Winchester, in the county of Middlesex and Commonwealth of Massachusetts, respectively, have invented certain Improvements in Fastening-Inserting Machines, of which the following description, in connection'witli the'accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several ifigures.

This invention relateszto ing machines.

As heretofore constructed machines for inserting fastenings having a plurality of points or attaching-prongs have not infre' quently comprised means for making in the work perforations designed to receive the prongs of each fastening as it is driven. Ordinarily an awl mechanism is provided for the purpose described. In machines which insert single pronged fastenings the awl mechanism in addition to making perforations in the work is utilized almost universally in feeding the work, the arrangement being stich that the awl is caused to pierce the work and to move laterally progressing the work over the work support until the perforation is inexact "alinement with the fastening driver. Probably no difliculty would arise in operating an awl carrier carrying a plurality of awlscin the manner described forthe single awl were it not for the fact that it isotten necessary or desirable to turn the work during work feeding and fastening inserting operations to insert tastenings along a curvedpath as for instance, in driving t'astenings into the soles of boots and shoes.

It is an object of this invention to provide an improved awl mechanism for feeding the work along'a' straight or a curved path and for makinga plurality of perforations in the \JOllQ ylll each cyole'ot operations, for the reception of a plurality of fastenings or oi. a fastening having a plurality of prongs.

in the illustrative construction'means is provided for operating'the awl mechanism 1 in such manner that but one awl pierces the work preliminary to the feeding movement thereof. As shown the means for-operating fastening insertings therein.

the 'awls to cause-them to perforate the Work is individual for each awl, the operating means for all the awls having an element in common, and automatic means is provided for preventing the operation of all. butone awl at the initial work piercing position of the latter',-'the arrangement being such that the Work may belted along either astraight or a curved path at the will of theoperator. 1 In'one aspect the invention comprisesaan awl mechanism normally operative to force, a plurality'of awls into the work andmeans independent of theawl operating means and automatically operative to control said mechanism-so that but one awl is in the work at a predetermined point in the cycle of operations. i Y,

In another aspect the invention resides in a plurality of awls constructed and arranged to penetrate an equal distance part way through a piece of work to make perforations in the work for the prongs of fastenings and so operated that but one awl is trolling the awl mechanism is under the control of the operatorso that the feedingot the work may be discontinued *wlien desired. lhis 'is a marked advantage particularly when it becomes necessary or desirable to set a fastening in a certain location inthe worker a succession of fastenings in such relation to each other or to the work'jthat the work feeding mechanism cannot be advantageously utilizedtor the purpose oft-locatingthe work in properposition-tor the fastening or tastenings.

From another viewpomt the invention.

comprises an awl feed mechanism andautomaticially operating mechanism under the control ot' the operator for discontinuing the teed of the work-without interrupting the effective operation of other ing instrumentalities.

Iii-still another aspect the invention resides in an awlmechanisrn for feedingthe work and for making successively perfora tions in the Workchre'ctly atithe point of fastening msertion and l118t1-11S1f01"(l156011- tinuiiig the feed of the work by the awl with-,

out interrupting the operations of making perforations in the work and driving fastenwork operat-- i In the construction illustrated in the drawings the fastening receiving and guiding member is adapted to receive a multipronged fastening and is mounted on a movable member so that it may be withdrawn to permit a plurality of awls to move to position over the work and directly beneath the driver, so as to insure that the perforations made by the awls operated while in the described position will receive the prongs of the fastenings. Preferably also the fastening guiding member is mounted adjustably upon the reciprocable member with the object in View of making a fine'adjustment of the former with respect to the adjacent end of the raceway.

Other objects and advantages of the in vention and other combinations of parts will be described in connection with the follow-- ing detailed specification and will be pointed out in the claims. In the drawings Fig. 1 is a front view of fastening inserting machine;

Fig. 2 is a side view of the machine shown in Fig. 1; V

Fig. 3 is a sectional detail view taken along the line 33 of Fig. 1;

Fig. 4 is a detail view of a portion of the 'awl mechanism looking toward the front of the machine in Fig. 1;

Fig. 5 is a View of the parts shown in Fig. 4 looking from the right in the latter figure; and

Fig, 6 is a detail view in perspective of the combined driver guide and fastening guide nozzle.

In the illustrative machine the hopper or magazine 10 is designed to receive plural pronged fastenings in mass, means being provided for transferring the fastenings to the bar raceway 12 down which they slide to driving position. The said means comprises preferably a disk 14 having a plurality of arms 16, the disk being mounted on a shaft 18 for rotation in one direction so that the arms are caused to dip into and pass through the mass of fastenings whereby certain of the latter will be engaged by the curved edge of the arm and carried up wardly away from the mass to be later deposited on the raceway. From an inspection of 1 it will be clear that as the disk turns the fastenings will-slide from the curved edge 20 of one arm while straddling the said edge, to the straight edge 22 of the succeeding arm. In order to permit the fastenings to slide from the arm on to the bar raceway 12 the disk is given an intermittent rotary motion of such a character that the disk has an interval of rest with the straight edge of the fastening delivering arm in alinement with the raceway. The means for operating the disk in the manner described comprises preferably a plate 24 the illustrative secured to the shaft 18 and having a plurality of radially arranged slots 26 and between each pair of slots a concaved edge portion 28. Mounted in the bracket 30 extending from the head of the machine i a shaft 32 driven continuously by means comprising gears 34 and 36, the former being mounted on a shaft 38 arranged tobe driven by connections to the main shaft 40, provision being made for connect-ing and disconnecting the shaft 38 from its driving con-- nections by means not shown but arranged to be controlled by a rod 42 having a handle 44 adapted for manipulation by the operative. Fixedly attached to the shaft 32 is a crank plate 46 having an arm 48 carrying at its outer end a roller 50 designed to enter successively the radial slots 26 in the'plate 24. The crank plate 46 also has a peripheral portion arranged to slidably engage successively with the concaved edges 28 of the plate 24. The arrangement is such that as the crank plate 46 rotates the roller 50 is caused to engage one of the radial slots and thus turnythe plate 24, the curved portion of the crank plate in cooperation with the concaved edge 28 of the plate 24 serving to hold the plate stationary at certain intervals in such position that the straightedge of an arm on disk 14 is in alinement with the bar raceway 12.

As the fastenings, which in the present instance are in the form of staples, slide down the bar raceway the. foremost ones are engaged by a retaining member 54 pivoted at 56 in the raceway cover and yieldingly held in fastening retaining position by means of a spring such as that shown at 58. Means is provided for separating one fastening at a time from those in the raceway and shoving it into the combined driver guide and fastening guiding member 60 which, at the time of the operation is located in abutting relation to the end of the raceway. In the illustrative construction the means for separating the endmost fastening and positioning it as described comprises the fastening separating member '62 having a forked end. 64 arranged to straddle the end of the fastening retaining member 54, which projects beyond the end of the raceway cover, in such manner as to engage the ends of the cross bar of the staple fastening to shove the same from the end of the raceway. Means is provided for causing an oscillatory sliding movement of the member 62 so that the lower end of said member may successively engage the fastenings as described, the said means consisting in the illustrative construction of an arm 66 secured to a shaft 68 mounted in the cover of the raceway the said arm having pivoted thereto at its outer end the fastening separator 62. Mounted on the shaft 68 is an arm 70 adjustably connected to more with the shaft by means of a comprises a driver 86 oa'rried new; lower pin and slot connection with aiprojecting member 72 rigid1 secured to the shaft. Rocking movement is imparted tothe shaft 68 by means of a lever 74% pivotedait 7 6 in the 'frame of the machine and carrying a roller 78 held constantly in contact'with the of the cam 80 by means of aspring 82.

The lower end of the lever 74: is p-ivotally connected toablock 184Lslidable in the'end of the arm 70. It will-be evident that oscillation of the 'le'ver'74c causes a rocking motion of the shaft 68 fwhereby the fastening separator is oscillated to engage the fastenlngs successively and sheve the'm'from the end of the'racew'ay.

The mechanism for driving the fastenings end of the driver bar'88 which is lifted by a cam on the main shaft and operated in its driving stroke by means ofthe spring actuated arm 90, though obviously the driv movable so that it may be displaced and thus permit the awl mechanism toposition the work with theperforations directly-in the line of drive. In the illustrative construction the awl moves along'from' the right with its point engaged in the work while the combined driver guide and nozzle is dis placed rearwardly, the latter as shown being mounted on a sl dmgbar 92 by means comprising a slot andlbolt 94 by which adjnstment of the guide member 60 may be made. Means 18 provided for reciprocatmg the slide 92 in properly timed relation to the other mechanisms comprising, in the construction shown, a lever 96 p voted at 98 and carry ng at its upperend a roll movable along the cam slot 100 in the cam 102 on the -main-shaft. The lower end of the lever 96'i's provided with a segment rack 104 having teeth in mesh with teeth on the rear end of the slide. H

ment which results in the formatlon of perforatlons to receive the fastening or fasten- The-awl mechanism in the illustrative c011- strnction eon'iprises a slide 106 reciprocable in a guideway 108 by means comprising a lever 110 pivoted at 112 on the bracket 114 extending from-the head of the machine and carrying at its upper end a roll 116 movable along the cam slot 118. The throw of the lever 1191 may be determined by proper adjustment of its fulcrum 112 in the slot 120111 the bracket 114 Extending laterally from the slide 106 is a-stud 122 enclosed by an eccentric sleeve 12 1 carried by the lower end of the lever 110 whereby straight line' reciprocations of the slide are caused by the rocking of the lever 110 without any binding ac- A tion'at the point of connection. Preferably part of the guideway above the slide 106and is made adjustable by set screws'or bolts125.

In the preferred "construction the forward 7 'end' of the slide 106 'is' enlarged to provide a casing or housing 126 within which is slidably mounted a carrier 128 enclosing two awl bars13O slida-ble'with respect to the carrier ;and p'royi ded at their lower ends vvitlr The operative connections be awls 132. tween'the' ca'rr1er128 and the awl bars coinprise an abutment 134 on'the carrier ar ranged to engage beneaththe lower ends of the awl barsat'the point 136 so that upon upward movement of the carrier the 'awl" bars will be positively'retracted in a direction away 'from'the work. The saidopera t1ve connections comprise also a pair of latchesf138 pivoted on the carrier at 1450 ad- T I j'acent the upper end of the carrier and acted upon by springs 142 to cause the lower'end 144; ofeach'latch to'eng'agein a notch; 14:6

in'the corresponding awl ban the construct1on bemgfsuch that-downward movement of the carrier 128 causes also downward movement of the ajwl bars, that is when the latches are in operative position, to force'the 'awls into the work. Clearly,if either one or both of the latches are so tipped as toremo've the end 144 from the notch in its'respecti've' and bar, no operative stroke of the awl bar or bars would follow a downward movementof the'carrier and thus either orboth: awls, as the case maybe, wouldfail to pen'et'r'ate the Work.

from the work comprising preferably aflever 148 (Fig. 2) pivoted at 150 in theframe of the maohin'eand carrying a roll which moves in the cam slot 152 in, the cam 102 on the main shaft of the machine, the said lever bemg operatively connected to the awl Vcarrier by means of intermeshing teethonthe segmental rack 154C and the straight rack156 on the c'a'rrien. Thecamslot 152 is so fcon structed that the piercing movement otthe awl preliminary to the teedlng movement ther'eofis not so'great as the. piercing movesnflicient to permit of the lateral, movement of said carrier witl1out possibility of'disei1- gagement of the teeth on the respective rack's. v

One. of the contemplated'us'es of 'the-fastening nserting machine disclosed 1s 'tha-t' o'tinserting two-pronged fastening-s inthe Means is provided for positively 1 moving the awl carrier 128 toward and soles of shoes by a mechanism which not i only inserts the fastening but provides ea wh re fi r9111? we: is ent tently fed to proer'position'for' the insertion ofeach'fastening- In the illustrative construction there is provlded means for 1s their lower ends 14% are moved out of perforating the work for both prongs of the double pronged fastening, the said means comprising awls, one of which is utilized to feed the work, it being impracticable to use both awls in the feeding of the work since the shoe must be turned in passing from one side around the toe to the other side of the shoe. Hence, the construction is such that one awl is caused to pierce the work and to move it into feeding direction and this operation is followed by such an operation of the awls as will provide perforations in the work for both prongs of the fastening. In the illustrative construction one of the awls is automatically thrown out of operation as the awls return to initial piercing position preliminary to the feeding operation. As shown, a tl1row-out member 158 (F 3) is mounted on the bracket or stationary guideway for the slide in such position as to be contacted by the arm 160 of the front latch. thesaid arm riding up over the member 158 in such manner as to lift the end 14 1- of the latch out of the notch 146 in the front awl bar. Immediately thereafter the carrier 128 is depressed through the operation of the lever 1 18 to force the rear awl into the shoe sole. Subsequently. the slide 106 together with the carrier 128 are moved to the left (in Fig. 1) to cause the awl to feed the work the arrangement being such that the awl places the perforation directly below the end of the driver 86, the guide .member 60 being at that time in rearward depth as this would result in a difference in the resistance encountered by the two prongs of the fastening. The aw ls are then withdrawn and moved laterally and the combined driver guide and fastening guiding nozzle moves a fastening which is later driven by the driver into the perforations made by the awlsr Subsequently the awl pierces the! work preliminaryto another work feeding operation during which the work is released by a slight depression of the work support.

Occasionally it is desired to omit the feeding operation of the work and insert fas tenings in positions determined by the operator. For thi purpose both of the catches forwardly to receive.

1.88 are automatically released from connection with their respective awl bars; that the notches 14:6 in the awl bars when the slide moves to the right in Fig. 1; that is, to the initial work piercing position when the work is to be fed. The means in the construction shown for throwing the feeding awl out of operation comprises a member 16 1 3) which may be lifted to operative, dotted-line posit-ion upon turning the cylindrical member 166, the latter being connected to the throw-out member 16 1- by an eccentric stud 168. For the convenience of the operator in turning the member 166 a handle 170 is provided integral with or securely attached to a member 166. For holding the cylindrical member 166 in position wherein the throw-out 16 1 is operative, a leaf spring 172 is arranged to Contact with a flat surface on a connectingportion between the handle and the cylindrical member. From an inspection of Fig. 1 it will be seen that two such fiat surfaces are provided for holding the member 166 in the awls toward the driver. However, when the awls have reached a position beneath the driver they will be reciprocated and caused to pierce the work, thus providing perforations in which the points of the fan toning will be received.

Under certain conditions it may be desirable to use both awls in feeding the work as when feeding work of considerable width in a straight line, the entrance of both awls tending so to control the work as to in intain a straight line feed. The machine is readily adapted for such a manner of operation simply by removing the throw-out member 158 which, as shown in Fig. 3, is secured in place by a set screw 176, the lat ter making it possible to remove and 1 place the throw-out member as desired. With the throw-out member 158 removed or otherwise rendered inoperative and the throw-out 16k in inoperative position as shown in Fig. 3 in full lines, both awls w be caused to enter the work upon dowm d movement of the carrier 128 preliminai v to movement of the carrier and slide to the left in Fig. 1. When the work has been moved. to proper position both awls are lifted and then given an operative stroke to make perforations for the fastening.

Having described my invention, what- 1 claim as new and desire to secure by Letters Patent of the United States is 1. In a machine of the class described,

two awls, means for forcing one of the awls 'ing operation.

2. In a machine of the class described,

' two awls, awl bars for carrying said awls,

means operative to move the awl bars toward the work, means for automatically disconnecting one of the awl bars from said means so that only one awl is forced into the work preliminary to the feeding operation on the work, and means for moving the awls in the direction of feed to feed the work. a

3. In a machine of the class described, two awls, means normally operative to force one of the awls into the work preliminary to the feeding operation, and manually controllable means arranged to be automatically operative to disconnect said awl from its operating means so that neithe" awl is caused to penetrate the work preliminary to lateral movement of the awl thus eli1ninating the feeding of the work.

4. In a machine of the class described, an awl, means for moving the awl to cause it to penetrate the work and feed the same preliminary to a fastening inserting operation, a second awl arranged in parallel relation to the first mentioned awl, means for lifting both awls subsequently to the feeding of the work and for driving them simultaneously into the work to make perforations therein.

5. In a machine of the class described, an awl, means for forcing the awl into the work and for moving it laterally sothat the work is fed by one awl only, a second awl, means for operatively connecting the awls to each other, and means for forcing the awls simultaneously into the work to provide perforations of equal depth therein.

6. In a machine of the class described,

awls, awl bars for carrying said awls independently movable with respect to each other, means for causing one awl to penetrate the work prior to the other to feed the work, and a single means for operating both awl bars as a unit to cause both awls to'penetrate the work preliminary to a fastening inserting operation.

i 7. In a machine of the class described, means for driving fa-stenings comprising a fastening driver and a stationary guide therefor,a plurality of awls to provide perforations for the fastenings, means for inserting one awl only into the Work to, efiect a feed of the work, and means to cause insertion of the awls an equal depth into the work preliminary to a fastening inserting operation.

8. In a machine of the class described, two awls of'the same length, awl bars carrying said awls, a lever to move one awl to cause it to penetratethe work, andmeans to cause said awl to feed the Work before the other awl is operated to engage the work, said lever being operative to force both awls into the work preliminary to a fastening inserting operation.

'9. In a machine of the class described, a plurality of awls, awl bars for carrying said awls, a lever and connectmg means between the lever and awl bars for operating the bars 7 independently of each other to force the awls at different times into the work so that fastening inserting operation.

10. In a machine of'the class described,

awls of equal lengths, awl 'bars carrying said awls, a single lever for operating the awl bars, said parts being constructed and arranged to cause'one awl to enter the work in advance of the other, and means to cause the awl first entering the work to feed the same. r r

11. In a machine of the class described, a plurality of awls, awlbars for carrying said awls movably independently ofeach other, means for reciprocating the awls to ward and from the work, and means operating automatically; to disconnect all but one awl bar from the operating means so that the awl bar which remains connected may be utilized to feed the work, and means for moving the last mentioned awl, bar in the direction of feed to feed the work.

12. In a machine of the class described, a plurality of awls, awl bars forcarrying the awls movable independently of each other, means for moving the awl bars simultaneously toward and from, the work, and means under the control of the operator for automatically disconnecting one or more of the awl'bars from said operating means.

13. In a machine of the class described, fastening means comprising a driver for inserting two-pronged fastenings, a combined driver guide and fastening'guiding nozzle movable into and out of position beneath the driver, means for feeding a fastening into said fastening guiding nozzle after the latter has come to rest under the driver, and means comprising two awls movable to a position in alinement with the driver for piercin gthe work directly beneath the driver, thus ensuring that the perforations will be in exact position to receive both prongs of the fastenmgs.

14. In a fastening inserting machine,

proper position for the insertion of a fas tening.

15. In a machine of the class described, a plurality of awls, aWl bars carrying said aWls, means for moving the avvl bars in direct-ions at right angles to each. other to cause one ZLWl to enter the ork and feed the same laterally, means for operating both awls simultaneously in one plane to cause them to make. a plurality of perforations in the Work preliminary to a fastening inserting operation, and means under the control of-the operator for rendering said and ineffective to feed the Work.

16. In a machine of the class described, a plurality of aWls, and bars for carrying said awls, a slide for moving said bars back and forth in the direction of feed of the Work, means for causing one of the awls to penetrate the Work so that the Work Will be fed on reciprocation of said slide, means for operating both aivls to make a plurality of perforations in the Workpreliminary to fastening inserting operations, and means controllable by the slide forrendering said and inoperative to feed the Work.

17. In a machine of the class described, a plurality of awls, itWl bars for carrying said awls, a slide in vv rich the awl bars are independently movable,-means for reciprocating the slide in the direction of feed of the work, means for automatically disconnectmg one of theawls from its operating means,

means for forcing the other ZLWl into the Work to feed the Work during the reciprocation of the slide, and means for operating both aWls to perforate the work preliminary to a fastening inserting operation.

18. In a machine forinserting fastenings into Work, means comprising an and for op erating on the Work to feed the same, and means under the control of the operator for automatically discontinuing the feed of the Work Without interrupting the insertion of fastenings.

19. In a machine of the class described, an aWl, means normally operative to move the and to pierce the work, and means under the control of the operator for automatically disconnecting said and from said means for one or for a plurality of fastening inserting operations so that the ZtWl is not forced into the Work to cause a feeding of the Work, said first-mentioned means being operative to perforate the Work prior to a fastening inserting operation.

20. In a machine of the class described, an

aWl, means normally operative to force the ZLWl into the Work preliminary to the feeding operation, and manually controllable means arranged to be automatically operative to disconnect said awl fromits operating means for one .or for a plurality of cycles of the machine so that the 'awl is not caused to penetrate the Work preliminary to lateral movement of the and thus eliminating the feeding of the wor: by the machine.

21. In machine of the class described, a plurality of aWls, means for moving one awl only to cause it to penetrate the Work and feed the same preliminary to a fastening inserting operation, and means for lifting both awls subsequently to the feeding of the Work and for driving them into the Work to make perforations tl'ierein.

22. In a machine of the class described, plurality of aWls, means for operating the aivls to make perforations in the work, and means independent of the operating means and automatically operative to control said means so that but one aWl enters the work at a predeterminedpoint in the cycle of op erations.

23. In a machine of the class described, aivls, aWl bars for carrying said awls independently movable with respect to each other, a single member for causing penetrating movement of the 'awls, locking members for operatively connecting the and bars to said member, means for causing one aWl to penetrate the Work prior to the other to feed the Work, and means comprising said single member arranged to operate subsequently to the feeding of the Work to cause both aWls to penetrate the Work preliminary to a fastening inserting operation.

24. In a machine of the class described, a driver for fastenings, means for operating the driver, the construction and arrangement being such that the driver is held against lateral movement, tivo aWls, means for inserting one and only into the Work and for'eifecting a feed of the Work, and means to cause simultaneous insertion of both aWls an equal distance into the Work preliminary to a fastening inserting operation.

25in a machine of the class described, a fastening driver, an and mechanism operable for making successively perforations in the Work at a point directly in line With the driver and for feeding the Work, and means for discontinuing the feed of the work Without interrupting the operations of per- 27. In a machine of the class described, 1-.-.::'

fastening inserting mechanism comprising a fastening driver, an aWl for feeding the Work and movable into alinement With the driver and operable While in such position for making perforations in the Work in lilll lid which fastenings can be inserted, and means for stopping the feed of the work by the awl mechanism without interfering with the making of perforations for the reception of fastenings.

28. In a machine of the class described, a plurality of awls one of which is normally operative to pierce the work to feed the same and place the perforation in the line of fastening insertion, said awls being operable to provide perforations in the work into which fastenings may be inserted, and means for preventing the piercing of the work which normally takes place preliminary to a feeding operation whereby the feeding of the work is discontinued without otherwise interrupting the operation of providing perforations for said fastenings.

In a machine of the class described, awl mechanism comprising an awl for piercing and feedin the work, means for operat ing the awl to pierce the work comprising a readily operable means for locking the awl to its operating means, and means for automatically releasing the awl from the locking means, so that the awl does not pierce the work to feed the same. 7

30. In a machine for driving tWo-pronged fastenings, a fastening driver, a raceway, a member for receiving fastenings from the end of the raceway and holding them one at a time for the action of the driver, an awl for feeding the work, two awls, including the first-mentioned awl, movable into,

position in 'alinement with the driver and operable while'in such position to form two perforations for the double-pronged fastening, a reciprocable member for carrying said first-mentioned member, and means for adjustably securing the receiving member on the reciprocable member so that the former may be adjusted with respect to the end of the raceway.

31. In a machine fordriving multipronged fastenings, a fastening driver, a member for receiving and guiding the fastenings during driving operations, the 7 said member being movable into and out of position beneath the driver, and a plurality of awls movable into alignment with the driver and operable while in such position to form perforations for the multipronged fastenings so as to ensure that the perforations will be located accurately to receive the prongs of the fastenings.

32. In a machine for driving multipronged fastenings, a fastening driver, a member for receiving fastenings and holding them one at a time for'the action of the driver, an awl for feeding the work, and a plurality of awls movable into position in alignment with the driver and operable while in such position to make perfora- 'tions for the fastenings thus ensuring that the perforations are so located as to receive the'prongs of the fastenings.

33. In a machine of the class described, a fastening driver, a member fo 1 receiving fastenings and holding them one at atiine operating the awls subsequently to the feed ing operation to provide a plurality of perforations into which fastenings may be driven by said driver. v

35. In a machine of the class described, means for driving fastenings comprising a fastening driver and astationary guide therefor, and means comprising a plurality of awls operative to feed the work in a straight line beneath the fastening driving means and for making perforations in the work for the reception of the fastenings.

36. In a machine of the classdescribed, a work positioning abutment, a tool for operating on the work, means comprising an awl for operating on the work to feed the same, and means under the control of the operator for automatically discontin-' uing the feed of the work without interrupting the operation of the tool upon work pressed against said-abutment. V

37. In a machine of the class described, means for operating on work comprising a tool and a work support, means comprising an awl for feeding the work, and means under the control of the operator for discontinuing the feed of the work without interrupting the operation of the first mentioned means.

38. In a machine of'the class described, a raceway for fastening-s, a fastening guiding member for receiving the fastenings one at a time from the end ofthe raceway, a reciprocable bar upon which the guiding member is mounted for movement out of and'into position in alignment with the end of the raceway, and means for adjustably connecting the guiding member to its supporting bar.

39. In a machine for providing perforations for fastenings to be driven part way only through the thickness of the material being operated on, an awl, means for forcing the awl into the work and for moving it laterally so that the work is fed by the awl," a second awl, and means for forcing the awls simultaneously into the work to provide perforations of equal depth therein for the reception of the fastenings.

40. In amaohine for providing perforations for fastenings to be driven part Way only through the thickness of the material being operated on, a plurality of :tWls, means for forcing one of the awls into the Work and for moving, it laterally so that.

the Work is fed by the :tWl, and means for forcing the awls simultaneously into the 10 Work to provide perforations of equal depth therein vfor the reception of the fastenings. In testimony whereof We have signed our names to this specifieetion.-

FRED L. IVIACKENZIE. GEORGE GODDU.

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