US2274685A - Eyeleting machine - Google Patents

Description

5. L. GOOKIN EYELETING MACHINE March 3, 1942 3 Sheets-Sheet 1 Filed Jan. 24, 1959 March 3, 1942. s. GOOKIN 'EYELETING MACHINE Filed Jan. 24, 1959 s Sheets-Sheet 2 March 3, 1942.

S.L. GOOKIN EYELETING MACHINE Filed Jan. 24, 1939 Figg l.

3 Sheets-Sheet 3 Patented Mar. 3, 1942 EYELETING MACHINE Sylvester L. Gookin, Quincy, Mass, assignor .to

United Shoe Machinery Corporation, Borough of Flemington, N. J., a corporation of New Jersey Application January 24, 1939, Serial No. 252,599

19 Claims.

This invention relates'to eyeleting machines and more especially those for inserting invisible eyelets in shoe-uppers. The invention is herein disclosed as embodied in a high-speed automatic eyeleting machine that includes means for punching holes one at a time in the work and mechanism for feeding the work step by step to space successive eyelets inserted in a series in each run of the machine.

Because of the fact that the prongs of a clenched invisible eyelet lie between two layers of the work (in a typical shoe-upper they are the outer leather and a stay-strip) and separate them, the prongs form mounds in the outer layer.

These mounds are considered objectionable, and 1 to reduce them the eyeleting operators in shoe factories have heretofore hammered them, thereby flattening the clenched and concealed prongs and embedding them in the flesh side of the outer leather.

One of the objects of the present invention is to provide an improved automatic eyeleting machine that will not only punch lacing holes and feed the work, but will also compress the work against each eyelet in process of being clenched, and thereby compress the eyelet and embed its prongs in the outer leather.

Another object is to provide improved means I for making ornamental impressions in the outer surface of the outer leather.-

In the illustrated machine both of these objective operations are performed by one mechanism which also performs, at an intermediate stage, the well-known function, indispensable to successful invisible eyeleting, of locating the work in the plane necessary to insure that the prongs of an eyelet in process of being inserted will enter between the outer leather and the staystrip without fouling either of them. For this latter purpose every successful eyeleting machine equipped for invisible eyeleting includes an element usually termed an abutment. To fulfill the object of making ornamental impressions, the abutment herein shown is a hardened steel die having a desired ornamental design in its impression surface.

The illustrated machine is so organized that the abutment cooperates first with a fiat stationary punch-bed to make the desired impression in the outer leather; thereafter the abutment stands still at the position required to brace the Work while the prongs of an ingoing eyelet are being spread between the outer leather and the stay-strip; and finally, the abutment is shifted toward the advancing eyelet-inserting tool with which it cooperates to compress the work. and thereby flatten the prongs of the clenched eyelet.

The novel features above mentioned and others hereinafter described and claimed are illustrated in the drawings.

Referring to the drawings,

Fig. 1 is a vertical section of a portion ,of an eyeleting machine in which the present inven:

tion is embodiedgthe front of the machine being at the left;

Figs. 2, 3 and 4: are schematical sectional views representing successive stages of a cycle of operations;

Fig. 5 is a View similar to Fig. 1 except that it includes fewer elements and represents the punching stage of a cycle of operations otherwise represented in Fig. 2\;

Fig. 6 is a vertical section of an assemblage including thetool for punching and feeding the work and the abutment for impressing the outer leather and compressingthe clenched eyelets;

Fig. 7 is a horizontal section through the structure intersected by line VII-.VII of Fig. 6;

Fig. 8 is a top plan View of abell-crank lever (projected from Fig. '7) for imparting, individual operation to the impressing and compressing member;

Fig. 9 is a perspective view of a sleeve by which the impressing and compressing member is carried;

Fig. 10 is a face View of a portion of a typical shoe-quarter that has been ornamented and provided with invisible eyelets by the illustrated machine; 7 V 1 Fig. 11 is a vertical section including a portion of a raceway, the eyelet-inserting tool and two trains of mechanism, one foroperating the raceway and the other for operating the inserting tool;

Fig. 12 is a top plan view of parts of the race way-operating mechanism;

Fig. 13 is a vertical section including two operating mechanisms, one for furnishing the punching motion and the other for furnishing the work-feedingmotion; and

Fig. 14 .is a face view of a member designed to form an ornamental annular impression in the work.

The general organization of the illustrated machine is similar to that disclosed in Letters Patent of the United States No. 1,228,768, granted June 5, 1917, on application of P. R. Glass, although some of its details of construction are of different design but do not involve any radical difference in its mode of operation except with regard to the novel results produced by the supplemental mechanism constituting the subjectmatter of the present invention. To prepare a basis for a clear understanding of the novel re sults with which the present invention is concerned, a description of the well known machine organization and its mode of operation will be given first.

The work, such as a quarter l4 of a shoe-upper (Fig. 10), is presented for operation by being. placed upon a flat and rigid supporting bed l5 including a hardened steel'punch-block [5; A presser-foot IT is normally 'depressed'by aspring (not shown) to clamp the work against the bed i 5 but is raised by a cam once ineach cycle of operations to permit the work to be fed for the purpose of spacing successive eyelets one from another. A tubular punch l3 cooperates with the punch-block 16, as shown in Figs. 2

and 5, to punch a hole through'all the layers of the work-piece. A typical shoe-quarter such as that illustrated comprises three layers including the outer leather I9, a leather lining 20 and an intermediate strip 2| of wovenfabric usually termed an eyelet-stay and provided to reinforce the anchorageof the eyelets.

Forthe purposes of invisible eyeleting, the punch I8 is provided with an annular setting shoulder 22, the diameter of which is restricted to little more than the diameter of the punching portion, to enable the shoulder to pass through the hole punched in the outer leather !9 and direct the prongs 21 of an ingoing eyelet between the layers l9 and 21. Referring to Fig. 6, the butt-end of the punch is provided with an external screw-thread and is screwed into a socket 23 in the lower end of a vertical punch-bar 24. The socket 23li's, extended to providea passagewaythroughwwhich the chips of, the work, may pass to be discharged through an outlet port 25 in a sleeve 26, see Fig.9. The punch-bar 24 receives its punching motion from one of the power-operated mechanisms shown in Fig. 13 and it receives its sidewise feeding motion from the other mechanism shown in that figure.

The punching motion is furnished by a train of mechanism comprising toggle-members 28 and 29 (Fig. 1), a link 30, a lever 31 and a cam 32 (Fig. 13). The cam 32 is carried by. a powerdriven shaft 33 and this shaft is operated and controlled by well-known starting and stopping mechanism including a clutch (not shown) by which any desired number of revolutions for each run of the machine may be had according to the length of time the operator maintains a controlling treadle in its depressed position. A clutch of this type is disclosed in United States Letters Patent No, 2,056,316, granted October 6, 1936, on my application and treadle mechanism for controlling such a clutch is more fully described in United States Letters Patent No. 2,012,299, granted August 27; 1935, on application of M. L. Bliss. The cam-lever 3| is mounted on a fulcrum-pin 34, th forward end of the link 30 (Figs. 1 and 5) isconnected to the togglemembers 29 by a pivot-pin35, and the toggle memb'ers'n are connected to the toggle-members 29 by pivotstuds 36. The motions of the lever 3| are also utilized as heretofore to operate the presser-foot I! by means of another train of connections including a link 37 and parts not herein shown.

The bearings in which the punch-bar 24 slides are formed in a horizontally movable feed-carriage 38 (Fig. 1) to which to-and-fro motions are imparted by a train of mechanism like that shown and described in the Glass patent above mentioned. Such mechanism comprises an arm 39, an oscillatory carrier 40 to which the arm is afi'ixed, regulatable mechanism (not shown herein) for varying the amplitude of angular movement imparted to the carrier, a link 4| (Fig. 13), a slide 42 and a cam 43 carried by the shaft 33. The to-and-fro motions of the link M are communicated in well-known manner to the carrier 40 (Fig, l) which is mounted on a stationary vertical fulcrum-pin 44. The operatingconnection between the arm 39 and the carriage 38 is provided by a block 45 and a pivot- .stud 46 extending therethrough. Two parallel in a slot 6| in the lever. The block 59 is made in separable sections merely for assembling purposes. The .crank- 60 is anintegral portion of the cam-shaft 33. Thelever 55 is mounted on a fulcrum-pin B2. The pivot-stud 58 is secured to a collar 63 and this collar is affixed to theeyelet-inserting bar 5|. When thebar 5| is-at or near the lower limit of its range of travel the spindle 53 is below the delivery end of the raceway 54 which oscillates sidewise to present an eyelet to the spindle and thereafter to clear the inserting tool'52. -This tool carries theeyelet upwardly and thereby inserts it into the work and clenches it as shown in Figs. 3 and 4. i

A train of mechanism for operating the raceway 54 to present the eyelets to the spindle 53 is shown in Figs. 11- and 12. It" comprises a'link 64, a bell-crank65, a universal connection 66, a link '61, a lever 68 and a conjugate cam 69 carried by the shaft 33. The bell-crank lever 65 is mounted on a vertical fulcrum-pin 51, and the cam-lever 68 is mounted on the fulcrum-pin 34.

The several trains-of mechanism are shown in their initial positions in Figs. 1, 11, 12 and 13, where they are arrested at the conclusion of each run of the machine. When the machine is stopp d the punch-bar 24 is raised and is in register with the punch-block l 6 but not in register with the eyelet-inserting tool52; the feedcarriage 38 stands at theright-hand limit of its range of travel; the eyelet-inserting bar 5| stands at an intermediate point in its down-stroke; and the raceway 54 stands at an intermediate point in its travel toward the path of-the eyelet-inserting tool 52. To place a work-piece such as a shoe-quarter l4 (Fig. 10) in the desired position on the work-supporting bed 15, the operator will operate a treadle (not shown) by which the presser-foot I! may be temporarily raised to permit the work to be-inserted under it. When the presser-foot is released it will descend to the level represented in Fig. 1 where it will clamp the work against the bed.

The first operating motion in a cycle is a downstroke of the punch-bar 24 by which the punch I8 is depressed against the punch-block to punch a hole through all the layers of a work-piece as shown in Fig. 2. To produce this punching stroke, the toggle- members 28 and 29 are moved to the position shown in Fig. in which the knee of the toggle is on dead center. The toggle does not stop at this position but moves beyond it to raise the punch 18 slightly from the punchblock but not far enough to withdraw the punch from the work. While the punch is passing through the work, the presser-foot l'l rises to relieve the work from clamping pressure and remain up until the toggle members 28, 29 begin their return stroke. Now, while the punch is thus slightly raised but still in the work and almost in contact with the punch-block, the feedcarriage 38 is shifted from right to left, thereby moving the punch to its upsetting position in register with the eyelet-inserting tool 52. At this position the punch stands still through a short time interval while an eyelet is inserted and almost completely clenched by upward movement of the tool 52.

When the tool 52 has risen far enough to complete the insertion of an eyelet, but before it quite reaches the limit of its upstroke, the knee of the toggle 28, 29 starts its return stroke to its initial position, incidentally passing its dead center position. The shoulder 22 is thus moved slightly toward the tool 52 before receding therefrom. Fig. 3 corresponds to this dead-center position of the toggle, the upstroke of the tool 52 being almost but not quite completed. The re- 1 mainder of its upstroke lifts the work slightly from the punch-bed l6 (Fig. 4) because no further insertion of the eyelet is possible after the flange of the eyelet strikes the work. While the inserting tool is moving upwardly from the posi- :1

tion shown in Fig. 3 to that shown in Fig. 4, the

prongs 21 of the ingoing eyelet are pressed down by a novel mechanism hereinafter described.

Since the diameter of the upsetting shoulder 22 may be only slightly larger than that of the punch 18, and since the curve that characterizes the profile of the upsetting shoulder must not be so abrupt as to crush the barrel of an eyelet lengthwise, it follows that the prongs 21 of an ingoing eyelet have a component of upward movement after their tips move beyond the upsetting shoulder. Consequently, the prongs become slightly humped or crowned and produce the aforesaid mounds in the outer leather 19 (Fig. 3) that have required hammering after the work is removed from an eyeleting machine.

All the mechanisms and operations hereinbefore described are well known, and the description will now set forth the novel subject-matter by which improved results may be obtained.

Referring to Figs. 5 and 6, the sleeve 26 carries a detachable member of hardened steel that closely surrounds the shank of the punch. These members 26 and 10 constitute an individually operable unit that partakes of all the movements of the punch-bar 24, and the invention provides for utilizing them to perform three distinct functions; first, to form an ornamental impression in the outer leather l9 (Fig. 2), second, to prevent the outer leather from being pushed too far above the upsetting shoulder 22 by an ingoing eyelet, and third, to compress each clenched eyelet and thereby flatten its prongs (Fig. 4) and at the same time embed the prongs in the inner surface of the outer leather. first of these results is obtained simultaneously with the punching operation, the second simultaneously with the inserting of an eyelet, and the third during the final stage of clenching movement of the inserting tool 52.

The

' to the punch-bar 24 as by a pin 82.

The work-engaging surface of the member 10 may be smooth and flat or of any desired ornamental characteristic, and a variety of these members, differing only in the form of their impressing surfaces, may be substituted one for another. To facilitate such substitution, member 10 may be provided with a frusto-conical portion H and a circumferential flange or shoulder 12 to sustain operating pressure. The impression surface of the member 10 herein shown is characterized by a narrow circular bead 13 adapted to impress a circular groove 14 in the outer leather (Figs. 2 and 10). As shown, the bead l3 and thepunch iii are concentric. The

lower end of the sleeve 26 is sawed to provide two diametrically opposite leaf-springs or tongues 16, the tips of which are bent inwardly as shown in Figs. 2, 4 and 9 to grip the frusto-conical portion H when the members are coupled and to maintain the pressure-sustaining shoulder 12 in contact with the lower end of the member 26. When the punch-bar 28 stands in its initial position, the member 10 may be readily detached from the sleeve 26 with simple telescopic movement by drawing it downwardly with the fingers, and another member 10 may be coupled to the sleeve by pressing it upwardly with the fingers, the tongues 16 having sumcient resilience to be spread apart by the conical portion 1 I.

The sleeve 26 hasa bearing on the lower portion of the punch-bar 24 (Fig. 6) and is capable of limited individual sliding movements up and down, not only for individual operation but also for preliminary adjustments according to the thicknesses of leather used for outer layers 59 of shoe-uppers. For adjusting purposes, a pin I1 is driven tightly into the upper end of the sleeve 26 and projects a short distance above it to engage a smooth frusto-conical portion 78 of an adjusting screw 80 (Fig. '7). This screw is carried by an internally threaded bracket Bl afiixed The pin 71 has access to the adjusting screw through a short vertical hole in the bracket 8| (Fig. 6) and this constitutes one means for preventing rotation of the sleeve 26. The bracket 8! also supports a fulcrum-pin 83 on which duplicate arms of a lever 84 are mounted. These arms are rigidly connected by a web 85 that receives impacts from a horizontal ram lllfl (Figs. 1 and 5) to impart individual operation to the sleeve 26.

The arms of the lever 84 straddle the upper portion of the sleeve 25 and cooperate with shoulders 88 thereof to shift the sleeve up and down. A compression spring 89 (Figs. 6 and 7) inserted into a socket in the bracket 8! exerts its force against the web 85 of the lever and thereby maintains the pin Tl normally in contact with the under side of the adjusting screw 89. This adjusting means does not, however, prevent individual movement of the sleeve, since the pin Tl may slide freely up and down in the hole bored for its reception in the bracket 8|.

The train of mechanism for imparting individual operation to the sleeve 26 is shown in Fig. l and comprises the aforesaid lever 84, the ram HIM), a lever 90 and a cam having a short high portion $1, a longer high portion 92 and concentric low portions 93 and 94. This cam is carried by the shaft 33 and rotates in the direction indicated by an arrow. A stud Q8 ad justahly clamped in the lever 99 carries a camroll 95. The fulcrum of the lever 90' is the pin 34. The ram I01! includes two parts, the rear part 96 being bored and internally threaded and each the forward part being threaded and screwed into it. The rear part 96 is formed to straddle the lever 99 by which it is prevented from turning. The effective length of the ram may be regulated by turning the forward section thereof which is provided with a hexagonal portion for that purpose. The ram has one fixed bearing 86 in the frame 50 and another in a bushing 81. A compression spring 99 normally retracts the ram from the web 95 (Fig. 8) and maintains the roll 95 in contact with its operating cam. It also prevents accidental turning of the forward section of the ram by its engagement with a collar I02 afiixed to that section. The initial clearance between the ram and the web 85 provides for regulating the primary adjustment of the sleeve 26 by turning the screw 80.

Referring to Figs. 6, 7 and 8, the web portion 85 of the two-armed lever is extended both vertically and horizontally to maintain some portion thereof in register with the ram I00 under all conditions even though the ram remains on a fixed axis and the lever 94 is carried up and down by the bar 24 and shifted from side to side by the feed-carriage 38.

Referring to Fig. 1 the radial lines I, 2, 3 and 4 intersect those portions of the cam that engage the roll 95 at successive stages of a cycle corresponding to the stages represented in Figs. 1, 2, 3 and 4 respectively. Accordingly, during the first portion of a cycle of rotation of the camshaft 33, the cam-roll 95 will remain on the concentric low portion 93 without imparting any movement to the ram I00, but during this stage the sleeve 29 and the lever 84 will be carried toward the work-supporting bed I5 by the punchbar 24. While the punch I8 is passing through the work, the short high portion 9| of the cam will operate the ram I00 (Fig. 5) and thereby depress the sleeve 29 relatively to the punchbar. The impressing member ID will be thereby impressed into the outer leather I9, as shown in Fig. 2, and will thus form an ornamental impression I4 (Fig. 10) in the work while the latter is maintained in a flat condition by the rigid work-supporting bed. The ram and the member III will be immediately retracted to relieve the pressure on the work and the member III will then dwell above the shoulder 22 of the punch in the relation shown in Fig. 3. While the concentric low portion 94 of the cam is running past the cam-roll 95, the punch I8 is shifted sidewise into line with the tool 52, where it stands still while an eyelet is being inserted and almost completely clenched by upward movement of the bar 5|, the member I9 being efiective at this stage to prevent the work. from being pushed too high by the ingoing eyelet. For the latter purpose the desired level of the member 19 with respect to the upsetting shoulder 22 may be obtained by preliminary setting of the adjusting screw 89 (Figs. 6 and 7) without affecting the lower limit of movement of that member.

The layers 29 and 2| are omitted from Fig. 3 merely to avoid obscuring the eyelet. In moving from the positions shown in Fig. 3 to those shown in Fig. 4 the eyelet-inserting tool 52 rises slightly, and the member III descends. At this stage the tool 52 is at its highest level, and the member I0 is at its lowest level, the cam-roll 95 (Fig. 1) is on radius 4 of its cam, and the knee of the toggle 28, 29 has moved slightly beyond dead center in its return stroke. The rise of the high part 92 of the cam is therefore utilized to impart the final downward movement to the member I0, and the clenched eyelet is thereby compressed axially, its prongs II are flattened and embedded in the'leather I9, and the latter is also compressed and impressed, this time with cooperation of the tool 52 instead of the punchbed. Incidentally, the layers 20 and 2| are compressed between the prongs 21 and the flange 41 of the eyelet. This second impression of the layer I9 by the member I0 is of longer duration than the first because the high portion 92 of the cam (Fig. l) is extended through a considerable angle thereof. Moreover, the impression made in the outer leather I9 by the member I0 during the punching stage (Fig. 2) is intensified by the second operating stroke of the ram I 00 at the conclusion of the eyelet-clenching stage (Fig. 4).

Referring to Fig. 1, the cam-roll 95 is mounted on an eccentric portion of the stud 98. When the clamping screw 91 is loosened to relax the cooperative clamping portions of the lever 99 the stud may be turned, and such turning will advance or postpone the strokes of the ram I00 to afford the most desirable timing of the individual movement of the member Ill. Once the desired timing adjustment has been made, the length of the movements imparted to the member I0 may be regulated by changing the effective length of the ram I as hereinbefore explained. This latter regulation willbe made to produce the desired compressive effects of the high portions 9| and 92 of the cam shown in Fig. 1, but it does not affect the initial setting of the member ID as adjusted by the screw 80.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. An eyeleting machine comprising an eyeletinserting tool, an eyelet-setting tool having a restricted shoulder formed to enter a lacing hole and upset an invisible eyelet between two layers of work, a work-engaging abutment closely surrounding said setting tool, power-operated mechanism by which said setting tool and said abutment are moved to and from their respective setting positions and both maintained stationary for an interval of time in those positions, poweroperated mechanism by which said eyelet-inserting tool is moved to insert an eyelet during said interval, and power-operated mechanism by which said abutment is moved individually toward said eyelet-inserting tool after its interval of rest to flatten the prongs of the clenched eyelet.

2. An eyeleting machine as defined in claim 1 comprising also adjustable means arranged to establish the position of said abutment during said interval, and other adjustable means by which to regulate the terminal limit of the eyelet-compressing movement of said abutment without affecting the position established by the adjustable means first mentioned.

3. An eyeleting machine as defined in claim 1 comprising also adjustable means arranged to regulate the terminal limit of the eyelet-compressing movement of said abutment, and other adjustable means arranged to regulate the position of said abutment during said interval without aifecting said terminal limit.

4. An eyeleting machine comprising an organized combination including a work-supporting bed, power-operated mechanism arranged to cooperate therewith to punch holes one at a time in the work, power-operated mechanism arranged to feed the work step by step, power- I stand still in one work-engaging position while each eyelet is being inserted and to compress each eyelet and the portion of the work engaged thereby after the eyelet has been clenched but before it is disengaged from said inserting me chanism. I

5. An eyeleting machine comprising a tubular punch having a restricted shoulder formed and arranged to upset and clench an eyelet between two layers of a work-piece, a punch-bed, poweroperated means arranged to insert an eyelet adjacent to said punch-bed, power-operated mechanism arranged to impart punching movement to said punch, power-operated mechanism arranged to impart work-feeding movement to said punch, a work-engaging abutment surrounding 7 said punch and arranged to travel therewith in the punching movements and the work-feeding movements thereof, and power-operated mechanism arranged to impart individual work-compressing movement to said abutment while it is in register with said punch-bed.

6. An eyeleting machine comprising a tubular punch having a restricted shoulder formed and arranged to upset and clench an eyelet between two layers of a work-piece, a punchbed, poweroperated means arranged to insert an eyelet adjacent to said punch-bed, power-operated mechanism arranged to impart punching movement to said punch, power-operated mechanism arranged to impart work-feedingmovement to said punch, a work-engaging abutment surrounding said punch and arranged to travel therewith in the punching movements and the work-feeding movements thereof, and power-operated mechanism arranged to impart two individual operated mechanism arranged to insert an eye let into the work and clench it with movement against said shoulder of the punch, a work-engaging sleeve arranged to slide on said punchbar, means by which said sleeve is maintained in one work-engaging position while an eyelet is being inserted and clenched, and power-operated mechanism arranged to impart individual work-compressing movement to said sleeve after an ingoing eyelet has been clenched but before it is released by said eyelet-inserting mechanism.

8. An eyeleting machine comprising a punchbed, power-operated punching mechanism including a hollow punch having a restricted shoulder formed and arranged to pass through a layer of the work to upset and clench an eyelet between two layers of the work, power-operated mechanism arranged to impart relative sidewise movement of said punch and said punch-bed to and from a cooperative relationship, power-operated mechanism arranged to cooperate with said punch brace the work against the thrust of an ingoing eyelet, and mechanism arranged to shift said abutment individually to compress the eyelet engaging area of the work against said eyeletinser'ting mechanism and thereby flatten the prongs of the clenched eyelet in that area.

} 9. An eyeleting machine comprising a worksupporting bed, power-operated punching mechanism including a punch-bar and a tubular punch carried thereby, said punch having a restricted shoulder formed and arranged to upset and clench an eyelet between two layers of a work-piece, power-operated mechanism arranged to feed the work step by step, power-operated mechanism arranged to insert eyelets successively into the work and clench them against said shoulder, a work-engaging sleeve carried by and surrounding said punch-bar to brace the work against the thrust of an ingoing eyelet, and

with and a bar by which the punch is carried,

said punch having a restricted setting shoulder formed and arranged to spread the prongs of an ingoing eyelet between two layers of a workpiece, power-operated mechanism arranged to insert eyelets successively into the work in cooperation with said setting shoulder, a work-engaging abutment surrounding said punch, a carrier for said abutment, and adjusting means by which said carrier may be adjusted to locate said abutment with respect to said shoulder, said abutment and said carrier having cooperative coupling portions formed to be coupled with telescopic movement without disturbing said adjusting means.

11. An eyeleting machine as defined in claim 10 in which said coupling portions include resilient means arranged to maintain coupled relationship of the abutment and its said carrier.

12. An eyeleting machine comprising a tubular punch having a restricted shoulder formed and arranged to upset and clench an eyelet between two layers of a work-piece, a punch-bed, poweroperated means arranged to insert an eyelet adjacent to said punch-bed, power-operated mechanism arranged to impart punching movement to said punch, power-operated mechanism arranged to impart work-feeding movement to ing sleeve telescopically related to said punchbar, a lever carried by said punch-bar and ar to insert an eyelet into the work and clench it against said shoulden-ah abutment arranged to ated means arranged to impart operating movements to said lever.

14. An eyeleting machine comprisinga Worksupporting bed, power-operated punching mechanism including a punch-bar and a tubular punch carried thereby and provided with a shoulder arranged to upset and clench an eyelet, a power-operated mechanism arranged to insert an eyelet against said shoulder, a work-compressingsleeve telescopically related to said punchbar, a power-operated mechanism including a reciprocatory ram arranged in a fixed bearing, and means carried by said punch-bar to communicate operating movements from said ram to said sleeve.

15. An eyeleting machine comprising a worksupporting bed, power-operated'punching mechanism including a punch-bar and a tubular punch carried thereby and provided with a shoulder arranged to upset and clench an eyelet, a poweroperated mechanism arranged to insert an eyelet against said shoulder, a, work-compressing sleeve telescopically related to said punch-bar,

and mechanism including a rotary power-driven cam arranged to impart successive work-compressing movements to said sleeve in each cycle of operations, one before and one after an eyelet is inserted.

16. An eyeleting machine comprising a worksupporting bed, power-operated punching mechanism including a punch-bar and a tubular punch carried thereby and provided with a shoulder arranged to upset and clench an eyelet, a poweroperated mechanism arranged to insert an eyelet against said shoulder, a work-compressing sleeve telescopically related to said punch-bar, poweroperated mechanism including a reciprocatory ram arranged on a fixed axis, and a lever carried by said punch-bar to transmit operating movements from said'ram to said sleeve, said lever having a surface arranged to receive impacts from an end of the ram.

ranged 'tooperate said sleeve, and power-oper- '-1'7'. Aneyeleting machine comprising a punchbdj poweroperatedj'mechanism arranged to insert an eyelet into a lacing hole, power-operated mechanism arranged to cooperate successively with said punch-bedand with said eyelet-inserting-mechanism to punch a lacing" hole in a workpiece and to clench aneyelet insertedtherein, and power-operated" means arranged to form an ornamental impression in the work surrounding the lacing hole. g

18. An eyeleting machine comprising apunchbed, power-operated mechanism arranged'toinsert an eyelet into a lacing hole, power-operated mechanism arranged to cooperate successively with said punch-bed andwith said eyelet-inserting mechanism to punch a lacing hole in a workpiece and to clench an eyelet inserted therein, and means arranged to brace the work-piece against the thrust of an ingoing eyelet and thereafter to cooperate with said eyelet-inserting mechanism to form an ornamental impression in thework surrounding the lacing hole.

19. An eyeleting machine comprising a punchbed, power-operated mechanism arranged to insert an eyelet into a lacing hole, a punch having a restricted upsetting shoulder formed and arranged to pass through one layer of a punched work-piece and spread the prongs of an eyelet between two layersthereof, power-driven mechanism by which said punch is caused to cooperate successively with said punch-bed and said eyelet-inserting mechanism first to punch a lacinghole in a work-piece and thereafter to upset an ingoing eyelet, an abutment arranged to brace the eyelet-engaging area of said layer against the thrust of an ingoing eyelet until the prongs of the latter have been spread, and power-operated mechanism arranged to move said abutment thereafter from its bracing position toward the punching end of said punch to flatten the prongs of the eyelet with pressure against said eyeletinserting mechanism.

SYLVESTER L. GOOKIN.

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