US2420290A

US2420290A - Fastening inserting machine

Info

Publication number: US2420290A
Application number: US493742A
Authority: US
Inventors: Augustus D Willhauck
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1943-07-07
Filing date: 1943-07-07
Publication date: 1947-05-13
Anticipated expiration: 1964-05-13

Description

May 13, 1947. A. D. WILLHAUCK V 2,420,290

FASTENING INSERTING MACHINE Filed July 7, 1943 8 Sheets-Sheet 1 Tigl'l May 13, 1947. A. D. WILLHAUCK FASTENING INSERTING MACHINE Filed July 7, 1943 8 Sheets-Sheet 3 iii 2% 254 X58 May 13, 1947.

A. D. WILLHAUCK FASTENING INSERTING MACHINE Filed July 7, 1943 8 Sheets-Sheet 4 May 13, 1947. A. D. WILLHAUCK FASTENING INSERTING MACHINE Filed July 7, 1943 8 Sheets-Sheet 5 May 3, 1947. A. D. WILLHAUCK 2,420,290

FASTENING INSERTING MACHINE Filed July '7, 1943 8 Sheets-Sheet 6' May 13, 1947. A. D. WILLHAUCK FASTENING INSERTING MACHINE Filed July 7, 1943 8 Sheets-Sheet 7 y 1947. A. D. WILLHAUCK 2,420,290

FASTENING INSERT ING MACHINE Filed July 7, 1943 8 Sheets-Sheet 8 //WE/VTU Patented May 13, 1947 FASTENING INSERTING MACHINE Augustus D. Willhauck, Stoneham, Mass, assign or to United Shoe Machinery, (lorpcration, Flemington, N. 3., a corporation of New Jersey Application July '7, 1943, Serial'No. 493,742

17 Claims.

This invention relates to machines for use in themanuiacture of shoesand is illustrated as embodied in an improved fastening inserting machine which constitutes part of a heel-seat lasting machine of the general type disclosed in United States Letters Patent No. 2,214,741, granted September 17, 1940, on an application filed in the name of Fred N. La Chapelle.

As disclosed in the above-mentioned Letters Patent, shoe uppers, which have been shaped to the heelends of lasts and have been inwiped over insoles secured to the bottoms of the lasts, are secured to the insoles by fastenings formed from strips of fiber fastening material and driven through the upper and the insole by tools which operate first as awls to form holes extending through the insole and the overwiped margin of the upper and then as drivers to drive the fastenings into the holes, In order that the shoe upper shall be effectively secured to the insole by fastenings such as referred to above, it is desirable that the lengths of the fastenings as well as the depths of the holes for receiving said fastenings shall be varied in accordance with variations in the combined thickness of the upper and theinsole,

t is an object of the presentinvention to provide an improved heel-seat lasting machine of the type referred to above, by the use of which shoe uppers and insoles of diil'erent combined thicknesses may be quickly and effectively secured together.

l/Vith the foregoing object in View, the, illustrative machine comprises, in combination with an actuating member movable in a fixed path and operatively connected to tools which are movable, together with wipers, lengthwise and laterally of a shoe being operated upon and are also movable first as awls and then as drivers relatively to the wipers, mechanism for varying the starting positions of the tools with relation to the actuating member in accordance with the desired limit (it movement of the tools in one dimotion. In order that the tools shall operate effectively as awls to form holes extending through I initial or primary rest position until the tools,

which are of cylindrical form, have operatedas awls, and is then moved to a secondary rest-position-inwhich it remains until the tools have operated as drivers.

The mechanism for varying the starting positions of the tools with relation to the actuating member, which is illustrated as a spring-pressed plunger-andis twice released for movement in a fixed path under the action of a spring during each cycle of operation of the machine, comprises a crank, said crank being secured to the shear lever and having an elongated groove for receiving a slide collar pivotally mounted upon a coupling pin. The coupling pin, which maybe pivotally connected to the crank in different positions lengthwise of the crank groove; is operatively connected to one endof a driving lever pivoted at its central portion to the plunger, the

other end of the driving lever being connected;

through links to the tools.

When the shear lever is in its primary rest position, movement of the coupling pin into different adjusted positions lengthwise of the groove of the crank causes the driving lever to rock into different positions upon the plunger, thus varying the positions of the tools with relationto the plunger. Since the plunger has a fixed path of travel, it will be apparent that the limit of movement of the tools operating as, aWls in one direction varies in accordance with the setting of the coupling pin lengthwise of the crank groove,

such setting being quickly efiected by the operator when the machine is at rest through the provision of a calibrated scale and index line construction.

When the shear lever is in its secondary rest position, the groove of the crank, which, asaboye stated, is secured .to the shear lever, is so arranged that irrespective of the adjustment ,of'

J'usted positions along the groove of the crank,

thearrangement being such that when the shear lever is in its primary rest position, in which it remains while the machine is at rest and until the tools have completed their operations as awls, the tools during their work penetrating strokes move a predetermined distance below the work engaging faces of the wipers. After the fastening receiving holes have been formed in the work, the shear lever moves to its secondary rest position, thus moving the tools to their neutral starting positions with relation to the plunger. Accordingly, when the shear lever is in its secondary rest position the tools are in their neutral starting positions irrespective of the starting positions of the tools at the beginning of their work penetrating strokes, the arrangement being such that during the strokes of the tools operating as drivers the ends of the tools move to but not substantially beyond the work engaging faces of the wipers, thus insuring that the fastenings are driven flush with the outer face of the inturned margin of the upper.

In order to supply strips of fiber fastening material to the machine, there are provided a pair of feed rolls which are operated during each cycle of operation of the machine by a one-way clutch of the Horton type. The amount of feed of the fiber fastening material per cycle of operation of the machine can be changed as desired by varying the throw of a lever which operates an outer driving sleeve of the clutch. To insure against any tendency of the strip of fiber fastening material to be fed backwards during the retractive movement of the driving sleeve of the above-mentioned clutch, there is provided another clutch which is similar in construction and arrangement to the first-named clutch but has an outer sleeve which is secured to the frame of the machine.

In trying out the wiping action of the machine, for example, it is desirable to render the tools inoperative and to stop the feed of the strips of fiber fastening material. Accordingly, the illustrative machine is provided with means comprising a single control member for retaining the tool operating plunger against movement and for stopping movement of the feed operating clutch.

The various features of the invention will be understood and appreciated from the following detailed description read in connection with the accompanying drawings, in which Fig. l is a side view, partly broken away, of a machine in which the invention is embodied;

Figs. 2 and 3 are vertical sections on line IIII of Fig. 4, showing portions of the heel-seat lasting and fastening inserting mechanism of the machine during two stages of its operation;

Fig. 4 is a horizontal sectional view, partly broken away, the left and right halves of which are taken on lines IVIV and IVa-IVa, respectively, of Fig. 2;

Fig, 5 shows in side elevation portions of the fastening inserting mechanism of the machine;

Fig. 6 is a section on line VIVI of Fig. 5;

Figs. '7 and 8 are enlarged exploded and side views, respectively, illustrating in detail the fastening inserting mechanism;

Fig. 9 is a side View, partly in section, of mechanism for feeding the strips of fiber fastening material to the machine;

Fig.10 is a section on line XX of Fig. 9;

Fig. 11 is an exploded view of portions of mechanism for rendering the fastening inserting mechanism inoperative; and

Fig. 12 is an angular view of the heel-seat portion of a shoe which has been operated upon by the illustrative machine.

The machine herein illustrated is described with reference to shaping shoe upper materials 28 (Figs. 2, 3, 4.- and 12) about the heel end of a last 22, which is mounted upon a jack post 24 (Fig. 1) and to the bottom of which an insole 26 has been tacked, and to securing said materials, which are commonly referred to as an upper, to the insole by fiber fastenings 28 (Figs. 3 and 12). The shoe on the jack 24 is positioned with its heel-seat face 38 arranged slightly above the plane of the bottom faces 32 of Wipers 34, the heel-seat face of the shoe being held by the jack in engagement with a rear work rest 36 (Figs. 2 and 4) and lateral work rests 38, and the rear end of the shoe being held in forced engagement with the rear end of a U-shaped heel band 48.

During the latter part of the shoe positioning operation, the heel band 40 is clamped around the counter portion of the shoe and co-operates with the jack 24 and the work rests 36, 38 in securing the shoe against movement. The work rests 36, 38 are initially engaged by the intumed margin 42 of the upper 20, as shown in Figs. 2 and 4, and during the lasting operation are moved inwardly by the wipers 34 into positions over the exposed insole 26 of the shoe and away from the then inwiped margin 42 of the upper, as shown in Fig. 3.

Since the machine as a Whole, including the shoe positioning mechanism and mechanism for operating the wipers 34, is fully disclosed in the above-mentioned Letters Patent No. 2,214,741, only such parts of said mechanism as are deemed necessary to refer to in disclosing my invention will be hereinafter described.

The Wipers 34 are secured by screws 44 (Figs. 2 and 4) and dowel pins 45 to wiper carriers 46 mounted upon a slide 48 which is movable forwardly and rearwardly along a rectilinear guideway 50 (Fig. 4) of the machine frame 5|. Each of the wiper carriers 46 is guided for arcuate movement on the slide 48 about a vertical axis 52 which, as will appear later, is coincident with the axis of a vertically movable fulcrum pin 54, by the provision of an arcuate tongue 56 fitting in a complementally shaped groove 58 formed in the slide 48, the carrier being confined on the slide by a cover plate 60 secured to the slide by screws 62. The slide 48 is moved lengthwise of a shoe positioned in the machine, to impart advancing and retractive movement to the wipers 34, by a cam path 64 (Fig. 1) which is secured to a main drive shaft 65 and is engaged by a roll 66 carried by a rearward extension of the slide. The wipers 34 are swung toward each other during and in time relation with their advancing movement with the slide through the provision of links 68 (Fig. 4.) which are pivoted at their forward ends to corresponding wiper carriers 46 and at their rear ends to mechanism operatively connected to a roll I0 (Fig. 1) engaging with a cam path 12 secured to the drive shaft 65.

The fiber fastenings 28 which, as will appear later, are formed from strips 14 of fiber fastening material, after being delivered to vertical passages 18 (Figs. 2, 3 and 4) formed in upstand ing arcuate flanges 78 of the wipers 34, are driven by gangs of vertically movable tools 80 into holes 82 (Figs. 3 and 12) previously formed in the upper 20 and the insole 26 by said tools operating as awls.

Secured by screws 84 (Figs. 2 and 4) and the dowel pins 45 to each of the wiper carriers 46 is a tool guiding block 86 and an upstanding bracket 88, the brackets being secured by screws 90 and dowel. pins I2-to corresponding blocks Bdfcrward centralportions 96. of. which overlap. and are provided with bores alined to receive the fulcrum pinl54-.. As above stated, the tongues 56 of the wiper carriers 66 and the grooves 58 of the slide.

118 are centered about the axis 52 of the fulcrum pin 54.; Each of the blocks 94 is provided with an arcuate slot 93, through which flexible conduittubes I66 for receiving the strips is of fiber fastening material pass, and a bore I62 for receiving ashank of a tool carrier or driver bar I64 having secured to its lower end the tools 8% Which are arranged in an arcuate row.

'll he driver bars IB S are mounted for vertical sliding movement in the bores I52 of the blocks 94., through the provision of mechanism hereinafter described, and are held by keys I66 against turning in the blocks. As above explained, after the tools 86 have operated as awls to form the holes 52 in the upper 25 and the insole 26,- they are again operated as drivers to drive the fastenings 28 into the holes. The tools may therefore be referred to as drivers.

The upper ends of the tools 86 at each side of the machine fit in recesses I88 (Fig. 2) formed in an arcuate strip H5 which is T-shaped in cross section and together with an arcuate assembling strip III pinned or otherwise secured to thestrip H5 fits in a complemental slot II2 formed in the lower end of the associated driver bar IG I. The strips II 6 and III are secured against movement in the slot I I2, with the drivers Bil-"arranged in driver passages II I of the tool guiding block 86, by a spring-pressed retaining pin H6 which fits in a bore N8 of the driver bar Ill'and extends into a recess I25 of the strip II I. It will thus be apparent that one or more drivers may be removed from either of the strips I I5, preparatory to replacing said drivers, after lifting a, stud I22, which is secured to the pin H5 and extends into a recess I26 of the driver bar I04, and sliding the strip out of the slot H2.

Each of the driver bars I65 has at its upper end a circumferential groove I26 for receiving bifurcations I25 of a link I36 pivoted through a link I 32 to the forward end of a tool operating lever I34, which may also be referred to as a driving lever. The rear end of the tool operating lever I36 is operatively connected to a shear lever I36 through mechanism which will be described in detail and comprises a link I45. A pin I42 carried by the lower end of the link I IIJ serves as a fulcrum about which the driving lever I34 is rocked, by a spring-pressed plunger I I I to which it is pivoted, to operate the tools 85.

Each" of the upstanding brackets 88 is provided with an arcuate row of passages M5 for receiving lower end portions of the flexible conduits see, such passages being in registration with passages I48 formed in the associated tool guiding block 86. Slidingly mounted in guideways I55 formed between associated tool guiding blocks 86 and wiper carriers 46 are loader or shear blocks I52 each having an arcuate row of passages I56. Each of the loader block I52 is provided with vertical guideways I55 for receiving blocks I55 pivoted upon a pin I59 which is carried by the lower end of a bell-crank lever I66 mounted upon a fulcrum pin I62 secured to the associated bracket 88. A block I6 pivoted upon a pin I 65 carried by a bifurcated rear end portion of each of the bell-crank levers I66 fits in a guideway I6.6...of a forked arm IE8 at the lower end of a vertical plunger III] which is mounted for slid-.

ing movement in..a bore. .IIII-of rthe ,as.sociated bracket 88.

When' the plungers I16. are. depressed, through mechanism which will be described later, they impart through the, bell-crank levers IBILforward sliding movement to. the .loaderblocks I52; causin the strips Id ;of fiber fastening material,

which have previously been fed a predetermined distance into the passages I54 of said blo,cks,-. to

be sheared, thereby forming the. fastenings 28:;

Forward movement of theloader blocks. I52 is continued until the passages I54. arein alinement with the passages. H4 in the tool guiding. block, 86 and the passages I6 in the wipers 36, as shown. in Fig. 3, at which time the loader blocks come to rest, the fastenings 26 being ready fOIEdBliV-r cry to the passages I6 so that they may be later operated upon by the tools 66 operating. asv I drivers.

Interposedbetween a washer I I I on the bracket 88 and a nut I16 threaded onto the upper end. of the plunger H6 is a. spring I'Iflwhich, when.

the machine is at rest, as illustrated in Fig, 2, retains the corresponding loader block I52 in engagement with a surface I36 of the wipercarrier 46, the passages We of the loader block I52 at this time being in alinement with the pas-.

sages on of the tool guiding block 86 for receiving thestrip Id of fiber fastening material, In

order to insure against movement of the nut I76 upon the plunger IIILthere is provided, a lock' nut I82, the nut and the lock nut being so posi-.

tioned that when a rod I86, which will be hereinafter described and operates. the plungers, I76,v

tively, of the shear lever I36 which is secured to a shaft I92 fulcrumed in the machine frame and is pivoted at its rear end, through a link.

I94 (Figs. 1 and 8), to a slide I96 vertically movable in a guideway I98 of the machine frame. The slide I96 carries a roll- 266 engaging a path cam 262 secured to the rear end of the shaft 65, th shape of the path cam being such that after the tools 86 have been reciprocated to form the fastening receiving holes 82 in the upper 26 and the insole 26 the shear lever I36 is swung in a clockwise direction from a primary rest position, shown in full lines (Fig. 8), to a secondary rest position I35a, shown in dash lines, to impart downward movement to. the rods I84.

It will thus be understood, and as fully disclosed in the above-mentioned Letters Patent No. 2,214,741, that prior to depressing the rods I86 each of the plungers III] has moved, together withits associated upstanding bracket 88, in response to the advancing and closing movement of the wipers 34. Accordingly, the operative positions of the plungers I16 vary to a slight extent.

in accordance with the closed positions of the wipers 34 and in order to insure that the plungers shall be engaged by the rods I84 irrespective of the closed setting of the wipers 34, the lower end of each of the rods I86 is enlarged to a considerable extent.

The mechanism foroperating the driving. lever The upper ends I34 to cause the tools 80 to operate first as awls and then as drivers will now be described. As above stated, the lever I34 is pivoted at its central portion to the plunger I44 which is vertically slidable in guideways 206 (Figs. 5, 6 and 8) of the machine frame and the lower end of which carries a roll 208 and a bearing plate 209. The roll 20B is forced against a cam 2I0, which is secured to the drive shaft 65 and has commonly centered cylindrical faces 2I I, 2I3 and lifting faces 2I5, 2 I I, by a coil spring 2 I 2. The spring 2 I2 is housed in a recess 2I4 formed in the upper end of the plunger I44 and has its upper end in engagement with a thimble 2I6 (Fig. 1) threaded into a bracket 2I8 secured by screws 220 to the machine frame.

The cam 2I0 is rotated in a counterclockwise direction, as viewed in Figs. 6 and '7, and when

edges

222, 224 of the same pass the bearing plate 209 the plunger I44 is released and by reason of pressure of the spring 2I2 against it causes the lever I34 to swing downwardly about its fulcrum pin I42, thereby operating the tools 80.

Downward movement of the plunger I44 is limited by a fiber stop 226 (Figs. 1, and 7) which is secured to the machine frame and is engaged by a nut 228 threaded onto the plunger. The nut 228 is initially adjusted on the plunger I 44 in accordance with the desired limit of downward movement of the plunger and is maintained in its adjusted position by a lock nut 230. The stop 226 is so located thatwith the link I40 in a neutral position, shown in dash lines I40a Fig. 8, which position will be referred to later and is the position assumed by the link just prior to and during the time that the tools 80 are operating as drivers, the tools, during downward movement of the plunger I44, move downward until their lower ends are moved into alinement with or, as usually preferred, just below the bottom or work engaging faces 32 of the wipers 34. As will be explained presently, since the plunger I44 has a constant stroke, the link I40 is in a raised fullline position when the tools 80 operate as awls, in order that the starting positions of the tools shall be lower than they are when the link is in its neutral position I40a, thereby insuring that during the fixed downward stroke of the plunger I44 the lower ends of the tools move a predetermined distance below the bottom faces 32 of the wipers 34, such distance being approximately equal to the combined thickness of the upper 20 and the insole 26 of the shoe.

There will now be described mechanism for quickly and efiectively varying, at the will of the operator, the limit of downward movement of the tools 80 operating as awls and for maintaining constant the limit of downward movement of the tools operating as drivers. The limit of downward movement of the tools 80 operated as awls may be varied by moving a slide 232 (Figs. 1, 5,

and '7) into different adjusted positions upon a stroke controlling lever 234, as will appear later, to change the position of the link I40 and therefore the angular starting position of the driving lever I34 upon the plunger I44. Mechanism operatively connecting the stroke controlling lever 234 and the link I40 is so constructed and arranged that when the shear lever I36 has been rotated in a clockwise direction to its dash-line position I36a (Fig. 8) to form the fastenings 28 and to move the loader block I52 into a position in which its passages I54 are in alinement .with passages I6, II4 of the wiper 34 and the tool guiding block 86, respectively, the link I40 is 8 always in its neutral dash-line position l40a so that irrespective of the setting of the slide 232 upon the stroke controlling lever 234 the driving lever I34 is always in the same angular starting position, shown in dash lines I34a (Fig. 8), upon the plunger I44.

As best illustrated in Fig. 7, the upper end of the link I40 is pivoted to a bell-crank lever 236 mounted for rocking movement upon the shaft I92 to which, as above stated, the shear lever I36 is secured. Pivoted to a depending arm of the bell-crank lever 236 is a link 238 having pivoted to its rear end an arm 240 secured by a setscrew 242 to a shaft 244. Also secured to the shaft 244 is a sleeve 246, the sleeve together with the shaft being mounted for rocking movement in bearings of the machine frame. In order that the shear lever I36 may be rocked without engaging the shaft 244 and the sleeve 246, it; is provided with enlarged holes 248, 250.

Formed integral with the sleeve is a crank 252 provided with a groove 254 in which fits a block 256 pivoted upon a fulcrum pin 258 secured by a nut 260 to the rear end of the stroke controlling lever 234. Threaded into the frame of the machine is a bearing pin 262 upon which the stroke controlling lever 234 is pivotally mounted. Secured to and slidingly adjustable upon the stroke controlling lever 234 i the slide 232 which is movable forwardly and rearwardly in a guideway 264 formed by the lever 234 and a cover 266 which is secured to the side of the lever by a screw 266. The cover 266 is provided with a bearing hole 210 for a, pin 212 which has secured to it a pinion 2'I4 meshing with a rack 216 of the slide 232, the outer end of the pin being of hexagonal shape to facilitate rotating the pin and thus moving the slide 232 to a desired adjusted position lengthwise of the guideway 264 for purposes which will appear presently. The slide 232 has a bore 218 for receiving a stud of a coupling pin 280 which has pinned to it a fiat-sided collar 282 shaped and arranged for movement in an elongated slot 284 at the inner face of the stroke controlling lever 234.

Formed integral With the shaft I92 to which the shear lever I36 is secured is a crank 286 having an elongated rectilinear groove 288 in which fits a slide block 290 pivoted upon an inner portion of the coupling pin 280, said inner portion of the coupling pin being short enough to insure that the collar 282 shall engage an opposite face of the crank 286. Threaded onto the outer end of the coupling pin 266 is a nut 292 by the pro vision of which the collar 282 on the pin may be clamped against the slide 232 in order to secure the slide in its adjusted position upon the stroke controlling lever 234. As will appear later, when the machine is at rest and during the time that the tools are operative as awls, the shear lever I36 is in its raised position, shown in full lines Fig. 8, the lengthwise median plane 294 of the rectilinear slot 208 of the crank 296 extending upwardly and forwardly at a slight angle a to the horizontal.

In order quickly and effectively to position the slide 232 in different adjusted positions upon the stroke controllin lever 234 and accordingly the coupling pin 280 in diiierent adjusted positions lengthwise of the groove 288 of the crank 286, the slide is provided with an index line 296 which may be arranged opposite any one of a number of graduations of a calibrated scale 298 on the lever. V/hen the index line 296 on the slide 232 is arranged in alinement with the 0- on the a scal'e 298, the axis of the coupling pin 28B is coincident with the axis of the shaft I92.

poring the downward strokes of the tools 85 operating as drivers, the shear lever its is in its dash-line position 535a, the central lengthwise plane 294 of the crank groove 288 at such time being arranged a horizontal position 294:; and passing through the axis of the bearing pin 252 about which the stroke controlling lever 234 is rocked. It will thus be apparent that when the index line 256 of the slide 232. is set at andthe plunger ltd is in its raised position, the driver operating lever $34 will assume its dashline position is ia on the plunger M l irrespective of whether the shear lever E36 is in its raised full-line position or its dash-line position Nita. With such an adjustment the link and the driving lever it are always in what may be described as neutral positions i iOa, 35m, respectively. Accordingly, the lower ends of the tools during their work penetrating and fastenin driving strokes move to but not substantially beyond the. bottom faces of the wipers 3d.

. When it is desirable for the tools 33 during their downward movement as awls to move 1 s of an inch, for example, below the bottom faces 32 of the wipers 34 in order to penetrate the maxi mum combined thickness of the insole 2G and the overwiped upper 2d, the nut 292 is loosened and the pm 272 is rotated in a counterclockwise direction, as viewed in Fig, 7, until the index line 296 of the slide232 is arranged opposite the 7 on the scale 298 of the stroke controlling lever 234.

When the machine is adjusted for maximum penetration as above described, mechanism hereinafter described, for feeding the strips it of fiber fastening material is correspondingly adjusted to produce fastenings 28 of maximum length.

In moving the slide 232 from O to 7 upon the stroke controlling lever 234, the coupling pin 288 is moved upwardly and forwardly along the groove 238 from a position in axial alinement with the shaft 592 into the position indicated e by full lines in Fig. 8. Such adjustment causes the stroke controlling lever 23 i and the crank 252 to rotate in counterclockwise directions from their horizontal dash-line positions 234a, 252a (Fig. 8) to their full-line positions and, through It will be understood that the work, prior to being operated upon by the tools, has been clamped in the machine through the provision of the above-described mechanism and that the strips i of fiber fastening material have been fed downwardly T76 of inch into corresponding passages 55:?! of the loader block H2 by mechanisin hereinafter desor'bed. After the wipers 3 have been advanced and closed to Wipe the marins of the upper inwardly over the insole 26, the plunger hit is reieased as the edge 222 of the cam 2h: passes the healing plate 269 of the plunger, thus enabling the plunger to be moved downwardly under the action of the spring 252 until arrested by the stop 22%. Downward movement of the plunger causes the driving lever Iii-t to be moved from its full-line position shown in Fig. 8 to its dotted-line position lfi lb, with the result that the lower ends of the tools operating as awls move 1% of an inch below the bottom faces 32 of the wipers 34 to the level indicated by reference numeral 304-, there-by forming the fastening receiving holes 82 in the work, the tools moving into approximate engagement with a heel plate 3% (Figs. 2, 3 and 12) of the last 22. The plunger Hi l is then raised by engagement of the surface 255 of the cam 2m with the roll 2B8 of the plunger its to return the drivin lever I34 to its full-line position shown in Fig. 8. C

After the tools 88 have been raised out of the loader block guideways I53, the shear. lever 136 is rocked from its full-line position (Fig. 8) ,to its dash-line position H-ifid, causingthe rods I84 to depress the plungers lit] and through the crank levers i613 to move the loader blocks [52 inwardly, that is, to the right, as shown in Figs. 2 and 3, to shear the portions of the strips T4 of fiber fastening material extending into the passages i54 of the loader blocks and to transfer such passages and the fastenings 28 housed therein into registration with corresponding passages 16, N4 of the wipers 34 and the tool guiding blocks 86, respectively. Movement of the shear lever I36 to its dash-line position E3511 causes thecen tral lengthwise plane 21-9 3 of the groove 28,8 of the crank 288 to move from itsinclined position to its horizontal position 294a, thus rocking the stroke controlling lever 23s in a clockwise direc} tion about its fixed bearing pin 262 back to its horizontal position 234a and, through the mechanism above described, rocking the driving lever I34 from its full-line position to its dash-line po: sition [3511, the latter position being the same position which the driving lever assumes when the slide 232 is set at 0. I

When the edge 22-4 of the Cam 2! has pass e'd the bearing plate 299 of the plunger l ,4 4, the plunger is again depressed by the spring 212 uhtil its nut 22S engages the stop 226, thus moving the driving lever I34 from its dash line position lfi la to its dash-dot position i350, shownin Fig. 8, and lowering the tools 89, operating as drivers, until their lower ends are moved to or preferably just below the bottom faces 32 of the wipers 34 so as to drive the fastenings 28 into the previously formed holes 82. The plunger 144 is then raised by engagementof the surface 2" of the cam 2H withthe roll 298 of the plunger, the driving lever its being moved back to its dash-line position 53%. Th shear lever 136 is thereafter rocked in a counterclockwise direction, as viewed in Fig. 8, back to its raised fullline position, causing the crank 286 to be moved back to its inclined full-line position and the driving lever iSt to be moved from its clash-line position Itta to its full-line position ready for the next cycle of operation of the machine. 1 V n e In checking the action of the wipers iii, for example, it is desirable to run the machine without driving the fastenings 28. Accordingly, there is provided a lock pin 3% (Figs. 6 and 11) which is mounted for sliding movement in a bore 303 of the machine frame 5i and may be released to enter a recess 356 (Fig. 6) in the plunger l M for the purpose of retaining said plunger in its raised position. A reduced shank 312 of the lock pin 386 extends through a bore 3H4 of a pin'support Sis wcured by a setscrew 3l8qto the fram'epf the machine. The lock pin 396 is constantly urged to the right as viewed in Figs. 6 and ll by a spring 326 interposed between the support 3L6 and a shoulder of the lock pin, and mounted on the rear end of the reduced shank ,3l2 of the pin is a hand knob 322 provided with deep and

shallow slots

324, 326 which may be selectively brought into registration with a lug 328 on the fixed pin support 316. When the deep slot 324 of the hand knob 322 is in registration with the lug 328 of the support 3I6, the pin 306 extends into the recess 3|0 of the plunger I44 and holds the same in its raised idle position. When the shallow slot 326 of the hand knob 322 is in registration with the lug 328 of the pin support 3I6, the pin 308 is in its withdrawn inoperative position, shown in Fig. 6, and has no effect on the movement of the plunger I44.

The strips 14 of fiber fastenin material are fed a predetermined distance into the passages I54 of the loader blocks I52 during the first part of each cycle of operation of the machine, by a pair of feed rolls 338, 332, the roll 330 being secured to a shaft 334 which is mounted for rotation in a bracket 336 secured by screws 338 to the frame of the machine and which has secured to its left end, as viewed from the front of the machine, a driven inner sleeve 340 of a one-way clutch 346 of the Horton type. The roll 330 is preferably made of steel and is provided with circumferential grooves 343 in which the respective strips 14 of fiber fastening material are pressed by the roll 332, which is made of rubber or other yieldable material and is secured to a shaft 358 rotatable in a carrier 352 hinged at its lower end to the bracket 336. The rubber roll 332 is driven at approximately the same peripheral speed as the steel roll by the provision of intermeshing gear 35I, 353 (Fig. 9) which are secured to the

shafts

334 and 350, respectively.

The strips 14 of fiber fastening material are supplied from arcuate guides 354 (Fig. 1) from reels (not shown) and extend downwardly between the rolls 330, 332 (Figs. 9 and 10) and into the conduit tubes I (Fig. 2) through which they are fed into the passages I54 of the loader blocks I52.

The roll carrier 352 is held in its operative position, shown in Fig. 9, by a thumb nut 356 threaded onto a coupling pin 358 which is hinged at its rear end to the upper end of the bracket 336 and is normally arranged in a slot 360 formed in the upper end of the carrier. The thumb nut 356 is forced against a face 362 of the carrier with the desired amount of pressure necessary to cause the rubber roll 332 to force the strips 14 of fiber fastening material into the circumferential grooves 348 of the rigid roll 330. The rubber roll 332 may be readily swung away from the roll 330, preparatory to supply'new strips 14 of fiber fastening material to the machine, for example, by backing away the thumb nut 356 and, after raising the pin 358, swinging the carrier 352 to its dropped position, shown in dash lines Fig.9.

The roll 338 is fed step by step by the Horton clutch 346, which is of well-known construction and need not be described in detail herein. Formed integral with a driving outer sleeve 364 of the Horton clutch 346 is an arm 366 pivoted to a connecting rod 368 the rear end of which is mounted upon a collar 310 (Fig. carried by a threaded coupling pin 312. The head of the coupling pin 312 is arranged in an upstanding arcuate groove 314 of T-shaped cross section formed in a lever 316 secured by a pin 318 to a shaft 380 which is mounted in a bracket 382 of the machine frame and to which a crank arm 384 is secured.

In order to insure against any back feed of 12 the rolls'330, 332, there is provided another oneway clutch 385 of the Horton type an inner sleeve 381 of which is secured to the shaft 334 and during the retractive movement of the arm 366 is locked to an outer sleeve 389 secured to the bracket 336.

The coupling pin 312 may be secured in different positions along the arcuate groove 314; of the lever 316 by the provision of a binding nut; 386 which is threaded onto the coupling pin 312 and is arranged to force the collar 310 againstthe lever 316 and thus to pull the head of the:

- pin against undercut faces of the groove 314.

The crank arm 384 is pivoted to a rod 388 the: rear end of which is threaded into a yoke 390 (Fig. 1) having a bore 392 for receiving a rod. 394 pivoted at its rear end to a bell-crank le-- ver 396 mounted upon a fulcrum pin 398 sup-- ported upon an upstanding bracket of the ma-- chine frame 5!. Threaded onto the forward end. of the rod 394 is a nut 400 and interposed between a collar 402 pinned to the rod and the: rear end of the yoke 390 is a spring 404 serving; normally to hold the nut 400 against a face 406 of the yoke 300. The bell-crank lever 336 is: operatively connected through a link 408 to a: slide 4I0 movable in a vertical guideway 4l2 of. the machine frame and carrying a roll 4I-4 err-- gaging a path cam MB.

The amount of feed of the strips 14 of fiber fastening material into the passages I54 of the: loader blocks I52 during each cycle of opera-- tion of the machine varies in accordance with the degree of rotation of the

shafts

334, 350 by the crank arm 366 of the one-way clutch 346.. When the axis of the coupling pin 312 is 00-- incident with the axis of the shaft 380 upon which: the lever 316 is mounted, no rocking motion is imparted to the crank arm 366 upon rocking movement of the lever 316. The amount of throw of the crank arm 356 is dependent upon the position of the coupling pin 312 lengthwise of the groove 314 of the lever 316, the farther the pin is located from the axis of the shaft 380 the greater being the feed of the strips 14 into the passage I54 of the loader blocks I52 during the constant arcuate swinging movement of the lever 316.

In order that the operator may quickly and effectively set the coupling pin 312 in different positions upon the lever 316 for different desired feeds, the connecting rod 368 has secured to its rear end a pointer 4! which overlies a calibrated scale 420 secured to the lever 310, the numbers representing 16ths of an inch of feed, it being noted that the maximum feed is 1 6 of an inch, such feed, as above described, being equal to the maximum penetration of the work by the tools operating as awls.

When the tools 80 are rendered inoperative by reason of the lock pin 306 extending into the recess 3I0 of the plunger I44, it is desirable that the feeding of the strips 14 of fiber fastening material shall cease. Accordingly, there is provided mechanism for locking the lever 316 against movement when the plunger I44 is rendered inoperative, such mechanism comprising a collar 422 (Figs. 1, 5 and 6) which is mounted for rocking movement upon the pin support 3I6 and is operatively connected through a link 424 to an arm 426 (Figs. 9 and 10) secured by a split collar-and-screw construction 428 to one end of a shaft 430 journaled in the machine bracket 382. Secured to the other end of the shaft 430 is a stop 432 which, when the arm 'marized, is as follows.

"over the sole.

ane -29o -42 6is :lswung in a counterclockwise direction;as

viewed in Fig. 9, swings 'toa dash-line-position beneath a shoulder 534 of a lug 435 formed integral Withthe crank arm'38 l (Fig. 19).

The collar 422 has secured to it a rod- 338 (Figs. 6 and 11) which is arranged in a notch MS of the hand knob 322, the arrangement beingsuch' that when the knob is pulled and rotated, causing the deep slot 324 to register with the lug 328 of the pin support 356 and thereby rendering the plunger I44 inoperative, the collardZZ-is rotated on the support 356 and through the mechanismabove described causes the stop' l32 'to swing beneath the lug 335, thus rendering the fiber'fastening feeding mechanism inoperative. When the lug 435 is locked against movement by the stop 532, the rod 39d (Fig. 1) during its forward travel compresses the spring 484, the rod sliding idly in the bore 392 of the yoke 398.

The operation of the machine, briefly sum- The operator mounts the shoe upon the jack postZQ, swings said post rearwardly .to carry the heel end of the shoe into the heel band as, and raises the post to force the heel-seat face of the shoe against the work rests '36, 33. With the shoe thus positioned, the operator starts the machine, whereupon the jack 24 is swung farther rearwardly to press the shoe more firmly against the heel'band M), the heel band is closed about the heel end of the shoe, and the heel rests 36, 38 aremoved downwardly to a slight extent to cause the heel band to wipe the shoe upper upwardly toward the edge of the heel seat. During this time'the feed rolls 33B, 332 arerotated in directions to feed suitable lengths of strips "M of fastening material downwardly into the passages I54 of the loader blocks 152. The heel band 40 is then-further closed yieldingly against the sides of the shoe and the jack upon which the'shoe ismounted is forced still more firmly against the heel band,-and the shoe is pressed more firmly against the work rests 3E, 38 through the jack post, after which the wipers 3d are advanced and closed to wipe the margin of the upper materials inwardly As the wipers 34 complete their advancing and closingmovements, the'tool'operating lever l3-5 is released and under the action of the spring 2E2 operates the tools 8% acting .asawls to form in the overwiped margin of the upper and in the sole, fastening receiving holes in alinement with the passages 16 in the wipers, after which the lever 3 3 is raised to move the tools 8a to their raised retracted positions.

The shear lever {35 is then swung clockwise, as viewed in Figs. 1, and '8, to its lowered posi- 'tion, causing the loader block E52 to be moved relatively to the Wipers 34 to sever the portions of the strips M of fastening material fed into the passages E54 and to move said passages into alinement with the tools 853 and the openings in the wipers 3 41.

Thereafter, the driver operating lever its is "again releasedand under the action of the spring 21'! operates the tools 8% which act as drivers to insert -the fastenings into the fastening receiving h'oles formed in the margin of the upper and in the sole, after which the shear lever E and the tools are moved to their raised retracted positions, the shoe is released from pressure of the jack post and the heel band 49, and the work rests 35, 38 and the wipers are moved back to their idle starting positions.

Having described my invention, what I claim as predetermined position.

2. In a fastening inserting machine, a movable tool operative alternately as an awl and as a driver, means for-operating the tool, means for shearing a strip of fastening materialto form a fastening, inechanism movable in response to movement of said shearing means for causing the tool when operating as-a driver to start ata constant predetermined position and for causing the -tool when operating as an awl to start at a position different from said predetermined position,

and means controlled by the operator for initially varying'the starting positions of the tool when operating as-a-drive'r in accordance'with' different thicknesses of 'material to be penetrated by the tool when acting as-an awl.

3. In a fastening'inserting machine, a reciprocatcry tool operativealternately as an awl and as a driver and having a stroke of a constant length, fastening forming means comprising a member movable from onepcsition to another, mechanism which is'operatively connected to the tool and'to said member and is constructed and arranged when said member is in one position to vary the starting position of the tool about to operate as an awl in accordance with the depth to which a work piece is to be penetrated by the tool, said mechanism also being so constructed and arranged that when said member is moved to another position the tool ismoved in another starting position which is constant pective o-f'any variations in the starting poone of the tool when acting asan awl.

In a fastening'inserting machine, a reciprocable tool operative alternately as an awl and as 'a driver andhaving a stroke of a constant length,

for shearing a strip of fastening material. to form a fastening, said means comprising a member movable from a primary to a secondary positionyand mechanism which is operatively connected to the tool and to said member and is constructed and arranged when said member is in said primary position to vary the starting position'of toolin accordance with the desired depth to which. a work piece is to be penetrated by the tool operating as an awl, said mechanism being so constructed and arranged'that when member is moved to said secondary position .tool is moved to the same predetermined starting position irrespective of the setting of the tool at the start of its workpenetrating stroke.

5. In a fastening inserting machine, means, comprising a member which is movable from a to a secondary position. for shearing strips of fastening material to form fastenings, gang of movable tools which have constant strokes and operate alternately as awls and as drivers, and mechanism for o'peratively connecting said means "to the tools for changing whensaid member-is in its primary position the starting positions of the tools in order to vary .thezlimits 'of m'ovmen't of th'e'tools in one direction in accordance with the thickness of a work piece to be penetrated by the tools operating as awls, said mechanism being so constructed and arranged that when said member is moved from its primary to its secondary position it moves the tools to constant positions so that said tools in subsequently moving in said one direction to drive the fastenings will be arrested when their work engaging faces are substantially flush with an outside face of the work piece.

6. In a fastening inserting machine, a tool operative alternately as an awl and as a driver, a block constructed and arranged to form a fastening from a strip of fastening material and to deliver it into a position to be operated upon by the tool, a movable member, said block being movable in response to movement of said mem ber, a plunger, a stop, a lever pivoted to the plunger, connections between the tool and the lever, resilient means for reciprocating said plunger until its movement is limited by said stop, and means responsive to movement of said member for varying the angular position of the lever on the plunger.

7. In a fastening inserting machine, a gang of reciproeable tools operating alternately as awls and as drivers and having strokes of a constant length, fastening forming means comprising a member movable from a primary to a secondary position, and mechanism which is operatively connected to the tools and to said member and is constructed and arranged when said member is in said primary position to vary the starting positions of the tools about to operate as awls in accordance with the depth to which a work piece is to be penetrated by said tools, said mech anism also being so constructed and arranged that when said member is moved to said secondary position the tools are moved to starting positions which are constant irrespective of any variations in the starting positions of the tools about to operate as awls.

8. In a fastening inserting machine, a reciprocatory tool operative alternately as an awl and as a driver, a member which is mounted for reciprocation and is operated in one direction by a spring, a lever pivoted at its central portion to said member, operative connections between one end of the lever and the tool, means connected to the other end of the lever for initially moving it to a predetermined position upon the member, and a cam for releasing said member to enable the spring to operate the member in said one direction thereby to move the tool as an awl in one direction to form a hole in a work piece, said means also being constructed and arranged to rock the lever to another predetermined position upon said member after the hole has been formed preparatory to moving the tool as a driver in said one direction to insert a fastening into the hole.

9. In a fastening inserting machine, a tool operative alternately as an awl and as a driver, a plunger, a spring, a stop, a cam for forcing the plunger into a cooked position against the action of the spring and for releasing the plunger to enable it to be moved under the action of the spring until it is arrested by the stop, a driving lever pivoted to the plunger, means for operatively connecting one end of the driving lever to the tool, a block constructed and arranged to shear a strip of fastening material to form a fastening and to deliver said fastening into a .position to be operated upon by said tool, a shear lever movable to effect movement of said block,

16 and adjustable connections between the shear lever and the other end of the driving lever.

10. In a fastening inserting machine, means, comprising a movable member, for severing a strip of fastening material to form a fastening, a tool, mechanism for reciprocating said tool to cause it to operate first as an awl for forming a hole in a work piece and then as a driver for driving said fastening into the hole, and calibrated connections responsive to movement of said member for causing the limit of reciprocation of the tool in one direction during its hole forming stroke to be more advanced than its limit of movement in said one direction during its driving stroke, said connections being initially adjustable with relation to said member to vary the limit of the tool when operating as an awl in said direction in accordance with the thickness to which the Work piece is to be penetrated by said tool.

11. In a fastening inserting machine, a tool constructed and arranged to operate alternately as an awl and as a driver, a. shear block constructed and arranged first to sever a strip of fastening material to form a fastening and then to transfer said fastening into a. position in which it may be driven into a work piece by the tool, a driving lever operatively connected to the tool, a shear lever operatively connected to said block, a plunger to which the driving lever is pivoted, means for reciprocating the plunger in a fixed path, and mechanism operatively connected to the shear lever for moving the driving lever into different angular positions upon the plunger in accordance with the desired limit of movement in one direction of the tool operating as an awl, said mechanism being so constructed and arranged that when the fastening has been transferred into the position in which it can be operated upon by the tool the driving lever is restored to a predetermined constant neutral position upon the plunger irrespective of its prior position on the plunger.

12. In a fastening inserting machine, a gang of tools operative alternately as awls and. as drivers, shear blocks constructed and arranged to sever strips of fastening material to form fastenings, mechanism, comprising a shear lever, for moving the blocks frompositions in which they receive said fastenin material to positions in which they have transferred the fastenings into positions to be driven into a work piece by the tools, a stop, a plunger, a lever which is pivoted to the plunger and is operatively connected to the tools, a cam operative against the plunger and constructed and arranged to release said plunger at predetermined times, a spring arranged to force the plunger against the stop upon release of the plunger by the cam, and mechanism operatively connecting the shear lever and the tool operating lever for initially rocking the tool operating lever into predetermined angular positions upon the plunger in accordance with the desired limit of movement in one direction of the tools operating as awls, said mechanism being so constructed and arranged that, when the shear lever is moved to transfer said fastenings into positions in which they are operated upon by the driver, the tool operating lever is moved to a different but constant position on the plunger so that during a subsequent stroke of the plunger the tool will drive the fastenings into the work piece flush with the outer surface of the Work piece.

13. In a fastening inserting machine, a gang of tools operative alternately as awls and as drivers,

a pair of shear blocks each having passages, mechanism, comprising a shear lever which is mounted for rocking movement about a fixed axis from a primary position to a secondary position, for forming fastening from strips of fiber fastening material extending into the passages of the shear blocks and for transferring said fastenings into positions in which they are driven into a work piece by the tools, a crank movable with the shear lever and having an elongated straight groove a central lengthwise plane of which passes through the axis about which the shear lever is rocked, a stroke controlling lever mounted for rocking movement about a fixed axis and carrying a coupling fitting in said groove of the crank, a plunger having a constant throw, mechanism comprising a driving lever which is pivoted to the plunger and is operatively connected to the tool, connections between the stroke controlling lever and the driving lever, means for securing the coupling in different adjusted positions lengthwise of the groove of said crank, said crank being so constructed and arranged that the central lengthwise plane of its groove extends to one side of the fixed axis about which the stroke controlling lever is rocked when the shear lever is in its primary position but is coincident with said aXis when the shear lever is in its secondary position, thus insuring that irrespective of the position of the coupling lengthwise of the groove of the crank the stroke controlling lever will be moved back to the same constant position upon the plunger when the shear lever is in its secondary position, and means for operating the plunger.

14. In a fastening inserting machine, a tool operative alternately as an awl and as a driver, a member movable in an actuating fixed path, and mechanism operatively connecting said member and the tool, said mechanism comprising an element which is carried by said member and is movable into different adjusted starting positions upon said member to vary the limit of movement of the tool in one direction in accordance with whether the tool is to operate as an awl or as a driver.

15. In a fastening inserting machine, a tool operative alternately as an awl and as a driver, a stop, means comprising an actuating member movable a constant distance determined by the stop, and a lever which is operatively connected to the tool and is bodily movable with and is initially adjustable upon said member in accordance with the desired limit of movement of the tool.

16. In a fastening inserting machine, means, comprising a movable member, for severing a strip of fastening material to provide a fastening, a tool, mechanism for reciprocating the tool to cause it to operate alternately as an awl to form a hole in a work piece and as a driver to drive said fastening into the hole, and means responsive to movement of said member for causing the limit of reciprocation of the hole forming strokes of the tool in one direction to be varied.

17. In a fastening inserting machine, means for feeding strips of fastening material into a position to be operated upon, means for forming fastenings from said strips, tools operative as awls to form holes in a work piece and as drivers to drive fastenings into said holes, means comprising a spring-actuated plunger for operating said tools, mechanism for rendering said plunger inoperative to prevent movement of the toools, and means operatively connected to said mechanism for stopping the feed of said strips of fastening material.

AUGUSTUS D. WILLHAUCK.

REFERENQES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 358,710 Weeks Mar. 1, 1887 583,046 Goddu Ma 25, 1897 944,275 Phelan Dec. 28, 1931 1,802,900 La Chapelle et a1. Apr. 28, 1931 2,214,741 La Chapelle Sept. 17, 1940 1,847,300 Eastman Mar. 1, 1932 1,294,044 Lay et al.. Feb. 18, 1919 1,388,846 Brock Aug. 30, 1921 1,896,661 Breece Feb. '7, 1933