US2607917A - Fastener inserting machine - Google Patents

Description

Aug. 26, 1952 c,- l.. KNoTT 2,607,917 FASTNER INSERHNG MACHINE Filed Apil 15. 1949 4 Sheets-Sheet 1 3 aid@ L. Km#

Inventar" Aug.26, 1952 v c. l.. KNoTT FASTENER INSERTING MACHINE' 4 Sheets-Shee't-Z.

Filed April 415, 1949 Aug. 26, 1952 c. KNoTT l 2,607,917

FASTENER INSERTING MACHINE Filed April 13, 1949v 4 Sheets-Sheet 3 Inventor' Cqde L. Kno

Aug. 26, 1952 c. KNoTT FASTENER INSERTING'MACHINE 4 Sheets-SheetA 4 IIL I l I i l x l l I II Filed April l5, 1949 [n1/en for Patented Aug. 26, 1952 UNITED STATES PATENT* 'OFFICE'` FASTENER INSERTING MACHINE Clyde L. Knott, Beverly, Mass., assignor to United Shoe Machinery Corporation, Flemington, N. J., a corporation of New Jersey Application April 13, 1949, Serial No. 87,218

14 Claims.

This invention relates to fastening inserting.

machines, and is illustrated herein as embodied in a fastening inserting machine of the type disclosed in United States Letters Patent No. 2,420,290, issued May 13, 1947, on an application filed in the name of A. D. Willhauck. The fastening inserting machine disclosed in the Willhauck patent is a heel seat lasting machine the general construction and operation of which is disclosed in United States Letters Patent No. 2,059,241, issued November 3, 1936, on an application led in the name of J. C. Jorgensen.

It is a purpose of this invention to provide an improved fastening inserting machine of the type referred to, particularly to provide a machine more simplified and dependable in construction and operation as well as more readily adapted to operation upon different work thicknesses requiring fastenings of different lengths.

The illustrated machine, the same as the machine disclosed in the above-mentioned Willhauck patent, is provided with a set of tools which act alternately as awls and drivers, the tools when acting as awls being operated to make a series of holes in the work and thereafter when acting as drivers to insert fastenings into these holes. Thus the tools are operated twice in one cycle.

It is a feature of this invention to control the lengths of successive strokes imparted to the tools in accordance with the work thickness. More specifically, there is provided a movable stop, the position of which, with relation to an abutment carried by the tool operating mechanism, is adjustably determined in accordance with the work thickness, means being provided for so moving the stop that the first stroke of the tools when they act as awls is longer than the second stroke of the tools when they act as drivers. More specifically, the dierent lengths of the two strokes imparted to the tools in one cycle of operation are so determined that when the tools act as awls they penetrate the entire thickness of the work to provide holes therein, and when the tools act as drivers their operative stroke is shortened a distance corresponding to the work thickness or the lengths of the fastenings to be inserted into the previously made holes.

In accordance with another feature of the invention the movable stop is operated and controlled by means connecting this stop with the wiper operating mechanism with which machines of the above-identified type are provided. In particular, the arrangement is such that the movement of the stop to determine the lengths of the strokes imparted to the tools in one cycle of operation is controlled by the wiper closing mechanism, that is, the mechanism which causes the two wipers to swing about a common axis toward each other to wipe the marginal portion of the shoe upper over the shoe bottom and into abutting relation with the shoe bottom member, usually the insole.

These and other features of the invention will now be described in detail in connection with the accompanying drawings and will be pointed out in the appended claims.

In the drawings,

Fig. 1 is a front elevation, partly in section, of the upper portion of a heel seat lasting machine embodying features of the present invention;

Fig. 2 is a right-hand side elevation of-various mechanisms for actuating and controlling the operating instrumentalities of the machine, a lower portion of the machine being shown as broken away and oriented in elevation With respect to the rest of the machine;

Fig. 3 is a section along the line III-III of Fig. 1;

Fig. 4 is a section along the line IV-IV of Fig. 1; y

Fig. 5 is alsection along the line V-V of Fig. 1;

Fig. Gis a section along the line VI-VI of Fig.- l

' of Fig. 1.

Since the purpose as well as the general construction and operation vof the heel seat lasting machine herein shown is, in substance, the same as that described in the above-identified Letters Patent, only such portions of the illustrated machine as it is necessary to refer to for a complete understanding of the present invention will be herein described in detail. Machines of the illustratedY type are designed especially for shaping, a shoe upper about the heel end of a last and accordingly these machines include wipers for wiping the marginal portion of the upper inwardly over a sole member on the last bottom and, furthermore, such machines include means for driving a plurality of fastenings to secure the overwiped marginal portion of the upper in lasted relation to the sole member. For supporting the shoe and last, there is provided a jack (not shown), the jack being mounted for forward and rearward swinging movement to present the shoe to the operating instrumentalities of the machine or to move the shoe out of the machine after the completion of the heel seat lasting operation thereon. The jack is preferably controlled by a treadle (not shown) by which the operator may raise it after swinging it rearwardly to carry the shoe into engagement with a heel band (not shown) and to bring the heel seat face of the shoe into contact with shoe positioning means (not shown).

For wiping the marginal portion of the upper inwardly over the sole member about the heel end of the last the illustrated machine isprovided with two wipers l (Figs. 1 and 8) which are arranged for rectilinear'forward and 'rearward movement in the machine as Well as for inward or outward swinging movement toward or away from each other about a common axis :r (Fig. 8). In the power operation of the niachine, the wipers I are advanced lengthwise ofthe supported shoe and are also swung toward each otherfor closed in automatically Adetermined time relation by mechanism to be described. Each wiper HJ isvsecured to the bottom face of a wiperY carrier l2 at the inner edge thereof. Rectilinear forward and rearward motions as well as 'swinging motions abou-t'the axis as are imparted to the two wiper carriers I2 for operating the wipers lil accordingly. To control these swinging motions, there are provided circular guideways rvHi in a slide 4H5 which is movable forwardly and rearwardly in the machine in a rectilinear path, the guideways lvl being engaged by guide tongues ii) provided on the lower faces of the.wiper'carriers` I '2 at the outer edges thereof. The guideways ill and guide tongues i8 are curved about the axis :r as a center and, accordingly, each wiper carrier l2 with the corresponding .wiper 'lll supported thereon maybe 'swung aboutfthe axis .t by movement with relation t0 thev slide TS. Each wiper carrier I`2 may also be moved 'forwardly or rearwardly 'in the machine in a rectilinear path by movement of the supporting slide i6 in these directions.

For controlling the movements of the slide I6 forwardly or rearwardly in the machine there are provided guideways '20 in the lmachine frame 22, in whichl guideways the slide IS is received. As'hasbeen pointed out, yin the wiping'operat'ion the wipers il] are advanced in a rectilinear path' forwardly of the machine and are closed o-r moved toward each other in time relation to that advancing movement. This is effected by advancing the slide I6 in its guideways 28 and imparting swinging movements to the wiper carriers l2toward Aeach other and with relation to the slide 16. There is a vsingle advancing and closing movement of the wipers in one cycle of operation.

For advancing or retracting the slide i6' a rearwardextension 24 thereof (Fig. 8) carries a cam roll 26fwh`ich engages a cani track'28 (Fig.l 2) provided in thefront end of a cam barrel Sil.v The cam barrel 30 is secured on a power-driven shaft `32 rotatably mounted :in the machine frame 22.

For swinging the wiper carriers l2 and corresponding wipers Ij about the axis .reach wiper carrier i2 has pivotally 'connected theretov a link 34 (Fig. 8) extending rearwardly therefrom and pivotally connected at its rear end to asra'ck bar 36 which is slidable in the machine rframe in directions forwardly and rearwardly of 'themachine. Inn, meshing `engagement with the two rack bars BGaregear segments'38 mounted to swing about x'ed pivot studs 4B and integral with opposite gear segments 42 that mesh with teeth provided on the opposite sides of a rack slide lll?. mounted in the machine frame for movement forwardly and rearwardly of the machine. The rack slide 42 carries on it a cam roll d5 which engages a cam track l5 (Fig. 2) provided in the rear portion of the previously mentioned cam barrel 3i).

The above-mentioned mechanism for inserting fastenings, in the illustrated example, is adapted to insert into the work 'ber pegs which are severed from strands of fiber fastening material that are intermittently fed into the peg forming `and inserting mechanism. No ber strand feeding mechanism is illustrated herein since it is not a part of the present invention, but for a full disclosure of such a mechanism reference may be had to an application for Letters Patent of the United States Serial No. 738,095, filed March 2,9, 1947, in my name, upon which Patent No. 2,510,234 was granted on June 6, 1950. As fully disclosed in the aforementioned Willhauck patent the ber pegs are intermittently severed in a gang from a series of strands of fiber fastening material and are then presented in driving position by being delivered to vertical guide passages provided in upstanding flanges 50 (Figs'. 1 and 8) at the inner or wiping edges of the wipers l0. These wiping edges of the wipers, in the closed position of the wipers, make "a U-shaped outline, as seen in the plan, in con formity to the heel seat portion of the shoe which is being operated upon. The pegs, after they have been transferred to the just-mentioned passages in the anges 50 of the wipers are in'- serted into the heel seat portion of the shoe by a gang of vertically movable tools 52 (Fig. y1). The tools are arranged in two groups of arcuate rows, one group lbeing provided for each wiper l0 and associated parts. The tools 52 have a dual Vfunction in that they act alternately as awls "to make holes in the heel Vseat portio-n of the shoe and as drivers to insert the previously severed and transferred ber pegs into these holes. Accordingly, two power strokes are given to the tools 52 in each cycle of operations. f

In the following, only the parts of the fast-ening forming and driving mechanism associated with Aone of the two wipers It will be described in detail, it being understood that another assembly off corresponding elements is associated with the other wiper and arranged in 'symmetrical relation to the assembly of elements now to be described.

'Secured tothe wiper Vcarrner l2 and located above and in spaced relation to the flange 50 of the wiper l0 is a tool guiding block 54 (Figs. 1 and 6) having vertical .passages arranged in' an arcuate row for guiding the vertically moving tools '52 as Vwell a's having spaced from these passages 'an arcuate row of bores which 'serve to guide the strands of fastening material in their downward travel into fastening severing position. Alsosecured to the wiper carrier I2 and arranged in contiguous relation to the tool guiding block 54 is an upstanding bracket 56 (Figs. 1 vand 5). To the upper portion of the bracket is 'secured a block 58, the block having a curved slo-tSil (Fig. 4) through which freely extend 'exible tubes 62 which guide the iiber strands d-ownwardly. VProvided in the block 58 is, furthermore, arvertical bore in which 'isreceived a'vertic'ally reciprocating tool operating bar' E54 whichispreyent'ed from rotation about itsV longitudinal vaxis by' asp-line (not shown). The' inner ends of the two blocks 58 overlapv each other andare. vertically bored to receive a fulcrum pin 66, the vertical axis of which coincides with the previously mentioned axis x. Removably secured to the lower end of each bar 64 is an arc-shaped row of tools 52, the lower `ends of which extend into the corresponding tool guiding block 54 even when the bars assume theiruppermost positions.

Since the tools 52 and the two tool operating bars 64 are supported in the two brackets 516 vand since the brackets 56 are secured to the wiper carriers I2 and thus participate in the forward and rearward as well as opening and closing movements of the wiper carriers I2, a sliding connection is provided between the upper ends of the bars 64 and the means for reciprocating the bars vertically. More specifically, the bars 64 are provided near their upper extremities with annular horizontal grooves forming rounded heads on the bars. The bars are actuated by means of lpower operated links 68 (Fig. l) which are connected to the bars as follows: Pivotally secured to the lower extremity of each of the two links 68 is a block 'l0 provided with a horizontal T-shaped slot in which the rounded head of the -bar 64 is received. Retaining plates 12 secured to the links 68 serve to hold the blocks 10 in position. Thus the bars 64 may participate in the movements of the wiper carriers I2 lwithout disturbing their driving connections with the links A The inner and lower portions of the brackets 55 are provided with vertical bores arranged in arcuate rows for the passage therethrough of the strands of fiber fastening material. These bores are vertically alined with the above-mentioned strand guiding bores provided in the tool guiding blocks 54. Secured to each bracket 56, at the upper ends of the strand guiding bores, is a perforated strand tube plate 14 (Figs. 1 and 5) which receives thelower ends of the strand guiding tubes 62. Provided on the lower end of each tool operating bar 64 is a foot block 16 (Fig. 5) and each foot block has in its lower face an arcuate guideway in which the heads of the tools 52 are removably secured.

For receiving the lower ends of the fiber fastening strands during each feed movement thereof, and for severing fibre pegs from these strands, there are .provided two shear blocks 18 (Figs. 1, 6 and 7) which are mounted for horizontal movement in guideways 80 provided between the tool guiding blocks 54 and the wiper carriers I2. The shear blocks 18 are positively reciprocated between two fixed positions and are provided with an arcuate row of vertical bores. In the retracted position of each shear block 18, as illustrated in Fig. 1, the vertical bores therein are in alinement with the above-mentioned strand guiding bores in the tool guiding block 54 so that on downward movement of the ber strands the lower ends of the strands are inserted to a predetermined extent into the vertical bores of the shear blocks 18. After the insertion of the strands into the blocks 18 the blocks are advanced inwardly or toward each other to sever the lower portions of the liber strands therefrom to form pegs. The advancing movement of each shear block 8 is terminated by stops (not shown) when the vertical bores therein containing the fiber pegs are in alinement with the vertical guide passages in the anges 50 of the wipers I0 as well as with the vertical tool guiding passages in the corresponding tool guiding blocks 54. The pegs are now located in the line of drive of the tools 52 whichA arein their retracted upper position above the` pegs'.

. For the purpose of reciprocating each shear block positively, power operated mechanisml is provided. A bell crank lever 82 (Figs. 1,6 and 7 )Y has a downwardly extending arm carrying a pin 84 on which are mounted, at opposite sides of that arm of the bell crank lever 82, fulcrum blocks 86. These blocks 86 vengage a transverse groove 88 provided in the top face of the shear block 'I8 and also are located between spaced upstanding lugs provided on the shear block .at opposite sides of the groove 88. The bell. crank lever 82 is pivotally secured by a pin 90A (Fig. 6) to a lug secured to the bracket'56. Two parallel upwardly extending arms of the bell crank lever 82 carry a pin 92 on which is rotatablymounted a pivot block 94 arranged between the arms; of the bell crank lever 82 and located in a C-shaped piece 96v (Fig. 1) integral with the lower end of a vertically reciprocating plunger 98. The plunger is guided in a sleeve which is part of the bracket 56 and, accordingly, the plunger participates in the above-,referred-to movements of the wiper carrier .12. Thus, it is necessaryto provide also.

a sliding connection between thek upper end of` the plunger 58 and the means for vertically reciprocating the plunger. There is provided an annular horizontal slot near the upper end vof each plunger forming a rounded head on the upper end of the plunger, which head is received in a horizontal T-sh'aped guideway or slot |00 (Fig. 3)-,provided in the underface of an arm |02. The arm |02 is pivotally secured byal pivot stud |04 to afoot plate |06 which in turn is rigidly secured to the lower end of a vertically reciprocated rod |08. The outer end of the foot plate |06 is shaped to form a guiding ridge ||0 along which an upstanding and overhanging nange ||2 (Fig. 2) provided on the arm |02 may move Thus, in spite of the participation of each plunger 88 in the wiper movements, driving connection of each plunger with its respective actuating rod |08 is maintained, it being Vunderstood that the rods |08 are arranged in the machine for vertical reciprocation only. Y

For the purpose of reciprocating the rods |08 in themachine frame, their upper ends are pivotally secured to the forked. front end of a twoarmed lever I I4 (Fig. 2) which isl pivotally secured to the machine frame at ||6. The rear end of the lever |I4 is pivotally connected by a link I I8 to a slide |20 which is mounted for vertical reciprocation in the machine frame. The lower end of the slide |20 carries a cam roll |22 which is engaged in a cam ygroove provided in one face of a cam disk |24 on the shaft 32, the cam disk also functioning as a power transmitting gear. Thus the lever ||4 is rocked by the cam I 24 in time relation to the operation of the operating instrumentalities of the machine to advance and retract the shear blocks 18 with the results described.

In order to actuate the tools 52 twice in one cycle of operations, rst with a long stroke, then with a shortened stroke, as previously explained,

the above-described links 68 are pivotally secured to the front end of a lever |26 (Fig. 2) which passes through a vertically elongated aperture in a plunger |28 mounted for vertical reciprocation in the machine frame. A pin |30 pivotally secures the lever |26 to the plunger |26. The rear end .of the lever |26 is provided with a horizontal slot |32 open at its rear end and engaging a flattened portion of a ,pivot shaft |34 rotatably mounted in the machine frame. Accordingly, the lever |26 is swung about the axis of the Vshaft |34 on vertical reciprocation of the plunger |20. The vslot |32 is provided for the purpose of permitting the lever |26 to move slightly with relation to the shaft |34 in view of the fact that the pivot pin |30 of the .lever |26 is constrained to move in a vertical path only. The plunger |28 is elevated by a lift lcam |36 Asecured to the front end of the shaft 32 and engaging a roll |38 rotatably mounted on the lower extremity of the plunger |28. Secured to the upper end of the plunger |28 is a casing |40 (Fig. l) open'at its top in which is housed a heavy spring |42 the lower end of which engages the bottom of the casing yl'iltl and thefupper end of which is in engagement with av bolt |44 adjustably secured in the machine frame. vIt will be seen, therefore, that von elevation of the plunger k|28 by the lift cam |36 the spring |42 is loaded. The coniiguration of the lift cam |36 is indicated in dotted lines in Fig. 1 which shows two drops or lower portions. Thus on rotation of the cam through one complete revolution, corresponding to one cycle of operations, the plunger |20 is twice raised by the cam and is twice permitted to drop under the force of the loaded spring |42. Accordingly, the tool operating plunger |28 is actuated twice in one cycle of operations to impart two operating movements to the tools '52.

As has been stated, the two operating movements imparted to the tools 52 in one cycle of operations are of different lengths. The lengths of the successive tool strokes are controlled by the following mechanism: A movable stop in the form of a sliding wedge |46 (Fig. 2) is mounted for forward and rearward movement in a guide piece |48 secured in the machine frame. The wedge |46 and the guide piece |48 are provided with central clearance holes through which the plunger |28 extends, the hole in the wedge |45 being elongated inthe lengthwise direction of the wedge to enable the wedge to be moved forwardly and rearwardly in the machine with relation to the plunger |28. As illustrated in Fig. 2, the upper face of the wedge is horizontal and only its lower face is inclined with relation to the path of movement of the tool operating plunger |218, this inclined face of the wedge'heing guided by 'a similarly inclined face provided inthe guide piece |148. Securedon the wedge |46 is an annular pad |50, 4or cushomwhich, on downward movement 'of the plunger |28, iS-engaged by a circular abutment provided on the plunger |28 and normally'located above the pad |50. Engagement of the abutment |5| with the pad |50 terminates the downward movement of the plunger' Y|28 and, accordingly, determines thelength of operating movement imparted to the tools 52. Displacement ofthe wedge toward the left or the right of Fig. 2 Varies the heightwise position of the pad |50 and accordingly varies the extent of downward movement'ofthe plunger |28 and thus of the stroke'o'f'the tools 5 2. It will be understood that when the 'tools 52 act as awls, the wedge is ina right-hand position and the padY |50 islowered -to lengthen the first stroke of the tools 52. 'When, thereafter, that is, after the re-elevation ofthe plunger |23 by the lift cam |36-, the tools -52 are to-actl'as drivers, the wedge is displaced `v'to-its leftmost position in Fig. 2f so as to raise the pad |50 Ia predetermined amount andy consequently shorten the next Vdownward movement of the plunger |28 4a predeterminedamount, this'amount'corresponding to the work Vthickness and the length of the peg to 'be inserted. o

The arrangement is suchthat regardless kof the thickness of the work the wedge |46 always occupies'thesame leftmost position in Fig. l21prior to the operation of the to0ls.52 as drivers. In this leftmost position of the :wedge 'the tools 52 are stopped with their lower ends in the plane kof the under-faces of thev wipers, .the wipers 'then rmly engaging the upper face of the work. Thus the tools 52 'drive the pegs Vh'omewith the trailing ends ofthe latter flush with the.A upper surface of the work. Only the first stroke of the tools '52 when they actas awls Vis -varied in accordance with the work thickness to secure a complete penetration of lthe work bythe tools. Of course the'lengths 'of Ythe pegs is also predetermined in accordance.l with the work thickness.

To determine the positions of the wedge |46 between successive downward movements vofthe plunger |28, the rfollowing mechanism is provided. The right-hand end ofthe wedge 1l6l(as viewed in Fig. 2) is pivotally connected by `a link |52 to the free end of 1an-arm |54 secured'on and depending `from va shaft |56 rotatably/.mounted in 'the machine frame. Secured on the lshaft is also an upwardly extending arm {56 tothe vfree end of which is pivotally secured-theupper end of alink 160. Thelower end 'of the llink is fadjustabie alongv a curved .guideway F62 Vprovided in the upwardly extending curved arm |64 of/a hell crank lever whichis pivotally secured at |66 to the machine frame.A The lowerend of vthelink is held in adjusted position inithefguideway |62 by a conventional binding bolt |10 having-.a T-shaped head at'its inner end whichiis drawn into binding engagement with thel 'T-shaped guideway |62 by a hand wheel |68 on thebolt. The lower arm |72 df'the-bellcrank lever carries a cam roll W4 which is engaged inthe previously mentioned cam groove 568 inrthe cani barrel 230. As will be remembered' the `cam IgrooveftB serves to impart swinging-movement, that is, opening and closing movements, lto the wipers aboutithe axis .rand ashasbeen determined thefconguration of the cam groove 43 is suchthat .in the selected position of the cam roll '|14 inthe cam groove 48 as shown in Fig. V2 itcan serve also to operate the wedgelit intime relation vtolthe oper-ation ofthe operating instrumentalities 'of the machine, particularly the tools 152 and the tool voperating mechanism. vAdjustment of the lower end of the lin1kl|65 ywith relation tothe pivot '|156 ofthe bell 'crank lever-|64, |`|2..along the guidewayl |162 'adjustsf the eiective length: of the .arm |615 Yof theibell crank and, accordingly, varies theertent of movementof the-wedgeMG from its iixedleftmost position-toward the right offlig. 12. The arm .I54'ther'efore vis-'preferably provided withv a scale (not shown) onwhich different workthicknesses are marked so that the operator :ima-y adjust @the lower :end of .the link i60 oppositethe':marking.on the .arm I'Gllcorrespending to the`thic'kness of the-work operated upon. lThe cam track 48 is of -such Iconiigurationlthat .prior to the first operation of' the'tools 52 it Udisplaces 'the' wedge .to `'the right 4of f Fig.i2 a predeterminedanrount, .dependingvon theLsetting .of .the link Ulti),tthuslinsuring axpredeterminedlong vstrcrk'ezoriti-1e:plunger y|28 .and 'accordingly ofzthe tools :'52, andthatprior to the second. actuation of: the tools'i52 itdispl'aces-v the wedge't46 intoiitsleftmost;position in Fig. 2 vto raise the pad into'itsxed uppermostposition,

Y'regardless'.ofthe,settingoof vtherlink |160, thus to shorten the second downward movement of the plunger |28 and, accordingly, Aalways to terminate the second stroke of the tools 52 when their lower ends are in the plane of the under-faces of the wipers.

The reason why the wedge |46 always moves to the same left-hand end position in Fig. 2 irrespective of the setting of the link |60 may be explained as follows: After the actuation of the tools 52 as drivers the cam track 48, due to its configuration, swings the bell-crank lever comprising the arms |64 and |12 `(in a clockwise direction-Fig. 2) into a position in which the center of curvature of the guideway |62 coincides with the axis of the pivotal connection between the arm |58 and the link |60. Thus no matter what position the lower end of the link |60 occupies along the curved guideway |62 the pivotal connection between the arm |58 and the link |60 is always moved to the same position and, accordingly, the wedge |46 is always moved into the same left-hand end position. But on reverse swinging movement of the bell-crank lever |64, |12 (in a counterclockwise direction- Fig. 2) the setting of the link |60 variably determines the extent of movement of the wedge |46 toward the right of Fig. 2, the setting of the link `|60 being so selected that the extent of the movement of the wedge toward the right of Fig. 2 is proportionate to the thickness of the work.

The operation of the machine will now be described. After the shoe, the heel seat portion of which is to be lasted and pegged, has been properly located in the machine and the machine cycle has been initiated the wipers I are first caused to be advanced and to be closed to wipe the marginal portion of the shoe up-per over the sole member. While the wipers remain in their advanced and closed operative positions the tools 52 are given their long stroke in that the first drop of the cam |36 permits the loaded spring |42 to depress the plunger |28 to its lowermost position as determined by the wedge |46. In this case the tools 52 act as awls passing through the vertical guide passages provided in the flanges 50 of the wipers I0 into and through the overwiped marginal portion of the upper as well as through the heel seat portion of the sole member against which the overwiped marginal portion of the upper is held pressed by the wipers I0. The length of this stroke of the tools 52 is so controlled by the adjustable wedge |46 that the tools 52 terminate their punching movement after having completely penetrated the combined thickness of the work parts. Thus an arcshaped row of holes is provided in the heel seat portion of the shoe and the, tools 52 thereafter are withdrawn as a result of the lifting of the plunger |28 by the cam |36. The wipers l0 remain in their closed operative positions. meantime, the strands of fastening material have been fed into the shear blocks 18 and, as a result of the operation of the lever |4 by the cam |24, the shear blocks are then advanced to sever a series of pegs from the strands and to present the pegs in the line of drive of the elevated tools 52. After the re-elevation of the plunger 28 and the tools 52 the wedge |46 is moved to its left-hand end position in Fig. 2 by its actuating mechanism which derives its movement from the wiper closing cam track 46 as described. The movement of the wedge |46 toward the left of Fig. 2 elevates the pad |50 a distance corresponding to the work thickness and to the length of the pegs to be inserted. The second downward movement of the In the t 10 plunger |28 by the loaded spring |42 is then permitted by the second drop of the cam |38 but this second downward movement of the plunger |28 is of shorter extent in view of the previous shifting ofthe wedge |46 and elevation of the pad |50. Accordingly, the tools 52 which now act as drivers are caused to stop with their lower ends in the plane of the under-faces of the wipers and thus in positions which are spaced from the previously reached lowermost positions a distance corresponding to the length of each peg. The tools 52 when acting as drivers move through the vertical bores of the shear blocks 'I8 which bores are then alined with the Vertical path of movement of the tools, the tools engaging the pegs contained in the bores of the shear blocks 'I8 and driving them through the passages in the wiper iianges 50 and inserting them into the work. Sincel the tools 52 when acting as drivers stop with their lower ends located substantially at the level of the upper'surface of the Work the pegs are driven flush into thework. The lower ends of the pegs may becomeupset in meeting the usual metal heel plate on the heel seat portion of the last bottom. The pegs having been inserted into the holes previously made in the work, and thereby securing the upper in lasted relation to the shoe bottom, the tools 52 are re-elevated as a result of the renewed elevation of the plunger |28 by the cam |36. The shear blocks 'I8 are then retracted by their respective actuating mechanisms and also the wipers are opened and withdrawn by the wiper operating mechanism. The machine parts having been returned to their initial position the shoe is released and removed from the machine and the machine is ready for the operation upon the next shoe to be presente Having thus described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a fastening inserting machine, a tool acting alternately as an awl and a driver, tooloperating mechanism, an abutment included in the tool operating mechanism, a movable stop engageably cooperating with the abutment to terminate each operating movement of the tool, means for moving the stop with relation to the 'abutment prior to each operation of the tool and means for so adjusting the stop moving means that the extent of movementl imparted to the stop may be Varied in accordance with the thickness of the work operated upon.

2. In a fastening inserting machine, a tool acting alternately as an awl and a driver, tooloperating mechanism, an abutment included in the tool-operating mechanism, a stop movable between two end positions in each of which it is located in a predetermined operative relation to the abutment to terminate successive strokes of the tool at diiferent levels, means for moving the stop prior to each operation of the tool, and means for adjusting the throw of the stop-moving means in accordance with the thickness of the work operated upon so as to cause the two end positions of the stop to be spaced apart a distance corresponding to the thickness of the work.

3. In a fastening inserting machine, a tool acting alternately as an awl and a driver, tool-operating mechanism, an abutment included in the tool-operating mechanism, a movable stop cooperating with the abutment to terminate the operating movements of the tool, and means for locating the stop in a xed end position prior to the operation of the tool as a driver and for ll' moving the stop, prior to the operation of the tool as an awl, out of that end position a predetermined distance adjustable in accordance with the work thickness. i

4. In a fastening inserting machine, a tool having two strokes in one cycle of operations and acting alternately as an awl and a driver, tooloperating mechanism, an abutment included in the operating mechanism, a stop engageably coperating with the abutment to terminate each operative movement of the tool, means forl positioning the stop to engage the abutment and terminate the rststroke of the tool when the Ytool has fully penetrated the entire thickness of the Work, and means active before the second stroke of the tool to reposition the stop so as to engage the abutment and terminate the second stroke of the tool when the leading end of the tocl is at the top surface of the work.

5. In a fastening inserting machine, a tool acting alternately as an atvi and a driver, tool'- operating mechanism, an abutment included in the operating mechanism, amovable stop cooperating with the abutment when the tool acts as an aWl, movable link and lever mechanism connected to the stop, means for adjusting the throw of the link and lever mechanism in accordance with the thickness of the work operated upon, and power-operated means active immediately prior to the operation of the tool as an aw] to operate the link and lever mechanism so as to move the stop into a predetermined operative relation to the abutment.

6; In a fastening inserting machine, a tool acting alternately as an awl and a driver, tooloperating mechanism, an abutment included in theoperating mechanism, an adjustableV wedge member acting as a stop for the abutment, and means adjustable in accordance with the thickness of the work for moving the wedge member away from the abutment, prior to the operation of the tool as an awl and for moving the. Wedge member toward the abutment prior-"to the operation of the tool as a driver. l

7. In a fastening inserting machine, a tool acting alternately as an awl and a driver, a tool-operating member, an abutment carried by said member, a guide member having a guiding surface inclined with relation to the path of movement of said operating member and abutment,

a Wedge member engaging said surface and movable with relation to said guide member to act as ya stop to terminate the operative movements of the tool at different levels, means for moving the wedge member, and means for adjusting the stroke of said moving means in accordance with the thickness of the work operated upon thereby causing the wedge member to be moved into a selected predetermined-position Withrelation to theV abutment prior to the operation of the tool as an awl.

8. In a fastening inserting machine, a tool, a tool-operating member having two strokes during one cycle of operations, the tool acting as an awl during the rst stroke and as a driver during the second stroke, a movable stop engageable with said member to terminate each of said strokes, means active between successive strokes of said member to adjust the stop in diierent engaging positions with relation to the tool-operating member, thereby varying the lengths of the successive strokes of the tool, and means for initially adjusting the stop-adjusting mea-ns in accordance with the thickness or the work operated upon.v

9. Ina fastening inserting machine, a tool, a tool-operating member having two strokes of diierent lengths during one cycle of operations, the tool acting asr an aWl during the rststroke and as a driver during the second stroke, a stop for the tool-operating member movable to lengthen the Iirst stroke of the tool-operating member, stop-operating mechanism for moving the stop with relation to the tool-operating member to cause the rst stroke of the latter member to be lengthened, and means for adjusting the stroke of the stop-operating mechanism in accordance With the thickness ofthe Work operated upon so as to cause the stop to increase the length of the rst stroke of the tool-operating member a distance corresponding to the thickness of the Work. v

10.V In a fastening inserting machine, a tool', a tool-operating member having two. strokesof different lengths during one cycle of operations, the tool acting as an awl during the rststroke and as a driver during the second stroke, a stop for the tool-operating member movable to lengthen the yi'lrstv stroke of the tool-operating member, stop-operating mechanism for moving the stop with relation to the tool-operating member to cause the-first stroke of the latter member to be lengthened, and means for variably adjusting the stroke of the stop-operating mechanism in accordance with variations in the thickness of the Work so as-'to cause the stop to increase the length of the iirst stroke of the tooloperating member over the length of the second stroke a distance corresponding to the thickness of the Work.

1,1. In a fastening inserting machine, a tool, a tool-operating member having two strokes during one cycle of operations, the tool acting as an awl during the first stroke and as a driver during the second stroke, an abutment secured to the tool-operating member, a movable stop engageably cooperating with the abutment during the rst stroke of the tool-operating member Variably to determine the length of sai'dnrst stroke in accordance with the work thickness, and means for moving the stop with relation to the `abutment immediately prior to the rst stroke of the tool-operating member.

l2. In a fastening inserting machine, a tool acting alternately as an awl and a driver, tooloperating mechanism, an abutment included in the tool-operating mechanism, a movable stop cooperating with the abutment to terminate the operating movements of the tool, and :means for moving the stop with relation to the abutment prior to each operation of the tool, said means including means for adjusting the extent of movement imparted to the stop to correspond to the thickness of the Work operated upon.

13. In a fastening inserting machine, a tool acting alternately as an awl and a driver, a tooloperating member having two strokes toward a work. support during one cycle of operations, a movable stop engageabl'y cooper-ating with a portion of the operating member on each of said strokes for variably limiting the movement of the too-l toward the work support, stop-moving mechanism, retractable means for wiping the work into clamped relation with its support, mechanism for operating said means, Iand connections between said last-mentioned mecha-v nism and the stop-moving mechanism for actuating the latter.

14. In a fastening inserting machine, a tool acting alternately as an awl and a driver, atoo-loperating member having two strokes toward a Work support during one cycle of operations, a movable stop engageably cooperating with a portion of the operating member on each of said strokes for variably lirnitngthe movement of they tool toward the Work support, storni-moving mechanism, means adjustable in accordance with the thickness of the Work operated on for adjusting the throw of the stop-moving mechanism, retractable means for wiping the work into clamped relation with its support, mechanism for operating said means, and connections between said last-mentioned mechanism and thev stop-moving mechanism for actuating the latter.

CLYDE L. KNOTT. 1

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number vName Date 950,693 Goddu Mar. 1, 1910 1,918,274 La Chapelle e-t al. July 18, 1933 2,035,080 La Chapelle Mar. 24, 1936 2,059,241 Jorgensen Nov. 3, 1936 2,214,741 La Chapelle Sept. 17, 1940 2,420,290 Willhauck May 13, 1947

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