US1412521A - Machine for making reenforced innersoles - Google Patents

Description

T. F. HART.

MACHINE FOR MAKING REENFORCED INNERSOLES. APPLICATION FILED MAY 29, 1911.

Patented Apr. 11,- 1922.

3 $HEETSSHEET 1- I A -HI n I [nae/175,1-

7 720M F Her? T. F. HART.

MACHINE FOR MAKING REENFORCED INNERSOLES. APPLICATION FILED MAY 29, 1917.

1,4 1 2,521 Patented p 11, 1922.

3 SHEETS-SHEET 2.

Int/enrol: 7710mm; I Ha"!- T. F. HART. MACHINE FOR MAKING HEENFORCED INNERSOLES.

APPLICATION FILED M AY29,1917- Patented Apr. 11, 1922.

3 SHEETS-SHEET 3.

f 22007 11071 77zomas f/ dl UNITED STATES PATENT OFFICE.

THOMAS F. HART, OF LYNN, IVJIASSACI-IUS.rl'lf'lS ASSIGNOR TO HAMEL SHOE MACHIN- EBQY COMPANY, OF LYNN, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

' Application filed m 29,

ment in Machines for Making Reenforced- Innersolesj of whichthe following description, in connection with theaccompanying drawings, is a specification, like characters on the drawings representing like parts in each of the several views.

This invention relates to machines for ap plying the canvas or reinforcing backing to the leather face of the built-up or composite type of innersole for shoes and boots, commonly known as the gem innersole. As is well known this built-up or composite innersole for welt shoes has the canvas backing cemented to the leather layer by suitable adhesive and a prime object of the present invention is to provide improved mechanism for applying and securely uniting the canvas backing totheleather face of the inners ole, such means being operative particularly around the .rib which is turned'up on the leather face of the inne-rsole in accordance with the usual practice. According to the present invention the canvas layer is applied to .the leather layer with a tamping an pressing action exerted at the sides of the welt rib of the innersole by an improved mechanism adapted to insure the even and reliable pressing-1n and union of the canvas .with the leather in the corners of the welt rib, the-canvas being stretched evenly and completely over the entire surface of the innersole. The invention. also comprehends improved means for trimming the edges of the innersole with the canvas backing applied thereto and also improved means for I supporting and guiding the material being operatedon. The foregoing-and other objects and advantages of the invention will more fully appear from the following detailed description, and the distinctive features of novelty will be pointed out in the aprpended claims;

Referr ng to the drawings: Fig. 1 is a side elevation of a machine constructed in accordance with my invention .with the base broken away; I V I Fig. 2 is a fragmentary detail in sectional plan showing the way the innersoleis guided and held for action by the tools;

Fig. 3 is a fragmentary lengthwise verti- Specification of Letters Patent.

MACHINE r012. MAKING rtnnivrononn INNERSOLES.

Patented Apr. 11, 1922.

1917. Serial No. 171,783.

cal section showing the manner of mounting the swinging and endwise moving feeding and applying tool;

Fig. 1 is a front view of the machine;

Fig. 5 is a partial side view on a larger scale showing the immediate working parts;

Fig. 6 is an elevation showing the frame and holder for the cutting knives removed;

Fig. 7 is a partial enlarged front view;

Fig. 8 is a detail section on line 8-8 of Fig. 1;

Fig. 9 is a sectional detail showing a portion of a composite or gem innersole made in accordance with the machine of my invention; and

Fig. 10 is a sectional detail on line 10-10 of Fig. 6.

The base and frame work of the machine are indicated at 1 with upright extensions 2, 2 equippedwith bearings for a horizontal driving shaft 3 fitted with usual driving pulleys l. At the front of the frame work a bracket formation 5 is formed with spaced apart lugs 6 furnishing bearing for a verti cally slidable post 7 fitted therein, this post having fixed at its top a work table 8, and having suitable connection indicated at 9 with a treadle (not shown). The table 8 is normally held yieldingly at an upward limit of movement by a coil spring 10 reacting between the lower of the lugs 6 and a pin 11 on the post 7,this upper limit being determined by engagement of the adjustable stop 12 on the post 7 with the lug G.

Journaled on a pivot pin 13 set horizonally into the base of the table 8, is a relaively thin disc or feed wheel 11 having a errated edge, the top of which projects slightly above the top of the table S at the regr edge thereof and extends up through a recessed passage of the table which affords clearer-.ce therefor. 15 is a block pivoted near one of its extremities upon an eccentric stud projecting from the rearface of wheed I 4-, said block slidabiy fitting within a slot ment of the table 8 under the action of the treadle.

Mounted adjacent and just within the feed wheel 14 are a pair of co-operating rotary shear cutters 22 23 fixed at the ends of shafts 24, 25 respectively. These shafts are ournaled in parallelism in a bearing block or frame 26. The bearing block 26 is slidably guided on a bracket frame 27 which is removably clamped to and assembled with the main frame of the machine by havinga transverse projection 28 thereof, shown as circular in cross section fitted and clamped into a correspondingly shaped socket of the main frame as indicated at 29. The bracket frame 27 is equipped with a guide bar 30 on which lugs 31, 32 of the bearing block 26 are slidably guided, and on this guide bar is fitted a coil spring 33 normally under compression to react against the forward one of the lugs 31, having a. backing against an adjustable collar 34 on the bar 30. Thus the bearing block 26 carrying' the cutter shafts 2%. yieldingly held in a. forwardly projected position, such position being determined by the adjustment of a stop head 85 adjustably clamped as seen at 36 in the bracket frame 2"? and having a projection engaging the rear lug 32 of the bearing block. The shear cutters '22, 23 overlap to a small extent as seen in 6. the cutter 22 being the outer one and to hold these cutters constantly pressed together in shearing relation, a compre ssion coil spring 37 is fitted on the shaft 24- to "react against a collar 88 adjustably fixed on the shaft. 2% with a backing against a shoulder on the bearin block. The inner end of the shaft 24 is equipped with a. transverse arm 3!) engageable by a crank pin 40 on a disc ll which is fixed at the end of a shaft a2 journaled in the main frame and driven in suitable manner as by a pulley .23. The cutter shafts 24, 25 are geared together to be driven in opposite directions by apair of mating spur gears 4.4 fixed on the respective shafts. Thus it will be noted that the shear cutter mechanism constitutes a complete and self-coir tained unit that is bodily removable from the machine without interfering with any other part of the mechanism, and without any disassemblag'e of detail parts or gear connections whatsoever, merely by reieasinothe )roiection 28 from its socket 29 in the c: l J

main frame. By reason of the arm and crank pin drive 89, t0 the necessary adjustments and setting of the shear knives with their holding frame may be effected without interfering with the drive shaft 42 therefor, and this connection also permits disconnection and reconnection of the drive to the knives upon taking out and replacing i l, and then to raise wheel 14 and to co-operate therewith is a V vibrating feed bar and presser foot l5, the lower end of this bar being serrated the body portion of this presser foot being set vertically into a socket of an operating arm 46, some little forward of the plane of the feed" wheel'l l, the lower end of the presser foot being bent inward so as to be directly in the vertical p'lane'of the feed wheel as seen at 4:7. The upper. end of the operating-arm 46 of the presser foot is arranged to be vibrated by means of an eccentric 48 fixed upon the forward end of the drive shaft 3 and the intermediate portion of arm i6 is formed with an elongated slot 49 'adapt ed to slidably engage a fulcrum piece 50 carried by a T-headed bolt 51 upon which the lever arm 46 is adapted to swing "and also to slide under. the action of the eccentric 48'. The head of the T-bolt 51 is adiustably clamped in a vertical slot 52 at the front of the machine frame by means of a nut 53 threaded on the outer end thereof acting against a washer 54. which, fits against the outer face of the fulcrum piece 50, this fulcrum piece having a flange 55 at its inner end to engage the front of the frame, and spaced from the outer end of the fulcrum piece a distance so as to permit free operation of the lever arm between it and the washer 54. The gearing and operative conncctiou'sare so that a feed movement is imparted to the presser foot 4? when it is moved downward bv the eccentric 48 and this feed movement is timed approximately in unison with the feed movement of the adjacent periphery of the serrated feed wheel 14-. The movement of the feed her is such as to move the presser foot downward and then laterally to co-operate with the feed wheel the presser foot for an idle return stroke. It will be understood that, this movement of the presser foot as effected by the eccentric dSthus not only co-operates in feedingforward the material but also acts to press and tam-p the canvas hacking into the outer corner of the innersole and welt rib;

At thesameftime thatthe canvas is thus proportioned and arranged This tool is adjustably mounted to 'ektend diagonally inward at somelittle angle to the vertical, in a tool post 57, said bar being endwise adjustable in said tool post and clamped in place by set screw 58. This tool post itself ismounted for endwise adjustment so as'to position the tool 56 in correct lateral position by having a slidable fitting in the forward end of an operating arm 59, being adjustably held therein by a screw 60 which has a squared head 61 projecting at the front of the tool post for convenient operation. The operating arm 59 is mounted to oscillate on a pivot 62 carried by the frame and has rigid therewith an arm 63 which extends upalongside an arm 64 also mounted on the pivot 62, the arm 64 having a roller pin 65 carried thereby which is engaged in a cam path in a cam head 66 fixed on the shaft 3. The arm 63 has its end portion formed as a yoke which embraces the arm 64 with some little lost motion and a coil spring 67 is mounted between the arm 64 and one arm 68 of such yoke, in position so that impulse is trans- 'mitted through such spring as the arm 64 is swung, to move the tamping tool :56

' downward for engaging the work. Thus 7 passes a clamp bolt 75;

the tamping or hammer blows of the tool 56 are tempered and cushioned, the force .thereof being regulatable by an adjusting screw 69 which determines the tension of the spring 67 To aid in guiding the work to the operating tools, a guide plate 70 is provided adjustably mounted. on the frame of'the machine, having for this purpose a longitudinal slot 71 through which passes a clamping bolt 72 adapted to clamp said plate adjustablyto a short post 7 3; this adjustment being as best shown in Fig. 2, transverse of the line of feed. The post 7 3 is itself adjustable vertically on an upright slotted extension 73 of a bracket block 73 said post being clamped to said upright portion by a clamp screw 7 3 extending through the slot thereof and into said post. The bracket block 73 is adjustable on the base frame of the machine horizontally in, a direction in parallelism with the line of feed, having for this pur-' pose an elongated slot 74 through which The plate 7 O has its forward extremity curved upward into a vertical plane and turned transversely into parallelism with the line of feed as indicated at 76, this extremity extending adjacent, and as shown, just in front of the feed 'bar47. The function of this plate extremity or projection 76 is to afford a guide and backing against which-the rib R of the innersole may be positioned and held constantly as the innersole is moved forward by the feeding device described to apply and unite the canvas backing with the body of the innersole. The above described adjustments of the plate 7 0 permit i ing the'positioning of its operative portion 76 whereby the latter may, to the best advantage, serve for guiding the work into engagement with the operating tools regardless of variations in the type of innersole or of rib being operated upon. I also 10- cate a guide finger 77 just beyond the operating tools in the line of feed, and relatively close thereto, this finger being mounted adjustably on the frame, and carried by a block 78- adjustably clamped by a screw and slot 79 to a depending post 80 adjustably socketed in the base frame.

By the described construction, since the diagonally acting tamping tool 56 is operative at the inner edge of the welt rib, it will be noted that as the operation is continued around'the innersole I it is insured that the canvas within the welt rib, i. e., covering the main portion of the innersole will be stretched, and made free from folds 0r wrinkles, the inclined mounting of the tamping tool which thus causes it to engage the canvas with a. diagonal pressure havan outward component, effecting this to the best advantage. At the same time the action of the feeding and presser bar 47 insures the close and complete union of the outer part of the canvas with the feather of the sole and its pressure up into the corner of the rib. The work being guided as explained by the plate 70, its inner edge will impinge against the face of the lower shearcutter 23 as best seen in Fig. 5 and the cutter frame 26 bearing the upper cutter as well, will thereby be pressed back as permitted by the yielding of the spring 33 so that the pair of shear cutters will follow closely the edge of the innersole body and trim the canvas edge closely and accurately in register with the-edge of the innersole body. I consider this as well as the capability of removing the shear cutter body as an integral unit a valuable and important feature of invention, whether used with the other specific features set forth or not. It will therefore be understood that certain features of the invention may be used to advantage apart from others and itwill also be understood that the described construction may be varied as to details without'departing from the spirit of the invention. I therefore desire the present embodiment to be considered in all respects as illustrative and not restrictive, reference being had to the appended claims rather thanto the foregoing description, to indicate the scope of the invention.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A machine of the kind described, comprising a peripheral acting feed wheel for feeding and guiding ribbed innersoles. means for pressing and tampiug a canvas backing against the body of the innersole to unite it therewith, and means for trimming the edge of the canvas backing consisting in a pair of cutters mounted for yielding movement as a unit in a rectilinear path, oneof said cutters being engageable with the edge of the innersole body whereby both of said cutters are controlled to trim the edge of the canvas in definite relation to the edge of the innersole body.

2. In a machine of the class described, in combination with work supporting and fabric applying means, a fabric trimming mechanism comprising a nonrotatable frame, cutting means carried thereby, guides for supporting. said frame for rectilinear movement, and resilient means serving constantly to urge said frame in one direction along its guides. I i

3. I11 a machine of the class described, in combination, a work support, a fabric applying tool associated with said work support for manipulating the fabric of .a composite innersole, and fabric trimming mechanism comprising a frame, a pair of cutters carried thereby, means for actuating said cutters, and guiding means for said frame constructed and arranged to permit rectilinear movement thereof towardand from saidtool.

4; In a machine of the class described, in combination, a main frame, work supporting and fabric applying devices, and fabric trimming means including a rotary cutter, a member for supporting said cutter, and means for securing said member to the main frame, said means comprising a single pair of complementary, engaging elements.

In a machine of the class described, in combination, a main frame having a socket therein, work supporting and fabric applying means, and fabric trimming means romprising a pair of rotary cutters, a member for supportingsaid cutters and provided with a projecting stem. and means for securing said stem in said socket. i

- 6. A machine'of the kind described, comprising a table having a peripherally acting feed wheel mounted foroperation adjacent the inner edge thereof, a feed and presser bar mounted for vibrating movement to cooperate with said wheel for feeding and pressing the edge of a canvas backing to a ribbed innersole outside of the rib thereof, and a tamping tool mounted for vibration over a portion of the table in front of said feed wheel and adapted to press and unite the canvas to, the body of the innersole inside of the rib thereof. V

7. A machine of the kind described, comprising a work table mounted for vertical movement and equipped with means for yieldingly holding it at an upper limit of movement, a peripherally acting feed wheel mounted for movement with said table at the inner ed'ge'thereof, means co-operative with said feed wheel for feeding and guiding ribbed innersoles on said table, andvibrating means for tam ing the innersole within the rib thereof, said means mounted. for operation over a portion of the table without said feed wheel and said feeding means;

i 8. A machine of the kind described, comprising a work table having a feed wheel mounted for operation adjacent the inner edge thereof, a feed andpresser bar'mounted for vibrating or orbitalmovement to' co-o erate with .said feed wheel for feeding tie material and for pressingflhe outer edge of acanvasbacking against the body of an in nersole outside of the welt rib, and a, tamping tool mounted for vibration in a direction downward and diagonally inward toward said feed'bar, adapted tounite the canvas layer to the innersole body within the welt.

rib and to wrinkles. V i V 9. In a machine of the class described, in combination with work-supporting and fabric-applying means, a. fabrictrimming mechanism comprising a reot'ilinearly slid} able frame, a plurality of cooperatingcut ting implements carried by said frame, and resilient means urging said frame in one direction, a i

10. In a shoe machine, in combination, a work table, a tool mounted to vibrate toward and from said table, a bell crank lever to one arm of which saidtool is secured and having its opposite arm bifurcated at its free ex tremity to form opposed outstanding ears, a second lever mounted co-pivotally with said bell'crank lever and extending between the ears thereof, cam means for oscillating said second lever, and adjustable resilient means interposed between said second lever and one of the ears of said first lever.

11. A machine of the kind described, comprising a work table, 7 feed wheel mounted for operation adjacent the inner edge thereof, a feeding-and presser bar mounted and connected for orbital vibrating movement co-operativew'ith said feed. wheel to engage the innersole outside the welt rib thereon, and an adjustable guide member mounted to engage the welt rib for guiding the same in its feed movement.

12. A machine of the kind described, comprising a work table, a feed .wheel mounted for operation adjacent the inner edge thereof, a feeding and presser bar mounted and connected for orbital vibrating movement (Jo-operative with said feed wheelto engage the innersole outside the welt rib thereon. and a guide member mountedto engage the innersole rib for guiding the same in its feed movement, said guide member mounted for adjustment in a plane parallel with the feed line and also in a plane transverse thereof. and having a curved and vertically'tupned projecting edge engageable with the stretch the same to remove welt peripherally acting rib of the innersole to guide the samein its feed movement.

13. A machine of the class described having, in combination, a fabric manipulating tool, a work table arranged to support material in operative relation to the tool, means supporting said table for sliding movement toward and from said tool, a relatively thin rotary feed disc movable with said table and having a portion of its peripheral edge projecting through a recess in said table, and means for rotating said disc continuously in all positions of said table.

14. machine of the class described having, in combination, a slidable work table, a rotary feed wheel movable with said table, and means for transmitting rotary movement to said feed wheel in all positions of the table comprising a driven shaft, a head fixed to the extremity of said shaft and having a transverse diametral slot therein, a

block slidable in said slot, and an eccentric pin fixed in the face of said feed wheel and serving as a pivot for said block.

15. A shoe machine having, in combination, a work table, a vertically slidable memher for supporting the same, a feed wheel" rotatably mounted upon a pin extending substantially horizontally from said slidable member, and means for rotating said feed wheel comprising a driven shaft with which said pin is normally in axial alignment, :1 head fixed to the extremity of said shaft adjacent the feed wheel and provided with a transverse slot, a block slidable in said slot, and a pin having pivotal engagement with said block near one extremity thereof and eccentrically fixed in the face of the feed wheel.

In testimony whereof, I have signed my name to this specification.

THOMAS F. HART.

Images