US1152799A - Heel-seat-trimming machine for use in the manufacture of boots and shoes. - Google Patents

Description

M. T. DENNE. HEEL SEAT TRIIVIMING MACHINE FORU SE IN THE MANUFACTURE OF BOOTS AND SHOES.

AP PLICATION FILED AUG.22. I9lO.

PatontcdSept. T, 191;).

3 SHEETSSHEE1I.

I M. T. DENNE. HEEL SEAT TRIMMING MACHINE FOR USE IN'THE- MANUFACTURE OF BOOTS AND SHOES.

I APPLICATION HLED 5116,22. 1919 1,152,799

Patented'Sepfi. 7,1915.

To all whom it may concern 1 UNITED srarns PATENT oFFIcE.

MARK THOMAS DENNE, or RUSHDEN, ENGLAND.

HEEL-SE.A'JI lRIMMING MACI-IIN'IE- FOR USE IN THE MANUFACTURE OF BOOTS AND SHOES. I

Be it known that I, MARK Trio As DENNE, a subject of the King of Great Britain and Ireland, residing at Rushden, Northamptonshire, England, have invented new and useful Improvements in Heel-Seat- Trimming Machines for Use in the Manufacture of Boots and Shoes, of which the following. is a specification.

This -invention has reference to improvements in heel seat trimming'machines for use in the manufacture of boots and shoes whereby the edge of the sole forming the heel seat may be trimmed at any desired predetermined distance from the upper or the.

. crease of a lasted boot or shoe, and it'consists essentially in a particular construction and arrangement of the trimming mechanism and feed mechanism and a particular arrangement of the presser foot. I

In the accompanying drawing Flgure 1 is A a side elevational view partly in section,

Fig. 2 a plan view, Fig. 3 a front elevation of aheel seat trimming machine constructed in accordance with myinvention, andFig.

4: is a detail view hereinafter referred to.

In said drawings the numeral 1 indicates an arcuate trimming knife and 2 a similarly shaped feed awl or feed foot which is located at the side of the knife and preferably slightly to the rear thereof and is adapted to enter or engage the projecting part of the sole to be trimmed. l

The knife and feeder'are supported in a clamp or cramp 3 of a rocking bar or carrier 4, which clamp has V grooves in which the correspondingly shaped outer edges of said knife and feeder fit. The bar 4; is sup ported on a spindle 5 on which it is capable of rocking and also sliding axially and its rear end is formed with a quasi claw 6 having a cylindrical recess 7 in which a cylin drical block 8 slidably and rotatably fits.

An eccentric or crank pin 9, formed or provided on a shaft 10 for which I provide suitable bearingsat the rear of the machine head and on which a triangular cam 9 and the usual driving and loose pulleys 11 are mounted, enters an aperture in the block 8 so that'the rotation of the shaft 10 will rock the lever 4 and consequently impart to the knife 1 and feeder 2 verticalrock-ing move- 'ments. each end with upwardly extending arms 13,

one of which is bifurcated and engages the I Specification of Letters Patent.

A sleeve or equivalent 12 formed at.

' Patented Sept. '7, 1915.

Application fi1ed-August22, 1910. Serial No. 578,397.

triangular cam 9f on the shaft 1Q and the other of which engages a slot in the boss of the lever 4, is mounted .on. a rock-shaft 14 located below the lever 4:, the .position of the crank pin 9 and triangular cam 9? relatively to each other being such that at each rotation of the shaft 10 the knife and feeder will have imparted to them by the combined actionof the crank pin 9 and the triangular cam 9 a four motion feed movement, the

vertical rocking movement being brought about byvthe action of thecrank pin 9 and the horizontal movements by the triangular cam 9 the knifeduring its downward movement severing or cutting through the sole edge. Fig. 4 is a front end view of the said,

shaft 10, crank pin '9 and cam 9".

The work issupported with its sole or heel seat substantially horizontal by a table 15 at the front of the head and also by a roller hereinafter referred to. A gage 16,

whose front end is shaped to approximately conform to the shape of the heel portion bf the lasted 'boot, the sole or heel seat of which isto be trimmed, is adjustably car.-

ried by an approximately inverted U-shaped saddle piece 17 which is supported onthe spindle 5. The bottom edge or surface of the gage 16 is intended to engage with the upper surface of the projecting sole edge and act as a presser foot, .the saddle piece 17 being pressed forwardlyso that the presser foot'exerts the necessary pressure on the sole edge-by a spring 18- arranged within a suitable housing and acting on a plunger 19 pivotally connected to the saddle 17. The

said presser foot presses the sole edge into firm contact with a roller 20 the periphery of which projects up into an aperture in the table 15 andmay with advantage be formed with teeth or serrations to insure a better The saddle plece 17 is provided with a handle 17 by pressing on which the work man may raise the presserfoc it when about to insert or remove-work. l

V The parts are so arranged that the acting surface of the presser foot is substantially in horizontal alinement with the axis of the spindle 5 on which it turns and accordingly thepressure which the .workman exerts in. pressing the lastedboot against the gage or presser foot 16 has no tendency to raise the said presser-foot.

At the front of the machine head and immay from time totime be moved on its support so asto ,ofler a fresh shearingedge accordingly as wear takes place.

The roller is preferably supported on the rock-shaft 14 and the frontend of said shaft may have a, ratchet ring 22 mounted on' 5 it --the teeth of which engage with corresponding teeth on the roller 20. The ratchet ring 22. is made to rotate or rock with the shaft 14: beingcoupled thereto by a cotter 23'but is capable ofendwi'se movement thereon andis pressed againstthe roller QO by a spring the-arrangement being such that when the rock-shaft is moved in one direc tion bygthe tri angular.cam 9 the ratchet ring 22 willrotate the .roller20 with it and thus feed the work, and on the return movement of the shaft lathe'ratchet ring-2 2 will 7 glide overthe-teeth. of the roller 20.

If desired, the shear blade 21' may be' fixed -'to the roller 20eso that at-each feed movement of said rollervthesheariwill be made -to present afresh cutting edge.-

The gage-16 may at its *lower edges be L the: me

madeto. enter; the crease to serve as a crease guide, and-as' the work is-fed by the-roller.

- ingedge of the heel seat of lasted boots or shoes, the combination ,of a 'work table, a trimming knife, a stationary shear-blade lo- 20 andthe feeder the operator will move the work so astbfproperly present it ;to;the cutjThe numeral '24 indicates, the head of. the I machine of suitable construction to carry hanism, and 25 is the usual standard whichsupports the-said head.

l fj WhatxI plaim as my =inventlon and desire shoes,

.r a 'feeder-f areimounted, ,a shaft on' which the said lever is mounted so that it cangrock and byl'fLetters .Patent is I e combinations-of a work support, a curved trimming .'knife,. a curved feeder, a lever on which the said'knife and slide thereon, and means comprising a ro tating'crank pin and a triangular cam for imparting a four-motion movement to the said rocking lever,

2. In a machine for. the project-*- ing edge'lof the heel seat" of lasted boots and shoes, the'combination of a work table,a' feed -r'oller'let, into' an aperture in the fsaidl.

table, means for intermittently rotating the said. roller, a curved trimming, knife," acurved feeder, means for imparting a simultaneous'four-motlon movement to the, said a' machine':fj r trimming the project ofthe heel seat of'l asted boots and knife and feeder, anda combined presserfoot 'an'd gpge sup orted on a horizontal Spinal. L610 axis 0 which is in approximately fiheisa me horizontal lane as the'acting face of the said presseroot.

3. In a machine for trimming the projecthorizontal spindle-to carry said knife and feedfoot at its front end and having a claw with a cylindrical recess at its other 'end, a cylindrical block in said recess, means to impart simultaneous vertical and horizontalmovements to said block and means "to .i1 I 1-- part axial movements to the rocking lever,

4. In a machine for trimming the projecting edge of the heel seat of lasted boots or .shoes, vthe combination offa work-table, a work feedwheel, means for intermittently. rotating said-workfeed wheel, atrimming knife, a spring pressed presser foot to engage the upper face of the sole near its edge r and also to limit'the movement of the work toward the knife, a saddle to carry said presser foot and a spindle whose axis is in substantiallythe vplane of the table to carry, aidsa'ddle. v v

5. In a machine for trimming the projects cated in a slot in-the said table'and adapted "to cooperate with, the said knife, and a spring-pressed presser foot pivotally mount, 1 t

ed on a spindlethe axis of ,which approximately vthe same, horizontal plane "as the, acting face of the said ipresser foot. y 6. In a machine fortrimining the projecting edge of the heel-seat of lasted boots or shoes, the. combination ,ofa work-table, an intermittently f rotatable work feed wheel, an arcuate trimming knife, a stationaryshear. blade adjustably .mounted below the surface of the work-table and adapted to cooperate with'the said knife, a rocking lever .to carry the said trimming knife, a combined presserfoot and-work gage, ,and means'to impart four-motionmovement to said rocking lever.v

In testimony whereof I have signedniy name to this specification in the presence of 'two subscribing witnesses.

v MARK THOMAS DENNE. I Witnesses: j J. Fussnrm,

'L; H. TAYLOR.

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