USRE1740E - Charles h - Google Patents

Description

To allA whom it mag/concern.- A p Be itknown-that LACHARLEs H. HELms, of Poughkeepsie,l Dutchess countyMNew York,

' UNITED STATES PATENT OFFICE.

CHARLES H. HELMS, OF POUGHKEEPS'IE, 'NEW YORK.

TRIMMING THE HVEELS OF BOOTS AND SHOES.

-speeificnuun Aforming par: df Leners Patent N0. 31,666, dated Martiri?, 1861; Reissue No. 1,140, dated l i Y 0 Y n.

have invented a new and useful achine for Trimming and Shaping the Heels of Boots and Shoes, which I denominate a Heel-Trimmer 'and I do hereby declare thefollowing to be a full description of the same.

The object of my invention is tort'rim-the 1 heels of boots and shoes by a rotatory cutter rotating on an axis Aparallel with the'rotation of the heel of thc boot or shoe,so that by the shape of the cutters, guided in their operations by a pattern-plate and a shoulder or loose washer on the outer end of thecutter-stock running in the rand or crease of the heel, and resting on the counter of the boot or shoe,- to protect it from the action f the cutters, the heel can be completely finished by by the single operation of giving a half-rotation to it on its axis; second, in the combination of the pattern-plate attached to the heel of the `hoot or shoe so as to form one of the centers of the sliding frame on which the boot or shoe rotates, with a stationary rotatory cutter and guide-roller on its axis working or restiu g on the patternplate to guide and limit the action vot' the cutters in shaping and trimlming the heel of the boot or shoel when the said boot or shoe is rotated on an axisparal- -lel with the axis of the rotatory cutters; third,

`in the combination, withthe cutter-stock, of a shoulder or loose roller or washer-plate to the outside of the-cutters,so as to run in the rand or crease of the heel and resting upon the counter of the boot or shoe, and thereby limit the action of the cutters to the heel, and thus lprevent the counters fromgetting cut; fourt ,in the method of supporting the vertically-acting sliding frame in the guideway 0f the standard upon a spiral lspring, in combination with a foot-lever when theaxis of the said sliding frame for holding the boot or l'shoe is parallel with the axis'` of the rotatory cutter, so as to enable the operative to move the sliding frame up and down at the same time lie rotates the heel of the shoe with his hand under the action of the rotatoryl cutters.

But to describe my invention more particularly I will refer to the accompanying drawings, forming a part of this specitication, the same letters of reference, wherever they occur, referring to like parts.

Figure 1 is a transverse section. Fig. 2 is a perspective view. Fig. 3 is a plan view of the rotatory cutter, showing to the back of them' a loose friction-roller working on the edge of .the heel-guide or pattern-plate, to which is attached a shoe-holder.

Letter'Ais 'the"s'tandard`, supported upon 'a suitable table, so as to give hrm-ness and steadiness to the machine when in motion. In the face of this standard is a guideway, c c c, in which works a vertical sliding frame, B, made somewhat in the shape ot' a siphon, the long leg of which works in the guideway, and is.

held securely in it by means of nuts and washers a a, connected with the standard. Under the end of the sliding frame, to prevent it from falling down in the guideway, is adjusted a stron gspiral spring, through the center of which passes `a rod, e, which connects with the end of the sliding frame, and at its lower end with a treadle on the floor.

The object of supporting the sliding frame upon a spring and having a foot-lever to operate it is twofold, first, to obtain an elastic pressure of the heel against the rotatory cutters, and, second, for the purpose 4of holding the upand-down motions of the frame under the control of .the foot otthe operator, so as to allow him the "free use of his hands to 'rotate the shoe onfthe centers or axis b and b of the sliding frame.

Letter F is the rotatory cutter-stock secured on the end ot' av horizontal axis or journal, f, working through a box, Z, secured to the standard, and projecting through a vertical slot or opening in the sliding frame, so as to allow it to slide up and down without interference with the axis of the cutter-stock. 0n the end of the axis or journal is s ily-wheel,

and also a pinionwheel, g, which gears into a driving gear-wheel, g", or other suitable gear, 4for rotating the cutter-stock. This cutterstock is made so as to have two knives on it of any suitable form, and are secured to it by proper set-screws. If deemed necessary, more knives may be used. 0n the outer end of the cutter-stock is formed a shoulder, g3, the edge of which works in the rand or crease formed between the heel vand counter, While the broad part of it rests upon or covers the counter. The object of this device is to limit the action of the cutters to the heel, and at the same time protect the counter from being cut. It will be obvious that aloose roller or washer on the end of the cutter-stock axis may be substituted ,for the shoulder and an-v swer an equally useul purpose. Letter His a loose roller running on a shoulder on the back side of the cutter-stock, though this is not material, as it may be placed to run directly on the cutterstock axis. The object of this roller is to guide or control the action of the rotary cutters in the depth of their cut byrestingonaheel or pattern plate, I, secured to the heel of the boot or shoe by small steadying-pins, so as to form one of the bearings or centers of motion for the heel to turn Into this bearing in the heel lor pattern plate engages a center-pin or axis, b, secured l v to the face of the sliding frame on a line with a corresponding center-pin, b, in the end of the short leg of the sliding frame. The object of this arrangement of these parts is to trim the heel of the boot or shoe from end to end by rotating it on an axis parallelwith the axis ot' the rotary cutters, which thereby enablesv y the sole of the "shoe is pressed as it rotates to keep the heel steady under the action of the cutters. Letter J is a frame attached to the pattern or heel plate having va toe-piece and spring `at its lower end to accommodate varyf ing sizes of shoes. Letter mis a set-screw for holding the bolt or center-pin b in its place.

Operation: Attach the pattern or heel plate to the heel of the boot or shoe; then with your foot on the treadle bring .the sliding frame down far enough to permit the pattern-plate to engage in the center-pins b and b. Now

with the right hand keep the shoe steady,with` claim and desire to secure by Letters Patent of the United States- 1. The use of the vertical sliding frame having a horizontal axis on which to center the heel -of the boot or shoe,`iii combination Y with a rotary cutter arrang d ina fixed standard with its axis parallel with the axis of-thc sliding frame on which the shoe is centered for the purpose of trim mingthe heel from end to end, as hereinbefore set forth.

2. The use of the-'pattern plate when secured to the heel of a boot orshoe in a vertical position so as to obtain a center round which' the heel turns, in combination with a guideroller on the axis of a horizontal rotarycutter and the rotary cutters, vsubstantially as hereinbefore set orth.

3. `The use of a shoulder or loose roller on the end of the cutter-stock as a counter-` protector, in combination with a rotary cutter and a boot or shoe when suspended vertically so as to turn on an axis parallel with the axis I of the rotary cutter, substantially as hereinbefore set forth.

4. The use of the spring for'snpporting .the sliding frame in a vertical position in the guideways of the standard with an elastic pressure under the action of the rotary cutter,

in combination with thesliding frame of a boot or shoe heel trimming machine and the treadle for operating the same, substantially as set forth. A

O. Il. HELMS. Witnesses: f i

CHARLES L. BARRITT, JAS. HENDERSON.

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