US609519A - Trimming-machine for boot or shoe work - Google Patents

Description

Nb. 609,519. Patented Allg. 23, |893i B. F. MAYO. TRIMMING MACHINE FOR BOOT 0R SHOE WORK.

(Applimtion filed May 22, 1897.)

Nu Modem BENJAMIN F. MAYO, OF SALEM, MASSACHUSETTS, ASSIGNOR TO JAMES W. BROOKS, PRINCIPAL TRUSTEE, OF PETERSHAM, AND JOIIN BROOKS, ASSOCIATE TRUSTEE, OF CAMBRIDGE, MASSACHUSETTS.

TRlMivslNe-MAQHINE Fouu soo-r ou SHOE wom` SPECIFICATION formingpart of Letters Patent No. eoe,519, date .August es, lees.

` Application filed May 22, 1897. SerialNo. 637,660. (No model.)

To all whom 'rtmay concern; b

Be it known that L'BENJMIN F. MAYO, of Salem, county of Essex, State of Massachusetts, have invented an Improvement in Trimming-Machines for Boot or Shoe Work, of which the following description, in connection with the accompanying drawings, is a vIO Cutter.

specification, like letters and figures on the drawings representing like parts.

This invention has for its object to improve the construction and operation of that class of trimming-machines employed for boot and shoe work, my improvement consisting in combining with a rotary cutter and its shaft a spring-supported yielding table movable back and forth parallel to the aXis of motion of the said shaft and itsv cutter, the said table being also adjustable, so that it in use may occupy a position more or less angular with relation to the'axis of rotation of said shaft and Figure -l in top or plan view shows a sufficient portion of a trimming-machine to illustrate myimprovements. Fig. 2 is a side elevation of the parts shown in Fig. l, and Fig. 3 is a front or left-hand view of the parts shown in Fig. l.

In the drawings let A represent the framework of a usual trimming-machine for boot and shoe work, said framework having bearings for a suitable rotating shaft B, provided at its front or left hand end with the randguide a, a rotary cutter b, and a feather-edger composed of a ring c, having a series of bevelended fingers which enter the spaces between the blades of and rotate in unison with the cutter, said fingers acting against the treadface of the heel being trimmed. This featheredger by acting against the tread-face of the heel or sole endof the heel in the line ofthe cut being made by the blades of the cutter tends to keep the latter firmly up in position in the line where it is being cut, thus preventing the leather from spreadin g or rolling over to leave a feather or ragged edge.

The rand-guide a is provided at its outer face with a beveled surface, (shown at the left in Figs. l and 2,) which during the action of the trimming-cutter rests against the upper lying on the last,it may be, andfollows the contour of the last during thetrimming operation.

The framework receives a sleeved, which is fixed thereon and constitutes oneoi the bearings for the shaft B. A Vspring c, surrounds the sleeve d, and beyond said spring the said sleeve is also surrounded by a sliding collar e', said collar having projecting from one side of it an arm e2 to constitute a tablesupport entirely independent of the randguide. This table-support has pivoted upon itat e3, near the circumference of the randguide, a table e4, said table having a wing or projection e5, which is slotted at f to be entered by a clamp-screw f', screwed into the arm e2, said clamp-screw enabling the face of the table to be adj usted to any desired inclination with relation to the aXisof rotation arm, and table are free to slide longitudinally on or withrelationto the shaftB independently of the rand-guide, and to prevent the rotation of said collar on the said sleeve I have provided the collar with a slot e6, which is entered by a pin extended from said sleeve d. l

The front end of the sleeve CZ receives against it a spiral spring g, the opposite end of said spring acting against the hollow shank h of the feather-edger c, thus leaving said featheredger free to be slid longitudinally on the shaft B to uncover more or less of the length of the teeth of the cutter, as may be required, to thereby adapt the cutter to trim a heel or sole of varying'thickness.

The rand-guide a runs in a fixed path in the usual rand-crease or the space between the sole and upper, and the convenededge portion a of the rand-guide acts uponthe upper lying, it maybe, on thelast, and at the same time the feather-edger acts againstthe bottom or tread-face of the heel if a heel is being trimmed, or the sole if the heel is of the variety known as spring-heel, or the face of the sole if the sole alone is being trimmed, the said feather-edger yielding to the variations in thickness of the heel or sole, and the said table follows the featherfedger as it adapts itself to varying thicknesses being trimmed.

The shoe the heel of which is bein gtrimmed will first be pressed against the face of the table e4, 'and said heel or sole, as it may be, will be then pressed toward and against the cutter until the rand-guide enters the usual rand-crease, the edge of the heel or sole acting against the feather-edger and crowding it to the right, viewing Fig. 1, more or less,accord ing to the thickness of the heel or sole, and during this operation the shoe will be turned more or less on or about said table.

If it should be desired to trim the heel at a delined angle, then the table may be adjusted by or through the set-screw f to the required angle, and thereafter during the trimming operation the table will remain at the same angle.

In this invention the table is not swung up or down or turning about a pivot during the operation of trimming the heel.

Having fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a trimming-machine, a rotary shaft having an attached rand-guide, and a cutter; and a feather-edger loose on said shaft and having teeth to enter between the blades of the cutter, said featherwedger rotating with said cutter and being movable longitudinally on or with relation to said shaft; combined with an independent, spring-controlled table made movable in a line parallel with the axis of rotation of vthe said shaft, to follow the feather-edger in adapting itself to material of varying thickness, substantially as described.

2. In a trimming-machine for boots and shoes, a rotary shaft, a connected rand-guide, and a rotating cutter; a spring-controlled feather-edger rotatable with said cutter and adapted to be moved to and from said randguide by varying thicknesses of material being trimmed; combined with a table-support and a table made adjustable on said support, to thereby change its angle with relation to the axis of said shaft, said table-support and table being movable in a line parallel to the axis of rotation of said shaft, and in unison with the feather-edger, substantially as dev scribed.

3. In a trimming-machine, a rotary shaft having an attached rand-guide, and a cutter; a feather-edger surrounding said shaft and rotatable therewith and with said cutter; combined with an independent table-support, and a table pivotally mounted thereon near the circumference of the said feather-edger, and a spring to keep the table pressed in a yielding manner toward the rand-guide, substantially as described.

4E. In a trimming-machine, a rotary shaft having an attached randfguide, and a cutter; a feather-edger surrounding said shaft and rotatable with it and said cutter; a spring surrounding said shaft and acting upon said feather-edger, to move it toward said cutter; combined with an independent table-support, and a table pivotally mounted thereon, and a spring to normally press said table-support toward said rand-guide, substantially as described.

5. In a trimming-machine, a rotary shaft having an attached rand-guide, and a cutter; a feather-edger surrounding said shaft loosely and rotated With said shaft through the said cutter, and a spring to move said featheredger toward said cutter; combined with a table-support independent of said featheredger and movable longitudinally with relation to the axis of said shaft, said table-support having pivoted upon it near the circumference of the rand-guide a table, and means to hold said table in adjusted position, substantially as described.

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

BENJAMIN F. MAYO.

Witnesses:

AUGUSTA E. DEAN, FREDERICK L. EMERY.

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