US385702A

US385702A - Heel-burnishing machine

Info

Publication number: US385702A
Authority: US
Publication date: 1888-07-10
Anticipated expiration: 1905-07-10

Description

(No Model.) 3 Sheets-Sheet 1.

W. C. EVANS.

HEEL BURNISHING MACHINE.

No. 385,702. Patented July 10.1888.

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(No Model.) 3 SheetsSheefn 2.

W. 0. EVANS. 1 HEEL BURNISHING MACHINE.

No. 385,702; Patented July 10, 1888.

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W. O. EVANS.

HEEL BURNISHING MACHINE. No. 385,702. Patented July 10, 1888.

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t UNITED STATES PATENT @rrtcs.

YVARREN O. EVANS, OF EXETER, NEYV HAMPSHIRE, ASSIGNOR TO THE ROCIQ INGHAM MACHINE COMPANY, OF NEW HAMPSHIRE.

HEEL BURNISHENG MACHINE.

SPECIFICATION forming part of Letters Patent No. 385,702, dated July 10, 1888.

Serial No. 258,650. (No model.)

To aZZ whom 2125 may concern.-

Be it known that I, WARREN G. EVANS, a citizen of the United States, and a resident of Exeter, in the county of Rockingham and State 5 of New Hampshire, have invented new and useful Improvements in Heel-Burnishing Machines, of which the following, taken in conneetion with the accompanying drawings, isa specification.

[ Thisinvention relates to improvements in heel-burnishing machines, and it is carried out as follows, reference being bad to the accompauying drawings, whcrein- Figure 1 represents a rear view of the mat chine. Fig. 2 represents a vertical longitudinal section of the same, Fig. 3 is a plan view of the machine, and Fig. 4: represents a front elevation of the same. Fig. 5 represents an enlarged side elevation of the bu rnishing-tool and its connecting mechanism to the rock shaft; and Fig. 6 represents an enlarged side elevation of the jacking device.

Similar letters refer to similar parts whereever they occur on the different parts of the 2 drawings. 1

a is the frame or standard of the machine,as usual.

I) is the driving-shaft, located in hearings a a on the standard (a, and provided with fast and loose pulleys I) b, to which a rotary motion is imparted by means of a belt from a shaft above or below the machine.

To the top of the standard a is secured the plate (I, having upwardly-prejecting arms d 5 and d, the upper ends of which serve as bearings for the ends of the rocksha ft or rocking head D, as shown in Fig. 2.

The mechanism for rocking the head D is carried out as follows: To the driving-shaft b 4.0 is secured the eccentric-disk e, surrounded by the ring 6, to which is attached the link or rod 6, the upper end of which is pivoted at e to the segmental gear E, that is journaled on a pin or stud, e, secured to the bearingarm d,

5 as shown in Fig. 2. The teeth of the segmental gear E mesh into the teeth of the pinion D, secured to the rear end of the rockshaft or rocking head D, and it will thus be seen that an automatic rocking motion is imparted to the shaft or head D from the rotary driving-shaft b for the purpose of oscillating the burnishing-tool, so as to cause it to follow the curvature of the heel from breast to breast. t

F is the burnishing tool, which is firmly se cured to the forward end of the sleevefiwhich sleeve is adapted to rotate and slide forward and back upon the spindle r that forms the forward extension of a lever, g, which is pivoted at g to a downwardlyprojecting linleg, that passes through a slot or hole in the rock shaft D, and is adjustably secured thereto by means of a setscrew, d". (Shown in Fig. 5.)

The burnishing-tool F is autoinaticallyheld against the heel to be burnished with a yielding pressure by means of the spring 9, interposed between the under side of the rear end of the pivoted leverg and the upper end of an adjustable pressure-screw d, that is screwed through the rock-shaft d, as shown in Figs. '2 and 5. The lnirnishing-tool Fissetinaquick rotary motion around its axis by the follow ing mechanism: To the plate d is secured the shaft it, upon which are loosely journalcd the friction-pulleys h and h, as shown in Fig. 2. The pulley h is set in a rotary motion by means of a belt from a countershaft, preferably above the machine. Between the frictionpulleys It and It is located on the shaft h a spring, h", serving the purpose of disconnect- 8c ing the pulley h from the pulley 7!. whenever it is desired to stop the rotary motion of the burnishing-tool.

For the purpose of imparting a rotary motion from the driving-pt-illey h to the pulley h, I employ a treadle lever, H, pivoted at l-l to the frame a, and having pivoted to its rea r end the upwardly-projecting link or rod 2, the upper end of which is made in the form of a forked or slotted incline or wedge, i, that embraces the shaft it between the rear of the put lcy h and a wedge-shaped collar, h, secured to the outer end of said shaft h, as shown in Figs. 1 and 2. Thus by depressing the treadlelever H the wedge 73 causes the pulley h to 5 be brought and held in frictional contact with the drivingpulley 71., and is thereby set in a rotary motion.

From the pulley It" leads a belt or cord, Ir, to the small pulley It, that is secured to the too shaft 70, which shaft is journaled in the sleeve 70', and has secured to its inner end the pulley 70 from which leads a cord or belt, 70, to the rear portion of the burnisher-tool sleevef, as shown in Fig. 2, thus causing the said sleeve and its burnishertool F to be quickly rotated when the treadle-lever H is depressed. During the rotation of the said burnisher-tool it is automatically reciprocated longitudinally in the direction of its axis by mechanism hereinafter to be described, so as to reach all parts of the heel from top lift to heel-seat, and during such reciprocatory motion ofthe hurnishertool it is caused to rise and fall, according to the inclination or curvature of the heel from heel-seat to top lift, against which it is held in contact by means of the adjustable spring 9', and to permit the sleevef to rise and fall without loosening or tightening the cord or belt It", I pivot'the sleeve k in its rear end at k to the stationary arm or bracket k, that is secured to the rearof the standard a, as shown in Fig. 2. The cord or belt lflisautomatically' held ata proper tension on its pulleys by means of a suitable spring, K, one end of which is secured to the bearing-sleeve 7c and the other end to the frame a, or in any other suitable or equivalent manner.

To the rock-shaft D is secured the upwardly-projecting screw-bolt I, that passes through the slotted or forked rear end, of the lever g, as shown in Figs. 2, 3, and 5, and is provided in its upper end with adjustable set-nuts Z Z, as shown, which latter serve to limit the downward-tipping motion of the burnishertool and its sleevefand spindle g, so as to preventsaid tool orits sleeve from coming in contact with the top lift-supporting arm at or the top-lift plate m, secured to its outer end, as shown in Fig. 2. The top-lift support at is secured in a suitable manner to the plate d or to the top of the standard a, as may be found most practical.

From the above it will be seen that the burnisher-tool F is rotated around its axis, oscillated forward and back from breast to breast of the heel, and allowed to yield against the intlnence of the spring 9*, so as to follow the curvature of the heel when the machine is in operation. In addition to such motions of the burnisher-tool, a longitudinal reciprocating motion is imparted to it in thedirection of its axis to enable it to reach and burnish all parts of the heel from top lift to heclseat, and the mechanism for imparting such motion to the burnisher-tool is carried out as follows:

In grooves g on the sides of the rock-lever g is adjustable forward and back the bearing or block or, to which is pivoted at a the lever at, having on its under side notches or recesses n at, two or more, into which projects the locking projection 9 that is secured to the rocklever g, as shown in Figs. 2 and 5, the said levers n and 9 being locked together in the positions shown in said figures by the influenee of a spring, a, interposed between the rear end of the lever a and the upper portion of theadjnstable block it, as shown in Figs. 2 and 5. The forward end of the lever n hasa downwardly-projecting pin, 12", the lower end of which projects into one of two or more camgroov es, f f, made on the periphery of the rotary sleevef, as shown in Figs. 2, 3, and 5. such cam-grooves having each a longitudinal throw or pitch equal to the height of the heel to he burnished.

I make the pitch of one of said cam-grooves f ditferent from the other or others, so that by merely raising the forward end of the levcrn and disengaging its projection n from the camgroove f in which it was located, and at the same time unlocking thelevern from the locking-pin g on the lever g, the block it and lever n may" be moved forward or back on the lever g and locked in such desired position by the pin 9 and spring 12*, allowing the pin n to project in another of the canrgroovesj", thus changing the longitudinal motion of the sleeve f and its burnisher-tool F, according to the pitch of the groove f in which, for the time being, the projection or pin a is inserted. The lever n being thus locked in position on the lever g and the sleeve f being rotated around the spindle y, it will readily be understood that the sleeve f will be automatically reciprocated in the direction of its axis a distance equal to the pitch of the cam-groovef in which the projection n on the lever 71/ is, for the time being, inserted, and thus cause the burnisher-tool F to rub and burnish the heel from heel-seat to top lift.

a" is a stop projection on the under side of the rear end of the lever n, that serves to limit the rocking motion of said lever while it isbeing rocked for the purpose of changing the position of said lever and block or relative to the sleevef.

0 is the jack, having horizontal plate 0 in its lower end, that is adjustable to and from the standard a in suitable guides, p p, in the jacksupporting bracket 19, which latter is adjustable up and down in guides a a on the standard a, as shown in Fig. 4. The bracketp is moved upward in its guides by means of the treadle-lever q, pivoted at q to the standard a, and having pivoted to its inner end the link or rod 9, the upper end of which is connected to an arm or bracket, 1)", on thejack-support p, as shown in Fig. 2.

a is a slotted perforation in the front wall of the standard a, through which the arm 1) projects, as shown in said Fig. 2.

p p are adjustable set screws screwed through a rib or projection, a, 011 the standard a, as shown in Figs. 2, 4t, and 6, such set screws serving as stops against the upper end of the jack-supportp to limit the upward motion of the latter and its jack, so as to retain the shoe in its proper position relative to the burnisher-tool F.

The boot or shoe heel is clamped in position between the top-lift plate at on the support in and the rear upper end ofthejack 0 by means of the hand-lever 1', pivoted at r to one of the guides p,and provided with a slotted perforation, 1", through which a pin or bolt, 0', passes loosely, said pin being secured to the jackplate 0, as shown in Figs. 2, 3, and 6. To the hand-lever r is secured in a suitable manner a spring-pressed pawl, r, the free end of which engages in the teeth of the toothed rack p on the corresponding guide 1), as shown in Figs. 3 and 6. v'Ihus by pushing the free end of hand-lever 1" toward the machine thejack 0 is pressed forward until the heel of the boot or shoe S (in dotted lines inFig. 2) is clamped firmly between said jack and the heel-platem on the support at, as shown in Fig. 2. The pawl 9- retains the jack in working position on the bracketp until the heel is burnished. when the pawl r is disengaged from the ratehet-bar p, the jack moved toward the operator, and the bracket 1) and jack 0 lowered by releasing the foot-pressure on the treadle q. The shoe is then removed from the jack and replaced with another, and so on.

a is a stop-screw or projection on the front of the standard a to limit the downward mo tion of the jack-supporting bracket 1).

Having thus fully described the nature, construction, and operation of my invention, I wish to secure by Letters Patent and cl aim-- 1. In a burnishingmachine, the jacking mechanism, as described, consisting of the stationary arm at and its top lift rest at, combined with the vertically-adjustable jacksupporting bracket p, having guides pp for the reception of the base 0 of the jack 0, and the lever 0', connected to the jack-plate or base 0, pivoted in one end to the guidep, and having springpresscd pawl r, adapted to lock in the ratchet-bar p on thejack'support, as and for the purpose set forth.

2. In a burnishing machine, the rotary bnrnisher-tool F, secured to the sleevef, and adapted to rotate and reciprocate on the spindle g, as described, and the mechanism for imparting a rotary motion to said sleeve f, consisting of the friction-clutch pulleys h h, the tubular bearing adapted to swing on the fulcrum it and having the tension-spring K, the spindle It, journaled in the bearing 70, and having pulleys k and k secured to its ends,with belts or cords h lt, leading, respectively, from said pulleys to the friction-pulley h and sleeve f, as and for the purpose set forth.

3. In a burnishing-machine, the mechanism for imparting an oscillating motion to the lmrnisher-tool, consisting of the rock-shaft or head D, journaled in the stationary bearings d d", and having pivoted to an extension or projection, g", the lever 9, upon aspindle, g, of which is loosely journaled the burnishersleeve f, and the adjustable spring-pressure device dg for holding the bnrnisher-tool F in contact with the heel and to allow it to yield relative to the curvature of such heel, as and for the purpose set forth.

4. In a burnishing-machine, the automatic mechanism for reciprocating the burnishertool from top to bottom of the heel, consisting of the burnisher-tool sleeve f, journaled on the spindle g, and having one or more camgrooves, f f, as described, combined with the lever or arm 9, the adjustable block a, secured to said lever g, and having pivoted to it the spring-pressed lever it, provided with a pin or projection, n, adapted to fit in any one of the cam-grooves on the sleeve f, and means for looking it in position to the said lever g, as and for the purpose set forth.

5. In a burnishingmachine, the rocking shaft or head I), and the lever g, pivoted to an arm or extension of said head, the spindle g, secured to or made in onepiece with said leverg, the bin'nisher-sleevef, mounted loosely on said spindle g, and having one or more camgrooves, ff, combined with the block a, adjustable on the arm 9, and having pivoted to it the spring-pressed levern, having aprojection, a, adapted to enter any one of the camgroovesf, and means for locking said levers a 9 together, as and for the purpose set forth.

6. 1n the herein-described burnishing-ma chine, the friction-clutch pulleys 71 h, loosely journaled on the stationary shaft or spindle h, and having sp ri ugh, i nterposed between them, and the inclined block h, secured to the shaft h, in combination with the treadle I-I, pivoted at H, and having connecting rod 1', with forked or slotted wedge part i, interposed between the inclined block if and the pulley h, as and for the purpose set forth.

7. In a burnishing-machine, the rock-lever D, and the lever g, pivoted to an arm or eX- tension, combined with the adjustable spring pressure device (1 g, interposed between the said levers, and the pin or bolt Z, secured to one of said levers and provided with regulating stop-nuts or collars Z, as and for the purpose set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses,on this 15th day of October, A. D. 1887.

\VARREN O. EVANS.

\Vitnesses:

ALBAN ANDREN, RIGHD. G. BAYLDON.