US1952960A - Finishing tool - Google Patents

Description

March 27, 1934. J wos 1,952,960

FINISHING TOOL Filed March 23, I933 2 Sheets-Sheet 1 March 27, 1934. J. WOSTL FINISHING TOOL 2 Sheets-Sheet 2 Filed March 23, 1933' Patented Mar. 27, 1934 UNITED STATES FATE OFFICE Application March .23,

9 Claims.

This invention relates to a finishing tool which is particularly adaptable for use in finishing or burnishing the edges of shoe soles, heels and the like.

Heretofore it has been customary to employ various hand manipulated tools for this finishing operation or a burnishing wheel which is attachable to a conventional shoe finishing machine for rotation of the wheel. In order to properly finish or burnish soles and heels of different thicknesses, it has been customary to provide separate burnishing wheels, each of which has a burnishing surface of the proper width to accommodate the particular "sole. or heel thickness. Thus each machine is supplied with perhaps a dozen or more different burnishing wheels in order to take care of the work usually encountered in finishing ladies, mens and childrens shoes, the soles and heels of which are of different thicknesses.

It is an object of the present invention to provide an attachment for a conventional shoe finishing machine in the form of a burnishig tool which is adjustable to conform to the various sole and heel thicknesses, thereby eliminating the necessity of using a number of separate finishing wheels.

The invention also resides in part in a novel mechanism for effecting such adjustment of the burnishing tool.

A'still further object of the invention is to provide an adjustable burnishing tool wherein the adjustment of the tool is positively and quickly accomplished.

The invention further contemplates the adjustment of the tool either at rest or when in operation as desired.

A still further object of the invention is to provide a novel support for the finishing tool whereby the finishing tool may be applied and adjusted to various types of finishing machines well known in the art.

Other and further objects and advantages of the invention will be hereinafter set forth and the novel features thereof defined by the appended claims.

In the drawings:

Fig. 1 is a front elevation of the finishing tool, the same being shown applied to a conventional finishing machine;

1933,.Seria1 No. 662,351

Fig. 4 is a sectonal view taken approximately on the line 4-4 of Fig. 1;

. Fig. 5 is an enlarged detail perspective view of the operating lever for effecting adjustment of the finishing tool, and

Fig. 6 is a sectional view taken approximately on the Inc 6-6 of Fig. 1.

Like reference characters denote corresponding parts in the several figures of the drawings, wherein l designates theshaft or spindle of a conventional shoe finishing machine, which shaft generally carries various bufiing wheels,sanders, etc, (not shown). This shaft is suitably journalled in the frame of the finishing machine, a portion of which is generally d'esignatedZ in the drawings, and is driven in the usual manner well known in the art. 2

My finishing tool. attachment embodies 'pri-' marily a sleeve-like member 3 which isadapted tobe secured on the projecting end of the shaft 1' by means of a set screw 4 or in any suitable manner. The sleeve is provided with a plurality of longitudinally extending grooves 5 in the outer peripheral surface of the same; these grooves be-. ing the usual grooves found in. the well known burnishing or finishing tools of this type. "The peripheral-surface of the sleeve intermediate the grooves constitutes the. burnishing surface or area. Positioned on the sleeve 3 is a second sleeve 6 which is suitably secured to sleeve 3 for rotation therewith as by splines 7, the splines being received in suitable longitudinal channelsS in sleeve 3 for permitting longitudinal movement of the outer sleeve 6 relatively to the inner sleeve. The end of the outer sleeve 6 is provided with a peripheral flange '9, which serves to functionin a manner to be hereinafter more fully described; and also'a' bevelled edge 10 having grooveslll' therein conforming to the usual construction in the well known one-piece individual burnishing wheels.

The mechanism for longitudinally adjusting the sleeve 6 on the sleeve3 will now be described; An operating yoke 12 issuitable secured to the sleeve 6 as by means of a ring 13 surrounding the sleeve 6'and seated in a channel formed therein. If desired, the ring 13 may be fitted to the sleeve by machining down the sleeve 6 to a size corresponding to the interior diameter of the ring, and a retaining flange or ring 14 may be applied behind the ring and secured to the sleeve in any suitable manner. The ring 13 is fixedly connected to the yoke 12 as at 15 and is held against rotation during rotation of the sleeves 3 and .6. If desired, antifriction rings may-be provided intermediate the ring 13 and the sides of the channel formed in sleeve 6 or the retaining flange 14. Such an antifriction ring is shown at 16. Rigidly connected to the stem 17 of the yoke 12 as at 18 is a guide 19 having at its free end a slot 20 formed therein. This guide cooperates with a guide bracket generally designated 21. The bracket is in the form of a block 22 having secured thereto at its ends substantially U-shaped bearing blocks 23 for reception of the guide 19.

A pin or screw 24 having a flange or head 25 extends through the slot 26 in the bar 19 and is secured to the block 22, the pin serving to guide the bar 19 in its movements in the bracket 21. Secured to the bracket 21 at the rear of the bar 22 as by screws 26 is an arm 2'7 forming a. bearing support for an operating lever 28. 28 is pivotally connected intermediate its ends as at 29 to one end of the link 30, the link'in turn being pivotally connected at its opposite end to the lower extremity of the yoke stem 1'7 as at 31.

Passing now to the mechanism for maintainingthe operating lever 28 in the various adjusted positions of the sleeve 6, there is provided a toothed segment 32 which is fixed to the lower edge of the guide bracket block 22 as at 33. This segment cooperates with a corresponding toothed segment 34 or looking member carried by the operating lever 28. The latter toothed segment is provided with a stem 35 for longitudinal movemerit in a guide block 36 secured to or formed on the operating lever 28. A spring 37 extends intermediate the guide block 36 and the toothed segment 34, the spring surrounding the stem 35 and normally maintaining the two segments in engagement to. lock the operating lever in adjusted position. If desired, the segment 34 may be provided with a projection 38 which is adapted to extend intoia channel or groove 39 formed in the rear face of the operating lever and serving to facilitate guiding segment 34 in its movement to be hereinafter described.

To disengage the segments the operating lever is provided with a handle or control knob 40 from which extendsa stem 41 adapted to pass through the free end of the operating lever 28, the stem 41 being turnable in the lever. On the free extremity of the stem 41 is secured a washer 42 in any suitable manner as by a pin 43. One end of a link 44' is eccentrically connected to the washer 42 as by screw 45, the opposite end of the link being connected to the segment 34 as by screw 46. The link is sufficiently loose on the screws to enable movement of the parts.

The foregoing mechanism is intended to be secured to a convenient point on the frame of a conventional shoe finishing machine, and for this purpose I have shown a bracket in the formbf a plate or block which is adapted to be suitably bolted to the frame as by a bolt 51. Supplemental securing means generally designated 52'may'be employed to increase the rigidity of the bracket" as desired. Extending from the plate or block 50 is a bolt 53 which is adapted to I carryan' arcuate shaped arm 54, the other end ofthe arm being suitably secured to the block 22 of the guide bracket 21 as by a bolt55. The arm 54 is preferably provided with elongated slots 56 and 57 through which the bolts 53 and extend '3 to facilitate the application of the attachment to various makes of finishing machines, the slots serving to provide both vertical and lateral adjustrnent of the operating mechanism for the burnishing tool toproperly position the parts.

In addition, these slots provide a certain latitude The lever in positioning the supporting block or plate 50. In these burnishing tools, there is usually provided some sort of friction device which is adapted to heat the burnishing tool and thereby facilitate its burnishing action. These friction devices are generally in the form of a block of hard fiber, wood or the like, which are maintained in engagement under pressure against a suitable surface of the burnishing tool, customarily a flange from which the heat is transmitted through the tool to the burnishing surface of the same.

I have shown such a device for my attachment which has the form of a block 60 mounted on or integrally formed with the ring 13. An adjusting screw 61 is provided to exert pressure on a block 62 of hard fiber, hard wood or the like, and maintain the same against the flange 9 of the sleeve 6. This material is provided with a projection 63 extending into the block 60 for cooperation with the screw and to maintain the same relatively stationary, it being understood that the ring 13 is normally stationary while the sleeve 6 rotates with the sleeve 3 and shaft 1. The heat created by the friction between the material 62 and the flange 9 is transmitted to the burnishing surface of sleeve 3.

From the foregoing, the operation of the device should be apparent and may be briefly summarized as follows:

It is to be understood that the sleeve 3 is secured to the shaft 1 for rotation with the shaft and that this sleeve is provided with the burnishing surface at. its free end. To adjust the effective width or area of the burnishing surface it is only necessary to turn the knob 40 in a clockwise direction (in Fig. 1) thereby disengaging the movable toothed segment 34 against the action of spring 3'7 from the stationary segment 32. After such release of the locking segments, the operating lever may be moved to the right or left as desired while holding the knob 40 in its turned position for releasing the segments. Thus the knob serves both to operate the locking mechanism as well as to enable swinging of the lever to move the sleeve 6 to cover more or less of the burnishing surface of sleeve 3. In the view shown in Fig. 1, swinging the knob and lever to the right will move the sleeve 6 to uncover more of the burnishing surface and increase the effective burnishing area for the burnishing of the edges of thick soles or hee1s.. Corresponding movement to the left decreases the effective burnishing area for use on thin soles and low heels, such as are found in womens and childrens shoes or dress shoes. It will be apparent that the adjustment may be effected either while the ma chine is at rest or during operation of the machine, in which latter event the shaft 1 is rotating.

It is to be understood that while a number of the parts of the mechanism above described and as shown in the drawings are referred to and shown as being secured together by screws,'I do not wish to be limited to the use of screws since it should be apparent that pins or suitable projections might be provided and integrally formed on the various parts as desired. Likewise, where certain of the parts are shown as being made up from several separate members, they may be formed in one piece as desired so long as the construction is such that the various elements may be properly assembled.

While the specific details of construction have been herein shown and described, the invention is not confined thereto as alterations may be made without departing from the spirit thereof as defined by the appended claims.

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

l. A finishing tool of the class described, comprising a rotatable member having a burnishing surface, means for varying the effective area of said burnishing surface, said means including an adjustable member'on said rotatable member and movable to cover more or less of said burnishing surface, a yoke connected to said adjustable member, a guide mounted on said yoke and shiftable with the latter, means to slidingly receive said guide, an operating lever connected to said yoke, and instrumentalities cooperating with said guide receiving means for maintaining said operating lever in the various adjusted positions of said adjustable member.

2. A finishing tool of the class described, com prising a rotatable member having a burnishing surface on the periphery thereof, a sleeve on said rotatable member and rotatable therewith, said sleeve being longitudinally adjustable on said.

member to cover more or less of said burnishing surface whereby to vary the efiective area of said surface, and instruinentalities for adjusting said sleeve, said instrumentalities including a ring about said sleeve, said sleeve being rotatable in said ring but relatively immovable longitudinally in said ring, a yoke fixedly connected to said ring, a guide bar rigidly connected to said yoke, a guide bracket cooperating with said guide bar for straight line motion of the yoke, an operating lever pivotally carried by said bracket, a link pivotally connected at one end to said yoke and at the other end to said operating lever, and means for releasably locking said operating lever in the various adjusted positions of the same.

3. A finishing tool of the class described, comprising a rotatable member having a burnishing surface, and means for varying the effective area of said burnishing surface, said means including a member mounted on said rotatable member and movable longitudinally thereof to cover more or less of said burnishing surface, a pivotal operating lever for effecting such longitudinal movement, and means intermediate said operating lever and said longitudinally movable member for transmitting pivotal movements of said lever to said longitudinally movable member, said last mentioned means being connected to said longitudinally movable member.

4. A finishing tool of the class described, cornprising a rotatable member having a burnishing surface on the periphery thereof, a sleeve on said rotatable member, said sleeve being adjustable on said member to cover more or less of said burnishing surface whereby to vary the effective area of said surface, instrumentalities for adjusting said sleeve, said instrumentalities including an operating lever, a support therefor having a pivotal connection with said operating lever, means for connecting said operating lever to said adjustable sleeve, means for positively maintaining said operating lever in various positions of adjustment of said sleeve, said last mentioned means including a stationary toothed segment carried by said operating lever support, a locking member movably carried by. said operating lever and normally engaging said toothed segment, and means on said operating lever for disengaging said movable member from said segment to enable adjustment of said sleeve by said operating lever.

5. A finishing tool of the class described, comprising a rotatable member havinga burnishing surface on the periphery thereof, a sleeve on said rotatable member, said sleeve being adjustable on said member to cover more or less of said burof said sleeve, said last mentioned means including a stationary toothed segment carried by said operating lever support, a locking member movably carried by said operating lever and normally engaging said toothed segment, means on said operating lever for disengaging said movable member from said segment to enable adjustment of said'sleeve by said operating lever, said last mentioned means comprising a control member turnably carried by said operating lever, and a pivotally connected at one end to said movable locking member and at the other end pivotally and eccentrically connected to said turnable member.

6. A finishing tool of the class described, com prising a rotatable member having a burnishing surface on the periphery thereof, a sleeve on said rotatable member, said sleeve being adjustable on said member to cover more or less of said burnishing surface whereby to vary the effective area of said surface, instrumentalities for adjusting said sleeve, said instrumentalities including an operating lever, a support therefor having a pivotal connection with said operating lever, means for connecting said operating lever to said adjustable sleeve, means for positively maintaining said operating lever in various positions of adjustment of said sleeve, said last mentioned means including a stationary toothed segment carried by said operating lever support, a locking member movably carried by said operating lever, a guide lug extending from said locking member, said operating lever having a guide channel therein for receiving said guide lug, a stem extending from said locking member, a guide passage in said operating lever for slidably receiving said stem, said stem, passage, guide channel, and lug being positioned for guiding the movements of said locking member longitudinally-with respect to said operating lever, and means on said operating lever for effecting such longitudinal movement to cause engagement of said locking member with and disengagement from the stationary toothed segment aforesaid.

'7. A finishing tool of the class described, comprising a rotatable member having a burnishing surface on the periphery thereof, a sleeve on said rotatable member, said sleeve being adjustable on said member to cover more or less of said burnishing surface whereby to vary the effective area of said surface, instrumentalities for adjusting said sleeve, said instruinentalities including an operating lever, a support therefor to which said operating lever is pivotally connected, means for connecting said operating lever to said adjustable sleeve, means for positively maintaining said operating lever in various positions of adjustment of said sleeve, said last mentiined means including a stationary toothed segment carried by said operating lever support, and a locking member movably carried by said operating lever and normally engaging said toothed segment, and means on said operating lever for disengaging said movable memberirom said segment to enable adjustment of said sleeve by said operating lever, said last mentioned means comprising a control member turnably carried by. said'operating lever, a link pivotally connected at one end to said movable locking member and at the other end pivotally and eccentrically connected to said turnable member. 7

8; An attachment for shoe finishing machines and the like comprising a finishing tool including a rotatable member adapted to be secured to the usual shaft of said finishing machine, said rotatable member having a burnishing surface on the periphery thereof, means for varying the effective area of said burnishing surface, said arm having elongated slots in the opposite ends thereof, said arm being connected at one end to the bracket and at the other end to the sleeve adjusting instrumentalities, the slots serving to enable vertical and lateral adjustments of said sleeve adjusting instrumentalities for proper alignment thereof relatively to the finishing toool.

9. A finishing tool of the class described, comprising a rotatable member having a burnishing surface on the periphery thereof, a sleeve on said rotatable member and rotatable therewith, said sleeve being longitudinally adjustable on said member to cover more or less of said burnishing surface whereby to vary the effective area of said surface, a flange on said sleeve, a friction block mounted on said sleeve and held against rotation during rotation of said sleeve with said rotatable member, said friction block being frictionally engageable with said flange, means for applying pressure to said friction block, means for adjusting the pressure independently of the position of said sleeve on said rotatable member, and instrumentalities for longitudinally adjusting said sleeve on said members.

JOHN WOS'I'L.

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