US484833A - Machine for beveling heel-blanks - Google Patents

Description

(No Model.) 4 SheetsSheet 1.

F. E. WILDER. MACHINE FOR BEVELING HEEL BLANKS.

Patented Oct. 25, 1892.

NVENTEI'R:

- (No Model.)

4 Sheets-Sheet 2. P. E. WILDER.

MACHINE FOR BEVELING HEEL BLANKS. N0. 34,833. Patented Oct. 25,1892.

INVENTEFR:

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(No Model.) 4 sheets-sheet 3 P. E. WILDER.

MACHINE FOR BEVELING HEEL BLANKS.

(No Model.) 4 Sheets-Sheet 4.

F. E. WILDBR. MACHINE FOR BEVELING HEEL B LANKS.

No. 484,838. Patented 001;. 25, 1892.

LZ l WITNESSE S' I IV A NVENTEIR 4 W MMM UNITED STATES PATENT OFFICE.

FRANK E. WILDER, O'F SALEM, ASSIGNOR TO 0. M. ANGIER, OF BOSTON, MASSACHUSETTS.

MACHINE FOR BEVELING HEEL-BLANKS.

SPECIFICATION forming part of Letters Patent No. 484,833, dated October 25, 1892.

Application filed December 17, 1891. Serial No. 415,400. (No model.)

To all whom it may concern.-

Be it known that I, FRANK E. WILDER, of Salem, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Machines for Beveling or Skiving Heel-Blanks, of which the following is a specification.

This invention has for its object to provide improved means for beveling heel-blanks for use in spring-heel shoes; and it consists in the several improvements which I .will now proceed to describe and claim.

In the accompanying drawings, forming part of this specification, Figure 1 represents a side elevation of a machine embodying my invention. Fig. 2 represents a top view of the same. Fig. 3 represents an end view. Fig. 4. represents a section on line 4. 4, Fig. 2, looking toward the top of said figure. Fig. 5 represents a side elevation showing the machine at a difl'erent stage of the operation from that shown in Fig. 1. Fig. 6 represents a section on line 6 6, Fig. 5. Fig. 7 represents a section on line 7 7, Fig. 4. Fig. 8 represents a perspective view of a part of the machine. Fig. 9 represents a top view of a part of the machine. Fig. 10 represents a side View of a part ofthe machine. Fig. 11 represents a sectional view, and Fig. 12 a side View, of an appliance used in connection with the machine for cutting double blanks.

The same letters of reference indicate the same parts in all the figures.

In the drawings, a represents the base of the supporting-frame, from which rise standards a a, having bearings for the drivingshaft 1), the latter being continuously rotated by power applied in any suitable way.

0 represents the skiving or beveling knife, to which a vertical reciprocating motion is given by means of a sliding clutch and devices presently described, which co-operate with the clutch in communicating motion from the driving-shaft b to the knife. The clutch is normally disconnected from the driving-shaft, so that the knife operates only when the clutch is engaged with the shaft, such engagement being effected by the movement of a swinging heel-blank holder or carrier (1 into position to present the heel-blank 0, Fig. 7, to the knife. Said movement causes a clutch-shifting device to throw the clutch into engagement with the shaft, so that the knife is raised to bevel the heel-blank immediately after the presentation of the blank to the path of the knife, the clutch being automatically disconnected from the driving-shaft when the swinging blank-holder d is withdrawn from the path of the knife, so that the knife is made inoperative by the withdrawal of the blank-holder.

The sliding clutch comprises a sleeve e, adapted to slide on the driving-shaft, a flange e on said sleeve engaged with the clutchshifting devices, and a tooth e on said flange adapted to be engaged with a tooth e affixed to the driving-shaft. On the sleeve 6 is an arm 6 having a stud 6 said arm and stud constituting a crank, which is caused to revolve by the engagement of the. tooth c with the tooth e and imparts motion to the knife through a bell-crank lever f, which is pivoted at f to the frame of the machine. One arm of said lever is arranged to be acted on by the stud a, (see Figs. 1 and 5,) and the otherarm is pivoted at f to the knife-holder o, the arrangement being such that the crank in revolving from the position shown in Fig. l to that shown in Fig. 5 will elevate the knife and cause it to bevel the heel-blank, as shown in Fig. 7, the knife being guided and prevented from tipping or swinging loosely on the pivotf by a link f pivoted atf to the supporting -frame and at f to the knifeholder.

The knife is secured to the holder 0 by means of screws 0 0 Figs. 1 and 2, bearing on one end of the knife, and a shoulder c on the holder, against which the opposite end of the knife is held by said screws.

The swinging blank-holder d is a frame mounted to swing on a stud d on the supporting-frame and formed to receive a heelblank 0 and hold it in an inclined position relatively to the path of the knife, the arrangement of the blank-holder being such that when it is moved from the position shown in Fig. 1 to that shown in Fig. 5 it will cause the upper end of the blank to project across the path of the knife, as indicated by dotted lines in Fig. 6, so that when the knife is raised it will bevel the blank, as shown in Fig.

7. The blank-holder has an inclined rest or support d for the heel-blank, said support being a plate,having at its ends ears d supported by and adapted to swing on a rod d aiiixed to the side pieces of the frame (1 and extending across the same. The ears (1 are attached by screws d to the side pieces of the frame or holder (1, each of said side pieces havinga plurality of holes (1, Figs. 2 and 3, adapted to receive said screws and permit the adjustment of the rest (1 to any desired inclination, so that any desired bevel may be given to the heel, the ears (1 having holes d (1 arranged to coinside with the holes (1 (1 represents a clam ping-plate pivoted at d to the side pieces of the holder 01 and arranged to bear on the back of the heel-blank. Said clamp is provided at its lower end with ears d, Fig. 10, which are pivoted at (1 to arms c1 formed on a lever 01 said arms and lever being mounted to swing on the rod d. When the lever is depressed or moved from the position shown in Fig. 6 to that shown in Fig. 7, the lower end of the clamp is pressed against the back of the heel-blank and caused to firmly hold the same against the rest 61 d represents a gage for the upper end of the heel-blank, said gage being a plate having ears (1 mounted to swing on the rod d, which connects the clamp-ears d to the lever-arms d. The upper end of said plate is bent to form a lip or gage proper projecting over the upper end of the clamp in position to arrest the upper end of the blank when the latter is inserted by the operator between the support d and the clamp. The gage is yieldingly held in the position shown in Fig. 6 by a spring d Figs. 4 and 6, mounted on the rod al one end of said spring bearing on the gage. \Vhen the knife rises to bevel the heelblank, the gage is displaced, as shown in Fig. 7, by an arm 0 on the knife-holder c, said arm striking a finger (1", attached to the gage.

The lever (Z besides serving as the means foroperating the clamp (i enables the operator to move the blank-holder d from the position shown in Fig. l to the position shown in Fig. 5, thus presenting the heel-blank to the path of the knife.

The clutch-operating devices which shift the clutch and move the tooth 6 thereof into engagement with the tooth e on the drivingshaft when the blank-holder is moved to the position shown in Fig. 5 comprise a plate h,

which is rigidly attached to the supportingframe and is provided with angular slots 71. h, one end ofeach slot being diagonal to the plate and the other end parallel therewith, a slide 72, having studs 72. h entering the slots h h, said slide having at one end an ear h and at its central portion two upwardly-projectin g ears or lugs 7L5 h, which are separated by a slot or opening that receives the clutchflange e, and a longitudinally-movable rod h,'pivoted to slide in orifices in cars 72, k on the plate h, said rod being arranged so that the blank-holder d after moving to the position shown in Fig. 5 will strike one end of the rod and move the same in the direction indicated by the arrow in Fig. 2 to the position shown in Fig. 9. The rod it has a collar h aifixed to it, said collar bearing against the ear hton the plate 71. Consequently when the rod 72. is moved in the direction indicated the collar 7?], bearing against the ear h moves the plate 71?, thus causing the studs 71. to move into the diagonal portions of the slots h, so that the plate 71, is moved both endwise and laterally, the result being an oblique movement of said plate. This movement causes the lugs 72 to slide along the flange e and at the same time moves said flange laterally from the position shown in Fig. 2 to the position shown in Fig. 9, thus engaging the tooth c with the tooth 6 upon the drivingshaft. The clutch is therefore rotated by' the driving-shaft, and its crank is caused to impart motion through the bell-crank lever f to the knife-carrier, as above described.

When'the operator releases the lever d, the blank-carrier is caused bygravitation to swing back to the position shown in Fig. 1, thus releasing the rod 72, whereupon a spring 72. intel-posed between one of the ears h on the plate It and a collar h on the rod, moves the rod and the plate 7L back to the position shown in Fig. 2, thus causing the lugs lbs to move the clutch outwardly and separate its tooth e from the tooth e on the driving-shaft, so that the clutch and the knife become inoperative as soon as the blank-holder moves outwardly.

The operation of the machine is as follows: The blank-holder being in the position shown in Fig. 1, the operator inserts a blank in the holder, moving the blank upwardly along the rest or support (1 until its upper end strikes the gage al He then depresses the lever d thereby clamping the blank, and then by means of said lever swings the blank-holder to the position shown in Fig. 5, thus connecting the clutch with the driving-shaft and causing the upward movement of the knife,

the result being as already described. The operator then swings the blank-holder (1 back to the position shown in Fig. 1 and releases the lever d the clamp d being thus released, so that the blank is free to slide downwardly out of the holder into any suitable receptacle which may be provided.

I do not limit myself to the details of mechanism herein shown, and may vary the same in several particulars without departing from the spirit of the invention. Fol-instance, the blank-holder may be arranged to slide in a rectilinear direction in suitable guides instead of being pivoted to oscillate in the manner herein shown.

I am the first, so far as I am aware, to operate a clutch by the movement of a blankholder in such manner as to cause power to be communicated from the driver to a movable knife when a blank has been brought into position to be acted on by the knife. Hence I do not limitmyself to the particular construction herein shown,eitherof theblankholder, the clutch, or the mechanism for communicating motion from the clutch to the knife.

In Figs. 11 and 12 I have shown means for holding a double heel-blank 0' in such position that the knife in its upward movement will sever said blank diagonally and form two complete-spring-heels. In this case the rest or support d clamp d and lever-arms 01 are arranged as already described; but the gage for the upper end of the blank consists of a bar d fitted to slide in a socket c1 onthe clamp (i and a V -shaped gage -piece (1 formed to bear on the upper end of the double blank 0 and adjustably secured to the bar (1 by means of a cross -bar 01 having a socket (1 which is adjustable vertically on the bar 01 The bar (1 is secured to the clamp d by means of a set-screw (1 and the bar 01 is adj ustably secured to the bar (1 by means of a set-screw d The blank-holder is provided with an elf set-bar s at its rear side, said bar being arranged to bear on the outer surface of the knife-holder 0 when the blank-holder is in the position shownin Figs. 3and5,andsaidbarpre venting the knife-holder from springing outwardly while the knife is cutting the blank. The bar 8 is separated from the frame of the blank-holder by a slot or space, in which the knife-holder is free to move vertically, as will be seen by reference to Fig. 3.

The combination of a knife normally at rest, a clutch also normally at rest or inoperative, clutch-operated mechanism through which the knife is moved when the clutch is engaged with its driving-shaft, a blank-holder which is movable toward and from the path of the knife and is arranged to hold the blank in such position that the knife will form'a diagonal'or beveled end thereon, and mechanism actuated by the movement of the blankholder for engaging the clutch with the shaft is new with me, and presents the following advantages: First, there is little or no liability of injury to the operators fingers by the knife, because the knife is normally at rest, and, further, because the blankholder is away from the path of. the knife when the blank is being applied and removed, and, secondly, the position of the blank-holder out of the path of the knife and at one side of the machine when the blanks are being inserted and removed facilitates the insertion and removal of theblanks.

The arrangement of the clutch-shifting device so that it will be operated by the movement of the blank-holder to its operative position makes the machine very convenient and enables it to be rapidly operated.

The spring-pressed rod h and the plate h engaged with said rod and guided obliquely, constitute a clutch shifting or shipping device that, for convenience, I will hereinafter designate a clutch-shipper. This shipper is the best form now known to me, but I do not limit myself thereto, and may use any other suitably-constructed shipper.

I claim- 1. The combination of a knifecarrier normally at rest and provided with a knife, a continuously-running driving-shaft, a normallyinoperative clutch on said shaft, clutch-open ated mechanism through which the knifecarrier is reciprocated when the clutch is en gaged with the shaft, a blank-holder which is movable toward and from the the path of'the knife, and mechanism for engaging the clutch with the shaft actuated by the movement of the blank-holder, as set forth.

2. The combination of a knife-carrier normally at rest and provided with a knife, a continuouslyrunning shaft, a clutch normally loose on said shaft, connect-ions between said clutch and the knife-carrier, whereby the latter is moved when the clutch is engaged with the driving-shaft, a blank-holder movable relatively to the path of the knife, and a clutch shipper arranged to be operated by the movement of the blank-holder to its operative position, as set forth.

3. In a skiving or beveling machine, the combination of a movable blank holder, a movable knife-carrier provided with a knife, a continuously-running driving-shaft,a clutch normally loose on said shaft, a clutch-shipper comprising a slide or rod, such as it", normally projecting into the path in which the blankholder moves and adapted to be moved in one direction by said carrier, and connections between said slide or rod and the clutch, whereby the clutch is engaged with the shaft by said movement of the rod, and connections between the clutch and knife-carrier, whereby the knife is moved to act on a heel-blank in the holder, as set forth.

4:. A skiving or beveling machine comprising in its construction a continuouslyoperated driving-shaft, a clutch normally loose on said shaft and adapted to be engaged therewith, a movable knife-carrier provided with a knife, connections between said carrier and the clutch, through which movement is imparted to the knife when the clutch is engaged with the shaft, a blank-holder consisting of a movable frame provided with blank grasping or clamping devices, and a clutch-shipper consisting of a spring-impelled rod arranged to be moved endwise by contact with said holder, a plate engaged with said rod and adapted to be moved endwise thereby, guides which give said plate an oblique movement, and lugs or ears on the plate, engaged with a flange on the clutch, as set forth.

5. In a skiving or beveling machine, the combination of a continuously-rotated driving-shaft having a tooth affixed to it, a clutchsleeve loosely mounted on said shaft and having at one end a tooth adapted to engage the shaft-tooth and at the other end a crank, a movable knife-carrier provided with a knife, devices actuated by the clutch-crank for mov in g the knife when the clutch is engaged with the driving shaft, a movable blank-holder adapted to present a blank to the knife, and a c1utch-shipper operated by the blank-presenting movement of said holder to engage the clutch with the driving-shaft and causea movement of the knife, as set forth.

6. In a skiving or beveling machine, the combination of a continuously-rotated driving-shaft having a tooth affixed to it, a clutchsleeve loosely mounted on said shaft and having at one end a tooth adapted to engage the shaft-tooth and at the other end a crank, a movable knife-carrier provided with a knife, and a bel1-crank lever pivoted to a fixed support and connected at one end with the knifecarrier, the other end of said lever beingarranged to be moved by the clutch-crank, as set forth.

7. In askiving or beveling machine, the combination of a knife-carrier mounted to reciprocate on a supporting-frame and provided with a knife, means for reciprocating said knife-carrier, a blank-ho1der pivotally connected to the supporting-frame and provided with a blank rest or support which is inclined relatively to the movement of the knife so that the knife forms a diagonal or beveled end on the blank, a clamping-plate pivoted at one end to said blank-holder and adapted to swing at its other end, and an operating-lever also pivoted to the holder at one point and to the swinging end of the clamp at another point, as set forth.

8. In a skiving or beveling machine, the

'combination of a knife-carrier mounted to reciprocate on a supporting-frame and provided with a knife and with an arm or projection, such as 0 means for reciprocating said knife-carrier, a blank-holder pivotally blank on said support, and a gage pivoted to the blank-holder and provided with an arm, such as d", adapted to be displaced by the 1 projection or arm 0 as set forth.

9. In a skiving or beveling machine, the combination of a knife-carrier mounted to reciprocate on a supporting-frame and provided with a knife, meansfor reciprocating said knife-carrier, a blank-holder pivotally connected to the supporting-frame and provided with a blank rest orsupport which is inclined relatively to the movement of the knife, and an offset-bar arranged to engage one end of theknife-carrier to prevent springing of the knife when the blank-holder is in its operative position, as set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing-witnesses, this 9th day of December, A. D. 1891.

FRANK E. WILDER.

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