US832633A - Machine for forming brake-shoes. - Google Patents

Description

No. 832,633. PATENTED OCT. 9, 1906.

E. J. SNOW.

MACHINE FOR FORMING BRAKE SHOES.

APPLICATION nun r1112. 17. 1905.

3 sums-sum 1v ATTORNEYS rn: NORRIS Per: erayanmar, 114 c PATENTED OCT. 9, 1906.

'E. J. SNOW. MACHINE FOR FORMING BRAKE SHOES.

APPLICATION FILED FEB.17,.1905.

3 SHEETS-SHEET 2.

[III/11147 l. s

; HVVENTiJWF lay/ law fl ATTORNEYS Mimi/MES 58; 1. @X/MM omen al wu-nmcrou, n. c.

PATENTED OCT. 9,1906.

3 sums-sum s.

E. J. SNOW.

MACHINE FOR FORMING BRAKE SHOES.

APPLICATION FILED FEB. 17. 1905.

Wm m vm 7 0 0 M 4 Z I V! B Mv/ LIH W 2 6 wflm a z a l w W W Be it known that I, ELME'R J. zen of the United States, and a resident of the following is a specification.

machines for forming steel-back shoe after' the back has been,

device of this character which shall be simple and effectively perform its functions.

-view, partly in side elevation and partly in tional view showing the pin punch in its raised position. Fig. .5 is'a sec-x. tional view showing the severalfparts in their. positions after the formation 0 spring mechanism.

consisting rear or back plate 10, and t0py11, preferably;

' the top 11 4s through the UNITED LMER' J. sNo w; or MAHWAH. New, lIERsEY, ASSIGNOR iro AMERICAN;

BRAKE SHOE & FOUNDRY COMPANY, QF JERSEY CIT, NEW JERSEY, 'A CORPORATION OF NEW JERSEY? l I MACHINE. FOR F'ORIIIIZINIGI BRAKE-SHOES.

No. 832,633. Specification of grettersPaten t. v. iatented oat. 9,1906.

application the February 117. I905. SerialfN h. -2 46,005.l Y

I i p.

'1 to hold thelatter inits several different relative positions.

From the undenside 'of thetop plate 1 1 de- Jpends the well or receptacle 19, out-of wh ch eads the passageway 20 and with which u 'To all whom it may cortcerjt? SNOW, a citi- Mahwah, in the county of Bergen and State: of New Jersey, have made and invented certain new and useful Improvements in Mar;- connects an opening 21, formed iii said top chines for Forming Brake-Shoes, of which; plate.

5 'thedie-block 22,:havi a central passage or opening 23 extending iro'ugh the same, the upper cutting edge of which, in conjunction withthe lower cuttingedge of the punch 15, ",is adapte'd -tuforn'i' the hole or openin ih the steelback, as 'hereinafter described, t e disk 'punched from the back fallin or dropping through the opening-in thedie: lock into the 'well or receptacle 19 and down the inclined -.bottoin.p'late-24, Fig. 5, and out of the machine.

My invention relates to .an improvement in brake-shoes, and; more particularly to a machine for punching the, 'hole in the steel or malleable metal back of a molded in the body of the shoe.

' The object of the invention 18 toprovide ain construction and which will easily, readily/,

With these and other end in view thef'iIi-i vention consists in certain novel-featuresmfi construction and combinations "of partspas, will be hereinafter} fi' lly described, and pointed out in the claims.

In the accompanyin drawings, Fi e 1 is: a view in perspective 0 my improve device." Fig. 2 is a horizontal sectional'view thereof,i taken on the line 2 2 of Fig. 3-. Fig. 3 is a bolted-or ptherwise secured the bracket 25, -=provided with the slot 26, in which is adjustablysecured the support 27 the latter being 'i-adapted to? .be raised or lowered by being turned or rotated in the cla'ni ing-nuts 28.

.In practice one end of the s 0e 29, Fig. 3, consistigiygpf the cast body 30, having cast in or on the u per face or surface thereof the steel or ma leable metal back 31, is placed .upon the'suppo'rt 27, the latter being first vertically adjusted to the proper hei ht and also" longitudinally adjusted in the racket toward, or away from the stand 7 .in accordance with the" length of the shoe under formation, the opposite end being laced or supported on the die-block 22 an in such position that the cored openin 32 will fall directly below and in line with t e punch 15. The punch is then lowered until its cutting end rests on the back 31 of the shoe, as illus- "trated in Fig. 3. By means of a hammer, mallet, or other proper tool 33, Fig. 1, a blow is given to the punch, whereby a circular hole or opening'is cut in said back 31, the disk of metal (not shown) cut from the back falling out of the machine, as hereinbefore described. In order to' strip the;.machinethat is, "return the parts'to their normal positions, so that the finished shoe may be removedand another inserted in its place -I secfire'to' the section, the several parts being shown in their adjustments prior to the punching of: the hole in the steel back. Fig. 4 is.- ajsec-l for holhing the the opening in the steel back. Fig. 6 is a detached viewj of the pneumatic barrel forming part of the Referring to the drawings, 7 representsthei base or stand, of an inverted-box-like form,; of the side plates 8, front plate 9,?

cast in one piece and witlf the'flange 1 2,, To is bolted or otherwise secured the bracket 13, having located thereon the guide-' block 1 1, provided with a central opening same for the passage of the punch 15, the latter at one end being provided with the head or knob 16and at its lower end with a cutting edge. In this guide-block is secured the pin 17,- surrounded? by the coil-spring 18, the tendency of ,which latter is to keep the inner end of the pinfin frictional contact with the punch 15 in order cured to the inner sides or surfaces of the box or stand 7, the cylinder or barrel 35, containing the piston 36, the latter being provided Into said latter opening 21 is fitted- -To. the front plate 9 of the base or stand is four brackets or flanges 34, formed on or se with the piston-rod 37, extending upwardly through an opening formed in the top 38 of the barrel or cylinder and encircled by the coiled spring 39, one end of the latter impinging against the top 38 and the opposite end against the piston 36, the tendency of said spring being to keep the piston in its lowered position, as illustrated in Fig. 5.

Into the lower end of the barrel or cylinder 35 leads an air-inlet pipe 40, connected to any suitable source of air-pressure, said pipe being provided with a three-way cook 41, operated or controlled by the lever 42, the latter being held in its normal adjustment by the spring 43. After the hole has been punched in the steel back and the parts assume the several positions as illustrated in Fig. 5 a pull on the lever 42 will allow the air under pressure to pass through the pipe 40 and into the cylinder 35 below the piston 36, forcing the latter, with its piston-rod 37, u wardly until said piston-rod striking the lower end of the punch 15 will carry the lat ter upwardly to its normal position, as indicated in Fig. 1. Upon releasin the lever 42 it will be returned to its normal position by the spring 43, thereby so turning the cock 41 as to allow the air under pressure in the cylinder to escape. Thereupon the spring 39, which has been compressed by the upward stroke of the piston, will return the latter to its lowered position. (Illustrated in F i 5.)

As the tendency of the pistonrod in li ting or forcin the punch out of the o enin in the steel badli is to lift the shoe 0 of t e dieblock 22, I provide a clamping mechanism to hold said shoe in place during this part of the operation, this clamping mechanism consisting of horizontal bar or rod 44 the ends of which are secured to the vertical posts 45, around which are coiled the springs 46, the upper ends bearing against said rod 44 and the lower ends against the top plate 1 1 of the stand. These rods 45 pass down through openings formed in the upper late 11 of t e stand and have their lower en s linked to the arms 47, keyed to the shaft 48, mounted in the sides 8 of the stand. To one end of this shaft 48 is secured the lever 49, the free end being provided with a step 50, whereby to operate the same by foot power. .In the operation of the machine and just prior to turning on the air-pressure for stripping the operator depresses the lever 49, thereby lowering the rod or bar 44 onto the shoe, as illustrated in Fig. 5, thereby securely holding or clamping the shoe onto the die-block. The several parts are held in these positions until after the punch has been raised to its normal position, as hereinbefore described, whereupon the lever 49 being released the springs 46 will raise the bar 44 to its normal osition, and thereby so release the shoe that it may be removed from the machine and another one inserted in its place.

To recapitulate, the shoe is placed in position in the machine, the punch struck by the mallet 33, the lever 49 lowered to clamp the shoe in place, and the air-pressure turned on. Finally, the lever 49 is released and the shoe removed.

From the foregoing descri tion it will be seen that the machine is simp e and cheap to construct and can be easily, readily, and effectively operated'even by an unskilled workman.

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

1. In a machine of the character described, the combination with a stand, and a punch supported thereby, of means connected with said stand for holding one end of the shoe, a support for holding the opposite end of the shoe, said support being adjustable in a plane parallel with the movement of the punch, and means for raising the punch to its normal position, substantially as described.

2. A machine of the character described havin in combination a stand, a punch sup; porte thereby, a spring-actuated clamping mechanism for holding one end of the shoe, a bracket fixed to the stand, a support for the osite end of the shoe, said support being ad ustable in the bracket toward and from the said clampin mechanism, and being also adjustable in a pIane parallel with the movement of the punch, means for holding the punch in its adjustments, and mechanism for raising said punch to its normal position, substantially as described.

3. In a machine of the character described, the combination with a stand, of a punch supported on said stand, spring-actuated mechanism for holding one end of the shoe, a lever for operating said mechanism, an adjustable support for the opposite end of the shoe, and means contained within said stand and engaging with said punch for raisin the latter to its normal position, substantial y as described.

4. In a machine of the character described, the combination with a stand, of a punch supported by said stand, spring-actuated means for holding said punch in its several positions, a sprin -actuated bar for holding one end of said s oe, a lever for o erating said bar, an adjustable support for t e opposite end of the shoe, and pneumatically-operated mechanism contained within said stand and engaging the lower end of said punch for raising the latter to its normal position, substantially as described.

Signed at New York, borou h of Manhattan, in the county of New Yor and State of New York, this 15th day of February, A. D.

ELMER J. SNOW.

Witnesses:

GEORGE CooK, M. VAN NoRTwIoK.

Images