US242535A - Machine for bending horseshoe-blanks - Google Patents

Description

F. nonne ze e. s. Leone. Machine for Bending Horseshoe Blanks No. 242,535. Paeemed lun-e 7.1881.

(No Model.)

m5 nu:

D; im Elf-"im 2 sheets-sheet 1.

N. PETERS. Pnum-mhognpher. wamum. D. C.

(No Model.) 2 Sheets-Sheet 2..

lF.1OLUB 8v C. S. LOCK. Machine for Ben-ding Horseshoe Blanks.

No. 242,535. Patented June 7, 188i.

IIIIIIIIIIIIIIIIIIIM I'! fill IHIIIIIIIII- lk',

N4 PETERS. Pnuwmhagnphnr..wnhmgmn. DV C.

IINirnn STATES PATENT Orifice.

FRANK HOLUB AND CHARLES S. LOCKE, OF CHICAGO, ILLINOIS.

MACHINE FOR BENDING HORSESHOE-BLANKS.

SPECIFICATION forming part of Letters Patent No. 242,535, dated June 7, 1881.

Application filed September 20, 1880. (Nov model.)

To all whom it may concern Be it known that we, FRANK HOLUB and CHARLES S. LocKE, of Chicago, in the county of Cook and State ot' Illinois, have invente-d certain new and useful Improvements in Machines for Bending HorseshoeBlan ks, of which the following is a specification.

In forming horseshoe-blanks by machinery the toe-calk is usually formed iiush with the front side of the blank, so that when the blank is bentthe front ot' the toe-cal k is curved and is ush with the curved frontend of the shoe, and is thus unlike hand-made shoes, the toecalks of which are usually straight.

It is the object of our. invention to bend a machine-made horseshoe-blau k, and in the process of bending to straighten up the toe-calk and swage it a little back from the front edge of the bent blank, as shown in Fig. 9, as if it were made by hand. Our machine is capable of so bending the blank and shaping the toecalk, when the blank is formed with the toecalk Hush with its front side, as above stated; but we have devised a machine, for which we have made application for Letters Patent, for forming a horseshoe-blank with its toe-calk a little back of the front edge of the blank, as shown in Fig. 8, and that is thef sort of blank we particularly contemplate bending and swaging in the present machine.

In the accompanying drawings, which illustrate our invention, Figure l is a plan view. Fig. 2 is also a plan view of one end of the machine, showing the bending-jaws and bending-die in a different position. Fig. 3 is a side elevation. Fig. 4 is a longitudinal central see tion on the line 4 4 of Fig. l. Fig. 5 is a transverse'section on the linef5 5 of Fig. l. Fig. 6 is a transverse section on the line 6 6 of Fig. l. Fig. 7 is a perspective view of the under side of the bending-die. Fig. 8 is a plan view of the blank, and Fig. 9 is a plan view of the bent blank.

A indicates the bed of the machine, which may be supported in any suitable solid framework. Within the center of this bed is a reciprocating plunger, B, working in suitable guideways, C, and carrying upon its outer end a bending-die, D, and a toe-calk-swaging die,

E. This plunger is actuated by mea-ns of the heavy crank-shaft F and the pitman Gr, to which motion may be given by any suitable prime mover.

H II indicate bel'lding-jaws, the function of which is to partially close around the bending-die, clamping the horseshoe-blank, which is forced between them by the plunger. rIhese jaws are pivoted at I I, and provided with guide-pins K K, which project beneath them into suitable guide-slots in the table. They are also provided with friction-rollers L L, which bear against the horscshoe-blankin the process of bending.

M M indicate friction-rollers on the outside of the jaws, against which bear the sliding cams N N, actuated by the rods or bars O O, which are reciprocated at proper intervals by cams P P upon the main driving-shaft.

Q, indicates a liXed but adjustable die or plunger, coincident with the calk-swagin g die E. This plunger is made adjustable by means ofthe heavy set-screws, (clearly shown in Figs. 1,2, and 4 of the drawings,) as will be understood without further explanation.

The operation of our machine is as follows: Assuming the bending-jaws to be open and the bending-die D to be retracted, as shown in Fig. l, the blank is placed in position before the jaws and in front of the bending-die, as clearly shown in Fig. l. A half-revolution of the driving-shaft will force the blank between the dies and curve it around the bending-die, its heel portions being last bent by the abrupt action of the sliding cams N N at the same instant that the calk is swaged by the last part of the forward thrust of the plunger. As the rotation ot' the driving-shaft continues the bending-die carrying the bent blank will be retracted, thejaws opened, and as the die comes over the open space in the center of the table into the position shown in Fig. 1 the shoe will drop 0H into any suitable receptacle; or, if any difficulty is found in releasing it by gravity, any ordinary appliance for picking it off from the die may be employed. conformation exhibited in Fig. 9, the toe-calk being straight and not flush with the front The finished bent blank will have the A edge of' the shoe, as is usual with maehinetoe-calk-swaging die E and the adjustable made bent horseshoe-blanks, but: being like a plunger Q, substantially as described.

hand-made blank. FRANK HOLUB.

Having thus described our invention, what CHARLES S. LOUKE. 5 We claim as new, und desire to secure by Let- VitneSSeS:

ters Patent, is- CHARLES W. STAEHLE,

The bending-die D, in combination with the GEO. VHITTIER.

Images