US531758A

US531758A - Horseshoe-machine

Info

Publication number: US531758A
Authority: US
Publication date: 1895-01-01
Anticipated expiration: 1912-01-01

Description

2 Sheets-Sheet 1 {No Model.)

W. D. YOUNG.

HORSESHOE MACHINE.

No. 531,758. Patented Jan. 1, 1895.

f 7 g NN (No Model.) 2 SheetsShet 2. W. D. YUUNG.

HORSESHOE MACHINE.

Patented Jan. 1, 1895.

INVENTOR WIT" 53555 Unrrnn STATES PATENT @rmon.

XVILLIAM D. YOUNG, OF INGRAM, PENNSYLVANIA.

HORSESHOE-MACHINE.

SPECIFICATION forming part of Letters Patent No. 531,? 58, dated January 1, 1895. Application filed February 17, 1894. Serial No. 500,508. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM D. YOUNG, of Ingram, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in IIorseshoe-hlachines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a plan view of a horse-shoe machine provided with my improved device. Fig. 2 is a vertical longitudinal section on the line II-II of Fig. 1, showing the mandrel in its retracted position; and Fig. 3 is a similar section showing the mandrel in its most advanced position.

My invention is designed to obviate the difficulty heretofore encountered in the use of machines for bending and shaping horse shoes. In the use of such machines, after the blank has been bent and the horse-shoe formed by the action of the moving mandrel and lateral dies, it sometimes happens that on withdrawing the mandrel the blank does not come freely with it, but is held by friction against the plate of the machine, so that the shape of the blank is distorted and spoiled. To obviate this I provide the mandrel with a blank-holding device, which acts to engage the front side of the blank, so that when the mandrel is pulled back, after the bending operation, it will draw the blank positively with it.

In the drawings I show my improvement applied to a machine of well known construction, and I shall so describe it, but I wish it to he understood that the invention is not limited thereto, since my improved device may be applied to machines otherwise constructed.

In the drawings, 2 represents the table of the machine on which the blank 3 (a bar of iron or steel) is laid.

a are the anvil or guide blocks against which the end portions of the blank bear and between which they are bent by the advance of the mandrel.

5, 5, are end-stops, by which the blank is centered in position.

6, 6, are bending levers carrying dies 7 at their ends and constituting a die by which the blank is bent around the mandrel. These levers are pivoted at points 8 and are actuated by rods and levers 9 and 10, the levers being engaged by heads 11 on the moving head 12 of the machine.

13,13, are die or swage blocks, by which the end portions of the blank are engaged and swaged into the desired shape before the bending operation begins.

14 is the mandrel secured to the end of the bar 14', which is set at the middle of the longitndinally moving head 12. This mandrel is adapted to engage the middle portion of the blank between the blocks 4, 4. In advance of the mandrel is a hook 15, whose shank is preferably made in the form of a yoke, and is pivoted on the horizontal pivot 16, back of the mandrel, the pivot being set in a longitudinally adjustable block so as to permit adjustment of the hook to suitable blanks of different width.

The operation of the machine is as follows:-The blank having been set in the position shown in Fig. 1, is first engaged and swaged by the die-blocks 13. Then the head 12 carrying the mandrel 14 advances, engages the blank and bends it into U'forrn between the blocks 4. In the advance of the mandrel toward the blank, the hook 15, engaging the rear side of the blank, rides over the same, and then drops on the front side of the blank. When the mandrel has reached about the limit of its stroke, the levers 10 are engaged by the heads 11, and the bending levers 6 are moved inwardly thereby, so that the dies at the ends thereof shall engage the end portions of the blank and shall press them inwardly against the sides of the mandrel, the parts being then in the position shown by dotted lines in Fig. 1, and by full lines in Fig. 3. The operation of bending and shaping the blank is then completed. When the moving head 12 recedes, the levers 6 are drawn back by a retracting spring 17, and the blank is retracted with the mandrel, the hook 15, which fits at the rear side of the blank, drawing it back by a. positive action, and preventing it from sticking and from being distorted, as above explained.

The advantages of my invention will be appreciated by those skilled in the art.

Within the scope of my invention as defined in the claims, many modifications in the form,

construction and arrangement of the parts may be made by the skilled mechanic, since What I claim is- 1. In a horse-shoe machine, the combination of a mandrel around which the blank is bent, and a bending die, means for causing their approach and separation, and a blankholder arranged to engage the front side of the blank and to hold the same to the mandrel during the separation of the mandrel and die; substantially as described.

2. In a horse-shoe machine, the combination of a moving mandrel around which the blank is bent, and a bending die, means for causing their approach and separation, and a blank-holder arranged to engage the front side of the blank and to hold the same to the mandrel during the separation of the mandrel and die; substantially as described.

3. In a horse-shoe machine, the combination of a moving mandrel around which the blank is bent, and a bending die, means for causing their approach and separation, and a vertically movable blank-holder or catch carried with the mandrel, adapted during the advance of the mandrel to ride over the blank and to engage the front side thereof, whereby the blank is held to the mandrel during the separation of the mandrel and die; substantially as described.

4. In a horse-shoe machine, the combination of a moving mandrel around which the blank is bent, and a bending die, means for causing their approach and separation, and a pivoted vertically movable blank holder or catch carried with the mandrel, adapted during the advance of the mandrel to ride over the blank and to engage the front side thereof, whereby the blank is held to the mandrel during the separation of the mandrel and die; substantially as described.

In testimony whereof I have hereunto set my hand.

. WILLIAM D. YOUNG.

W'itnesses:

W. B. OORWIN, H. M. CORWIN.