US161188A - Improvement in rolls for forming the eyes of picks - Google Patents

Description

w. WU'S-TENHAGEN 8L1 Roll for Forming the Eyes No. i6l,l88.

3.Sheets--Shet1. BESLER.

of Picks, 81.0.

Patented March 23 1875.

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UNITED s lmts PATENT Qrrroa.

WILLIAM WIISTENHAGEN AND J OHN BESLER, OF PITTSBURG, PA.

IMPROVEMENT IN ROLLS FGR FORMING THE EYES OF PICKS, &c.

Specification forming part of Letters Patent No. 161, 188, dated March 23, 1875 application filed 7 January 12, 1875.

To all whom it may concern Be it known that we, WILLIAM WiisTEN- HAGEN and JOHN. BESLER, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Horizontal and Vertical Movements for Dies for Forging Picks, Axes, 85c; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying draw ing forming a part of this specification, in which Figure 1 is a plan view of a machine embodying our invention. Fig. 2 is a front view with the dies open; Fig. 3, a similar view, the dies being closed. Fig. 4 is a side view. Fig. 5 is vertical transverse section. Fig. 6 is a vertical longitudinal section; and Fig. 7 is a mandrel and sliding stripper. Fig. Sis a blank.

Like letters refer to like parts wherever they occur.

We will now proceed to describe the invention, so that others skilled in the art may make and use the same.

In the drawings, A represents the bed or table for supporting the power-shafting, provided at one end with housings B, in which are journaled the oscillating rolls or die-carriers. This housing B is generally recessed or shouldered, as at b, and provided with setscrews 1), Which bear upon the adjustable pivot-bearing, by which means the position of the bearings and dies may be controlled. (J indicates the upper and O the lower of two oscillating rolls or die-carriers, having their bearings in the boxes 0 c of housing B, and raised or lowered by the usual housing-screws D. At the points 0 c on these die-carriers are dovetailed recesses for the purpose of connecting the horizontal dies I, which may be secured and adjusted by means of keys a or similar devices. The oscillating rolls 0 G are geared at one end by the segments E, the

upper roll being driven from the power-shaft through crank-arms cfg, and the lower roll communicating motion to the lateral dies through an arm or rod, h. H H represent pivot-bearings, secured in the housings B between the boxes 0 c of'rolls O O, and are controlled by set-screws 12 so that they can be made to approach or recede from each other, according as the lateral dies require adjustment. To these bearings the lateral dies Kare pivoted, as

at i, so as to move in unison with the horizontal dies I, the dies K being operated from, the lower oscillating roll 0 through the lever d, rods h 7a 7a, and rock-shaft L, the rods 70 70 being connected to the levers Z l of the rockshaft by universal joints 0, so as to permit a lateral as well as longitudinal movement, said form of gearing being required by the movement of dies K. L is a rock-shaft journaled in the bed or table A, and provided with levers l l and l, by which it is connected to the lower and lateral dies by suitable rods.

The arm 9 and levers cl and Zare provided with means for adjusting the connection of the rodsfand h, so that the throw of the oscillatin g rolls and the travel of the horizontal and lateral dies may be varied.

The dies shown in connection with the oscillating carriers are dies for forging and forn1- ing the eyes of picks, and consist of two horizontal dies, I I, having faces concave from side to side, and slightly convex from end to end, while the lateral dies K K are convex from end to end, and grooved slightly along the middle, and are recessed, as at m 012, along the front edge to receive the arms of the blank.

The dies I I are dovetailed to the oscillating rolls or carriers 0 G, and the dies K K are pivoted or hinged to the pivot bearing-blocks H H, as before specified.

In presenting the blank to the dies a mandrel is used, of the form shown in Fig. 7, and

may be described as follows: It consists of a .rod or shaft, N, having an enlargement, a, at

one end corresponding in form to the inside surface of the eye to be formed, and is provided with a stripper, a sliding upon the shaft N, and may be forced down to drive or strip off the finished article from the mandrel. As the stripper bears evenly upon the article to be removed there is no liability of disfiguring the article. The gear-wheel of the driving-shaft is provided with a clutch of any approved form for the purpose of starting and stopping the machine.

The operation of these devices is as follows: Motion being imparted through the powershaft and connecting-rods to the oscillating and will be drawn and formed by the dies in changing to the position shown in Fig. 2.

If the lateral dies I I of Fig. 2 are employed, and a pick is being formed, the projecting portions of the pick will be received into the recesses m. The steel may be welded on and the points finally drawn out in the usual way.

Having thus described our invention, we claim and desire to secure by Letters Patent- 1. The combination of the oscillating rolls or die-carriers O C", geared by segments E, and driven by suitable power, and the lateral pivoted dies K K, the latter operated from the former by means of rock-shaft L and rods or arms h k 70, substantially as specified.

2. The combination of oscillating rolls or die-carriers0 0 having (lies I I, pivot-bearings H H, having dies K K, and suitable mechanism for operating the same, substantially as and for the purpose specified.

3. Mandrel N, provided with a sliding stripper, a, substantially as and for the purpose specified.

In testimony whereof we, the said WILLIAM WiisTENHAGEN and JOHN BEsLER, have hereunto set our hands.

WILLIAM WUSTENHAGEN. JOHN BESLER. Witnesses:

F. W. BITTER, J r., T. B. KERR.

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