US137427A - Improvement in spike-making machines - Google Patents

Description

D. EYNUN.

Spike-Making Machines.

No.137,427. PatentedApril1,1873.

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UNITED STATES DAVID EYNON, or srr, LOUIS, MISSOURI.

IMPROVEMENT IN SPIKE-MAKING MACHINES.

Specification forming part of Letters Patent No. 137,427, dated April 1,1873; application filed November 8, 1872.

, Patent were granted to me on the 3d day of January, 1871, that the angle at which the header operates may be varied during the operation of the machine, and so that the 1 headingdie, when at the limit of its forward movement, may always be at the same height, no matter what its inclination may be. tain these objects by causing the headingbar H to slide on guides q attached to quadrants M M hung to the frame of the machine, and admitting of being raised or lowered, so that the header can operate at any desired inclination without stopping the machine, (see vertical section, Figure l, of the accompanying drawing,) and by so arranging the several parts that when the header reaches the limit of its forward movement, as shown in Fig. 1,' the center of the pins by which the quadrants are hung to the frame shall coincide with the center of the pins by which the sliding boxes K are connected to the headingbar.

My present invention is applied to a machine precisely like that described in my aforesaid patent; hence it has not been deemed necessary to illustrate more of the machine than the heading-bar H, to which the usual reciprocating motion is imparted, part of the die G, on which the spike-bar is laid, and against which it is headed, part of the griping-arm B, which holds the spike-bar against the die during the heading process, and parts of the opposite side frames A and A.

In my former patent the heading-bar was arranged to slide in guides so secured to the sides of the frames that they could be adjusted to any desired inclination, not, however, without stopping the machine-a defect which I obviate by my present invention. Another defect in my former invention, and which I now overcome, was the changing of Iat- ' the height of the heading die whenever a 'change in the inclination of the heading-bar was made.

Each quadrant M has a pin, m, passing through and turning in the adjoining frame, and confined thereto by a key or otherwise. The slides K, which are arranged to swivel on the ends of arms J J projecting from the heading-bar H, are adapted to V-shaped guides on the quadrants M, and these may be caused to assume different angles by turning the quadrants on their pins m. In the present instance a pinion, L, on a shaft, N, which may be provided with suitable handles, is arranged to raise and lower the quadrants; but any other appropriate device may be used for the purpose, and any suitable mechanism may be employed for retaining the quadrant after adjustment.

Different characters of spike-heads demand different inclinations of the heading-bar; but there should be no variation in the height of the heading-die in respect to the die on which the spike-bar rests. By so regulating the -movement of the heading-bar in respect to the axes of the quadrants that when the bar is at the limit of its forward movement the said axes shall always coincide with those of the swiveling slides K, the end of the heading-die will always be at the same altitude when at the end of its stroke, no matter what may be the inclination of the headin g-bar.

I claim as my invention- 1. The combination of the heading-bar H and slides K with the adjustable quadrants M and their guides q.

2. The said slides and quadrants so regu lated in respect to the movement of the head: ing-bar that their axes shall coincide when the said bar has reached the limit of its forward movement.

Intestimony whereof I have signed my name to this specification in the presence of two 4 subscribing witnesses.

DAVID EYNON.

Witnesses:

WM. A. STEEL, HI'BERT HoWsoN.

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