US229009A

US229009A - theodobe a

Info

Publication number: US229009A
Authority: US
Publication date: 1880-06-22
Anticipated expiration: 1897-06-22

Description

T. A. B. P-UTNAM. Electric Railroad Signal.

No.,22 9,0O9. v Patented June 22,1880.

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UNITED STATES "PATENT OFFICE.

. THEODORE A. B. PUTN AM, OF NEW YORK, N. Y.

ELECTRIC RAILROAD-SIGNALS.

SPECIFICATION forming part of Letters Patent No. 229,009, dated June 22, 1.880.

Application filed August 21, 1878.

To all whom it may concern:

Be it known that I, THEODORE A. B. PUT- NAM, of New York, N. Y., have invented an Improvement on a certain patent granted to me September 19, 1876, numbered 182,384., for Electro-Magnetic Railway-Signals, of which the following is a specification.

The nature of my improvement consists of a new mode of depressing a lever operated by the wheel of a locomotive.

Figure 1 is a view of the lever complete. Fig. 2 is an end view of the action of the same. Fig. 3 is a side view of the same.

My invention consists of two lever-arms, A A, of suitable size and strength, placed suitably parallel with the rails to receive the impact of a locomotive-wheel and in contact end to end. The two arms A A are pivoted together at their point of con tact to one end of a vertical bar, B, the whole forming a double lever of the third kind operated from either end to depress the bar B for the purpose of further mechanical movements.

The bar B is placed in guides so as to have a rising-and-falling movement, bearing on a lever-arm, as F, Fig. 3, Sheet 1, Patent No. 182,384, and Fig. 2 of annexed drawings, operatin g the mechanism required. The free ends of A A are confined by a pin workingin a slot made in A A. Suitable guides o o are placed on each side of the levers A A, also serving gravel or snow drawings, raised for electrical contact for the same period of time.

t I also claim the privilege of operating levers by a locomotive-wheel impacting on a rail bent vertically upward, the pressure of the wheel hearing such rail to a straight line precisely as the two arms A A, herein described, operate, and of which the bent rail is substantially only another form.

I claim- The two lever-arms A A constructed substantially as described, in combination with the bar B, guides c, and springs a, for the purposes as herein described and set forth.

THEODORE A. B. PUTNAM.

Witnesses:

A. B. WOODHEAD, M. G. TAYLOR, Jr.