US278940A

US278940A - William hadden

Info

Publication number: US278940A
Authority: US
Publication date: 1883-06-05
Anticipated expiration: 1900-06-05

Description

(No Model.)

W. HADDEN.

ELECTRIC RAILWAY SIGNAL. No. 278,940. V Patented June 5,1883.

INVENTOR WITNESSES z p/wb df ATTORNEYS.

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UNITED STATE ATENT owm;

\VILLIAM HADDEN, OF BROOKLYN, ASSIGNOR TO THE AMERICAN BAILWVAY SIGNAL. COMPANY, OF NEW YORK, N. Y.

ELECTRIC RAILWAY-SIGNAL SPECIFICATION forming part of Letters Patent No..278,940, dated June 5, 1883,

Application filed August 26, 1882. (No model.)

To all whom it may concern Be it known that 1, WILLIA HADDEX, of Brooklyn, Kings county, State of New York,

'have invented a new and Improved Railway- Signal, of which the following is a full, clear, and exact description.

My improvement relates to the class of railway-signals employing electricity as a motive agent and using movable banners for giving signals.

The improvement consists in a divided ban nor the two halves of which are attached to pendulous arms operated by electro-magnets.

The object of the invention is to reduce the motion of the armatures of the electro-magnets, so as to admit of having them in the stronger portion of the magnetic field.

In the drawing, A is a signal-box having the 'ope'ning B, through which is displayed either a clear white light or a light modified by the bisected banner 0. The halves a a of the banner C are attached to the ends of the levers b b, -fulcrun1ed on the pivot c and capable of swinging freely, so as to close the halves of the banner over the opening B, or separate them, so as to completely uncover the opening B, as shown in the drawing. The upper and shorter arms, (I d, of the levers I) b are connected by short rods 0 c with the tubular armature-leversff, pivoted at g g, and each carrying an armature, 71. Each armature is within the influence of an electromagnet, D, and the electro-magnets are connected in the signal-circuit,

in which are placed the necessary circuit-break ers. The halves of the banner 0 close together 3 by their own gravity to give the signal, and reiii ain closed so long as the electric circuit is open. Then the circuit is closed the armatures h are drawn toward the magnet D, and through their connections move the levers b b, so as to separate the halves of the banner and obscure them, leaving the opening B uncovered. By making the banner in halves I re duoe the motion of the armatures employed to operate the signal, so that'a smaller current 5 will suflice to operate it, and by employing tubular armature-levers I avoid the inertia of a large body of metal and render the signal more sensitive to the electric current.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1 1. In a railway-signal, the divided pendu lous banner, in combination with the electromagnets and tubular armature-levers, as here- 5 5 in specified.

2. Inarailwaysignal, the combination, with the box A, provided with the aperture B and the electromagnets D of the levers b b, the parts a a of the banner 0, secured to the lower ends of-said levers, the connecting-rods e e, and the armature-levers ff, substantially as herein shown and described.

WILLIAM HADDEN.

Witnesses:

C. SEDGWIOK, A. LURCOTT.