US325705A - John stephenson - Google Patents

Description

(No Model.)

J. STEPHENSON.

, TEAM GAR SIGNAL CORD SHEAVE.

Patented Sept. 8, 1885.

UNITED STATES PATENT JOHN STEPHENSON, OF NEW YORK, N. Y.

TRAM-CAR SIGNAL-CORD SHEAVE.

SPECIFICATION forming part of Letters Patent No. 325,705, dated September 8, 1885.

Application filed July 1, 1885.

T0 ctZZ whom it may concern.-

.Be itknown that I, JOHN STEPHENSON, a citizen of the United States, residing in the city, county, and State of New York, have invented certain new and useful Improvements in Tran1-GarSignal-Cord Sheaves, of which the following is a specification.

My invention has for its object to properly support in desirable position in relation to the pulls the signal cords or straps used in tram-cars; and my invention consists of a sheave-housing having a vertical stem and side arms bent and supporting sheaves, as fully set forth hereinafter, and as shown in the aceompanying drawings, in which- Figure 1 is aperspective view of my improved shcave-housi ng. Fig. 2 is an elevation showing my sheavehousing as arranged within a tram-car. .Fig. 3 is a side or edge view of the sheave-housing in position. Fig. 4 isa section on the line 1 2, Fig. 2.

In a train-car provided with a signal system accessible to passengers while seated the pendent pulls are suspended on the cord which operates the bell or other device. The bellcords along the upper verges of the side walls are held in position by eyes or guides alternating with pendent pulls, usually located at each pillar in the side walls. The cords are apt to stretch and sag between the widelyseparated supportingeyes, all owing the pendants to descend inconveniently low, obstructing operation of the signal, and with the friction of the cords through the eyes preventing recoil of the cord, causing the signal to be inoperative. My invention obviates these difficulties, for which purpose I make a metal housing in the form of a Y, having at the tip of each of the'two members a c a sheavewheel, b, for the purpose of carrying the cord (1, (shown in dotted lines,) which cord upholds between the pair of sheave-wheels a pendent pull, f, (dotted lines,) for the use of passengers.

To prevent the cord from shifting off the wheels, I extend the tip of each limb of the housing and return it over the cord while 011 (No model.)

the sheave-wheel, the end of the extended tip forming a palm-holder, h, for the outer end of the sheave-axle, which may be either an integral part of the housing or an independent piece.

To prevent the limbs of the housing from becoming bentor distorted, I place at the back side of each limb a lug, n, of such size and location as that a screw may pass through it to secure it to the frame of the car-body. The vertical member of the housing has screwholcs for a like purpose.

As an article of manufacture, sale, or use, I claim 1. Asheavehousing consisting of avertical body and two arms extending in opposite directions, each arm terminating in a palm holding the end of an axis, the forearm bent over to bring the palm parallel with it, and lodging the other end of the axis in the fore' arm, as and for the purpose set forth.

2. A sheave-housing with two arms bent over at their wrists, the palms parallel with the forearms and each holding asheave-wheel on an axis with one end in the palm and the other in the forearm, as and for the purpose set forth.

3. A sheave-housing with a body and two arms uplifted and bent forward at the wrists, bringing the palms parallel with the forearm, and each holding a sheave on its axis, the wrist at the bend being elevated above the sheave and formed to retain and guide an operating-cord, as and for the purpose set forth.

4. A sheave-housing with two arms, each holding a sheave-wheel, and at the posterior side,near the elbows,projecting lugs with holes for fastening-screws, as and for the purpose set forth.

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

JOHN STEPHENSON. "Witnesses:

J os. B. Srnrnnnson, STUART A. Srnrnnnson.

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