US688509A - Trolley. - Google Patents

Description

nu. 683,509. Patented nec. |o,'|9o|.

F. w. GARRETT.

T R 0 L L EY (Application Bled Dec. 1, 1899.)

(lo I'Iodel.)

A TTORNE Y.

v UNITED STATES PATENT OFFICE.

FRANK W. GARRETT, OF JOHNSTOWN, PENNSYLVANIA, ASSIGNOR" TO THE LORAIN STEEL COMPANY, A CORPORATION OF PENNSYLVANIA.v

TROLLEY.

SPECIFICATION foaming pero of Letters Patent No. 688,509, dated December 1o, 1901. Application filed December 1, 1899. Serial No. 738,752. (No model.)

To wZZ whom it may concern,.-

Be it known that I, FRANK W. GARRETT, of J ohnstown,'in the county of Cambria and State of Pennsylvania, have invented a new and useful Improvement in Trolleys, of which the following is a full, clear, and exact description,

reference being had to the accompanyingy drawings, which form a part of this specilic'ation. Y

My invention has relation to trolleys, and is designed to provide means of improved character for taking the current from the trolleywheel and conducting it to the trolley arm or pole, also, to provide means of novel character for maintaining the trolley-Wheel in engagement with the suspended conductor.

The first part of my invention consists in the-combination, with a trolley-wheel and the harp or fork in which it is journaled, of a spring attached to said wheel and revolving at its free portion in contact with the inner surface of the harp or frame, said spring forming a good conductor of electricity and making by reason of its spring-pressure good contact with the harp orfork.

The second part of my invention consists in a trolley-pole havingI therein a joint of novel character, whereby the wheel isalways maintained in a lperpendicular plane andin full contact with the under side of the conductor, notwithstanding widely-varying angular positions of .that portion of the pole which is immediately attached to the car.

The inventionalso consists in the novel construction and combination of parts, all as hereinafter described, and pointed out inthe appended claims, reference being had to the accompanying drawings, in which-'- A 1 Figure l is a front view of a trolley-wheel and harp embodying my invention.v Fig. 2 is a detail view of the spring-contact device detached; Figs. 3 and 4, similar views showing modified ormsof the spring; Fig. 5, a detail view of a portion of a trolley-pole having my improved joint. Fig. 6 is a similar view showing a modification. The letter A designates the trolley-'pole having the usual fork or harp A. B is the usual grooved trolley-wheehwhich is journaled in said harp in any suitable manner. C is a spring which is secured to the side face contact with the conductor instead of assum- Figs. l and 2 it is shown as consisting of a flat strip whose free end portion is bent to form a shoe portion C for contact with the Washer D andperforated for the wheel-spindle. One or more of these springs may be employed. In Fig. 4 the spring is shown as being of cup-form and is designed to be secured to the wheel concentric with its spindle. Fig. 3 shows a spring somewhat like Fig. 2, but with a long spring-loop C2 and a single bend. These springs may be employed at one side of the wheel or they may be used at both sides.

The second feature of my invention is shown in Figs.v 5 and 6, and consists in interposing between the lower portion of the pole and the wheel-carrying portion a joint in the form of a rectangular frame, composed of a lower or base bar E, a vparallel link-bar E', and connecting-side links F, with springs G connected across the langles of said bars and links. The base-bar E is centrally attached to the upper end of the lower or main section of the trolley-pole and extends transversely ofv the the `trolley-wheel. The upper or wheel-car Y rying portion of the pole is attached to the central portion ofthe upper bar E. The

springs G are of sufficient strength to maintain the frame against collapse, while at the portion of the pole may considerably change its angularl position. In turning a curve, for instance, the wheel will thus maintain its full ing a-tilted position. Ithus not only get the advantage of a full contact between the wheel and the conductor at all times, but I very greatly reduce the tendency of the wheel to leave the wire.

` l? designates curved guards or fenders be- IOO low the joint to prevent the latter from injuring the span-wires should the wheel leave the cond uetor. In the modification shown in Fig. 6 the frame forms practically the entire length of the pole.

I do not Wish to be limited to the non-essential details shown and described, as these may be changed without departing from the spirit of my invention.

Having thus described my invention,what I claim, and desire to secure by Letters Patent, is

l. The combination with a trolley-wheel, and the harp or frame in which it is journaled, of a current-conducting device revolving with said wheel and forming an electrical connection between the wheel and harp, said device consisting of a piece of spring material bent upon itself intermediate of its ends, one of which is secured tothe side of the wheel and the other of which has a. bearing engagement with the inner side of the harp or frame.

2. In a trolley, a lower pole-section having transversely-separated bearings at its upper end, an upper section having similar bearings at its lower end, links connecting the said bearings, and. springs restraining the move* ment of said links.

3. A trolley-pole formed in two sections united by a transverse rectangular frame having side links, and springs connected to said links and to the xed sides of the frame.

In testimony whereof I have alxed my sig nature in presence of two witnesses.

FRANK W. GARRETT Witnesses:

MYRTLE E. SHARPE, H. W. SMITH.

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