US797342A - Trolley-wheel. - Google Patents

Description

No. 797,342. PA'I'ENTED AUG 15, 1905. 1:". En BRYAN.

TROLLEY WHEEL.

APPLIGATIOH FILED D136. 24, 1904.

FRANK l3. l-iltYAlfl, OF MILES, O l-HO Tl tmtmtuliiY wblffilma No. verses.

Specification of Letters Patent.

Patented Aug. 15, 190%.

Application filed December 24,1904:- Serial No. 238,184.

1'0 all whom it may concern:

Be itknown that I, FRANK E. BRYAN, a citizen of the United States of America, residing at Niles, in the county of Trumbull and @tate of Ohio, have invented certain new and useful improvements in Tlrolleyheels, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in trolley-wheels, and has for its object the provision of a novel form of wheel which will automatically replace a trolley-wheel in its proper position should the same become displaced therefrom.

It is a well-known fact that the trolleywheels now in use at times become displaced from the trolley-wires on account of the cars carrying the same rapidly passing around a curve or the trolleyw heel engaging the guidewires or obstacles that are in the path of travel of said. wheel. The wheel as con structed by me aims to dispense with the trouble experienced with Wheels now in use, and in constructing my improved wheel I slightly change the construction of the harps now used by making the same of a sullicient width to accommodate my improved trolleywheel.

The invention finally consists in the novel construction, combination, and arrangement 'of parts, which will be hereinafter more fully described and then specifically pointed out in the claim, and referring to the drawings accompanying this application, like numerals of reference designate COI'I'GSPOI'IdlDg parts throughout the several views, in which-- Figure 1 is a side elevation of on improved trolley-wheel, illustrating the same mounted in a harp. Fig. 2 is an end view of the same. Fig. 3 is a side elevation view of my improved trolley-whecl. Figs. 4 to 6, inclusive, are views illustrating different elevations of my improved trolley-wheel.

To put my invention into practice, Il. employ a harp 1, which is constructed upon lines similar to harps now used, with the exception that the same is made of a suflicient width to accommodate my improved trolley-wheel.

The trolley-wheel in its entirety is desig nated by the reference'numeral 2 and is journaled in the harp 1 by the ordinary form of pin 3, The periphery of the wheel is formed with three grooves 5, and 6. These grooves in cross-section are of a substantially ti shape, and the groove 5 is adapted to normally receive the trolley-wire (not shown) upon which the wheel travels. My invention resides in the particular formation of these grooves,and that the same may be clearly understood I will describe each groove independently and their relaton to one another. The one end 7 of the groove (designated by 4:) terminates in the edge of the wheel, While the opposite end of the groove, as indicated by 8, terminates in the groove 5. The junction of the groove t with the groove 5 forms a surface which the trolley-Wire can readily engage and be transferred from the groove i to the groove 5 should the trolley-wire become displaced from the groove 5 and ride upon the groove 1. The

one end 9 of the groove 6 terminates in the opposite edge of the trolley-wheel from that of the groove 4-, and its other end terminates in the groove 5, as indicated at 10. The termination of the grooves 4: and 6 within the groove 5 are at different points of the periphery of the Wheel. This particular arrange ment of the grooves and their terminations enables the grooves 4L and 6 to rapidly return the trolley-wire to its proper groove-namely, the groove 5--should the wire become displaced and travel in either of the grooves 4 or 6.

The ordinary construction of the trolleypoles and their spring-actuated mechanism causes the trolley-wheel to at all times engage the trolley-wire, and the grooves 4t and 6 will be forced into engagement with the trolleywire should the wire become displaced from the groove 5.

llt will be seen from the foregoing description, taken in connection with the drawings, that ll have provided a novel trolley-wire-replacing device in the form of a trolley-wheel which is extremely simple in construction, strong and durable, and highly eliicient for the purposes above specified, and while i have herein illustrated the grooves of the trolleywheel and their terminations as being of one particular formation it is obvious that I may construct a trolley-wheel having a plurality of grooves therein, the grooves all terminating in a central groove in which the trolleywire is normally adapted to travel.

it will be noted that various other changes may be made in the details of construction without departing from the general spirit and scope of the invention.

What i claim, and desire to secure by Letters Patent, is-

A trolley-wheel having a central trolleywire groove which is continuous around the wheel, and an auxiliary groove at each side of the trolley-wire groove, the auxiliary grooves being of less depth than the trolley- Wire groove, but parallel with the said trolley- Wire groove throughout the major part of their circumference, said auxiliary grooves merging at one end into the trolley-wire groove at opposite sides of the wheel, the other end of said auxiliary grooves being closed by the wall between the auxiliary grooves and the trolley-wire groove, extended across and joined with the rim of the Wheel. In testimony whereof I aflix my signature in the presence of two witnesses.

FRANK E. BRYAN.

Vitnesses: 7

H. C. OI-IL, EDGAR P. lVlLson.

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