US1237247A - Trolley-shoe. - Google Patents

Description

ENGLUNDQ L. WITHERIL.

TROLLEY SHOE.

APPLICATION FILED NOV.|3,1916- 2 SHEETS-SHEET 1.

Patented Aug. 14,1917;

A. ENGLUND & L. WITHERIL.-

' TROLLEY SHOE.

APPLICATION FILED NOV. 13. I916- 1,237,247. Patented Aug. 14, 1917 '2 SHEETSSHEET 2.

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ALEXANDER ENGLUND, 0F PORTLAND, AND LEE WITHEBIL, 0F HILLSDALE, OREGON.

TROLLEY-SHOE.

To all whom it may concern.-

Be it known that we, ALEXANDER ENG- LUND, a citizen of Russia, residing at Port-- land, in the county of Multnomah and State of Oregon, and LEE VVITHERIL, a citizen'of the United States, residing at Hillsdale, in the county of Multnomah and State of Oregon, have invented certain new and useful Improvements in Trolley-Shoes; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention has for its object to provide a simply constructed and inexpensive shoe to take the place of the usual wheels now employed on trolley poles for contact with the overhead trolley wire, thus elimi- Rating the wear on the in or shaft at the upper end of the pole which is caused by the rotating wheelsnow employed.

With the foregoing general object in view, the invention resides in certain novel features of construction, and in unique combi-' nations of parts to be hereinafter fully described and claimed, the descriptive matter being supplemented by the accompanying drawings which constitute a part of this application, and in which Figure 1 is a side elevation showing the improved shoe in. one of its extreme posi tions; I

Fig. 2 is a side elevation partly broken away showing the shoe in its other extreme;

Fig. 3 is a longitudinal section with the shoe in a neutral position;

Fig. 4 is a top plan view;

Fig. 5 is a bottom plan;

-Fig. 6 is a transverse section on the plane of the line 66 of Fig. 3 ;and

Fig. 7 is a perspective view of the. spring employed-for exerting its tensionto move 5 downwardly to facilitate the passage of the the shoe normally in one direction.

In the drawings above briefly described,

the numeral 1 designates the improved device as'a whole said device including an elongated shoe 2 having inits upper side a longitudinal channel 3 to receive the trolley wire 4,the ends of said channel being curved shoe over the wire, one of said ends preferably having a pocket 5 to contain graphite or any other appropriate lubricant for preventing excessive friction between the shoe and wire.

Specification of Letters Patent.

Patented Aug. 14, 1917. Applicatio n filed November 13, 1916, Serial No. 131,123.

while a transverse bearing 7 extends through said yoke and is joined integrally therewith *and with the lower side .of the shoe, said bearing being adapted to receive a pin or shaft 8 .by-means of which the device is pivotally connected with the usual trolley harp 9. Since the movement of the bearing 6 upon 8 is'slight, the latter may well be in tubular form as shown, being constructed of brass or other suitable material.

' usual cotter pins 10 or any other preferred means may be employed for holding the shaft 8 against removal from the harp, and a the latter will be equipped with the well known brushes 11 resting against the ends of the bearing 7. 4

For limiting the tilting movement of the shoe in either direction, upper. and lower stops 12. and 13 are provided, these'stops being carried respectively by andformed integrally with the front end of the shoe 2 and the intermediateportion of the yoke The provision of these stops will preventthe shoe from turning entirely over whether the car be moving forwardly or rearwardly.

A spring member 14: is provided to normally exert its tensionin a manner to tilt the shoe in one direction to the limit per mitted by the stops 12, said member being formed of a single piece of wire bent sub stantially upon itself at 15 and bearing at this point against the upper side of the yoke 6 in advance of the bearing 7,, the two halves of said wirebeing' coiled loosely laroundjthe ends of said bearing and then extending forwardly therefrom in the form of arms 17 whose free ends are bent laterally and up-' wardly to provide hooks 18 for engagement with the lower edge of the harp 9. The member 14 is of great advantage when .plac

ing the shoe. on the wire since it holds said shoe firmly but yieldably in such a position as to. permit it to be readily engaged with said wire. It will be understood that the movement of the bearing 7 on the shaft 8 is slight and that the wear on said shaft and the brushes 11 is therefore reduced to aiminimum- Furthermore, the wear on the'bearing' itself will. I

be infinitesimal, and vdue to the fact that the shoe will be preferably formed of steel and properly lubricated from the contents of the' pockets wear on this shoe and the wire will the iiiiing mm'ement of the de- 5?, with the harp, and a spril w nm'mzfll" lil'iing said, device to vermuied the upper ato l: T A "fiber hen said 1. formed of a single 1' and bearing at this point on 1 mlvzmce of flu: bearing, the two Sal?! Wire being coiled around the id bearing and extended forwm'dly 0e ends of said halves being 35 (mks f engagemcn with the "he harm. who? s ns inc descuibed. con-1i.- zn of the invenkion understand that within the appended claim numerous mule Without s21 01*} ficirw the 1;) class dew 7' we, have hereunbo asence 0i subscnbmg ENGLUND. 5,1200 2.1m jQii V 6 ends t'lw 'cof, a 551m 4 Iona- 11 bet. can 152x50.

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