US806248A

US806248A - Trolley.

Info

Publication number: US806248A
Application number: US26303805A
Authority: US
Inventors: George R Fletcher
Original assignee: Individual
Current assignee: Individual
Priority date: 1905-05-31
Filing date: 1905-05-31
Publication date: 1905-12-05
Anticipated expiration: 1922-12-05

Description

No. 806,248. I PATENTED DEC. 5, 1905.

G. R. FLETCHER. V

TROLLEY. I APPLICATION FILED MAY31, 1905.

I Ai tbmeys- 4 To all whom it may concern: v

r TENT ,orrion. I

i Specification of Letters Patent.

Patented. Dec. 5, 1905.

Application 1118a May 31,19 05. seritirmzsaoss.

.Be it known that 1,..GE RG-E R. FLETCHER,

(1ambridge,.in the county of Guernsey and State ofOhio, have invented a new and useful Trolley, of which .the following is a specification. I

. Thisinvention relates to certain improvements in trolleys for electric-railway cars, and more particularly to novel means for removing ice and other obstructionsfrom the trolley-wire, so as to insure a good electrical contact between the. trolley-wheel and. the overhead conductor.-

ied toengag e the overhead conductor in advance of said wheelq i Afurtherobject of the-invention isto'pro- 'vide a trolley-wheel having a lateral movement, whereby the same will readily follow the conductor-in traveling around curves or .assing over switches.

still'further objectisito provide a shield .or guard for revent-ing the. trolleyewire from catching un er the trolley-sup orting frame should thetrolley-lwheel acci entally jump the overhead conductor. With these-and other objects inview the ,invention consists ingthe construction and novel combination and arrangem'entof parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended, it being understood that various changes inform, proporsions, and minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention. v

In the accompanying drawings, forming a part of this specification, Figure 1 is a side elevation of my improved device. f Fig. 2 is a front elevation, partly in section. Fi 3 is tion of a trolley-pole one end of which is threaded, as indicated at 6, for detachable engagement with an adjacent section, while its free end is provided with an angular ex tension 7, forming a base or su port? for the wheel-supporting harp or bradlret 8-. The harp orbracket 8,whichis preferably stamped, cast, or forged from a single piece of metal, is provided with a pair of spaced arms 9, hav- 5; ing perforations or openings 10 formed there in for the rece tion of the axle-bolt 11, upon which the tro eyv-wheel 12 is journaled, the base. of said bracket being providedwith a cen- .tral opening 13, adapted to receive the attaching-bolt 14'. The bolt 14' is loosely mounted in the opening 13, so as, to permit free lateral movementof the bracketinpassing around 70, .The object of the invention is to 'rovid'e a yieldably-supported scraper pivota ymountj *ed'onthe axle of thetrolley-wheeland adapt-- curves or over switches, said bracket, being held in frictional engagement with the base of the angular extension by means of a coil-spring 15., interposed between the bottom of the ex- -tension,'andan adjusting-nut 16, engaging 7 5 the terminal threads of said bolt, as shown. The .base'or extension '1 is provided with 3.03 terminal segmental slot 17 ,.,adapted to rev ceive a bolt. or pin 18, secured to the bottom of the bracket or harp, whereby said bolt by engagementwith the-end walls of the slot will limit the lateral movement of the frame. 1

It will thus be seen that by adjusting the nut .16the tension of the coil-spring may be regulated at will to vary the pressure exerted by the .sup orting-bracket: on the extension of ;the "trol ey-pole, while'the frame is prevented 2;.

'23 for retaining the ice-scraper 24 in position. 5 I

The scraper 24 is also preferably stam ed from a single piece of metal and is provi ed with a pair of s aced arms 25, adapted to embrace the tro ley-wheel, said arms being pivotally mounted on the axle-bolt and reroo tained in position thereon by a nut 26, en-

aging the threaded end of said bolt. The ee end of the scraper is bent upwardly atapproximately right angles, to the general plane of the body portion to form an angular 1o 5 extension 27, having a recess 28. formed in the end thereof for the reception of the overhead wire or conductor 29, said scraperbeing yieldably supported in contact with the con ductor by a coil-spring 30, carried by the bolt 1 1 o 23 and interposed between saidscraper and the adjacent longitudinal ear of the supporting-bracket. A nut 31 bears against the longitudinal ear of the bracket 8 for securing the bolt 23 in position, While a second nut 32 is threaded on the intermediate portion of said bolt for. regulatin the tension of the coil-spring 30. Attention is here called to the fact that the bolt 1 1 serves as the journal for the trolley-wheel and also as the pivotal support for the scraper, the several parts being retained in position by a single clampingnut 26.

As a means for preventing the trolley-wire from catching on the wheel supporting frame, should the trolley-wheel accidentally jump the overhead conductor, there is provided a guard or shield 33, one end of which is bolted or otherwise rigidly secured to the uppersection of the trolleyole, while its free end extends above the a jacent end of the harp 8 and is provided with a terminal segmental recess 34 to permit free lateral movement of said frame.

The trolley-Wheel may be provided with a lubricator-duct 35, through which oil may be admitted to the journal, and, if desired, a washer 36 may be interposed between the supporting-bracket and the extension of the trolley-p0 latter.

From the foregoing description it is thought that the construction and operation of the device will be readily understood by those skilled in the art, and further description thereof is deemed unnecessary.

Having thus described the invention, what e to prevent excessive wear on the is claimed is 1. The combination with a trolley-pole, of a harp secured to the pole and provided with a longitudinally disposed ear, a trolleywheel journaled in sa1d harp, a scraper pivotally supported on the journal of the trolley-wheel, and a spring interosed between the scraper and ear for yielda ly supporting the former in contact with the conductor.

2. The combination with a trolley-pole, of a harp swiveled on the pole and having a trolley-wheel journaled therein, a scraper pivotally mounted on the journal of said wheel and yieldably supported in contact with the overhead conductor, and a uard or shield secured to the trolley-pole an havin its free end disposed between the harp and scraper.

3. The combination with a trolley-pole, of a harp swiveled on the pole and provided with a longitudinal ear, a trolley-wheel journaled in said harp, a scraper pivotally supported on the journal of said wheel, a bolt connecting said ear and scraper, and a spring carried by the bolt for yieldably supporting the scraper in contact with the overhead conductor.

4. The combination with a trolley-pole provided with an angular extension, of a harp swiveled on the pole and provided with oppositely-disposed erforated ears, a trolley-wheel journaled in said harp, a scraper -pivotally supported on the journal of the trolley-wheel, a threaded bolt secured to the scraper and engaging the perforation on the adjacent ear of the harp, a spring carried by the bolt for yieldably supporting the scraper in contact with the overhead conductor, and a nut engaging the threads on the bolt for adjusting the tension of said spring.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

GEORGE R. FLETCHER.

Witnesses:

J. F. STEWART, W. W. STEWART.