US865474A - Trolley. - Google Patents

Description

P'ATENTED SEPT. 10, 1907.

J. ASHURST.

TROLLEY.

APPLICATION FILED MAR. 25, 1907.

2 SHEETS-SHEBT 1.

| I "mil" WITNESSES:

, [/VVIZNTOR B Y I v d r W [lo/v19 PATENTEDISEPT. 10, 1907.

J. ASHURST.

TROLLEY.

APPLIGATION FILED MAR.251907.

2 SHEETSSHEET 2.

reenter.

Specification of Letters Patent- Application filed March 25, 190?. Serial No. 364.529.

To all tell am it may concern:

Be it known that 1, Joseph Asnt'nsr, a citizen of the United States, residing at Chicago, in the county of Cool; and State of Illinois, have invented certain new and useful ln'iprovements in Trolleys, of which the following is a specification This invention relates to trolleys or current collectors for electric railways to whi .h the current is supplied through overhead wire.

The object of the invention is to form an improved device which will turn or swing in both a vertical and a horizontal plane, so that it will follow the wire easily in all direct-ions, without danger of running off at the curves; and a lurther object oi the invention is to provide a collector having a good contact, by means of a plurality of collecting wheels which travel along the wire.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a top plan view of the trolley. Fig. 2 is a side elevation. Fig. 3 is an end elevation. Fig. 4 is a section on the line 4l of Fig. 2

Referring specifically to the drawings, 1 indicates a metal base plate on which the wheels 3 are mounted by means of hearing bolts 4. The wheels are four in number and are arran ed in pairs near the front and rear ends of the plate, respectively. The wheels of the respective pairs are not directly opposite each other, but are offset or staggered, and each wheel has at the bottom a flange 43. The wire 16 extends between the wheels and rests upon said flanges.

The pivot belts of the two wheels on each side of the wire are connected by longitudinal upper plates or strips 2 which turned down at the ends and also beveled or rounded oil at the ends, on the inside edge, as indicated at 2*, to give till clearance for the wire. Each upper plate has thereon a ridge piece 13 extend in lengthwise, and serving to direct or guide the trolwire into the space between the rollers when the trolley is caught or applied to the wire.

On the underside of the plate 1, at about the middle thereof, is a circular bearing member 5. fastened l'dthe und r side of the plate by bolts 5, and this member has circular groove opposite a similar groove in the oppo site (up or boa 'ng member 7, with balls in the groove, formi. g-a ball bearing between said members.

The lower or cup member '7 lms depending iars 7 at *acli side betwccn which is received the knuckle ti projecting from the end piece 8 of a socket l) which receivcs the trolley pole.

The hinge is formed between the ears 7" and knuckle S by means of a horizontal cross bolt '11 extending therethrough, and the head is normally held in level position by means of two spiral springs 10 which are attached at opposite ends to either side of the member 7 and are looped around spurs 17 projecting from the end piece 8. v i

In order to prevent the guy wire from damaging the head, in case the trolley should run off the current wire, arched guardsl l are provided on each side, consisting respectively of metal pieces riveted at opposite ends to the opposite ends of the base plate 1 and supported at the middle by braceslt') extending from the plate 1 to said arched pieces. In case the trolley should run off the wire the guy, instead of striking the head, will strike the guards and tilt the head, thereby allowing the guy wire to slip or pass over the trolley head, thereby preventing the guy wire from tearing the trolley head off.

The verti 'al bearing between the parts 5 and 7, and the horizontal hearing at the hinge bolt 11, allow the head to turn in either a horizontal or a vertical plane, and thereby to accommodate itself to all variations in the angle or curve of the wire, that the head will run freely along the wire with little or no danger of running off. The four wheels. provide alarge bearing surface, and insures good collection of current at all. times.

I 1 laim:

14 A trolley having a vertically oscillating head, and gum-(ls extending under the head from front to back thereof. V

'2. A trolley havinizf a vertically oscillating plate extent in: lengthwise with respect to the current wire, current collectors mourned on said plate and adapted to contact with the wire, and guards comprising arched pieces extending under the plate from the front to the rear end thereof. b

K. A trolley comprisinr a support, a plate rotatably mounted thereon by a vertical pivot and extending length wise under the wire, and a pair of wheels on vertical axes at each \lltl of the plate, the wheels of each pair being spnccrl apart to rcccive the wire tlicrebetween.

t. A trolley comprising a support, :1 lower plate mounted thereon and extending lengthwise under the wire, a pair in wheels on vcrticul axes at elltfll end of the plate, the wheels 01' each pair being spaccdflipart to receive the wire tlicrclwtwccn, and an upper plate at. each side, connecting the upper ends of the axes of the wheels on that side.

3. A trolley having apair of current collecting wheels standing side by side on vertical axes, said wheels being spaced to receive a wire thoi'ehelween and having flanges- :ll thcii' lower ends on which the Wire 1' (i. A trollcy conun-isiin: a plate haimg front and rear pairs of urrcnt collecting wheels thereon, an upper hearing member fixed to the under side of the plate, a loweilit-urinementholundenchc upper member, permitting turn on a vertical nxi a socketpietfe for the end of thetrolley pole. at hing-c between the socket piece and said lower meni, bcr having a horizontal ax and oppositely acting spring-s connccterl between the opposite hinge members and tending to hold the head level. I

ln l sllmony whereof I atlix my signature, in presence [w witnesses.

JOSEPH ASHURST.

Witnesses Gil

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