US571710A - Trolley for electric cars - Google Patents

Trolley for electric cars Download PDF

Info

Publication number
US571710A
US571710A US571710DA US571710A US 571710 A US571710 A US 571710A US 571710D A US571710D A US 571710DA US 571710 A US571710 A US 571710A
Authority
US
United States
Prior art keywords
trolley
electric cars
wheel
contact
standard
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Publication date
Application granted granted Critical
Publication of US571710A publication Critical patent/US571710A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/04—Current collectors for power supply lines of electrically-propelled vehicles using rollers or sliding shoes in contact with trolley wire
    • B60L5/06—Structure of the rollers or their carrying means

Definitions

  • Trolleys for electric cars as usually constructed have the contact-wheel rigidly journaled at the end of the trolley-pole, and the wheel when passing around curves or from one wire to another is liable to and often does slip from the conductin g-wire, thusbreaking the contact and causing the car to stop.
  • the object of my invention is to overcome this defect; and the invention consists in so mounting the contact-wheel that it will have a vertical and a lateral motion, whereby it is always held in contact with the conductingwlre.
  • Figure l is a side elevation of a contact-wheel and trolley-head, partly in section, embodying my invention.
  • 2 is a plan or top View of same with the contact-wheel shown in dotted lines.
  • A represents the trolley-pole; B, the trolley-head, in which is mounted a standard or truck 0, having at its upper end a short shaft or spindle 1), upon which is mounted the trolley-wheel E.
  • the lower end 0 of the standard G is round and fits into a socket I) in the trolley-head B, and its lower end portion 0 is reduced in diameter and surrounded by a spiral spring F, that bears upon the bottom of the socket b and under the portion 0, so as to keep the said standard pressed up two springs being equal, so as to hold said disk nominally in a central position, but readily allowing the wheel E and truck 0 to turn to adapt themselves to any curve that maybe in the road.
  • ⁇ Vhat I claim is- In combination with a trolley for electric cars a trolley-wheel mounted in a standard carried by a head, a spring for holding said standard in a raised position, arms on said standard, a disk working between said arms and carried by and free to slide upon a rod secured in the head and a spring on each side of said disk to hold it normally in a central position substantially as set forth.

Description

(No Model.) r
S. F. TUFT-S. TROLLBY FOR ELECTRIC CARS.
No. 571,710. Patented Nov. 17, 1896.
UNITED STATES PATENT Orricn.
SAMUEL F. TUFTS, OF IVESTBROOK, MAINE.
TROLLEY FOR ELECTRIC CARS.
SPECIFICATION forming part of Letters Patent N0. 571,710, dated November 17, 1896.
Application filed October 9, 1895. Serial No. 565,111. (No model.)
To 02% whom, it may concern:
Be itknown that I, SAMUEL F. TUFTS, a citizen of the United States, residing at lVestbrook, in the county of Cumberland and State of Maine, have invented certain new and useful Improvements in Trolleys for Electric Cars, of which the following, taken in connection with the accompanying drawings, is a specification.
Trolleys for electric cars as usually constructed have the contact-wheel rigidly journaled at the end of the trolley-pole, and the wheel when passing around curves or from one wire to another is liable to and often does slip from the conductin g-wire, thusbreaking the contact and causing the car to stop.
The object of my invention is to overcome this defect; and the invention consists in so mounting the contact-wheel that it will have a vertical and a lateral motion, whereby it is always held in contact with the conductingwlre.
Referring to the accompanying drawings, Figure l is a side elevation of a contact-wheel and trolley-head, partly in section, embodying my invention. 2 is a plan or top View of same with the contact-wheel shown in dotted lines.
A represents the trolley-pole; B, the trolley-head, in which is mounted a standard or truck 0, having at its upper end a short shaft or spindle 1), upon which is mounted the trolley-wheel E. The lower end 0 of the standard G is round and fits into a socket I) in the trolley-head B, and its lower end portion 0 is reduced in diameter and surrounded by a spiral spring F, that bears upon the bottom of the socket b and under the portion 0, so as to keep the said standard pressed up two springs being equal, so as to hold said disk nominally in a central position, but readily allowing the wheel E and truck 0 to turn to adapt themselves to any curve that maybe in the road.
It will be readily seen that by giving to the truck 0 and wheel E two Inoti0nsnaniely, a vertical yielding motion and a partial rotary 1notion-the trolley-wheel E is prevented from jumping from the wire, it being pressed closely to and held in contact with said wire, whether running in a straight line or around .a curve.
\Vhat I claim is- In combination with a trolley for electric cars a trolley-wheel mounted in a standard carried by a head, a spring for holding said standard in a raised position, arms on said standard, a disk working between said arms and carried by and free to slide upon a rod secured in the head and a spring on each side of said disk to hold it normally in a central position substantially as set forth.
In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 25th day of January, A. D. 1895. V
SAMUEL F. TUE-TS.
W'itnesses CHAS. STEERE, EDWIN PLANTA.
US571710D Trolley for electric cars Expired - Lifetime US571710A (en)

Publications (1)

Publication Number Publication Date
US571710A true US571710A (en) 1896-11-17

Family

ID=2640409

Family Applications (1)

Application Number Title Priority Date Filing Date
US571710D Expired - Lifetime US571710A (en) Trolley for electric cars

Country Status (1)

Country Link
US (1) US571710A (en)

Similar Documents

Publication Publication Date Title
US571710A (en) Trolley for electric cars
US570339A (en) Track-cleaner or current-collector
US1020794A (en) Trolley.
US793430A (en) Trolley.
US451211A (en) Roderick macrae
US775777A (en) Trolley.
US773459A (en) Trolley.
US489481A (en) Electric-railway trolley
US566237A (en) Trolley-pole for electric cars
US806248A (en) Trolley.
US572940A (en) Christian f
US413287A (en) Contact-trolley for electric-railway cars
US757786A (en) Trolley.
US775808A (en) Trolley.
US693351A (en) Overhead-trolley electric railway.
US565725A (en) Trolley-wheel
US858255A (en) Trolley for electric railways.
US564955A (en) Yielding and self-adjusting support for trolley-wheels
US1087221A (en) Trolley-wheel support.
US783228A (en) Trolley.
US570740A (en) Trolley
US778987A (en) Trolley.
US621399A (en) Arthur j
US698979A (en) Trolley-arm head.
US717291A (en) Trolley connection and guard for electric cars.