US750458A - Overhead-trolley attachment - Google Patents

Overhead-trolley attachment Download PDF

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US750458A
US750458A US750458DA US750458A US 750458 A US750458 A US 750458A US 750458D A US750458D A US 750458DA US 750458 A US750458 A US 750458A
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trolley
wheel
rods
overhead
fingers
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    • 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
    • B60L5/10—Devices preventing the collector from jumping off

Definitions

  • This invention relates generally to overhead trolleys, and is in the nature of an attachment to the trolley-harp for the purpose'of keeping the trolley-wheel upon the conductor-wire at all times and to prevent the trolley-wheel jumping the wire when passing connections, cross-wires, switches, and the like.
  • the invention consists, essentially, in arranging a pair of spring-actuated rods above the trolley-wheel, said rods being carried by the harp and adapted to contact at their inner ends, thereby preventing the trolley-wheel becoming disengaged from the wire; and the invention consists also in providing the inner ends of the said rods with guidingfingers which are adapted to contact with cross-wires, switch-plates, and the like and guide the trolley-wheel past them without interruption, said guiding-fingers also serving to guide the wire to the trolley-wheel when placing the said trolley-wheel in contact with the wire.
  • Figure 1 is a perspective View showing the practical application of my invention.
  • Fig. 2 is a front elevation, a portion of the trolley-wheel being shown in section.
  • Fig. 3 is a side view.
  • Fig. 4 is a detail perspective view showing one of the rods and the fingers connected thereto.
  • the harp C which carries the wheel, has its sides extended a short distance above the upper edge of the wheel, and said extended portions are curved outwardly and bifurcated, as shown at C, and mounted in said bifurcated members are the rods D, the inner ends of which are formed with heads D, the faces D which contact with each other, as most clearly shown ger F, a forwardly and downwardly curved v finger G, a rearwardly and downwardly curved finger H, and a downwardly and inwardly curved finger I, the lower curved end of the finger I extending under" the flange of the trolley-wheel, as most clearly shown in Fig. 2.
  • the upwardly-extending fingers F form guides for guiding the trolley to the wire, and the front and rear fingers G and H serve to guide the trolley past cross wires, connecting-wires, and switch-plates and the like without interruption.
  • the springs permit them to yield a limited amount; but the moment the obstruction is passed the springs return the rods to their normal or closed position. All of the fingers are rounded and curved, so that whenever they come in contact with any fixed object they will yield and move past the object and will not bind against the same, as might occur if the fingers had any straight or flat portions.
  • the curved fingers When the trolley-wheel is being placed against the wire, the curved fingers will serve to guide the wire between the heads and the rods will readily yield to permit the trolley-wire to pass between the heads and when the trolley-wheel is being withdrawn from the wire the rods will readily part, permitting the wheel to be drawn down away from the wire.
  • a trolley-wheel harp having spring-actuated rods, said rods having heads at their inner ends, each head being provided with a plurality of guide-fingers, substantially as described.
  • a trolley-harp having the spring-actuated rods arranged therein, said rods having the'curved guiding-fingers, substantially as described.
  • a trolley-wheel harp having bifurcated upper ends, the rods arranged in said bifurinner end of each rod being provided with an upwardly, forwardly, a rearwardly, and a I downwardly curved finger, all arranged and adapted to operate substantially as described.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Description

No. 750,458. PATENTED JAN, 26,1904.
0. HOLYLAND, s3.
OVERHEAD TROLLEY ATTAGHMENT.
APPLICATION FILED JUNE 6. 1903.
N0 MODEL.
Patented January 26, 1904.
UNITED STATES PATENT OFFICE.
CHARLES HOLYLAND, sa, OF PITTSBURG, PENNSYLVANIA.
OVERHEAD-TROLLEY ATTACHMENT.
SPECIFICATION forming part of Letters Patent No. 750,458, dated January 26, 1904.
Application filed June 6, 1903, Serial No.'l60,368. (No model.) i
To all whom it may concern.-
Be it known that 1, CHARLES HOLYLAND, Sr. a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Overhead-Trolley Attachment, of which the following is a specification.
This invention relates generally to overhead trolleys, and is in the nature of an attachment to the trolley-harp for the purpose'of keeping the trolley-wheel upon the conductor-wire at all times and to prevent the trolley-wheel jumping the wire when passing connections, cross-wires, switches, and the like.
The invention consists, essentially, in arranging a pair of spring-actuated rods above the trolley-wheel, said rods being carried by the harp and adapted to contact at their inner ends, thereby preventing the trolley-wheel becoming disengaged from the wire; and the invention consists also in providing the inner ends of the said rods with guidingfingers which are adapted to contact with cross-wires, switch-plates, and the like and guide the trolley-wheel past them without interruption, said guiding-fingers also serving to guide the wire to the trolley-wheel when placing the said trolley-wheel in contact with the wire.
The invention'consists also in certain details of construction and novelties of combination, all of which will be fully described hereinafter and pointed out in the claims.
In the drawings forming part of this specification, Figure 1 is a perspective View showing the practical application of my invention. Fig. 2 is a front elevation, a portion of the trolley-wheel being shown in section. Fig. 3 is a side view. Fig. 4 is a detail perspective view showing one of the rods and the fingers connected thereto.
In carrying out my invention I employ an ordinary trolley-pole A and wheel B. The harp C, which carries the wheel, has its sides extended a short distance above the upper edge of the wheel, and said extended portions are curved outwardly and bifurcated, as shown at C, and mounted in said bifurcated members are the rods D, the inner ends of which are formed with heads D, the faces D which contact with each other, as most clearly shown ger F, a forwardly and downwardly curved v finger G, a rearwardly and downwardly curved finger H, and a downwardly and inwardly curved finger I, the lower curved end of the finger I extending under" the flange of the trolley-wheel, as most clearly shown in Fig. 2. The upwardly-extending fingers F form guides for guiding the trolley to the wire, and the front and rear fingers G and H serve to guide the trolley past cross wires, connecting-wires, and switch-plates and the like without interruption. Whenever the guidefingers come in contact with such parts, the springs permit them to yield a limited amount; but the moment the obstruction is passed the springs return the rods to their normal or closed position. All of the fingers are rounded and curved, so that whenever they come in contact with any fixed object they will yield and move past the object and will not bind against the same, as might occur if the fingers had any straight or flat portions. When the trolley-wheel is being placed against the wire, the curved fingers will serve to guide the wire between the heads and the rods will readily yield to permit the trolley-wire to pass between the heads and when the trolley-wheel is being withdrawn from the wire the rods will readily part, permitting the wheel to be drawn down away from the wire.
Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-
1. The combination with a trolley-wheel harp, of the oppositely-disposed spring-actuated rods and the guiding-fingers attached to the innerlends of said rods, said fingers extending in divers directions, as set forth.
2. A trolley-wheel harp having spring-actuated rods, said rods having heads at their inner ends, each head being provided with a plurality of guide-fingers, substantially as described.
3. A trolley-harp having the spring-actuated rods arranged therein, said rods having the'curved guiding-fingers, substantially as described.
4. A trolley-wheel harp, having bifurcated upper ends, the rods arranged in said bifurinner end of each rod being provided with an upwardly, forwardly, a rearwardly, and a I downwardly curved finger, all arranged and adapted to operate substantially as described.
' CHARLES HOLYLAND, SR.
Witnesses:
J E. HANEY, JEssE HALE.
US750458D Overhead-trolley attachment Expired - Lifetime US750458A (en)

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