US770744A - Trolley. - Google Patents

Trolley. Download PDF

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Publication number
US770744A
US770744A US16339303A US1903163393A US770744A US 770744 A US770744 A US 770744A US 16339303 A US16339303 A US 16339303A US 1903163393 A US1903163393 A US 1903163393A US 770744 A US770744 A US 770744A
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Prior art keywords
trolley
arms
wheel
lower ends
shaft
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US16339303A
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Samuel Fisher
Albert Sanders
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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 to certain new and useful improvements in trolleys, the object of the invention being to provide means for normally maintaining the trolley-wheel in engagement with the trolley-wire and preventing the accidental disengagement thereof.
  • the invention comprises, in connection with the trolley-harp and trolley-wheel, the extending of the shaft upon which the trolley-wheel is mounted at each end beyond the sides of the harp and the mounting on the extended ends of the shaft of a pair of arms, which at their upper ends carry horizontally disposed bevel wheels adapted to act as guards to maintain the trolley-wheel in engagement with the trolleywire.
  • the arms which are mounted on the extending ends of the trolley-shaft, have a spring interposed between the same at the lower ends and have these lower ends connected by links to an operating-cord, whereby the lower ends of the arms may be drawn together in order to spread the upper ends thereof and permit the engagement with or disengagement of the trolley-wheel from the wire.
  • FIG. 1 is a detail side elevation of our improved trolley.
  • Fig. 2 is a front view of the same.
  • 1 indicates the trolley-harp, mounted on or suitably secured to the upper end of the trolley-pole 2.
  • the trolley-wheel 3 is mounted on a shaft 4, and this shaft is extended at both ends beyond the sides of the harp and has mounted on these extended ends the vertically-disposed arms 5, the upper ends of which are at right angles, and on these angularly-extending portions 6 are pivotally secured the pivotal guardwheels 7.
  • the portions of the arms 5 which are below the shaft 4 diverge outwardly and are held normally spread by means of an interposed spring 8, suitably connected to the arms near their lower ends.
  • Pivotally connected to the lower ends of the arms is a pair of links 9, which are attached to a common cord or rope 10, whereby the arms 5 will both be operated in unison.
  • a convenient method of manufacture is to simply twist the lower ends of the arms 5 whereby to form a fiat surface for the pivoting of the upper ends of the links 9 thereto.
  • a pull is made on the rope or cord 10
  • the lower ends of arms 5 are drawn together, compressing spring 8 and spreading the upper ends of arms 5, whereby to move wheels 7 away from each other and permit the engagement with or disengagement of the trolleywheel from the trolley or current wire 11.
  • Thekeys 12 or other suitable means may be employed in theshaft L for securing the arms 5 in position thereon.
  • a trolley In a trolley, the combination with a harp supporting a wheel upon a shaft having projecting ends, and a pole supporting the harp, of a pair of arms loosely secured on the projecting ends of the shaft for rocking movement thereon, pins projecting through .the ends of said shaft, and being spaced from said arms, guard-wheels mounted on the upper ends of the arms and projecting toward each other directly above the wheel, links pivoted to the lower ends of the arms and having their lower ends overlapping, a flexible means passsigned our names in the presence of two subing through the overlapping" ends of sald links scribing witnesses.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Description

No. 770,744. PATENTED SEPT. 27, 1904. s. FISHER & A. SANDERS.
TROLLEY.
APPLIOATION FILED JUNE 27. 1903.
NO MODEL.
UNITED STATES Patented September 27, 1904.
PATENT OFFICE.
TROLLEY.
SPECIFICATION forming part of Letters Patent No. 770,744, dated September 27, 1904. Application'filed June 2'7, 1903. Serial No. 163.393. (No model.)
To all whom it may concern:
Be it known that we, SAMUEL FISHER and ALBERT SANDERS, citizens of the United- States, residing at Butler, in the county of Butler and State of Pennsylvania, have invented a new and useful Improvement in Trolleys, of which improvement the following is a specification. I
This invention relates to certain new and useful improvements in trolleys, the object of the invention being to provide means for normally maintaining the trolley-wheel in engagement with the trolley-wire and preventing the accidental disengagement thereof.
Briefly described, the invention comprises, in connection with the trolley-harp and trolley-wheel, the extending of the shaft upon which the trolley-wheel is mounted at each end beyond the sides of the harp and the mounting on the extended ends of the shaft of a pair of arms, which at their upper ends carry horizontally disposed bevel wheels adapted to act as guards to maintain the trolley-wheel in engagement with the trolleywire. The arms, which are mounted on the extending ends of the trolley-shaft, have a spring interposed between the same at the lower ends and have these lower ends connected by links to an operating-cord, whereby the lower ends of the arms may be drawn together in order to spread the upper ends thereof and permit the engagement with or disengagement of the trolley-wheel from the wire.
In describing the invention in detail reference is had to the accompanying drawings, forming a part of this specification, and wherein like numerals of reference indicate like parts throughout both views, in which Figure 1 is a detail side elevation of our improved trolley. Fig. 2 is a front view of the same.
In the accompanying drawings, 1 indicates the trolley-harp, mounted on or suitably secured to the upper end of the trolley-pole 2. The trolley-wheel 3 is mounted on a shaft 4, and this shaft is extended at both ends beyond the sides of the harp and has mounted on these extended ends the vertically-disposed arms 5, the upper ends of which are at right angles, and on these angularly-extending portions 6 are pivotally secured the pivotal guardwheels 7. The portions of the arms 5 which are below the shaft 4 diverge outwardly and are held normally spread by means of an interposed spring 8, suitably connected to the arms near their lower ends. Pivotally connected to the lower ends of the arms is a pair of links 9, which are attached to a common cord or rope 10, whereby the arms 5 will both be operated in unison. A convenient method of manufacture is to simply twist the lower ends of the arms 5 whereby to form a fiat surface for the pivoting of the upper ends of the links 9 thereto. When a pull is made on the rope or cord 10, it will be evident that the lower ends of arms 5 are drawn together, compressing spring 8 and spreading the upper ends of arms 5, whereby to move wheels 7 away from each other and permit the engagement with or disengagement of the trolleywheel from the trolley or current wire 11. Thekeys 12 or other suitable means may be employed in theshaft L for securing the arms 5 in position thereon. During the travel of the trolley-wheel as the wheels 7 engage a switch or crossover it will be observed that they will readily spread, so as to permit the passage of the same. When they are in the normal position, as shown in the drawings, the trolley-wheel will be prevented from being disengaged from the wire, as will be apparent.
It will be noted that various changes may be made in the details of construction without departing from the general spirit of our invention.
Having fully described our invention, what we claim as new, and desire to secure by Letters Patent, is
In a trolley, the combination with a harp supporting a wheel upon a shaft having projecting ends, and a pole supporting the harp, of a pair of arms loosely secured on the projecting ends of the shaft for rocking movement thereon, pins projecting through .the ends of said shaft, and being spaced from said arms, guard-wheels mounted on the upper ends of the arms and projecting toward each other directly above the wheel, links pivoted to the lower ends of the arms and having their lower ends overlapping, a flexible means passsigned our names in the presence of two subing through the overlapping" ends of sald links scribing witnesses. whereby the lower ends of the arms may be drawn together to separate the guard-wheels, SAMUEL FISHER 5 and a spring arranged between the lower ends I ALBERT SANDERb' of the arms for returning them to their nor- [n presence of mal position, substantially as described. H. J. LEVIS,
In testimony whereof we have hereunto F. O. HENZI.
US16339303A 1903-06-27 1903-06-27 Trolley. Expired - Lifetime US770744A (en)

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US16339303A US770744A (en) 1903-06-27 1903-06-27 Trolley.

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