US826296A - Trolley. - Google Patents

Description

N0. 826,296. PATENTED JULY 17, 1906.

G. E. WARD. TROLLBY.

APPLICATION FILED AUG.11, 1905.

WITNESSES. INVENTOI? arizeyzzifiird BY E 2 WW9,

ATTORNEYS ms Norms Pzzrnes cm, WASHINGTON, o. c.

UNITED STATES PATENT OFFICE.

TROLLEY.

Specification of Letters'Patent.

Patented July 17, 1906.

Application filed August 11, 1905. Serial No. 273,784.

To all whont it may concern.-

Be it known that I, GURNEY ENooH WARD, a citizen of the United States, and a resident Abilene, in the county of Taylor and State of Texas, have invented a new and Improved Trolley, of which the following is a full, clear, and exact description.

The object of the invention is to provide a trolley in which the liability to running off the trolley-wire is reduced to a minimum, and I attain this end by a peculiar construction which involves a trolley-wheel carried on an axis fixed on the trolley pole or harp and an auxiliary wheel yieldingly mounted on the pole and pressed against the under side of the wire, so that should the pole drop slightly the auxiliary wheel will move relatively to the pole and reduce this contact with the wire.

The invention resides in certain novel features of construction and arrangement of parts, which will be fully set forth hereinafter, and particularly pointed out in the claims.

Reference is had to the accompanying drawings, which illustrate as an example the preferred embodiment of my invention, in which drawings like characters of reference indicate like parts in both views, and in which Figure 1 is a section on the line 1 1 of Fig. 2, and Fig. 2 is a side elevation with parts broken away.

10 indicates the trolley-pole, which is supplied with a harp or end portion 1 1 of any desired construction.

12 indicates the main trolley-wheel, which is mounted in the harp 11 on a fixed axle 14. The auxiliary trolley-wheel 15 is carried on a pin 16, which is held in a fork 17 at the end of a rod 18. Said rod is slidably fitted within a tube 19, secured in the harp 11. The tube carries a pin 20, which fits in the slide 21 of the rod 18, which prevents the rod from turning, and thus maintaining the rod 18 in true contact with the trolleywire. Encircling the rod 18 within the tube 19 is a spring 22, the lower end of which engages the flange 23 and the upper end of which engages the fork 17. This spring is of the expansive type and holds the rod 18 steadily engaged with the trolley-wire. 24 indicates the cord or rope for drawing the trolleypole down out of contact with the wire, and this cord has a branch 25, which is connected to the lower end of the rod 18, so when tension is exerted on the cord the pole is moved bodily downward, and at the same time the auxiliary wheel is given an independent downward movement.

In using the invention the trolley is mount ed in the usual manner, and the wheels 12 and 15 run along the under side of the wire. Both of the wheels serve as conductors for electric fluid, and owing to the peculiar manner in which the wheel 15 is mounted the auxiliary wheel retains its true engagement with the trolley-wire irrespective of jumping or swinging of the pole. When it is desired to draw down the pole for the purpose of clearing crossings and other head structures, the cord 24 should be pulled, so that when the pole is moved down the auxiliary wheel 15 also moves snugly down in the harp, so that it does not project above the wheel 14. This avoids entangling the auxiliary wheel with overhead structures when the pole is drawn down. The spring-sustained wheel 15 will bear yieldingly against the wire at all times during the operation of the trolley and will take from the same the shock incident to vertical movement of the trolley against the wire.

It will be noticed that the auxiliary-wheelsupporting rod is so mounted on the harp that it moves approximately tangent to the arc of the circle described by the end of the pole and as a conse uence will respond more quickly to the impu se of the spring and will require less time to pass through the entire extent of movement with respect to the harp necessary to maintain the said wheel in contact with the trolleywire than were it mounted to move perpendicular thereto. In the latter case the wheel would have a greater extent of movement and more or less friction would result between the rod and its connections.

Having thus described the preferred form of my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A trolley having a pole provided with a harp, a wheel mounted therein on a permanent axis, a sleeve secured within the harp and at approximately a right angle to the pole, a rod having a forked end mounted within the sleeve, an auxiliary wheel journaled in the fork, a spring acting between the sleeve and fork, and a cord connected with the pole and having a branch connected with the end of the rod.

2. A trolley having a pole provided with a harp, a Wheel mounted therein on a permanent axis, a spring-actuated rod slidably mounted Within theharp and movable at ap- GURNEY ENOCH WARD. 5 proximately right angles to the pole, an auX- Witnesses:

iliary Wheel journaled in the end of the rod, W. C. MINGUs,

and a cord connected with the pole and rod. A. G. TAGGART.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

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