US439192A

US439192A - Chusetts

Info

Publication number: US439192A
Authority: US
Publication date: 1890-10-28
Anticipated expiration: 1907-10-28

Description

(No Model.)

B. O. ROWELL 85 P. B; GALLOUPE.

. TROLLEY POLE FOR ELECTRIC CARS.

No. 439,192. Patented Oct. 28, 1890.

UNITED STATES PATENT OFFICE.

BENTON O. ROWVELL AND FRANCIS E. GALLOUPE, OF BOSTON, MASSA- CHUSETTS.

TROLLEY-POLE FOR ELECTRIC CARS.-

SPEGIFIGATION forming part of Letters Patent No. 439,192, dated October 28,1890.

Application filed April 5, 1890. Serial No. 346,755. (No model.) i

To all whom it may concern.-

Be it known that we, BENTON O. RoWELL and FRANCIS E. GALLOUPE, both of Boston, in the county of Suffolk and Commonwealth of Massachusetts, have jointly invented certain new and useful Improvements in Trolley-Poles for Electric Cars, of which the following is a specification.

Our improvements relate to attachments to the trolley-poles for electric cars by which the trolley may be more easily and quickly returned to the overhead circuit-wire whenever it has been removed therefrom, either intentionally by the conductor or accidentally by the jolting and swaying of the car; and it consists in connecting to the upper end of the trolley-pole a pair of arms or fingers one upon eitherside of the trolley--the upper of the arms may be slotted andslide upon grooved guides on the edge of the trolleybearings or upon bolts passing through slots in the arms, and so arranged as to permit the arms to be moved up and down within de sired limits, or the arms may be of curved form and slide up and down in the arcs of circles in guides similarly formed. When the form of the arms is that of the bell-crank lever, we construct them with a long arm,

which should be bent outward from the side of the trolley, and a short straight arm, to which we attach a cord and extend it downward to the car within easy access of the conductor, so that by pulling upon the cord the levers will be turned upon their pivots and the bent or diverging portionsof the arms will be moved above the top of the trolley with their inner limits near the respective edges of its periphery, and thus will readily catch the circuitwire and guide it into the groove of the trolley. When the arms are made in curved form, or with their lower portion slotted,we attach the cord to the lower portionof each and pass it over a pulley or guide attached above, near the end of the trolley bearings, and from thence extend it downward to the car, so that when the cord is pulled the arms move upward in curved lines or straight lines parallel to the axis of the pole, and the'diverging upper ends of the arms will be carried above the top of the trolley and serve in the same way to catch the circuit-wire and guide it to the groove therein. When the arms are constructed in the manner last described, in order to insure the return of the diverging portions to a position below the upper edge of the trolley as soon as the cord is released, we connect a spring witheach arm. 1

In the drawings forming apart of this specification, Figure 1 is an elevation of the upper end of a trolley-pole, the trolley, and the two bell-crank levers, with their diverging upper ends pivoted thereto and in the position which they occupy when the cord is pulled, viewed from a location at the rear of the car. Fig. 2

is a side elevation of the same construction,-

ward the front of the car, the dotted lines showing the position of the lever when the cord is pulled and the full lines its position when the cord is released. Fig. 5 is a front view illustrating the diverging arms when connected with the grooves in the trolleybearings by slots in their lower portion. Fig. 6 is a side view of the same, showing the manner in which the cords are connected to the lower ends of the arms and passed over pulleys near the top of the pole, and also the spring for holding said arms down below the upper edge of the trolley. Fig. 7 is a transverse sectional view across the slotted arms and the grooved guides on line X X in Fig. 6. Fig. 8 is a-rear view illustrating the diverging arms of curved form with the guides therefor and springs to draw them down when the cord is released.

Similar letters indicate the same parts of the device in the several figures.

- A is the trolley-pole; B, the trolley; O, the

trolley-axle; D, the diverging or spreading arms in the form of bell-crank levers; D, the diverging arms slotted in their lower part, so as to slide upon grooves in the trolley-bearings in lines parallel to the axis of the trolleypole; D the diverging arm in the form of a bell-crank lever, with the short arm 0 of the lever turned toward the front of the car, and f the arms of curved form. E is the cord for pulling the diverging arms to a position above the trolley; a, the guides or pulleys attached near the top of the trolley-bearings over which the cords E pass; I), the springs for drawing the diverging arms D f 2 down to their normal position. at are the two legs of the lower part of the arms D, formed by the slots to slide over grooves in the trolley-bearings e, and f is the spreading or diverging portion of the arm D. f is the spreading or diverging portion of the bell-crank-lever form of arms.

In order to limit the motion of the bell-crank levers when pulled upward by the cord E, we place a pin or stop 9 in the upper end of the trolley-bearings, against which the long arm of the lever will strike when it has been raised to the desired position. h are the curved guides attached to the trolley-bearings, in which the arms f slide.

It will be readily understood by reference to Figs. 1, 5, and 8 that when either one of the spreading arms is brought to a position beneath the circuit-wire and the trolley-pole then allowed to move upward by the action of the spring which holds the trolley in contact with the circuit-wire, the action of that spring will cause the wire to slide along the inclined surface of the spreading arm and drop into place in the groove of the trolley.

We claim- V 1. In combination with the trolley-pole of an electric car, a pair of diverging movable arms connected therewith, one upon either side of the trolley, with the inner limits or diverging parts of the arms in proximity to the respective edges of the periphery of the trolley, and a cord which passes through a guide near the end of the trolley-bearings attached to said arms, whereby their diverging portions will be moved to a position above the trolley when the cord is pulled, substantially as described.

2. In combination with the trolley-pole of an electric car, a pair of bell-crank levers pivoted thereto, one upon either side of the trolley, and with one arm of each lever bent outward therefrom and a cord attached to the other arm of the levers, whereby the bent arms of the lovers will be carried above the top of the trolley when the cord is pulled, and will drop below the top of the trolley when the cord is released, substantially as described.

3. In combination with ,the trolley-pole of an electric car, a pair of arms provided with a diverging portion at their upper ends and movably connected with the said pole, one upon either side of the trolley, a cord attached to said arms to move them in one direction upon the pole, and a spring to move them in the other direction when the cord is released, substantially as described.

BENTON o. RowELL. FRANCIS E. GALLOUPE.

Witnesses:

L. J. BELLEFLEUR, E. G. FITZGERALD.