US933208A - Trolley-pole. - Google Patents

Description

S. SPEER.

l TROLLEY POLE. APPLICATION FILED MAR. 29', 1909.

933 208.l e Patented Sept. 7, 1909.

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nventoz mnnsw. B. GRAHAM e0. Puofmnmlmvnfns. wm la VSAMUEL SPEER, OF PITTSBURG, EENNSYLVANIA.

VTROLLEY-POLE.

Sp'ccication of Letters Patent,

Patented Sept. '7, 1909.

Application ined Marchas, 1909. serial No. 486,468.

To all whom 'it may concern:

Be it known that I, SAMUEL SPEER, a citizen of the United States, residing at Pittsburg, in the county o'frillegheny and State of Pennsylvania, have invented certain new and useful Improvements in Trolley-Poles; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertaiiistomake and use the saine, reference being had to the accompanying drawings, and tothe ligures of reference marked thereon, which form a part of this specification. Y

My invention relates to trolley-poles `for conducting electric currents roinoverliead wire to the motor t'eed wires of the car, the object being to provide a pole capable of yielding vertically as 'well as in the direction of travel, and which can be raised and lowered from one end of the carby the operation of a hand-lever.

Vith the above objects in view my invention consists in the peculiar construction and combination of parts as will be hereinafter more particularly `described in the specification and pointed out in the appeiided claims.

In the accompanying drawings forming a part of the specification, Figure I, is a side elevation of a portion of the car top having mv improved trolley-pole connected thereto and in operative engagement with the trolley-wire. Fig. II, is a i'ear elevation oit' the pole disconnected from the car, and Fig. III, is an enlarged side elevation of the trolleywheel and attending trolley-guides, detached from the pole, the detail portions of the structure being designated in the several views by nuineials of like character.

In carrying out my invention, I employ a plate 1 secured to the top of the car 2, and pivotally secure to the transverse pin 3 carried by the pla-te, the lower end of the tubular trolley-pole section t, said,pole section being further secured to the ends of the said plate, from an intermediate point thereof, by means of the downwardly`- disposed spiral springs 5, so that the same may yield in either a forwardly or rearwardly direction and at the saine time be under tension. Loosely iitted at its lower end into the said 'tubular section in the upper trolley-pole section G which carries a spiral spring 7 thereabout to engage the .upper end of the lower section so that it may yield to vertical movement, said upper pole section carrying a trolley-wheel 8 for engagement with the trolley-wire 9.` This upper section 0In the pole has suspended upon its wheel axle, one at each side of the wheel, a giavitatiiig guide 10, the upper end of which inclines toward and projects over the edge of the wheel so as to guide the wheel to the trolley-wire in replacing sanie, the lower end of said guide being weighted so as to normally assume a vertical position at all times regardless of the inclination of the pole. At each side o1 this trolley-pole proper, is arranged a parallelogram, composed of four like members, 12, 13, 14; and 15 pivotally connected at their intermediate and end meeting points so as to be capable of vertical adjustment, the upper ends being pivoted upon the wheel axle and the lower ends to the aforesaid transverse pin 3 carried by the plate l. Y

Each of the pai'allelograms has connected to its intermediate pivotal points a pair of vlinks 15, the meeting ends of which links are pivotally connected to the upper end of the rod 1G which has its lower end likewise connected to links 17 and 18, said. link 17 being arranged at its opposite end upon the aforesaid pin 3 and the lat-ter to the handlever 18 which is fulcrumed upon the forward end of the car, by means of the rod 19.

In practice, the trolley pole and attending connections assume the position shown by the full lines at Fig. I, and should it accidentally, or otherwise, be removed from its position of service the lever 18 is pulled, causing the said poleand attending parts to assume the position shown by the dotted lines on said Fig. I, and upon releasing the said hand-lever it resumes its operative position, but should the trolley-wheel not be exactly in a vertical line beneath the trolleywire, said wire will be engaged by either one of the gravitatingguides and caused to be guided to the wire.

In adjusting the trolley-pole so as to bring the wheel into engagement with the trolleywire the guides will not only operate to direct the wheel to the wire, but when in practice the said guides will not interfere with the giiy-wires they being capable of adjusting themselves to pass under the guy-wires vwhen encountered, in either direction of travel, as will be apparent from the view shown at Fig. III, in which the guide 1s shown in normal position as well as in abnormal iii passing under the guy-wire, the

latter positions being shown by dotted lines,

said guygvires being designated by the nnmeral Q0. y

Having` thus shown and described my invention, what I claim and desire to protect by Letters Patent, is:

l. A trolley-pole, comprising a trolleypole proper formed of two sections, the nppersection teleseoping into the lower section and carrying av trolley-wheel at its upper end and said lower section pivotally secured at the car top so as to permit the pole adjnstably inelining toward either end of the car, a pair of spiral-springs each connected to an oppositeside ofthe pole in the direction ot' its inclination each being` disposed at an angle and connected at their lower ends at the car top so as to place tension on the n'ioveinent of the pole in either direction, a spiral spring carried by the upper' section of the pole and engaging the upper end of the lower section so as to place tension on the vertical movement thereof, aparallelogrmn disposedat each side of the trolley-pole and adjustable therewith the outer extremities being pivotally connected to the axis of the trolley-wheel and that of the pole base, a

pair of links connecting the intermediate i' pivotal points of the parallelogram, n rod connecting the meeting ends of said links extending downwardly to and connecting with a link carried by the pivot of the trolley base, a hand-lever carried upon the front ot the car top, and a rod connecting the hand-lever with said rod and link.

2. A trolley-pole, comprising a trolleyl y Y 933,208

pole proper formed of two sections, the npper section telescoping into the lower seetion and carrying a trolley-wheel at its npper end and said lower section pivotally secured at the ear top so as to. permit the pole adjnstably inelining toward either end ot the car, a pair of spiral-springs each connected to an opposite side of the pole in the direction of its inclination each being disposed at an angle and connected at their lower ends to the car top so asto place tension on the movement of the pole in either direction, a spiral-spring carried by the upper section of the pole and engaging the upper end of the lower section so as to place tension on the vertical movement thereof, a parallelogram disposed at each side of the trolley-pole and adjustable therewith the outer extremities being pivotally connected to the axis of the trolley-wheel and that of the pole base, a pair of links connecting the intermedia-te pivotal points of the parallelogrznn. a rod connecting the meeting ends of said links and extending downwardly to and connecting with a link carried by the pivot of the trolley base, a lever carried by the front oi the ear top, a rod connecting the hand lever with the said rod and link, and members suspended upon the trolley-wlnel axis to guide the wheel to the wire.

In testimony whereof, I aiix my signature, in presence of two witnesses.

SAMUEL SPEEl-l.

litnesses R. S. HARRISON,

PAUL SIGAL.

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