US763820A - Trolley-pole. - Google Patents

Description

Nb. 763,820. PATENTED JUNE 28, 1904.

A. S. WEAVER.

TROLLEY POLE.

' APPLICATION FILED AUG. 1 .1 N0 MODEL.

2 SHEETS-SHEET 1.

5E7? IIIIIIIIIIIIII PATENTED JUNE 28, 1904.

A. S. WEAVER.

TROLLEY POLE.

APPLICATION FILED AUG 19 1903 2 SHEBTS SHEET 2.

N0 MODEL.

Invent-07':

0.. WASHIN ANDRUS s. WEAVER,

Patented June 28, 1904.

PATENT OEEIcE.

OF JOY, NEW YORK.

TROLLEY-POLE.

SPECIFICATION forming part of Letters Patent No. 763,820, dated June 28, 1904.

Application filed August 19, 1903.

To all whom it may concern.-

Be it known that I, ANDRUS S. WEAV R, of Joy, in the county of Wayne and State of New York, have invented a new and useful Improvement in Trolley-Poles, which improvement is fully set forth in the following speciiication and shown in the accompanying drawings.

My invention is an improved trolley-pole with associated parts for electric-railway cars, the same being hereinafter fully described, and more particularly pointed out in the claims, reference being had in this specification to the accompanying drawings, forming a part thereof.

The trolley-poles of electric-railway ears, as commonly made are held or urged upward with the trolley-wheels against the currentwires by means of springs near the decks of the cars, and when, as frequently occurs, a trolleywheel leaves the wire the free end of the pole will be thrown farther'upward by the spring in position to encounter the staywires or other parts of the overhead work as the car moves ahead, and so be liable to cause serious damage and loss.

The main object of my invention is to obviate this difliculty by providing mechanism whereby the free end of the pole will be quickly folded and drawn down out of the way of the overhead work immediately after the wheel jumps the wire and releases the pole.

Other objects and advantages of the invention will be brought out and made to appear in the specification following.

Figure 1 is a side elevation of the upper end of the trolley-pole and associated parts, showing the head, parts being shown in various positions by full and dotted lines and parts being broken away. Fig. 2 is a cross-section of parts on the dotted line 2 2 in Fig. 1. I, Fig. 3 is a plan of the lower side of the trolleyhead seen as indicated by arrow 3 in Fig. 1. Fig. 4: is a plan of the trolley-headand associated parts seen as indicated by arrow 4L in Fig. 1. Fig. 5 is a transverse section on the dotted line 5 5 in Fig. 4, further showing the form of the swivel-neck of the trolley-head. Fig. '6 is a longitudinal section of parts of the trolley-head on the dotted line 6 in Fig. 4,

further showing the construction.

Serial No. 170,029. (No model.)

Fig. 7 is a plan of the joint-section of the trolley-head seen as indicated by arrow 4.111 Fig. 1, the

cap of the swivel-bearing being removed to uncover inner parts. Fig. 8 is a side elevation of parts at the lower end of the pole, showing the swivel-base and superincumbent parts, parts being broken away and other parts shown in two positions each by full and dotted lines. Fig. 9 is a plan of the swivelbase and other parts near the deck of the ear, the forked holder being viewed as indicated by arrow 9 in Fig.8 and the swivel-base with actuating-spring and other parts seen as indicated by arrow 9% in Fig. 8, parts being broken away. Fig. 10 is acentral horizontal section of a part of the spring-barrel and the actuating-spring, taken on the dotted line 10 in Fig. 8, further showing the construction. Fig. 11 is a side elevation of the swivel-base and the base-block with supporting-timber above the deck of the car, parts being broken away. Figs. 8, 9, and 11 are drawn to scales smaller and Figs. 2, 5, 7, and 10 to various scales larger than that of Figs. 1, 3, and 4.

In the drawings, A is the body of the trol ley-pole, held at its lower end in a clamp-box B, Figs. 8 and 9, of a forked holder C.

- D is a horizontal swivel-base holding the upper parts of the mechanism, formed with short standards a (a, carrying a cross-rod 7), piercing the branches of the holder 0, as shown, the latter having motion in a vertical plane on the rod. This swivel-base is held pivotally in a base-block E of common kind, Fig. 11, resting in the usual manner upon a longitudinal plank or timber F above the deck of the car, the swivel-base having horizontal pivotal motion in the base-block.

G, Figs. 8, 9, and 10, is a horizontal springbarrel having a forked head m, with its branches pierced and held by the cross-rod b and held at its opposite end in a short standard cof the swivel-base D. The spring-barrel carries upon its exterior an actuated spring (Z and within it a block or body 0, having short'arms ff, projecting laterally in opposite directions through longitudinal slots g g in opposite sides of the barrel G. A chain it is secured to the block 0 and passing around upward within the body A. of the pole, as

' tion and novel action.

a carrying-wheel c on the cross-rod b has its opposite end secured by a coupling to the lower end of a pull-rod or cable Z, reaching shown. At its upper end the pull-rod l is secured to a swinging trolley-head H, constituting the upper end or terminal of trolleypole. (See Figs. 1, 3, 4, and 6.) The actuated spring (Z is confined at its ends between the arms ff of the block a and the forked head m of the spring-barrel, as shown, its action being to push back against the arms ff, and so bring a tension upon the chain it and the pull-rod Zto hold the upper end of the trolley-pole normally up with the trolleywheel against the current-wire a.

The trolley-head H is of peculiar construc- It consists, in addition to the trolley-wheel I, of a bifurcated holder K for the wheel and a joint-section L, connected with the body A of the pole by means of a pivot pin or bolt 0, so as to swing in a vertical plane and under certain circumstances double back upon the pole or become folded, as indicated by dotted position in Fig. 1.

By viewing Fig. Sit will be seen that by making the proper connections and by using an overpowering-spring-that is, a spring of suiiicient force power to support the pole A without forcing the spring inward, but leaving it entirely to be controlled by the operation of the pullcordthe pole A will be situated on the dotted lines in Fig. 8 and which may be drawn down and secured to the deck of the car when not in use and when relieved therefrom will instantly return thereto automatically, from which position the pole will be elevated by the action of the levered head H as it is drawn outwardly, which forces the draw-rod upward in the body of the pole, which actuates the actuating-spring d for folding the levered head H, but which cannot fold for the reason that the trolley-wheel I is placed under the current-wire and held down thereby to traverse it, which causes the actuated spring (Z to actuate and elevate the pole A to its normal altitude.

It will be seen by viewing Figs. 1, 4, and 6 that the bearing at P of the pull-rod l with the head H is above and when extended outward moves over and inside of the joint-bolt 0, as shown in Figs. 4 and 6, which thereby forms a levered bearing on the head H, so that the pull of the rod upon the levered head caused by the action of the actuating-spring (Z, as described, acts directly upon folding this levered head H inwardly and downwardly; but so long as the trolley-wheel I is in contact with the current wire it and pressed downward by the wire the head H cannot double back and the real action of the spring is then to press the wheel against the wire. If, however, this contact be broken, the spring will actuate and instantly fold the head inwardly and downwardly onto the body of the pole entirely out of the way of all overhead work, as shown by dotted lines in Fig. 1. The trolley-wheel I turns upon an axial bolt 1' in the bifurcated holder K, Figs. 1, 3, and 4, said holder being reduced to a cylindrical neck S, held to have a limited caster swivel action between the opposing parts of the joint-section L. This joint-section is formed with a middle extended part 2? between the parts a u of the upper divided end of the pole A and with other parallel extended parts or tongues Q) o overlapping the respective parts a u of the pole, all said parts t, u a, and '0 '0 constituting a five-part joint pierced by the common pivot-bolt 0. The neck S of the holder K being cylindrical permits of a limited caster swivel motion for said holder in the joint-section L, which is desirable at times in practice-as,for instance, when the car is rounding a curve. In such cases a side pressure is brought against the trolley-wheel, which, on account of the ability of the holder K to turn in its bearing in the joint-section, is more sensitive to such side pressure and yields more readily to it through short distances than does the more cumbersome swivel-base D with its load of weighty mechanism. To limit the extent of the swivel motions of the holder K in the joint-section L, the inner or lower end of the neck S is enlarged or expandedas, for instance, by being formed with a cross-bar 20, Figs. 2 and 7, occupying a cavity 00 in the joint-section L. This cavitym is formed as to length or extent to control the distance through which the holder K may turn one way or the other in the section. The removable cap 3/ of the joint-section L is formed with a longitudinal cavity 2, Figs. 2 and 4, to make way for the pull-rod Zwhen the trolley-head H is folded down, as shown by dotted lines in Fig. 1, a corresponding cavity a being formed in the neck S of the bifurcated holder K, as shown, for the same purpose. A pendent arm 6, Figs. 1 and 3, is pivoted be tween lugs or bearings d of the bifurcated holder K, to the free end of which the ordinary cord 0 is secured for the use of the conductor or other attendant on the car in handling and controlling the upper end of the trolley-pole and to turn the head H back to its extended position. (Shown by full lines in Fig. 1.) The arm b is formed with a stopfoot 0 in position to bear against the adjacent face of the holder K, as shown by dotted lines in Fig. 1, to hold the free end of the arm up away from the adjacent section L when in the folded position of the head H the cord 0 is pulled by the attendant. Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A trolley-pole having'an automatic folding head or part at its upper end, resting on, and joined pivotally to the body of the pole, and adapted to swing in a vertical plane upwardly and outwardly to be placed under the current-wire, to traverse it, and if relieved therefrom will instantly fold back onto the body of the pole automatically.

2. A trolley-pole having an automatic folding head or part at its upper end, resting on and joined pivotally to the body of the pole, and adapted to swing in a vertical plane inwardly and downwardly onto the body of the pole automatically, said head, comprising a wheel, to traverse the current-wire a bifurcated holder for the wheel and a joint-section carrying the bifurcated holder, the latter having a limited cast or swivel motion, in said joint-section.

3. A trolley-pole having a hollow body, a head carrying a trolley-wheel, joined pivotally to the body, a pull-rod within the body connected with the head and means for pulling said rod in a direction away from the head, and a pivotal cord-carrying arm, carried by said head, and formed with a stop-foot to limit its motion.

4. A trolley-pole constructed as described and shown, having a slotted spring-barrel, an actuated spring on the barrel, amovable block in the barrel, with arms to actuate the spring, and a chain for connecting the pull-rod with the block in the barrel.

5. A trolley-pole having a swivel-base, and a forked holder secured on the swivel-base, by a holding cross-rod for the forked holder, and trolley-pole, and a slotted spring-barrel mounted on the swivelbase.

6. A trolley-pole carrying a trolley-wheel, a forked holder for the trolley-pole, a pull-rod in the trolley-pole, a swivel-base with holding cross-rod, for the forked holder, a slotted spring-barrel on the swivelbase, an actuated spring on the barrel, a movable block in the barrel having arms through the slots to actuate the spring, and a chain connecting said block with the pull rod, as described and shown.

In witness whereof I have hereunto set my hand, this 15th day of August, 1903, in the presence of two subscribing witnesses.

. ANDRUS S. WVEAVER.

Witnesses:

E. B. l/VHI'ruoRE, MINNIE SMITH.

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