US622991A - Trolley - Google Patents

Description

No. 622,99I. Patented Apr. 11, I899. R. E. CARROLL.

TR0LLEY.'

{Application filed Nov. 19, 1898.} (No Modem mewfiif 15/ gazfizz' Czrroll.

NITED Y STATES PATENT @rrrcn.

ROBERT E. CARROLL, OF LIMA, OHIO" TROLLEY.

SPECIFICATION forming part of Letters Patent NO. 622,991, dated April 11, 1899.

Application filed November 19, 1898. Serial No. 696,909. (No model.)

To all whom it may concern: Be it known that 1, ROBERT E. OARRoLL,a citizen of the United States, residing at Lima, in the county of Allen and State of Ohio, have invented new and useful Improvements in Trolleys, of which the following is a specification.

This invention relates to trolleys for electric cars, and has for its object to provide improved means for permitting the trolley-wheel to readily and easily follow curves and other sinuosities in the overhead line-wire.

It also has for its object to provide improved means arranged in operative connection with the trolley in such manner that the trolley is eifectually prevented from jumping the linewire at crossings, curves, switches, and other points and is guarded and guided on the linewire in an efficient manner, while at the same time permitting the trolley to be readily engaged with and disengaged from the line-wire forreversing the car and the like.

It has for a further object to provide improved means for guiding the trolley onto the wire in reversing or setting the trolley; and, finally, it has for its object to improve and simplify the construction and render more ef-, ficient the operation of this class of devices generally.

To these ends my invention consists in the features and in the construction, combina tion, and arrangement of parts'hereinafter described, and particularly pointed out in the claims following the description, reference being had to the accompanying drawings, forming a part of this specification, Wherein Figure 1 is a side elevation of my improved trolley, showing the same in place on the linewire. Fig. 2 is a plan View, partly in section. Fig. 3 is a rear elevation.

Referring to the drawings, the numeral 1 yoke 2 is reduced and is pivoted at 6 in the bifurcated upper end 7 of the trolley-pole in such manner that the yoke carrying the trolthe rim of the trolley-wheel. -wheels are broad at their upper sides and ley-wheel may move laterally relatively to the trolley-pole. The extreme lower end of the shank 5 is recessed, as at 8, forming shoulders 9, which are adapted to abut a spline 10 on the trolley-pole and limit the movement of the yoke in either direction. Attached at one end to the trolley-pole is a leaf-spring 11, the other or free end of which is arranged between two lugs or projections 12 on the yoke, the arrangement being such' that said spring operates to normally hold the yoke in alinement with the trolley-pole. If'desired, two such springs may be employed, one on each side of the trolley-pole; but one spring will be found amply sufficient under all ordinary circumstances.

The operation of this part of the invention is asfollows: The trolley-wheel travels on and follows the line-wire in the usual manner when the latter is straight. When a curve, bend, or angle in the line wire is reached, however, the spring 11 yields and permits the yoke to swing to one side about its pivot 6 to accommodate the trolley-wheel to the deflection of the line-wire; but the instant the trolley-Wheel reaches a straight portion of the line-wire the spring causes the yoke to resume its normal position in alinement with the trolley-pole.

Formed on the opposite sides of the yoke 2 are lugs 13, between which, on each side of the yoke, are pivoted arms 14 15, in the upper ends 14 of which are journaled guide and guard disks or wheels 16. I of the disks or wheels incline outwardly in opposite directions, so that the disks correspondingly incline in opposite directions, and the arms are of such length that the disks, when the trolley is in place on the line-wire, lie directly in front of the upper portion of The disks or narrow at their lower sides, in such manner that the broad upper side portions project slightly over the upper part of the line-wire and effectually guide the trolley-wheel and hold it to the line-wire, thus effectually preventing the trolley from jumping the latter at crossings,-switches, and other points.

The arms 14 15 can be oscillated on their pivots for the purpose of spreading their up- The journals 17' sired to reverse the trolley, and this may be conveniently accomplished in the manner and by the means hereinafter explained. The lower portions of the arms are provided on their inner or proximate sides with lugs 18, over which are arranged the opposite ends of a compressible coiled spring 19. The spring 19 exerts a constant pressure to force the lower ends 15 of the arms apart, and consequently the upper ends 14 together, thus holding the guide and guard disks to the linewire.

Loosely journaled on the opposite ends of the shaft 3 are arms 20, the upper ends 21 of which diverge or are inclined outward, and their lower ends are connected by a swinging bail 22, the arms being so proportioned that when the trolley is in normal position.that is to say, in engagement with the line-wire the upper ends of said arms will swing backward and downward by gravity, so as to avoid all liability of striking the line-wire supports, cross-Wires, switches, and the like.

To operate the guide-arms and the arms carrying the guide and guard disks, I provide bers and 26 to the ends15 of the arms 14 15.

In the operation of disengaging the trolley from and engaging it with the line-wire to reverse it the operator in pulling upon the cord 23 to draw the trolley down from the line-wire automatically swings the guide-arms 20 up and the guide and guard disks apart, the member 24 drawing down the bail connected to the guide-arms and the members 25 and 26 drawing the ends 15 of the arms 25 and 26 toward each other. The parts are held in this position while the operator swings the trolley-pole about on its pivot to reverse the trolley, so that the diverging ends 21 of the arms 20 are in position to guide the trolley-wheel onto the line-wire. When the operator has swung the trolley into position beneath the line-wire, however, and releases the cord, the spring 19 immediately causes the guide and guard disks to embrace the line-wire, while the guide-arms drop back and down by gravity.

Having described my invention, what I claim is- 1. The combination with a trolley-pole and a trolley-wheel support on the upper end thereof, of arms pivotally mounted on the opposite sides of the'trolley-wheel support below and in advance of the trolley-Wheel and provided at their upper extremities with angularly-arranged guide and concavo-conical guard disks arranged in front of the trolley-wheel and operating to hold the latter to the line-wire, and means for spreading the upper ends of said arms apart to disengage the disks from the line-wire, substantially as described.

2. The combination with a trolley-pole, and a trolley-wheel supported on the upper end thereof, of arms pivotally connected intermediate their ends with the wheel-support, be-

low and in advance of the trolley-wheel, concavo-conical guard and guide disks journaled, respectively, on the 'upper ends of the arms in proximity to the grooved periphery of the trolley and constructed to project partially over and bear against the sides of the line for guiding the trolley -wheel and prevent it jumping the line, a coiled spring arranged between the lower ends of the arms to press their upper ends, with the guard and guide disks, toward each other, and means for spreading their upper ends apart, substantially as described.

3. The combination with a trolley-pole, and a trolley-wheel supported on the upper end thereof, of arms pivotally connected intermediate their ends with the wheel-support guard and guide disks journaled, respectively, on the upper ends of the arms in proximity to the trolley and constructed to project over and to bear against the sides of the line, a coiled spring arrangedbetween the lower ends of the arms to press their upper ends, with the guard and guide disks, toward each other, and a cordconnected with the lower ends of the arms for spreading the upper ends thereof apart, substantially as described.

4. The combination with a trolley-pole and a trolley-wheel supported on the upper end thereof, of arms pivotally mounted on the opposite sides of the trolley-wheel support and provided at their upper extremities with angularly-arranged guide and guard disks arranged in front of the trolley-wheel and operating to hold the latter to the line-wire, a

spring arranged between the lower ends of said arms and operating to press their upper ends, with the guide and guard disks, toward each other, guide-arms pivoted intermediate their ends on the opposite ends of the axis of the wheel, said guide-arms diverging at their upper ends, a bail connecting the lower ends of said guidearms, the arrangement being such that the upper ends of the guide-arms drop down and back by gravity, and a cord provided with three furcated members, two of which are respectively connected with the lower ends of the arms carrying the guide and guard disks and the third with the bail on the guide-arms, whereby the guide-arms may be elevated and the guide and. guard disks simultaneously spread apart by said cord, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

ROBERT E. CARROLL.

Witnesses:

EDWIN BLANK, H. P. WILLIAMSON.

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