US778520A - Trolley. - Google Patents

Description

No. 778,520. y PATENTED DEC. 2v, 1904. J.. s. WECKMAN.

TROLLEY.

APPLIUATION FILED SEPT.22.1904.

UNTTE STATES Patented December 27, 1904.

JOHN S. VEOKMAN, OF OARNEGIE, PENNSYLVANIA.

TROLLEY.

SPECIFICATION forming part of Letters Patent No. 778,520, dated December 27, 1904. Application iiled September 22,1904. Serial No. 225,405.

To @ZZ 1071.0772, it 77u03/ concern:

Be it known that I, JOHN S. VECKMAN, a citizen of the United States, residing at Carnegie, in the county of Allegheny and State oil Pennsylvania, have invented certain new and useful Improvements in Trolleys; and I do hereby declare that the following is afull, clear, and exact description of the same, reference being had to the annexed drawings, making a part oi' this specification, and to the figures of reference marked thereon, in which- Figure l is a view showing the top o'r upper end of the trolley-pole and illustrating the trolley-head and wheel, showing the wheel in contact with the trolley-wire. Fig. 2 is a side elevation showing a portion oi' the car and illustrating the trolley-wheel in proper contact with the trolley-wire. Fig. 3 is a view showing a portion oi' a trolley-wire, the trolleypole, and head, showing the trolley-Wheel disengaged i'rom the seat of the groove of the trolley-wheel.

The present invention has relation to trolleys; and it consists in the different parts and combination otl parts hereinafter described, and particularly pointed out in the claims.

Similar numerals of reference indicate corresponding parts in all the figures ot' the drawings.

In the accompanying drawings, l represents the pole, which may be ot' the usual construction and ot' a length sutlicient to properly engage the wheel 2 with the trolley-wire 8. To the top or upper portion of the pole is pivotally attached the head A, which head consists or is provided with the diverging arms 5, to which diverging arms are pivotally attached the spaced plates 6, which spaced plates are continued rearward to provide guard-arms 7, said guard-arms being' formed integral with the plates 6. For the purpose of providing a pivotal connection between the diverging arms 5 and the plates 6 the rivet 8 is provided.

To the head 4 is connected the spring 9, which spring is attached to the head I at one end and its opposite and free end connected to the link l0, which link is connected to the lower ends ot' the plates 6 by means ot' the rivet or cross-bolt 11.

For the purpose of holding the plates 6 in proper spaced relation with each other the cross-brace l2 is provided.

The trolley-wheel 2 is mounted upon the axle 13, which axle is preferably held in proper place by means of suitable cotters 14.

To the plates 6 is pivotally attached the link l5, to which link the trolley-rope 16 is attached. y

The action of the spring is such that it will have a tendency to hold the side plates 6 in the position illustrated in Fig. 3; but when the trolley-wheel 2 is held in proper contact with the trolley-wheel 3 the spring 17 or its equivalent will have a tendency to counteract the spring 9 and depress the side plates 6, together with the trolley-wheel 2.

For the purpose of limiting the movement of the side plates 6 they are provided With the flanges 18, which iianges limit the upward movement oi' the side plates 6 and the downward movement of said side plates.

The guard-arms 7 when brought into the position illustrated in Fig. 2 will pass under the span-wires or trolley-Wire supports, and when the trolley-wheel 2 is in proper contact with the trolley-Wire 3 the normal position oi' the arms 7 is that shown in Fig. 2.

It' i'or any reason the trolley-wheel 2 should become disconnected from the trolley-wire, the spring 9 will automatically move the side plates 6, together with the trolley-wheel 2, into the position illustrated in Fig. 3 and the guard-arms prevent the trolley-wheel from becoming disengaged from the trolley-wire.

It will be understood that as the car is moved forward any contact with the arms 7 will turn the arms into the position illustrated in Fig. 2, thereby allowing said arms to pass under the trolley-wire supports; but in the event the car is running backward the arms when elevated will haveatendency to engage the trolley-Wire supports, and for the purpose of overcoming this objection the trolley-rope 16 is connected to the side plates 6, so

move the arms 7 downward and allow them to pass under the trolley-wire support, the trolley-wheel 2 remaining in contact with the trolley-wire except at such times when it is desired to entirely disconnect the trolley-wheel that a downward pull of the trolley-rope will 9 from the trolley-wire, and at such times of course the trolley-pole l is pulled down a sufficient distance to entirely disengage the trolley-wheel 2. from the trolley-wires.

In use the spring I7 should have a stronger tension than the spring 9, so that the power of the spring 1T will overcome the action ot' the spring 9, but leave saidspring` 9 to automatically operate the side plates 6, together with the trolley-wheel 2, so as to overcome any jumping' of the trolley-wheel from the wire and at the same time hold the trolley-wheel in proper contact regardless of the slight vertical movements of the trolley-wheel.

In some instances it may be desirableto invert the pole l#that is to say, turn the pole axially-andin order to accomplish this without changing the relative position of the head 4 said head is pivotally attached to the pole and held in fixed relation therewith by means of the set-screw I9.

Having fully described my invention, what I claim as new, and desire to secure byLetters Patent, is-

l. rIhe combination ofapole, ahead secured thereto and provided with arms, plates held in spaced relation to eaoh other, a trolley-axle and a trolley-wheel mounted thereon, said axle and trolley-wheel carried by the plates, and the plates extended to 'form guide-arms, iianges formed upon the plates and adapted to limit the movement of the side plates, a spring secured to the head and operatively connected to the side plates having attached thereto the trolley-rope, substantially as and for the purpose specitied.

2. The combination of a trolley, a head secured thereto, spaced plates pivotally attached and carried by the head, said plates provided with stop-shoulders, a trolley-wheel carried by the plates, a spring secured to the head and operatively connected to the plates and the trolley-rope carried by the plates, and the plates provided with rearward extensions adapted to form guards, substantially as and for the purpose speciiied.l

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

JOHN S. I/VECKMAN.

Writnesses:

L. H. WALTER, B. J. KERK.

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