US752437A - Overhead-trolley guide - Google Patents

Description

No. 752,431. PA'TENTED FEB. 16, 1904. c. w. BURKHEAD.

OVERHEAD TRDLLEY GUIDE. APPLICATION 21mm M16116. 1902. nmwnwnn our. 2a, 1903.

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UNITED STATES Patented February 16, 1904.

PATENT ()EEIGE.

OVERHEAD-TROLLEY GUIDE.

SPECIFICATION formingvpart of Letters Patent No. 752,437, dated February 16, 1904.

Application filed August 16,1902. Renewed Qctoher 22, 1903. Serial No. 178,155- (No model.)

To all whom it may concern:

Be it known that I, CHARLES W. BURKHEAD, a citizen of the United States, residing at Madisonville, in the county of Hamilton and State of Ohio, have invented a new and useful Improvement in' Overhead-Trolley Guides, of which the following is 'a specification.

This invention is an improved construction of guide to be used in connection with an overhead trolley, the object being to provide a guide to prevent the trolley jumping the wire when passing crossings, switches, and the like and also to prevent the said trolley jumping the wire at any other time.

Another object of the invention is to provide a guide which will operate to prevent the trolley jumping the wire when the said trolley is moved rearwardly instead of forwardly, as it frequently happens that it is "necessary to back a car across a crossing wire, and, so far as I am aware, no trolley-guide will operate while moving rearwardly.

Another object is to provide a trolley-guide which will prevent the trolley-wire catching or binding between the trolley wheel and guide.

With these various objects in view the invention consists in the novel features of construction and combination and arrangement, all of which will be fully described hereinafter and pointed out in the claims.

In the drawings formingapart of this specification, Figure 1 is a perspective view of the trolley-guide constructed in accordance with my invention. Fig. 2 is a side View, and Fig. 3 a top plan view, of the same.

Inasmuch as my invention is applicable to all kinds of overhead trolleys, I have shown an ordinary trolley-pole A, carrying an ordinary grooved trolley-wheel B, and my guide C is pivotally connected to the trolley-pole by the bolt D, which also serves as the pivot-bolt for the trolley-wheel B. In constructing my guide I employ two arms C, which are arranged upon opposite sides of the bolt and pivoted to the upper end of the trolley-pole by means of the bolt D, as just described, and in practice I prefer to connect the lower ends of said arms as shown at C and, if desired, the

said arms and connection may be formed of a .singlepiece.

A coil-spring E, attached to the trolley-pole and connected also to the arms C at their juncture, serves to hold the said arms in their .proper position, as indicated in Figs. 1 and 2,

said angular portions of the arms I prefer to connect the rear ends of the arms to the pivotal portion by means of a member or arm 0*. Thus it will be seen that the guide-arms beyohd the pivotpoint are in forms of triangular frames, the inclined sides of which engage the cross and switch wires and serve to guide the trolley along its proper wire, and it is obvious from the construction herein shown and described that the said guide will operate when moved in a rearwardly direction equally as well as when moving in'a forward direction. Whenever the oblique sides of the triangular frames come in contact with a cross or switch wire or other object, the said arms are depressed, extending the spring E, and the moment the wire or other object is passed the said spring acting upon the connection C will immediately throw the free end of the guide up again to its normal position, thus always holding the apeXes of the triangular frame upon the trolley-wire, so that the said guide will always operate to guide and direct the movement of the trolley.

In order to prevent the trolley-wire binding between the guide and wheel, Ithicken the trolley-arms upon the inner sides, as shown at C so that they nearly contact with .the upper edges of the trolley-wheel, and thus serve to guide or conduct the wire directly into the groove of the wheel, inasmuch as the space between the edges of the wheel and the en larged portion of the arms is too smallto per- 5 portions of the arms I prefer to make the guide in this manner, and as a matter of economy and also of strength I also prefer to unite the arms C by an integral connection, as shown in Fig. 1 at C Having thus fully described my invention, what I claim as new, and desire to secure-by---- Letters Patent of the United States, is

1. In a guide for overhead trolleys, the combination with a trolley-pole, of atrolley-wheel thereon, a pair of parallel, rearwardly exten'ding arms connected together at their forward ends and adapted to inclose a trolleywheel between them, said arms being pivoted adjacent the wheel, and being shaped rearward of the wheel to form triangular-shaped frames, the upper members of said frames extending upwardly and beyond the wheel and means for connecting theforward portion of the arms to the pole.

2. A guide for overhead trolleys, comprising a pair of arms pivoted as described and yieldingly connected at their forward ends to thetrolley pole or harp, the rear portion of said arms being bent downwardly and rearwardly, and the brace or connecting member extending from the pivot-point ofthe arm to their extreme rear ends, as specified.

3. A guide for overhead trolleys, comprising a pair of arms united at their forward ends, the rear portions of said arms having therewith angular-shaped frames, the apexes of which project above the upper edge of the trolley-wheel and means for connecting the forward ends of the arms to the trolley pole or harp, as specified.

4. The combination with the trolley pole and wheel of the arms pivoted upon opposite sides of the said pole and wheel, said arms being united at their forward ends, a spring connecting the forward ends of the arms to the trolley pole or harp, and said arms projecting upwardly beyond the trolley-Wheel and then bent downwardly and rearwardly and a connecting member or brace connecting the ends of said downwardly-extending portions and the central portions of the arms, as specified.

CHARLES W. BURKHEAD.

Witnesses:

GEORGE KAPPES, CHARLES DONDERS.

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