US693309A - Trolley-head. - Google Patents

Description

"0.693309. 5 Patented Feb. u, I902.

I u. A. PETRE.

TROLLEY HEAD.

(Application filed May 7, 1901;

(No Model.)

UNITED STATES OFFICE.

PArEfirT DOUGLAS A. PETRE, OF DULUTH, MINNESOTA, ASSIGNOR OF ONE-FOURTH I TO HANSEN SMITH, OF DULUTH, MINNESOTA.

TROLLEY-HEAD.

SPECIFICATION forming part Of Letters Patent No. 693,309, dated February 11, 1902. Application filed May 7, 1901. Serial No. 59,171. (No model.) I

To aZZ whom it may concern:

Be it known that I, DOUGLAS A. PETRE, a citizen of the United States, residing at Du luth, in the county of St. Louis and State of Minnesota, have invented certain new and useful Improvements in Trolley-Heads; and I do hereby 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 appertains to make and use the same.

My invention relates to improvements in trolley-heads, and more particularly to that class adapted to permit of the trolley-wheel closely following the electric conductor without regard to the lateral movement of the trolley-pole.

One object of the present invention is the provision of means adapted to be interchangeably employed upon any of the trolley-poles now in use, whereby the trolley-wheel may have a lateral swing independent of said pole.

It also has in view the production of such a trolley-head as will be adapted for use on all of the common forms of trolley-poles and so constructed that the wheel carried thereby may have both a lateral and a partial rotary movement, thereby permitting said wheel to closely follow the trolley-wire around curves or at other points without regard to the lateral or twisting movement of the saidpole, the said movement of the trolley-head being independent of the pole.

It further has as an object the production of a trolley-head whose wheel is free to closely follow the trolley wire and which carries means for removing ice or other foreign mat ter from said wire.

With these and other objects in view it consists of certain constructions, combinations, and arrangements of parts, as-will be hereinafter more fullydescribed and claimed.

In the accompanying drawings, Figure 1 represents a view in side elevation of a trolley-head embodying the features of the present invention. Fig. 2 represents a longitudinal central vertical section of the parts shown in Fig. 1 on line 2 2 thereof. Fig. 3 represents in side elevation the laterally-swinging member with a slightly-modified form of rotating member applied thereto, and Fig. 4

represents an enlarged detail view of the laterally-swinging member.

Referring to the drawings by numerals, 1 indicates any preferred form of trolley-wheel journaled upon a suitable shaft, as 2, which finds bearings, as at 3 3, in the fork 4. On the inner faces of the arms of fork 4 are secured in any preferred manner springs, as 5 5, which are preferably apertured at their upper ends, as at 6 6, for permitting the shaft 2 to be passed therethrough, whereby said springs may press against the wheel 1 and normally hold the same centrally of said fork 4, but permitting of lateral movement thereof. Upon the front face of fork 4 are preferably formed integral or detachable lugs, as 7 7, the

upperends of which are adapted to carry a suitable pin, as 8, about which is pivotally secured the end 9 of an arm, as 10, the upper end of which arm is provided with an integral or removably-affixed lug, 'as 11, whose outer face is concaved and preferably corrugated, as at 12, whereby in operation when swung to the position shown in full lines in Fig. 1 it is adapted to remove ice or other foreign matter from the trolley-wire and when swung downward to the position shown in dotted lines in Fig. 1 will be out ofoperation and will not interfere with the operation of the other parts of the improved trolley-head.

Downwardly-exten'ding springs, as 13 13, are preferably removably secured to the sides of fork 4 and may be of any preferred shape, size, or material. The sides of said fork 4 near the lower end thereof are cut away, leaving opposite curved shoulders, as at 14-14, and a central flat extended portion, as 15, whose lower end is preferably curved, as seen in dot ted lines in Fig. 1, as at 16. A laterally-swinging member, as 17,is adapted to be pivotally secured to'the lower end of fork-4. The upper end of said member 17 is preferably bifurcated, and the ends of the arms thereof are preferably curved, as at18 18, to correspond with the curve of shoulders 14. The arms of the bifurcated portion of member17 are adapted to be passed on either side of extension 16 and a suitable bolt, as 19, passed through the parts for pivotally securing the same together, whereby said member 17 will be held normally in line of fork 4by means of springs 13 13,

but may be pivoted laterally against their spring-pressure.

The lower end of member 17 is provided with an annular shoulder, as 20, leaving a downwardly-extending cylindrical portion, as 21, which in operation is adapted to be held in the upper end of the central bore 23 of lower member 22. For securing the extension 21 in position within bore 23 is provided any suitable removable pin or lug, as 24:, the head of which is permitted to play in an elongated slot, as 25, in the wall of member 22, whereby member 17, and thereby wheel 1, is capable of a partial rotary movement. To govern this lug 24C in its play and to maintain the parts in line normally, a spring-collar, as 26, is secured at the rear of member 22 and passes about said member, so that its free ends rest against lug and prevent any movement of the same, except against spring-pressure. It will bereadily seen that any form of spring may be used for governing the play of lug 24, as illustrated in Fig. 3, which in this instance assumes the form of oppositely-arranged spiral springs, as 26 26, whose outer ends are pressed against the opposite end walls of slot 25 and whose inner ends engage lug 24. The bore 23 at the lower end of member 22 is adapted to fit over and securely retain my improved trolley-head upon the outer end of any of the common forms of trolley-poles now in use. Of course any preferred auxiliary securing means may be employed for making firm the parts.

It is obvious that I may alter the minor details of construction and arrangement and the size and shape of parts without in the least departing from the spirit and scope of the present invention, and with particular reference to the means for securing springs 13 13 to fork 4 it will be readily apparent that I may secure the same in any preferred manner and preferably by means which will permit of their removal and renewal--as, for instance, any convenient form of clamps or bolt or set-screws ordovetail or other grooves may be employed.

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

1. A trolley-head, comprising in its construction, means for supporting a trolleywheel, and means for permitting said wheel to follow its trolley-wire, comprising an intermediate member forming an extension of the trolley-pole pivotally secured to the wheelsupporting means, springs governing said pivoted means and a swivel connection between said intermediate member and the trolley-pole for permitting a partial rotation of said pivotal means about the longitudinal axis of the trolley-pole, substantially as described.

2. A trolley-head, comprising in its construction a fork, an ice-remover carried by said fork, means for permitting said remover to follow a trolley-wire comprising a member pivoted to the said fork and swiveled to the trolley-pole so as to turn about the longitudinal axis of the pole, said member form ing an extension of said pole, the said fork being also adapted to carry a trolley-wheel, substantially as described.

The combination with a trolley-head, of means carried thereby for removing ice from a trolley-wire, comprising lugs carried by the fork of said head, an arm pivoted to said lugs, and a block or enlarged portion at the outer end of said arm provided with a coucaved,

corrugated face adapted to contact with said wire, when in operation, whereby said ice will be removed therefrom, and means for connecting the fork with the trolley-head so as to have a pivoted action and a swivel action, the construction being such that when said block is thrown out of operation the said arm will be folded downward and lie longitudinally of said head, substantially as described.

4. A trolley-head, comprising in its construction a fork for supporting a trolley-wheel, a wheel carried thereby, means for maintaining said wheel normally centrally of the arms of said fork and at the same time permitting a lateral movement of the wheel, and means for permitting the fork to have a lateral pivoted motion and a rotary movement about its longitudinal axis, substantially as described.

5. A trolley-head comprising in its construction a trolley-wheel fork, provided with curved shoulders near its lower end, means for permitting lateral movement of said fork, comprising a bifurcated member pivoted to said fork, the upper ends of the arms of said bifurcated member being curved to register with the said curved shoulders, and downwardly-extendin g springs secured to the sides of said fork and inclosing the sides of said bifurcated member,whereby the same will. be held normally in line with said fork, but may be moved laterally against the pressure of said downwardly extending springs, and means for permitting a rotary movement of said fork, substantially as described.

6. A trolley-head, comprising in its construction a trolley-wheel fork, means for permitting a lateral movement of said fork, comprising a pivoted member secured to said fork, and means for permitting a partial rotary movement of said fork,com prising a tube fitted over the lower end of said pivoted member, a spring-controlled lug secured to the lower end of said pivoted member and playing in a slot in the wall of said tube, and means for securing said head to a trolleypole, substantially as described.

7. A trolley-head, comprising in its construction a trolley-wheel fork, means for permitting a lateral movement of said fork, comprising a pivoted member secured thereto,and means for permitting a rotary movement of said fork, comprising a tube adapted to surround the upper end of a trolley-pole and to have its upper end passed over the lower end of said pivoted member, thesaid tube being ing, said pivoted member and fork in line, 10 formed with an elongated slot in its wall, a substantially-as described.

lug secured to the lower end of said pivoted In testimony whereof I hereunto affix my member and extending through said slot, and signature in presence of two Witnesses.

a sleeve-spring secured to said tube and passingabout thesameandhavingits ends pressed DOUGLAS PETRE against the oppositeksides of said 1ug,whereby Witnesses:

said tube and pivoted member will be nor- JAMES T. WATSON,

mally in line, and means for normally hold- JOHN J. KUSEt

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