US618231A - Trolley-stand - Google Patents

Description

Patented Jan. 24, I899.

D. MOYER.

TROLLEY STAND.

(Application filed Ap (No Model.)

llrTTTE STATES PATENT EErcE,

DANIEL MOYER, OF ALLENTOYV N, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO FREDERICK OONLIN, OF BETHLEHEM, PENNSYLVANIA.

TROLLEY-STAND.

SPECIFICATION forming part of Letters Patent No. 618,231, dated January 24, 1899.

Application filed April 121 1898. Serial No. 677,349. (No model.)

To all whom it may concern:

Be it known that I, DANIEL MoYnR, a citizen of the United States, residing at Allentown, in the county of Lehigh, State of Pennsylvania, have invented certain new and useful Improvements in Trolley-Stands, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to trolley-stands, and is particularly adapted for use in connection with the trolley-pole used to establish electric contact with an overhead conductor supplying current for an electric railway.

The invention has for its object to provide an improved construction by which the stand may be completely reversed and in which independent means are used to produce the necessary tension upon the trolley-pole.

The invention has for a further object to relieve the tension devices from all strain when the pole is in a vertical position and to bring into operation only one set of tension devices when the pole is in use, whereby in the event of a breakage of the parts the pole may be reversed and the opposite set of tension devices brought into operation.

A further object is to provide a construction by which the pole may be depressed into a substantially horizontal position in order to pass beneath a low bridge or car-barn door.

Other objects and advantages of the invention will hereinafter appear in the following description, and the novel features thereof will be particularly pointed out in the appended claims.

In the drawings, Figure 1 is a side elevation of the trolleystand. Fig. 2 is an end elevation of the same. Fig. 3 is a detail perspective of the levers carried by the pole-socket, and Fig. 4.- is a detail horizontal section showing the means for securing the pivoted frame upon the post carried by the ear-roof.

Like letters of reference indicate like parts throughout the several figures of the drawings.

The letter A designates a base secured to the roof or other portion of a car in any suit his post is provided adgroove A and forms a pivotal support for the block B, which carries the oppositely-extending supporting=frames B. These frames are secured to the block 13 by any suitable means'for instance, bolts B -and the opposite ends of the frames B are provided with sockets B The block B is pivotally mounted upon the post A and secured against vertical movement thereon by any suitable means passing through the block and the groove A in the post A-for instance, a split pin a. The trolley-pole socket O is pivoted in the upper portion of said block B by any suitable means-for instance, by a pivot-pin 0 passing through the block and extending beyond the opposite ends of the socket. The lower portion of this socket is provided with forked extensions constituting levers 0 said levers being provided with lateral extensions 0 at their lower ends, from which pins or lugs C extend inwardly at one end, and similar pins or lugs C extend outwardly at the opposite end. The levers O are provided with pivoting-apertures O for the reception of the pivotbolt C, and the upper end of the socket is adapted to receive the trolley-pole G which is secured in position by any usual means for instance, set-screws 0 Upon the pivot-bolt 0, between the post B and levers 0 there are located opposite tension-arms D, while beyond the outer face of the levers C a similar set of opposite tensionarms D are provided. The lower ends of these arms are connected with any suitable tension devices-for instance, a spring E which may be connected to the arms by means of an interposed link E and to the frame 13 by means of an adjusting-bolt E passing through the sockets B and adapted to be adjusted by means of a nut E bearing against the outer face of said sockets. Similar springs are connected to each of the arms, and each set of springs is connected to a cross-bar E ,which is removably attached to the adjusting-bolt E by means of a bolt 6. The springs E are connected to the inner set of armsD and are attached to the cross-bar E at one end of the stand-for instance, the left end, as shown in Figs. 1 and 2and the battery of tensionsprings connected to the opposite outer arms D are connected to the cross-bar E and adjusted by the bolt E at the right end of the machine. It will be observed that when the pole is in a vertical position, as shown in Fig. 1, the springs are relieved from all tension, save that of their adjusting-bolts, while as soon as the pole is depressed for engagement with the trolley-wirefor instance, toward the right of Fig. 1the pins or lugs 0 upon the opposite levers C will engage the opposite outer tension-arms D and bring the trolley pole under the tension of the springs at the right end of the stand. lVhen it is desired to depress the pole to more than the normal extent, the spring E will yield and permit such depression until the pole is in a substantially horizontal position. The tension of the springs will be regulated and adj usted by means of the nuts E so as to exercise the desired pressure upon the trolleypole. lVhen it is desired to reverse the trolley-pole either at the end of a trip or by reason of injury to the springs or tension-arms, it is simply necessary to swing the frame upon its pivotal support to bring the opposite battery of springs connected to the arms D into the position previously occupied by the other end of the stand. This reversal is not necessary in the ordinary use of the stand, as it will be seen that the socket can be depressed in either direction, and if depressed toward the left the arms D will engage the pins 0 and act in the manner just described in connection with the arms D. A trolley-stand is thus provided which guards against all delay incident to a breakage of the tension devices and which is capable of use without the necessity of reversing the stand when the direction of incline of the trolley-pole is changed. The use of the independent springs for governing the tension upon the pole obviates all the disadvantages occasioned by the breakage of the single spring used in a number of previous constructions.

It is obvious that numerous changes may be made in the details of construction without departing from the spirit of the invention, as defined by the appended claims.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s-- 1. In a trolley-stand, the combination with a pivoted pole-socket provided with a lever, a pivoted arm mounted to oscillate independently of said lever, a device carried by said lever to engage said arm when the lever is moved in one direction, and tension means for retaining said arm in one position; substantially as specified.

2. In a trolley-stand, the combination with a pivoted pole-socket provided with a lever, a pivoted arm mounted to oscillate independently of said lever, a device carried by said lever to engage said arm when the lever is moved in one direction, tension means for retaining said arm in one direction; and means for adjusting said tension; substantially as specified.

3. In a trolley-stand, the combination with a pivoted pole-socket provided with a lever, a pivoted arm mounted to oscillate independently of said lever, a device carried by said lever to engage said arm when the lever is moved in one direction, and a spring extending from said arm and an adjacent frame; substantially as specified.

4. In a trolley-stand, the combination with a pivoted pole-socket provided with a lever, projections from the opposite faces of said lever, pivoted arms upon opposite sides of said lever, and independent means for holding each of said arms under tension; substantially as specified.

5. In a trolley-stand, the combination with a pivoted pole-socket provided with a lever, projections from the opposite faces of said lever, pivoted arms upon opposite sides of said lever, a frame, and springs extending between said arms and the opposite ends of said frame to exert tension upon the arms in opposite directions; substantially as specified.

6. In a trolley-stand, the combination with a pole-socket provided with a pivoted forked lower end constituting levers, lateral extensions upon said levers, inwardly-extending projections upon one end of said extensions and outwardly-extending projections upon the opposite end, oppositely located arms lying within the levers, springs connecting said arms with a frame, oppositely-located arms upon the outside of said levers, and springs connecting said arms with the opposite end of said frame substantially as specifled.

7. In a trolley-stand, the combination with a pole-socket provided with a pivoted forked lower end constituting levers, lateral extensions upon said levers, inwardly-extending projections upon one end of said extensions and outwardly-extending projections upon the opposite end, oppositely-located arms lying within the levers, springs connecting said arms with a frame, oppositely-located arms upon the outside of said levers, springs con necting said arms with the opposite end of said frame, a cross-bar connected to the ends of each set of said springs, and adj usting-bolts through the opposite ends of said frame and engaging said cross-bars; substantially as specified.

S. In a trolley-stand, the combination with a securing-base provided with a verticallyextending post having an annular groove therein, of a bearing-block provided with a socket to fit said post and a lateral pivotingrecess above said socket, means to secure said block against vertical movement on the post, a pole-socket provided with a lever, a pivot* pin passing through said recess and polesocket, supporting-frames at opposite sides of said block, an arm mounted to oscillate independently of said lever, a device carried by said lever to engage said arm, and means carried by said frame for exerting tension upon said arm; substantially as specified.

9. In a trolley-stand, the combination with a vertically-extending post having an annular groove therein, of a bearing-block located upon said post, means to secure said block against vertical movement on the post, a frame extending from said block, a polesocket pivoted to said post, a lever depending from said socket and provided with a projection, a pivoted arm mounted to oscillate independently of said lever, and a spring connecting said arm with the frame; substantially as specified.

10. Inatrolley-stand, the combination with

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