US877844A - Trolley. - Google Patents

Description

PATENTED JAN. 2 s, 1908;

A. W. HUHSMAN.

TEOLLEY.

APPLICATION FILED MAY 25, 1907.

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AUGUST WILLIAM HUHSMAN, OF STAUNTON, ILLINOIS.

TROLLEY.

Specification of Letters Patent.

Patented Jan. 28, 1908.

Application filed May 25. 1907- Serial No. 375,660.

To all whom it may concern:

Be it known that I, AUGUST WILLIAM HUHSMAN, a citizen of the United States, and a resident of Staunton, in the county of Macoupin and State of Illinois, have invented a new and Improved Trolley, of which the following is a full, clear, and exact description.

This invention is an improvement in trolleys designed to prevent the accidental separation of the trolley-wheel from the overhead conductor during the travel of the car, but admitting of the ready passage of the trolley past the conductor hangers.

To this end one embodiment of the invention consists of spring-pressed T-shaped members having opposed projections or cams passing over the top of the trolleywheel, and provided with depending outwardly-turned portions to which the trolley ro e or line is connected.

eferenpe is to be had to the accompanying drawings formin a part of this specification, in which sim' ar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a rear end view of a trolley constructed in accordance with my invention, the same being shown partly in central, vertical section; Fig. 2 is a side elevation of the same with the head of one of the T-shaped members broken away to more clearly show the construction, and Fig. 3 is a plan of the trolley.

Specifically described, the invention consists of the usual trolley pole.1 carrying a rearwardly-directed fork 2 between which an ordinary or other desired form of trolleywheel 3 is j ournaled on a pin or bolt 4. The outer ends of the fork 2 are rabbeted at the outside in a vertical direction to provide shoulders 5 as indicated in dotted outline in Fig. 3. for the edges of T-shaped members 6 carried at the opposite sides of the wheel 3 on the pivot bolt 4, the openings in said members which receive the pivot bolt being formedoblong in a vertical direction in order that they may be swung from each other in the direction of the pivot-bolts length. The members 6 are slightly offset at the top of the yoke 2, as indicated'at 7, which brings the heads 8 of said members close to the opposite sides of the wheel. 3, whereby the danger of the conductor passing therebe- These shoulders serve as abutments' tween is eliminated. The depending ends of the members 6 are outwardly-turned or curved from the sides of the wheel 3, as best shown in Fig. 1, and are connected with a trolley line or rope 9. For retaining the members 6 in operative position closely contacting with the sides of the yoke 2, are provided spiral springs 10 which surround the extended ends of the pivot-bolt 4, and are interposed between the heads thereof and said members, the ends of the springs being connected, respectively, to the bolt and to the T-shaped members. For retaining the members 6 in an upright position are fiat springs 11, which are attached to the yoke 2 and press upon the outer faces of said members above the pivot-bolt 4.

The heads 8 are laterally curved with their convex faces in opposed position, and formed with lugs or cams 12 projecting centrally from their upper edges, the cams being provided with contacting rollers 13 journaled on pins 14 threaded into the under face of the lugs, as clearly shown in Fig. 1.

During the travel of the trolley on the conductors, as the hangers 15 of the latter, as shown in Fig. 1, are encountered by the rollers, the rollers are forced apart, separating the heads 8 against the tension of the springs 10 and 11, the latter operating to return the rollers again into contact as the hanger is passed. The separation of the trolley from the conductor is accomplished by simply pulling on the trolley line 9, which, by reason of the formation of the depending p ortions'of the members 6, automatically operate to spread the rollers 13 and the heads 8 apart sufiiciently to let the conductor pass between them.

The invention as described, although being the preferred practical embodiment of the same, may nevertheless be extensively modified, as will be apparent to those skilled in the art, within the scope of the claims annexed.

Having thus described my invention I claim as new and desire to secure by Letters Patent:

1. The combination of a trolley wheel having an axis, members having oblong apertures intermediate their length through which said axis passes, the upper ends of said members being outwardly curved and having opposed cams arranged over the top of the wheel, and the lower ends thereof being outwardly curved, springs carried on said g; swam axis forcing said members inwardly, and a line directly connecting the lower curved ends of said members together.

2. The combination of a trolley-wheel having a pivot-bolt, spring -pressed members having outwardly-curved heads carried by the pivot-bolt, opposed cams projecting from said heads, rollers carried by said cams, normally in contact, and means for's'eparating the trolley-wheel from and replacing it on the conductor, automatically operating to spread said rollers apart, whereby the conductor may pass therebetween.

8. The combination of a trolley-wheel having a pivot-bolt, T-shaped members arranged at the opposite sides of the wheel carried on said bolt, springs interposed between the ends of said bolt and said members, androllers carried by said members, normally in contact above said wheel, said members having outwardly-curved ends depending from said bolt, for the purpose described.

4. The combination of a fork having the outer ends thereof rabbeted to provide shoulders, a trolley-wheel journaled on a pivotbolt passing through said fork, springpressed members arranged at the opposite sides of the wheel, in contact with said shoulders and carried by said pivot-bolt, means projecting from the upper ends of said members over the top of said wheel, and rollers normally in contact carried by said projecting means.

5. The combination of a fork having the outer ends thereof rabbeted to provide shoulders, a trolley wheel journaled on a pivot-bolt passing through said fork, T-shaped members carried on said bolt having the upper portions thereof off-set to bring them close to the opposite sides of the trolley wheel, springs carried by the bolt, forcing the members toward each other, and opposing rollers'carried by saidmembers overhanging the trolley wheel.

AUGUST WILLIAM HUHSMAN.

Witnesses:

R. RAMSEIER, C. KUEHNEN.

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