US1085213A - Trolley-harp. - Google Patents

Description

O. D. LARRABEE.

TROLLEY HARP.

APPLICATION FILED JAN.11,1911.

1,085,21 3. Patented Jan. 27, 1914.

UNITED STATES PATENT OFFICE.

CLINTON D. LARRABEE, OF SYRACUSE, NEW YORK, ASSIGNOR OF ONE-HALF TO SILAS HUIBBELL, OF SYRACUSE, NEW YORK.

TROLLEY-HARP.

To all whom, it may concern Be it known that I, CLINTON D. LARRA- BEE, of Syracuse, in the county of Onondaga and State of New York, have invented a new and useful Trolley-Harp, of which the following is a specification.

This invent-ion relates to trolley harps and has for its object a particularly simple and efficient means whereby the harp is prevented from catching into the overhead wiring; and it consists in the combinations and constructions hereinafter set forth and claimed.

In describing this invention reference is had to the accompanying drawing in which like characters designate corresponding parts in all the views.

Figures 1 and 2 are, respectively, side and front elevations of my trolley harp.

I have here shown my invention as embodied in that type of trolley harp disclosed in my pending application, Sr. No. 533,996, filed December 20, 1909, but obviously it may be embodied in any other form of t1-0l ley harp.

My trolley harp comprises, generally, a body 1 including a platform 2 and a shank 3 arranged at an inclined angle to the platform, and forks at mounted on the platform and carrying the trolley wheel 5. The platform 2 is formed with forwardly extending converging webs 6 on opposite sides thereof, and the shank 3 is formed with laterally extending lengthwise webs 7 located on opposite sides of and converging toward the lower end of the shank, the webs 7 meeting the front ends of the webs 6 and the side edges of such webs 6 and 7 being continuous. Usually the upper portions of the webs 7 extend upwardly from the major parts thereof, and meet the front ends of the webs 6 at an angle approaching a right angle. The body is also formed with a central lengthwise vertically extending web 8 on the under side thereof, the web 8 having its lower edge 9 inclining from the lower end of the shank 3 toward the rear end of the platform 2. The body 1 is also formed with downwardly converging webs 10 located on Specification of Letters Patent.

Application filed January 11, 1911.

Patented Jan. 27, 1914. Serial No. 602,091.

opposite sides of the webs 8 and below the platform, the webs 10 meeting the rear ends of the webs 6 of the platform at a right angle and also meeting the web 8. The trolley harp is also provided with a guard in the form of a fin 11 extending lengthwise of the shank 3 and rising therefrom and terminating in front of the trolley wheel 5.

The forks or arms 4 are carried by a base 12 swiveled at 13 to the body and bearing on the upper face of the platform 2, the swivel pin 13 thereof extending through the platform and into a barrel like portion 14 of the web 8. The lower edge of which is continuous of the edge 9 of the main part of the web 8. Owing to the arrangement of the inclined edges of the webs, the trolley harp, when the trolley wheel leaves the wire, cannot be caught in frogs, hangers for the trolley wire, cross wires or other over-head work, as when the trolley harp enters or engages a frog, hanger or other overhead work, owing to the arrangement of the edges of the webs thereof, the harp is cammed downwardly during the forward movement of the car. Furthermore owing to such webs, a minimum surface is engaged by the trolley wire, consequently the wire engages the harp with a minimum friction, so that the trolley wire does not engage at one point or points long enough to burn notches or grooves therein as in other forms of trolley harps.

I have ascertained by actual use that a trolley harp provided with the webs arranged as described will free itself under all the conditions present in modern wire systems; and therefore my trolley harp is economical in use as it saves the expense of repairing the overhead work which heretofore has been torn out by the trolley harps catching therein.

lVhat I claim is:

1. A trolley harp comprising a body having a platform for supporting the trolley wheel, and a shank extending forwardly and downwardly at an inclined angle relatively to the front end of the platform, the body also having horizontal, forwardly converging, laterally extending webs at the front end of the platform, late-rally extending webs on opposite sides of the shank converg ing toward the lower end of the shank and meeting the first-mentioned webs, the body having a central vertical web disposed on the under side thereof converging from the rear end of the platform toward the lower end of the shank, the body being formed with additional vertically laterally extending webs depending from the under side of the platform and converging toward and meeting said centrally disposed web, substantially as and for the purpose specified.

2. A trolley harp comprising a body having a platform, and a base mounted on the platform and connected thereto by a vertical pivot pin extending through the platform from the lower side thereof, the base carrying arms for supporting the trolley wheel, the body also including a shank extending forwardly and downwardly at an inclined angle relatively to the front. end of the platform, the body having horizontal, forwardly converging, laterally extending webs at the front end of the platform, laterally extending webs on opposite sides of the shank converging toward the lower end of the shank and meeting at their upper ends the first mentioned webs, the body also having a central vertical web disposed on the under side thereof and extending from the rear end of the platform toward the lower end of the shank, the latter web having a barrel portion for surrounding the projecting portion of said pivot pin, the body also having additional vertically laterally extending webs depending from the under side of the platform and converging toward and meet-ing the barrel portion of the centrally disposed web, substantially as and for the purpose specified.

3. A trolley harp comprising a body having a platform, and a shank arranged at an inclined angle to the platform, the platform having forwardly extending converging webs on opposite sides thereof, and the shank having laterally extending lengthwise webs located on opposite sides of, and converging toward the lower end of, the shank, the upper portions of the last-mentioned webs extending upwardly and meeting the front ends of the webs of the platform at an angle approaching a right angle, the edges of the webs of the platform and the shank being continuous, and means on the platform for supporting a trolley wheel, substantially as and for the purpose specified.

4. A trolley harp comprising a body having a platform, and a shank arranged at an inclined angle to the platform, the platform having forwardly extending converging webs on opposite sides thereof, and the shank having laterally extending lengthwise webs located on opposite sides of, and converging toward the lower end of, the shank, and the upper portions of the last-mentioned web extending upwardly and meeting the front ends of the webs of the platform at an angle approaching a rightangle, the edges of the webs of the platform and the shank being continuous, and the body being also provided with downwardly converging webs located on opposite sides thereof beneath the platform and meeting the rear ends of the webs of the platform, and means on the platform for supporting a trolley wheel, substantially as and for the purpose described.

5. A. trolley harp comprising a body having a platform, and a shank arranged at an inclined angle to the platform, the platform having forwardly extending converging webs on opposite sides thereof, and the shank having lengthwise laterally extending webs located on opposite sides of, and converging toward the lower end of, the shank, the upper portions of the webs of the shank extending upwardly and meeting the front ends of the webs of the platform at an angle approaching a right angle, the edges of the webs of the platform and the shank being continuous, and the body being formed with a central, lengthwise, vertically extending web located beneath the platform and the shank and having its lower edge inclined upwardly and rearwardly from the lower end of the shank toward the rear end of the platform, and the body being also formed with downwardly converging webs located beneath the platform on opposite sides of the vertical central web and meeting the same and also meeting the rear ends of the webs of the platform, and means on the platform for supporting a trolley wheel, substantially as and for the purpose described.

6. A trolley harp comprising a body having a platform, and a shank arranged at an inclined angle to the platform, the platform having forwardly extending converging webs on opposite sides thereof, and the shank having laterally extending lengthwise webs located on opposite sides of, and converging toward the lower end of, the shank, the upper portions thereof extending upwardly and meeting the front ends of the webs of the platform at an angle approaching a right angle, the edges of the webs of the platform and the shank being continuous, and the body being formed with a central lengthwise vertically extending web located beneath the platform and having its lower edge inclining upwardly and rearwardly from the lower end of the shank toward the rear end of the platform, the body also being formed with downwardly converging webs located beneath the platform on opposite sides of the central vertical web and meeting the same and also meeting the rear ends of the webs of the platform, and a guard rising from the shank and terminattesting Witnesses, at Syracuse, in the county ing in front of the Wheel, and means on the of Onondaga, in the State of New York, platform for supporting a trolley Wheel, this 29th day of December, 1910.

substantially as and for the purpose set CLINTON D. LARRABEE. forth. Witnesses In testimony whereof, I have hereunto S. DAVIS, signed my name in the presence of two at- J. B. SMITH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.

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