US555674A - Liam l - Google Patents

Description

(No Model.)

' W. H. CARR.

TROLLEY HEAD.

' K Patented Mar. 3, 1896.

UNITED STATES 'PATENT OFFICE.

WARREN H. CARR, OF BATH, MAINE, ASSIGNOR OF FIVE-EIGHTHS TO WIL- LIAM L. WHITE, ALBERT I-I. SHAW, AND CHARLES R. DAWNELL, OF SAME PLACE.

TROLLEY-HEAD.

SPECIFICATION forming part of Letters Patent No. 555,674, dated March 3, 1896.

` Appiicationneaoaoteri,1895. seralNo. 565,711. 11@ model.)

To all whom it may concern: a central opening S, which receives the stem Be it known that LWARREN H. CARR, a citii T of the trolley-carrier. 50 zen of the United States, residing at Bath, in From this construction it will be seen that the county of Sagadahoc and State of Maine, the spool or ferrule which has the upper fiat have invented certain new and useful Importion is in a perfectly straight or vertical provements in Trolley-Heads; andIdo hereby line with reference to the trolley carrier or declare the following to be a full, clear, and frame and that the upper portion of the fer- 55 exact description of the invention, such as rule is iiatand thus aperfect bearing between will enable others skilled in the art to `which the carrier and ferrule is provided, and fur- Io it appertains to make and use the same. thermore the trolley-wheel being arranged in My invention relates to improvements in a vertical plane also bears reliably at all times trolley-heads; and the object of my invention upon the conductor. 6o is the provision of a head of simple and in- Formed integral with the spool or ferrule expensive construction which will insure an and at an angle or incline with reference 1 5 easy and smooth running of the trolley-wheel thereto is the socket-piece T', to which is conand also cause the wheel with its frame to turn nected the plate U, which prevents undue or easily around curves in the conductor and improper movement of the trolley-wheel, and 65 thus insure an easy running and thoroughly the fastening V of said plate passes into the practical device of this character. socket and forms a rib V'-, which receives the 2o To attain the desired objects the invention thread W on the reduced end of the trolley consists of a trolley-head embodying novel arm or rod W', and thus makes a secure fasfeatures of construction and combination of tening between the socket and said trolley 7o parts, substantially as disclosed herein. rod or arm. To the forward portion of the Figure 1 represents a perspective view of ferrule is connected the lower end of the my improved trolley-head. Fig. 2 represents spring-arm X, the upper end whereof en. averticallongitudinal sectionalview,and Fig. gages the loop or eye Y, attached to the front 3 represents a vertical transverse section. portion of the trolley-wheel carrier or frame. 75 In the accompanying drawings, the letter The purpose of this spring-arm is to prevent A designates the trolley-wheel provided with wabbling or improper movement of the trol- 3o the central opening B and the annular chanley-Wheel as it moves along over the connels or grooves C, and in said central opening ductor. fits the axle or shaft D, having the threaded From the foregoing description taken in 8o ends E to receive the adjusting and securing connection with the drawings it is evident that nuts F, and on the ends of said shaft fit the I provide a trolley-head in which the trolley caps Gr, having the curved rim H, which, in has a perfect vertical bearing and also by connection with the recesses or grooves of the reason of the ball-bearings between the wheel trolley-wheel, forma cone-bearingJ to receive and frame and the frame and ferrule all fric- 8 5 the balls K, thus forming for the trolley-wheel tion is avoided and a smooth and easy motion a perfect ball-bearing, and insuring a perfect of the conductor is assured. It will also be 4o running of the wheel or trolley. The ends of understood that the angle of the socket-piece the shaft which extend beyond the trolleyand the vertical arrangement of the ferrule wheel are mounted in the open bearings L of and trolley carrier with reference thereto 9o the trolley carrier or frame M, which has its makes a reliable bearing of the trolley-wheel lower portion made perfectly flat and provided on the conductor and the spring-arm prevents with an annular groove or channel N, in which wabbling of the trolley frame or carrier and ts the ball-bearing O, and said ball-bearings the plate connected to the socket-piece prealso rest in a groove P formed on the platvents the trolley from leaving the conductor. form Q of the ferrule R, which is formed with I claim- The combination of the rod having the threaded end, the head having the socket to receive said end, the iat ilexible plate secured to saidhead and having one of the seeurng-bolts engaging the threads in the end of the i'od, the trolley-carrier pivoted on said head, ball-bearings between the head and oai'- lier, the trolley mounted in the earl-ler, the bal1-bea1-ings for said trolley, and the sprin g having one end connected rigidly to the front 1o of the head and the other end loosely engag ing the front of the ti'olley-ea11ie1.

In testimony whereof I affix my signature in presence of two Witnesses.

TARREN II. CARR. Titnesses WM. D. MUSSENDEN, O. B. MUSSENDEN.

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