US388686A

US388686A - Oblando h

Info

Publication number: US388686A
Authority: US
Publication date: 1888-08-28
Anticipated expiration: 1905-08-28

Description

(No Model.)

0. H. JADWIN.

CABLE GRIP FOR TRACTION RAILWAYS.

No. 388,686. Patented Aug. 28, 1888.

WITNESSES ATTORNEYS.

N. PEYCIS. Pholoulhqznphor. Washinglon. D.C

. UNITED STATES PATENT OFFICE.

ORLANDO H. JADWIN, OF NEW YORK, N. Y.

CABLE-GRIP FOR TRACTION RAILWAYS.

SPECIFICATION forming part of Letters Patent No. 388,686, dated August 28, 1888.

Applicationfiled January 24, 1888. Serial No. 261,772. (No model.)

To all whom it may concern:

Be it known that I, ORLANDO H. JADWIN, of New York, in the county of New York and State of New York, haveinvented a new and useful Improvement in Cable-Grips for Trac tion Railways,of which the following is a specification. I

My invention is in thenature of an improved cablegrip for traction railways; and it con- IO slsts in the special means for balancing the grip and insuring for it perfect flexibility in all directions, so as to reduce cramping and binding strains-and adapt the parts to a free and easy motion through the varying conditlons and positions to which it is subjected throughout its travel along the route. Figure lisa side elevation of the grip, showing its connection with the car and the cable. Fig. 2 is a plan view of the grip, and Figs. 3

'2 J and 4 are transverse sections showing different positions of the grip.

A, Fig. 1, isa point of connection with the car, to which, by a chain, a, or other flexible connection, the draft-bar B is attached. This 2 5 draft-bar is constructed in twin sections, as shown in Figs. 3 and 4, between which are bolted the downwardly-extending shanks G O, which at their lower ends are provided with and connected by a foot, I), which forms the lower jaw of the grip.

To one of the shanks C (or to the side of foot b) is fulcrumed the grip-lever E, which has a short elbow that is jointed to the upper movablejaw, D, of the grip. This leverE is con- 3 5 nected to a pull-rod, F, which at its front end is fastened to the hand-lever G, which is fulcrumed to the front platform of the car, and is provided with a locking-bolt engaging with a toothed arch-bar, c.

0 In order to balance the weight of the grip and sustain it in easy equilibrium, a U shaped frame is fulcrumed to hangers or pendent projections H H from the car, and the middle portion of this frame on one side of the fulcrum is provided with a weight or counterbalance, I, whilethe other side of the frame has its two ends connected to the draft-bar .of the grip, so that-the weight I tends to counterbalance the grip and relieve the cable of its weight, holding the grip in easy equilibrium to adapt itself to the various positions which its use involves.

The grip-bar B is not directly jointed to this In order to deflect the shank of the grip at the will of the operator, so as to apply the grip to or release it from the cable, the draftbar B is provided with an upwardly-extended arm, which rises above the platform of the car and terminates in a treadle-head, B, to which the foot of the operator is applied to rock the bar B on its hinges and thus deflect the grip. The pintle-rods d of the lower hinges are also made of suificient length to give afree sliding motion between the balance-frame and the grip to accommodate the draft-strain.

In defining my inventionwith greater clearness, I would state that I am aware that the gri p-fraine has been suspended upon links and that a counterbalance for the grip-frame has been provided which was arranged to play in a plane parallel with the cable, these features having been incorporated by me in previous patents. I do not know, however, that a lateral counter-balance has ever been arranged to play at right angles to the cable, and this, together with the double hinge or links working on axes parallel with the cable and the rocking draft-bar, constitute the main features of my present invention.

Having thus described my invention,what I claim as new is 1. The combination, with a cable-grip, of a laterally-projecting counter-balance arranged to work in a plane at right angles to the cable, substantially as and for the purpose described.

2. The combination, with a cable-grip, of a laterally-projecting counter-balance arranged to work in a plane at right angles to the cable, and links or double hinges connecting the counter-balance and grip and having their axes parallel with the cable, substantially as and for the purpose described.

3. The combination, with a cable-grip, of a laterally-projecting counter-balance arranged tached bar extended above the platform and to play at right angles to the cable and aslidprovided with a treadle-head, substantially as ing connection between the two arranged to and for the purpose described.

yield in the direction of the draft, substan- ORLANDO H. J ADWIN. 5 tially as and for the purpose described. Witnesses:

4. The combination, with a grip hung upon J. L. MOAULIFFE, an axis parallel with the cable, of a rigidly-at G. SEDGWIOK.