US275881A - Railway-rail curving and straightening machine - Google Patents

Description

UNITED STATES PATENT QFFICE.

LOUIS C. BRASTOW, OFASHLEY, AND GEORGE W. TWINING, OF EAST MAUCH CHUN K,

PENNSYLVANIA.

RAILWAY-RAIL CURVING AND STRAIGHTENING MACHINE.

SPECIFICATION forming part of Letters Patent No. 275,881, dated April 17, 1883, Application filed August 24, 1882. (No model.)

1 0 all whom it may concern Be it known that we, LoUIs UORNETTE BRAsToW and GEORGE W. TWINING, citizens of the United States, residing respectively at Ashley, Luzerne county, Penusylvania,'and at East Mauch Chunk, Carbon county, State aforesaid, haveinvented a new and useful Improvement in Railroad Rail Curving and Straightening Machines, of which the following is a specification.

The invention relates to improvements in railroad rail curving and straightening machines in which the ratchet-wrench is used in conjunction with a screw-spindle having a step and ferrule bearing combined with its lower end; and the objects of our improvements are, first, to make the curving and bending rail machines more practical and simple by increasing their power and leverage, and to save time and tiresome labor; second, to reducefriction and prevent undue wearing. We attain these objects by the mechanism illustrated in the accompanying drawings, in which Figure 1 is a side view of the machine. Fig. 2 is an end view of the machine. 'Fig. 3 is a sectional view of part of the spindle, step, and ferrule.

We accomplish our first object by applying.

ratchet-wrench D, Figs. 1,2, 4, and 5, to screwspindle f, Fig. 1. Prior to'our use of the ratchet-wrench for this purpose the common wrench was used. By using the ratchetwrench we gain power, and one hundred per Fig. 5 is acent. more work can be performed. With the common wrench the process is slower and more laborious, as it must be placed on and taken off from the top of screW-spindlefevery quarter-turn, while the ratchet-wrench need not be removed, but remains permanent.

We accomplish our second object by making ferrule B, Fig. 3, which is case-hardened, fit tightly around the screw-spindle f, near its lower end, Fig. 3. We next place step A, also case-hardened, around the lower end of the spindle-ferrule B, and step A, being case,- hardened and lubricated at point of contact, prevents wear and reduces friction. The old devices have a single ferrule (one piece) slipped over the lower end of screw-spindle fand revolving against its (screw-spindles) shoulder. Consequently the shoulder is soon worn off and destroyed. Our combination keeps the shoulders h and h, Fig. 3, from wearing off, because the friction is removed from against the" shoulders to the point of contact between ferrule B and step A, Fig. 3. All the old devices have only a ferrule (one piece) on the end of the screw spindle. \Ve have two pieces-a ferrule and a step. Therefore What we claim as our invention, and desire to secure by Letters Patent, is-

l. The combination, with the screw-spindle f, of the claw-bow a, step A, and ferrule B,

for the purpose specified.

2. The ratchet-wrench D, in combination with claw-bow a, screw-spindle f, ferrule B, and step A, all substantially as set'forth.

LOUIS CORNETTE BRASTOVV. GEORGE W. TVVINING.

Witnesses:

WILLIAM BROTHERHOOD, U. ORION STRoH.

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