US527100A

US527100A - Rail-bender

Info

Publication number: US527100A
Authority: US
Publication date: 1894-10-09
Anticipated expiration: 1911-10-09

Description

(No Model.) 2 sheetssheet 1. H. W. ARMSTRONG.

RAIL BENDBR. No. 527,100. Patented Oct. 9,1894.

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`(No Model.) 2 Sheets-Sheet 2.'4 H. W. ARMSTRONG. RAIL BENDER.

No. 527,100. .Patented Oct. 9,1894.

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UNITED STATES PATENT OFFICE.

HARRY W. ARMSTRONG, OF OAKMONT, PENNSYLVANIA.

RAIL-BENoEn.

SPECIFICATION forming part of Letters Patent No. 527,100, dated October 9, 1894.

Application tiled J' une 30, 1894. Serial No. 516,194. (No model.)

To all whom it may concern:

Be it known that I, HARRY W. ARMSTRONG, of Oakmont, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Rail-Benders, of which the following is afull, clear, and exact description, reference being had to the accompanying drawings, forming part ofy this specification, in whichn Figure 1 is a top plan view of my improved rail-bender applied to a rail. Fig. 2 is a side elevation of t-he same; and Figs. 3 and 4 are similar views of a modified form.

My invention relates to the devices employed for bending street-railway or other rails, and is designed to produce a bender which is more easily applied andy removed,

and does its work more eectually than former devices for this purpose.

In the drawings, 2 represents a casting, to the upper and lower faces of which are secured the correspondingly

curved plates

3 and 4, the ends of which are designed to extend respectively above and below the rail to be bent. Through the casting 2 extends an innerly screw-threaded aperture in which ts the screw-shaft 5, provided at its out-er end with anA operating head 6, having holes for the insertion of a lever, while to its inner end a block 7 is removably held by means of a pin 8. Each end of the upper plate terminates in a pair of vertical lugs' 9, between which is pivoted a bearing-block IO. Each block 10 is slotted for the passage of the pivot pin, and is provided at its lower end with a lug 1I arranged to enter a slot in the corresponding end of the lower plate. Both edges of the blocks lO are provided with projecting portions l2 and 12 arranged to press against the web of the rail so that by removing the pivot-pin and reversing the block, it will it another form of rail.

The operation is apparent. The bender being slipped over the rail, the blocks lO are swung down and being lifted vertically, the slots, passing up over the pins, are dropped with their lugs in the slots of the lower plates, thus securing the blocks in place. Pressure is then broughtas usual upon the intermediate portion of the rail by the screw-shaft 5.

In the modification of Figs. 3 and 4, the block l0 is removably held in position by a Iiat pin I3 passing through registering slots in the block and the upper and lower plates.

The blocks 10 and 7 may be removed and replaced with others as desired to t the particular section of rail operated upon, and the block 10 may be provided with a projection upon the opposite side as in the former case.

The advantages of the invention are apparent. Instead of bringing the strain upon the head of the rail and distorting its shape when pressure is brought thereon, the pressure comes upon the web or central portion of the rail. The device can be easily and quickly applied and removed and adjusted to tit different sections of rails, while its construction is simple and compact.

Many changes may be made in the form, construction and arrangement of the parts without departure from my invention;`since What I claim, and desire to secure by Letters Patent, is

1. A rail-bender having plates arranged to extend above and below the rail, bearingblocks held between the ends of the plates, and means for applying pressure'to the rail between the bearing-blocks; substantially as described.

2. A rail-bender comprising plates extending above and below the rail, bearing-blocks pivoted in the ends of the upper plate and arranged to be removably secured 'to the lower plate, and a screw-shaft for applying pressure to the rail; substantially as described.

3. A rail-bender comprising plates extending above and below the rail, bearing-blocks having slots through which extend pivot-pins upon the upper plates, the end-portions of the lower plates being slotted to receive the lower ends of the bearing blocks, and ascrew-shaft for applying pressure; substantially as described. Y

4. A rail-bender comprising a casting having a screw-threaded shaft passing therethrough, curved plates secured thereto and arranged to extend above and below the rail, and removable bearing-blocks held in their outer ends; substantially as described.`

In testimony whereof I have hereunto set my hand.

HARRY WARMSTRONG.

Witnesses:

W. B. CoRwIN, H. M. CORWIN.

IOO