US260938A

US260938A - chiles

Info

Publication number: US260938A
Authority: US
Publication date: 1882-07-11
Anticipated expiration: 1899-07-11

Description

(No Model.) Y

J. B. GHILBS.

MAGHINB'FOB BBNDEING STIRRUPS. V No. 260,938. Patented July 11; 1882.

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UNITED STATES PATENT OFFICE.

JOHN B. GHILES, O`F KERNSTOWN, VIRGINIA.

MACHINE FOR BENDING STIRRUPS.

SPECIFICATION forming part of Letters Patent No. 260,938, dated July 11, 1882.

Application filed March 18, 1882. (No model.)

To all whom it may concer-n Be it known that I, JOHN B. CHILES, of Kernstown, Frederick county, State of Virginia, have invented a new and Improved Ma-` chine for BendingWooden Stirrups; and I do hereby declare thatthe following is a full, clear, and exact description of the same, reference being had to the accompanyin gdrawin gs, forming part of this specification, in which- Figure l is a front end elevation. Fig. 2 is a transverse section, and Fig. 3 a perspective view of a wooden stirrup.

Thisinvention has for its purpose the bending of stirrups from a suitably-prepared blank of wood; and it consists in the peculiar construction and arrangement of the parts, as hereinafter more fully set forth.

In the drawings, A represents a vertical standard forming the main support of the machine, which is itself held upon any suitable foundation.

Brepresents a transverse beam or plate properly secured to the standard A, which beam serves as a basis of support for the formerblock and the bending mechanism.

C represents the formerblock projecting from the face of beam B, as shown, which is formed in such manner that its outer surface corresponds exactly with the inner surface of a properly-shaped stirrup.

D represents a lever pivoted in the vertical standard A, and extending through the same from front to rear, the front end of which is provided with a horizontal portion, d, adapted, when the lever is properly actuated, to press in an upward direction and clamp the blank against the bottom of the former.

d represents a connecting-rod, by means of which the rear end of clamping-lever D is united to the foot-lever d2 near one end of the same, as shown.

d3 represents a rack-plate, by means of which thefoot-lever, when depressed to clamp a blank, may be held in any desired position.

E E represent bearings extending from the beam B at its ends, which bearings support the shaft e, having the crank e or otherV proper means for communicating motion.

e2 e2 represent pinions upon the shaft, which teeth bf which engage with the pinionsff, as

shown.

g g represent former-plate projections for the gear end, which are shaped in such manner as to coincide exactly with the outer surface of one side of the stirrup-former block O.

, H `represents a screw-clamp of the usual well-known or any other proper construction, the purpose of which will be hereinafter explained.

\ The operation' is substantially as follows: The wooden blank, having been previously shaped and steamed,is broughtto the machine, and is placed centrally upon the horizontal portion d of the lever D. The foot-lever d2 is then actuated to cause the portion d to clamp the blank against the bottom of the formerblock. When the blank is thus strongly secured in its proper place the shaft'e is actuated to cause, through the intermediate mechanism described, the former-plates g g to shape the blank to the sides of the former-block C. When the blank has been thus bent into proper form the screw-clamp H is applied thereto for the purpose of holding the upper ends of the same securely while the securing rod is passed through the center block and riveted. The completed stirrup may then be removed to make place for another blank.

The machine .possesses greatefciency in the performance of the work for which it is designed, and its construction is durable and simple.

I am aware that timber has heretofore been bent into any desired form by means of aformer made of exactly the shape which it is desired the timber should have when bent, around which former the timber is bent by means of gear-wheels and cam-gear, and I therefore lay no claim, broadly, to such construction and arran gement of parts for Y bending wood, my invention being intended` to cover the arrangement and construction of parts for bending wooden stirrups as' pointed out in the claims.`

Having thus described my invention, what G G, each provided with a. former-plate, g, I claim sl former-block G, clamping mechanism D d d2, ro

1. As an improved article of manufacture, I and operating mechanism F F ff, substanthe sector-gear G, adapted to be pivoted as tially as described.

5 set forth, and provided with a fornier-plateyg, JOHN B. GHILES.

on one of its edges of the congurution of one- VVituesses: 4 half of a stirrup, substantially as describede PHILIP W. BOYD,

2. The combinationof the segmental gears L. N. BARTON.