US55264A - Improvement in wood-bending machines - Google Patents

Description

UNITED STATES PATENT OFFICE.

OwEN EvANs, OE ALLIANCE, OHIO.

Specification forming part ot' Letters Patent No. 55,264, dated Juno 5, 1866.

To all whom it may concern:

Be it-known that I, O. EVANS, of Alliance, in the county of Stark and State ot' Ohio, have invented certain new and usefulImprovements in a WoodBending Machine; and I do hereby declare that the following is a full and complete description of the construction and operation ofthe same, reference being had to the accompanying drawings, making a part ot' this specification, in which- Figure l is a plan View of the machine. Fig. 2 is a side elevation. Fig. 3 isy an end view.

Like letters of reference refer to like parts in the several views.

A is a base-board or platform of the machine, from one end oi' which extends up a standard, A, that is notched or cut out at the top, so that the en d ot a form, B, comes against and rests upon it, as shown in Fig. 2. One side of the post extends up, as at a,Fig1, that one side of the form is placed against. The other end of the form B lits onto and rests upon a projection, D, secured to a standard, D', extending up from the side ofthe base A. The upper part of the standard D is inclined to one side, as shown in the figures, and from one side at the top projects a lug, g, that a screw, 7L, passes through, in the upper end of which is a han d-lever, Z, by which the screw is turned at the lower end upon the center of a head, E.,

In the inclined portion of the standard there is a groove or guide, e, in which a projection from the head E lits and moves. There is a metallic band, e', attached to the sides of the head and extending around the standard, which holds it in place as it is moved up and down. The lower part of the head at the sides is dovetailed out, as at c, and ts into the upper part of a formingblock, F, which is cut out to receive it, as represented in Fig. 2.

I is a metallic clasp ot' a rectangular form, that tits at the upper end into a groove cut out in the block F, and extends around the form B, holding the form and block together with the timber between, as will be described.

L is a hand-lever, curved or rounding at the lower end, as represented in Fig. 2, that rests and turns on the baseboard A. The lever is connected to a slotted guide, P, whereby it is held in place by pins on one side passing through slots c in the guide, with heads f on the outer end. The slots are curved to correspond with the movement ot' the lever, which as it is raised and lowered turns on the board A, changing its i'ulcrum at every point, and describes a section of a circle, whereby the same leverage is obtained at every point or position ofthe lever. To the lower end ofthe lever is pivoted an arm, p, that is formed into a lip, j, at the upper end. Apin, c', projecting from one side ot' the arm, passes through a slot in an arm,f, pivoted to the standard D. On the front part of the form B, and attached to it at m, is a plate, m', at the outer end of which is a catch, J.

a is a plate secured at one end to the block F, and extends back over the form B, at the outer end ot' which there is acam, R, that consists of a circular head, a', from which ahandlever, l, projects, that passes through a slot in a ring, a, around the head. The upper part of the ring is formed into a restv or support, d, and to the head, one side of the center, is secured a bent rod, g', thatis turned at right angles, which is placed on the end otl the plate n, and the rest d comes underneath the timber when it is put in the form, which, by raising the lever, tightens and holds the plate down on the timber.

The manner in which timber is bent in this .machine, constructed as described, is as follows: They timber J, after being stcamed, is first placed with the block F upon the form B, and the plate n laid down O11 top, theclasp I being put over the end of the form. The plate n is held in place along on the timber by the cam R, hung on the rear end, as before dedescribed. The forming-block F and form B,

with the timber J thus arranged, are then put in the machine. The rear end ofthe form B is placed on the standard A, and the front end rests on the piece D, the block F being slipped into place in relation to the head E. The screw h is then turned, which moves the'head down, causing the forming-block F to press the timber close against the form B, when a key, d', is inserted in the lower end of the clasp, as seen in Fig. 2, for holding it in that position when removed from the machine. The front end ot' the timber comes against the catch J on the end of the plate m, as represented, and this is raised for bending the timber up against the block F by depressing the handle of the lever L, when the catch J, resting on the lip with the timber, will be moved up into the position indicated by the dotted lines in Fig. 2, bending the timber close against the formingblock F. A' key, J, of a suitable size, is then inserted underneath the plate between it and the form B, which will retain it in that position when the pressure from the lever is removed. By means of a staple, h', one end being inserted in a hole in the form and the other end extending over the plate n, the plate will be held in place on the timber, when the cam R can be taken off. The timber is nowbent on. the form and forming-block and secured in that position, when the forms with the timber are taken from the machine.

The same operation is repeated in bending other pieces of timber.

The form B and forming-block E may be of any form or configuration for bending timber into the desired shape.

Wha-t I claim as my improvement, and desire to secure by Letters Patent, is-

1. The arrangement of the staple h', form B, and plate n, in combination with the head E, block F, clasp I, and key d', as and for the purpose substantially as set forth.

2. The construction of the lever L, guide P, and arm p, in combination with the catch J and head E, as and for the purpose substantially as described.

OWEN EVANS.

Witnesses W. H. BURRIDGE, A. W. MGGLELLAN.

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