US252853A

US252853A - woodyatt

Info

Publication number: US252853A
Authority: US
Publication date: 1882-01-24
Anticipated expiration: 1899-01-24

Description

t NTTED STATES PATENT Orantes;7

AUGUSTUS R. WOODYAT'I, OF GUELPH, ONTARIO, CANADA, ASSIGNOR TO THE GUELPH CARRIAGE GOODS COMPANY, OF SAME PLACE.

MACHINE FOR BENDING AND SHAPING METAL ARTICLES.

SPECIFICATION forming part of Letters Patent No. 252,853, dated January 24, 1882.

Application tiled August 20, 1881. (No model.) i

To all whom lit may concern;

Beit known that I, AUGUs'rUs RlcHARD WOODYATT,of the city of Guelph, in the county of Wellington, in the Province ot' Ontario,

Canada, mechanic, have invented certain new and useful Improvements in Metal Shaping and Bending Machines; an`d I do hereby declare that the lfollowing is a full, clear, and eX- act description of the same.

Io This invention relates to a machine which is adapted to shape or bend metal plates, bars, Sac., to regular or irregular forms, and to instantly drop each plate when so shaped into a hardening or tempering tank; and it consists essentially of compressing-bars shaped and ar branged to correspond and operate i'n conjunction with a forming-block made the shape it is desired to form the metal to be'operated upon, and having a slot through the table support- 2o ing the block corresponding with its shape, so that when the article is made in the desired form it will immediately iall through the table into the tank of oil or other hardening liquid below for the purpose of hardening or temperingit.

While there are several modiiications in the form and general construction ot' my improved machine, the drawings illustrate a machine embodying the principle ot' my invention. The

3o forming-block, it will be understood, is capable of being made ot' various shapes, according to the design of the article produced.

In Figure l the machine is shown in perspective, with the compressing-bars expanded to permit the insertion of the metal plate to be operated upon, and showing adjustable plates attached to the block and compressing bars. Fig. 2 is a perspective view of the same machine with the com pressing-bars drawn against 4o the forming-block.

Y A is the main shaft et the machine,'prcfer ably supplied with a tight and loose pulley, B. The reciprocating movement of the cross-head C is derived from the rotary movement ot' the shaft A by a pitman-connection, as shown, the crosshead C being held in suitable guides formed by the mainframe D, which is arranged to support the other parts, as shown.

E is a lever pivoted to the frame D, and exvcross-head Q by links It.

tending back over the machine to the wedgc- 5o block frame F, where it is connected to the wedge-block G by the rod H. A spring, I, is arrangedvtosupport the end ofthe lever E, and on the bottom of the lever a sliding plate, J, is. suspended, a hand-lever, K, being provided to work the plate J and make it protrude, when desired, beyond the end ot' the lever E, overlapping the end of the cross-head C, as shown in Fig. 2. When in this position the upward movement of the cross-head C forces up that 6o end of the lever E, impart-ing a corresponding downward movement to the opposite end, to which the cross-head is attached. When the lever is let go of the spring L forces back the sliding plate J, and the spring I forces back the lever E into its initial position.

M is a forming-block, made in any shape in which it is desired to form the article to be pressed. This block is supported on the table N, below which is placedthe oil-tank O around 7o the block M and corresponding with its configuration. I cut a slot through the table of sufficient width to permit the article, when pressed against the block, to instantly drop through the table into the oil-tank below it.

P are compressing bars or arms pivoted on the table N, and connected to the T-shaped A spring, S, is ar! ranged as shown, or in any other suitable manner, so as to force back the cross-head Q, and 8o through it keep the compressing-bars P open in the position shown in Fig. l. A slot is made in the cross-head Q, to permit the wedge-block G to pass through behind it. When the sliding plate J is thrown forward over the crosshead C, and the lever E thus made to tip up and throw down the wedge-block G, the compressing-bars P are thrown against the block M, and as theplate or other article to be formed has been placed in position, these bars press it 9o against the block M, causing it to assume the shape ot' thesaid block.

On reference to the drawings itrwill be noticed that the wedge-block G has an indentation,m, on its vertical edge. This indent-ation permits the cross head Q to spring back slightly, and in this manner remove the pressure et' thecompressingbars upon the article the table into the oil-tank O below.

As I said in the former part ofthe specification, the mechanical details described and the general design of the machine can be altered considerably without affecting the principle of my invention. The shape of the forming-block can also be altered so as to shape the article being pressedinto any desired form; and I may further add that it is not necessary that the two forming-plates P should be used, as in some instances one plate will be sufficient t0 impart the desired form.

The adjustable plates (shown in Fig. l) at tached t0 the block and compressing-bars are applied to the machine when the shapes of the metal plates to be pressed vary. Their application obviates the necessity of changing the block and compressing-bars.

What I claim as my invention is'- 1.- In a machine for shaping metal, a forming-block made iu the form it is desired to produce the article and supported on a table having aslot through its top around and corresponding with the shape of the block, in combination with a compressing bar or bars arranged to compress against the forming-block the metal to be shaped, and atank containing tempering-fluid placed below the table to receive the plates falling through the slot the instant they have been compressed into the required shape.

2. In a machine for forming metal, having a forming-block supported on a table with a slotted passage-way cut through its top, so as to permit the article compressed against the block to fall through the table, the compressingbars P, pivoted on the table N and connected to the cross-head Q by the links R, in combination with the wedge-shaped block Gr, arranged to operate theeross-head, as described, and having an indentation on its edge at a point which will permit the cross-head to spring back when the article has been compressed against the forming-block, thereby releasing from the pressure ot' the compressing-bars the article, which will then fall through the slotted passage-way in the table into the oil-tank below.

3. In a machine for shaping metal, having a compressing arm or arms operated in connection with a forming-block, a wedge-shaped block arranged to operate the compressingbars and connected to the pivoted lever E by the rod H, in combination with the sliding plate J, connected to the lever and provided with a spring, L, and hand-lever K for moving the plate J, so as to come in contact with the moving cross-head C, by which the lcverE is tilted so as to impart a downward movement to the block G, substantially as and for the purpose specitied.

AUGUSTUS lt. WOODYATT.

Witnesses J. B. ARMSTRONG, lt. L. TORRANCE.