US13434A - E drgietg-machiwe - Google Patents

Description

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DANIEL NOYES, OF ABINGTON, MASSACHUSETTS.

Specification of Letters Patent No.

To all whom t may concern Be it known that yI, DANIEL Novus, of Abington, in the count-y of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Machinery for Forging or Hammering Iron and other Metals; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l, is a front view of a forging machine constructed according to my invention. Fig. 2, is a transverse vertical sect-ion of the same. Fig. 3, is a front view of the anvil detached.

Similar letters of reference indicate corresponding part-s in the several figures.

This invention consists in a novel simple and eifective'method of applying the hammers of forging machines; also in an anvil having a face which forms the interior of an angle to be employed in connection with two hammers striking at an angle to each other; and further in the arrangementof a movable carriage or rest to remove the piece of metal away from one side of the angular face and against the other required by the alternate strokes of the hammers.

To enable others skilled in the art to make and use my invention I will proceed to describe its construction and operation.

A, is a strong frame of cast iron support-- ing the anvil B, whose face forms the interior of a right angle the part a, lying in a horizontal and the part b, standing in a vertical direction.

C, C, are the hammer shafts one of which is arranged vertically and the other horizontally in such manner that their aXes if continued far enough would intersect each other. The horizontal shaft is arranged in such a direction that the plane of the upright face a, of the anvil is perpendicular to it. The vertical shaft C, receives rotary motion by a pair of bevel wheels (Z, d, from a horizontal driving shaft D, and the horizontal shaft C, receives motion at the same speed from the said shaft D, through a train of spur gearing e, f, g. The shafts C, C', have attached to their contiguous ends disks E, E, to which the hammers F, F, are respectively attached, the hammer F, striking against the horizontal face a, of the anvil and the hammer F, against the vertical face I). The helves of the hammers are 13,434, dated August 14, 1855.

pivoted at their extremities each by a pivot L, to its respective disk but the movement on this pivot is limited by two stops y', 7c, see 2, which are secured to the disk one m front of and the other behind the hammer, said movement being only sutlicient to allow the hammer vto be drawn lengthwise from the anvil by the continued revolution of t-he disk after the blow is struck. In or-v der thus to draw the hammer off the anvil the position it occupies must be such that if a line along the face were continued to meet a line drawn from the aXes of the hammer shafts through the pivot h, the two lines would form nearly a right angle, as shown in Fig. 2, in blue color where the top hammer is shown as just having struck the blow and commencing to be drawn olf t-he iron on the anvil and the relative positions of the hammer shafts and the anvil is such as to admit of this arrangement of the hammers. The movement of the hammer on the pivot h also prevents the force of its recoil being thrown on its disk and shaft. A spring z', is applied to the hammer near its pivot as shown dotted in Fig. 2, to prevent its swinging too loosely, but during its revolution, its centrifugal force will throw it into contact with the stop j, in front of it. The attachment of the hammer as described not only prevents any recoil being thrown on the machinery and allows it to be drawn off the anvil after every blow to enable its revolution to continue to repeat the blow, but produces as it were a drawing blow such as in drawing out light work is very desirable, and is given by blacksmiths in forging by hand. Both the hammers are arranged and operated in the same way and they are so arranged relatively to each other that they strike alternately at regular intervals. The blows are given with great force, as the hammer during its revolution acquires considerable centrifugal force.

In order to give a fair blow it is necessary that when the top hammer F, strikes, the piece of metal being forged should be in contact with the bottom face a, but removed from the side face Z), of the anvil and when the side hammer F, strikes it should be in contact with the side face b, but removed from the bottom face a, of the anvil. The

carriage or rest employed to carry the piece of metal and give it this movement, consist of a rotary lever G, working on a fixed fulcrum Z, in front of the machine and connected by a connecting rod H, with a crank on a shaft I, which receives motion at the same speed as the hammer shafts C, C, by bevel gearing Z cl, from the sha-ft C. This lever has a hole or recess n, through which the bar or piece n, to be forged is inserted and in which it rests, and the position of the hole or recess is such that when the leverV is raised by the upstroke of the crank, the piece n', is raised from the bottom face a, and thrown against the side face of the anvil, where it is shown in black outline, tinted red in Fig. l, but when the lever is lowered the piece is taken away from the side face Z), and thrown against the bottom face a, where it is shown. in red outline in F ig. l. A proper arrangement of the crank causes the movement to be effected with proper relation to the strokes of the hammers. Instead-otl the disks E, E, cranksv may be used to attach the hammers.

Wvhat I claim as my invention and desire to secure by Letters Patent, is-

l. Attaching the hammer or hammers of a forging machine each by a pivot to a revolving disk or crank so as to revolve therewith, and controlling the position thereof by stops attached to the face of the disk or crank in the manner substantially herein specified whereby after the hammer has been caused to strike on the anvil by .the revolution of the disk or crank itwill be the continued revolution thereof drawn lengthwise off the anvil to enable its revolution to continue for another blow substantially as herein described.

2. The employment of an anvil with a face forming the interior Vof a right angle in combination with two hammers operating at right angles to each other to strike against the said faces,substantially as herein described.

k3. The arrangement of the movable carriage or rest relatively to the two faced anvil and the hammers F, F', substantially in the manner herein described.

DANIEL NOYES.

Witnesses: i

STEPHEN B. CRAM, DANIEL L. NoYEs.

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