US16505A - Machine fob fokg-ing metal - Google Patents

Description

UNITE STATES TENT OFFICE.

MACHINE FOR FORGING- METAL.

Specicaton of Letters Patent No.

To all whom it may concern:

Be it known that I, ELBRIDGE VHEELER, of Feltonville, in the county of Middlesex and State of Massachusetts, have invented a new and Improved Machine for Forging Metals, of which the following is a full, clear, and exact description, reference being had to the annexed drawings, making part of this specication, in which- Figure 1 is a plan. Fig. 2 an elevation. Fig. 3 a section upon the line A, A, of Fig. l.

My invention has for its object to forge or plate iron or steel, and consists in the employment of revolving rolls for the purpose, when one of the rolls is allowed to approach or recede from the other, and the position of this roll is entirely under the control of the operator, so that a greater or less pressure may be put upon the metal as may be required.

My invention also consists in the use of a guard in combination with the rolls, op-

erating in a manner that will be hereafter more fully described. j

My invention also consists in the employment of the boxes in which the rolls run as a hammer or straightener', for the purpose of straightening the article as it becomes warped and bent under the operation of the rolls.

To enable others skilled in the art to understand my invention I will proceed to describe the manner in which I have carried it out.

In the accompanying drawings B is the frame work of the machine C the upper, and D the lower roll, these rolls are driven in a direction indicated by the arrows (Fig. 3) by power applied to the shaft E whence it is communicated through the pinion F to the gear G upon the shaft of the upper roll, and through the pinion H and intermediate gear I to the gear K upon the shaft of the lower roll; the rolls are so geared as to have an equal surface motion, the upper one running in stationary boxes, and the lower one in boxes that are permitted to slide freely up and down in the frame-work.

X are rollers upon the shaft of the lower roll, immediately beneath which are the eccentrics M that are secured to the shaft N. This shaft may be turned a portion of a circle, so as to force the lower roll up against the upper one; the handle O secured to 16,505, dated January 27, 1857.

the shaft being placed within reach of the workmans left hand for the purpose.

a, a, are inclined grooves in the surface of each roll, which are employed in drawing out and shaping a piece of metal when a bevel is to be put upon each edge.

c, 0, are grooves in the lower roll for the reception of the guide I), the operation of which will be presently described; the upper roll is provided with similar grooves di rectly opposite to those in the lower one, the upper roll contiguous to these grooves being formed to correspond with the shape of the article to be rolled or forged. The guard P is employed where it is desired to roll a scallop or other peculiar form upon one edge of a piece of iron and to preserve this edge of the iron sharp and smooth; it also serves the purpose of keeping the iron straight and preventing it from bending round, as one side is compressed more than the other. As the rolls approach each other the guard enters the groove c in the roll beneath, and thus it is itself steadied and guided, while it offers no impediment to the operation of the rolls. There may be a series of guards, one to each groove, or there may be but one employed, which in that case must be adjusted to the groove contiguous to that portion of the cylinder to be used. The guard may be confined in position in any suitable manner, in the machine represented in the accompanying drawings, it is secured at each end to the braces S which run from side to side of the machine.

At L, L2, the boxes which carry the rolls are allowed to project within the frame, and when the lower roll is raised the boxes come together and serve the purpose of a hammer and anvil, to be used as occasion may require to straighten and true the work.

Operation: The rolls are caused to revolve by any suitable motive power, in the direction indicated by the arrows in Fig. 3. The operator standing in front of the machine, enters the heated iron between the rolls, from the side on which projects the lever O, and depresses this lever with his left hand; and as the rolls bite the metal the latter is instantly rolled out toward him, he then raises the lever, enters the iron again and repeats the operation, putting each time the required degree of pressure upon the lever O, and turning the iron with his right hand as in forging, until it is sufficiently drawn down. If it is to be simply beveled upon both edges it is occasionally entered between the inclined grooves a. If any particularl bevel or scallop is to be given to the edge of the iron, the guard is placed in the required groove, the cylinder contiguous thereto being suitably formed to give proper shape to the edge, the guard as before stated keeping the iron straight, and preventing it from swelling out upon one side.

From time to time as the forging proceeds, the iron may be placed between the boxes L, L2 for the purpose of truing and straightening it. It is evident thatthe force with which the rolls are caused to come together, is at all times under the control of the Workman; so that .he may draw the metal down more or less rapidly as may be required.

The machine represented in the accompanying drawings is calculated particularly for the manufacture of horse shoes; in other branches of smiths Work, the grooves in the rolls Would require to be turned of a different form to suit the shape of the article to be manufactured.

MyA invention is applicable not only to forging, and drawing down iron or steel, but may also be employed to plate one metal With another as Where iron is to be platedv with steel in the manufacture of certain horse shoes, or of edge tools.

I do not claim the use of rolls revolving in fixed bearings, and having dies therein for the purpose of forging or forming specific articles; but

Vhat I do claim as my invention and desire to secure by Letters Patent isl. The Within described combination and arrangement of the rolls C and D one of them being capable of motion to and from the other, and entirely Within the control of the operator as set forth.

2. I do not claim an annular guard or ring secured to one roll and playing in a groove in the other, as this has been used before, but what I do claim is the stationary guard P, adapted to grooves in both the upper and under rolls, and operating in the manner and for the purpose substantially as herein set forth.

3. I claim prolonging the boxes in which the rolls run, for the purpose of straightening the Work as described.

ELBRIDGE VHEELER.

Witnesses:

Trios. R. RoAoH, SAM. COOPER.

Images