US 312547 A
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Description (OCR text may contain errors)
- (No Model.
MAGHINE FOR BENDING THE ENDS OPBARS, No. 312,547. I Patented Feb; 17.1885.
If .r a C 1 -V WITNESSES:
UNITED STATES PATENT OFFICE.
ANDERS ANDERSEN, OF COPENHAGEN, DEN MARK, ASSIGNOR TO THE KJGBENHAVNS HESTESKOFABRIK, OF SAME PLACE.
MACHINE FOR BENDING THE ENDS OF BARS.
SPECIFICATION forming part of Letters Patent No. 312,547, dated February 17, 1885.
(No model) in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters-and figures of reference marked thereon, which form a part of this specification, and in which Figure l is a vertical sectional view of my improved machine for bending the lieel-calks for horseshoes, and Fig. 2 is a top view of the bed-plate and arm of the same, portions of the same having been removed.
Similar letters of reference indicate corresponding parts in both the figures.
My invention has relation to machines for bending the ends of metallic bars, especially adapted for bending the heel-calks of horseshoe-blanks; and it consists in the improved construction and combination of parts of the same, as hereinafter more fully described and claimed.
In the accompanying drawings, the letter A indicates the bed-plate of the machine, which has a longitudinal groove or recess, B, in which a plate, 0, fits and is removably secured, the said plate being preferably of steel, making it better able to resist the action of the hot-iron blanks placed upon it. At one end of the bedplate are two transversely-perforated ears or lugs, D D, through which pass screw-bolts E, the inner ends of which fit into perforations F in the inner bifurcated ends of a lever, G, the said ends being hinged upon the said bolts. The inner faces of the bifurcated ends of the lever are provided with insertible blocks H,
, in a groove, M, in which a spiral spring, N, is
placed, which bears with one end against the inner end of the groove and with the other end against the reduced end of the sliding block, the said groove and wider slot being covered by a plate, 0, under which the block slides. A plunger or presser-foot, P, slides in vertical ways Q, formed upon the inner sides of two uprights, R, and maybe forced downward and raised by means of toggle-arms S, or other suitable means-such as a screw, a lever, or other similar device-and the lower end of the plunger has a longitudinal groove, '1, in which slides a block, U, of steel, which may be adj usted by means of a wedge, V, passing transversely through the end of the plunger to the rear of the block, a screw, or other suitable means.
When a bar is to have its end bent, or, as especially in this machine, when the end calks are to be formed in a horseshoe-blank, the
blank is placed upon the bed'plate with its end bearing against the sliding block, when the plunger or presser-foot is forced down upon the blank, clamping it, the sliding block in the low er end of the plunger marking with its projecting end the place where the bend is to be formed, and the bifurcated lever is thereupon raised at its outer end, raising the end of the blank with it and bending it, and the said end of the blank will press against the sliding block or plunger, forcing it gradually into its slot until, when the end has been bent at a right angle, the plunger will be forced to bear with the inner end of its enlarged portion against the end of the wide slot, and will thus bear perfectly rigidly against the end of the blank, thus preventing the said end from expanding longitudinally by the bending process, and at the same time squaring the end of the calk, the gradually-yielding block preventing the bend of the calk from acting too suddenly upon the metal and causing it to crack.
Having thus described my invention, I claim and desire to secure by Letters Patent of the United States- 1. The combination of the bed-plate provided with the perforated lugs or ears at one end, the vertically-reciprocating plunger or presser-foot, the bifurcated lever hinged with its ends between the perforatedlugs upon the bed-plate, and having thelongitudinal recess, and the spring-cushioned plunger or sliding block sliding in the said recess, as and for the purpose shown and set forth.
2. The combination of the bed-plate having the longitudinal groove 0r recess and the removable steel plate in the said recess, and having the transversely-perforated lugs or ears at one end, the vertically-reciprocating plunger or presserfoot having the longitudinal recess in its lower end, the block sliding in the said recess, means for adjusting the said block, as described, the bifurcated lever hinged with its ends between the perforated lugs of the bed