US112410A - Improvement in machines for heading bolts and spikes - Google Patents

Description

UNITED STATE-s PATENT OEETcE.

REINEoLD ROEKLEN, oF BROOKLYN, NEw YORK, AssieNoR To HIMsELE AND HENRY ToRsTRIoK, oE NEW YORK oITY.

IMPROVEMENT IN MACl-IINES FOR HEADING BOLTS AND SPIKES.

Specification forming part of Letters Patent No. ll 2,410, dated March 7, 187.1; antedated FebruaryY 28, 1871.

Va vibrating pressure, or to operate the header,

so as to press the metal from several directions onward to the center of the shank on the bottom of the head instead of operating the header in the usual manner with a single motion in 011e and the same direction toward the bottom of the head. p

Bymeans of its compound `motion the face 4of the header is caused to vibrate while operating upon thefumetal in upsetting, expelling thereby any air or gases which may be confined between said face and the metal, and preventing such gases to interfere with obtaining the desiredsolid bearing of` said face upon the metal. Y

Bythe vibrating pressure the particles of metal are permitted to have a gradual progressive movement to locate themselves accordingly, so as to ll up completely the spaces designed for them in the header-face or countersunk of the clamp, and without requiring the extravagant expenditure of power necessitated in consequence of the construction of heading-machines now in use.

In the accompanying drawing, which makes a part ot' this speciication, Figure I represents a vertical longitudinal section of a machine formaking screw spikes and bolts, in which myinvention is exhibited in the mechanism for upsetting the head ofthe bolt or spike. Fig. II is a detached top view of said mechanism, the parts in close connection therewith being shown bisected. Fig. III is a side view, and Fig. IV a top view, of a modification of my improvements.

A, Fig. I, represents the frame; B, the usual `guide for thematerial to be worked by the machine. C C represent the dies for clamping said "material while being headed; D, the spiral-grooved rollers for threading, and E the tongues for forwarding the material-frein the furnace into the machine. F is the drivin g-shatt of the same, and directly from it Vthe heading mechanism receives its motion by means of the crank or eccentric G, which is secured to or formed on said shaft.v H represents the header or punch, the working face of which is so shaped as to correspond to, and in combination with its compound motion form, the head of the desired shape on the spike or bolt. Its rear end is jointed to a link, I, havin g its fulcrum J in the frame A nearly in line with the central opening of the clamps C G, by means of the rod K, which is connected with the crank G on its one end, and on its Mother end with the common joint of the link I and the header H, in a manner to allow for said rod universal motion. The forward part or working end of the header is guided in the frame Ain the usual manner to keep it in its proper place.

It will be observed that when thecrank is on its upper stroke the header is withdrawn to allow the material to feed up to the header, and as the crank is drawn to the center of its stroke the header is forced up, so as to cause the upsetting of the metal, and while proceeding in that motion it is continually changing or varyin g the position of its working face toward the work or metal, whereby the liability of keeping or concealing air or gases between said face and the Vmetal when forming is obviated, 'such gases being effectually squeezed l out and removed. In this way a solid bearing and positive action of the header upon the metal are obtained, while at the same time, and by means of the progressive bearing and pressure of said header, the particles of metal in upsetting the head are gradually'inoved and located properly, said work being effectually protected from becoming damaged o r faulty by the violent separation of its part1 cles, which has been of frequent occurence hitherto. 'Ihe operation of my improved machine will be more rapid and effective in securing the desired object than that of any now in use.

What I cla-im, and desire to secure by Let ters Patent, is

J ointly, the application direct ofthe upset ting or heading` die to the extremity of one of press the metal, the latter to reduce and spread zn pair of toggle-jointed bars, and the eombithe staVed-up portions into the proper sha-pe, nation, with said device, of :t'erank and eonsubstantially as described.

necting-rod, or other equivalent mechanism, to Signed this 29th day of June, 187 0.

operate said toggle-jointed bars in the usual REINHOLD B'OEKLEN. manner, for the purpose of imparting to the Witnesses: die simultaneously u forward and zu rolling WM. B. JACKSON,

movement, Jdie former to stave up und oom- HENRY TORsTRIGK.

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