US64896A - John morgan - Google Patents

Description

@uiten giants stwt @fitta IMPROVED BOLT' AND RIVET MACHINE.

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Bc it known that I, .IHN MORGAN, J1?, 0f Wheeling, county of Ohio, and State 'of West Virginia, have invented a new and useful Rivet Machine for manufacturing boiler and other rivets; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawings, making a. part of this specification.

Description. l A, frame. B, main shaft. C, side shaft. D and E, cams that work mandrel U by arm L. F and I,- cams that work header N by arm M. G, back bearing of arm L.- H andO, back Abearing of arm M. J and T, front bearing of arm L. K, front bearing of arm M. AL, arm from mandrel U to cams D and E. M, arm from header N to cams F and I. N, header. vP, plate which supports die X. S, hole "in` die X, where header N Venters and forms the head of the rivet. U, mandrel. V, back end of hole in die X, where mandrel U stops and forms a back for the mould. W, head, with hole D in, to receive blank. X, die where rivet is'made, and which is removable. Y, arm from head Wto cam 8. Z, key to hold head W on arm V. B. D, mitre- "wheel's, 2, arm from knife 10 to cam 11. 3 and 9, bearings on yoke for cam 8. v 4, keysto hold die X in .place 5and 12, bearings on yoke for cam 11. 6,-. changeable guide for the iron. 7, half hole in guide 6, for the iron. 8, cam that drives head W. 10, knife, movable. 11, cam that drives knife 10. 13, journal and glidecaps. 14, power-wheel. 15, ily-wheel. 16, shield. 1 1 1, slot in shield 16. K L represents the die X cut in two, showing the mould. MO, die X out of the plate P; 4 are the key-beds, and S the hole where the header N enters. G H, arm Y, with yoke, and also showing a side view of the head and hole C D, where the blank is carried. P S, arm 2 and knife 10, knife being fastened to the arm'by set-screws in slots z :u in lugs 4or cars of the knife. i l

. v i Explanation.,

The bar is put into the hole C D in head-W.A Knife 10 cuts the blank olf. Cain 8 `then drives head W over until the hole G D is exactly even with hole V in die X. Mandrel U is then pulled up by cam D untikit pushes the blank into hole'V, the mandrel U forming the back of the hole V while the blank is being headed, it (the mandrel) being held by a full point on cam D. -As 4soon as the blank is pushed into the hole V the header N is thrown into hole S by cam F until it reaches the shoulder in the mould or die X. -As soon as it is down it immediately returns, and at the same time the mandrel U is pulled clear through the die X, so as to deliver the rivet, by cam D, and then immediately returns to its first position, (clear back,) being thrown by ycam E. Head W is-now returned by cam .8, and the knife having already returned, it is ready 'to-receive the iron again. The head W removes from arm Y, being fastened by key Z. To make longer or shorter rivets, the head W must be thicker or thinner through,.thus cutting longer or shorter blanks, as may be required. The side of the head W must always work against the plate P, it (the head) receding or extending on side next the knife. The knife 10 is extended or withdrawn on arm 2 by means of set-screws in slots x a: in thc lugs or ears. The die X removes, and, in variation of sizes, extends or recedes on side n ext the header N. The header N removes, and the changes are longer orshort-er, from the back to the point, 'as may be required to Areach the shoulder in the hole S in the change of dies. The mandrel U always works the saine distance, drawing back far-enough for the longest blank, and always Working up to the edge of thel hole V in the {i1-st n'iotion,and through in the next. This mandrel mnstbe changed to suit the different thicknesses, which is done by unscrening from shoulder L. The shield 16 is to keep the blank from jumping out of the hole CDwhile being thrown from the knife to the mandrel. It is moved in or out by a screw in slot 11,1. Y i

In this machine the rivet cari be made perfectly round, and without a seam or burr, and the outside edge of the head can be made to extend even below where the head joins the shank, if so required. It will also make an equal, if not greater, number of rivets than 'any machine now vin use.

The rivets, as heretofore made, have a burr clear alongvthe sides of the shank and over thc head, and the shank oval, both of which faults require the hole. in the boiler plate to be larger than really necessary, thus weakening the. plate. And again, their heads are made convex on the under side, so that when they are put i into the hole the head bears on the edge of thehole 'rst, a weak spot. In rivets made by this machine these defects will all be done away with, and the head Vof the rivet made concave on its .under side, by which means the outer edge of the head will relieve the strain from, the .edge of the hole.

'Figure 1 is a perspective view of one half of the die Afor makinguthe under side of the head of the rivet concave, the rim of this die x', forming the head of the rivet, being convex, as shown. il

Having thus described my invention, what I claim as new herein, and desire to secure by Letters Pat-V ent, is-

1. The construction and arrangement of the solid die zo', follower U, header N, and cams D, E, F, and I upon the shaft B, substantially as herein shown and described, for the purpose spe'oied.

2. The carrier W, knife 10, and shield 16, combined, arranged, and operatinggin the manner and for the purpose specified.

3, The solid die x', for forming the under side ofthe head of the rivet concave, as herein set forth, for the purpose specified.

JNO. MORGAN, Jn. Witnesses: v

T. R. LAIRD,

J. W. WARDEB.

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