US966A - Charles r - Google Patents

Description

v C. H. MACEY.

Butt Hinge.

. Patented Oct. 5, 1838.

1' mi TED STATES PATENT OFFICE.

CHARLES R. MACY, or HYDE PARK, NEW YORK.

MACHINE FOR'MANUFAGTURING BUTT AND ornnaxmns or HING s.

Specification of Letters Patent No. 966, dated October 5, 1838. i

kind, or sheet brass, or other metal cut into strips of a width corresponding with that of the hinges to be manufactured; and with a screw, or other cutting press, of the ordinary construction, and furnished with suitable dies, I cut the said strips into pieces each of which is to form one half of a hinge, the dies bein so constructed that the portion of each hal which when bent is to form the knuckles ofthe joint, shall be cut from its j of steel, by which the parts of the hinge are corresponding half, so that there shall not be any loss of stufl, or any fitting required. So far the process does not present anything to which I lay claim as invention; and the same remark will apply to the drilling and countersinking of the requisite holes, as well as to certain other well known things in the finishing of the hinge; my improvement consisting in the peculiar construction of the machine by which the joint is formed, and by means of which the knuckles of each half of the hinge are simultaneously formed, and interlocked with each other.

In the accompanying drawing Figure ,1, represents the machine in perspective, and the other figures such parts thereof in detail as were deemed necessary to clearness of description. A A, A, is the frame work of the machine, which is best made of iron. B, B, is the main shaft, which carries three cams, by means of which the respective slides, and other operating parts of the machine are actuated. The main shaft has its berings in the plumber blocker 0, c, and is turned by means of a band and pulley L, or in any other convenient way. Upon this shaft there are three cams, C, D, and E, so formed as to give the required motion to the rods and levers upon which they operate. The upper cross bar of the frame A, Figs. 1 and 2 sustains the pressing pistons and their seats by means of which the knuckles of the hinge are formed together with the apparatus for feeding the respective halves of the hinge, and discharging the same after it has been formed. I J, J ,isthe seator bed of the'form- 1ng mold, in whichthe pressing and bending of the knuckles is eifected; this seat is extended upwardforming two arms j, j, the planes of which stand at air-angle of forty five degrees with each other, or nearly so,

these planes would meet together at a point below the letter I; but instead of an angular. line at what would be their point of meeting, a curve is, is Iformed, as will be seen by inspecting the drawing Fig.2, which gives a side view of the seat, divested of every thing by which it might be obscured; in the curve is, the joints of the hinge are to be bent. The rectan ular piece of steel, I which constitutes the upper portion of the forming mold s is sustained in its place by the straps f, f, Fig. 1, omitted in Fig. 2. angular piece and the seat J J, there is a space equal to the thickness of the hinge.

P, P, are pistons, consisting of flat plates to be forced into the forming mold; these are attached to slides Z, Z, heldin place and regulated by nuts and screws Z), 6. These Between this slides and pistons are worked bythe elbow levers O 0, Figs. 1 and 2 these levers having their fulcra at m m and work in slots n n, in the seat J, 7' being connected to the slides Z, Z, by the shackle bar' a, shown by dotted lines in Fig. 2.

The cam C, on the shaft B, B, is that which works the pressing pistons; this cam with its appendages, is shown separately at Fig. 3. K, K, are two arms which work the levers O, O. I

The pin '0' bears upon the peripheryof the cam C; h, onthis and the other cams, being back straps to embrace the pin, and return the levers, in a manner well known in machinery; o, 0, are guide levers attachedto the shackle bar 19, to keep it in its due direction. Such a form and position must be given to the cam O, as well as to the othercams, as will work the slides on which they are to opcrate, at the time and in the manner intended; a thing which every competent machinistknows how to regulate.

Two slide arms T, and U, placed horizontally stand at right angles with the upper cross bar A, A, of the frame, opposite to j the forming mold. The arm T, contains a slide S, which carries a steel forming pin- S Fig. 2 into the forming mold, just before the pressing pistons begin to act. A cross section of this pin is. shown at Fig.

5. When in the forming mold, the bottom part of it, 9, rests upon the bottom of this mold, its rounded part occupying the center of the circle, itsoflice being to aid in giving the proper curvature to the knuckles; it is withdrawn before this bent part comes into contact with the bottom, 9, of the form- 7 ing pin. The slide S, is operated by means H, is a receiving box, which is divided into three compartments by twopartitions Q, Into the side compartments the two halves of the hinge are to be dropped; the bottom of this receiverslopes downward from each side so as'to meet at a right angle in the center; its two ends have openings seen at t, t, in one end, which openings coincidewith those between the pieces, I, and J, of the forming mold, into which the pieces are to be fed from the receiving box.

The slide V, carries what is called the conducting piston Rfwhich is in a form something like the letter V, consisting of two pieces, or plates of steel, standing at right angles to each other, so as to pass into the openings 25, t, in the receiving box H. The slide V, andpiston R, are worked by the cam D, and the lever F, in the same way with the slide S, already described.

The knuckles of the hinge may be formed, and-interlocked, and the hinge may then be discharged from the forming mold, the

joint pin being subsequently inserted. I

sometimes, however, employ an apparatus for inserting the joint pin, as the forming pin is withdrawn. When this is to be done the joint pin is to be dropped into the space under the letter Q, between the partitions of the receiving boX, and a driver, or piston r, is adapted to carry it forward by the withdrawal of the forming pin.

M, Fig. 4, is a rod or bridle attached by one end to the lever G, on the under side of the arm T; this rod passes through an opening in the piece J, J, as shown in the drawing, (Fig.4) and has its other end attached to a slide N, on the under side of U; to this slide is aflixeduthe piston, or driver which passes through the chamber Q, introducing the joint pin into the center of the mold, by the same motion that serves to withdraw the forming pin. The piston R, is in this case divided into two parts, thus, by removing the angle formedby the two plates, thus allowing a space for contom of the receiver; a joint wire, if thought proper, being placed in the chamber Q; the angular piston IR, drives the-two parts into the forming mold, in which the forming pin is situated; the cam C, then brings the pressing pistons P, P, down to the proper position, where they rest while the cam. E, retracts the forming pin, and may at the same time draw in. thejoint pin into'the partly formed jointtthe cam C, then finishes the pressing and completes the joint; the pressing pistons then rise and the cam D, causes the piston R, to advance against the finished hinge, pushing it out ofthe forming mold on the side opposite to that on which it entered. This piston'is then withdrawn by the cam D, and the cam E, returns the forming pin into the mold, and the operation is then to be recommended.

lVhat I claim as'my invention, and desire to secure by Letters Patent is 1. The employment of two pressing pis tons, operating simultaneously upon the two halves of a hinge, so as to interlock them,

and form the joint complete, in a machine constructed substantially in the manner above set forth. a

2. I also claim in combination with the said pressing apparatus, that for operating the steel forming pin, and for feeding the pieces to, and delivering the hinge from the formingmold in the way set forth.

, CHARLES RFMACY. lVitnesses:

JA MES, WILLIAMS, JOHN W. ALBE 'rsoN.

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