US399033A - Machine for making sheet-metal hinges - Google Patents

Description

(No Model.) 3 Sheets-8heet 1'.

W. HAAS.

MACHINE EOE MAKING SHEET METAL HINGES.

No. 399,038. Patented Mar. 5, 1889.,

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W. HAAS.

MACHINE FOR MAKING SHEET METAL HINGES.

Patented Mar. 5, 1889.

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W HAAS. MACHINE FOR MAKING SHEET METAL HINGES.

No. 399,033. Patented Mar. 5, 1889.

WITNESSES:

UNITED STATES PArENr Erica.

'ILLIAM HAAS, OF BROOKLYN, NEXV YORK.

MACHINE FORMAKING SHEET-METAL HINGES.

SPECIFICATION forming part of Letters Patent No 399,033, dated March 5, 1889.

Application filed August 23, 1888. Serial No- 288 .56l. (No model) To Mr? whom it may concern.-

Be it known that 1, WILLIAM Haas, of

Brooklyn,in the county of Kings and State of cutter for cutting off the pintle from said wire, a fixed eye for guiding said pintle into the pintle-sleeves of the leaves, and a reciprocating sleeve-closing jaw. The cutter and the sleeveclosing jaw are operated by eccentric cams on the driving-shaft, while the oscillating bending-jaws are operated by a crankmotion and the pintle-wire is fed forward by feed-r0llers operated by suitable pinions, as will be fully described hereinafter, an d fin ally be pointed out in the claims.

In the accompanying drawings,Figures l and 2 represent front elevations of my improved machine for making sheet-metal hinges, said figures showing the oscillating sleeve-bending jaws of the leaves respectively before and after the bending of the sleeves. Fig. 3 is a plan view of the machine; Fig. t, a side elevation; Fig. 5, a verticallongitudinal section on line w an, Figs. 6 and 7 are front views of the sleeve-bending jaws, drawn on a larger scale and showing the jaws before and after bending the sleeves of the leaves Fig. 7 is a detail side view of the bent-up sleeves of the leaves, showing the work accomplished by the bending-jaws; and Figs. 8 and 9 show, respectively, a vertical longitudinal section and a plan view of the leaf-fecdin g slide drawn on a larger scale.

Similar letters of reference indicatecorrespending parts.

Referring to the drawings, A represents the supporting-frame of my improved machine for making sheet-metal hinges, which frame is formed of a horizontal part, a, and upright standards a. a supported on said bracket (1.. The driving-shaft B supported in suitable bearings below the part a and meshes by bevel-gears of a" with a vertical shaft, 13, supported in bearings of the part a and upright standard a. The vertical shaft meshes again by bei'el-gcars a. a. with a horizontal shaft, B that supported in bearings at. the upper ends of the upright standards a. and o as shown in Figs. l and 5. A crank, (l, at the front end of the horizontal shaft 13 is connected by a pivot-link, cl, with a cross-piece, (P, that is guided on. the rails (Z of the front standard, (4 the crank (l imparting verticallyreciprocating motion to said cross-piece d.

To the cross-piece (Z are pivoted at each side of the connecting-link d two parallel links, d, which are pivoted at their lower ends to the apices of angular oscillating jaws D D, which are applied at their inner ends to a fixed pivot-pin, d, that is supported in a fixed sleeve, (2, of the front standard, (1. as shown clearly in Fig. The lowering of the cross-piece (1 produces the oscillating of the jaws D D from their uppermost or initial position, as shown in Figs. 1 and 6, to their lowermost closed position, as shown in Figs. 2 to 7. The jaws are guided by arc-shaped cheeks D, attached to the front standard, a The ends of the jaws D D are recessed according to the shape of the pintle-sleeves to be produced, the jaws bein arranged to interlock in the same manner as the pintle-sleeves of the hinge.

Immediately back of the jaws, when they are in their uppermost or initial positiomare arranged horizontal guide-brackets E, on which are guided in ways 6 e horizontallyreciprocating pushers E, that pass below the lower end of upright blank boxes or receptacles E which are secured to the brackets E and of a shape corresponding to the blanks of the leaves from which the hinge is to be made. The pushers E are united attheir rear ends by a transverse portion, the shank of which is attached to a slotted piece, E which is intermittently reciprocated by an eccentric cam, e, on the upright shaft B,

said cam engaging anti-friction rollers e at the slotted piece E as shown clearly in Figs. 4 and 5, so as to impart steady positive motion to the pushcrs E. By the forward mo* tion of the pushcrs .E a blank is pushed forward from the lower end of each feed-box E until arrested in its forward motion byastop, e, which is located immediately in front of each jaw l), as shown clearly in Figs. 8 and 9. The shape of the stop 6* corresponds to the shape of the leaves, so as to retain them reliably in proper position for the action of the jaws. The downward motion of the jaws D D bends thesleeve portions of the blanks of the leaves into U shape, as shown in Fig. 7, the jaws carrying the leaves along until they interlock with each other when the jaws arrive at the lower end of their motion, as shown in Fig. 7 The leaves are retained in this position by means of the checks D and a small projecting shoulder, e (shown in Fig. 5,) while the jaws l) are returned into raised position.

The pintle is supplied to the partly-closed sleeves of the leaves by means of circumferentially-grooved feed-rolls F F, which are arranged at the lower part of the supportingframe A, said rolls being operated by a pinion, f, on the driving-shaft B, back of the feedrolls F, said pinion meshing with a pinion, f, on the shaft of one of the feed-rolls, as shown clearly in Figs. 1 and The other feed-roll, F, is carried along by friction with the driving feed-roll. Symmetrical portions of the transmitting-pinion f-are cut off, so that the remaining toothed portions serve to impart intermittent rotary motion to the feed-rolls, as required for the upward feed of the pintlewire. The wire is passed along a guide-cheek, g, into a perforation, g, of the reciprocating cutter G, which cuts off the pintle from the wire by the backward motion of the cutter. Reciprocating motion is imparted to the cutter Gby an eccentric cam, g on the upright shaft B and an anti-friction roller, on the shank of the cutter, which roller engages a cam-groove of the cam g", as shown clearly in Figs. 4 and 5.- \Vhile the cutter G is in forward position the pintle-wire is fed upward again into the opening of the same, so that the pintle before cut off is lifted and guided through a fixed eye, 71, above the cutter into the partly-closed and interlocking sleeves of the leaves. When in this position, the pintle-sleeves are entirely closed around the pintle by a horizontall y-reciprocatin g sleeve-closing jaw, H, which is arranged immediately above the eye 72 and operated by an anti-friet-ion roller, h, on the shank of the sleevecloser H and eccentric cam 7t on the drivingshaft 13 in the same manner as the leaf-pushers and the cutter, as shown in Figs. 4; and 5. The backward motion of the jaw l-I closes the pintle-sleevcs around the pintle and completes thereby the hinge, which is then removed from the machine. The operations of the different working parts of the machine are so timed by their transmitting mechanisms that they take place in their regular order, so that-ahin'ge is finished at each revolution of thedriving shaft. Any suitably shaped hinge may be made by the machine, each shape of hinge re= quiring, however, feed-boxes and jaws of cor-' respondin shape, while diiferentsizes of hinges require different sizes of machines for making the same. 'lymy improved machine sheet-metal hinges for boxes of all kinds up to small door-hinges may be made in a quick, accurate, and reliable manner, so as to save considerable. time and labor in putting them together.

The 0 )eration of the machine is as follows:

The feed-boxes are filled with properlypunched sheet-metal blanks for the leaves an d are pushed forward by the pushers against the stops and. into the path of the bending jaws, which bend at the pintlc-slccves and bring them down so as to interlock with each other ready to receive the pintle, which is cut off by the pintle-cutter and fed upward by the wire-feed rollers into the partlyfclosed pintle sleeves, after which the latter are closed around the pintle by the reciprocating closing-j aw, upon which the finished hinge is dropped from the machine.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The combination of upright feed-boxes, horizontally reciprocating pushers at the lower end of said feed-boxes, oscillating jaws, feed-rollers for the pintleavire, a reciprocating pintle-cutter, an eye for guiding the pintle from the cutter into the partly-closed pintle-sleeves, and a reciprocating sleeve-closing jaw, substantially as set forth.

2. The combination of upright feed-boxes, reciprocating pushers guided in Ways below the feed-boxes, fixed stops in front of said feed-boxes, and oscillating bending-jaws moving at right angles to the pushers and jaws, substantially as set forth.

3. The combination, with oscillating jaws, of arc-shaped guide-cheeks for said jaws, wire-fceding rollers, a reciprocating pintlecutter, a fixed eye above the same for guiding the cut-off pintle, and a reciprocating sleeve-closing jaw, substantially as set forth.-

i. The combination of oscillatingbendingjaws, are-shaped guide-cheeks for said j aws, a. shoulder intermediately between said cheeks, intermittently-rotating wire-feed rollers, a reciprocating pintle-cutter having an opening for the wire, a guide eye above the cutter, and a reciprocating sleeve-closing jaw, substantially as set forth.

5. The combination of a rotary crank-shaft, a connecting pivotdink, a vertically-guided cross-piece, angular oscillating sleeve-bending jaws applied to a fixed pivot, and parallel pivot-links connecting said cross-piece and jaws, so as to impartoscillating motion to the jaw, substantially as set forth.

6. The combination of intermittently-r0- t nting grooved wire-feed rolls, a fixed cheek I my inventionl have signed myna-me in presfor guiding the wire, a, hol'izontaily-reciproence of two subscribing Witnesses.

CELtlIlg cutter havln g an opening for the ire, WILLIAM HAAS a fixed eye above the cutter, and a h0r1z0n 5 tally-reciprocating sleeve-closing jaw, sub- Witnesses:

PAUL GOEPEL, MARTIN PETRY.

stantially as set forth In testimony that I claim the foregoing as

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