US5293A - Machinery foil malflifactubing hingjes - Google Patents

Description

UNITED sTATEs PATENT oEErcE.

G. H. HoRToN AND L. ARMSTRONG,oE'HARTEoRi); ooNNEoTIcUT.

`1v1ACHINEEYFOR'ivLANUFAoTtrarne HINGES. i

Specification of Letters Patent No; 5,293, dated September 11i, 1847.

To aIZZ whom, f may camera .f

Be it known that we, GEORGE H. HoRToN and LEANDER ARMSTRONG, of Hartford, in

the county of Hartford and State of Connecticut, have invented anew and useful machine for making butts or hinges of wrought-iron, sheet-brass, or other metal capable of being bent into the proper shape or form; and we do hereby declare that the same is fully described and represented lin the following specification and'accompanying drawings, letters, figures, and references thereof.

Of said drawings Figure 1 denotes a top View of said machine-Fig. 2 is a side elevation of it. Fig. 3 is an elevation of `the end opposite to that at which the power to drive the machine is applied. Fig. 4 isa central longitudinal and vertical section of it. Fig. 5I is a vertical and transverse section taken through the dies, to be hereinafter described. Such other figures as may be necessary to a full description and representation' of the operative parts will be duly specified.

The metal to be converted into hinges is Y first stamped or cut out, in the shapes denoted in Figs. 6 and 7-that is to say with one or more tongues a, a, a, and corresponding spaces b, b, ZJ, the portions c, c, const-ituting the leaves of the butt, while from the said parts a, a, the joint of the hinge Ais made, their parts being brought together (in such manner that they enter, and fit or fill the spaces b, b, 1),) and bent around a piece of Wire or pin which serves to connect them Y together, and complete the joint of the hinge.

A in the figures denotes the frame werk of our machine. It may be made of the shape exhibited in the drawings or in any other proper manner. Y

B is the main driving shaft carrying a fly wheel C. It has a cogged pinion D fixed ori' it, which engages with two toothed gears `F, F, the lower one F of which is placed on the end of the main cam shaft G, while the former or upper one, is fixed on theeccentric shaft I-I. There are two of said eccentri@ shafts viz H and I, are arranged in the positions as seen'in Figs. l, 2 and 3; The latter (I) receives its motion'r through a toothed gear K fixed on it, and made to engage with the gear F, before mentioned.

The mechanism which we shall now proceed to describe,l consists of the impelling slides, the main or j oint'die, the turning dies the anti spreading plates, the wire severer or Vimpelling slides are composedof two straight rectangular and flat pieces of'meta-l or steel L M, -each of which is` att-ached toone of ,twol adjusting-and sliding carriages N, l(i). The said slides L Mrest and move toward and away from one another, on flat beds P, Q, and are guided in their movements beli-V tween and byl two parallel pieces of metal R, S, which compose the sides of receiving chambers T, U, betweenwhich the main or joint die V is arranged as seenin Fig. 5 and in Fig. 8, which is an enlargedl view of that part of Fig. 5, which exhibits the said die,

yand the impelling slides, and parts immedi'f rlhe impellingk slides are driven passingv around one of the said eccentrics while the rod Z is jointed to thek carriage 0 the impelling slide, which plays between guides. s v

The main4 or joint die V consists 'of a block of steel, having a' groove d cut across it transversely, which groove in its cross section is a segment of a circle, somewhat greater than a'semici'rcle, as seen in thel drawings.l The diameter of the said seg= ment corresponds to lthe diameter of the joint of the hinge when completed. The said die, should be made perfectly stationary, or be held firmly in position. The lower surface of it is'pla'ced on' a level with fthe upper surfaces L, M.

Betweenthe two beds P, Q, theturning die f, is arranged. Its object is to slightly bend or curve upwardthe ends of the proof the two impelling slides U j jting Parts' @a 0f the plates from Which the hinge is to be made, when their extreme ends pass also to remain in kthe position, while the joint is being madein the main die.- vThe one another,V

said turning dies elevate the ends of the 7 projections a, a, a, so that they will meet the sides of the groove of the' die V,V`and when forced forward, by the impelling i slides", be compelled to bend around in said groove into the shape required. ".Ihefposi-` tion of the `said turning with respect to; the main die, and impelling slides, when the operation of bending is @being performed, is

exihibited in Fig. 8,l wherein the central part" a (Fig. 7 is denoted (by redlines) as bent upward by the turning die, and in the act of entering the main'y die V. F ig.,9.is aside view'of the said turning die.v Fig. 10 a top view of it, and Fig. 11 an end elevation of it. It consists 'of a slide or bar having three inclined planes g, ZL, i, upon its ltop, two off whichg, z', run 1n one direction while the third vor middle one (Zz.) runs in an opposite direction. The said slide or die is operated` or elevated byv a cam le xed on the cam shaft G. It is depressed by a lever n, and

spring 0, the slide being jointed to the lever.`

The anti spreading plates, consist of'two` sliding plates Z, m, arranged with respect to the block V, as seen in the cross section Fig. 4. A vertical and longitudinal section of the plate Z, 'and the side bar R, is exhibited' in Fig. 12. A similar section of the other i of the bar is toprevent the plates of which the hinge is composed, from spreading laterally, when thejoint is being made. The purpose of lowering the slide Z is to depress it below an opening 1" made through the bar R, R, for the discharging slide S to pass oif or sever the wire at the hinge.

through, when put Jin action so Vas to discharge the hinge from the dies, after it is made. The other slide m, not only is operated like the first one (Z) and answers a like purpose, but is also intended to cut or separate the piece of wire, inserted between the two parts of the hinge, from the remainder of the feeding wire. For this purpose the slide m, has a hole t, bored through it, of a size just sufficient to receive the wire u, Fig. l, andallow it to be passed through it. Soon after the hinge has been formed'on the wire, a projection lozon the cam o raises the slide m up, in such manner as to break By means of aspring zu, and lever y, the slide m, is afterward? retracted or drawn downward,

far enough to allow the hingeto be driven' (by the slide S) through an opening w made through `the side bar S; the Vslide m ,being A while the other is made on the end of a lever f which moves horizontally on the fulcrum g', and is borne toward a cam wheel Zt', by a spring i. The saidcam wheel is fixed on of a side s, which is arranged'as seen inthe the .eccentric shaft I, andhas a camlson it,

which should beso arranged, and made as at theproper time', (while the said wheel ZL', fisbeing revolved) to press against the lever Af,and throw or. cause the carriage to move 7 forward towardthe" dies.

Theretreat of the carriage.. is effected by a spring Z, vproperly appliedlto it, and the platform c. There is ajpair of nippers m', n', fixed on the platform c', vin rear of the carriage, as seen in the? drawings. One of these nippers is fastened'to the platform, .Whilevthe other is made movableon av fulcrum 0, the jaws of the said nippers, being kept'together, or pressed `toward one'another, by a spring"4 p,`properly applied'toA the tail' of the nipper m', and to the platform.` The feeding wire n.' after passing through a guidev post gis carried between the jaws ofthe nippers 1n/n, and from thence, between the jaws ZZ and e, the hole t of the slide m, and through the centralor middle part of the die of the block V. This being done, whenever the carriage retreats, the nippers m, n', willso grip the wire, as to 9 hold it firmly and still, while the carriage moves back. The jaws CZ', e, will then slide over the wire. But when the carriage advances toward the dies'the jaws ci', e, will be caused (by the cam'k which acts against the lever f) to grasp the wire so firmly, as to draw it through the jaws of the nippers m', n, and cause it to advance into the Lmain die V. Y j

The hinge discharging apparatus, consists 1 drawings, and thrown forward at the proper time, by a cam 7" placed on the top o f a vertical shaft s, revolved by two beveled gears t, u, the former of which is fixed on the shaft s', and the latter on the cam shaft G. The 'retraction of the slide is effected by a bent lever fv, which turns on a fulcrum fw, and has one arm,y placed in a notch m made on the slide. The other arm of the lever is struck by the cam r, during its revolution, and so as to cause the lever to turn on its fulcrumin such manner as to force back the slide s. Soon after the hinge has been formed in the dies, the discharging 1 slide is moved forward against-it, and so as toexpel it therefrom. j In operating the machine one portion of the hinge (viz that shown in Fig.` 7 .isA placed in the chamber T, while 'the other, or 1 that exhibited in Fig. 6, is laid in the chamber V. This being done, the machinery should be put in operation, so as to cause the impelling slides, to advance toward one another, and by so doing to crowd the two 1 plates of the hinge together or. make them advance `with them. The turning die f should next be elevated, and in seasonfto cause the ends ofthe parts a, a, a, of the V plates, to `meet the inclined planes of it, and 1 by them be turned upward, into the segmental groove, of the die V. The feeding apparatus should in the mean time advance the wire into the space d of the die V. The impelling slides should continue their advance in such manner as to cause the parts a, a, a, of the plates to interlock, and pass around the wire, which they will be caused to do by being forced into the die V. In the mean time the anti-spreading plates Z, m, should rise up,-so as to prevent any lateral spreading of the metal, and soon after the hinge has been made one of them, viz, m, should rise upward and cut off the wire on the hinge from that without it. This being done the two plates should descend far enough to admit of the expulsion of the hinge from the dies by the slide s as before specified. We use over each chamber T or U a suitable hopper, made so as to contain a vertical pile of hinge plates, the lower one of which will be removed from the pile at each advance of the impelling slide through the chamber. The impelling slide should retreat entirely out of the chamber or beyond the hopper, so as to allow the pile of hinge plates, to fall and rest on the bed, over which the impelling slide passes. l/Vhile the slide is forcing any plate forward toward the bending dies, the plate at the bottom of the pile, or that one which was directly over the one so forced forward, will rest on the top of the impelling slide.

vVe wish it distinctly understood that we do not intend to confine our invention to the precise forms, and arrangements of mechanism as above detailed,but we mean to vary the same to any desirable extent, while we do not change the combination or principles we consider' new and as our improvements.

lVe do not claim the invention of the die V, in combination with one impelling slide and chamber, to receive the half of the hinge, as we are aware that such has been used before, for the purpose of making a half hinge, for bending it into a proper shape for a joint, but

That which we do claim as our invention, 1s-

l. The combination of the die V, two impelling slides (L, M,) and chambers T, U, and the turning die f, 'the whole being arranged and made to operate together substantially as above described.

2. We also claim the wire feeding apparatus, in its combination with the dies, or machinery for making the hinge joint, and as arranged, and operating therewith-substantially as herein before explained..

3. We also claim the slide s or hinge discharging apparatus, as combined'with the dies, or apparatus for making the joint of the hinge, and operating therewith as specilied.

4L. And in combination with the said dies, or apparatus for bending the parts a, a, a, of the joint of the hinge, we claim the slides Z, m, (by which lateral extension of the metal is prevented,) the same being made to operate therewith substantially as specified.

5. We also claim7 the combination of the cutting slide (-or part which severs the wire) with the bending apparatus, the same' being actuated, and arrangedv as described.

In testimony whereof we have hereto set our signatures this 29th day of March, A. D.

GEORGE H. HORTON. LEANDER ARMSTRONG. Witnesses:

ISAAC C. PERKINS, HENRY PERKINS.

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