US25837A

US25837A - Island

Info

Publication number: US25837A
Authority: US
Publication date: 1859-10-18
Anticipated expiration: 1876-10-18

Description

J. LANCELOTT. MAKING. ORNAMENTAL CHAINS.,

Patented Oct. 18, 1859.

Inva nor;

JAMES LANGELOTT, oF SOUTH PROVIDENCE, RHODE ISLAND.

MAKING ORNAMENTAL CHAINS.

Specficaton of Letters Patent No. 25,837, dated October 18, 1859.

To all whom 'it 'may concern:

Be it known that I, JAMES LANCELOTT, of South Providence, in the county of Providence and State of .Rhode Island, have invented a new and Improved Machine for Manufacturing Sheet- Metal Chains, the same being more especially designed for articles of jewelry; and I do hereby declare that the following is a full, clear, and eXact description of the same, reference being had to the anneXed drawings, making a part of this specfication, in which v Figure l, is a side sectional View of my invention taken in the line w, w, Fig. 3; Fig. 2, a front sectional view of the same, taken in the line w, w, Fig. 3; Fig. 3, a sectional plan taken in the line y, y, F ig. l; Fig. L, an enlarged front sectional view of certain working parts. Figs. 5, 6, 7, 8, 9, 10, ll, and 12- are sections showing detached portions of the machine, and of the work produced by it.

Similar letters of reference indicate correspondng parts in the several figures.

This invention relates to a machine for manufacturng sheet-metal chains for which Letters Patent were granted to me hearing date May 4cth, 1858.

The object of the within described invention is to obtain a nachine by which the whole work may be performed expeditiously and automatically from stock consisting of metal plates of a requisite thickness previously prepared in any proper way.

To enable those skilled in the art to make and use my nvention, I will proceed to describe its Construction and operation.

A represents a bed or horizontal plate which is supported at a suitable height by any proper means. B, is an upright attached to said plate, the upper part of said upright containing the fulcrum pin a, of a lever C. On the back part of the bed A, a driving shaft D, is supported by uprights Z), b, and on this shaft two cams E, F, are placed, one of which E, actuates the lever C, and the other F, actuates a lever G, the fulcrum of which is at the upper end of an upright c. To the front end of the lever C, a plunger H, is attached by a link d. The plunger is fitted between proper guides e, e, attached to the upright B, and the back end of the lever C, is bent or curved and slotted and works on the shaft D, as shown clearly in Fig. 1, the cam E, acting against a pin f, on the back part of the lever.

To the lower end of the plunger H, two dies I, J, are attached. These dies are simply rods, one of which I, is of trilateral form at its lower part, a transverse section of which is shown in Fig. 9, or other form corresponding to the form of the cha in to be made. The other die J, is transversely of polygonal cylindrical, or other form also correspondng to the shape of the chain to be made. In Figs. 4:, 5 and 8, the die J, is represented as being of double polygonal form, one polygonal portion being above the other, and the angles of one portion in line with the center of the planes or faces of the other portion as shown clearly in Figs. et, 5 and 8, the upper polygonal portion being a trifie 'smaller in diameter than the lower portion. lVithin both dies I, J, rods g, are fitted and allowed to rise and fall freely. These rods are both attached to a plate K, the upper end of which has a pin z', Secured to it, said pin fitting in a recess y', in the front end of a lever L, which has its fulcrum pin Is, in the upper part of the upright B, as shown in Fig. 1. The back end of the lever L, is acted upon by the cam E, which has two faces Z, m, one of which Z, acts against the pin f', of lever C, and the other m, against the back end of lever L, see Fig. 3. To the lower end of the plate K, a collar n, is attached by a rod 0, which also connects the rod h, to the plate, said collar being fitted and working on the lower part of the die J, as shown clearly in Figs. el, 5, and 8.

The lever G, which is in a horizontal position is connected by an adjustable bar M, with a slide N, which is fitted between proper guides ;0, 79, attached to a block O, on the front part of the bed A. To the slide N, a bar P, is attached which bar works under a female die Q, that is fixed in a stock g attached to the block O. The die Q corresponds in form to the male die I the former of course being placed in line with the latter. The bar P, has a die r, fitted within it. This die is of cylindrical form and is allowed to turn within the bar P, said die being attached to a lever s which has a pin z' on its outer end said pin fitting in a double' oblique slot u, in a plate R, attached to the block O, as shown clearly in Fig. 3. The upper surface or face of the die o, is recessed to correspond with the face of the die I, and vertically within the die a", a rod 1), is placed the upper end of which is provided with vertical spurs or projections a', which are at the center of the face of the die 7' andserve as guides as will be presently shown.

The female die Q, has a concal interior as shown clearly in Figs. l, 2 and 4:. In order to insure a good cutting edge this form of the die Q, is essential and in order to prevent an unnecessarly large chamber within the die consequent on said conical form a filling b' is employed, said filling being composed of one or more plates, (one only is shown in the drawings) and extending nearly up to the top of the die. Any soft metal will answer for the filling 25. The lower end of rod e, has a circular boss c' on it and this' boss rests on a spring d' as shown clearly in Figs. 2, 3 and 5. To the underside of the boss c' a swage R, is attached, said swage being' formed of three arms projecting from a cylindrical shank as shown clearly in F ig. ll. Directly over the female die Q, a cap e', is placed said cap being perforated to allow the male die I to pass through.

Within the block O, and underneath the slide N, a plate f' is placed. This plate has an opening g' made in it, said opening being formed of six radical slots and a polygonal center as shown clearly in Fig. 12, the center of said opening correspondng with the form of the die J. In the block O, at a short distance below the plate f', a plane h' is placed.

This plate has a hub i on its upper surface in which hub three radial grooves are made to receive three clamps j" shown clearly in F ig. 6. The clamps are simply rectangular bars having` each a notch k' in its under side as shown in Fig. 7. Against the outer ends of these clamps springs Z' bear. The inner ends of the clamps y', are notched to form two or more faces according to the form of the chain. In Fig. 6, each clamp has two faces at its inner end the chain to be made being of hexagonal form as shown clearly in Fig. 6, the chain being indicated in red.

S, is an arm or lever the inner end m of which is of annular form and encompasses the hub i' of plate h'. The inner edge of the annular end m' of arm S, is notched to form a cam as shown clearly by the dotted lines in Fig. 6, and the cam m fits within the recesses or notches ic' of the clamps y". The arm S, is slotted longtudinally and is connected by a rod n' with the lever G. To the lever Gr, an arm T, is attached at right angles. The outer end of this arm T is connected to a slide U, which has a pawl 0' attached to it as shown clearly in Fig. 1.

On the top of the die-stock g, a spring p' is attached said spring having a pin g' attached to its under side, said pin being provided with a leveled or rounded front side as shown in Fi l. Against the outer edges of the levers (i L, sprin r', s', bear respectively. The plate R, n which the oblique slots n, n are made has a tri-lateral plate V, attached by a pivot t'. To the inner side of this plate at its center aspring u' is attached, said spring having a knob 'u', at its end. The outer angular edge of plate V is notched to receive a catch w' against the outer part of which a spring w' bears.

The operation is as follows: The stock from the chains are made of thin metal plates A prepared in any proper way and of suitable dimensions. The shaft D, is rotated by any convenient power, and the operator takes one plateat a time and feeds it underneath the cap e' and over the die Q. The die I, is made to descend by the action of the face Z, of the cam E, on the pin f, of the lever C, and said die cuts a blank from the plate corresponding to its face, and also to that of the female die Q, into which the male die passes. The blank falls within and through the die Q, and is re tained in proper position by the filling b' falling properly within the die 7", and being retained therein by the rod g, until the male die I, is elevated free from the die Q. As the die I, ascends the rod g, is retained down on the blank by the action of the part m, of the cam E, on the lever L, and when the male die is perfectly free from the female die the lever L, and rod g, ascend and liberate the blank. Before however the die I, is fully elevated the lever G, moves the slide N, and block P, and the die r, is brought in line with the die J, so that at the next descent of the die I, the die J, which of course descends simultaneously with it, will act upon the blank in die 'I', and by being forced down on the center of the blank centrally between the spurs or projections a on rod 1) will swage the blank in the form of a cap or cup as shown clearly in Fig. 10. The upper end of rod e, forming the bottom of die r, while the three fixed recess shape the arms of the blank as the rod o descends, the upper end of the rod e, forming the base, the upper ends of the arms inclining a little outward. The spurs or projections a insure the proper adjustment of the blank within the die 7',

and also cause the arms of the blank (or link as it may be termed when bent) to assume a proper form as the die J, and rod e,

descends within the die 7". When the cup,

cap or link is formed by the die J, being forced down in the die 7", the die J, rises and carries the cap, cup or link with it, the cap, cup or link adhering to the die in consequence of the decreased diameter of its upper portion which forms shoulders and causes the cap, cup or link to bind snugl to it. As the die J, ascends the slide TV, bar P, and consequently the die 7' are moved back to their original position by the lever Gr, the die 7", being brought in line with the die I. The two dies I, J, now

descend the former as before cutting a blank from the plate A and the latter die J, carrying down the cap, cup or link into the perforation of the plate f', and with the uppermost link of the chain'the latter being held by the clamps y". The plate f' serves also as a guide to the swage R, which Works through it as will be presently shown, the rod h, and collar n, either or both being used to insure the discharge of the cup or cap from the die. Simultaneously with the discharge of the cup, cap or link a blank is fitted in the die 7", and as the two dies I, J, again ascend the die 7', as before is moved underneath the die J, and during the movement the die J, is rotated a certain distance in consequence of the lever S, pin t, and oblique slot u, and the position of the die 7", is changed relatively with the die J about the one siXth of a revolution. The two dies I, J, again descend, the former I, without result, but the latter J, swages the blank in 1 into a cap, cup or link as before. During this swaging of the cap or cup or link, the cap cup or link deposted in the chain previous to the last and consequently the second one from the top is clenched by the swage or clenching tool, R, as the latter is forced down by the action of the die J, on the rod u, the center cylindrical portion of the swage keeping the arms of the uppermost link in proper position to receive the succeeding link see Figs. 4 and 5.

The object in having the die r, partially rotate will now be apparent, for in order to clench the links they must be set alternately in varying positions, in order that their arms may interlock, and as in the present case the links have three arms, the links must, in order to be properly adjusted or fitted together be rotated one siXth of a revolution. Each time a ling is clenched on the chain the latter is retained by the clamps j; the inner ends of which are pressed against the chain by the action of the cam m', said clamps also giving the proper external form to the chain performing the double function of clanps and swages. When the die J, descends to adjust a link in the chain the latter is held by the action of the springs Z' only on the clamps y" and consequently the die is allowed to feed the chain down each time a link is adjusted to it.

After the operator has fed the plate A over the die Q a short distance, the plate is fed automatically by the pawl o' which catches into the perforations made by the cutting out of the blanks, the catch g', which also works into the perforations serving as a retaining or holding pin during the forward movement of the pawl 0'.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is,

1. The employment or use of the filling b' in the female die Q, when used in connection with a traveling die 7', for the purpose of insuring the proper presentation of the blanks to the latter, and at the same time admitting of a proper cutting edge for the female die Q.

2. The employment or use of a forming die J, in connection with a rotating or partially rotatng die 7", arranged substantially as shown to insure, simultaneously With the process of swaging of the blanks into the proper shaped links, the proper adjustment of the latter for interlocking of the same.

3. The decreased diameter of the upper portion of the forming die J, so as to insure the adhesion of the cap, cup, or link, to it and enable said die to perform the double function of die and carrier, when said die J, is used in connection with the die 7", to operate conjointly as and for the purpose set forth.

4. Constructing the die 7", with a rod 'u', With or without shears or projections a', and arranged substantially as and for the purpose set forth.

5. The screw rod h, and collar a, either or both, applied to the forming die J, and arranged to operate in connection with the dic 7', and rod q), substantially as and for the purpose set forth.

6. The clamps y', in connection with the swage or clenching tool R, or its equivalent, arranged to operate conj ointly as shown, and for the purpose specified.

7. The guide plate f, in connection with the swage or clenching tool R, the former serving as a guide to the latter and insuring its proper action.

8. The swage or clenching tool R, when constructed as shown to bend or clench the arms of the links and at the same time keep the arms of the uppermost link in proper position so that the latter may readily receive the succeeding link.

J AlMES LANCELOTT.

VVitnesses:

C. M. HUGEEES, 'MICH. HUGHES.