USRE11344E - Frank mossberg - Google Patents

Description

Y F. MOSSBERG. JBWBLER'S TURKS HEAD ROLL.

`UNITED STATES PATENT OFFICE.

FRANK MOSSBERG, OF ATTLEBOROUGH;MASSACHUSETTS, SSIGNOR TO THE MOSSBERG MANUFACTURING COMPANY, OF SAME 'PLACE;

J EwE LE rvs TURKs-H EAD Ro LL.

ECIF-ICATION forming part of Beissued Letters 'Patent No.11,344, dated June 13, 1893. Original No. 484,108, dated Batch-r 11, 1892. Applioationfor reissue tiled May 147, 1893. Serial No. 4745611.

To dll whom it may concern:v

Be it known that I, FRANK. MossnERo., of

e ttleborough, in the county of Bristol and State of Massachusetts, have invented certain ,new and useful Improvements in Jewelers. ITurkls-Head Rolls; and I do hereby declare bars of inetal to diierent sizes. The machine is known specifically as a turks-head.

The object of the improvement is to pro' duce a machine that can be used for rolling stock down in both directions, vertically and laterally, at one operation to dierent sizes withlone set of rolls without changing any of them for other rolls of a different thickness, as it is necessary to do in the usual form of turks-head. f

It is fully illustrated in the accompanying drawings. r

Figure 1 is a front elevation ofl the machine, the front'plate being broken away to show the position of the rolls, &c. Fig. 2 is a vertical section taken on line a: in Fig. 1, looking to the left. Fig. 3 is a horizontal section taken on line y y in` Fig. 1, looking upward. Fig. 4 is a diagram showing the relative positions of the rolls and their arbors. Fig. 5 shows a side elevation of a roll-carriage. Fig. 6 represents a face `v-iew of the head of one of theI graduated setting-screws. The caseA fs made in the shape of a vertical shallow box. The bottom or back and the sides: are preferably made integral in one casting, with partitions to serve as guides for some of the carriages carrying the rolls. A cover H is secured on the front of the case by screws, and both cover and back have central apertures made through them. There are four carriages E B C D, all made alike in size and shape, carrying the four rolls b c d e, respectively, which are faston arbors having open bearings in the sides of the carriages. (See Fig. 5, which is a sideview of` one of them.) Each of these carria'ges has a short screw e b c d', which screws are fitted lto screw into the closed ends of the carriages, and have broad circular heads `with holesin their peripheries'to receive a bar-wrench to turn them by. ,These screws are for the purpose of adjusting the rolls to `take up any reduchas no motion except a slight one toward the 'center of the case when adjusted for wear,&c.

' Carriage E is held in a'recess in the barh, and has, besides the slight motion in that re,- cess for adjustment by screw e, a motion with the bar in a direction to and from the center -of the case controlled by the screw n.- The bar-h isguided in its movements by one end resting against the partition a and the other end against the inside of the case A. y

The carriage D `isheld in a recess in the barlg and has the same arrangement of adj ustment for wear as carriage E, and the bar g has a recess in its .upper end, iu which the bar h slides, (see Fig. 2) which connects the two `bars together, so that when the bar h is moved up or down the'bar g goes with it, though at the same time the bang and carriage D hav-e a motion to and from the center controlled by the screw p.

.Carriage C is held in arecess in the bar fV (see Fig. 3) to the bar g, so that when the latter b ar is moved to or from the: center thehun'. f

and carriage C move laterally with it.

It will .be seen that the relative positions of the rolls are these: Rolll b has its periphery resting against one of the plain faces of the roll e, and; roll e has its 'periphery resting against oneof the plane faces o f the roll d, which roll has its periphery resting against one of the faces of roll. c, the latter roll being in like position with regard to' roll b,

from which we started. New if the roll e is drawn upjfrom the center of the screw n its plane face will slide on the periphery of the roll b. At the same time the screw n, by drawing up the bar'h with roll e, will also, by its ICO connection with bar g, draw up that bar and roll d, the periphery of Vwhich will slidel on the face of the roll c. In this way the opening between the rolls will be lengthened vertically; but the rolls will still be in contact with each other. .Then by drawing bar g from the center bythe screw p the roll d will slide its plane face along the periphery of the roll e, and the bar g, will, by itsconnection with the bar f, move that bar and roll 'laterally and slide its periphery on the plane face of the-roll b, which will enlarge the center opening laterally, still maintaining the lzontact of the rolls with each other. This 'is shown in Fig. 4, where the rolls have each one corner in the center and there is no opening; but by turning the screw 'n the roll e is raised to dotted line s, and the roll, d, being drawn out by its screw p and up by the connection of its bar gwith the bar h, reaches the dotted lines s', and the roll O, by the connection of its bar with the bar f,is moved to the dotted line s2 and a square opening is formed in the center. It will be seen that the opening between the rolls can be made longest either vertically by using the screw fn, or laterally by the screw p, or square by turning both equally, and that rectangular bars, square or oblong, can be rolled to any size not over that of the thickness of the rolls. n

The setting-screws nl p are alike in shape and size. They have collars on them inside the sides of the case to resist the thrust of the rolls and are fitted to screw into the bars hand g back of the carriages. The screw n passes through a round hole in the side of the case A; but the hole for the screw p in the side of the case is made oblong to allow the screw to rise with the bar g. n

The turks-head in usc by jewelers is'made with an upper and lower roll adjustable with regard'to each other and two side rolls, also adjustable laterally, placed to run between the upper and lower rolls, the thickness vertically of the bar rolled being that of the side rolls, vand for each different thickness a diner-- ent pair of rolls must be provided,wh ich makes it necessary to keep a large stock of rolls on hand with the trouble of exchanging them for different sizes. A turks-head differs from jewelers reducing rolls in having no mechanism for drivin-g the rolls, as it is used like a draw-plate, the end of the bar to be reduced being made small enough to pass through the opening betweenthe rolls and then drawn through by means of pinchers, as a wire is drawn through a draw-plate, the rolls being turned by contact with the bar.

Having Vthus described my improvement, I claim as my invention-7 1. The combination of four rolls placed around a center, each roll having its periph` ery in contact with the plane face of the roll next to it, the rst and second rolls having a connection between them, whereby when the first roll is moved the second roll will be moved in the same direction, andthe second and third rolls having a connection between them, whereby the second roll being moved the third roll will be moved in the same direction with said connections, and means for moving the first and second rolls, substantially as specified.

3. The combination of the case A, carriages y B, C, D and E, sliding in ways therein, rolls b, c, (l and c, held in bearings in said carriages, screws n and p, passing through the sides of the case and threaded into bars h g, and bars h, g and f, arranged to slide in ways and connectedtogeth'er by sliding connections, substantially as set forth. j l

r FRANK MOSSBERG.

Witnesses;

l `RANK W` CARPENTER, CARL CHRISTENSEN.

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