US402171A

US402171A - Island

Info

Publication number: US402171A
Authority: US
Publication date: 1889-04-30
Anticipated expiration: 1906-04-30

Description

m P; L.. LEWIS.

'GUTTING OFF MACHINE FOR JBWELBR-S STOCK. No. 402,171. Patented A nso, .1889.

WITNEEEEE- IN TIJR.

UNITED STATES PATENT OFFICE.

FRANK L. LEWVIS, OF PROVIDENCE, RHODE. ISLAND.

CUTTING-OFF MACHINE:

FOR JEWELERS STOCK.

SPECIFICATION forming part of Letters Patent No. 402,171, dated April 30, 1889.

Application filed January 10,18 89.

To all whom it may concern:

Be it known that I, FRANK L. LEWIs, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Cutting-Off Machines for Jewelers, &c.; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the 'art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My invention relates to machines for transversely cutting or severing jewelers stock or wire into suitable lengths. Usually heretofore it has been the practice to providea suitably-mounted spindle or arbor with a cuttingoff saw or disk adapted to be rapidly re-v volved, combined with a movable rest provided with an adjustable stop, therebyfurnishing means whereby the blanks may be cut off from the rod or wire and to any desired length. Such former arrangements, however, are objectionable from the fact that the blanks were cut singly, whereas it is very desirable that a series of them be cut at once, thereby not only increasing the capacity of the machine, but obviouslyeffecting considerable saving of time. Take, for example, the studs or posts which enter into the construction of collar-buttons, 850.. These are usuallymade of round plated wire, (solid or hollow, as the case may be.) It is very essential that such blank studs be very uniform in length vand that the ends be cut offtrue and smooth in order to avoid filing, &c., so that when they are placed in position upon the button-back to be soldered they will stand true and vertical after the parts are thus united.

My invention consists in providing an arbor with a series of two or more circular saws separated from each other by collars whose thickness is the same as the length of the blanks to be produced, combined with a rest or table adapted to support the wire and present it simultaneously to the cutting-disks and a stop or gage adjustably secured to the rest. 7

It also consists in providing the machlne with a series of stationary clearer fingers 0r Serial Nb. 295,918. (No model.)

guards, the ends of which are inserted be the saws, new blanks being constantly accu-= mulating and wedging themselves therein to the injury of the saws. In such event the thin saws frequently become forced to one side, thereby, if the stock be continually fed along, producing blanks irregular in length and having slightly-beveled ends. Another advantage of the clearer is that it prevents the blanks from being thrown tangentially from the saws and scattered about the room, all as will be more fully hereinafter set forth and claimed.

In the annexed sheet of drawings, Figure 1 represents a front elevation of a small sawing-machineprovided with my improvements. Fig. 2 is a transverse sectional view taken on line a: a: of Fig. 1. Fig. '3 is a plan view, and Fig. 4 is a front view of the clearenguard detached.

A detailed. description of my improved cut= ting-off machine is as follows:

A designates the machine as a whole.

a is the bed or frame to which the several parts are mounted and attached.

11 indicates the saw arbor or spindle, the

same being mounted to revolve in a bearing, 0, of the frame. To the arbor is secured a pulley, e, which in turn is adapted to be revolved by a belt leading thereto from a suitable driving-pulley, as usual. The opposite end'portion of the arbor, as drawn, is adapted to receive a series of circular saws or cuttingdisks, 3. The saws are placed at intervals upon the arbor, intermediate collars, a, of the desired thickness serving to accurately separate the saws from each other. A nut, 02, fitted to the screw-threaded end of the. arbor in conjunction with the outside collar, affords means for firmly securing the saws upon the arbor.

. To the front side of the bed is attached a support or bracket, 71., upon which a rest or ably secured to one side of the bracket 71.

This gage is so mounted and adjusted with relation to the first saw (nearest the pulley) that the first blank to be severed will have exactly the same length as the other simultaneously-severed blanks.

m designates the clearer, which forms another part of my invention. The clearer is made of suitable metal and attached to the frame a by bolts passing through the clearerbase 111., as clearly shown. The clearer or guard is provided with a series of spring-fingers, 2', adapted to bear lightly against the said spacing-collars u, as shown in Fig. 2. By means of this device it will be seen that as the wire or stock w is fed forward to the revolving saws or cutters the wire is severed simultaneously into a series of short pieces or blanks, w',which are forced from the saws by the spring fingers or clearer i in case the blanks do not fall freely from the table f and drop into a receptacle, 1), beneath. The pan may be removed through an opening, 19, formed in the bed a.

I would state that my improvement is well adapted to be employed when other forms of stock are to be cut into lengths-as, for example, drawn wire, plated or otherwise, solid or tubular, round, angular, or polygonal in crosssection, or even ribbon or fiat stock may be as readily cut simultaneously into lengths.

It is obvious that the saws and collars may be so arranged upon the arbor as to simultaneously cut off two or more series of blanks having different lengths, and by the introduction of thin stationary partitions the blanks thus cut may be deposited in the respective receptacles or compartments without being intermixed.

I do not claim as my invention a series of saws mounted upon an arbor or gang-saws adapted to simultaneously cut stock into shorter lengths.

I claim as my invention- 1. The combination, with a series of suit ably-mounted cutting-off saws, s, of stationary guards or clearers 1', arranged to intercept the severed blanks, substantially as shown and described, and for the purpose set forth.

2. The combination ,with a series of mounted cutting-off saws, s, of a series of stationary guards or clearers, 17, arranged to intercept the severed blanks, and a sliding table provided with a stop-gage, substantially as shown and described.

In testimony whereof I have affixed my signature in presence of two witnesses.

FRANK L. LEVIS.

Witnesses:

CHARLES I'IANNIGAN, GEO. H. REMINGTON.