US74693A - James m - Google Patents

Description

INVENTOR.

` A TTo H N EY.

' Imran-ron,

Y WITNESsEs. v Jeff/M i v a I mi JAMES M. JAY,.OF CANTON, OHIO.

Letters Patent No. 74,693, dated February 18, 1868.

IMPROVEMENT IN MACHINE POR GUT'I'ING GLAZIERS POINTS.

@te elgemle eetetteh tu .in tlgese 'tettets ntent mit melting pret et tige stime.

T0 ALL WHOM IT MAY CONCERN:l t

Be it known that I, JAMES M. JAY, ofUanton, in the county of Stark, andState of Ohio, have invented a new and useful Machine for Cutting Glaziers Points; and I do hereby declarcthat the followingis a full, clear, and exact description ofmy invention, reference being had to the accompanying drawings, and *tov the letters of reference marked thereon, of whichdrawings-v Figure 1 is a side view of my machine.

Figure 2 is an end view of the same'.

Figure 3 is a plan of the same.

Figures 4 are views of one of tho rotary cutters.

Figures 5 are views of thefeed-lever, with its pawl and spring,

The nature of my inventiouconsi-sts in a peculiar arrangementof two or moresets of rotary cutters, which4 are so arranged as toA cutfrotn the sheet of t'in, zinc, or other suitable material, which'is fed up to them through suitablyarrnnged rollers, two or moerows of glaciers' points at each revolution ofthe main driving-shaft, the number of rows depending on the number of sets of cutters, and the points being so cut from the sheet as to prevent any waste of material, by means of :.whichmachinery I am able to manufacture Jglazierspoints with great rapidity and economy, thus'lessening the `cost of said .points,and thereby benefiting the public.l

-To enable others skilled in-theart to make and use my invention, I will proceed to describe its construction and operation. V I e A A are the side-pieces of the frame of the machine,rwhich are firmly connected and secured together by the end-pieces B and() and the bolt W.` D is the main shaft ofthe machine, which is arranged in boxes .on the side-piecesA. A, as'shown. On thisshaft D are placed the ily-'wheel E, gear-wheel F, the arms K K, which carry oneset of the rotary cutters, and the pulley Al Motion isimparted to shaft D by means of a belt over the pulley A,or a crank may be put-on instead'of the pulley, and the machine be turned by hand-power. The shaft H is arranged in boxeson the side-piecesA A, as shown, and on this shaftv is placedv the gear-wheel G, whichgears into the wheel F on the shaft D, the arms O'O, which carry aset of.4 cutters, which work in con. nection with the cutters on the arms K K, and tbe cam I, which'works the feed-motion. The feed-rollers P and Q are arranged in uprights Z Z, on the side-pieces A A, and are geared together bythe gear-wheels R and S, at their ends, as shown. On the roller Q, and at the end opposite from that to which the 'gear-Wheel S Ais` attached, is placed the ratchet-wheel T. The'feedllever U, seen in detail in figs.V 5, is hung on the .roller Q, between the ratchet-wheel T and sidefp'ieceA, 'as fully shown in fig. 2. On this lever U is secured the pawl V, by means of screw'g, and said pawl is made towork on the ratchet-wheel T, by means of a spring, d, attached to it, and placed behind a. pin, b,- in the lever Urns seen in gs. 5. A catch, c, with-spring, 0Z,e is attached `to the side-piece A, as shown, and'works on the ratchet-wheel T; It is easily seen that, at each rotation of the shaft H, the cam I, operating -onthe 'feed-leverfU, will cause a partial rotation lot the rollers Pand Q, they4 being geared together through the action of the ratchet-,wheel T and pawl V, and by means of'this partial rotation, the sheet of tin',or `other material to be cut, which is fed in over Vthe table Z, will be fed up to the cutters, a distance depending on thelength of the cam I and the distance of the roller Q from the shaft Hl The spring e is attached to the feed-lever U and thev sidepiece A, 'and serves to keep said lever drawnup to the cam I. 4'.Ihe catch c serves to prevent the feed-rollers from' being turned backwards, by the backward motion of the feed-,lever U, whichtakes place .by means of the action of 'the spring e, while the cam Imakes a setuirotation from the position shown in fig. 1. The arms K K are attached to each other at their e'nds byI theV cutterbeds L L, and the cutters. 'M and Nare'secured to these cuttersbeds by the screws le h, as`shown. The arms O 0 are also attached by the cutter-beds L L, and the 'cutters Maud-N are attached to these cutter-beds by the screws The cutters -M and M are made with saw-toothed edges, the teeth being made of the same shape that the glaziers points are to have, and theyn-re so. arranged on the cutter-beds' L and VIt that, in rotation, a tooth on the cutter M shall-come opposite a space, or between two teeth'ori the cutter M, and 'vice versa. The cutters N and N are simply straight knives, as shown. .These cutters M Naud MNma'y be so-arranged as to cut alongtheir VWhole length at oncc, or they may have a shearing cut, commencing t cut at oneend, and cutting across, as may be found desirable, the cutters in thejirst case being parallelto the shafts D and H, and, in the `'second case, beingplaced at a small angle with said shafts,but still in the plane ofthe surface of their cylinder of rotation. I

Having thus fully described the constructionl of my machine,the modus operandi is easily seen. A sheet of'the material to be cut into points beingY placed on the table Z, it is caught by the feed-rollers Q and fed up to the cutters, as before shown, the feeding up' of the metal being accomplished when the cutters' are separate, as seen in'iig. 1.l The cutters being in' rotation, the toothed cutters M and M, coming together,

'as seen in plan' in iig. 3, cut from the sheet of metal a ro'w of points, and leave another row on.the sheet. The

cutters N and N then come around and cut off this row of `points left on the sheet. The sheet is then fed up a distance equal tothe height of a point,.and the same'operation of cutting is repeated, and so on until the sheet i's cut up. l

Itis readily seen that, by having two or more sets of cutters M N cnt the shaft D, and a corresponding number on the shaft H, and so arranged that, in rotation, a straight cutter should follownext to a toothed cutter, and having the cam I of such a shape Aas tofeedup the metal immediately after each set of straight cutters N N shall have iinishedtheir cut, the speed-of cuttingthese points may be increased to almost any desired/point'. It isal'so easily seen that, by mak-ing the teeth on the knives or cuttersM M ofthe proper form,

shoe-nails or brads, with heads 4on one side, may be'made with great ease and rapidity.

- Having thus fully described my machine, whatI claimas myinvention, and desire to secure by Let-ters Patent, isf# y i 4 l i ,i 1. The arrangement andA combination of the rotary cutters M N, M N, on the shafts D and H, when operating in connection with each other through the gear-wheels F G, for the purpose of cutting glaziers points, vor

kanybrads or nails which may be cut from sheet metal, substantially in the manner herein specified.

' '2. The arrangement andcombination of the' cam I, feed-lever U, with pawl V, ratchet-wheel T, catch e, and

lfeed-rollers P Q, when used in combination with the rotary cutters M. N,IM N, substantially in the manner-and for the purpose herein specified. A

I As evidence that I claim the foregoing, I have hereunto set my hand, in presence of two` witnesses.

Emmy LAIRD.'

Images