US73237A - John deakin - Google Patents

Description

@uiten tetes getint fr?,

JOHN'DEAKIN, OF GLUGESTER, NEW JERSEY, ASSIGNOR TQ HIMSELF AND D. AND C. KELLY, OF PHILDELPHIA, PENNSYLVANIA.

Letters-Patent No. 73,237, dated January 14, 1868.

IMPROVEMENT IN LOOMS.'

T0 ALL WHQM 4IT MAY CONCERN Beit known that I, JOHN DEAKIN, of Gloucester, Cam-den county, New Jersey, have invented an Improvement in Looms; and I 'do hereby declare the following to be a full, clear, and exact description of the same.

My invention consists of certain devices, constructed andlarranged asfully described hereafter, for automatically adjusting the cams which operate the heddle-leversrof a loom.

In order to enable others skilled in *the artto make and` use my invention, l will now proceed to describe its construction and operation, reference' being had to the accompanying drawing, which forms a. part of this specification, and in whichv Figure 1 is a sectional elevation of a loom with my improvement, and

Figure 2 a. plan view.

,A A are the side frames; aala" are cross-pieces, and a3 is the breast-beam ot we 1oom,and in boxes secured to the side frames turn the bearings of the usual driving-shaft B. Parallel to, the shaft B turns a shorter sha-ft; C, the teeth of a cog-wheel, b, on which, are adapted to those of apinion, e?, on the shaft B, and to the shaft C are secured cams ccc. To n sleeve, D, which'slides on but revolves with the shaft C, are secured cams c c2, and into an annular groove in the sleeve projects the forked end of n. bell-crank lever, E, which is hung to the cross-piece a, and to which is connected a spring, g, secured at the opposite end to the frame of the machine, the said spring tending to maintain the lever in the position shown in red lines, iig. 2. To the crossbara are jointed ,the rear ends oi' hefldle-levers F F F', which extend beneaththe cam-shaft C,

and are connected by cords, c, to the usual heddle-frames. OnI one end of the shaft B is a baud-pulley, ol, i'ron'.;

which a band, f, passes to a pulley, I, ou a shortshaft, z, projecting through and turning in the frame A; and on the inner end of the shaft h is a pulley, m, round which, and round a pulley, n, turning on a pidncar the opposite side of the frame A, passes an endless chain, G. ".lo thefchain G `is securedA one or more plates, z', and to'the cross-piece a is hung a lever, llene end of which. is jointed to the adjacent end of the lever E, while its opposite end projects upward, opposite -the pulley it, and almost in contact with the edge of that portion of the chain G on the said pulley.4 On each ol` the levers FiF-is o. projection, o, against which bears one of the cams c, and on the lever F is a similar projection, against which bears one ofthe cams cl c2. Inasmnch as the nieclmnismfor throwing the shuttle and operating the threads is similar, in this loom to that in looms of the usual construction, and as such mechanism is'wcll known to persons skilled in this class ofrmachinery, further description of the same will be unnecessary.

Asthe shaft B revolves, a rotary motion will be imparted to the pulley m, and the chain G will be carried in the direction ot' itsnrrow. The camsc c* will revolve in contact with the levers beneath them, and each lever, with the heddle-t'rame to which it is connected, will be alternately elevated and depressed. Se long as the abovedescribed operations continue, the pattern in the fabric produced will not be changed. When, however, one ot' thev plates i on the chain G' is brought against the lever H, the latter, with the lever E, will be turned to the position shown in tig. 2, and the sleeve D will be moved-laterally, until the cam el passes from contact with the lever F', and the cam c2 is above and in contact with the said lever, the operation, ot' which will thus be se varied 'as to alter the pattern in the fabrie.- When the plate 'z' passes from contact with the lever H, the latter, the lever E, and the sleeve D, will be moved to Atheir original positions by the action of the spring y, when the lever F will again be under the control of the cam'c. 'By the above-described arrangement o the pattern-chain Gr and levers E aud'H, in respect to the adjustable cams, the usual complex and Vexpensive Vdevicesvfor adjusting the cams, are dispensed with,'and the loom is more 'certain in its action, and less liable to get out of order than these constructed inthe usual manner. A greater number of cams may be secured to the sleeve D, er an adjustable shaft, having a doubleset of cams, may be used. The lever H may be 'dispensed with, by extending the arm of the lever E so as tooccupy a position where it will be acted upon bythe plates z'.

I eiaixn as my invention, and desire to secure 'by Letters Patent- The combination and arrangement of the heddle-levers, pattern-chain, and adjustable earns, with levers EH,- or their eqiiivalents, the whole being constructed and operating substantiellyas specified.

In testimony whereof, I have signed my name to this specification inthe presence of ytwo subscribing witnesses.

JOHN DEAKIN.

Witnesses:

CHARLES E, FOSTER, W. J. R. DELANY.

Images