US133816A - Am photo-tinoehamic co - Google Patents

Description

EECEa HUGE MoEN'rEE WARD, or Loor BRIDGE MILLS, BALLYMAGOEAGEY, IRELAND.

IMPROVEMENTIN SPINNING AND DRAWING FRAMES.

Specification forming part of Letters PatentlNo. 133,816, dated December l0, 1872.

To all whom it may concern:

Be it known that I, HUGH McEN'rEE WARD,

` of Loop Bridge Mills, Ballymaconaghy, in the county of Down, Ireland, have invented certain new and useful Improvements in Machinery for Spinning and Twisting Fibrous Substances; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing forming part of this specification. v

'Ihe object of this invention is to stop the supply of sliver or material to be twisted or spun to the top or feed rollers when the sliver or thread breaks. To this end I provide for each pair of feed-rollers an arrangement of mechanism, which, on the breaking of the sliver or thread, will be set in action and will push the sliv`er out of the bite of the rollers, and will hold the broken end securely-until the attendant pieces the broken thread or sliver and the mechanism is restored to its normal position. The invention consists in the construction and arrangement of devices, as hereinafter described.

In the accompanying drawing I have shown,

in plan view at Figure Vl, and in sectional elevation at Fig. 2, my improvements.

In these figures, A A are the top or feed rollers, and B B are the drawing or delivery rollers. C is the bar, which guides the rovings or slivers to thebite'of the top or feed rollers. D is the pendent lever, (one for each pair of top rollers,)`whicli is held in position by the twisted sliver or thread that is being spun. In rear of the guide-barG I mount a fixed bar, E, parallel thereto, for the purpose of carrying a series lof forks, F, one for each pair of feed-rollers. Between the prongs of these-forks the slivers pass to thefeed-rollers, and the space between the prongs is such as to allow of the slivers being traversed as usual over the rollers to distributel the wear over their surfaces. These forks are pivoted to the fixed bar so as to lie horizontally over the rollers and.\be free 'to rock tofand fro. The forks are severally provided with a curved rear extension or ltail-piece, F', which is connected to or-embraced by an extension of the pendent lever D. This lever D is pivoted to and pendent from a bracket attached to the back of the fixed bar The upper end of each of these pendent levers terminates in a curved inger,'D1,'which bears upon the tail end of a cranked rock-lever, Gr, pivoted to one of a series of brackets attached to the front of the fixed bar E. This rock-lever G carries at its upper end a weighted presser-piece, H, which is made to drop into a groove formed in the guidebar C, before mentioned, and under it (when the presser-piece is raised) the sliver passes to the feed-rollers. To the lower end of each pendent lever is' attached an arm,

D2, carrying a pin or roller, d, at its outer end, 1`

over which the thread or sliver passes on its way to the flier. The pressure which the thread puts on this pin or roller servesto hold back the lower end of the pendent lever in the position shown by the drawn lines of Fig. 2, and keep its curved finger bearing upon the tail end of the rock-lever G, carrying the weight under which the sliver passes. The arm D2 extends rearward and forms a stop, which is intended (when the breaking of a thread causes the lever to fall forward toward the dotted position of Fig. 2) to present itself to the ordinary rocking-bar I, and thus enable that bar to give a forward impetus to the pendent lever, whereby that lever will be caused to throwthe fork F connected with it to one side, and thus move the sliver out of the bite of the feed-rollers. At the same time this motion of the pendent lever allows the rocklever G to drop the weighted presserpiece H into the groove of the guide-bar C. The effect of this movement will be to hold the sliver firmly between the weight and the guide-bar, and to stop a further supply until the sliver is pieced and the mechanism is .readjusted In order the more eifectually to stop the supply of sliver when the thread is broken, I mount on the extremity D1 of the lever D the tumbling-catch D4, which, as the lever is thrown into the dotted position of Fig. 2, will catch onto the fixed bar E and retain the lever in the dotted position, at which time it will be clear of the weighted lever G.

In order to readjust the mechanism for the recommencement of the spinning operation, Y

the attendant first lifts the tumblingcatch D4 off the bar E, and then pushes back the arm D, which causes the pendent lever D to pull the fork F, (between the prongs of which the sliver hangs) into the position shown by the drawn lines of Fig. l, thus pushing the rove or sliver into the bite of the rollers, and the curved finger of the pendent lever D at the same time raises the weighted lever G. The attendant then pieces the thread, after which the operation of spinning goes on as before.

Having` now set forth the nature of my invention of improvements in machinery for spinning or twisting flax, hemp, jute, and other fibrous substances, and explained the manner of carrying the same into eiicct, I Wish it to be understood that I claimy 1. The combination, with the pivoted vibrating fork Fprovided With the curved tail-piece F', of the pivoted pendent lever D and the horizontal arms D2 D3, as specified.

2. The combination of the tumbling-catch D4 with the levers D Dl and bar E, as and for the purpose specified. f

3. The combination of the Weighted roeklever G H, guide-bar C, fork F, lever D D1, and arm D2D3, all arranged to operate as specied.

In witness whereof I, the said HUGH MG- ENTEE WARD, have hereunto set my hand and seal the sixth day of January, 1872.

HUGHMOENTEE WARD. [L. 3.]

Witnesses:

MACARTHIE KVANOE, t Belfast, Ireland.

JOHN THOMSON,

Belfast, Ireland.

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