US892982A - Stop-motion for spinning and twisting machines. - Google Patents

Description

PATENTED JULY 14,1908.

APPILIGATION FILED AUG.6, 1907.

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4 UNITED SAM DEAN, or LOWELL, MASSACHUSETTS vS'ICP-MO'IIION FOR SPINNING AND TWISTING MACHINES.

Specification of Letters Patent.

Patented July 14,1908.

Application fil'ed August 5; 1907? Serial No. 387495;

To all whom it may concern? I Be it known that I, SA DEAN, asubject of the United Kingdom of Great Britain and Ireland, residin at Lowell, in the county of Middlesex and setts, have invented a certain'new and useful Im rovement in Stop-Motionsfor Spinning and Twisting Machines, of which thefollowingris a specification. I I his invention relates to stop-motions for spinningand twisting machines, in which a using and falling late or rail is used to control the laying ol the yarn on the bobbin, spool or other tube, and is particularly intended for worsted cap-spinning and twisting machines.

In ca '-spinnin machines, such as are represente in the rawing, thecaps are su orted on stationary spindles-and the b0 ins or s ools are turned on the s indles by the usua means (not shown) an the bobbins are raised and lowered by a lifter-plate to put successive layers of yarn on said bobbin, the lower limit of this vertical traverse increasing until the predetermined quantity of yarn is laced on the bobbin, the yarn being guide to its place on the bobbin by the bottom edge of the cap in the usual manner. Thelifter-plate is controlled by the usual vertical guide-rods; which pass throu h transverse rails whichform a part of t e frame of the machine inthe usual manner .and the stop-motion device is ut in operation to stopthe machine by t e descent of one of these distance.

The object of this'invention is' to stop the machine as soon as the bobbin or other yarnreceiver has taken on a predetermined quantity of yarn, instantly, and to prevent the machine from being started too suddenly in such a manner as by the shock of starting to 'Fig. 1.

A indicates the frame; a, the bottom rail; a the spindle-rail; B, stationary spindles supporting the caps I); C, the tubes or shells provided with whirls c, which are rotary on ommonwealth of Massachu-.

guide-rods to a predetermined.

the spindles B, being driven by bands (not shown) connecting said whirls to the bandcylinder D; E, the lifter-plate; ie, the lifterrods; F, bobbins, carried by the tubes C which rest on said lifter-plate; e the longitudinally reciprocating chain rod which,

through chains e and pulle s e actuates the lifter-plate; the twist-whee G twine-wheel G, fast on the main-shaft D or cylindershaft, the belt g connecting said twine-wheel to said twist-wheel; a inlon 9 fast on the shaft of said twist-whee and engaging a gear 01 fast on the shaft 11 of the bottom front roll I; the front rolls I I, the carriers J J; the back rolls K K; the fast ulley/d and loose pulle d on the main shaft D ;these parts are al of the usual construction and operation.

Usually the non-rotary horizontal shi per-rod L carrying a belt-fork Z or be tguide isiformed in a single piece or section and carries a nut Z -engaged by a horizontal screw M which may be turned by a crank m to move said shipper-rod longitudinally to ship the belt D from one of the pulleys d d to the other, to sto or start the machine. I retain these parts, but I make the shipperrod in two alined'sections, l 1 each of which is provided with a hook or coupling-counterpart Z Z? adapted to engage the hook of the other part, so that by turning the screw M,

in; the proper direction I can shift the belt D from the loose pulley to the fast pulley, to start the machine.

It will be understood that the lower limit of the vertical traverse of the lifter-plate descends, as the yarn is woundupon the bobbins from the bottom to the top of said bobbins.

I provide means by which as soon as the bobbins are filled to a predetermined height, the books I Z will be uncoupled and the section I of the shipper-rod which carries the belt-fork will be moved longitudinall by a spring,--represented as a helical spring surrounding sald section I and compressed between a stationar bracket a on the frame A and a collar fixed on said section I and will shift the driving belt D from the fast pulley d to the loose pulley (P.

I pivot a lever N at n on the frame near the inner end of the section 1 and on the rear end of this lever I support the guide Z in which said section slides. The other or front .end of said lever N reaches in front of the frame A and has jointed to it at n a link n tubes G and which asses loosely down through a bracket whic extends from one of the lifter-rods e and isrigidly secured. thereto. The lower end portion of the link n is screw-threadedat n to engage a nut n and check-nut n arranged below the bracket 6* and adapted 'to be struck by said bracket in its descent the spring I outward until the collar Z strikes the frame A and transfers the belt from the fast pulley (i to the loose pulley d allowing the machine to stop instantly.

When it is desired to start the machine after doffing, placing empty bobbins on the adjusting the builder-motion by the usual means to the starting point, the screw M is turned to move the hook Z towards the belt-fork, causin the inclined under surface Z of the hook to ride over the correspondingly inclined upper surface Z of the hook Z until the point or free end of said hook Z strikes a stop projection Z and said hook 1 drops into engagement with the hook Z restoring the lever N and link 12, to normal position and the screw M is then turned in the op osite direction to draw the drivin belt D s owly from the loose pulley d to t e fast pulley d and starting the ma chine without shock.

I claim' as my invention 1. The combination in a twisting or s in-v ning machine of a drivin shaft, a fast pu ley and a loose pulley bot on said shaft, a

shipper-rod formed in two sections, each provided with a hook adapted to engage the of the shipper is thrown by hook of the other section, a lever, a bearin for one of said sections su ported on sai lever, a belt-fork carried l iy the other of said sections, a lifter-plate, means for giving the same a vertical traverse, a lifter-rod, movable with said lifter-plate, connecting means between said lifter late and said lever, adapted to rock said lever and to uncouple said sections by the descent of said lifter-rod, a spring to move the belt-fork carrying section of said shi per rod from the fast pul ey to the loose puliey and a drivingbelt guided by said fork.

2. The combination in a twisting or spinning machine of a driving-shaft, a driving belt, a fast pulley and a loose pulley both on said shaft, a ship er-rod formed in two sections, each firovlcfed with a hook adapted to engage the 00k of the other section, a lever, a bearing for one of said sections supported on said lever, a belt-fork carried by the other of said sections and guiding said belt, a lifter-plate, means for giving the same a vertical traverse, a lifter-rod movable with said-lifter plate, a bracket carried by said lifter-rod, a link jointed to said lever and passing loosely through said bracket, an adjustable stop carried by said link below said bracket and adapted to be struck by said bracket in the descent of said lifter-rod to a predetermined extent, to rock said lever and to uncouple said section, and a spring to move the belt-fork carrying section of said shi per from the fast pulley to the loose pu ey.

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

SAM DEAN. Witnesses:

ALBERT M. MOORE, GEORGE W. CUMINGs.

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