US310970A - Shuttle-operatiimg - Google Patents

Description

(No Model.)

l E. S. WINGHESTER.

SHUTTLE OPERATING MEGHANISM FOR LOOMS.

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EDVARD STEVENS /'INCHESTER, OF BOSTON, MASSACHUSETTS.

SHUTTLE-OPERATING MECHANISM FOR LOOMS.

iL/EIFIATON forming part of Letters Patent `1\o.310,3l70, dated January 20, 1885.

Application tiled September 10, 1833.

To all who/lt t ntf/,y concern:

Be it known that I, EDWARD S. Wineries- TER, ot' Boston, in the county of Suffolk and State of I'Iassachusetts, have invented certain Improvements in Shuttle-Operating Mechanism i'or Looms, of which the following is a specification.

The object of this invention is to provide a cheap and simple means whereby Ythe shuttle of a loom may be driven to and i'ro in a rapid manner.

To this end it consists,essentially, in a shuttle driver or picker combined with an electromagnet and armature for imparting motion thereto, and automatic devices for opening and closing an electric circuit in which the magnet is mounted, whereby the attraction of the armature by the magnet is caused to actnate the shuttle-driver.

I have represented in the drawings the arrangement which I have found in practice to be most desirable because ot' its extreme simplicity and reliability.

Referring to the drawings, Figure 1 represents a side elevation of the picker-st. tf and head and the magnetic attachment for imparting motion thereto. Fig. 2 is a diagram illustrating the manner in which two of my drivers are combined in one leoni.

Referring to the drawings, A represents a picker stati or lever mounted near one end on a pivot or journah, and provided at its short `end with an armature-G, which is arranged to vibrate in the eld ot' an electro-magnet, D, the coil of this magnet being embraced in an electric circuit, E, which will be connected with a dynamo-electric machine, a galvanic battery, a storage-battery, or other suitable apparatus, F, for generating or supplying electricity. The circuit E is divided or opened at a suitable point in its length, and the electrodes or terminals G and II are arranged to act respectively upon concentric conductingwheels I and J, which constitute circuit opening and closing devices, commonly denominated in the art circuit-controlling devices. The wheel I is of circular form, and remains constantly in contact with the terminal G; but the wheel J has a projection or enlargement upon one side, and is in contact with the terminal H only during the passage of the projection or enlargement thereunder. The re- (No model.)

driven from any suitable portion of the loom or by an independent motor, as desired.

I have represented in the drawings as one arrangement for driving the circuit-breaking wheel the pinion a, applied 'to the shaft by which the circuit opening and closing wheels are carried, and driven by a pinion, b, applied to one ot the usual rotary shafts ot' the loom. Vhen the magnet is excited, the armature C is attracted thereto, the picker-staff A being thereby operated quickly and strongly andats upper end driven forwardwith great rapidity. To the upper end I propose to apply a picker or other suitable device, II, which may be ot' ordinary form,1"or acting upon and impelling the shuttle, these features constituting no part of the invention.

In the drawings, the picker K consists of a reciprocating block having a hole or cavity formed in one end to receive the shuttle,which will tit freely. but closely therein. The air confined in the hole or cavity will serve as a. cushion to arrest the motion of the shuttle as it advances from the oppositeside of the loom.

In applying myimprovement I provide two combinations ot' mechanisms, such as above described, and locate the same at opposite sides ofthe loom, placing the levers or piekersta'tl's in the position which they ordinarily occupy. The two pairs of circuit closing and opening wheels may be located, as shown in Fig. 2, on opposite ends of asingle shaft, or they may be otherwise arranged if preferred, the only requirementbeing that they shall be timed in such manner as to close the circuits of the respective magnets alternately,whereby the pickers are operatedalternately and caused to throw the shuttle to and fro through the shed in the ordinary manner.V A spring may be applied, as shown at c, Fig. 1, to return the picker-statt to its original or backward position after the attraction of the magnet has ceased, or the impact of the shuttle as it is thrown from the opposite side ot' the machine may be relied upon for this purpose.

\Vhile the details of the mechanism may be modiiied, provided only that the magnet is arranged to move the device which acts upon IOO the shuttle, the arrangement represented in the drawings is peculiarly advantageous in that the magnet operating with increased iorce as the armature approaches its poles serves to impart a peculiarly quick and forcible blow to the shuttle, the motion of the parts being accelerated as the shuttle-driver moves forward, so that although the shuttle is started easily and smoothly it is finally thrown with great swiftness.

My present invention is restricted to those matters and things which are hereinafter specifically claimed.

Having thus described my invention, what I claim isl. The combination of' the picker-staff pivoted near its lowerend and provided with an armature, the electro-magnet to attract said armature, the source of electric supply connected withthe magnet, the circuit opening and closing devices, and driving mechanism therefor, said members being constructed and organized for joint operation substantially as described and shown.

2. In a looin, the combination of the two picker-staifs located at opposite sides thereof, y the electro-magnets, the source of electric supl ply connected with said magnels, the circuitcontrolling devices, and operating mechanism for said devices, substantially such as described and shown.

3. In a loom, the combination of the two picker-staffs located at opposite sides, electro-magnets acting to drive the two pickers forward, devices, substantially such as dcscribed and shown, to effect the excitation of the two magnets alternately, and the two pickers K, each having the cavity or recess to receive the shuttle, whereby the pickers are caused to drive the shuttle to and fro and the impact of the shuttle applied to return the pickers to their outer position, substantially as described.

4. In a loom, the combination of the two =picker-stail's, each provided with an armature, the electro-1nagnets,the source or sources of electric supply connected with said magnets, the electrodes G- and H, the circuit-controlling wheels I and J, and the sha'l't upon which said wheels are mounted, said parts

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