US1122812A

US1122812A - Automatic swift.

Info

Publication number: US1122812A
Application number: US57930310A
Authority: US
Inventors: William E Somerville
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-08-27
Filing date: 1910-08-27
Publication date: 1914-12-29
Anticipated expiration: 1931-12-29

Description

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UNITED STATES' PATENT onirica.

WILLIAM E. SOMEBVILLE, F COAL CITY, ILLINOIS.

AUTOMATIC SWIFT.

Application filed August 27. 1910.

To all whom it may concern:

Be it known that I, iVILLIMr E. SOMER- vnaa-z. a citizen of the United States resid- 4 ing at Coal City, in the county of rundy and State of Illinois, have invented new and useful improvements in Automatic Swifts,

of which the following is a fall, clear, concise, and exact description, reference being had to the accompanying drawing, forming a part of this specification.

My invention relates to improvements in automatic swifts or devices by means of which rolls or coils of wire are unwound,

`@anul has for its object the reduction of a L, device by the use of whiei the tangling. snarling, or breaking of the wire while in the process of being unwound is prevented.

A further object is the irodnction of a device that can be adjuste to t any size of coil of wire.`

A further object is the )reduction of a device that will automaticadly adjust itself to the constantly increasing internal diameter of the coil as the wire is unwound.

A further object is the production of a device that can be cheaply' manufactured, and consists of comparatively few parts, and is not liable to be broken or get out of order.

These, and other objects sach as may hereinafter a Jpear, are obtained by my device, an embo :ment of which is illustrated in the accompanying drawings, in which- Figure 1 represents a side elevation of my device in operative position; Fig. S2 represents a. top plan view of my device in operative position: Fig. 3 represents an enlarged sectional view, showing only the swift and base; Fig. 4 represents an enlarged sectional view similar to Fig. 3, with the arms extended; Fin'. 5 is a detail view ot the locking collar: Fig. 6 is a sectional view on the line 6 6 of Fig. looking in the direction of the arrows; and Fig. i is a top plan view of my device with the wire and base removed.

Like numerals of reference indicate like parts in the several figures of the drawings.

Referring now to the drawings, in Fig. 1 l have shown a supporting frame A, on which is mounted a swift B, carrying a coil or roll of wire C. The speed of the swift may be regulated by means of u suitable brake D. The frame A comprises a hase 8, an upright 9 bored to receive an Specicetion of Letters Patent.

Patented Dee. 29, 19.1.4.

Serial No. 579,303.

upright stationary shaft l0. Au arm 11 projects from tlu` upright ou which is the supporting arm l2 carrying the tension wheel li. A tubular shaft or sleeve llsurrounds the shaft l0. on the base of which above the upright Sl is keyed a brake wheel l5. Any suitable. braking means may be employed, for instance, a brake U5 operated through a i'oot lever l? hung on the support 1'2 and secured at 1S to the upright ll), the upper end oi' which is connected to the brake support .80 by means ol hooks 2l. Referring,r now to the swift proper, a circular base or support 2112, provided with a plurality of radially extending openings or slots l2-i. is bolted to the hase collar .24 lveyed on the sleeve. .\n upper collar Q5 is also keyed on the sleeve, and the central collar 2li is loosely mounted on thel .sleeve between the collars 2li aud .'\n ordinary split collar S27. provided with inwardly projecting lugs or pins QS, is mounted on the sleeve above the central collar. The sleeve is provided with opposately disposed openings or sockets Ql within which the lugs or pins ot' the collar tit, and by means ot' hich the distance of the upward movement of the central collar may be regulated. A plurality of upright supporting bars or arms 30. in this form, six in number, are arranged concentrieally about the central shaft, the lower ends passing through the openings Q3 in the base Qi! and connected to the. collars on the central sleeve by means of links 3l. 'lhe links are aivotally mounted at their inner ends to the collars L2-t, .25 und 2G and at their out/:r ends pivotally mounted on the castings 232 secured to the inner faces of the bars or arms Pit), the axes of' the links being horizontal so that tlu` links shall be tree to swing in vertical ra dial planes. livotally mounted on the lower end of one of the bars B0 is a dosr 3:5 and on the base .12 a corresponding rack or series of openingsl 2M is provided in position to engage the end of the dog and to limit the outward movement ol the arms 30 when the machine is not in operation.

In the operation of my device, the positions of the arms 30 are adjusted to the proper size by adjusting the collar 2T at the proper position on the sleeve and the middle yoke or collar slid up or down as required to accommodate the size ol the coil to be nnwound, it being simply necessary in placing the coil in position about the loo ltlfi llt) shaft to permit the lugs or pins to enter the proper sockets and clamp the collar in place. The dog 233 is then thrown out of engagement and the inner end of the Wire is carried over the4 tension wheel 13 and connected with a spool or bobbin on which it is to be rewound, and as the wire is wound on the bobbin, the swift revolves` the speed of the swift of course being regulated b v the speed of the bobbin. As the swift revolves and the inner layers of wire are uncoiled. centrifugal action forces the arms il() outwardly against the inner face of the coil and keeps the mat all times in such position. son of low speed the centrifugal force is not suilicicnt at times, the wire will slip downwardly slightly on the swift and the arms kept in engagement or pressing against the inner face of the coil.

Tn thc ordinary tapering swifts without movable arms the wire. will gradually slip down on the swift as far as it can et, and then unless the speed at which the obbins, on which the wire is being wound, is reduced. the wire in the coil will be apt to tangle and break. It has always been necessary heretofore to gradually reduce the speed as the coil is nearly unwound, but in my improved device the uniform high rate of speed can be maintained at all times owing to the fact that the centrifugal actions keeps the arms always in close contact with the inner face of the coil.

My improved swift is instantly adjustable. to accomniodate all sizes of coils of wire and can be run at a much higher rate of speed than is possible with any swift on the market, and in addition thereto, it is possible to place the wire under any desired degree of tension without danger of breaking or tangling the wire. By the use of my improved swift constant pressure is maintained on the inside of the coil with a gradual increase in diameter as the internal diana-.tor of the coil increases. It will be seen also that the feature of having the lower ends of the coil supporting uprights Il() work in radial slots Q3 in the base plates .2 is important in that this construction insures the maintenance of the spaced relation of the aforesaid bars 30; in other words, the slots in the base plate afford radial guides for the bars and thus prevent the strains of supporting the coil and unwinding the same forcing these bars out of position. lt will also be understood that my apparatus is intended especially for use in connection with wire of high carbon steel, which wire is very easily tangled. In operation the swift revolves at a very high speed which keeps the hank or coil on the swift in constant vibration, and between this vibration and the centrifugal action of the upright bars, the hunk or coil is so held ln the event that, by rea-` that the inner coils that are being unwou'nd have no opportunity to get tangled duif the unwinding. lt is important that tl wire shall be unwound under tension, which tension can be applied by the attendant by means of the manually operable brake; and it is desirable also that the direction of pull on the wire shall be downwardly over the hank or coil. as shown in dotted lines in Fig. l. the wire in this instance passing under the guide. roller lil instead ot' above it as shown in full lines. ln view ol. the high speed. if the wire were unwound from the outside of the bank or coil, the tension would cause the wire to be pulled deep into the coil and thus tangle and break the wire. lf wire of this kind is lo be unwound from the outside of the coil` the unwinding action would have. to be performed very slowly in order to prevent tangling` especially if it be unwound without the proper tension be ing maintained on the wire. w,

wWhile l have illustrated a meansl thi-ois,y the medium of which the. desired result may be obtained` it is to be understood that l do not limit myself to such specific construction. as other forms are possible without departing from the spirit ol' my invention. which is` broadly speaking, the. automatic regulation of the circumference ol` the swift inert any required conditions under which the swift is used.

l claim:

l. swift comprising a central vertical rotatable shaft. a series of upwardlycon lill) verging coil-su|n orting bars spaced around said shaft. a series of links connecting each of said bars to said shaft, these links having a free vertical swinging action, whereby said coil supporting bars shall be free to move 105 bodily outward by the. centrifugal action to compensate. for the gradual increase in the inner diameter of the coil, means for variably reta rding the rotation of said sl and means for radially guiding and lally supporting the, lower ends of said coilsupporting bars in their radial movement.

A swift. comprising a vertical station ary shaft, a sleeve-sha ft rotatively sn'pported thm-con` a series of upwardly coir lif" verging coil supporting bars spaced around said sleeve-slmft. a plurality ol' verticallyswinging links connecting each of said bars with said sleeve sha ft, whereby the rotation of the. sleeve. shaft will cause the coil supporting bars to bodily move radially outwardly by centrifugal action to compensate for the gradual increase in the inner dianr eter of the coil of wire supported on the bars. aml means for variably retarding the 125 rotation of said sleeve shaft to maintain the proper tension of the. wire as it comes from the coil.

B. swift comprising a vertical stationary shaft, a sleeve-shaft rotatively sup lll() 'ed thereon, a series of upwardly-converging oil-supporting bars spaced around said sleeve-shaft, a pluralitv of vertically swinginar links connecting each of said bars with said sleeve-shaft, whereby the rotation of the sleeve shaft will cause the coil supporting bars to bodily move radially outwardly b v centrifugal action to compensate for the gradual increase in the inner diameter of the coil of wire supported on the bars, an adjustable stop-collar on said sleeve shaft, a sliding collar below said stop collar, a series of links connecting said sliding collar to the coil-supporting bars, and means for manually retarding the rotation of said sleeve shaft to maintain the proper tension of the wire as it comes from the coil.

4. A swift comprising la central vertical rotatable shaft, a series of upwardly-converging' coil-supporting bars spaced around said shaft, a series of links connecting each "auf sind bars to said shaft, these links having lliree vertical swinging action, whereby said coil supporting' bars shall be free to move bodily outwardly by the centrifugal action to compensate for the gradual increase in the inner diameter of the coil, means for radially guiding and laterally supporting 'said coil supporting,r bars at their lower Copias of this patent my be obtained for ave cent: each, by addressing the Commissioner ai retenu.

Washington, D. C.