US1672991A - Serving mechanism - Google Patents

Description

June 12, 1928.

J. N. SELVIG SERVING MECHANISM Filed Nov. 21, 1925 2 Sheets-Sheet inventor John/V Seluzy AfZZ June 12, 1928. 1,672,991

' J. N. SELVIG SERVING MECHANISM Filed Nov. 21.. 192:. 2 Sheets-Sheet 3 flwenior John flfjelpzg by w Atty

' Patented June 12, 1928.

-UNITED STATES PATENT OFFICE.

JOHN NILSEN SEIIVIG, OI CHICAGO, ILLINOIS, ASSIGNOR 'IO WESTERN ELECTRIC COM- PANY, INCORPORATED, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

SERVING MECHANISM.

Application filed November 21, 1923. Serial No. 678,207.

This invention relates to improvements in serving mechanism, and more particularly to means for preventing breakage of the serving material when the serving mechal nism is set in motion and stopped.

An object of the invention is to provide a serving mechanism which may be started and stopped without exerting a deleterious tension upon the serving material or'core lo'which might cause a breakage thereof dur-' ing such operations.

Another object,of the invention is to provide a serving mechanism, including a capstan and serving head, equipped 'with a weight of such character an so disposed that it prevents the suddenstarting and arresting of the capstan and serving, head, thus insuring against breakage of the serving materialor core at such times.

Anapparatus made in accordance with the invention rnay comprise a driven element, a servin head and capstan rotatable therewith, a driving mechanism, a clutch device for operatively connecting and disconnecting the driving mechanism to and from the driven element. and aweight carried b the serving head, the weight being of Sue character and so disposed with respect to the servinghead that it serves to retard the acceleration of the head and capstan when the driving mechanism is operatively associated therewith and to prevent an abrupt arrestment of the head and capstan when the driving mechanism is disconnected therefrom.

. Other objects and advantages of the invention will more fully appear from the following description and will be particularly pointed out in the appended claims.

In the accompanying drawings, Fig. 1 is a side elevation, partly in section, showing the serving head and capstan of a. mechanism made in accordance with the invention, and

Fig. 2 is a. continuation of Fig. 1, showing the operating mechanism for the serving head and capstan.

*The serving mechanism illustrated is especiallly adapted for serving copper tinsel .50 upon a cotton core, the resulting product being used in the manufacture of telephone cords. However, it is to be understood that the invention ma be applied to various other servi mec anisms without departing from the sp rit and scope thereof.

be rotatable therewith is a substantially cupshap'ed serving head 15 carrying a suitable guide 5, over which the tinsel is drawn from the tinsel spool 16 rotatable with a suitable arbor 17 rotatably mounted upon the spindle 11. Secured to the spindle 11 so .as to be rotatable therewith is a suitable guide or forming device 18.

Connected to the shaft 12 by suitable gearing, so as to be driven with the serving head 15 as a unit, is a capstan 19 which serves to draw the cotton core to be covered through the hollow spindle 11, the serving head 15, where it is wrapped with tinsel, thence through the former 18, and then to deliver it to the take-up spool (not shown).

Suitably secured to the outside of the vertical wall of the servinghead 15 is an annular weight 21. This weight is of uniform cross section and is attached to the tinsel head at a point substantiall equidistant the ends of the vertical wall t ereof so as not to unbalance the said head. This weight is of such size as to have the proper inertia and momentum and projects beyond the outer periphery of the tinsel head.

To set the serving mechanism in operation theclutch device .14 is o erated to connect 95 the shaft 12 with the drive shaft 13. The inertia of the weight 21 will cause a slippage of the clutch 14, with the result that the serving head 15 and capstan 19 which operate as a unit, will be started relatively slowly 109 so as not to exert any deleterious tension upon the cotton core, which might tend to cause a-breakage thereof, or exert a sudden pull upon the tinsel. which might break it or cause a surplus amount of said tinsel to be unwound from'its spool 16.

To stop the serving mechanism the clutch 14 is actuated to disconnect the spindle 11 from the drive shaft 13. In this operation the momentum of the weight 21 is sufficient 110 to cause the serving head 15 and capstan 19 to rotate even after the disconnection of the power means therefrom, with the result that neither the capstan or the serving head are arrested suddenly, which might cause a breakage of either the cotton core or tinsel serving, or perhaps both, To arrest the protracted motion of the head 15 and capstan, 19 after the clutch is disconnected, the operator may grasp the weight 21 to break the motion of the head, the surface and corners 2. In a serving mechanism, a spindle, a rotatable cup-shaped serving head and capstan.

associated with said spindle as a unit, an arbor rotatably mounted upon said spindle within the head, an annular wei ht of uniform cross-section carried by sai head and projecting from the outer periphery thereof approximately equidistant its ends, a driving mechanism, and a friction clutch for operatively connecting and disconnecting said driving mechanism to and from said spindle.

3. In a serving mechanism, a spindle, a rotatable cup-shaped serving head and capstan associated with said spindle as a unit,.

a device for receiving serving material mounted within said serving head and rotatable upon the spindle, an annular weight carried by said head and rotatable therewith approximately equidistant its ends, a driving mechanism, and a friction clutch for operatively connecting and disconnecting said mechanism to and from said spindle.

In witness whereof, I hereunto subscribe w my name this 9th day of November A. D.,

JOHN NILSEN sELvIo.

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