US1741197A - Spindle clutch - Google Patents

Description

Patented Dec. 31, 1929 UNITED STATES GEORGE H. MAGRA'IH, OF \VHITINSVILLE, MASSACHUSETTS Application filed This invention relates to means for detachably connecting a bobbin to a spinning or twisting spindle, so that the bobbin may be centered and rotated therewith. More specifically, the invention relates to a type of spindle clutch in which a yielding friction drive is provided between the bobbin and the spindle, my present invention being in the nature of an improvement over the construction shown in my prior Patent No. 1,457,226.

It is the object of my invention to provide an improved type of spindle clutch, so do signed that it will be effective in operation. economical to manufacture, and of such con struction that ends of yarn wound thereon may be easily and quickly removed there from.

My invention further relates to arrange ments and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawings in which Fig. 1 is a partial side elevation of a spin dle embodying my improvements;

Fig. 2 is a partial sectional elevation thereof;

Fig. 3 is a side elevation of the clutch casing member;

Fig. 4 is a bottom view thereof, looking in the direction of the arrow 4: in Fig. 3;

Fig. 5 is a side elevation of the spring clutch fingers in extended form;

Fig. 6 is a sectional elevation, taken along the line 6-6 in Fig. 5; and

Fig. 7 is a. plan view of the clutch fingers, positioned in their final or operative relation.

Referring to the drawings, we have shoWn a portion of a spindle 10 having a driving 40 member or whorl 11 fixed thereon, and provided with a recess 12 in its upper face portion. A casing 13 is mounted on the spindle 10, preferably with a tight force fit, and is provided with a recess 14 in its inner or lower 45 face.

Wall portions 15 extend downward from the casing 13 into the recess 12 of the driving member 11. These wall portions are spaced apart to provide slots or openings 16 and are preferably reduced in thickness at their SPINDLE oLtI'roH Uhu October 7, 1927. Serial No. 224,725.

lower ends as indicated at 1?. The portions 17 may be bent outward at a slight angle to more firmly engage the surrounding structure if so desired.

Spring clutch fingers 20 are mounted within the slots or recesses 16, said fingers being preferably formed on a connecting portion or member 21. They may be conveniently blanked out in extended form as shown in F ig. 5, to be thereafter bent to the circular relation indicated in Fig. 7. Each clutch finger 2-0 has a lug or projection 22 extending upwardly therefrom for a purpose to be described. i

In assembling the parts, the annular con necting member 21 surrounds the lower end portions 17 of thewall sections 15, and said annular member is also seated snugly in the recess 12, all as clearly indicated in F ig. 2. The lugs 22 extend upward into the recess 14: of the casing and the clutch fingers are thus limited in their outward movement.

When a bobbin is forced downward on the spindle, the clutch fingers 20 are yieldingly engaged and forced inward, thus centering the bobbin and providing a friction drive therefor. The substantially straight fingers 20 provide smooth and continuous outer surfaces over which coils of yarn, accidentally wind about the spindle, may be readily removed.

The present construction is extremely simple to manufacture and is readily assembled, the several parts co-operating to thereafter retain all parts of the device in operative relation.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed otherwise than as set forth in the claims, but what I claim is 1. A spindle having a driving member and a spindle clutch comprising a recessed casing fixed and centered on said spindle and said driving member and having a plurality of spaced vertical slots in the cylindrical side wall thereof, said slots being closed at their upper ends and open at their lower ends, and a plurality of spring clutch fingers secured to said driving member at their lower ends and axially centered thereby and extending upward in said slots to directly engage a bobbin on said spindle, said fingers having their upper end portions engaging said cas- 5 ing within said casing recess to limit outward yielding movement of said fingers.

2. A spindle having a driving member and a spindle clutch comprising a recessed casing fixed and centered on said spindle and 10 said driving member and having a plurality of spaced vertical slots in the cylindrical side wall thereof, said slots being closed at their upper ends and open at their lower ends, and

a plurality of spring clutch fingers project- 15 ing upward from an annular member mounted on said driving member and axially centered thereby, said fingers extending upward in said slots and directly engaging the bobbin on said spindle and said fingers having so their upper end portions engaging said cas sing Within said casing recess to limit outward yielding movement of said fingers.

3. A spindle having a driving member with a recessed upper face, a recessed casing fixed on said spindle and having spaced wall portions extending downward into the recess of said driving member, a plurality of spring clutch fingers, and an annular member supporting said fingers and firmly 3o seated and centered in the recess of said driving member and closely surrounding and centering said wall portion ends, said clutch fingers presenting substantially unbroken and continuous outer surfaces directly engaging the bobbin on said spindle and having lugs projecting upward into the recess of said casing to limit outward yielding movement of said clutch fingers.

In testimony whereof I have hereunto af- 49 fixed my signature.

GEORGE H. MAGRATH.

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