US799033A - Bobbin-clutching means for rotatable spindles. - Google Patents

Bobbin-clutching means for rotatable spindles. Download PDF

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US799033A
US799033A US25781805A US1905257818A US799033A US 799033 A US799033 A US 799033A US 25781805 A US25781805 A US 25781805A US 1905257818 A US1905257818 A US 1905257818A US 799033 A US799033 A US 799033A
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bobbin
members
spindle
clutching
clutch
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Expired - Lifetime
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US25781805A
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John V Cunniff
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SAWYER SPINDLE Co
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SAWYER SPINDLE Co
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Priority to US25781805A priority Critical patent/US799033A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/30Handled filamentary material
    • B65H2701/31Textiles threads or artificial strands of filaments

Description

PATENTED SEPT. l2, 1905.
J. V. CUNNIFF.
BOBBIN CLUTCHING MEANS FOR ROTATABLE SPINDLES.
AYPLICATION FILED APB..28, 1905.
UNITED PATENT OFFICE.
JOHN V. OUNNIFF, OF FALL RIVER, MASSACHUSETTS, ASSIGNOR TO SAIVYER SPINDLE COMPANY, OF PORTLAND, MAINE.
Specification of Letters Patent.
Patented Sept. 12, 1905.
Application filed April 28, 1905. Serial No. 257,818.
T0 @ZZ whom, it Hefty concern:
Be it known that I, JOHN V. OUNNIFF, a citi- Zen of the United States, and a resident ot' Fall River, county oil Bristol, State ot' Massachusetts, have invented an Improvement in Bobbin-Clutehing Means for Rotatable Spindles, of which the following description, in connection with the accompanying drawings, is a specification, like tigu res on the drawings representing like parts.
This invention has for its object the production of novel and simple bobbin-clutching means for rotatable spinning, twister, or similar spindles whereby an effective driving engagement is easily secured and maintained between clutching members connected with the spindle and the yarn-receiver or bobbin when applied thereto.
The various novel features of my invention will be fully described in the subjoined specitication and particularly pointed out in the following claims.
Figure l is a side elevation ot' a portion of a rotatable spindle with one embodiment of my invention applied thereto. Fig. 2 is a sectional view thereot` on the line 2 2, Fig. l, the lower portion or head of a bobbin being also shown in section clutched on the spindle; and Fig. 3 is a view similar to Fig. 1, but omitting the clutching members.
The spindle-blade l and whirl 2, secured to or integral with the lower end of a depending sleeve 3, attached at its upper end to the spindle, may be and are in general ot' a familiar construction. Herein. however, I have somewhat reduced the diameter of the upper portion of the sleeve and have formed thereon a `plurality of elongated longitudinal seats LL, (see Fig. 3,) intersected between their ends by an annular groove 5, a pocket 6 being' formed at the intersections. Preferably three of such seats are employed, arranged symmetrically around the sleeve. Upon each seat I mount a bobbin-clutching member, consisting of a metallic body T, bent to tit loosely in the pocket 6 and having slightly-tapered upper and lower extensions 8 and 9, convexed longitudinally near their ends and lying in different planes. By reference to Fig. 2 it will be seen that the two ends of each member thus project outward slightly; but in practice the lower end normally'projects farther than the upper one, when the spindle is running bare, the convexed parts constituting clutch portions.
A spring-ring 10 is snapped over the bodies 7 and into the groove to retain the clutch members in place on the sleeve, but permitting them to tilt slightly, the bent bodies 7 rocking at such time in the pockets 6. vVVhen a bobbin 11 is pushed onto the spindle, (see Fig. 2,) the lower end ot' its chambered head l2` passes over the upper ends of the clutch members, but engages the lower ends, pressing the latter inward, and thereby acting to Vforce outward the upper ends 8 into driving engagement with the walls ot' the chamber 13. Thus each clutch member engages the bobbin at two places, one above the other, and drives the bobbin in unison with the spindle, the double clutching action securely holding the bobbin. If the clutch members are et' stitll metal, they will tilt on their fulcra in radial planes, the ring l0 expanding slightly when necessary, but if the clutch members are rather resilient the tilting will be less, but the clutching action will be substantially the same. IVhen the bobbinis removed, the clutch members return to normal position.
In order to prevent yarn from getting under and clogging the clutch members, I have extended the lower ends of the seats 4 to form rather deep grooves 14 in the larger lower part of the sleeve, the lower ends 9 of the clutch members entering the grooves, the thread of yarn being shed away from the ends of the clutch members by the portion of the sleeve at each side ot` the groove.
My invention is not restricted to the precise construction and arrangement shown and described, as the same may be varied or moditied by those skilled in the art without departing from the spirit and scope ot' my invention.
Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-
l. The combination with a rotatable spindle, of a plurality ot' longitudinally-extended bobbin-clutching members carried by and rotatable in unison with the spindle, each member having an upper and a lower clutch portion, engagement of the lower clutch portions with a bobbin acting' to also bring the upper clutch portions into driving engagement with the bobbin, and means intermediate the ends of said members to permanently connect them with the spindle.
Q.. The combination with a rotatable spindle, of a plurality of longitudinally-extended bob- IOO bin-clutching members, each having an upper and a lower clutch portion, and means coperating with said members between their ends to connect them with the spindle and effect their bodily rotation therewith, said means preventing bodily movement of the members longitudinally ot' the spindle, engagement ot' the lower clutch portions with a bobbin when applied to the spindle acting to force outward the upper clutch portions into driving engagement with the bobbin.
3. A rotatable spindle, combined with a plurality of longitudinally extended bobbinclutching members mounted on and to rotate in unison with the spindle, fulcra on which said members are adapted to tilt in radial planes, means to connect said members and the spindle adjacent the fulcra of the Jformer, and means operative by or through engagement ofthe lower ends of said members with a bobbin to tilt said members and effectdriving engagement between their upper ends and the bobbin.
4:. The combination with a rotatable spindle having an attached depending sleeve provided with longitudinal seats and having a whirl at its lower end, a plurality of longitudinally-- extended bobbin clutching members fulorumed on said seats to tilt in radial planes, the lower ends of said members being slightly outturned, to engage the interior of a bobbin -and be forced inward thereby, whereby the clutch members are tilted and their upper ends forced outward into driving engagement with the bobbin.
5. The-combination wi th a rotatable spindle, of a plurality of longitudinally-extended bobbin-clutching mem bers carried by and rotatable in unison with the spindle, each member having an upper and a lower clutch portion, each lower portion normally projecting radially beyond the upper clutch portion of the same member, and an elastic connection between the clutching members and the spindle, whereby said members may tilt when their lower portions are pressed inward by engagement with a bobbin, to force the upper clutch portions outward into driving engagement with the bobbin.
In testimony whereot1 I have signed my name to thisspecilication in the presence of two subscribing witnesses.
JOHN V. CUNNIFF.
Witnesses:
SAMUEL W. ASHTON, FRANK AMBER.
US25781805A 1905-04-28 1905-04-28 Bobbin-clutching means for rotatable spindles. Expired - Lifetime US799033A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2528066A (en) * 1946-01-24 1950-10-31 Magrath George Bobbin clutch
US2624520A (en) * 1946-01-24 1953-01-06 Magrath George Bobbin clutch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2528066A (en) * 1946-01-24 1950-10-31 Magrath George Bobbin clutch
US2624520A (en) * 1946-01-24 1953-01-06 Magrath George Bobbin clutch

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