US776141A - Bobbin-clutch for rotatable spindles. - Google Patents

Description

PATENTED NOV. 29, 1904.

G. E. METOALP. BOBBIN CLUTCH FOR ROTATABLE SPINDLES.

APPLICATION FILED SEPT. 26. 1904.

N0 MODEL.

eta

STATES Iatented November 29, 1904. i

PATENT OFFICE.

CLARENCE E. METCALF, OF HOPEDALE, MASSACHUSETTITS, ASSIGNOR TO SAW YER SPINDLE COMPANY, A CORPORATION OF MAINE.

BOBBlN-CLUTCH FOR- ROTATABLE SPINDLES.

SPECIFICATION forming part of Letters Patent No. 776,141, dated November 29, 1904.

Application filed September 26,1904. Serial No. 225,910. (No model.)

To all who/n it 777/(LZ/ concern.-

Be it known thatLCLARENoE E. l\lE1.OALF, a citizen of the United States, and a resident of l-lopedale, county of Worcester, State of Massachusetts, have invented an Improvement in Bobbin-Clutches for Rotatable Spindles, of which the following-description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention has for its object the production of a simple, compact, and eflicientbobbin-clutch which operates by or through the action of centrifugal force to externally engage and firmly hold the bobbin in operative position upon the spindle.

Various centrifugally-acting bobbin-clutching devices have been constructed to engage internally and retain a bobbin in operative position upon a spinning or other rotatable spindle and in United States Patent No. 7 11.638 clutching means to engage the bobbin externally.

I have herein simplified the construction of a bobbin-clutch of the latter type, strengthened various parts thereof, and cheapened the cost thereof, and the various novel features of my invention will be fully described in the following specification,and particularly pointed out in the claims appended thereto.

Figurel is a side elevation and partial section on the line 1 1, Fig. 1, of a rotatable spindle having one embodiment of my invention applied thereto, a portion of a bobbin being shown in section in connection therewith. Fig. 2 is a much enlarged sectional detail on the line 1 1, Fig. 4, to more clearly illustrate the construction. Fig. 3 is an enlarged perspective view of one of the clutch members. Fig. t is a transverse section on the line 1 4, Fig. 1, looking down, the clutch members and the retaining member therefor being omitted; and Fig. 5 is a perspective view of the retaining member detached.

Referring to Fig. 1, the spindle A is shown as having an attached sleeve 41, provided with a whirl W, a construction common in sleevewhirl spinning-spindles and which is a convenient form to illustrate in connection with my present invention. Above the whirl the sleeve a has secured to it the hub (1. of an annular upturned or tubular carrier 1, having a relatively thick bottom 2, provided with a series of radial sockets 3, easily formed by drilling inward from the periphery of the carrier. The carrier-wall is reduced in thickness at its upper end, as at 1, and this reduced portion is provided with'apertures or notches 5 equal in number to the sockets 3 and vertically above them. Herein three sockets and notches are shown (see Fig. 4) symmetrically arranged at equal distances apart. The exterior of the carrier 1 has a series of elongated axial grooves 0r seats 6 formed therein and registering at their upper and lower ends with the notches 5 and sockets 3, respectively, as best shown in Figs. 1 and 2. Bobbin-clutching members are loosely mounted in the seats and, referring to Fig. 3, each clutching member is shown as comprising a flat elongated body 7, an enlarged and inturned head 8, and a flat nearly-circular foot 9.

The body of the clutching member loosely fits in the seat 6, while its head projects into the notch 5 at the upper end thereof, the flattened under edge 10 of thehead resting on the bottom of the notch, so that the clutching member is suspended outside of the carrier and is fulcrumcd on the bottom of the notch.

The foot 9 closes the mouth of the socket 3, within which is located a centrifugally-acting controller, shown as a metal ball 11, while the head 8 projects within the carrier.

The body of the clutching member is of less thickness than the depth of the seat 6, (see Fig. 2,) so that some rocking movement may take place, and when the foot of the clutching member is swung outward its head moves farther into the carrier. In order to retain said members in operative position, a retainer, shown as a tubular metallic shell 12, (see Fig. 5,) is forced. onto the exterior of the carrier with a driving iit,-the upper end of the retainer being bent to present an inturned annular flange 13, which overhangs the heads 8 and rests upon the reduced part 1 of the car rier. This is shown clearly in Fig. 2-and also on a smaller scale in Fig. 1, wherein the re tainer is shown in section at each side of the carrier.

Rotation of the spindle acts through the operation of centrifugal force to move the controllers ll outward against the feet 9 of the clutching members, rocking the latter and moving the heads 8 in toward the center of the spindle (see dotted lines, Fig. 2) into operative position, the depth of the seat 6 permitting such rocking or swinging of the clutching members. Now when a bobbin B is applied to the spindle A, its head slipping down over the sleeve a, as shown in Figs. 1 and 2, the enlarged bobbin-head Z) presses the clutching-heads 8 outward until it passes below them and rests on the bottom 2 of the carrier 1. Thereupon the heads 8 immediately return to operative position, engaging the exterior of and holding in position the bobbin-head and rotating the same with the spindle. The sleeve (4 serves to center the bobbin, and the latter is vertically sustained by the bottom 2 of the carrier, said bottom thus serving as a bobbin-rest.

Manifestly there is nothing exposed to catch loose ends of yarn. The structure is simple and compact, and it is thoroughly efficient.

I have shown a well-known form of bobbin in position in Fig. 1; but the particular form- A is shown and described herein.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination,with a rotatable spindle having an attached upturned, annular carrier, of a plurality of bobbin-clutching members mounted to rotate with and fulcrumed near their upper ends on said carrier, means operating by or through centrifugal force to move the upper ends of said members inward into position to engage and hold the exterior of a bobbin-head, and means to retain said mem bers on the carrier.

2. The combination with a rotatable spindle having an attached annular carrier, notched at its upper edge and provided with a plurali ty of external elongated seats symmetrically and axially arranged below the notches, of a plurality of bobbin-clutching members located in the seats and loosely fulcrumed in the'notches at or near their upper ends, means to retain the said members in their seats while permitting them to swing radially on their fulcra, and centrifugally-acting means to move inward the upper ends of the said members 100 epgage and hold the exterior of a bobbinieac 3. The combination,with arotatable spindle having an attached upturned, annular carrier, having a plurality of symmetrically-located notches in its upper edge, of a series of bobbin-clutching members having inturned heads extended through the notches and fulcrumed on the bottoms of the notches, means to retain the said members on the carrier while permitting them to rock radially, and centrifugallycontrolled means to act upon and move outward the lower ends of the clutching members and thereby move their heads inward into operative position.

4. A rotatable spindle, an apertured carrier connected therewith, a plurality of centrifugally-acting bobbin-clutching members fulcrumed on the carrier near their upper ends, each member having a bobbin-engaging head movable inward through the apertures in the carrier, and means to retain the clutching members in position thereon.

5. A rotatable spindle, an annular carrier connected therewith and apertured at its upper end, a plurality of centrifugally-acting bobbin-clutching mem bers each having an enlarged head extended through an aperture in the carrier and thereby pivotally suspended on the exterior of the same, and means to retain said members in position upon the carrier while permitting limited radial swinging movement.

6. A rotatable spindle, an annular carrier connected therewith and apertured at its upper end, longitudinal seats in the exterior of the carrier extending upward to each aperture, a plurality of centrifugally-acting bobbin-clutching members mounted in the seats, each member having an enlarged, inturned head extended through an aperture and fulcrumed on the bottom thereof, and a tubular retainer surrounding the carrier and fast thereon, to retain the clutching members in their seats.

7. A rotatable spindle, an annular carrier connected therewith and apertured at its upper end, a plurality of bobbin-clutching members each having an inturned head extended through an aperture into the interior of the carrier and pivotally suspended thereby on the outside of the carrier, radially-movable, centrifugally-acting devices mounted in the lower part of the carrier to act upon and move outward the lower ends of the clutching members, to thereby cause their heads to engage and hold the exterior of a bobbin-head, and means to retain said members in position on the carrier.

8. A rotatable spindle having an attached, upturned tubular carrier having a plurality of notches in its upper edge and external axiallyarranged seats communicating with each notch, and a radial socket in the carrier at the lower end of each seat, a plurality of bobbinclutching members mounted loosely in the seats and having enlarged inturned heads extended through and resting on the bottoms of the notches, centrifugally-controlled balls in the sockets, to engage and press outward the lower ends of said members, and a tubular shell surrounding the carrier and retaining the clutching members in position thereon.

9. The combination with av rotatable spindle, of a sleeve secured thereto and having an attached whirl and an annular, upturned carrier above the whirl, a plurality of centrifugally acting bobbin clutching members mounted on the exterior of the carrier, each of said members having an enlarged, inturned head extended within the carrier and by which the member is suspended, and means to retain said members in operative position on the carrier.

10. The combination, with a rotatable spindle having an attached annular carrier, of a plurality of axially and symmetrically arranged bobbin-clutching members pivotally mounted on said carrier, each member having at its upper end a head to engage and hold the exterior of a bobbin-head, and a series of bers mounted to rotate therewith, and movr able to engage the exterior of a bobbin and rotate the same with the spindle, and centrifugally-actmg controllers to unplngc upon and render the clutching members operative.

12. The combination, with a rotatable spindle, of a plurality of bobbin-clutching members mounted to rotate therewith and adapted to engage a bobbin and rotate the same with the spindle, and radially-movable centrifugally-acting controllers to impinge upon and render the clutching members operative.

In testimony whereof I. have signed my name to this specification in the presence of two subscribing witnesses.

CLARENCE E. METUALF.

Witnesses:

Gnonen O'rls DnArnn, Ennnsr W. Wool).

Images