US2396297A - Thread-advancing reel - Google Patents

Description

March 12, 1946. w, sTANLEY 2,396,297

THREAD ADVANCING REEL 2 Sheets-Sheet 1 Filed July 29, 1943 INVENTOR. F ey/mo W. STANLEY Arron/E1 Mam}! 1946- R. w. STANLEY THREAD ADVANCING REEL Filed July 29, 1943 2 Sheets-Sheet 2 n MM mm J WW 0 M H w A TTOANEX Patented Mar. 12, 1946 THREAD-ADVANCING REEL Richard W. Stanley, Drcxel Hill, Pa., assignor to American Viscose Corporation. Wilmington, DeL, a corporation of Delaware Application July 29, 1943, Serial No. 486,543

4 Claims.

This invention relates to thread-advancing reels which may be used for the production of a yarn store which is continuously advanced axially of the periphery of the reel during which time it may be subjected to fluid treatment in the manner and for the purposes conventional in the art.

It is a particular object of this invention to provide an improved thread-advancing reel. It is a further object of this invention to devise a reel which is adaptable to either a cantilever or double-end supported structure. It is a further object of the invention to provide a reel of this type based upon a structural principle, which, when embodied in a reel 01' large axial length, results in substantially uniform efficiency in thread-advancing action throughout the length or the reel, and at the same time is adapted to operation at high speeds of rotation of the reel. Further objects and advantages of the invention will be apparent irom the drawings and description thereoi hereinafter.

In the drawings, illustrative of the invention- Figure 1 is a mid-section taken axially through one embodiment o! the reel of this invention;

Figure 2 is a section taken on line 11-11 of Figure 1;

Figure 3 is a section taken on line III-III of Figure 1;

Figure 4 is a side view partially in cross-section oi the cantilever form the reel 01' this invention;

Figure 5 is an end view of the cantilever form shown in Figure 4; and

Figure 6 is a cross-section taken on line VI-VI of Figure 4.

Referring first to Figures 1 to 3, the threadadvancing reel comprises two sets of interdigitating bars, the bars 2 or one set alternating with and being spaced from and between the bars 3 of the other set. One of the sets comprising bars 2 is formed by suitably slotting the periphery of a housing formed or the telescoping hollow cylindricalsmembers l and I secured together by the JOBS This set of bars 2 is rotatably mounted concentrically on a stationary shaft 1 by means of ball bearings I. The opposite ends of the shaft are provided with cap! 8 suitably secured thereto, as bythe screw threads shown, one being left hand and the other beinz richt hand to prevent unscrewing during rotation of the reel. The outwardly projecting portions of the caps 9 have a non-circular periphery and are adapted to be supported in suitable supports or hangers i0 having sockets of co cross-section to pre vent rotation. Packings ll may be provided to prevent access of liquids to the bearings 01' the concentric cage or housing.

The other set of bars 3 are divided into several groups (three being shown) those of each group being formed integrally as radial projections from a casting occupying roughly a segment of a circle. Since these three units are identical, only one is described. The segment has a transverse web I! extending in a plane substantially at right angles to the axis of the reel. The web has an opening l3 which is sufficiently large to allow plenty of clearance about the transverse bolts 8 which secure the housing or cage carrying the concentric bars 2. As shown in Figure 3, the web I2 is provided with a pair or bosses H extending axially to both sides of the web. The bosses II have bores within which pins l5 are secured by nuts it. The enlarged ends I! at the left of the pins l5 have shoulders bearing against a yoke l8 extending between the pair of bosses. The ends I! are slidably mounted in bores through the spider l9 and the other ends of pins l5 are slidably mounted in similar bores of spider 20. A spring 2| within a recess in spider 20 midway between the bores pin-receiving therein normally presses the entire segment assembly to the left. A roller 22 secured to the yoke I8 bears constantbr against the annular cam surface 23 of the fixed cam 2.. The spiders l9 and ii are clamped in their appropriate positions upon the sleeve 25 by nut 28, spacer sleeve 21 being inserted between the spiders. The sleeve 25 is carried by bushings 2B and 2B, which in turn are carried by the centrally located eccentric portion 30 or the stationary shaft. A band 35 of member I beyond the bars 3 and having reduced diameter may serve as a surplus thread-collecting ring.

Flexible sealing membranes 3! and 32 may be secured to the segments, the central sleeve assembly, and the concentric cage members (as shown) where it is desired to use the reel for fluid treatment or yarns and the like, and to prevent the entrance oi the fluid into the working parts of the reel.

In operation. the reel is supported in suitable supports id for maintaining the central shaft 1 stationary, and the concentric cage or bars 2 is driven by means or a gear 33 which meshes with gear teeth 3i formed or secured to one end of the concentric cage. The rotation of the concentric cage comprising bars 2 causes the rotation of the segment assemblies of bars I about the eccentric shaft 30. As a result or the fact that bars 8 rotate about an axis which is ollset from the axis of the bars 2, the thread-carrying surfaces of bars 3 alternately project outwardly and recede inwardly from the periphery formed by bars 2. At the same time, rotation of the segments carrying bars 3 with respect to the earn 2 causes axial motion thereof with respect to the bars 2. The arrangement of the eccentric portion 30 of the shaft and the cam surface 23 is so selected that shortl after bars 3 are caused to project outwardly from the periphery of the bars 2, the rise on the cam 24 shifts the bars 3 axially, which axial shift is maintained by a suitable dwell in the cam until after bars 3 have been caused to recede below the peri heral surface of bars 2, after which a drop in the cam surface 23 permits the spring II to return the segment to its original positions.

Referring to Figures 4, and 6, a cantilever form of reel is shown comprisin a concentric cage of bars 2 and the eccentrically mounted bars 43. Bars 42 are formed integral with an arouate disc 44 which is secured for rotation with shaft 45, a gear 48 bein keyed to the shaft for receiving and imparting rotatory motion thereto The shaft is mounted for rotation with a suitable framework comprising the members H and B. A sleeve 49 is secured to the frame member 48 by the nut 54 and in turn a cam 58 is keyed to the sleeve. thereby assuring the stationary position of cam 50. A housing comprising member 51 and flange 62 is mounted for rotation about the cam and encloses a spider having a plurality of axial bores if carrying plungers 55. The spider 53 rotates about the fixed sleeve 49, which has a cylindrical peripheral surface 56 which is eccentric to shaft 5. suitable bushings 51, 58, 59 and 80 being provided between the relatively rotating parts. Transversely of the central bore of the plunger 55, a pin Bl extends through slots 62 and is secured to the walls of the spider 53. To the outwardly projecting end oi the plunger 55 is secured a segmental member having a plurality 01' bars 43. A spring 53 bears against pin 62 and against the bottom of the bore in the plunger 55 tending to bias the plunger with the segment carrying bars 43 to the right as viewed in Figure 4. The plunger 55 at the end opposite to that carrying the segment is provided with a roller 85 which bears against the cam surface 65 of the cam Bil. A flexible sealing member 8'! may be provided between the central portion of the spider 44, the segment members carrying bars 43, and the housing 5i and 52.

Operation of the cantilever form of the device is similar to that of the form supported at both ends. Rotation of shaft 45 causes rotation of bars 42 which rotation is transmitted thereby to the segment members and the spider member 63. Rotation of the spider member 53 about the eccentric surface 58 causes the alternate projection of bars 43 above the peripheral surface of bars 42 and recession thereof below the peripheral surface of bars 42. Simultaneously the action of cam surface 66 causes the axial motion or bars 43 in alternate directions at the time of protrusion and recession of bars II with respect to the peripheral surface defined by bars 42.

Whereas the actuated bars I and l! of the invention have been shown assembled in groups upon a plurality of segmental members, it is to be understood, that each of the bars I or 43 r spectively may be mounted sep rately d m y be provided with a cam follower to eifect its individual actuation axially of bars 2 and it respectively by means of the fixed cam.

The construction oi the reel of this invention is fundamentally simple, provision for axial movement and the spring control thereof serving to provide a motion which is smooth, positive and definitely controlled. The eccentric mounting of the actuating bars provides for uniformly emcient thread-advancing action throughout the length of the reel regardless of its axial length.

The various parts of the reel may be made of any desired material. Where it is desired to subiect the filamentary material or yarns being handied to liquids which tend to be corrosive in nature, the various elements of the reel, especially the parts exposed to the liquid, may be made of such materials as Durez, Bakelite, stainless steel or the like.

Because of the fact that the bar members of the actuated cage (that is. the non-concentric case) are mounted upon an eccentric surface, the axial length of the reel may be made as great as desired, without detrimentally influencing the thread-advancing efiiciency along the surface of the reel.

While it has been stated above that the 'projecting members 5 of the reel of Figures 1 to 3 are generally supported in fixed positions by suitable bearings, a variation in the frequency of the advancing action of the actuating bars 3 may be obtained by rotating the central shaft having the concentric portions 1 and the eccentric portion 3| about the axis of portions 1 in either direction with respect to the direction of rotation of the concentric cage carrying bars 2. By rotating this central shaft in the same direction, the frequency is decreased, while rotation of this central shaft in th opposite sense increases the frequency.

While specific embodiments of the invention have been described and illustrated, it is to be understood that changes and variations may be made without departing from the spirit and scope of the invention as defined by the appended claims.

I claim:

1. Reel mechanism comprising a set of spaced, longitudinally extending bar members rotatably mounted as a unit, a second set of spaced, longitudinally extending bar members alternating with those of the first set, supporting means for the second set rotatably mounted on an axis eccentric to the axis of rotation of the first set, the bar members of the second set being axially slidabie with respect to the supporting means therefor, means for imparting relative rotation between the bar members and the eccentric axis, an annular cam secured in fixed relationship to the eccentric axls. cam follower rollers on the bar members of the second set and resilient means cooperating with the bar members of the second set to control the axial motion thereof in co-operation with the cam.

2. Reel mechanism comprising a set of spaced. longitudinally extending bar members rotatably mounted as a unit, a second set of spaced, longitudinally extending bar members alternating with those of the first set, a stationary member having an external peripheral surface eccentric to the axis of rotation of the first set. supporting means for the second set of bar members rotatably mounted on the eccentric surface. the bar members of the second set being axially slidable with respect to the supporting means therefor, means for rotating the sets of bar members, an annular cam secured in fixed relationship to the eccentric axis, cam follower rollers on the bar member: of

the second set and resilient means co-operatlng with the bar members of the second set to control the axial motion thereof in co-operation with the cam.

3. Reel comprising a frame, a shaft rotatabiy moimted m the frame, a stationary sleeve mounted about the shaft and having an eccentric external bearing surface, a stationary annular earn, a set of spaced, longitudinally extending bar members secured for rotation with the shaft, supporting means for a. second set of longitudinally extending bar members alternating with those of the first rotatably mounted on the eccentric bearing portion of the sleeve. said supporting means comprising axially slidahle members each carrying at one end thereof a roller follower and at the other end at least one of the her members of the second set and spring means ,for preming said axially slidable members in co-operative engagement with the cam.

4. A cantilever reel. supported at one end only thereof comprising a frame, a shaft rotatably mounted in the frame, a. stationary sleeve mounted about the shaft having an eccentric external bearing surface, a stationary annular cam, a set of spaced longitudinally extending bar members, said bar members being supported on a substantialiy closed web secured for rotation with the shaft to its outermost end, supporting means for a. second set oi spaced longitudinally extending bar members alternating with those of the first rotatably mounted on the eccentric bearing portion of the sleeve, said supporting means comprising axialy slidable members each carrying at one end thereof a part of the bar members of the second set and at the other end thereof a roller follower and spring means for pressing said axially slidable members into co-operative engage ment with the cam.

RICHARD W. STANLEY.

Certificate of Correction Patent No. 2,396,297

March 12, 1946.

RICHARD W. STANLEY It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as for "bores pin-receiving read pin-receiving 1) follows: Page 1, second column, line 26. ores; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 4th day of June, A. D. 1946.

LESLIE FRAZER,

First Assistant Commissioner of Patents.

the second set and resilient means co-operating with the bar members of the second set to control the axial motion thereof in co-operation with the cam.

3. Reel mechanism comprising a frame, a shaft rotatabiy moimted m the frame, a stationary sleeve moimted about the shaft and having an eccentric external bearing surface, a stationary annular earn, a set of spaced, longitudinally extending bar members secured for rotation with the shaft, supporting means for a. second set of spaced, longitudinally extending bar members alternating with those of the first rotatably mounted on the eccentric bearing portion of the sleeve. said supporting means comprising axially slidahle members each carrying at one end thereof a roller follower and at the other end at least one of the her members of the second set and spring means ,for preming said axially slidable members in co-operative engagement with the cam.

4. A cantilever reel. supported at one end only thereof comprising a frame, a shaft rotatably mounted in the frame, a stationary sleeve mounted about the shaft having an eccentric external bearing surface, a stationary annular cam, a set of spaced longitudinally extending bar members, said bar members being supported on a substantialiy closed web secured for rotation with the shaft to its outermost end, supporting means for a second set oi spaced longitudinally extending bar members alternating with those of the first rotatably mounted on the eccentric bearing portion of the sleeve, said supporting means comprising axialy slidable members each carrying at one end thereof a part of the bar members of the second set and at the other end thereof a roller follower and spring means for pressing said axially slidable members into co-operative engage ment with the cam.

RICHARD W. STANLEY.

Certificate of Correction Patent No. 2,396,297

March 12, 1946.

RICHARD W. STANLEY It is hereby certified that error appears in the printed specification of the abovc numbered patent requiring correction as for "bores pin-receiving read pin-receiving 1) follows: Page 1, second column, line 26. ores; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 4th day of June, A. D. 1946.

LESLIE FRAZER,

First Assistant Commissioner of Patents.

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