US3321899A

US3321899A - Spinning ring with multiple circumferential serrations and holder

Info

Publication number: US3321899A
Application number: US401095A
Authority: US
Inventors: Andrew J Wayson
Original assignee: Merriman Inc
Current assignee: Merriman Inc
Priority date: 1964-10-02
Filing date: 1964-10-02
Publication date: 1967-05-30
Anticipated expiration: 1984-05-30
Also published as: ES318414A1; DE1291665B; CH441071A

Description

May 30, 1967 A. J. WAYSON 3,321,399

SPINNING RING WITH MULTIPLE CIRCUMFERENTIAL SERRATIONS AND HOLDER Filed Oct. 2, 1964 2 Sheets-Sheet l Fig.3. a

y 30, 1967 A. J. WAYSON 3,321,899

SPINNING RING WITH MULTIPLE CIRCUMFERENTIAL SERRATIONS AND HOLDER 2 Sheets-Sheet 2 Filed Oct. 2, 1964 United States Patent 3,321,899 SPINNING RING WITH MULTIPLE CIRCUM- FEREN'IIAIL fiilRRA'IIONS AND I-IQLDER Andrew J. Wayson, Needham, Mass, assignor to Merrimau, line, a corporation of Massachusetts Filed Oct. 2, 1964, Ser. No. 401,095 8 Claims. (Cl. 57-120) This invention relates to spinning and twisting rings. For simplicity in description, only the term spinning ring will be used, but it will be understood that this term also encompasses twisting rings.

As is well known in the textile industry, porous metallic spinning rings made of powdered metal pressed to shape and sintered have come into extensive use within the past decade. Porous metal rings have the advantage of transmitting lubricating oil therethrough so the entire surface of the ring will continuously carry a thin film of oil, which is transferred to the traveler as it moves thereabout.

One of the problems present in the use of porous metal spinning rings is that of readily varying the quantity of oil flowing therethrough in a given period of time to meet different traveler load conditions. In solving this problem, a basic consideration is the provision of means for inducing the oil to enter the ring as rapidly as possible. According to practices up to the present, the oil has been presented to a smooth cylindrical surface of the ring. Lighter oils will enter such surface faster than heavier oils; but in either case, where the surface is necessarily of limited dimension vertically in relation to the overall height of the ring, the oil enters at a rate which is proportional to the surface area presented to the oil.

The present invention relates, therefore, to new and novel means for accelerating the rate of entry of oil into the porous metal spinning ring, while at the same time preserving uniformity of distribution so that all parts of the surface of the ring will carry continuously the necessary oil film to minimize traveler Wear.

The objects of the invention are carried out by constructing the ring in a manner which greatly increases the surface area of the ring to which oil is transmitted by the Wick either through direct contact with the wick or by-capillary action. Since a greater surface area is initially supplied with oil from the wick or other means, it follows that the oil will enter and be dispersed throughout the body of the ring more rapidly than is the case according to current practice.

These and other objects of the invention will be set forth in more detail hereinafter with the aid of the accompanying drawings in which:

FIG. 1 is a plan view of a vertical type spinning ring, its holder and oil reservoir;

FIG. 2 is an enlarged vertical section taken on the line 2-2 of FIG. 1;

FIG. 3 is an enlarged vertical section of a portion of the holder taken on the line 3-3 of FIG. 1;

FIG. 4 is an enlarged side elevation of the vertical type spinning ring shown in FIG. 1 showing the multiplicity of circumferential grooves which increase the surface area;

FIG. 5 is a still further enlarged fragmentary vertical section taken on the line 5-5 of FIG. 1;

FIG. 6 is a view to the same scale as FIG. 5 taken on the line 6-6 of FIG. 1;

FIG. 7 is another view similar to FIGS. 5 and 6 taken on the line 7-7 of FIG. 1; I

FIG. 8 shows a modification in which the wick is omitted, the oil being supplied directly to the small circumferential groove through a supply pipe in the holder;

FIG. 9 is an elevation of the interior of the ring and holder shown in FIG. 8 looking toward the left with the 3,321,890 Patented May 30, 1967 ring broken away to show the split holder and the location of the sealing material near the ends of the holder;

FIG. 10 is a section on the line 10-10 of FIG. 9 showing means for blocking off the space between the holder and teeth near the ends of the split holder; and

FIG. 11 is a further modification of FIG. 8 in which a separate sealing member is used to retain the oil.

Referring to FIG. 1, there is shown in plan view a spinning ring holder 2 of the split type which may be spread at 4 to permit the insertion or removal of a vertical type spinning ring 6. With the spinning ring in position within the holder, it may be clamped against further movement thereby by tightening the screw 8.

At one side of the holder may be a conventional oil reservoir 10 having the usual valve 12 at a filling opening 14- through which the reservoir may be supplied with the selected lubricant.

As can be seen in FIG. 2, the oil reservoir 10 has positioned therein upper and lower

oil holding felts

16 and 18, between which are positioned

wicks

20 and 22. The Wicks by capillary action carry oil from the: felts through a passage 24 to an oil groove 26, which is best seen in FIG. 3. The upper surface of the reservoir 10 is closed by a transparent cover 28 secured in fluid tight manner by conventional pins 30.

The holder 2 includes a circumferentially extending flange 32 which fits snugly within a corresponding circu mferential groove 34 around the exterior wall of ring 6. The oil groove 26, it will be noted, is not concentric with the flange 32 of the holder. Instead, it is cut slightly diagonally so that it is oblique to the axis of the hold er and its highest point is at 36 adjacent the passage 24 and its lowest point is located diametrically opposite at 338. The passage 26 runs continuously about the interior of the holder 2 from point 40 adjacent one side of the split 4 to the point 12 adjacent the other side of the split 4. The dimensions of oil groove 26 in the holder are such that the

wicks

20 and 22 when placed therein will substantially fill the groove and extend inwardly a trifle to come into proper engagement with the ring.

The spinning ring 6 is of novel configuration. It has extending thereabout the groove 34 dimensioned to receive in close fitting relationship the flange 32 of the holder. The vertical face 44 of the groove 34 is not cylindrical, as has been the case heretofore, but instead is formed into a plurality of narrow concentric grooves 46, as are most plainly shown in FIGS. 5, 6 and 7. The grooves 46 are in the nature of a substantial number of concentric teeth which, for coinvenience, may be cut at an angle of 60"; but it will be understood that the angle of the teeth is not critical. Furthermore, the teeth may be cut in the form of a screw thread of small pitch, which results in a succession of teeth which are substantially the same as those which are cut individually. The object of the inclusion of the teeth-like formations in the vertical wall of the grooves 34 in the spinning ring is to greatly increase the available surface area at this portion of the ring. Where the teeth are cut at an angle of 60, it is obvious that the circumferential surface area will be doubled over the vertical space covered by the teeth; and, if oil is applied to this increased surface area, it has been found that entry of oil into the body of the ring occurs more rapidly than is the case Where the oil receiving surface of the ring is cylindrical, as in the current practice.

When the ring 6 has been positioned in the holder, as shown in FIG. 1, the

wicks

20 and 22 will rest against the teeth 46 of the ring, commencing at position 40 and running for almost a full circle to position 42. Since the groove 26 travels diagonally from the uppermost teeth 46 (see FIG. 5) to the lowermost teeth 47 (see FIG. 7), it follows that all of the circumferential teeth will receive oil. That is, capillary action aided by gravity will carry the oil from the wicks and 22 about the entire circumference of all of the teeth regardless of the position on the circumference of the teeth at which the oil was initially received from the wicks.

The groove 26 could, if desired, be made wider to receive a larger single wick or more smaller wicks, but this in general is undesirable and unnecessary as conventional wicks will carry an adequate amount of oil from the reservoir to the ring to meet the increased absorptive capacity of the ring which is now present by virtue of the multiple

concentric teeth

46 and 47.

In some spinning frame installations, the oil may be supplied to the rings by a positive oil feed mechanism, in which case the oil may be pumped directly through passage 24 or a similar passage located elsewhere in the circumference of the holder 2 to the groove 26 (from which the

wicks

20 and 22 have been omitted), thus to supply the oil to the concentric teeth 4-6 and 47.

Leakage of oil at the split 4 in the holder is prevented by the inclusion of a stopper 48 of oil proof material which is placed between the ends of the holder at the split and which covers the groove 34 at this position from top to bottom.

The construction disclosed herein makes it easy to change rings when necessary, as the wicks can remain permanently in the holder. All that is necessary is to loosen screw 8, spread the holder and remove the ring. Then when the new ring has been inserted, the screw 8 is set up to clamp the holder on the ring. The wicks 2t and 22 remain constantly in the correct position. By having the wick groove 26 run diagonally with respect to the

concentric teeth

46 and 47 that are cut in the exterior of the ring, wicks of conventional dimensions and oil carrying capacity may be used; but, at the same time, all parts of the concentric teeth will receive adequate quantities of oil to meet the increased rate of absorption which the ring will now have according to the present invention.

A modified form of the construction is shown in FIGS. 8 to 10. In this arrangement, the oil is transmitted directly to the multiplicity of small circumferential grooves or teeth. As shown in FIG. 8, the vertical ring 6 has the teeth 50 cut therein at a somewhat greater depth than the outside face of the ring. The circumferential groove is cut to present a pair of

shoulders

52 and 54 against which rest the upper and

lower flanges

56 and 58 of the holder 66. A passage 62 through holder 60 receives oil from any suitable source and distributes it directly to the circumferential area 64 surrounding the teeth 50. Since the holder is split, as indicated at 66 in FIG. 9, it is necessary to block off passage 64 at positions close to the split ends of the holder 66. This is achieved through the use of suitable transversely extending strips or bands of sealing

material

68 and 70 which fill the space 64 completely at these sections. FIG. 10 illustrates the manner in which the sealing material 68 closes the circumferential area 64 at these positions. The distance between seals 68 and 79 is so short that it has no appreciable effect on the transmission of oil to the intervening part of the ring. In fact, it is considered desirable to seal the joint 66 between the ends of the split ring by other sealing material 72 to preclude the possibility of oil dripping from the otherwise exposed teeth 56) at this short area.

In FIG. 11 is shown another modification in which the oil groove is independently sealed and no reliance for sealing need be placed on the holder. In this case, the circumferential area 64 is initially closed by a band 74, which may be of metal, plastic, or other suitable material, that fits snugly against

shoulders

52 and 54. This band 74 is then suurounded by a band of sealing material 76, which might be metal, plastic, synthetic rubber, or any other material capable of making proper fitting engagement around the band 74. Holes are drilled through

bands

76 and 74 in alignment with hole 62 through holder 60. Thus when a ring is to be changed, the holder is released at the split section, spread apart, and the ring, with the.

bands thereon, removed as a unit. A new ring may then be inserted and in so doing the only problem is to align the holes 78 with the oil supply hole 62 in the holder. This may readily be accomplished by having exterior aligning marks on the holder and ring.

The foregoing examples of the invention show means whereby the oil may be carried to the fine circumferential grooves by wicks extending thcreabout or through the use of circumferentially extending channels to receive oil directly. In both cases, the greatly increased area provided by the grooves enables the available oil to enter the ring quickly and spread to all surfaces in a shorter time than heretofore.

It is intended to cover all changes and modifications of the examples of the invention herein chosen for purposes of the disclosure which do not constitute departures from the spirit and scope of the invention.

I claim:

1. A vertical type spinning ring made of porous metal, said ring having a relatively wide shallow groove extending thereabout, the vertical wall of said groove comprising a plurality of circumferentially extending closely spaced teeth with sloping side walls meeting to form a continuous circumferential apex, which teeth lie in planes which are substantially at right angles to the axis of said ring, the configuration of said teeth precluding the mounting of wicks therein.

2. A vertical type spinning ring made of porous metal, said ring having a relatively wide shallow groove extending thereabout, the vertical wall of said groove comprising a plurality of circumferentially extending closely spaced teeth with sloping side walls meeting to form a continuous circumferential apex, which teeth lie in planes which are substantially at right angles to the axis of said ring, and oil impervious means surrounding and engaging the apexes of said teeth to provide a plurality of side by side open passages about said ring into which oil may be directed for absorption by said sloping side walls.

3. A vertical type spinning ring made of porous metal, said ring having a relatively wide shallow groove extending thereabout, the vertical wall of said groove comprising a plurality of circumferentially extending closely spaced teeth which lie in planes which are substantially at right angles to the axis of said ring, and means for supplying oil directly to said teeth over only part of the areas of the faces of each tooth, the balance of the areas of the faces of each tooth receiving oil through capillary action which moves the oil along each tooth from the area at which the oil was directly supplied.

4. The combination of a spinning ring holder and spinning ring, said spinning ring having a relatively wide shallow groove thereabout, the vertical wall of said groove comprising a plurality of circumferentially extending closely spaced teeth so numerous and so small as to preclude the positioning of wicks in the spaces between said teeth, the apexes of said teeth lying within the cylindrical surface defining the outer periphery of said ring, said holder including a cylindrical element shaped to fit closely within said groove and engaging the apexes of said teeth to form a plurality of side by side open passages about said ring, means for introducing oil through said holder and element to the entire area comprising the walls of said teeth and the inner surface of said element between the lines of engagement with said apxes of said teeth.

5. The combination set forth in claim 4, said holder and element being split whereby the holder may be spread to permit insertion of said ring, and means for preventing escape of oil from the said passages at the position of said split.

6. The combination of a spinning ring holder and vertical type spinning ring made of porous metal, said spinning ring having a relatively wide shallow groove thereabout, the vertical wall of said groove comprising a plurality of circumferentially extending closely spaced teeth,

the apexes of said teeth lying within the cylindrical surface defining the outer periphery of said ring, said holder having a cylindrical flange shaped to fit closely within said groove, said holder and flange being split whereby it may be spread to permit insertion and removal of said ring, a continuous groove in the interior surface of said flange extending for most of the circumference of said flange, said groove being of less vertical dimension than the vertical dimension occupied by the teeth in the ring, the plane of said groove being oblique to the planes of the teeth, an oil reservoir associated with said holder, a wick extending from said reservoir to and lying in said groove and engaging the sides of said teeth over a part of the circumference of each tooth, and means for preventing escape of oil from the teeth at the position of said split.

7. The combination set forth in claim 6, in which the highest part of the groove in said holder is adjacent said reservoir.

8. A vertical type spinning ring made of porous metal, said ring having a relatively wide shallow groove extending thereabout, the vertical wall of said groove comprising a plurality of circumferentially extending closely spaced teeth which lie in planes which are substantially at right angles to the axis of said ring, said teeth being in the form of a thread of relatively large diameter and small pitch.

References Cited UNITED STATES PATENTS 2,074,654 3/1937 Lewis 57 120 2,169,709 8/1939 Powrie 57-120 2,452,323 10/1948 Platzer 57120 2,936,568 5/1960 Wayson et a1. 57- 120 2,964,899 12/1960 Waysonet al. 57120 3,008,286 11/1961 Wayson 57 120 3,043,085 7/1962 Wayson 57-120 3,045,417 7/1962 Wayson et a1. 57- 120 3,107,480 10/1963 Wayson 57120 3,112,603 12/1963 Atwood 57120 FRANK J. COHEN, Primary Examiner. A. J. SIDOTI, D. E. WATKINS, Assistant Examiners.

Claims

1. A VERTICAL TYPE SPINNING RING MADE OF POROUS METAL, SAID RING HAVING A RELATIVELY WIDE SHALLOW GROOVE EXTENDING THEREABOUT, THE VERTICAL WALL OF SAID GROOVE COMPRISING A PLURALITY OF CIRCUMFERENTIALLYEXTENDING CLOSELY SPACED TEETH WITH SLOPING SIDE WALLS MEETING TO FORM A CONTINOUS CIRCUMFERENTIAL APEX, WHICH TEETH LIE IN PLANES WHICH ARE SUBSTANTIALLY AT RIGHT ANGLES TO THE AXIS OF SAID RING, THE CONFIGURATION OF SAID TEETH PRECLUDING THE MOUNTING OF WICKS THEREIN.