US3321900A

US3321900A - Holder for use with vertical type spinning ring

Info

Publication number: US3321900A
Application number: US545745A
Authority: US
Inventors: Andrew J Wayson
Original assignee: Merriman Inc
Current assignee: Merriman Inc
Priority date: 1966-04-27
Filing date: 1966-04-27
Publication date: 1967-05-30
Anticipated expiration: 1984-05-30

Description

A. J. WAYSON May 30, 1967 HOLDER FOR USE WITH VERTICAL TYPE SPINNING RING Filed April 27, 1966 I 6y Maia *W United States Patent 3,321,900 HOLDER FOR USE WITH VERTICAL TYPE SPINNING RiNG Andrew J. Wayson, Needham, Mass., assignor to Merrirnan Inc, a corporation of Massachusetts Filed Apr. 27, 1966, Ser. No. 545,745 Claims. (Cl. 57-.-l20) This invention relates to the textile industry and is particularly concerned with spinning rings and spinning ring holders.

More specifically, the invention relates to a vertical type spinning ring made of porous metal and a holder of novel construction for supporting the ring. The holder construction not only facilitates the feeding of oil or other suitable lubricant to the spinning ring so that it may be readily absorbed and transmitted to the working surfaces of the ring which are engaged by the traveler as it moves thereabout during the spinning operation but also permits the holder to be die cast.

Porous spinning rings of the type herein disclosed are well known in the trade, having been extensively in use for over a decade. One of the problems that has always confronted the industry in the use of porous metal rings is the provision of eificient means for supplying oil thereto. Heretofore, wicks of various types have been generally utilized and still are to a large extent. Wicks, however, have certain undesirable features in connection with the installation of original and replacement rings in the holders. In recent years, efforts have been directed toward means for supplying oil in a manner which did not require the use of the wicks, and such constructions have now come into use to a significant extent.

In the wickless type construction, the vertical ring has a groove extending circumferentially about its exterior. This groove is adapted to receive a cooperating holder of the conventional split type which permits suflicient spreading of the holder to allow the ring to be dropped therewithin. After the ring has been clamped in position within the holder, the split ends are sealed to prevent oil leakage. Additionally, the line of engagement of the holder with the ring at the upper and lower edges of the ring groove may be sealed to prevent leakage of oil.

In the prior art Wickless constructions, various means of inducing the oil to spread about the entire circumference of the ring have been used. The source of supply of oil may be either in the form of an individual reservoir at each ring or a common source of oil for a group of rings. In the latter case, oil is fed by suitable piping to each of the rings. In either case, the oil is under some pressure to pass through an opening in the holder to reach the ring. It may be carried around the ring by means of a single subsidiary circumferential groove in the ring; or there have been other constructions in which the oil is carried about the rings by means of a plurality of circumferentially extending small grooves on the interior wall of the holder or the exterior wall of the ring. The best practice requires that the oil reach as large a vertical surface of the ring as possible so that the oil may then travel quickly and uniformly through the ring to the working surfaces.

From a cost standpoint, it is preferable that the oil distributing means be incorporated in the holder rather than in the ring because the holder, once installed on the spinning frame, does not have to be replaced since there is no active wear on the holder. The rings, however, do have to be replaced, and therefore it is preferable that the rings be made as economically as possible. The powdered metal rings are customarily formed in suitable dies before being sintered and then, after sintering, the groove or grooves in the outer wall may be readily machined therein and the top and bottom edges rounded to conventional configuration. Likewise the holders may be die cast but, where there are to be circumferential grooves about the interior wall of the holder, these grooves must be subsequently machined therein by a separate opera tion. Thus, heretofore, it has not been possible to make by the die casting method a holder complete with circumferential oil distributing grooves therein.

With the foregoing in mind, the present invention is directed to a construction in which a holder may be die cast and include therein means for suitable distribution of oil to the outer surface of the ring groove without further machining of the holder. This result is achieved through the use of vertical grooves extending about the interior wall of the holder which permits removal of the holder from the dies after the casting operation has been completed as is understood by those familiar with casting procedures. Such removal would not be possible if the holder contained the circumferential grooves of the prior art structures.

The invention will be more clearly understood as the description proceeds with the aid of the accompanying drawings in which:

FIG. 1 is an exploded view of a portion of a holder and a vertical type ring supported thereby;

FIG. 2 is a vertical section of the holder and ring in operative relationship;

FIG. 3 is a horizontal section of a portion. of the holder and ring positioned thereagainst taken on the line 3-3 of FIG. 1;

FIG. 4 is a modification of the holder and ring structure;

FIG. 5 is another modification of the holder and ring structure; and

FIG. 6 is similar to FIG. 4 except that the lower ends of the grooves are closed only partially by the holder structure.

Referring now to the drawings, 2 is a perspective view of a portion of a split type holder incorporating the invention which may be mounted in conventional manner on ring rail 4. The numeral 6 indicates a fragmentary portion of a vertical type spinning ring made of porous metal and having a shallow circumferential groove 7. Ring 6 may be supported by the holder 2 when the latter has been sprung apart sufficiently to permit such insertion.

The holder is of novel construction. The entire inner vertical surface of the holder except preferably a short plane surface 9 at the split ends consists of a plurality of vertically extending grooves 8 which may take the form of V-shaped teeth having vertical flat facing surfaces. Alternatively, the grooves may have any other configuration, such as, for example, semi-cylindrical vertical grooves. Also the grooves may be of any width or depth, but preferably there will be a relatively large number of grooves so that the apexes or lands 10 of the grooves 8 will provide many support points for the ring when the latter is clamped in position therein. The total of the spaces between the lands of the teeth greatly exceeds the land area engaging the ring.

The grooves 8, open at top and bottom, could extend for the entire vertical dimension of the holder as suggested by the small bracketed section marked M in FIG. 1. Preferably, however, the lower ends of the grooves are closed by a solid circumferential portion 12 which extends about the lower periphery of the holder 2. The interior surface 14 of portion 12 is preferably in vertical alignment with the apexes 10 of the grooves 8. The vertical dimension of the holder is such that the upper surface 16 and the lower surface 18 fit snugly within an upper surface 20 and a lower surface 22 of the groove 7 in ring 6. The outer upper wall 19 of the holder is preferably in alignment with the outer upper wall of the ring to prevent any interference with the traveler.

Thus when the ring 6 is mounted in the holder 2 the arrangement will be as shown in FIG. 2. The vertical wall 24 of the circumferential groove that extends about the exterior of ring 6 rests firmly against interior surface 14 of portion 12 and the apexes of the vertical grooves 8 in holder 2. In this manner when the split ends of the holder are drawn together in conventional manner the ring will be firmly held about its entire circumference by engagement with the

parts

10 and 14 of the holder.

At any convenient point in its circumference the holder has a hole 26 extending generally horizontally therethrough, which hole is in connection with an oil supply tube 28 which may lead either to a silo type reservoir 30 or to other piping connected to a common source of oil. The inner end of hole 26 opens into a vertical space between the walls 30 and 32 (see FIG. 3) of adjacent teeth at that location. The ring 6 additionally includes a secondary circumferential groove 34 into which oil from passage 26 may freely flow. The oil is carried by groove 34 quickly about the entire circumference of the ring. However, since the vertical extent of the groove 34 is small, it will be appreciated that the vertical grooves 8 provide the cooperating means that allows the oil to flow upwardly and downwardly to cover the entire vertical area of wall 24 except the small lower portion that rests against holder wall 14.

In this manner, Without the use of wicks and using only the inherent structure of the ring and holder, the oil is readily received and disposed against a vertical surface which constitutes a large part of the vertical dimension of ring 6. The distributed oil is easily absorbed by the ring and transmitted to the working surfaces which are indicated by the numerals 36.

As previously noted, it will be obvious that the ring 6 may be made by low cost procedures. The ring is die cast, sintered, and the top and bottom edges rounded by conventional practice. Then, by a single machining operation, the outer circumferential groove having the top and bottom surfaces 20 and 22 and wall 24 and the subsidiary groove 34 may be readily produced.

The holder 2 by virtue of the vertical grooves 8 may now be die cast in a single operation. The die for the holder 2 could be split at either of the levels A or B indicated in FIG. 1. After the casting operation is completed, the upper portion of the die may be withdrawn upwardly, after which the holder may be lifted from the lower portion. It will be understood that the passage 26 likewise may be simultaneously cast in the holder or drilled thereafter.

The configuration and vertical position of the circumferential ring groove 34 may be varied at will, the only requirement being that it be of such dimension and ata vertical location so as to permit the ready movement of oil from passage 26 about the ring circumference so that all of the holder grooves 8 may be supplied by the oil which, being under forced or gravity pressure, will rise to the full height of grooves 8.

To avoid entrapment of air in grooves 8 at the time of insertion of a new ring in the holder, it would probably be desirable to spread manually a layer of oil on the grooves 8. Since the grooves 8 are normally of small dimension, such spreading of oil thereon will fill the grooves 8 to such extent that any air initially trapped therein will be negligible and not affect the introduction of oil into ring 6 through surface 24. To facilitate initial oil transmission the rings prior to use may be impregnated with oil by the vacuum process.

While the ring 6 shown in the drawing is of conventional'vertical type, it will be understood that any other configuration of vertical ring, such as, for example, the so-called conical ring, may be utilized with equally satisfactory results with the holder disclosed herein. It will also be recognized that, while the grooves 8 are preferably vertical to facilitate removal of the upper portion of the die therefrom, the grooves could be made somewhat helical, the extent being controlled by the possibility of removal of the upper die by a simultaneous twisting and lifting movement. There would ordinarily be no advantage to such construction, but it is mentioned as being within the scope of this invention even though the grooves will be referred to in the claims as vertical grooves. That is to say, when the term vertical grooves is used in the claims, it contemplates any type of grooves permitting separation of the dies from the holder after casting in the direction of the vertical axis of the holder. By such arrangement, the holder may be die cast in a manner that does not require any further machining or modification of the interior vertical surface of the holder.

The holder 2 may be of powdered metal capable of absorbing oil, but preferably it will be of a non-absorbent type of metal or other suitable material, such as plastic for one example. If holder 2 is made of porous metal, then the exterior surfaces will be coated with a conventional sealing material to prevent oil leakage.

A modified form incorporating the same principles is shown in FIG. 4. The holder has its lower portion 40 extending inwardly a short distance beyond the apexes 10 of teeth 8. Portion 40 forms a flange which interlocks with a shallow groove 42 at the bottom of the main groove 7.

Holder 2 of the split type has sufiicient flexibility to permit the additional opening thereof to allow introduction of ring 6. The flange 40 and groove 42 cooperate to minimize escape of oil at the bottom surface 22 of groove 7.

A further modification is shown in FIG. 5. Here the ring groove 44 that cooperates with the holder is of small vertical dimension. It is adapted to receive the inwardly extending flange 46 so that the ring will be held securely in the holder against vertical displacement. The apexes 10 of grooves 8 in holder 2 engage directly against the outer wall 48 of the ring.

Escape of oil from the upper ends of grooves 8 is prevented by a sealing ring 50 of suitable material which may be placed in position after the ring has been mounted in the holder.

The upper side of groove 44 may be cut away circumferentially as at 52 to provide an oil passage to the grooves 8 acting in the same manner as groove 34 shown in FIGS. 1, 2 and 3.

FIG. 6 shows a construction similar to FIG. 4 except that the flange at the bottom of the holder is increased in diameter as at 54 thereby only partially closing the lower ends of grooves 8. The cooperating part 56 of the ring 6 which engages flange 54 provides the remainder of the closure for grooves 8. The sealing effect of the constructions in FIGS. 4 and 6 is about the same.

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 split type holder for a vertical type spinning ring of porous metal, said holder including as an integral part thereof means for distributing oil vertically over the cooperating outer wall of a ring when clamped in position within said holder, said holder being made of castable metal and said oil distributing means characterized by a plurality of vertical grooves located in the inner wall of said holder, the lands between said grooves acting to engage and hold said ring against rotation with respect to said holder when the holder is clamped thereabout, said holder having a passage therethrough for delivering oil to a localized part of said ring when clamped therein that communicates with said grooves.

2. A split type holder as set forth in claim 1, further characterized by the total circumferential extent of said lands being less than the total circumferential space between said lands.

3. A split type holder as set forth in claim 1, further characterized by the lower ends of said grooves being closed so that the lower portion of said holder that grips said ring will be in the form of a narrow continuous cylindrical band whose internal diameter is not greater than the interior diameter of said lands.

4. A split type holder as set forth in claim 1, further characterized by said grooves being in the form of adjacent V'shaped teeth.

5'. A split type holder as set forth in claim 1, further characterized in that the length of said vertical grooves in said holder is more than one-half the vertical dimension of said ring engaging part of said holder, said grooves being at least partially closed at their lower ends by a flange integral with the material between said grooves, said flange having a cylindrical inner surface for engaging a corresponding cooperating cylindrical surface on a spinning ring mounted in said holder.

References Cited UNITED STATES PATENTS 2,964,899 12/1960 Wayson et a1. 57120 3,008,286 11/1961 Wayson 57-120 3,045,417 7/1962 Wayson et al. 57120 3,107,480 10/1963 Wayson 57-120 FRANK J. COHEN, Primary Examiner.

Claims

1. A SPLIT TYPE HOLDER FOR A VERTICAL TYPE SPINNING RING OF POROUS METAL, SAID HOLDER INCLUDING AS AN INTEGRAL PART THEREOF MEANS FOR DISTRIBUTING OIL VERTICALLY OVER THE COOPERATING OUTER WALL OF A RING WHEN CLAMP IN POSITION WITHIN SAID HOLDER, SAID HOLDER BEING MADE OF CASTABLE METAL AND SAID OIL DISTRIBUTING MEANS CHARACTERIZED BY A PLURALITY OF VERTICAL GROOVES LOCATED IN THE INNER WALL OF SAID HOLDER, THE LANDS BETWEEN SAID GROVES ACTING TO ENGAGE AND HOLD SAID RING AGAINST ROTATION WITH RESPECT TO SAID HOLDER WHEN THE HOLDER IS CLAMPED THEREABOUT SAID HOLDER HAVING A PASSAGE THERETHROUGH FOR DELIVERING OIL TO A LOCALIZED PART OF SAID RING WHEN CLAMPED THERIN THAT COMMUNICATES WITH SAID GROOVES.