US2048994A

US2048994A - Spool or bobbin

Info

Publication number: US2048994A
Application number: US28186A
Authority: US
Inventors: Harry D Clinton
Original assignee: Individual
Current assignee: Individual
Priority date: 1935-06-24
Filing date: 1935-06-24
Publication date: 1936-07-28
Anticipated expiration: 1953-07-28

Description

H. D. CLINTON SPOOL OR BOBBIN July 28, 1936.

Filed June 24, 1935 Patented July 28, 1936 UNITED STATES PATENT SPOOL R BOBBlN Harry 1). Clinton, Johnson City, N. r Application June 24, 1935, Serial No. 28,186

Claims.

This invention relates to spools and bobbins, with reference more particularly to means of attaching heads to the ends of the barrels.

A primary purpose of the invention is to provide a spool or the like of improved construction, wherein the heads are positively and securely aflixed to the barrel, and yet can be detached readily for renewal or change if desired.

An important object is to provide a construction applicable especially to steaming bobbins or spools as used in the silk or rayon industry where repeated subjection to hot moisture is exceedingly destructive, but which is adaptable as well to warping, spinning, take-up and various other kinds and types of spools used for diflerent purposes in textile mills.

Another principal aim is to provide a construction easy of assembly and simple in embodiment, which will be strong and durable and can be produced at a sufiiciently low cost of manufacture.

Other objects, in addition to the general concept and advantages, of the invention, will be' rendered apparent and be best understood from the following description with reference to the attached drawing, illustrating one practicable embodiment thereof in a silk spool or bobbin.

In said drawing:

Figure 1 is a partly sectional and partly plan view of the spool in longitudinal or side elevation, with the parts at its lower end shown detached in their assembly relation;

Fig. 2 is an end view of the same as seen in complete assembly;

. Fig. 3 is a longitudinal perspective of the spool formed with gudgeon-receptive bearings at the ends; and

Fig. 4 is a like view of the spool formed with projecting gudgeons at the ends.

The illustrative spool includes a barrel 5 of the usual cylindrical form, comprising a hollow shell body having straight ends in this instance. Said barrel, for ordinary purposes, may be composed of wood, metal, pyrex, or other suitable material, as preferred; but, for the purpose of imperviability to steam, as herein proposed, it is composed desirably of wood rendered warp-proof from moisture, bakelite, or metal which is rust and stain proof, such as so-called stainless steel. In this connection, it will be understood that the spool represented is designed especially for applicability of use as a steaming bobbin in the treatment of silk and rayon, wherein the strand wound thereonto must be set in its twist by subjection to steam action which would be destructive of the ordinary spool.

Within the barrel is positioned an axial memher 6, which in this instance comprises a metal rod extending through the barrel as a core. This axial member may be either tubular, so as to provide open gudgeon bearings So at the ends of the spool, as shown in Fig. 3, or it may be solid, so as to provide projecting gudgeon pieces 6b at the ends of the spool, as shown in Fig. 4. Said member is advantageously composed of stainless steel to withstand the action of steam and eliminate the possibility of imparting any discoloration to the thread or yarn wound onto the spool; however, an ordinary steel might equally well serve the purpose, especially in a spool intended for ordinary use. The stated member, in the form shown, is threaded at its ends, as represented at 6c, preferably with a locking-thread for a reason which will be described presently.

To the ends of the barrel, heads 1 are applied over the ends of the axial member (6) just described, said heads being apertured centrally for the purpose with a sumcient clearance to admit another member, later described, therethrough. These heads are of fiat disc-like form and are composed preferably of stainless steel, to resist the action of steam, although bakelite or some other equally eiiective material may be used if preferred. In construction for ordinary use, however, they might compose a vulcanized fiber, pyrex, or other desired material. In the form shown, the heads have central depressed portions la countersunk into the bore of the barrel for snug and tighter fit thereon, and providing a receptive space for said another member to be ad mitted through their central aperture. A washer or gasket 8 is advantageously interposed between each head and the end of the barrel against which it bears.

to position and hold the aforesaid axial member in the center ofthe barrel, since the ends of said member extend centrally through the heads and are retained therebetween. It will be understood, of course, that in a spool or bobbin having only one head, the axial member might have some other means of positioning and retention within the headless end of the-barrel.

The head at each end of the barrel is attached The heads in this instance accordingly servefirmly thereagainst by a securing nut member 9,

. extending through the and threaded in this instance internally, as rep-.

central aperture therein resented at 9a, to engage with the threaded end of the axial member. The threading of this nut member cooperatively with the "lock-threading of said axial member, as before stated to be preferred, provides a lock union of these two parts, so that they cannot disengage or loosen after joinder by the screwing together, and yet may be disengaged by unscrewing at will moval of the head for renewal or change, and disassembly of the spool. Any kind of look-thread suitable to the purpose may be used and no particular form is claimed, a mere conventional thread of the character being represented in the drawing. Of course, an ordinary screw thread to allow reengagement between the parts may be used, if desired, although an actual locking together would not then be attained without some auxiliary feature such as a feather or key. Some other equivalent means of engaging the nut and axial members together in locking relation could be employed, the essential purpose being simply to insure against unintended separation after union, but a lock-thread engagement between them is the most effectual for all practical purposes. The threaded union, moreover, permits a tightening to bind the head securely against the barrel end, and the two heads at opposite ends are, of course, drawn together on the axial member, since the threading at opposite ends of the latter is reversed.

The outer portion of the aforesaid nut member, in this instance formed as a lateral flange, seats upon the outer face of the head and preferably within the depressed or countersunk portion (1a) thereof, fitting into the bore of the barrel, so as to lie fiush with the outer surface of said head. Keyholes 9b in its outer or flange portion advantageously provide for the application of a wrench or other tool to screw the same into place. In some instances it may be desirable to interpose a washer l0 between this securing nut member and the head of the spool, such washer being of fiber or felt, or a metal lock washer, as preferred. However, it is not ordinarily necessary to use such a washer and it may be omitted except where it may be desired to cushion or frictionally hold the nut member.

When it is desired to remove the heads for any reason, such as renewing when worn, or changing to alter the weight of the spool, the securing nut member is simply unscrewed and withdrawn from the axial member, whereupon the head can be easily drawn off. Another head isas readily applied by the reverse procedure.

A spool of improved construction is thus provided, which is applicable to all kinds and types of articles of the kind. It is especially applicable to steaming bobbins which are required to withstand the disintegrating action of hot moisture without any corrosion, warping, loosening or coming apart, particularly under the strain against the heads, tending to press them off. It produces a very strong and durable spool of simple composition and assembly, that in addition can not break easily and will indefinitely endure the rough general usage to which such articles are subjected in textile mills. Its novelty and advantages will then be readily appreciated.

As it is obvious that various changes may be made in the details of form and arrangement of parts, with equivalences in feature, to fulfill different requirements and purposes of the article, without departing from the aim and scope of the invention, the appended claims are not intended to limit the same to the specific construction illustrated and described.

Having thus set forth my invention, what I claim as new and desire to secure by Letters Patent of the United States, is:

1. A spool or bobbin comprising, a barrel, an axial core member positioned in the barrel, a head bearing against the end of the barrel and having an offset central countersink portion fitting thereinto, and a securing nut-member extending centrally through the head into threaded engagement with the core and seating in the offset countersink portion of the head flush with the remaining outer surface thereof; said securing member pressing the head tight against the barrel end and together with said core member being the sole means of locking the head to the barrel.

2. A spool or bobbin comprising, in combination, a hollow barrel, a core member axially positioned with a surrounding space within the barrel, a head bearing against the endof the barrel and having a central offset countersink portion fitting into the barrel end, and a securing nut member extending centrally through the head into tightenable engagement with the core member so as to press said head tightly in place and seating in the offset countersink portion of the head flush with the remaining outer surface of the same; said nut member and head together centering the core member in the barrel and said nut and core members together locking the head removably to the barrel.

3. In a spool or bobbin. the combination of a hollow wooden barrel, a metal core member axially positioned in the barrel and having a lockthreaded end, a flat head bearing against the end of the barrel and having a central ofiset countersink portion fitting into the barrel bore, a securing sleeve nut extending centrally through the head into cooperative engagement with the threaded end of the core member and having a flanged end seating fittably in the offset counter- 'ting into the barrel end, and a securing nut member extending through the head into threaded engagement with the core member and havi an overextending lateral flange portion seating in the offset countersink portion of the head flush with the remaining outer surface of the latter; said nut member having means for turnmg it in engagement with the core member so as to draw and press the head tight against the end of the barrel and together with said core member being the sole means of fastening the head to the barrel.

5. In a spool or bobbin, in combination with a barrel and heads applied against the ends of the same, a metal core. member extending axially through the barrel and having threaded ends, and securing nut members extending centrally through the heads into threaded engagement with the ends of said-core member; said nut members having lateral flange portions overengaging and seating in central countersunk portions of the heads flush with the remaining surfaces of the same and drawing said heads to hold them tight against the barrel ends when screwed into place on the core member, and the countersunk portions of the heads being formed by oi!- sets at one side fitting into the ends of the barrel hollowed to receive the same; said heads and nut members together centering the core memher in the barrel.

. HARRY D. CLINTON.