US2583995A

US2583995A - Bobbin

Info

Publication number: US2583995A
Application number: US38385A
Authority: US
Inventors: Lester F Burlein
Original assignee: CLOVERLEAF FREELAND CORP
Current assignee: CLOVERLEAF FREELAND CORP; CLOVERLEAF-FREELAND Corp
Priority date: 1948-07-13
Filing date: 1948-07-13
Publication date: 1952-01-29
Anticipated expiration: 1969-01-29

Description

L.. F. BURLEIN Jan. 29, 1952 BOBBIN Filed July 413, 1948 .w n? mw N f I? i fw, @om y w, /N

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Patented Jan. 29, 1952 UNITED STATES PATENT OFFICE BOBBIN Lester F. Burlein, Honesdale, Pa., assigner to Cloverleaf-Freeland Corporation, Honesdale, Pa., a corporation of Pennsylvania Application July 13, 1948, Serial No. 38,385

14 Claims. l

The present invention relates to bobbins ano. spools such for instance as those used in the textile industry but the invention is not limited to any particular use as it is applicable to spools or bobbins of different sorts and kinds irrespective of the particular use to which they are to be put.

One of the features of the invention is the provision of novel means for securing heads to bobbins and therefore the primary object of the invention is the provision of a novel arrangement or method for quickly, easily and satisfactorily removably securing heads to bobbins or spools.

Y A further object of the invention is the provision of a bobbin or spool construction to simplify and accordingly reduce the cost of fabrication and the ultimate sales price of bobbins or spools which object is in part accomplished by making the bobbin or spool parts such that they can for the most part be produced on punch presses.

Another and further object of the invention is the provision of a spool or bobbin the correct assembly of which is extremely simple and can be accomplished with a minimum of labor.

Another and still further object of the` invention is the production of a bobbin or spool constructed in a manner whereby any part thereof can be quickly and easily removed and replaced thus giving to the bobbins or spools high salvage value in that they can be maintained in use through replacement of worn or damaged parts.

A still further object of the invention is the provision of bobbins or spools having extreme flexibility in that the principle of attaching the heads of the bobbins is applicable to any type of bobbin regardless of the particular application or use to which the bobbin or spool is to be put or the speed at which it is to be rotated which latter attribute is present due to the fact that the bobbins or spools are dynamically balanced units. Y

Other objects, advantages, and novel features of construction will appear from thefollowing description when read in the light of the accompanying drawings and will be apparent to those skilled in and familiar with the art.

In the drawings:

Fig. 1 is an end View of a bobbin embodying the present invention.

Fig. 2 is alongitudinal sectional view of the bobbin of Fig. 1. F

Fig. 3 is a horizontal sectional view on the line 3 3 of Fig. 2 looking in the direction indicated bvyarrows,

Fig. 4 is a View in side elevation of a modilled form of the invention, a portion of the View being broken away and shown in longitudinal section.

Fig, 5 is a further modied form of `the invention as it might be applied to take-ups, the bobbin being illustrated in side elevation and a portion of the view broken away and shown in longitudinal section.

Describing the form of the invention illustrated in Figs. 1 to 3, the bobbin barrel A is a hollow round open-ended tube-like member provided internally adjacent, but short of, each of its ends with a circumferential groove I in which is removably mounted but retained under resilient tension a metallic retaining ring B. The barrel may be made of metal or any other suitable material and although the retaining ring is preferably made of metal it could be composed of any suitable resilient material having adequate rigidity.

The retaining ring falls just short of being a complete circle and has a cross sectional configuration and thickness to coincide with the internal configuration and dimensions of the groove l. The ring has two free ends terminating in ears 2 and 3 each of which is provided with a hole or passageway 4. Opposite the ears at the point 5 the ring is of its greatest width. From this point in each direction toward its free ends the ring is of diminishing Width. The ring is dynamically balanced and its outer circumferential edge, when the ring is expanded. into the groove, describes a true circle which is unbroken except for the slight distance separating its ears. The holes 4 are for the reception of a suitable tool for contracting the ring so that `it can be removed from its groove. The resiliency of the ring is such that when it is allowed to expand into the groove it will remain there firmly against displacement and the width of the ring at all points throughout its circumference is greater than the depth of the groove with the result that the ring extends into the barrel to form circumferentially thereof an abutment or shoulder.

The bobbin heads C are of conventional construction and can be made of any desired and suitable material. Preferably, but not necessarily, the undersides of the heads are provided with a circumferential groove 6 which telescopically receive the ends l of the barrels as appears in Fig. 2. Each of the heads is provided with a plurality of countersunk holes for the reception of the heads of the screws 8 and is centrally provided with a passageway 9 which may carry a fitting or bushing I0.

A pairof retaining discs D of ring-like form having a diameter substantially the same as the interior diameter of the barrel are disposed within the barrel. One each of these discs is disposed at and in abutment with the inner face of a retaining ring B and is held by the retaining Vring against longitudinal movement in a direction outward from the barrel. Each of the discs is provided with interior threaded passageways which are disposed in registry with the screw passageways of the head and threadedly receive the threaded lower ends II of the screws.

teriorly the barrel at each end is provided with a bushing E which is preferably composed of Bakelite and at its outer end is provided with an outwardly extending circumferential shoulder or iiange I2 which overhangs and abuts Ythe inner periphery of the outer face of its respective retaining disc D. Each f the bushings telescopicallyreceives and retains an end of an inlterconnecting hollow tube I3. The tube I3 and bushing E together with the head openings 9 provide a passageway throughout the length of the bobbin barrel and through the heads thereof.

The method of assembly and disassembly of lthe parts making up the bobbin will be apparent yfrom the foregoing description and the referred to figures of the drawing. The heads can be readily and quickly applied to and removed from Ythe bobbin. When the screws are tightened down the retaining discs D are held in compression 'against the retaining rings and the bushings E A*have their flanges I2 clampedV between the re- -taining discs and the heads. The bushings thus being held 'against movement the interconnectving tube I3 displacement.

Obviously by lreason of the construction the assembly is rapid and simple and it will be equally obvious that any worn or damaged parts 'of the bobbin can-be quickly and readily replaced.

With the retaining Yring being in dynamic balance, as explained, the bobbin is in balance Iand therefore will operate properly and smoothly 'even at high speeds. Y

YThe Ycunstruction"illustrated and described, as 'well as .fthose later to be described, have the attributes which vgive -to the bobbin the objects land :advantages which have been previously recited. Y l

Should it be desirable for any reason the screws 43 could be replaced by rivets or other suitable like fastening elements.

The Y'bobbin in Fig. 4 illustrates a further :adaptation of the broad inventive concept in vthat fthe 'resilient retaining ring is used in combination witha retaining disc. Specifically there is a lbobbin barrel A of similar construction to that previously described and which carries in its grooves I the resilient retaining rings Bhere- 'tofore described. In this instance the retaining disc lis of ring-like form and its central passageway'is threaded to threadedly receive a bushingfG formed 'as an integral part of the bobbin head lH. vThe bushing G replaces the bushing Epreviously described. The previously described tube lI3 is telescopically received and retained by the'head bushings G at the opposite ends of the bobbin barrel. The vheads can carry the same 'before-referred to ttings 9.

In the construction described the threaded 'engagement vof the head bushings with the retaining discs replaces the individual screws 8 of the L4other form of 'the invention and thus reduces the numberbf parts. Asiin the other form isV consequently held against of the invention the retaining disc is in a compressive state in the assembled bobbin.

The construction appearing in Fig. 5 illustrates one which is suitable for application to takeups and differs only slightly from the rst described form of the invention and accordingly similar reference numerals are 'applied to similar 'parts with the result that there is the bobbin the inner faces of the bobbin heads C. The gudgeons are provided with a longitudinal bore I6 which is in registry with the central passageway I7 of'its respective and adjacent retaining disc. The vpassageways of the retaining discs are in alignment with the open ends of the tubes I4. f Assembly and disassembly of this construction is obvious and will be fully understood :from the description given in respect to the rst form of the invention and as in the rst form of the invention the retaining rings are dynamically balanced and the retaining discs are put in a compressive state by the head retaining screws 8.

Modications of the invention can be made without departing from the inventive concept and the invention is accordingly to be limited only within the scope of the Yllereinafter following and appended claims. Y

What I claim is:

1. In a bobbin, spool, or the like, an openended barrel, a resilient ring Within the barrel adjacent an end Vthereof and having resilient interlocking connection'with .the barrel, an element behind the ring and held against outward movement from the'barrel by the ring, a 'head on the barrel end, and means Vdetachably securing the head to the .element and clamping the head to the barrel. Y

2. In a bobbin, spool, or the like, an open-ended barrel provided internally adjacent an end with a circumferential groove, a resilient ring having resilient interlocking connection with the groove and detachable therefrom by contraction of the ring, an -element insertable into the barrel and positionedbehind the ring and held against outward movement from the barrel end by the ring, a barrel head-on the barrel end, and means detachably interconnecting the head andthe element and clamping the head on 'the barrel end.

3. A construction as dened'in claim 2 wherein, the'ring has a pair of free ends each of which is provided Vwith meansfor the reception of an instrument by which the ring may be contracted by the application of`pressure.

4. A construction as dened in claim 2 wherein, the barrel is circular in cross sectional congurationand thering lwhen expanded into the groove describes a true circle.

5. A Vconstruction as defined in claim 2 wherein, the resilient ring Vis dynamically balanced.

6. In a bobbin, spool, or the like, an openended barrel provided internally adjacent 'each of its ends with a circumferential groove, a pair of resilient eXpansible and contractable rings each having a pair of free ends, one each of said rings having resilient interlocking detachable connection with one of said grooves, an element behind each ring and held thereby against outward movement from its respective barrel end, a headvon each barrel end, and means detachably securing each of said heads with the adjacent element and clamping the heads to the ends ci' the barrel.

7. A construction as defined in claim 6 wherein, said barrel heads are provided With centrally positioned aligned openings, a bushing associated and aligned with the inner end of each barrel head opening, each or said bushings being supported upon its adjacent element and having a head clamped between said element and the inner face of its associated barrel head, a hollow openended tube interconnecting the opposed ends of the bushings, said tube being supported and clamped between the said ends of said bushings.

8. In a bobbin, spool, or the like, an openended barrel, an element insertable into the barrel and positioned adjacent an end thereof, means releasably securing the element against outward movement through the barre1 end, said element provided with a threaded opening, a barrel head provided with a threaded stem, and the stem of the barrel having threaded engagement with the opening of the element for detachably clamping f the head on the barrel end.

9. In a bobbin, spool, or the like, an openended barrel provided internally adjacent an end with a circumferential groove, a resilient ring split intermediate its length and contractable and expansible, said ring in its expanded state having interlocking connection with the groove, an element insertable into the barrel and positioned behind the ring and held thereby against outward movement from the barrel end, said element being provided with a threaded opening, the barrel head provided with a threaded stem, and the stem of the barrel and the opening of the element having threaded engagement and acting to clamp the barrel head on the barrel end.

10. In a bobbin, spool, or the like, an openended barrel provided internally adjacent each of its ends with a circumferential groove, a pair of resilient rings each split intermediate its length to render the rings contractable and expansibie,

held thereby against outward movement from the barrel end, each of said elements being provided with a threaded opening, a pair of barrel heads each provided with a threaded stem, and the stems of the barrel heads and the openings of the elements having threaded engagement and acting to clamp a barrel head on each of the barrel ends.

11. A construction as dened in claim 10 wherein, each of the barrel heads is provided with a passageway extending through the head and its stem, and a hollow tubular element supported on and clamped between the opposed ends of the barrel head stems to provide a continuous passageway throughout the length of the bobbin.

12. In a bobbin, spool, or the like, an openended barrel provided internally adjacent an end with a circumferential groove, a resilient ring split intermediate its length to render it contract-able and expansible, said ring in its expanded state having detachable interlocking connection with the groove, an element insertable into the barrel and positioned behind the ring and held thereby against outward movement from the barrel end, a barrel head on the barrel end, means detachably interconnecting the head and the element and clamping the head on the barrel end, the barrel head provided with an opening, and a gudgeon in said head opening and provided with a head disposed and clamped between the element and the inner face of the barrel head.

13. In a bobbin, spool, or the like, an openended barrel provided internally adjacent each of its ends with a circumferential groove, a pair of resilient rings split intermediate their length to render them contractable and expansible, each of said rings having detachable interlocking connection with a groove, an element behind each ring and held thereby against outward movement from its respective barrel end, a head on each barrel end, means detachably interconnecting each of said heads with an element and clamping a head on each of the barrel ends, said barrel heads provided centrally with an aligned passageway, said elements provided centrally with aligned passageways in alignment with the head passageways, a gudgeon disposed in each head passageway and having a head disposed between an element and its adjacent barrel head and clamped between said members, a hollow tube supported by and clamped between the opposing faces of the elements, and the passgeways of said tube being in alignment with the aforesaid passageways of the elements and heads to provide a continuous passageway throughout the length of the bobbin and of the gudgeon.

14. In a bobbin. spool, or the like, :an openended barrel provided internally adjacent each cf its ends with an inwardly extending abutment, said abutments having quick detachable connection to the barrel, an element behind each ci said abutments and held against outward movement from the barrel by the abutments, a barrel head on each barrel end, means detachably securing each of said heads with the adjacent element and clamping the heads to the ends of the barrel, said heads being provided with central positioned aligned openings, a bushing associated and aligned with the inner end of each barrel head opening, each of said bushing being supported upon the adjacent element and having a head clamped between said element and the inner face of its associated barrel head, a hollow open-ended tube interconnecting the opposed ends of the bushings, and said tube being supported upon and clamped between the said opposed ends of said bushings.

LESTER F. BURLEIN.

REFERENCES CTED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 501,427 Kent July 11, 1893 701,934 Riddell June 10, 1902 946,757 Keeton Jan. 18, 1910 1,769,416 Clinton July 1, 1930 1,801,054 Mossberg Apr. 14, 1931 1,948,430 Robinson' Feb. 20, 1934 1,962,086 Bixby June 5, 1934