US2368450A

US2368450A - Spool or bobbin

Info

Publication number: US2368450A
Application number: US544704A
Authority: US
Inventors: Earl G Crooks
Original assignee: LESTERSHIRE SPOOL AND Manufacturing COMP
Current assignee: LESTERSHIRE SPOOL AND MANUFACTURING Co; LESTERSHIRE SPOOL AND Manufacturing COMP
Priority date: 1944-07-13
Filing date: 1944-07-13
Publication date: 1945-01-30
Anticipated expiration: 1962-01-30

Description

Jan. 30, 1945. CROOKS 2,368,450

SPOOL 0R BOBBIN Filed July 13, 1944 Patented Jan. 30, 1945 UNITED STATES PATENT OFFICE Earl G. Crooks, Blnghnmton, N. Y., nllllnor to Lester-shire Spool and Manufacturing Company, Johnson City, N. Y., a corporation of New York Application July is, 1944, Serial No 544,704

(o1. z4z-us) 14 Claim.

This invention is a novel spool or bobbin made of welded seam steel tubing having internalwooden bushings at its ends provided with bores in which metal bushings are secured to form the spindle bearings, the tubing being formed or pressed around the walls of the wooden bushings, thus providing a spool or bobbin which will not wear out or deteriorate, the same being practically indestructible, and the spool or bobbin being balanced and running true at high speeds.

One object of my invention is to provide a spool or bobbin of the above type, having external raised bead ortions formed on the tubing and wooden bushings at one or both ends of the spool, so that the yarn thereon will not sluff off, the raised bead portions of the tubin securing the correspondingly shaped bead portions of the wooden bushings to maintain the bushings positioned within the tubing.

Another object of the invention is to provide a pool o-r bobbin of the above type having a diametrically disposed driving slot in one end, extending through the tubing and wooden bushing, the base of which slot is protected by bent tongues integral with the metal tubing and overlying the base of the slot to prevent the base of the slot in the wooden bushing from undue wear.

Other minor objects or the invention will be hereinafter set forth.

I will explain the invention with reference to the accompanying drawing, which illustrates several practical embodiments thereof to enable others familiar with the art to adopt and use the same; and will summarize in the claims the novel features of construction, and novel combinations of parts, for which protection is desired.

In said drawing- Fig. 1 is an elevational view of one embodi- I ment of my invention.

Fig. 2 is an enlarged longitudinal section on the line 2-2, Fig. 1, partly broken away.

Fig. 3 is an end view of the bobbin shownin Fig. 1, looking at the slotted end.

Fig. 4 is a longitudinal section showing a modification of the slotted end of the spool or bobbin.

Fig. 5 is a longitudinal section showing another modification of the slotted end of the spool or bobbin.

As shown in Figs. 1-3, the bobbin preferably comprises a length of welded seam steel tube l, in one end of which is tightly fitted a wooden to securely lock bushing 2 within the end of tube I so as to prevent axial movement therein, the raised portion la 01 the tube i also serving to prevent any yarn or the like from slufllng off the end of the spool or bobbin. Bushing 2 may be made of any desired wood, and has a tight fit within the adjacent end of tube I. In bore in of bushing 2 is a metal bushing 3 of any desired metal which forms one of the spindle bearings, and which preferably has its inner ends slightly flared outwardly, as at 3a, by rolling, so as to bite into the wall of bore 2a to prevent bushing 3 from shifting axially of bore 2a.

In the opposite end of tube i is a wooden bushing 4 similarln all respects to the bushing 2, same having a bore 4a of same size as the bore 201, and the wooden bushing 4 making a tight fit within the adjacent end of tube l. Bushing l also has an external annular raised head 40 similar to the bead 2c of bushing 2, the metal of tube i being formed or pressed over the raised bead 40, as at lb, *to lock bushing 4 in tube 9 and also to prevent the yarn from slufllng of! the adjacent end of the tube. Within the bore in of wooden bushing l is a metal bushing 5 forming the other spindle bearing of the spool or bobbin, the outer ends of the bushing 5 being outwardly flared as at 5a by rolling to bite into the wall of bore is of bushing 4 and prevent axial displacement of bushing 5.

Extending diametrically across the outer end of wooden bushing 4 and through the adjacent portions of tube i is a transverse slot 4d adapted to be engaged by a driving member in order to rotate the spool or bobbin. The base of slot 4d at each end is protected by inwardly bent tongues ic integral with the tube l as shown in Figs. 2 and 3 and overlying the base of slot 4d. The raised bead portion lb of tube i in way of the slot 40 is slitted as at id along lines parallel with the walls of the slot, and the tongues lc which protect the base of slot 4d are readily formed integrally with the tube i from the metal included between the parallel slits id as shown more particularly in Fig. 3.

In Fig. 4 a modification is shown in which the raised bead lb at the slotted end of the tube l is omitted. The bushing 4 in this modification is similar to that shown in Fig. 2 with the exception that an external annular groove 4:: is provided in the wooden bushing 4 at the inner end ofthe annular external bead portion 40,

, and the metal of tube l is formed or depressed,

as at le', into the annular groove 41:. Thus, the

I crown of the annular bead portion 40 in Fig. 4

lies within the diameter of the major portion of the tube. Except as above noted, the parts in Fig. 4 are otherwise identical with those above described in connection with Fig. 2, and said parts bear the same reference numerals.

In the modification shown in Fig. 5, the wooden bushing l at the slotted end or the spool or bobbin is identical with that above described in connection with Fig. 4, and the parts bear the same reference numerals. In this modification the end of tube l is pressed by rolling into the annular groove 42:, the rolled portion being indicated by the numeral if and the end of the bushing terminating within said groove 4:: so that the annular bead 4c of the bushing 4 beyond the an.- nular groove 4: is left uncovered by the metal of tube I. Otherwise, the construction of the parts in Fig. 6 are identical with those previously described in connection with the preceding figures.

My novel spool or bobbin is thus made of welded seam steel tubing, and is provided with wooden bushings at each end into which are secured metal bushings which form the spindle bearings; and by reason oi the construction the bobbin cannot readily wear out or deteriorate, the same being practically indestructible. The bobbins thus constructed are well balanced and run true at high speeds, and may be provided with raised beads at one or both ends so that the yarn thereon will not sluflf oil.

Moreover, the spools or bobbins may well be used to steam yarn without deteriorating the bobbin in the slightest, or without injury to the yarn, provided the tube was given a coating of Du- Lite" or some similar material to prevent rust or corrosion in event the tube I itself is not made of rustless or non-corrosive material.

I do not limit my invention to the exact forms shown in the drawing, for obviously changes may be made therein within the scope of the claims.

I claim:

1. A spool or bobbin, comprising a welded seam metallic tube; wooden bushings tightly fitted into the ends of the tube, said bushings having axial bores; annular external beads on said bushings, the ends of the tube having bulged portions conforming with and receiving the beads to maintain the bushings against movement axially oi the tube; and metallic bushings tightly fitted within the bores of the wooden bushings.

2. In a spool or bobbin as set forth in claim 1, said metallic bushings each having outwardly fiared ends biting into the wall of said bore.

3. A spool or bobbin, comprising a welded 'seam metallic tube; wooden bushings tightly fitted into the ends of the tube, said bushings having axial bores; annular external beads on said bushings, the ends of the tube having bulged portions conforming with and receiving the beads to maintain the bushings against movement axially of the tube; metallic bushings tightly fitted within the bores of the wooden bushings; and one end of said spool having a diametrically disposed slot extending through the wooden bushing, the wall of the tube in way of the slot being omitted.

4. In a spool or bobbin as set forth in claim 3, said metallic bushings each having outwardly flared ends biting into the wall of said bore.

5. In a spool or bobbin as set forth in claim 3, the wall of the tube in way of the ends of the slot being slitted and inturned to overlie and protect the base of the slot.

6. A spool or bobbin, comprising a welded seam metallic tube; wooden bushings tightly fitted into the ends of the tube, said bushings having axial bores; annular external beads on said bushings, the tube at one end of the spool having asoasso a bulged portion conforming with and receiving the related bead to maintain the bushing against movement axially oi the tube; metallic bushings tightly fitted within the bores of the wooden bushings; the opposite end or said spool having a diametrically disposed slot extending through the wooden bushing, the wall 0! the tube in way oi the slot being omitted; said wooden bushing at the slotted end 0! the spool having an external annular groove disposed at the inner end of the annular bead; and the overlying wall of the tube being pressed inwardly and filling said groove.

'7. In a spool or bobbin as set forth in claim 6, said metallic bushings each having outwardly flared ends biting into the wall of said bore.

8. In a spool or bobbin as set forth in claim 8, the wall of the tube in way of the ends of the slot being slitted and inturned to overlie and protect the base of the slot.

9. A spool or bobbin, comprising a welded seam metallic tube; wooden bushings tightly fitted into the ends of the tube, said bushings having axial bores; annular external beads on said bushings, the tube at one end of the spool having a bulged portion conforming with and receiving the related bead to maintain the bushing against movement axially of the tube; metallic bushings tightly fitted within the bores of the wooden bushings; the opposite end of said spool having a diametrically disposed slot extending through the wooden bushing, the wall 01 the tube in way of the slot being omitted; said wooden bushing at the slotted end of the spool having an external annular groove disposed at the inner end of the annular head; the overlying wall of the tube being pressed inwardly to fill said groove; and the crest of the bead at the slotted end of the spool being of same radius as the main portion of the body of the tube.

10. In a spool or bobbin as set forth in claim 9, said metallic bushings each having outwardly flared ends biting into the wall of said bore.

11. In a spool or bobbin as set forth in claim 9, the wall of the tube in way of the ends of the slot being slitted and inturned to overlie and protect the base of the slot.

12. A spool or bobbin, comprising a welded seam metallic tube; wooden bushings tightly fitted into the ends of the tube. said bushings having axial bores; annular external beads on said bushings, the tube at one end of the spool having a bulged portion conforming with and receiving the related head to. maintain the bushing against movement axially of the tube; metallic bushings tightly fitted within the bores of the wooden bushings; the opposite end of said spool or bobbin having a diametrically disposed slot extending through the wooden bushing, the wall of the tube in way of the slot being omitted; said wooden bushing at the slotted end of the spool having an external annular groove disposed at the inner end of the annular bead; the overlying wall of the tube being pressed inwardly to fill said groove; and the tube terminating within said groove.

13. In a spool or bobbin as set forth in claim 12, said metallic bushings each having outwardly flared ends biting into the wall of said bore.

14. In a spool or bobbin as set forth in claim 12, the wall of the tube in way of the ends of the slot being slitted and inturned to overlie and protect the base of the slot.

EARL G. CROOKS.