US2954183A - Skewer for winding machine - Google Patents
Skewer for winding machine Download PDFInfo
- Publication number
- US2954183A US2954183A US698183A US69818357A US2954183A US 2954183 A US2954183 A US 2954183A US 698183 A US698183 A US 698183A US 69818357 A US69818357 A US 69818357A US 2954183 A US2954183 A US 2954183A
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- US
- United States
- Prior art keywords
- fingers
- tip
- skewer
- bobbin
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
- B65H49/02—Methods or apparatus in which packages do not rotate
- B65H49/04—Package-supporting devices
- B65H49/06—Package-supporting devices for a single operative package
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Definitions
- the invention concerns a novel skewer f' readily adapted for use with bobbins of varying size.
- the primary object of the invention is to'provide 'a skewer, for use in a winder or spooler, which utihzes an economical, replaceable tip adapting the skewer to han-
- Another object is to form the skewer and its replace able tip so that the tip may be quickly and easily slid onto the skewer, snap-locked into place, and removed by hand when necessary without requiring special tools'or equipment.
- the invention also resides in the novel arrangement and resilient mounting of the bobbin holding fingers in the. skewer which prevents damage to the fingers, for example, if they are forced inwardly, as when the replaceable tip is removed while the fingers are extended to their bobbin holding positions, or forced outwardly as when an attempt is made to install a bobbin without first retracting the fingers.
- Figure 1 is a fragmentary elevation of a winder with a bobbin pocket partially broken away to show a skewer embodying the present invention.
- Fig. 2 is an exploded perspective view of the mounting head and replaceable tip of the skewer shown in Fig. l.
- the bobbin pocket 14 is provided with a floor 31 having a slot 32 within which the spindle 10 swings.
- the spindle is drawn downwardly by initial downward rotation of the crank 20, the lower end of'the bobbin B strikes the edges of the slot 32 andis lifted from the spindle to fall :freely to the right (Fig. 1) into a suitable receiving hopper.
- the spindle reaches its loading position, another bobbin may befitted thereon and rotation of the crank arm-20 completed so as to swing the new bobbin back into the running position.
- the skewer 10 includes a shaft 34 having a mounting head 35 which supports a replaceable tip or adaptor. 36having slots for passing a set of bobbin holding fingers 37 having a sufficient stroke as to be capable of operation with a Wide range of adaptor diameters.
- a shaft 34 having a mounting head 35 which supports a replaceable tip or adaptor.
- 36 having slots for passing a set of bobbin holding fingers 37 having a sufficient stroke as to be capable of operation with a Wide range of adaptor diameters.
- the tip or adaptor 36 is generally annular in configuration and is provided with a flared skirt portion 41 and a conically tapered end portion 42 so that a bobbin may be quickly and easily telescoped thereover and seated against the skirt portion 41.
- a plurality of peripherally spaced slots 44 are provided for permitting the'bobbi'n holding fingers 37 to move therethrough and engage a bobbin mounted on the tip 36.
- the sides of the tip 36 are flattened as at 43 to permit the tip to be drawn through the slot 32 in the floor of the bobbin pocket 14.
- the mounting head 35 is preferably cylindrical in outer configuration and is provided with a shoulder flange 46 adapted to seat thetip 36 when the latter is fitted
- Fig. 3 is a sectional view through the skewer shown in Fig. l with a bobbin being fitted thereon.
- Fig. 4 is similar to Fig. 3 and shows the bobbin locked on the skewer and the latter shifted to running position.
- Fig. 5 is a section through the bobbin taken generally along line 55 in Fig. 3 and showing the top of the skewer.
- Fig. 6 is a perspective view of the retracting member for the bobbin holding fingers utilized in the illustrated As covered in Peterson Patent 1,686,102, to swing the onto the head.
- the head is also divided by peripherally spaced, axially extending slots 47 which register with the slots formed in the tip.
- the slots 47 serve the dual function of providing a recess into which the fingers 37 may be retracted and of dividing the head 35 into a plurality of narrow sections 48.
- the resilience of these sections 48 is utilized to snap-lock the replaceable tip 36 onto the head 35. This is accomplished by providing the tip with an internal annular ridge 49 and the head with a detenting groove 4911. Therefore, when the tip 36 is fitted onto the head 35, the yielding of the head sections 48 will permit the tip to snap into a seated position.
- the tip and theshoulder flange 46 are provided with cooperating tongue and slot 51, 52, respectively. So that the tip 36 may be easily unsnapped from the head 35, the former preferably is prov vided with a recess 53 which permits insertion of a suitable prying tool.
- the fingers37 are pivoted at their lower ends within the slots 47 for swinging movement between their excontrol of a cam operated plunger 55. As shown, the
- the, pivoted bobbin holding fingers 37- are resiliently urged toward either their-retracted or extended positions in response to slid ing movement oftheplu'nger' 55.
- an internal slide 61' is provided, slidably mounted on a rod 63 and biased upwardly by a spring 62 which presses against the upper end of the plunger 55.
- the slide 61 is provided with peripherally spaced wings or abutments 64 adapted to extend radially into the slots 47 so as to underlie the fingers 37.
- the abutments have inwardly facing surfaces which engage the outer edges of the fingers to swing the fingers 37 inwardly under the resilient urging of the compressed spring 52 i
- the plunger'rod 63 . is fixed 'tothe plunger "55 and an actuating block tisis' provided at the outer" end thereof and disposed so as to engage the fingers 37 above their pivot points.
- Downward sliding movement of the plunger 55, under theiurging of the spring 56 causes the block 65 to resiliently urge the fingers 37 toward their extended, bobbin holding positions and into engage ment with the bobbin B fitted'on the tip.
- the spring 56 is stronger than the spring 62 so that the former is effective to overcome the force exerted by the latter, when the cam 58 permits the plunger to move downwardly. 7
- a bobbin supporting skewer for handling bobbins having bores of varying diameter comprising, in .combination, a hollow shaft having a mounting head at one end, a plurality of bobbin holding fingers carried on said head and movable between retractedand extended 7 Positions, a replaceable tip mounted on said head and V 4 having an outer diameter corresponding to the bore size of the bobbin to be handled, said tip and sa dhead ing respective mating portions, to ISSlTItE IIllY S IiaP-TOEK said tip on said head and prevent relative rotation, said tip and said head also being formed to provide an ntermediate recess when snaplocked together permitting insertion of a tool for readily separating the tip from the head, said tip having a plurality of opemngsahned with said fingers so that-thefingers may extendithrough said openings into engagement with a bobbin, fitted on .7
- -A bobbin supporting skewer forhandling bs igsiiis having boresot" varying diameter comprising, in combine tion, a hollow'shaft having amounting head withan outerdiameter slightly iess than the, page at the sizfes of bobbins to be handled, a pluralityof bobbin holding fingers carried on said head and movable between inwar'd positions, s'aidhead having 'a'plu'rality' of slotsjalined with said fingers so that the fingers may extend throiighsaid slots into engagement with a bobbin fitted on said'head, 'first spring :ineans for;urging'said fingers inwardly, a plunger-slidahly mounted within'said shaft, a camhaving a dwell portion and a reeess, second spring means'for biasing said plunger against said cam, and an element on Said P unger for engaging and urg ng I said fingers wardly when said plunger is
- the second spring means being stronger fi spring means so that the setting of the-earn determines toward which of said positions the fingers are resiliently urged.
- a bobbin supporting skewer for handling bobbins I having bores of varying diameter comprising, in combinationya hollowshaft having a mounting head at oneend, a plurality of bobbin holding fingers c'arriedon said head and movable between inward and outward positions, a
- replaceabletip mounted on said head and having a flared seating surface-for accommodating a ⁇ range of bore sizes of the bobbins to be handled, saidtip having a plurality of slots alined with said fingers so that the fingers mayexs tend through said slots into engagement with a bobbin fitted on said tip, a first resiliently biased plunger member for urging said fingers outwardly, a second resiliently biased plunger member for urging said fingers inwardly,
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- Storage Of Web-Like Or Filamentary Materials (AREA)
Description
Sept. 27, 1960 Filed Nov. 22, 1957 SKEWER FOR WINDING MACHINE I 2 She' ets -Sheet 1 rrn ' I IN V EN TOR. FRAWM m/ r L mmvsmp Sept. 27, 1960 v vF. L. TOWNSEND 2,954,133
' 's' EwER FOR WINDING MACHINE Filed Nov. 22. 1957 v 7 Y z Sheets-Sheet 2 INVEKNVTOR. FRANKLIN Z. TOWWSf/Vfl BY g 4 ,4;
Mar
ATTORNEYS 2,954,183 'SKEWER FOR WINDING MACHINE Franklin L. Townsend, Rockford, Ill., assignor to Barber This invention relates generally to' skewers forsup- 2 he States atent -1 porting yarn bobbins in a winder or'spoolerand is an improvement on the bobbin holding structuredisclosed in US. Patent No. 1,686,102, issued October 2, 1928: In
more particularity, the invention concerns a novel skewer f' readily adapted for use with bobbins of varying size.-
The primary object of the invention is to'provide 'a skewer, for use in a winder or spooler, which utihzes an economical, replaceable tip adapting the skewer to han- Another object is to form the skewer and its replace able tip so that the tip may be quickly and easily slid onto the skewer, snap-locked into place, and removed by hand when necessary without requiring special tools'or equipment.
The invention also resides in the novel arrangement and resilient mounting of the bobbin holding fingers in the. skewer which prevents damage to the fingers, for example, if they are forced inwardly, as when the replaceable tip is removed while the fingers are extended to their bobbin holding positions, or forced outwardly as when an attempt is made to install a bobbin without first retracting the fingers.
Other objects and advantages of the invention will become apparent from the following detailed description taken in connection with the accompanying drawings, in
which:
Figure 1 is a fragmentary elevation of a winder with a bobbin pocket partially broken away to show a skewer embodying the present invention.
Fig. 2 is an exploded perspective view of the mounting head and replaceable tip of the skewer shown in Fig. l.
7 2,954,183 Patented Sept. 27, 1960 ice spindle 10 between a loading position and a running position, shown in Fig. l, the spindle is pivoted on a counterweighted crank arm 20 fixed to a rotatable shaft 21, and is slidable between a pair of guide pins 22, 23. The shaft 21 is rotated by a pinion 25 driven by a slidable rack 26 carrying a cam follower 27. For engaging the cam follower a cam 28 is provided on a traveler 29. In operation, movement of the traveler to a position adjacent the pocket-14 causes the rack 26 to be cammed downwardly. This rotates the pinion 25, shaft 21, and crank arm 20 counterclockwise as shown in Fig. 1 and causes the spindle 10 to be drawn downwardly between the guide pins '22, 23. Continued rotation of the crank arm 20 swings the: spindle 10 into its loading (dot-dash) position.
For automatic removal of an empty bobbin the bobbin pocket 14 is provided with a floor 31 having a slot 32 within which the spindle 10 swings. When the spindle is drawn downwardly by initial downward rotation of the crank 20, the lower end of'the bobbin B strikes the edges of the slot 32 andis lifted from the spindle to fall :freely to the right (Fig. 1) into a suitable receiving hopper. When the spindle reaches its loading position, another bobbin may befitted thereon and rotation of the crank arm-20 completed so as to swing the new bobbin back into the running position. In accordance with the invention, the details of which are set forth in Figs. 2-'7, the skewer 10 includes a shaft 34 having a mounting head 35 which supports a replaceable tip or adaptor. 36having slots for passing a set of bobbin holding fingers 37 having a sufficient stroke as to be capable of operation with a Wide range of adaptor diameters. Thus numerous types and sizes of bobbins received from many different spinning mills can be handled by the skewer 10 by simply replacing the tip 36 with a similar tip of suitable size. i
Preferably, the tip or adaptor 36 is generally annular in configuration and is provided with a flared skirt portion 41 and a conically tapered end portion 42 so that a bobbin may be quickly and easily telescoped thereover and seated against the skirt portion 41. A plurality of peripherally spaced slots 44 are provided for permitting the'bobbi'n holding fingers 37 to move therethrough and engage a bobbin mounted on the tip 36. Also, the sides of the tip 36 are flattened as at 43 to permit the tip to be drawn through the slot 32 in the floor of the bobbin pocket 14. V a
The mounting head 35 is preferably cylindrical in outer configuration and is provided with a shoulder flange 46 adapted to seat thetip 36 when the latter is fitted Fig. 3 is a sectional view through the skewer shown in Fig. l with a bobbin being fitted thereon.
Fig. 4 is similar to Fig. 3 and shows the bobbin locked on the skewer and the latter shifted to running position.
Fig. 5 is a section through the bobbin taken generally along line 55 in Fig. 3 and showing the top of the skewer.
Fig. 6 is a perspective view of the retracting member for the bobbin holding fingers utilized in the illustrated As covered in Peterson Patent 1,686,102, to swing the onto the head. The head is also divided by peripherally spaced, axially extending slots 47 which register with the slots formed in the tip. The slots 47 serve the dual function of providing a recess into which the fingers 37 may be retracted and of dividing the head 35 into a plurality of narrow sections 48. In the present instance, the resilience of these sections 48 is utilized to snap-lock the replaceable tip 36 onto the head 35. This is accomplished by providing the tip with an internal annular ridge 49 and the head with a detenting groove 4911. Therefore, when the tip 36 is fitted onto the head 35, the yielding of the head sections 48 will permit the tip to snap into a seated position.
In order to prevent rotation of the tip 36 and to insure registration of the grooves 44,-47 when the tip is snap-locked in position, the tip and theshoulder flange 46 are provided with cooperating tongue and slot 51, 52, respectively. So that the tip 36 may be easily unsnapped from the head 35, the former preferably is prov vided with a recess 53 which permits insertion of a suitable prying tool. r
The fingers37 are pivoted at their lower ends within the slots 47 for swinging movement between their excontrol of a cam operated plunger 55. As shown, the
fixed to the lower end of the 'plunger, -The cani, fol,
lower 57 rides on a cam 58 carried rigidly, by the 'ar'rh 20 and having a cylindrical outer dwell portion and a recess 59 When the skewer It? is in itsrunningor Fig. 4 position, the cam follower 57"rests within therecess' 59 of the cam 58- and therefo'retheplungerSS occupies its lower position. However, when the skewer is swung to its loading position, shown in, Fig; 3, the cahrfol-I lower 57 rides upon thedwell portionof the. cam 58 and the plunger 55 is thus thrust upwardlyvwithin the shaft 34 against the urging of the spring 56.
As a feature of the invention, the, pivoted bobbin holding fingers 37- are resiliently urged toward either their-retracted or extended positions in response to slid ing movement oftheplu'nger' 55. For retracting the fingers, an internal slide 61' is provided, slidably mounted on a rod 63 and biased upwardly by a spring 62 which presses against the upper end of the plunger 55. The slide 61 is provided with peripherally spaced wings or abutments 64 adapted to extend radially into the slots 47 so as to underlie the fingers 37. The abutments have inwardly facing surfaces which engage the outer edges of the fingers to swing the fingers 37 inwardly under the resilient urging of the compressed spring 52 i For resiliently urging the fingers 3'7into' their extended position the plunger'rod 63 .is fixed 'tothe plunger "55 and an actuating block tisis' provided at the outer" end thereof and disposed so as to engage the fingers 37 above their pivot points. Downward sliding movement of the plunger 55, under theiurging of the spring 56, causes the block 65 to resiliently urge the fingers 37 toward their extended, bobbin holding positions and into engage ment with the bobbin B fitted'on the tip. It willbe understood that the spring 56is stronger than the spring 62 so that the former is effective to overcome the force exerted by the latter, when the cam 58 permits the plunger to move downwardly. 7
It will beobserved that the fingers 37 are resiliently biased, ratherthan' rigidly forced, into both theirextended and retracted positions. Thus inadvertent inward movement of the fingers, such as would occur if a-bobbin were forcibly removed while the fingers wereiextended, will simply swing the fingers againsttheblock 65 with yielding of the spring 56. Conversely, if an attempt is made to slide a bobbin onto the skewer with the fingers extended (see Fig. 7) the fingers simply swing against the abutment member 61 accompanied by yielding of the spring 62.
Although any number of variably sized replaceable tips 36 can be utilized with the skewer 10, it has been found that with a minimum of three different tips all bobbins in current commercial use can be handled by the skewer. Adapting the winder to handle bobbins of varying size merely involves lifting one replaceable tip from the mounting head 35 and snapping another, suitably sized, tip in place. Heretofore, it was necessary to substitute an entirely different skewer each time such a change was made and this operation was both time consuming and expensive since it required utilizing a complete set of skewers, including the bobbin holding finger actuating mechanisms, rather than merely a set of economical, replaceable tips a I claim as my invention: 1. A bobbin supporting skewer for handling bobbins having bores of varying diameter comprising, in .combination, a hollow shaft having a mounting head at one end, a plurality of bobbin holding fingers carried on said head and movable between retractedand extended 7 Positions, a replaceable tip mounted on said head and V 4 having an outer diameter corresponding to the bore size of the bobbin to be handled, said tip and sa dhead ing respective mating portions, to ISSlTItE IIllY S IiaP-TOEK said tip on said head and prevent relative rotation, said tip and said head also being formed to provide an ntermediate recess when snaplocked together permitting insertion of a tool for readily separating the tip from the head, said tip having a plurality of opemngsahned with said fingers so that-thefingers may extendithrough said openings into engagement with a bobbin, fitted on .7
said tip, and a plunger slidably mounted insaid shaft having nie'a'i'is for retracting or extending said fingers upon axial movement of the plunger.
' 2. A bobbin supporting-skewer for handl ng-bobbins having bores of varying diametercomprising, n combination, a hollow shaft having a generally cylindrical mounting head at one end, said head being divided by peripherally spaced and axially extending slots forming narrow resilient head portions parallel to oneanothena bobbin holding-finger pivoted in each-of said slots and swingablebetween retracted and extendedpositions, a generally annular replacement tip -slidably fitted oversaid head por tions and having an-outer diameter corresponding to the bore size of ithexbobbin to be -handled,-- said tip and said resilient headportions having interengaging detentelements snap-locking the tip on said head, said tip having a plurality-of slots alined withsaid =fingers so that the fingers may swing through said slots intoengagementwith a bobbin fittedon said tip,and a plunger-slidably mounted in said shaft having means for-'retractingor extendin said fingers upon axial movement of the plunger;-
3, -A bobbin supporting skewer forhandling bs igsiiis having boresot" varying diameter comprising, in combine tion, a hollow'shaft having amounting head withan outerdiameter slightly iess than the, page at the sizfes of bobbins to be handled, a pluralityof bobbin holding fingers carried on said head and movable between inwar'd positions, s'aidhead having 'a'plu'rality' of slotsjalined with said fingers so that the fingers may extend throiighsaid slots into engagement with a bobbin fitted on said'head, 'first spring :ineans for;urging'said fingers inwardly, a plunger-slidahly mounted within'said shaft, a camhaving a dwell portion and a reeess, second spring means'for biasing said plunger against said cam, and an element on Said P unger for engaging and urg ng I said fingers wardly when said plunger is aimed with sa d'eam recess,
. H the second spring means being stronger fi spring means so that the setting of the-earn determines toward which of said positions the fingers are resiliently urged.
4. A bobbin supporting skewer for handling bobbins I having bores of varying diameter comprising, in combinationya hollowshaft having a mounting head at oneend, a plurality of bobbin holding fingers c'arriedon said head and movable between inward and outward positions, a
replaceabletip mounted on said head and having a flared seating surface-for accommodating a {range of bore sizes of the bobbins to be handled, saidtip having a plurality of slots alined with said fingers so that the fingers mayexs tend through said slots into engagement with a bobbin fitted on said tip, a first resiliently biased plunger member for urging said fingers outwardly, a second resiliently biased plunger member for urging said fingers inwardly,
and a cam for operating upon one of said plunger 'mem-l" hers;
References Cited in-the file" of this patent V UNITED STATES PATENTS 623,493 I Tivy et'al.'; Apr. 18, 1899 1,259,448 =Reynoldsi;i Mar. 12,1918 1,686,102 Peterson Oct. 2,1928 2,168,248 Staufert Aug. 1, 1939 2,437,100 LambachQ Mar.'2 ,"1948
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US698183A US2954183A (en) | 1957-11-22 | 1957-11-22 | Skewer for winding machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US698183A US2954183A (en) | 1957-11-22 | 1957-11-22 | Skewer for winding machine |
Publications (1)
Publication Number | Publication Date |
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US2954183A true US2954183A (en) | 1960-09-27 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US698183A Expired - Lifetime US2954183A (en) | 1957-11-22 | 1957-11-22 | Skewer for winding machine |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3155332A (en) * | 1962-04-09 | 1964-11-03 | Barber Colman Co | Bobbin skewer |
US3182925A (en) * | 1963-05-22 | 1965-05-11 | Barber Colman Co | Bobbin handling mechanism for winders |
DE1235203B (en) * | 1962-03-01 | 1967-02-23 | Schweiter Ag Maschf | Attachment spindle for automatically exchangeable reels |
US3951353A (en) * | 1975-05-29 | 1976-04-20 | West Point-Pepperell, Inc. | Bobbin support assembly |
WO1988010229A1 (en) * | 1987-06-26 | 1988-12-29 | James Lee Alexander | Package adapter |
EP0297997A1 (en) * | 1987-07-02 | 1989-01-04 | Richard Piechowicz | Device for detecting the yarn end of a bobbin on a knitting machine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US623493A (en) * | 1899-04-18 | William ii | ||
US1259448A (en) * | 1916-07-18 | 1918-03-12 | Charles D Reynolds | Winding-machine. |
US1686102A (en) * | 1919-09-11 | 1928-10-02 | Edgar S Nethercutt | Winder |
US2168248A (en) * | 1938-02-17 | 1939-08-01 | Staufert Carl | Device ancillary to spinning spindles and the like |
US2437100A (en) * | 1944-10-16 | 1948-03-02 | Lambach Fritz | Auxiliary bobbin support for use on the shank of a bobbin holder |
-
1957
- 1957-11-22 US US698183A patent/US2954183A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US623493A (en) * | 1899-04-18 | William ii | ||
US1259448A (en) * | 1916-07-18 | 1918-03-12 | Charles D Reynolds | Winding-machine. |
US1686102A (en) * | 1919-09-11 | 1928-10-02 | Edgar S Nethercutt | Winder |
US2168248A (en) * | 1938-02-17 | 1939-08-01 | Staufert Carl | Device ancillary to spinning spindles and the like |
US2437100A (en) * | 1944-10-16 | 1948-03-02 | Lambach Fritz | Auxiliary bobbin support for use on the shank of a bobbin holder |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1235203B (en) * | 1962-03-01 | 1967-02-23 | Schweiter Ag Maschf | Attachment spindle for automatically exchangeable reels |
US3155332A (en) * | 1962-04-09 | 1964-11-03 | Barber Colman Co | Bobbin skewer |
US3182925A (en) * | 1963-05-22 | 1965-05-11 | Barber Colman Co | Bobbin handling mechanism for winders |
US3951353A (en) * | 1975-05-29 | 1976-04-20 | West Point-Pepperell, Inc. | Bobbin support assembly |
WO1988010229A1 (en) * | 1987-06-26 | 1988-12-29 | James Lee Alexander | Package adapter |
US4941622A (en) * | 1987-06-26 | 1990-07-17 | Alexander James L | Package adapter |
EP0297997A1 (en) * | 1987-07-02 | 1989-01-04 | Richard Piechowicz | Device for detecting the yarn end of a bobbin on a knitting machine |
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