US3495781A - Expansible bobbin mandrel - Google Patents
Expansible bobbin mandrel Download PDFInfo
- Publication number
- US3495781A US3495781A US685897A US3495781DA US3495781A US 3495781 A US3495781 A US 3495781A US 685897 A US685897 A US 685897A US 3495781D A US3495781D A US 3495781DA US 3495781 A US3495781 A US 3495781A
- Authority
- US
- United States
- Prior art keywords
- bobbin
- cylinder
- expansible
- mandrel
- bushing
- 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
Links
Images
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
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/24—Constructional details adjustable in configuration, e.g. expansible
- B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
- B65H75/245—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages by deformation of an elastic or flexible material
- B65H75/2455—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages by deformation of an elastic or flexible material deformation resulting from axial compression of elastic or flexible material
-
- 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
- This invention relates to an expansible bobbin mandrel for holding bobbin sleeves on a reeling machine. More particularly, this invention relates to an expansible bobbin mandrel for holding bobbin sleeves on a yarn reeling machine.
- Expansible bobbin mandrels have been used heretofore in order to secure bobbin sleeves in place during a winding operation on a reeling machine.
- these expansible bobbin mandrels have been associated with various braking gears and chuck holders which have respectively controlled the braking of a rotating sleeve on the mandrel and the releasing of the sleeve from the mandrel for removal and replacement.
- these expansible bobbin mandrels have frequently allowed the bobbin sleeves to become loosened before the sleeves have been brought to an actual standstill. This has usually been due to an independent actuation of the chuck holders from the braking gear.
- this loosening of the sleeves has led to an undesirable phenomena of wear on the sleeve as well as on the elements supporting the sleeve.
- the invention provides an expansible bobbin mandrel with a chuck mechanism for releasably holding a bobbin sleeve on the mandrel and a braking mechanism for bringing a rotating bobbin sleeve on the mandrel to a standstill.
- the chuck mechanism and braking mechanism are interconnected to each other so that the chuck mechanism is actuated to permit release and removal of the sleeve from the mandrel only after the braking mechanism has brought the rotating bobbin to a standstill.
- the braking mechanism and chuck mechanism are actuated from a single'actuating means; however, a control means is interposed in the actuating means to permit completion of the braking operation of the braking mechanism prior to initiation of the effective releasing operation of the chuck mechanism.
- This control means is constructed to initially follow the actuation 3,495,781 Patented ]F eb. 17, 1970 of the braking mechanism so as to prevent actuation of the chuck mechanism while, after braking of a bobbin sleeve to rest, the control means is returned to its initial position to permit subsequent actuation of the chuck mechanism.
- the expansible bobbin mandrel of the invention increases operational safety due to an arresting of the bobbin rotation prior to the loosening of the bobbin sleeve. Also, since the expansible mandrel requires only a single actuating means or system for actuating the braking function as well as the loosening function of the respective braking andchuck mechanisms, a simplified mandrel construction is provided. Further, there is substantially no dependence upon the structural dimensions of the expansible mandrel for operation of the above functions of the expansible mandrel. Still further, the construction of the expansible mandrel is of a very compact nature wherein all rotating elements are coaxially arranged in symmetrical relation with respect to rotation so that balancing of the mandrel is obviated after assembly.
- FIG. 1 illustrates a cross-sectional view of an expansible bobbin mandrel according to the invention
- FIG. 2 illustrates a detail of the control means of the expansible bobbin mandrel of the invention
- FIG. 3 illustrates a fragmentary view of the actuating means of the expansible bobbin mandrel in a bobbin creeling position
- FIG. 4 illustrates a side view of an expansible bobbin mandrel of the invention on which a rotatable bobbin is mounted in contact with a drive roller during a creeling operation.
- the expansible bobbin mandrel includes a shaft 1 having a central bore 2 which is fixedly mounted in an arm 3 and which rotatably supports a cylinder 4 on anti-friction roller bearings.
- a braking mechanism is incorporated within the cylinder 4 to arrest rotation of the cylinder 4 and includes a ring 5 fixedly secured to the internal surface of the cylinder 4 as by a dowel pin 5' and a ring 6 fixedly secured to the external surface of the shaft 1 as by a locking screw 6.
- the braking mechanism includes a compression and torsion spring 7 which is mounted concentrically of the shaft 1 and anchored at one end in the fixed ring 6 and engaged with a bushing 8 at the other end.
- the bushing 8 is both rotatable and slidable with respect to the shaft 1 to act as a control means within the actuating means and is mounted concentrically on the shaft 1 for movement relative to the fixed ring 6 under the biasing force of the spring 7 against a snap ring 11 mounted on the shaft 1.
- the bushing 8 has an annular flange 9 which includes a brake lining 10 on one face facing the fixed ring 5 on the cylinder 4 in normally spaced relation and which is recessed on the opposite face to overlie the snap ring 11.
- the outer surface of the flange 9 is provided with a non-contact labyrinth sealing zone 12 for sealing relationship with the cylinder 4.
- a sealing flange 13 is tightly secured on the shaft 1 adjacent the bushing flange 9 in similar sealing relation with the cylinder 4 so as to seal off the interior of the cylinder 4 at this end.
- the sealing flange 13 is recessed on the side opposite the bushing flange 9 so as to define a chamber 14.
- the actuating means for the braking mechanism includes a pressure fluid system having central bore 2 in the shaft 1 which communicates with the chamber 14 through a radially directed port 15 and with a chamber 14' in the interior of the cylinder 4 on the side of the bushing 8 opposite chamber 14 through another radially directed port 17 in the shaft 1 and an opening 16 in the bushing 8.
- the port 17 is smaller in diameter (i.e. cross-sectional area) than the port 16 and is normally coincident with the bushing opening 16.
- a cover 18 is secured in the end of the cylinder 4 to seal off the cylinder 4 at this end and to define the limit of chamber 14'.
- a chuck mechanism for holding a bobbin sleeve 27 on the cylinder 4 includes a piston 20 which is slidably mounted in a bore 19 in the cover 18 in sealed relation.
- the piston 20 is spring loaded at one end by a compression spring 21 in a direction towards the bushing 8 and is secured at the opposite end to a tube 22 of the chuck mechanism which is slidably mounted on the outside surface of the cylinder 4 by a plate 34 in a suitable manner.
- the tube 22 has a chamfered surface 23 at the free end and cooperates with a similarly chamfered coaxial tube 24 slidably mounted on the cylinder to support a deformable rubber ring 25 therebetween.
- the coaxial tube 14 has a chamfered surface at the opposite end which cooperates with another chamfered coaxial tube 24 on the opposite end of the cylinder 4 to support a deformable rubber ring 26.
- the rubber rings 25, 26 when deformed by the bringing together of the coaxial tubes 22, 24, 24 engage a bobbin sleeve 27 in locking relation both axially and radially to permit creeling of a yarn package on the bobbin sleeve 27 in a known manner.
- the above described actuating means is also used to activate the chuck mechanism while the bushing 8 is interposed in the actuating means to control the activation of the chuck mechanism.
- the lower end of the arm 3 is secured in a bearing box 29 which is slidably rotatably mounted on a fixed bearing bolt 31 of a machine frame 30.
- a line 28 outside the arm 3 communicates with the bore 2 of the shaft 1 and ends in the bearing box 29 of the arm 3.
- the bearing bolt 31 has an axial bore 32 which communicates with a radial opening 33 to coincide with the end of the line 28 in the bearing box 29 when in the position indicated by the dot-dashed lines. This position corresponds to the removal position of a bobbin 27 (FIG. 4) from a drive roll 27".
- the bore 32 of the bearing bolt 31 is connected to a suitable pressure fluid source (not shown), such as an air pressure source, such that when the arm 3 is positioned in the dot-dash line position of FIG. 3, pressure fluid is conveyed into the bore 2 of the shaft 1 whereas, when the arm 3 is positioned in the full line position of FIG. 3, pressure fluid is prevented from flowing into the bore 2 of the shaft 1.
- a suitable pressure fluid source such as an air pressure source
- the arm 3 In operation, when the arm 3 is swiveled away from the drive roller 24" to remove the bobbin 27 from driving contact with the drive roller 24" as is known, the arm 3 assumes the position indicated by the dot-dashed lines of FIGS. 3 and 4. A flow of pressure fluid is then conveyed from bore 32 through the line 28 to the bore 2 in the shaft 1. The pressure fluid then passes through the ports 15 and 17 although at different rates due to the throttling effect of the smaller port 17. This allows the pressure in the smaller chamber 14 between the bushing 8 and flange 13 to build up immediately while the pressure in the larger chamber 14' is slowly increased.
- the other rubber ring 26 thus also becomes relaxed. Because the rings 25, 26 become relaxed, their outer dimensional configuration becomes lessened such that their grip on the bobbin sleeve 27 substantially diminishes to zero. The yarn filled bobbin sleeve 27 can then be removed and replaced by a fresh bobbin sleeve.
- the arm 3 is swiveled back towards the drive roll 27 to engage the bobbin sleeve with the drive roll 27.
- the conveyance of the pressure fluid to the central bore 2 of the shaft 1 is cut off.
- the pressure in the chambers 14, 14 can then be temporarily relieved through blowofr" openings 35, 36 in the cover 18 and plate 34 so that the spring 21 can retract the piston 20 back into the cylinder 4.
- a three-way-valve can be incorporated in the pivot of the arm 3 to permit blowing 01f of the pressure fluid through the central bore 2 by way of the line 28.
- expansible bobbin mandrel for bobbin sleeves comprising a fixedly mounted shaft
- a braking mechanism within said cylinder for arresting rotation of said cylinder on said shaft
- a chuck mechanism mounted on said cylinder for releasably gripping a bobbin sleeve disposed concentrically on said cylinder, and
- an actuating means for actuating said braking mechanism and said chuck mechanism in sequential order whereby said braking mechanism arrests rotation of said cylinder prior to actuation of said chuck mechanism.
- said actuating means further includes a second chamber on the opposite side of said piston from said first chamber for containing pressure fluid under pressure, a central bore in said shaft for conveying pressure fluid therethrough, a first port in said shaft communicating said bore with said first chamber to feed pressure fluid into said first chamber and a second port in said shaft of less diameter than said first port communicating said bore with said second chamber and being coincident with the aperture in said bushing to feed pressure fluid into said second chamber at a throttled rate whereby the pressure in said first chamber is increased at a faster rate than the pressure in said second chamber to cause said higher pressure on said bushing for moving said bushing against said spring.
- An expansible bobbin mandrel as set forth in claim 4 wherein said bushing is rotatably mounted on said shaft for turning thereon against said spring during sliding engagement of said brake lining with said cylinder to move the aperture on said bushing out of coincidence with said second port whereby flow of pressure fluid into said second chamber is stopped until braking of said cylinder to a standstill.
- An expansible bobbin mandrel as set forth in claim 2 which further includes an arm fixedly mounting said shaft therein, said arm being swively mounted on a bearing bolt having a bore therein for movement between a 'bobbin rotating position and a bobbin removal position, and said actuating means includes a line mounted on said arm and communicating said bore with said first chamber with said arm in said bobbin rotating position to convey pressure fluid from said bore to said first chamber and closing off said bore from said first chamber with said arm in said bobbin removal position to prevent flow of pressure fluid into said first chamber.
- said chuck mechanism includes a piston slidably mounted in one end of said cylinder, a spring biasing said piston into said cylinder, a first tube secured to said piston and slidably mounted on the outside of said cylinder, a second tube slidably mounted on said cylinder, a third tube mounted on said cylinder and deformable means between said first and second tubes and said second and third tubes for gripping a bobbin sleeve thereon, and wherein said actuating means includes a chamber on one side of said spring within said cylinder for receiving pressure fluid whereby an increase in pressure in said chamber moves said piston against said spring out of said cylinder to move said tubes from out of deformable contact with said deformable means to release a gripped bobbin sleeve thereon.
Landscapes
- Braking Arrangements (AREA)
- Winding Filamentary Materials (AREA)
- Winding Of Webs (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1794466A CH443993A (de) | 1966-12-13 | 1966-12-13 | Spulenspanndorn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3495781A true US3495781A (en) | 1970-02-17 |
Family
ID=4429265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US685897A Expired - Lifetime US3495781A (en) | 1966-12-13 | 1967-11-27 | Expansible bobbin mandrel |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3495781A (de) |
| JP (1) | JPS5230615B1 (de) |
| CH (1) | CH443993A (de) |
| DE (1) | DE1574399B2 (de) |
| FR (1) | FR1558976A (de) |
| GB (1) | GB1207819A (de) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3592408A (en) * | 1969-04-30 | 1971-07-13 | Standard Oil Co | Spindle |
| US3593932A (en) * | 1969-12-17 | 1971-07-20 | Du Pont | Bobbin chuck |
| US3977616A (en) * | 1973-10-31 | 1976-08-31 | Fiber Industries, Inc. | Yarn winding apparatus |
| US4023742A (en) * | 1974-09-17 | 1977-05-17 | Fiber Industries, Inc. | Yarn winding apparatus |
| US4036446A (en) * | 1974-10-09 | 1977-07-19 | Rieter Machine Works, Ltd. | Method and apparatus for braking a bobbin chuck and for releasing a bobbin tube thereon |
| US4093137A (en) * | 1977-05-19 | 1978-06-06 | Ppg Industries, Inc. | Expandable collet |
| US4103833A (en) * | 1975-05-29 | 1978-08-01 | Toray Industries, Inc. | Yarn winding apparatus |
| US4175712A (en) * | 1977-05-04 | 1979-11-27 | Barmag Barmer Maschinenfabrik Ag | Chucking spindle for the reception of a bobbin carrier |
| US4213573A (en) * | 1979-03-07 | 1980-07-22 | Reiter Machine Works, Ltd. | Air coupling |
| US4232835A (en) * | 1979-07-12 | 1980-11-11 | E. I. Du Pont De Nemours And Company | Bobbin chuck |
| US4375278A (en) * | 1980-09-09 | 1983-03-01 | Barmag Barmer Maschinenfabrik Ag | Self-tightening sleeve holder |
| US4453677A (en) * | 1980-06-12 | 1984-06-12 | Hoechst Aktiengesellschaft | Device for doffing a bobbin |
| US4458850A (en) * | 1981-10-30 | 1984-07-10 | Teijin Seiki Co., Ltd. | Bobbin holder |
| US4575015A (en) * | 1984-03-19 | 1986-03-11 | Teijin Seiki Company Limited | Fluid coupling device |
| US4613092A (en) * | 1984-03-16 | 1986-09-23 | Kamitsu Seisakusho Ltd. | Spindle assembly for winding machine |
| US6116669A (en) * | 1998-03-20 | 2000-09-12 | Scaglia Spa | Device to automatically attach a bobbin-bearing shaft to a mandrel of a machine |
| CN110040575A (zh) * | 2018-01-13 | 2019-07-23 | 欧瑞康纺织有限及两合公司 | 用于保持至少一个卷绕筒管的转接机构 |
| CN110877843A (zh) * | 2019-11-26 | 2020-03-13 | 安徽翰联色纺股份有限公司 | 一种可防止纱线松散的纱线收卷装置 |
| CN111185958A (zh) * | 2019-09-26 | 2020-05-22 | 山东恒联新材料股份有限公司 | 用于再生纤维素薄膜摇纸机的可拆卸鼓体及摇纸机 |
| CN111439637A (zh) * | 2020-05-15 | 2020-07-24 | 苏州英迈杰机械有限公司 | 一种筒管自动涨紧装置 |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH563940A5 (de) * | 1973-02-02 | 1975-07-15 | Rieter Ag Maschf | |
| CH513763A (de) * | 1969-10-03 | 1971-10-15 | Rieter Ag Maschf | Verfahren zum automatischen Wechseln von Hülsen und Aufwindvorrichtung zur Durchführung des Verfahrens |
| JPS549525U (de) * | 1977-06-23 | 1979-01-22 | ||
| JPS5463413U (de) * | 1977-10-13 | 1979-05-04 | ||
| JPS5533330U (de) * | 1978-08-24 | 1980-03-04 | ||
| JPS60174723U (ja) * | 1984-04-27 | 1985-11-19 | 安本 重一 | タイトフレ−ム |
| DE4224100C2 (de) * | 1991-08-02 | 1997-06-05 | Barmag Barmer Maschf | Spulspindel |
| DE102008013125A1 (de) | 2008-03-07 | 2009-09-10 | Oerlikon Textile Gmbh & Co. Kg | Spulenhalter |
| CN102647057B (zh) * | 2012-05-09 | 2013-12-18 | 杭州奥士玛数控设备有限公司 | 汽车发电机转子涨紧式绕线工装 |
| CN110498298A (zh) * | 2019-07-17 | 2019-11-26 | 徐州祥华丝绸有限公司 | 一种丝织品使用的具有制动弹簧速度传感丝织线辊装置 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2365980A (en) * | 1943-09-14 | 1944-12-26 | U S Textile Machine Company | Mandrel |
| US2469590A (en) * | 1945-06-20 | 1949-05-10 | Celanese Corp | Bobbin holder |
| US2564746A (en) * | 1948-02-12 | 1951-08-21 | American Viscose Corp | Expansible package support |
-
1966
- 1966-12-13 CH CH1794466A patent/CH443993A/de unknown
-
1967
- 1967-11-01 JP JP42070509A patent/JPS5230615B1/ja active Pending
- 1967-11-24 DE DE19671574399 patent/DE1574399B2/de not_active Ceased
- 1967-11-27 US US685897A patent/US3495781A/en not_active Expired - Lifetime
- 1967-11-28 FR FR1558976D patent/FR1558976A/fr not_active Expired
- 1967-12-13 GB GB56547/67A patent/GB1207819A/en not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2365980A (en) * | 1943-09-14 | 1944-12-26 | U S Textile Machine Company | Mandrel |
| US2469590A (en) * | 1945-06-20 | 1949-05-10 | Celanese Corp | Bobbin holder |
| US2564746A (en) * | 1948-02-12 | 1951-08-21 | American Viscose Corp | Expansible package support |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3592408A (en) * | 1969-04-30 | 1971-07-13 | Standard Oil Co | Spindle |
| US3593932A (en) * | 1969-12-17 | 1971-07-20 | Du Pont | Bobbin chuck |
| US3977616A (en) * | 1973-10-31 | 1976-08-31 | Fiber Industries, Inc. | Yarn winding apparatus |
| US4023742A (en) * | 1974-09-17 | 1977-05-17 | Fiber Industries, Inc. | Yarn winding apparatus |
| US4036446A (en) * | 1974-10-09 | 1977-07-19 | Rieter Machine Works, Ltd. | Method and apparatus for braking a bobbin chuck and for releasing a bobbin tube thereon |
| US4103833A (en) * | 1975-05-29 | 1978-08-01 | Toray Industries, Inc. | Yarn winding apparatus |
| US4175712A (en) * | 1977-05-04 | 1979-11-27 | Barmag Barmer Maschinenfabrik Ag | Chucking spindle for the reception of a bobbin carrier |
| US4093137A (en) * | 1977-05-19 | 1978-06-06 | Ppg Industries, Inc. | Expandable collet |
| US4213573A (en) * | 1979-03-07 | 1980-07-22 | Reiter Machine Works, Ltd. | Air coupling |
| US4232835A (en) * | 1979-07-12 | 1980-11-11 | E. I. Du Pont De Nemours And Company | Bobbin chuck |
| US4453677A (en) * | 1980-06-12 | 1984-06-12 | Hoechst Aktiengesellschaft | Device for doffing a bobbin |
| US4375278A (en) * | 1980-09-09 | 1983-03-01 | Barmag Barmer Maschinenfabrik Ag | Self-tightening sleeve holder |
| US4458850A (en) * | 1981-10-30 | 1984-07-10 | Teijin Seiki Co., Ltd. | Bobbin holder |
| US4613092A (en) * | 1984-03-16 | 1986-09-23 | Kamitsu Seisakusho Ltd. | Spindle assembly for winding machine |
| US4575015A (en) * | 1984-03-19 | 1986-03-11 | Teijin Seiki Company Limited | Fluid coupling device |
| US6116669A (en) * | 1998-03-20 | 2000-09-12 | Scaglia Spa | Device to automatically attach a bobbin-bearing shaft to a mandrel of a machine |
| US6402213B1 (en) | 1998-03-20 | 2002-06-11 | Scaglia Spa | Device to automatically attach a bobbin-bearing shaft to a mandrel of a machine |
| US6619711B2 (en) | 1998-03-20 | 2003-09-16 | Scaglia Spa | Device to automatically attach a bobbin-bearing shaft to a mandrel of a machine |
| CN110040575A (zh) * | 2018-01-13 | 2019-07-23 | 欧瑞康纺织有限及两合公司 | 用于保持至少一个卷绕筒管的转接机构 |
| CN111185958A (zh) * | 2019-09-26 | 2020-05-22 | 山东恒联新材料股份有限公司 | 用于再生纤维素薄膜摇纸机的可拆卸鼓体及摇纸机 |
| CN111185958B (zh) * | 2019-09-26 | 2022-03-15 | 山东恒联新材料股份有限公司 | 用于再生纤维素薄膜摇纸机的可拆卸鼓体及摇纸机 |
| CN110877843A (zh) * | 2019-11-26 | 2020-03-13 | 安徽翰联色纺股份有限公司 | 一种可防止纱线松散的纱线收卷装置 |
| CN111439637A (zh) * | 2020-05-15 | 2020-07-24 | 苏州英迈杰机械有限公司 | 一种筒管自动涨紧装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1558976A (de) | 1969-03-07 |
| DE1574399B2 (de) | 1973-05-03 |
| GB1207819A (en) | 1970-10-07 |
| JPS5230615B1 (de) | 1977-08-09 |
| CH443993A (de) | 1967-09-15 |
| DE1574399A1 (de) | 1971-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3941320A (en) | Braking device in coil support frame or cradle | |
| US3841574A (en) | Winding device for synthetic threads | |
| US2914359A (en) | Anti-skid brake control system | |
| US5522581A (en) | Balancing hoist and material handling system | |
| US4429838A (en) | Clamping chuck in winding machines | |
| US2667356A (en) | Hydraulic chuck | |
| GB1207819A (en) | Expansible bobbin mandrel | |
| US2949313A (en) | Expanding chuck mechanism | |
| US3246858A (en) | Roll shaft support | |
| GB1165192A (en) | Improvements in or relating to Web Rollstands | |
| US3637156A (en) | Expansible mandrel | |
| US3462092A (en) | Textile bobbin chuck | |
| JP2000247542A (ja) | 綾巻きボビンを製造する繊維機械のための巻き取り装置 | |
| US2715304A (en) | Work clamping and releasing mechanism for centerless grinding machines | |
| US3837591A (en) | Stands for reels of paper | |
| US3977616A (en) | Yarn winding apparatus | |
| US2663512A (en) | Reel mechanism | |
| US3767129A (en) | Mandrel | |
| US1981563A (en) | Spooling apparatus | |
| US2363988A (en) | Winder | |
| US3728827A (en) | Safety device for a grinding spindle | |
| JPH0649540B2 (ja) | ロ−ルホルダ | |
| US3498551A (en) | Yarn reeling machine | |
| US3604684A (en) | Mine hoist with relockable winding drums | |
| US4337904A (en) | Web tension control method and apparatus |