US3843094A - Traction device - Google Patents
Traction device Download PDFInfo
- Publication number
- US3843094A US3843094A US00321294A US32129473A US3843094A US 3843094 A US3843094 A US 3843094A US 00321294 A US00321294 A US 00321294A US 32129473 A US32129473 A US 32129473A US 3843094 A US3843094 A US 3843094A
- Authority
- US
- United States
- Prior art keywords
- drum
- rope
- housing
- pinch roller
- groove
- 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
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
- B66D1/74—Capstans
- B66D1/7442—Capstans having a horizontal rotation axis
- B66D1/7447—Capstans having a horizontal rotation axis driven by motor only
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20396—Hand operated
- Y10T74/20474—Rotatable rod, shaft, or post
- Y10T74/20486—Drum and cable
Abstract
The self-reeving tractive device is usable as a hoist, capstan or winch. The drum rotates within a housing having a helical groove on the inside cooperating with the drum to confine the (wire) rope to the groove. A pinch roller projects through the housing to squeeze or hold the rope against the drum. When the rope end is introduced through an opening at one end of the drum, the roller grips the rope in cooperation with the drum to force the rope to feed into the groove. With each complete wrap on the drum, the roller again grips the rope so it is continually forced along the groove. The rope leaves the drum at the other end of the drum and passes through an opening in the housing. Another roller, spring pressed, acts on the rope to keep tension on the tail to prevent relaxing of the rope with consequent loss of frictional engagement with the drum. For practical purposes, the drum is totally enclosed and the risk of getting ''''caught'''' in the wraps is minimal.
Description
[ Oct. 22, 1974 United States Patent [191 Watts TRACTION DEVICE [57] ABSTRACT The self-reeving tractive device is usable as a hoist,
[76] Inventor: Robert H. Watts, PO. Box 90302,
Cincinnati, Ohio 53202 Jan. 5, 1973 [21] Appl. No.: 321,294
[22] Filed capstan or winch. The drum rotates within a housing having a helical groove on the inside cooperating with the drum to confine the (wire) rope to the groove. A
pinch roller projects through the housing to squeeze or hold the rope against the drum. When the rope end is introduced through an opening atone end of the drum, the roller grips the rope in cooperation with the drum to force the rope to feed into the groove. With each complete wrap on the drum, the roller again grips the rope so it is continually forced along the groove. The rope leaves the drum at the other end of v 6 O B J 4 84 /M i 24 9 4 R0 228 .0 1 3 W9 .5 7 30 MN m 7 24 74 45 l i 22 /1 9 i u flm M27 0 m M 5 u 2 1 n 4 2 "2 .4 u I 2 mmR m o u Hams u 1 a I i. in d s mm U [F 2 8 5 55 .l. [rl
[56] References Cited UNITED STATES PATENTS the drum and passes through an opening in the housing. Another roller, spring pressed, acts on the rope to keep tension on the tail to prevent relaxing of the rope with consequent loss of frictional engagement with the drum. For practical purposes, the drum is totally en- 2 1mm M W l 2 2 4 4 5 2 2 u mm c" -K nn eo SZL 0070 567 999 ill l// 653 352 880 911 11' 320 233 l d d th k f tt' ht th Primary Examiner-Evon C. Blunk g ggi g? e m o ge mg caug m e wraps Assistant Examiner-Jeffrey V. Nase Attorney, Agent, or Firm-Michael, Best & Friedrich 7 Claims, 4 ng igure TRACTION DEVICE BACKGROUNDOF THE INVENTION In traction devices of the general type disclosed herein, the matter of winding wire rope on the drum has been somewhat of a problem and has frequently been a rather complex affair permitting mistakes to be made and frequently allowing the rope to spring from Y, the drum if tension was relieved. This, in turn, gave rise to the possibility of overwraps and the like, all impairing efficient use of the equipment. Furthermore, the rope was exposed so as to give rise to the risk of getting clothing or ones hand caught in the rope.
SUMMARYOF THE INVENTION By providing an internal helical groove in the housing surrounding the drum and forcing the rope to follow the groove so that it is wrapped around and fed along the drum, the arrangement becomes self-reeving. A pinch roller cooperating with the drum and having the same surface speed as the drum acts to force the rope into the groove and keep it properly tensioned on the drum. A tailing roller applies a final pinch to the tail preventing that end from going slack and permitting the slack to feed back through the rope so as to lose the grip on the drum.
In the past various drums have been proposed having grooves in the drum surface. This does not accomplish what is accomplished here by way of self-reeving.
Since the rope is confined between the drum and the groove and there is obviously friction between the rope and the groove, the power to turn the drum is greater than in an ordinary winch arrangement. This is considered more than offset by the simple foolproof operation permitted by this design.
DESCRIPTION OF THE DRAWINGS FIG. 1 is a partly exploded, perspective view with parts broken away to show the manner in which the wire rope is wrapped on the drum.
FIG. 2 is a longitudinal, horizontal section through the housing with the drum and pinch roller not sectioned.
FIG. 3 is a vertical cross section through the traction device at the end from which the rope exits.
FIG. 4 is a vertical section through the traction device at the end of which the rope is fed to be wrapped on the drum.
DESCRIPTION OF THE PREFERRED EMBODIMENT The traction drive drum 10 is contained within housing 12 including cylindrical section 14 and end plates 16,18. The drum is journaled in the end plates in bearings 20,22 and is driven by the motor (electric, hydraulic or, for that matter, a hand drive) through shaft 26. Gear 28 on shaft 26 drives gear 30 on jackshaft 32. The pinch roller 34 is fixed on the jackshaft and the roller assembly is journaled in bearings 36,38 in the housing end plates 16,18. The mean radius of gear 28 corresponds to the drum radius plus approximately half the thickness of wire rope 48. The mean radius of gear 30 corresponds to the radius of pinch roller 34 plus half the rope diameter and thus, due to the gear drive, the roller and drum will rotate at the same peripheral speed to smoothly pick up and drive the rope between the drum and roller. Theoretically, the roller would not have to be driven but it is deemed advantageous to drive both the drum and roller so as to maximize the force applied to the wire rope. The housing is extended by means of a further housing member 40 to enclose the motor and gearing. The drum can be provided with longitudinal striations 42 or have a roughened surface to increase the grip of the drum on the wire rope.
The inside of the cylindrical portion 14 of housing 12 is provided with a helical groove 44 which starts in alignment with the aperture in rope guide 46. When the rope is inserted through the guide, the end is picked up between the rotating drum and the pinch roller and forced into the helical groove and thus is wrapped on and fed along the drum. After each complete revolution the end will again pass between the pinch roller and drum to be re-engaged thereby so the drive force is maintained on the rope to force it through the helical groove. Close to the end of the helical groove, the housing is apertured to permit the tailing roller 50 to engage the rope and hold it firmly against the drum by reason of compressed spring 54 acting on the plunger 52 supporting the tailing roller. The end of the rope then is automatically fed through the aperture 56 and leaves the traction device. With tension on rope 48 in the direction of the arrow in FIGS. 1, 3, and 4, there could be, notwithstanding the action of the pinch roller, some tendency for the line to slip on the drum but with the roller 50 acting on the line at the tail, this tendency is eliminated and a considerable load can be carried on the line due to the frictional engagement of the wraps on the drum.
The action of the tailing roller is interesting. The spring force is applied through the roller to the rope on a line which would fall below the center of the drum in FIG. 3. This develops a force component tangential to the drum pointing towards the tail i.e., resisting run-out of the line. The tailing force thus obtained is adequate to resist pulling line from the drum. This tailing force would not be obtained if the roller applied the spring force radially.
This construction provides automatic reeving of the rope while preventing overriding of the wraps. The rope is fully enclosed to reduce danger of getting ones hand or clothing caught. The proper number of wraps must be used, thus insuring safe operating conditions.
The pinch roller is made of resilient urethane which will give an effective spring loading to the engagement of the roller on the rope. Deformation of the roller also obtains a good grip on the rope strands. If desired, the pinch roller could be spring loaded but this is not considered necessary.
I claim:
1. A traction device comprising:
a drum having a generally cylindrical surface,
means for rotating the drum in either direction,
a generally cylindrical housing enclosing the drum and having an internal helical groove positioned close enough to the drum so as to engage and con- 3 fine therein a rope wound directly on said drum surface whereby the rope must follow the groove and is, therefore, forced axially over said surface,
an aperture in one end of the housing in alignment with the corresponding end of the helical groove to permit rope to be entered into the groove and fed around the drum following the groove,
an aperture in the other end of the housing in alignment with the other end of the helical groove to permit egress of the rope from the housing.
2. A device according to claim 1 including a pinch roller projecting through the housing and fixed in position close enough to the drum so as to grip the rope between the pinch roller and the drum.
3. A device according to claim 2 in which the pinch roller axis is parallel to the axis of the drum and has an axial length generally corresponding to that of the drum whereby the pinch roller engages the rope along the length of the drum.
4. A device according to claim 3 including means driving the pinch roller at the same peripheral speed as the drum.
5. A device according to claim 2 including a roller projecting through the housing in proximity to the point where the rope egresses from the housing to engage the rope adjacent the point of egress and hold it firmly against the drum.
6. A device according to claim 5 including means driving the pinch roller at the same peripheral speed as the drum.
7. A device according to claim 6 in which the pinch roller axis is parallel to the axis of the drum and has an axial length generally corresponding to that of the drum whereby the pinch roller engages the rope along the length of the drum.
" *zgw r U1 ;1' 11;1) STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,343,094. Dated October 22, 1974 lnvento Robert H. Watts It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
The address of the Inventor should read 57-60 Beech Grove Lane, Cincinnati, Ohio 45238 Sig'riedand sealed this 21st day of January 1975.
(SEAL) Attest:
'MCCOY M. GIBSON JR. C. MARSHALL DANN Attesting Officer Commissioner of Patents
Claims (7)
1. A traction device comprising: a drum having a generally cylindrical surface, means for rotating the drum in either direction, a generally cylindrical housing enclosing the drum and having an internal helical groove positioned close enough to the drum so as to engage and confine therein a rope wound directly on said drum surfaCe whereby the rope must follow the groove and is, therefore, forced axially over said surface, an aperture in one end of the housing in alignment with the corresponding end of the helical groove to permit rope to be entered into the groove and fed around the drum following the groove, an aperture in the other end of the housing in alignment with the other end of the helical groove to permit egress of the rope from the housing.
2. A device according to claim 1 including a pinch roller projecting through the housing and fixed in position close enough to the drum so as to grip the rope between the pinch roller and the drum.
3. A device according to claim 2 in which the pinch roller axis is parallel to the axis of the drum and has an axial length generally corresponding to that of the drum whereby the pinch roller engages the rope along the length of the drum.
4. A device according to claim 3 including means driving the pinch roller at the same peripheral speed as the drum.
5. A device according to claim 2 including a roller projecting through the housing in proximity to the point where the rope egresses from the housing to engage the rope adjacent the point of egress and hold it firmly against the drum.
6. A device according to claim 5 including means driving the pinch roller at the same peripheral speed as the drum.
7. A device according to claim 6 in which the pinch roller axis is parallel to the axis of the drum and has an axial length generally corresponding to that of the drum whereby the pinch roller engages the rope along the length of the drum.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00321294A US3843094A (en) | 1973-01-05 | 1973-01-05 | Traction device |
JP14460273A JPS572639B2 (en) | 1973-01-05 | 1973-12-27 | |
DE19732364919 DE2364919C3 (en) | 1973-01-05 | 1973-12-28 | Pulling device with helical rope guide |
FR7346981A FR2213224B1 (en) | 1973-01-05 | 1973-12-28 | |
GB6026173A GB1398069A (en) | 1973-01-05 | 1973-12-31 | Rope traction devices |
CA189,438A CA970761A (en) | 1973-01-05 | 1974-01-04 | Traction device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00321294A US3843094A (en) | 1973-01-05 | 1973-01-05 | Traction device |
Publications (1)
Publication Number | Publication Date |
---|---|
US3843094A true US3843094A (en) | 1974-10-22 |
Family
ID=23250008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00321294A Expired - Lifetime US3843094A (en) | 1973-01-05 | 1973-01-05 | Traction device |
Country Status (5)
Country | Link |
---|---|
US (1) | US3843094A (en) |
JP (1) | JPS572639B2 (en) |
CA (1) | CA970761A (en) |
FR (1) | FR2213224B1 (en) |
GB (1) | GB1398069A (en) |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4087060A (en) * | 1976-10-12 | 1978-05-02 | Breeze Corporations, Inc. | Self level wind cable storage reel |
US4107912A (en) * | 1977-05-03 | 1978-08-22 | Pockman William W | Metering capstan |
US4721285A (en) * | 1986-09-23 | 1988-01-26 | Mcmichael Robert G | Cable drive system including apparatus for controlling normal force applied to cable |
US5183218A (en) * | 1990-03-08 | 1993-02-02 | Migen S.R.L. | Device for the operation of hoses containing a liquid under very high pressure |
US5280879A (en) * | 1991-12-31 | 1994-01-25 | Kreuter Kenneth G | Capstan winch with fixed internally grooved sleeve |
US5358190A (en) * | 1990-07-05 | 1994-10-25 | Manfred Fladung Gmbh | Device for stowing away thick cables |
EP1564178A2 (en) * | 2004-02-14 | 2005-08-17 | Rheinmetall Landsysteme GmbH | Lifting spindle |
US20060273293A1 (en) * | 2005-04-20 | 2006-12-07 | Atlas Devices Llc | Powered rope ascender and portable rope pulling device |
US20060278861A1 (en) * | 2005-06-14 | 2006-12-14 | Wintech International Inc. | Barge Connector Winch |
US20070194290A1 (en) * | 2005-04-20 | 2007-08-23 | Atlas Devices Llc | Device to enable rope pulling functionality using a rotational power source |
US20080035423A1 (en) * | 2006-08-08 | 2008-02-14 | D B Industries, Inc. | Retractable horizontal lifeline assembly |
US20080041661A1 (en) * | 2006-08-08 | 2008-02-21 | D B Industries, Inc. | Retractable horizontal lifeline assembly |
US20080048162A1 (en) * | 2006-08-01 | 2008-02-28 | W. W. Patterson Company | Single Stack Manual Marine Winch |
US20080061101A1 (en) * | 2006-09-12 | 2008-03-13 | Baker Hughes Incorporated | Filamentous member injector and method for injecting filamentous members |
US20080061277A1 (en) * | 2006-03-21 | 2008-03-13 | W. W. Patterson Company | Marine Winch with Winch-Line Engaging Roller |
US20080128668A1 (en) * | 2006-11-14 | 2008-06-05 | Atlas Devices Llc | Multiple line powered rope ascender and portable hoist |
US20080203370A1 (en) * | 2005-04-20 | 2008-08-28 | Atlas Devices, Llc | Powered Rope Ascender and Portable Rope Pulling Device |
US7607644B1 (en) * | 2008-06-09 | 2009-10-27 | Acculift, Inc. | Boat lift assembly |
WO2009148414A1 (en) * | 2008-06-03 | 2009-12-10 | Tajfun Planina Proizvodnja Strojev, D.O.O. | Hydraulic device for driving and guiding of a longitudinal towing member, especially a pulley of a forestry winch |
US20100314594A1 (en) * | 2008-01-30 | 2010-12-16 | Tiong Bin Seow | Hoist |
US8517345B2 (en) * | 2010-08-03 | 2013-08-27 | United States Of America, As Represented By The Secretary Of The Navy | Shipboard winch with guide vanes |
US20150284225A1 (en) * | 2014-04-04 | 2015-10-08 | David R. Hall | Synchronized Motorized Lifting Devices for Lifting Shared Loads |
US20150284230A1 (en) * | 2014-04-04 | 2015-10-08 | David R. Hall | Locking Mechanism for Motorized Lifting Device |
US9181069B2 (en) * | 2014-01-10 | 2015-11-10 | Pan I-Te | Fairlead for crane |
US20170240392A1 (en) * | 2014-10-20 | 2017-08-24 | Konecranes Global Corporation | Rope guide of rope drum in crane |
CN108069351A (en) * | 2018-01-08 | 2018-05-25 | 秦皇岛点知汇科技有限公司 | The simultaneously anti-disorder cable winch of compact form is forced between a kind of rope |
US9988250B2 (en) * | 2016-03-02 | 2018-06-05 | David R. Hall | Drum for a motorized lifting/pulling device |
US10106381B2 (en) * | 2016-10-12 | 2018-10-23 | Brian Douglas Lockwood | Portable endless line puller |
US10112809B2 (en) * | 2016-02-25 | 2018-10-30 | Hall Labs Llc | Reliable spooling for a motorized lifting/pulling device |
US10239736B1 (en) * | 2015-06-22 | 2019-03-26 | Link-Belt Cranes, L.P., Lllp | Rope retainer for a boom |
CN114069961A (en) * | 2021-12-22 | 2022-02-18 | 新乡玉镜智能科技有限公司 | Driving power assisting device of outer rotor motor |
US20220324683A1 (en) * | 2021-04-12 | 2022-10-13 | Hall Labs Llc | Line Tensioner |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS561942U (en) * | 1979-06-20 | 1981-01-09 | ||
JPS5746595U (en) * | 1980-09-01 | 1982-03-15 | ||
GB8804282D0 (en) * | 1988-02-24 | 1988-03-23 | Arnold P F J | Guide device |
NL9301178A (en) * | 1993-07-05 | 1995-02-01 | Meissner Engineering B V | Winch. |
DE9416984U1 (en) * | 1994-10-21 | 1996-02-22 | Rumpp Gerhard | Winch |
FR2726321B1 (en) * | 1994-11-02 | 1996-11-29 | Inst Francais Du Petrole | DEVICE FOR STORING AND HANDLING A ROD OF COMPOSITE MATERIAL |
JP2002220190A (en) * | 2001-01-24 | 2002-08-06 | Hitachi Zosen Corp | Winch device |
-
1973
- 1973-01-05 US US00321294A patent/US3843094A/en not_active Expired - Lifetime
- 1973-12-27 JP JP14460273A patent/JPS572639B2/ja not_active Expired
- 1973-12-28 FR FR7346981A patent/FR2213224B1/fr not_active Expired
- 1973-12-31 GB GB6026173A patent/GB1398069A/en not_active Expired
-
1974
- 1974-01-04 CA CA189,438A patent/CA970761A/en not_active Expired
Cited By (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4087060A (en) * | 1976-10-12 | 1978-05-02 | Breeze Corporations, Inc. | Self level wind cable storage reel |
US4107912A (en) * | 1977-05-03 | 1978-08-22 | Pockman William W | Metering capstan |
US4721285A (en) * | 1986-09-23 | 1988-01-26 | Mcmichael Robert G | Cable drive system including apparatus for controlling normal force applied to cable |
US5183218A (en) * | 1990-03-08 | 1993-02-02 | Migen S.R.L. | Device for the operation of hoses containing a liquid under very high pressure |
US5358190A (en) * | 1990-07-05 | 1994-10-25 | Manfred Fladung Gmbh | Device for stowing away thick cables |
US5280879A (en) * | 1991-12-31 | 1994-01-25 | Kreuter Kenneth G | Capstan winch with fixed internally grooved sleeve |
EP1564178A2 (en) * | 2004-02-14 | 2005-08-17 | Rheinmetall Landsysteme GmbH | Lifting spindle |
EP1564178A3 (en) * | 2004-02-14 | 2005-09-21 | Rheinmetall Landsysteme GmbH | Lifting spindle |
US20060273293A1 (en) * | 2005-04-20 | 2006-12-07 | Atlas Devices Llc | Powered rope ascender and portable rope pulling device |
US20070194290A1 (en) * | 2005-04-20 | 2007-08-23 | Atlas Devices Llc | Device to enable rope pulling functionality using a rotational power source |
US7261278B2 (en) * | 2005-04-20 | 2007-08-28 | Atlas Devices, Llc | Powered rope ascender and portable rope pulling device |
US20080017838A1 (en) * | 2005-04-20 | 2008-01-24 | Atlas Devices, Llc | Powered rope ascender and portable rope pulling device |
US7934698B2 (en) | 2005-04-20 | 2011-05-03 | Atlas Devices, Llc | Powered rope ascender and portable rope pulling device |
US20080203370A1 (en) * | 2005-04-20 | 2008-08-28 | Atlas Devices, Llc | Powered Rope Ascender and Portable Rope Pulling Device |
US7581715B2 (en) | 2005-04-20 | 2009-09-01 | Atlas Devices, Llc | Powered rope ascender and portable rope pulling device |
US20060278861A1 (en) * | 2005-06-14 | 2006-12-14 | Wintech International Inc. | Barge Connector Winch |
US7478795B2 (en) | 2006-03-21 | 2009-01-20 | W.W. Patterson Company | Marine winch with winch-line engaging roller |
US20080061277A1 (en) * | 2006-03-21 | 2008-03-13 | W. W. Patterson Company | Marine Winch with Winch-Line Engaging Roller |
US7543800B2 (en) | 2006-08-01 | 2009-06-09 | W.W. Patterson Company | Single stack manual marine winch |
US20080048162A1 (en) * | 2006-08-01 | 2008-02-28 | W. W. Patterson Company | Single Stack Manual Marine Winch |
US8739929B2 (en) | 2006-08-08 | 2014-06-03 | D B Industries, Llc | Retractable horizontal lifeline assembly |
US20080041661A1 (en) * | 2006-08-08 | 2008-02-21 | D B Industries, Inc. | Retractable horizontal lifeline assembly |
US20080035423A1 (en) * | 2006-08-08 | 2008-02-14 | D B Industries, Inc. | Retractable horizontal lifeline assembly |
US8528694B2 (en) | 2006-08-08 | 2013-09-10 | D B Industries, Llc | Retractable horizontal lifeline assembly |
US20080061101A1 (en) * | 2006-09-12 | 2008-03-13 | Baker Hughes Incorporated | Filamentous member injector and method for injecting filamentous members |
US20080128668A1 (en) * | 2006-11-14 | 2008-06-05 | Atlas Devices Llc | Multiple line powered rope ascender and portable hoist |
AU2008221411B2 (en) * | 2007-02-27 | 2014-12-18 | Atlas Devices Llc | Powered rope ascender and portable rope pulling device |
US9382103B2 (en) * | 2008-01-30 | 2016-07-05 | Tiong Bin Seow | Hoist |
US20100314594A1 (en) * | 2008-01-30 | 2010-12-16 | Tiong Bin Seow | Hoist |
WO2009148414A1 (en) * | 2008-06-03 | 2009-12-10 | Tajfun Planina Proizvodnja Strojev, D.O.O. | Hydraulic device for driving and guiding of a longitudinal towing member, especially a pulley of a forestry winch |
US7607644B1 (en) * | 2008-06-09 | 2009-10-27 | Acculift, Inc. | Boat lift assembly |
US8517345B2 (en) * | 2010-08-03 | 2013-08-27 | United States Of America, As Represented By The Secretary Of The Navy | Shipboard winch with guide vanes |
US9181069B2 (en) * | 2014-01-10 | 2015-11-10 | Pan I-Te | Fairlead for crane |
US20150284225A1 (en) * | 2014-04-04 | 2015-10-08 | David R. Hall | Synchronized Motorized Lifting Devices for Lifting Shared Loads |
US20150284230A1 (en) * | 2014-04-04 | 2015-10-08 | David R. Hall | Locking Mechanism for Motorized Lifting Device |
US9624076B2 (en) * | 2014-04-04 | 2017-04-18 | David R. Hall | Synchronized motorized lifting devices for lifting shared loads |
US9637360B2 (en) * | 2014-04-04 | 2017-05-02 | David R. Hall | Locking mechanism for motorized lifting device |
US20170240392A1 (en) * | 2014-10-20 | 2017-08-24 | Konecranes Global Corporation | Rope guide of rope drum in crane |
US10569996B2 (en) * | 2014-10-20 | 2020-02-25 | Konecranes Global Corporation | Rope guide of rope drum in crane |
US10239736B1 (en) * | 2015-06-22 | 2019-03-26 | Link-Belt Cranes, L.P., Lllp | Rope retainer for a boom |
CN109476468A (en) * | 2016-02-25 | 2019-03-15 | 霍尔实验室有限责任公司 | The reliable winding of lifting/traction device for motorization |
US10112809B2 (en) * | 2016-02-25 | 2018-10-30 | Hall Labs Llc | Reliable spooling for a motorized lifting/pulling device |
US9988250B2 (en) * | 2016-03-02 | 2018-06-05 | David R. Hall | Drum for a motorized lifting/pulling device |
US10106381B2 (en) * | 2016-10-12 | 2018-10-23 | Brian Douglas Lockwood | Portable endless line puller |
CN108069351A (en) * | 2018-01-08 | 2018-05-25 | 秦皇岛点知汇科技有限公司 | The simultaneously anti-disorder cable winch of compact form is forced between a kind of rope |
US20220324683A1 (en) * | 2021-04-12 | 2022-10-13 | Hall Labs Llc | Line Tensioner |
CN114069961A (en) * | 2021-12-22 | 2022-02-18 | 新乡玉镜智能科技有限公司 | Driving power assisting device of outer rotor motor |
CN114069961B (en) * | 2021-12-22 | 2022-04-12 | 新乡玉镜智能科技有限公司 | Driving power assisting device of outer rotor motor |
Also Published As
Publication number | Publication date |
---|---|
FR2213224B1 (en) | 1978-01-06 |
CA970761A (en) | 1975-07-08 |
DE2364919A1 (en) | 1974-07-18 |
GB1398069A (en) | 1975-06-18 |
DE2364919B2 (en) | 1976-01-22 |
JPS572639B2 (en) | 1982-01-18 |
JPS49116759A (en) | 1974-11-07 |
FR2213224A1 (en) | 1974-08-02 |
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AS | Assignment |
Owner name: FIGGIE INTERNATIONAL INC. Free format text: CHANGE OF NAME;ASSIGNOR:A-T-O INC.;REEL/FRAME:003866/0442 Effective date: 19810623 |
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AS | Assignment |
Owner name: FIGGIE INTERNATIONAL INC. Free format text: MERGER;ASSIGNOR:FIGGIE INTERNATIONAL INC., (MERGED INTO) FIGGIE INTERNATIONAL HOLDINGS INC. (CHANGED TO);REEL/FRAME:004767/0822 Effective date: 19870323 |