GB1345725A - Control system for a balancing hoist - Google Patents
Control system for a balancing hoistInfo
- Publication number
- GB1345725A GB1345725A GB1753671A GB1753671A GB1345725A GB 1345725 A GB1345725 A GB 1345725A GB 1753671 A GB1753671 A GB 1753671A GB 1753671 A GB1753671 A GB 1753671A GB 1345725 A GB1345725 A GB 1345725A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- chamber
- load
- hoist
- fluid
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/18—Power-operated hoists
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/02—Hoists or accessories for hoists
- B66D2700/026—Pulleys, sheaves, pulley blocks or their mounting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Jet Pumps And Other Pumps (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Centrifugal Separators (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Hydraulic Turbines (AREA)
Abstract
1345725 Hoists GARDNER-DENVER CO 27 May 1971 [18 Nov 1970] 17536/71 Heading B8B [Also in Division F2] A control system for a fluid operated balancing hoist 10 having a pressure fluid operated motor including an expansible chamber 36 drivably connected to a load rope drum 26, comprises a pressure regulator 84 between the fluid supply source and the chamber 36 and including means 85, 160 for sensing the pressure in the chamber and adjusting the regulator 84 to maintain a pressure value, and locking means 90, 172 operable to lock the sensing means at a predetermined pressure setting corresponding to a balanced condition of the load connected to the hoist. To raise a load 32, lever 120 on a depending controller 76 is depressed to operate valves causing air to be supplied to the chamber 36 to wind up the rope 28, an adjustable pressure sensing valve in this supply line restricting the fluid flow to the chamber if a low pressure (hence low or no load on the hoist) exists, or unrestricting the flow if a load is sensed. If the load is to be balanced, the lever 120 is further depressed to operate valves causing the locking means 90, 172 to be fluid pressure released against spring bias so that the sensing means 160, 85 may be displaceable by pressure from the chamber 36 acting on the end face 166 of the sensing means. This displacement is opposed by springs 86 and 150 supporting therebetween a valve spool 136. When the hoisting distance is reached, the lever 120 is released whereupon the sensor 160, 85 is locked by the means 90, 172 in a position corresponding to the prevailing pressure in the chamber 36. The chamber pressure is now communicated to the end 148 of the valve spool 136, this line being vented during the balancing and the spool 136 is moved into its balance position shown, where the port 130 leading to the chamber 36 is isolated from both ports 128, 132 which may be coupled to pressure and exhaust respectively. Thereafter, any manual raising or lowering of the load changes the pressure in the hoist chamber 36 whereupon the spool 136 moves to appropriately connect the port 130 to air supply or exhaust ports 128, 132 to again balance the load in its new position. Further valves are provided on the controller 76 for a restricted venting of the chamber 36 to permit gravitational lowering of the load and for an unrestricted venting for rapid pay out of slack cable from the hoist.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9049970A | 1970-11-18 | 1970-11-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1345725A true GB1345725A (en) | 1974-02-06 |
Family
ID=22223042
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1753671A Expired GB1345725A (en) | 1970-11-18 | 1971-05-27 | Control system for a balancing hoist |
GB4035272A Expired GB1345726A (en) | 1970-11-18 | 1971-05-27 | Control system for a fluid operated balancing hoist |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4035272A Expired GB1345726A (en) | 1970-11-18 | 1971-05-27 | Control system for a fluid operated balancing hoist |
Country Status (9)
Country | Link |
---|---|
US (1) | US3758079A (en) |
JP (1) | JPS513992B1 (en) |
AU (1) | AU3006171A (en) |
BE (1) | BE775092A (en) |
CA (1) | CA940523A (en) |
FR (1) | FR2115170B1 (en) |
GB (2) | GB1345725A (en) |
SE (1) | SE382040B (en) |
ZA (1) | ZA713505B (en) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3880393A (en) * | 1973-06-04 | 1975-04-29 | Conco Inc | Load balancer with balance override control |
US4004779A (en) * | 1975-05-05 | 1977-01-25 | Caterpillar Tractor Co. | Winch and fluid control system therefor |
US4462571A (en) * | 1982-02-24 | 1984-07-31 | D. W. Zimmerman Mfg., Inc. | Fluid-operated, load-handling apparatus |
JPS59102794A (en) * | 1982-12-01 | 1984-06-13 | 日本ニユ−マチツク工業株式会社 | Controller for air hoist |
JPS59106727U (en) * | 1983-01-08 | 1984-07-18 | トヨタ自動車株式会社 | Vehicle gear shift mechanism |
US4500074A (en) * | 1983-03-23 | 1985-02-19 | D. W. Zimmerman Mfg., Inc. | Fluid-operated apparatus for handling and lifting loads |
US4807767A (en) * | 1983-12-20 | 1989-02-28 | Grumman Aerospace Corporation | Self balancing electric hoist |
DE19633837C2 (en) * | 1996-08-22 | 1998-07-09 | Stahl R Foerdertech Gmbh | Cable with an elastic frame |
US6547220B2 (en) * | 2000-01-31 | 2003-04-15 | Wilmington Research And Development Corporation | Open loop control with velocity threshold for pneumatic hoist |
US7137618B2 (en) * | 2005-03-25 | 2006-11-21 | Koenecke Robert F | Power-assisted cable-pulling device |
CA2619987C (en) * | 2007-02-02 | 2014-05-27 | Givens Engineering Inc. | Passive-active end-effector and pneumatic manipulator equipped therewith |
US8105008B2 (en) * | 2007-07-10 | 2012-01-31 | Raymond David Givens | Pneumatic multi-weight balancing device |
CN103097277B (en) * | 2010-07-02 | 2015-08-12 | 株式会社五合 | Handling device and possess the mobile device of this handling device |
FR2981922B1 (en) * | 2011-10-27 | 2013-11-29 | Eurocopter France | MEANS FOR MONITORING A LIFTING DEVICE, LIFTING APPARATUS AND AIRCRAFT |
US9758340B1 (en) * | 2013-10-08 | 2017-09-12 | Southwire Company, Llc | Capstan and system of capstans for use in spooling multiple conductors onto a single reel |
US20150307332A1 (en) * | 2014-04-28 | 2015-10-29 | Comeup Industries Inc. | Power Winch Display Panel |
WO2021150893A1 (en) * | 2020-01-24 | 2021-07-29 | Milwaukee Electric Tool Corporation | Zero-gravity hoist control |
US11472682B2 (en) * | 2021-01-26 | 2022-10-18 | Honda Motor Co., Ltd. | Quick release hoist system |
SE544859C2 (en) * | 2021-03-19 | 2022-12-13 | Staccato Tech Ab | Improved pneumatic balancing system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3259532A (en) * | 1963-07-24 | 1966-07-05 | Reynolds Metals Co | Combustion system comprising sponge metal, liquid oxygen, and finely divided carbon |
US3260508A (en) * | 1963-10-14 | 1966-07-12 | Edgar R Powell | Balancing hoist |
US3286989A (en) * | 1965-10-19 | 1966-11-22 | Ingersoll Rand Co | Balancing hoist |
US3457837A (en) * | 1966-07-11 | 1969-07-29 | Zimmerman D W Mfg | Controller for pneumatically-operated hoists |
US3421737A (en) * | 1967-06-13 | 1969-01-14 | Ingersoll Rand Co | Balancing hoist |
US3537686A (en) * | 1968-05-31 | 1970-11-03 | Lorne J Mckendrick | Hoist and balancing apparatus |
-
1970
- 1970-11-18 US US00090499A patent/US3758079A/en not_active Expired - Lifetime
-
1971
- 1971-05-27 GB GB1753671A patent/GB1345725A/en not_active Expired
- 1971-05-27 GB GB4035272A patent/GB1345726A/en not_active Expired
- 1971-06-01 ZA ZA713505A patent/ZA713505B/en unknown
- 1971-06-07 CA CA114,962A patent/CA940523A/en not_active Expired
- 1971-06-16 AU AU30061/71A patent/AU3006171A/en not_active Expired
- 1971-08-26 SE SE7110815A patent/SE382040B/en unknown
- 1971-09-07 JP JP46069200A patent/JPS513992B1/ja active Pending
- 1971-10-26 FR FR7138505A patent/FR2115170B1/fr not_active Expired
- 1971-11-09 BE BE775092A patent/BE775092A/en unknown
Also Published As
Publication number | Publication date |
---|---|
SE382040B (en) | 1976-01-12 |
US3758079A (en) | 1973-09-11 |
FR2115170A1 (en) | 1972-07-07 |
AU3006171A (en) | 1972-12-21 |
FR2115170B1 (en) | 1975-02-07 |
JPS513992B1 (en) | 1976-02-07 |
DE2144734B2 (en) | 1977-05-18 |
CA940523A (en) | 1974-01-22 |
GB1345726A (en) | 1974-02-06 |
ZA713505B (en) | 1973-01-31 |
DE2144734A1 (en) | 1972-05-25 |
BE775092A (en) | 1972-03-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |