IT948807B - DEVICE REGULATOR OF THE ASCENT GEAR FOR HYDRAULIC LIFTS - Google Patents
DEVICE REGULATOR OF THE ASCENT GEAR FOR HYDRAULIC LIFTSInfo
- Publication number
- IT948807B IT948807B IT6704172A IT6704172A IT948807B IT 948807 B IT948807 B IT 948807B IT 6704172 A IT6704172 A IT 6704172A IT 6704172 A IT6704172 A IT 6704172A IT 948807 B IT948807 B IT 948807B
- Authority
- IT
- Italy
- Prior art keywords
- ascent
- gear
- hydraulic lifts
- device regulator
- regulator
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
- B66B1/40—Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings
- B66B1/405—Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings for hydraulically actuated elevators
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Fluid-Pressure Circuits (AREA)
- Types And Forms Of Lifts (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712108202 DE2108202C3 (en) | 1971-02-20 | 1971-02-20 | Lift travel control device for a hydraulic elevator |
Publications (1)
Publication Number | Publication Date |
---|---|
IT948807B true IT948807B (en) | 1973-06-11 |
Family
ID=5799366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT6704172A IT948807B (en) | 1971-02-20 | 1972-01-07 | DEVICE REGULATOR OF THE ASCENT GEAR FOR HYDRAULIC LIFTS |
Country Status (5)
Country | Link |
---|---|
CH (1) | CH541506A (en) |
DE (1) | DE2108202C3 (en) |
FR (1) | FR2125526B1 (en) |
GB (1) | GB1378345A (en) |
IT (1) | IT948807B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4276810A (en) * | 1972-11-08 | 1981-07-07 | Control Concepts, Inc. | Programmed valve system used for positioning control |
DE2405852C2 (en) * | 1974-02-07 | 1983-11-17 | Blain, Roy William, 7100 Heilbronn | Hydraulic elevator control valve |
US4011888A (en) * | 1976-03-12 | 1977-03-15 | Elevator Equipment Co. | Unitary elevator up level control valve |
US4637495A (en) * | 1985-10-09 | 1987-01-20 | Blain Roy W | Pressure/viscosity compensated up travel for a hydraulic elevator |
US4694935A (en) * | 1986-10-17 | 1987-09-22 | Cemco, Inc. | Self-adjusting control valve for elevators |
US4800990A (en) * | 1987-05-07 | 1989-01-31 | Blain Roy W | Three speed valve control for high performance hydraulic elevator |
DE4007804A1 (en) * | 1990-03-12 | 1991-09-19 | Kloeckner Humboldt Deutz Ag | Control device for agricultural tool hydraulic hoist - uses controlled non-return valve connected to hydraulic line for hydraulic lifting cylinder |
US5232070A (en) * | 1991-08-15 | 1993-08-03 | Blain Roy W | Up leveling control system for small elevators |
US5374794A (en) * | 1993-12-09 | 1994-12-20 | United States Elevator Corp. | Elevator control valve assembly |
US5593004A (en) * | 1995-03-28 | 1997-01-14 | Blain Roy W | Servo control for hydraulic elevator |
-
1971
- 1971-02-20 DE DE19712108202 patent/DE2108202C3/en not_active Expired
-
1972
- 1972-01-07 IT IT6704172A patent/IT948807B/en active
- 1972-02-16 FR FR7205242A patent/FR2125526B1/fr not_active Expired
- 1972-02-16 GB GB713472A patent/GB1378345A/en not_active Expired
- 1972-02-16 CH CH224472A patent/CH541506A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE2108202B2 (en) | 1979-03-29 |
DE2108202A1 (en) | 1972-08-31 |
FR2125526B1 (en) | 1976-10-29 |
DE2108202C3 (en) | 1979-11-22 |
GB1378345A (en) | 1974-12-27 |
CH541506A (en) | 1973-09-15 |
FR2125526A1 (en) | 1972-09-29 |
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