GB1289883A - - Google Patents

Info

Publication number
GB1289883A
GB1289883A GB1289883DA GB1289883A GB 1289883 A GB1289883 A GB 1289883A GB 1289883D A GB1289883D A GB 1289883DA GB 1289883 A GB1289883 A GB 1289883A
Authority
GB
United Kingdom
Prior art keywords
pressure
valve
duct
piston
spring
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
Application number
Other languages
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of GB1289883A publication Critical patent/GB1289883A/en
Expired legal-status Critical Current

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)
  • Types And Forms Of Lifts (AREA)
  • Fluid-Pressure Circuits (AREA)
GB1289883D 1969-04-25 1970-04-24 Expired GB1289883A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH633869A CH487063A (de) 1969-04-25 1969-04-25 Steuerventilblock für hydraulisch betriebene Aufzüge

Publications (1)

Publication Number Publication Date
GB1289883A true GB1289883A (enrdf_load_stackoverflow) 1972-09-20

Family

ID=4307975

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1289883D Expired GB1289883A (enrdf_load_stackoverflow) 1969-04-25 1970-04-24

Country Status (6)

Country Link
US (1) US3687011A (enrdf_load_stackoverflow)
AT (1) AT302573B (enrdf_load_stackoverflow)
CH (1) CH487063A (enrdf_load_stackoverflow)
DE (1) DE2018512C3 (enrdf_load_stackoverflow)
GB (1) GB1289883A (enrdf_load_stackoverflow)
SE (1) SE367172B (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3434014A1 (de) * 1984-09-15 1986-03-20 Beringer-Hydraulik GmbH, Neuheim, Zug Hydraulische steuerung
FI71710C (fi) * 1985-04-30 1987-02-09 Pentti Rita Elektriskt styrd ventilanordning.
US4694935A (en) * 1986-10-17 1987-09-22 Cemco, Inc. Self-adjusting control valve for elevators
FI874147A0 (fi) * 1987-09-22 1987-09-22 Pentti Rita Ventilanordning.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737197A (en) * 1950-05-31 1956-03-06 Dover Corp Hydraulic control apparatus
US3120880A (en) * 1960-12-23 1964-02-11 Dover Corp Hydraulic drive and control for elevators
DE1268801B (de) * 1964-02-08 1968-05-22 Erich Herion Druckmittelsteuerung eines Aufzugs
US3438398A (en) * 1967-04-10 1969-04-15 Esco Elevators Inc Hydraulic elevator control systems
US3508468A (en) * 1968-04-24 1970-04-28 Armor Elevator Co Inc Hydraulic elevator control valve

Also Published As

Publication number Publication date
CH487063A (de) 1970-03-15
DE2018512A1 (de) 1970-11-12
SE367172B (enrdf_load_stackoverflow) 1974-05-20
DE2018512B2 (de) 1980-06-19
US3687011A (en) 1972-08-29
AT302573B (de) 1972-10-25
DE2018512C3 (de) 1981-02-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee