GB2167913B - Hoists and hoisting systems - Google Patents

Hoists and hoisting systems

Info

Publication number
GB2167913B
GB2167913B GB08524090A GB8524090A GB2167913B GB 2167913 B GB2167913 B GB 2167913B GB 08524090 A GB08524090 A GB 08524090A GB 8524090 A GB8524090 A GB 8524090A GB 2167913 B GB2167913 B GB 2167913B
Authority
GB
United Kingdom
Prior art keywords
hoists
hoisting systems
hoisting
systems
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
GB08524090A
Other versions
GB2167913A (en
GB8524090D0 (en
Inventor
Paul Ernest Victor Arnold
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DEVITEC Ltd
Original Assignee
DEVITEC Ltd
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 by DEVITEC Ltd filed Critical DEVITEC Ltd
Priority to GB08524090A priority Critical patent/GB2167913B/en
Publication of GB8524090D0 publication Critical patent/GB8524090D0/en
Publication of GB2167913A publication Critical patent/GB2167913A/en
Application granted granted Critical
Publication of GB2167913B publication Critical patent/GB2167913B/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/12—Lifts or other hoisting devices on ladders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/16—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/22—Control systems or devices for electric drives
    • B66C13/23—Circuits for controlling the lowering of the load
    • B66C13/24—Circuits for controlling the lowering of the load by dc motors
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/02—Details
    • H02P1/022—Security devices, e.g. correct phase sequencing
    • H02P1/026—Means for delayed starting
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/18—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual dc motor
    • H02P1/22—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual dc motor in either direction of rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
GB08524090A 1982-03-25 1985-09-30 Hoists and hoisting systems Expired GB2167913B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08524090A GB2167913B (en) 1982-03-25 1985-09-30 Hoists and hoisting systems

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB8208741 1982-03-25
GB8220881 1982-07-19
GB08524090A GB2167913B (en) 1982-03-25 1985-09-30 Hoists and hoisting systems

Publications (3)

Publication Number Publication Date
GB8524090D0 GB8524090D0 (en) 1985-11-06
GB2167913A GB2167913A (en) 1986-06-04
GB2167913B true GB2167913B (en) 1987-02-11

Family

ID=27261532

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08524090A Expired GB2167913B (en) 1982-03-25 1985-09-30 Hoists and hoisting systems

Country Status (1)

Country Link
GB (1) GB2167913B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004004117U1 (en) 2004-03-15 2004-05-13 Greifzug Hebezeugbau Gmbh Climbing aid for ladders

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1192874A (en) * 1968-05-13 1970-05-20 English Electric Co Ltd D.C. Crane Motor Control Systems
CA941891A (en) * 1971-01-27 1974-02-12 Beckman Instruments D.c. motor control circuit
US3746954A (en) * 1971-09-17 1973-07-17 Sqare D Co Adjustable voltage thyristor-controlled hoist control for a dc motor
GB1422632A (en) * 1972-03-14 1976-01-28 British Railways Board Dc chopper circuits
US3803471A (en) * 1972-12-22 1974-04-09 Allis Chalmers Variable time ratio control having power switch which does not require current equalizing means
JPS5063434A (en) * 1973-10-09 1975-05-29
CH640090A5 (en) * 1980-11-14 1983-12-15 Mefina Sa CONTROL DEVICE FOR A DIRECT CURRENT MOTOR.

Also Published As

Publication number Publication date
GB2167913A (en) 1986-06-04
GB8524090D0 (en) 1985-11-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee