GB1468521A - Control apparatus - Google Patents

Control apparatus

Info

Publication number
GB1468521A
GB1468521A GB785573A GB785573A GB1468521A GB 1468521 A GB1468521 A GB 1468521A GB 785573 A GB785573 A GB 785573A GB 785573 A GB785573 A GB 785573A GB 1468521 A GB1468521 A GB 1468521A
Authority
GB
United Kingdom
Prior art keywords
pressure
contacts
diaphragm
solenoid
closed
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
GB785573A
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.)
Herga Electric Ltd
Original Assignee
Herga Electric 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 Herga Electric Ltd filed Critical Herga Electric Ltd
Priority to GB785573A priority Critical patent/GB1468521A/en
Publication of GB1468521A publication Critical patent/GB1468521A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/24—Power arrangements internal to the switch for operating the driving mechanism using pneumatic or hydraulic actuator
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/42—Detection using safety edges
    • E05F15/47—Detection using safety edges responsive to changes in fluid pressure
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2400/00—Electronic control; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/30—Electronic control of motors
    • E05Y2400/40—Control units therefore
    • E05Y2400/41—Control units therefore for multiple motors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/20—Combinations of elements
    • E05Y2800/21—Combinations of elements of identical elements, e.g. of identical compression springs

Abstract

1468521 Fluid-pressure actuators; moving air HERGA ELECTRIC Ltd 3 April 1974 [16 Feb 1973 16 July 1973] 7855/73 and 33803/73 Headings F1D and F1N A control system 14, Fig. 1, for a sliding door 2, which has a tubular member 6 along its leading edge, comprises a solenoid 22, Fig. 7, and a relay 24 which are energized when a push-button 26 is depressed. The solenoid causes contacts 18c, 18b to be closed and the relay holds contacts 24a closed so that a door closing motor 4 remains operative when the button 26 is released. Energization of the solenoid 22, Fig. 4, causes a valve 36, Fig. 6, to move up and close a bleed hole 30, which when open allows for expansion and contraction of the air in the system caused by changes in temperature, and also extends bellows 20, Fig. 4. This lowers the pressure in the system and causes a diaphragm 18d to close contacts 18c, 18b. When the tube 6 meets an obstruction a pressure rise is produced in the system which raises the diaphragm 18d, thus opening the contacts 18c, 18b and arresting the door. Fig. 9 shows a "master cylinder" device in which depression of a plunger 122 closes a bleed orifice 120 and compresses a diaphragm 114 to produce an increase in pressure which is transmitted through a line 106 to a slave device. Fig. 11 shows an alternative construction in which a bleed 174 is closed when a member 162 is depressed by gripping it. Pressure is thus increased in a chamber 158. A notch 178 co-operates with a detent to hold the member 162 in the depressed condition.
GB785573A 1974-04-03 1974-04-03 Control apparatus Expired GB1468521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB785573A GB1468521A (en) 1974-04-03 1974-04-03 Control apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB785573A GB1468521A (en) 1974-04-03 1974-04-03 Control apparatus

Publications (1)

Publication Number Publication Date
GB1468521A true GB1468521A (en) 1977-03-30

Family

ID=9841099

Family Applications (1)

Application Number Title Priority Date Filing Date
GB785573A Expired GB1468521A (en) 1974-04-03 1974-04-03 Control apparatus

Country Status (1)

Country Link
GB (1) GB1468521A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092744A2 (en) * 1982-04-22 1983-11-02 Bircher AG Electropneumatic device for the fuse protection of a danger area at a machine or installation in operation
EP0217617A2 (en) * 1985-09-27 1987-04-08 Bestquint Limited Remotely operable arrangements
US4850111A (en) * 1987-09-29 1989-07-25 Food Industry Equipment International, Inc. Pneumatic control system for meat trimming knife
US4922613A (en) * 1987-09-29 1990-05-08 Food Industry Equipment International, Inc. Pneumatic control system for meat trimming knife
US4993502A (en) * 1987-09-29 1991-02-19 Food Industry Equipment International, Inc. Pneumatic control system for meat trimming knife

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092744A2 (en) * 1982-04-22 1983-11-02 Bircher AG Electropneumatic device for the fuse protection of a danger area at a machine or installation in operation
EP0092744A3 (en) * 1982-04-22 1985-10-16 Bircher AG Electropneumatic device for the fuse protection of a danger area at a machine or installation in operation
EP0217617A2 (en) * 1985-09-27 1987-04-08 Bestquint Limited Remotely operable arrangements
EP0217617A3 (en) * 1985-09-27 1988-03-30 Bestquint Limited Remotely operable arrangements
US4754107A (en) * 1985-09-27 1988-06-28 Bestquint Ltd. Remotely operable master and slave switch
US4850111A (en) * 1987-09-29 1989-07-25 Food Industry Equipment International, Inc. Pneumatic control system for meat trimming knife
US4922613A (en) * 1987-09-29 1990-05-08 Food Industry Equipment International, Inc. Pneumatic control system for meat trimming knife
US4993502A (en) * 1987-09-29 1991-02-19 Food Industry Equipment International, Inc. Pneumatic control system for meat trimming knife

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19940402