GB824722A - Power actuating means for swinging door - Google Patents

Power actuating means for swinging door

Info

Publication number
GB824722A
GB824722A GB1540257A GB1540257A GB824722A GB 824722 A GB824722 A GB 824722A GB 1540257 A GB1540257 A GB 1540257A GB 1540257 A GB1540257 A GB 1540257A GB 824722 A GB824722 A GB 824722A
Authority
GB
United Kingdom
Prior art keywords
piston
passage
dashpot
fluid
cylinder
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
GB1540257A
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.)
GEORGE WRAY HOULSBY JR
Original Assignee
GEORGE WRAY HOULSBY JR
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 GEORGE WRAY HOULSBY JR filed Critical GEORGE WRAY HOULSBY JR
Priority to GB1540257A priority Critical patent/GB824722A/en
Publication of GB824722A publication Critical patent/GB824722A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
    • E05F15/53—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

824,722. Dashpots. HOULSBY, G. -W. May 15, 1957, No. 15402/57. Class 108(3) [Also in Group XXV] , A dashpot for checking the closing action of a door actuating unit (see Group XXV) comprises a piston 42 and a cylinder 44, Figs. 1 and 3. The escape of the fluid from the dashpot chamber is effected initially through passages 102, 104 in the cylinder head 46, the passages communicating, by way of the adjustable needle valves 98, 100 respectively with a passage 87 leading to a sump. Further movement of the piston towards the block 126 causes the spring loaded pin 106, slidably carried along the axis of the piston, to engage and close the mouth of passage 102, restricting the outflow of fluid to that permitted by the passage 104 and its valve 100. A second dashpot, Fig. 4, provided for checking the door closing movement, comprises a cylinder 126, a piston 132 and high and low speed fluid escape orifices 144, 148 respectively. U.S.A. Specification 2,739,808 is referred to.
GB1540257A 1957-05-15 1957-05-15 Power actuating means for swinging door Expired GB824722A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1540257A GB824722A (en) 1957-05-15 1957-05-15 Power actuating means for swinging door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1540257A GB824722A (en) 1957-05-15 1957-05-15 Power actuating means for swinging door

Publications (1)

Publication Number Publication Date
GB824722A true GB824722A (en) 1959-12-02

Family

ID=10058515

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1540257A Expired GB824722A (en) 1957-05-15 1957-05-15 Power actuating means for swinging door

Country Status (1)

Country Link
GB (1) GB824722A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4040144A (en) * 1976-05-24 1977-08-09 Schlage Lock Company Door assister
EP0422710A1 (en) * 1989-10-13 1991-04-17 FAAC S.p.A. Bar gate device with symmetrical actuator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4040144A (en) * 1976-05-24 1977-08-09 Schlage Lock Company Door assister
EP0422710A1 (en) * 1989-10-13 1991-04-17 FAAC S.p.A. Bar gate device with symmetrical actuator

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