GB1000864A - Door closer - Google Patents

Door closer

Info

Publication number
GB1000864A
GB1000864A GB4215861A GB4215861A GB1000864A GB 1000864 A GB1000864 A GB 1000864A GB 4215861 A GB4215861 A GB 4215861A GB 4215861 A GB4215861 A GB 4215861A GB 1000864 A GB1000864 A GB 1000864A
Authority
GB
United Kingdom
Prior art keywords
valve
cylinders
door
fluid
closing
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
GB4215861A
Inventor
Arthur James Hewlett
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.)
JACKSON EXIT DEVICE CORP
Original Assignee
JACKSON EXIT DEVICE CORP
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 JACKSON EXIT DEVICE CORP filed Critical JACKSON EXIT DEVICE CORP
Priority to GB4215861A priority Critical patent/GB1000864A/en
Publication of GB1000864A publication Critical patent/GB1000864A/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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
    • E05F3/104—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction with cam-and-slide transmission between driving shaft and piston within the closer housing
    • 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
    • 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
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
    • E05Y2900/132—Doors

Abstract

1,000,864. Door closers. JACKSON EXIT DEVICE CORPORATION. Nov. 24, 1961, No. 42158/61. Heading E2M. In a door closer comprising a housing forming a reservoir for hydraulic fluid and containing a closing spring acting upon a check piston movable in a cylinder within the housing and linked with a spindle for connecting the closer to a door, a non-return valve is provided for permitting a free flow of fluid from the main portion of the reservoir into the cylinder during the opening movement of the door, and the closing movement is controlled by a pair of separate means one of which comprises a valve adjustable independently of the other means and arranged to permit a restricted flow during the whole of the closing movement and the other of which permits a restricted flow during an initial portion of the closing movement but is inoperative during the final portion of the movement. The first means is constructed so that the flow of fluid therethrough cannot be completely cut off. The drawings show a door closer adapted to be mounted in the lintel of a door frame and comprising a pair of closing springs 31 acting on pistons 20 movable in parallel cylinders 19 and linked by piston rods 40 to a pair of parallel plates 35, 36 provided with guide slots 37, 38. These slots receive corresponding shoulders 27, 28 formed on the spindle 24, and a cam 51 secured to the spindle moves in the space between the plates and co-operates with follower rollers 43, 44, 45 rotatable on shafts 48-50 mounted in the plates. Hold-open recesses 53 and hold-closed recesses 54 are formed in the cam surface. The cylinders 19 are connected by ports 80 to a bore 75 containing the first of the separate control means, which comprises a valve 70 screwed into the partition 18 between the cylinders to control the flow of fluid from the inner ends of the cylinders via a bore 79 to the main portion of the reservoir. A slight clearance between the valve stem 71 and the bore 75 prevents complete closure of the valve. The other control means comprises a tapered groove 65 in the wall of one of the cylinders which co-operates with the corresponding piston over the initial portion of the closing movement. In a modification the groove is replaced by a second valve similar to the valve 70 but spaced from the inner ends of the cylinders. A non-return valve 58 is provided in each of the pistons.
GB4215861A 1961-11-24 1961-11-24 Door closer Expired GB1000864A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4215861A GB1000864A (en) 1961-11-24 1961-11-24 Door closer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4215861A GB1000864A (en) 1961-11-24 1961-11-24 Door closer

Publications (1)

Publication Number Publication Date
GB1000864A true GB1000864A (en) 1965-08-11

Family

ID=10423117

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4215861A Expired GB1000864A (en) 1961-11-24 1961-11-24 Door closer

Country Status (1)

Country Link
GB (1) GB1000864A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8225458B1 (en) 2001-07-13 2012-07-24 Hoffberg Steven M Intelligent door restraint
CN106223759A (en) * 2016-09-13 2016-12-14 佛山市奥达金属制品有限公司 Multipoint positioning cam

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8225458B1 (en) 2001-07-13 2012-07-24 Hoffberg Steven M Intelligent door restraint
US9045927B1 (en) 2001-07-13 2015-06-02 Steven M. Hoffberg Intelligent door restraint
US9121217B1 (en) 2001-07-13 2015-09-01 Steven M. Hoffberg Intelligent door restraint
US9995076B1 (en) 2001-07-13 2018-06-12 Steven M. Hoffberg Intelligent door restraint
CN106223759A (en) * 2016-09-13 2016-12-14 佛山市奥达金属制品有限公司 Multipoint positioning cam

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