GB744423A - Improvements in or relating to check valves for hydraulic check devices applicable to spring-loaded door closers - Google Patents
Improvements in or relating to check valves for hydraulic check devices applicable to spring-loaded door closersInfo
- Publication number
- GB744423A GB744423A GB1989453A GB1989453A GB744423A GB 744423 A GB744423 A GB 744423A GB 1989453 A GB1989453 A GB 1989453A GB 1989453 A GB1989453 A GB 1989453A GB 744423 A GB744423 A GB 744423A
- Authority
- GB
- United Kingdom
- Prior art keywords
- door
- spring
- chamber
- plunger
- valve
- 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
Links
- 239000007788 liquid Substances 0.000 abstract 1
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
- E05F3/12—Special devices controlling the circulation of the liquid, e.g. valve arrangement
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
- E05Y2201/43—Motors
- E05Y2201/448—Fluid motors; Details thereof
- E05Y2201/458—Valves
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
- E05Y2800/10—Additional functions
- E05Y2800/12—Sealing
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
- E05Y2800/26—Form or shape
- E05Y2800/28—Form or shape tubular, annular
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
- E05Y2800/26—Form or shape
- E05Y2800/298—Form or shape having indentations
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- 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—Type of wing
- E05Y2900/132—Doors
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
744,423. Door checks. ADAMS, Ltd., A. W. July 17, 1953, No. 19894/53. Class 65 (1). [Also in Group XXIX] In a hydraulic check device, particularly for a spring-loaded door closer, having a plunger 3 in a cylinder 1 and a check valve, the latter comprises a chamber 10, a tubular metering valve stem 17 ported at 18 to the chamber, a metering passage where a tapered portion 17a on the stem passes through an annular piston 11, whereby liquid can flow in and out of the chamber through the metering passage and through a chamber port 4 communicating with the cylinder, and a non-return ball valve 19 within the stem. As the door closes a cam abuts a roller 6 carried by the spring-loaded plunger 3 and forces oil slowly through the port 4, chamber 10 and metering passage 17a to a reservoir. Should the door close under a greater force than that of the door closing spring, the increased pressure moves the piston 11 away from a stop 12 against its spring 13 to open a relief passage 15 so that oil is released quickly to allow the door to close. On opening the door, the plunger 3 sucks oil in past the valve 19 as well as through the metering passage. Specification 647,808, [Group XXIX], is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1989453A GB744423A (en) | 1953-07-17 | 1953-07-17 | Improvements in or relating to check valves for hydraulic check devices applicable to spring-loaded door closers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1989453A GB744423A (en) | 1953-07-17 | 1953-07-17 | Improvements in or relating to check valves for hydraulic check devices applicable to spring-loaded door closers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB744423A true GB744423A (en) | 1956-02-08 |
Family
ID=10136936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1989453A Expired GB744423A (en) | 1953-07-17 | 1953-07-17 | Improvements in or relating to check valves for hydraulic check devices applicable to spring-loaded door closers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB744423A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2925806A1 (en) * | 1978-07-13 | 1980-01-24 | Newman Tonks Ltd | Hydraulic restrictor valve for door closing unit - has tapered valve member carried loosely in axially screw adjustable seat |
| WO2013034251A1 (en) * | 2011-09-07 | 2013-03-14 | Dorma Gmbh + Co. Kg | Chamfered valve, in particular for a door closer |
| EP3103949A1 (en) * | 2015-06-10 | 2016-12-14 | DORMA Deutschland GmbH | Door drive |
-
1953
- 1953-07-17 GB GB1989453A patent/GB744423A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2925806A1 (en) * | 1978-07-13 | 1980-01-24 | Newman Tonks Ltd | Hydraulic restrictor valve for door closing unit - has tapered valve member carried loosely in axially screw adjustable seat |
| WO2013034251A1 (en) * | 2011-09-07 | 2013-03-14 | Dorma Gmbh + Co. Kg | Chamfered valve, in particular for a door closer |
| EP3103949A1 (en) * | 2015-06-10 | 2016-12-14 | DORMA Deutschland GmbH | Door drive |
| CN106401344A (en) * | 2015-06-10 | 2017-02-15 | 多玛德国有限公司 | Door drive |
| US10006236B2 (en) | 2015-06-10 | 2018-06-26 | Dormakaba Deutschland Gmbh | Door drive |
| CN106401344B (en) * | 2015-06-10 | 2019-11-15 | 多玛凯拔德国有限公司 | Gate driver |
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