GB408565A - Improvements in automatic door-closing devices - Google Patents
Improvements in automatic door-closing devicesInfo
- Publication number
- GB408565A GB408565A GB1915532A GB1915532A GB408565A GB 408565 A GB408565 A GB 408565A GB 1915532 A GB1915532 A GB 1915532A GB 1915532 A GB1915532 A GB 1915532A GB 408565 A GB408565 A GB 408565A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- stem
- checking
- closing
- 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
Links
- 239000012530 fluid Substances 0.000 abstract 5
- 244000273618 Sphenoclea zeylanica Species 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 239000011800 void material 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
- E05F3/10—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
- E05F3/102—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 rack-and-pinion transmission between driving shaft and piston within the closer housing
-
- 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
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
408,565. Operating doors by springs; checks. LEVASSEUR, J. L., 9, Avenue Fontaine de Rolle, Nanterre, Seine, France. July 6, 1932, No. 19155. Void [Abridged as open to inspection under Sect. 91 of the Acts, July 8, 1932]. [Class 65 (i).] In a spring-closing and fluid-check device for doors, in which the spring bears on the check piston in the cylinder, means are provided whereby the door is unchecked during the first part of its closing movement, is then checked until nearly closed, and is finally free again to ensure closing by slight slamming ; the periods of free movement and of checking are adjustable, and the amount of checking can also be varied. The device comprises a cylinder containing a check piston 8 and a closing spring 9 acting on the piston. The piston has a hollow stem 10 attached to a rack 12 which engages with a pinion on the driving-shaft 15 ; the shaft 15 carries an arm which is connected with the door by a link or a pin-and-slot attachment. The bore of the piston stem 10 opens at one end into the checking end C of the cylinder and communicates through holes 11 with the part of the cylinder behind the piston. An obturator 27, screwed into the end-cap 7 of the cylinder, projects into the bore of the piston stem 10. The part of the bore of the stem 10 adjacent to the face of the piston is enlarged, and a washer 22, with a notched edge and a central aperture tightly fitting the largest part of the member 27, seats on the shoulder between the large and small parts of the bore, being pressed thereon by a spring bearing against a ring 26 fixed in the piston. The stem of the obturator 27 is hollow, and opens at the end into the bore of the piston stem and also communicates with the checking space C of the cylinder through an aperture 30, the size of which is adjustable by means of a screw 31. During the closing of the door, the piston moves to the right, and the first movement is unchecked, as the checking fluid can pass freely from the space C into the bore of the piston stem 10. When the piston reaches the position shown, the passage becomes throttled by the member 27, until this member completely closes the aperture in the washer 22 and the only passage for fluid is then through the throttled hole 30 in the stem of the member 27. Further movement of the piston brings the washer 22 clear of the obturator head to allow free passage of fluid again, so that the final closing of the door is unchecked. In the opening movement, when the head of the member 27 engages the washer 22 it carries the washer away from its seat, allowing free passage of the checking fluid round the washer and through the notches in its edge, until the pressure of the spring forces it off the obturator head back on to its seat to allow the fluid to pass between it and the obturator, so that the opening movement of the door is entirely unchecked. The positions in the closing stroke at which the checking and release take place may be adjusted by screwing the member 27 in or out in the cylinder head 7, a cap nut 32 serving to lock it in position and also to cover the throttling screw 31 of the hole 30 in the stem of the member 27.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1915532A GB408565A (en) | 1932-07-06 | 1932-07-06 | Improvements in automatic door-closing devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1915532A GB408565A (en) | 1932-07-06 | 1932-07-06 | Improvements in automatic door-closing devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB408565A true GB408565A (en) | 1934-04-12 |
Family
ID=10124657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1915532A Expired GB408565A (en) | 1932-07-06 | 1932-07-06 | Improvements in automatic door-closing devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB408565A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1039886B (en) * | 1955-09-13 | 1958-09-25 | Albert Schnetz | Damping device for closer of door leaves, consisting of cylinder and piston |
DE1141921B (en) * | 1959-02-10 | 1962-12-27 | Doerken & Mankel K G | Device for opening and closing door leaves |
US3287758A (en) * | 1964-05-15 | 1966-11-29 | Ben V Domas | Pneumatic door-control device |
-
1932
- 1932-07-06 GB GB1915532A patent/GB408565A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1039886B (en) * | 1955-09-13 | 1958-09-25 | Albert Schnetz | Damping device for closer of door leaves, consisting of cylinder and piston |
DE1141921B (en) * | 1959-02-10 | 1962-12-27 | Doerken & Mankel K G | Device for opening and closing door leaves |
US3287758A (en) * | 1964-05-15 | 1966-11-29 | Ben V Domas | Pneumatic door-control device |
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