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1. 发明专利

GB493335A Improvements in double butt hinges 未知
公开(公告)号：GB493335A
公开(公告)日：1938-10-06
申请号：GB1817437
申请日：1937-06-30
申请人： ARTHUR WELLESLEY PRATT , ROBERT ADAMS VICTOR LTD
IPC分类号： E05D3/00
摘要： 493,335. Hinges. PRATT, A. W., and ADAMS (VICTOR), Ltd., R. June 30, 1937, No. 18174. [Class 65 (ii)] A double-butt hinge, consisting of two integral vertical barrels 1, 2 accommodating check devices, has means constraining the door to swing only about the axis of the barrel appropriate to its direction of movement. When the door 4 swings in the direction X, Fig. 2, the upper door hinge plate 5 rotates with respect to the barrel 1 and operates the check device therein but when it swings in the direction Y the barrel 1 rotates about the axis of the barrel 2 to which it is rigidly attached and causes the barrel 2 to rotate with respect to the collar 2a of the door post bracket 2c and operate its check device. Thus, as the door swings from one side of the doorway to the other, the axis of rotation is transferred from one barrel to the other so that the lower hinge plate 7 must be adapted to change its axis of rotation and also must be securely attached to the cylinder about which it is rotating. The hinge plate 7 and the door-post hinge bracket 7a, Figs. 5 and 6, are each provided with a pair of lug-like parts 8 and 10, 12 and 13, one of each pair being a shallow hollow cylinder 10, 13 and the others 8, 10 having an arcuate rib 9, 15. The upstanding parts 10a, 13a of the cylinders 10, 13 are, when the hinge is assembled, rotatable in the lower ends of the barrels 1, 2, and when the door is in the closed position the cylinders 13, 10 accommodate the ribs 9, 15. If the door is swung in the direction X, the arcuate rib 15 will rotate about the axis of the barrel 1 and move through the opening 11 in the cylinder 10, whilst the cylinder 13 will also rotate about the axis of the barrel 1 and cause the opening 14 to move into a position out of register with the end of the rib 9 so that it is impossible to move this rib out of the cylinder 13. If the door is swung in the direction Y the rib 15 rotates in the cylinder 10 and opening 14 of the cylinder 13 passes freely over the rib 9. The rib 15 is retained in the cylinder 10 as its end moves out of register with the opening 11 during this movement.

2. 发明专利

GB304845A Improvements in door checking devices 未知
公开(公告)号：GB304845A
公开(公告)日：1929-01-31
申请号：GB2896627
申请日：1927-10-31
申请人： JAMES SIDNEY ADAMS , ARTHUR WELLESLEY PRATT
IPC分类号： E05F3/04
摘要： 304,845. Adams, J. S., and Pratt, A. W. Oct. 31, 1927. Buffers. - A device in which the resistance offered by a fluid to compression is adapted to serve as a vehicle buffer consists of two chambers which normally occupy approximately the space of one chamber and are adapted to be extended to produce two compression chambers having together a compression space much greater than one of the chambers. As shown for a door check, the outer cylinder is provided with a fixed piston 19 on a rod 18 secured to the cap 16, the inner slidable cylinder 11 being closed by end caps 15, 10. Piston packing members 17, 25 are also provided. When the door is opened the cylinder 11 is drawn out to form increasing spaces between the members 16, 15 and 19, 10, for which air inlet valves 21 are provided. On closing the door, the air in these. spaces is compressed and escapes slowly through outlet valves 24, the space 17 between the members 15, 19 increasing to form a large vacuum space that offers an increasing resistance to the door closing. The member 9 is connected to a lever that is operated by a crank arm on the door pivot.

3. 发明专利

GB307201A Improvements in door checking devices 未知
公开(公告)号：GB307201A
公开(公告)日：1929-03-07
申请号：GB567828
申请日：1928-02-23
申请人： ARTHUR WELLESLEY PRATT , JAMES SIDNEY ADAMS
IPC分类号： E05F3/10
摘要： 307,201. Pratt, A. W., and Adams, J. S. Feb. 23, 1928. Operate doors by springs; checks.-In a door spring and check device comprising a piston check 9 and a closing spring 17 adapted to obviate any appreciable compression of the checking fluid until the door is nearly closed, an obturator 19 on the side of the piston opposite to the closing spring is adjustably a screw device 23, 24 fitted to the piston end 2 for moving the member 19 into an appropriate position. As the door closes under the action of the spring, the passage 20 through the check piston is engaged by the member 19 which prevents the passage of the check fluid through the passage 20 as the door reaches its nearly-closed position. This effect is made gradual by tapering the pin, as shown at 21. The cylinder 1 is mounted on the door and its piston 8 is connected by arms 13 to a pivot 14 rotatable in bracket arms 15 on the wall. In a modification, the member 19 is integral with the screwed member 24, which is adjustably mounted in the end 2 of the piston cylinder.

4. 发明专利

GB304368A Improvements in checking appliances for use with door springs 未知
公开(公告)号：GB304368A
公开(公告)日：1929-01-21
申请号：GB2793227
申请日：1927-10-20
申请人： JAMES SIDNEY ADAMS , ARTHUR WELLESLEY PRATT
IPC分类号： E05F3/10
摘要： 304,368. Adams, J. S., and Pratt, A. W. Oct. 20, 1927. Operating and controlling doors by springs; checks.-In a check device of the piston and sleeve type for use with door springs the arrangement provides that there is no reduction of volume of space on the piston rod side of the piston in the cylinder when the resistance fluid is being transferred to the other side of the piston. As shown, the check device comprises cylindrical sleeves b, g oil which the outer sleeve b is closed at one end by a cap c and has packing f at the other end, and the inner sleeve g, sliding within the sleeve b, is closed at one end by a cap h and is open at its other end g'. The caps h, c are attached respectively to fixed and movable parts of the door spring mechanism. A piston e, sliding inside the sleeve g, is secured to the cap c by a rod d. When the door is opened the sleeves are extended, oil passing through the passages i to the space j, which increases as the door is being opened. On the return of the door to the closed position, the passages i are closed by valves k and the oil that is compressed in the space j returns to the other side of the piston through the passage l. This passage is restricted by a valve n and a spring-pressed rod o in the piston-rod d, the spring r being adjustable by means of a screw p. A relief valve is provided for excessive pressures, and a filling hole s is also provided.

5. 发明专利

GB344230A Improvements in door locking devices 未知
公开(公告)号：GB344230A
公开(公告)日：1931-03-05
申请号：GB756530
申请日：1930-03-07
申请人： SIDNEY JAMES ADAMS , ARTHUR WELLESLEY PRATT
IPC分类号： E05G5/02
摘要： 344,230. Emergency fastenings for doors. ADAMS, S. J., 3, Emerald Street, London, and PRATT, A. W., 31, Beechwood Avenue, Eastcote Lane, South Harrow, Middlesex. March 7, 1930, No. 7565. [Class 44.] An emergency device for locking doors comprises a catch normally held clear of the door but capable of being released to form an abutment which allows closure of the door but prevents subsequent opening. In the construction shown, the spring-loaded members 3, normally held clear of the door, can be lowered to the position shown in Fig. 2 by energizing a solenoid 14. To allow closure of the door when the members 3 are lowered, they have inclined lower surfaces 4 and are slotted at 6 to slide over pins 7 which are supported across the bifurcated ends of levers 8. Where applicable a single member 3 is used.

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