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Improvements in and relating to protection means against burglary and fire for safes, strong rooms, and the like. Morgan Cyprian Mcmahon O Brien September 23, 1926: GB231851-A (3 worldwide citation)

231,851. O'Brien, M. C. M. March 23, 1925. Valves actuated indirectly.-Relates to a pressure-operated bolt locking system for safes, strong-rooms, &c. combined with burglar and like alarm devices. Figs. 3 and 4 shows a safe, the walls of which are constructed to form two independent cavities 6, 7. T ...


2
Improvements in and relating to means for the protection of jewellers windows and the like. Morgan Cyprian Mcmahon O Brien September 21, 1927: GB278057-A (2 worldwide citation)

278,057. O'Brien, M. C. M. June 21, 1926. Window guards; shutters.-A folding shutter consisting of hinged leaves is adapted to be interposed between a jeweller's window 2 and display shelves 3a when the window is broken or tampered with by thieves. The lowest leaf is attached to the bottom 5 of the ...


3
Improvements in and relating to safes, strong-rooms, vaults and the like. Morgan Cyprian Mcmahon O Brien December 21, 1927: GB282122-A (1 worldwide citation)

282,122. O'Brien, M. C. M. June 21, 1926. Safes and strong-rooms ; locks ; permutation ; fastenings co-operating with alarm apparatus.- A pressure operated system such as described in Specification 231,851 which operates locking bolts and functions as an alarm, is so arranged that the locking system ...


4
Improvements in and relating to vaults, strong rooms, and the like. Morgan Cyprian Mcmahon O Brien, Brien Security O June 26, 1928: GB293068-A (1 worldwide citation)

293,068. O'Brien, M. C. M., and O'Brien Security, Ltd. Feb. 26, 1927. Safes and strong-rooms are provided with cavity-means which provide facilities for the visual inspection of the interior surfaces of the retaining walls and the exterior surfaces of the vault walls without allowing space which wou ...


5
Improvements in or relating to alarm apparatus. Morgan Cyprian Mcmahon O Brien September 23, 1926: GB259109-A (1 worldwide citation)

259,109. O'Brien, M. C. M. March 23, 1925. Burglar and like alarms. - Relates to electric alarms for use in connection with safes, strongrooms, and the like. According to the invention, a pair of pipes convey pressure from sources associated with the safe &c. to a pair of pressureoperable devices, e ...


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Improvements in and relating to means for the protection of jewellers windows and the like. Morgan Cyprian Mcmahon O Brien December 10, 1926: GB262571-A (1 worldwide citation)

262,571. O'Brien, M. C. M. June 10, 1925. Burglar and like alarms. -To prevent burglary a jeweller's or like window has display shelves supported by cords 31 which are released by breakage of the glass &c. the contents of the shelves being precipitated into a cotton-wool-lined box 39 which is automa ...


7
Improvements in and relating to means or apparatus for coding and de-coding messages. Morgan Cyprian Mcmahon O Brien October 4, 1929: GB320315-A

320,315. O'Brien, M. C. M. April 4, 1928. Machines for coding and decoding; hammer-impression arrangements; typewheel actions.-A coding and decoding machine is provided with a series of type-wheels above which is traversed a movable printing-carriage carrying an impression hammer and strip feeding a ...


8
Improvements in or relating to machines for enciphering and deciphering messages. Morgan Cyprian Mcmahon O Brien September 16, 1936: GB453660-A

453,660. Typewriters for ciphering. O'BRIEN, M. C. M., 1, Mays Hill Road, Shortlands, Kent. April 3, 1935, No. 10358. [Class 146 (ii)] [See also Group XVI] A typewriter for ciphering and deciphering comprises a number of cipher wheels rotatable about an axis which is adapted to be rocked automatical ...


9
Improvements in or relating to enciphering and deciphering machines. Morgan Cyprian Mcmahon O Brien March 12, 1941: GB534615-A

534,615. Ciphering apparatus. O'BRIEN, M. C. M. July 3, 1939, No. 19332. [Class 146 (ii)] Ciphering and de-ciphering apparatus consists of a plurality of flexible endless bands 19 arranged side by side and each carrying one or more alphabets arranged end-to-end lengthwise of the tape, means being pr ...


10
Improvements in or relating to pressure-operating systems for the protection of strong room doors and the like. Morgan Cyprian Mcmahon O Brien August 23, 1926: GB257509-A

257,509. O'Brien, M. C. M. March 23, 1925. Safes and strongrooms; pneumatically controlled fastenings; fastenings co-operating with alarms; obstruction bars; multiple-bolt fastenings.-A pressure-operated locking system is arranged with a pawl or swivel bar which, when pressure has forced bolts into ...



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