1
Gardner Cyril, Mullan John: Preparation of 4-aminodiphenyl amine. Ici, January 22, 1964: GB947082-A (12 worldwide citation)

4-Aminodiphenylamine is prepared by hydrogenating in the presence of a catalyst an alkali metal derivative of 4-nitrosodiphenylamine in an alcoholic medium wherein the alcohol is an alkyl alcohol containing from 1 to 10 carbon atoms. The catalyst may be a metal of Group VIII of the Periodic Table, f ...


2
Substituted chroman compounds. Merck & Co, January 22, 1964: GB947643-A (10 worldwide citation)

The invention comprises chroman compounds of formula: wherein R is a hydrogen atom or an acyl radical. The compounds are prepared from Coenzyme Q by reactions which are shown in the following scheme: Compound II (Coenzyme Q) may be heated under reduced pressure to form compound I directly without in ...


3
Gradon Keith: Gas turbine engine. Rolls-Royce, January 22, 1964: GB947553-A (9 worldwide citation)

947,553. Gas turbine rotors. ROLLS-ROYCE Ltd. May 9, 1962, No. 17925/62. Headings FIG and FIT. A compressor or turbine rotor disc for a gas turbine engine has blades with cooling fluid conduits, means for supplying cooling fluid to one surface of the rotor disc, the surface being provided adjacent i ...


4
Bridwell Harold Cloyd, Rowley David Scott: Drag bit blade. Jersey Prod Res Co, January 22, 1964: GB947440-A (8 worldwide citation)

947,440. Boring earth &c. JERSEY PRODUCTION RESEARCH CO. Feb. 9, 1962, No. 5047/62. Heading E1F. A drag bit blade comprises a steel blade body, and an insert bonded to the leading face of the body, to have a leading face sloping downwardly towards the trailing edge of the body at an angle of 5 degre ...


5
Forester Maurice Alwyn Pitts: Improvements in and relating to signs. Sigma Signs, January 22, 1964: GB947357-A (8 worldwide citation)

947,357. Signs. SIGMA SIGNS Ltd. Nov. 5, 1962 [Nov. 10, 1961], No. 40401/61. Heading G5C. A sign comprises a sheet, for example of metal or plastic sheet material which is folded back on itself and has its ends shaped to enter slots in a mounting block, by this means the sheet may be changed as requ ...


6
Improvements in or relating to heating plant, particularly for dwelling houses. Sten Wilhelm Larsvall, January 22, 1964: GB947114-A (8 worldwide citation)

947,114. Air supply for combustion; forced and induced draught systems; chimney tops. S. W. LARSVALL. July 4, 1961 [July 6, 1960], No. 24151/61. Headings F4B, F4J and F4W. In a heating plant having a combustion chamber and a driven fan for intensifying the draught in the combustion chamber, a flue p ...


7
Improvements in or relating to rotation responsive devices. August Karolus, January 22, 1964: GB947310-A (8 worldwide citation)

947,310. Turn sensitive devices employing vibrating masses. A. KAROLUS. July 14,1961 [July 22, 19601,No. 25590/60. Heading G1C. [Also in Division G5] A turn sensitive device employing a vibrating tuning fork 6 has the tines 10 of the fork mounted intermediate the length of a torsion bar 5 whose ends ...


8
Ridder Rene Rachel de: New derivatives of dialkyl xanthines and the preparation thereof. Manuf Prod Pharma, January 22, 1964: GB947495-A (8 worldwide citation)

The invention comprises compounds of general formula: wherein R1 and R2 represent alkyl radicals, R3 represents hydrogen or an alkyl or hydroxyalkyl radical, R4 represents a hydroxyalkyl or arylhydroxyalkyl radical, and X represents an alkylene group; their acid addition salts; and their preparation ...


9
Wochnowski Waldemar: Method and apparatus for drying tobacco or tobacco-containing articles. Kurt Koerber, January 22, 1964: GB947280-A (7 worldwide citation)

947,280. Treating tobacco. K. KÍRBER. Oct. 1, 1962, No. 37084/62. Heading A2C. [Also in Division F4] In apparatus for treating tobacco or tobacco-containing articles, an alternating electro-magnetic radiation field is produced by at least one micro-wave source operating in the decimeter or centimete ...


10
Kleiner Mark: Improvements in or relating to inflatable articles. Randall & Wood, January 22, 1964: GB947559-A (7 worldwide citation)

947,559. Stoppers. RANDALL & WOOD Ltd. June 12, 1962, No. 22466/62. Heading B8T. [Also in Division F2] A non-return valve for an inflatable article such as a bed, cushion, boat, toy or balloon, comprises a nipple 1B, Fig. 1, of resilient material formed with or connected to the article 1 and having ...