674,082. Destructive distillation in situ. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 31, 1950 [June 15, 1949], No. 15989/49. Drawings to Specification. Class 55 (ii). In a system for the underground gasification of coal in which a stream of gasifying medium such as air, air mixed with oxygen, ...
674,018. Augers. TAYLOR, A. E. Nov. 27, 1950 [Nov. 30, 1949], No. 30767/49. Class 83 (iii). A wood-boring bit comprises a spindle 10 having a shoulder 14 against which abuts the shank 20 of a detachable cutterhead 15 on a reduced end 12 of the spindle, a tapering helicallythreaded lead point 13 on t ...
673,998. Fuelling systems for aircraft.WATTS, A. E., and PARKER, J. R. Oct. 14, 1949, No. 26395/49. Class 116 In fuelling and servicing systems for aircraft of the type having submerged fuel storage tanks and piping leading to a number of fuelling and servicing units, each fuelling and servicing uni ...
674,118. Fuel dispensing apparatus. WATTS, A. E., and PARKER. J. R. Oct. 14, 1949, No. 15944/51. Divided out of 673,998. Drawings to Specification. Class 116 A fuelling system for airplanes consists of submerged fuel storage tanks each having a pump pit, a plurality of submerged pit casings, cell un ...
674,251. Resilient mountings for seats. HOLMES, T., and STILES, J. K. Sept. 8, 1950. fSept. 23, 1949] No. 24502/49. Class 52 (i). A spring seat assembly particularly for farm tractors, &c. comprises a suspension system having a variable rate of resistance over the range of deflection permitted, the ...
673,961. De-icing aircraft. ROLLS-ROYCE, Ltd. July 3, 1950 [April 5, 1949], No. 9302/49. Class 4. [Also in Groups XXVI and XXXV] In gas turbine plant comprising an air compressor, combustion equipment and a turbine in which air is tapped off from the compressor and supplied to a separate combustion ...
Alloys for use in electric cables, resistances or thermocouples have the following composition: 30 per cent nickel, 70 per cent copper; 90 per cent nickel, 10 per cent chromium; 80 per cent nickel, 20 per cent chromium; 65 per cent nickel, 15 per cent chromium, 20 per cent iron; 76 per cent nickel, ...
674,139. Delivering measured quantities of liquid. BULL & CO., Ltd., R. H. Nov. 10, 1950 [Oct. 3, 1949], No. 25334/49. Class 106(v) A device for delivering measured quantities of liquid comprises a measuring chamber 1 with an inlet port 5 at the top and an outlet port 2 at the bottom, a valve member ...
674,225. Balancing reciprocating engines. HAMILL, W. W., CRUMP, R. S., and MEADOWS, Ltd., H. Sept. 30, 1949, No. 24486/48. Class 122(iii) In a reciprocating engine or compressor in which secondary forces are balanced by two balancing members rotating in opposite directions at twice the crankshaft sp ...
The invention comprises an ethyl silicate such that on distillation at atmospheric pressure under certain defined conditions (without any substantial reflux) 8-16 per cent by volume distils up to 180 DEG C. and 39-55 per cent above 180 DEG C. Such an ester comprises mainly ethyl orthosilicate with a ...
