Patent Publication June 18, 1952 (1 - 10 of 488 results)

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 ...

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, ...

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 ...

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 ...