baber/WOPTO huggingface dataset:
Patent GB-669014-A (GB)
Title: Improvements relating to jet-propelled missiles
IPC: H01L39/24
Filed: 1950-07-03
Abstract: 669,014. Jet propulsion plant. AKTIEBOLAGET BOFORS. July 3, 1950. [July 7, 1949] No. 16535/50. Class 110(iii). [Also in Group XXI] Jet-propelled missile intended to be fired from a gun or a similar projector comprises a shell 1 and an axially arranged body 2 adjustable longitudinally relative to the shell. When inserted in the gun the forward edge 3 of the shell closely fits the protruding surface of the body 2. An annular combustion chamber 6 between the body 2 and the shell contains a rocket propellent powder 7 surrounded by a layer of solid fuel 8. On firing, the missile is accelerated by the resultant pressure within the firing device acting on the exterior of the shell behind'a gas check 10 and on the inner surface of the combustion chamber. When the missile has left the firing device it is further accelerated by the combustion gases from the burning rocket propellent. These gases maintain the body 2 in the forward position. When combustion of the propellent has ended, the fall in pressure in the combustion chamber allows the body. 2 to be retarded by the -air pressure on its nose 4. Thus an annular nozzle 5, Fig. 2, is exposed through which air enters the combustion chamber. The fuel 8 is ignited and the combustion gases escape through the exhaust nozzle 9, the narrowest section of which is enlarged by the displacement of the body 2. The fuels used may be solid, liquid or gaseous or a combination of such fuels.
Patent GB-715328-A (GB)
Title: Improvements in or relating to expansion valves
Inventor: SHERLOCK JOHN EDWARD
IPC: F25B41/06
Filed: 1951-07-12
Abstract: 715,328. Valves. BRITISH THERMOSTAT CO., Ltd. June 25, 1952 [July 12, 1951], No. 16576/51. Class 135. [Also in Group XIII] A refrigerant expansion valve has a needle valve 4 normally operated by a thermal element, e.g. through the capillary tube 6 and diaphragm 7, and pressure responsive means, e.g. the capsule 27, which closes the valve when evaporator back pressure exceeds a predetermined limit, independently of movements of the thermal element. The diaphragm actuates push rods 8 bearing on a flange 9 sliding against a spring 17 in a sleeve 18. The spring is adjusted by the screw 19 acting on the sleeve. The base of the needle valve is pressed by a spring 10 on to the end of a sleeve 11 carried by the flange. When the back pressure reaches a given value, it acts via sleeve opening 45, slots 37 and passage 44 to move the base of the capsule against a spring 29 so that an adjustable rod 39 closes the valve. The spring 29 is adjustable by turning the capsule.
Patent GB-570815-A (GB)
Title: Improvements in or relating to connecting means for flexible tubing or ducting
IPC: F16L33/01
Filed: 1943-10-11
Abstract: 570,815. Making pipe fittings. JOHNSON, H. C. Oct. 11, 1943, No. 16609. [Classes 83 (ii) and 83 (iv)] [Also in Group XXVIII] Stamping screw-threads ; embossing ; dies.- An end fitting for a hose of the type having a helical reinforcement 2, comprises a coupling member 4 having a continuous or interrupted helical ridge or helical row of projections adapted to make screwed engagement with the helical reinforcement of the tube, said ridge or projections being either pressed from the wall of the member or separately attached thereto. The member 4 may have a wire 5 soldered thereto or a series of studs helically arranged and soldered to the member. A press, for stamping a helical ridge or helical row of projections in the member 4 comprises a base-plate 20, Fig. 5, a block 9 having a semicylindrical recess in which the tube 4 rests, and a die 16 adapted to be engaged by a hammer and having an end guide portion 18 engaged in the baseplate 20 and a lateral extension 12 to which is detachably secured a member 14 which provides a ridge, or, series of projections, extending beyond the face of the part 12. The recess in the block 9 has a helical groove 11 which coincides with the position of the projection 14. The tube 4 is partially rotated after each hammer blow.
Patent GB-580745-A (GB)
Title: Improvements in or relating to variable pitch propeller systems
IPC: B64C11/44
Filed: 1943-10-12
Abstract: 580,745. Variable pitch propellers. FAIREY AVIATION CO., Ltd. Oct. 12, 1943, No. 16723. Convention date, Jan. 19. [Class 114] A self-contained unit for mounting on the propeller drive shaft 4 of an aircraft engine 2 comprises a housing 14 carrying a governor 96 driven by the engine for actuating switches or the like controlling a reversible electric or hydraulic motor 72 driving gearing for varying the pitch of the blades 37. Two such units may be applied to contra-rotating propellers mounted on coaxial drive shafts. In the form shown, the housing 14 has a flange 10 secured by nuts 12 and bolts 8 on a front facing 6 of the engine 2. Keyed to the shaft 4 is a ring member 16 to which the hub sleeve 20 is secured by a lock nut 28 and wedge collets 18, 22. The gearing includes a spider 58 continuously rotated in the same. direction by the shaft 4 but at a lower speed. The electric motor 72 is geared to a shaft 70 carrying a worm 68 which rotates a ring gear-wheel 66 which, through pinions 56, drives a large ring gear-wheel 52 geared to annular worm-wheels 38 for rotating the blades 37 about their longitudinal axes. The gear-wheel 66 also drives through a spur gear 108, a worm 110, and a worm-wheel 112, a shaft 114 carrying cams 80, 82, 84 which control switches of the regulating system described in Specification 564,221. The member 16 also carries worm teeth 118 which' engage a worm 120 on a shaft 122, one end of which drives the governor 96 whilst the other end drives a de-icing pump 124. Specification 580,488 also is referred to.
Patent GB-691479-A (GB)
Title: Improvements in door fasteners for horizontal coke ovens or the like
IPC: C10B25/12
Filed: 1950-07-05
Abstract: 691,479. Coke oven doors. KOPPERS GES., H. July 5, 1950 [July 7, 1949], No. 16791/50. Addition to 689,056. Class 55(i) In a coke oven door of the kind described in the parent Specification, the bolt 16 of the latch 18 passes freely through both the said latch and an adjustable bearing 14 on the door 8, and a series of plate springs 15 is mounted on said bolt between the bottom of the bearing and a pressure plate 20 abutting the latch. The springs are compressed to permit release of the latch by a member 21 which is pivoted at 23 and has bridge pieces 22 thereon contacting the pressure ring 20. Opposite the pivot 23 the member 21 is fitted at 29 with an operating arm 30 an end of which is provided with a door-supporting hook 32 adapted to be engaged with a projection 33 on the bearing 14 to swing the member 21 and so move the plate 20 to the right. The arm 30 is also provided with ramps 35 adapted to engage rollers 34 on the door and initiate opening movement of the latter. In a door with upper and lower latches the two arms 30 are connected by a common actuating member 37, and the members 21 are pivoted on a door supporting and conveying machine 28 comprising vertical girders 25 with horizontal arms 24.
Patent GB-636242-A (GB)
Title: Improvements in torches for the subaqueous cutting of metals
IPC: F23D14/44
Filed: 1945-07-03
Abstract: 636,242. Sub-aqueous blowpipe burners. KIRKHAM, W. T. P. July 3,1945, No. 16902. [Class 75 (i)] A sub-aqueous metalcutting torch using gaseous fuel is fitted with a shield 3 providing a gas pocket 4 around the nozzle which may comprise an annular nozzle 1 for the combustible mixture and a central nozzle for the cutting oxygen, and means are provided whereby a part of the combustible mixture is diverted into the shield space 4 e.g. by the discharge aperture 5 in the flat interior front wall 6 of the shield 3 being made slightly smaller in diameter than the annular nozzle 1 ; this pocket of gas protects the base of the flame from the water. The outer surface of the end of the shield may be countersunk at the discharge aperture 5 and also formed with grooves 7 increasing in width and depth outwardly to the periphery of the end surface to allow the flame gases to escape when the burner is thrust against the work.
Patent GB-194608-A (GB)
Title: Improvements in photographic objectives
IPC: G02B13/00
Filed: 1922-06-19
Abstract: 194,608. Graf, C. June 19, 1922. Lenses.-A soft focus photographic objective is similar in form to the lens described in Specification 22400/10, but differs from it in the thickness of the lenses, the radii of curvature and the separations of the lenses, so that a certain amount of spherical aberration remains uncorrected. The negative lenses arranged between the positive lenses are symmetrical with regard to curvatures and refractive index, and the positive lenses are unsymmetrical, and have a refractive index greater than that of the negative lenses. In the example given by numerical data, the index of refraction for the G-line of all the lenses is the same.
Patent GB-769852-A (GB)
Title: Improvements in or relating to rotary pump combinations
IPC: F04F9/04
Filed: 1955-06-13
Abstract: 769,852. Rotary pumps. DUNKEL, M. M., [trading as LEYBOLD'S NACHFOLGER, E.]. June 13, 1955 [June 15, 1954], No. 16979/55. Class 110 (2). A rotary pump plant comprises the series connection of one or more rotary compressors 2, such as Roots blowers, with an oil-sealed pump 5 as last stage characterized in that in a by-pass pipe line 3 connecting the delivery side 4 of the compressor or compressors 2 with the intake side 1 of the compressor operating at the lowest intake pressure there is provided a spring- loaded or gravity-loaded excess pressure valve 6 which opens when the pressure on the delivery side 4 of the compressor or compressors 2 exceeds the pressure on the intake side 1 by a predetermined amount, so as to prevent overloading of the driving motors. When there is more than one compressor 2 each may be bridged by a by-pass having a valve or all may be bridged by a single by-pass.
Patent GB-914024-A (GB)
Title: Electromotive driving means for wagon-pushers
IPC: B66B17/20
Filed: 1960-05-13
Abstract: 914,024. Electrically operated waggon pushers. DEMAG A.G. May 13, 1960 [June 24, 1959], No. 17015/60. Class 78 (4). A waggon pusher, comprising a truck connected to a rack or chain which is driven to and fro electrically, has a squirrel-cage rotor with a sliding armature incorporating a mechanical brake and a high resistance rotor for producing maximum torque on starting.
Patent GB-183996-A (GB)
Title: Improvements in or relating to means for marking out tennis-courts and the like
IPC: A63C19/06
Filed: 1921-06-22
Abstract: 183,996. Brown, C. A. June 22, 1921. Marking-strips.-Porous hard tennis courts are marked-out by flat lead strips a fastened down by nails g the heads d of which are situated in countersunk slots c. To allow for expansion and contraction with change of temperature, the slots c are elongated in the direction of the strip and V-notches are cut in the edges.
Patent GB-1214701-A (GB)
Title: A process for treating excrement by microorganism and products obtained thereby
IPC: A01G33/00
Filed: 1968-04-09
Abstract: 1,214,701. Treating sewage. CITY OF KIRYU. 9 April, 1968 [9 Feb., 1968], No. 17106/68. Heading CIC. [Also in Division C6] Sewage is aerated to form low molecular weight substances, transferred to anaerobic conditions where innoculated photosynthesis bacteria are cultivated and after separation of the bacteria the liquid is innoculated with chlorophyceae which are cultivated under aerobic conditions to give a clarified effluent and a culture which is separated. Foaming is prevented by air jets and odours by circulation of gases. Specific bacteria are exemplified.
Patent GB-380461-A (GB)
Title: Improvements relating to speed-regulating governors for engines and machinery
IPC: G05D13/00
Filed: 1931-06-12
Abstract: 380,461. Speed governors. NYBORG, T. G. and HIGGINS, M. F., Meco Works, Worcester. June 12, 1931, No. 17149. [Class 57.] In speed regulating mechanism of the type in which the governor operates a piston valve of the bobbin type controlling the flow of motive fluid, the valve is so shaped that the area of the inner face over which the fluid flows radially at outlet is small. The valve 3 shown is provided with a skirt 4 tapered at a. Both ends of the valve may be provided with a skirt.
Patent GB-1382338-A (GB)
Title: Method and apparatus for producing a mixture of at least two fluids
IPC: B01F23/10
Filed: 1972-04-13
Abstract: 1382338 Mixing fluids L'OREAL 13 April 1972 [16 April 1971] 17167/72 Heading B1C In a method and apparatus for making and storing a mixture of fluids which are not liquid at ambient temperatures, especially a propellant for an aerosol container, a mixture of liquefied chlorofluoroalkanes is supplied through a refrigerator 3, 4, metering liquid ring pump 6, anti-surge accumulator 8 and electromagnetic valve 7 to a static mixer 22. Liquefied nitrous oxide is supplied from a reservoir 11 through a pressure pump 12, piston or diaphragm metering pump 13, anti-surge accumulator 19 and electromagnetic valve 16. The mixture passes through a concentration meter 39 which controls the pump 13 to keep constant. The proportion of chlorofluoroalkanes to nitrous oxide. Alternatively the pump 13 may be controlled by flowmeter(s) for the other liquid or liquids. The liquefield gas supplies have recirculation lines 9, 14, 17 with pressure relief valves 10, 15, 18 to control the supply pressures so that both fluids are supplied to the mixer at an absolute pressure of 19 bars, and at a temperature of -25C which is maintained in the mixer by a cooling jacket 23. The mixture passes through a pressure reducer 25 and heater 26 to a storage vessel which contains an internal flexible jacket 29 the inside of which is subjected to air pressure, and which is enclosed by a protective grid 30. Probes (37a, 38a Fig. 2 not shown), sense the size of the flexible jacket to control the valves 7, 16.
Patent GB-892843-A (GB)
Title: Improvements in or relating to electric supply systems
IPC: H02J7/24
Filed: 1957-05-30
Abstract: 892,843. Automatic voltage and currentcontrol systems. SIMMS MOTOR UNITS Ltd., SHIMWELL, R. H., and ROBINSON, E. L. May 1, 1958 [May 30, 1957], No. 16433/57. Class 38 (4). In an automatic control system for a generator, a switching transistor connected in series with a field winding is controlled by a circuit, connected across the output of the generator, including a non-linear resistance having a characteristic such that its resistance increases for an increase of current through it. As shown, a generator having an armature A1 supplies a battery, not shown, connected to terminals 17, 18 through a rectifier D1 for preventing reverse current. A field winding F1 of the generator is connected in series with a transistor T2 across the armature A1. The base electrode of the transistor T2 is biased by the potential at the junction between a non- linear resistor R4 and a transistor T1. With low generated voltage, a Zener diode Z 1 connected to the base electrode of the transistor T1 is non-conducting and the base current of the transistor T2 flows through the resistor R4 to maintain maximum field current. With highgenerated voltage, the Zener diode Z1 conducts causing an increase in the emitter current of the transistor T2 and a consequent reduction in the base current of transistor T1 so reducing the field current. The system alternates between these states so as to maintain the voltage between terminals 17, 18 substantially constant. A lamp is used as the non-linear resistor R4 to give improved conditions for the build-up of the field current, the resistance of the lamp being low at low generator voltages. In a modification for current regulation a series resistor is employed to derive a voltage for the Zener diode which is proportional to the generated current. In further modifications, the voltage applied to the Zener diode is derived from a potentiometer between terminals 17, 18 and a further transistor is connected in parallel with the transistor T2. A combination of a three-phase alternator and a rectifier may replace the generator shown.
Patent GB-374282-A (GB)
Title: Supporting device for vehicles
IPC: B60S9/04
Filed: 1931-06-15
Abstract: 374,282. Stands or supports for vehicles. VALLET, A., 59, Avenue Victor Hugo, Paris. June 15, 1931, No. 17293. Convention date, June 25, 1930. [Class 79 (iii).] A solid or tubular strut 24, for supporting a vehicle with one or more wheels off the ground, is suspended on a pin 13 on a short arm 23 which is pivoted about a pin 5 carried by a bracket &c. on an axle or frame part and normally brought by elastic means, such as a spring 7 around the pivot, to a downward position where it is held by a catch 8. With the arm 23 in this position, the strut 24 is brought down, after the vehicle has been raised by a jack or other means, and provides the necessary length to keep the wheel or wheels off the ground. When the catch 8 is withdrawn, the arm 23 yields allowing the vehicle to sink to the ground, the strut 24 relieved of the weight tilts, and the spring 7 brings the arm 23 back to the downward position where it is re-engaged by the catch 8 ready for subsequent use. The device may be arranged in a plane transverse to the longitudinal axis of the vehicle and may be located one adjacent to each wheel or equidistantly between a pair of wheels. As shown, it is carried by a collar comprising hinged halves 3, 3a, clamped to an axle 1 by one or more bolts 2. One collar part 3 is formed with return flanges one of which carries the catch 8 pivoted on a pin 10 and formed with an extension 9, being pressed into action by a spring. 12 and disengaged by Bowden control means 22. Upon the opposite flange is formed a boss 20 forming an abutment for the free end of the strut 24 whereby, as the arm 23 rises, the strut is tilted to an intermediate position 141. Bowden control means 18 is utilized to raise the strut to its normal out-of-action position 14<11>.
Patent GB-1060370-A (GB)
Title: High alkyl aluminum compounds
IPC: C07F5/06
Filed: 1963-10-25
Abstract: <PICT:1060370/C4-C5/1> In a process for the manufacture of tri-alkyl aluminium compounds in which olefins are produced and recycled, comprising two ethylene chain growth reactions 181, 171 on tri-lower alkyl aluminium compounds, followed by displacement of the chain grown alkyl groups with recirculated streams respectively of high and low olefins obtained by fractionation, tri-alkyl aluminium compounds 182 from the first chain growth reaction are reacted with the high olefin stream 192 to obtain by displacement the desired tri-alkyl aluminium product 199, the low olefin stream 191 is reacted with tri-alkyl aluminium compound 172, obtained in the second chain growth reaction and the aluminium compound obtained by displacement is recycled 178 to provide the trialkyl aluminium for said second chain growth reaction.  The olefins 191, 192 obtained from the two displacement reactions are fractionated to obtain the high and low olefin streams.  Starting materials may comprise C2, C3, C4 or C6 trialkylaluminium or (C2H5)2 AlH.  High olefin stream 192 may be concentrated in C12-C18 olefins. The tri-alkyl aluminium product may contain C12-C22 alkyl groups.ALSO:<FORM:1060370/C2/1> In a process for the manufacture of tri-alkyl aluminium compounds involving two ethylene chain growth reactions (181, 171) on tri-lower alkyl aluminium compounds followed by displacement of the chain grown alkyl groups with recirculated streams respectively of high and low olefins obtained by fractionation, tri-alkyl aluminium compounds 182 from the first chain growth reaction are reacted with the high olefin stream 192 to obtain by displacement the desired tri-alkyl aluminium product 199, the low olefin stream 191 is reacted with trialkyl aluminium compound 172, obtained in the second chain growth reaction and the aluminium compound obtained by displacement is recycled 178 to provide the trialkyl aluminium for said second chain growth reaction. The olefins 191, 192 obtained from the two displacement reactions are fractionated to obtain the high and low olefin streams.  The products have a non-statistical distribution of alkyl groups and may comprise mainly C10-C22, C8-C12, C12-C18, C12-C16 or C14-C16 groups or relatively pure C12 trialkyl aluminium. Starting materials may comprise C2, C3, C4 or C6 trialkyl aluminium or (C2H5)2AlH.
Patent GB-1524719-A (GB)
Title: Tube extractor
IPC: B25B27/02
Filed: 1977-02-16
Abstract: 1524719 Extracting tubes from tube plates PLANT ERECTION & MAINTENANCE CO Ltd 16 Feb 1977 [29 April 1976] 17416/76 Heading B4C A tube 12 is extracted from a tube plate 14 by a spear 20 comprising a front portion having a tapping thread 22 for screwing into the tube a rear portion provided with flats 24 for gripping by a screwing tool and an intermediate portion provided with an annularly discontinuous increased diameter portion 26. A ram 30 movable in cylinder 32 by hydraulic pressure has an end 36 screw fitted with a flange bearing member 38 having flanges 40 of a size to pass between the annular discontinuities 26 and upon rotation to engage the front shoulders thereof. Stop members (28, Fig. 2, not shown) on portions 26 or 40 stop the rotation when engagement is complete. The ram is surrounded by a spacer tube 44 for bracing cylinder 32 against tube plate 14. The end of the tube has castellations 46 to enable it to avoid the projecting portions of adjacent tubes 12. The spear may have a flange (56, Fig. 3, not shown) which engages the front (58, Fig. 6, not shown) of the flanges (60) of the ram.
Patent GB-278801-A (GB)
Title: Improvements in or relating to the ornamentation of solid materials
IPC: B05D5/06
Filed: 1926-07-13
Abstract: 278,801. British Bead Printers, Ltd., and Heynert, F. A. H. July 13, 1926. Ornamenting.-Solid materials are decorated by the application thereto of condensation products of urea and its derivatives, the products being applied in pattern effect while in the liquid or plastic state, with or without prior incorporation with, or a subsequent coating of, decorative surfacing, material. The condensation products are transformed into the hard final products by heating or otherwise. The solid materials treated include glass, porcelain, rubber, metal, stone, wood, cardboard, celluloid. bone, ivory, &c., and the condensation product may be applied thereto by printing with a block or roller. The surfacing material may consist of glass particles, mica flakes or powder, metal or pearl dust, small metal discs, or fibrous material, such as paper, wood, cotton, or asbestos. The condensation products may be coloured. Specifications 247,001 and 277,091 are referred to.