baber/WOPTO huggingface dataset:
Patent GB-456400-A (GB)
Title: Improvements in or relating to methods and means for making articles formed by a helical or like band
IPC: B21C37/12
Filed: 1936-02-13
Abstract: 456,400. Making helical tubes. BEAUMONT, H. M. E. DU B. DE, Hameau de la Fontaine, Moulineaux, Seine Inferieure, France. Feb. 13, 1936, No. 4388. Convention date, Feb. 13, 1935. [Class 83 (iv)] In making helically jointed flexible tubes &c., a strip is deformed on a surface of revolution to a section A<1>, B<1>, C<1> determined according to Bours' theorem or an approximation thereof and then by axial displacement of the strip without stressing the material is shaped to a helicoid of section A B C whilst the strip is under tension. The strip passes tensioning rollers and is then shaped to a former 1 by rollers 107. The strip is then drawn axially from the former by rollers 14, 15, 16. In making non-circular tubes the former 1 is shaped according to the section desired.
Patent GB-1154532-A (GB)
Title: Time Slot Generators
IPC: H03K5/15
Filed: 1967-01-30
Abstract: 1,154,532. Counters; timing signals. LITTON INDUSTRIES Inc. 30 Jan., 1967 [1 Feb., 1966], No. 4536/67. Heading G4A. [Also in Division H3] A generator of output pulses sequentially on different lines comprises a combination of an even number of inverting gates and bi-stable circuits interconnected so that each gate produces an output signal representing one of the possible combinations of states of the bi-stable circuits, the latter being set and reset by the outputs of the gates; the gates are divided into two sets which receive respectively two-phase clock signals and also two separate control signals. In Fig. 1 negative pulses are produced at terminals 21-28 in sequence at instants controlled by positive clock pulses applied alternately on lines 40 and 41, with overriding control by positive signals on lines 30 and 31. The eight NAND or NOR gates T1-T8 are interconnected with bi-stable circuits 10, 12, 14, each of which is itself formed of two crosscoupled inverting gates. Assuming that positive voltages are continually present on lines 30 and 31 and all three bi-stables are initially in the " reset " state, i.e. the R outputs are high and the S outputs are low, the first clock pulse at 40 changes over gate T 1  to produce a negative pulse at 21 and set bi-stable 14. The next clock pulse (at 41) changes over gate T2 to produce a negative pulse at 22; this sets bi-stable 12 and consequently changes gate T 1  back to restore output 21 to the datum level. Subsequent clock pulses alternately at 40 and 41 produce the following changes in the bi-stable circuits: reset 14, set 10, set 14, reset 12, reset 14, reset 10, these being the result of successive gates T3-T8 being changed to give a negative output; the operation of the bi-stable circuits causes each preceding gate to return to its former state. If only six outputs are desired, the connections to and from the bi-stable circuits are rearranged accordingly. Thus, to energize T 1 , T 2 , T 3 , T 6 , T 7 , T 8  in succession the bi-stables should operate in the following sequence: set 14, set 12, set 10, reset 12, reset reset 14, reset 10. Alternatively, for T 2 -T 7  in sequence, bi-stable 14 should start in its set state: set 12, reset 14, set 10, set 14, reset 12, reset 10. Similar connections can be made for four outputs, one bi-stable circuit then not being used. The number of bi-stables can be increased to 4 or 5 to cater for up to 16 or 32 outputs respectively. By omitting the control signal on 30 or 31 the circuit will stop at the next even or odd-numbered output pulse respectively, otherwise the cycle will repeat itself indefinitely. The operation can be stopped by removing both control signals. The inverting gates can be AND circuits followed by inverters. The circuit is useful for providing the timing signals for a computer.
Patent GB-1210811-A (GB)
Title: Improvements in lubricating compositions
Inventor: FORBES ERIC SIMON
IPC: C10M169/00
Filed: 1967-01-31
Abstract: 1,210,811. Lubricants. BRITISH PETROLEUM CO. Ltd. 10 Jan., 1968 [31 Jan., 1967], No. 4581/67. Heading C5F. Lubricants comprise a mineral oil, 0À1-20 wt. per cent of a di-ester and 0À1-20 wt. per cent of a disulphide of formula E-S-S-F, where E and F are each alkyl, cycloalkyl, aryl, alkaryl or ester substituted such groups, at least one of E and F containing less than 20 carbon atoms. Sulphides specified @ edi-n-butyl, di-cyclohexyl, diphenyl, dibenzyl and 2,21- (dicarboethoxy)-diethyl disulphide. Several examples of diesters are given.
Patent GB-452835-A (GB)
Title: Improvements in or relating to household devices for straining, chopping and crushing
IPC: A47J19/02
Filed: 1936-02-14
Abstract: 452,835. Mashing and straining devices. MANTELET & BOUCHER, 11, Rue Jules Ferry, Bagnolet, Seine, France. Feb. 14, 1936, No. 4602. Convention date, Nov. 26, 1935. [Class 28 (ii)] [See also Group I] In a mashing and straining device for kitchen use, the container is provided with a handle and with two fixed or detachable legs which are adapted to rest on a table or other support and are of sufficient length to allow a plate, dish, &c. to be placed between the table and the base of the container. A rotary masher 4 actuated by a handle 5 is disposed above a strainer 2 at the bottom of a container 1 provided with a wire handle 9, which is fitted with a nonconducting grip 11 and is formed in one with spaced legs 12, 13 adapted to support the container above a plate a on a table &c. b. The branched parts 10 of the wire are soldered around the sides of the container 1, and the legs 12, 13 are bent downwards and outwards and looped at their ends to receive rubber &c. blocks 16 ribbed to grip the table, the ends of the legs, in order to ensure stability, being at an equal or greater distance from the axis of the rotary handle 5 than the outer part of the handle grip 7. The inner parts of the handle and legs are adapted to rest on the rim of a saucepan.
Patent GB-540681-A (GB)
Title: Improvements in radio direction finding equipments
IPC: F15B21/04
Filed: 1940-03-12
Abstract: 540,681. Directive wireless systems. STANDARD TELEPHONES & CABLES, Ltd., and EARP, C. W. March 12, 1940, No. 4604. [Class 40 (v)] In direction finding equipment which may be of the kind described in Specification 490,940 or of the switched cardoid type in which signals are used from two or more separately tuned antennae, the amplifier following the tuned circuit in each individual current path is provided with negative feedback. In this way little damping is imposed on the input circuits and a good signal noise ratio is obtained and errors due to phase changes are minimized. The Figure shows loop aerials L 1 , L 2  at right angles to one another and a sense aerial V. The balanced modulators V 1 , V 2  and V 3 , V 4  give negative feedback to the tuned input circuits by windings W 1 , W 2  and are coupled in parallel to an amplifier V 5  the output from which is fed in parallel with the output of amplifier V 6  fed from the aerial V. Negative feedback is applied, by winding W 3 , to the tuned input circuit of amplifier V 6 . The output from circuit TC 4  is detected and applied to winding M of indicator I which is also fed with switching frequency from the oscillator circuits O 1 , O 2  as described in Specification 490,940.
Patent GB-213212-A (GB)
Title: Improvements in turning lathes
IPC: B23Q5/40
Filed: 1922-12-18
Abstract: 213,212. Wade, F. R., and C. A. V. Small Tools, Ltd. Dec. 18, 1922. Turning.-A small lathe such as is described in Specification 212,976 is provided with means for preventing axial movement of the longitudinal feed-screw, the cross-feed screw and/or the tailstock adjusting screw. The longitudinal feedscrew g which is mounted within the tubular bed a is operated by a hand-wheel k and is provided with a groove l to receive two keys m, m fitting in a slot n in the bearing o. The inner ends of the keys are shaped to fit the spindle as shown in Fig. 2 while the outer ends are curved to correspond with the bearing o which is flanged at q and is secured to the bed by screws r. The cross-feed screw u is similarly mounted in a flanged bearing x secured to the slide-rest by screws y, and is held axially by means of keys u. The back centre 6 of the tailstock h is square in cross-section and is adjusted by a screw 9 operated by a hand-wheel 10 and held against axial movement in its bearings 12 by locking-keys 11 in the manner described above.
Patent GB-1374813-A (GB)
Title: Fuel supply systems for gas turbine engines
IPC: F02C7/26
Filed: 1971-02-15
Abstract: 1374813 Gas turbine engine fuel systems JOSEPH LUCAS (INDUSTRIES) Ltd 31 Jan 1972 [15 Feb 1971] 4624/71 Heading F1G In a gas turbine engine fuel system as claimed in Specification 1359650, there is provided a fuel injection device including a further chamber, means for charging the further chamber with fuel, and means operable during engine starting for discharging the contents of the further chamber to a position 42 downstream of the control valve outlet 18. One embodiment of the fuel injection device 37 comprises a diaphragm 39 which is moved to the right by a spring 46 to draw fuel  into a chamber 38 from the inlet side of the fuel pump 10 via a non-return valve 40, air on the right-hand side of the diaphragm being expelled to atmosphere via a restrictor 47. When the engine is being started, a solenoid valve 44 is energized to admit air to the right-hand side of the diaphragm 39 from a high-pressure source 45, thereby moving the diaphragm to the left to discharge fuel from the chamber 38 to the engine via a non-return valve 41. Back-flow is prevented by the non-return valve 40 and a further non- return valve 43. In another embodiment, the fuel injection device 55, Fig.2, is connected via a passage 48 to the point 42 so that, with the engine running, fuel under pressure enters a chamber 56 to move a diaphragm 49 to the right and compress a spring 51, the diaphragm being retained in this position by a latch 53, 54. Next time the engine is started, a solenoid 55 is energized to release the latch, and the spring 51 moves the diaphragm 49 to the left to discharge fuel from the chamber 56 to the engine.
Patent GB-104942-A (GB)
Title: Improvements in or relating to the Recovery of Ammonium Chloride as a By-product in the Manufacture of Gas or Coke.
IPC: C01C1/16
Filed: 1916-03-31
Abstract: 104,942. Myers, E., and Shelton Iron, Steel, & Coal Co. March 31, 1916. Ammonium chloride, recovered from gas by washing in the known manner with water at not less than 80‹ C. and 401b, pressure, is decolourized by agitating with preferably finely-divided carbon, the agitation being effected, for instance, by steam with or without air. It is preferred first to evaporate the solution, grind the solid salt with about 2 per cent. of its weight of nitro-hydrochloric acid, and dissolve in water, the solution then being treated with the carbon and boiled. The solution is finally neutralized with ammonia, filtered, and crystallized.
Patent GB-1210601-A (GB)
Title: Rocket propulsion system
IPC: F02K9/44
Filed: 1968-01-30
Abstract: 1,210,601. Rocket propulsion. MOTORENUND TURBINEN-UNION MUNCHEN G.m.b.H. Jan.30, 1968 [Feb.11, 1967], No.4832/68. Heading F1J. The invention relates to a rocket propulsion system using cryogenic propellant components for example liquid hydrogen and liquid oxygen, wherein one or more of the propellants are, prior to launching of the propulsion system, heated by the ambient temperature and converted to the gaseous state and in which after the starting phase the liquid propellants are heated by heat transfer from the combustion chamber and propulsion nozzle and are supplied into the combustion chamber in the gaseous state. In Figs.1 and 2 the system comprises combustion chamber 1 and propulsion nozzle 2 and propellant storage tanks 14, 19, one propellant, say fuel, passing from tank 14 through line 15 and thence through passages 9 extending along the nozzle 2 whereby the nozzle is cooled and the fuel converted to the gaseous state, the gaseous fuel then passing through line 18 to injector assembly 4, 6 into the combustion chamber. Similarly, the other propellant say oxidizer passes from tank 19 through line 20 and thence through passages 8 extending along the combustion chamber 1 whereby the combustion chamber is cooled and the oxidizer converted to the gaseous state, the gaseous oxidizer then passing through line 22 to injector assembly 5, 7 into the combustion chamber. The supply lines 15, 20 are not insulated so that at starting the fuel and oxidizer in the lines are converted to the gaseous state by the ambient temperature. The tanks 14 and 19 are however insulated as indicated at 23, 24. In Fig.4 (not shown), the gaseous propellants are mixed in line 30 before discharge into the combustion chamber and metal powder is injected into the gaseous propellant mixture. In Fig. 5 additional lines 32, 33 lead from the upper parts of the propellant tanks 14, 19, valves 34, 35 being provided in the lines. The lines 32, 33 connect with lines 15, 20 downstream of valves 36, 37 all respectively. Gaseous fuel and oxidizer forming in the tanks 14, 19 passes through lines 32, 33 and thence to the combustion chamber. In Fig.7 (not shown) reservoir chambers 40 are provided in the propellant supply lines adjacent to control valves 4, 5. In Fig.9 a main propulsion system 1 and an auxiliary propulsion system 43 are provided. Fuel and oxidizer are contained in tanks 14, 19 as before, liquid propellants passing through lines 45, 46 to the main propulsion unit and gaseous propellants formed in the tanks passing through lines 47, 48 under control of valves 50, 49 to the auxiliary propulsion unit.
Patent GB-692021-A (GB)
Title: Device for hygienically storing and releasing milk bottle caps and the like
IPC: B67B3/062
Filed: 1948-02-18
Abstract: 692,021. Reservoirs for bottle capsules; dispensing devices. DUNLOP, R. B. March 18, 1949 [Feb. 18, 1948], No. 4840/48. Classes 18, 125(ii) and 125(iii) A magazine for skirted closure caps e.g. for milk bottles, comprises a tubular holder 1 mounted on a base plate 3 and having a tubular extension 4 at its upper end secured by a bayonet fastening 7, 8, the extension having inwardly sloping indentations 5 spaced equidistantly around its top edge. Inside the tube 1 is a plunger 10 which is urged upwardly by a spring 11 and which can be pressed down and held in its lowest position by a handle 12. In use, the magazine is loaded by removing the extension 4 and placing a stack of nested caps 9 in the tube to rest on the lowered plunger 10. The extension is replaced and the plunger released, the top cap being retained by the indentations 5 which engage its skirt 9a. To remove a cap a lifting force is applied to the top cap, for example, by a suction grip, the skirt 9a being slightly deformed as it passes over the indentations which then retain the next cap as the stack is fed forward by the spring 11.
Patent GB-103393-A (GB)
Title: Improvements in Mechanism applicable for Transmitting Motion to the Wheels of Vehicles.
Inventor: HOLROYD JACKSON
IPC: F16D41/16
Filed: 1916-04-03
Abstract: 103,393. Holroyd, J. April 3, 1916. Free-wheel gearing. -Relates to clutch mechanism for transmitting motion from a shaft to a wheel &c. in either direction and permitting the wheel to overrun, which may be used as a substitute for the differential gear on a motor-vehicle. In the form shown, two ratchet-wheels C, D with oppositely-directed teeth are fixed on the driving-axle B of a vehicle inside a wheel hub A loose on the axle. A pivot E in the hub carries two oppositely-directed pawls c, d one or other of which is brought into engagement with the corresponding ratchet-wheel, according to the initial direction of the axle B, by frictionally-driven gearing F. The gear-wheel f is loose on the axle B, but frictionally connected with the wheels C, D by washers pressed by springs f<1>. When the axle B starts to rotate, the wheel f is carried forward by the ratchet-wheels and rocks the sector F connected with the pawls, causing one of the pawls to engage with its wheel and drive the hub in the same direction as the axle. Fig. 5 shows the device applied to the hubs of two wheels of a motor-vehicle mounted on an axle B driven by bevel-gearing, and it enables the wheels to be driven in either direction or to overrun in rounding curves. In a modification, the two ratchet-wheels are mounted on a sleeve on the wheel hub, and the pawls are carried by an enclosing-casing driven by a sprocket-wheel mounted on it, the axle being stationary. Any suitable device may be used to bring the pawls into gear by the initial movement of the axle.
Patent GB-534583-A (GB)
Title: Improvements in and relating to bootees, shoes, slippers and like articles of footwear
IPC: A43B3/10
Filed: 1940-03-15
Abstract: 534,583. Boots &c. JEFFRIES, C. W., and PADMORE & BARNES, Ltd. March 15, 1940, No. 4898. [Class 17 (ii)] A shoe or slipper of the type having a turned over tongue 2 and an upper with a turned over top 1, Fig. 1, is arranged so that the tongue can be raised to the position shown in Fig. 2, and the upper turned up so as to overlap the tongue, to which it is secured by press studs 4 or other fastenings. The tongue is formed with holes 5 through which the shoe lace is threaded before being tied, as shown in Fig. 1.
Patent GB-667101-A (GB)
Title: Salt crystals
IPC: C01D3/26
Filed: 1949-02-23
Abstract: Low bulk density salt is produced by evaporating, suitably at 35 DEG -130 DEG C. and appropriate pressures, brine containing a modifying agent, substantially in the absence of air, and in such a manner that crystallization mostly takes place in the body of the brine and with insufficient agitation to disintegrate the crystals so obtained.  The modifying agent is a substance which inhibits crystallization at the centre of the faces of the crystal, thereby causing the formation of hollow-faced cubes or octahedra, or in the limit, due to inhibition of crystal growth on the edges, crystals having spiky growths and a bulk density of 0.7 grm./c.c. Suitable modifying agents are (1) substances having octahedrally-co-ordinated complexions, e.g. K3[Fe(C2O4)3], FeK[Fe(CN)6], Na2[Fe (NO)(CN)5], K4[Fe(CN)6], K3[Fe(CN)6], [Co(NO3)(NH3)5](NO3)2, [Co(NH3)4(H2O) Cl]Cl, K[Co(NH3)2(NO2)4], (ii) water-soluble salts of mono- or polycarboxylic acids having not more than 20 carbon atoms, e.g. sodium palmitate, laurate, stearate, gluconate, formate, phthalate, fumerate, chloracetate, aminacetate, potassium malate and ammonium salicylate and maleate; (iii) substances capable of giving aqueous solutions containing 35-80 per cent thereof in which salt is only 1-2 per cent soluble, and which make a very viscous solution, e.g. glycerol, ammonium nitrate, caustic soda; calcium chloride, ethylene glycol, mannitol, glucose, fructose and sucrose.  Amounts used vary between 0.00005-0.0005 per cent for ferro-and ferri-cyanides and 20-60 per cent for the third class of substances in the brine.  A statement of the art refers to the addition of soap, starch, alum, glue, butter, &c. to brine evaporated in an open pan.
Patent GB-372431-A (GB)
Title: Improvements in or relating to a method of and means for the reproduction of photographically recorded data for the purpose of evaluation or computation
IPC: G03B21/134
Filed: 1931-02-16
Abstract: 372,431. Copy-holders. ZEISS IKON AKT.-GES., 72, Schandauerstrasse, Dresden, Germany. Feb. 16, 1931, No. 4913. Convention date, May 15, 1930. [Class 100 (iii).] In a method of reproducing and computing photographically recorded data, the data recorded on two or more films are exhibited by means of an optical-projection apparatus in groups of corresponding items, either simultaneously or one shortly after the other, and the separate groups of data are evaluated by means of a calculating-machine. The films may bear, for example, the readings of a large number of counters for recording the telephone calls made by many subscribers, the different sets being taken, say, at intervals of a month. The corresponding items are subtracted from one another by means of the calculating- machine, the difference being then multiplied by the cost of the call, and the result printed. The indications on two films A, Fig. 1, which may be side by side or superposed, are thrown by a projection apparatus 1 on to a screen 2. The apparatus is connected electrically or mechanically with a calculating-machine 3, by the operation of which the films are intermittently fed both lengthwise and transversely, so as to present the data in succession. The readings may be in lines of ten on each film, as shown in Fig. 4, and, after one line has been projected, the films are advanced a step and are then traversed in the opposite direction, so as to exhibit the next line. The lateral movement of the apparatus is effected by means of a screwed spindle 11, which is moved endwise by an internally-threaded gear wheel operated by ratchet mechanism 9 and an electromagnet 6, the circuit of which is closed at each operation of the calculating-machine. A similar mechanism, acting on the spindle 11, serves to traverse the apparatus in the opposite direction. The endwise movement of the films is effected by ratchet mechanism 18 and a magnet 16, the circuit of which is closed after ten operations of the machine. When the films are superposed, they are relatively displaced lengthwise, so that the data do not obscure each other. Signal lamps indicate the reaching of the end of a line of data, and the end of a group of ten lines.
Patent GB-561011-A (GB)
Title: Improvements in or relating to the manufacturing of basic open-hearth furnace iron and steel
IPC: C21C5/04
Filed: 1942-04-15
Abstract: 561,011. Iron and steel manufacture. BOWDEN, J. J., and SUDA, J. S. April 15, 1942, No. 4998. [Class 72] In the manufacture of iron and steel in the basic open-hearth furnace, the oxide phase of the final slag is controlled by incorporating Al2O3 therewith in such proportion that the ratios of AI.03 to Fe2O3 in the final slag is from 3 to 2 to 2 to 7 or to ensure the presence of 1.5-7 per cent of Al2O3 in the slag. The Al2O3 may be incorporated in the slag by mixing with the limestone charge 2-12 ¢ per cent of a compound containing or capable of yielding sufficient aluminium oxide to convert the reactive calcium ferrites in the slag into non-reactive calcium alumino-ferrites. In an example, a mixture of 30 parts of limestone and 1-6 parts of a cement containing alumina, e.g. in the form of bonded lumps or briquettes is used.