baber/WOPTO huggingface dataset:
Patent GB-400279-A (GB)
Title: Improvements in or relating to directional wireless signalling
IPC: G01S1/02
Filed: 1932-04-23
Abstract: 400,279. Directive wireless signalling. BOWEN, J. P., Trinity House, Tower Hill, and MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, both in London. April 23, 1932, No. 11740. [Class 40 (v).] A beacon transmits a rotating directional beam modulated with television signals which when reconstituted at the receiver produce a picture giving the name and a portion of a moving compass card giving the. instantaneous direction of the transmitting station, means being provided to maintain synchronism between transmitter and receiver during the periods when no directional signals are received. Alternatively a plurality of differently directed fixed beams may be utilized to give the same information or a fixed single beam for example to give a lead into port may be modulated to give the name and direction of the transmitter on a television receiver. As shown, a rotating aerial 2 is energized by television signals produced by known apparatus 6 .. 10 the image comprising a station identifying panel 5 and the part of a compass card 4 rotating with the aerial 2, which corresponds with the instantaneous direction of the aerial. Synchronizing signals may be transmitted omni-directionally from a further aerial (not shown) working on a different wavelength, or on the same wavelength, the synchronizing signals lying outside the frequency range of the television signals. Alternatively transmitter and receiver may be controlled by independent master frequency devices. The compass card scale markings may be corrected for errors introduced by local surroundings.
Patent GB-308907-A (GB)
Title: Improvements relating to wheel-hubs for chain-driven vehicles
IPC: B60B27/02
Filed: 1928-04-21
Abstract: 308,907. Boult, P. T. O. April 21, 1928. Hubs.- In a wheel-hub for chain-driven vehicles, the sprocket-flange 4 and sprocket 6 are threaded on the reduced end 3 of the hub barrel 1. The other spoke-flange 10 is carried by a sleeve 8 which is threaded or otherwise secured on the reduced barrel-portion 7.
Patent GB-425979-A (GB)
Title: Improvements in and relating to the electrolytic production of fluorine
IPC: C25B1/24
Filed: 1933-06-22
Abstract: An insulating composition consists of 30 parts of aluminium fluoride to 70 parts of ceresine wax.
Patent GB-1224581-A (GB)
Title: Method for preparing highly basic grease and rust inhibiting compositions
Inventor: HUNT MACK WILLIS
IPC: C10M169/00
Filed: 1969-03-06
Abstract: 1,224,581. Highly basic grease and rust inhibiting composition. CONTINENTAL OIL CO. 6 March, 1969 [8 May, 1968], No. 11870/69. Heading C3N. [Also in Division C5] A composition which is particularly suitable as a rust-inhibitor or a grease is produced by (A) forming an admixture comprising (1)2-65% by weight of an oil-soluble dispersing agent consisting of alkaline earth metal salts of hydrocarbyl sulphonic acids, alkaline earth metal salts of carboxylic acids or alkaline earth metal salts of phosphorus-sulphide treated olefins, (2) 5- 80% by weight of a non-volatile carrier material consisting of mineral lubricating oils, synthetic lubricating oils, animal oils, vegetable oils, paraffin wax or micro-crystalline wax, (3)1-6% by weight water, (4) 10-40% by weight of a C 1 -C 3  alkanol, (5) 2-10% by weight of an alkaline earth metal oxide, hydroxide or alkoxide (C 1 -C 3 ), said admixture being characterized further in that the amount of water is from 0À25-5 moles per mole of alkaline earth metal, (B) carbonating the admixture of step (A) to the extent that at least 1À5 moles of CO 2 , per mole of alkaline earth metal, are present in the admixture, and (C) heating the carbonated admixture to a temperature of at least 50‹ C. and thereafter until a substantial change in viscosity occurs. The carbonation results in the formation in situ of an overbased alkaline earth metal-carbonate complex. An optional ingredient of the admixture is a light or relatively volatile hydrocarbon solvent.
Patent GB-588361-A (GB)
Title: Improvements in or relating to governor control
IPC: B64C11/30
Filed: 1943-07-21
Abstract: 588,361. Fluid-pressure servomotorcontrol systems. UNITED AIRCRAFT CORPORATION. July 21, 1943, No. 11879. Convention date, Dec. 17, 1942. [Class 135] Apparatus for controlling, e.g. the pitch of an aeronautical propeller and including a governor-controlled valve 17, is provided with an accumulator 25 containing an inflatable bag 26 and supplied from the pump 19. Liquid leaks past the loosely-fitting piston valve 30 until the pressure in the conduit 32 reaches a predetermined value, when the valve is opened against the action of a spring 38 and liquid flows freely to the accumulator, and is available for supplying the valve 17 if the normal supply fails. A drain conduit 33 is provided.
Patent GB-417731-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: H02P1/20
Filed: 1933-04-24
Abstract: 417,731. Master control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of McNairy, J. W. ; 1019, Washington Place, Erie, Pennsylvania, U.S.A.) April 24, 1933, No. 11920. Convention date, April 22, 1932. [Class 38 (iii).] Non-regenerative braking.-The contactors in a sequential contactor system for traction motors are subjected to opposing mechanical and electromagnetic forces, the former being applied or increased in sequence, and the latter being energized by the motor armature current. Upon gradual operation of a pedal 46 contacts 87 are closed, to energize main contactors 18, 19, 20, contacts 84 being opened to prevent this energization if the operation is too sudden. Further operation of the pedal 46 causes cams 32, 34-37 to act through springs 27-31 and bias contactors 21-25 to their closed positions against the action of holding coils 21H-25H energized by the motor current, and also in the case of contactors 22-25, against locking coils 22L-25L also energized by the motor current. When the mechanical biassing force on the contactor 21 exceeds the pull of the coil 21H the contactor closes to short circuit series resistance 113, and the locking coil 22L of the contactor 22, which closes when its mechanical biassing force exceeds the pull of its holding coil 22H. Thus series resistance 114-116 is excluded in steps and a field diverter resistance inserted by the sequential closure of the contactors 21-25 at a rate which may be varied by varying the mechanical biassing forces on the contactors by manipulation of the pedal 46. Upon operation of a brake pedal 55 contactors 71-74 are closed, whereby the motors are connected in a local braking loop including resistance 113-116 and 142. the holding coils of the contactors 21-25 and the locking coils of the contactors 22-25. The motor fields are excited from the supply through the holding and locking coils of the contactors 21-25 and a resistance 137. The coils of the contactors at this stage are shunted by a high resistance 139. After a time a relay 132, the coil of which is short-circuited by the operation of the braking pedal, opens to discormect the field circuit through the coils of the contactors. When the brake pedal has been operated a certain amount it is coupled to the shaft carrying the cams 32, 33-37 and the contactors 21-24 may be closed in a manner similar to that during acceleration. When the contactor 23 closes it causes the opening of contactors 73, 74 to disconnect the fields from the supply.
Patent GB-493633-A (GB)
Title: Improvements in and relating to cold rolling mills
IPC: B21B39/08
Filed: 1937-04-26
Abstract: 493,633. Rolling. ROBERTSON & CO., Ltd., W. H. A., and BOURNE, A. J. April 26, 1937, No. 11925. [Class 83 (iv)] An inlet guide table for a rolling-mill, and including a work cleaning and tensioning press 1, and adjustable side guides 2, is so mounted on pivot pins 5 attached to lugs 6 on the mill frame, that the whole table can be swung clear of the rolls to allow access thereto. A handle 11 is provided for the pivoting movement. A spring catch 8 co-operating with a member 9 on the mill frame automatically locks the table in operative position, and the catch 8 can be depressed by a handle 10 to effect release. The press 1 may be actuated by screw or, e.g compressed-air. The table may be of the manual or compressed-air operated mechanical feed type for feeding in the work.
Patent GB-1082001-A (GB)
Title: Unsymmetrical 2-ethylsulphinylethyl dithiophosphate and insecticidal composition containing it
IPC: C07F9/165
Filed: 1965-03-20
Abstract: The invention comprises O-methyl-O ethyl-d  -(2 - ethyl sulphinyl ethyl) - dithiophosphate. It is obtained by the action of hydrogen peroxide or bromine and water or O-methyl-O-ethyl - d  - (2 - ethyl mercaptoethyl) - dithiophosphate.ALSO:An insecticidal composition comprises as the active ingredient o-methyl-o-ethyl-s-(2-ethylsulphinylethyl)-dithiophosphate.  It may be applied as an emulsion, alone or in the presence of other known compounds such as o,o-dimethyl-and o,o-diethyl-[-s-(2 ethyl sulphniyl ethyl)-and -s-(2-ethylmercaptoethyl)]-dithiophosphates.
Patent GB-811692-A (GB)
Title: Improvements in or relating to chlorobenzimidazolone compounds
Inventor: DAVOLL JOHN
IPC: C07D235/26
Filed: 1957-04-11
Abstract: The invention comprises compounds of the general formula: <FORM:0811692/IV (b)/1> wherein R is an ethyl or an allyl group and X and Y are hydrogen or chlorine atoms in the combination 5-chloro, 6-chloro- or 5,6-dichloro, and the manufacture thereof by (a) reacting at temperatures above 75 DEG  C. a phenylenediamine compound of the formula: <FORM:0811692/IV (b)/2> with a carbonic acid derivative such as a dialkyl carbonate, an alkyl, aralkyl or aryl chloroformate, a urea, phosgene, an alkyl or aryl isocyanate or urethane or a dialkyliminocarbonate; (b) cyclizing a N-acyl phenylenediamine of the general formula: <FORM:0811692/IV (b)/3> wherein Z is an alkoxy, amino or substituted amino group, at elevated temperature in the presence of a basic condensation catalyst; and (c) subjecting a 1-isopropenyl-chlorobenzimidazolone of the general formula: <FORM:0811692/IV (b)/4> to acid hydrolysis in the presence of a solvent.  Examples describe the preparation by process (a) of 6-chloro-1-ethylbenzimidazolone by reacting 5 - chloro - N1 - ethylphenylene - 1,2-diamine and ethyl carbonate in the presence of sodium methoxide, of 5 : 6-dichloro-1-ethylbenzimidazolone and of 1-allyl-6-chloro-, 5-chloro-, and -5,6-dichloro-benzimidazoles by reacting the corresponding diamines with urea in boiling 2-butoxyethanol; by process (b) of 5- and 6-chloro-1-ethylbenzimidazoles from 4- and 5 - chloro - N1 - carbethoxy - N1 - ethylphenylenediamines respectively, using sodium ethoxide as the basic condensation catalyst; and by process (c) of 1-allyl-5,6-dichlorobenzimidazolone by first reacting 4,5-dichlorophenylene-1,2-diamine with ethyl acetoacetate and then with sodium and 2-ethoxyethanol to give a reaction mixture containing 5,6-dichloro-1 - isopropenylbenzimidazolone, treating this with allyl bromide to give 3-allyl-5,6-dichloroisopropenylbenzimidazolone, and hydrolysing with concentrated hydrochloric acid.  An example describes the preparation of 5,6-dichloro-1-ethylbenzimidazolone by reacting 4,5 - dichloro - N - ethyl - 2 - nitroaniline with butyl chloroformate, hydrogenating the product in the presence of a platinum oxide catalyst and then with sodium and 2-ethoxyethanol.  4 : 5 - Dichloro - and 5 - chloro - N1 - ethylphenylenediamines, 5 - chloro -, 4 - chloro - and 4 : 5 - dichloro - N1 - allylphenylenediamines are prepared by reducing 4 : 5-dichloro- and 5-chloro - 2 - nitro - N - ethylaniline, 5 - chloro -, 4 - chloro - and 4 : 5 - dichloro - 2 - nitro - N - allylanilines, respectively with iron in an aqueous acidic medium.  4 : 5 - Dichloro - and 5 - chloro - 2 - nitro - N - ethylanilines, and 4 : 5 - dichloro - 2 - nitro - N - allylaniline are prepared from 2 : 4 : 5-trichloro- and 2 : 4-dichloronitrobenzenes and ethyl- and allylamines.  5 - Chloro - N1 - carbethoxy - N1 - ethylphenylenediamine is prepared by reacting 5-chloro-N-ethyl-2-nitroaniline with ethylchloroformate and hydrogenating the resultant 5-chloro-2-nitro-N-carbethoxy-N-ethylaniline.
Patent GB-984759-A (GB)
Title: Improvements in taps, bibcocks and the like
IPC: F16K1/14
Filed: 1961-04-04
Abstract: 984,759. Valves. J. REVILL. April 4,1961 [April 4, 1960], No. 12067/61. Heading F2V. A tap comprises a body 1 divided by a valve seat 5 into an inlet chamber having an inlet 2 and an outlet chamber 3 having an outlet 4. A valve closure 11 is located in the inlet chamber and is loaded by a spring 13 towards its seat. A screw 15 having a spigot 14 is prevented from rotation by pins 24 and is moved axially by rotation of a nut 16 to open and close the valve. A rubber pad 18 is provided to be sandwiched between the top of the screw and the nut when the tap is closed. The valve seat may be made of rubber and have a depending seating portion. The nut is fixed to a handle 10a having a skirt which surrounds the valve body.
Patent GB-552135-A (GB)
Title: Improvements in the production of cellulose esters
IPC: C08B3/12
Filed: 1941-09-19
Abstract: 552,135. Cellulose derivatives. BRITISH CELANESE, Ltd. Sept. 19, 1941, No. 12088. Convention date, Oct. 14, 1940. [Class 2 (ii)] Mixed cellulose esters are produced by esterifying cellulose with an organic acid anhydride in the presence of sulphuric acid, ripening the primary ester in solution in the presence of sulphuric acid, adding at least sufficient of a metal compound to neutralize all the acid and esterifying with another organic acid anhydride. The neutralizing agent is preferably a magnesium salt, e.g. acetate or carbonate ; other suitable agents are sodium or calcium acetate or carbonate and zinc acetate or oxide. Ripened cellulose acetate, propionate or butyrate may be esterified with phthalic, succinic, maleic, benzoic or other carboxylic acid anhydride. In the preparation of cellulose acetate phthalate, cellulose is acetylated with a mixture comprising acetic anhydride, acetic acid and sulphuric acid as catalyst in a proportion of 8 to 15 per cent. by weight of the cellulose. The acid content is reduced to between 4 and 8 per cent., preferably 4.5 to 5 per cent., by addition of a neutralizing agent and 20 to 40 per cent., preferably 37.5 per cent. of water, excluding that required for destroying surplus acetic anhydride, is added as such or as a dilute solution of acetic acid and the mixture is ripened at 50 to 60‹C. for from 3 to 7 hours or until the desired acetyl value is obtained. After ripening, the acid is completely neutralized by stirring in additional neutralizing agent, phthalic anhydride is added and the mixture is stirred at 60‹C. for 2 to 6 hours, the acetatephthalate produced being precipitated by the addition of a large amount of water. Specific examples are given.
Patent GB-957330-A (GB)
Title: Improvements in or relating to recirculating ball nut and screw drive device
Inventor: THOMPSON IVAN
IPC: F16H25/22
Filed: 1961-04-05
Abstract: 957,330. Screw-and-nut gearing. PRECISION GEAR MACHINES & TOOLS Ltd. Feb. 27, 1962 [April 5, 1961], No: 12152/61. Heading F2Q. A recirculating-ball nut comprises a body 2 to which is secured at each end an annular cap 3 having a tangentially-disposed slot 10 housing a finger 4, Fig. 4, the finger being shaped to deflect the balls and provide, in conjunction with the wall of the slot and with the end face of the body 2, a passage interconnecting the screw thread with a longitudinal ball-return hole 9 in the body 2. The inner and outer ends of the finger 4 are shaped to conform respectively with the inner and outer circumference of the cap 3.
Patent GB-400946-A (GB)
Title: Improved fabrics and other materials and processes for their manufacture
IPC: D06M11/05
Filed: 1932-04-27
Abstract: By subjecting to a delustring operation filaments, yarns, &c made of cellulose acetate or other cellulose esters or of cellulose ethers, which have been differentially stretched at intervals along their length, differential lustre effects are produced, the fabrics exhibiting a streaky or mottled effect.  The differential stretching may take place during manufacture or subsequently thereto, the yarn being stretched either in the dry state or after wetting with water or a solvent or swelling agent; and it may be carried out by the methods of Specification 371,910.  The yarn to be stretched may be in the untwisted state, or it may be of medium or high twist; after stretching, the yarn may be twisted.  The stretching may be such as to rupture certain of the filaments so producing an imitation spun fibre yarn, as described in Specification 397,137.  The intermittently stretched yarns may be used for the warp or the weft or both, and they may be associated with wool, cotton, or silk yarns or with artificial yarns of different character or even with the same type of yarn but of uniform properties along its length.  The delustring may be achieved as by treatment with hot or boiling aqueous media or with moist steam; and it may be local as by the application of a resist or the employment of a stencil.  A differential crinkling effect consequent on the differential stretching may also be produced during the delustring operation.  By a suitable choice of dyes during a subsequent or simultaneous dyeing operation, for example, by the use of basic dyes, differential colour effects may also be produced.  In examples, a cellulose acetate fabric having a weft of normal yarn and a warp of intermittently stretched yarn is delustred by means of saturated steam; and a mixed fabric having a warp of viscose yarn and a weft of intermittently stretched cellulose acetate yarn is delustred in a boiling aqueous bath containing textile soap, turkey red oil, and xylene. Specifications 323,790, [Class 2 (ii), Cellulose &c.], 370,040, and 375,424 also are referred to.
Patent GB-244337-A (GB)
Title: Improved process of and apparatus for producing coke, gas and tar from solid fuel
IPC: C10B57/10
Filed: 1925-05-11
Abstract: 244,337. Rude, J. May 11, 1925. Retort furnaces; charging and discharging.- In a process for the production of coke, gas and tar from solid fuel in a two stage carbonization process fuel in an internally heated retort a is discharged into a container c hung from rails x and subdivided by partitions e into compartments each of which feeds externally heated retorts b. The air or other fuel heating gas enters a heat interchanger l, Fig. 1, by an inlet n, heats the fuel in the retort a by passage therethrough and passes by pipe q to the combustion chamber g where it meets fuel gas from burners s the hot combustion gases passing through a perforated wall h around retorts b and through a perforated wall i and heat interchanger l. If fuel gas is used as the heat carrying medium to retort a the functions of pipes q and t are reversed. In a modification whereby a high temperature coke is obtained two heat interchangers are used through which the combustion gases pass in succession the heater of lower temperature preheating the contact heating gas and that of higher temperature the resulting gas supplied to the retort combustion chamber. Specifications 204,718, [Class 55 (i), Coking &c.], and 228,673 are referred to.
Patent GB-1048965-A (GB)
Title: Improvements in or relating to rocket propulsion devices
IPC: F02K9/97
Filed: 1964-03-23
Abstract: 1,048,965. Jet propulsion nozzles. ANSTALT FUR DIE ENTWICKLUNG VON ERFINDUNGEN UND GEWERBLICHEN ANWENDUNGEN ENERGA. March 23, 1964 [March 27, 1963], No. 12221/64. Heading F1J. A propulsion nozzle for a solid fuel rocket comprises, mounted in a casing 3, a nozzle body 1 having an axial, bore 4 with an annular rib 7 at the entry 5. The body 1 is of low thermal conductivity chrome-nickel steel (Cr 17 to 19%, Ni 7 to 10%), such that combustion of the propellent causes the rib 7 to be eroded by the combustion gases at a rate dependent on the ambient temperature. Thus the flow area at the rib 7 increases to correspond with the faster rate of burning of the propellent at higher ambient temperatures. The axial length h of the rib 7 is less than 20% of the nozzle diameter D.
Patent GB-493321-A (GB)
Title: Improvements in or relating to diamond tools
IPC: B23P5/00
Filed: 1937-04-29
Abstract: A diamond tool is made by casting a beryllium alloy, which has a high shrinkage and is a good conductor, about the diamonds to form a holder which may be hardened by heat treatment, without damaging the diamonds, and plated with chromium or tungsten-copper, or, if it contains iron, nitrogenized.  The alloy may comprise copper containing 2,5 per cent of beryllium and also, if desired, one or more of the following metals, cobalt, nickel, iron, manganese, silicon, aluminium, and titanium. Copper containing 10 per cent of aluminium, 1,5 per cent of beryllium, and 7 per cent of nickel or cobalt or both may be used. The holder is hardened by heating to between 600 DEG  C. and its melting point, quenched and then heated to 200-500 DEG  C. for 3 or more hours, or the first heating may be omitted.
Patent GB-549039-A (GB)
Title: Improvements in or relating to laminated or fabricated structures formed wholly or in part of cellulosic material
IPC: D21J1/16
Filed: 1941-03-20
Abstract: 549,039. Paper tubes. SHEPHERD, G. R. (Westinghouse Electric International Co.) March 20, 1941, No. 12269/42. [Class 99 (ii)] [Also in Groups VIII and XXIII] A tube composed of at least two superposed layers of which at least one is porous cellulosic material is formed by coating at least one surface of at least one layer with an adhesive composed of polyvinyl alcohol, drying said coating, and, at any convenient time thereafter, wetting the coating, assembling the structure and consolidating the same under pressure. A tube of pre-coated and dried Fuller board sheet 28 is formed on a mandrel 36 with the aid of rollers 42, water being supplied by a brush 44 to the turns after the first, and bonding pressure being applied by a roller 34. Spirally wound tubes may be formed on a driven mandrel 52 on which an uncoated paper strip 62 is wound, followed by a coated strip 64 to overlap the joints of the first, the coating being wetted by a brush 66. Bonding pressure is supplied' by a roll 54. When a discontinuous coating is to be supplied, rubber rolls 78 may apply the adhesive in strips to a backing 72. Instead of applying the adhesive direct to the layers to be built up, sheets of thin strong paper may be coated on each side, dried in an oven and stored in rolls for subsequent use, being then wetted, assembled between the layers to be built up, and then subjected to pressure.