baber/WOPTO huggingface dataset:
Patent GB-798777-A (GB)
Title: Improvements in or relating to means for controlling the supply of liquid fuel to burners
Inventor: WHITMORE JOHN
IPC: F23N1/00
Filed: 1955-11-18
Abstract: 798,777. Valves. DAVIDSON & CO., Ltd. Oct. 15, 1956 [Nov. 18, 1955], No. 33084/55. Class 135. Means for controlling the supply of liquid fuel to an atomizing device and burner comprises a spring-closed valve 17 in the fuel supply line, a diaphragm subject to atomizing fluid pressure and a trip device 31, 41, associated with the valve and diaphragm such that when the atomizing fluid pressure fails the trip device releases the valve to the closed position. The trip device comprises two elements. The first element consists of a bell-crank lever 24, one arm of which engages the underside of a collar 21 on the valve spindle 18. The other arm 30 is in the form of a trigger which coacts with the second element of the trip device, consisting of a pawl 41 pivotally mounted on the end of a spindle, which is secured to the diaphragm housed in the chamber 33. The spindle is spring-loaded to withdraw the pawl from engagement with the trigger, but is opposed by atomizing fluid pressure acting on the diaphragm. On failure of the atomizing fluid pressure the pawl moves to the right permitting the bell-crank lever to rotate anti-clockwise and release the valve 17 to the closed position, thereby cutting off the supply of liquid fuel to the atomizing device and burner. The trip device is re-set manually.
Patent GB-1512223-A (GB)
Title: Reduction of surface contamination of gramophone records
IPC: G11B3/58
Filed: 1976-07-30
Abstract: 1512223 Cleaning gramophone records W H HAMMOND 30 July 1976 [8 Aug 1975] 33125/75 Heading G5R Surface contamination on a gramophone record is reduced by applying an electrically conducting lubricant formed of a mixture of water, glycerine, benzoic acid and disinfectant to the record surface.
Patent GB-754419-A (GB)
Title: Aromatic nitroso compounds as silver oxidizing agents
IPC: G03C5/44
Filed: 1954-11-16
Abstract: 754,419. Photographic bleaching compositions. GENERAL ANILINE & FILM CORPORATION. Nov. 16, 1954 [March 19, 1954], No. 33187/54..Class 98 (2). A photographic silver bleaching composition comprises an aqueous solution of an acid, an alkali metal bromide and a water-soluble tertiary amino-p-nitroso compound of the benzene series, wherein the substituents on the tertiary nitrogen atom are aliphatic radicals containing not more than four carbon atoms or aromatic radicals of the benzene series. The tertiary amino substituents include alkyl, hydroxyalkyl, carboxyalkyl, sulphoalkyl, phenyl, toluyl, sulphophenyl or carboxyphenyl groups. The nitroso compound may bear other substituents in the benzene ring to which the nitroso group is attached, such as hydroxy, alkyl, alkylsulphamyl, arylsulphamyl, alkoxy, or hydroxyalkyl groups. A number of suitable compounds are specified. The nitroso compounds may be made by treating the t.-amino compounds in acid solution with aqueous sodium nitrite, and the resulting solution may be used directly as a bleach bath after the addition of an alkali metal bromide. The preferred acid is hydrochloric acid. The bleaching baths may be used in the same way and at the same point in the processing of photographic film, particularly colour film, as the usual ferricyanide baths. U.S.A. Specification 2,625,477 is referred to.
Patent GB-990232-A (GB)
Title: Improvements in or relating to oscillation generators
Inventor: SARGENT LESLIE MORRIS
IPC: H03B5/28
Filed: 1960-09-27
Abstract: 990,232. Valve oscillating circuits. MARCONI INSTRUMENTS Ltd. Aug. 1, 1961 [Sept. 27, 1960], No. 33189/60. Heading H3F. In a Wien bridge oscillator, an amplifier V12 is back-coupled to the bridge, its grid being connected to the junction point of the resistive arms RC, RD, and its cathode to the junction of the reactive arms A, B via two cathode followers CF1, CF2 in cascade. The bridge may be fed directly from the anode of the amplifier V12 or via a further cathode follower (not shown). The resistive arm RC of the bridge may comprise a current variable resistor so as to stabilize the amplitude of oscillation.
Patent GB-666390-A (GB)
Title: Improvements in interpolymerization
IPC: C09D125/14
Filed: 1949-12-29
Abstract: Soluble, convertible copolymers are formed by heating a mixture of 1 mol. of a castor oil ester of maleic acid or its homologues and having an acid number of 30 to 100, 0.5 to 20 mols. of a copolymerizable mono-olefinic compound, and 6 to 120 mols. of an aldehyde having from 2 to 10 carbon atoms, at a temperature of 25 DEG to 125 DEG  C. in the presence of a catalyst.  Specified aldehydes are acetaldehyde, propionaldehyde, butyraldehyde, benzaldehyde, acrolein, methacrolein, ethacrolein and crotonaldehyde.  Suitable monoolefinic compounds are styrene, p-chloro, p-fluoro, p-methyl, p-trichloromethyl, p-methoxy, a ,p-dimethyl and 2,5-dichlorostyrenes, vinyl naphthalene, aliphatic olefines of 2 to 6 carbon atoms, vinyl acetate, butyrate and benzoate, vinyl ethyl, propyl and benzyl ethers, methyl acrylate, n-butyl acrylate, tolyl acrylate, methyl methacrylate, n-ethyl chloroacrylate, methyl crotonate and the monoolefinic acids, anhydrides, chlorides, amides and nitriles.  The castor oil esters may be obtained by substitution of some or all of the maleic acid or anhydride by citraconic acid or anhydride. Examples of catalysts are benzoyl and acetyl peroxides and tert-butyl hydroperoxide, used in amounts of 0.1 to 10 per cent on the weight of the ester and monoolefinic compound.  The copolymers are isolated by evaporation of the aldehyde or by precipitation through the addition of a non-solvent, e.g. methanol.  The resins may be dissolved in e.g. acetone and/or xylene, and employed as coating, impregnating or laminating compositions, alone or together with resins such as urea-formaldehyde resins.  On heating, these compositions are converted to an insoluble and infusible state.
Patent GB-168273-A (GB)
Title: Improvements in or relating to water-cooling means for internal-combustion engines
IPC: F01P3/04
Filed: 1920-11-25
Abstract: 168,273. Clench, E. C. S. Nov. 25, 1920. Cylinders, cooling.-Vertical air tubes C pass through the water jacket into the casing D of a fan F.
Patent GB-1389983-A (GB)
Title: Electric synchronous motor
IPC: H02K21/40
Filed: 1973-07-12
Abstract: 1389983 Electric motors TOKAI RIKA DENKI SEISAK USHO KK 12 July 1973 [13 July 1972 8 May 1973] 33345/73 Heading H2A In a single phase synchronous inductor motor comprising a stator permanent magnet 1, soft iron rotor teeth 6 and an excitation coil 8, all concentric with one another, an auxiliary stator yoke 12 has projections 12a offset from the centre lines of the magnet poles to ensure starting of the motor. The number of magnet poles is an even multiple of the number of rotor teeth. In the motor shown, the projections 12a axially face the tips of the rotor teeth, there are half as many projections as there are magnet poles, the projections are spaced apart by twice the pole pitch and each projection straddles the boundary between two adjacent poles. The projections may alternatively be disposed radially outside the rotor teeth adjacent the root portions of the teeth, Fig. 4 (not shown). In a modification, Figs. 11-15 (not shown), there are as many yoke projections as there are magnet poles, the projections are spaced apart by one pole pitch and each projection is disposed between the centre line and one circumferential edge of a respective magnet pole. Reference has been directed by the Comptroller to Specification 1,349,577.
Patent GB-521067-A (GB)
Title: An improved erasing device
IPC: B43L19/00
Filed: 1938-11-17
Abstract: 521,067. Erasers ; pencil sharpeners ; cleaning types. DENHOF, W. Nov. 17, 1938, No. 33417. Convention date, Feb. 11. [Class 146 (iii)] [Also in Group XVI] An eraser 11 for use with typewriters is rotated by a flexible shaft 8 driven from a spirally-grooved member 6 carried in suitable supports and actuated by a nut 5 traversed axially but not rotatably. Member 6 is carried by the typewriter or an attachment or stand consisting of a base 1 with side walls 2 and an abutment 3 for the machine. The eraser is carried by a mandrel 10 which may have a taper or polygonal connection with the shaft 8.. The mandrel 10 is encased in a tubular housing 13 serving as a handle and carrying a fan 17 to expel the resultant dust. The Specification as open to inspection under Sect. 91 states also that the eraser may be replaced by a pencil sharpener or a brush for cleaning the type. The tool 44, Fig. 4 (Cancelled), may be driven from the helical shaft 39 rotated by a nut 41 and mounted on arms 33, 31 carried by a guide rod 20. Arm 31 has a sleeve 21 and lug 22 secured to an endless cord 24 engaged by a ratchet drive 23 actuated by a key 25 so as to position the tool. In a modification, Fig. 6 (Cancelled), the tool 11 is carried by bevel wheels having a hand detent 67 and driven by a flexible shaft 55 from a clockwork mechanism 58 rewound by a rack 59 mounted on the carriage 46. This subject-matter does not appear in the Specification as accepted.
Patent GB-1438176-A (GB)
IPC: E21D9/10
Filed: 1973-07-13
Abstract: 1438176 Mining machine COAL INDUSTRY (PATENTS) Ltd 22 May 1974 [13 July 1973] 33469/73 Heading E1F A mining machine comprises two hydraulic circuits 40, 41 for actuating an impact cutter 26 and a ram 27 for moving the cutter along a slide and a pilot operated check valve 54 operable when the ram 27 has advanced the cutter into engagement with the workface to feed excess pressure fluid from the hydraulic circuit 41 associated with the ram 27 to the hydraulic circuit 40 associated with the cutter.
Patent GB-962192-A (GB)
Title: A method of producing selenium rectifiers
IPC: H01L21/06
Filed: 1962-08-31
Abstract: 962,192. Selenium rectifiers. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Aug. 31, 1962 [Sept. 5, 1961], No. 33507/62. Heading H1K.  In a method of producing selenium rectifiers a metallic selenide layer is provided between the metallic carrier electrode and the semi-conductor layer by dipping the electrode in a hydrazine solution containing selenium. An arrangement is described in which the base electrode of iron or aluminium is galvanically nickel-plated and then dipped in a hydrazine bath containing selenium, resulting in a uniform layer of selenide being formed on the electrode. Examples of reagent strength variations yielding comparable results are given.
Patent GB-1166756-A (GB)
Title: Catalytic Process and Novel Compositions prepared therefrom
Inventor: HALIK RAYMOND RICHARD
IPC: C10L1/04
Filed: 1967-07-21
Abstract: 1,166,756. Reforming. MOBIL OIL CORP. 21 July, 1967, No. 33666/67. Heading C5E. A method for preparing a jet fuel having a heating value in excess of 18800 B.T.U/1b. comprises catalytically reforming a paraffin-rich kerosene-boiling-range fraction under conditions of temperature and space velocity selected to retain at least 70% of the paraffin constituents in the feed, employing the relationship of operating conditions as represented by Fig. III for obtaining a selected aromatic to naphthene ratio in excess of 2 and removing aromatics from the reformed product in amounts sufficient to leave not more than 10% of aromatics in the paraffin-rich product. The reforming may also bring about isomerization of normal to isoparaffins and may be preceded by hydrodesulphurization and/or hydrodenitrification. Suitable reforming catalysts include platinum on eta-alumina or on silica-alumina, containing chlorine or fluorine; tungsten and/or nickel on kieselguhr; and chromium oxide on alumina.
Patent GB-752546-A (GB)
Title: Improvements in multi-stage reciprocating compressors
IPC: F04B27/053
Filed: 1954-11-22
Abstract: 752,546. Reciprocating compressors. SPECIALTIES DEVELOPMENT CORPORATION. Nov. 22, 1954 [March 1, 1954], No. 33698/54. Class 8(1). A four stage compressor comprises four cylinders 11, 12, 13, 14 the first and final stage cylinders 11, 14 being vertically aligned, and the cylinders 12, 13 horizontally disposed, the axes of the cylinders 11, 12, 14 meeting on the axis of rotation of the drive shaft 15 and the axis of the cylinder 13 extending above the shaft axis. The piston 17 is slidably connected to a cam 21 carried on an eccentric 16 on the shaft 15 and having parallel faces 24, 25 engaged by cam followers 27, 28 rigid with the pistons 18, 19 and a face 26 at right angles engaged by a follower 29 rigid with the piston 20. Specification 688,739 is referred to.
Patent GB-1470120-A (GB)
Title: Device for flapping-up envelopes
IPC: B31B1/74
Filed: 1975-07-28
Abstract: 1470120 Unfolding envelope closure flaps SPICERS Ltd 28 July 1975 [31 July 1974] 33755/74 Heading B5D [Also in Division B8] A device for unfolding envelope closure flaps 5<SP>1</SP> comprises a driven suction roller 1 which carries successive envelopes 5 under a cross-bar 10 so that the closure flaps 5<SP>1</SP> are engaged and unfolded by the cross-bar. The vacuum applied to the surface of the roller 1 is controlled so that it is interrupted as the envelopes are stripped from the roller 1 by bifurcated guide members 9 which engage circumferential grooves in the roller. The roller 1 includes a flat 13 which merges with a curved peripheral portion of the roller along one longitudinal edge and which is contiguous with a steps (14), Fig. 5 (not shown), along the opposite longitudinal edge. Rows of suction orifices 15 are provided in the flat and the curved peripheral portion adjacent said one longitudinal edge. The position of the cross-bar 10 about the axis of the roller 1 is adjustable. Stop bars 12 which are mounted at the end of a delivery table 3, assist in the removal of the envelopes from slotted discs 4.
Patent GB-605095-A (GB)
Title: Aluminium base alloys
IPC: C22C21/10
Filed: 1945-12-14
Abstract: An aluminium alloy has the following composition:-Mg 2.00-5.00 per cent, Zn 3.00-8,00 per cent, one or more of Mn, Ni, Co 0.25-2.00 per cent in total, Si 0.02-1.50 per cent, Fe 0.02-1.50 per cent, with Sn greater than 0.10 and less than 1.50 per cent, or Sb 0.41-1.5 per cent or both together greater than 0.10 and up to 1.50 per cent in total, Al the remainder.  The alloy may contain Cu not exceeding 0.19 per cent, one or more of Cr, Be, B, Ca, Ti, Nb, Ce, Mo, La, Li, Ag, Ta, Te, Tl, Th, W, V, Zr and Yt not exceeding 1.25 per cent in total, the Cr, if present, being less than 0.50 per cent unless the total of the elements Mg, Zn, Ni, Sb and Cu exceeds 6.00 per cent.  The alloy may also contain one or more of Bi, Pb, Cd, Ba and P not exceeding 0.30 per cent in total, so that the Pb will always be less than 0.10 per cent when Si and Fe are both present in amounts of 0.40 per cent and over. The alloy may be used in the worked condition and may be subjected to solution treatment for example at 490-530 DEG C. for 1/2 to 4 hours, followed by quenching in water or other medium and natural or artificial ageing.  The latter may be carried out at 100-160 DEG C. for 3 to 24 hours, followed by cooling in air.
Patent GB-782055-A (GB)
Title: Process for the manufacture of alkylaminobenzoic acid esters or salts thereof
Filed: 1954-11-23
Abstract: Esters of alkylamino benzoic acids of the formula <FORM:0782055/IV (a)/1> and acid addition salts thereof, in which R1 and R2 may be hydrogen or lower alkyl, aralkyl or cycloalkyl groups or together with the nitrogen form a heterocyclic radical, R3 is a hydrogen atom or a lower alkyl group and R4 represents a lower alkyl group are made by reacting a 1 - amino - 3 - halogen - propanol - (2) of the formula <FORM:0782055/IV (a)/2> with an aminobenzoic acid of the formula <FORM:0782055/IV (a)/3> or an alkali metal salt of the acid or by reacting the amino-halogen-propanol with a corresponding nitrobenzoic acid and converting the resulting nitro-compound into the desired amino-compound by reduction and alkylation.  Aralkyl radicals present at the terminal amine group of the reaction products may, if desired, be split off by catalytic hydrogenation.  The esterification reaction is suitably carried out in solution or suspension in a solvent such as a lower aliphatic alcohol and in particular, isopropyl alcohol. In examples: (1) and (2) propylaminobenzoic acid is treated with g -dimethylamino-b -hydroxypropyl chloride to give p-propylamino-benzoic acid g -dimethylamino-b -hydroxypropyl ester which may be converted into its hydrochloride; (3) p-propylamino-benzoic acid is treated with g -piperidino-b -hydroxy-propyl chloride to give p-propylamino-benzoic acid g -piperidino-b -hydroxypropyl ester as its hydrochloride; (4) p-butylaminobenzoic acid is treated with g -benzylmethylamino-b -hydroxy-propyl chloride to give p-butylamino-benzoic acid g -benzylmethylamino-b -hydroxypropyl ester as its hydrochloride; (5) p-butylaminobenzoic acid is treated with g -benzylcyclohexylamino-b -hydroxy-propyl chloride and the product is treated with hydrogen in the presence of palladium to give p-butylaminobenzoic acid g  - cyclohexylamino - b  - hydroxypropyl ester as its hydrochloride; (6) p-nitro-benzoic acid is treated with g -dimethylamino-b -hydroxypropyl bromide, the resulting p-nitrobenzoic acid g -dimethylamino-b -hydroxypropyl ester, which is separated as the hydrochloride, is reduced with palladium and hydrogen to give b -aminobenzoic g -dimethylamino b -hydroxypropyl ester hydrochloride which is treated with propionaldehyde and reduced with palladium and hydrogen to give p-propylaminobenzoic acid g -dimethylamino-b -hydroxypropyl ester; (7) p-butylaminobenzoic acid is treated with g -dibenzylamino-b -hydroxypropyl chloride and the resulting p-butylaminobenzoic acid g -dibenzylamino-b -hydroxypropyl ester hydrochloride is reduced with palladium and hydrogen to give g -amino-b -hydroxypropyl ester; (8) p-diethylaminobenzoic acid is reacted with g -dimethylamino-b -hydroxypropyl chloride to give p-diethylaminobenzoic acid g -dimethylamino-b -hydroxypropyl ester hydrochloride; and (9) o-butylamino-benzoic acid is treated with g -dimethylamino-b -hydroxypropyl chloride to give o-butylamino-benzoic acid g -dimethylamino-b -hydroxypropyl ester hydrochloride.
Patent GB-450070-A (GB)
Title: Apparatus for measuring forces
IPC: G01L1/02
Filed: 1935-12-09
Abstract: 450,070. Measuring forces. STIEBER, W., 32, Landhausstrasse, Korntal, near Stuttgart, Germany. Dec. 9, 1935, No. 34020. [Class 106 (ii)] Comprises a main cylinder 1 and a piston 2 movable therein, a subsidiary cylinder 5 and piston 7 connected with the main cylinder, and a pressure gauge connected to the main cylinder, the cylinders being connected by a valve 11 for connecting and disconnecting them. The object is to reduce or compensate the effect of friction which is very large when the piston 2 is stationary as in usual apparatus. The valve 11 slides in a nut 15 against the influence of a spring 12 located in a cavity 13 of the piston and seats itself at the end of the duct 6 connecting the cylinders. A passage 9 connects the auxiliary cylinder to a supply 10 of liquid. In use, the plunger 7 is reciprocated raising the head of the valve 11 off the nut 15 at first and afterwards raising the whole piston until the valve rests on the nut again. The piston then falls until the valve is seated when the reading may be taken. In a modification, a separate non-return valve connects the cylinders in addition to the valve 11.
Patent GB-1249004-A (GB)
Title: Improvements in or relating to printing machines
Inventor: JURNY JOSEF
IPC: B41F13/20
Filed: 1969-07-07
Abstract: 1,249,004. Printing apparatus. ADAMOVSKE STROJIRNY NARODNI PODNIK. 7 July, 1969, No. 34157/69. Heading B6C. Blanket cylinder 1 is mounted rotatably by bearings 2 on shaft 3 and is tripped into contact with and away from plate cylinder 30 and impression cylinder 31 by rotation of shaft 3, which is mounted by means of cam discs 5 and rollers 6, 9 in side walls 8. Each disc 5 is held between two fixed rollers 6 and one spring- loaded roller 9, and is rotated by engagement of lever 26 and movable member 17 when cam 32 is turned. The member 17 is separated from an arm 16, extending from shaft 3, by an adjustable screw 18, by which smaller rotations of shaft 3 to adjust printing pressure can be made. The cam discs 5 have profiles which co-operate with the rollers 6, 9 to make possible both tripping and adjustment.
Patent GB-1068435-A (GB)
Title: Improvements relating to devices for protection against certain harmful radiations
IPC: A61N1/16
Filed: 1964-08-20
Abstract: 1,068,435. Screening against radiations. G. R. BERGERIOUX. Aug. 20, 1964 [Aug. 29, 1963], No. 34160/64. Heading A5R. A necklace or bracelet for screening the body from radiations comprises a flexible metal loop closed by a capacitor formed as a separate unit. A metal chain (1) having a metal clasp (1<1>) is interrupted by a capacitor (2) which comprises an insulating plate 3 fixed between metal plates 4, 5 which are attached to the chain. The capacitance may be varied by inserting metal bars 8 in the insulating plate. A metal cable (6) carrying metal beads (7) may be substituted for the chain. The device screens the wearer from cosmic radiations.
Patent GB-792867-A (GB)
Title: Improvements in or relating to endless conveyor systems
Inventor: RUDGE COLIN
IPC: B65G17/02
Filed: 1954-11-26
Abstract: 792,867. Endless belt conveyers. COAL INDUSTRY (PATENTS), Ltd. Feb. 15, 1956 [Nov. 26, 1954], No. 34379/54. Class 78 (1). In a conveyer system including a belt conveyer of the kind in which the belt 1 is carried by shoes 16, e.g. of rubber moulded integrally with the belt, on endless driving cables 2, the belt is caused to deliver the material carried thereby at a position intermediate its ends onto a scraper-chain conveyer 18, which in turn delivers back on to the continuation of the belt 1 beyond the delivery position all the material received by the scraper conveyer both from the belt 1 and from other sources, e.g. a transverse branch conveyer (not shown). The transverse conveyer may deliver into a hopper 20 the bottom of which is formed by the scraper conveyer, while the belt 1 enters the hopper through an aperture in its rear end wall. To provide the necessary difference in level between the belt 1 in advance of and beyond the delivery position, the belt is passed along a ramp formed by pairs of idler rollers 5, 6, 7, 8, 11 engaging the shoes 6 these rollers being of progressively smaller diameter towards the lower end of the ramp, and is then passed around a delivery drum 4 and a further drum leading the belt below the scraper conveyer 18. Pairs of inclined rollers 12, 13 are arranged immediately in advance of the ramp and bear laterally against the shoes 6 to prevent the belt 1 from rising at this point.
Patent GB-1131527-A (GB)
Title: Apparatus for measuring transfer characteristics of an electrical system
Inventor: LIPSCOMBE WILLIAM MARK
IPC: G01R27/32
Filed: 1966-08-01
Abstract: 1,131,527. Measuring gain and phase shift. FEEDBACK, Ltd. Oct. 31, 1967 [Aug.1, 1966], No. 34433/66. Heading G1U. In measuring the gain and phase shift of an electrical system 12, a signal generator 10 produces two phase displaced outputs which are passed through phase sensitive rectifiers 11 to the deflection circuitry of a CRT and the rectifiers are controlled by a low frequency chopper 13 fed by one of the generator outputs after this signal has passed through the system 12 and variable attenuators 14. The direction and length of a vector produced on the CRT screen respectively represent the phase shift and gain of the system 12. In a modification, Fig. 2 (not shown) the signal generator produces three phase displaced outputs which are fed through phase sensitive rectifiers to a delta-connected three-phase deflection winding of the CRT. In another modification, Fig. 3 (not shown) the switch 13 alternately connects each rectifier input to earth and a capacitor connects the rectifier output to a second switch which alternately connects the capacitor to the CRT deflection circuitry and to earth.