baber/WOPTO huggingface dataset:
Patent GB-1415930-A (GB)
Title: Power-assisted steering gear
IPC: B62D5/06
Filed: 1973-06-12
Abstract: 1415930 Power-assisted steering AUTOIPARI KUTATO INTEZET 12 June 1973 27956/73 Heading B7H A crank 5 connects one end of a doubleacting piston 6 to a worm shaft 4, the opposite end of the piston being closed by a cover 7c having an extension 7b. The extension 7b is sealed in a bore 13a. A rotatable control valve 8 is fitted within the piston 6, such that with a steering spindle 12 in neutral position oil supplied by a pump, not shown, flows through inlet 14, bore 15, bore 19, bore 20, inlet 10, channel 9 to the valve 8 and returns to an outlet 25a through the extension 7b. When the spindle 12 is rotated the valve 8 is actuated so that oil flows to one or other end of the piston, thereby to move the piston 6 to rotate the worm 4 in the corresponding direction. Oil driven out from one or other end of the piston flows through radial bore 24, tubular extension piece 7b, return space 25 and oil outlet 25a. An annular space between the inner surface of the cylinder 1 and the outer surface of the piston 6 communicates with space 25 through bearings at either end of the valve 8, thereby avoiding the generation of high pressures in the annular space which lead to deformation of the piston.
Patent GB-731706-A (GB)
Title: Preparation of vitamin b-12
IPC: C07H23/00
Filed: 1952-11-06
Abstract: Vitamin B12 is obtained by growing a microorganism of the class consisting of Actinomycete ATCC No. 11071 and Mutant ATCC No. 11072, in a suitable sterile, aqueous, nutrient medium containing assimilable sources of carbon, nitrogen and cobalt, whereby fermentation results with the production of Vitamin B12 which is recovered.  Prior to the recovery of Vitamin B12 the broth is subjected to cell rupture, e.g. by treatment with sonic waves.  The fermentation may be carried out in the temperature range 30 DEG  C. to 37 DEG  C. and the yield of cobalamine enhanced by the addition of cyanide ion or nitrile. The carbon source consists, at least in part, of (1) a fat or (2) a fat acid having more than 14 carbon atoms in the molecule.
Patent GB-800513-A (GB)
Title: Improvements relating to envelopes or bags
Inventor: CRAWSHAW BERNARD WILTON
IPC: B65D85/57
Filed: 1955-10-03
Abstract: 800,513. Envelopes. DARTON MANUFACTURING CO., Ltd. Sept. 18, 1956 [Oct. 3, 1955], No. 28055/55. Class 146(2) [Also in Group XVII] An envelope or bag comprises a sheet of paper, card, or plastic folded over on itself and secured along its side edges, with an inside lining of polythene or other heat sealable plastic sheet material sealed thereto at its edges at the open end, (the width of the lining being no greater than the width between the places where the sides of the bag are secured together.) The folded lining 3 on a metal plate 4 may be inserted in the envelope, as in Fig. 2, and sealed continuously or discontinuously at the edges by heated platens applied externally of the envelope or by heating elements incorporated in the plate, the plate 4 then being withdrawn. Alternatively envelope and lining sheets 6, 8 may be joined at 9, 10, 11, folded at 11, and the envelopes completed by means of flaps 7.
Patent GB-599054-A (GB)
Title: Improvements in or relating to molding compositions and articles thereof
IPC: C08K5/00
Filed: 1945-10-24
Abstract: Shaped or moulded articles resistant to impact at very low temperatures are prepared from a composition comprising cellulose acetate having an intrinsic viscosity above 1.7 and a combined acetic acid content preferably between 52 and 56 per cent and a plasticizer. Suitable plasticizers which may be employed in admixture are numerous phthalic acid esters, diand tri-ethylene glycol dipropionate and diacetate, glyceryl triacetate and tripropionate, pentaerythritol tetra-acetate and diacetate-dipropionate, the mixed acetic-propionic or aceticbutyric esters of ethylene glycol, the polyglycols, glycerine or pentaerythritol, triphenyl phosphate, camphor and toluene ethyl sulphonamide.  Dyes, pigments, lubricants, waxes and resins may also be added to the composition.  The cellulose acetate of high intrinsic viscosity is prepared by effecting rapid controlled achievement of peak temperatures during esterification.  An example of the preparation of cellulose acetate is given in which cotton linters pretreated with acetic acid are agitated with a mixture of methylene chloride, acetic anhydride and concentrated sulphuric acid and the charge is warmed to an initial peak temperature of 51.5 DEG C. in 11 minutes.  The temperature is then raised to 55 DEG  C. 25 minutes after the commencement of acetylation, and after a total period of 5 3/4 hours hydrolysis is effected by the addition of water containing sulphuric acid.  The acid is subsequently neutralized by sodium acetate and the flake precipitated in water.
Patent GB-519727-A (GB)
Title: Improvement in television receivers
IPC: H04N5/60
Filed: 1938-09-28
Abstract: 519,727. Multiplex wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 28, 1938, No. 28169. Convention date, Sept. 29,1937. [Classes 40 (iii) and 40 (v)] In a superheterodyne television receiver for the reception of associated picture and sound signals, in which the sound I.F. signals are transferred to a superheterodyne broadcast receiver, a trap circuit is employed to prevent the local oscillator of the broadcast receiver interfering with the vision I.F. signals. The input signals are supplied from the aerial via the tunable circuits 12 which have a wide pass range to the first detector 10, which is also fed by the local oscillator 22. The vision I.F. amplifier 11 is connected to the first detector over a band pass coupling circuit consisting of tuned primary and secondary circuits with a coupling coil 28. The primary circuit consists of adjustable inductance 26 and the valve and distributed capacity 36. Similarly, the secondary circuit which is connected through the blocking condenser 25 consists of the adjustable inductance 27 and the valve input capacity 37. The primary and secondary circuits are so coupled and tuned as to pass the band of picture signals and to reject the sound signals. The broadcast receiver 24 is supplied with sound signals by a conductor 41 leading from the high potential end of coil 28 through a parallel resonant circuit 42, 43 and a condenser 44 which tunes the whole circuit to be series resonant to the sound I.F. The parallel circuit 42, 43 is tuned to the local oscillator frequency of the receiver 24 and voltage from this local oscillator, whose frequency falls within the vision I.F. band, is thus prevented from reaching the amplifier 11. Switches 51, 56, and conductor 53 are provided to enable the broadcast receiver to be disconnected from the band pass coupling and connected to the mid-point of the input coil 16, thus utilising the television antenna and transmission line for normal broadcast reception. The switches 51, 56 are preferably ganged with the television receiver power switch. The first detector valve 10 is of the pentode type and has the screen and suppressor grids connected together to increase the neutral conductance. For the same reason the vision I.F. amplifier has its screen and suppressor electrodes connected, but a resistor 38 is included to prevent oscillation.
Patent GB-279845-A (GB)
Title: Devices for generating electrical oscillations by means of piezo electrical crystals
IPC: H03B5/34
Filed: 1927-10-24
Abstract: 279,845. Radiofrequenz Ges., and Eberhard, H. Oct. 26, 1926, [Convention date]. Thermionic generators.- In a piezo-electrically-controlled oscillator a quartz crystal 9 is connected between the grid 3 and an intermediate point 10 of an inductive impedance in the plate-filament circuit. Oscillations are generated at the natural frequency of the crystal when tho upper coil or coil section 7 has approximately that resonance frequency. A small variable condenser may be connected across the coil 7. The coil 8 should be of large inductance compared with the coil 7.
Patent GB-678348-A (GB)
Title: Improvements in or relating to a method and machine for cutting shapes from sheet material
Inventor: COLLINSON FREDERICK BAKER
IPC: B26F1/42
Filed: 1949-10-07
Abstract: 678,348. Cutting designs. COLLINSON'S PATENTS, Ltd. Oct. 7, 1949, No. 28254/50. Divided out of 678,270. Class 31 (i). In a machine for cutting shapes from sheet material, of the type comprising a pattern of knives and a roller, the material being placed on the knives and then traversed by the roller, the knife pattern comprises several longi. tudinal knives bridged at intervals by separate transverse knives. As shown in Fig. 3, a pattern of knives for use in a machine for cutting shoe soles comprises sinuous longitudinal knives 26 which extend continuously for the whole length of the pattern and transverse knives 27 located between the longitudinal knives. The knives are formed with lateral projections 26b for notching the soles as described in Specification 579,343, which is referred to.
Patent GB-645194-A (GB)
Title: Improvements in starters, more particularly for internal combustion engines
IPC: F02N15/02
Filed: 1947-10-22
Abstract: 645,194. Clutches. BENDIX AVIATION CORPORATION. Oct. 22, 1947, No. 28281. Convention date, Nov. 12, 1946. [Class 80(ii)] [Also in Group XXVII] In an engine starter comprising a rotatable member 10 adapted to be axially movable into engagement with an element 14 of an engine to be started, and an axially stationary rotor, such as the nut 24, operatively connected with the member 10 to effect axial and rotative movements thereof, there is provided means, such as the ring 90, adapted to hold the member 10 frictionally against rotation during the axial movement into engagement with the element 14 and thereafter to release the member 10 for rotation by the rotor 24 to rotate the element 14. When a shaft 62 is rotated through a speed reducing gear, not shown, it drives a barrel 46 by means of sun and planet gearing. The barrel 46 is connected by an adjustable multi-plate friction clutch 72 to the nut 24 in which is threaded an axially movable screwshaft 22 that has a splined connection 20 with the jaw member 10. Upon rotation of the nut 24 the screwshaft 22 moves leftwardly until a shoulder 26 on this shaft engages a corresponding shoulder 28 on the nut 24. Between a flange 42 secured to the screwshaft 22 and a flange on a mesh rod 32, bolted to the member 10, a sealing washer 36 being interspaced between these two latter members, is a coil spring 30 which due to the leftward movement of the screwshaft causes the member 10 to engage the jaw member 14. Upon abutment of the shoulders 26 and 28 axial movement of the screwshaft 22 ceases and the latter is rotated with the nut 24 and through the spline connection 20 drives the engine. The outer periphery of the member 10 is stepped the two diameters being joined by a radius 84, and in the inoperative position of the starter the smaller diameter is engaged by a fluid seal 86 and the larger diameter by the ring 90 positioned in front of the seal. As the jaw member moves inwards to the engaged position the ring 90 moves down the radius 84 and onto the smaller diameter of the jaw member and no longer frictionally engages the latter. In a modification, the axial length of the larger diameter of the jaw member is increased and the fluid seal is located in front of the friction ring 90.
Patent GB-793528-A (GB)
Title: Manufacture of polymeric materials
Inventor: GUEST DOROTHY JOYCE
IPC: C08F20/12
Filed: 1954-10-01
Abstract: In the batch-wise polymerization of methacrylates by emulsifying in water containing a dispersing agent and a catalyst, a substantial proportion of the dispersing agent is added continuously during the polymerization and the proportion thereof to simultaneously added monomer and catalyst is kept constant. The ester may be methyl, ethyl, propyl, isopropyl, butyl, isobutyl, nonyl, lauryl, or b -ethoxyethyl methacrylate.  The amount of dispersing agent originally present may be less than 70 per cent, e.g. 20 to 50 per cent or even down to 0 per cent, and, further, not more than 30 per cent may be added after completion of the polymerization.  Specified are sulphonated oils such as turkey red oil, sodium stearate, sodium cetyl sulphate, salts of polyacrylic and polymethacrylic acids, cetyl pyridinium bromide, cetyl trimethylammonium bromide, ethylene oxide condensation products and polyvinyl alcohol.  The catalyst used may be hydrogen peroxide, ammonium, sodium or potassium persulphate, or an alkali perborate, optionally in conjunction with a reducing agent. In examples the aqueous medium comprises sodium carbonate. The products are stable, concentrated dispersions as illustrated in the examples by their stability to coagulation by salt solutions. Comparative experiments illustrate that when all the dispersing agent is present initially, granular polymers are obtained.
Patent GB-930223-A (GB)
Title: New anthraquinone dyestuffs
IPC: C09B5/36
Filed: 1961-08-03
Abstract: The invention comprises dyes of the formula <FORM:0930223/IV(a)/1> wherein R is an acyl radical of a cycloaliphatic or an unsaturated or saturated aliphatic carboxylic acid containing not more than 7 carbon atoms.  The dyes are made by acylating a compound of the above formula wherein R is hydrogen.  Examples of the dyes are given wherein R is acetyl, chloroacetyl, propionyl, b -chloropropionyl, butyroyl, hexahydrobenzoyl and acryloyl.  The dyes dye and print polyester fibres in reddish-blue shades.
Patent GB-1432284-A (GB)
Title: Process for preparing polyesters of butane-1,4-diol polyimide filament and process for its manufacture
IPC: C08G63/00
Filed: 1974-06-26
Abstract: 1432284 Polyesters BAYER AG 26 June 1974 [27 June 1973] 28333/74 Heading C3R A process for preparing polyesters comprises condensing in the melt butane-1,4-diol and at least one aromatic dicarboxylic acid in the presence of at least one dimethyl ester of the dicarboxylic acid used. The reaction is preferably carried out in 2 stages and preferably in the presence of at least one catalyst, the first stage being carried out at a superatmospheric pressure and at a temperature of not more than 200‹ C. and the second stage being carried out under vacuum at a temperature of from 250‹ C. to 310‹ C. In the examples polyesters are prepared from terephthalic acid, dimethyl terephthalate and butane 1,4-diol using sodium acetate as catalyst in the first stage and tetraisopropyl titanate as catalyst in the second stage. A continuous process for preparing the polyester is also described.
Patent GB-771558-A (GB)
Title: Forms for poured concrete
IPC: E04G9/06
Filed: 1951-12-04
Abstract: 771,558. Shuttering panels. GRANT, G. C. Dec. 4, 1951 [Oct. 20, 1951], No. 28379/51. Class 20(2) A shuttering panel comprises a metal face plate 26 Figs. 1, 2 and sheet metal side and end members 12, 13 provided with flanges 16, 17 and with longitudinally extending grooves 14, 15 formed with spaced apertures 9 adapted to receive slotted bolts 30 Fig. 8 with wedges 30a for securing adjacent panels side by side or end to end. The inwardly projecting ribs forming the grooves 14, 15 resiliently maintain pressure on the securing bolts. The face plate 26, Fig. 2, is strengthened by an inner plate 10 formed with ribs 11 and integral with the sides 12, flanges 26a of the plate 26 being received in recesses 27 in the sides and ends 12, 13. The panel is reinforced by flanged cross plates 20 similar in form to the end members 13 but having notched edges to straddle the ribs 11, 14 of the plate 10 and sides 12. The component parts of the panel are welded together. The sides and ends 12, 13 also have apertures 31, Fig. 1 to permit the nailing of timber for the provision of window and door openings, wall corners or for spanning a short distance by a timber panel 34, Fig. 4 (not shown). In wall shuttering the side flanges 16 provide bearing surfaces for walings 32, Fig. 10 which are secured by ties 33 passing therethrough and through apertures in the panel faces. In floor shuttering the flanges 16 serve to distribute the floor load where the panels are supported at their ends on ledgers.
Patent GB-284672-A (GB)
Abstract: 284,672. Chomarat, V. Feb. 3, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Ignition sets.-A magneto may be replaced by a casing a, which is of similar shape to the magneto and contains a transformer s, t, interrupter h, distributor members c, d, and a condenser n. The transformer primary winding is connected to an external source of supply, and the shaft r is so positioned as to receive the drive ordinarily transmitted to the magneto.
Patent GB-794405-A (GB)
Title: Anti-foam emulsion for aqueous systems
IPC: B01D19/04
Filed: 1956-09-19
Abstract: An anti-foaming composition consists of an emulsion containing 20 to 40 parts of methyl polysiloxane, having 1.95 to 2.25 methyl groups per silicon atom, 4 to 8 parts of monostearic ester of polyethylene glycol, 6 to 10 parts of monostearic acid ester of sorbitol, up to 5 parts of silica, and 40 to 60 parts of water. Preferably the methyl polysiloxane is mixed with silica aerogel and to the wet mixture the two stearic esters are added and intimately dispersed.  This product is then mixed with water and the mixture treated in a colloid mill to form a clear emulsion. The emulsion is diluted before use. Specifications 586,187, [Group IV], 653,323, [Group XI], 689,306 and 693,416, [Group XI], are referred to.ALSO:An anti-foaming composition consists of an emulsion containing 20 to 40 parts of methyl polysiloxane having 1.95 to 2.25 methyl groups per silicon atom and a viscosity of 20 to 125 centipoises at 25 DEG  C., 4 to 8 parts of monostearic ester of polyethylene glycol, 6 to 10 parts of monostearic ester of sorbitol, up to 5 parts of silica, and 40 to 60 parts of water.  Preferably the methyl polysiloxane is mixed with silica aerogel and to the wet mixture the two stearic ester are added and intimately dispersed. This product is then mixed with water and the mixture treated in a colloid mill to form a clear emulsion.  The emulsion is diluted before use.  Specifications 586,187, [Group IV], 653,323, [Group XI], 689,306, [Group III], and 693,416, [Group XI], are referred to.
Patent GB-718616-A (GB)
Title: Improvements relating to draughtmen's instruments
IPC: B43L13/00
Filed: 1951-12-07
Abstract: 718,616. Draughting-machines. HEYNE, W. O. Dec. 1, 1952 [Dec. 7, 1951], No. 28739/51. Class 97(3) A. draughting machine comprises a slide having depending jaws making live contact only with opposite sides of a bar disposed over a drawing board, the slide having means for attachment thereto of a drawing instrument by a connection permitting relative movement between the instrument and the slide. As shown, a tubular bar 16, Fig. 6, is movable over a board 3 parallel to itself in the manner described in Specification 701,113. A slide movable along bar 16 has a body 20 with lugs 22, 23 engaging the bar, the nose of lug 23 being shaped so that the lugs embrace more than half the bar. A plate 31, Fig. 3, is screwed to body 20 over an aperture 30 therein, and carries leaf springs 32 carrying rollers 34 which are thereby urged against the bar 16. The ends of bar 16 are tapered so that the body may be easily slid on and off the bar. A sector plate 35 has a pin 51 entering an aperture 52 in body 20 and pressed aganst the aperture walls by a leaf spring 54. The plate has an index 36 co-operating with a scale 37 on the slide, and notches at 35<SP>1</SP> at 15 degree intervals. A clamping screw 38 holds to sector plate in any position. A locking lever 40 has a triangular aperture 45 engaging a pin 42 on the body 20. A spring 49 in an opening 47 in the lever engages a stud 46 on the body, so that a pin 41 on the lever is urged against the edge of the sector plate and may engage the notches 35<SP>1</SP>. It may be disengaged by pressing a thumb-piece 44 on lever 40. A drawing instrument, e.g. a setsquare with an angle bracket 57, may be fixed to the sector plate. A split ball 59 (Fig. 6) on the pivot pin 51 engages a cup 62 in bracket 57, and another ball (not shown) on the sector plate engages a second similar cup on bracket 57. This connection permits some angular movement between the set-square and the slide.
Patent GB-266049-A (GB)
Title: Improvements in or relating to apparatus for measuring granular materials
IPC: G01F13/00
Filed: 1925-11-17
Abstract: 266,049. Lea, J. E. Nov. 17, 1925. Registering feed of granular materails.-In apparatus of the type described in Specifications 205,903 and 257,319, for indicating the total feed of granular materials means are provided for indicating and for recording the rate of feed. In the form shown the adjustable spindle f of the usual meter c is provided with a rack j gearing with a pinion i on the spindle of a pointer h cooperating with a dial g graduated in accordance with the rate of flow, the speed of the conveyer a being assumed constant. In a modification a pointer l may be applied to one member of the link motion and a calibrated plate m fixed to the side of the machine. To record the rate a per arm o carried by the shaft f contacts with a record strip n driven by a clockwork or the conveyer.
Patent GB-784463-A (GB)
Title: Apparatus for butt welding glass capillary tubes
IPC: C03B23/207
Filed: 1955-10-11
Abstract: 784,463. Welding glass. VAPOR HEATING CORPORATION. Oct. 11, 1955 [Oct. 27, 1954], No. 28966/55. Class 56. In the butt-welding of the adjacent ends of two axially-aligned capillary tubes A, B in the manufacture of a liquid-column thermostat as in Specification 667,820 [Group XXXVI] the two tubes are positioned in grooves 44, 45 in a block 30. The lower tube is clamped to a block 66 manually movable, within limits, by a rack and pinion 76, 73 relatively to the block so that the ends of the tubes may be'in light contact for initial heating or in firmer contact for the actual welding. Flame jets J are carried by a platform 90 which is reciprocated vertically, under control of the operator, adjacent the abutting ends of the tubes. During initial heating fuel gas only is supplied to the burners ; during welding a mixture of fuel gas, oxygen and air is supplied. After welding, the block 66 is lowered slightly, before release of the tube, to produce the neck N shown in Fig. 17, in this figure C represents one of the embedded contact elements of the thermostat.
Patent GB-755960-A (GB)
Title: New acid anthrapyrimidine dyestuffs
Inventor: LODGE FRANK
IPC: C09B5/16
Filed: 1953-10-21
Abstract: The invention comprises new acid dyestuffs of formula:-<FORM:0755960/IV(c)/1> where in Ar is an   or b -naphthylp-phenylphenyl- or p-phenoxyphenyl radical, R is a phenyl radical carrying in the 4-position a cyclohexyl radical or an alkyl radical containing 4-12 carbon atoms or carrying a n-butylene radical attached at the ends to the 3- and 4-positions and n is a whole number greater than 1.  The dyes may be prepared by sulphonating the corresponding 6-arylamino-2-aryl-11 : 91-anthrapyrimidine.  The dyestuffs dye wool in scarlet to red shades.  Examples describe the sulphonation of 6-p-cyclohexylanilino- or -p-n-octylanilino- or- (ar-tetrahydro-b -naphthylamino) -2-p-phenylphenyl-11 : 91-anthrapyrimidine and 6-p-n-butylanilino-2-p-phenylphenyl- or p-phenoxyphenyl- or - - napthyl- or -b naphthyl-11 : 91-anthrapyrimidine, 6-arylamino-2-aryl-11 : 91-anthrapyrimidines. These compounds may be made by condensing the N-methyl derivative of the appropriate aryl carboxylic acid amide with 1-amino-4-chloro- or -bromoanthraquinone by means of thionyl chloride in the presence of an inert diluent, and then condensing the appropriate substituted arylamine with the 6-chloro- or -bromo-2-aryl-1 : 9-anthrapyrimidine so obtained.