baber/WOPTO huggingface dataset:
Patent GB-438653-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H05B41/06
Filed: 1935-07-19
Abstract: 438,653. Discharge apparatus.. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. July 19, 1935, No. 20598. Convention date, July 21, 1934. [Class 39 (i)] A circuit arrangement for operating a device having a heated cathode from a constant - current circuit comprises means for dividing the supply between the discharge path and the cathode heater, and a circuit connected in shunt across the discharge path is arranged to carry the normal discharge current until the cathode has been heated to its operating temper. ature. In one form, a transformer 2 supplied from a constantcurrent circuit has a secondary 5 supplying the discharge current and secondaries 4, 6 supplying the cathode heaters 10, 11 of the lamp 7. A time-delay switch 17 comprises a heater 21 supplied from the secondary 6 and contacts 18, 19 which are opened by a bimetallic strip 20 and when closed provide, with the resistance 22, a shunt circuit across the discharge path. When the cathodes have reached operating temperature, the strip 20 opens the contacts 18, 19 and the full voltage is impressed on the lamp. If the lamp does not start within a short period a film contact short-circuit device 43 breaks down. In a modification for continuous-current, the cathode heater is connected in shunt with the discharge path and in series with the heater for the time-delay switch.
Patent GB-960642-A (GB)
Title: Measles vaccine
IPC: A61K39/165
Filed: 1961-06-08
Abstract: A vaccine product capable of stimulating an antibody response in animals, including man, effective against a subsequent measles infection is prepared by propagating measles virus in monkey kidney cells, harvesting the crude virus, clarifying by centrifugation at at least 5,000 gravitational units, inactivating the virus by treatment with formaldehyde, and concentrating the resulting suspension by aggregating the antibody stimulating particles and reconstituting said particles in sufficient injectable medium so that the resulting suspension is at least 4 times as concentrated with respect to antibody stimulating particles as the original unconcentrated suspension. Inactivation is carried out by storing the product for from 6 days to three months at a temperature of from 5 DEG  C. to 37 DEG  C. in admixture with from 0.02% to 0.1% of formaldehyde.  Other methods of inactivation may be used e.g. ultraviolet radiation, phenolic compounds or heat.  Concentration of the clarified virus is by (a) adsorption on calcium phosphate, cobalt chloride, alkali metal aluminium phosphate or alkali metal aluminium sulphate (b) freeze drying or (c) centrifugation.
Patent GB-1057379-A (GB)
Title: Production of urea derivatives
IPC: C07C275/56
Filed: 1964-05-20
Abstract: The invention comprises compounds of the formula R1-N = CH-NR2-CO-NR3R4 or corresponding salts of the formula <FORM:1057379/C2/1> wherein R1 represents a substituted or unsubstituted alkyl, cycloalkyl, aryl or aralkyl radical; R2 represents hydrogen, an alkoxy, dialkylamino or dibenzylamino radical or a substituted or unsubstituted alkyl, cycloalkyl, aryl or aralkyl radical; R3 and R4 represent hydrogen or a group as defined for R1, provided that R2, R3 and R4 do not all denote aryl radicals at the same time and provided that any two of the radicals R2 R3 and R4 may alternatively be connected together to complete a heterocyclic ring. Specified further substituents are halogens, nitro, alkoxy, nitrile and dialkylamino.  The above compounds are prepared by reacting an N-monosubstituted acid amide of the formula R1-NHCHO with thionyl chloride, phosgene or phosphorus oxychloride and a urea of the formula R2-NH-CO-NR3R4 and, if desired, treating the product with an alkaline reagent.
Patent GB-235754-A (GB)
Title: Improvements in acoustic devices
IPC: H04R13/02
Filed: 1924-09-03
Abstract: 235,754. Western Electric Co., Ltd., (Western Electric Co., Inc.). Sept. 3, 1924. Diaphragms; magnetic instruments.-Clamping devices for diaphragms of acoustic apparatus have the same coefficient of expansion as the diaphragm. In a telephone receiver, the iron diaphragm 5 is clamped on an iron seat 4 by an iron clamping ring 6. In order to secure uniform pressure on the diaphragm, an iron ring 8 and a gasket 9 of yielding material such as copper are interposed between the ring 6 and the seat 4. The diaphragm may be damped by annular discs 12 of aluminium foil or paper disposed between a plate 11 and the diaphragm.
Patent GB-273922-A (GB)
Title: Improvements in or relating to lifting jacks
IPC: E21D15/15
Filed: 1926-08-24
Abstract: 273,922. Lake, W. B., and Lake & Elliot, Ltd. Aug. 24, 1926. Drawings to Specification. Regulating delivery by opening suction and delivery valves.-A hydraulic jack of the extended lift type has two or more telescopic plungers with packing members between the plungers and between the casing and outer plunger, the plungers being provided with grooves and split rings which are adapted to lock the plungers in their extended position. The details of construction of the pump are the same as those described in Specification 273,921, but the claims differ.
Patent GB-135973-A (GB)
Title: Improvements in Sound Reproducing Machines.
IPC: H04R7/00
Filed: 1918-12-16
Abstract: 135,973. Marks, E. C. R., (Chency Talking Machine Co.). Dec. 16, 1918. Diaphragms; sound-box cases. - Sound-boxes for gramophones &c. are so constructed that the space between the diaphragm 16 and the backplate 17 widens towards the rim of the diaphragm. Preferably, each is of convex shape with the convex surfaces facing each other. The diaphragm and back-plate may both be formed with concentric ribs, having the shape of ratchet teeth in cross-section. The diaphragm is unstrained and is held between non-metallic rings 14, 15 by an ornamental cover-plate 13.
Patent GB-460575-A (GB)
Title: Colouration of textile and other materials
IPC: D06P1/92
Filed: 1935-07-25
Abstract: Cellulose ester or ether material in filament, foil, fabric or other form is coloured by subjecting it to the action of a freely fluid solution of a colouring matter (other than a free leuco compound of a vat dyestuff or a salt thereof with a base) in a homogeneous liquid containing a substantial proportion (5 per cent or more) of a carboxylic ester boiling below about 130 DEG  C., any water present forming only a minor proportion of the liquid. Specified esters are ethyl formate and methyl, ethyl and isopropyl acetates.  Their softening action may be diminished by adding benzene, toluene, xylene or other aromatic hydrocarbon, an aliphatic hydrocarbon, e.g. petrol, or a chlorinated hydrocarbon, e.g. carbon tetrachloride, dichlorethylene or trichlorethylene. The material may be passed through the solution of the colouring matter and the fastness of the colour to rubbing may be improved by washing thereafter with an organic solvent for the colouring matter which may be the solvent used for preparing the original solution and/or may have a softening action on the material. Alternatively, the washing liquid may be a solution of the colouring matter similar to the original solution but of a lower concentration.  The dyeings may be steamed, e.g. as an alternative to the washing treatment.  Specified colouring matters are water-insoluble dyes of the azo, nitrodiarylamine and indigoid series and water-insoluble aminoanthraquinones, e.g. 1 : 4 - diamino-, 1 - amino - 4 - oxy-, 1 : 4 - di - (methylamino)-, 1-ethanolamino- and 1 : 4-di-(ethanolamino)-5 : 8-dioxy - anthraquines.  In examples: (1) a cellulose acetate yarn is dyed red by passing it through a 0,25 per cent solution at room temperature of 1-amino-4-oxy-anthraquinone in a mixture of 40 parts ethyl acetate, 60 parts ethyl alcohol and 20 parts water, followed by drying by passage through air at 40 DEG  C.; (2) a cellulose acetate yarn is dyed scarlet by passing it through a 0,25 per cent solution at room temperature of 1 - (b  - oxyethyl)aminoanthraquinone in a mixture of 80 parts ethyl acetate and 20 parts xylene, followed by drying with warm air. Specifications 282,036, 313,451, and 314,208, [all in Class 15 (ii)], are referred to.
Patent GB-753491-A (GB)
Title: Improvements in or relating to iron, nickel and molybdenum steel alloy and articles made therefrom
Inventor: SUCCOP JOHN AUGUST
Filed: 1953-07-30
Abstract: A steel alloy suitable for hot press forging and other static pressure hot forming operations has the composition .C.0,15 - less than 0,2.per cent .Mn.0,6 - 0,8.per cent .Mo.3,25 - 3,5.per cent .Ni.3,0 - 3,25.per cent .Si.0,2 - 0,35.per cent .Fe.and impurities the remainder.. The alloy may be normalised from 1800 DEG -1900 DEG F. and tempered at a temperature below 1100 DEG F.
Patent GB-170111-A (GB)
Title: Improvements in or relating to folding chairs
IPC: A47C4/40
Filed: 1920-07-13
Abstract: 170,111. Anderson, A. E. July 13, 1920. Stays.-In an adjustable chair of the kind in which a pivoted locking-arm is adapted to be swung over an adjustable strut-member, and is then engaged by a catch so as to hold the strutmember in a selected notch, the catch D overhangs the supporting member B and is so arranged that the resilient arm C must be sprung underneath it. The pivot pin C' for the arm C may serve to secure together the members B, B<2>. According to the Provisional Specification, other forms of securing means may be used for the free end of the arm C.
Patent GB-365016-A (GB)
Title: An improved process for treating artificial silk
IPC: D01D10/04
Filed: 1931-07-24
Abstract: 365,016. Twisting artificial silk. BRITISH BEMBERG, Ltd., Hazel House, Milk Street, London.-(Assignees of Bemberg Akt.-Ges., J. P. ; Postfach 35, Oberbarmen, Wuppertal, Germany.) July 24, 1931, No. 21214. Convention date, July 24, 1930. Addition to 312,034, [Class 2 (ii), Cellulose &c.], and 363,958. [Class 120 (ii).] The process described in Specification 363,958 is modified by twisting artificial silk, which has been treated with liquids while in the form of unlaced skeins, by rapidly rotating the wet skein about a vertical axis and withdrawing the thread in the direction of the vertical axis and simultaneously winding it on a bobbin. Skeins of artificial silk, spun on reels of somewhat smaller circumference than usual and in a somewhat thicker layer, are mounted on reels 1 of variable circumference and subjected to liquid treatments. The reels, with the still moist skeins 2, are mounted on spindles 3 which are arranged in two staggered rows and are driven at high speed by a belt 5. The thread 7 is withdrawn laterally from the skein 2 and led through a fixed guide 6, and is wound on a bobbin 11 driven by a roller 10 by a guide 8 which is reciprocated by a rod 9. Instead of employing two sets of reels, the artificial silk may be spun on a rigid reel on which the skein is subjected to liquid treatments and from which the thread is withdrawn and twisted after mounting on the spindles 3.
Patent GB-269390-A (GB)
Title: Improvements relating to razor sharpening apparatus
IPC: B24D15/08
Filed: 1926-12-09
Abstract: 269,390. Grimsley & Co. (Leicester), Ltd., and Sellicks, G. Dec. 9, 1926. Stropping-apparatus.-A razor sharpening device, operated by means of a cord or chain, consists of a housing a having a removable cover l and carrying a supporting-bracket o, in which housing are supported two spindles d, e carrying respectively a hone f and a blade-holder g. The spindles carry gear wheels i, j meshing with a. wheel k, and on the spindle e is a pulley m or a sprocket-wheel for the cord or chain n. When the blade contacts with the hone, the holder g slips on the spindle.
Patent GB-1562000-A (GB)
Title: Pressurized barrier container
IPC: B05B7/04
Filed: 1977-05-20
Abstract: The dispensing container is provided for substances whose minimum viscosity at room temperature is 10,000 cps, but can rise to 500,000 cps or more. It has a pressure container with a dispensing valve (15). To open the dispensing valve, a hollow valve shaft (22) is pivoted in an elastic valve body (23). As a result, an aperture (32) is produced on the valve seat (26), through which aperture the substance to be dispensed can emerge via passages (28) and the shaft (22). This design of the dispensing valve allows such a large cross-sectional area for the throughflow that, despite low pressure of the propellant, a sufficiently large output through the valve (15) is guaranteed. Since the starting pressure must not exceed 2.81 atm, the pressure container can be of thin-walled design and be made of plastic, for example. This allows a considerable cost reduction. <IMAGE>
Patent GB-477059-A (GB)
Title: Improvements in loaded electric transmission lines
IPC: H01B11/16
Filed: 1936-07-31
Abstract: 477,059. Loaded transmission lines. BRILLOUIN, L. N. July 31, 1936, Nos. 21303 and 21304. Convention dates, Aug. 2, 1935 and July 6, 1936. [Class 40 (iv)] A line capable of transmitting with permissible attenuation a number of frequency bands which are wide enough for direct or carrier telephony comprises a series of identical sections each including one or more complex impedances which are such that the ratio of the currents entering successive sections is of the form e<ib> for the frequency bands in question when resistances are neglected. In multi-line cables, the loadings are preferably such that adjacent lines transmit different frequency bands so that the effect of cross-talk is avoided. The Specification contains a mathematical discussion of lines loaded in this manner, starting with an earth-return line made up of sections as shown in Fig. 3, each comprising a length of line represented by impedance elements R1, L1, Cl and a simple dipole with elements R2, L2, C2. Such a line is equivalent to the simple filter shown in Fig. 5 and presents two pass bands. It is found that the currents in the smooth line and in the dipole are substantially in phase in the lowfrequency band and in opposition in the highfrequency band, so that the bands may be readily separated by means of two pairs of coils 8, 9 and 10, 11 coupled to the line, as shown diagrammatically in Fig. 6, one pair of coils being wound in opposition. If each section includes more than one such dipole, a greater number of pass bands are obtained. The more general case of a dipole of which the impedance is wholly reactive is examined, and the conditions for pass bands of sufficient width are obtained. Examples of such dipoles are shown in Figs. 10, 11, 14, 17, and a numerical example is considered. The modifications in the calculations for two-wire lines loaded with quadripoles are indicated, and suitable quadripoles are shown in Figs. 20, 21.
Patent GB-317369-A (GB)
Title: Improvements in the manufacture of reinforced glass
IPC: C09J161/34
Filed: 1929-07-11
Abstract: 317,369. Soc. Anon. des Manufactures des Glaces et Produits Chimiques de St.-Gobain, Chauny et Cirey. Aug. 14, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Compound transparent sheets. - A synthetic resin such as is obtained from formaldehyde and phenol, or urea and formaldehyde, or glycerine and phthalic anhydride, preferably partially polymerized and dissolved in a suitable solvent. is used for uniting two sheets of glass to a sheet of celluloid or the like to form a compound transparent sheet. The coated glass sheets and the celluloid sheet are united by pressure in a suitable solvent, such as alcohol, acetone, &c., luting of the edges of the compound sheet being unnecessary.
Patent GB-1354763-A (GB)
Title: Elastomeric mixtures
IPC: C08K3/06
Filed: 1971-04-19
Abstract: 1354763 Laminates MICHELIN & CIE (COMPAGNIE GENERALE DES ETABS MICHELIN) 19 April 1971 [10 Feb 1970] 21343/71 Heading B5N [Also in Division C3] Laminates may be prepared by bonding to metals, particularly brass such as brass-plated steel cable reinforcement for tyres, vulcanizable compositions comprising (a) 100 parts by weight of an ethylene/propylene/non-conjugated diene terpolymer elastomer; (b) a vulcanizing system comprising 1-10 parts by weight of sulphur, 5 to 15 parts by weight of zinc oxide or cadmium oxide, up to 5 parts by weight of tetraalkyl thiuram disulphide and/or up to 5 parts by weight of a dialkyl dithiocarbamate of a metal other than one of Group Ia or IIa; and (c) 0À5 to 10 parts by weight of (1) a compound of a metal of Group Ia or IIa capable of forming with the vulcanizing system during vulcanization a dialkyl dithiocarbamate of a metal of Group Ia or IIa, provided that the mixture does not contain 2-mercaptobenzothiazole when the compound is calcium oxide, or (2) a dialkyl dithiocarbamate of a metal of Group Ia or IIa. The compositions may be vulcanized and bonded to metal reinforcements in the manufacture of tyres, conveyer belts and conduits. Examples describe the bonding to brass coated steel cable tyre reinforcements of compositions comprising ethylene/propylene/1,4-hexadiene terpolymer, extender oil, carbon black and zinc oxide together with (1, 4 to 6 and 8) barium oxide, sulphur, tetramethyl or tetraethyl thiuram monosulphide and zinc diethyl dithiocarbamate or mercaptobenzothiazole, (2) as in (1) wherein the barium oxide is replaced by calcium oxide, magnesium oxide, sodium phosphate or sodium acetate, or (3) as in (1) wherein the barium oxide is replaced by barium, calcium or magnesium diethyl dithiocarbamates; and (7) as in (1) wherein the terpolymer is replaced by ethylidene norbornene or dicyclopentadiene terpolymers.
Patent GB-1504704-A (GB)
Title: Heatrecoverable coupling
IPC: H01R4/01
Filed: 1974-05-14
Abstract: 1504704 Electric couplings RAYCHEM Ltd 14 May 1975 [14 May 1974] 21369/74 Heading H2E A connector 11 comprises a non-resilient but deformable metallic member 12 and a "memory metal" band 13. The tines 15 and the band are deformed as the connector is pushed over the bulge 10 of the pin 1 while the band is in a martensitic state at -45C. (or - 75 C. dependent on the titanium-nickel alloy used to make the band). The band then warms and in an austenitio state returns to its original dimensions (Fig. 9, not shown). The tines and the band may have been previously deformed by a mandrel where the pin is fragile. At the other end of the connector there may be a similar connection (not shown), a crimp connection using a copper ferrule 17 or a solder connection (not shown). The pin may be one of a plurality in a military connector, and formed of the same metal as the deformable member, e.g. a thermocouple metal.
Patent GB-423668-A (GB)
Title: A new process for the manufacture of citric acid
IPC: C07C51/02
Filed: 1933-07-29
Abstract: Crude citric acid, if desired after partial removal of colloidal impurities by means of oppositely-charged colloids, or of electrolytes with or without the addition of an absorbent such as kieselguhr, is treated with a base yielding an insoluble citrate in such quantity as to neutralize about two-thirds of the acidity, thus precipitating an acid citrate, which is subsequently decomposed with a suitable acid such as sulphuric acid, and yields a solution from which practically all the citric acid may be crystallized. Alternatively the precipitation of the acid citrate may be effected by first completely neutralizing or alkalizing the solution and then adding an acid to produce the same conditions of acidity as in the first method.  In examples (1) the crude citric acid (lemon juice) is allowed to ferment, and copper sulphate and barium sulphide are added to remove colloidal impurities; about two-thirds of the quantity of calcium hydrate necessary for neutralization is added to the filtered solution; (2) the fermented juice is treated with lime to precipitate colloids, filtered, and neutralized or alkalized with lime; citric acid is then added to produce the acidity previously stated, and the acid citrate is produced.  In both cases the acid citrate is then decomposed with sulphuric acid and yields a crystallizable acid.
Patent GB-491114-A (GB)
Title: Improvements in or relating to electric contact making relays
IPC: B61L1/08
Filed: 1937-08-04
Abstract: 491,114. Magnetic relays. GREENLY, H. Aug. 4, 1937, No. 21492. Addition to 473,589. [Class 38 (v)] In an inductor relay of the type described in the parent Specification, having an armature with two parts 1, 2 pivoted at 4 and connected at 3 by a knuckle or like joint, the bearings 4 which may be steel ball bearings are magnetically screened from the magnetic field of the actuating magnet 9. This may be effected by means of two parallel bars or strips 8 of iron arranged as shown with the ends of the parts 1, 2 free of them so as to be influenced by the poles 9. In the form shown, the relay is operated by the deflection of magnetic flux caused by the passing of the wheel 12 of a locomotive or truck. The magnet 9 has a pair of double poles and a plate 11 of soft iron fits closely against the outer pair of poles to assist the dissipation of magnetic flux. When the attraction of the poles 9 for the armature weakens, its two parts are attracted downwards by a magnet 10 or by springs and contacts 5, 7 closed. The armature is mounted on a carriage 18 that is adjustably slidable and the magnet 10 is also adjustable. In a modification, Fig. 2 (not shown), the relay is operated by a magnetic member passing between the main part of a magnet and its poles which are separated from the main part by air gaps. The two parts 1, 2 may be of skeleton formation, each being formed of two thin iron plates welded or riveted together at the ends and embracing a pivot pin at their centre, Fig. 5 (not shown).
Patent GB-967848-A (GB)
Title: Improvements in or relating to the fermentative preparation of protease
IPC: C12N9/52
Filed: 1963-05-29
Abstract: Protease is prepared by cultivating Pseudomonas aeruginosa under aerobic conditions in a synthetic nutrient medium containing 3-15% w/v of glucose, 0.05 to 5% w/v calcium or strontium carbonate and less than 0.5% w/v organic nitrogen sources and thereafter extracting the enzyme from the medium by methods known per se e.g. salting out, dialysis, precipitation, elution, chromatography followed by further purification. Preferably the medium also contains sources of ammonium, phosphate and magnesium ions.
Patent GB-1436751-A (GB)
Title: Internal combustion engine with internal misture formation
IPC: F02B3/06
Filed: 1973-05-07
Abstract: 1436751 IC engine air intake passages H LIST 7 May 1973 [10 May 1972 20 June 1972 15 Sept 1972(2)] 21578/73 Heading F1B The intake passages 30, 30' to the intake valves 22, 22' of each cylinder 44 of an engine with internal mixture formation, e.g. a diesel engine, are respectively a passage extending substantially in a direction which includes an acute angle with a plane normal to the cylinder axis 26 and a passage having a helical terminal portion 41 adjacent the valve 22'. The portions of the inlet passages upstream but adjacent the terminal portions each extend in a direction which is within a respective plane substantially tangential to the surface of an imaginary cylinder concentric to the axis 26 and including the valve axes 24, 24'. The air flows through the inlet passages provide air flows rotating in the cylinder about its axis which impinge to provide a resultant rotating flow including turbulence. The inlet passages may extend from a side wall 31 of the cylinder head 21, the top wall (48), Figs. 5 to 7 (not shown), or one from a side wall and the other from the top wall.
Patent GB-414516-A (GB)
Title: Improvements in and connected with golf clubs
IPC: A63B53/04
Filed: 1933-08-02
Abstract: 414,516. Golf clubs. SCOTT, W., 11, Cromwell Street, Glasgow. Aug. 2, 1933, No. 21662. [Class 132 (ii).] A golf club head of the " iron " type has the weight concentrated and distributed along the back of the blade B and behind the point of impact. The weight C extends, in the form of a uniform ridge of metal, from the heel to a point E short of the toe and enables the thickness of the sole D to be reduced. The sole D is slightly rounded from heel to toe and offers the minimum of resistance at the moment of impact.