baber/WOPTO huggingface dataset:
Patent GB-1064534-A (GB)
Title: Production of a bleaching liquor containing performic acid
Inventor: SCHMIDT OSWALD
IPC: D06L3/02
Filed: 1965-07-09
Abstract: Performic acid in aqueous solution, obtained by reacting hydrogen peroxide with at least one substance yielding formaldehyde, a low molecular weight formic ester, or a low molecular medium, is used as a bleach bath.  Substances yielding formaldehyde have at least one group of formula Y-CH2-X where Y is nitrogen or oxygen, X is nitrogen or oxygen or a -SO3M group where M is a proton, ammonium ion, an alkali metal ion or half an alkaline earth metal ion.  Examples are given and include formaldehyde polymers, formals, hydroxymethane sulphonic acid, amino methane sulponic acid and others.  Low molecular weight formic esters and formamide have the general formula <FORM:1064534/C2/1> in which Q is a radical -OR or <FORM:1064534/C2/2> R being alkyl (1-5 C), R1 and R2 hydrogen atoms or alkyl groups (1-5 C), e.g. methylbutyl formates, and diethyl formamide.  Additional components which prevent a drop in pH value during the bleaching may be hexamethylene tetramine, formamide, dimethyl formamide, aminomethanesulphonic acid, iminobismethanesulphonic acid and their alkyl derivatives and salts.ALSO:Bleach liquor for synthetic or natural protein fibres containing performic acid is prepared by reacting hydrogen peroxide with at least one substance yielding formaldehyde, a low molecular weight formic ester, or a low molecular weight formamide in an acid or neutral aqueous medium (see Division C2), and if desired the solution may be diluted and adjusted to a pH of 1 to 8.5 formaldehyde polymers; hydroxymethane-sulphonic acid and its sodium, potassium, and calcium salts; the reaction products of this acid with ammonia, and hexamethylene tetramine are the preferred reactants with hydrogen peroxide.  Stabilisers for the active oxygen such as alkali metal polyphosphates; magnesium silicate; magnesium phosphate; and complex-forming amino-polycarboxylic acids may be present together with wetting agents, detergents and/or softening agents and optical brighteners.  Simultaneous bleaching and dyeing of proteinaceous fibrous material may be carried out at elevated temperatures using the bleach solutions above containing 0.2 to 10 gm./litre of active oxygen and wool dyes which are resistant to oxygen such as acid azo, acid anthraquinone, 1:1 metal complex and 1:2 metal complex dyes. Conventional assistants such as levelling and wetting agents, carriers, dispensing agents, buffer salts, neutral salts and fibre protectives may also be present.  A brightening or antifelt finishing by chlorine, may also be carried out in the same liquor.  Many examples describe the use of the liquor in winch, cheese, pack, tops or cross-wound bobbin, and suspension dyeing machines to process wool-polyacrylonitrile, wool-rayon, wool, wool-polyster, nylon, pig-bristles and feathers.
Patent GB-1531348-A (GB)
Title: Hydraulic piston pump
IPC: F04B9/14
Filed: 1976-07-13
Abstract: 1531348 Reciprocating pumps WAGGON UNION GmbH 13 July 1976 29152/76 Addition to 1367048 Heading F1A A pump for actuating the emptying valves of a rail tank wagon comprises a cylinder 7, Fig. 2, in which a piston is reciprocated by an eccentric 2 rotated by a handwheel on a shaft 31, Fig. 3, detachably coupled by coupling 4 to the eccentric drive-shaft 3, the pump drawing from a reservoir 10 via inlet port 9 and delivering via check-valve 12 connection 14, disengagement of a handwheel shaft 31 from shaft 3 causing automatic closing of the wagon emptying valves by opening valve 32 to connect connection 14 to reservoir 10 via passage 33, shafts 31 being connected to valve 32 via groove 39, pin 38, rod 37, links 36, 35 and push-rod 34.
Patent GB-292028-A (GB)
Abstract: 292,028. Stoffleth, G. Dec. 5, 1927. Tyre covers, tools for removing and replacing. -In a tool for manipulating collapsable wheel rims, of the type comprising a pair of pivoted clamps for gripping the rim, the jaws d, e of one clamp, which is pivoted directly to a hand-lever a, are resilient and shaped so as to spring apart when the nut h is slackened back on the bolt g. The other clamp is connected to the lever through a link k and comprises a jaw n having a threaded end p on which the jaw o is secured by a nut q. For holding the rim in the collapsed position, as shown, the jaw e is provided with a stud u to receive a link of a chain t carried by the link k.
Patent GB-246627-A (GB)
Title: Improvements in metallurgical furnaces
IPC: F27B3/00
Filed: 1924-12-05
Abstract: 246,627. Talbot, B. Dec. 5, 1924. Open-hearth furnaces; hearths.- The hearth of a metallurgical furnace is provided at one or more points along its length with transverse upward bulges such as v, and in a side wall, opposite to and on a level with each bulge, is a tap-hole p. The bulges may be of different heights, and may extend across the hearth or may be confined to the region of the tap-hole. When the furnace is of considerable width the tap-hole p, and the opening r through which manipulations are effected, may be situated in re-entrant portions of the furnace wall, as described in Specification 246,628. The furnace is of the tilting type with end baths described in Specification 235,346.
Patent GB-1430948-A (GB)
Title: Model building elements
IPC: E04H1/02
Filed: 1973-06-20
Abstract: 1430948 Models CELTIC INDUSTRIES Ltd & CO KG 20 June 1973 [4 July 1972] 29252/73 Heading G5G A set of building elements for modelling a ridge roof to a reduced scale comprises roof panels 4, 4<SP>1</SP> having co-operating edges formed with complementary spaced teeth (13) Fig. 2 (not shown) for interengagement in comb-like manner at the ridge, elements 11 for mounting on the ridge, and purlin elements 5 for mounting on a bearing member 1 and having grooves (27) Fig. 4 (not shown) for receiving intermediate rafters (20) provided on the undersides of the roof panels. Adjacent roof panels, in the direction of their line of fall, may be interconnected by means of press-studs provided along their edges. Gutter and gutter bracket elements, chimney elements, and rafter elements for the gable ends may also be included in the set (Figs. 5 to 8, not shown).
Patent GB-396030-A (GB)
Title: Improved packing for preserving and presenting sheets of regenerated cellulose
IPC: B65D75/06
Filed: 1931-10-21
Abstract: 396,030. Wrapping articles. SOC. ANON. LA CELLOPHANE, 5, 'Avenue Percier, Paris. Oct. 21, 1931, No. 29264. Convention date, Aug. 31. Void [Published under Sect. 91 of the Acts]. [Class 94 (i).] Folded sheets of " Cellophane " or the like are enclosed in an envelope of moisture-proof transparent regenerated cellulose. The flap f and part of the end of the envelope b may be folded along the line g-g<1>. A label may be inserted between the wrapped sheet and the envelope or between the outer folds of the sheet.
Patent GB-883062-A (GB)
Title: Improvements in and relating to the recording of television signals
Inventor: AXON PETER ERIC
IPC: H04N5/919
Filed: 1957-09-17
Abstract: 883,062. Recording television signals. BRITISH BROADCASTING CORPORATION. Sept. 11, 1958 [Sept. 17, 1957], No. 29300/57. Drawings to Specification. Class 40(3). In the magnetic recording and reproduction of television signals, the signals are split into a plurality of bands, the signals in the lowest frequency band applied to frequency modulate a carrier which is applied to a first head, and the signals in the other frequency band or bands applied directly to one or more other heads: Associated sound signals frequency modulate a second carrier and are recorded by a further head. Recording is effected upon parallel tracks on the recording medium. The Specification discusses the choice of frequencies and gives references to suitable circuits for carrying out the invention. Specification 883,063 is referred to in connection with tape drive apparatus.
Patent GB-1401707-A (GB)
Title: Liquid silica source for semiconductors
IPC: H01L21/316
Filed: 1973-06-20
Abstract: 1401707 Liq. SiO 2  source; coating with glass MOTOROLA Inc 20 June 1973 [8 Aug 1972] 29328/73 Headings C1A and C1M A liq. SiO 2  source, which may be used to form a glassy SiO 2  coating on a semi-conductor when heated, is prepared by reacting together a soln. comprising 44% ethyl alcohol, 48% ethyl acetate and 8% by wt. vinyl trichlorosilane and then adding sequentially or as a soln. a mixture comprising 64% ethyl alcohol, 8% by wt. water and 28% by wt. tetraethylorthosilicate, the wt. ratio of the mixture to the soln. being 1À5-2À5 : 1. The mixture may also contain up to 6% by wt. glycerol. The reacted solutions may be filtered using an ash-free filter paper and a 1À2 Á multi-pore filter respectively. The composition of the final soln. is 54-64% ethyl alcohol, 18-21% ethyl acetate, 13-23% tetraethylorthosilicate, 1-8% vinyl trichlorosilane and 3-10% by wt. water. The final soln. may be diluted with methyl or ethyl alcohol, for coating a 0À25 Á layer by painting, spraying or spinning on to, e.g. a diode.
Patent GB-1463257-A (GB)
Title: Reciprocating pumps
IPC: F04B9/105
Filed: 1975-07-12
Abstract: 1463257 Reciprocating pumps; pneumatic motors CHARLES S MADAN & CO Ltd 12 July 1975 [12 July 1975] 29364/75 Headings F1A and F1M A pneumatically-actuated pump comprises a motor piston 10 either integral with or connected to a reciprocable pumping piston 14 or a reciprocable pumping cylinder, Fig. 3 (not shown), a smaller motor piston area 12 being continuously connected to the air supply and a larger piston area 11 being alternately connected to air supply and exhaust under the control of a differential-area, shuttle valve 40 pneumatically controlled by piston 10 controlling passages 23, 24. Piston 10 is cushioned at the end of its strokes by O-rings 15. Exhaust port 37 has a sintered disc silencer 39. One shuttle valve 40 may control a number of pistons 10. A double-acting pump may have pumping pistons or cylinders on both sides of the motor piston.
Patent GB-672655-A (GB)
Title: Improvements in the preparation of alkali metal salts of weak acids from alkali metal chlorides
IPC: C01D7/00
Filed: 1950-11-30
Abstract: In the preparation of alkali metal salts of weak acids from alkali metal chlorides, the chloride is reacted with an acid calcium phosphate at elevated temperature, e.g. 700-900 DEG C., in the presence of water vapour or a gas containing it, e.g. combustion gases from a furnace, to form an alkali metal calcium double phosphate, and this double phosphate, preferably pulverized, is reacted, e.g. at atmospheric or super-atmospheric pressure and ambient or higher temperature, in an aqueous medium with a weak acid gas, e.g. carbon dioxide or sulphur dioxide, to produce the alkali metal salt and regenerate the acid calcium phosphate.  An example describes the preparation of potassium bicarbonate, which on calcination yields carbonate.
Patent GB-1459347-A (GB)
Title: Nozzle structures
IPC: B01F23/47
Filed: 1974-07-03
Abstract: 1459347 Nozzles; mixing apparatus FRUEHAUF CORP 3 July 1974 [14 Feb 1974] 29468/74 Headings B1C and B2F  A nozzle assembly, particularly for injecting plastics foam, comprises at least two separate inlet passages (38), (44), Fig. 7 (not shown) for plastics constituents which react in a substantially cylindrical mixing chamber 25 to form the foam, a common outlet 24, and a plastics valve disc 30 having integral tongues forming non-return valves (34, 35, 36), Fig. 3 (not shown), the valves causing the constituents to whirl in the mixing chamber. At the end of the foaming operation, a solvent through an inlet passage 46 and the valve (36) whirls through the chamber to dissolve the foam clogging the outlet and the chamber. The valves (34, 35, 36) are positioned respectively over ports (37, 40, 45), Fig. 4 (not shown) provided in a spacer disc 32, the ports (37, 40, 45) respectively communicating with the passages (38, 44) and 46.
Patent GB-646210-A (GB)
Title: Improvements in and relating to nuts or the like adapted to be embedded in a wooden,fibrous or like support
IPC: F16B37/12
Filed: 1947-11-07
Abstract: 646,210. Anchor nuts. UNITED-CARR FASTENER CORPORATION. Nov. 7, 1947, No. 29712. Convention date, Nov. 7. 1946. [Class 89(i)] [Also in Groups XXII and XXIII] An anchor nut has an externally smooth barrel 10 with a helically formed thin but wide flange 12 with a cutting edge 15 and an abutment edge 14. The barrel fits the bore of a hole in wood or other fibrous material and the nut is rotated to cause the flange to screw into the wall of the bore until the nut is embedded as shown in Fig. 1. The nut is inserted by a tool 20, Fig. 7, sliding into the nut and having a cross pin 22 that engages the abutment 14 and returns through the groove 3, Fig. 1, after the nut is home.
Patent GB-533857-A (GB)
Title: Improvements in and relating to moving targets
IPC: F41J9/02
Filed: 1939-11-10
Abstract: 533,857. Targets. HOBSON, P. Nov. 10, 1939, No. 29786. [Class 20 (i)]  A frangible target in the shape of an aeroplane is suspended from a carriage adapted to run on rails, the arrangement being such that the target can be given variation in elevation to simulate the diving and manoeuvering of planes under actual working conditions. The track is overhead and the rails 10 are supported by spaced horse-shoe shaped supports 20 ; the target 2 which is of frangible material such as glass is hollow and of the shape of an aeroplane, and is suspended by a rope 6 from a drum 24 on the carriage 7 which may be moved by hand or mechanically by an electric motor supplied from a feed line 28. The drum is held against rotation by a ratchet and a pivoted pawl 30 which may be released automatically to allow downward movement of the target by lower stops 26 fixed to certain rail supports, and re-engaged again by upper stops 31, the pawl being locked in both engaged and disengaged positions by a spring ball lock. The rope 6 passes through an aperture in a lever 46 on the carriage connected to a slipper 32 so that as the drum is freed from the pawl the slipper is brought against the supply rail 28 and the drum begins to wind up the 'rope and this continues until an enlargement 50 on the rope contacts with the lever and lowers the slipper from the conductor rail, and at this moment the pawl is actuated to engage the drum and prevent it unwinding. The track 17 on which the carriage run is provided with cross overs, hair pin bends and curves, so that the direction of the target during its movement changes suddenly and at the cross overs the rails are divided so as not to foul the suspension rope and guard rails 11 are fitted to guide the rope around the crossings.
Patent GB-1005693-A (GB)
Title: Dispensing unit
Inventor: JARRETT EDWARD WALTER
IPC: G01F11/32
Filed: 1963-07-26
Abstract: 1,005,693. Delivering measured quantities of liquid or granular material. KENWOOD MANUFACTURING (WOKING) Ltd. July 24, 1964 [July 26, 1963], No. 29792/63. Heading B8N. [Also in Division F2V] An apparatus for dispensing measured quantities of liquid or granular material comprises an electromagnetically operated plunger E having valve members B, C for closing an inlet F and outlet respectively, the plunger being hollow on the downstream side of the outlet so that the material issuing from a measuring chamber A passes through the hollow plunger. The valve B co-operates with a seat L which is resilient such that when the solenoid is actuated to close the valve B and open the valve C to dispense the material from the measuring chamber A, the seat is deflected until it abuts a guide plate H thus reducing the buzzing effect of the solenoid.
Patent GB-268404-A (GB)
Title: Improvements in or relating to vehicle wheels
IPC: B60B1/02
Filed: 1925-11-25
Abstract: 268,404. Pugh, J. V., and Rudge- Whitworth, Ltd. Nov. 25, 1925. Suspension - spoke wheels.-In a wheel in which the central plane of the rim f is disposed nearer one end of the hub a than the other, two sets of spokes m, m<1> arranged in a single zone at one edge of the rim are carried to opposite ends of the hub. The arrangement provides for the rim overhanging the brake drum or steering pivot. In the construction shown, the brake drum is carried by a ring d the coned central part e of which is clamped between the detachable and permanent hub members a, a<1> respectively. Specification 265,280 is referred to.
Patent GB-1475161-A (GB)
Title: Powder-image fusing apparatus
IPC: G03G15/20
Filed: 1974-07-05
Abstract: 1475161 Temperature control XEROX CORP 5 July 1974 [5 July 1973] 29886/74 Heading G3R The temperature at the nip between two rollers (130, 140) in an electrographic fusing apparatus Fig. 1, (not shown) is controlled by heating one or both rollers in dependence on the combined output of two temperature sensors, one associated with each roller. In Fig. 4, the sensors are thermistors 201, 205 connected in parallel and the illustrated circuitry governs the power supply to a single electric heater 235 located inside one of the rollers.
Patent GB-210181-A (GB)
Title: Improvements in or relating to aeroplanes
IPC: B64C3/40
Filed: 1922-11-01
Abstract: 210,181. Bonn, E. Nov. 1, 1922. Aeroplanes; steering, balancing, and regulating altitude.-The main wings of an aeroplane are pivoted on vertical axes 7 and can be folded back during flight until their rear edges are flush against the fuselage. Each wing is folded back by means of a cable 20 which is secured at its ends to the edges of the wing and passes over pulleys 3, 5. The pulley 5 is toothed and engages a cog-wheel 6 which engages a toothed sector 15 mounted on the semi-circular shoulder of the wing, so that when the pulley 5 is rotated, the wing turns on its pivot 7 through the medium of both the cable 20 and the cog-wheel 6. At the same time the end 12 of a support 8 pivoted to the wing slides along a groove in the fuselage. The pivot 7 is slightly inclined in order that when the wing is folded back the angle or incidence is increased. The pivots 7 may be located inside the fuselage or adjacent to its sides. The wings may be introduced partly or wholly into the body, or may be folded over one another upon its upper surface. Planes and the like, construction of.-The ribs 8 of the wings diverge from the vertical pivots 7. The wings are braced by wires 10, 14. Tanks, arrangentent and disposition of.-The fuel tank 2 is arranged to run on rails 1. Rollers 4, rotated by the pulleys 5, engage its sides in order that when the wings are folded back the position of the tank 2 is automatically varied to correct the centre of gravity. Land wheels.-The landing wheels can be folded back into the body of the aeroplane during flight. Specifications 23104/08, 30344/09, and 18661/10 are referred to.
Patent GB-839561-A (GB)
Title: Preparation of thioethers
IPC: A01N33/08
Filed: 1956-10-01
Abstract: In a process for making vinyl thioethers from acetylene and thiols free of acidic hydrogen and of olefinic or acetylenic saturation, in the presence of a strongly basic alkali metal compound as catalyst and an inert organic solvent capable of dissolving at least 18 volumes of acetylene at 0 DEG  C. and 1 atmosphere, the acetylene is absorbed at elevated pressure and a temperature not exceeding 14 DEG C. and the mixture is then heated to 100-200 DEG  C. under pressure sufficient to keep the acetylene dissolved in the liquid phase.  It is desirable to have a saturated liquid alcohol present; this may be the abovementioned inert solvent or may be additional thereto, and in the latter case it may be the thiol reactant when it contains an alcoholic substituent.  Other suitable inert solvents are certain ethers (including cyclic ethers), acetals and glycol and polyglycol ethers, and N-alkylpyrrolidones; these are such as dissolve at least 20 volumes of acetylene at 0 DEG  C. and 14 at 10 DEG  C. (at 1 atmosphere).  The alcohol mentioned above can be an alkanol, an alkoxyalkanol or a hydroxyalkyl glycol or polyglycol ether; a mercaptoalkanol serves both as alcohol and as thiol reactant.  The catalyst may be an alkali metal oxide, hydroxide, cyanide, sulphide, alcoholate or mercaptide; the alkali metal itself may be used to generate the catalyst.  The amount of catalyst is usually 1-10% of the thiol but may be up to the equivalent amount especially when the reactant is ethane-1 : 2-dithiol.  The acetylene can be diluted with an inert gas.  Suitable thiols are R(SH)n, where n is 1 or 2 and R is alkyl, cycloalkyl, aralkyl or aryl (or the corresponding divalent radical) optionally p  subtiituted e.g. by hydroxy, amino, ether, thioether, ester, amide or heterocyclic groups; acidic hydrogen and unsaturation must be absent.  Examples are given where R is methyl, ethyl, isopropyl, iso-, s-, and t-butyl, 2-ethylhexyl, decyl, n- and t-dodecyl, tetradecyl, octadecyl, b -hydroxyethyl, carbethoxymethyl, b  - aminoethyl, phenyl, o-aminophenyl, benzyl, phenoxyethyl, cyclohexyl, tetrahydrofurfuryl, thenyl, ethylene, trimethylene, tetramethylene, pentamethylene and p-xylylene.  Other suitable thiols are mentioned in which R is alkyl, hydroxyalkyl, alkoxyalkyl (including polyglycol derivatives), alkylthioalkyl, aminoalkyl (which may be N-substituted and in which the N-atom may be cyclic), cyanoalkyl, alkoxycarbonylalkyl (which may be substituted in the esterifying group), aminocarbonylalkyl (optionally N-substituted), cycloalkyl, cycloalkylalkyl, aryl, haloaryl, hydroxyaryl, aminoaryl, aralkyl, phenoxyalkyl, heterocyclylalkyl, benzthiazolyl, alkylene, hydroxyalkylene, oxybisalkyl or arylenebisalkyl.  Specification 837,802 also is referred to.
Patent GB-520046-A (GB)
Title: Improvements relating to winches
IPC: B66D1/14
Filed: 1938-10-15
Abstract: 520,046. Winches. WILD & CO., Ltd., M. B., AITKEN, R. L., SMALL, E., and VARLEY, H. F. Oct. 15, 1938, No. 29929. [Class 78 (v)] In. winches of the type employing a storage drum in addition to one or more rope actuating drums, substantially uniform tension of the rope c is maintained between the actuating drum a and the storage drum b by driving the drum b from the power shaft d of the drum a and introducing between the shaft g of the drum a and the shaft p of the drum b a friction clutch i and a uni-directional clutch m. Increased tension on the rope c caused by piling up of coils on the drum b, when winding on to the storage drum, will be prevented by slip of the clutch j, and in the reverse movement the one-way clutch m will allow of slower rotation of the drum b. The motion of drum b in the unwinding direction may be controlled by a uni-directional brake w having adjustable spring-pressed friction discs. A rope guide roller or rollers may be arranged between the actuating and storage drums.
Patent GB-1009992-A (GB)
Title: Coupling device, especially for coupling a hose to a fixed milk conveyor pipe in a cow-house
Inventor: CHRISTENSEN SVEND AAGE
IPC: F16L37/26
Filed: 1962-08-03
Abstract: 1,009,992. Valves; pipe joints CHRISTENSEN & CO. A/S. S. A. Aug. 3, 1962,No. 29986/62. Headings F2G and F2V. A valve has a through-bore 2 connected in a milk pipe-line and embodying a stainless steel bush 2<SP>1</SP>; a port 6 leads from the bore 2 to the bottom surface 5 of a dovetail-shaped groove in the valve body 1. In the groove slides a closure member 11 which under gravity closes off the port 6, the seal being enhanced due to suction in the bore 2 or by making the member 11 non-circular it is wedged against the surface 5 around the port 6 when rotated by a handle 12; such wedging also prevents unintentional operation. The valve is opened by forwardly sliding the member 11 and inserting a coupling element 7 in the dovetail so that the port 6 is connected to a hose 7<SP>1</SP> via a duct 9 in the element 7. The element 7 incorporates a non-circular flange 8, which upon rotation of the element, is wedged into the dovetail and beneath the member 11. Movement of the latter is defined by stops.