baber/WOPTO huggingface dataset:
Patent GB-1527740-A (GB)
Title: Castors
IPC: B60B33/02
Filed: 1975-12-23
Abstract: 1527740 Castors E BLICKLE [trading as HEINRICH BLICKLE METALLWARENFABRIK] 23 Dec 1975 [30 Dec 1974] 52714/75 Heading A4U A castor comprises a wheel fork 24 and a spring- loaded member 4 which is mounted in a fixed housing 2 for movement by an arm 11 fixed to the member 4 between a position shown in which the member 4 engages between the legs 22, 23 of the fork 24 to prevent swivelling of the fork and a position in which the member 4 is retracted from between the legs 22, 23 to permit the fork to swivel, Fig. 3 (not shown). The spring 7 is mounted between a peg 8 on the member 4 and a peg 9 on a bracket 10 detachably fixed in the housing 2. Rounded projections 18, 19 on the arm 11 engage cams 16, 17 on the housing 2 whereby the arm is releasably retained in its alternative positions. If the arm is moved from its upper position to the position shown in Fig. 2, the member 4 can automatically engage between the fork legs due to the spring loading.
Patent GB-1483478-A (GB)
Title: Spinning projectile
IPC: F42B12/12
Filed: 1974-12-05
Abstract: 1483478 Hollow charge rockets and projectiles WERKZEUGMASCHINENFABRIK OERLIKON BURHLE AG 5 Dec 1974 [21 Dec 1973] 52755/74 Heading F3A A spinning rocket or projectile comprises a hollow charge 30 which is displaced forwards (to the position shown) by propellant gases and is locked in a position where it does not rotate (or only slowly) with the body 4 of the rocket. The hollow charge is supported by ball races 43, 46 and is driven forwards by a piston 13 when a percussive primer 20 ignites a propellant charge 18. A spring ring 50, movable with the hollow charge, snaps into a groove 56 to retain the charge in its forward position. The gases from the charge 18 also pass through nozzles 27 to spin the rocket and through bores 29 to ignite the propulsive charge 11 of the rocket. A portion of the gases from the charge 11 act on the piston, through the bores 29, to help hold the hollow charge forward during the acceleration period.
Patent GB-1435715-A (GB)
Title: Impact drivable fixings particularly for attaching components  to timber elements
IPC: E05D5/02
Filed: 1972-11-16
Abstract: 1435715 Dowels ARTHUR SHAW MFG Ltd 16 Nov 1973 [16 Nov 1972] 52916/72 Heading F2H A fixing pin drivable by impact comprises a substantially cylindrical body 15 formed with axial fins 15a at spaced apart circumferential positions, and such that if the body 15 is considered as being divided into four longitudinal sections bounded by two diametrical planes 16, 17 at right angles, the side faces 15c, 15d of any fin 15a wholly within a longitudinal section are non-radial, but the side face 15c nearest the plane 16 extends substantially parallel to the plane 17. There is thereby facilitated moulding of the pin by a die having two parts separable by relative movement in the plane 17. The pin may be used for attaching components to timber, e.g. hinges to frames, casements, doors, &c. The pin may be utilized as a part 6 of a component 1, Fig. 1, of a hinge and driven into a timber frame 8, a second hinge component 2 being secured to a timber frame 11 by a screw threaded spigot 7.
Patent GB-1109926-A (GB)
Title: Cleaning composition
Inventor: HARRISON JOHN
IPC: C11D7/08
Filed: 1965-12-15
Abstract: A composition for cleaning ceramic and cementitious materials comprises a mixture of hydrofluoric acid, in a proportion of between 20 and 50% by volume of the total mixture, and hydrochloric acid with or without sulphuric acid and/or nitric acid, the strength of each acid lying within the range of neat acid to diluted acid containing 20% (by weight) neat acid.
Patent GB-1372531-A (GB)
Title: Method of and apparatus for preventing the efflux gases from  industrial furnaces during breaks in their operation
IPC: F27B1/08
Filed: 1971-11-17
Abstract: 1372531 Controlling furnace operation KLOCKNER - HUMBOLDT - DEUTZ AG 17 Nov 1971 [10 Dec 1970] 53442/71 Heading F4B A method for preventing the efflux of gas from an industrial furnace during an operation stoppage of the furnace, includes the step of providing a subatmospheric pressure in the furnace at least during the stoppage. In a multiple hearth furnace 1 heat exchangers 2, 3 are provided on both sides, the heat exchanger 3 being supplied with gases from the upper zone of the furnace, the heat exchanger 2 from the central zone. The furnace installation also contains cyclones 6 and 15, blowers 7 and 16 and conical dust collectors 8-14. A gas scrubbing plant 19 is also provided; as is a fresh air inlet 21 with a metering valve 22. During normal operation, gas is withdrawn by means of the blower 7, supplied to the heat exchanger 2, and after removal of dust in the cyclone 6 blown back into the bottom of the furnace. The gases passing through the heat exchanger 3 go either to the atmosphere or to an installation for the manufacture of sulphuric acid. Valve 24 is closed, cooled gases passing through the cyclone 15 being returned to the furnace. If the multiple hearth furnace should cease operation, the blower 16 is operated at full speed and the valve 22 is closed to create a sub-atmospheric pressure in the furnace. If a long stoppage of the furnace is anticipated, valves 22 and 24 are opened. Thus the quantity of fresh air entering the furnace to produce after combustion of the products of the furnace, is removed from the furnace through the conduit 20 and scrubbing plant 19.
Patent GB-1133575-A (GB)
Title: Evaporation of liquid from solutions containing dissolved salts
IPC: B01D3/34
Filed: 1965-12-16
Abstract: 1,133,575. Evaporation of liquids; demineralization of saline water. G. S. LIGHT. 16 Dec., 1965 [11 March, 1965], No. 53493/65. Heading B1B. Liquid is evaporated from a solution, e.g. saline water, by heating the solution in a substantially closed chamber under positively applied air pressure so that no vapour Bubbles form within the solution, and removing vapour from the surface of the heated solution. The vapour is condensed to obtain purified liquid. e.g. demineralized water. As shown the process is carried out in a triple-effect evaporator comprising three vapour chambers 51, 61, 71 surrounded by heating chambers 52, 62, 72. respectively. Saline water flows into chambers 51, 61, 71 through ports 53, 63, 73, respectively. Chamber 51 is heated by hot gases .circulating through chamber 52 and heater 90, which is controlled by temperature-sensing device 94. Blower 95 forces air through ports 54, 64, 74 into chambers 51, 61, 71: and airvapour mixtures leave through ports 56, 66, 76, respectively. The throttle-valves in these ports are adjusted so that the air-vapour mixture is just above the saturation pressure of steam for the respective water surface temperature. The air-vapour mixture from chamber 51 is introduced into heating chamber 62, and the air-vapour mixture from chamber 61 is conveyed to heating chamber 72. The mixture of air and condensate from chambers 62 and 72 is conveyed via ports 69 and 79 to duct 97, where the air is separated. The demineralized water flows through heat exchanger and condenser unit 80 where it preheats the saline water flowing through conduit 81 to the three vapour chambers, and where it condenses the vapour leaving chamber 71 via port 76. Another system for the demineralization of water is described in conjunction with Fig. 3 (not shown), wherein saline water is heated (without vaporization) under positivelyapplied air pressure in a stainless steel chamber, and the heated saline water flows through a throttle valve into a second chamber where flash vaporizaton occurs. The vapours leaving the second chamber are condensed to obtain demineralized water.
Patent GB-535025-A (GB)
Abstract: 535,025. Lactams. DU PONT DE NEMOURS & CO., E. I. Sept. 25, 1939, No. 26599. Convention date, Sept. 29, 1938. [Class 2 (iii)] Lactams are produced by rearrangement of cyclic ketoximes by adding the ketoximes to sulphuric acid maintained above the temperature at. which the reaction begins. The acid maybe heated to 90‹-130‹C., the ketoxime being added at such a rate that the temperature remains within this range. In examples cyclohexanone oxime is added in small portions to sulphuric acid of 90 per cent. strength at 90‹- 95‹C., the product being finally cooled to 10‹C.' poured onto ice, neutralized with caustic sodaand the e-caprolactam extracted with chloroform; (2) cyclopentanone oxime is treated similarly, yielding #-valerolactam. The process may be applied to the treatmentof othercyclicketoximes such as the oximes of cycloheptanone, cyclooctanone, cyclopentadecanone, cyclohexadecanone, 2-methyl cyclopentanone, 2-methylcyclohexanone, 4-tertiarybutyl cyclohexanone, menthone 2-keto-1-2-3-4, tetrahydronaphthalene and other substituted and unsubstituted cyclic ketoximes.
Patent GB-1441700-A (GB)
Title: Weft mixer devices for looms
IPC: D03D47/34
Filed: 1974-12-11
Abstract: 1441700 Looms SOC ALSACIENNE DE CONSTRUCTIONS MECHANIQUES DE MULHOUSE 11 Dec 1974 [17 Dec 1973] 53674/74 Heading D1E A weft mixer comprises a series of fingers 1a-f pivotable on a common axis and guided by a grid. The frame of the grid has opposite sides 21, 22 of unequal length. Guide bars 26a-e are pivotally mounted at the longer side. The length of this side is equal to the sum of the widths of the bars and fingers. The shorter side is as long as the sum of the bar widths plus the width of one finger. Thus only one bar is able to move to the active plane P at a time. Due to the short grid length at plane P the fingers are in substantially the same position when active. Multiple grids are provided for looms weaving several fabrics.
Patent GB-1278308-A (GB)
Title: An improved heat exchanger
Inventor: TIEFENBACHER EBERHARD
IPC: F28F9/02
Filed: 1969-11-03
Abstract: 1278308 Heat exchangers DAIMLER-BENZ AG 3 Nov 1969 53790/69 Heading F4S In a heat exchanger comprising a plurality of tubes 2 disposed in parallel spaced apart planes within a casing 1, the tubes have flattened rectangular ends which together with spacing strips 6 are received in apertures at opposite sides of the casing. The strips 6 are provided with slots 7 to engage flanges 8 formed in the casing adjacent the tube ends. One heat exchange fluid flows through the tubes, and the other flows over the tubes in a general countercurrent direction entering the casing through inlet 3 and leaving through outlet 4. In an alternative embodiment (Fig. 3, not shown) the tubes in adjacent planes are staggered with respect to one another. The heat exchanger may be of curved construction (Fig. 4, not shown) and surround a turbine (14).
Patent GB-1246847-A (GB)
Title: Liquid crystal display element having storage
IPC: G09F9/30
Filed: 1968-11-18
Abstract: 1,246,847. Electro-optical element containing cholesterol and like compounds. R.C.A. CORPORATION. 18 Nov., 1968 [13 Dec., 1967], No. 54586/68. Heading C2U. [Also in Division H4] A light valve or display device comprises a mixture of at least one nematic liquid crystal of the type that exhibits non-destructive turbulent motion when an electric current of sufficient magnitude is passed therethrough i.e. upon the application of a D.C. or low-frequency electric field the single-phase homogeneous molecular solution separates into two phases causing incident light to be scattered, with at least one member of the group consisting of cholesterol, cholesterol derivatives and cholesteric liquid crystals. The mixture preferably comprises cholesteryl oleate and cholesteryl chloride, and at least one member of the group consisting of anisylidene-p-aminophenylacetate, p n - butoxybenzylidene - p - aminophenylacetate and anisylidene-p-aminophenylbutyrate. The mixture exhibits storage of its. light scattering, emulsion-like state after removal of the electric field initiating the state. To return the mixture to its transparent state a relatively high-frequency A.C. field is applied to the mixture. The Specification includes a table of alternative nematic liquid crystals, cholesterol derivatives and cholesteric liquid crystals, and describes various mixtures by weight.
Patent GB-1511495-A (GB)
Title: Halogenated thiobisphenol antioxidants
IPC: C10M169/00
Filed: 1975-12-18
Abstract: 1511495 Halogenated thiobisphenols COALITE & CHEMICAL PRODUCTS Ltd 18 Dec 1975 [18 Dec 1974] 54723/74 Heading C2C [Also in Divisions C3 and C5] Compounds of the formula wherein one of the two T's in each nucleus denotes a halogen and each of the others two T's denotes an alkyl or alkenyl group, may be obtained by (1) reacting one or more halogenated alkyl- or alkenyl-phenols of the formula wherein one T is halogen and the other T is alkyl or alkenyl, with sulphur dichloride in a hydrocarbon solvent; or (2) halogenating a 2,2<SP>1</SP>- thiobisphenol of the formula wherein each T<SP>1</SP> is an alkyl or alkenyl group in the 4- or 6-position.
Patent GB-1139440-A (GB)
Title: Fire extinguishing apparatus
Inventor: EVANS JOHN LAWRENCE
IPC: A62C5/00
Filed: 1966-11-08
Abstract: 1,139,440. Fire-extinguishing foam apparatus. PYRENE CO., Ltd. 4 Dec., 1967 [8 Nov., 1966], No. 45998/67. Heading A5A. Fire-fighting foam apparatus comprising a tubular foam generator incorporating jet head 16 is mounted on a tripod consisting of legs 23 pivotally mounted in bracket 24, and base plate 22 supporting Y-piece 17 by pivoted plate 19, Y-piece 17 being provided with horizontally opposed liquid inlets at 27, 28.
Patent GB-1221715-A (GB)
Title: Device for the wet-treatment of loose material, especially textile material
IPC: D06B3/20
Filed: 1968-11-20
Abstract: 1,221,715. Scouring raw wool. VEPA A.G. 20 Nov., 1968 [1 Dec., l967], No. 55005/68. Heading D1L In the continuous scouring of raw wool in a bath by passing first through a floating zone and then through a submerged zone below a sieve drum 5 partially immersed in the bath, liquid flows into the sieve drum as a result of the differential liquid level in the drum and the bath, passes into a collecting container 8 at at least one end of the drum, and is recycled to the bath via a removable pump 9 at the base of the collecting container and a distribution box 10 extending across the whole working width of the bath. Collecting containers may be arranged one at each end of the drum having separate distribution boxes or there may be a single divided distribution box. A plurality of drums 5 arranged in series may have a common collecting container and pump. As shown, raw wool 12 is treated by passage under a plurality of sieve drums 5 in a bath 3 having perforated base 2, each drum having a collecting container 8, pump 9 and distribution box 10. After treatment, the wool passes between squeeze rolls 17.
Patent GB-1322865-A (GB)
Title: Harrow
IPC: A01B19/06
Filed: 1971-11-29
Abstract: 1322865 Harrow H VISSERS NV 29 Nov 1971 [2 Dec 1970] 55182/71-Heading A1B A harrow comprises a frame 5 and at least two reciprocatingly driven harrow beams 10, directed transversely to a forward movement of the frame, the beams being movably connected to each other and to the frame by means of at least two parallel levers 8, and at least one of these levers consists of two lever parts (8a), (8b), Fig. 3 (not shown), which are pivoted round a common axis (40) with respect to each other and to the frame. The lever parts may be either pivoted round each other or supported separately round the pivot (40), Fig. 4 (not shown).
Patent GB-1068730-A (GB)
Title: Clamping device and mechanism and apparatus employing the device
IPC: H01R43/04
Filed: 1965-12-31
Abstract: 1,068,730. Producing metal articles; jointing by stamping. AMP Inc. Dec. 31, 1965 [Jan. 5, 1965], No. 55332/65. Headings B3A and B3Q. [Also in Divisions B8, E2 and H2] Apparatus for crimping an electrical connector to a wire and applying an insulating housing to the crimped connector comprises a first station at which the connector is arranged to be crimped to the wire, a second station spaced from the first station and at which the housing is arranged to be applied to the connector and a wire transfer mechanism for transferring the wire when the connector has been crimped thereto at the first station. The apparatus comprises a baseplate 8 mounted on a press platen and a crimping die mounted on a press ram which is movable to and from an anvil 12 on the plate. Connectors 4 are fed one at a time between guides 16, 18 on a block 14 to the anvil 12. A wire 2 is positioned between jaws at one corner of a wire transfer plate 56 so as to lie between the anvil and die. The crimping ram is operated to crimp the connector to the wire, shear the connection between the connectors and by a rod attached to the ram release a latch on a jaw to allow the jaw to close. The ram and the rod are withdrawn and another connector is fed to the anvil. A pneumatic cylinder 110 is operated and on the forward stroke of the rod 108 it rotates a pivoted lever carrying a finger 120 which ejects the wire from the clamp at the next comer of the plate 56 and on the return stroke a pawl 102 engages a tooth 98 on a ratchet plate 96 to index the plate 56 through 90 degrees. An insulating housing 6 is fed by a reciprocating block 30 with guide rails 22 and feed pawls 24, 26 on to the connector on the end of the wire 2. A pneumatic cylinder is actuated to cause a pair of fingers 28 to pivot to grip the housing until the housing is partly over the connector when the fingers are released and the housing is pushed fully on to the connector. A pneumatic cylinder is operated to move the jaw and open the clamp.
Patent GB-1377388-A (GB)
Title: Process for preparing purine compounds
IPC: C07D473/38
Filed: 1971-11-29
Abstract: 1377388 Purine compounds SAGAMI CHEMICAL RESEARCH CENTER 29 Nov 1971 [9 Dec 1970 (2)] 55407/71 Heading C2C Purine compounds of the general formula wherein X is hydroxy or amino, and Y is hydrogen, hydroxy or amino, and the acid-addition salts thereof are prepared by a process which includes reacting 4(5)-amino-imidazole-5(4)- carbonitrile with a reagent selected from formic acid, ammonium formate, and guanidine at a temperature of from about 80‹ to about 170‹ C. or with urea in the heat-molten state in the absence of a solvent at a temperature of from about 80‹ to about 170‹ C. The invention also comprises a process for preparing xanthine and its acid-addition salts by reacting 4(5)-aminoimidazole-5(4)-carboxyamide, which has been prepared by hydrolysing 4(5)-amino-imidazole- 5(4)-carbonitrile with hydrochloric acid with urea in the heat-molten state in the absence of a solvent at a temperature of from about 80‹ to about 170‹ C.
Patent GB-1150647-A (GB)
Title: Process for Infrared Spectral Analysis
IPC: G01N21/55
Filed: 1966-04-29
Abstract: 1,150,647. Optical apparatus. BARNES ENG. CO. April 29, 1966 [May 4, 1965], No. 55799/68. Divided out of 1,150, 646. Heading G2J. A collecting device for liquid phase pyrolysates comprises a container 13 containing an electric heating element 10 shaped at 11 to receive the sample to be pyrolysed, an opening in the top of the container receiving a removable plate 20 which is transparent to electromagnet radiations of the wavelengths of interest for spectral analysis, one side of the plate 20 being exposed to the interior of the container 13 and the other side to the atmosphere outside the container, a connection 18 for connecting the container 13 to a source of subatmospheric pressure via a valve 16 operable by a handle 17 and connections 9 for supplying electric power to the element 10. To condense the liquid on to the plate 20, the latter may be strongly cooled such as by a metal block 30 which has been cooled in liquid nitrogen. The plate 20 is then spectrally analysed either by transmission or by attenuated total reflection.
Patent GB-1212628-A (GB)
Title: Preparation of salicylanilides derivatives
Inventor: CHAMBERLIN EARL MARTIN
IPC: A61K31/165
Filed: 1968-11-25
Abstract: 1,212,628. Salicylanilide derivatives. MERCK & CO. Inc. 25 Nov., 1968 [1 Dec., 1967], No. 55818/68. Heading C2C. Salicylanilide derivatives of the formula wherein each of n and n<SP>1</SP> is 0, 1, 2 or 3, each of X and X<SP>1</SP> is halogen, C 1-5  alkyl, halogenated C 1-5  alkyl, NO 2 , CN, halogenated C 1-5  alkoxy or halogenated C 1-5  alkylthio, Q is 0 or 5; Y is H or OH, and Z is Cl, Br or I, and in which Ring C is linked to ring B at the 3<SP>1</SP> or 4<SP>1</SP> position of ring B are prepared by reacting salicylanilide derivatives of the above formula in which 2 is H with bromine, chlorine, iodine, iodine chloride or iodine bromide. 31 - Chloro - 4<SP>1</SP>- (p - chlorophenoxy) - salicylanilide is obtained by reacting salicylic acid with 4 - amino - 2 - chlorophenyl - p - chlorophenyl ether, resulting from the reduction of 2 - chloro - 4 - nitro - phenyl - p - chlorophenylether, which is prepared by reacting 3,4-dichloronitrobenzene with p-chlorophenol.
Patent GB-1424845-A (GB)
Title: Method of froth flotation
IPC: B03D1/008
Filed: 1973-12-06
Abstract: 1424845 Froth flotation DOW CHEMICAL CO 6 Dec 1973 [7 Dec 1972] 56649/73 Heading B2H In a froth flotation process the frothing agent is a compound of the formula: where A is an alkylene group having 2 or 3 carbon atoms and R is methyl, ethyl, npropyl, i-propyl, i-butyl or t-butyl. The process is suitable for ores of Pb, Zn, Cu, Mo, Ni, Co or Sb, particularly for complex Mo-Cu ores, and for the removal of coal fines from coal. Xanthates, dithiophosphates, thioncarbamates, phosphocresylic acid, or diphenyl thiourea may be used as a collector.
Patent GB-1120149-A (GB)
Title: Improvements in or relating to graft polymers
Inventor: ZILKHA ALBERT
IPC: C08G81/02
Filed: 1966-12-19
Abstract: A graft polymer of a polyalkylene oxide on starch, dextrin, amylose or amylopectin is made by reacting an alkali metal or quaternary ammonium alkoxide derivative of the polysaccharide with at least one aliphatic or aromatic alkylene or dialkylene oxide, containing 2-10 C atoms, under essentially aprotic conditions. Hydroxyalkyl and hydroxyaryl derivatives of the polysaccharide may also be obtained when appropriate quantities of the alkylene oxide are used. Cross-linked products are obtained when dialkylene oxides or epihalohydrins are used. Specific etherifying reagents are ethylene, propylene, butylene and styrene oxides, butadiene monoepoxide and diepoxide, vinyl cyclohexene diepoxide and epichlorhydrin.  The reaction may be effected in such aprotic solvents as, e.g. tetrahydrofuran, dioxane, dimethylsulphoxide or dimethylformamide. The alkoxide derivative of the polysaccharide may be prepared by the method of Specification 1,058,424, e.g. by reaction of potassium naphthalene on starch or dextrin.  Alternatively, it may be prepared by reaction of the polysaccharide and an alkali metal alkoxide; trimethylbenzyl ammonium hydroxide or methoxide may otherwise be used. Soluble, corn, wheat, potato or rice starch is suitable. The product may be purified by precipitation with benzene, benzine, acetone, ether or petrol ether; neutralization may be effected with tartaric or acetic acid, the acid salt formed being removed by precipitation or dialysis, or the graft polymer being selectively precipitated from the neutralized solution.