baber/WOPTO huggingface dataset:
Patent GB-1458829-A (GB)
Title: Nitrodiphenylamine hair dyes
IPC: C09B51/00
Filed: 1973-12-21
Abstract: 1458829 Nitrodiphenylamine hair dyes BRISTOL-MYERS CO 21 Dec 1973 [26 Dec 1972] 59333/73 Heading C4P [Also in Division D1] Direct dyes for dyeing human hair of Formula I where R is an electron-donor group, y is 0 or 1 and x is 1 or 2 are prepared by reacting a mono- or dinitrofluoro (or chloro)benzene with aniline or an R-substituted aniline. R is preferably C 1-6  alkyl, -OH, -O-aliphatic or -NR 1 R 2  where R 1  and R 2  are H or aliphatic, the aliphatic groups in R having 1 to 6 atoms. Dyes of Formula IV  where R<SP>5</SP> is -OH, -NH(hydroxyalkyl), -N(hydroxyalkyl) 2  or -OC 1-6  alkyl and of Formula V are claimed per se, the hydroxyalkyl groups in Formulµ IV and V having 2 to 4 C atoms and 1 to 3 OH groups. The dyes of Formula I give yellow, orange and red shades when used to dye human hair and may be used together with other dyestuffs.
Patent GB-1321460-A (GB)
Title: Preparation of zeolites
IPC: C01B39/20
Filed: 1970-12-18
Abstract: 1321460 Synthetic zeolites MOBIL OIL CORP 18 Dec 1970 [18 Dec 1969] 60258/70 Heading C1A A synthetic alumino-silicate zeolite is prepared by thermally crystallizing a reaction mixture containing silica, water, at least two cations or precursors thereof and an alumina-containing clay (e.g. kaolin, halloysite or montmorillonite), the amount of alumina in said mixture other than that contained by the clay being insufficient to permit crystallization of a zeolite. Preferably all the alumina is provided by the clay which may be calcined before use. Non- reactive solids (e.g. α-alumina, titania, zirconia, zircon, barium sulphate or nickel) may be added to the reaction mixture which may be spray dried before heating to effect the crystallization in which the spray dried particles may be in contact with added water or steam. The product may have the formula or where M is a mixture of tetramethyl ammonium cation and alkali metal. The product may be ion exchanged, e.g. into a form containing rare earth ions and/or hydrogen ions or with NH 4 Cl.
Patent GB-1248698-A (GB)
Title: Improvements in or relating to laminated grinding wheels
Inventor: GRAHAM RICHARD HUGHES
IPC: B24D7/02
Filed: 1969-12-10
Abstract: 1,248,698. Grinding wheels. CINCINNATI INDUSTRIES Inc. 10 Dec., 1969 [16 Dec., 1968], No. 60311/69. Heading B3D. [Also in Division C4]  A laminated grinding-wheel comprises layers of universally stretchable paper at least some of which have abrasive particles bonded to one surface thereof by a thermosetting resin, the resin also serving to unite the layers. Aluminium oxide, silicon carbide, &c. may be bonded to previously sized crepe paper by means of a heat-cured, unmodified phenol-formaldehyde resin containing a filler, e.g. cryolite. In manufacture, paper layers 13-17 may be stacked with their abrasive surfaces facing outwardly of the wheel centre A-B, intervening layers 18-21 of uncoated paper being optionally provided, and the stack may be compressed between platens at about 300‹ F./1800-2800 p.s.i. to the required wheel thickness. A diamond dressing cutter or a stamping press then produces the required profile. The wheel may be reinforced, e.g. by means of fibreglass.
Patent GB-1356953-A (GB)
Title: Automatically controlled agricultural machine
IPC: A01B69/04
Filed: 1970-12-22
Abstract: 1356953 Automatic agricultural machines B RICHARDSON 16 Dec 1971 [22 Dec 1970] 60993/70 Addition to 1268181 Heading B7H An agricultural machine as disclosed in Specification 1,268,181 is guided by a system comprising a main feeler 14 and laterally displaced feelers 8, 9, and 10. The feelers 8, 9 and 10 are mounted on a shaft 1 by collars 11, 12, and 13 while the feeler 14 is disposed between collars 16, 17. The feeler 14 actuates hydraulic valves 19, 20 which signal lateral deflection to steering rams A and B. When the feeler 14 is lowered into an open furrow, a valve 21 is deactuated. Valves 2, 3 and 4 are arranged above collars 11, 12 and 13 respectively, such that when the feelers are depressed the plunger of the corresponding valve drops into a groove in the respective collar 11, 12, 13. During reversal of the machine, the feeler 14 is raised, thus operating valve 21 which conditions valves (22, 23), Fig. 2 (not shown), so that signals pass from valves 2, 3 or 4 to the steering rams (A and B). When one of the feelers 8, 9 or 10 drops into a furrow, steering is applied until feeler 14 drops into the furrow to allow signals to pass from valves 19 and 20 to the steering rams.
Patent GB-1249810-A (GB)
Title: Bulging apparatus
Inventor: NAKAMURA MASANOBU
IPC: B21D26/02
Filed: 1969-12-22
Abstract: 1,249,810. Stamping. M. NAKAMURA. 22 Dec., 1969, No. 62375/69. Heading B3Q. Apparatus for bulging a pipe 5 in a die-cavity 4 by fluid-pressure comprises a connection 8 to a hydraulic generator 6, 9, a hollow piston 13 for pressing against one end of the pipe and an airvent pipe 10 passing through the piston. The upper, pivoted die-section 2 is clamped to the lower section 3 by a sleeve 19 with a frustoconical bore. One end of the pipe is closed by an adjustable plug 22. Valves 12, 29 in the pipe 10 and in a supply pipe 28 are opened during filling of the pipe 5 with hydraulic fluid through the chamber 6. In another construction, Fig. 2 (not shown), pistons are used at each end of the diechamber to apply pressure to the tube, and the top die-section is turned about its pivot (61) hydraulically. A composite piston (50, 55), providing a tapering annular recess for gripping the right-hand end of the tube, has a central passage (53) through which fluid from the tube passes behind the piston.
Patent GB-738814-A (GB)
Abstract: 738,814. Valves. ETABLISSEMENTS METTETAL SOC. A R.L. Jan. 25, 1952 [May 17, 1951], No. 2095/52. Class 135. [Also in Group XI] A safety device for regulating the gas supply to a heating apparatus has a press-button valve 39 for a primary supply of gas to a pilot burner 32 and two valves 43, 45 actuated by a bimetal strip 31 to control respectively a secondary pilot supply and the main supply to the apparatus. On depressing the spring-loaded button 42 the valve 39 opens to allow gas from the inlet 34 to pass to the pilot burner 32 where it is ignited and heats the bimetal strip 31 which, after an interval, opens a spring-loaded valve 43 allowing gas to pass from the inlet to the pilot via passage 37 and regulating screw 58, so that the valve 39 may be closed. Further movement of the strip takes up lost motion between the valve 43 and a rod 49 to open the main gas valve 45 allowing gas to pass to the burners. The passage 37 may be closed at 58 and the pilot gas supply taken from a pipe 57 controlled by an atmospheric thermostat. The gas inlet pressure through the main valve may be regulated by a butterfly valve 53 which may be opened through a ring 55 by the button 42 and adjusted or closed manually.
Patent GB-2000046-A (GB)
Title: Catalytic Conversion of Exhaust Gas
IPC: F01N13/04
Filed: 1978-06-27
Abstract: A catalytic process for exhaust emission control in internal combustion engines designed to avoid poisoning of the catalyst by a component or components of the exhaust stream. The catalyst is operated at a temperature eg. >/=850 DEG C at which the said components eg. lead compounds are substantial in the vapour phase. In a preferred embodiment the catalyst units 1<1>, 2<1>, 3<1>, 4<1>, 13 & 14 are disposed at or near the exhaust ports 5<1>-8<1> of the engine so that the catalyst is maintained at the required temperature. Preferably the exhaust is supported by a honeycomb or on a pack of pellets, of washcoated metal or silicon nitride. <IMAGE>
Patent GB-2027480-A (GB)
Title: A locking pivot assembly
IPC: E05D11/10
Filed: 1978-06-30
Abstract: The locking pivot assembly comprises a ramp element (10) connected to a platform (11) by a pair of links (14). The links are pivotable about a first axis (13) fixed relative to the ramp element (10) and a second axis (14) fixed relative to the platform (11). A projection (20) stands proud of the ramp surface (18) so that when the platform is vertical the projection (20) contacts the platform surface (17) at or above the level of the second axis (14), and the end of the ramp surface contacts the platform surface locking the pivot assembly. In order to free the ramp element (10) to pivot relative to the platform (11), the ramp element (10) must be slid upwardly relative to the platform (11). The locking assembly is particularly useful in load lifting and lowering apparatus for vehicles. <IMAGE>
Patent GB-2002085-A (GB)
Title: Crush resistant hose
IPC: B29D23/00
Filed: 1978-07-31
Abstract: Industrial tubing comprising at least one helix of a polyolefin integral with the tubing wall to produce a crush-resistant tubing. In particular a crush-resistant vulcanised rubber tubing is provided which has formed integral with the wall thereof at least one helix of high density polyethylene.
Patent GB-2035351-A (GB)
Title: Dyes for direct positive emulsions
IPC: C09B23/06
Filed: 1978-11-20
Abstract: Desensitizing dyes for direct positive emulsions are described which have general formulae I and II:-   <IMAGE> in which R1 and R2 are each H or alkyl, alkoxy or aryl groups, R3 and R4 are each alkyl groups, R5 is alkyl, aryl or aralkyl, L is a polymethin bridging group, A is a nitrogen containing heterocylic nucleus and X<-> is an anion. Preferred nuclei represented by A are pyrrolo (2,3-b) pyrazine, benzoxazole, benzthiazole, benzimidazole, pyrrole, indole, rhodamine, pyrazolone and thio-hydantoin. Methods of preparing N-methyl-N-(2-pyrazinyl)-hydrazine, and 6,7-dihydro-5,7,7-trimethyl-6- methylene-5H-pyrrolo [2,3-b] pyrazino are given.
Patent GB-2012762-A (GB)
Title: 5,6-dihydro prostacyclin derivatives
IPC: A61K31/343
Filed: 1978-12-14
Abstract: Compounds (I> <IMAGE>  where    R is a carboxyl group or a derivative thereof, D is C2-C18-alkylene chain; one of R1 and R2 a radical Z (which is hydrogen, deuterium, tritium, C1-C12 alkyl, C2-C4alkenyl, C2-C4alkynyl or phenyl) or a -X-C1-C6-alkyl group where X is -O- or -S-, and the other is hydrogen, deuterium, tritium, halogen, hydroxy, -X-C1-C6alkyl, with X as defined above, or a R7-COO- or R7-SO2-O- group in which R7 is C1-C6alkyl, C6-C10aryl or C7-C12arylalkyl, R1, R2 and the carbon atom to which they are bound form a   <IMAGE> group, with X as defined above, a   <IMAGE> group in which R8 is hydrogen, C1-C8alkyl or aryl,  or a   <IMAGE> group in which X1 and X2, whether the same or different, are oxygen or sulfur and A1 is C2-C18alkylene, unsubstituted or substituted with halogen;    R3 is hydrogen or C1-C6alkyl; and q, R4, Y, R5, R6, E and G are various groups and the symbol ----- is a single or double bond with various provisos; and the corresponding lactones of compounds wherein R is COOH and one of R1 and R2 is hydroxy; and the usual salts and isomers thereof. These compounds are substitutes for natural prostaglandins with various advantages thereover in terms of slower metabolization and more selective therapeutic action. They are prepared by introducing the chain containing R, D, R1, R2, and R3 in place of a hydroxy group initially occupying the chain attachment point. A process is disclosed for preparing compounds (I) where one of R1 and R2 is a radical Z and the other is hydrogen deuterium or tritium by reducing the corresponding compound where R1 and/or R2 is other than Z. <IMAGE>
Patent GB-2029430-A (GB)
Title: Thermoplastic Compositions and Products Made Therefrom
IPC: C08K13/04
Filed: 1979-02-23
Abstract: The invention provides a thermoplastic moulding composition consisting essentially of 15%-26% of a homopolymer polyamide, 35%- 65% of a copolymer polyamide, 9%- 18% of polyurethane, 2%-12% of chopped glass fibres, 0.5%-1.5% of metallic heat stabilizer, 0.25%- 1.25% methylene chloride, 1%-2% ultra-violet screen material, and 0.25%-1.25% isocyanate, It includes moulded articles made from the composition, and is particularly concerned with such articles for use in the engine compartments of motor vehicles.
Patent GB-2018565-A (GB)
Title: Novel tobacco product and improved process for the expansion of tobacco
IPC: A24B3/18
Filed: 1979-03-15
Abstract: A novel tobacco product comprising tobacco containing gaseous carbon dioxide in an amount of at least 1 part of gaseous carbon dioxide per 100 parts of tobacco. The product, when rapidly heated is converted to expanded tobacco. An improved process for the expansion of tobacco is also provided which employs carbon dioxide as the expansion agent in a sequence of steps comprising: (1) contacting tobacco with carbon dioxide gas at a pressure of at least 250 psig for a time sufficient to impregnate the tobacco with the carbon dioxide gas to form a gaseous carbon dioxide- tobacco system, (2) releasing the pressure and (3) thereafter subjecting the carbon dioxide-treated tobacco to rapid heating conditions to remove the carbon dioxide and thereby expand the tobacco. The improvement in the above-described process comprising cooling the gaseous carbon dioxide and tobacco system in step (1) to a temperature close to the saturation temperature of carbon dioxide but not lower than -23 DEG C.
Patent GB-2045463-A (GB)
Title: Arrangement for controlling an operation performed on a workpiece
IPC: G05B19/418
Filed: 1979-04-03
Abstract: The arrangement enables an operation carried out at a work station, on a workpiece 2 which is conveyed past the work station 3, to be completed despite unexpected stoppage of conveyor means 1 carrying the workpiece past the work station. The arrangement comprises apparatus (4) for performing said operation on said workpiece and includes drive means (6) which are operable in response to the slowing down or stopping of the conveyor means (1) to drive said apparatus (4) in the opposite direction to the direction of travel of said workpiece (2), and control means which control said drive means so as substantially to maintain a desired relative speed between said workpiece (2) and said apparatus (4) until the operation to be performed on that workpiece is completed. <IMAGE>
Patent GB-2019730-A (GB)
Title: Improvements in the manufacture of cementitous products
IPC: B28C5/40
Filed: 1979-04-27
Abstract: When making glass-fibre reinforced cement products, the extent of the final mixing stage in which the glass-fibre is added to the sand-cement-water mix is restricted so that whilst the glass-fibre is dispersed throughout, and wetted by, the said mix, the final slurry retains a moderately free-flowing characteristic. The glass fibre is added to the said mix in one operation rather than dribbled in as previously recommended by the glass-fibre manufacturers; and it may be important that the mixer is stopped so that the initial mixing-in of the glass fibre is even more gentle. The materials are fed to a horizontal mixer 12 which is then pressurised and the mixing is effected by a horizontally disposed rotary stirrer 15 which has blades in the form of plough shares 19. The resulting mixture is fed to moulds. <IMAGE>
Patent GB-2020746-A (GB)
Title: A jack
IPC: F15B15/14
Filed: 1979-05-08
Abstract: The cylinder body 1 of a piston and cylinder jack is made by extrusion. It includes a piston-receiving bore 10 and on its periphery a plurality of longitudinally extending ducts 3, 4, at least some of which have outwardly directed longitudinal slots 5. The slots 5 may be closed by longitudinally extending seals 6. The ducts can serve numerous purposes, e.g.:  be tapped to receive end plate fixing screws 23; provide passages for fluid transfer from one end of the duct to another, such passages optionally having pressure take off points 60 for connection to jack operating or control components or for connection to jack accessories; provide mechanical support for jack operating components or accessories; and  provide means for mechanical connection of the jack to a support. <IMAGE>
Patent GB-2049106-A (GB)
Title: A Tap
IPC: B67D1/14
Filed: 1979-05-22
Abstract: A tap for dispensing carbonated liquids comprises a removable spout 14 into the upstream end of which part of a valve closure member 24 extends to define an annular channel. Downstream of the annular channel the spout cross-section is reduced. As the tap is progressively opened the valve member 24 is moved relative to the spout 14 to reduce the length of the annular channel. The dimensions of the channel can be altered by changing the spout to one of different dimensions in the upstream part. <IMAGE>
Patent GB-2029297-A (GB)
Title: Production of foundry moulds or cores
IPC: B22C1/22
Filed: 1979-08-20
Abstract: A process for the production of foundry moulds or cores is described in which a sand composition containing an acid-hardenable synthetic resin or resin precursor is hardened by a hydrogen halide produced in situ by reaction between a silicon halide and water and/or an aliphatic alcohol. The silicon halide may be injected into the shaped composition as a gas or as an aerosol and the water and/or aliphatic alcohol may be mixed with the sand composition before shaping or injected after shaping. The composition may also contain an alkali metal silicate which is also hardened by the hydrogen halide.
Patent GB-2031086-A (GB)
Title: Brake boosters
IPC: B60T13/567
Filed: 1979-09-03
Abstract: The invention aims to reduce booster weight by facilitating the use of a lightweight housing, preferably of moulded plastics. The invention provides a tube (10) which extends through the movable wall (8) to transmit forces from the front wall (1) to the rear wall (2) of the housing. The tube is co-axial with the input (30) and output (28) members. Slots (16) are provided in the tube (10), and arms (35) extend radially through the slots for transmitting boost forces from the movable wall to a thrust assembly (27) located within the tube and acting on the output member. A conventional poppet valve assembly is provided in one construction to control the differential pressure applied to the movable wall, but in another construction a reduced number of seals is facilitated by employing a helical cam (58, 70) to operate a valve assembly (Fig. 2) housed in a transverse bore (72, 73, 74) in the rear housing shell (2). <IMAGE>
Patent GB-2036287-A (GB)
Title: A heat exchanger
IPC: F28F27/02
Filed: 1979-10-18
Abstract: A tube bundle heat exchanger comprises an exit chamber for medium flowing through exchanger tubes (2), apertured wall means (13) to divide the exit chamber into an outflow space (10) and a mixer space (11), an at least partially thermally insulated tube (3) provided with a prolongation (4) having a larger diameter than that of the insulated tube (3) and leading to the outflow space (10), a hollow cylindrical member (20) displaceable axially thereof within the prolongation (4) and having a diameter at least equal to that of the aperture (14), an axially displaceable rod (17) connected to the cylindrical member (20), a cover (18) so carried by the rod that the cover (18) bounds a gap (21) with the hollow cylindrical member (20), and further gaps (23, 22) each being present in an axially intermediate position of the cylindrical member (20). At one axial end position of the rod (17) the cover (18) seals the insulated tube (3), and at the other axial end position of the rod (20) the cylindrical member (20) seals the aperture (14) between the outflow space (10) and the mixer space (11). <IMAGE>
Patent GB-2033566-A (GB)
Title: A cooling pack and a process for its production
IPC: C09K5/00
Filed: 1979-10-25
Abstract: A cooling pack the operation of which is based on an endothermic chemical reaction and a process for its production. The pack comprises two hermetically sealed compartments one of which contains a substance (5) which is endothermically soluble in water such as ammonium nitrate and the second of which contains a substance (9) which is endothermically soluble in water such as decahydrated soda crystals and a saturated aqueous solution thereof (10). On breaking the hermetic seal (6) between the two compartments the contents thereof are mixed and react endothermically to produce a cooling effect. <IMAGE>
Patent GB-2037724-A (GB)
Title: Process for producing carbon fibers
IPC: D01F9/15
Filed: 1979-11-08
Abstract: A solid solvent-refined coal, obtained by removing insoluble residues, by solvent extraction in one or more steps, under hydrogen pressure, is subjected to melt spinning to form fibers which are then successively rendered non-fusible by heating in air and carbonized in an inert atmosphere.
Patent GB-2067409-A (GB)
Title: Improved system for toilet bowl cleaning
IPC: E03D9/02
Filed: 1980-01-15
Abstract: A toilet bowl cleaning means wherein a container 56 is located within a water tank associated with the bowl with a cleaning compound 66 such as calcium hypochlorite included within the container. A plurality of openings 72 are provided, and this provides exposure to water in the tank so that the compound will be dissolved in the water and thereby delivered to the bowl when the toilet is flushed. The openings alternatively may be formed in a centrally located cylinder with the compound located within the cylinder and with a water space between the cylinder and the outer container walls. Controlled amounts of compound are thereby released to the water in this area. <IMAGE>
Patent GB-2040973-A (GB)
Title: Polyester-polyarylene Ester Compositions
IPC: C08L67/02
Filed: 1980-01-18
Abstract: Thermoplastic molding compositions are disclosed which comprise poly(1,4-butylene terephthalate), and a polyarylene ester resin, alone, or combined with a poly(ethylene terephthalate) alone, or in further combination with reinforcing agent.
Patent GB-2068534-A (GB)
Title: Device for continuous analysis of a stream of material
IPC: G01N23/12
Filed: 1980-02-05
Abstract: A radioactive radiation source 20 and a radioactive detector 22 are associated, as a unit 16, with equipment for conveying coal or other material 24 in a continuous stream. One part of the conveying path or the whole path lies in the irradiation zone of the source 20, and the detector 22 receives the radiation reflected by the material 24. The radiation source 20 and the detector 22 are carried by impacting means 14 situated on the conveying path in such a way as to deflect the material from a portion of the conveying means travelling in a first direction, on to another portion travelling in a second direction intersecting the first direction. <IMAGE>
Patent GB-2046540-A (GB)
Title: Electrical heating circuits
IPC: H02H5/04
Filed: 1980-02-18
Abstract: A heating circuit, for example an electrical blanket or hair dryer, comprises a heating element 2, a burst firing assembly 7 which causes an alternating current to flow through the element in a series of short bursts, and a conductor 3 separated from the element 2 by temperature-dependent insulating material so that in the event of overheating the burst firing assembly 7 is short-circuited to cause an overcurrent protective device 4 to respond. In one arrangement (Fig. 5, not shown) providing automatic temperature regulation, the burst firing assembly comprises an astable multivibrator (55) whose mark/space ratio is controlled by a thermistor (68) and which controls the triggering of a triac (78) via a zero-crossings switching circuit (56). In another arrangement (Fig. 6) providing selectable heat settings, a shift register 107 provides three outputs of differing mark/space ratio any output being selectable to control the triac 108. <IMAGE>