baber/WOPTO huggingface dataset:
Patent GB-1526925-A (GB)
Title: Builders trestles
IPC: E04G1/32
Filed: 1976-02-05
Abstract: 1526925 Trestles BROWNHILLS SHEET METAL & ENG CO Ltd 5 Feb 1976 [15 Nov 1974] 49436/74 Heading A4H A builders' trestle comprises a horizontal platform support 10 having legs 15 telescopically adjustably received in tubular legs 13 of an intermediate frame 11, the legs 13 being connected by cross-members 14, and foot members 12 each comprising an upright tubular socket 21 that receives the leg 13 and generally planar support means 20, 22, which are movable between two limit positions, viz, a working position perpendicular to the frame 11 and a storage position parallel or co-planar with the frame 11, the socket 21 having at its upper end an inwardly deformed lip 23 and a cut-out 24 that receives the lower cross-member 14 in the working position, and a captive nut 25 at an aperture in the socket opposed to and below the cut-out to receive a threaded key 27 to urge leg 13 into engagement with socket 21 in any position of the foot member Legs 15 are adjustably secured in legs 13 by pins 19 inserted through selected aligned holes (17, 18) and a captive nut (29) and key. Horizontal crossmembers 14 may be replaced by a pair of members of X form.
Patent GB-499427-A (GB)
Abstract: 499,427. Knitting needles. BLAIR, M. A. Nov. 25, 1937, No. 32571. [Class 74 (ii)] Two rigid metal end parts 10, 11 are connected by a chain 12 of substantially the same diameter and composed of links 13, 16 symmetrical about a transverse plane so as to permit the knitted stitches to pass smoothly along it in both directions. The chain may be interrupted at intervals by lengths of rigid rod. Specification 173,618, [Class 74 (ii)], is referred to.
Patent GB-1186160-A (GB)
Title: Improvements in or relating to Offshore Well Work.
Inventor: POSTLEWAITE WILLIAM ROGERS
IPC: E21B41/10
Filed: 1967-04-27
Abstract: 1,186,160. Anchoring cables. CHEVRON RESEARCH CO. 27 April, 1967 [2 May, 1966], No. 49995/69. Divided out of 1,183,082. Heading B8B. [Also in Division E1] A device for coupling a guide line 571 to a guide post 452 adjacent a submerged well comprises fittings 100, 592 and disconnects if the inclination of the guide line to the post becomes excessive. The inclination of the guide line causes fitting 592 to pivot on the fitting 100 which is releasably fixed to the top of the post. If the inclination is excessive a projection such as 550 or 552 on the fitting 592 depresses a latch sleeve 464 to free dogs 463 so that the fitting 100 may be removed from the post. The fitting 592 is biased to the vertical by a resilient member 530 which acts on an extension 531 of the link 502 of the interengaging links 501, 502 which permit pivoting of the fitting 592. A member 591 breaks under excessive guide line load.
Patent GB-1533308-A (GB)
Title: High resiliency polyurethane foam with breathability and reduced shrinkage by use of certain tin catalysts
IPC: C08G18/00
Filed: 1976-12-06
Abstract: 1533308 High resiliency polyurethane foams M & T CHEMICALS Inc 6 Dec 1976 [22 Dec 1975] 50671/76 Heading C3R A method for preparing a high resiliency polyurethane foam having a value for ILD 65% / ILD 25%  greater than 2À0 comprises reacting an isocyanate component having a functionality of from 2À2 to 2À8 and consisting of a mixture of a monomeric diisocyanate and a polymeric, polyfunctional isocyanate and at least one polyol selected from (1) polyols having a molecular weight greater than 3000 and an OH number of 25 to 56, and containing 5 to 30% wt., based on the weight of said polyol, of side chains derived from the polymerization of acrylonitrile or a mixture of acrylonitrile and styrene, or (2) mixture of polyols having a molecular weight between 4000 and 6000, with 0À5 to 6À0% wt. of at least one diamine as crosslinker, based on the weight of polyol, in the presence of water as a blowing agent, a blowing catalyst, a siliconebased surfactant, and, as a polymerization catalyst, 0À001 to 0À10% wt, based on the weight of said polyol, of an organo tin compound of the formula R 2 Sn(OCOR<SP>1</SP>COOR<SP>11</SP>) 2 , wherein each of R and R<SP>11</SP> is a C 1 -C 20 -alkyl radical, R 1  is selected from C 2 -C 20 - alkylene and alkenylene radicals, cycloalkylene and phenylene radicals, with the proviso that the molar ratio of NCO groups to active hydrogen atoms present in the reaction mixture is 0À90 to 1À15. The blowing catalyst may be a tertiary amine. Suitable monomeric diisocyanates are tolylene diisocyanate, alkylene 4,41-diphenylmethane diisocyanate or naphthalene diisocyanate. The polymeric polyisocyanate is typically polymethylene polyphenyl isocyanate. Suitable polyols (2) are OH- terminated polyesters, polyethers, polyamides, polymercaptans, polyamines, and polyisocyanate-modified alkylene glycols and polyesters. The blowing agent preferably contains 2-4% wt. of water and 0-10% wt. of a volatile fluorinated hydrocarbon that boils at from -40‹ to 70‹ C., the percentages being based on the weight of the polyol. In the example high resiliency polyurethane foams are prepared by the one-shot method from a formulation comprising 2,4- and 2,6- tolylene diisocyanates, polymethylene polyphenyl isocyanate; an ethylene-oxide-capped polypropylene oxide polymerized on glycerine (M.Wt. 4700, OH number 27); the above polyol containing grafted acrylonitrilestyrene copolymer; water, a siliconebased surfactant; N-ethyl-morpholine, bis(N,N- dimethylaminoethyl)ether and triethylene diamine and any one of the following polymerization catalysts: dibutyltin bis(isoocytl maleate), dibutyltin bis(isooctyl succinate) and dimethyltin bis(isooctyl maleate).
Patent GB-1062840-A (GB)
Title: New indole derivatives
IPC: C07D487/04
Filed: 1965-12-02
Abstract: Novel indole derivatives of the general formula <FORM:1062840/C2/1> wherein X is hydrogen, fluorine, chlorine' bromine or C1-C4 alkyl or alkoxy, R1 is hydrogen, C1-C4 alkyl, or benzyl, Y is hydrogen or a radical <FORM:1062840/C2/2> where Z is phenyl optionally substituted by one or more substituents defined by X, or is a pyridyl radical, and R2 is hydrogen or C1-C4 alkyl, and the acid addition salts thereof, are prepared by reacting a phenyl hydrazine with a hexahydro-4H-azepin-4-one, and immediately ring-closing the resulting phenyl hydrazone in the presence of an acid condensing agent; or by condensing a substituted phenyl hydrazine in aqueous acid medium with a ketal of a hexahydro-4H-azepine-4-one; or by reacting the compound of the above general formula wherein the 6-position is unsubstituted with a reactive ester of a compound of formula HO-CHZ-R2 in the presence of an alkaline condensing agent, or by reacting the compound of the above general formula wherein the 3-position or the 3- and 6-positions are unsubstituted with a reactive ester of the required alkanol in the presence of an acid binding agent, or with the required alkanal under reducing conditions; or by debenzylating compounds with R1 representing benzyl to form the 3-unsubstituted compounds.  2,3,4,5 - Tetrahydro - azepino - [4,5 - b]-indole is also prepared by reacting 3-methyl-2,3,4,5 - tetrahydro - 1H - azepino - [4,5 - b]-indole with chloroformic acid ethyl ester and heating the resulting 3-ethoxycarbonyl-2,3,4,5-tetrahydro - 1H - azepino - [4,5 - b] - indole with a solution of potassium hydroxide in diethylene glycol monomethyl ether.  Therapeutic compositions with antihistaminic and antitussive properties which may be administered orally, rectally or parenterally, and which contain as the active ingredient a compound of the above general formula or an acid-addition salt thereof in admixture with an inert carrier.
Patent GB-1001722-A (GB)
Title: Synthetic rubber compositions and articles therefrom
IPC: C08K3/34
Filed: 1963-12-31
Abstract: A composition comprises (a) 100 parts of a styrene-butadiene copolymer having 10 to 60% styrene, (b) 20 to 80 parts of a solid asphalt of ring and ball-softening point between 70 and 115 DEG  F. and low asphaltene content and between 40 and 140 parts of laminar particles of hydrous magnesium silicate of properties:  95-99% pure, 0.1 to 0.3% free moisture, maximum particle size of 15 microns, specific surface of 10 to 20 m.2/g., a mean refraction of 1.59 and no magnetizable iron or heavy metal salts deleterious to rubber.
Patent GB-1090459-A (GB)
Title: Improvements in or relating to a fan for blowing air
IPC: F01P5/02
Filed: 1964-12-17
Abstract: 1,090,459. Axial-flow fans. SOC. ANON. DES USINES CHAUSSON. Dec. 17, 1964 [Dec. 18, 1963], No. 51488/64. Heading F1C. A fan comprises a plate or disc 1, Fig. 1, supported by a hub (which may be integral with it) and having arms 2 to which are fixed blades 3 moulded from synthetic material (such as polypropylene or a superpolyamide), which are maintained in abutting relationship with the arms by plates 34, each plate 34 having an upturned edge 34a and being connected to an arm 2 by rivets 30 extending through the corresponding blade 3. The plates 34 may be of sheet metal or of the same material (not stated) as the plate 1 and arms 2. Each plate 34, which may be of trapezoidal form instead of being rectangular, fits into a recess in the corresponding blade 3. Alternatively, as shown in Fig. 5, a plate 38 is shaped to fit over a boss 36b formed on each blade 3. The boss may be tapered as shown (but with a parallel zone 39 to receive the rivets 30) to distribute the loading due to centrifugal force on the blade over the whole face of the plate 38. A further boss may be formed on the opposite face of the blade 3, the arm 2 being correspondingly shaped.
Patent GB-1514178-A (GB)
Title: Radial rolling bearing for two parallel shafts
IPC: B29C48/50
Filed: 1975-12-17
Abstract: 1514178 Bearings W SCHAEFFLER and G SCHAEFFLER [trading as INDUSTRIEWERK SCHAEFFLER OHG] 17 Dec 1975 [24 Jan 1975] 51572/75 Heading F2A [Also in Division B5] In a radial rolling bearing assembly for two parallel shafts, the two outer races 2, 3 have flat adjoining circumferential portions 9 and are provided with part-spherical convex outer surfaces 8 for adjustable mounting in corresponding overlapping recesses in a common housing 1; a circumferential portion of one ring 3 opposite the flat portion 9 thereof is provided with two plane or slightly curved flank surfaces 10 inclined towards each other in the radially outward direction from the end surfaces of the ring 3 and extending into the region of its convex outer surface 8, and part of the housing surrounding said portion is formed with a slot 11 leading from one end face thereof into the recess for the ring 3 to allow for insertion of the ring into the recess. Since the cross-sectional profile of the slot 11 in planes parallel to said end face corresponds to the axial cross-sectional profile of said circumferential portion of the ring 3, the ring can be inserted into the recess with its axis parallel to said planes and then turned through 90 degrees into its operational position. The two flank surfaces 10 may be inclined to each other at an angle of 90-100 degrees.
Patent GB-1075560-A (GB)
Title: A method of extending a sectionalized hoist tower, and an apparatus for practising this method
IPC: B66B9/187
Filed: 1965-12-06
Abstract: 1,075,560. Hoists with extensible towers. N. E. ANDERSSON. Dec. 6, 1965, No. 51578/65. Heading B8H. To extend the tower 10 of a builder's hoist an extra section is added to thetop without moving the return pulleys 16. The counterweight 18 is locked in its upper position as shown, and, with the cage 14 resting on the ground, the ropes 15 are disconnected from the drive wheel 17 and passed round a sheave 32 mounted on an axially slidable shaft 31. Extra rope is paid out from a storage drum 22 and the return sheaves and counterweight are moved up the tower and repositioned at the top of the new section. The sheaves 16 are mounted on a framework 23, Fig. 1 (not shown), which is clamped to the transverse tower members. A bar 35 which is passed through a link on the counterweight to lock it to the frame 24.
Patent GB-1319158-A (GB)
Title: Pattern processing systems
IPC: G06V10/34
Filed: 1970-10-30
Abstract: 1319158 Character recognition KOGYO GIJUTSUIN and TOKYO SHIBAURA DENKI KK 30 Oct 1970 [5 Nov 1969 (2)] 51703/70 Heading G4R In a character recognition system the line width of the character is detected and employed to adjust the line width of a stored character to a desired value. As described signals from a photo-electric device 1 viewing the character are passed via a quantizer 2, e.g. a threshold device, to a two-dimensional store 3, Fig. 5. The store feeds a recognition unit (not described). Each of a number of sampling circuits 4 is fed by the bit held in a respective position in the store (as indicated by the circled cross-points in Fig. 6) and also by a matrix of 21 bits surrounding that position. The bit values are weighted and added by the circuits 4, the resulting outputs being indicative of the line width of the character at the various points. The outputs of the set of circuits 4 pertinent to the positions in any one row A, B or C are passed to a respective detector 5 which provides an output equal to the maximum output of that set. This determines the maximum line width. Each detector 5 feeds a detector 6 providing an output equal to the minimum of its inputs; this prevents a branching or crossing of two or more lines from being regarded as a maximum line width. The signal from detector 6 passes to a threshold unit 7 which provides a signal having a state dependent on whether the line width lies above or below a nominal line width. The signal is fed back to either quantizer 2 or store 3 to adjust the quantizing level or the size of the character stored to bring its line width to the nominal value. If the signal is fed back to the store the state of any one cell may be altered in dependence on the state of the surrounding cells, Fig. 8 (not shown).
Patent GB-1166627-A (GB)
Title: Improvements relating to Compositions for Oral Hygiene
Inventor: WATSON CHARLES ANDREW
IPC: A61K8/81
Filed: 1965-12-07
Abstract: 1,166,627. Germicidal compositions. UNILEVER Ltd. 6 Dec., 1966 ,[7 Dec., 1965], No. 51752/65. Heading A5B. [Also in Division C3] A germicidal composition for the care of the oral cavity comprises particles of water insoluble plastics material with a size of less than 50 microns, which contain absorbed germicide. Suitable plastics materials are thermoplastic resins, e.g. polyvinyl chloride, polyethylene, polypropylene, polymethyl methacrylate and copolymers of polyvinylchloride and polyvinyl alcohol. Germicides may be hexachlorophene, chlorhexidene, tyrothricin, or quaternary ammonium compounds. The composition may be a dentifrice in the form of a liquid, paste, powder, tablets or a solid block, or may consist of a mouthwash; conventional other ingredients for such forms are preferably present. The compositions are prepared by contacting particles of plastics material with a solution of the germicide in a solvent capable of being absorbed by the plastics material, (e.g. propylene glycol, glycerine, cineole, or mixtures thereof), separating the particles from excess solution and, if required, washing with the solvent. 'The absorption is preferably performed at an elevated temperature.
Patent GB-1465913-A (GB)
Title: Clutch drive plates
IPC: F16D13/64
Filed: 1974-11-08
Abstract: 1465913 Clutch plates BRITISH LEYLAND UK Ltd 8 Nov 1974 [8 Nov 1973] 51860/73 Headings F2C and F2U A clutch plate comprises linings 11 rivetted to segments 13 which are waved as shown in Fig. 4 and mounted back to back to provide axial resilience between the linings 11. The segments 13 are bent about lines which converge towards the outer periphery of the plate to provide a spring rate decreasing radially outwardly, drive being initially transmitted through the inner marginal portions of linings 11. Each segment has a larger hole 18 and a smaller hole 17, the hole 17 of one segment being opposite hole 18 of the other of the pair and rivets 12 having two portions of different diameters interconnect the segments 13 and attach the linings 11 to them (Fig. 2). The plate is provided with cushioning springs 32 and spring loaded friction washers 33 to damp vibration.
Patent GB-1151767-A (GB)
Title: Process for the preparation of Detergent Compositions
IPC: G05D11/00
Filed: 1966-06-02
Abstract: 1,151,767. Low bulk density detergents. COLGATE-PALMOLIVE CO. 2 June, 1966 [24 June, 1965], No. 51970/68. Divided out of 1,151,766. Heading C5D. A continuous process for the production of a detergent composition of low bulk density comprises forming an aqueous slurry containing an organic detergent, adding to the slurry or forming therein an inorganic alkali metal or alkaline earth metal, alkaline or neutral detergent builder salt, mixing the slurry in the presence of the builder salt and of a normally gaseous substance under conditions that impart a high shear and under superatmospheric pressure to disperse the gaseous substance uniformly therein terminating the mixing, and reducing the pressure to atmospheric pressure. The builder salt is preferably a hydratable material or a substance capable of forming a hydratable material such as an alkali metal or alkaline earth metal phosphate, sodium carbonate, sodium silicate, magnesium sulphate or sodium tetraborate. The builder salt may be formed in situ by commingling with the slurry a caustic alkali and a substance capable of reacting with water in the presence of the caustic alkali to produce a water-soluble alkali metal polyphosphate hydrate, suitably the additive is an alkali metal trimetaphosphate. The detergent used may be anionic, for example a water-soluble soap, an alkyl aryl sulphonate, an alkyl sulphate or sulphonate, a fatty acid ethanolamide sulphate, a fatty acid amide of an aminoalkyl sulphonic acid, or a fatty acid ester of isethionic acid. The surfactant may be wholly or partially nonionic, the nonionics used include polyalkylene oxide condensates with alkyl phenols, alkanols, fatty acid amides or with polyoxypropylene glycols. Cationic or amphalytic detergents may also be included in the composition. The gaseous substance is most suitably air, but may be nitrogen, oxygen or carbon dioxide. The process may be operated so that the slurry is continuously and automatically metered to a point where the builder salt (or a substance capable of forming the same) is added in an automatically controlled and continuously metered amount; and the slurry has such a high solids content as to be difficultly flowable, i.e. the solids content is in excess of 70% in the high shear mixing step. Preferably, the slurry is mixed in the presence of the normally gaseous substance for a period of up to 30 seconds, at a pressure of 20 p.s.i.g. and with a shear factor in excess of 5; so that the gaseous substance is dispersed throughout the slurry as discrete bubbles, the majority of which have an average diameter of less than 0À054 mm.
Patent GB-1096299-A (GB)
Title: Improvements in and relating to rolling bearings
IPC: F16C33/64
Filed: 1964-12-22
Abstract: 1,096,299. Making bearing rings. TORRING- TON CO. Dec. 22, 1964 [Dec. 24, 1963], No. 51972/64. Heading B3A, [Also in Division F2] A relatively thin-sectioned outer race 16, Fig. 2, of a roller bearing has a rollers-engaging surface 23 which has been hardened, by the known carburising and quenching method for example, so as to form a layer 24, Fig. 3. The race 16 is then mounted on a mandrel and tried by having its outer surface worked thereon. Thus a work-hardened layer 26 is formed, which, along with an unaffected portion 25 of the race facilitates the retention of the shape thereof. Thus the race may be received without distortion in a thin-sectioned housing, which may be split.
Patent GB-1094958-A (GB)
Title: Contorl systems for ice makers
IPC: F25C1/10
Filed: 1965-12-09
Abstract: 1,094,958. Ice-making. GENERAL MOTORS CORPORATION. Dec. 9, 1965 [Dec. 28, 1964], No. 52277/65. Heading F4H. Ice-making apparatus comprises a multimould endless belt 20 having projections 54, a water-supply valve 48, a double-throw switch 56 arranged to be operated by projections 54 and a double-throw timed switch 64 arranged to control valve 48, the switches being interconnected in such a manner that whenever switch 56 energizes valve 48 via switch 64 the latter de-energizes the valve after a predetermined time. When switch 56 is engaged by a projection 54 it is moved to contact 57 which is connected by conductor 60 to contact 62 of switch 64, so that valve 48 and a timer motor 70 are energized through the latter switch. After a predetermined time motor 70 moves switch 64 to contact 74 to de-energize the valve and motor. Subsequently, projection 54 moves clear of switch 56 and the latter moves to contact 76 which is connected to contact 74 of switch 64 so that the motor and valve are again energized. Switch 64 is then moved to contact 62 after a predetermined time to de-energize the motor and valve and the above cycle is repeated when the next projection engages switch 56. Thus, each mould 22 of the belt is supplied with water during two timed periods.
Patent GB-1436695-A (GB)
Title: Steam engine
IPC: F02B47/06
Filed: 1973-04-05
Abstract: 1436695 Generating combustion products under pressure; engines NISSAN MOTOR CO Ltd 5 April 1973 [12 April 1972 18 April 1972 (2) 9 Sent 19721 53116/75 Divided out of 1435781 Headings FIG and F1L [Also in Division F4] Combustion gases produced by the combustion of solid, e.g. plastics, liquid or gaseous fuel, e.g. L.P.G. or H 2 , with oxygen produced by the exothermic decomposition H 2  O 2 , e.g. by a silver catalyst, in a combustion chamber have water added thereto in a chamber 88, Fig. 1, or 152, Fig. 3. The flow of water is controlled by a valve 130 or 150 and the resulting gases operate indirectly, Fig. 1, or directly, Fig. 3, a steam expansion unit 96 or 162. In Fig. 1 the unit 96 is operated by steam generated in tubes 92 in the chamber 88 and part of the exhaust gas from the chamber are recirculated thereto by a pump 128 through apertures 124 thereby providing the added water. In Fig. 3 the exhaust gases from the (226) extend through a combustion chamber extension (224). The expanders 194 and 208 may be connected through gearing or an hydraulic torque converter to drive a motor vehicle.
Patent GB-1247221-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/02
Filed: 1968-11-11
Abstract: 1,247,221. Forming grooves in glassware; sealing glass to metal. SOC. DES VERRERIES INDUSTRIELLES REUNIES DU LOING. 11 Nov., 1968 [9 Nov., 1967], No. 53349/68. Heading ClM. [Also in Division H1] A series of parallel equidistant grooves 1<SP>111</SP>b are formed in at least part of the thickness of opposite parts of the rim of at least one of the mating screen and cone portions 1, 2 of a C.R T. glass bulb by forming a mask of wax or lightsensitive material of the desired pattern on the rim and etching the glass with an acid mixture comprising per 10 litres of etching bath 1À94 litres of 95% H 2 SO 4 , 7À00 litres of HF and 1À06 litres of water. Alternatively a train of diamond tipped saws may be used to form the grooves. In the sealing of screen 1 and core 2, a grid 4 of parallel wires is secured by sealing glass 3 in the grooves, the grid being stretched taut in a frame. The wires are then cut off, interconnected by conductive material and covered by glassceramic to protect the seal.