baber/WOPTO huggingface dataset:
Patent GB-886863-A (GB)
Title: Improvements in and relating to data storage devices
IPC: H01J17/49
Filed: 1959-11-27
Abstract: 886,863. Digital data storage. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 27, 1959 [Nov. 28, 1958], No. 40341/59. Class 106 (1). A storage matrix of gas-filled cells 17 has starter electrodes 19, 21 and sense electrodes 18, 20, each electrode being a conductor common to a row or column of the matrix and passing through the cell, together with a sustaining anode 16 common to all or groups of cells. A potential difference lower than that necessary to cause the cells to conduct is generated between anode 16 and the sense electrodes 20 and the selected cell is fired by applying a pulse to the appropriate row and column starter electrodes. Read-out does not extinguish the conductive cells and is done by testing the impedance between the sense electrodes. Clearing the store is effected by cutting off the voltage to anode 16. The matrix is constructed of laminated glass or plastic, the middle layers having accurately matched etched holes and the whole being sealed by heating in a low pressure inert gas.
Patent GB-1109248-A (GB)
Title: Improvements relating to the manufacture of metallic section members
IPC: C23C22/05
Filed: 1966-09-09
Abstract: The surface of an extruded aluminium or aluminium alloy article is protected by providing on the surface immediately following the extrusion and prior to any other treatment or after the cleaning thereof, a continuous layer of a silicone fluid of general formula <FORM:1109248/B1-B2/1> wherein each radical R may be the same or different and represents a straight or branchedchain alkyl or fluoro alkyl radical, or an aryl radical, with the proviso that all the radicals R are not methyl radicals.  The silicone fluid layer may be a thin layer consisting of a small number of molecular layers.  The article may be made of an Al-Mg-Si alloy and the silicone fluid has a kinematic viscosity of the order of 350 centistokes at ambient temperature.  The fluid may be deposited at a temperature not greater than that at which the largest admissible evaporation loss of the fluid occurs.  The fluid may be applied at ambient temperature and thereafter the silicone fluid-covered article subjected to a tempering treatment.  The radicals R may be methyl and phenyl radicals and the silicone fluid may be a polysiloxane based on methylphenyl silicone, phenyl silicone, fluoroalkyl silicone, or a branched-chain alkyl-siloxane.  An inhibitor e.g. phenyl alphanaphthylamine may be introduced into the layer of silicone fluid.  The protective layer may be removed from the article and the exposed surface anodised.  The fluid may be applied by brushes, clothes, or spraying.
Patent GB-1116391-A (GB)
Title: Moldable synthetic resin compositions
Inventor: LAUTENSCHLAGER WALTER
IPC: C08F279/02
Filed: 1965-09-23
Abstract: Polymerizable, mouldable compositions comprise (1) 2-80 parts by weight of a butadiene polymer containing polymerizable ethylenically unsaturated groups and (2) 100 parts by weight of a liquid organic monomer containing polymerizable ethylenically unsaturated groups, at least 75% by weight of component (2) being the acrylic acid ester of tricyclo - [5,2,1,02,6]-decene - (3) - ol - (9).  Component (1) may be butadiene homopolymer, particularly the 1,4-polymer; or a copolymer of butadiene with, for example, styrene, a -methyl-styrene, N-vinyl-pyridine and/or acrylonitrile, particularly a copolymer in which the butadiene units are 1,2-linked. Additional monomers which may be included in component (2) can be, for example, those mentioned above in the butadiene copolymers. The compositions may include a polymerization inhibitor, e.g. t-butylhydroquinone or t-butylpyrocatechol; a filler or reinforcing agent, e.g. a glass fibre mat; a pigment; a flame retardant, e.g. a chloroparaffin and tri-(b -chloroethyl) phosphate (stabilized with an epoxidized monoester of glycerol and versatic acid).  The compositions are moulded and polymerized in the presence of an initiator such as cyclohexanone peroxide or benzoyl peroxide in combination with a metal salt, e.g. cobalt naphthenate or amine, e.g. dimethylaniline, accelerator.ALSO:The acrylic acid ester of tricyclo-[5,2,1,02,6]-decene -(3)-ol-(9) is prepared by reacting excess acrylic acid with dicyclopentadiene in the presence of BF3 and hydroquinone, firstly at 40 DEG C. and subsequently at 65 DEG C. After removal of the excess acid, washing and extracting, the ester product is distilled in vacuo in the presence of phenothiazine.
Patent GB-1468296-A (GB)
Title: Photographic dye developer diffusion transfer silver halide material
IPC: G03C8/10
Filed: 1974-09-18
Abstract: 1468296 Yellow dye developers which are azo dyes containing hydroquinone residues FUJI PHOTO FILM CO Ltd 18 Sept 1974 [18 Sept 1973] 40756/74 Heading C4P [Also in Division G2] 2 - [p - (# - Hydroquinonylethyl)phenyl]hydrazono-3-oxo-1-thiaindane is prepared by diazotizing 4 - (2,5 - diacetoxyphenylethyl)aniline hydrochloride, and adding dropwise thioindoxyl-2-carboxylic acid in ethanol followed by alkaline hydrolysis of the diacetoxy derivative of the desired dye. 3-[p-(#-Hydroquinonylethyl)phenyl]hydrazono- 2,4 - dioxo - 1,2,3,4- tetrahydroquinoline is prepared similarly. 2-[p- (# - Hydroquinonylethyl)phenyl]hydrazono- 1,3- dioxoindane is prepared by diazotizing 4-(2,5- dihydroxyphenethyl) aniline in the presence of 2-ethyl-1-hexanol as a defoaming agent, adding an aqueous solution containing indane-1,3- dione, ethanol and NaOH to give 4-(2-quinonylethyl) - phenylazo - 1,3 - indanedione, dissolving this dye in 1,2-dichloroethane and adding N,N- diethylhydroxylamine to give the desired dye. 3 - [p - (# - Hydroquinonylethyl)phenyl]hydrazono - 6 - methyl - 2,4 - dioxochroman is prepared similarly.
Patent GB-949819-A (GB)
Title: Cutting tools
IPC: C25F3/06
Filed: 1962-10-29
Abstract: A filing-tool blade is made by punching openings 18 in a sheet metal workpiece 10 to provide a cutting edge 16 at one side of each opening, and sharpening the cutting edges by electrolytic machining. The openings 18 are punched in the soft steel strip 10 by two sets of punches and dies, Fig. 4 (not shown), which also form the upper concave surfaces of the cutting edges.  The strip is then severed in blade lengths, attachment hooks 14, Fig. 1 (not shown) are welded to the end of each blade and the latter is hardened by a carbo-nitriding process which comprises heating to 1450 DEG F. in an atmosphere of hydrogen, nitrogen, carbon monoxide, propane and ammonia and then quenched in oil.  Burrs 16 are removed from the cutting edges by wire brushing, Fig. 5 (not shown), and the blades are then connected as anodes in an electrolytic machining process using a lead cathode. The electrolyte consists of hydrochloric or sulphuric acid with a salt selected from the group consisting of the following chlorides: sodium, potassium, ammonium, nickel, calcium, ferric; and the following sulphates: nickel, copper, magnesium, ammonium, manganese, sodium, potassium, ferric. Subsequently the blades are rinsed and may be given a phosphate coating.  Many specific examples are given of the electrolytic process.
Patent GB-1529749-A (GB)
Title: Hydraulic braking systems
IPC: B60T13/22
Filed: 1977-09-09
Abstract: 1529749 Brake actuators CLAYTON DEWANDRE CO Ltd 9 Sept 1977 [1 Oct 1976] 40810/76 Heading F1D In an auxiliary brake actuator, in which a piston 11 is normally held in the inoperative position against the action of a spring 17 by hydraulic pressure in a cylinder 5, the spring holder 16 has a peripheral seal 18 and low friction bearings 19 engaging casing 1 so that the piston 11 may be returned to its inoperative position after actuation by compressed air supplied to the casing via port 20 to act on the spring holder.
Patent GB-1159264-A (GB)
Title: Improvements relating to Conduit Boxes and Earthing means therefor
Inventor: HOPLEY MARK EDWARD
IPC: H01R4/64
Filed: 1966-09-13
Abstract: 1,159,264. Conduit boxes. CROWN FITTINGS (WALSALL) Ltd. 8 Sept., 1967 [13 Sept., 1966], No. 40862/66. Heading H2E. An earthing connector comprising a metal annulus 10, having an L-shaped extension formed by strip 16 and arm 17, remote from the annulus 10, is sandwiched between the rim and a cover-plate 26 of a conduit box 11. The arm 17 is provided with a screwclamp terminal 18. The annulus 10 also includes a pair of apertured lugs 12 located diametrically so that screws 15 for the coverplate pass through them and are screwed into bosses 13 of the conduit box 11. Openings 22 and 23 in the conduit box are intended for cable entry.
Patent GB-1531625-A (GB)
Title: Signal transfer circuits
IPC: H04B1/28
Filed: 1976-10-06
Abstract: 1531625 Transistor circuits SONY CORP 6 Oct 1976 [9 Oct 1975] 41561/76 Heading H3T A signal transfer circuit transfers only a desired D.C. bias 2 and an A.C. component of a composite A.C. and D.C. signal, e.g. from an f.m. discriminator output 1a, the D.C. signal being cancelled. The circuit comprises a first branch comprising signal source 1a and a resistor 13 connected in parallel with a second branch comprising a similar, oppositely poled, source 1b and two resistors 14, 15 and a capacitor 5 connected between the junction of resistors 14, 15 and a reference point, e.g. earth. The wanted output is taken from terminal T 2  and may be adjusted by making capacitor 5 variable.
Patent GB-985543-A (GB)
Title: An improved tower crane and a method for erecting and dismantling such a crane
IPC: B66C23/34
Filed: 1963-10-22
Abstract: 985,543. Self-erecting tower-cranes. SOC. NOUVELLE D'EXPLOITATION DES ETABLISSEMENTS BOILOT-PETOLAT. Oct. 22, 1963 [Oct. 23, 1962; March 13, 1963], No. 41640/63. Heading B8B. To dismantle a tower-crane having a tower comprising sections P 1 , P 2 , Fig. 1, hinged at F a cable C is disconnected from a point B and attached to a point A. The jib V is now supported by a block and tackle M 1 , T, which extends between a winch S and a cable K attached to a strut P and a point E on the sector p 2 . If the tackle M 1  is slackened off the jib will move downwards until cable C supports the weight again, Fig. 3. The tension in the cable C and the consequent thrust in a strut P causes the tower to fold about its hinge and the jib to continue to descend after a pin F has been withdrawn and as long as the cable M 1  is paid out. Fig. 7 shows the completely folded position. In a second embodiment which allows erection with a smaller tension in the cable M 1  the section p 2  is not raised until the section p 1  has reached a certain angle of inclination. The end of each strut G. is attached to the section p 2  by a pin I, Fig. 8a, which slides in a guide J. Thus, no thrust is transmitted to p 2  to raise it until section p 1  is in the position shown in Fig. 10. Whilst the raising procedes a lever Z which is rotated by the block and tackle M 1  applies a lifting force to the section p 2 . By the time the tower is vertical two semi-circular locking members N 1 , N 2  respectively on the struts G and guides J have turned and nested within each other to prevent the pins I from running back in the guides.
Patent GB-887028-A (GB)
Title: Improvements in and relating to apparatus for severing and distributing sheets from a web of paper or tobacco
IPC: B26D3/08
Filed: 1958-12-29
Abstract: 887,028. Cigar-making machines. ARENCO A.B. Dec. 29, 1958 [Jan. 22, 1958], No. 41930/58. Class 130. [Also in Group VIII] In apparatus for severing and transferring sheets, e.g. cigar bunch wrappers, from the leading end of a web B of paper or tobacco, the member 12 which transfers the severed sheets from the cutting position D to an operating table C forms a stamp coacting with a knife 20 in a die 11 to cut the sheets. The member 12, which holds the severed sheet by suction passages 14, is connected to a pivotal lever 28 and has projecting guides 24 which slide in a block 25 fixed to a rotatable shaft 27. The lever 28 is oscillated by a cam-operated rack 31 to swing the head 12 away from the cutter 11 and down to the horizontal table C, the consequent rotation of the shaft 27 serving, through a driving band and one-way coupling, to rotate the feed roll 2 to feed a fresh portion of the web B to the cutting station D. The cutter D comprises a stationary block 15, Fig. 6, carrying a cutting blade or wire 20, which is lodged in a recess 21 of a resiliently mounted block 11. When the head 12 returns and presses on the block 11, the latter is forced back so that the blade 20 passes through the web into a cooperating recess 22 in the head 12.
Patent GB-1131721-A (GB)
Title: The production of steel strip from steel particles
IPC: B22F9/06
Filed: 1965-10-08
Abstract: 1,131,721. Sintered steel strip. SCHLOEMANNA.G. Oct. 8, 1965 [Oct. 22, 1964; Jan. 19, 1965(2); March 17, 1965; April 14, 1965; April 17, 1965], No.42730/65. Heading C7D. Rolled steel section such as strip is produced from steel particles with a grain size of at least 0À2 mm by rolling the particles to full density in one pass at a peripheral roll speed of at least 0À4 metre per second and at a temperature of 600‹C. to below the melting point of the particles. The particles, formed by granulating molten steel or as shavings or iron sponge, are deoxidised by heating in partly burnt town gas or natural gas or hydrogen prior to rolling and are protected from reoxidation during rolling. The preferred rolling speed is 1-1À5 metres per second and it should be at least 2000 times the particle diameter in mms. A continuous process is shown in Fig. 1, the particles passing from hopper 2 into rotary kiln 3 where the particles are reduced and heated to the working temperature of 900‹ -1250‹ C. The heated particles flow into sealed container 6 and from hopper 6a into rolls 9a. A reducing gas such as hydrogen is introduced into container 6 at 13. Figs. 5, 6 and 7 (not shown) show the special construction of the feed hopper and the supply of a protective gas such as argon to prevent reoxidation of the particles. A by pass arrangement may be placed between the rotary kiln and the rolls so as to deflect the flow of particles from the rolls if so desired Figs. 3 and 4 (not shown).
Patent GB-1245477-A (GB)
Title: Pressure control valve system
IPC: F15B9/06
Filed: 1968-09-09
Abstract: 1,245,477. Valves. JOS. SCHEIDER & CO. OPTISCHE WERKE. 9 Sept., 1968 [8 Sept., 1967], No. 42774/68. Heading F2V. [Also in Divisions G2-G3] A spool valve member has a land 4, controlling flow from inlet to work ports and the latter have radial baffles St to reduce the closing bias on the spool due to flow to the work ports. The land can be profiled to provide a force in the opening direction.
Patent GB-430211-A (GB)
Abstract: 430,211. Cooking - stoves. AKTIEBOLAGET SEPARATOR, 8, Fleminggatan, Stockholm.-(Assignees of Magni, K. G.; Rosstorp, R÷nnige, Sweden) June 18, 1934, No. 17984. Convention date, June 16, 1933. [Class 126] A cooking-stove comprises a fire-box 1, an oven 6, a cooking plate 10 provided on its underside with surface-enlarging pegs or projections 47 and disposed above the oven, and means for conducting the combustion gases from the firebox to the upper wall of the oven when desired in such manner that most of the heat is transferred to the oven and none or only a small amount to the cooking plate. A plate 13 is arranged between the cooking plate 10 and the oven to form separate passages 20, 45 for the flow of combustion gases under the control of a damper 16. A second cooking plate 9 above the fire-box is provided on the underside with ribs 19 bent spirally from the centre. A member 11 is arranged intermediate the plate 9 and that part of the plate 13 extending below the plate 9. The combustion products pass through the passage 23, between the ribs 19, partly directly to the passage 45 and partly through an arc-shaped opening 21 in the member 11 to the lower channel 14 and the passage 45. Secondary air is supplied from the stove front through a tube, and is projected downwardly through a mouthpiece 28. The grate consists of two inclined plates 30, between which rests a grate bar 31 with projections which form air openings between the plates 30. The bar 31 can be shaken. A serpentine tube 36 for heating water extends at 35 beneath the firebox in contact with the plates 30 to which it may be soldered or welded. A hot chamber may be provided below the flue 25.
Patent GB-1310033-A (GB)
Title: Production of cyclopentane derivatives
IPC: C07C405/00
Filed: 1970-09-09
Abstract: 1310033 Cyclopentane derivatives SUMITOMO CHEMICAL CO Ltd 9 Sept 1970 [18 Nov 1969 (2) 31 Jan 1970] 43210/70 Heading C2C Compounds of the formula where R is H or C 1-6  alkyl, X is a protected or unprotected carboxy group, Y and Z are protected or unprotected hydroxy groups, and n is 5-7 are prepared by contacting compounds of the formula with stannous chloride and hydrogen chloride, or with lithium or sodium aluminium hydride or a metal aluminium hydride in which 1-3 H atoms are replaced with C 1-4  alkoxy groups, and hydrolysing the resultant aldimine to give compounds of the formula which are reacted with a Wittig's reagent of the formula where R<SP>11</SP> is alkyl or aryl, or with a modified Wittig's reagent of the formula where R<SP>111</SP> is aryl or alkoxy, to give compounds of the formula which are reduced to give compounds of Formula IX.
Patent GB-1184563-A (GB)
Title: Wall Coverings.
Inventor: KEARLEY WALTER
IPC: C09J7/21
Filed: 1966-09-28
Abstract: 1,184,563. Coated wall coverings. WALL PAPER MFS. Ltd. 22 Sept., 1967 [28 Sept., 1966], No. 43245/66. Heading B2E. A wall covering comprises a non-fibrous sheet, e.g. paper, having on the side for application to the wall a resinous or wax shear coating and a water-activatable adhesive on the shear coating, which shear coating is of tensile and shear strength such that. after the paper has been applied to the wall, it is dry-strippable therefrom. A protective layer, e.g. of polyvinyl chloride or a vinyl acetate copolymer, may be applied to the wear surface which may be embossed or carry a decorative layer. The shear coating may comprise polyvinylchloride, polyvinyl acetate, or polystyrene or copolymers of these monomers, or a polyacrylate, waxes and blends of resins and waxes and may contain fillers such as china clay, whiting or talc. Soluble starch and cellulose derivatives may be added. The adhesive coating may be applied as a powder to the still moist shear coating and may comprise cellulose derivatives, starches or other specified natural and synthetic materials. The adhesive may also be applied as an aqueous solution to the dried shear coat.
Patent GB-1159266-A (GB)
Title: Preparation of Carboxylic Acid Chlorides
Inventor: CARR JOHN ERIC
IPC: C07C51/60
Filed: 1966-09-29
Abstract: 1,159,266. Preparation of acyl chlorides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 22 Sept., 1967 [29 Sept., 1966], No. 43625/66. Heading C2C. A process for the manufacture of a carboxylic acid chloride comprises reacting a carboxylic acid with phosgene in the presence of a quaternary ammonium, quaternary phosphonium or tertiary sulphonium salt. Specified starting materials are acrylic acid, n-caproic acid, stearic acid, and benzoic acid.
Patent GB-1439129-A (GB)
Title: Detection of blemishes in surfaces
IPC: G01N21/89
Filed: 1972-09-21
Abstract: 1439129 Photo-electric detector FERRANTI Ltd 12 Sept 1973 [21 Sept 1972] 43838/72 Heading G1A A photo-electric apparatus is used for detecting blemishes in a moving strip of e.g. steel or glazed paper. The strip 11 is moved past the apparatus,  Fig. 1, as a spot of light from a laser 16 and optical system 15 scanned repetitively in a transverse direction to the strip movement by a mirror drum 18. Substantially only specularly reflected light is collected via opening 20 and diffused by an element 21 for entry into receiver housing 14. At each extreme of scanning movement the reflected light which is diverted towards the end walls 22, 23 Fig. 3 of the housing is reflected thereby towards the detector 26. Curved mirrors 24, 25 are also provided to concentrate more of the light on the detector. Alternatively plane mirrors may be used, Fig. 4 (not shown). When the detector is enclosed in a box viewing away from the strip, roof mounted plane mirrors are used, Fig. 6 (not shown). Instead of the substantially normal arrangement of Fig. 1, separated transmitter and receiver sections at large angles to the normal to the strip, may be used, Fig. 5 (not shown), in this case the receiver having an entrance slit in front of the diffuser.
Patent GB-1246645-A (GB)
Title: Method of producing polyamides
Inventor: KORSHAK VASILY VLADIMIROVICH
IPC: C08G69/02
Filed: 1968-09-16
Abstract: 1,246,645. Stabilized polyamides. BURYATSKY INSTITUT ESTESTVENNYKH NAUK. 16 Sept., 1968, No. 43924/68. Heading C3R. Hexamethylene diamine is polycondensed in a stream of inert gas at 180‹ to 260‹ C. with a dicarboxylic acid or its diphenyl ester in the presence of up to 6 mol. per cent based on total reactants of an aromatic tetramine or bis-oaminophenol or where R is -CH 2 -, -C(CH 3 ) 2 -, -O-, or a direct valency link and R<SP>1</SP>is -O-, -C(CH 3 ) 2 - or -CH.C 6 H 5 -. This amount is stated to enhance the stability of the polycarbonamide against light, heat and hydrolysis. The tetraamine or aminophenol may be added initially or after formation of the polyamide melt. Further heating in vacuo at 260‹ to 280‹ C. is stated to increase the molecular weight. In examples hexamethylene diamine is polycondensed with diphenyl adipate or sebacate in the presence of about 5 mol per cent of 3,31-diaminobenzidine; a mixture of the tetra-amines of diphenyl methane and oxide; 3,3<SP>1</SP>-diamino-4,4<SP>1</SP>-dihydroxy-diphenyl propane; or, a mixture of 3,3<SP>1</SP>- diamino - 4,4<SP>1</SP> - dihydroxy - diphenyl methane and oxide. Products having inherent viscosities between 0À58 and 1À02 (0À5% at 20‹ C.); that of Example 4 (0À51) is reduced to 0À2 on hydrolysis with HCl for one hour at 80‹ C. The polyamides are crystalline and soluble in m-cresol, tricresol, formic acid or chloral hydrate. Reference is made to Specification 811,758.