baber/WOPTO huggingface dataset:
Patent GB-552100-A (GB)
Title: An improved bolt
IPC: F16B13/08
Filed: 1942-01-30
Abstract: 552,100. Bolts. BRUCE, D. R. Jan. 30, 1942, No. 1288. [Classes 44 and 89 (i)] [Also in Group XXXIII] A bolt for replacing damaged or displaced rivets in ships' hulls &c. and use in erection and rigging work in shipbuilding, engineering and like trades, comprises a screwed shank 3 slotted at 4 to receive a bar 5, of width equal to, or less than, the bolt diameter and pivoted at 6 in the shank so that after insertion in the hole 7 it may be turned to open the hole. When thebolt is to be used below the water line a rubber- or other resilient washer 10 is placed between the nut 9 and the plates.
Patent GB-1404599-A (GB)
Title: Optical scanning apparatus
IPC: G01N21/59
Filed: 1973-01-10
Abstract: 1404599 Optical apparatus INTERNATIONAL BUSINESS MACHINES CORP 10 Jan 1973 [4 Feb 1972] 1317/73 Heading G2J Optical apparatus comprises a hand probe for scanning a document 142 which is connected by a coherent optical fibre bundle 140 to a housing 154 containing a light source, a photo-sensitive device 180, and a mirror 170 which reflects light from the source into the fibre bundle 140 but which allows light reflected from the document 142 to reach the photo-sensitive device 180. The photo-sensitive device may be of the sectored type described in Specification 1404598 for use with a data processing system. As shown a quartz-iodine lamp is disposed at one focus of an elliptical reflector 162. The mirror 170 is dichroic and is disposed at an angle of 45 degrees to the axis of the reflector 162, and is apertured. A heat sink 190 is disposed at the other focus of the elliptical reflector 162. A black heat and flare shield 194 protects the housing end of the fibre bundle 140. The optical fibres are enclosed in a flexible vinyl sheath 148 filled with an aqueous lubricating and insulating solution; flexible armour 150 prevents undue bending of the bundle 140. The ends of the bundle 140 have anti-reflector cratings. It is made of material graded a small numerical aperture glass type to make the system less sensitive to tilting of the hand probe. The nosepiece 146 of the hand probe is made of a graphite impregnated nylon. An alternative hand probe, Fig. 3, comprises a tubular focusing reflector 230 with an imaging lens 240 at its centre, so arranged that no incoming light strikes the lens 240.
Patent GB-346673-A (GB)
Title: Method of manufacturing rubber articles
IPC: C08J5/02
Filed: 1930-01-14
Abstract: Uncoagulated latex is removed from coagulated rubber coatings &c. by washing with an alkaline solution free from coagulating ions; a protective colloid may also be present.  Suitable solutions are ammoniacal solutions of gelatine, casein, gum arabic, agar agar, and soaps.
Patent GB-892684-A (GB)
Title: Improvements in or relating to sawtooth wave generating circuit arrangements
IPC: H04N3/20
Filed: 1959-01-14
Abstract: 892,684. Automatic voltage-control systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. Jan. 14, 1959 [Jan. 14, 1958 (2)], No. 1383/59. Class 38 (4). [Also in Group XL (c)] A valve circuit for generating a saw-tooth current in a coil and for generating a high voltage from flyback pulses produced when the valve is cut-off has a stabilizing circuit which derives from the flyback pulses a stabilizing voltage which is applied to the grid and means which prevents excessive rise in the H.T. voltage generated when the stabilizing circuit fails. Fig. 1 shows a saw-tooth current generator comprising a driver valve connected through an output transformer 6 to deflection coils 9 and an E.H.T. rectifier 7, and provided with a circuit 5 which applies to the control grid of the driver valve a D.C. potential dependent on the amplitude of the flyback pulses 10 and arranged to maintain the saw-tooth current generated substantially constant. The pulses 10 are also fed to a valve 34 normally biased at its cathode to cut-off. If the stabilizing circuit 5 fails the amplitude of the flyback pulses 10 rises, causing valve 14 to conduct. This causes valve 1, which is normally non-conductive during the flyback, to conduct and so renders the valve 4 momentarily conducting thus damping the flyback oscillation in the output transformer 6. Valve 14 may be omitted and the pulses fed directly to the grid of valve 4 through a differentiating circuit (Fig. 2, not shown). The components of the differentiating circuit may be made variable so that the duration and amplitude of the pulse fed back may be adjusted. In a further alternative (Fig. 4, not shown), the pulses are obtained from the screen grid instead of from the output transformer. In Fig. 6 pulses are derived from an auxiliary winding 41 and rectified in diode 39 to provide a negative voltage across a smoothing capacity 40. This negative voltage is less than the negative voltage applied by the stabilizing circuit 5 to the control grid and accordingly a diode 46 is non-conducting. Should the stabilizing circuit fail the control grid of valve 4 will become less negative while the pulse output will become larger and the voltage on the cathode of the diode 46 more negative so that the diode conducts and causes the flyback to be damped. A bridge circuit 35, 36, 37 and 45 of which the two arms 36 and 45 are non-linear resistors cause the voltage applied to the cathode of diode 46 to become rapidly negative when the output from rectifier 39 exceeds the normal value. The bridge may, however, be omitted and the output of the rectifier fed directly through a potentiometer to the cathode of diode 46 (Fig. 7, not shown). It is suggested that a negative voltage could be supplied also to the Wehnelt electrode of the cathode-ray tube so that when the stabilizing circuit fails the negative voltage increases, causing the cathode-ray tube current to increase and so damp the transformer circuit 6.
Patent GB-122642-A (GB)
Title: Improvements in or relating to Supporting Insulators for Electric High-tension Conductors.
Inventor: SCHWANK ERNST
IPC: H01B17/14
Filed: 1919-01-20
Abstract: 122,642. Schwank, E. Jan. 21, 1918, [Convention date]. Insulators. - In an insulator for high-tension conductors, &c., of the kind comprising a bedplate g connected to a holder or support h by a number of separate insulating bodies f arranged so as to incline towards the main axis of the supporting insulator, the bodies f are made in the form of ventilated tubes, the bed-plate is secured to the foundation by a single bolt i arranged concentrically to the main axis so that any desired shifting of the support about the axis may be obtained and the connecting lugs of the bodies f are formed with longitudinal slots n and curved slots m to allow for angular and longitudinal adjustment. Fig. 7 shows the plan of a construction in which the axes of the bodies f do not converge to a common point on the main axis.
Patent GB-447624-A (GB)
Title: Improvements in and relating to burners for liquid fuel
IPC: F23D11/10
Filed: 1935-01-16
Abstract: 447,624. Liquid - fuel burners. WYNDHAM, S. L., and WYNDHAMS LIQUID COAL CO., Ltd., The Exchange, Cardiff. Jan. 16, 1935, No. 1498. [Class 75 (i)] A burner for liquid or colloidal fuel comprises a fuel supply tube 20 fitted with a nozzle 24 formed with a tapered passage through which the fuel is discharged in an annular film past the pear-shaped end of a needle valve 26, a primary air supply tube 16 surrounding the tube 20 fitted with an apertured plate 34 through which the air issues with a swirling movement after passage through inclined ports 37 surrounding the nozzle 24, and a chamber 10 having regulable ports 13 through which secondary air is supplied to the flame. The needle valve 26 is carried by an adjustable cap 28 threaded on a member 29 mounted in the tube 16. The needle valve may be withdrawn to allow the passage of material choking the fuel orifice by means of a knob 32, a spring 31 returning the valve to its adjusted position when the knob is released. The chamber 10 may be formed merely with a diverging outlet or as shown as a double conical member with an internal baffle 15 which causes the secondary air to become heated by travelling first forwardly and then rearwardly before meeting the flame. The burner is secured to the fuel pipe 21 by a clamp 22. The forward end 23 of the tube 16 may be of increased or diminished thickness. A suitable colloidal fuel is described in Specification 410,883, [Group III].
Patent GB-572137-A (GB)
Title: The production of rubber-like polymers
IPC: C08F236/16
Filed: 1943-01-28
Abstract: A conjugated diene monomer is copolymerised with a non-aromatic ester of a mono- or dihalogenated ethylene : a  : b -dicarboxylic acid.  In an example, 1 : 3-butadiene is heated in a rotating autoclave with an emulsion comprising diethylchlormaleate, sodium laurylsulphate, a citric acid-phosphate buffer, sodium cyanide, acetaldehyde, sodium perborate and sulphuric acid. Phenylnaphthylamine is added to the resulting latex which is coagulated by addition of alcohol and the resulting rubber compounded with zinc oxide, sulphur, carbon black, stearic acid and benzothiazyl diethylsulphonamide.  The esters may be prepared by removing hydrogenhalide by distillation or treatment with a mildly basic substance, e.g. sodium bicarbonate of di- or tri-halosuccinic esters.  The latter may be made by halogenation of fumaric or maleic esters.  Alcohols mentioned for esterification of the halogen (chlor- and brom-) fumaric and maleic acids are: methyl, propyl, butyl, amyl, cyclohexyl, benzyl, lauryl, furfuryl, tetrahydrofurfuryl, 2-ethylhexyl, 3 : 5-dimethylcyclohexyl, cyclopentyl, cyclohexylcarbinyl, bornyl, 2-chlorcyclohexylchlorethyl, chlorpropyl, chloramyl, fenchyl, ac-H4-betanaphthyl, crotonyl, 1-chlorallyl and dichlorisopropyl, alcohols.  Glycols may also be used as well as hydroxy compounds containing the radicles C2H4OR, CH2COOR, C2H4COOR, CH(CH3)COOR,CH2COR, C2H4 COCH3 and CH(R)CH2COOR, where R is methyl, ethyl, butyl or benzyl. Mixed esters, e.g. ethylisobutylchlormaleate, may be used.  Dienes mentioned are: isoprene, 2 : 3-dimethylbutadiene-1 : 3, 2-chlorbutadiene-1 : 3, 2-cyanobutadiene-1 : 3 and 2-cyano-3-methylbutadiene-1 : 3.
Patent GB-103839-A (GB)
Title: Improvements in or relating to the Manufacture of Heat Insulating Chambers, Walls, Floors and Ceilings.
Inventor: DAVIES JOHN
IPC: E04B1/76
Filed: 1916-02-01
Abstract: 103,839. Davies, J., and Jones, W. H. Feb. 1, 1916. Non-conducting coverings for heat and sound; fire-proof coverings.-A heat-insulating and soundproof covering for walls, ceilings, floors, &c. is formed of blocks A of compressed cork or cork substitute each faced with a fire-resisting layer B in the form of an oxychloride or Portland cement applied in a plastic state to the block and matured before the block is used. The blocks are secured by cement or bitumen to a foundation comprising one or more layers formed of lengths D of compressed cork &c., the blocks being arranged to break joint with the lengths D. The blocks A are joined together by a cement grouting. The cement for the facing B and the grouting is preferably a mixture of calcined magnesite, chloride of magnesium in solution, and sawdust, hair, or other fibrous material. Compressed cork blocks of various shapes, and similarly faced with an oxychloride or Portland cement, are provided for covering projecting joists or posts and the angular junctions of the insulation. Figs. 3 and 4 show means for securing the insulation to the ceiling of a cold-storage chamber. Galvanized iron beadings L disposed at right-angles to the joists G are supported by nuts M on hangers J, which are bolted to the joists and support the brine pipes I. The cement layer B adjacent to each joist is cut away, and the spaces so formed are filled by transverse pieces of cork N faced with an oxychloride or Portland cement O. The cement O may be cut away to allow the beading L to overlap adjacent ends of the cork pieces N, cement being afterwards filled into the cavities.
Patent GB-1326715-A (GB)
Title: Tunnel furnace for the heat treatment of articles
IPC: C21D9/63
Filed: 1971-01-12
Abstract: 1326715 Tunnel kilns COMPAGNIE GENERALE D'ELECTRO-CERAMIQUE 12 Jan 1971 [14 Jan 1970] 1543/71 Heading F4B In a tunnel kiln for firing ceramic articles, which are supported on a cushion of gas issuing from one or more perforated or porous ceramic hearths 1a, 1b, a mixing chamber 4a, 4b is provided below the or each horizontal or slightly sloping hearth, into which chambers fuel gas from nozzles 5a, 5b, and a forced air supply from nozzles 17 are passed to form the supporting cushion of combustion gases. The mixing chambers may be divided into compartments. The flat or slightly curved hearths may be supported through columns 2 on a support structure, either as shown in the form of assembled blocks 11, or a monolithic structure (Fig. 1, not shown), or the hearth may be combined with the support structure in the form of a hollow box beam (Fig. 3, not shown), assembled beams making up the hearth length. The pressure of the gas supplies through the nozzles 5a, 5b to the mixing chambers 4a, 4b may be periodically oscillated so that an even gas flow over the whole chamber over a given time period is obtained. In an alternative embodiment (Fig. 2, not shown) the fuel gas and air inlet nozzles to the mixing chamber are coaxially arranged and may be aligned with the hearth perforations to minimize gas spread in the mixing chamber. The gas discharge perforations in the hearths may be of divergent or divergent-convergent form. Gases from above the hearths may be withdrawn through the duct between the walls 15a, 156, the injector action of the air jets from nozzles 17 recycling these gases from well 18 up through Venturi passages 12 in the blocks 11 into the mixing chamber 4a, 4b. In modifications (not shown) the supporting gases may be formed by combustion of liquid fuel, or gas to form a cushion may be heated by electrical resistors or inductors. Supplementary burners 10, or electrical resistors or inductors are provided. Flat articles are supported directly by the gas cushion, other articles by an intermediate support plate carried on the gas curtain.
Patent GB-1335621-A (GB)
Title: Conforming of shoe uppers to the shapes of appropriate lasts
IPC: A43D13/00
Filed: 1971-01-13
Abstract: 1335621 Boots &c BRITISH UNITED SHOE MACHINERY CO Ltd 13 Jan 1971 [14 Jan 1970] 1565/71 Heading A3B A method of lasting in which the insole I is not tacked or otherwise secured to the last L includes the steps of pulling the upper U toewardly about the last L so that the lasting margin forms a pocket 36 around the heel end of the last, placing an insole I on the last bottom with its heel end nested within the pocket 36, registering the toe end of the insole with the toe end of the last, clamping the insole against the heel end of the last bottom and then lasting the heel end of the upper. The toe end of the insole I is registered with the toe end of the last L by applying a flexible band 40 around the toe end of the last L to form a pocket 80 and placing the toe end of the insole I in the pocket 80. A lasting machine for performing these operations is of the type described in Specification 1,034,662 but having upper tensioning means 18 and a gauge mechanism 38. The upper tensioning means includes a two pairs of grippers 18 which are each closed by piston and cylinders 20 and which are carried by bracket 22. The bracket 22 is mounted on a parallelogram linkage 24, one link of which is formed as a bell-crank 26 and is connected to the piston rod 30 of cylinder 32. Operation of the cylinder 32 causes the bracket to be swung toewardly and upwardly, thus tensioning the upper U about the last L.  The gauge mechanism 38 includes the flexible band 40 which is carried by arms 44 pivoted on block 48 and urged together by spring 50. The block 48 is pivoted to a slide 54 which is connected to piston rod 68 by a double armed lever 62, 66. A lug 72 on the block 48 has a pin 74 which rides in cam slot 76 so that when cylinder 70 is operated the band 40 is moved towards the toe of the last and is swung downwardly at the same time to form the pocket 80. When the insole I is located on the last within the pockets 36, 80 the last support 10 is raised to clamp the insole against the last by means of hold down 82. The hold-down 82 has a movable foot portion 86 which allows the insole to move with the last during the lasting operations. The heel end is then lasted as described in the abovementioned Specification.
Patent GB-859785-A (GB)
Title: Improvements in or relating to devices incorporating coaxial electrical conductors
Inventor: SHRIMPTON BERNARD ROY
IPC: H01R13/646
Filed: 1958-01-18
Abstract: 859,785. Couplings. RACAL ENGINEERING Ltd. Jan. 19, 1959 [Jan. 18, 1958], No. 1779/58. Class 38(1) In a device, such as a plug or socket, incorporating coaxial conductors separated by an insulator of synthetic plastic material which extends into a recess in at least one of the conductors, said recess 11 a which is formed in the outer conductor 11<SP>1</SP> in the embodiment shown in Fig. 2, is formed with undercut sides whereby any shrinkage which occurs in the moulding of the insulator causes the material in the recess to be drawn into tight engagement with the sides thereof. Where the insulator is subjected to pressure sufficient to fracture it, supporting washers 23, Fig. 3, may be provided on either side and held against shoulders 21b in the outer conductor 21 by sleeves 24 screwing into the conductor.
Patent GB-819915-A (GB)
Title: An electric torch
IPC: F21V33/00
Filed: 1956-01-19
Abstract: 819,915. Lamps combined with mirrors. ADLER, M. April 12, 1957 [Jan. 19, 1956], No. 1906/56. Classes 39(2) and 75(3) An electric torch comprises a substantially tubular body portion 11 for housing an electric battery, means for switching the torch on and off and gripping means for detachably mounting the torch on an edge of a hand mirror 14, the arrangement being such that main portion of light emerging from the torch is directed in a plane substantially at right angles to the longitudinal axis of the body portion. The body portion which is preferably of moulded insulating material is formed with a longitudinal groove whereby it can be gripped over an edge of a mirror, the lamp bulb 24 being disposed beneath an opaque dome or cap 23 which is rotatable relative to the body portion 11 and provided with an aperture through which light is emitted in a desired direction, e.g. upon the face of the user of the mirror, by rotating the said cap 23. As shown in Fig. 4 the body portion or casing 11 is hollowed to receive a cell 18 from which part of the insulation has been removed so that the wider end of a tapered helical spring 25 can be engaged over the metal casing of the cell and make electrical contact, the metal cap of the bulb being screwed into the other end of the spring so that its centre contact is normally spaced from the centre pole of the cell. The bulb circuit is completed by pressing the domed cap 23 inwardly within a space provided by a countersunk portion 19 of the housing 11. An inwardly directed beading or lip 21 at the opening of the housing 11 engages a beading 22 around the base of the cap 23 to retain the latter in the housing, either or both of the interengaging portions being provided with a slot to render it resilient and facilitate engagement and disengagement. An inwardly directed abutment may be provided to help ensure axial movement of the bulb when cap 23 is operated. The groove 13 which grips the edge of the mirror is V-shaped and the back edge of the rail 12 is rounded to avoid chafing the lining of a handbag when the mirror is inserted in and withdrawn from a handbag. In a modification, Fig. 6, switching is effected by exerting pressure upon the bottom of the cell so that the opposite end is pushed against the centre contact of the lamp, this being effected by a disc 37 on a stem 36 provided with pressing knob 39. Two diametrically opposite notches 41 may be provided in the disc 37 to receive inwardly projecting ridges 42 in the casing, so that by pressing the disc 37 further within the housing and then rotating it the lamp will remain "on". This switching method may be either alternative or additional to that shown in Fig 4. A small hood 31 may be provided at the edge of the light aperture 29, and the latter may have a translucent window or, preferably, a Fresnal lens 30. A leaf spring may be provided in the groove to grip the mirror edge or the body portion of the torch may be provided with one or more 'spring clips for detachably mounting the torch on the mirror's edge.
Patent GB-1114681-A (GB)
Title: Nylon tyre cord
IPC: D02G3/48
Filed: 1966-01-14
Abstract: 1,114,681. Pneumatic tyres. MONSANTO CO. 14 Jan., 1966 [19 Jan., 1965], No. 1920/66. Heading B7C. [Also in Division B5] A nylon reinforced non-flat spotting vehicle tyre is produced by (1) stretching a nylon tyre cord at least 3% while heating it to 300- 350‹ F. for about 60 seconds (said tyre cord having a denier above 1000 and having uniformly diffused throughout its individual yarns an organic hydroxylated plasticizer in a proportion sufficient to decrease its cord modulus at 25‹ C. by at least 10% (see Heading B5B); (2) thereafter embedding the cord into rubber plies by dipping in an adhesive solution and passing it through a second drying zone heated to between 400‹ and 500‹ F. for 20 to 60 seconds while stretching the cord about 9%; and (3) fabricating a rubber vehicle tyre from the plies.
Patent GB-299293-A (GB)
Title: Improved manufacture of resin solutions
IPC: C11D15/00
Filed: 1928-01-20
Abstract: 299,293. Soc. d'Exploitation de Brevets et ProcÚdÚs P. N. Oct. 22, 1927, [Convention date]. Addition to 263,393. Soaps, processes for making.-The process of forming aqueous resin-bearing fluids described in the parent Specification by treating resin in the cold with caustic alkali solution, is modified by replacing the cold solutions of caustic alkali by cold solutions of other free soluble mineral or organic bases or salts of such bases. The concentration of the base or salt must be less than that which would cause precipitation or salting- out of the resinate of the base, and if salts are used, the acid of such salt must have a weaker dissociation constant than that of the resin acids present. Subject to these conditions mixtures of bases or salts or both may be used. The resin solutions obtained may be enriched by the addition of a quantity of the base, salt &c. not greater than that suitable for a first operation and reacting the mixture with further resin.
Patent GB-668123-A (GB)
Title: Improvements in or relating to a device for dispensing liquids
IPC: A61J1/00
Filed: 1950-01-25
Abstract: 668,123. Surgical injection apparatus. ROLLINSON, E. W. (Baxter Laboratories, Inc). Jan. 25, 1950, No. 1967/50. Class 81 (ii). [Also in Groups XVIII and XX] A partially filled container 10 for dispensing liquids such as intravenous solutions and blood plasma has an open neck 11 sealed by a closure 12 which has a drain passage 14 and an air inlet passage 15 extending therethrough. A tube 20 received within passage 15 has a constriction 22 which is normally sealed by a film of liquid. On allowing the liquid to drain from the container, the liquid seal successively explodes and reforms, the periodicity of which gives an indication of the rate of dispersing of the liquid. The liquid drains through a fitting 18 inserted in a constricted portion 16 of the passage 14, into a flexible tube 19 attached thereto. Ribs 13 in the form of threads may be formed on the neck of the container for securing a cover when not in use. In a modification, the air tube has no constriction, a second tube being inserted in the narrow portion 17 of passage 15 and being provided with a constriction in the parts of the tube outside the container.