baber/WOPTO huggingface dataset:
Patent GB-693656-A (GB)
Title: Improvements in or relating to closures for containers and a method for the production thereof
IPC: B65D51/00
Filed: 1951-04-03
Abstract: <PICT:0693656/III/1> Stoppers or closures particularly for medicine bottles or ampoules for for intravenous injections are coated with a thin glace film of a silicone antifoam agent e.g. by dipping, spraying or brushing or by impregnating the material from which the stoppers are made e.g. rubber with the antifoam agent, which may be a dispersion or solution of the silicone compound.  After dipping &c. the solvent is allowed to evaporate leaving a thin film 24 of the antifoam agent over the stopper 10.  The rubber stopper shown is of the form adapted to be punctured by a hypodermic needle for withdrawing the medicament into a syringe, and has an interior hollow bore 20.  When the bottle, ampoule &c. is shaken the antifoam agent is introduced into the medicament and the foam is suppressed.  The film on the stoppers also acts as a lubricant and prevents them sticking together in clusters in the autoclave during sterilization. The film may be applied only upon those surfaces of the stopper which comes into contact with the liquid. The compound used is that known as "D.C. Antifoam A," and the solvents may be cyclohexane, ethyl ether, methylene chloride &c.
Patent GB-1373012-A (GB)
Title: Electron beam welding apparatus
IPC: G05F1/563
Filed: 1972-03-10
Abstract: 1373012 Automatic voltage control JOSEPH LUCAS (INDUSTRIES) Ltd 10 March 1972 [23 March 1971] 7833/71 Heading G3R The voltage across an electron beam welding device is regulated by controlling a variable resistance in series with the device. In the arrangement shown, A.C. mains voltage is applied to an EHT transformer and rectifier 11. The resulting D.C. supply is connected across a series combination including an electron beam welding chamber 10 with cathode 14 and anode 15, a transistor 16 and a tetrode valve 17. The voltage across the chamber 10 is sensed by resistors 21, 23 in series with an ammeter 22, and a corresponding signal is supplied to one input of a differential amplifier 24 for comparison with a reference voltage from a source 25. The amplifier output controls the transistor 16, thus varying the cathode potential of the tetrode 17. The resistance of the transistor-tetrode combination is thus controlled to maintain a constant voltage across the chamber 10. A stabilized D.C. supply is connected across terminals 18, 19 of the tetrode.
Patent GB-492293-A (GB)
Title: Improvements in or relating to electric switches actuated by fluid pressure
IPC: H01H29/28
Filed: 1937-03-17
Abstract: 492,293. Mercury switches. AUTOMOTIVE PRODUCTS CO., Ltd., and GATES. G. R. G. March 17, 1937, No. 7838. [Class 38 (v)] On the application of the hvdraulic brakes of a vehicle, fluid pressure induct 14 lifts diaphragm 18 against the action of a spring 27 to force mercury along a channel 29 and thus complete a circuit between electrodes 25, 34, to energize a signal lamp. In a modi. fication, both electrodes are normally out of contact with the mercury in separate channels and the mercury rises to bridge them.
Patent GB-1057323-A (GB)
Title: Device for fastening an object to a thin wall
IPC: F16B13/08
Filed: 1964-02-25
Abstract: 1,057,323. Bolting; anchor-nuts. L. A. MORTENSEN. Feb. 25, 1964 [Feb. 26, 1963], No. 7873/64. Heading F2H. A fastener, e.g. of plastics material, for use with a screw 40 in securing an object to plasterboard 36, 38, comprises a nut 22 having an elongated body with a transverse threaded bore 24, Fig. 2, and pivoted by its pin projections 26 in slots 20 in two arcuate-sectioned arms 16 extending from an unthreaded bush 10 which has a flange 14 and ribs. The arms 16 are joined by an arcuate bridge 18 which locates in a groove in the nut 22 when the latter is swung to the position indicated in Fig. 2 for alignment with the bush 10 and arms 16 for insertion in a hole 34 in the plasterboard. After insertion, the screw 40 is introduced so that its end pushes against an oblique end face 28 of the nut and the latter swings to the position shown with its bore 24 aligned with the screw. After a partial screwing-in of the screw as indicated, the screw is pulled outwards to draw the nut 22 past projections 44 to the back of the plasterboard. The screw 40 is removed and the nut is then anchored in position ready to receive a screw after its insertion in the object to be secured. Instead of the projections 44 for preventing backsliding of the nut 22, the slots 20 may each have a long, narrow neck, Fig. 5 (not shown).
Patent GB-755449-A (GB)
Title: Improvements in or relating to a combined container and mixing pan or tray, for example, for artists' colours
IPC: B44D3/04
Filed: 1954-03-18
Abstract: 755,449. Artists' paint-containers. GOWLAND, J. P. March 18, 1954 [March 19, 1953], No. 7909/54. Class 11 [Also in Group XVII] A combined container and mixing pan for artists colours comprises a hollow deformable container and a mixing pan integral therewith, a normally-sealed portion of the container being of such a nature that it may be easily punctured in order that some of the contents thereof may be extruded into the pan by deforming the container. As shown in Figs. 1 and 2 a single structural element 16 is formed to define recesses 17, 18, 19, the recess 17 forming the bottom part of a container 23, and the recesses 18 19 defining mixing pans. The container is completed by a sheet 21 which may be welded or otherwise secured to the element 16 at 22. Alternatively the container may be formed of a single moulding as shown in Fig. 5. After filling the open end of the container is sealed as at 29. As shown in Fig. 4 the containers and pans are defined by embossing on a sheet 27, paint being retained in the containers by a deformable backing sheet 108 which is sealed to the sheet 27. In another embodiment the mixing pan may be made hollow so as to contain paint, deformation of the pan resulting in the extrusion of paint therein. The container may be surrounded by a metal casing so that when deformed it does not return to its original shape. thus preventing air being sucked into the container. The containers may be made up to form a palette 80 (Figs. 24, 25) a flat surface 81 being provided with depressions 87 defining mixing pans, the containers being formed on the under surface adjacent the pans 87 by means of members 82,
Patent GB-873646-A (GB)
Title: Machine for bending bars and tubes
IPC: B21D7/02
Filed: 1959-03-06
Abstract: 873,646. Angular bending. HOWELL, N. March 7, 1960 [March 6, 1959], No. 7945/59. Class 83 (4). A machine for bending bars and tubes incorporates a rotatable bending head associated with a former, a double-acting cylinder and piston device and a differential pulley system incorporationg two cables operatively connecting the cylinder and piston device with the bending head the arrangement being such that movement of the piston in one direction or the other tensions one or other of the cables to cause the bending head to rotate in one direction or the other. A bending head 7 carries rollers 12 adjusted by a screw device 11, which bend a bar or tube, clamped to the machine table, around the former fitted to a pin 8 around which the bending head 7 is rotated by a doubleacting cylinder 2 and piston 3. The piston 3 is drivingly connected to the head 7 by two cables 13, 16. The cable 13 is secured to one end 15 of the machine frame and at the other end to a pulley 9, fixed to the head 7 and coaxial with the pin 8, and runs over a pulley 6 carried by a rod 4 of the piston 3. The cable 16 is secured at one end 19 to the piston-rod 4 and at the other end to a pulley 10, fixed to the head 7 and of half the diameter of the pulley 9, and runs over an idler pulley 18 on the machine frame. Thus as the piston 3 moves away from the bending head the pulley 6 will move the cable 13 to rotate the head 7 in one direction and as the piston 3 moves back towards the bending head it pulls the cable 16 to rotate the head 7 in the opposite direction.
Patent GB-200872-A (GB)
Title: Improvements relating to fire extinguishers
IPC: A62C8/00
Filed: 1922-03-18
Abstract: 200,872. Minimax, Ltd., and Gregory, G. A. March 18, 1922. Hand sprinklers for liquids -A small hand fireextinguisher for sprinkling or pouring carbon-tetrachloride or other chemical on to a fire comprises a receptacle a of glass &c. having a narrow sealed neck a<1> adapted to be broken to discharge the liquid, the receptacle a being encased in a covering of cardboard &c. b and enclosed in a casing c of metal &c. The receptacle a may be retained in the casing c by the friction of its covering with the inner surface of the casing, or, as shown, by means of a diaphragm d within the casing having a central opening through which the neck a<1> protrudes, the receptacle being held in position by a screw cap e and felt &c. washer f. The diaphragm d may be replaced by tongues cut in the wall of the easing c and bent inwards to engage the shoulder of the receptacle a. The breakable neck a<1> may be normally protected by a slidable cover g having a stop-ring g<1> to bear against the upper end of the casing c.
Patent GB-684504-A (GB)
Title: Improved means for securing broom and like handles in position
IPC: B25G3/28
Filed: 1950-03-30
Abstract: 684,504. Broom-handle fixings. PARKES, J. A. March 19, 1951 [March 30, 1950] No. 7977/50. Class 61 (i). An attachment member for securing a handle to a broom comprises a cylindrical handle engaging portion and an expansible portion adapted to be placed in a recess in the stock and to be expanded by screw and nut mechanism. The handle engaging part 14 is split longitudinally and provided with radial flanges 16 which are drawn together by a nut on a screw 18. The lower cup-shaped part 19 is provided with a hole in which is mounted an internally threaded bush 20 through which extends a screw 23 carrying a rubber ring 25 and conical metal washer 26. The screw and ring assembly is inserted in the recess in the stock and the ring extended by turning the part 14 tommy holes 27 being provided therein for this purpose. The Provisional Specification describes an attachment member having a resilient extension which is placed in the recess in the stock and expanded by a cone which is drawn into the end thereof by a screw the head of which engages a cross bar.
Patent GB-575063-A (GB)
Title: Improvements relating to breech-closing springs and plungers for automatic firearms
IPC: F41A5/18
Filed: 1943-05-20
Abstract: 575,063. Automatic smallarms. WESTERNCARTRIDGE CO. May 20, 1943, No. 8056. Convention date, Sept. 22, 1941. [Class 119] The mainspring 37, seen from underneath in Fig. 5, of an automatic rifle or carbine, is housed in a tubular recess,38 in the side of the receiver 10, and is compressed by a rod-like plunger 33, the front end of which is pressed into a shallow recess 32 in the rear face of a reciprocating part, such as the cross-head 24 of the piston-rod 22 of a gas-operated mechanism. The rod is knurled at 34 so that it may be finger-operated for insertion or removal. To facilitate insertion, the recess 38 is of larger diameter than the spring and an incline 39 is cut in the cross-head 24 leading into the recess 32.
Patent GB-916660-A (GB)
Title: Linear aromatic polysulphonates
Inventor: CONIX ANDRE JAN
IPC: C08G75/24
Filed: 1959-03-09
Abstract: High molecular weight linear polysulphonates, suitable for the manufacture of films or fibres, are made by condensing a diacid halide of an aromatic disulphonic acid with a metal phenolate of a bis-phenol, the bis-phenolate being dissolved in water and the di-acid halide being dissolved in an organic liquid in which the polysulphonate formed by the reaction is to some extent soluble. Preferably the disulphonic acid has the formula HO-SO2-A-SO2-OH wherein A represents:- <FORM:0916660/IV(a)/1> and the bis-phenol has the formula Ho-Ar-R-Ar-OH wherein Ar represents a benzene nucleus which may be substituted by halogen or methyl and R and R1 represent a chemical bond, an oxygen atom, a carbonyl group, a sulphonyl group, an alkylene radical, an alkyl- and/or aryl-substituted methylene group, a halogen-substituted methylene group, a halomethyl-substituted methylene group, a cycloalkyl-substituted methylene group or a carbon atom forming part of a cycloaliphatic ring.  Preferably the bis-phenolates are formed by dissolving the bis-phenol in aqueous sodium- or potassium-hydroxide solution.  A quarternary ammonium compound is preferably used as a catalyst.  At the end of the reaction, the polysulphonate may be precipitated from its solution in the organic liquid with hot water or ethanol.  The polysulphonates are soluble in methylene chloride, 1:2-dichloroethane or sym.-tetrachloroethane and may be cast from these solvents into films suitable for use as photographic film bases.  In examples, the following substances were reacted in the presence of methylene chloride (1) diphenyl ether p-p1-disulphonyl chloride and bis-phenol A; (2) diphenyl-p-p1-disulphonyl chloride and bis-phenol A; (3) diphenyl ether-p-p1-disulphonyl chloride and 4,41-dihydroxydiphenyl-phenyl-methane; (4) diphenyl ether-p-p1-disulphonyl chloride and 4,41-dihydroxydiphenyl-diphenyl-methane; (5) diphenyl-p-p1-disulphonyl chloride and 4,41-dihydroxydiphenyl-phenyl-methyl-methane; (6) diphenyl-p-p1-disulphonyl chloride and 4,41-dihydroxydiphenyl-1,1-cycloxane; (7) diphenyl-p-p1-disulphonyl chloride and 4,41-dihydroxydiphenyl-2,2-butane; (8) diphenyl-p,p1-disulphonyl chloride and 4,41-dihydroxy-3,31,5,51-tetrachlorodiphenyl-2, 2-propane; (9) diphenyl ether-p-p1-disulphonyl chloride and 4,41-dihydroxy-3,31,5,51-tetrachlorodiphenyl-2, 2-propane; (10) 2,4-toluene disulphonyl chloride and 4,41-dihydroxy-3,31,5,51-tetrabromodiphenyl-2, 2-propane; (11) benzene -1,3-disulphonyl chloride and 4,41-dihydroxy-3,31,5,51-tetrachlorodiphenyl-2, 2-propane. Specifications 621,102, 724,759 and U.S.A. Specification 2,035,578 are referred to.
Patent GB-975637-A (GB)
Title: Improvements in cement mixers
Inventor: DAVIES LEONARD TRUMAN
IPC: B01F5/10
Filed: 1962-03-02
Abstract: 975,637. Cement mixers. COLCRETE Ltd. Feb. 12, 1963 [March 2, 1962], No. 8098/62. Heading B1C. A mixer for producing "colloidal" cement grout or concrete comprises a hopper as at 1 and two or more mixing and pumping units as at 8, 8a drawing water and cement from the bottom of the hopper through a trap 5 and having separate discharge pipes 21, 21a which discharge tangentially into the upper region of the hopper causing the mixture to flow down in a vortical manner. As shown, the hopper 1 is used for mixing cement and water and can be discharged by means of pipes 20, 20a into the hopper 2 for the addition of sand. The hoppers are provided with spiral deflectors 29, 30 to deflect the mixture to the outlets. The bifurcated pump discharge pipes have flexible sections which may be closed by the application of pressure so that the mixture may be recirculated or discharged as desired. The rotors of the pumping and mixing units 8, 8a are discs with small clearance in their casings 1 while those of the units 9, 9a are bladed impellers 12. If a single hopper is used, cement and water are mixed first and sand added later ; the pump rotors may be discs as in 8, 8a or paddle wheels. Water is supplied through a meter 23. An embodiment which may be mounted on transportation tracks or wheels is described with reference to Figs. 2 to 4 (not shown). Reference has been directed by the Comptroller to Specification 694,117.
Patent GB-667507-A (GB)
Title: Improvements relating to gearing housings
IPC: B60K5/02
Filed: 1950-03-31
Abstract: 667,507. Gearing. DAIMLER-BENZ AKT.- GES. March 31, 1950 [March 31, 1949], No. 8122/50. Class 80 (ii). [Also in Group XXXI] In a gearing unit in which a transverse drive is disposed in a housing between two other housings, e.g. as applied to a motor vehicle wherein a differential and half shaft drive is disposed between the clutch housing and gear box casing, the bearings for the transverse drive are arranged within but independently of its housing, such bearings being mounted upon one of the two adjacent housings. The Figure shows in horizontal section a motor vehicle clutch housing b and gear box casing c between which is disposed a housing i for a transverse drive consisting of pinion and crown wheel e, f, differential g and half shafts h<SP>1</SP>, h<SP>2</SP>. The crown wheel and differential cage are carried in bearings m, n integral with the gear box casing, such bearings being completed by bearing caps m<SP>1</SP>, n<SP>1</SP> respectively. The housing i may be provided with an adjustable screw p and lock nut q to take any excessive axial pressure on the bearing cap m<SP>1</SP>. With this construction the bearings m and n together with the gear box casing may be of cast iron whilst the housings band i may be of light metal. Furthermore, the construction facilitates the assembly and adjustment of the differential gear whilst readily accessible, the differential being subsequently inserted in its housing i and the half shafts added.
Patent GB-595208-A (GB)
Title: Method of making furfuryl alcohol resinous products and the resulting products
IPC: C08L71/14
Filed: 1945-04-03
Abstract: A furfuryl alcohol resin capable of conversion is made by mixing with the initial resin of insufficient acidity to be convertible during working prior to conversion, a latent conversion catalyst neutral to slightly acid at room temperature, but effective thereafter to liberate strong acid to cause conversion.  Latent catalysts specified are p-toluenesulphochloride, p-acetylamino benzene sulphochloride; ammonium p-toluene sulphonate, dimethyl amino benzene sulphonate, diethyl amino toluene sulphonate, ammonium benzene sulphonate and disulphonate, o-, m- or p-ammonium phenol sulphonate, ammonium naphthalene sulphonate, ammonium anthracene sulphonate and disulphonate, ammonium sulphanilate; glyoxal sulphate; sodium and p potassium chlorsulphonates.  The initial resin is prepared using as catalysts sulphuric or hydrochloric acids, benzene or toluene sulphonic acids or a sulphur chloride, and controlling the rate of reaction by addition of water followed by neutralization with caustic soda or potash, ammonium hydroxide, lime or an organic base and purification by vacuum distillation.  Furfural may be added to the furfuryl alcohol before polymerization.  A strongly acidic catalyst may be added to the latent catalyst in insufficient amount spontaneously to convert the resin.  The working of the resin may include preparing a moulding powder or paste, or impregnating, coating or laminating solutions in benzene, toluene or acetone. Fillers, e.g. asbestos, glass, graphite, carbon black, slate dust, quartz, wool and wood flour, calcium stearate or dyes may be added. Final conversion is preferably effected at elevated temperature and pressure.
Patent GB-695739-A (GB)
Title: Improvements in cylindrical strainer or filter units
Inventor: GROSPAS PIERRE
IPC: B01D29/46
Filed: 1951-04-09
Abstract: 695,739. Edge filters. SOC. ANON. ETABLISSEMENTS GROSPAS. April 9, 1951, No. 8177/51. Class 46 The filter unit comprises an apertured guide tube 1, Fig. 1, having apertures 4, and a plurality of similar rings 5 mounted outside, Figs. 1 and 2, or inside, Fig. 6, the tube 1. Each ring 5 has a flat base side and the other side 8 tapering radially inwardly towards the base, a flange 10 extending continuously along and from the base into engagement with the guide tube 1, a plurality of angularly-spaced blocks 9 formed on the tapering side and projecting from it, and spacer parts 6 of calibrated thickness e on the blocks 9 adapted to engage with the flat base of an adjacent ring, the flange 10 co-operating with the tube to define a continuous annular passage providing a flowpath. The spacer parts 6 may be separate and removable from the blocks 9 or (as shown) integral with them. The assembly of rings is secured against a fixed ring or flange 7 by a removable abutment 7.<SP>1</SP>
Patent GB-1379079-A (GB)
Title: Method and apparatus for indicating the passing of a projectile through an area in space
IPC: F41G1/54
Filed: 1972-02-22
Abstract: 1379079 Photo-electric target practice aid AUSTRALASIAN TRAINING AIDS PTY Ltd 22 Feb 1972 [23 Feb 1971] 8184/72 Heading H4D [Also in Division F3] To enable a remote indication of where a projectile, e.g. a bullet, passes through a target 3, Fig. 1, the projectile is made an active or passive (reflective), source of light radiation and directional determination of the projectile is carried out from two spaced points 4, 5 to enable a triangulation position determination. The projectile can be illuminated by a single beam of light extending over the full angular extent of the target, e.g. 60 degrees width, the reflected light detectors then being directive, or two scanning directional beams of illuminating light can be used, the detectors then being non- directive, or a single scanning directive beam of illuminating light can be used together with a spaced directive detector. The illuminating beams can be produced as described in Specification 1,379,078. The direction of the projectile from points 4 or 5 are determined with reference to lines marking the lower subtended angular extent of the target, e.g. 15 degrees, above the horizontal. The start of the scan of the illuminating and/or detection beam is marked by a long pulse from a generator SYNC 1, Fig. 3, followed by angle increment indicating short pulses, spaced by 0À02 degrees. The "start" pulse is used to reset a binary counter 1 to zero and the start in the counter of the count of the angle increment pulses. The output of the detector after shaping causes the stop of the count. A common logic circuit causes the two detectors to operate sequentially and the determined stored direction to be sequentially passed via a transfer link (wire or radio),  to the display means. The display means, Fig. 7, may comprise two normally off flash lamps with respective fan beam scanning optics, slaved to the scanning illuminating and/or detector beams, such that the determined directions can cause operation of the flash lamps such that two lines are produced crossing over at the position of the projectile.
Patent GB-198129-A (GB)
Title: Improvements in concrete mixers and the like
IPC: B01F7/02
Filed: 1922-03-21
Abstract: 198,129. Haslam, J. T. March 21, 1922. Stationary batchmixers with rotary stirrers.-A concrete or like mixer comprises a stationary drum 1 provided with a charging opening 2 and a discharge door 3 operated by a hand-lever 4, and a rotating frame 5 carrying blades 6 having slight clearance from the drum along their bases. The blades are of triangular or trapezoidal shape and are fitted with lips 8 extending along part of their side edges.
Patent GB-232757-A (GB)
Title: Improvements in mills for grinding paint and the like
IPC: B02C19/00
Filed: 1924-04-01
Abstract: 232,757. Cooper, C. J. April 1, 1924. Roller mills.-A mill for grinding paint, food, mineral and chemical compounds &c. comprises rollers or worms each having a right-and-lefthand thread arranged to engage the left-and-right hand thread of the adjoining or complemental roller. As shown, two horizontal rollers or worms a, a<1>, b, b<1> are mounted side by side in bearings beneath a stirring or mixing box g so that the right and left hand threads of each roller or worm engage the left and right hand threads respectively of the adjoining roller. The paint &c. is fed preferably to each end of the rollers and discharged at the centre into a trough h. Or the inlet may be at the centre, and the delivery at the ends of the rollers. A loose safety roller j may be provided between the rollers, and slung to lie preferably upon one of them to prevent the operator's fingers from injury by the rollers or large substances from passing between the rollers and to assist in the even distribution of the paint &c. Preferably, one roller is of slightly larger diameter than the other.