baber/WOPTO huggingface dataset:
Patent GB-859151-A (GB)
Title: Improvements in methacrylate polymers
Inventor: CALVETE LOUIS GERALD
IPC: C08F220/14
Filed: 1958-11-28
Abstract: Polymerizable compositions comprise methyl methacrylate with or without a lesser amount by weight of an ester of acrylic acid with a saturated monohydric alcohol containing not more than eight carbon atoms per molecule, and to each molar proportion of methyl methacrylate and acrylic ester, if present, from 0,005 to 0,50 molar proportions of a substitution product of acrylamide or methacrylamide in which one of the hydrogen atoms attached to the nitrogen atom has been substituted by a methylol group or by an alkoxy substitututed methyl group in which an alkoxy group contains not more than eight carbon atoms, and from 0 to 0,25 molar proportions of acrylamide, methacrylamide or a mono-N-substituted acrylamide or methacrylamide or in which the substituting group is not a methacrylamide in which the substituting group is not a methylol group or alkoxy substituted methyl group, the composition being substantially free of compounds containing two or more polymerizable double bonds.  The compositions may be polymerized, e.g. in the presence of catalysts such as benzoyl peroxide, lauryl peroxide and a , a 1- azobisiso butyronitrile, if desired in moulds such as those formed of glass plates separated by resilient gaskets.  The compositions may be partially prepolymerized to syrups before introducing into the moulds.  Specified acrylic esters are ethyl, butyl and ethyl hexyl acrylates; and specified substituted amides are N-methyl acrylamide and N-methyl methacrylamide.  The methylol substituted amide may be prepared in situ in the presence of part or all of the methyl methacrylate by heating the amide e.g., under reflux, with formaldehyde solution, or by passing into the heated mixture gaseous formaldehyde, e.g. obtained by pyrolysing paraformaldehyde, a -poly-oxymethylene or a hemiformal.  The heat distortion and solvent resistance of the polymers may be improved by heating, those with high proportions of methylol or alkoxymethyl acrylamides being thermosetting.  Small amounts of aliphatic acids soluble in the compositions, e.g. methacrylic, acrylic and maleic acids, may also be added to the compositions or syrups.
Patent GB-1218011-A (GB)
Title: Improvements in mechanism for intermittently actuating the discharge valve of a pressurised dispensing container
Inventor: FLANAGAN PETER
IPC: F16K31/524
Filed: 1966-08-26
Abstract: 1,218,011. Pressurized dispensing containers. COOPER, McDOUGALL & ROBERTSON Ltd. Nov.27, 1967 [Aug.26, 1966], No.38445/66. Heading F1R. [Also in Division F2] A device for intermittently activating the valve 7 of a pressurized dispensing container 8 comprises a lever 4 pivoted on a back plate 1 at 3 and to a second lever 6 at 5 the pivot also carrying an angularly adjustable cam 11 engageable with the valve 7. The end 23 of the lever 4 engages circular surface 18 having a cut-out portion (20) and the end of the lever 6 has a portion 22 engaging a snail cam surface 17, the surfaces 18, 19 being formed on a common member driven by a motor. The levers 4, 6 are drawn together by a spring 14 which is tensioned by rotation of the snail cam. When the end 23 enters the cut-out portion (20) the lever 4 pivots about 3 to actuate the valve 7. When the follower 22 drops down the snail cam surface 19 the lever 6 strikes a stop 25 on the lever 4 to pivot it about 3 and so release the valve 7.
Patent GB-1182989-A (GB)
Title: Lamp Flashing Circuits.
IPC: B60Q1/38
Filed: 1968-08-12
Abstract: 1,182,989. Switching circuits. FORD MOTOR CO. Ltd. 12 Aug., 1968 [22 Aug., 1967], No. 38451/68. Heading H3T. [Also in Division G4] In the figure a two terminal lamp flashing circuit comprises a thyristor 27 which is biased on by voltage divider 51, 53 such that with switch 83 closed capacitor 35 charges from source 10. Relay coil 101 operates contact 71 when 35 has a sufficient voltage across it, this causing lamp 97 to illuminate and also the thyristor to be back biased due to the voltage appearing at junction 43. Capacitor 35 now discharges opening 71 and hence switching off 97. The path to 97 via resistors 51, 53 is of a high enough resistance to prevent the lamp lighting up with 71 still open.
Patent GB-1525115-A (GB)
Title: Method and apparatus for measuring the solids content of suspensions
IPC: G01N9/00
Filed: 1975-09-19
Abstract: 1525115 Testing physical properties NISHIHARA ENVIRONMENTAL SANITATION RESEARCH CORP Ltd 19 Sept 1975 [20 Sept 1974] 38620/75 Headings G1G and G1S A suspension of a solid in a liquid, e.g. sewage sludge, is pressurized to remove gas bubbles thus rendering the determination prior to ultrasonic measurement of the solids content, more accurate. A sample may be placed in a vessel 1 connected to a compressor 10 and a vacuum pump 13 and having ultrasonic density detectors 16 connect to meter 14. The vessel 1 may initially be depressurized by the pump 13. An alternative arrangement Fig. 4  (not shown), uses a section of a pipeline as a measuring vessel, the section being temporarily isolated and by-passed during readings
Patent GB-914167-A (GB)
Title: Improvements in spring suspensions
Inventor: MOULTON ALEXANDER ERIC
IPC: B60G11/22
Filed: 1958-12-23
Abstract: 914,167. Road vehicle spring suspensions. MOULTON DEVELOPMENTS Ltd. Dec. 23, 1959 [Dec. 23, 1958], No. 39139/59. Divided out of 914,166. Class 108(2). A road wheel carrying arm 30 journalled to the vehicle underframe 7 at 31 carries a nylon socket 33 for a ball joint connection with the cylinder of a hydraulic shock absorber 11 which is connected to the frame 7 via a rubber spring 1 and a metal box structure 4. The leverage between the road wheel and the spring I is 5 to 1. Shims may be inserted between the ball 21 and the end 19 of the shock absorber cylinder into which it screws, in order to take up wear. Specifications 763,432 and 793,772 also are referred to.
Patent GB-1062188-A (GB)
Title: Hatch cover assembly
IPC: B63B19/26
Filed: 1963-10-04
Abstract: 1,062,188. Hatch covers. JAROCO INTERNATIONAL Inc. Oct. 4, 1963 [Jan. 15, 1963], No. 39194/63. Heading B7S. In a hatch cover assembly comprising a horizontal hatch cover (10), which may be in sections (12), a coaming (14) in the plane of the cover and extending around the cover, and an inflatable gasket (16) of generally rectangular cross-section embedded in the peripheral wall (18) of the cover, or cover sections, the gasket. has a vertical engaging surface (30) facing the coaming or the adjacent gasket, means (ribs 24 on the gasket and plates 26 secured in channel 21) are provided to retain the gasket in place (in the channel 21 which provides the cavity 20 in the wall 18 for housing the gasket) during inflation, and friction means (grooves 33) on the gasket engaging surface effect locking of the hatch cover to the coaming by frictionally anchoring the gaskets against the coaming and adjacent gaskets.
Patent GB-1356186-A (GB)
Title: Device for compression moulding parts to be sintered
IPC: B22F3/03
Filed: 1971-08-23
Abstract: 1356186 Compression moulding ING C OLIVETTI & C SpA 23 Aug 1971 [10 Sept 1970] 39472/71 Heading B5A In a double plunger compression moulding machine the article 21, Fig. 2, to be moulded, e.g. a double cam 22, 23, is such that the plungers 25 and 26 are offset from their axis of movement and the die comprises two parts 6 and 7 the latter of which is movable parallel to the plungers by a lever and cam mechanism 14, 18 to allow ejection of the moulded article. The plungers are moved by a lever and cam mechanisms 29, 33 and 38, 42 respectively. A spring loaded pressure plate 52 slidable on the upper plunger 26 holds the die part 7 against the die part 6 during compression and is held in this effective position by a locking means comprising a latch mechanism 76, 80, 72, 61.
Patent GB-998944-A (GB)
Title: A movable partition or cofferdam
Inventor: SAGET PIERRE
IPC: G21C1/14
Filed: 1963-10-08
Abstract: 998,944. Movable partition or dam. COMMISSARIAT A L'ENERGIE ATOMIQUE. Oct. 8, 1963 [Oct. 16, 1962], No. 39611/63. Heading E1H. A movable partition or cofferdam for separating and sealing off two intercommunicating pools 23a, 23b (Fig. 4) comprises a metal apron 1 (made up of channel irons 2, 3 assembled as shown in Fig. 2) with a peripheral reinforcement girder 4 (having a web 13 making it T-shaped) carrying a double angle piece 15, 16 of flexible material whereby said piece flattens and has a sealing action when pressure is applied to either side of said apron. The apron is provided with abutments 27, 28 of flexible material.
Patent GB-1512649-A (GB)
Title: System providing information relating to depth and movement in a fluid
IPC: G01P3/62
Filed: 1975-09-29
Abstract: 1512649 Measuring system KINETRONICS INDUSTRIES Inc 29 Sept 1975 [27 Sept 1974]  39856/75 Heading GIN A system for providing information relating to depth or height and movement in a fluid comprises depth or height responsive means 1 connected to an electrical power source for generating electrical signals V 1  reflective of instantaneous depth or height, means for measuring the values of the electrical signals V 1  at predetermined intervals so as to generate, in use, electrical signals V 5  representative of the actual rate of change of depth or height of the system over the intervals and means for generating a reference signal V REF  representative of a predetermined rate of change of depth or height. The actual rate of change signal is compared, in use, with the predetermined rate of change signal in a comparator 13, an electrical warning signal being generated when the actual rate exceeds the predetermined rate. The described embodiment is directed towards providing said information to a scuba diver and the depth responsive means comprises a transducer 1 in the form of a bridge strain gauge Fig. 5 (not shown) which generates analog voltage signals V 1  reflective of the ambient pressure and thus depth of the system. A first amplifier 3 amplifies the signals V 1  from the transducer 1, the signals V 2  being produced thereby passing to a pair of sample and hold devices 5, 7. The sample and hold devices 5, 7 form part of the aforesaid measuring means. A timing oscillator provides a train of pulses Fig. 9 (not shown) from which are produced in each cycle a pair of timing pulses to provide said predetermined intervals. Each of a pair of timing pulses, SIG.A, SIG.B is fed to a different one of the sample and hold devices 5, 7 such that the outputs V 3 , V 4  thereof comprise depth measurements at successive times. These outputs V 3 , V 4  are fed to a differential amplifier 11 for comparison and the output V 5  then being, as stated above, fed to a comparator. From the sign of the output V 5  an indication is given as to whether the diver is ascending or descending in the water, the means for effecting such comprising ascent and descent comparators 17, 19 and associated indicators 21, 23. The system also provides a temperature measurement transducer 31 and a time of dive measurement. The latter is provided by counting the number of pulses generated by the oscillator. The three measurements are selectively displayable on a digital read-out, Fig. 4 (not shown) but since the depth and temperature measurements are analog an analogue to digital converter is provided Also a data select circuit and switching means are provided for selecting the data required to be displayed. A pressure operated switch arrangement is provided, Fig. 10 (not shown) for activating the system only when necessary. A delay in switching off the system is built into the switch arrangement.
Patent GB-1281960-A (GB)
Title: Indicator for indication of spent flashbulbs in multiflash devices
IPC: G03B15/04
Filed: 1970-08-19
Abstract: 1281960 Multiflash devices PATENTTREUHAND-GES FœR ELEKTRISCHE GLœHLAMPEN mbH 19 Aug 1970 [20 Aug 1969 15 Dec 1969] 39984/70 Heading G2A A multiflash device, e.g. a flashcube, includes means for indicating which flashbulbs thereof are spent, the means comprising a piece of material 2 associated with each bulb, which material is visibly changed in shape or size upon exposure to the heat and/or light generated by ignition of its associated bulb. The cube has a protective envelope 1 under the top surface of which a sheet of cardboard is placed, the cardboard having four recesses allowing the underlying material, or foil, to be visible. After shrinkage, or melting, the foil is no longer visible in the recesses. The foil may be coloured, or carry luminous pigments. The foil may be placed on the side faces of the envelope 1, ignition of a flash bulb causing a hole to form in its associated face.
Patent GB-1256089-A (GB)
Title: Power transmission
IPC: F16G1/08
Filed: 1968-12-05
Abstract: 1,256,089. Belt gearing. B. F. GOODRICH CO. 5 Dec., 1968 [5 Dec., 1967], No. 39984/71. Divided out of 1,256,087. Heading F2Q. In a power transmission system having a continuous flat belt 20 interconnecting flat pulleys 11, 12 and a grooved pulley 10, the belt has a layer of inextensible warp cords 30a embedded in a matrix 30b of elastomeric material, a top layer 30d of elastomeric material bonded to one face of the matrix 30b, a base layer 30c of elastomeric material bonded to the other face of the matrix 30b, and the diameter of the cords is less than 2% but greater than 0À3% of the diameter Dp of the smallest pulley 12. The perpendicular distance b from the outer surface of the base layer 30c to the centre of the cords is between 100% and 300% of the diameter of the cords. The width of the belt is at least 150% of its thickness.
Patent GB-1010610-A (GB)
Title: Electromagnetic relays
IPC: H01H50/28
Filed: 1962-10-23
Abstract: 1,010,610. Electromagnetic relays. AMERICAN MACHINE & FOUNDRY CO. Out. 23, 1962 [Nov. 9, 1961], No. 40126/62. Heading H2B. An L-shaped armature 12 is mounted on an L-shaped yoke 11 by a pre-stressed spring plate 32 which biases the armature away from the core 17 of the relay and is protected against overbending by a stop 61. The spring plate 32 is secured to the yoke 11 by screws 33 which pass through vertical slots in the plate, thereby allowing adjustment of the gap between the armature and yoke. The spring is bowed prior to assembly and may be made of a beryllium copper alloy or of magnetic material. The armature 12 actuates two change-over contact sets 39, 40, 41 separated by an insulating arc barrier 51 which has an edge 53 to limit upward movement of the armature and an edge 52 which overlies the bobbin 16 of the relay. A non-magnetic shim 54 is secured to the armature 12 to prevent sticking. A bowed spring pressure plate 59 overlies the upper part of the plate spring 32 which is of octagonal shape.
Patent GB-1243890-A (GB)
Title: Improvements in or relating to the epitaxial deposition of inorganic material on a surface of a silicon crystal
IPC: H01L21/20
Filed: 1969-08-13
Abstract: 1,243,890. Epitaxial deposition. SIEMENS A.G. 13 Aug., 1969 [14 Aug., 1968], No. 40381/69. Heading C1A. Epitaxial deposition of an inorganic substance on silicon comprises cleaning a silicon crystal by heating to above 1000‹ C. in an oxidizing atmosphere, causing the deposition of a layer of oxide 20-100 Š thick, followed by annealing the crystal preferably at 1000-1028‹ C. in an atmosphere of hydrogen or a rare gas and hydrogen whereby the oxide layer is removed, leaving a pure silicon surface. The crystal is then maintained in an atmosphere free of oxidizing agents prior to epitaxial deposition of an inorganic substance on the surface.
Patent GB-1532360-A (GB)
Title: Apparatus for the controlled exercise of the vaginal muscles and for measuring the force exerted by them
IPC: A63B24/00
Filed: 1977-09-28
Abstract: 1532360 Physiological measuring; exercising the vaginal muscles and measuring their force H REMIH 28 Sept 1977 [28 Sept 1976 22 Aug 1977 3 Sept 1977] 40390/77 Headings A5K and A5R [Also in Division G1] Pneumatic apparatus for exercising the vaginal muscles and measuring the force exerted by them comprises a probe body 5 connected to a hand pump 1 and a pressure indicating arrangement 7. The probe body comprises longitudinal and transverse bores 22, 23 which convey pressurized air from pump 1 to expand a sheath 26 surrounding and secured to the body at the ends of the latter's concave section. The muscular force exerted on the expanded sheath is transmitted via line 6 to be indicated by the pointer and scale arrangement shown or alternatively by an electrical digital indicator.
Patent GB-1165676-A (GB)
Title: Imaging System.
IPC: G03G13/28
Filed: 1966-09-12
Abstract: 1,165,676. Printing plates. RANK XEROX Ltd. 12 Sept., 1966 [13 Sept., 1965], No. 40611/66. Heading B6C. [Also in Division G2] A lithographic master is formed by forming an electrostatic latent image on a xerographic plate, developing the image with an aqueousbased developer, placing the imaged surface in face-to-face contact with a hydrophilic base, coating the back of the base with a hydrophobic material until the front of the base is hydrophobic, applying pressure to the back of said xerographic plate to transfer the developed image to the base, and separating the base from the plate. Preferably the base is paper and the hydrophobic material is an aliphatic hydrocarbon. The developer may contain a resin (e.g. vinyl resin, a cellulose derivative, starch, a protein, an acrylic resin or an alginate) and a thickner (e.g. a gum, dextrine, glucol, glycerol or polyethylene oxide). Thelithographic plates may be used for printing using an aqueous-based ink containing a dye, pigment or metal complex, the ink being applied by a rubber blade.
Patent GB-950479-A (GB)
Title: A load-break disconnecting switch
IPC: H01H33/12
Filed: 1960-11-25
Abstract: 950,479. Gas-blast switches. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. Nov. 25, 1960 [Dec. 1, 1959], No. 40616/60. Heading H2B. A load-break disconnecting switch has a main blade which in the opening operation engages and moves an auxiliary blade to separate it from a gas-blast extinguishing head housing a pressure-operated moving contact. In the arrangement shown, co-operating main blades 5, 6, Fig. 2, are initially separated from the dotted line position without arcing. Then the main blades move the auxiliary blades 7, 8 into the full line position. As the auxiliary blades start to move, a valve 15 is opened to admit pressure gas to the extinguishing heads, the gas entering cylinders 14 to cause the moving contacts 11 to be withdrawn against the bias of springs 12, and issuing from nozzles 13 to provide gas blasts. To prevent damage to the extinguishing heads should the switch be closed on to a short-circuit, the contacts 11 may be withdrawn and subjected to the gasblast during the closing operation of the switch.
Patent GB-923227-A (GB)
Title: Magnetic record member
Inventor: WAGNER HERBERT
IPC: G11B5/702
Filed: 1961-11-14
Abstract: 923,227. Magnetic structures. BADISCHE ANILIN- & SODA-FABRIK A.G. Nov. 14, 1961 [Nov. 16, 1960], No. 40638/61. Class 38 (2). A magnetic tape with high abrasion resistance comprises a metallic or plastic base having a coating comprising iron oxide particles incorporated in a copolymer of 60-90% by weight of'styrene and 40-10% by weight of acrylonitrile. This coating may be the uppermost layer of a multilayer tape whose inner layers incorporate conventional binders, e.g. butadiene-acrylonitrile or vinylchloride-vinylacetate. The magnetic particles may be oriented by a magnet. Solvents and emulsifiers are specified. The tape bases may be p.v.c. or a polyester resin.
Patent GB-944938-A (GB)
Title: Improvements in or relating to storing liquefied hydrocarbon gases and fractionatinghydrocarbon mixtures
IPC: F17C13/02
Filed: 1960-11-28
Abstract: An integrated system for storing liquified, normally gaseous hydrocarbons and distilling a mixture of normally liquid and normally gaseous hydrocarbons comprises storage facility for the liquified gas with refrigeration means for maintaining the hydrocarbons in the liquid phase at subatmospheric pressure and a fractional distillation means including a feed heater and a reboiler, the heating requirements for which are supplied by the refrigeration means.  When passing gasoline and liquified petroleum gas successively through a pipe line 11 the pure liquified gas is passed into container 17, and there stored at normal temperature, e.g. 75 DEG F., and 133 p.s.i.g. in the case of propane.  Vapour above the liquid in the container may be removed by line 18, compressed, cooled and returned, with expansion and consequent cooling to the container via purger 21. Mixed gasoline and liquified gas flowing in the pipe line at the interface is diverted to container 15, whence it is heated in heater 31 and passed to fractionator <PICT:0944938/C3/1> 33 which is heated by reboiler 44.  Overhead is condensed in condenser 35 to liquify the gas, part being used as reflux and the remainder passing by line 38 to refrigerated storage tank 25, kept e.g. at 33 DEG F. and normal pressure by removing vapour by line 26, compressing, in compressor 27, cooling and returning by line 29. Parts of the hot, compressed vapours from compressor 27 are diverted to provide heating for heat-exchanger 31 and reboiler 44 before returning to tank 25. Gasoline obtained as bottoms from still 33 passes to storage.  The condenser 35 is cooled by compressed liquid from tank 25.  Liquid in storage tank 17 may be transferred to tank 25 by line 22 or for transport or use by line 60. Liquid from tank 25 is withdrawn by line 52 via heater 46 also heated by compressed vapours from compressor 27.
Patent GB-1071639-A (GB)
Title: Photographic reproduction process
Inventor: PRUCHARD ALAIN
IPC: G03C5/30
Filed: 1963-10-16
Abstract: 1,071,639. Colloid transfer process. EASTMAN KODAK CO. Oct. 16, 1963 [Oct. 16, 1962], No. 40945/63. Heading G2C. In a multiple colloid transfer process wherein an exposed silver halide emulsion layer is developed with an alkaline solution of tanning developer containing a softening agent for the colloid, e.g. urea and formamide the pH of the alkaline solution is less than that at which the hardening effect of the tanning developer is a maximum and is maintained within a range of 0À1 pH units during the whole transfer process. A non-tanning developer may also be present and the emulsion layer may contain an agent preventing spontaneous hardening e.g. 5, 5-dimethyl cyclohexane-1, 3-dione. The pH control may be obtained by means of a buffering agent e.g. a mixture of potassium carbonate and sodium sesquicarbonate or sodium carbonate and sodium bicarbonate. The alkaline solution may also contain a sequestering agent and an alkaline earth metal or alkali metal chloride. The receiving sheet may contain a fogging agent for silver halide e.g. thiourea and an agent which reduces the rate of tanning by tanning developer e.g. sodium-formaldehyde bisulphite.