baber/WOPTO huggingface dataset:
Patent GB-1185794-A (GB)
Title: Casting and Sizing Method for Ferromanganese
IPC: B22D3/00
Filed: 1968-04-23
Abstract: 1,185,794. Castings. UNION CARBIDE CORP. 23 April, 1968 [24 April, 1967], No. 19016/68. Heading B3F. A method of casting high carbon ferromanganese alloys comprises, (1) providing molten ferromanganese at above 1100‹ C., (2) casting the molten ferromanganese to form slabs, (3) cooling the slabs from 900‹ to 400‹ C. at a rate shown within the hatched part of the graph in Fig. 3 in dependence upon the thickness of the cast slabs and (4) subjecting the slabs to a shattering impact after they have cooled to below 200‹ C. In Fig. 2, molten ferromanganese is poured from a ladle 1 via a tundish 2 into a series of moulds 3 on an endless conveyer 5. After solidification, cast ferromanganese slabs 6 fall on to a cooling conveyer 7, on which they travel at an appropriate speed towards a tumbler 13. For large slabs, air-cooling from fans 9 is used, but for small slabs water-spray cooling from nozzles 11 may also be employed. When watercooling, care must be taken to ensure that all the water evaporates to avoid fine cracking of the slabs. At the end of conveyer 7 the slabs 6 are fragmented in the tumbler 13 and sieved by a screen 17.
Patent GB-710423-A (GB)
Title: Textile treatment compositions
Inventor: FIELD ERNEST ARTHUR
Filed: 1951-08-13
Abstract: Aqueous textile lubricating compositions comprise condensation products of alkyl phenols with 5-20 molecular proportions of ethylene oxide, sodium benzoate and a polyhydric alcohol.  Alkyl phenols specified are a , a - g  g - tetramethylbutylphenol, dodecylphenol, di-tertiary-butylphenol, dioctylphenol, octadecylphenol, 4-methyl-2-tertiary-octylphenol and mixed octyl phenols or octyl cresols obtained by alkylating phenol or crude cresols with butene dimer.  Polyhydric alcohols referred to are glycerol, triethanolamine and polyethylene glycol.  In an example, a mixture was prepared of 100 parts of a 30 per cent. aqueous solution of a p-(iso-octyl) phenol ethylene oxide condensate containing 70 molecular proportions of ethylene oxide, 12 parts of sodium benzoate and 15 parts of glycerol.
Patent GB-777447-A (GB)
Title: Method of lowering the viscosity of emulsions of polymers
IPC: C08L29/04
Filed: 1953-07-09
Abstract: Emulsions of polymers or copolymers of a vinyl ester or of copolymers of styrene, having a high solid content and containing polyvinyl alcohol and/or a water-soluble derivative thereof as emulsifying agent have their viscosities lowered by the addition of hydrogen peroxide.  Specified polymers are polyvinyl acetate and polyvinyl chloride.  The emulsion may be heated after the addition of the hydrogen peroxide.  Softening agents, e.g. dibutyl phthalate, other emulsifying agents, e.g. lauryl sulphate, an emulsion improver, i.e. crotonic acid and further viscosity lowerers such as acids, salts or other electrolytes, e.g. concentrated hydrochloric or acetic acid, sodium chloride, copper or aluminium chloride and sodium or lead acetate, ammonium perchromate, potassium bichromate or manganate and saturated chlorine water, may also be present.  German Specification 747,879 is referred to.
Patent GB-1100375-A (GB)
Title: Polyamides
IPC: C08G69/30
Filed: 1965-05-06
Abstract: Fine particles of a polyamide of relative solution viscosity at least 1.8 are obtained by condensing solutions of an aromatic diester of an aliphatic or cycloaliphatic dicarboxylic acid and a primary aliphatic or araliphatic diamine in one or more organic solvents which are non solvents for the polymer in one or more stages, the final condensation being effected at 100 DEG  to 250 DEG  C. but below the melting range of the polyamide. When the reaction is effected in two stages using a low boiling solvent for the reactants a higher boiling non solvent for the polymer may be added and the first solvent evaporated for the second stage. Specified solvents are aliphatic and aromatic hydrocarbons. Exemplified diacids and diamines are (i) oxalic, (ii) adipic, (iii) sebacic, (iv) hexahydroterephthalic and (v) hexahydroisophthalic acids and (a) hexamethylene, (b) m- or p-xylylene, (c) decamethylene and (d) tetramethylene diamines. In examples polyamides are prepared from (i) (c); (ii) (a); (iii) (b); (iii) (d) and (iv) (a), the phenyl, tolyl or t butylphenyl esters of the acids being used.
Patent GB-702413-A (GB)
Title: Improvements in and relating to control cocks
IPC: B67D7/42
Filed: 1951-08-14
Abstract: 702,413. Valves. BECK & CO., (METERS), Ltd., PHILLIPS, H. E., and SOAR, H. G. Oct. 24, 1952 [Aug. 14, 1951], No. 19182/51. Class 135 A valve for controlling the delivery of liquids is actuated by a manually-operated trigger through means which come under the influence of the supply pressure so that the valve cannot be opened unless it is under the influence of the supply pressure at the instant at which the trigger is moved out of the non-delivery position. In an embodiment, the valve is a lift valve 26 and it carries a sleeve 20 in which slides a further sleeve 30 formed with a piston-like lower end abutting against a diaphragm 28 secured across the inside of sleeve 20. The stem 34 of the valve slides in a guide 21 carried at the upper end of sleeve 20, and the stem is raised by means of a trigger 18 carried by a universally-pivoted arm 18a which engages the upper end of the stem. When liquid is admitted to the delivery hose 13, it acts on the diaphragm 28 and lifts the sleeve 30. The upper end of the latter is formed as a cam surface which forces balls 48 housed in holes in the guide 21 inwardly until they can engage in a groove 50 in the stem, and when this happens, the stem and the valve will be locked together. All the while the liquid can act on the diaphragm, the cam surface will prevent the balls from being forced out of the groove and so disengaging the stem from the valve. A spring-loaded non-return valve 60 prevents the formation of drips when the main valve closes. Any alteration in the volume of liquid trapped between the two valves due to movement of the stem, &c., is taken up by a diaphragm 70 secured inside the cap-like head of valve 60. Specification 645,800, [Group XXVIII], is referred to.
Patent GB-1397414-A (GB)
Title: Ground fault protective system
IPC: H01H71/12
Filed: 1972-04-25
Abstract: 1397414 Protective arrangements RUCKER CO 25 April 1972 [7 May 1971] 19198/72 Heading H2K An earth fault protective arrangement comprises a core-balance transformer 201 with its secondary winding 217 connected to an amplifier 202, an integrator 203, e.g. a capacitor 246, connected to the output of the amplifier and producing a trip signal having a magnitude corresponding to the magnitude and duration of the fault signal, and switching means, e.g. a silicon controlled rectifier 248, operated when the magnitude of the trip signal reaches a predetermined level. In the arrangement shown, when the capacitor 246 is sufficiently charged, a Zener diode 249 breaks down to trigger the SCR 248 into conduction. This causes sufficient current to flow in a circuit including a coil 259, bridge rectifier 261 ... 264 and the controlled rectifier 248, to cause the coil 259 to open contacts 258 in the protected circuit 211, 212. The bridge rectifier also supplies a pulse generator 208 which limits the voltage applied to the amplifier and provides a pulse current to a transformer 209 which couples the pulses to the conductors 211, 212 so that should the earthed neutral conductor 212 become earthed remotely, or the line conductor 211 become shorted to an unprotected conductor, the resulting pulse current would unbalance the core-balance transformer and cause operation of the protective arrangement. Reference has been directed by the Comptroller to Specification 1,353,411.
Patent GB-944017-A (GB)
Title: Improvements in or relating to lock nuts
IPC: F16B39/28
Filed: 1960-05-31
Abstract: 944,017. Lock nut assembly. R. WIDNER. May 31, 1960 [Oct. 6, 1959], No. 19224/60. Headings F2A and F2H. A lock nut assembly comprises a nut 6, Fig. 4, having an annular recess 7, and a thrust bearing 11 held in the recess by an upset 10. In a modfication, upset 10 is replaced by a circlip, and the balls 14 of the bearing are replaced by a ring of self lubricating material. In a further modification, Fig. 6, ring 13 of the bearing is held in the nut by a spring washer 17a, rings 13 and 11 are in contact and the frictional forces between nut 6 and stud 2 are increased by a ring 20 of fibre or plastic material. In a still further modification, the assembly comprises two lock nuts with a washer between the members P and B to be held.
Patent GB-980959-A (GB)
Title: Improvements in or relating to electrical pulse generation arrangements
Inventor: DUKES JOHN MARCUS CUTHBERT
IPC: G06F11/18
Filed: 1962-05-18
Abstract: 980,959. Pulse circuits. STANDARD TELEPHONES & CABLES Ltd. May 17, 1963 [May 18, 1962], No. 19267/62. Heading H3P. In a circuit for deriving clock pulses from at least three identical pulse generators G, the outputs are combined and fed to a clipping circuit in such a way that the resulting waveform is in phase with a correctly functioning generator when the phase of less than half the full number of generators is incorrect. As shown in Fig. 1, timing signals derived by a head 1 from a common clock track on a magnetic drum are fed via isolating resistors 2, 3, 4 to at least three pulse shaping circuits the outputs of which are combined by resistors 5, 6, 7. It is shown that if the positive and negative peaks of the resulting waveform are appropriately clipped, by means not shown, the phase of the resulting waveform remains correct provided that the phase of no more than half the pulse circuits is incorrect. Fig. 5 shows another arrangement in which four generators 15 . . . 18 are combined by three hybrid transformers HA, HB, HC having balanced secondary windings with dummy loads D1 . . . D3, equal in impedance to the real load, connected to the other side of the secondary winding. This arrangement prevents interaction between serviceable and defective generators but, when all generators are functioning correctly, dissipates no power in the dummy loads D1 . . . D3.
Patent GB-528504-A (GB)
Title: Improvements in automatic traffic controlling apparatus
IPC: G08G1/096
Filed: 1939-07-03
Abstract: 528,504. Road signals for controlling traffic. WALTERS, L. C., and ROSEN, H. July 3, 1939, No. 19276. Convention date, Sept. 28, 1938. [Class 118 (ii)] Relates to automatic traffic-controlling apparatus of the kind in which a pointer, rotating over coloured or marked stationary elements, indicates what time remains before the next change of signal. According to the invention, coloured or marked segments are disposed behind the pointer and each segment is illuminated in turn during the time the pointer is passing over it. A circular dial 1, Fig. 1, is divided into two or more segments which are appropriately coloured and may be suitably worded. The rotating pointer 6 carries and is illuminated by an electric discharge tube 24. The dial consists of plates of glass or other translucent material, and is illuminated from behind by electric lamps 13. The lamps illuminating each segment are switched on in turn, as the pointer rotates, by contacts on an arm that rotates with the spindle of the pointer. The rotation of the pointer may be constant or by impulses, and it may be driven by a synchronous motor or by clockwork.
Patent GB-868074-A (GB)
Title: A new or improved regulating distributor
IPC: F02D1/00
Filed: 1957-06-19
Abstract: 868,074. Adjustable shaft couplings. SCHMIDT, F. A. F. June 19, 1957 [June 20, 1956], No. 19360/57. Class 80 (2). [Also in Groups XXVI and XXVII] A rotary fuel distributer for an internal-combustion engine comprises rotating distributer discs 19, 20, the disc 20 being carried by a shaft 21 angularly adjustable with respect to the shaft of disc 19 under the control of a centrifugal governor 4 and a second control device such as a throttle control. The governor weights 4 are pivotally mounted on a cage 2 which is fixed to an engine-driven shaft 1 and integral with the shaft of disc 19. The weights 4 drive a sleeve 7 which is keyed to a slidable sleeve 9 in screwthreaded connection 22 with shaft 21. As the weights 4 fly out they adjust sleeves 7 and 9 angularly relative to shaft 1 and through the screw thread 22 adjust shaft 22 and disc 20 angularly relative to disc 19. The sleeve 9 is slidable axially by a device 16, actuated from the throttle control, which moves a cam follower 12 co-operating with a cam surface 10 on the sleeve 9, axial movement of which causes, through the screw thread 22, angular rotation of shaft 21 and disc 20 relative to disc 19. In a modification, Figs. 11 and 12, the disc 19 is on a shaft 1a integral with shaft 1 carrying the governor weights 4 and the disc 20 is on a sleeve 48 having a flange 48a driven from the governor weights through a link 44 which has a pin 46 adjustable in a slot 45 in the flange 48a. The end 47 of the link 44 is adjustable by a camshaped member 49 connected to the throttle control mechanism to adjust the position of pin 45 in slot 46 according to load. As speed varies, the weights 4, through the link 44, vary the angular position of shaft 48 relative to disc 19.
Patent GB-918643-A (GB)
Title: Process for preparing ethylene polymers
IPC: C08F10/02
Filed: 1959-06-05
Abstract: Polyethylene is made by polymerizing ethylene in an inert liquid medium at a pressure below 100 atmospheres in the presence of a catalyst formed by reacting a titanium tetrahalide with a dialkyl aluminium hydride, and/or a dialkyl aluminium, halide, and/or a trialkyl aluminium, and containing titanium in both a tetravalent and a trivalent state, the amount of titanium in the tetravalent state being present in a concentration equal to, or higher than 1 milligram atom per litre of the inert liquid. During the polymerization the partial pressure of ethylene is at least 30% of the polymerization pressure.  The catalyst may be preformed or formed in situ.  The liquid medium may be hexane, heptane, cyclohexane, gasoline, kerosine, benzene, toluene, chlorobenzene, or a mixture thereof.  In the examples catalysts made from titanium tetrachloride and di-isobutyl aluminium chloride, and titanium tetrachloride and diisobutyl aluminium hydride, are described.  Specification 918,642 is referred to.
Patent GB-364074-A (GB)
Title: Improvements in systems of mounting the fly-wheel on the shafts of thermic engines, especially of multicylinder explosion engines for propelling land, sea or aerial vehicles
IPC: F16F15/129
Filed: 1930-06-25
Abstract: 364,074. Flywheels. BUGATTI, E., Molsheim, Bas-Rhin, France. June 25, 1930, No. 19383. Convention date, July 4, 1929. Void [Published under Sect. 91 of the Acts]. [Class 122 (i).] In internalcombustion &c. engines, a frictional or viscous connection is arranged between the flywheel and the shaft. Discs on the flywheel fit into discs on the shaft and oil is interposed between them.
Patent GB-1020641-A (GB)
Title: Improvements in or relating to trolleys, bogies and the like for facilitating the handling and movement of articles, and particularly heavy articles
Inventor: JOHNSTONE GEORGE BERNARD
IPC: B65G67/20
Filed: 1963-05-16
Abstract: 1,020,641. Low-lift trucks; loading vehicles. JOLODA TRANSPORT EQUIPMENT Ltd. May 13, 1964 [May 16, 1963], No. 19412/63. Headings B8E and B8H. A lifting trolley similar to that described in Specification 952,051 is provided with means for coupling it to a second trolley the arrangement being such that lowering of the handle 24 of the first trolley raises the load supports of both trolleys. As shown, the first trolley comprises a channel section load support 10 carrying double wedge-shaped cams 15 provided with dwells 15a, a pair of bogies 11, 12 coupled by links 13 and provided with cam engaging rollers 17 and a bell crank lever 21 with a handle 24 for moving the bogies relative to the load support 10 thereby causing the cams to ride up the rollers 17 to raise the support 10. The second trolley 36 is of similar construction and is provided with a coupling member 40, comprising a pair of plates formed with hook-like ends 42, and a coupling plate 43 provided with a stud 44. The coupling member 40 is adapted to engage a pin 38 on the bogie 12 and the stud 44 on the plate 43 is adapted to engage in a hole 39 in the load support 10 of the first trolley. The first trolley is provided with an automatic braking device comprising a lever 27 pivoted to the bell crank lever 21 and adapted, when the load platform 10 is raised, to engage a stop, Figs. 3,9 (not shown) in the path of the trolley thereby causing the load platform 10 to be lowered. The trolley runs in a U-section track 31 recessed into the floor, the arrangement being such that the surface of the load platform 10 in its lowered position is level with the floor surface. The track may be set in the floor of a vehicle.
Patent GB-1177990-A (GB)
Title: Improvements in or relating to Digital-to-Analogue Converters Employing Wall Attachment Effect Devices
Inventor: ROSENBAUM HAROLD MATTHEW
IPC: F15C1/08
Filed: 1967-04-27
Abstract: 1,177,990. Fluid D/A converters. MARCONI CO. Ltd. 20 Feb., 1968 [27 April, 1967], No. 19483/67. Heading G4P. [Also in Division G3] A wall attachment oscillatory device adapted to operate as a digital-to-analogue converter has a fluid supply channel 1, outlets 3, 4, control channels C1-C6, a feedback channel 10 and means for deriving an analogue signal dependent upon the difference in mean pressures of the outlets 3, 4. Communicating with the outlets 3, 4 are respective chambers 5, 6 that are separated by a diaphragm 7 to which is attached a rod 11. The feedback channel 10 causes oscillation, the mark/space ratio of which is varied according to the digital signal on the control channels providing a bias towards the outlet 4 (and consequently chamber 6). The rod 11 moves continuously according to variations in the mean pressure difference between chambers 5, 6 and provides an analogue representation of the digital signals on the control channels.
Patent GB-293832-A (GB)
Title: Improvements in and relating to air renewal arrangements for closed chambers and breathing devices
IPC: A62B7/08
Filed: 1928-07-05
Abstract: 293,832. Hanseatische Apparatebau Ges. vorm. L. von Bremen &. Co., and Deutsche Gold-und Silber-Scheideanstalt vorm. Roessler. July 13, 1927, [Convention date]. Respirators. - In breathing apparatus or closed chambers such as submarine or diving bells in which air to be breathed is enriched with oxygen released by the action on superoxides of exhaled air, additional oxygen is supplied on commencement of use and until the normal oxygen-supplying means is fully functioning. The additional oxygen is generated by the action of a medium such as water on a substance such as anhydrous sodium perborate. As shown in the Figure, a breathing apparatus comprising a cartridge 1 containing alkaline superoxides and having a breathing tube 2 and a mouthpiece 3 is surrounded by a breathing bag 4 containing water 9. A tube 5 extending into the bag 4 is filled with tablets 7 of anhydrous sodium perborate, one or more of which can be transferred into the bag as required. The tube 5 is closed at the top by a removable cap 8 and at the bottom by a cap 6 which is forced off by pressure on the tablets 7. In submarines or diving bells a water-tap, delivering water to a quantity of sodium perborate, may be coupled to the switch of the fan employed in supplying air for ventilating.
Patent GB-1153387-A (GB)
Title: A Method and Means for the Ventilation of a Cylinder Dryer.
IPC: F26B13/08
Filed: 1967-04-27
Abstract: 1,153,387. Drying web material. SVENSKA FLAKTFABRIKEN A.B. 27 April, 1967 [9 June, 1966], No. 19541/67. Heading F4G. In apparatus for drying a paper web 1 passing in sinuous path about heated drier cylinder 2 and held in contact therewith by endless drier fabrics 3, 4 passing over guide rolls 5, the area bounded by web, cylinder and roll is ventilated by hot air projected from nozzles 7, 8 in ducts 6 mounted between each pair of cylinders in a row. The air is blown substantially perpendicularly to the drier fabric across its width from the nozzles, each nozzle 7 being located at a point where the fabric is on the cylinder and each nozzle 8 being lccated where the fabric has left the cylinder but before it reaches the roll 5. In a modification, the duct 6 is divided into two chambers, and a third nozzle is mounted therein to blow air obliquely on to the drier fabric in the direction of travel of the fabric whilst it is on the next succeeding cylinder of the row.
Patent GB-386889-A (GB)
Title: Improvements in or relating to pneumatic hammers and the like
IPC: B25D17/08
Filed: 1932-07-11
Abstract: 386,889. Percussive drills. COLINET, A., Rue du Moulin, Houdeng- Goegnies, Belgium. July 11, 1932, No. 19570. Convention date, Nov. 16, 1931. [Class 124.] A tool-retaining sleeve 4 is screwed on to the front head of a percussive tool 1 and is locked against unscrewing by a rubber ring 3 which is held between a groove 2 in the tool and a recess in the tool-retaining sleeve. In a modification the rubber is engaged by the end of the sleeve in addition to the face of the recess.
Patent GB-596884-A (GB)
Title: Improvements in or relating to pallets for use in making tiles, bricks and the like
IPC: B44C5/04
Filed: 1945-07-31
Abstract: 596,884. Pallets for making tiles &c. CARTER, G. H. July 31, 1945, No. 19619. [Class 87 (ii)] A pallet is provided with anti-friction members such as wheels or rollers, which are arranged to support the pallet as it moves along a support such as a track or rack. Fig. 1 shows the under side of a pallet having intersecting ribs 2, 3, and between the end ribs are journalled wheels 22. The tread of each wheel may be flat or convex. The wheel axes may be disposed not as shown but widthwise of the pallet. The pallet may be made from lightweight alloy, such as aluminium alloy, by die-casting, and the wheels of ferrous metal. Each wheel and its axle may be made in one piece and placed in position when the pallet is being moulded. The sides of each wheel may be slightly conical formation and the treads may be convex or flat.
Patent GB-917723-A (GB)
Title: Production of a solid polycarbonate
IPC: C08G64/40
Filed: 1959-06-09
Abstract: Solid polycarbonate is obtained from an organic solution thereof by first diluting the solution with a non-solvent for the polycarbonate until the cloud-point is reached and then either (1) adding solid polycarbonate together with, if desired, more of the same or a different non-solvent to complete the precipitation or (2) waiting for at least five minutes and then adding further non-solvent to complete the precipitation.  The solid granular polycarbonate may then be separated from the supernatant liquid by centrifugation, filtration, decantation or vapourization of the liquid.  Suitable solvents are partially halogenated aliphatic hydrocarbons containing 1-4 carbon atoms, beta, beta1-dichloroethyl ether, nitroalkanes and light alkyl ethers.  Suitable non-solvents are saturated monohydric aliphatic alcohols, allyl alcohol, dihydric alcohols, aliphatic hydrocarbons containing 5 to 20 carbon atoms, carbon tetrachloride, benzene, dichlorobenzene and trichlorobenzenes.  The polycarbonate may be that of an aliphatic, cycloaliphatic or aromatic dihydroxy compound, the preferred polycarbonate being that of a bis-phenol. In examples, the polycarbonate solutions used were those obtained by phosgenation of bisphenol A in the presence of methylene chloride and aqueous sodium hydroxide solution.
Patent GB-1548356-A (GB)
Title: Projection screen
IPC: G03B21/58
Filed: 1977-05-11
Abstract: The aim of the invention for obliquely positioning a projection screen (1) which can be rolled up and can rotate about a vertical axis is to avoid image distortions on the protection screen when a projector is set up near the projection screen, for example at lectern height. An arm (7) projects rearwards at the upper end of the projection screen (1). A draw wire (9) connected to the arm (7) is suspended in a slider (15), which can be displaced on the lower stressing bar (4), and is fastened to the lower strip (14) of the projection screen (1). <IMAGE>