baber/WOPTO huggingface dataset:
Patent GB-738675-A (GB)
Title: Improvements relating to the production of photographic images and to new chemical compounds for minimising image degradation
IPC: G03C1/35
Filed: 1953-03-05
Abstract: Compounds of the general formula <FORM:0738675/IV (b)/1> wherein R is an alkyl group, M is H, and Z represents the non-metallic atoms necessary to complete a heterocyclic nucleus of the benzthiazole series are prepared by heating together a compound of the general formula <FORM:0738675/IV (b)/2> with an alkali metal salt <FORM:0738675/IV (b)/3> , wherein M1 is an alkali metal, and an amount of acid sufficient to liberate the free acid of the latter compound. Compounds wherein M is an alkali metal atom are obtained by neutralization of the compounds of the first general formula with caustic alkali.  Compounds of the second general formula are obtained by reacting a compound of the general formula <FORM:0738675/IV (b)/4> with maleic anhydride as described in Specification 738,676, compounds of the last-mentioned general formula specified being 2-aminobenzthiazole and its 5- and 6-bromo-, 4-, 6-, and 7-chloro-, 4-, 5-, and 6-methoxy-, 6-ethoxy-, 4-n-butoxy-, 6-iso-butoxy-, and 4- and 6-methyl derivatives.  In example (1), 2-(b -carboxy-a -thiocarbomethoxythiolpropionamido) - benzthiazole is prepared by heating together the 2-aminobenzthiazole salt of 2-(b -carboxyacrylamido)-benzthiazole, potassium methoxydithioformate, and acetic acid. 2-(b -Carboxy-a -thiocarbethoxythiolpropionamido)-benzthiazole, 2-(b -carboxy-a -thiocarbo - n - butoxythiolpropionamido) - benzthiazole, 2 - (b  - carboxy - a  - thiocarbo - n - octoxythiolpropionamido) - benzthiazole, and 6 - ethoxy-2 - (b  - carboxy - a  - thiocarbo - n - butoxythiolpropionamido)-benzthiazole are similarly prepared. Compounds of the general formula <FORM:0738675/IV (b)/5> are prepared by mixing a compound of the general formula <FORM:0738675/IV (b)/6> an alkali metal salt <FORM:0738675/IV (b)/7> and sufficient acid to give the mixture a pH below 7.  In example (5), 2-(b -carboxy-b -thiocarbo - n - butoxythiolpropionamido) - benzthiazole is prepared by dissolving potassium n-butoxydithioformate to a solution of 2-(b -carboxyacrylamido)-benzthiazole in aqueous ammonia and then dripping in acetic acid solution.
Patent GB-227666-A (GB)
Title: Improved manufacture of barium hydroxide or strontium hydroxide
IPC: C01F11/10
Filed: 1924-03-10
Abstract: Barium and strontium hydrates are obtained by treating a solution of the sulphide with ammonia.  Half of the barium or strontium separates as hydrate and may be washed free from sulphide with water containing ammonia.  The rest of the barium or strontium is converted into hydrosulphide, which, after expulsion of the ammonia may be treated with carbon dioxide to recover sulphuretted hydrogen.  To obtain practically all the barium or strontium as hydrate the sulphide is treated with ammonia and caustic alkali.
Patent GB-1031552-A (GB)
Title: An arrangement for creating bioclimatic conditions in rooms
IPC: A61N1/10
Filed: 1965-02-12
Abstract: A bio-climatic condition is created in a room by an electrode system at a high negative D.C. potential, the system being arranged within or on the floor, and optionally also in furniture. As in Figure 1 (not shown), the system comprises electrode plates 14 lying between the floor 12 and an insulating synthetic plastic floor lining 16, and also electrodes 24 in the furniture maintained at a less negative potential than the floor electrodes. The floor electrodes may alternatively be embedded in the floor covering and may extend only over those areas of the floor not covered by furniture.  The D.C. potential is obtained from the mains supply through a transformer and a control device may be provided within the room to regulate the field produced.
Patent GB-692595-A (GB)
Title: Improvements in clocks
IPC: G04B45/04
Filed: 1951-03-15
Abstract: 692,595. Clocks. ETABLISSEMENTS E. JAEGER. March 15, 1951 [March 29, 1950], No. 6295/51. Class 139. A clock in which the conventional hands are replaced by movable transparent discs each of which bears a distinguishing mark or index is characterized in that each disc is journaled for loose rotation about a corresponding driving pivot, being only rotatably connected with said pivot by means of at least one pin eccentrically situated near the centre of the disc, the peripheral edge of said disc running freely in an annular groove formed in the clock framing. The casing back 1, Fig. 1, has a flanged edge 4 which abuts the edge of a plate 6, the back 1 and plate 6 being held by screws 11 in a ring member 3. The "minutes" disc 17, Figs. 1 and 3, bearing an index 21 is driven by the clockwork 2 through a driving member 15 mounted on a sleeve 13 and having a pin 15a which engages in a hole 16 in the disc 17. The "hours" disc 26, Figs. 1 and 4, having an index 20 is driven through a driving pivot member 25 mounted on the hub of the hour wheel and having two pins which engage notches 28, Fig. 4, in the disc 26. The peripheral edges of the discs 17, 26 run in grooves 19 and 9, Fig. 1, respectively in the ring 3..A transparent disc 31, Figs. 1 and 2, is held in a recess 32 in the ring 3 by a ring 33 bearing the dial markings. The plate 6 and the discs 17, 26 and 31 are spangled with stars and have concentric circles 6a, 20, 29 and 35 marked thereon and the disc 31 has at its centre an opaque mask 36, Fig. 5. The ring 3 is fixed to a base 10, Fig. 1, by screws 12.
Patent GB-596317-A (GB)
Title: Process for preserving wood
IPC: B27K3/02
Filed: 1945-03-14
Abstract: 596,317. Preserving wood. OSMOSE WOOD PRESERVING CO. OF AMERICA, Inc. March 14, 1945, No. 6354. Convention date, Aug. 4, 1944. [Class 140] Case-hardened or semi-dried wood of non- uniform moisture content is subjected to heat and moisture to soften it and render the moisture content uniform, maintained in such condition and immersed in a substantial volume of a relatively cold saturated aqueous solution of a wood preservative having a solubility of from 1 to 15 g. per 100 c.c. water at 20‹ C., the solution being kept saturated by excess of undissolved preservative. Hot water or wet steam under pressure is usually employed for the first step. Preservatives specified are boric acid, cadmium cyanide, cupric borate, cupric acetate, cupric fluoride or tartrate, lead cyanide, mercuric chloride, mercuric cyanide, potassium meta-arsenite, potassium permanganate, sodium fluoride, sodium oxalate or acid oxalate, zinc fluoride, trimethyl arsine, phenyl mercuric acetate, methyl boric acid, nitrophenyl boric acid, picric acid, phenol, p-chlorophenol, m-cresol, (2, 4) cresotic acid and omethyl phenol. Aqueous tacky pastes may thereafter be coated on the treated wood. The drying may be retarded by enclosing the wet wood in a waterproof air-tight covering.
Patent GB-1076656-A (GB)
Title: Method for processing aluminum-containing nuclear fuels
IPC: C22B60/02
Filed: 1965-02-15
Abstract: Uranium hexafluoride is recovered from aluminium-containing spent nuclear fuel by dissolving the fuel in a KF-ZrF4 molten salt at not above 658 DEG  C. while passing anhydrous HF through the melt (see Division G6), and then passing fluorine gas through the melt at 575 DEG  C. to volatilize UF6 which is cooled to 100 DEG  C. and adsorbed on a bed of NaF; further purification from fission products is carried out by heating the bed to 400 DEG  C. and condensing volatilized UF6.
Patent GB-575792-A (GB)
Title: Improvements in overspeed preventing mechanism for electric motors
IPC: H01H35/10
Filed: 1944-04-05
Abstract: 575,792. Centrifugal switches. JACK, & HEINTZ. Inc. April 5, 1944, No. 6378. Convention date, Feb. 18, 1943. [Class 38 (v)] An overspeed preventing mechanism for a rotating shaft coinprises a governor plunger extended from its rest position by overspeeding of the shaft and a circuit breaker controlling the power supply for the shaft. The breaker consists of a pair of spaced contacts 23, a plunger 25 carrying a bridging contact 24 and held in the bridging position by a lever 32. On overspeeding, the governor plunger 12 moves outwardly and causes the lever to move away from the switch plunger, which is moved by the snap action of spring 30 and breaks the circuit. The breaker can be reset by hand bv depressing the extension 28 when the motor has slowed down.
Patent GB-849993-A (GB)
Title: Improvements in or relating to circuit breakers
IPC: H01H33/915
Filed: 1958-02-27
Abstract: 849,993. Oil - blast switches; airbreak switches; automatic circuit-breakers; hydraulic actuation of switches. LEVEL, B. P. E. Feb. 27, 1958 [March 1, 1957 (2) Aug. 3, 1957], No. 6440/58. Class 38 (5). An oil-blast switch has one end of a tubular moving contact 1 and a tubular fixed contact 2 in an oil-filled chamber 7 which is normally closed by a valve 8, the other end of the contact 1 extending into a further oil-filled chamber 12 and the intermediate portion of the contact 1 being coupled to actuating means. When the contact 1, Fig. 1, is moved to open the contacts, oil displaced from the chamber 12 opens an insulating valve 5 against spring bias and the valve 5 then acts to deflect the displaced oil across the arc drawn between contacts 1, 2. In Fig. 5, the oil displaced from the chamber 12 issues through slots in an insulating tube 24 interposed between the contact 1 and an arcing contact 25. In this case, the arc may have two serially-related parts rooted on the contact 1 and arcing contacts 25, 3. Several slotted insulating tubes may be provided, Fig. 4 (not shown). Also, in Fig. 5 the contact 1 is opened by springs 63 when a latch 64 is released by electromagnetic or hydraulic means. When the contact 1 is open, a spring-biased normally-open valve 60 abuts the base of the chamber 12 and is closed so that oil under pressure from a reservoir 62a may be used to reclose the contacts, the valve 60 reopening only when the oil pressure is released. In a combined oil-blast circuit-breaker and airbreak isolating switch, Fig. 7, the oil-blast circuit-breaker of Fig. 5 is pivoted at 107 and carries the moving isolating contact 110. Both the circuit-breaker and switch are maintained closed by an overset toggle 111a, 111b against the action of springs 63, 105. When the toggle is broken by an hydraulic tripping device 118, the spring 63 opens the circuit-breaker contacts and the spring 115 is then able to turn the circuitbreaker to open the isolating contacts 110, 103. To reclose the circuit-breaker and switch, oil under pressure is applied to the chamber 12 to close the circuit-breaker contacts and fully extend the springs 63 and the toggle. Then, when the pressure is released from the chamber 12, the springs 63 contract slightly and apply a closing force greater than the opening force of the spring 115 so that the circuit-breaker is turned into the position in which the isolating contacts are closed. In a modified arrangement, Figs. 8 to 10 (not shown) a single spring 63 may be coiled around the circuit-breaker casing and the contacts may be held closed by a telescopic link which may be released by a bellows acting on a ball latch, the bellows being operated when a spring biased oil pump is released by an electromagnetic overload-responsive latch. The spring biasing this pump may be stressed by a double-acting hydraulic jack, the cylinder of which provides an expansion chamber of limited volume for the oil displaced from the chamber 12 as the isolating contacts close.
Patent GB-1298716-A (GB)
Title: Laser multicolor television display apparatus
Inventor: STANIS GUS
IPC: H04N9/31
Filed: 1970-02-11
Abstract: 1298716 Optical apparatus SINGER CO 11 Feb 1970 6641/70 Heading G2J [Also in Division H4] An optical scanning device comprises a rotatable drum 33 having a plurality of contiguous coherent optical fibre bundles 44 fixed to the rim of the drum generally parallel to the drum's rotation axis 38, each bundle 44 being twisted through 180 degrees about its longitudinal axis between its input and output ends. The device is described with particular reference to producing a colour (or monochrome) television display, but mention is made of its use in telegraphy, facsimile and radar. Red green and blue beams, obtained from lenses 10,17 and prism 13, are intensity modulated 30-32 by the corresponding signals from a conventional television receiver 25, and are focused 34-36 to a common fixed point 33 of diameter less than the diameter of individual fibres in each bundle 44. Thus as the drum rotates in the direction 43, Fig.3, when points A or B and 33 coincide, light leaves at A' or B' respectively i.e. displacement of each bundle 44 by W results in a scan of 2W in the direction 44 before flyback to the commencement of the next scan. Vertical scanning is achieved by displacing the output ends of the bundles successively further from the axis 38 while keeping the spacing of the input ends from the axis 38 instant. Two series of such displacements each about half the drum provide line interlace. Alternatively, Fig.7  (not shown), each identical half of the drum has a constant cross-section corresponding to part of a Archimedean spiral so that successive bundles are truly parallel to the axis 38 but are variably spaced therefrom. In this embodiment, the twisting of the bundles through 180 degrees provides the doubled vertical scan effort in addition to that obtained with the horizontal scan. Slight randomners in the positions of the individual fibres (<" 2 ) causes the ruster lines to merge. Rotation of the drum is synchronized 52, 53, 54 with sync. signals from the receiver 25. Details of the mounting of the bundles on the drum are described with reference to Figs. 5,6,8 and 9 (not shown), being accomplished by accurately machining the drum e.g. with a toothed edge to accommodate corresponding hexagonal bundles, or by individual adjustment in brackets followed by embedding in spring insert.
Patent GB-589178-A (GB)
Title: Improvements in or relating to gas-turbine plants
IPC: F02C7/36
Filed: 1945-03-16
Abstract: 589,178. Gas turbines. SULXER FRERES SOC. ANON. March 16, 1945, No. 6688. Convention date, March 18, 1944. [Class 110 (iii)] In a gas turbine plant in which power gas is generated in a combustion chamber fed with air by a turbine-compressor combination working in a closed circuit and is led to a power turbine exhausting to the atmosphere, the power generated by the power turbine is varied by varying the basic pressure in the closed circuit. For high load that basic pressure is the delivery pressure of a make-up compressor taking in air at atmospheric pressure and for low load the intake air is at a pressure reduced by extracting energy from the air in a useful power turbine. The power gas generator comprises compressors 1, 3, surface heater 8, turbine 10 and heatexchanger 4. Part of the air compressed passes to a burner 14 of the heater 8 and the products of combustion drive a power turbine 16 geared to a ship's propeller 24. For high load, a make-up compressor 19 takes in atmospheric air at 33. For low load, the air is taken in at 26, heated by the exhaust of the main power turbine 16 in an exchanger 17, caused to do useful work in an air turbine 25 and then passes through a cooler 28 to the make-up compressor 19. The air turbine is driven through a hydraulic or other coupling 29. A starting motor 21 may be used also to assist the turbine 10. Specification 574,921 is referred to.
Patent GB-1453480-A (GB)
Title: Catalysts for the cathodic evoluation of hydrogen
IPC: C25B11/04
Filed: 1974-02-14
Abstract: 1453480 Boride electrodes DEUTSCHE AUTOMOBIL GmbH 14 Feb 1974 [17 Feb 1973] 6772/74 Heading B1E [Also in Divisions C1, C7 and H1] X-ray amorphous iron, cobalt or nickel boride precipitates or surfaces for use as catalysts for the cathodic evolution of hydrogen in an alkaline electrolyte are formed by slow precipitation of Fe, Ni or Co ions from aqueous solution in the presence of a complexing agent for the metal ion by reaction with a water soluble boranate or borazane, e.g. sodium borohydride or an amino-borane, at a temperature below 60‹C at a concentration of free metal ions below 10<SP>-10</SP> mole/litre. The borides are deposited directly onto a carrier framework of metallic or non-metallic material to form electrodes. The complexing agent for the metal ion may be ammonia, ethylenediamine, tartrate or citrate.
Patent GB-112373-A (GB)
Title: Improvements relating to Padlocks.
Inventor: VAUGHAN CHARLES FREDERIC
IPC: E05B67/06
Filed: 1917-05-12
Abstract: 112,373. Vaughan, C. F. May 12, 1917. Padlocks.-To enable a padlock to be mounted in an upside down position to prevent the entry of rain, it is provided with a supporting-member which extends from the padlock to the hasp, and is adapted to be passed through the staple to which the padlock is to be secured. In the arrangement shown in Fig. 1, the supporting-member comprises centrally disposed tongues a integral with the front and back plates of the padlock, a projection c on the hasp d passing between the tongues when the hasp is closed. In a modification, the tongues are curved so that they may enclose the projection c. Alternatively, the tongues a or projection c may be used alone.
Patent GB-212947-A (GB)
Title: Improvements in furniture braces
IPC: F16B7/06
Filed: 1924-03-17
Abstract: 212,947. Wittliff, T. H. March 16, 1923, [Convention date]. Wire strainers.-A bracing system for bedsteads &c. comprises cables 11, 15, 19, 18, 18<1> secured to the uprights 3 and to the end and side rails 1, 2 and passing. around the yokes 5 of a turnbuckle 7. Each yoke comprises a grooved portion 4 and a threaded shank 6 lying in a plane below and parallel with the plane of the groove, while in the modifications shown in Fig. 7 the angle between the grooved arms 42 of the yoke is adjustable. Helical springs 21 may be provided on the ends of the cables and may engage hooks on the members 1, 2, and 3.
Patent GB-540453-A (GB)
Title: Improvements in or relating to mechanism for the transmission of power
IPC: F16H57/028
Filed: 1940-04-16
Abstract: 540,453. Pumps; screw fans. SULZER FRERES SOC. ANON. April 16, 1940, No. 6849. Convention date, April 21, 1939. [Class 7 (ii)] [Also in Group XXVI] Mechanism for the transmission of power from a reciprocating engine, e.g., an internal-combustion engine, to a rotary blower 2, Fig. 1, or other rotary apparatus comprises a torsionally elastic shaft 11 disposed within a hollow shaft 6, the shafts lying alongside the engine, and being supported at their connected ends by a bearing 9 mounted on the engine casing. The hollow shaft 6 may also be torsionally elastic. A gear-wheel 4 on the crank-shaft 3 of the engine meshes with a pinion 5 on the hollow shaft, and the inner shaft transmits the power through a friction coupling 12 to a gear 13 meshing with a pinion 14 on the shaft of the blower. The friction coupling comprises segments 16, Fig. 2, pressed outwards by springs against the interior of a drum 19 attached to the gear 13. The drum may be connected to the gear through a yielding coupling comprising springs 21 located between radial projections on the drum 19 and on an outer drum 23 fixed to the gear 13.
Patent GB-1011561-A (GB)
Title: Improvements in or relating to a method of producing rubber or rubber-coated articles
IPC: B29C41/14
Filed: 1962-02-22
Abstract: Fabric-lined rubber gloves are made by a process which comprises providing a former with a fabric liner, dipping the lined former into an alkaline latex bath containing rubber latex mixed with a water-soluble amino resin complex to coat the former with the contents of the bath and thereafter drying and curing the coating so formed.  The bath may contain thickening agents, e.g. polyvinyl alcohol, carboxymethyl cellulose or casein, and emulsifying agents. A plurality of coatings which may be the same or different may be applied.
Patent GB-1013887-A (GB)
Title: Process for the production of highly pure zirconium or hafnium
IPC: C22B34/14
Filed: 1963-02-20
Abstract: A process for the production of highly pure Zr or Hf comprises (1) forming the alkali metal halozirconate or halohafnate by reaction of the appropriate tetrachloride with an alkali metal halide, and (2) separately reacting this product with a liquid reducing metal (e.g. Mg, Na or Mg 20% Na 80%) in an inert atmosphere and in such component quantities that there is no substantial rise in the reaction temperature due to the heat of reaction being liberated.  The reactants for the second stage are preferably both in the molten state and the reaction temperature preferably not allowed to rise above 900  DEG C.  The temperature may be controlled by adding separate component quantities at intervals of time or slowly adding them continuously.  Specification 938,969 is referred to.
Patent GB-553891-A (GB)
Title: Improvements in or relating to means for extracting dust from crushed coal
IPC: B07B4/08
Filed: 1942-05-22
Abstract: 553,891. Sifting-apparatus. LEWIS, W. H. May 22 1942, No. 6991. [Class 117] Apparatus for extracting dust from crushed coal comprises two concentric screens 1, 2, the inner of which has a large mesh relatively to the outer, and perforated pipes 8 provided alongside and below the axis of the outer screen whereby steam or air is blown through the screen to prevent dust escaping with the small coal. The two grades of coal retained by the screens are delivered either into separate bins or a common bin, and the dust is blown into the atmosphere or collected by a fan and container. The small coal passing through both screens is delivered to a bunker under the screens. The inner screen is supported from the shaft 13 by arms 14, and the outer screen is supported from the inner by arms 12. The combined screen is supported on rollers 4 preferably so as to incline from the charging end downwards to the open delivery end.
Patent GB-307498-A (GB)
Title: Rotary compressor, pump or the like
IPC: F04C29/00
Filed: 1929-03-04
Abstract: 307,498. Patiag Patentverwertungs-und Industrie Akt.-Ges. March 9, 1928, [Convention date]. Movable-abutment type; packing drums, vanes, abutments, and the like; driving pumps.-A rotary compressor or the like comprises two camshaped pistons 5, 9, without recesses, which are rotated together by gear wheels 14, 15 constituting a gear pump for delivering liquid to a nozzle 18 to supply sealing liquid adjacent the contact line of the pistons. The pistons have a small clearance with each other and with the lateral walls of the casing. The gear pump also feeds a chamber 20 whence liquid passes through bores 22, 23 in the piston shafts and transverse bores 22<a>, 23<a> to seal the lateral faces of the pistons 5, 9. A separator returns the liquid from the discharge side of the compressor to the gear pump. The compressor is driven from a shaft 10 through gears 11, 12, the latter being fixed on the shaft of the piston 9.
Patent GB-357069-A (GB)
Title: Improvements in and relating to electrically driven hydraulic pressure-producing apparatus
IPC: B21J9/12
Filed: 1931-03-06
Abstract: 357,069. Hydraulic presses. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) March 6, 1931, No. 7050. Convention date, March 7, 1930. [Class 69 (ii).] Pressure - producing apparatus for a hydraulic press comprises a rack a, driven from an electric motor b, and having at its opposite ends plungers c, g for forcing liquid at high and low pressures respectively. The lowpressure plunger is of greater diameter, and the low-pressure line has a storage reservoir l and a byepass m. The Specification as open to inspection under Sect. 91 (3) (a) comprises separate racks operated from one motor for operating the plungers. This subject-matter does not appear in the Specification as accepted.