baber/WOPTO huggingface dataset:
Patent GB-959046-A (GB)
Title: Improvements in or relating to level indicating systems
IPC: G01F23/26
Filed: 1961-10-30
Abstract: 959,046. Determining liquid levels. D.C. ATKINSON. Oct.30, 1961 [Nov.10, 1960], No. 3880/61. Heading G1N. In an arrangement wherein an electrode 21, Fig. 4, is lowered into a conductive tank 11 containing fluent material to determine capacitivity, or resistivity by contact with the upper surface of the material, the level of such material, a guard electrode 24 is provided between the electrode 21 and the tank 11 and is energized by an amplifier having a high input impedance, a relatively low output impedance and a gain substantially equal to but less than unity, which is fed with the potential of the measuring electrode to maintain substantially equal potentials on the two electrodes and thus annul the effects of leakage paths. Alternative electrode and guard shield arrangements including metal deposits on selected areas of an insulating sleeve, a shield extending outwardly from the probe, and chain linked insulators in which leakage paths over the insulators are interrupted by the metal coupling loops are described with reference to Figs. 6-9, (not shown) Reference has been directed by the Comptroller to Specification 815,449.
Patent GB-820382-A (GB)
Title: Method of testing the internal quality of eggs in shell
Inventor: LOWRIE ARTHUR BRUCE
IPC: G01N33/08
Filed: 1956-12-24
Abstract: 820,382. Egg testing. LOWRIE & CO. Ltd., J. Dec. 23, 1957 [Dec. 24, 1956; Feb. 9, 1957], Nos. 39164/56 and 4501/57. Class 28 (2). Eggs on a roller conveyer 11 are passed over a candling apparatus 12 and are examined through a long magnifying lens or at a magnifying mirror. A cut-away 19 in the casing 10 allows hand access to the eggs. Tunnels 22 at each end of openings 14 or 21 cut off surplus light. The conveyer 11 turns over the eggs automatically. The lens may be a hollow glass filled with liquid, and is adjustable to and from the conveyer 11. The lens &c. is adjustable angularly about a horizontal axis. The conveyer speed may be adjusted.
Patent GB-1306665-A (GB)
Title: Electrophotographic recording element and method of charging same
IPC: G03G15/02
Filed: 1971-08-20
Abstract: 1306665 Electrostatic charging process RCA CORPORATION 20 Aug 1971 [31 Aug 1970] 39182/71 Heading G2H [Also in Division H1] A uniform electrostatic charge is produced on an electro-photographic element comprising a layer of photo-conductive pyroelectric material by heating or cooling the layer. In a preferred embodiment a plate 32 of Al, Cu or stainless steel has joined thereto by solder or conductive paste 36, a plurality 28 of monocrystalline ZnO wafers doped with Cu or Li oriented with the c-axis normal to the plate 32. Wafers of hexagonal, rectangular or square shape may be used. The element may be warmed by heater 42 or cooled by jets 47 to produce the temperature change. Once charged the element may be imagewise exposed, developed &c. in a conventional manner. Peltier elements may be used to effect cooling. The temperature change is preferably between 5 and 30‹C. and the voltage developed is proportional to the wafer thickness.
Patent GB-1189457-A (GB)
Title: Pressure Vessel Testing
Inventor: HALL WILLIAM RANDOLPH
IPC: G01M3/22
Filed: 1967-08-25
Abstract: 1,189,457. Indicating leakages in pressure vessels. GENERAL MOTORS Ltd. Aug. 22, 1968 [Aug. 25, 1967], No. 39214/67. Heading G1S. A pressure vessel to be tested e. g. a compression type refrigerator system is placed in the space 1 of an armoured chamber and subjected to the passage therearound of air circulated through ducts 3 and 4 by a fan 2. The vessel has previously been charged with air or nitrogen at 550 p. s.i.g. containing a tracer element (gas) such as a halogenated refrigerant so that any escape of the tracer is picked up by the circulating outer air and indicated by a detector 5. Further testing of the vessel at an internal lower pressure say 150 p.s.i.g. and under water would locate the leak. The detector could be a sensing gun based on the chemical breakdown of halogenated refrigerants with heat or a "flame type" leak detector or an electronic amplifying device.
Patent GB-1497948-A (GB)
Title: Devices for clamping and holding electric cord
IPC: H01M10/658
Filed: 1975-09-25
Abstract: 1497948 Cable grips NIFCO Inc 25 Sept 1975 [26 Sept 1974] 39215/75 Headings E2A and E2B  A cable grip comprises two L-shaped parts 1, 2, each part having an inner flat face which can engage a corresponding flat face of the other part, and an L-shaped groove 6, 7 in its flat face, the parts being interconnected by a hinge 3 along one leg of each part, the other leg being formed with an outer raised catch portion 13, 14. When the flat faces mate (and are optionally held by integral catches 12 and detents 11) the grooves register to form a channel 8 for an electrical cable 10, and the catch portions 13, 14 in use grip the surrounds of a hole 15 in an electrical article 9.
Patent GB-369670-A (GB)
Title: Improvements in and relating to apparatus for cooling and solidifying carbon dioxide
IPC: C01B32/55
Filed: 1930-12-31
Abstract: 369,670. Lids and covers for resisting fluid pressure. CARBON DIOXIDE CO., Ltd., 11, Dale Street, Liverpool, and SUTCLIFFE, :E. R., Sandfield Hall, Newton-le- Willows, Lancashire. Dec. 31, 1930, No. 39300. [Class 123 (i).] A lid 51 hinged at 54 is provided with a lug 53 engaging a catch 52 pivoted upon an eccentric pin 57 rotated by a handle 58. A stop is provided on the container to limit the movement of the handle 58 and the catch is locked by reason of its eccentricity. Specification 345,229, [Group XXVIII], is referred to.
Patent GB-1015849-A (GB)
Title: Plasticised alkoxylated polyvinyl alcohol compositions
Inventor: GORDON PHILIP LEON
IPC: C08F8/00
Filed: 1964-09-28
Abstract: Compositions comprise a water - soluble alkoxylated polyvinyl alcohol and 1 to 10 weight per cent of a plasticizer therefor which is a water-soluble partial ester of a C12- 20 aliphatic monocarboxylic acid with a polyhydric alcohol, the partial ester having been condensed with 5 to 30 moles of a C2- 4 alkylene oxide per mole of the ester.  The polyvinyl alcohol may be a polyvinyl acetate partially or completely hydrolysed and reacted with a C2- 4 alkylene oxide in the presence of ammonia, alkylamines or alkanolamines.  The plasticizer may be derived from lauric, palmitic, oleic and stearic acids; ethylene glycol, glycerol, pentaerythritol, sorbitol and sorbitan; and ethylene, propylene or butylene oxide.  The polyvinyl alcohol may be alkoxylated in the presence of the plasticizers, e.g. in suspension in a non-solvent such as hexane.  The compositions may be dissolved in water and used to cast films, e.g. for packaging detergents.  In examples (1) polyvinyl alcohol is alkoxylated with ethylene oxide in the presence of ammonia and triethanolamine, and the product dissolved in water containing (2) ethoxylated sorbitan monolaurate and (3) the ethoxylated monolaurate, monopalmitate, mono-oleate and monostearate of ethylene glycol, glycerol, pentaerythritol, sorbitol and sorbitan; and (6) polyvinyl alcohol is alkoxylated with ethylene oxide in suspension in hexane in the presence of ammonia and ethoxylated sorbitan monolaurate.
Patent GB-891981-A (GB)
Title: Improvements in and relating to radial flow impellers for centrifugal pumps or fans
IPC: F04D29/28
Filed: 1960-11-17
Abstract: 891,981. Centrifugal pumps and fans. KONINKLIJKE MACHINEFABRIEK GEB. STORK & CO. N.V. Nov. 17, 1960 [Dec. 24, 1959], No. 39492/60. Class 110 (1). An impeller for a centrifugal pump or fan comprises aerofoil blades, each comprising a part 5 rigidly connected to the two side discs of the impeller, and a pivotal part 6. Each pivotal part 6 is provided with two projections 7, each resting in a cup 8 secured to the adjacent side disc, the radius of curvature of the cup being greater than that of the projection in the region of contact so that the projection rolls in the cup without sliding, whereby pivoting of the part 6 occurs with rolling friction only. Alternatively, a knife-edge pivot may be used. The pivotal movement is limited by abutments 9, 10 on each side disc. Centrifugal force tends to bring the part 6 against the abutments 10, and it can be moved from this position to the desired extent by supplying air under pressure to a bellows 13 which extends over the whole width of the blade between extensions 11, 12 of the parts 6, 5. Air for this purpose is supplied through the hollow shaft of the impeller and thence through pipes to the bellows.
Patent GB-1329001-A (GB)
Title: Process for reusing thermoplastic matrices
IPC: B41C3/06
Filed: 1970-08-18
Abstract: 1329001 Re-usable matrices UNION CARBIDE CORP 18 Aug 1970 [19 Aug 1969] 39639/70 Heading B5A A thermoplastic matrix having a negative pattern embossed thereon is reused to form a second matrix by placing it with a thermoplastic overlay sheet in a mould in contact with a positive matrix pattern and applying sufficient heat and pressure thereto to form a second matrix having a second negative pattern embossed thereon, the overlay sheet being an integral part thereof and the first negative pattern being obliterated. The matrix material is preferably a polyarylene polyether. The matrices may be used for moulding sound records, printing plates, &c.
Patent GB-1444080-A (GB)
Title: Brushtype seal assemblies
IPC: F16J15/34
Filed: 1973-09-11
Abstract: 1444080 Sliding seals SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 11 Sept 1973 [9 April 1973] 39797/75 Divided out of 1441000 Addition to 1427095 Heading F2B A sealing arrangement as claimed in Specification 1,427095, is applied to a lip seal arrangement. A shaft 8 may bear a seal ring 52 within a casing 53 having an outer portion 54 for co-operation with the fibre coating 10 on a partition member 9.
Patent GB-1356822-A (GB)
Title: Electromechanical delay line with continuously adjustable delay
IPC: H03H9/42
Filed: 1971-08-26
Abstract: 1356822 Variable delay lines THOMSONCSF 26 Aug 1971 [27 Aug 1970] 40205/71 Heading H3U [Also in Division H1] The delay time of an acoustic surface wave delay line comprising, mounted on a piezoelectric substrate 1, input transducer 2, 3 and output transducer 4, 5, 7 is substantially continuously variable since the electrical interconnection between at least one of electrodes 5 and electrode 7 is provided by means of semi-conducting cadmium sulphide coupling layer 6 which conducts only in the region, adjustable longitudinally in portion since light source 8 is rotatably mounted, irradiated by beam 9. A large number of electrodes 5 are provided to provide the continuous variation of delay time, the precise number coupled to electrode 7 being determined to provide impedance matching. The rotatable beam 9 may be replaced by a mask with a window, which slides over layer 6. The roles of input and output transducers may be reversed, and both input and output transducers may have the form of the assembly 4-9. The coupling layer 6, Fig. 3, partially covers electrodes 5 and 7, and is overlaid by transparent tin oxide layer 10 directly coupled to electrode 7 to provide a low conductivity coupling. Alternatively, Fig. 2 (not shown) the layer (6) covers electrode 7, partially covering electrodes (5), the tin oxide layer being omitted.
Patent GB-963418-A (GB)
Title: Phosphorinanones and methods of preparing same
IPC: C07F9/6568
Filed: 1962-10-25
Abstract: The invention comprises 4-phosphorinanones of formula: <FORM:0963418/C1/1> wherein R is a substituted or unsubstituted, branched or straight chain alkyl radical having from 1 to 18 carbon atoms, a substituted or unsubstituted cycloalkyl radical, or a substituted or unsubstituted aryl radical; each of R1, R2, R3\h and R4 is one of the following; a hydrogen atom, a C1- 6 alkyl, phenyl, chloro-substituted phenyl, (C1- 6)-alkyl-substituted phenyl, or alkoxyalkyl radical of which the alkyl and alkoxy radicals contain from 1 to 6 carbon atoms; and each of R5 and R6 is a hydrogen atom or an alkyl radical containing from 1 to 6 carbon atoms: with the proviso that R1 to R6 are not all hydrogen atoms. They are prepared by reacting a divinyl ketone of formula: <FORM:0963418/C1/2> with a primary phosphine RPH2, e.g. at 80-200 DEG C. Suitable substituents for R when alkyl include alkoxy, phenyl and cyano and when aryl, halogen. The products may be used as gasoline additives (see Division C5).ALSO:Gasoline compositions comprise 4-phosphorinanones of formula <FORM:0963418/C4-C5/1> wherein R is a substituted or unsubstituted, branched or straight chain alkyl radical having from 1 to 18 carbon atoms, a substituted or unsubstituted cycloalkyl radical, or a substituted or unsubstituted aryl radical; each of R1, R2, R3 and R4 is one of the following: a hydrogen atom, a C1- 6 alkyl, phenyl, chloro-substituted phenyl, (C1- 6) - alkyl - substituted phenyl, or alkoxyalkyl radical of which the alkyl and alkoxy radicals contain from 1 to 6 carbon atoms; and each of R5 and R6 is a hydrogen atom or an alkyl radical containing from 1 to 6 carbon atoms: with the proviso that R1 to R6 are not all hydrogen atoms. (For preparation see Division C2.)  Up to about 10 ml. or mg. of phosphorinanone may be used per gallon.
Patent GB-968772-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B1/04
Filed: 1962-10-25
Abstract: 968,772. I.C. engines construction. DAIMLER BENZ A.G. Oct. 25, 1962 [Nov. 11, 1961], No. 40488/62. Heading FIB. In a multicylinder I.C. engine, each cylinder head inlet passage 7, Fig. 1, winds spirally with decreasing crosssectional area around the valve guide and the inlet and outlet valves for each cylinder are disposed in staggered formation on respective sides of a vertical plane 14 containing the cylinder axes and their respective inlet and outlet passages 7, 9 extend laterally away from the plane. In another embodiment some of the exhaust passages 9 and inlet passages 7 are arranged in pairs. A double-walled induction manifold may be arranged so that the jacket is connected to a short-circuit pipe which by-passes the engine radiator under control of a 2-valve thermostat to give intensive heating of the induction manifold at cold engine starting.
Patent GB-1498751-A (GB)
Title: Agents for regulating plant growth
IPC: C07D295/03
Filed: 1975-10-03
Abstract: 1498751 Plant growth regulant BAYER AG 3 Oct 1975 [9 Oct 1974] 40586/75 Heading C1B A plant-growth-regulating composition contains as active ingredient at least one piperazine derivative of the general formula in which R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP>, independently of one another, are each optionally substituted alkyl, optionally substituted alkenyl, alkynyl, cycloalkyl or aralkyl which is optionally substituted in the aryl part, and n is 0, 1, 2, 3 or 4, in admixture with a solid or liquefied gaseous diluent or carrier or in admixture with a liquid diluent or carrier containing a surface-active agent. The composition preferably contains 0À00005-2% of the compound. The compound may be added to plants, alone or as the composition, in an amount of 0À01-50 kg/hectare.
Patent GB-1498472-A (GB)
Title: Formation fracturing with stable foam
IPC: E21B43/26
Filed: 1975-10-06
Abstract: 1498472 Fracturing underground formations DOW CHEMICAL CO and SCIENTIFIC SOFTWARE CORP 6 Oct 1975 [17 Oct 1974] 40800/75 Heading E1F A stable foam comprising a mixed dispersion of a liquid base, a surfactant, a propping agent and a gas is injected into a subterranean formation to initially fracture the formation or to extend a fracture in the formation, the foam having a Mitchell quality as derived by the formula ftp=Vsg/Vf, where #tp is the Mitchell quality, Vsg is the volume of saturated gas and Vf is the volume of foam, at the temperature and the breakdown pressure of the formation or the fracture extension pressure of the formation of between 0.5236 and 0.9999. Preferably the liquid base is oil, water or an acid, the gas is air, nitrogen, carbon dioxide or hydrocarbons, the surfactant is an anionic, cationic or non- ionic surfactant, and the propping agent is sand, glass beads, aluminium pellets &c walnut shells. Other formation treating agents may be included e.g. KCL, hydroxy alumina, iron chelating agents, HCL, HF, CH 3 COOH, non- emulsifying agents, gels, or active gaseous materials (CO 2 , Cl 2  or O 2 ).
Patent GB-968898-A (GB)
Title: Improvements in and relating to disc brakes
Inventor: DENSHAM JOHN RICHARD
IPC: F16D55/00
Filed: 1961-11-15
Abstract: 968,898. Disc brakes. AUTOMOTIVE PRODUCTS CO. Ltd. Nov. 8, 1962 [Nov. 15, 1961], No. 40894/61. Heading F2E. In a disc brake of the kind in which fluid pressure means is associated, with a movable member for applying a pad or pads to one side of a disc directly and a pad or pads to the other side of the disc by reaction force acting through the member, the fluid pressure means comprises a fixed cylinder having two pistons urged in opposite directions by the admission of pressure fluid to the cylinder, one piston acting directly on one pad and the other acting on a U-shaped member slidable on a U-shaped support and straddling the disc so that it applies the other pad. As shown, the U-shaped member 5 is slidable on a support 1 composed of a generally U-shaped structure providing a slide surface for the member 5, a cylindrical part 2 providing a pressure chamber 12 between pistons 3, 4, and upwardly extending limbs 15 which engage the longitudinal edges of member 5 to guide the latter. Springs 19 are pressed against the upper surface of member 5 by removable pins 20 fitted between the limbs 15, whereby member 5 and the friction pads 13, 14 can be removed. On admission of pressure fluid to chamber 12 pistons 3 and 4 move apart, the former applying pad 13 to one side of the disc 9 and the latter acting through member 5 to apply pad 14 to the other side of the disc. Support 1 is secured to an axle structure 8 associated with a hub and wheel assembly 10, 11 to which the disc 9 is bolted.
Patent GB-875495-A (GB)
Title: Improvements in and relating to hydraulic forging presses
IPC: B30B15/16
Filed: 1959-12-04
Abstract: 875,495. Hydraulic presses. SCHLOEMANN A.G. Dec. 4, 1959 [Dec. 4, 1958], No. 41230/59. Class 69 (2). [Also in Group XXII] An hydraulic forging press has a main cylinder 12 supplied from a low pressure accumulator 25 during prefilling and by a high-pressure accumulator 3, 4 during forging, under the control of electro-hydraulically operated valves 15, 16, 17 only one of which can be opened at a time, and return cylinders 9 open continuously to the high pressure accumulator, the water discharged from cylinder 12 during the return stroke being returned to a reservoir 1 from which the low pressure reservoir 25 is supplied continuously by a pump 26. High pressure accumulator 3, charged by compressed air bottles 4, is fed through a distributer 6 by a constant output pump 2 drawing from reservoir 1. To initiate the pre-fill stroke, valve 15 is opened by piston 15c controlled by pilot valve 15b actuated by solenoid 15a. This allows pressure water from low pressure accumulator 25 to pass through pipes 29, 22 into cylinder 12 and overcome the resistance of the return cylinders 9. Valve 16 is then opened in a similar manner to permit high pressure water from accumulator 3 to pass through pipes 5c, 22 in cylinder 12. To effect the return stroke discharge valve 17 is opened to allow the exhaust of cylinder 12 through pipes 22, 24 and shock absorber 23 into reservoir 1. Accumulator 25 has a non-return valve 28. The valve pistons such as 15b have pressure oil supply and return pipes 20, 21. Solenoids such as 15a may be controlled as described in Specification 857,485 for adjusting the press stroke.
Patent GB-1392832-A (GB)
Title: Barium sulphate contrast medium
IPC: A61K49/04
Filed: 1972-09-06
Abstract: 1392832 Barium sulphate X-ray contrast medium SAKAI CHEMICAL INDUSTRY CO Ltd 6 Sept 1972 41263/72 Heading A5B [Also in Division C1] A BaSO 4  contrast medium contains 750- 1200 g/l BaSO 4 , CO 2  in an amount of from 0.2-4 volumes per volume of suspension and a suspending agent. Na, K, NH 4  or Mg salts of EDTA, polyphosphoric acid or citric acid may also be present in the suspension in amounts of from 0.01-2% by wt of BaSO 4 . The suspending agent may be sodium carboxymethyl cellulose, sodium alginate, gelatin, tragacanth or acacia in amounts of from 0.2-10% by wt of BaSO 4 . The BaSO 4  may have a particle size of 0.02-2Á.
Patent GB-1271079-A (GB)
Title: Improvements in or relating to rack and pinion assemblies
Inventor: ADAMS FREDERICK JOHN
IPC: B62D3/12
Filed: 1968-08-30
Abstract: 1,271,079. Rack and pinion gearing. CAM GEARS Ltd. 4 June, 1969 [30 Aug., 1968], No. 41437/68. Heading F2Q. In a rack and pinion assembly for a vehicle steering gear, wherein a rack bar 4 is longitudinally movable through a pinion housing 2 and a tubular rack bar housing 8 which extends from the pinion housing, a plastics bearing member 11 secured in the outer end of the rack bar housing 8 supports the rack bar 4, a spring- urged plunger 15 urging convergent sides 4a of the rack bar into sliding engagement with similarly convergent faces 12a of the bearing member 11. Clearances 13 between the top and bottom of the rack bar and the aperture 12 of the bearing member 11 allow for fluid flow across the bearing as bellows 9, 10 change in volume due to movement of the rack bar.
Patent GB-1563754-A (GB)
Title: Balance of reciprocating parts of reciprocating piston machines
IPC: F01B9/02
Filed: 1977-10-06
Abstract: In order to be able to achieve compensation of the free oscillating inertia forces of the first and second order in a reciprocating piston machine with a reciprocating piston engaging on a crank pin (5) on a crank of a crank shaft (6) via a sliding joint guided in a straight line and a piston rod (4), a balance weight (7) is articulated on the crank shaft (6) symmetrically to the point of engagement of the piston rod (4). The balance weight (7) can be moved in the opposite direction to the reciprocating piston by the crank shaft (6) and its mass and its connecting-rod ratio  lambda (quotient of the respective length of the piston rod and the respective crank radius) is matched to the reciprocating piston and the inertia forces of the first and second order, which oscillate with the reciprocating piston. In a preferred compact design, the three-crank crank shaft (6) is mounted on the crank webs (12, 13) associated with the two outer cranks. <IMAGE>
Patent GB-1236255-A (GB)
Title: Improvements in or relating to a process for producing an explosive foil or charge
IPC: C06B21/00
Filed: 1968-08-30
Abstract: 1,236,255. Explosive compositions. DYNAMIT NOBEL A.G. 30 Aug., 1968 [1 Sept., 1967], No. 41653/68. Heading C1D. [Also in Division F3] An explosive foil or charge is produced by casting from a thixotropic flowable mixture comprising spherical particles containing nitrocellulose, a solid high explosive material, a stabilizer, and a plasticizer and/or liquid nitric acid ester, and gelatinizing the mixture at an elevated temperature. Specified ingredients are spherical particles of size less than 100 Á containing nitrocellulose and nitroglycerine or nitrotoluene; PETN or RDX; diglycol dinitrate; an aliphatic dinitrile, several of which are specified; diethyl phthalate, centralite, and glycerine triacetate. Mixing and/or casting may take place under vacuum. A fabric of coarse linen, polyethylene terephthalate, jute, or glass may be incorporated in the foil. In a continuous process, foil is cast on an endless belt and reeled with a polyethylene separating layer.