baber/WOPTO huggingface dataset:
Patent GB-1122705-A (GB)
Title: Improvements in or relating to apparatus for separating solid particles entrained in a gas stream
IPC: B01D45/02
Filed: 1966-09-16
Abstract: 1,122,705. Separating entrained solids from air. K. L. WHITAKER. 25 July, 1967, No. 41471/66. Heading BIT. A device for removing entrained solids from an air stream, at the outlet end of a pneumatic conveyor, comprises a rectangular filter with three walls 16 and top 17, of perforate metal or wire mesh, an open floor with solids outlet hopper 21 and a fourth wall 11 in common with enclosing chamber 10. Wall 11 incorporates inlet 12, 13 and an access door 24 for cleaning the filter interior. The other walls and top of chamber 10 are spaced from the filter, providing space 18 opening into air outlet 19. Baffle 23 may be perforate or not and deflects incoming solids downwards. Walls 16 slope down and outwards and are connected by flanges 20 to the chamber walls. Access doors 25 in the chamber walls enable cleaning of the filter exterior, the solids being swept through openings otherwise closed by covers 26. Outlet 22 may incorporate an air-lock.
Patent GB-943161-A (GB)
Title: New derivatives of carbamic acid and their manufacture and use
IPC: C07C275/30
Filed: 1961-11-22
Abstract: The invention comprises N-3-trifluoromethylphenyl-N1:N1-di (hydrocarbon group) ureas wherein one of the hydrocarbon groups has 1 or 2 carbon atoms, the other has 2-4 carbon atoms and both groups contain together up to 5 carbon atoms.  The following preparative methods are mentioned: (a) aryl isocyanate + secondary amine (exemplified), (b) arylamine + dialkyl carbamyl chloride, (c) phenyl N-arylcarbamate + secondary amine, (d) arylamine + phenyl N:N-dialkylcarbamate, (e) arylcarbamyl chloride + secondary amine and (f) arylamine + urea + secondary amine, "aryl" in all cases meaning 3-trifluoromethylphenyl.  Specified compounds of the invention are N-3-trifluoromethylphenyl-urea in which the N1 hydrogen atoms are substituted by (1) Et, Et; (2) Me, n-Bu; (3) Me, Et; (4) Me, n-Pr; (5) Me, i-Pr; (6) Me, allyl.ALSO:Herbicidal preparations comprise N-3-trifluoromethylphenyl - N1,N1 - di(hydrocarbon group) ureas in admixture with a solvent, a non-solvent liquid diluent or a solid diluent. Specified forms are emulsions, pastes, wettable powders and dusts. In the active ingredient, one hydrocarbon group has 1 or 2 and the other 2-4 carbon atoms, while both groups contain together up to 5 carbon atoms.  The said preparations may contain a dispersing agent, an adhesive, a wetting agent, another herbicide, e.g. a tri- or tetra-substituted arylalkylurea, a halogenated phenoxyalkanecarboxylic acid, a halogenated benzoic or phenylacetic acid, a halogenated fatty acid or salt, ester or amide thereof, a halogenated benzonitrile, terephthalic acid ester or methacrylic acid anilide, borax or other inorganic salt, a fertilizer such as calcium cyanamide or urea, or a pest-controlling agent such as a chlorinated hydrocarbon or phosphoric acid ester; the incorporation of such herbicides as dodecyl hexamethyleneimine or its salts, 1,11-ethylene-2,21-dipyridilium dibromide or its salts, carbamates, thiolcarbamates, dithiocarbamic esters, s-triazine derivatives, 2-chlorobenzothiazole, 3-amino-1,2,4-triazole, maleic acid hydrazide, 3,5 - dimethyltetrahydro - 1,3,5-thiadiazine-2-thione, p pentachlorophenol, dinitrocresol, dinitrobutyl, phenol, naphthylphthalamic acid and methyl isothiocyanate, is also mentioned.
Patent GB-1361070-A (GB)
Title: Measurement of the ion content and electric field of the atmosphere
IPC: G01W1/16
Filed: 1971-09-08
Abstract: 1361070 Electro-physical tests; measuring electric fields T SATSUTANI 8 Sept 1971 [8 Sept 1970] 41971/71 Headings G1N and G1U In a coaxial type atmospheric ion content or electric field measuring apparatus the central electrode 1, exposed to the atmosphere, is supported by insulators 3 which are earthed. Such an arrangement removes interference of the impressed voltage on conductor 1 and any disturbance of atmospheric conditions in the measuring of electric potential in the absence of a collector. Ion content measuring apparatus Fig. 1 includes an earthed shield tube 2 supporting insulators 3 and an electrode sleeve 4 to which may be applied a voltage from source E. Air is passed through the device and the ionic current sensed by conductor 1 amplified at B and recorded at D. Electric field measuring apparatus Fig. 2 (not shown) has one end of the central electrode 1 of Fig. 1 arranged to protrude from shield 2. Electrode sleeve 4 is omitted and the central electrode 1 is connected to a meter and recording apparatus. Reference is made to the apparatus being used to measure atmospheric humidity.
Patent GB-1178690-A (GB)
Title: Digitizer with Absolute Position Transducer Providing Single Line Output
Inventor: EVANS DAVID SILVESTER
IPC: G08C19/18
Filed: 1966-09-20
Abstract: 1,178,690. Digital shaft encoders. MOORE REED (INDUSTRIAL) Ltd. 19 Dec., 1967 [20 Sept., 1966], No. 41983/66. Heading G4H. An angular position transducer comprises a contact 5 displaceable from a datum position by rotation of input shaft 2, a contact 7 at the datum position and a scanning arm having brushes 9, 9<SP>1</SP> engaging contacts 7 and 5 in turn as it rotates. The arm shaft 3 is driven by a motor 8 which may be a mains synchronous motor. The start output from contact 7 is used to set a flipflop and the differentially timed output from contact 5 resets it. The duration-significant signal from the flip-flop gates clock pulses to a counter the value in which then represents the angle of shaft 2. The clock pulses may be derived from the mains if the motor 8 is synchronous. Alternatively, the motor may be driven synchronously by pulses from a clock pulse generator which are also applied to the gate. The apparatus may be arranged to digitise more than one revolution of shaft 2 either by preventing the flip-flop being reset in the first revolution of the scanning arm or by arranging that the contact 5 and the scanning arm move along spiral or helical paths.
Patent GB-881260-A (GB)
Title: Improvements in or relating to fluid pressure operated disc brakes
Inventor: HAYES CECIL
IPC: F16D65/14
Filed: 1959-12-11
Abstract: 881,260. Disc brakes. AUTOMOTIVE PRODUCTS CO. Ltd. Dec. 11, 1959, No. 42236/59. Addition to 811,525. Class 103 (1). A fluid pressure operated disc brake includes a disc 10 mounted between friction pads 25, a plurality of cylinders 19, 20 associated with one of the pads provides a resultant thrust equal to the thrust provided by a single cylinder 21 associated with the other pad 25, but acting at a position offset along the circumference of a circle about the centre of disc 10, the offset distance being less than the internal radius of cylinder 21. The cylinders 19, 20 may be of the same or different diameters and are connected via passage 30, cylinders 19, 21 being connected via a conduit, not shown, and conduit 44 connects cylinder 21 to a source of pressure fluid. The axes of cylinders 19, 20, 21 are equidistant from, and parallel with, the disc axis and the thrust point of cylinders 19, 20 leads that of cylinder 21 in the direction of rotation of disc 10 for forward travel of a vehicle. The caliper, the supporting of pads 25, the automatic clearance adjuster and the degree of offsetting are as disclosed in the parent Specification.
Patent GB-1107088-A (GB)
Title: Improvements in or relating to rolling bearings
IPC: F16C33/64
Filed: 1965-10-05
Abstract: 1,107,088. Bearings. SVENSKA KULLAGEBFABRIKEN A.B. 5 Oct., 1965 [6 Oct., 1964], No. 42243/65. Heading F2A. [Also in Division B3] A race ring of a rolling bearing is made by forming a bar stock B to approximately the cross-section of a finished ring, and bending the bar into a ring and joining the ends permanently. In a preferred method, an elongated flat bar stock B is rolled or extruded to a first cross-section incorporating a raceway R, annealed, then cold drawn to a second crosssection. The bar is then cut into sections, each being bent and, then having its ends 30 chamfered and joined by welding. The ring is then heat-treated and ground. The grain of the ring material is in the direction of movement of the rolling elements. Both inner and outer races may be made from the same bar.
Patent GB-1003222-A (GB)
Title: Improvements in metal surface treatments
Inventor: LLEWELYN GEIRIONYDD
IPC: C23C10/48
Filed: 1960-12-08
Abstract: Aluminum is diffused into the surface of nickel alloy and cobalt alloy components, e.g. turbine blades, by heat treatment with a powder mixture of 10-30% Al powder, 0.1-1.0% of NH4Br, and the balance an inert granular refractory material of 100-300 mesh, e.g. alumina.  The components after cleaning with abrasive and trichlorethylene are packed into a container which is inserted in a retort, and a non-oxidizing gas passed through, while heating at 1100 DEG C.  The gas flow is maintained after heating until the retort cools to 100  DEG C. The amount of NH4Br present, the temperature, and duration of treatment determines the thickness of the aluminium layer which should not be less than 0.0005 inch, and preferably is 0.001 inch.  Areas not required to be coated may be masked by applying a mixture of talc and sodium silicate solution.  The aluminized alloy components may then be heat-treated at 900-1100  DEG C.  Typical wrought Ni-base alloys contain:  0.1% C, 11.0% Cr, 5.0% Mo, 20% Co, 1.5% Ti, 5.0% Al, balance Ni; cast Ni-base alloys:  0.1% C, 12.0% Cr, 4.0% Mo, 2.0% Nb, 0.5% Ti, 5.5% Al, balance Ni; and Co-base alloys:  0.5% C, 24.5% Cr, 10.5% Ni, 7.5% W, 1.0% Fe, balance Co.
Patent GB-1398204-A (GB)
Title: Shift register storage units
IPC: G11C19/08
Filed: 1973-09-10
Abstract: 1398204 Digital data storage INTERNATIONAL BUSINESS MACHINES CORP 10 Sept 1973 [16 Nov 1972] 42404/73 Addition to 1313444 Heading G4C [Also in Division H3] The data storage system of the parent Specification 1,313,444, in which address bits a and data bits d of pages of data are stored in shift registers having recirculation loops L1 and L2 respectively including and excluding the read/ write access position K, is modified in that one bit (e.g. the lowest order) of a requested page address is used to control the direction of shifting so as to reduce the access time. Recently accessed pages are maintained in positions for successive shifting into the access position K in preference to other pages, the arrangement described storing pages with even-numbered addresses at the right-hand end of the registers and those with odd-numbered addresses at the left-hand end. The address of a requested page is supplied over lines 118, the lowest order address bit determining the direction of shift signals produced by a shift control unit until a comparator ACU detects a match, whereupon the shift control unit is conditioned for shifting in the opposite direction to restore the pages to the order of most recent access leaving the last accessed page in position K. The number of shifts required to access the desired page is counted in a reversible counter 200 which controls the number of shifts which take place in the restore operation in conjunction with a latch 310 which is set by the lowest order address bit. Magnetic bubble shift registers are described for use in the system, the shift control unit supplying a reversible rotating magnetic field to effect shifting in the registers. The use of FET registers is also mentioned.
Patent GB-1321187-A (GB)
Title: Explosives
IPC: C06B23/04
Filed: 1971-09-10
Abstract: 1321187 Explosive compositions DYNAMIT NOBEL AG 10 Sept 1971 [11 Sept 1970] 42422/71 Heading C1D A pulverous or gelatinous explosive composition having a positive oxygen balance of up to 10% comprises a sensitizing component, a reversed salt pair comprising an alkali metal nitrate and ammonium chloride in substantially equimolar quantities, ammonium oxalate and/or further ammonium chloride, and from 0À1-40% by weight of ammonium nitrate having a bulk volume of at least 0À60 cc/g in the form of prills, granules, or grains, at least 80% of which particles are larger than 0À1 mm. Sensitizing agents referred to are nitroglycerine, nitroglylcol and PETN. Other optional ingredients are perchlorates of Li, Na, K, Mg, Ca, Ba, Al, Zn, Fe, or NH 4 , ammonium nitrate having a specific surface of at least 500 cm.<SP>2</SP>/g, CaCO 3 , MgCO 3 , BaCO 3 , dolomite, sodium bicarbonate, MgO, CuO, ZnO, calcium stearate, paraffin, sawdust, graphite, metal soaps, long chain alkylamines, cellulosic materials, guar powder, chlorinated paraffins, chlorinated naphthalene waxes, clay, silicon dioxide, and sodium or calcium chloride. The ammonium nitrate used may be treated with pyrogenic silica, kieselguhr, kaolin, talcum, fuchsin, octadecylamine, octadecylguanidine, lauryl sulphate, or ethanolamine. Gel explosives may be obtained by addition of 18-40% of a gel phase.
Patent GB-926469-A (GB)
Title: Improvements in boxes
IPC: B65D5/28
Filed: 1961-11-29
Abstract: 926,469. Cartons. AHLEN & AKERLUND FORPACKNING A.B. Nov. 29, 1961 [Dec. 9, 1960], No. 42591/61. Class 18. A box formed from a single blank, Fig. 1, comprises side walls 2, 3, 4 joined by gusset folds 12, 13, end walls 2 having extensions 6 and triangular flaps 14. On erection of the box the flaps 6 lie outside wall 2 and the triangular flaps 14 lie between panels 12, 13; panels 7 on lid 5 are secured to the flaps 6, and an extension 10, formed as a part of the extension 9, 10 on wall 3, is secured to the inside of lid 5, Fig. 5. The members 7, 6, 10 and a narrow strip on lid 5 corners rounding to panel 10 are provided with latex or another pressure sensitive adhesive to seal the carton.
Patent GB-1460210-A (GB)
Title: Fluoran compounds and recording sheet containing them
IPC: B41M5/145
Filed: 1974-10-03
Abstract: 1460210 Fluoran compounds as colour formers SUMITOMO CHEMICAL CO Ltd 3 Oct 1974 [5 Oct 1973] 42900/74 Heading C4P [Also in Division D2] Fluoran compounds have the formula where R 1-4  are each H, or optionally substituted alkyl, alkenyl or alkynyl, or cycloalkyl or phenyl, naphthyl or p-phenoxyphenyl the benzene rings of either of which may be substituted by 1-4 substituents chosen from hal, alkyl, alkoxy, dialkylamino, or alkoxycarbonyl, or R 1  and R 2 , or R 3  and R 4  may form a heterocyclic ring; Y is H, hal, alkyl, alkoxy, dialkylamino or alkoxycarbonyl; D may carry a fused benzene ring in the position indicated; Z is H or hal and m and n are independently 1-4. The compounds of Formula I are prepared by condensing a 2-(4<SP>1</SP>-amino-2<SP>1</SP>-hydroxy)benzoylnaphthalene- 3-carboxylic acid derivative of Formula IV with a p-aminophenol derivative of Formula (V) and, if necessary, forming a lactone ring by heating the product in a suitable organic solvent Alternatively compounds of Formula I in which R 4  is an optionally substituted alkyl, alkenyl or alkynyl group are prepared by reacting the corresponding compounds of Formula I in which R 4  is H, with an alkylating agent. The intermediates of Formula IV are prepared from the appropriate m-aminophenol derivative and the corresponding naphthalene 2,3-dicarboxylic anhydride. The compounds are used as colour formers in pressure sensitive recording or heat sensitive copying.
Patent GB-1211127-A (GB)
Title: Hydraulic motors of the piston and cylinder type having a quick exhaust
Inventor: BILLINGS ROY OMAR
IPC: F15B15/14
Filed: 1968-09-10
Abstract: 1,211,127. Hydraulic motors. R. O. BILLINGS. Sept.10, 1968 [Sept.19, 1967], No.42923/68. Heading F1P. In a double or single -acting hydraulic motor comprising a cylinder 10 having a piston 21 slidable therein and provided with a hollow piston rod 49, a variable volume auxiliary reservoir chamber 61 is provided in the hollow rod to receive through a valve 38 part of the hydraulic fluid exhausted from the main cylinder chamber 60 when the motor performs a retraction stroke, whereby this stroke is performed at high speed. In the double-acting motor shown, the valve 38 is opened during the retraction stroke by movement of a coupled valve 37 to its closed position. The valve 37 is closed by the fluid pressure causing retraction, which fluid is admitted to annular spaces 55, 56 through a line 15 controlled by a distributer valve 13. If the motor is single-acting the valve 37 is omitted and the valve 38 is spring loaded to its open position. To perform an extension stroke the distributer 14 is operated to direct fluid to the chamber 60, the valve 38 closes, and hydraulic fluid in the chamber 61 is expelled through bores 26, 28, 27 in the piston 21 to the line 15 connected directly (single-acting) or indirectly via distributer 14 (double-acting) to the main reservoir 18.
Patent GB-1270982-A (GB)
Title: Improvements in or relating to a method and machine for centrifugally casting tubular metal bodies
IPC: B22D13/10
Filed: 1969-08-29
Abstract: 1,270,982. Centrifugal casting machines. CENTRE DE RECHERCHES DE PONT-AMOUSSON. 29 Aug., 1969 [4 Sept., 1968], No. 43181/69. Heading B3F. A centrifugal pipe casting machine comprises a rotatable mould A on a carriage F reciprocable by a fluid motor C along a tubular pouring spout 3 which distributes molten metal from the top end of the mould to its bottom end. Melt from a vessel 1 is fed to the spout 3 which is inclined at 3 to 10 degrees. The spout comprises a central metal tube surrounded by a cylindrical packing of refractory material, e.g. slag wool, encased in metal hemicylindrical shells. In an alternative embodiment, a horizontal tubular spout 3 is used having a sealed end (16) and an orifice 17 (see Fig. 6) at its upper part. The above pouring spout arrangements enable the pouring spout to be kept full of molten metal between casting operations. In a further embodiment, melt is forced through a tubular pouring spout by gas pressure in a hermetically sealed ladle.
Patent GB-1146343-A (GB)
Title: Improvements in and relating to means for measuring the direct current in direct current carrying rotor windings of dynamo electric machines
Inventor: CLARK DAVID ERIC
IPC: G01R31/34
Filed: 1966-09-28
Abstract: 1,146,343. Measuring D.C. in rotor windings. C.A. PARSONS & CO. Ltd. July 19, 1967 [Sept.28, 1966], No.43254/66. Heading G1U. The D.C. current in the rotor winding of a dynamo-electric machine is monitored by measuring the voltage of a Hall plate 4 located in the magnetic circuit of a U-shaped magnetic core 3 inductively coupled to a current loop 1a carrying the rotor current and located around the axis of rotation of the rotor. To compensate for error voltages introduced by axial or transverse movement of the rotor shaft, two diametrically opposed and axially displaced magnetic cores are used, Fig. 3 (not shown) and the outputs of the Hall plates are added together. Instead of forming a single loop, as shown, the conductor 1 may branch off to form two half-loops, Fig.4 (not shown) and the loop may be mounted in a diode carrier forming part of a rotating rectifier arrangement, Fig.6 (not shown).
Patent GB-1321450-A (GB)
Title: System for demodulating an amplitude-modulated telegraphic wave or waves
IPC: H04L27/06
Filed: 1970-09-11
Abstract: 1321450 Digital transmission systems; demodulating AM signals KOKUSAI DENSHIN DENWA KK 11 Sept 1970 [12 Sept 1969] 43559/70 Heading H4P A system for demodulating an amplitude modulated signal which may additionally have phase modulation, comprises an amplitude sampling circuit (2) which amplitude is converted to a digital code for each signal element in an A.D. converter (3) and means for comparing the codes with a reference code in order to demodulate the received signal. The A.D. converter (3) may have a code of six digits which are converted to eleven digits at 7 the most significant of which indicates the polarity and is supplied to a subtractor 8 also receiving a reference code from 13. A sign digit of this comparison indicates polarity, i.e. +ve = " 0 " which is passed out through a terminal 16. The polarity sign digit is also compared in 14 with that stored in a memory 9-2 which stores a subtracted result from an immediately preceding signal and this is applied to adding/ subtracting circuit 9-1 before accepting the next signal. The circuit 9-1 performs subtraction for equal sign digits applied to 14 and conversely, and corresponds to a detection operation to detect level fluctuation in the input signal. The output of 9-1 is applied to a second adding/ subtracting circuit 10-1 which is subtracted from (added to) signals received from memory 10-2, storing a previous result, also under the control of 14, where the inputs to 14 have the same (different) polarity, and the new result is stored in memory 10-2. Memory 10-2 stores eleven bits, seven being indicative of the reference code and errors from 10-1 are accumulated in the remaining four " empty " bits. If the errors exceed four the seven digit reference signal is corrected. The seven bits are converted to eleven in converter 13. Operation of the reference code modifier which adjusts its outputs to compensate for fluctuation of relative signal amplitudes is described in greater detail in relation to Fig. 3 (not shown). In a system employing a plurality of AM signals these can be switched in synchronism in a time division mode to a plurality of memories 9-2, 10-2 which may be designed as delay lines. In Fig. 4 (not shown) a circuit arrangement for an amplitude and phase modulated wave is described having a generator (25) for 90-degree phase displaced waves of carrier frequency which are alternately applied to a circuit 26 which extracts by comparison a sign digit con. trolling adding/subtracting circuit (23) which corresponds to phase detection, and the result stored in a memory (24) for comparison with the signal following. Outputs corresponding to cos # and sin # respectively are applied to a circuit (27) which converts the input to six digits which are reconverted to a code proportional to amplitude in a converter (28) which may be done by reference to a table the output from this being applied to terminal 6 of the detector described above.
Patent GB-1516568-A (GB)
Title: Atomizer-mixer for liquids
IPC: B05B7/24
Filed: 1976-10-21
Abstract: 1516568 Spray-producers; mixing fluids in flow R BOUILLARD and H BOUILLARD 21 Oct 1976 [5 Nov 1975] 43733/76 Headings B1C and B2F [Also in Division Fl] Apparatus for atomizing a mixture of two different liquids comprises a housing 2 mounted on a container 5 for a first liquid, a coupling member 7 for supplying a second liquid under pressure to a slightly convergent pipe 12, a Venturi-type pressure regulator 13 in said pipe, a nozzle member 21 disposed in said pipe downstream of said pressure regulator and having a stepped outer surface and a longitudinal bore 27 through which the atomized liquid mixture is discharged into a diverging frusto-conical outlet portion 32 on whose peripheral border is mounted an adjustable deflector 35, an annular suction chamber 24 defined by the inner surface of the pipe 12 and the outer surface of the nozzle member 21, and, communicating with said suction chamber, a suction pipe 6 extending into the container 5, a transverse channel 28 in the nozzle member 21 and a suction control channel 29 terminating in an orifice which can be blocked by the thumb of the operator. When the control channel 29 is closed, the flow of the second liquid through the nozzle member 21 creates a partial vacuum in the suction chamber and causes the first liquid to be sucked up through the pipe 6. A conical filter 10 is disposed between the coupling member 7 and the pressure regulator 13. The housing 2 may be made of moulded plastics material.