baber/WOPTO huggingface dataset:
Patent GB-1532446-A (GB)
Title: Method and arrangement for filling a pressure chamber in particular a hydropneumatic reservoir
IPC: F17C13/06
Filed: 1975-12-05
Abstract: 1532446 Charging gas pressure vessels GREER HYDRAULICS Inc 5 Dec 1975 [5 Dec 1974] 50047/75 Heading F4P  For charging, a gas pressure vessel 23, having a gas inlet port 32 with a loose-fitting sealing member 91, Fig. 6, is secured between two supports 16, 38 gas under pressure being introduced into the vessel past member 91 via passages 86, 83, 76, 52, the sealing member being tightly fitted in port 32 after filling is completed but while pressure is still maintained by actuating a plunger 61, 64. The gas under pressure acts on a sealing piston 42 to provide an effective seal against the vessel 23 around the port 32. The member 91 is cup-shaped and has circumferential teeth 95 which, when the plunger 61, 64 is actuated by introducing oil under pressure to passages 75, 72, 73, forcing the member 91 into a narrower bore portion 32b of port 32, grip the side walls of the bore under the action of ball 100 which is forced into member 91. The ball 100 or the member 91 has pressure relief passages 110 or 101. Gas passage 76 is connected by passage 84 to a relief valve 87 and a pressure gauge (not shown).
Patent GB-1001721-A (GB)
Title: Method of crystallising monosodium glutamate monohydrate
Filed: 1963-12-20
Abstract: <PICT:1001721/C2/1> <PICT:1001721/C2/2> The invention comprises optically active monosodium glutamate monohydrate crystals having a shape as in Fig. 2 and a cross-section as in Fig.3.  The crystals are obtained by forming an aqueous methanolic solution (the methanol concentration being 60 to 95% by weight) supersaturated with respect to optically active monosodium glutamate, and leaving the solution, with or without stirring for crystallization to occur.  The temperature may be lowered during crystallization.
Patent GB-1476382-A (GB)
Title: Motor fuel additives and motor fuel compositions containing them
IPC: C10L1/18
Filed: 1974-04-26
Abstract: 1476382 Alkylammonium carboxylate salts of esters of dimer and trimer acids ROHM & HAAS CO 26 April 1974 [2 May 1973] 50805/76 Heading C2C [Also in Divisions C5 and C3] Surface active alkyl ammonium carboxylate salts of an ester of a dimer or trimer or mixture of dimers and trimers of an unsaturated aliphatic monocarboxylic acid of 16-18 C atoms with an alkoxylated alkyl phenol, which estersalts may be of the formula where n is a value in the case of a single compound or average value in the case of a mixture of compounds from 1 to 12À5, Z is a saturated or unsaturated hydrocarbon residue of the dimer or trimer or the mixture of dimers and trimers, x and y are 1 or 2, the sum of x and y being 2 when Z is the residue of a dimer, and 3 when Z is the residue of a trimer, R 4  is C 4 -C 12  alkyl, R 5  is H or C 4 -C 12  alkyl and R 6  is an alkyl or aminoalkyl of from 2-24 C atoms; may be made by acid catalysed esterification of a suitable dimer or trimer acid or a mixture thereof followed by conversion to the salt by addition of a suitable amine.
Patent GB-1277074-A (GB)
Title: New disazo dyes
IPC: C09B35/023
Filed: 1969-10-17
Abstract: 1277074 Disazo dyes BADISCHE ANILIN & SODA FABRIK AG 17 Oct 1969 [19 Oct 1968] 51023/69 Heading C4P The invention comprises yellow disazo dyestuffs having the Formula I: where R and R<SP>1</SP> are cyano, carboxyl, alkoxycarbonyl, oxaalkoxycarbonyl or optionally substituted amido, and A is a direct bond, an oxygen or sulphur atom, or a group of the type where n is 0 or an integer from 1 to 6 and R<SP>2</SP> is hydrogen, methyl or ethyl. The dyes of Formula I may be prepared by tetrazotization of a suitable diamine and coupling with a suitable phenol.
Patent GB-1400337-A (GB)
Title: Pre-sensitized lithoprinting plate
IPC: G03F7/00
Filed: 1973-11-02
Abstract: 1400337 Lithographic plate FUJI PHOTO FILM CO Ltd 2 Nov 1973 [2 Nov 1972] 51103/73 Heading G2C An unexposed lithographic plate comprises a support having a coating of up to 10 microns thick comprising a mixture of a positive or negative working photo-sensitive material and a silicone rubber in a ratio of 0.2-1.1 to 1. The support may be of aluminium, zinc or iron plate, polymer film or laminated paper and may be subbed with a silicone primer. The photo-sensitive material may be 2-diazo-1-naphthol-5-sulphonic ester of polymeric pyrogalloe/acetone condensation product, a poly condensate of p-phenylenediacryclic acid with 1, 4-dihydroxyethylcyclohexane, poly (cinnamoyloxyethlyl methacrylate), or 2, 6-di (4'-azidobenzal)-cyclohexanone. The silicone rubber may be of one-shot dealcohol, deacetic acid, deoxine or deamino type, or of two-shot addition or condensation type. The coating composition may be applied in methylethyl or methylisobutyl ketone or cyclohexanone. The rubber may be cured by heating at 100-150‹C for 5-30 minutes.
Patent GB-1157198-A (GB)
Title: Selective Signalling System
IPC: H04Q9/14
Filed: 1967-11-10
Abstract: 1,157,198. Selective calling arrangements. AMP Inc. 10 Nov., 1967 [14 Nov., 1966], No. 51271/67. Heading G4H. One of a number of field stations is called by transmitting a code corresponding to the desired field station, the code being received at the field station and compared bit-by-bit with a locally generated code unique to that station. The signals may be transmitted by radio, a laser beam or a line. At the field station they are applied to a pulse shaper, 114, Fig. 2, to obtain a series of seven square pulses, the first being a start pulse, the next five being the code and the last being an end pulse. The start pulse passes on lead 116 to start a clock oscillator 120 which, through a driver 124, causes a " 1 " bit in the first place of shift register 126 to step through the stages giving successive signals on outputs p, q, r, s, t. In code plug 128, two of these terminals are connected to the corresponding terminals P, Q, R, S, T which are connected, together with the output from the first stage of the shaft register, to Or gate 146. The output y consists of a series of pulses, the start pulse and two of the next five possible pulses, being the station code. This signal is compared in Exclusive-Or gate 122 with the incoming signal x on lead 118. If there is disagreement an output is given by gate 122, which passes over line 144 to reset circuit 136, stopping the oscillator 120 and resetting the shift register to the initial condition. If there is agreement the seventh clock pulse moves the " 1 " bit in shift register 126 into the seventh position to give an output on lead 130. This resets the circuit ready for the next part of the operation and sets flip-flop 152 the output of which restarts the oscillator 120 to cause the code to be read out again from the code plug 128. A switch 155, enabled by flip-flop 152 causes the code y to be transmitted back to the central station to indicate that the selected station has responded. In another embodiment the calling signal consists of 4 decimal digits each represented by five bits, two of which are present.
Patent GB-1057974-A (GB)
Title: Quick release buckle
IPC: A44B11/25
Filed: 1965-12-03
Abstract: 1,057,974. Clamps; latches. J. R. HOLLINS. Dec. 3, 1965, No. 51406/65. Headings E2A and E2B. A quick release buckle comprises a frame 26 having a base 28, a retainer member 44, means 48 pivotally mounting the retainer member on the frame 26 for movement of a portion 58 thereof towards and away from the base, a release member 64, means pivotally connecting the release member to the retainer member  44 located between the ends of the release member, the ends being located above and in proximity to the frame, both of the ends being movable toward and in contact with the frame whereby when either end of the release member is moved away from the frame, the other end will fulcrum on the frame and the intermediate portion of the release member will lift the retainer away from the base. As shown, in which strap ends 12 and 16 are attached respectively to the frame member 26 and to an apertured tongued plate 14, the latter is is adapted for spring-urged latching engagement with the retainer member 44 which is pivotally connected to the frame member 26 through a pin 48 and includes a finger portion 58 having a pin and slot connection 62, 34 with the frame member, the pin 62 also constituting a pivotal connection of the release member 64 with the frame member 26 and with the retainer member 44. In another arrangement, Figs. 5-7 (not shown), the retainer member is a serrated cam member, which, in the operative position thereof, exerts a direct clamping action on one strap end which is passed through the , buckle frame.
Patent GB-1115878-A (GB)
Title: Improvements in or relating to gunn effect apparatus
IPC: H01L29/00
Filed: 1966-11-16
Abstract: 1,115,878. Gunn effect devices. TELEFUNKEN PATENTVERWALTUNGS G.m.b.H. 16 Nov., 1966 [30 Dec., 1965], No. 51439/66. Heading H3T. [Also in Division H1] A Gunn effect apparatus comprises a plurality of individually biased Gunn oscillator elements 1, 3, 6 connected together in series by PN junctions 5, 8, the first and last elements being provided with input and output contacts 9, 10, respectively. The apparatus can be used to delay a pulse by biasing each element to below its critical voltage and applying the pulse to the input contact 9 to trigger the element 1 into oscillation. When the oscillation reaches the PN junction 5 it is rectified and triggers the second element 3, and so on, the output pulse which finally reaches the contact 10 thereby being delayed by an interval corresponding to the number and characteristics of the elements in the series. Pulse multiplication may be obtained by making the input pulse longer than the transit time of a high field zone through the first element, and frequency inversion results if the elements have different oscillating frequencies. The apparatus is preferably made by the planar epitaxial technique on a common substrate, the substrate being mounted on a heat sink, and the elements consist of III-V semi-conductor material.
Patent GB-1093977-A (GB)
Title: 4-quinazolinone derivatives
IPC: C07D239/91
Filed: 1966-11-17
Abstract: Novel 4-quinazolinone derivatives and non-toxic addition salts thereof having the general formula <FORM:1093977/C2/1> wherein R is an alkyl group having 1 to 5 carbons, a halogen atom or a trifluoromethyl group and R1 is a hydrogen atom, a halogen atom, or an alkyl group having 1 to 5 carbons, are prepared by the condensation of o-aminobenzoic acid with an N-formyl aromatic amine, containing the groups R and R1, N-formyl-o-aminobenzoic acid with an aromatic amine containing the groups R and R1, or by the cyclization of an N1-arylamide of anthranilic acid.  Pharmaceutical compositions having a tranquillizing, hypnotic and anticonvulsive action contain as the active ingredient the above novel compounds.
Patent GB-1152065-A (GB)
Title: Improvements in or relating to Analog Computing Circuit Arrangements
Inventor: BEN-YAAKOV SHMUEL
IPC: G06G7/163
Filed: 1966-11-21
Abstract: 1,152,065. Multipliers. YISSUM RESEARCH DEVELOPMENT CO. OF THE HEBREW UNIVERSITY OF JERUSALEM. 21 Nov., 1966 [22 Nov., 1965], No. 51952/66. Heading G4G. A photo-electric multiplier comprises a differential amplifier A with positive and negative inputs energized respectively from an input analog voltage Vx and the output of a potential divider I comprising resistor R 1  in series with an e.g. cadmium selenide photo-conductive cell PC 1  across a constant voltage Vc. The amplifier energizes a lamp or, e.g. gallium arsenide light source illuminating the cell PC 1  and a similar cell PC 2  in potential divider II with resistor R 2  across input analog voltage Vy. It is shown that the output voltage Vout across PC 2  = Vx Vy/Vc if Vx, Vc have similar signs. In a modification (Fig. 2, not shown), accepting inputs of either sign the potential divider I is energized from constant voltages ŒVc and potential divider II is energized from voltages ŒVy derived from an inverter amplifier. In a further modification for division (Fig. 3, not shown) potential divider I is energized from voltages ŒVy over an inverter amplifier and potential divider II is energized from constant voltages ŒVc, so that the output   across PC 2  is given by Vout = Vc 1  Vx/Vy. Vy
Patent GB-1165929-A (GB)
Title: A Process and an Apparatus for Producing Interlaced Filament Synthetic and Artificial Yarns, and Product thereby obtained
Inventor: TORSELLINI RENATO
IPC: D01H1/00
Filed: 1967-11-17
Abstract: 1,165,929. Interlacing filaments. R. TORSELLINI. 17 Nov., 1967 [17 Nov., 1966], No. 52505/67. Heading B5B. [Also in Division D1] In the production of multifilament yarn, e.g. of rayon, cellulose acetate, polyamide, polyester, polyurethane, having little or no twist, at any stage between extrusion of the filaments and final take-up or by independent processing, running filaments under tension are interlaced at uniformly spaced points or zones along their length by the action thereon of a fluid, e.g. air, jet emanating from a nozzle and a part of which impinges on the side of the filament bundle remote from the nozzle in pulses acting on the filaments from different directions with a controlled frequency. In the device shown, a gas jet from nozzle 1 hits the filaments 2 and also enters a flow duct, defined by a recess 4, alternately through a branch 6<SP>1</SP> and 6, as the entrance to 6 or 6<SP>1</SP> is closed to the gas flow by the filaments. Gas emerging from branch 6 or 6<SP>1</SP> hits the underside of at least some filaments which undergo combined lateral (traversing) and (intermittent) rotational movements to obstruct the other entrance to 6<SP>1</SP> or 6 and thus reverse the direction of gas flow in the duct (thereby establishing the pulses) and effect interlacing. The frequency of oscillation of the filaments and, therefore, the interval between interlacing operations, is dependent on several factors, e.g. count of the filament bundle, filament tension, spacing of yarn guides between which the bundle is located, friction between filaments and guides, dimensions of the flow passages, but may be varied by use of interchangeable bodies 5 providing ducts of different lengths.
Patent GB-1115317-A (GB)
Title: Process for preparing linear alpha olefins
IPC: C08F10/00
Filed: 1965-12-10
Abstract: Linear alpha-olefin polymers of M. wt. 56 to 2000, are made by polymerizing, at a pressure of 50 to 500 p.s.i., and at a temperature of - 30 DEG  to + 25 DEG  C., an ethylene-containing gas. The polymerization is effected in the presence of an aromatic hydrocarbon, or a halogenated hydrocarbon, and a sovent soluble catalyst consisting of (1) TiX3, TiX4, TiX3OR1, or TiX3OOCR1 where X represents Cl or Br, R1 represents alkyl, aryl, aralkyl, or cycloalkyl, and (2) AlRnX3- n where n is at least 1 but less than 2, X is Cl or Br, and R represents alkyl, aralkyl or cycloalkyl. Compound (1) when TiX3OR1, or TiX3OOCR1, may be prepared in situ by reacting TiX4 with an alcohol or carboxylic acid.  The reaction may be carried out in the additional presence of a C1 to C8 alkanol modifier.ALSO:Linear alpha-olefin polymers, including oligmers, of M.Wt. 56 to 2000, are made by polymerizing, at a pressure of 50 to 500 p.s.i., and at a temperature of -30 DEG  C. to +25 DEG  C., an ethylene-containing gas.  The polymerization is effected in an aromatic hydrocarbon or a halogenated hydrocarbon, and a solvent soluble catalyst consisting of (1) TiX3, TiX4, TiX3OR1, or TiX3OOCR1, where X represents Cl or Br, R1 represents alkyl, aryl, aralkyl, or cycloalkyl and (2) AlRnX3-n, where n is at least 1 but less than 2, X is Cl or Br, and R represents alkyl, aralkyl, or cycloalkyl. Compound (1) when TiX3OR1, or TiX3OOCR1, may be prepared in situ by reacting TiX4 with an alcohol or carboxylic acid.  The reaction may be carried out in the additional presence of a C1 to C8 alkanol modifier.
Patent GB-1157487-A (GB)
Title: Material Handling Machine.
Inventor: PRZYBYLSKI DANIEL FRANCIS
IPC: E02F3/32
Filed: 1966-11-25
Abstract: 1,157,487. Shovel excavators. WARNER & SWASEY CO. 25 Nov., 1966 [4 April, 1966], No. 27953/68. Divided out of 1,157,486. Heading E1F. To allow of variation of the speed-load lifting relationship of a boom of a materialhandling machine, e.g. a back hoe shovel excavator, the ram 93 controlling the vertical swinging of the boom 90 about a pivot 91 on the superstructure 92 of the machine acts on the boom through the pivot 97 of a linkage comprising a link 98 and a ram 102. The linkage, which is pivotally connected at 91 and 99 to the boom 90, permits of adjustment of the length of the lever arm between the pivot 91 and the line of thrust of ram 93 to allow of either low torque, large amplitude, fast movement or high torque, smaller amplitude, slower movement or intermediate variants, as desired, of the pivotal movement of the boom.
Patent GB-1097557-A (GB)
Title: An aqueous solution of glycidyl trimethyl ammonium chloride
IPC: C08G18/70
Filed: 1965-12-15
Abstract: The invention comprises an aqueous solution of 7-8 parts by weight of crystalline glycidyl trimethyl ammonium chloride in 3-2 parts by weight of water.  The solution is defined as being a liquid and does not include solid solutions. Solutions in this concentration range are more stable than the more dilute forms and provide a convenient means for transporting glycidyl trimethyl ammonium chloride without risk of explosion.
Patent GB-1534852-A (GB)
Title: Underwater detection equipment
IPC: H01Q1/34
Filed: 1967-11-23
Abstract: 1534852 Sonobuoys ULTRA ELECTRONICS Ltd 20 Dec 1968 [23 Nov 1967] 53449/67 Heading G4F [Also in Divisions H3-H5] A sonobuoy for detecting objects, e.g. submarines, comprises a plurality of co-axial ring shaped magneto-strictive electro-mechanical transducer elements orientated in use with their longitudinal axis vertical and located in a parabolic reflector which is hinged to fold around the elements in transit, and a casing consisting of a nose cap, a lower section and an upper section, the nose cap forming a protective housing for a compass which is arranged to provide electrical signals representing the bearing of the median of the azimuth angle over which sonar signals are received. As shown, the compass 6 is sealed within the nose 1 by a bulkhead 7 on which is mounted a sonar receiver 8 comprising the transducer elements, the centres of which lie on a line coincident with the focus of the reflector 10. The reflector 10 is provided with hinged plates 11 which may be folded within the overall diameter of the sonobuoy. The compass 6 and the receiver 8 supply signals to an electronic unit 12 which amplifies the signals and applies them to a radio transmitter 13 by way of a cable which is coiled within a cable pack section 14 when the sonobuoy is not in use. A battery actuated by sea water is housed in a compartment 15. Paddles 16 are stored in a longitudinal position but in use pivot about a hinge 17 and extend outward to provide a reaction with the water when rotation gear housed in the compartment 15 is driven to rotate the reflector 10. The upper or flotation section 3 includes air drogues 18 which, on release of the sonobuoy from an aircraft, open to reduce its rate of descent. The air drogues 18 may be angled blades which rotate during the descent. On impact with the sea, a cap 19 on which the air drogues 18 are mounted is released to expose a compartment 22. A bag 23 within the compartment is inflated to extend a dipole aerial 24 within the bag. Section 2 parts from section 3 and descends to the limit of the cable. The paddles 16 automatically swing to a horizontal position and the hinged plates 11 spring open to form the parabolic reflector 10. While the section 2 is sinking a switch operates to start the rotation gear and to activate the compass and the radio transmitter. When the cable is taut, the sonobuoy is fully operational.
Patent GB-1092648-A (GB)
Title: Improvements in or relating to a method of jointing for the sealing-tight assembly of juxtaposed elements such as boiler sections
IPC: F27D99/00
Filed: 1965-12-17
Abstract: 1,092,648. Jointing. IDEAL-STANDARD Ltd. Dec. 17, 1965 [Dec. 18, 1964], No. 53716/65. Heading B3V. [Also in Divisions B5 and F2] A method of joining the sections 1a, 1b of a boiler &c. comprises forming grooves 6 in the sections and forcing a plastic, adhesive sealing material 7 into the grooves until they are filled, Fig. 2 (not shown). A silicon elastomer, e.g. a depolymerized mastic having a base of synthetic rubber, may be used which is introduced into the grooves from the outside of the sections.
Patent GB-1451757-A (GB)
Title: Sieves
IPC: B03B5/16
Filed: 1972-11-21
Abstract: 1451757 Sieves SHUM YIP LEONG RUBBER WORKS 1 Oct 1973 [21 Nov 1972] 53728/72 Heading B2H A sieve 1 comprises a sheet of resilient rubber 2 bonded to a more rigid rubber support plate 3 and a multiplicity of apertures 5 in the sieve 1, the minimum width of each aperture 5 where it extends through the resilient sheet 2 being less than the minimum width where it extends through the support plate 3. The apertures 5 may be conical or stepped. Hardness figures are mentioned for the rubber. An embodiment, Fig. 3 (not shown) illustrates the sieve used on apparatus for the wet separation of metallic ores from sludge.
Patent GB-1157579-A (GB)
Title: Production of Lubricating Oil by Solvent Extraction.
IPC: C10G21/16
Filed: 1966-12-02
Abstract: 1,157,579. Solvent extraction. PHILLIPS PETROLEUM CO. 2 Dec., 1966 [3 Dec., 1965], No. 54019/66. Heading C5E. A light coloured lubricating oil is prepared by separately treating a lubricating oil feedstock of high acidity with an aqueous solution of an ammonium or alkali metal hydroxide and subsequently extracting the feedstock with phenol optionally in admixture with water. The lubri. eating oil is recovered from the raffinate by distilling off the phenol and the residual water preferably using an inert stripping gas such as nitrogen.
Patent GB-1135450-A (GB)
Title: Improvements in or relating to wheeled or other stands
Inventor: JONES NORMAN BERTRAM
IPC: F16B12/48
Filed: 1966-12-03
Abstract: 1,135,450. Furniture joints. WOODMET Ltd. 23 Nov., 1967 [3 Dec., 1966], No. 54225/66. Heading A4H. A stand or trolley has square section legs 16 secured to a platform 10 by channelled brackets 17 which embrace the legs and blocks 18 fixed beneath the platform. The brackets may be channel sectioned or V sectioned. Each bracket is secured to a leg by screws 19 and to a block 18 by means of studs (21) projecting from the block. A pair of legs may be secured by a double angle bracket (32, Fig. 8). The platform 10 is constructed of plywood covered with metal or plastics sheet or a veneer and has an aluminium rim 13 with a side channel (14) receiving the edge of the platform.
Patent GB-1374257-A (GB)
Title: Protective envelopes and methods of manufacturing said envelopes
IPC: B65D30/08
Filed: 1971-11-25
Abstract: 1374257 Laminates SEALED AIR CORP 25 Nov 1971 [4 March 1971] 54726/71 Heading B5N [Also in Division B8] A laminate comprises a sheet 20 of paper, fabric or plastics material and a blanket 21 constituted by a flat plastics material sheet 22 heat sealed to an embossed plastics material sheet 23 throughout the narrow areas between the embossments to form a plurality of hermetically sealed cells 25. British Patent Specification 978,654 is referred to.