baber/WOPTO huggingface dataset:
Patent GB-1203155-A (GB)
Title: Method of lessening early discoloration of polyvinyl chloride resins when heated and compositions therefor
IPC: C08K5/37
Filed: 1968-11-20
Abstract: 1,203,155. Stabilized polyvinyl chloride. ARGUS CHEMICAL CORP. 20 Nov., 1968 [7 Dec., 1967] No. 55039/68. Heading C3P. Polyvinyl chloride resins are stabilized by addition of a liquid stabilizing composition which comprises (a) a diorgano tin mercaptide and (b) an alpha-mercapto carboxylic acid, present in 0.1-15% by weight of (a). The diorgano tin mercaptide contains two alkyl and/ or cyclo alkyl radicals of 3-6 carbon atomsper tin atom and from one to two organic groups, either hydrocarbon or heterocyclic and having 2-30 carbon atoms linked to the remaining two valences of the tin atom through two mercapto sulphur atoms, exemplified compounds being dibutyl tin bis (4-t-butyl thiophenate), dibutyltin di(auryl mercaptide), dibutyltin di(tridecyl mercaptide), dibutyltin di- (dodecyl mercaptide) and trimeric dibutyltin ethylene dimercaptide terminated by dodecyl mercaptide groups. Component (b) of the stabilizer has 3-30 carbon atoms and is exemplified by thiolactic acid and alpha mercaptolauric acid. Polyvinyl chloride homopolymers are stabilized with the exemplified components (a) and (b), the mixtures optionally containing mineral oil stearic acid, isooctylepoxy stearate, dioctylphthalate and ABS impact modifier.
Patent GB-1212959-A (GB)
Title: Improvements in or relating to marine derricks
Inventor: KURIBAYASHI SADATOMO
IPC: B66C23/60
Filed: 1969-11-13
Abstract: 1,212,959. Ships' derricks. S. KURIBAYASHI. 13 Nov., 1969, No. 55620/69. Heading B8B] A marine derrick boom 4 is pivoted to a gooseneck member 3 by a pin 5. The longitudinal pivoting axis of the gooseneck member is disposed at an angle #, normally 10 to 40 degrees, to derrick post 1 so that its upper part is closer to the post 1 than its lower part. A swivel ring 7 is mounted at the top of the boom 4 and may have four or two protruding lugs, Figs. 3 and 4 (not shown), for securing wires and blocks.
Patent GB-1337738-A (GB)
Title: Sonar transducer housing and method of its manufacture
IPC: G10K11/00
Filed: 1970-11-24
Abstract: 1337738 Subaqueous transducers THOMSON-CSF 24 Nov 1970 [25 Nov 1969] 55917/70 Heading H4J [Also in Division B5] The entire volume of a sonar transducer housing 3 defined by its outer surface is a substantially homogeneous solid except for the pocket or pockets filled with one or more transducers 1. The housing 3 is transparent to sound waves created by the transducers 1. It has a specific gravity approximating that of the liquid medium in which it is immersed (e.g. water) and sound is propagated through it at a velocity substantially identical with the velocity of propagation in the liquid medium. The material has a sheer modulus of approximately zero. The transducers 1 are spaced within the housing outer surface by a distance substantially greater than the wavelength of waves propagated by the transducers 1 through the housing 3 into the water. Angle pieces 5 secure it to a base 6 . Electrical connections 2 are carried through the base 6 so that acoustic vibration is isolated. A suitable housing material comprises a polyisocyanate cross-linked with diols and/or triols. It has a Shore hardness of about 60A. Accelerators, plasticizers and stabilizers may be added. The housing 3 is cast in a mould preheated to less than 100 C. It is cast by gravity under vacuum. The material is degassed as it is introduced and during initial hardening. Polymerization is carried out at less than 100 C. Thus the transducers 1 are not damaged by high temperatures. Alternatively the transducers 1 are inserted into the housing after the moulding process, dummy elements being used during moulding.
Patent GB-1456020-A (GB)
Title: Centrifugal pumps for liquids method  of making a drained floor
IPC: F04D29/22
Filed: 1972-12-06
Abstract: 1456020 Centrifugal pumps LUCAS INDUSTRIES Ltd 29 Nov 1973 [6 Dec 1972] 56203/72 Heading F1C A centrifugal pump comprises a casing 10, 11  having an inlet 12 and an outlet 13, and an impeller comprising vanes 19 inter-connecting a centre body 16 and a shroud 18, the vanes being formed with slots 19d permitting flow from one side of each vane to the opposite side, and each vane is reversely curved at its inner end 19b towards the direction of impeller rotation so as to reduce shock and the  resultant tendency to cavitation. Each slot 19d is nearer the impeller axis at the high-pressure side of the vane 19 than at the low-pressure side to provide a centrifugal pressure gradient which opposes flow along the slot due to the pressure difference caused by "bluff body" effects until the pressure difference exceeds the pressure gradient. The flow ensures that the pressure behind each vane does not become so low that the liquid boils. Shorter vanes 20 are provided between the vanes 19. Still shorter vanes may be provided between the vanes 19, 20.
Patent GB-1115600-A (GB)
Title: Laundry apparatus
IPC: D06F34/08
Filed: 1966-12-16
Abstract: 1,115,600. Washing machines. PHILCO - FORD CORPORATION. 16 Dec., 1966 [9 Feb., 1966], No. 56367/66. Heading D1A. A washing machine having two distinct washing zones has means for separately circulating the wash fluids through treatment zones and returning them to the wash zones. The machine comprises a perforated receptacle 15 supporting a second receptacle 30, perforated at 37. Water is supplied from a mixer, to either or both receptacles, via nozzles 47, 50; water entering receptacle 15 via slots 17. Receptacle 30 is filled so that water overflows through perforations 37 into trough 36. During washing, water from the tub 16 is extracted and recirculated via a filter 51 on nozzle 50 and water from receptacle 30 flows into trough 36 via a filter 39 and is returned via a nozzle 53. In a modification additives, e.g. bleaching agents, are introduced to the circulating fluids. During washing clothes in receptacle 30 may be rinsed and the excess water pumped from trough 36 to the overflow 62. During spin drying, after washing and rinsing stages, water is expelled through overflows 62, 46.
Patent GB-1414128-A (GB)
Title: Stockings or socks
IPC: A41B11/12
Filed: 1971-12-06
Abstract: 1414128 Stockings ST PETER SPORTING GOODS LTD 27 Nov 1972 [6 Dec 1971] 56561/71 Heading A3V A sock or stocking is formed with a longitudinal slit 3 extending downwardly from its fold-line 4, or top edge, the edges of the slit carrying complementary pieces 5 and 6 of filamentary hook and loop fastener material so that the edges of the slit may be retained in a closed or overlapping relationship to hold the stocking in position on a wearer's leg. In an alternative embodiment the slit may be replaced by a pleat. The inside of the stocking may be provided with padding.
Patent GB-1328916-A (GB)
Title: Polymers containing pyrazole units and their manufacture
IPC: C08G18/64
Filed: 1971-12-07
Abstract: 1328916 Polymers containing pyrazole rings LABOFINA SA 7 Dec 1971 [21 April 1971] 56840/71 Heading C3R [Also in Division D1] Polymers having pyrazole rings contain the following repeating units distributed at random where Ar is a phenylene radical and X is the radical of a compound which is an electron acceptor, e.g. the radical of a carboxylic acid, thiocarboxylic acid, sulphonic acid, phosphonic acid, mono- or poly-isocyanate, thiocyanate, cyanuric acid or trimer of phosphonitrilic chloride. The polymers are obtained by reacting polymers having the above randomly distributed units but where X is hydrogen (described in Specification 1,275,353) with the electronacceptor compounds, preferably in more reactive forms, e.g. the acid chlorides and anhydrides. The starting polymers may be in the form of fibres, films or moulded articles and the electronacceptor compounds may contain radicals of dyestuffs so that the product is coloured, or radicals such that the elasticity or fire-resistance of the polymer is improved, or radicals which cross-link the polymer so that it is resistant to attack by solvents. In examples pyrazolecontaining polymers are reacted with benzoyl chloride, cyclohexanecarboxylic acid chloride, m-acetyl benzoyl chloride, benzenesulphonyl chloride, sulphobenzoyl, thiophene carboxylic acid chloride, acetic anhydride, acetyl chloride, lauroyl chloride, propane sultone, phenyl isocyanate and phosphonitrilic chloride trimer; fibres of pyrazole-containing polymers are reacted with compounds containing the radical of alizarin to dye them red, and with pyromellitic anhydride and pyrazine tetracarboxylic acid dianhydride to make the fibres more resistant to solvents.
Patent GB-1157000-A (GB)
Title: Improvements in or relating to Transfer Storage Cells
IPC: H03K3/037
Filed: 1966-12-22
Abstract: 1,157,000. Matrix stores. INTERNATIONAL BUSINESS MACHINES CORP. 22 Dec., 1966 [27 Dec., 1965], No. 57535/66. Heading G4C. [Also in Division H3] A storage matrix is formed from binary storage cells, (see Division H3), each constituted by a transistor Schmidt trigger arranged to be set into one of its states by coincident pulses of opposite polarity applied to the base and collector respectively of one transistor. As shown, setting into the state in which 10 is conductive is effected by applying a + 3 V pulse to the base of 12 in the word line coincidently with a negative pulse to the collector via the bit line. Alternatively, setting is effected by a negative pulse on the word line, this also providing a destructive read-out at 50 where the sense amplifier detects whether the pulse has effected resetting. Non-destructive read out is effected by applying a positive pulse to the common emitter resistor, a change of current being detected at 50 only if the circuit is in the state in which 10 is conducting. Resetting the circuit is effected by applying a positive pulse alone to the base of 12 from the word line. Collector resistor 30 may be replaced by an emitter follower. The matrix (Fig. 2, not shown) has sense lines and bit lines respectively common to a column of cells and word lines common to rows of cells.
Patent GB-1152377-A (GB)
Title: Sound Generators
IPC: H04R7/04
Filed: 1966-12-22
Abstract: 1,152,377. Sound generator. NIPPON GAKKI SEIZO K.K. 22 Dec., 1966 [5 April, 1966; 3 May, 1966], No. 57577/66. Heading G5J. [Also in Division H4] A sound generator, for use in an electronic musical instrument, comprises a diaphragm 1 which is adapted for flexural but not reciprocating movement by being mounted such that its periphery is clamped between a pair of frame plates 2, with a layer of precompressed cushioning material 3 located between the diaphragm and the plates. The flat diaphragm 1 is made of foamed polystyrene (specific gravity 0À03) and the cushion is made of polyurethane foam, rubber or foamable synthetic rubber. The precompression is effected by means of a separate spacer 4 or a spacer integral with one plate (Fig. 5, not shown), its length being chosen in dependence on the desired compliance. The thickness of the cushion is less than half the normal amplitude of vibration of the diaphragm. An electromagnetic driver 15 is attached to the centre of the diaphragm.
Patent GB-1372731-A (GB)
Title: Cross-mixing baffle for powder material
IPC: B01F5/24
Filed: 1971-12-13
Abstract: 1372731 Electro-photographic developing apparatus XEROX CORP 13 Dec 1971 [14 Dec 1970 29 Dec 1970] 57764/71 Heading G2H [Also in Division B1] A device 25 for maintaining a homogeneous developer mixture of toner and carrier particles in an electrostatic copier comprises a series of channels 40, 41 sloping downwards in one direction and a series of channels 42, 43 sloping downwards in the opposite direction. In use, a magnetic brush 14 applies developer to a drum 10 and excess developer is picked up by a magnetic brush 20 and allowed to slide down a plate 26 to the device 25. The channels 40-43 split the developer into diverging flow paths so that it is agitated and mixed before returning to brush 14. An alternative mixing device of unitary structure is depicted in Figs.4, 5 (not shown).
Patent GB-1324428-A (GB)
Title: Web slitting apparatus
IPC: B26D7/26
Filed: 1970-12-15
Abstract: 1324428 Web slitting machine BELOIT CORP 15 Dec 1970 [16 Dec 1969] 59514/70 Heading B4B 6 A web slitter assembly comprises a pair of rotatable disc blades 12, 15 arranged to be moved into co-operation with each other to slit  lengthwise a web 17 passing between the blades, the blades being carried by mountings 11, 14 slidable on rails 13, 16 respectively. The blade 12 is mounted on an arm 35 pivoted at 40 on a frame 25 which is movably mounted on a rail 13 by means of a rack-and-pinion device 30, 52, Fig. 2; the frame can be locked in position by a fluid-pressure actuated piston 54. The arm is raised or lowered in order to obtain the correct overlap between the blades by means of a piston device 58, 59, Fig. 2. The blade 12 is freely rotatable on a bearing (67), Fig. 3 (not shown), mounted on a non-rotatable shaft (68) which is movable axially by means of a piston device (71, 72) in order to obtain a side-loading on the lower blade 15. In order also to provide a toe-in of the blade 12 relative to the blade 15, the arm is angularly movable about a vertical axis by means of a cam-and-pin means (85, 87). The blade 15 is also freely rotatable on a bearing (110), Fig. 5 (not shown), mounted in an arm 95, Fig. 4 which, is carried by a slide 96, 97 movable on a rail 16 by means of a rack-and-pinion device 16R, 116, Fig. 4. The slide can be locked in the adjusted position on the rail either by a fluid-pressure operated piston 105 or by a bolt 101.
Patent GB-595839-A (GB)
IPC: B64D33/10
Abstract: 595,839. Aircraft cooling systems. BLACKBURN AIRCRAFT, Ltd., and FENTON, G. B. July 12, 1944, No. 13316. [Class 4] A cooling system for an aircraft includes a duct in which airflow is set up by static-pressure adjacent the point of maximum suction differences created by the passage of a wing through the air, and whose outlet is situated adjacent the point of maximum suction created by the airflow over the wing in the side of the fuselage or in the upper surface of the wing, whereby the volume of air flowing through the duct at high wing incidences and low air speeds is substantially the same as at low wing incidences and high air speeds. The inlet of the duct may be located to the rear of the outlet so that the air flows forwardly through the duct, and arranged in the surface of a wing, fuselage or nacelle. In one form, Fig. 2, a cooler 6 is located in a duct 1 having an inlet 3 and outlet 5 in the side of the fuselage 2 adjacent the trailing and leading edges of the root of the wing 4. The outlet 5 is curved so as to direct the air rearwardly, or may be provided with a cowl or fairing having a rearwardly-directed opening. The inlet and outlet may be situated on opposite sides of the fuselage. In a second form, Fig. 3, the outlet 5 is in the side of the fuselage and the inlet 3 in the undersurface thereof, vanes 7 being provided to distribute the incoming air.
Patent GB-1496488-A (GB)
Title: Servo-mechanism for an internal combustion engine throttl
IPC: F02D11/08
Filed: 1974-12-10
Abstract: 1496488 Automatic control of position JOSEPH LUCAS Ltd 10 Dec 1974 [22 Dec 1973] 59666/73 Heading G3N [Also in Division F1] A control system for an internal combustion engine throttle comprising a throttle opening motor 11, a linear feedback potentiometer 21 having its slider 23 mechanically coupled to the motor output, and a comparator circuit 18 arranged to produce an output to cause energization of the throttle opening motor when the magnitude of a demand signal from computer 19 to the comparator circuit exceeds that of the feedback signal from the potentiometer and the feedback circuit includes a resistor 23 connected between the slider of the potentiometer and one end thereof. The motor 11  comprises a fluid-pressure powered device, e.g. bellows 11, having a fluid-pressure connection to the air inlet manifold downstream of throttle valve 10 and a return exhaust connection to the manifold upstream of valve 10 via a fixed flow restrictor. A control valve 13 controlled by the comparator output is connected in the fluid-pressure line so that movement of the bellows can cause corresponding movement of valve 10 through linkage 12.
Patent GB-1412740-A (GB)
Title: Waste disposal apparatus
IPC: B02C18/22
Filed: 1971-12-22
Abstract: 1412740 Waste disposal apparatus IMPERIAL MACHINE CO (PEELERS) LTD 19 Dec 1972 [22 Dec 1971] 59710/71 Addition to 1211074 Heading B2A  A waste disposal apparatus 1 of the kind described in Specification 1211074 includes two or more openings providing access from at least two sides. As described, the apparatus fits a partition 4 between two cubicles. Operation of a handle 13 in either cubicle raises a cover plate 12 closing off the rotor and actuating a microswitch 14 to immobilise the motor 3. The plate 6 receiving the waste. Return of the handle lowers the plate renders the motor operable, and closes an opening 5 by its associated cover plate 6.
Patent GB-1369619-A (GB)
Title: Missile control apparatus
IPC: F41G7/30
Filed: 1971-12-29
Abstract: 1369619 Radar ELECTRONIQUE MARCEL DASSAULT 29 Dec 1971 [29 Dec 1970] 60524/71 Heading H4D A missile control apparatus includes a single radar system for the control of the missile altitude and for the proximity fuse for the explosive charge. In a first embodiment (Fig. 1) a sawtooth frequency modulator 10 provides the transmitted signal and reflected signals are heterodyned at mixer 20 to provide a signal whose frequency corresponds to the missile altitude (normally about 20 metres). A first control loop including frequency discriminator 30 and voltage dependent oscillator 31 provides a signal 34 indicating the altitude which is used to control the missile flight. Filter 24 in a second path selects the beat frequency signal 22 corresponding to low altitudes (e.g. 0-10 metres) which indicates the proximity of the target. Trigger 25 detects these signals and actuates the warhead. In a second embodiment (Fig. 2, not shown), a variable slope sawtooth generator is used and a frequency discriminator connected to the output of mixer (20) varies the slope to provide a constant beat frequency. The discriminator output controls the missile flight and also determines the frequency of an oscillator (51) whose output is mixed with the constant beat frequency from mixer (20). A threshold detector operates the warhead as above.
Patent GB-1280260-A (GB)
Title: Coating ferrous metal with copper
IPC: C23C18/38
Filed: 1970-12-22
Abstract: 1280260 Coating ferrous metal with copper CHUBB FIRE SECURITY Ltd 22 Dec 1970 [30 Dec 1969] 60913/70 Heading C7F The surface of a ferrous metal is plated with copper by contacting it with an aqueous acidic solution containing copper ions, halide ions, a polyalkylene glycol, and a dianiline compound having the formula:- where R is an alkylene group containing from 1 to 6 carbon atoms, R<SP>1</SP> is an alkyl group containing from 1 to 4 carbon atoms, x is halogen or hydrogen and a is an integer from 0 to 2. The copper ions are preferably derived from copper sulphate and the pH of the solution maintained within the range 0 to 2. Before coating a steel wire, the wire is pickled in hydrochloric acid, rinsed in water, treated at 80 C. with an aqueous solution of alkali metal hydroxide and alkali metal permanganate and then washed with water. After being coated with copper the wire is immersed in a lubricant composition comprising borax, soap and trisodium phosphate at 80C., dried at 180C. and drawn through two dies to reduce the diameter of the wire.
Patent GB-1211767-A (GB)
Title: Apparatus for distributing disseminated material
IPC: C03B37/04
Filed: 1968-12-23
Abstract: 1,211,767. Gearing for conveying rotary motion. OWENS-CORNING FIBERGLAS CORP. 23 Dec., 1968 [28 Dec., 1967], No. 61196/68. Heading F2Q. [Also in Division D1] Cyclic variation is produced in the speed of shaft 51 by transmitting the rotary motion from motor 32 via crank arms 37, 41, 41<SP>1</SP>, 371. Crank arms 37, 37<SP>1</SP> are fixed off centre on gears 36, 50. The ends of the crank arms are located in slotted force transmitting members 42, 42<SP>1</SP> which are pivoted on shafts 43, 43<SP>1</SP>. Since the pivots of latter shafts 43, 43<SP>1</SP> are offset from the centres of rotation of the crank arms, the instantaneous speed transmitted from crank arm 37 to crank arm 41 (and from arm 37<SP>1 </SP>to arm 41<SP>1</SP> respectively) is cyclically varied. This cyclic variation is itself variable by moving pivot shafts 43, 43<SP>1</SP> by means of lead screws. The cyclic variation produced by crank arms 37, 41 occurs twice for each cycle of variation produced by arms 41, 41<SP>1</SP> since gears 48, 50 are in a 1 : 2 ratio. In an alternative embodiment (Figs. 5 and 6), the slotted force transmitting members 42, 42<SP>1</SP> are replaced by slotted discs which are rotatably mounted in movable bearings.
Patent GB-1283999-A (GB)
Title: Machine elements having coated pressfit portions
Inventor: GOTOH S
IPC: F16J15/02
Filed: 1969-12-16
Abstract: 1283999 Coated press-fit elements NIPPON OIL SEAL INDUSTRY CO Ltd 16 Dec 1969 [17 Dec 1968] 61264/69 Heading B2E A method of providing a coating on a metallic press-fit surface of a machine element to improve the sealability thereof comprises applying to the substrate a thin layer of a coating composition comprising a natural or synthetic rubber latex. Suitable rubbers are acrylonitrile-butadiene rubbers, styrene-butadiene rubbers, polyacrylic acid ester rubbers and carboxylated polyacrylic acid ester rubbers. The lattices may have a solids concentration of 40-50%. The machine elements may be previously coated with phenolic resin bonding agent.