baber/WOPTO huggingface dataset:
Patent GB-1413667-A (GB)
Title: Propelling devices
IPC: B63B34/56
Filed: 1972-12-05
Abstract: 1413667 Swimming aids S YAMANAKA 5 Dec 1972 [3 Feb 1972 (2) 18 July 1972 25 Aug 1972] 56158/72 Heading A6D [Also in Division B7] In a propulsion device comprising one or more propelling elements attached to a sandal C worn by a swimmer, the or each propelling element comprises a pair of opposed blades B pivoted to support A so as to be relatively movable apart or together. The blades have convexly curved inner faces at and adjacent their ends 15 opposite to their pivots 12.
Patent GB-1209786-A (GB)
Title: Stern constructions for marine vessels having propellers with detachable blades
Inventor: HERBERT COLIN WRAY
IPC: B63H1/20
Filed: 1967-12-11
Abstract: 1,209,786. Stern arrangements; detachable propeller blades. GLACIER METAL CO. Ltd. 10 Dec., 1968 [11 Dec., 1967], No. 56228/67. Headings B7S and B7V. A ship having a propeller projecting under an overhung stern 29 is characterized in that the propeller has dismantlable blades 9 and the overhung stern has a closable passage 33 located over the propeller through which the blades 9 can be passed between the ship and the propeller bows 1. Arrangements are provided for producing a flow of purging fluid across the mating faces of each blade root and the propeller boss during assembly.
Patent GB-1435626-A (GB)
Title: Moulding method and apparatus
IPC: B29C33/00
Filed: 1973-12-04
Abstract: 1435626 Moulding articles with curved passages RICHMOND MARINE Ltd 4 Dec 1974 [4 Dec 1973] 56245/73 Heading B5A An article having a curved passage therethrough, e.g. a rubber stock 1, is moulded about first and second cores 56, 60 which are removable from the article in mutually inclined directions and which form part of the curved passage, and a third core 70 which is removable through a sidewall 57, 61 to the passage, e.g. in a direction perpendicular to the direction of removal of the other cores and which forms a part of the curved passage which is re-entrant with respect to the other cores. The third core 70 is part of one of two outer mould portions which with the cores form side walls 5 of the rudder stock, the other mould portion having a core 80 for forming a curved hole 24 in the boss 4 of the rudder stock to receive a spring 25. An extension 58 of core 56 forms a hole 6 for insertion of a tiller 7 which engages the spring 25 and an extension 13 of the rudder 2, and an extension 81 of the core 60 forms a fixing hole in a lug of the rudder stock.
Patent GB-1368477-A (GB)
Title: Stock-cutting measurement systems
IPC: B23D25/02
Filed: 1971-12-03
Abstract: 1368477 Measuring lengths of stock material BRITISH STEEL CORP 30 Nov 1972 [3 Dec 1971] 56285/71 Heading G4H The length of pieces cut from steel strip stock 12 by a flying shear 10 is determined by counting at 40 increments of advancement of the stock over a given plural number of cutting operations. A spring mounted photo-electric rotary displacement digitizer 15 is driven by a rotor (26) making frictional engagement with the stock, permanent magnets (32) surrounding the rotor beneath a brass surface (22) over which the stock is guided to attract it to the rotor. After ten cutting operations the counter 40 is reset, its contents being passed to a store 46 where a zero offset is introduced to compensate for wear of the roller. Either the total length of the ten pieces may be displayed or the average length, by shift division and rounding the least significant figure.
Patent GB-1448289-A (GB)
Title: Thermoelectrically operable devices for intermittently ener gizing a signal means
IPC: B60Q1/38
Filed: 1973-12-05
Abstract: 1448289 Thermal switches KLAXON 5 Dec 1973 56453/73 Heading H1N A thermal flasher comprises a hot wire 6 which when it expands allows to pivot anticlockwise an insulator 3 which tilts an arm 10 carrying a contact 12 and snaps over a blade spring 1 to break connection with a fixed contact 8 connected to the fixed end of hot wire 6 to break the circuit through wire 6 and start it cooling and makes contact with contact 12, contraction of wire 6 when cooling pivoting insulator 3 in the opposite direction causing the end 4 of blade 1 to tilt further and engage a stop 13 to separate it from contact 12 which keeps moving under the continued pivoting of insulator 3, the pressing of end 4 of blade 1 on stop 13 causing it to snap back into engagement with contact 8 to restart the cycle. Whilst wire 6 is in circuit with lamps 15 its resistance is such that the lamps do not light, but when wire 6 is out of circuit, the current path being through arm 10, the lamps 15 light. In an alternative circuit, Fig. 4 (not shown), a relay (22) is in circuit to energize a warning lamp (26) whilst lamps 15 are both alight and cut-out lamp (26) of a lamp 15 fails. Blade spring 1 may comprise two arms, Fig. 5 (not shown), arm (18) being linked to put the other arm (20) into compression and cause it to bend, arm (20) also having a seat 21 to engage insulator 3, or it may comprise three arms, Fig. 6 (not shown), the outer arms being linked and the centre arm being compressed and bent.
Patent GB-1448995-A (GB)
Title: Magnetic separators
IPC: B03C1/02
Filed: 1973-12-07
Abstract: 1448995 Magnetic separators WEHR CORP 7 Dec 1973 [26 Dec 1972] 56752/73 Heading B2J A magnetic separator comprises an endless belt 20 supported for movement around a closed loop having an upper portion between pulleys 22, 28 and a lower portion, with a rectilinear part upstream of a curved part 70, between pulleys 26, 28; and a magnetic assembly 36, constituted by an electromagnet 40, 42, permanent magnets 56-62 and a pole piece 52, arranged to produce a magnetic field whereby magnetic material lying below the lower portion of the belt 20 is attracted to and travels with said belt along the rectilinear part and around the curved part. In use, a conveyor 12 delivers refuse 18 to the separator and most non-magnetic material in the refuse falls by gravity into a receptacle 14 whilst magnetic material is attracted to the belt 20, is temporarily dislodged from the belt by centrifugal action at the curve 70 and is then carried along to a point where the magnetic field terminates, when it is then discharged on the side of a splitter baffle 16 opposite to the receptacle 14. Any non-magnetic material, such as paper, which is entangled with the attracted magnetic material is freed by the action at the curve 70 and falls into the receptacle 14, thus improving the separation efficiency. A second embodiment, having the rectilinear part of the belt at a sharper angle to the horizontal than in Fig. 1 and having another magnetic assembly at the curved part, is described with reference to Fig. 3 (not shown).
Patent GB-1329300-A (GB)
Title: Nursing cabinets
IPC: A61G11/00
Filed: 1970-12-04
Abstract: 1329300 Treatment chambers PIELKENROOD-VINITEX NV 4 Dec 1970 [18 Dec 1969] 57597/70 Heading A5R A treatment chamber, for example for babies, comprises a bottom 1, transparent side and top walls 9, 12, and a back wall provided with dust filters 7 connected to an air supply assembly with at least one blower 5, the front wall 11 being hinged and arranged so that it cannot be completely closed. The front wall is preferably in two halves 14, 15 connected by a hinge 17 which may be arranged to fold inwards or outwards and the output of the blowers may be dependent on the extent to which the front wall is opened. Apertures (25, 31) Fig. 1, (not shown) may be provided in the front or side walls, which apertures may be provided with gloves or used to transmit fluids to the interior. Further apertures (24) in the front wall may be provided to allow a passage of air to keep the sidewalls dustfree. An auxiliary bottom 26 may be provided to support a baby and may be surrounded by walls 29. The auxiliary bottom may be held on supports 27 which pass through the bottom 1 in a dust-proof manner for connection to a weighing machine. The upper wall may be surmounted by a light source 12 and is preferably transparent to X-rays.
Patent GB-1099768-A (GB)
Title: Method for the preparation of arylisothiocyanates
Inventor: RASSCHAERT ANTOINE THEOFIEL
IPC: C07C331/28
Filed: 1966-12-28
Abstract: Aryl isothiocyanates are prepared by reacting arylamines with NH4SCN in an inert solvent, in presence of excess HCl.
Patent GB-1169210-A (GB)
Title: A Process for the Production of Spherical Oxidic and Carbidic Particles
IPC: G21C3/62
Filed: 1966-12-29
Abstract: 1,169,210. Nuclear fuel; plutonium oxide and carbide. NUKEM NUKLEAR-CHEMIE und METALLURGIE G.m.b.H. 29 Dec., 1966 [31 Dec., 1965], No. 58128/66. Heading G6C and G6R. [Also in Division C1] Spherical particles of the oxide(s) of U and/or Th and/or Pu are made by adding to an aqueous sol of said oxide(s), which preferably contains 1-4 moles/l. of metal a substance which causes gelation by yielding NH 3 , preferably hexamethylene tetramine in the form of 0À5-2M aqueous solution. The mixture is added dropwise into a liquid immiscible with water, suitably paraffin oil at a temperature above 60‹ C, whereby the sol solidifies to form spherical particles. It is preferred that the temperature of the sol and the substance yielding NH 3  should be below gelation temperature before mixing and that gelation occurs in the immiscible liquid at a temperature above 60‹ C. The particles may be sintered at a temperature between 900‹ C. and 2000‹ C. Carbon black or graphite may be suspended in the sol or in the NH 3 -yielding substance and the particles obtained may be sintered, preferably at 1300‹-2500‹ C, to form carbidic particles. The oxide or carbide particles may be used as nuclear fuel.
Patent GB-1317491-A (GB)
Title: Injection lance
IPC: C21C5/46
Filed: 1970-12-10
Abstract: 1317491 Blowing lances DEMAG A G 10 Dec 1970 [20 Dec 1969] 58671/70 Heading F4B A lance for delivery of oxygen or powdered lime comprises a shaft having a feed conduit 5 and a jacket 2 with a nozzle head 9 at one end, the conduit 5 and jacket 2 being resiliently interconnected at a point distant from the head 9 to compensate for differential thermal expansion. Flanges 16, 17 are welded to a supply conduit 1 and the jacket 2 respectively, and are spaced by pins 19 which may be expansible. An extension piece 24 welded to the feed conduit 5 is slidable within the flange 17 and about the conduit 1, and a collar 28 of the piece 24 is biased away from flange 17 by compressions springs 30 guided on pins 31. Sealing rings 32 33 are provided. Specification 1,293,834 is referred to.
Patent GB-1373509-A (GB)
Title: Iron corrosion inhibitors
IPC: C08G65/00
Filed: 1971-12-23
Abstract: 1373509 Inhibiting corrosion FARBWERKE HOECHST AB 23 Dec 1971 [28 Dec 1970] 60065/71 Heading C7E [Also in Divisions C2 and C3]  A corrosion inhibiter comprises a compound of the general formula: in admixture with a solvent or diluent. In the general formulae R 1  represents a linear or branched alkyl radical having fine 4 to 18 C atoms and being attached to the 2,- 4- or 6- position of the benzene nucleus; R 2  represents a H atom, a linear or branched alkyl radical having up to 9 C atoms or a moiety of the formula: R 3  represents a linear or branched alkyl radical having up to 4 C atoms, a # hydroethyl group or a moiety of the formula: in which n represents an integer of from I to 30 and m represents 0 or 1 and in which formula an integer number not exceeding n/3 of the units within square brackets may be replaced by units of the formula -[-OC 2 H 4 -S-C 2 H 4 (OCH 2 ) m -]- and A represents one of the anions Cl<SP>-</SP>,Br<SP>-</SP>,I<SP>-</SP>,CH 3 OSO 3  and ¢SO<SP>2-</SP> 4 . The corrosion inhibiter may additionally comprise an alkynol e.g. propargyl alcohol in a concentration of up to 15 wt per cent of the sulphonium salt. The corrosion inhibitor is generally used in conjunction with hydrochloric acid.
Patent GB-2002869-A (GB)
Title: Plasmaphoresis member
IPC: F16L55/10
Filed: 1978-08-08
Abstract: The invention relates to apparatus for use in plasmaphoresis. A plasmaphoresis member is provided for coupling a nozzle to the end of a tube 5. The member comprises a sleeve 1 which sealingly surrounds the end of the tube. A sealing cap 4 seals the end of the sleeve. The sealing cap has a breaking point 2 therein such that part of the sealing cap can be broken off to enable the tube and/or the sleeve to receive the nozzle. The plasmaphoresis member can be used in blood transport and transfusion apparatus and in other cases where an easily breakable sterile seal is required. <IMAGE>
Patent GB-2011719-A (GB)
Title: Three-phase high voltage circuit interruption
IPC: H01H33/59
Filed: 1978-12-13
Abstract: A method for interrupting an inductive load in a three-phase, high voltage network by means of a switch having a quick dielectric recovery, in particular a vacuum switch, without the occurrence of current "chopping", comprises delaying interruption of two of the phases relative to that of the other phase by an interval equal to at least 1/3 of a cycle plus the minimum arcing time in the undelayed phase. A cam-actuated switch may be modified to provide the requisite delay.
Patent GB-2018173-A (GB)
Title: Working Gem Stones
IPC: B24B9/16
Filed: 1979-01-03
Abstract: In a bruting or coning machine, two stones D1 and D2 are rotated in the same sense, but at slightly different speeds, and are reciprocated relative to each other while they are moved towards one another to provide feed. A stroboscope can be synchronized with the rotation of one of the stones so that the other stone can be examined as it appears to rotate slowly, and more generally the stroboscope can be used to examine any pair of stones which are grinding one another at slightly different speeds of rotation. <IMAGE>
Patent GB-2012928-A (GB)
Title: Improvements in or Relating to Heating Tanks for Liquids
IPC: F24H1/20
Filed: 1979-01-12
Abstract: The invention provides a baffle 10 disposed in a heating tank 1 for liquids so as to intercept and disperse an incoming stream of relatively cold liquid from inlet 5. This provision inhibits corrosion of the tank, and is suitable in particular for application in water heating tanks having a heating element 8 and forming part of central heating installations. <IMAGE>
Patent GB-2010140-A (GB)
Title: Workholding
IPC: B23Q15/007
Filed: 1979-01-24
Abstract: A work holding device comprises a device for gripping a workpiece, the device being provided with detection means for determining the value of a force between the device and the workpiece. A jaw 12 of a chuck (11) is provided with a force transducer (22) adjacent its gripping face. Wires (23) pass from the transducer through the chuck and a hollow spindle (15) to a slip ring device (24) from which signals can be transmitted to a stationary de-coding and display device (26) <IMAGE>
Patent GB-2016678-A (GB)
Title: Method and Apparatus for Measuring the Thicknesses of Film Layers Using Infrared Radiation
IPC: G01B11/06
Filed: 1979-03-02
Abstract: To measure the thicknesses of resin layers forming a composite multilayer film or sheet infrared rays of sample wavelengths, each equal to an infrared absorption wavelength of at least one of the film layers, and at least one reference wavelength different from any infrared absorption wavelength of each film layer, are projected onto the multilayer film. Ratios are obtained between the amounts of infrared at the sample and reference wavelengths transmitted through the multilayer film. The thicknesses are obtained by solving a simultaneous equation including the ratios and the infrared absorption coefficients of the film layers at the sample and reference wavelengths as coefficients and the thicknesses of the film layers as unknowns. It is not necessary for each sample wavelength to be affected by only one of the layers.
Patent GB-2021133-A (GB)
Title: Reactive Dyes
IPC: C09B62/006
Filed: 1979-03-20
Abstract: Reactive dyestuffs which in the free acid form are of the formula:   <IMAGE>  wherein  NiPc represents a nickel phthalocyanine residue;  y=1 or 2;  x=1, 2 or 3;  z=0 or 1 providing that x+y+z does not exceed 4;  n is 1 to 6;  R is H, C1-4 alkyl optionally substituted by OH, Cl or CN;  T is H, CN, CONH2, SO3H, C1-4 alkyl or CH2SO3H; A is a phenylene group substituted by 0-2 SO3H and optionally by CH3 or OCH3; and  Q is a cellulose-reactive group. The dyes are valuable greenish- yellow dyes having good light fastness and good resistance to alkali and chlorine.
Patent GB-2021099-A (GB)
Title: Substituted anthraquinone sulfonic acids useful as oxidation-reduction reagents for a wet desulfurization process and a process for preparing the same
IPC: C07C309/60
Filed: 1979-04-09
Abstract: An oxidation-reduction reagent for a wet desulfurization process, comprises (a) one or more compounds chosen from salts of substituted anthraquinone-sulfonic acids of the general formulae:   <IMAGE> wherein M stands for a sodium atom, a potassium atom or an ammonium group, and n is an integer of 1 or 2, or (b) a mixture of a salt of anthraquinone-2,7-disulfonic acid and one or more compounds shown by the general formula (I) and/or (II). A process for preparing the compounds of the general formula (I) comprises subjecting benzophene 2,4-dicarboxylic acid, benzophenone 2,5-dicarboxylic acid or 2-(p-carboxybenzoyl) benzoic acid to dehydration and subsequently sulfonating, without isolation, of the 2-carboxyanthraquinone intermediate. A process of preparing the compounds of formula (II) comprises heating 2-phenoxyanthraquinone with fuming sulphuric acid, sulfur trioxide or chlorosulfonic acid.
Patent GB-2020759-A (GB)
Title: Gaskets
IPC: F16J15/10
Filed: 1979-05-03
Abstract: An elastomeric gasket 10 comprises a flat rubber piece 12 and a reinforcing core 14 embedded in said flat rubber piece, said reinforcing core being a weft-knitted or warp-knitted fabric, and being disposed substantially centrally in said rubber piece and coextensive therewith. The knitted fabric core 14 is such that, since the threads constituting the core 14 are looped into stitches that are interconnected, they are prevented from being pulled out at the screw holes even if they are caught by the screws while the latter are being threaded into place. In use the gasket may be disposed between interconnected frame members of a door or window. <IMAGE>
Patent GB-2025691-A (GB)
Title: Photovoltaic cell panel
IPC: H01L31/042
Filed: 1979-06-08
Abstract: In order to reduce or prevent absorption of water in the adhesive of a panel comprising at least one photovoltaic cell located between a transparent sheet and a second sheet bonded together using an adhesive material, the invention provides that another material is applied at least in part between the sheets 23 to form a moisture barrier 29 which surrounds the cell(s) 27 and the adhesive 24, 25, 26. The preferred adhesive material is polyvinyl butyral, and the preferred barrier forming material is selected from neoprene based adhesives, polysulphide adhesives and polyvipylidene chloride. When the latter is used a second barrier forming material such as polysulphide adhesive is preferably interposed between the adhesive and the polyvinylidene chloride. The adhesive is degassed under vacuum during the bonding of the sheets 23. <IMAGE>
Patent GB-2032290-A (GB)
Title: Mobile mixer and readymixed mortar delivery system
IPC: F02B3/06
Filed: 1979-07-05
Abstract: A mobile truck-mounted mixer for use in the distribution of a readymixed mortar is a self-contained unit (11) mounted on the chassis of a tipper truck (13). A body (14) provides a V-shaped hopper-like tank running lengthwise of the truck and contains a mixing screw which is rotated in one direction to impel the chamber contents against an inclined front end wall of the chamber to effect thorough mixing thereof, and in the opposite direction to impel the mixed contents towards a rear discharge aperture controlled by a valve (17) which discharges into an external adjustable chute (18). A diesel engine is connected to the front end of the mixing screw through a clutch and gearbox with reverse gear. All the engine, clutch and gearbox controls (41) and the engine instrumentation (42) are grouped at the rear of the mixer unit (11) so that they are accessible to an operator standing adjacent the discharge outlet. <IMAGE>
Patent GB-2030186-A (GB)
Title: Removing ash from stock suspension
IPC: D21D5/02
Filed: 1979-08-03
Abstract: Ash is removed from fibrous stock suspensions when processing waste- paper, in particular following a flotation process carried out to remove printing inks with the aid of chemicals by separating the stock suspension in a sorting strainer, the ash and a short-fibre portion passing through the strainer, after which separation into ash and fibres which can be used again is effected, while the pulp stock remaining in front of the sorting strainer is conducted away for further processing.
Patent GB-2030258-A (GB)
Title: Bowden control mechanism for hydraulic locking device
IPC: F16F1/22
Filed: 1979-08-14
Abstract: A control mechanism is provided for use with a hydraulic locking device 22 to permit the device to be unlocked under control of an operator. The control mechanism includes a lever assembly 10 fastened to the piston rod 20 of the hydraulic control device 22 and connected by a cable 14 to a remotely located push button assembly 12. When the operator presses the push button 62, the cable 14 is drawn causing the lever assembly 10 to move an operating rod 54 of the hydraulic locking device 22 to a release position thereby unlocking the device. The lever assembly 10 can be installed on the hydraulic locking device 22 without the use of tools by sliding a spring clip 28 which is a non-removable portion of the lever assembly 10. A threaded collar 76 permits the effective length of the conduit 16 to be altered to adjust the stroke of the mechanism. <IMAGE>
Patent GB-2064049-A (GB)
Title: A "slow rise" quick drop mechanism
IPC: F16H25/14
Filed: 1979-11-23
Abstract: A slow rise quick drop mechanism comprises a rotary cam (1) having a recess (5) on its surface which departs from the circular surface of the remainder of the cam (1) and a cam follower member (3) which is movable longitudinally and pivotably and having within it a shaped aperture (7) for receiving a central hub (4) on the cam (1), the arrangement being such that the surfaces of the aperture (7) and of the cam (1) together with possible movements of the follower (3) cause the follower member (3) to be raised out of the recess (5) in the cam (1) during rotation of the cam (1) in the first direction thus enabling the follower (3) to drop back rapidly into the cam recess (5) on rotation of the cam (1) in the opposite direction. <IMAGE>
Patent GB-2036765-A (GB)
Title: Soft contact lenses
IPC: G02C7/04
Filed: 1979-11-30
Abstract: The invention relates to soft contact lenses having a water content of at least about 30% and comprising a hydrated copolymer of a major proportion of an hydroxyalkyl acrylate or methacryalate, up to 12% by weight of any ethylenically unsaturated acid or anhydride, a minor proportion of a cross-linking monomer and a minor proportion of styrene or a substituted styrene, the free acid or anhydride groups being in salt form.
Patent GB-2065277-A (GB)
Title: Firing butt
IPC: F41J1/10
Filed: 1979-12-12
Abstract: A firing butt includes a target in a housing which includes an open frame. Overlying this in the direction of fire is a steel plate frame (9) to receive any projectile. A remote controlled roller blind closes the opening in the frame front and back. The target is positioned between the two portions of the roller blind and the equipment includes a remote automatic scoring system. The steel plate frame may be separated from the target housing by a gap and may have an outer rubber layer. The rubber layer and steel plate may be separated by a gap which may be filled with sand. <IMAGE>