baber/WOPTO huggingface dataset:
Patent GB-1377009-A (GB)
Title: Lead storage battery
IPC: H01M4/14
Filed: 1972-09-15
Abstract: 1377009 Lead-acid batteries MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 15 Sept 1972 [27 Oct 1971 (2) 9 Nov 1971] 42948/72 Heading H1B [Also in Division C7] In a lead storage battery the electrode plates of at least one polarity are made of pressed lead fibres wherein at least the periphery of these electrode plates are more strongly pressed than the remainder of these electrode plates and these hard-pressed regions are covered with a synthetic resin film. The lead fibres may be formed of an alloy consisting of lead and 0À1 to 0À3% by weight Ag, As and/or Sn, and made into an unwoven fabric. A mixture of lead fibres of 150-200 Á diameter with 30% by weight of 70-100 Á diameter is pressed to give the electrode fabric a density of 5À0-5À5 g./c.c. The hard-pressed peripheral regions 12 of the electrode, Fig. 3, have a density of at least 10 g./cc.' and for larger electrodes, as shown, an additional grid of hard-pressed portions spaced by 25-35 mm. is formed across the electrode. The hardpressed regions 12, covered with a thermoplastic synthetic resin film 13, have holes 14 therethrough by which the films 13 on opposite sides of the electrode are united. The peripheral hardpressed regions are preferably wedge-shaped and the region may be extended at the corner 12c of the electrode to which the lead piece 15 is welded, Fig. 12a. The electrodes intended as positive plates are protected by an ion-permeating porous thermoplastic synthetic resin bag, and electrodes intended as negative plates have protrusions integral with the film 13 at each corner to space adjacent electrodes. The lead fabric 11 of the positive and negative plates may be activated by anodizing prior to electrolytic reduction thereof and initially charging the assembled battery. The discharge characteristics may be improved by adding barium sulphate or lignin to the negative electrode. Thus the negative electrode plate is immersed for 10 hours in a 15% aqueous barium chloride solution, dried at 80‹ C. for 2 hours and anodized in H 2 SO 4  of 1À03-1À05 specific gravity, to which 10-13 g./l. of NaClO 4  has been added, at 30+ 2‹ C. and a current density of 14 mA/cm<SP>2</SP>. for 20 hours. As shewn in Fig. 16, the assembled lead storage battery comprises positive electrodes 21 surrounded by ion-permeating covers 23 and negative electrodes 22 disposed in an electrolyte 31 of H 2 SO 4  of 1À28 specific gravity containing 3-5 g./litre of lignin sulphonate. The battery contains a gas-removing catalyst 32 comprising ethylene tetrafluoride powder press-moulded together with graphite and a metal catalyst such as palladium. A gas exhaust valve 33, Fig. 17 (not shown) is also provided.
Patent GB-1406714-A (GB)
IPC: H03J7/30
Filed: 1972-09-18
Abstract: 1406714 Tuner drive arrangements R SEREGNI and M SEREGNI, [trading as INCIS DEI FRATELLI SEREGNI SNC] 19 Sept 1972 [28 Sept 1971] 43108/72 Heading H3Q A drive mechanism for a tuner unit in a radio receiver incorporating a magnetic tape or wire recorder and/or player including a driving motor 1 has a flywheel 5 rotatable by the motor 1 at a rotational speed lower than that of the motor and means 6, 10-14 for transmitting motion from the flywheel 5 to the tuner unit for adjusting the tuning of the radio receiver. In the car radio provided with a magnetic tape cartridge player shown automatic tuning is started by pressing a knob (not shown) so as to move a shaft 14 in the direction of arrow H and causes simultaneous energization of relays 9 and 20. Relay 9 causes a lever arm 7 to pivot about 8 in the direction of arrow G so as to make a roller 6 engage a belt 4 on the flywheel 5 of the player. Relay 20 starts the player electric motor 1 so as to drive the roller 6 which drives the tuner unit 16 in the direction F via a belt 10, a pulley 11, a worm 12, a gear-wheel 13 and a shaft 14. On reception of a signal the relays 9 and 20 are de-energized and the pulley 6 is caused to disengage from the flywheel 5 due to the elastic belt 10 or by the action of the return spring of the relay 9 and the motor 1 is caused to stop. The gear wheel 13 is mounted on the shaft 14 by way of a friction clutch 15 in order to enable manual tuning. The tuning is indicated on a dial 19 by a pointer 18 associated with levers 17. The insertion of a cartridge 21 cuts out the radio and cuts in the player.
Patent GB-1305625-A (GB)
IPC: H01L21/302
Filed: 1970-09-09
Abstract: 1305625 Etching MOTOROLA Inc 9 Sept 1970 [29 Sept 1969] 43184/70 Heading B6J In a method for non-preferential etching of silicon, e.g. for preparing semi-conductor material, the silicon is contacted by a gaseous mixture containing sulphur hexafluoride having below 1300 p.p.m. by weight of nitrogen impurity, and a gas taken from the group hydrogen, helium or argon, whilst maintaining the temperature of said silicon between 950 and 1250 C. A silicon wafer may be heated on a quartz slab, resting on a graphite susceptor, by radio-frequency induction, the supply of sulphur hexafluoride in the gas mixture being cut off when sufficient etching has taken place. Other etchants such as ClF 3 , HCl, HF and H 2 S may be added to the mixture.
Patent GB-1489751-A (GB)
Title: Throwing game
IPC: A63F9/02
Filed: 1974-10-04
Abstract: 1489751 Throwing game; targets; toy projectiles M BOCK H WEBER and G WEBER 4 Oct 1974 [5 Oct 1973 23 Feb 1974 30 July 1974] 43227/74 Headings A6H and A6S A game comprises a resilient framed injection-moulded target and a body which, when thrown at the target, adheres by a hook-like action. The body may be formed by sticking patches to a table tennis ball, Fig. 3. The target. has a woolly or looped fabric surface, and may have a wave-form as shown in Fig. 6. The target surface may have football targets printed on it.
Patent GB-1063113-A (GB)
Title: Improvements in or relating to the production of negative transparencies
IPC: G03F1/92
Filed: 1964-10-23
Abstract: A transfer coating comprises pine rosin, camphor, ethylcellulose, paraffin wax, rubber and an azo dye, or the rosin may be replaced by gum damar, gum elami, or gum copal.  The dye may be red or a combination of red and brown to form a transfer layer that is transparent to part of the spectrum but opaque to another part, or a pigment, e.g. carbon-black, may be used to form a transfer layer that is opaque to all wavelengths.ALSO:A sheet material for making negative transparencies comprises a transparent carrier foil, an intermediate layer and a transfer layer.  The intermediate layer holds the other layers together, but prevents adhesion when the transfer layer is activated, and may be a continuous layer of frangible solid material.  The transfer layer comprises a solvent-activable adhesion composition that is normally non-tacky and includes colouring material that is at least partly opaque to at least part of the light spectrum. The carrier foil may be of terephthalate polyester, polystyrene, polycarbonate or cellulose ester.  The intermediate layer may be of dextrin, glycerol and sodium lauryl sulphate, or the dextrin may be replaced by gelatin, gum arabic or soap.  The transfer layer may be of pine rosin, camphor, ethylcellulose, paraffin wax, rubber and an azo dye, or the rosin may be replaced by gum damar, gum elami, gum copal, polyvinyl ethers or esters, polyisobutylene or acrylic resins.  The dye may be red or a combination of red and brown to form a transfer layer that is transparent to part of the spectrum but opaque to another part, or a pigment, e.g. carbon-black, may be used to form a transfer layer that is opaque to all wavelengths.  The transparency is made by securing the sheet to a rigid support, with the transfer layer exposed, exposing it to the vapour of a solvent, e.g. toluene, that will activate the adhesive, pressing on to it a type forme, and then lifting the forme off.  The forme carries with it portions of the transfer layer corresponding with the type, and so forms a negative transparency that can be used to prepare a printing plate by a photographic method.
Patent GB-1353506-A (GB)
Title: Copolymers of vinyl ester units
IPC: G03F7/038
Filed: 1971-09-16
Abstract: 1353506 Copolymers of vinyl ester units POWERS CHEMCO Inc 16 Sept 1971 [7 Jan 1971] 43291/71 Heading C3P [Also in Division G2] A copolymer of molecular weight from 14,000 to 115,000 has vinyl benzoate or vinyl cinnamate units of the formula and vinyl furoate or vinyl furan acrylate units of the formula in which R and R<SP>1</SP> are hydrogen, halogen, cyano, hydroxy, amino or certain organic radicals, and m and n are 0 or 1, and optionally vinyl alcohol units. It may be obtained by sequential esterification of polyvinyl alcohol with the corresponding acid chlorides or by transesterification of vinyl acetate monomer and subsequent copolymerization. In typical examples benzoyl chloride, cinnamoyl chloride, and p - trifluoromethoxycinnamoyl chlorides and 2-furoyl chloride, 5-dodecenyl furyl chloride or the corresponding furan acryloyl chlorides are reacted with the polyvinyl alcohols. Vinyl furoate and vinyl cinnamate are also freeradical copolymerized. The polymers are lightsensitive and may be used in preparing photoresists and printing plates, particularly in combination with a cyclic oxo compound as sensitizer.
Patent GB-1279150-A (GB)
Title: Arrangements for and a method of joining a sleeve to a tube
IPC: F16L13/14
Filed: 1969-09-02
Abstract: 1279150 Pipe &c joints AGA-PLATFORADLINGAB 2 Sept 1969 [19 Sept 1968] 43303/69 Heading F2G A pipe or tube 2 is secured to a sleeve 1 by compressing the latter on to the pipe with at least one coupling ring 4 and a sealing ring 5 between them so that the coupling ring bites into the pipe. As shown, two coupling rings 4, 6 are provided and the sleeve 1 connects two pipes 2 with a stop ring 3 interposed between their ends. The rings 3 ... 6 are inserted into the sleeve 1 in sequence by mandrels and a tube 2 is pushed into the sleeve, the depth of insertion being determined by the stop ring 3. Additional coupling rings 4 and sealing rings 5 may be employed. The outer rims (la), Fig. 7 (not shown), of the sleeve may be peened inwardly to support the pipes 2. Instead of using the separate stop ring 3, the centre section of the sleeve may be of radially smaller size to provide a stop, Figs. 8, 9 (not shown). The inside of the sleeve may have annular grooves (10), Figs. 7, 8 (not shown), for the coupling rings 4. The coupling rings 4 may be smooth, as shown, or of undulating form, or provided with projections along their surfaces, Fig. 11 (not shown), to improve their engagement with the sleeve and pipe. In another form, a helically-wound coupling ring (6), Fig. 10 (not shown), is used, with sealing material between the coils.
Patent GB-1066207-A (GB)
Title: Improvement relating to compositions for the treatment of dandruff
IPC: A61K8/49
Filed: 1965-10-13
Abstract: Hairdressing compositions suitable for the treatment of dandruff comprise 0.1 to 1% by weight of said composition of a water-insoluble salt of 1-hydroxy-2-pyridinethione dispersed in an opaque, oil-in-water emulsion having a yield value of 150-300 dynes/sq. cm., and both hydrophilic and hydrophobic character and comprising a stabilizer consisting of a salt of a carboxy vinyl copolymer. Examples of water-insoluble 1-hydroxy-2-pyridinethione salts are Zn, Fe, Cu, Co and Mn; Zn being particularly preferable. The oil-in-water emulsion may comprise (1) an oil phase comprising 20 to 50% of hydrophobic fatty acid and oily hairdressing agents e.g. natural or synthetic animal, vegetable or mineral fats and oils, petrolatum, mineral oil, paraffin wax, microcrystalline wax, castor oil, lanolin wax and alkylene glycol fatty acid esters such as propylene or ethylene glycol monolaurate, (2) from 60-75% of an aqueous phase including 10 to 25% of water-soluble hairdressing agents e.g. glycerin or propylene glycol (binding agents and humectants) and polyalkylene glycol ethers such as polyethylene glycol-polypropylene glycol ethers, and (3) 2 to 7% of an emulsifying component e.g. potassium soaps of candellila wax and beeswax, polyoxy alkylene glycol esters such as polyoxy ethylene-poly oxypropylene stearate; all percentages being by weight of the composition.  Perfumes and preservatives may optionally be added to the composition.
Patent GB-1437194-A (GB)
Title: Track circuits
IPC: B61L1/18
Filed: 1973-09-18
Abstract: 1437194 Continuous rail track circuit WESTINGHOUSE AIR BRAKE CO 18 Sept 1973 [18 Sept 1972] 43625/73 Heading B7H In a continuous rail track circuit system, each junction between circuits, e.g. LT, RT includes a cross bond 3, a transmitter coil 4 coupled to the hand for supplying to the track a signal from a local source at mains frequency, or twice that frequency, via a contact a of a code repeater relay CTP, the signal being of the same frequency but different in phase to that supplied at adjacent junctions, a pair of receive loops LL, RL, one on each side of the junction, each connected to a phase sensitive unit P.S.U. which is also supplied from the local source with a signal in anti-phase to that supplied to the track so as to respond only to signals received via the track from the adjacent junctions, a code follower track relay LTR or RTR associated with each unit PSU and a timing logic arrangement 6 which controls sequential switching of the apparatus between transmit and receive modes. Unit 5 decodes the operation of the track relays to provide track occupancy information and determines the code rate for the code repeater relay CTP.
Patent GB-926684-A (GB)
Title: Improvements relating to telephone systems
Inventor: DRAKE BERNARD
IPC: H04M7/10
Filed: 1960-12-20
Abstract: 926,684. Automatic exchange systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 10, 1961 [Dec. 20, 1960], No. 43772/60. Class 40 (4). In a system providing four-wire switching and phantom circuit direct current signalling over the go and return transmission paths, a selector circuit for setting up a through connection between two outgoing junctions or trunks (e.g. by an operator in response to a booked call) includes isolating transformers T1 and T2 connected respectively in the go and return paths and effective for splitting each of these paths into two longitudinal sections as regards the flow of direct current therein, each of the windings of the isolating transformers having a centre-tapping to which is applied a potential different from a potential applied to a centretapping C or D of a hybrid or other transformer winding terminating the corresponding section of the transmission path so that direct current can flow through each of the legs of the transmission paths of the connection. The object of this arrangement is to maintain the flow of contact-wetting direct current and the correct operation of pad-switching relays despite the reversal of go and return paths involved/in a connection of this type.
Patent GB-903106-A (GB)
Title: Hank dyeing methods and machines
Inventor: HELLIWELL GUY STORR
IPC: D06B5/20
Filed: 1959-12-28
Abstract: In a method of dyeing at least one hank of yarn, the hank is mounted on a stationary horizontal support and fully submerged in a bath of dyeing liquor, being maintained in a substantially floating condition in this bath by the controlled application of dyeing liquor upwards from the support against the underside of the part or parts of the hank normally resting on the support.  A plurality of hanks in side-by-side arrangement may be dyed, and the dyeing liquor may be continuously drawn off and recirculated. Apparatus suitable for carrying out the method of the invention is described and illustrated, and may comprise a hank supporting structure having a plurality of hollow arms and means to effect the forced flow of the dyeing liquor through said arms and out through perforations in the upper surfaces thereof.  The hank supporting structure is preferably provided with registering pairs of arms the lower of which serve to prevent excessive upward movement of the hanks during dyeing.  The arms may comprise a perforated inner tube surrounded, with a clearance, by an outer sleeve having an upwardly directed aperture or apertures, preferably in the form of a slit or slits.  The perforations in the inner tube may be angularly offset from the slits to militate against the production of turbulent flow from the arms, and to achieve uniform outflow the perforations, if of equal size, may be arranged at graduated distances from the feed inlet of liquor into the tube.
Patent GB-1042658-A (GB)
Title: Improvements in or relating to elevator control systems
IPC: B66B1/22
Filed: 1964-10-29
Abstract: 1,042,658. Lift control systems. K. M. WHITE CO. Inc. Oct. 29, 1964 [Feb. 12, 1964]. No. 44136/64. Heading B8L. In a control system for a plurality of cars, the presence of preferred service calls is detected by one or more cars while they are travelling upwardly. Where a preferred service call is detected by the first car travelling upwardly, this car will no longer respond to " up " hall calls but will stop at the next " down " hall call, automatically reverse its signal direction to " down " and travel downward, by-passing normal " down " hall calls and stopping only in response to " down " preferred service calls. After the lowest preferred service call has been responded to, the car will return to normal service. An interlock may be provided to prevent any following car from being arranged for immediate preferred service operation after the first car has been so conditioned. The car or cars following the first up-travelling car can also detect the presence of a preferred service call, these cars responding to " up " hall calls until the highest call is detected, whereupon they reverse and start in the downward direction. These cars will then stop only in response to " down " preferred service calls until the lowest call has been responded to. The registration of each " down " hall call actuates a timer for the respective floor so that a preferred service relay is actuated after a predetermined period. This reduces the effective voltage on the other timers to increase the timing interval for the next preferred service call. When the second preferred service relay is actuated, the timing interval for the following preferred service call is furthe increased. The highest up-travelling car may be reversed automatically at the mid-point of its journey when a preferred service relay is actuated, so affording quick response when the highest car is above the preferred service floor when the relay is actuated. The system may also comprise circuits for selecting the lowest downward travelling car and cause it to by-pass normal " down " calls in response to an " up " preferred service call from the first floor.
Patent GB-1160937-A (GB)
Title: Improvements in or relating to Gramophone Record Players
Inventor: BELLINI DARIO
IPC: G11B3/085
Filed: 1967-09-28
Abstract: 1,160,937. Gramophones. D. BELLINI and M. BELLINI. 28 Sept., 1967 [29 Sept., 1966], No. 44192/67. Heading G5R. A record 5 inserted (Fig. 1) through a slot 50 on to a turntable 4 tilts a control member 25 to close the motor switch 44 and cause a pin 23 carried by a multi-armed lever 12 to ride along one branch 24a of a bi-arcuate slot 24 to a position, Fig. 3, from which a toggle spring 31 urges it along the second branch 24b, further rotating lever 12 (Figs. 4 and 5) so that arm 35 lowers the pick-up 36 on to the record 5 and arm 14 inserts a rotatable conical centring plug 16 into the central hole in the record, teeth 17 on the plug 16 then meshing with lobes 19 of a cam 18 at the centre of the turntable 4. At the end of playback, a tooth 42 on pick-up arm 35 engages a projection 21 on plug 16, which is thereby prevented from rotating and rides up on cam 18 to the position shown in Fig. 3, fron which the toggle spring 31 completes the restora tion to the initial position and the ejection o the record 5. A spring 38 returns the pick-up 36 to its rest position. In a modified construction (Figs. 6 to 12), the tooth (170) which stops the rotation of the plug (116) is connected to the pick-up arm (135) through a linkage including a friction clutch, and its engagement with the projection (121) on the plug depends upon the increased radial speed of the pick-up when i enters the run-out groove. In this construction the pick-up is returned to its rest position by the action of an arm (173) forming part of the control member (125), and the multi-armed lever (112) has an extension (122a) providing fo manual interruption of playback. The pick-up is counter-balanced and spring-urged towards the record so that playback may be effected in any orientation of the apparatus.
Patent GB-1530624-A (GB)
Title: Articulated endoprostheses
IPC: A61F2/30
Filed: 1975-10-29
Abstract: 1530624 Prosthetic implant FELDMUHLE AG 29 Oct 1975 [29 Oct 1974] 44743/75 Heading A5R The ball part of a hip joint endoprosthesis comprises a ceramic ball 2 with a tapering bore 3 which receives a tapering peg 5 on a metal shank 1, a space 6 being left between the base of bore 3 and the tip of peg 5, the ball being of a sintered oxide ceramic having an aluminium oxide content of at least 99.7%, a specific gravity of at least 3.9 and a particle size of at most 10Ám, the tapering cones both having a taper ratio of 1:10 to 1:20, and the surface of the peg 5 which engages the bore 3 being deformable by pressure and/or heat and/or the surface of the bore 3 which engages the peg 5 having a deforming effect on the surface of the peg 5. Shank 1, including peg 5, is of a malleable alloy and is hollow the outer wall of the cone being 2-7mm thick and thus deformable by pressure during thermal sterilisation or by mechanical forces. The surface of peg 5 has shallow depressions (11) forming a lattice, Fig. 2 (not shown) or has grooves (10), Fig. 3, (not shown). The surface of bore 3 may be ground with undulations (12), Fig. 4 (not shown) which cause surface deformation of the peg 5 and permit thermal sterilisation of the assembled prosthesis. The surface of bore 3 may be made deformable by metallizing by one or more medically acceptable metals.
Patent GB-1198407-A (GB)
Title: Improved method for the preparation of a Cellular Article and product obtained thereby
Inventor: SIMPSON DONALD WALTER
IPC: C08J9/14
Filed: 1968-09-20
Abstract: 1,198,407. Cellular articles of monovinyl aromatic polymers. DOW CHEMICAL CO. 20 Sept., 1968 [21 Sept., 1967], No. 44853/68. Headings C3C and C3P. A cellular article, e.g. sheet or tube, is made by heating a mixture of a thermoplastic resinous polymer of a monovinyl aromatic compound, a nucleating agent and a foaming agent consisting of 75-97À5 wt. per cent dichlorodifluoromethane and 25-2À5% of n- and/or iso-pentane. In the examples a mixture of polystyrene and a styrene/maleic anhydride copolymer as nucleating agent is fed to a screw extruder, the foaming agent is fed into the heat plastified gel in the extruder barrel and a tube is extruded through an annular die and is stretched over a mandrel using air lubrication; a minor proportion of the extrudate is ground and recycled.