baber/WOPTO huggingface dataset:
Patent GB-1416859-A (GB)
Title: Reciprocatable devices
IPC: E02F9/22
Filed: 1972-08-04
Abstract: 1416859 Hydraulic pumps or motors D FIRTH K FOSTER and C J HOOKE 9 Nov 1972 [19 Oct 1971 4 Aug 1972] 48604/71 and 36447/72 Headings F1A and F1P A reciprocatable device comprises an outer member 112, an inner member 114 reciprocable relative to the outer member 112, a resilient member 116 connecting the members 112, 114 together, the resilient member having an average thickness in a direction normal to the axial direction not greater than the average length of the resilient member in the axial direction, and a piston 120 slidable in the end 122 of the outer member and defining therewith a chamber 126 for fluid, especially liquid. In operation the inner member 114 is either reciprocated by the piston 120 due to the application of a pulsating pressure to the chamber 126 or is reciprocated to change the pressure in the chamber 126 for use in pumping. For other instructional details of the device and also details of two systems, Figs. 3 and 4 (not shown) for producing pulsating pressure in the chamber 126 -See Specification 1416860.
Patent GB-1389023-A (GB)
Title: Acoustic wave coupler devices
IPC: H03H9/05
Filed: 1971-08-05
Abstract: 1389023 Surface wave devices STANDARD TELEPHONES & CABLES Ltd 3 Aug 1972 [5 Aug 1971] 36792/71 Heading H3U Acoustic surface, or interface, wave couplers comprise a pair of groups of transverse conductors 1 on a substrate which is piezoelectric, a piezo-layer on a non-piezo substrate, or has piezo-layers adjacent the couplers, and transducer 3, Fig. 10. The proportion of wave energy coupled from path A to adjacent path 13 increases with the coupler length. The cells of Fig. 1, may be longitudinally joined, and the whole construction longitudinally duplicated, Fig. 5 (not shown). The constructions of Figs. 2a, 2b may be modified to have triplets of interconnected conductors, Figs. 3a, 3b (not shown), or all the triplets connected together on one side and the whole construction duplicated longiudinally, Fig. 4 (not shown). To avoid unwanted reflections the conductor spacings in Figs. 2a, 2b may be increased progressively, Figs. 9a, 9b (not shown), or each group may have larger conductor spacing than the previous one Figs. 8a, 8b (not shown). Inductors 2, Fig. 6a, may be interposed in the interconnections across the paths, either a pair in series, Fig. 6b, or only one, Fig. 6a (not shown), to compensate interfinger capacitance, which may alternatively be compensated by a meander line (1A), Fig. 7 (not shown). Unidirectional transducer, Fig. 10.-The two parts of any of the above forms of coupler are folded back with respect to each other to form the array 6A, 6B, encompassing transducer 3, one eighth of an acoustic wavelength nearer part 6A than 6B, resulting in propagation unidirectionally along path A. Exemplary dimensions for 100 MHz are given.
Patent GB-881402-A (GB)
Title: Electric accumulator battery
IPC: H01M2/12
Filed: 1957-11-27
Abstract: 881,402. Batteries. MOLL, P. J. Nov. 27, 1957 [Nov. 27, 1956], No. 36947/57. Class 53. A storage battery is provided with separate covers 2 for each cell, and each cover is provided with a filling opening in which is a screwthreaded gas vent, Fig. 11. The vent is formed with a collar 5 which is surmounted by a pushon cap 6, Fig. 1, having a side opening and a tube 8 connecting all the caps together and which conducts gas to a point outside the battery. The tube 8 is made in sections so that its length can be adjusted. Instead of the vent being provided with the collar 5, the cover 2 may be formed with an upstanding tubular wall in or over which the cap 6 is fitted. The tube 8 may be of round or rectangular section, and the covers 2 may be recessed so that the caps 6 lie flush with the tops of the covers. Specification 881,403 is referred to.
Patent GB-1388750-A (GB)
Title: Crystal growth and anneal of lead tin telluride by re crystallization from a heterogeneous system
IPC: C30B9/06
Filed: 1972-08-08
Abstract: 1388750 Lead tin telluride HUGHES AIRCRAFT CO 8 Aug 1972 [30 Aug 1971] 36948/72 Heading C1A [Also in Division C7] A single crystal of lead tin telluride is prepared by reacting a source of lead tin telluride to form a composition thereof and equilibrating the composition in an evacuated environment at an isothermal temperature closer to the salidus than the liquidus phase to form a lead tin telluride single crystal which is cooled. The source material may comprise elemental zinc, tin and tellurium in stoichiometric or metal rich quantities and may additionally comprise a small quantity of metal impurity for doping, e.g. Bi, Sb or As and may be produced by reacting at 950‹ C. for 4 hours at 10<SP>-6</SP> Torr and may be held at 850‹ C. for 5-14 days at 10<SP>-6</SP> Torr to form single crystals of composition Pb 0À76-0À82, Sn 0À24-0À18 Te. The conductivity of the single crystal or wafers thereof may be adjusted by annealing at a temperature corresponding to the mole fraction of tin telluride in the single crystal, e.g. 200- 650‹ C. in an atmosphere of lead and tin vapours e.g. by heating in an atmosphere of inert gas at <SP>1</SP>/ 3  atmosphere pressure in the presence of metal rich powder of composition where x is the atom fraction of Sn approximately equalling the mole fraction of Sn telluride in the single crystal and Y is the atom fraction of Te approximately equal to the atom fraction of Te in the single crystal and quenching to ambient temperature. The single crystal wafers may then be etched in a solution of bromine in hydrogen bromide and further annealed at 200‹ to 600‹ C. to impart N-type conductivity to the material.
Patent GB-952520-A (GB)
Title: Means for inverting barrels, casks or like cylindrical containers
Inventor: HARGREAVES GEORGE
IPC: B65G65/23
Filed: 1961-10-16
Abstract: 952,520. Tipping casks &c. WRIGHT HARGREAVES ENGINEERING CO. Ltd. Oct. 4, 1962 [Oct. 16, 1961], No. 36969/61. Heading B8E. Apparatus for inverting casks 20 or other substantially cylindrical containers while halted on a conveyer 12 of a washing machine comprise swivel devices which engage the cask below its centre of gravity so that when lifted the cask is free to rotate to an inverted position. Arms 14 have bearings 21 mounting swivel members 22 and are mounted for vertical and horizontal pivotal movements about pivots 23, 15 of a carriage 10 running on rails 11. The arrangement is such that when a cask 20 halts on the conveyer 12 hydraulic rams 13, 19, 24 operate to advance the carriage towards the cask, the arms to grip it below the centre of gravity and then to raise the arms so that the cask tips to invert. A plate 25 engages a stop of an arm 14 to restrict the swing to about 180 degrees while a trip arm 29 prevents rebound. Alternatively the arms may be mounted on vertical guides above the conveyer.
Patent GB-1025731-A (GB)
Title: Improvements in composite electrical circuit units
IPC: C04B35/468
Filed: 1962-10-01
Abstract: 1,025,731. Capacitors; circuit assemblies. GLOBE-UNION Inc. Oct. 1, 1962 [Oct. 5, 1961; July 26, 1962], No. 37034/62. Headings H1M and H1R. An electrical circuit element comprises a ceramic body including a section having semiconductor properties with a pair of electrodes attached thereto; a non-ohmic barrier layer being formed beneath each of the electrodes so that the assembly constitutes a capacitor and a portion of each barrier layer underlying the electrodes is treated to effectively shunt out a portion thereof and thus to form a finite resistance between the electrodes, in parallel with the capacitor. A composite substratum 10 (Fig. 2) comprises end and middle portions 12, 14, 16 of high dielectric constant reduced titanate semiconductor ceramic material and intervening coplanar portions 18, 20 of compatible low dielectric constant ceramic material; having non-ohmic properties; the whole being an integral unit. The ceramic materials contain specific proportions of barium tianate, to which calcium titanate, strontium titanate, magnesium zirconate, barium zirconate, calcium zirconate may be added as required; and rare earth oxides and lead titanate may be added to the high dielectric constant material. The composite substratum is fired to maturity at a high temperature and then refÝred in a hydrogen or carbon monoxide reducing atmosphere to reduce 12, 14, 16 to show semi-conductive characteristics. After firing, the front face of the substratum is provided with silver paint electrodes, 22, 24, 26 applied to the reduced titanate portions 12, 14, 16 which are interconnected by conductors 28, 30 on the portions 18, 20, while coplanar electrodes 32, 34, 36 applied to portions 12, 14, 16 with connected terminal pads 38, 40, 42 on portions 18, 20 form capacitances C1, C2, C3 (Fig. 5) in conjunction with the semi-conductor barrier. A further terminal pad 44 is applied to portion 20 and a strip of carbonaceous resistance paint is screened on to connect with conductor 30 to constitute resistance R 2 . A resistance R 1  is introduced between electrodes 26, 36 by abrading, spot soldering, or tinning adjacent portions thereof at 46, 48, effectively to shunt out part of the non-ohmic barrier layer subjacent the electrode portions. Lead wires 1, 2, 3, 4, 5 are applied to 38, 28, 42, 44, 40 as shown by dip bath soldering, and the barrier layers are protected by coating the overlying electrodes with an inert paint to which solder is non-adherent. The shunt resistance value is adjustable according to a given formula by controlling the area of electrode to be abraded or soldered, and the unit may be encapsulated by an insulating coating. Formulµ for the ceramic materials are given.
Patent GB-619708-A (GB)
Title: Improvements in or relating to a display device
IPC: G09F19/00
Filed: 1946-12-17
Abstract: 619,708. Changing signs. SHIPMAN, F. Dec. 17, 1946, No. 37100. Convention date, June 25, 1945. [Class 3(i)] [Also in Group XV] A display stage for advertising or theatrical purposes comprises a pair of sheets 1, 2, Fig. 1, arranged in V formation and having the inner sides reflective, parts of the sheets 7, 8, 9, being movable. The sheets 1, 2 have a backing of wood or other suitable material with mirrors or other reflectors 3 on the inside. Intermediate the ends; a part of each sheet is mounted on turntables 5, 6, the sheets at these points comprising two mirrors 7, 8 back-to-back. The mirrors 7, 8 are held together at the top by clamps 15, Fig. 2, and are pivoted at 16 in a ceiling. The turntables 5 are sunk into a floor so that the tops are flush with the floor and have wheels 14 running on tracks 17. The apex 9 is a separate part movable on rails 10 by wheels 11 and a plurality of apices may be arranged side by side so that any desired one may be moved into position. The ends of the sheets 1, 2 are concealed by masking sheets 12, 13 each arranged to leave a gap to provide an entry into the display area. The turntables and apices may be moved mechanically or manually.
Patent GB-326550-A (GB)
Title: Improvements in or relating to advertising or like signs, or devices
IPC: G09F13/14
Filed: 1928-12-17
Abstract: 326,550. Frenkel, G. Dec. 17, 1928. Signs. - Stencils S<1>, S<2>, with reflecting backs, and mirrors R are placed as shown with their long edges vertical. Diffused light enters at the gaps W and is reflected through the stencils. Instead of mirrors additional stencils, Fig. 6, may be used at an adjustable distance. The stencils are supported by rods embedded in weighted bases 10, 11. A curved mirror may be used instead of the two plane mirrors shown in Fig. 2. The angle between the mirrors and stencils may be adjusted in the vertical plane by means of universal joints.
Patent GB-1440368-A (GB)
Title: Converter control system
IPC: H02M7/00
Filed: 1973-08-07
Abstract: 1440368 Automatic voltage control HITACHI Ltd 7 Aug 1973 [12 Aug 1972] 37423/73 Heading G3R [Also in Division H2] In an HVDC power transmission system (see Division H2) an inverter transfers power from a D.C. line to the secondary of a 3-phase tapped transformer, the primary of which is connected to an A.C. network. The no-load secondary voltage is maintained constant by the arrangement shown, which operates by monitoring the primary voltage Ea and by rectifying at RD and smoothing at Ra, Ca. The monitored voltage is compared with a reference voltage - Vcc adjusted by switches S1 .... Sn and resistors Ro ... Rn 1 so as to provide an indication of which tap of the transformer is in use. An error signal is produced by amplifier A11 and feeds a controller LD arranged to alter the tap on the transformer in such a way as to maintain constant the no-load secondary voltage. The change of tap ceases when the reference voltage - Vcc has been changed sufficiently by switches S1 ... Sn to equalize the new value of primary voltage. This arrangement eliminates the effect of periodic short circuiting of the secondary of the transformer during commutation of the inverter.
Patent GB-1146983-A (GB)
Title: Improvements relating to electrical control and/or signalling apparatus and electrical switches therefor
Inventor: WHEATLEY WILLIAM
IPC: H01H36/00
Filed: 1965-09-02
Abstract: 1,146,983. Magnetic switches. AVON ELECTRICAL (HEANOR) Ltd. 2 Sept., 1966 [2 Sept., 1965], No. 37450/65. Addition to 1,098,461. Heading H1N. Push-button operated switches as described in the parent Specification have the connections 60 between reed contacts or other embedded components and wires 62 sealed in epoxy resin in pockets formed between component mounting block 46 and an insulating container 47. Connections to an indicating lamp 64 are also sealed in resin. The block 46 is mounted between push-button assemblies 27, 30 each of which has a magnetic shield 71, 72 movable between a permanent magnet 81 and magnetic reed contact units in the block 46. The push-button of assembly 30 may be turned and locked in the operated position. The cables 81, 82 containing the wires 62 are taken to sealed plug and socket connectors 90 which receive cables 115. The internal connections are taken to a plug block 83 which can be removed from inside the assembly so that block 46 with its wiring and the two blocks 83 can be removed and replaced by a similar assembly.
Patent GB-892808-A (GB)
Title: A cylindrical cooling bed for rod shaped material
IPC: B21B43/08
Filed: 1960-11-01
Abstract: 892,808. Cooling beds for rolling mills. ZAVODY V.I. LENINA PLZEN, NARODNI PODNIK. Nov. 1, 1960 [Nov. 30, 1959], No. 37477/60. Class 83 (4). A cooling bed for rod-shaped material comprises a plurality of spaced discs 4, Fig. 1, mounted on a rotatable shaft 8 and having peripheral recesses 5, Fig. 3, adapted to carry the rod material 13 from feeding dogs 3 to collecting dogs 6 arranged between the discs 4. The rod material 13 is fed along a conveyer 1 and collected by a conveyer 7. Bearing discs 9 for the shaft 8 are preferably supported on rollers 10 to reduce friction.
Patent GB-302690-A (GB)
IPC: C01B33/46
Filed: 1928-12-19
Abstract: 302,690. Rosenheim, A. Dec. 20, 1927, [Convention date]. Purifying liquids.-Base-exchanging silicates such as glauconite or artificial alkali aluminium silicates are stabilized and have their baseexchanging capacity increased by treatment at ordinary or elevated temperature and at normal or reduced pressure first with acid-reacting aqueous solutions of salts of metals which are at least divalent, and then with aqueous solutions of neutral alkali metal salts, particularly sodium chloride. Salts of iron, manganese, aluminium, chromium, nickel, copper, zirconium, zinc, tin and titanium, and particularly ferric, aluminium, or chromic salts may be used for the first treatment, and a treatment with aqueous solutions of alkaline-reacting alkali metal salts such as sodium silicate, may be interposed between the first and final treatments. Washing may be effected between the various treatments, which may be repeated in succession until hard water passed through the treated material no longer becomes turbid. Examples refer to the use, as acid-reacting salts, of ferric chloride or sulphate, zirconium nitrate, chromium chloride, titanium-potassium sulphate or fluoride, aluminium chloride, sulphate or acetate, manganese chloride, or mixtures of copper and nickel salts, iron and aluminium salts, or chromium and titanium salts. Glauconite may be subjected to preliminary treatment such as elutriation and sieving, or heating to 100-500‹ C., before being treated as above described. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following subject-matter :-the treatment of glauconite with chromium chloride followed by caustic soda. This subject-matter does not appear in the Specification as accepted.
Patent GB-523167-A (GB)
Title: Improvements in switch-frogs for the overhead conductors of electric traction systems
IPC: B60M1/14
Filed: 1938-12-24
Abstract: 523,167. Overhead conductors for electric traction. BRITISH INSULATED CABLES, Ltd., LONDON PASSENGER TRANSPORT BOARD, BROOM, T. C., and POWELL, H. J. Dec. 24, 1938, No. 37558. [Class 104(iii)] A switch 4 pivoted at 5 on a frog between the parts 2 of a primary conductor and the parts 3 of a secondary conductor is moved from the primary position shown to the secondary position by a collector 31 on line 3 engaging a wheel 11 on a bell-crank 8, 9 connected by a pivotal rod 13 to an arm 16 rigid with 4. This moves pivot 14 between 9 and 13 out of dead centre position, and turns 16 anticlockwise so that 4 aligns with the conductor 3. The movement of 13 acting through arms 18, 19 and spring 17 pulls rod 28 and crank 24 into dead centre position, so that any lateral thrust of the collector on 4 cannot move the latter. As the wheel 31 leaves the frog it engages a wheel 33 and, through bell-crank 25, 24 and rod 28, returns 4 to normal position in line 2 and the parts 13, 9 to dead centre position. Stops in the path of wheels 11, 33 make 3 a one-way line.
Patent GB-948164-A (GB)
Title: Method of producing rolled metal articles
IPC: B22D18/04
Filed: 1960-11-01
Abstract: 948,164. Casting machines; making billets. GRIFFIN WHEEL CO. Nov. 1, 1960 [March 21, 1960], No. 37583/60. Headings B3A and B3F. Rolled billets, blooms and slabs are made by upwardly pressure-casting metal into a chill mould with an air-tight connection between the mould and the molten metal container, the ingots being then closed by a chill member, and the other end of the mould having a riser and then after solidification cutting-off a portion of the casting at the riser end to obtain an end free from shrinkage cavities, re-heating the casting if necessary to above the weld temperature of the metal, and then rolling to eliminate all internal shrinkage cavities by internal welding. The mould assembly 2, Fig. 1, comprising a graphite mould 4 is clamped to a plate 40 having wheels 8, and in the casting position stands on rail sections 10 which are vertically movable so that the mould may be lowered until the ingate cut-off member 12 seats on the metal feed pipe 58 mounted in the container 81. The cut-off member 12 is clamped by wedges 48 to the underside of the plate 40 and includes an apertured slide member 22 which is actuated to open or close the ingate by a cylinder 84. In a modification, Figs. 19, 20, 23, the elongated graphite mould comprises cope and drag members 124, 142 and an ingate 155 with a cut-off member as previously described. The other end of the mould comprises a split graphite, or other chill material, block 148 with a riser 152 and is supported on a pivot 154 so that the ingate may be raised and lowered into engagement with the feed pipe 58. Specification 718,744 is referred to.
Patent GB-896177-A (GB)
Title: Chemical metal plating on glass
Inventor: MOCHEL JOHN MCKINNEY
IPC: C23C18/18
Filed: 1960-11-02
Abstract: In a process for chemically depositing nickel or cobalt on the surface of a silicate glass the glass surface is chemically etched, a sub-microporous siliceous film is formed on the etched surface by leaching it in the presence of fluoride ions to extract non-siliceous constituents therefrom, the surface is activated by alternately immersing it in an aqueous solution of a salt of a catalytic metal selected from nickel, cobalt and palladium and then in a solution of a reducing agent, and a coating of nickel or cobalt is then deposited from a solution containing a nickel or cobalt salt, hypophosphite ions and a carboxylic acid salt.  As described, etching is effected in hydrofluoric acid; leaching is performed either by exposing the warm glass to hydrofluoric acid vapour or by exposing the glass to an aqueous solution of e.g., fluoboric acid or fluosilicic acid; the reducing agent is an alkali metal borohydride; and suitable coating solutions contain nickel or cobalt chloride, sodium hypophosphite, and sodium hydroxyacetate or sodium citrate.  Specification 100,738, and U.S.A. Specifications 2,532,283, 2,532,284, 2,690,401 and 2,690,402 are referred to.
Patent GB-1173303-A (GB)
Title: Coated Optical Glass
Inventor: NEGISHI HIROKAZU
IPC: G02B1/11
Filed: 1968-08-20
Abstract: 1,173,303. Coating compositions for optical glass. CANON CAMERA CO. Ltd. 20 Aug., 1968, No. 37765/66. Heading C4A. [Also in Divisions C3 and G2] Compositions for coating optical glass comprise a light-absorbent material of maximum particle size 0À16 Á, and a carrier therefor. Examples 2 and 3 contain carbon black, rosin, methyl ethyl ketone, and oil black (Example 2) or Sudan black (Example 3). Example 4 consists of oil black, Metalac M black and Metalac M black thinner. Example 5 contains black, yellow and scarlet oil-soluble dyes, carbon black, pitch, epoxy resin and toluol. Example 7 contains black and brown watersoluble dyes, gum arabic and water.
Patent GB-1513347-A (GB)
Title: Thiolcarbonyl derivatives of n-phosphonomethylglycine
IPC: A01N57/10
Filed: 1976-09-13
Abstract: 1513347 Thiolcarbonyl derivatives of N-phosphomethyl glycine MONSANTO CO 13 Sept 1976 [29 Dec 1975] 37789/76 Heading C2P Novel phosphorous compounds having the formula (where each M is H, alkali metal, ammonium or lower alkyl ammonium; R is lower alkyl, or phenyl or benzyl which may be substituted by Cl, CH 3 , OCH 3 , CF 3  or NO 2 ) are prepared by reacting a dibasic salt of N-phosphonomethylglycine with a compound of Formula ClCOSR in an alkaline medium followed by acidification if desired to form a monobasic salt or the free acid. The compounds have herbicidal properties.
Patent GB-364802-A (GB)
Title: Improvements in or relating to electrical protective devices
IPC: H02H7/16
Filed: 1930-12-15
Abstract: 364,802. Protective arrangements. GRAMOPHONE CO., Ltd., Hayes, Middlesex, and CLARKE, H., Northbrook, Syke Ings, Iver, Buckinghamshire. Dec. 15, 1930, No. 37820. [Class 38 (iv).] Charging and discharging condensers.-To prevent potential of wrong polarity being applied to an electrolytic condenser 6 which is connected in parallel with a D.C. load circuit for smoothing purposes, an automatic cut-out is provided having an operating coil 5 connected in the load circuit and a polarized armature 9 which closes contacts 7, 8 when the current flows in the right direction in the load circuit and opens them when the current is reversed. A small lamp 10 connected in parallel with the condenser indicates when it is in circuit.
Patent GB-1046328-A (GB)
Title: High frequency welding of plastics
IPC: B29C65/00
Filed: 1964-09-17
Abstract: 1,046,328. Laminates. J. STOCKHAUSEN. Sept. 17, 1964 [Sept. 18, 1963], No. 38027/64. Heading B5N. A process for welding a synthetic resin foam to a material of a different type comprises applying to the synthetic resin foam or to the other material a pulverulent thermoplastic synthetic resin, gelling the resin by heating and welding the resin and other material together by high-frequency welding. Specified materials are textiles, paper, leather, cardboard, and synthetic resin foils. Polyurethane is the specified synthetic resin foam. Specified welding agents are polyvinyl acetate, polyvinyl chloride, polyvinyl propionate and a copolymer of vinyl chloride and vinyl ether; they may be applied over the whole surface or over discrete areas thereof by use of a shaking screen or an electromagnetic spray channel. Synthetic resin foils e.g. polyvinyl chloride may be applied to the untreated side of the foam or other material.