baber/WOPTO huggingface dataset:
Patent GB-1350479-A (GB)
Title: Method and apparatus for electrochemically producing an electric current
IPC: H01M12/06
Filed: 1971-05-18
Abstract: 1350479 Cell having anode comprising zinc powder suspended in electrolyte AUTOMOBILES CITROEN SA 18 May 1971 [9 June 1970] 15648/71 Heading H1B In a cell, particularly one having an air cathode but which, alternatively, may have a metal oxide cathode, the anode active material comprises zinc particles in suspension in a liquid alkaline electrolyte, this suspension being circulated by pumping means over the anode current collector. The zinc particles undergo oxidation upon contact with the collector, which condition, if allowed to remain, would severely restrict the cell output. This difficulty is overcome by continuously cycling the suspension during the cell discharge in a circuit including the cell and pumping means, the suspension remaining in that part of the circuit between the outlet and inlet of the cell for a length of time sufficient to achieve dissolution and precipitation in the electrolyte, of the products of oxidation. Thus, non-oxidized zinc particles enter the cell inlet. As shown in the drawing a cell container 1 has an inlet 5 and outlet 5<SP>1</SP> for air and an inlet pipe 14 and outlet pipe 12 for circulating, by a pump 13, a suspension of zinc particles 8 in a KOH or NaOH electrolyte. The cathode 4 may be a sintered nickel body covered with a layer of catalytic material of active carbon and silver, and the air side of the cathode is provided with a porous hydrophobic layer of P.T.F.E. The anode current collector 7 may be of nickel gauge or perforated nickel foil and the separator 6 may be of nylon fibres forming a felt sheet. A zig-zag folded strip 15 serves to increase agitation of the suspension as it flows through the cell. Additional zinc powder and/or electrolyte may be introduced through a hopper 17 and spent suspension may be removed through a pipe 19. A proportion of the suspension may be passed through a separator S to separate the electrolyte part of the suspension and return this electrolyte to the cell through pipe 16. The function performed by the pump 13 may be alternatively performed by bubbling gas under pressure through the anode compartment of the cell or by a mobile membrane.
Patent GB-1293470-A (GB)
Title: Improved allergenic extract and process for preparing same
IPC: A61K39/35
Filed: 1970-04-02
Abstract: 1293470 Allergenic extracts MILES LABORATORIES Inc 2 April 1970 [3 April 1969] 15736/70 Addition to 1292434 Heading A5B An extract of an active substance capable of giving an allergenic or antigenic response and containing physiologically active principles is prepared by (1) extracting the active substance with an aqueous extracting fluid; (2) separating the aqueous extracting fluid containing the water-soluble active principles from the insoluble material therein; (3) extracting the insoluble material with an organic solvent for proteinaceous substances; (4) separating the organic solvent containing the organic-solventsoluble active principles from the insoluble material therein; (5) combining the aqueous extracting fluid containing the water-soluble active principles with the organic solvent containing the organic-solvent-soluble active principles and insolubilizing the active principles contained therein by addition of an aluminium compound. The organic solvent may be a heterocyclic tertiary amine such as pyridine, quinoline, lutidine, collidine or picoline; optionally in admixture with an aqueous phase such as aqueous sodium hydroxide. The aluminium compound may be potassium aluminium sulphate or aluminium hydroxide. The insolubilized active principles may be resuspended in a physiologically acceptable aqueous fluid prior to use. The active substance extracted may be pollen, dust, epithelium, mould, insect material, seed, feathers or complex chemicals such as antibiotics.
Patent GB-105038-A (GB)
Title: Improvements in Surgical Drainage Appliances.
Inventor: LIDDELL JAMES ALEXANDER
IPC: A61M27/00
Filed: 1916-11-04
Abstract: 105,038. Liddell, J. A. Nov. 4, 1916. Drainage appliances.-An appliance for draining wounds consists of a rod or tube which is longitudinally ribbed or grooved externally, so that the body tissue forms part of the walls of the passage or passages by which liquid is evacuated. Figs. 2 to 5 show cross-sections of suitable constructions. The appliances are formed, preferably, of rubber.
Patent GB-776319-A (GB)
Title: A process for the treatment of hydrogen sulphide
Inventor: BAHR JOHANNES
IPC: C01B17/05
Filed: 1955-06-02
Abstract: In the partial oxidation of hydrogen sulphide-containing gas to produce a mixture comprising hydrogen sulphide and sulphur dioxide, and catalytic interaction of the hydrogen sulphide and sulphur dioxide to produce sulphur, unreacted hydrogen sulphide and sulphur dioxide are removed either together or in succession from the residual gas after the separation of sulphur by washing with one or more aqueous alkaline absorption solutions, and sulphur is subsequently recovered therefrom.  The sulphur dioxide may be removed first by washing with an aqueous solution of an alkali metal, alkaline earth metal, or ammonium, hydroxide, carbonate or sulphide. The resulting solution may be heated under pressure in the presence or absence of acid or with acid at atmospheric pressure, the SO2 thereby liberated being returned to the process.  The hydrogen sulphide may thereafter be removed by washing with an aqueous solution of caustic potash, ammonia, triethanolamine, or an alkali metal salt of an amino acid.  The resulting solution may be freed from hydrogen sulphide by heating, the hydrogen sulphide liberated being returned to the process.  If the hydrogen sulphide to be converted is obtained by washing from coke oven gas, using the same washing solution a common regeneration installation may be used. Hydrogen sulphide may be completely removed in a third washing step, e.g. with a solution of an alkali or alkaline earth metal hydroxide. The resulting sulphide solution may be used for washing and the sulphur dioxide.  A similar solution obtained by washing out residual hydrogen sulphide from water-immiscible solvents, e.g. benzine, may also be used for washing out the sulphur dioxide. In the example the sulphur dioxide is removed by washing with ammonia solution containing sufficient ammonia to combine with the sulphur dioxide. The sulphur dioxide is then recovered by treatment with sulphuric acid while the sulphate produced is worked up to solid salt.  The hydrogen sulphide is then removed by further washing with ammonia solution.
Patent GB-116298-A (GB)
Title: Improvements in the Construction of Machines for Sweeping Streets and Placing the Sweepings into Ordinary Horse Drawn or Motor Propelled Vehicles.
Inventor: NEECH JAMES THOMAS
IPC: E01H1/04
Filed: 1917-06-07
Abstract: 116,298. Neech, J. T. June 7, 1917 Sweeping-machines; taking up refuse for removal.-Relates to machines having a rotary brush and an elevator for delivering the sweepings to a cart or motor-vehicle to which the machine is attached, and consists in providing, in combination, a channelled wiper continuously in engagement with the bristles of the brush, and a curved elevator trough within which operates an endless chain of scrapers encompassing the floor of the trough. In the form shown, the brush A is carried by a pivoting frame B to which is connected, by arms N and adjusting means P, the channelled wiper L. The elevator is formed of a curved trough having a floor V over the upper surface of which the refuse is moved by rigid scrapers U and flexible scrapers 5 carried by endless chains T passing over sprocket wheels T<1> and guided on ledges 3 on the trough to prevent vibration. The idle portions of the chains are guided by rollers 4 so as to remain parallel with the trough. The refuse is carried by the elevator over a shoot W leading to a bin X. Specification 15102/15 is referred to.
Patent GB-1460783-A (GB)
Title: Carbonaceous refractory materials and method  for their  preparation
IPC: C04B41/82
Filed: 1974-04-10
Abstract: 1460783 Refractory bodies SOC EUROPEENNE DES PRODUITS REFRACTAIRES 10 April 1974 [10 April 1973] 15889/74 Heading C1J [Also in Division C7] Refractory bodies for use in metallurgical installations are produced by agglomerating or fusing one or more refractory oxides and exposing the body to an atmosphere of CH 4 /H 2  at 1030‹-1400‹ C. such that carbon is deposited on the surface and in the pores of the body. Suitable refractories include MgO, MgO + chromite (FeCr 2 O 4 ), Al 2 O 3 .SiO 2 , and materials of the following compositions, (a) 58% MgO, 18% Cr 2 O 3 , 10% FeO, 9% Al 2 O 3 , 5% CaO + SiO 2 ; and (b) 73% Al 2 O 3 , 20% SiO 2 , 5% ZrO 2 , balance TiO 2 , CaO, Fe 2 O 3 ,Na 2 O.
Patent GB-659810-A (GB)
Title: Improvements in or relating to the production of benzene hexachloride
IPC: C07C17/02
Filed: 1947-06-18
Abstract: Benzene hexachloride enriched in g -isomer is prepared by chlorinating benzene below 40 DEG  C. with actinic irradiation, stopping the chlorination when 10-60 per cent, preferably 25-50 per cent, by volume of the benzene has been converted, removing the separated solid phase, and recovering the g -enriched product from the solution without further chlorination.  It is preferred to correlate the temperature of the separation step with the extent of chlorination, i.e. when it is 50 per cent or less, the separation temperature is not higher than 40 DEG  C., when it is more than 50 per cent the separation temperature is 40-80 DEG  C., and when it is 40 per cent or less the temperature used is about 25 DEG  C.  Liquid chlorine may be used.  It is preferred to use agitation during chlorination and to remove excess chlorine, e.g. by air-blowing, from the solution.  The g -enriched product may be chilled at 0-5 DEG  C. to crystallize it in part.  An example is given of the process in which 50 per cent of the benzene is chlorinated and the separation temperature is 20 DEG  C.  The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specification 656,457.  This subject-matter does not appear in the Specification as accepted.ALSO:A benzine hexachloride rich in the g -isomer (prepared by the chlorination of benzene to an extent of 10-60 per cent, removal of precipitated g - and b -isomers, and recovery of the g -isomer from the residual solution) is used as an insecticide; it may be mixed with a carrier such as clay or pyrophyllite, made into a spray by dissolving in e.g. toluene, xylene or methylnaphthalene, or emulsified in a xylene solution with water in the presence of, for example, alkylphenoxy polyethoxy ethanol. The enriched product employed as above contains at least 20-30 per cent and possibly as much as 90 per cent of the g -isomer. Specification 656,457 is referred to.
Patent GB-944234-A (GB)
Title: Improvements in panel indicator lamps
Inventor: QUIDDINGTON ERIC DANIEL
IPC: H01R33/00
Filed: 1959-05-12
Abstract: 944,234. Indicator lamps. ERICSSON TELEPHONES Ltd. May 6, 1960 [May 12, 1959], No. 16176/59. Heading F4R. A panel indicator lamp for an electrical apparatus housing having at least one substantially opaque panel 11 of plastics material comprises a lamp 10 mounted behind the panel, the area of the panel in front of the lamp being of such reduced thickness that it is translucent. The area may be produced by moulding during the formation of the panel or by subsequent machining and may have a prismatic or lenticular formation, e.g. in the form of a fresnel lens. The lamp may be enclosed in a sheath 15 of white plastics material having good reflecting properties.
Patent GB-662809-A (GB)
Title: Improvements in and relating to vertical shaft alternators
Inventor: NEVILLE SIDNEY
IPC: H02K5/167
Filed: 1949-06-17
Abstract: 662,809. Dynamo electric machines. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. June 15, 1950 [June 17, 1949], No. 16231/49. Class 35. The top cover structure 13 of a vertical shaft alternator is centrally supported by a bearing 15 on the alternator shaft. The top cover, which also carries the governor gear 19 and exciter 30, may comprise a floor as shown or, for outdoor machines, a radially sloping roof.
Patent GB-265848-A (GB)
Title: Improvements in apparatus for filtering liquid fuel
IPC: B01D35/00
Filed: 1926-06-28
Abstract: 265,848. Pelletier, H. E. June 28, 1926. Drawings to Specification. Mineral oils, purifying.-In a device for filtering liquid fuel the liquid under treatment is admitted to the filter casing through a pipe which passes downward centrally and is open at the lower end. The liquid is thus spread out in a layer of water or other liquid and rises therethrough to pass away through a woven wire screen. Alcohol or glycerine or both of these, may be added to the water to lower the freezing point.
Patent GB-689477-A (GB)
Title: Improvements in the impulse sender of automatic telephone dial mechanism
IPC: H04M1/34
Filed: 1950-07-29
Abstract: 689,477. Impulse transmitters. NEW SYSTEM TELEPHONES PTY., Ltd. June 29, 1950 [July 12, 1949], No. 16247/50. Class 40 (iv). In a trigger type of dial mechanism in which a rocker 6 normally co - operating with an impulse wheel 9 to actuate impulsing springs 13 is displaced as shown in Fig. 4 by the impulse wheel teeth during the setting movement, and at the commencement of the return movement provides a lostmotion period before resuming its normal position, the rocker consists of a single unit which is freely supported from a base-plate 17 by engagement of a fixed pin 19 with a bearing slot 8. The rocker is controlled by a leaf-spring 15 which also maintains it in position by engagement with an integral extension 18, and may be of solid construction or alternatively formed of metal and plastic laminations. A pin 10 or a roller bearing engages the impulse teeth. In a modification, a coil spring housed in the rocker replaces the leaf-spring 15. A further modification comprises omitting the slot 8 and slidably mounting the rocker in a forked or slotted pin which is rotatably mounted on the base-plate.
Patent GB-1291734-A (GB)
Title: Mining machine and method
IPC: E21F1/00
Filed: 1970-04-06
Abstract: 1291734 Ventilating mines JOY MFG CO 6 April 1970 [15 April 1969] 16253/70 Heading F4V [Also in Division E1] Flow of ventilating air across the face of a heading being driven by cutter means 24 mounted at the forward end of a vertically swingable boom of the machine driving the heading is maintained at a rate sufficiently high as to ensure adequate dilution of any gas released at the face by augmenting the natural air flow across the face by boom-mounted, air flowcreating means such as an axial fan mounted in ducting 29 before a flap valve-controlled trunking bifurcation from which air can be delivered, as required, to either or to both ends of the cutter means 24.
Patent GB-1209077-A (GB)
Title: Prefabricated platform-floor
IPC: E04B1/343
Filed: 1968-04-04
Abstract: 1,209,077. Elevated floors. BIURO URZADZEN TECHNIKI JADROWEJ. 4 April, 1968 [6 April, 1967], No. 16300/68. Heading E1W. Elevated floor panels 2 having quadrant corner cut-outs are mounted about cylindrical pins 1 carried by vertically adjustable posts 6, 12, the panels being supported on beams 3 interconnecting the posts or on a plate connected to the post by a ball joint, see Fig. 3 (not shown). The panels may be made of plywood or comprise a ribbed aluminium casting and may be coated with polyvinylchloride 17.
Patent GB-561748-A (GB)
Title: Improvements in or relating to flux for use in the treatment of light metal
IPC: C22B9/10
Filed: 1942-11-18
Abstract: 561,748. Flux. MAGNESIUM ELEKTRON, Ltd., and LEECH, H. R. Nov. 18, 1942, Nos. 16310/42 and 188/43. [Class 82 (i)] Flux for use in melting magnesium, magnesium base alloys, and aluminium base alloys containing magnesium has a composition within the following range, viz : magnesium chloride 4-20 per cent, calcium chloride 25-55 per cent, sodium chloride 5-40 per cent, potassium chloride 5-40 per cent, and magnesium oxide 0-5 per cent. The sodium chloride and potassium chloride together amount to between 30 per cent and 60 per cent, and the five ingredients, excluding any impurities therein, amount to at least 95 per cent of the total. Various narrower ranges are given in the Specification, together with specific compositions of fluxes. Specifications 539,023 and 539,024 are referred to.
Patent GB-342630-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: H02P29/00
Filed: 1930-05-27
Abstract: 342,630. Grinding or disintegrating wood. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. -(Assignees of Rogers, H. W. ; 10, Parkwood Boulevard, Schenectady, New York, U.S.A.) May 27, 1930, No. 16318. Convention date, May 27, 1929. [Class 59.] A motor 22 feeding material to a grindstone 10 of a magazine pulp grinding machine, is controlled according to the load on the synchronous motor 12 driving the grindstone. The control device comprises a synchronous dynamometer 27 which determines the lag between the rotor and stator fields of the motor 12 and adjusts the field resistance 26 of the motor 22.
Patent GB-355375-A (GB)
Title: Improvements in bird nest linings
IPC: A01K31/16
Filed: 1930-05-27
Abstract: 355,375. Nests. JENKINS, H. W., Lewins Mead, Bristol. May 27, 1930, No. 16338. [Class 5 (ii).] A nest lining comprises a layer of paper 1 interposed and secured by adhesive between an inner sheet 2 of swansdown and an outer sheet 3 of swansdown and fashioned to the shape of a natural nest. An outwardly extending lip 4 is provided to assist in retaining the shape of the lining.
Patent GB-747939-A (GB)
Title: Transversely flexible coupling
IPC: F16D3/04
Filed: 1954-06-03
Abstract: 747,939. Universal joints. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 3, 1954 [June 6, 1953], No. 16454/54. Class 80(2) A universal joint between shafts 1, 3 comprises two pairs of pins 31, 49 on members 23<SP>1</SP>, 23 secured to the shafts, each pin engaging in one of the outer recesses of W-shaped plates 33, 45 pressed outwards by springs 43, 47 and disposed between a pair of dished discs 37, 39 secured together by two pairs of pins 35, 51 which are engaged in the other outer recesses of the plates 33, 45. The discs 37, 39 have clearance holes 41 for the pins 31, 49. Each set of four pins 31, 35 or 49, 51 form the corner of a parallelogram, the two parallelograms being at right-angles. Alternatively, the plates 33, 45 may be inverted, being then drawn inwards by springs. Each member 23, 23<SP>1</SP> is T-shaped, with the stem 25 slotted at 27, bent back as shown in Fig. 4, and secured on the shaft by a clamping bolt 29.
Patent GB-420979-A (GB)
Title: Improvements relating to electrical power plant
IPC: H02K47/16
Filed: 1933-06-08
Abstract: 420,979. Equalizing load on generators; charging batteries. PESTARINI, G. M., 4, Tapton House Road, Sheffield. June 8, 1933, No. 16480. [Class 38 (iv)] In an electric generating plant a prime mover is coupled with a metadyne dynamo. electric machine and a regulating dynamoelectric machine, a battery being connected across the primary brushes of the metadyne machine so that the load on the prime mover is maintained at a constant value. The regulating machine R is connected through a regulating primary variator winding PRW to the primary brushes A, C whilst another primary variator winding PVW is connected across the battery SB. The load M1, M2, M3, is connected across the secondary brushes B, D. A secondary variator winding SVW may be used to assist the secondary armature flux. At a critical speed the E.M.F. generated by the machine R is equal to the E.M.F. of the battery so that no current flows through the variator winding PRW. The winding PVW then modifies the primary flux, so that the metadyne supplies the total load. When the load M1 falls, the set begins to overspeed and current flows from the machine R to the battery SB through the winding PRW. This modifies the primary flux and causes the metadyne machine to charge the battery to provide the extra load on the power shaft. When the load produced by the motors M1, M2, M3, is in excess of the selected value, the speed of the set falls and current flows from the battery SB to the machine R so that the metadyne action is arranged to supply power from the battery to the load. In order to prevent overcharging of the battery a relay responsive to the voltage of the battery controls the fuel input of the prime mover. In Fig. 4 this relay consists of an electric motor T. In a modification (not shown) the regulating variation winding may act along both the primary and secondary brush axes and may comprise an inclined winding which combines the two effects. British Specification 417,517. and French Specifications 547,855, 623,438, and 637,946 are referred to.
Patent GB-1127399-A (GB)
Title: Process for preparing 5'-nucleotides
IPC: C12P19/30
Filed: 1967-04-11
Abstract: 1,127,399. 5<SP>1</SP>-Nucleotides by fermentation; hypoxanthine. KYOWA HAKKO KOGYO CO. Ltd. 11 April, 1967 [15 April, 1966], No. 16571/67. Heading C2C. 5<SP>1</SP>-Nucleotides are prepared by culturing a mutant strain belonging to the genus Brevibacterium or Corynebacterium, said mutant strain being capable of producing 5<SP>1</SP>-nucleotides regardless of the presence of excess manganese, in an aqueous nutrient medium containing an excess of manganese ion under aerobic conditions at a temperature between 20‹ and 40‹ C. and a pH of from 5 to 9. Specified 5<SP>1</SP>-nucleotides are 5<SP>1</SP>-inosinic acid, 5<SP>1</SP>-guanylic acid, 5<SP>1</SP>- adenylic acid, 5<SP>1</SP>-uridylic acid, and specified micro-organisms are strains of Brevibacterium ammoniagenes and Corynebacterium glutamicum. Hypoxanthine is produced as a by-product (see Example 2).
Patent GB-1308694-A (GB)
Title: Sectional frame for refrigerators
IPC: F25D23/08
Filed: 1970-04-08
Abstract: 1308694 Refrigerators INDUSTRIE A ZANUSSI SpA 8 April 1970 [8 May 1969] 16700/70 Heading F4H A refrigerator frame section comprises two snap interfitting members which provide cavities for housing electric cables, refrigerant lines and door lock elements, one of the elements having hooks embedded in foamed polyurethane insulation. As illustrated, one member 10 has hooks 13 embedded in insulation 12, and the other member 11 has an element 14 which is a snap fit in an opening in the member 10 and may be removed to give easy access to components housed in cavities in the section. The components may include a refrigerant line 22, a door lock element 17, and a door seal defrost heater and a push button electric switch, Fig. 2 (not shown). The element 17 is secured to a reinforcing member 16.
Patent GB-493832-A (GB)
Title: Improvements in or relating to the propulsion of cycles
IPC: B62M1/12
Filed: 1938-06-07
Abstract: 493,832. Cycle driving mechanism. STETTLER, A. June 7, 1938, No. 16804. [Class 136 (ii)] Supplementary hand driving-mechanism for cycles comprises a hand lever pivoted on the head tube and connected by linkage to a freewheel clutch mechanism on the spindle of the pedal-crank mechanism. A hand lever 3 is pivoted to a clip 2 on the head tube 1 so that it can be oscillated backwards and forwards by means of a handle 5, without interfering in any position with the steering movements of the usual handle-bar 4. A pin 6 on the lever 3 forms a pivot for two strip-steel or other links 7, 8, which are arranged side by side and are so formed as to diverge as shown, towards their lower ends, which are pivoted to levers 12, 11 respectively, mounted freely on the crank spindle 9. The levers 12, 11 carry pawls 15, 14, which alternately drive a ratchet wheel 10 on the spindle 9 in the forward direction only. The ratchet mechanism may be enclosed in a protective casing. The freewheel clutch mechanism may alternatively be of the wedging-roller type.