baber/WOPTO huggingface dataset:
Patent GB-784275-A (GB)
Title: Improvements in or relating to halogenated insecticidal compositions and to processes for the production thereof
IPC: C07C17/30
Filed: 1955-12-06
Abstract: The invention comprises an insecticidal composition containing the compound <FORM:0784275/IV (a)/1> in which X is chlorine or bromine, and also with by-products, made by the reaction between a hexachlorocyclopentadiene-allyl chloride, allyl bromide, or acrolein adduct and chlorine to a chlorine content of 72-74 per cent for the compound containing chlorine only, or 58-74 per cent when bromine is present or by means of phosphorus pentachloride.  In examples the adduct of hexachlorocyclopentadiene and allyl chloride is made and chlorinated in presence of actinic light to give a product of the above formula in which X is Cl; the same product is also obtained by the action of phosphorus pentachloride on the adduct of hexachlorocyclopentadiene and acrolein which has -CHO in the 2-position; an adduct of allyl bromide and hexachlorocyclopentadiene may also be chlorinated to give a product of the above formula in which X is Br.ALSO:The invention comprises insecticidal compositions containing the compound <FORM:0784275/VI/1> in which X is Cl or Br, or by-products of the same obtainable by the chlorination of Diels-Alder adducts of hexachlorocyclopentadiene and allyl chloride, allyl bromide or acrolein (see Group IV (b)).  Minor quantities of other toxicants may be included in the compositions, with conventional solvents, surface - active agents, propellants, solids such as clay, synergists, and adhesives, for emulsions, dispersions, dusts, sprays and aerosols.
Patent GB-1386244-A (GB)
Title: Beta-alumina
IPC: C04B35/113
Filed: 1971-07-26
Abstract: 1386244 Beta-alumina UNITED KINGDOM ATOMIC ENERGY AUTHORITY 23 Aug 1972 [26 July 1971] 35003/71 Headings ClJ and C1A [Also in Division H1] #-Alumina is obtained by calcining a waterdispersible alumina gel doped with sodium ions. The doped gel may be formed from the corresponding doped sol, the sol being doped by addition of sodium water-soluble salts and optionally salts of magnesium and other metals. Preparation of the sol may involve denitration of hydrated aluminium nitrate or substitution of chlorine ions in aluminium chlorhydrate solution. In Example 1 aluminium nitrate, Al(NO 3 ) 3 9H 2 O, was heated to give off H 2 O and HNO 3  forming a powder, AlONO 3 .2H 2 O, the powder then being dispersed in boiling water to give a nitrate sol which was then evaporated to an alumina sol. In Example 2 aluminium chlorhydrate was poured into NH 4 OH to form an alumina gel, this being dispersed in HNO 3  to give a sol and concentrated to give an alumina sol. In Example 3 doped sol was dispersed in "Genklene" (Registered Trade Mark) containing a surfactant, the resultant spherical particles gelled by "Primene" (Registered Trade Mark), washed, oven dried and calcined at 700- 1500‹ C. Example 4 describes a similar method for preparing 15 Á spheres of #-alumina and the preparation of an artifact by plasma spraying and firing.
Patent GB-1190312-A (GB)
Title: Plant-Growth Regulants
Inventor: HILL KENNETH LEE
IPC: C07D271/08
Filed: 1968-07-23
Abstract: 1,190,312. Plant growth regulants. FMC CORP. 23 July, 1968, No. 35036/68. Heading C1B. Plants are treated with phenylfuroxan, which may be applied as a 0À0005-95% solid or liquid composition containing a carrier and surfaceactive agent, at the rate of 0À5-200 lb./acre. A synergistic effect is produced with 3-indole acetic acid.
Patent GB-492740-A (GB)
Title: Improvements in and relating to the dephosphorising and/or desulphurising of steel
IPC: C21C5/28
Filed: 1936-12-21
Abstract: In the manufacture of steel by Bessemer process, the silicon content of the steel is increased sufficiently to furnish extra heat by oxidation of the additional silicon, the blow commenced and in the case of a basic converter under a slag which removes a portion of the phosphorus in the metal, the blow stopped when there is still more phosphorus left than is required in the final steel, the slag poured and prior to a second short blow dephosphorizing and/or desulphurizing materials added, these materials being melted by the extra heat to form a second slag. In the basic process the metal to be treated contains not less than 0,5 per cent of silicon, preferably between 0,5-1,0, and less than 0,7 of manganese, and the first blow is stopped when the phosphorous content is above 0,08 per cent.  The steel may be desulphurized with soda before treatment in the converter. In an example, the first slag is produced by an addition of lime, and the second by the addition of a mixture of lime, fluorspar, mill scale and a small amount of gravel.  Specifications 19053/04, [Class 72], and 474,224 are referred to.
Patent GB-466404-A (GB)
Title: Improvements in electric valve amplifying systems
IPC: H03F1/36
Filed: 1936-12-21
Abstract: 466,404. Valve amplifying circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Dec. 21,1936, No. 35121. Convention date, Dec. 23, 1935. [Class 40 (v)] In an amplifier in which a loud-speaker or other load 13 is coupled to the output valve 2 by a transformer 8, negative feed-back is pro vided for minimizing distortion by including the load, or a part thereof, in the cathode lead 5 of an earlier valve 1 of the amplifier. Alternatively, the reaction may be provided by a third winding on the transformer 8, or by a tapping on a potentiometer connected across the transformer secondary coil. The poten- 'tiometer may comprise an inductance coil or a capacity to produce frequency discrimination. The ratio of the output voltage of the valve 2 to the feed-back voltage should be large compared with the voltage amplification of the valve stages. Specification 323,823, [Class 40 (v)], is referred to.
Patent GB-1206358-A (GB)
Title: Outflow regulator for liquid sealed gas stuffing boxes
Inventor: OBERLE ARTUR
IPC: F01D11/06
Filed: 1968-07-23
Abstract: 1,206,358. Valves; shaft seals. BROWN, BOVERI & CO. Ltd. 23 July, 1968 [25 July, 1967], No. 35127/68. Headings F2B and F2V. [Also in Divisions F1 and G3] The rotor shaft of a turbine or, as shown, a compressor, extends through chambers 2, 5 inboard of a bearing 4, chamber 2 being supplied with oil at a pressure maintained at a constant level above the gas pressure at 6 by regulator 10. Any oil leaking past sealing member 3 into chamber 5 passes to the interior of valve 12 where it collects and raises float 23 controlling a pilot valve 21. The latter is mounted within differential piston 18 and controls the pressure in the chamber above the major face 20 of the piston by connecting the chamber to the oil supply line 9 via 14, 32, 33 or to drain chamber 35 via 33 and passages in sleeve 26. The piston thereby follows pilot valve member to position valve member 27 to allow oil return to sump 7. In Fig. 2, when valve member 27 is fully open, relative to seat 38, continued upward movement of the piston causes flange 42 to abut seat 38 at 43, thereby lifting the seat to allow additional flow through seat 28.
Patent GB-1520257-A (GB)
Title: Member for producing a frame for a window a door or the like
IPC: E06B3/24
Filed: 1975-08-26
Abstract: 1520257 Multiple glazing panel WILH FRANK GmbH 26 Aug 1975 [26 Aug 1974] 35143/75 Heading E1R A frame member for a double-(Fig. 1 not shown) or multiple glazed panel comprises a web 35 with walls 36-41 forming channels 32, 33, 34, for receiving panes 55, 56, 57, with chambers 46, 47 for desiccating agents between the channels; the walls 36-41 are of unequal height being arranged so that each channel has walls of unequal height forming a stepped series across the member from side to side, the outermost channel (when installed) may have walls of equal height (see Fig. 1 not shown). A resilient sealant 58 is provided. Due to the arrangement of the wall heights pane 55 may be inserted into the frame members first followed by panes 56 and 57 the members being moved inwards each time, finally pressing the panes fully home and forming the sealed panel.
Patent GB-1193429-A (GB)
Title: Tents
Inventor: WARING RAYMOND HUGH
IPC: E04H15/42
Filed: 1966-08-05
Abstract: 1,193,429. Tensioning devices. R. H. WARING and D. M. BROHN. 27 July, 1967 [5 Aug., 1966], No. 35164/66. Heading F2G. [Also in Division E1] A device for tensioning a tent wire or rope 32 consists of a hammer-like member 61 having a wire attachment stud 66 or a hook (see Fig. 10, not shown), a reinforcing bracket 68 and a fin 67 with an arcuate portion 73 adapted to fit into a slot 74 in a tent frame member 43.
Patent GB-1008139-A (GB)
Title: Container for holding cartons
IPC: B65D5/02
Filed: 1964-08-28
Abstract: 1,008,139. Cartons. PROCTER & GAMBLE CO. Aug. 28, 1964 [Aug. 29, 1963], No. 35327/ 64. Heading B8P. A container for holding cartons, formed from a single blank as shown in Fig. 1, has one pair of end wall 12 flaps 12a, 12b each slotted along a line perpendicular to the flap hinge lines 14, 15. Each of these slots 22, 23 extends from the outer flap edge to a point short of the respective flap hinge line. The other end wall is constructed in two parts 13a, 13b lying at opposite ends of the container blank. The widths of these two parts 13a, 13b are not equal but are such that on folding about hinge line 18 the soft seal glue flap 24 of the end part 13b overlies the adhesion area 27 of end part 13a. At the retailer's the container full of cartons is placed so that glue flap 24 may be lifted to break the soft seal. As the pulling of the flap continues a hinge line between the upwardly raised half of the container and the tray comprising the bottom is formed across end wall 12 in line with the slots 22 and 23.
Patent GB-944096-A (GB)
Title: Electric switch
Inventor: HOLDEN BRIAN ASTBURY
IPC: H01H13/10
Filed: 1959-10-19
Abstract: 944,096. Press-button retractive switches; mounting switch contacts. BURGESS PRODUCTS CO. Ltd. Aug. 22, 1960 [Oct. 19, 1959], No. 35394/59. Heading H2B. A switch that may be safely subjected to large temperature changes comprises a ceramic base 1 on which the component switch parts are resiliently mounted by means of hollow rivets having their heads 12 turned over washers 14 with the interposition of crinkle spring washers 13 between the washers 14 and the base 1. The washers 14 are square and fit into a channel 2 in the base 1 thereby preventing rotation of the rivets and associated switch components. The rivets are threaded to receive screws 15 forming terminals for the switch, one of which is connected to a fixed contact 18, another to a fixed contact 17, and a third to a bracket 22 supporting the moving-contact arm 28 and actuator member 34. The bracket 22 is bifurcated to provide two prongs 25 having notches 26 in which the two ends of the correspondingly bifurcated arm 28 are pivoted. The actuator 34 is shaped as shown with a tongue 35 located in the bottom of the slot between prongs 25, and a curved part 36 engaging a push-button 38. A tension spring 30 extends between arm 28 and actuator 34 and normally holds the moving contact against fixed contact 18. When button 38 is depressed, spring 30 passes over-centre and snaps the moving contact across to fixed contact 17. When pressure is removed from button 38 the spring 30 restores actuator 34 and the arm 28 snaps back into the position shown. The button 38 is carried in a sheet metal cover 7 secured to the base 1 by means of lugs 6 bent under into recesses 5 formed in the side walls 3 of channel 2. Holes 9 are provided at each end of base 1 for mounting the switch on a support indicated at 10.
Patent GB-758179-A (GB)
Title: Improvements in and relating to photographic cameras with interchangeable objectives
IPC: G03B13/20
Filed: 1954-12-07
Abstract: 758,179. Photographic cameras with interchangeable objectives. VOIGTLANDER AKT.- GES. Dec. 7,1954 [Dec. 7, 1953], No. 35441/54. Classes 97 (1) and 98 (1). A photographic camera with exchangeable objectives has built-in mechanism for focusing the objective interconnected with a rangefinder so that the adjustment of the two is related for an objective of a given focal length, and an objective exchangeable therewith has a component which is moved alone for focusing and which has an effective focal length which up to corrections of a higher order is equal to the given focal length. A ring 7, Fig. 2, slidable in the body 1 of the camera, is coupled to a built-in range-finder (not shown) in such a way that a lens of a given focal length fN, when attached to ring 7, will focus objects at the distance to which the range-finder is adjusted on a photographic film Z. When the lens is removed for exchange, a second lens in a mount 11 is fixedly mounted on the camera by a bayonet joint 12. This objective may be of the kind described in Specification 682,605, having three components 13, 14, 19. Components 13, 14 are fixedly mounted in mount 11, with an iris diaphragm 16 between them, but the front component 19, which has the focal length fN, is slidable for focusing inside mount 11. Rods 18 are connected to a ring 17 urged by springs 20 against ring 7, and transmit the movement of ring 7 to the front component 19 so that the range-finder can be used to focus the substituted lens. When the substituted lens is substantially longer than the lens of given focal length, the focal length of the movable component is modified to allow for differences in the positions of the front focal points of the objectives. The substituted lens may be a telephoto lens. The front lens may be split, the front part only being movable, or the lens behind it may be split, its front part being movable together with the front component. The lenses and lens parts lying before or behind the split may be cemented together. The split may be bounded by plane or curved surfaces.
Patent GB-1499155-A (GB)
Title: Pneumatic vehicle tyre
IPC: B60C11/11
Filed: 1975-08-28
Abstract: 1499155 Pneumatic tyre treads CONTINENTAL GUMMI-WERKE AG 28 Aug 1975 [4 Sept 1974] 35454/75 Heading B7C A pneumatic tyre has a tread comprising circumferentially-extending rows 1, 2, 3, 4 of blocks 5 which are separated by zig-zag or undulating grooves 7 having a width h equal to substantially half the width b of groove portions extending in the circumferential direction R, successive blocks 5 of each circumferentiallyextending row 2, 3 being offset in the transverse direction by a dimension a equal to substantially half the length measured in the transverse direction, of the blocks 5 of the circumferentially-extending rows 2, 3. As illustrated, the groove portion width b is equal to substantially two thirds of the offset dimension a. The blocks 5 have indentations 10.
Patent GB-298970-A (GB)
Title: Improvements in devices for attaching hangers or bolts to electric insulators
IPC: H01B17/02
Filed: 1927-12-31
Abstract: 298,970. Steatit-Magnesia Akt.-Ges. Oct. 18, 1927, [Convention date]. Addition to 285,453. Insulators. - The bearing ring or crown for supporting the head of the bolt or hanger described in the parent Specification is formed of a series of thin discs or laminae united together or formed integrally. The crown may consist of a number of discs 16 united by welding at 17 or made by sawing a circular bar with a series of deep grooves. In a modification, the bar may be sawn to form alternate grooves on opposite sides. The laminae may be formed by turning deep grooves 24, as in Fig. 7, or by cutting a deep screw thread on a lathe as in Fig. 9. In a further modification, the crown may be formed by winding a metal strip 29, Fig. 11, on a mandrel.
Patent GB-410545-A (GB)
Title: Improvements in or relating to incubators
IPC: A01K41/06
Filed: 1932-12-15
Abstract: 410,545. Hatching - appliances. GLOUCESTER INCUBATOR CO., Ltd., and WRENTMORE, G. W., Woodchester, Stroud, Gloucestershire. Dec. 15, 1932, No. 35589. [Class 5 (ii).] An egg-supporting tray for use in incubators comprises a number of racks each consisting of parallel wires or rods forming channels and on which are mounted a number of partition elements of a fixed or adjustable character, the said rods or wires being mounted in end members capable of being tilted about pivots. Parallel wires or rods c are mounted in slotted end-plates d pivoted on pins e carried in the ends of the framework of the egg tray, the wires or rods forming racks each supporting two rows of eggs. The tilting mechanism comprises an external handle or handwheel operating, through a toothed quadrant and rack bar, a vertical rod o engaging the forked end u of a bar k mounted in the tray and connected to a bar h by a pin k<1> slidably engaging a slotted bracket on the bar ; the bar h carries pins g engaging the slots in the plates d ; by pulling on the bar k, the fork n can be disconnected from the rod o. Adjustable partition elements are mounted on the wires or rods in frictional contact therewith. In a modification, each rack is slidably mounted i n the tray and, in a further modification, fixed partition elements are maintained in spaced relationship by sleeves mounted on the rods or wires.
Patent GB-1497134-A (GB)
Title: Electrolytic method for treating liquids
IPC: A61L2/03
Filed: 1975-08-28
Abstract: 1497134 Electrolytic sterilization of liquids SACHS SYSTEMTECHNIK GmbH 28 Aug 1975 [5 Sept 1974] 35603/75 Heading C7B  Liquids are sterilized or decontaminized by anodic oxidation in a cell comprising a plurality of auxiliary bi-polar electrodes 6 arranged between main electrodes 4, 5 and insulated from each other and from the main electrodes as at 7. Such electrodes may be parallel with themselves and the liquid through flow direction, the spacing of adjacent electrodes being such that equal potential exists between them when the main electrodes are energized. Plate or coaxial cylinder electrodes may be used, the cathodic surfaces of which may have a porous non-conducting covering whereby to reduce the effect of cathodic reduction. Pulsating current may be applied and operation may be such that the formula F = K.V is met, where F = anode area (cm<SP>2</SP>), V = throughflow (cc/sec) and K = a constant between 30 and 160 of dimensions sec/cm.
Patent GB-443703-A (GB)
Title: Improvements in and relating to the manufacture of moulded articles by injection moulding
IPC: B29C45/00
Filed: 1934-05-23
Abstract: The process of injection moulding described in the parent Specification is modified by using non-thermo-setting thermo-plastic materials which have a heat resistance from 65 to 100 DEG  C. according to the Martens criterion and which contain considerable proportions of asbestos and mineral fillers.  The binding material may comprise natural or artificial resins and, due to their composition, the materials are stated not to undergo a rapid decrease in viscosity when heated somewhat above the lowest temperature suitable for moulding.  Thus natural resin mixtures may be heated to 240 DEG  C. and pitch mixtures to 140 DEG  C., the mould being maintained at 100 to 150 DEG  C. and 60 DEG  C. respectively.
Patent GB-893943-A (GB)
Title: Improvements relating to bistable electronic circuits
Inventor: CLOOT PETER LEONARD
IPC: H03K5/05
Filed: 1959-10-21
Abstract: 893,943. Transistor bi-stable circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 3, 1960 [Oct. 21, 1959], No. 35717/59. Class 40(6). A bi-stable circuit comprises a transistor 1 to the base of which is connected a gate 5, through which pulses may pass to the base, the pulses being of such an amplitude and repetition rate that the transistor is held saturated, and a direct connection from the collector to the gate whereby the gate is held closed or open depending on whether or not the transistor is cut off or conducting. Transistor 1 is normally biased to cut off by the positive line +V, and pulses from the pulse generator 6 pass through diode D2 to cause the transistor to saturate, storage in the base ensuring that it remains saturated during intervals between pulses. When transistor 1 is saturated, the potential at B due to connection 7 is such that the gate remains open to allow the pulses to reach the base. Application of a negative pulse to I will close the gate causing the transistor to cut off. The potential fed over lead 7 to B is now such as to hold the gate shut until a positive pulse is applied to I to re-open it.
Patent GB-741274-A (GB)
Title: í¸ -3-keto-11-hydroxy-20-cyano-21-hydroxy pregnene and its 21-acyl derivatives and preparation of same
IPC: C07J41/00
Filed: 1951-11-26
Abstract: The invention comprises a D 17:203-keto-11(b ) - hydroxy - 20 - cyano - 21 - hydroxypregnene and a 21-acyl derivative thereof and the preparation thereof by reacting a compound of the formula: <FORM:0741274/IV(a)/1> wherein R is hydrogen or a acyl radical with a reagent capable of replacing the keto group in the 3 position by a substituent reconvertible into ketone, e.g. hydroxylamine, semi-carbazide an aryl hydrazine or an alkyl orthoformate thereby forming the corresponding D 17(20)-11-keto - 20 - cyano - pregnene compound, reacting this compound with an alkali metal borohydride thereby converting the keto radical in the 11-position to an 11(b )-grouping without substantially affecting the substituents attached to the 3 and 20 carbon atoms, thereby producing a D 17(20)-11(b )-hydroxy-20-cyano-pregnen compound and reacting the latter compound with a hydrolysing agent followed by acylation if R is hydrogen.  As alkali metal borohydride there may be used lithium or sodium borohydride and this reaction is effected in the presence of a diluent e.g. tetrahydrofuran, dimethylformamide or diethyl ether. Examples describe the production of D 17(20)-3-keto-11(b )-hydroxy-20-cyano - 21 - acetoxy - pregnene.  Specification 741,223 is referred to.
Patent GB-1086488-A (GB)
Title: Improvements relating to capacitor microphones
IPC: H04R19/04
Filed: 1965-08-23
Abstract: 1,086,488. Capacitor microphones. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Aug. 23, 1965 [Aug. 26, 1964], No. 36055/65. Heading H4J. The stationary electrode of a capacitor microphone is supported on an insulating body which is sealed into a metal ring. In one arrangement shown in Fig. 1 a perforated stationary electrode 1 is sealed into a glass ring 2 which is itself sealed into a metal ring 3. The assembly shown is made by forming the metal ring 3 as a tube with a bottom having an upstanding centre portion forming the electrode. Molten glass is poured into the resulting annular trough in the bottom which is then ground away to reveal the glass and isolate the electrode. The metal ring, as distinct from the glass ring may be manufactured to fine tolerances enabling the microphones to be stacked in series.