baber/WOPTO huggingface dataset:
Patent GB-909895-A (GB)
Title: Improvements in or relating to the stabilisation of per compounds
Inventor: BANFIELD REGINALD HENRY
IPC: C07D213/22
Filed: 1959-03-04
Abstract: Aqueous solutions of hydrogen peroxide or peracids (for example per monosulphuric acid or peracetic acid) are stabilized by the addition of a water soluble salt of tripyridyl, for example the sulphate, nitrate, or phosphate, preferably in an amount of 10-500 p.p.m. Other stabilizers may also be added, for example tin salts, e.g. sodium stannate, soluble phosphates, e.g. phosphoric acid, sodium pyrophosphates and the molecularly dehydrated phosphates of the alkali or alkaline earth metals, e.g. tetraphosphates and hexa meta-phosphates.  The tripyridyl salt may be prepared by reacting the tripyridyl, which should be free of dipyridyl, with a slight excess of the appropriate acid. Specifications 465,070 and 713,156 are referred to.ALSO:Aqueous solutions of per-acids, for example per-acetic acid, are stabilized by the addition of a water-soluble salt of tripyridyl, for example the sulphate, nitrate, or phosphate, preferably in an amount of 10-500 p.p.m.  Other stabilizers may also be added, for example tin salts such as sodium stannate, or soluble phosphates such as phosphoric acid, sodium pyrophosphate, and the molecularly dehydrated phosphates of the alkali or alkaline earth metals, e.g. tetraphosphates and hexametaphosphates.  The tripyridyl salt may be prepared by reacting the tripyridyl, which should be free of dipyridyl, with a slight excess of the approximate acid. Specifications 465,070 and 713,156 are referred to.
Patent GB-548925-A (GB)
Title: Improvements in or relating to electric current collectors
IPC: B60L5/08
Filed: 1941-06-14
Abstract: 548,925. Current collectors for electric vehicles. BRITISH INSULATED CABLES, Ltd., LONDON PASSENGER TRANSPORT BOARD, HOLLAND, J., and POWELL, H. J. June 14, 1941, No. 7569. [Class 104 (iii)) A current collector comprises a grooved slipper 10 supported by trunnions the axis of which lies at or near the surface 12 of contact between the slipper and the conductor. The trunnions may be formed by the circular tops of pillars 7 rising from the table 6 rotatably mounted in the bracket 4 of the harp. The trunnions engage curved recesses 8 in the sides of the slipper, so that the slipper rocks on these curved surfaces, The slipper is attached by a screw 19 to a yoke 17 formed with a curved surface engaging a sleeve 21 on a pin 20 mounted in the pillars 7. A curved guide 23 prevents entanglement with the conductor gear if the trolly jumps the wire. The carbon contact is held up to shoulders 14 in the slipper by a spring 15 supported by 17.
Patent GB-826236-A (GB)
Title: Improvements in or relating to the separation of mixtures of benzene carboxylic acids
IPC: C07C51/48
Filed: 1956-03-12
Abstract: The invention comprises a process for separating isophthalic and terephthalic acid from a mixture containing these acids, with or without orthophthalic acid and/or benzoic acid, which comprises digesting the mixture at a temperature of 85-200 DEG  C. with an acetic acid solvent and separating the extract isophthalic acid solution from the undissolved solid terephthalic acid at temperatures in excess of 50 DEG  C., the amount of acetic acid solvent empolyed being sufficient to dissolve the isophthalic acid present, at the temperature of separation.  The isophthalic acid may then be recovered by cooling the extract solution, e.g. at 0-45 DEG  C. and separating off precipitated isophthalic acid. Any orthophthalic or benzoic acid present may be separated during the preliminary digestion or from the final filtrate and the orthophthalic acid may be dehydrated in the presence of e.g. acetic acid, formic acid, carbon disulphide or benzene, to form phthalic anhydride.  The first filtrate may also be treated with activated carbon prior to cooling. Examples are given. Specification 807,091 is referred to.
Patent GB-1193743-A (GB)
Title: Improvements relating to Rotary Pressure Exchangers
Inventor: WILLIAMSON DOUGLAS HERBERT
IPC: F01D5/08
Filed: 1968-02-16
Abstract: 1,193,743. Pressure exchangers. ROLLSROYCE Ltd. Feb. 7, 1969 [Feb. 16, 1968], No.7721/68. Heading F1N. A pressure exchanger rotor comprises inner and outer shrouds 14, 15 between which extend angularly spaced vanes, the vanes being formed from a plurality of vane portions 16 having complementary surfaces secured together and provided with grooves 21 for the passage of cooling air. In Fig. 2 the rotor is formed from sheet metal laminations corresponding in configuration to the crosssection of the rotor and bonded end-to-end. The grooves 21 are provided on one, or both, end surfaces of each vane portion 16. In Fig. 5 the rotor is formed from axially extending channel members 33 having their side walls 34 bonded to adjacent side walls and their edges received in recesses 36 in a shroud 25. The cooling grooves are provided in the outer surfaces of the side walls and may be "S" shaped. The grooves are produced by machining, imprinting, photo or chemical etching. engraving or electro-chemical machining.
Patent GB-642205-A (GB)
Title: Constant mesh transmission
IPC: F16H3/08
Filed: 1948-03-15
Abstract: 642,205. Variable-speed gearing. LETOURNEAU, Inc., R. G. March 15, 1948, No. 7789. Convention date, March 18, 1947. [Class 80(ii)] A variable-speed gearing comprises gears 22-25 fixed on layshafts 3-6 and in constant mesh with gears 26, 28 on a driven shaft 29, the layshafts extending into tubular shafts 8-11 to which they are adapted to be connected separately by fluid-actuated plate clutches 13- 16 and to which are secured gears 18-21 in constant mesh, a gear 17 on a tubular shaft 7 adapted to be connected to a driving shaft 2 by a fluid-actuated clutch 12 being in mesh with the gear 18. With the clutch 12 engaged, any one of the clutches 13-16 may be selectively engaged to give any one of two forward and two reverse speeds to the shaft 29. To double the number of .speeds. a further layshaft 31 may be provided, having a gear 35 meshing with a gear 34 on shaft 2 and adapted to be connected by a fluidactuated clutch 33 to a tubular shaft 32 carrying a gear 36 meshing with the gear 19. All the gears are disposed within a housing, the end wall 1 of which is shown, while the clutches are disposed outside the housing. Each tubular shaft, such as 11, is mounted in a ball bearing 41 in the wall 1 and the corresponding shaft 6 is journalled in the gear 21 integral with the tubular shaft 11. Each clutch, such as 16, comprises fricion plates 55 and 56 splined respectively on a hub 46 secured to the end of the shaft 6 and in a cylindrical member 48 secured to the end of the shaft 11. The clutch is engaged by supplying pressure fluid through a fitting 68 to the outer face of a diaphragm 61 which is secured by a ring 60 against an end cap 57 adjustably threaded in the cylinder 48 and which acts on the clutch plates through members 63, 66, 67. The clutch is normally disengaged by a spring 64. Ventilating ports 69 are provided in the member 48.
Patent GB-883280-A (GB)
Title: Improvements in the production of manganese pentacarbonyl hydride
Inventor: HIEBER WALTER
IPC: C01G45/04
Filed: 1959-03-06
Abstract: Manganese pentacarbonyl hydride is prepared by dissolving manganese pentacarbonyl in an inert polar organic liquid, adding a free-H ion containing medium and treating the resulting solution with a reducing agent.  In a modification the manganese pentacarbonyl may be dissolved in the inert polar organic liquid to which the free-H ion-containing medium has already been added. Reference is made to the use, as inert polar organic liquids, of alcohols, e.g. methyl-, ethyl- or propyl-alcohol or ethers, e.g. diethyl-, or dibutyl-ether, tetrahydrofuran, glycol ethers, dimethyl formamide or dioxane.  The free-H ion containing medium may be aqueous solutions of acids, e.g. sulphuric or hydrochloric acids, or organic acids such as formic or acetic, acid salts, e.g. sodium hydrogen sulphate or sodium dihydrogen phosphate or salts which react with water to form acids, for example aluminium trichloride.  The reducing agent may be any compound having a reducing action in acid solution, the use of metals, e.g. magnesium and aluminium, metal alloys and amalgams, the compound NaHSO2-CH2O, dithionite and formamidine sulphinic acid being specifically referred to.  The reaction may be carried out at normal or elevated temperatures preferably between 5 DEG C. and 100 DEG C. and at normal or increased pressure.  Specification 855,065 is referred to.
Patent GB-1426702-A (GB)
Title: Superconductive microwave filter
IPC: H01P7/08
Filed: 1974-02-20
Abstract: 1426702 Stripline microwave filters R MINET J DEBEAU and E L THEPAULT 20 Feb 1974 7828/74 Heading H1W A superconductive stripline filter is provided with remotely-adjustable dielectric tuning pads such that the filter can be tuned whilst inside a cryostat. The stripline is of the balanced or sandwiched" " type comprising two symmetrically arranged ground planes. The invention is applicable in particular to the filter described in Specification 1,421,311. As shown a line conductor pattern 89 made of lead is arranged between dielectric plates 59, 80, of, e.g. PTFE, which are, in turn, surrounded by ground plates 57, 58 of, e.g. lead or niobium. The filter is enclosed in a casing 51, 52, 83, 84 of aluminium and plates 55, 56 of a material having a low coefficient of thermal expansion, e.g. Invar (a Registered Trade Mark), are inserted between the casing and the ground plates. The filter configuration consists of a main transmission line and three evenly spaced half-wave resonant stubs attached to the main line at their approximate mid points. Dielectric tuning pads 36, 38, 37, 39, 43, 44 are associated with either end of each of the stubs and are arranged to slide in grooves provided in the dielectric plates 59, 80. A mechanism for remotely operating the pads, consisting of lead screws and sliding cross-heads, is described in detail (Figs. 4, 6, not shown). The lead screws and input/output coaxial line are brought out through the closure of the cryostat. Each screw is provided with an adjusting button and a rev. counter. The cryostat is charged with liquid helium which is confined to an annular cylinder surrounding an inner space for the filter. In a modified version of the filter circuit, resonant sections L 1 , L 2 , L 3 , L 4  spaced by capacitive gaps S 1 , S 2 , S 3 , S 4 , Fig. 2, are used. The line is arranged in a rectangular U-configuration so that the input and output are at the same end of the filter assembly.
Patent GB-944190-A (GB)
Title: A barbecue
IPC: F24C3/14
Filed: 1962-02-28
Abstract: 944,190. Barbecues. I. MARCOVITCH, and J. MARCOVITCH. Feb. 28, 1962 [March 1, 1960], No. 7852/62. Heading A4D. In a barbecue device a gas, e.g. liquefied petroleum, from a container 10 feeds a flame between an insulation plate 26 of a material which preferably incandesces, e.g. vermiculite asbestos, magnesite bonded, and a radiation plate 28, e.g. of metal or refractory material, the plate being surmounted by a grid 54. The radiation plate 28 has a moat-like trough 30 with fat escape holes 32 and there may be provided a reflecting interior cover 58, Fig. 3 (not shown).
Patent GB-1197553-A (GB)
Title: An Electronic Proximity Detector
Inventor: GERVAIS CHRISTIAN
IPC: H03K17/95
Filed: 1969-02-13
Abstract: 1,197,553. Proximity detectors. COMPAGNIE ELECTRO-MECANIQUE. Feb. 13, 1969 [Feb. 16, 1968], No.7865/69. Heading G1N. In apparatus for detecting the proximity of a magnetic element, a Maxwell bridge circuit is energized by an oscillator E with a stabilized power supply F, the bridge output, upon proximity of a magnetic element to the bridge inductance, being applied to a demodulator G, a pre-amplifier H, and an amplifier K to energize a load L, e. g. a relay. The apparatus in such that upon approach of a non-magnetic metallic element, the element is either effectively screened or "transparent" depending on the resistivity of the element. The arm CB of the bridge is divided into two resistors, the one inside the detector T may be made of one or more refractory materials, for example, platinum and have a positive and constant or quasi-constant temperature co-efficient, and the one outside the detector T has a zero temperature co-efficient to provide temperature compensation. Detector T may be connected by a long lead to the rest of the apparatus.
Patent GB-197132-A (GB)
Title: Improvements in or connected with walking sticks and the like
IPC: A45B5/00
Filed: 1922-03-17
Abstract: 197,132. Brown, B. March 17, 1922. No Patent granted (Sealing fee not paid). Convertible into tables.-A table is formed by pulling out ribs c residing in a cavity a of a walking-stick, and opening out the ribs horizontally so that they engage. in slots g of a ring c. Fabric d forming the table top is attached to the ribs, which are pivoted to a plunger b. Upward movement of the plunger is limited by lugs f on the ring e. Plates j pivoted to the lower end of the stick can be turned down so that the stick can be held upright by the user placing his feet upon these, plates. The cavity is normally closed by a handle h, and advertisements may be printed upon the table.
Patent GB-622541-A (GB)
Title: An improved construction of milking machine pulsator
IPC: A01J5/10
Filed: 1947-03-22
Abstract: 622,541. Cow milkers. FARM EQUIPMENT CO.. Ltd.. and HUNWICK, L. W. March 22, 1947, No. 7906. [Class 84] A pulsator for a milking-machine comprises a circular fixed block A having formed on the flat upper surface concentric with a tubular member B, projecting upwardly from the block centre, a groove D and a port G arranged outside the groove and connected to the side of the block by a passage A. The tubular member B is connected at its outer end to a vacuum sphere and at its inner end to a groove by a plugged passage E. On this upper surface a valve member J rotates about the tubular member and has formed in its lower surface two separate grooves M, N arranged in the same circumferential line which is coincident with the port G in the fixed block A. One of these two grooves N is formed with a lateral extension n which overlaps the groove D in the fixed block while the other groove is connected to the atmosphere so that as the valve member revolves the port G is alternately subjected to vacuum and atmospheric pressure. In the example shown, two diametrically opposite ports G are disclosed, each being connected by a passageway to the side of the block.
Patent GB-1516077-A (GB)
Title: Powder coating compositions
IPC: C09D163/00
Filed: 1977-02-24
Abstract: 1516077 Powder coating composition HOECHST AG 24 Feb 1977 [6 March 1976] 7930/77 Heading C3B A powder coating composition comprises as binder: (A) an epoxy resin; (B) as hardener, a polyester containing COOH groups and/or a COOH - containing (meth)acrylate ester copolymer; and (C) from 0À05-5% by wt. of II of a accelerator selected from in which R is H or C1-4 alkyl; R<1> is H or NO2; R<2> is H, C1-4 alkyl, C2-4 alkenyl or phenyl; R3 is H or C1-7 alkyl; R<4> is C1-12 alkyl or phenyl; R<5> is H, aryl or C1-6 alkyl; and X is H, vinyl or C1-4 alkyl. I may be pyrazole or a 3,5-dialkylpyrazole. II may be pyrazol-5-one or a 3- alkylpyrazol-5-one. III may be imidazole. IV may be 2-thiono-hexahydro-1,3,5-triazine or a derivative thereof substituted in the 4-, 5- or 6-position. V may be 2-thiono-1,2,3,6-tetrahydropyrimidine or a 4- or 6-substituent thereof. VI may be 2-thiono-4-oxo-hexahydropyrimidine optionally substituted in the 6- position. (A) may be a diglycidyl ester of bisphenol A having an epoxide equivalent of 500-1000. (B) may be a polyester of terephthalic acid and a diol. The wt. ratio (A) : (B) may be 80 : 20 to 20 : 80. Both (A) and (B) may have melting points of 50-150 C. The composition may contain pigments, fillers and other conventional adjuvants and may have a particle size of 30-200 Ám.
Patent GB-636304-A (GB)
Title: Vehicle transmission means
IPC: B60K17/22
Filed: 1948-03-17
Abstract: 636,304. Universal joints. SINGER MOTORS, Ltd., SHORTER, L. J., HARDY, SPICER & CO., Ltd., and DANIELL, J. A. March 17, 1948, No 7953. [Class 80 (ii)] The splined slip-joint of the front universal joint 13 of a motor-vehicle propeller shaft is arranged on the driving, or gear-box side so as to be lubricated from the gear-box, and comprises an internally splined driving sleeve 17 which slides axially on the splined gear-box tail shaft 18 and in a supporting needle-bearing 24 housed in an extension 23 of the main gearcasing 21. The sleeve 17 has disc or cylindrical outer closure cap 26, either provided with a breather-hole 27 or a return groove and radial drilling are provided to communicate the endspace with the inner side of the oil-seal 25. The needle-rollers may bear on a hardened sleeve carried by the sleeve 17. The tail shaft 18 is long in comparison with its diameter so as to be torsionally flexible.
Patent GB-1048674-A (GB)
Title: Improvements in or relating to devices for positioning cartons or the like, prior tosealing, filling or other operation
IPC: B65B51/06
Filed: 1964-02-26
Abstract: 1,048,674. Filling and closing cartons. R. DE LA COUSSAYE. Feb. 26, 1964 [Feb. 27, 1963; Feb. 13, 1964 (2)], No. 8035/64. Heading B8C. Cartons and the like are centrally positioned for sealing, filling etc. by means of a pair of guides 4 which are arranged to be moved towards one another whilst maintaining symmetry about an intermediate plane, by means of systems of levers 5-10, operated by a foot pedal 11 and pivoted about at least one axis below the surface of a table 1 and parallel to the guides 4. In a modification, Figs. 3-5 (not shown) the spindle 9 which joins the two links 8 is coupled to the vertical part 10 of the foot pedal and is provided with a guide pulley 12 which engages vertical slide bars 14 and 15, thus constraining the spindle 9 to move in a vertical line of symmetry between the two guides 4. Alternatively in Figs. 6-7 (not shown) the levers are arranged in scissor form such that when the pedal 11 is depressed, an actuating unit, e.g. hydraulic jack or electric motor draws the lower ends of each pair of levers 20 together thereby also drawing the guides 4 together. Figs. 8-11 (not shown), illustrate devices which are mounted on the guides. These devices comprise spring-urged rollers for folding the flaps of the cartons and holding them in the closed position, 29 mounted on levers 31 pivoted to vertical B-members 26 adjustably fixed to the guides 4.
Patent GB-889043-A (GB)
Title: An air-cooled dynamo electric machine
Inventor: ERHART JIRI
IPC: H02K9/14
Filed: 1959-03-09
Abstract: 889,043. Cooling dynamo-electric machines. ZAVODY V. I. LENINA PLZEN, NARODNI PODNIK. March 9, 1959, No. 8057/59. Class 35. Built into an air-cooled dynamo-electric machine 1 is a double-sided propeller fan 2 whose axially inner and outer sets of blades respectively circulate the internal air and impel the external air of the machine, the fan being driven by a radially inner or outer rotor 3 of an auxiliary motor whose radially inner rotor or stator 4 has a central opening through which passes the shaft of the machine. The auxiliary motor may be a single-speed asynchronous motor.
Patent GB-120712-A (GB)
Title: Improvements in or relating to Anchors.
Inventor: FROGER LOUIS VICTOR WILLIAM
IPC: B63B21/29
Filed: 1918-05-15
Abstract: 120,712. Froger, L. V. W. Nov. 10, 1917, [Convention date]. Anchors.-A cylindrical, conical, or octahedral recessed block 1, star-shaped in cross-section, is attached to a ship by an endless chain. The chain passes through a snivel 23 on the shank 16, which is secured in a plug 3 in the centre of the block. Holes 5 in the plug allow air to escape from the recess 4 in the bottom of the plug. Hinged flaps 10 at the bottom of the recesses between the flukes turn upwards when the anchor is on the sea bottom.
Patent GB-526366-A (GB)
Title: Apparatus for releasing vehicle wheels from ruts or the like
IPC: B60B39/12
Filed: 1939-03-14
Abstract: 526,366. Temporary roads. KOSS, F. March 14, 1939, No. 8184. [Class 107] [Also in Groups XXXI and XXXII] Apparatus for releasing vehicle wheels from ruts, comprises a series of members a with channelled treads and diverging flanges, spaced by chains b at a distance apart approximately equal to their width measured in the direction of the run of the chains. In use the appliance is unwound from the drum f mounted under the protecting hood g and passed under the wheel so that the rear cord c can be secured to the hook d on the chassis. The member a initially in contact with the wheel has only one flange at the end remote from the hook d. When the vehicle is driven, the wheel compresses the members a into the soil to form sufficient of a track to enable it to be extricated.
Patent GB-582621-A (GB)
Title: Propellent explosives
IPC: C06B23/00
Filed: 1942-06-15
Abstract: 582,621. Propellent explosives. HALL, D. H. June 15, 1942, Nos. 8204/42 and 11405/43. [Class 9 (ii)] A liquid or plastic propellent explosive, which can be fed to a combustion chamber at a greater rate than the rate of burning, comprises a relatively non-volatile liquid explosive such as nitroglycerine, and an organic solid or liquid diluent of low volatility miscible therewith. The proportions of the two constituents are preferably such that the calorific value ofthe resulting propellant lies between 700 and 1050 cal. /gm. Examples are given of suitable proportions by weight of the constituents to suit the liquid explosive used. The following examples of constituents are given.-For liquid explosives ethylene glycoldinitrate, diethylene glycoldinitrate, or nitroisobutyl glycerol trinitrate ; for liquid diluents : nitrobenzene, o-nitroanisole, or nitroparaffins; and for solid diluents: diethyl diphenyl urea, diphenylamine or dibutyl phthalate.
Patent GB-539684-A (GB)
Title: Improvements in filtering materials
IPC: B01D39/14
Filed: 1940-05-08
Abstract: 539,684. Agglutenated fibres ; phenol-aldehyde compositions. GENERAL MOTORS CORPORATION. May 8, 1940, No. 8262. Convention date, June 24, 1939. [Class 2 (iii)] [Also in Group VIII] In making filtering-elements of mineral wool with a thermosetting phenol-aldehyde resin as binder the resin is sprayed on the wool in admixture with water or alcohol, definite quantities of the wool are then moulded to the required shape and the moulded elements are heated to dry them and cause them to set. To facilitate moulding, additional water is mixed with the wool either before or after it is sprayed.
Patent GB-1493194-A (GB)
Title: Registers for propagation of magnetic domains
IPC: G11C19/08
Filed: 1975-02-28
Abstract: 1493194 Magnetic domain registers TECSI 28 Feb 1975 [8 March 1974] 8492/75 Addition to 1382386 Heading H3B In a shift register according to the parent Specification having a soft sawtooth propagation channel 1 surrounded by magnetically hard material, together with a zig-zag conductor 3 and a central conductor 2 overlying the gaps between adjacent limbs of conductor 3, an additional hard magnetic layer is provided in the form of strips 6 parallel to the hard axis (i.e. the propagation direction) of the soft material and spaced from the channel. As shown, a glass (for Kerr readout), ceramic or metal substrate 4 has a soft layer 1<SP>1</SP> of 55/42/3 Ni/Co/P alloy and a hard layer 1" of 97/3 Co/P apertured to define the propagation channel 1, a polyimide insulating layer 5, electrolytically deposited copper central conductor 2 with the same hard layer material 6 over, under or sandwiched between conductor sections, further polyimide insulation 7 and zig-zag conductor 3. The hard strips 6 apply a permanent field of 2 oe anti-parallel to that of the hard layer 1<SP>11</SP> so as to assist in deleting the points of domains in the central zone of the channel 1 and to preserve, by attempting to enlarge, smaller domains in the teeth of the channel thereby increasing storage density.