baber/WOPTO huggingface dataset:
Patent GB-597199-A (GB)
Title: A process for the simultaneous generation of chlorine dioxide and nitrogen trichloride
IPC: C01B11/02
Filed: 1945-08-14
Abstract: Chlorine dioxide is generated simultaneously with nitrogen trichloride by contacting ammonium chlorate or a mixture of one or more chlorates with one or more ammonium compounds with gaseous hydrochloric acid in the presence of an inert diluent gas and at least a small amount of moisture, obtained, for example, by passing air through aqueous hydrochloric acid.  The mixture or ammonium chlorate may be deposited in a suitable carrier, e.g., vermiculite, rock wool or granulated glass wool.  Constituents specified include the chlorates of sodium, potassium and calcium, and ammonium chloride, sulphate and phosphate.ALSO:A mixture of chlorine dioxide and nitrogen trichloride, produced simultaneously (see Group III), is used for bleaching flour, a mixture in which the partial pressure of each bleaching agent is 5 mm. of mercury or less being specified.
Patent GB-651559-A (GB)
Title: Hydrocarbon synthesis
IPC: B01J23/94
Filed: 1948-08-09
Abstract: Carbon deposits are removed from spent hydrocarbon - synthesis catalyst, e.g. iron, cobalt, nickel, molybdenum, manganese, chromium, noble metals or their oxides, without affecting their state of oxidation, by reacting it in the fluidized state with an oxidizing gas, e.g. oxygen, air, steam or carbon dioxide, at 800-2000 DEG  F. and 0-100 atmospheres, and so adjusting the composition and quantity of the oxidizing gas with reference to the amount of catalyst and the carbonaceous deposit thereon to produce an atmosphere within the regeneration zone containing substantially no free oxygen and containing carbon dioxide and carbon monoxide in such amounts that the ratio of the partial pressure of CO2 to CO is equal to or less than the value given by the equation <FORM:0651559/III/1> where r is the CO2 : CO partial pressure ratio and t is the temperature in  DEG F., and the sum of the partial pressures of CO2 and CO is less than the value given by the equation <FORM:0651559/III/2> where S is the sum of the partial pressures, t=temperature in  DEG F and r has the value obtained from the first equation.  With oxygen as the oxidizing gas, the exothermic reaction is controlled by conventional cooling equipment or by withdrawing solids, cooling and returning them.  With carbon dioxide or steam, the endothermic reaction is controlled by conventional heating equipment or by the addition of controlled amounts of air or oxygen, if desired admixed with hydrocarbons, e.g. methane, or hydrogen.  The operation may be effected at higher pressures by the addition of an inert diluent, e.g. nitrogen.  Flue gas may be recycled to the oxidizing gas inlet and may be burnt in presence of the oxidizing gas prior to re-entry into the regenerator to convert the oxygen to carbon oxides or water vapour, the sensible heat thus produced serving to control the endothermic reaction in the regenerator, the exothermic reaction, in this case, being avoided.
Patent GB-486827-A (GB)
Title: Improved process for repatterning rubber tyres
IPC: B29D30/54
Filed: 1937-07-29
Abstract: Worn tyres are provided with a fresh pattern by inserting the tyre as a whole into a patterned mould without any additional material and applying heat and pressure to cause the raised parts of the mould to make indentations on the tyre tread.  A known type of tyre retreading apparatus may be used for carrying out the process, the tyre being mounted on an air bag and inserted in a steam heated mould.  The bag is inflated to a pressure of 100 lb. per sq. inch and the mould heated to about 295 DEG  F. for half an hour.  The mould pattern may have projections on it of a height of 1/4 " which form corresponding recesses in the tyre but of a depth of only 1/8 ".  Specification 246,448, [Class 87 (ii)], is referred to.
Patent GB-597376-A (GB)
Title: Improvements in filters
IPC: B01D25/00
Filed: 1945-08-17
Abstract: 597,376. Filters. BRIGGS, S. W. Aug. 17, 1945, No. 21045. Convention date, Aug. 12, 1944. [Class 46] A filter mass surrounds a tube fixed at each end to an impervious plate, and a third plate between one of the fixed plates and one end of the filter mass is slidable on the tube and is adapted to prevent byepassing of fluid upon shrinkage of the filter mass. As shown in Fig. 1, an oil filter which may consist of apertured discs 25 is mounted between plates 22, 23 fixed to a tube 17 which surrounds a perforated tube 6. The tube 17 has perforations 18 protected by a spring 19 and netting 21. The tube 6 is secured to a cover screw 9 which connects parts 1, 3 of the filter casing. A floating plate 28 provided with an oil seal 29 is pressed towards the filter mass 25 by springs 33 hooked to a collar 34 on the tube 17. The liquid to be filtered enters the casing through an inlet 4 and flows inwardly through the discs 25, filtered liquid being discharged through an outlet 5. If the filter gets clogged, a relief valve 11 opens, allowing the liquid to byepass the filter. In a modification, the springs 33 are omitted. In the arrangement shown in Fig. 3, the flow of oil through the filter is outwards, the oil seal 29A being on the outer periphery of the floating plate 28A, and slidably engaging a skirt 35 provided on the top plate 23A. The skirt may be connected by a perforated screen to the base-plate on which the filter mass is supported.
Patent GB-1304326-A (GB)
IPC: G01J1/16
Filed: 1971-04-19
Abstract: 1304326 A photo-meter for blood samples INSINÍÍRITOIMISTO DATEX OY 19 April 1971 [5 Feb 1970] 21070/71 Heading G1A A photo-meter, for measuring haemoglobin content in a blood sample B comprises a light source V L1 , a sample cell K and two light sensing semi-conductors VV 1 , VV 2  arranged so that one VV 1  receives light passing through the sample B and the other VV 2  receives light coming directly from the source V L . The light sensitive semiconductors are connected into two arms of a bridge circuit, as shown, which is coupled to an amplifier OV having an outlet connected to two transistor couplings T 1  and T 2 . Each transistor coupling energizes a respective signal lamp L 1  or L 2  depending on the sense in which the bridge network is out of balance and both lamps are extinguished when the bridge is balanced. A variable resistor R 1  with a calibrated indicator scale is used to balance the bridge, the indicator scale providing a direct numerical indication of the haemoglobin content of the blood sample.
Patent GB-672775-A (GB)
Title: Improvements in or relating to the production of shaped products from polymers and copolymers of acrylonitrile
IPC: D01D10/04
Filed: 1948-08-10
Abstract: <PICT:0672775/IV (a)/1> Shaped products, particularly filaments, are produced from a soluble thermoplastic product of polymerization of a polymerizable mass comprising mainly acrylonitrile by precipitating the polymerization product in approximately its desired shape from a water-coagulable solution thereof by contacting the latter with a coagulant which may be water or an alcohol/water mixture, the coagulant being at a temperature not exceeding +10 DEG  C. and preferably within the range - 15 DEG  C. to +10 DEG  C.  The molecules of the precipitated product, particularly in filament form, may be oriented by stretching, preferably to at least 100 per cent elongation in the presence of moisture and at a temperature from 70 DEG  C. to 110 DEG  C.  The polymerization product preferably has a molecular weight between 15,000 and 300,000 and comprises at least 85 per cent by weight of acrylonitrile, suitable co-monomers being vinyl acetate, propionate or butyrate, acrylic, methacrylic, or ethacrylic acid, methyl, ethyl, propyl or butyl acrylate or methacrylate, acrylamide, methacrylamide, N - methyl-, N-ethyl-, N-propyl- or N-butylacrylamides or methacrylamides, methacrylonitrile, ethacrylonitrile, the dimethyl, -ethyl, -propyl or -butyl esters of maleic, fumaric or citraconic acids or allyl or methallyl alcohols, acetates, laurates or cyanides.  The water-coagulable solution may be formed p  by dissolving the polymerization product in a concentrated aqueous solution of a water-soluble metal salt yielding highly hydrated ions such as a chloride, bromide, iodide, thiocyanate, perchlorate or nitrate.  The precipitated product may be impregnated with a humectant such as diethylene glycol, triethylene glycol, glycerol or diglycerol.  In preparing filaments by the process of the invention there may be utilized a spinning device comprising a coupling 4 in which is annularly spaced an electrically heated cartridge 5 provided with lead-in wires 6, the cartridge 5 being positioned so as to project into the cup of the spinnerette 3. Specification 673,738 is referred to.
Patent GB-772708-A (GB)
Title: Time-piece
IPC: G04B45/00
Filed: 1955-07-21
Abstract: 772,708. Watch stands. TRIEBOLD, E. July 21, 1955, No. 21146/55. Class 52 (5). [Also in Group XVIII] A watch 3, Fig. 1, mounted on two uprights 2 which extend from a base 1 has, in its caseband 4, Fig. 2, a slot 14 through which extends a pendulum member 13 fixed to an oscillating staff e.g. the pallet staff, of the movement.
Patent GB-477683-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02P1/44
Filed: 1937-07-30
Abstract: 477,683. Induction motors. BRITISH THOMSON-HOUSTON CO., Ltd. July 30, 1937, No. 21202. Convention date, July 31, 1936. [Class 35] A split-phase motor with main and auxiliary windings of different pole numbers has one supply terminal connected to both main windings and to both auxiliary windings either directly or through a phase-splitting device and the other supply terminal connected to the main and auxiliary windings of either pole number at will. In the form shown, the motor has main and auxiliary windings 12, 11 of one pole number and corresponding windings 14, 13 of another number and one pair of these is energized when switch 15 engages contacts 17, 18, 28 or 20, 21, 29. In each switch position, relay 25 has its winding in parallel with a starting winding and accordingly disconnects the second condenser 24 on reaching a predetermined speed. In another form, the condenser 16 only is used and is permanently in circuit. In another form, a centrifugal switch is provided to disconnect the condenser and auxiliary windings at a predetermined speed..
Patent GB-951240-A (GB)
Title: Improvements in or relating to textile machine rollers
IPC: D03D49/20
Filed: 1960-06-17
Abstract: 951,240. Rollers. J. THWAITES. June 17, 1960, No. 21298/60. Heading F2U. [Also in Division D1] A textile machine roller comprises a metal spindle 10 having two annular grooves 13, one adjacent to each end of the spindle, into which a coating 12 of resilient material enters to resist axial movement thereof, a series of projections 14 and/or recesses 15 disposed between the grooves 13 resisting rotation of the material on the spindle 10. The coating 12 is preferably of plasticized polyvinyl chloride. Specification 779,674 is referred to.
Patent GB-455812-A (GB)
Title: Improvements in electric arc heating torches in which hydrogen or the like is directed through the arc on to the work to be heated
IPC: B23K28/02
Filed: 1935-07-26
Abstract: 455,812. Screw-and-nut mechanism. EMBLETON, R., 103, Folly Lane, Swinton, Lancashire, and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd., 1, Kingsway, London. July 26, 1935, No. 21306. [Class 80 (iii)] [See also Groups XI and XXXV] Each electrode of an arc torch is provided with a unitary feeding mechanism comprising a manually operable member and a member which is power driven through reduction gearing and including a friction clutch which slips readily enough to permit the feeding by the manually operable member without the necessity of effecting separate release of the clutch. The electrode 33 is mounted on a block 30 adapted to slide on a guide 31 with which it makes frictional engagement due to spring 32. The block 30 is operated by a screwed feed-rod 10 surrounded by sleeves 11, 18. The sleeve 18 is carried in a fixed bearing 26 and carries a collar 20 for manual operation, lock nuts 24 and washers 25, a spring 23, a motor-driven bevel wheel 22, and a block 28 in a slot in which is mounted a split nut 14 engaging the feed rod 10. The friction clutch constituted by the spring-pressed bevel-wheel 22 and the collar 19 affords the requisite slip when the collar 20 is operated by hand. For rapid manual adjustment of the electrode the halves of the nut 14 may be disengaged against the action of springs 15,16 by a cam 13 mounted on the sleeve 11. A knob 12 is provided for this purpose.
Patent GB-811264-A (GB)
Title: Improved vehicle transmission brake
IPC: F16H63/48
Filed: 1957-07-05
Abstract: 811,264. Vehicle transmission brakes. GENERAL MOTORS CORPORATION. July 5, 1957 [Aug. 2, 1956], No. 21348/57. Class 103 (1). A vehicle transmission brake comprises a pivoted brake pawl element 14 movable to and from a brake engaged position, in which a tooth 16 lies in the path of movement of teeth 18 on a wheel 12 rotatable with the transmission, a cam comprising a first roller journalled on a carrier 28 and adapted to engage a surface on the pawl element, and a second roller, also journalled on the carrier 28 and adapted to support the carrier 28 against an abutment 30, the cam comprising the two rollers being movable to and from a position between the abutment 30 and the surface 31 on the pawl element 14. The brake is engaged or disengaged by movement of a lever 40 keyed to shaft 42 which when turned stresses torsionally a coil spring 48 and urges a fork member 44 clockwise, the carrier 28 being then moved to the right as the result of pin 54 being engaged in the U of the fork member 44.
Patent GB-586810-A (GB)
Title: A new or improved whisk or beater
IPC: A47J43/10
Filed: 1944-11-02
Abstract: 586,810. Mixing-appliances. MARGOLIS, W. Nov. 2, 1944, No. 21424. [Class 86] A whisk comprises a rotatable member consisting of two spaced discs 4a, 4b connected by a pair of spaced plates 4c, 4d disposed one on each side of the axis of rotation. The plates 4c, 4d converge and may be formed with flat inner surfaces and partially cylindrical outer surfaces as shown, or may be flat on both sides. The member is mounted on a wire handle having two parallel sides 1a, 1b, of which the former is bent to form an axle 3. The latter is threaded through the discs 4a, 4b and is hooked detachably into a loop 2 at the end of the side 1a: Holes may be provided in the discs 4a, 4b.
Patent GB-584412-A (GB)
Title: Bricks, blocks and the like
IPC: E04B2/02
Filed: 1944-11-02
Abstract: 584,412. Bricks. ALLEN, H. V. Nov. 2, 1944, No. 21441. [Class 87 (i)] A brick A is provided on two opposite faces with a series of cuts B, C at a right or other angle to each other and of sufficient depth to overlap or intersect.
Patent GB-722811-A (GB)
Title: Improvements relating to mounting electric heating elements
IPC: H05B3/06
Filed: 1951-09-13
Abstract: 722,811. Mounting electric heating elements. MABRO & CO., Ltd., and ISON, D. H. Dec. 12, 1952 [Sept. 13, 1951], No. 21554/51. Class 39 (3) An electric heating element which is adjustable in length, e.g. to fit electric fires of different sizes, comprises a fireclay tube F having at each end a metal end cap C having spring metal jaws 1 which engage a rod S which is movable axially of the tube F and on the screw-threaded outer ends of which are mounted terminals N. Brackets M enable the element to be secured to the fire, while screws D connect the resistance wire R to the caps C. Two modifications are described, In the first, the jaws 1 are positioned inside the caps C, and in the second, the jaws 1 are replaced bv a collar 12 having longitudinal slits 13, Fig. 5.
Patent GB-293587-A (GB)
Title: Improvements in aeroplane propellers
IPC: B64C11/44
Filed: 1927-08-16
Abstract: 293,587. Turnbull, W. R. Aug. 16, 1927. Variable-pitch propellers. - A variable-pitch propeller with an electric motor 13 having a shaft 17 at right angles to the main propeller axis and operating a worm gear 18, 19 contains a second worm gear 21, 22 the gear 22 being mounted on the shank of the blade 11. The shank has an inner ball race 12. The motor is connected to collector rings in an insulating disc 23 on the propeller boss. A switch 26 is incorporated which is under the control of the pilot, this control being also connected with the engine throttle.
Patent GB-1303596-A (GB)
IPC: G03B17/26
Filed: 1971-04-19
Abstract: 1303596 Cassettes UCENTIA PATENT - VERWALTUNGS GmbH 19 April 1971 [13 Feb 1970] 21571/71 Heading G2A A cassette comprises a frame 3 on which a film sheet 8 is positioned, the frame being rigidly connected at one end 6 to a collapsible cover such as bellows 2, so that when the bellows is in its extended position, Fig.1, it completely surrounds the frame, but in its collapsed position, Figs.3  and 4, the frame is exposed. As shown, the frame has a covering 7, which is light-transmissive and air-permeable, on which the film sheet 8 is placed. When the bellows is collapsed it fits into a cover 4, as best seen in Fig.3. In Fig. 5 (not shown) the cassette is used in conjunction with a photographic drawing machine into which it is pushed, the bellows being collapsed and the support frame 3 entering the machine. Fig. 6 (not shown) illustrates how the cassette is used to feed the film sheet into a processing apparatus, and in Fig. 9 (not shown) the cassette is loaded with a film sheet from a stack in a container. A telescopically collapsible cover may be used instead of a bellows.
Patent GB-1147227-A (GB)
Title: Separation nut
Inventor: BOCHMAN HARRY LOUIS
IPC: F16B31/00
Filed: 1966-05-16
Abstract: 1,147,227. Nuts. HI-SHEAR CORP. 16 May, 1966, No. 21637/66. Heading F2H. A separation nut comprises a plurality of, e.g. three, threaded segments 47 supported within a piston 32 by annular portions 48 and 49, each segment having cam surfaces 52 and 53 which abut cam surfaces 16 and 54 formed, respectively, on the nut housing 11 and a separator 55 engaged in an aperture 33 in the piston 32. The piston forms with the housing 11 a chamber 27 connectible to a source of fluid pressure, e.g. a powder cartridge 25. Movement of the piston to the left, causes the portions 48 and 49 to move into recesses 50 and 51 and allow the segments to be forced radially outwards by the separator 55. An ejector 62 expels a male member engaged by the nut. The segments 47 may be screw-threaded or formed with ring grooves.
Patent GB-170399-A (GB)
Title: Improvements in breech loading small arms
IPC: F41A3/58
Filed: 1920-07-20
Abstract: 170,399. Perkes, T. July 20, 1920. Breech actions, drop-down barrel.-A single barrelled gun is provided with a swinging or rotary locking bolt mounted between the tumbler and the breech and carrying the firing-pin, or pierced with an aperture to allow the firing-pin to pass. In the construction shown in Fig. 1, the locking-bolt 1 is pivoted on a transverse axis and is operated by a side lever 3. The firing- point 15 of the tumbler 11 passes through an aperture in the bolt. The tumbler is cocked by the bolt when the breech is unlocked. In the modification shown in Figs. 3 and 4, the bolt 1<a> is pivoted on a longitudinal axis, and the tumbler is cocked by a spring lifter. In another modification, Fig. 5, the bolt 1<b> rotates about a vertical axis.
Patent GB-1240233-A (GB)
Title: Method for the production of moulding compositions
IPC: C08L61/20
Filed: 1969-04-29
Abstract: 1,240,233. Granular aminoplast moulding compositions. H. RÍMMLER G.m.b.H. 29 April, 1969 [6 June, 1968], No. 21825/69. Heading C3R. Granular aminoplast moulding compositions are prepared by forming a dry homogeneous mixture of fillers, pigments and hardening agents in an intensive mixer, adding a lubricant to this mixture and transferring it when again homogeneous to a slowly rotating kneader, wherein it is impregnated with an aminoplast resin solution, and drying and grinding the product. The intensive mixer is one rotating at 500 r.p.m. or more, particularly with a propeller mixing element. The kneader may rotate at, e.g. 20-50 r.p.m. In Examples 5-7 mixtures of cellulose flour, with or without wood flour, TiO 2 , barytes, melamine and melamine phthalate are mixed intensively, Zu stearate is added and intensive mixing continued, then the mixture is kneaded with 50% aqueous UF, MF or melamine phenol formaldehyde resin under evaporation, and finally dried and ground.
Patent GB-245692-A (GB)
Title: Improvements in beet or the like cutters
IPC: B26D3/18
Filed: 1925-09-02
Abstract: 245,692. Olsen, A. Sept. 2, 1925. Cutting vegetables.-A cutter for beets or the like comprises two rotary drums 1 provided with knives 3 and connected by spur gearing 11, 13, 14, 12, so that they rotate in opposite directions, an adjustable member 7 of approximately triangu. lar cross-section being arranged to control the passage between the drums and so size the pieces of beet cut. The beets are fed to the drums through a hopper 5.
Patent GB-752869-A (GB)
Title: Improvements in or relating to apparatus for taking core samples from earth formations
IPC: E21B25/02
Filed: 1954-07-27
Abstract: 752,869. Earth-boring apparatus. LONGYEAR CO., E. J. July 27, 1954 [Aug. 14, 1953] No. 21919/54. Class 85 Apparatus for taking core samples from earth formations comprises an annular drill bit 14 secured to a rotatable drill stem 10, and a retractable core barrel assembly positioned within the stem. The upper part 44 of the barrel assembly is supported from the-stem by an annular shoulder 24 co-engaging with an annular shoulder 25 on the stem and is releasably locked to the stem to rotate with it by spring biased latches 55, which can be retracted by a sleeve 66 being moved upwards. The lower core-receiving part 20 of the assembly is rotatably supported from the upper part. The sleeve 66 is provided with a spear point 72. By-passes 50 are formed in the shoulder 24. A lost motion connection is provided in the grappling tool for releasing and withdrawing the core barrel assembly.
Patent GB-532715-A (GB)
Title: Improvements in electric motor control systems particularly adopted for tension control in strip rolling mills
IPC: B21B37/50
Filed: 1939-07-28
Abstract: 532,715. Electric control systems. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. July 28, 1939, No. 21933. Convention date, July 28, 1938. [Class 40 (i)] [Also in Groups XXXVII and XXXV] The tension of the material in a strip rolling mill controls the ratio of transformation of a transformer adapted to vary the output potential of a generator affecting the excitation of a motor, the speed of which is controlled to maintain the tension constant (see Group XXXV). A lever 24 carrying a roller which is adapted to deflect a strip 12 passing through rolls 14, 16 is subject to constant fluid pressure in a cylinder 32 and arranged on an increase in strip deflection to rotate a transformer winding 38 in relation to a winding 40 and decrease the ratio of transformation. The current circulating through a rectifier 48 and the field winding 58 of booster generator 60 is thus reduced and the generator voltage falls. With the booster voltage added to the voltage of mains A, B the excitation of the field winding 64 of the motor 20 will fall and the motor speed will increase to restore the strip deflection. Transformers 54, 56 inject voltages into the circuit of winding 58 in accordance with the rate of change of motor current and booster voltage respectively in the sense required to retard such changes. The variable ratio transformer may be of any kind ; the application of an auto-transformer and a transformer with a variable reluctance magnetic circuit are described.
Patent GB-796037-A (GB)
Title: Improvements in the manufacture of iron oxide pigments
Inventor: MICHEL LAURENT PHILIPPE
IPC: C01G49/06
Filed: 1956-07-17
Abstract: Finely divided ferric oxide of high purity suitable for use as pigment or as a filler for plastic compositions is obtained by dissolving iron in dilute hydrochloric acid, evaporating and spray-drying the ferrous chloride; chlorinating the ferrous chloride, and hydrolysing the ferric chloride vapour thus obtained at high temperatures.  The hydrogen chloride evolved is recovered and used in the initial stage of the process.  Specifications 695,276 and 707,389 are referred to.