baber/WOPTO huggingface dataset:
Patent GB-337628-A (GB)
Title: Improvements in centrifugal apparatus for clarifying liquids
IPC: B04B11/06
Filed: 1929-11-22
Abstract: 337,628. List, H. Nov. 22, 1929. Density separators.-A centrifugal separator drum 1 for clarifying liquids has a trap to prevent separated buoyant material from being discharged with the liquid. In the example shown the trap consists of two plates 7, 8 which partly overlap to form the annular discharge passage 11. The liquid for treatment enters the inlet 9, passes between the cover 2 and the distributing plate 10, and is subject to centrifugal treatment in the drum. The heavy material is thrown outwards to zone I, the light material is thrown to zone III, and only the purified liquid from zone II can pass through the discharge passage 11 to the outlet 12.
Patent GB-1223047-A (GB)
Title: Improvements in or relating to negative electrodes for rechargeable batteries particularly of the silver-cadmium type and to batteries containing such electrodes
IPC: H01M4/48
Filed: 1968-07-26
Abstract: 1,223,047. Negative electrode. GULTON INDUSTRIES Inc. 26 July, 1968 [27 July, 1967], No. 35847/68. Heading HlB. A negative electrode, particularly for use in rechargeable electrochemical batteries of the Ag-Cd type, is made by pressing on to a metal grid, preferably made of silver, under a pressure of at least 1 ton per square inch, a mixture containing as essential ingredients CdO and Cd(OH) 2  in a weight ratio of from 1: 1 to 3: 1 of CdO to Cd(OH) a . The mixture constitutes not less than 90% by weight of the negative electrode and may include 3 to 7% by weight of powdered Ni and/or Ag. Polyvinyl alcohol may be used as a binder. The grid may alternatively be made of nickel or iron amalgams.
Patent GB-425356-A (GB)
Title: Improvements in or relating to flexible abrasive articles or sheets and processes of making same
Filed: 1933-06-07
Abstract: 425,356. Flexible abrasive articles. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Minnesota Mining & Manufacturing Co. ; 791, Forest Street, St. Paul, Minnesota, U.S.A.) June 7, 1933, No. 35859/34. Divided out of 425,298. [Class 60] A flexible abrasive article, e.g. sand-paper, which is water insoluble and is adapted for liquid abrading operations, includes a backing of a flexible waterproof nature having an ingredient such as silica tending to increase adhesion to the operator's fingers in use. One or more back coatings may contain the ingredient. In an example, the sand-paper &c., is furnished with a back coating containing vegetable drying oils, bitumen, soap, isinglass, water and oleum spirits ; and an auxiliary coating comprising nitrocellulose, drying oil, ground silica, resin and plasticizer. The coatings allow limited penetration of liquid which enhances flexibility in use. Specifications 425,298, 425,350, and 425,355 are referred to.
Patent GB-487950-A (GB)
Title: Improvements in or relating to the manufacture of composite wires, rods or bars
IPC: B23K20/233
Filed: 1936-12-31
Abstract: 487,950. Making compound rods and wires. KAMPS, O. Dec. 31, 1936, No. 35864. [Classes 83 (ii) and 83 (iv)] Drawing. - Composite wires or rods of zinc or zinc alloy and a more malleable metal such as aluminium are produced by drawing a composite strip comprising one or more layers of zinc or zinc alloy and one or more layers of the more malleable metal, said layers being substantially flat or of substantially rectangular cross-section, and such that in the cross-section of the composite strip the zinc predominates. A composite strip is cut spirally from a plate comprising a thin aluminium layer 1 between zinc layers 2 by a rotary cutter. The strip is drawn in successive stages Fig. 5, Fig. 6, Fig. 7, and the circular form is further successively reduced in diameter, the zinc completely covering the aluminium core in the final form. In a modification, a strip comprises zinc 3 with two aluminium coatings 4 and is reduced in successive stages Fig. 12, Fig. 13, Fig. 14, and is further reduced to elliptical form and to circular form with the aluminium completely sheathing the zinc. The aluminium layer or layers are stated to facilitate the drawing of the zinc. The wire or rod produced may be heated to cause diffusion of the aluminium and zinc with a resultant hardening effect. Specification 488,022 is referred to.
Patent GB-1557423-A (GB)
Title: Cephalosporins
IPC: C07D307/54
Filed: 1977-08-26
Abstract: Cephalosporins of the formula I in which R<1> represents alkyl having 1 - 4 C atoms and n is 1, 2 or 3, and non-toxic, pharmaceutically utilisable salts and esters thereof are obtained by reaction of an appropriate cephalosporin, which carries an acetoxymethyl group in the 3-position of the ring system, with an appropriate mercaptotetrazole compound. In an alternative process, this reaction is carried out using a cephalosporin having a free amino group, this being appropriately acylated in a second step. The compounds can be used in pharmaceutical compositions for the control of bacterial infections, such as Haemophilus or Neisseria infections. <IMAGE>
Patent GB-1074663-A (GB)
Title: Improvements in polyolefin substrate coatings
IPC: B29C48/00
Filed: 1965-08-23
Abstract: 1,074,663. Laminates. NATIONAL DISTILLERS & CHEMICAL CORPORATION. Aug. 23, 1965 [Aug. 31, 1964], No. 36016/65. Heading B5N. A process for coating a previously uncoated substrate with a molten polyolefine web comprises melting a polyolefine, extruding it in web form from extrusion die 3, subjecting the web to a corona discharge across electrodes 7 and 8 in the presence of oxygen, ozone, ammonia and/or a halogen, applying the web to a substrate 15 in the nip of rollers 5 and 6 and cooling the resultant laminate. Specified polyolefines are polyethylene, polypropylene and copolymers of ethylene or propylene with butene, pentene or hexene. Specified substrates are kraft paper, paper, paper board, glassine, fibre board, regenerated cellulose, polyethylene terephthalate sheet, metal foil, cloth and glass. The gas may be diluted with nitrogen, helium or argon.
Patent GB-1510278-A (GB)
Title: Multicolour printing method
IPC: B41M1/14
Filed: 1976-09-01
Abstract: 1510278 Multicolour printing CHAMPION INTERNATIONAL CORP 1 Sept 1976 [3 Sept 1975] 36166/76 Heading B6C A method of printing a repetitive multicolour pattern on a web using a multi-station machine, e.g. a screen printer, wherein each colour is applied at more than one station comprises intermittently feeding the web through the machine in increments of a length equal to an integral number of repeat lengths of the pattern. Although it is possible to arrange the colours in any sequence, it is preferred that all stations printing the same colour are adjacent, so that for P printing stations printing n colours, the number of stations per colour is N = P/n, and successive increments D 1 , D 2  of the web are each arranged to be integral odd numbers of pattern repeats and D 1  + D 2  = 2N, preferably D 1 =D 2 =N.
Patent GB-820106-A (GB)
Title: Constant speed and feathering propeller
IPC: B64C11/38
Filed: 1957-11-20
Abstract: 820,106. Variable pitch propellers. HARTZELL PROPELLER Inc. Nov. 20, 1957 [Feb. 18, 1957, March 18, 1957], No. 36184/57. Class 114. An adjustable pitch propeller comprises a hub 14 with blade sockets formed with an inwardly facing abutment 30 about the mouth thereof, a blade 10 extending radially into each socket and having an outwardly extending flange provided (by an annular recess 24) about the inner end thereof, a split blade collar 26 mounted about the inner end of the blade so as to engage the flange, there being a plate 34 engaging the butt end of the blade and secured to the collar (by screws 27) to hold the collar in place, an anti-friction bearing 28 having its outer race fitted into the socket and engaging the abutment 30 and its inner race closely surrounding the split collar 26, and piston and cylinder means 68, 58 carried by the hub 14 and connected therein (via a tube 46, a shift yoke, and pin 38) with plates 34 for varying the pitch of the propeller from full feathered pitch to lower pitch position. A nut 48 on the plate 34 bears against a friction reducing element 50 resting on a shoulder 52 formed on the hub and provides means for preloading the bearing 28. Resilient means act on the piston 68 to increase the pitch of the blades, whilst off-centre weights 114 mounted on the blades are responsive to propeller speed for reducing pitch. Said resilient means may comprise a gas entrapped in the cylinder 58, or as in Fig. 2, may comprise springs 80, 82, 84. Hydraulic fluid in the tube 46 flows through a port 78 to act on piston 68 to reduce the pitch of the blades. Should the supply of hydraulic fluid fail, said resilient means will thrust the blades to a feathered position. The tube 46 carries a latch rod 86 having a shoulder 88 adapted to cooperate with a latch pin 90 which moves out at the speed of 500 r.p.m. of the propeller and under normal circumstances moves inwardly to engage shoulder 88 whenever the propeller is brought to a halt in a normal manner.
Patent GB-830711-A (GB)
Title: Means for countering hole-storage effect in crystal rectifiers
Inventor: STEVENS SYDNEY ARTHUR
IPC: H02M7/06
Filed: 1957-11-21
Abstract: 830,711. Rectifying. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Nov. 14, 1958 [Nov. 21, 1957], No. 36300/57. Addition to 817,254. Drawings to Specification. Class 38 (2). In a modification of the rectifying arrangement of the parent Specification the auxiliary rectifier or rectifiers are connected across the D.C. output terminals so poled that they are always on reverse voltage, and/or in series reversed pairs across the input A.C. terminals. In polyphase circuits there is at least one pair of auxiliary rectifiers per phase.
Patent GB-430889-A (GB)
Title: Improvements in or relating to internal combustion motors adapted to be operated by producer gas
IPC: F02M13/08
Filed: 1934-12-18
Abstract: 430,889. Starting ; gas-engine plant. TENNANT, W. J., 111, Hatton Garden, London.-(Aktiebolaget Graham - Stedts Gasgenerator ; 46, Jarlsgatan, Stockholm) Dec. 18, 1934, No. 36306. [Classes 7 (ii), 7 (iii), and 7 (v)] In engines operated with producer gas and provided with a carburetter for operation with liquid fuel, e.g. at starting, the mixture throttle of the carburetter serves as the air throttle when the liquid fuel is cut off. Fig. 1 shows an engine 1 supplied with air through a pipe 3 and producer gas through a pipe 4, throttle valves 9 and 5 on these pipes being connected together by a rod 7 and arms 6 and 8. A carburetter 10 is inserted in the air conduit for the use of liquid fuel, an air choke valve being fitted at 11. A rotary cut-off valve 12 is also provided for the producer gas. The ratio of gas to air may be made variable with alteration of the load by causing the displacement of the throttle 5 to be greater or smaller than that of the throttle 9 as the amount of opening of each is varied, either by an alteration of the leverage of the arm 6, or by arranging the arms 6 and 8 of different lengths, or so as to form different angles with the rod 7 in the closed position. In order to maintain a draught in the producer furnace when the gas-producer unit is to be started, a suction fan 14 is connected to the gas inlet pipe. Fig. 2 shows the plant comprising a gas producer 16, purifiers 17, 19, and cooler 18, the rotary valve 12 being arranged to cut off the inlet pipe 4 or to connect it either to the engine or to the suction fan 14. In another arrangement of plant, the valve 12 is arranged at the other side of the throttle 5, a branch pipe connecting the suction fan to the pipe 4 in front of the valve 12.
Patent GB-336850-A (GB)
Title: Improvements in means for enabling goods, such as parcels, to be delivered through doors, walls or the like of unattended premises
IPC: A47G29/28
Filed: 1929-11-27
Abstract: 336,850. Cooper, S. Nov. 27, 1929. Coin action, mechanical - connection; receiving devices for house doors and the like.-In a device for enabling parcels to be delivered through a door, wall, &c., of the kind comprising flaplike members pivotally attached to the door, &c., to lie flat against or substantially parallel with it, which flaps are moved to form a box-like structure behind an aperture in the door when a shutter covering the aperture is opened, and which collapse again when the shutter is closed, the shutter 17 is locked when closed by a detent 41, Fig. 6, pulled by a spring 43 to engage a projection on the shutter; and to release this detent a coin is inserted in a slot 45, where it is retained by a projection 51, and a button 48 is pushed in to move the coin and a thrust member 46, which latter moves and disengages the detent 41 from the shutter. The detent is held open by a trip 52 but is released by the action of a catch 58 hanging freely from the bottom flap as soon as that flap has been raised to the horizontal position. When the button is released the coin falls through a chute 49 to a receptacle. If the button is pressed when no coin is in the slot, the plunger merely passes through an opening 46<a> and does not operate the thrust member 46.
Patent GB-1115023-A (GB)
Title: Improvements in or relating to electrical resistance heating mats
Inventor: GODDEN THOMAS EDWARD
IPC: B64D15/12
Filed: 1964-09-05
Abstract: 1,115,023. Electric resistance heating. M. H. GODDEN Ltd. 31 Aug., 1965 [5 Sept., 1964] No. 36502/64. Heading H5H. An electric resistance heating mat 1, for aircraft de-icing systems comprises a plurality of continuously energized longitudinally and laterally extending " breaker " strips 4, 3 and areas 5, discontinuously energized, the strips and areas comprising electrical resistance wires woven into a textile fabric sheet as weft threads to form ribbon-like structures of concertina form. The mat comprises woven sections 2 each having seven heating elements of PTFE coated resistance wire woven into glass fibre fabric which is shaped and coated with a rubber solution to form semi-stiff sections. These are then bonded on to an aircraft surface 8 between layers 9, 10 of neoprene.
Patent GB-993017-A (GB)
Title: Means for mounting controls of a road vehicle
Inventor: GRIFFIN SIDNEY GEORGE
IPC: B62D1/16
Filed: 1961-10-13
Abstract: 993,017. Mounting motor vehicle controls. JOSEPH LUCAS (INDUSTRIES) Ltd. Oct. 9, 1962 [Oct. 13, 1961], No. 36767/61. Heading B7H. The light switches 11a, a dipper switch 11b, a direction indicator switch 11c, an overdrive switch 11d and a horn switch 13 are all mounted on a control panel 10 located within the dished steering wheel 8 of a vehicle. The control panel 10 is carried by a tube 2 mounted alongside the steering shaft 1 of the vehicle, the hub 7 of the steering wheel 8 being journalled on the tube 2 and connected to the steering shaft 1 by pinions 5, 6 or by a chain and sprocket wheels. Cables 12 from the switches extend through the tube 2 and both the tube and the steering shaft are enclosed by a housing 3. The tube 2 may be axially adjustable and a choke control mounted on the control panel 10 may operate through a Bowden cable extending through the tube.
Patent GB-1074875-A (GB)
Title: Improvements in or relating to the manufacture of transducer heads for magnetic recording and reproducing apparatus
IPC: G11B5/187
Filed: 1964-09-09
Abstract: 1,074,875. Transducer heads. L. G. SEBESTYEN, and P. F. VARADI. Aug. 9, 1965 [Sept. 9, 1964], No. 36929/64. Heading G5R. A method of manufacturing a transducer head for recording or reproducing high frequency signals in which a thin layer of non- magnetic binding material is applied to one or both of the end faces of the polepieces of the front and other gaps in the magnetic circuit of the head by transfer from a previously prepared transfer strip, the respective end faces then being held in position and heated to bind the material and the faces together. The transfer strip may comprise a backing layer of P.V.C. or polyethylene, a cast layer of glass, ceramic or like powder in a binder and an adhesive layer which assists transfer of the cast layer to the end face when this is brought into contact with the transfer strip. The cast layer may be formed of non magnetic powdered metal mixed with a flux.
Patent GB-435670-A (GB)
Title: Improvements in and relating to electro-dynamic sound reproducing devices
IPC: H04R7/12
Filed: 1934-12-24
Abstract: 435,670. Loud-speakers; diaphragms. HUGUENARD, E. A., 19, Rue Dupont de L'Eure, Paris. Dec. 24, 1934, No. 37013. Convention date, Sept. 4. [Class 40 (iv)] The moving coil 2 of a loudspeaker is connected to the smaller end of the reversed conical diaphragm 3 by a cylindrical or slightly tapered tube 6<a>. The diaphragm may be reinforced by an inner cone 8 and both cones may be perforated as at 9, 10. The tube 6<a> may be open at the outer end 7 or it may closed by a conical wall.
Patent GB-1394170-A (GB)
Title: Process for the preparation of alpha-aminoxy-carboxylic acids
IPC: C07C239/00
Filed: 1972-08-09
Abstract: 1394170 α - Aminoxy - carboxylic acids RIGHTER GEDEON VEGYESZETI GYAR RT 9 Aug 1972 [12 Aug 1971] 37065/72 Heading C2C Compounds NH 2 -O-CH(R)-COOH in which R is hydrogen, phenyl or a C 1-6  alkyl group optionally substituted by phenyl, alkylthio, benzylthio, hydroxy, benzyloxy, benzyoxyphenyl, benzyloxycarbonyl amino or benzyloxycarboxylamino and the salts thereof, are prepared by reacting an N-protected hydroxylamine derivative of formula in which X is benzyl, p-chlorobenzyl or t-butyl, with the optically active (where R is not hydrogen) or racemic form of Y-CH(R)-COOH, in an organic solvent or a mixture of an organic solvent and water and in the presence of a monovalent metal hydroxide and if desired resolving the obtained compound of formula X-O-CO-NH-O-CH(R)-COOH and subjecting this compound to acid treatment at approximately ambient temperature. Compounds prepared are those in which R is hydrogen, phenyl or C 1-6  alkyl optionally substituted by methylthio, benzylthio, hydroxy, benzyloxy, amino, p-benzyloxyphenyl and carbobenzyloxy.
Patent GB-1516372-A (GB)
Title: Process for the production of cellular foams
IPC: C08G18/10
Filed: 1975-09-10
Abstract: 1516372 Carbodiimide foams BASF WYANDOTTE CORP 10 Sept 1975 [29 Oct 1974] 37272/75 Heading C3R Carbodiimide foams which also contain urethane and isocyanurate groups are prepared by reacting an organic polyisocyanate and a flame-retardant arsenic or antimony or halogen and/or phosphorus-containing polyol in the presence of a carbodiimide catalyst and optionally a trimerization catalyst and/or a urethane catalyst. Alternatively the polyisocyanate and active-hydrogen-containing compound may be prereacted to form a prepolymer which is then condensed in the presence of the respective catalysts. Other active-hydrogen-containing compounds may be used in admixture with the flame-retardant compounds. In specific examples, 2,4-bis(diethylamino)-6-(N-methylethanolamino)-s-triazine is used as the carbodiimide catalyst and 1,3,5-tris-(3-dimethylaminopropyl)-s-hexahydrotriazine as the trimerization catalyst. The foams have improved flame-retardancy and reduced friability.
Patent GB-983020-A (GB)
Title: Improvements in wind operated toy pumping devices
IPC: F03D11/02
Filed: 1962-10-02
Abstract: 983,020. Windmills. M. A. HOLMES. Oct. 2, 1962, No. 37289/62. Heading A6S. [Also in Division F1] A toy windmill 12 on a portable base 1 drives a crank 16 through shafts 9, 15 and gears 13, 14 mounted in a gear-box 4 having transparent sides 5, 6. The crank 16 imparts reciprocating motion to a connecting rod 17 and piston 25 which draws liquid up pipe 19 from tank 22 and discharges it through outlet 26. The gear-box 4 is rotatable on a bearing 8 on a tripod 3 and carries a fan-tail 7 for bringing the windmill 12 into the wind. A splash platform 30 may be provided.
Patent GB-1150083-A (GB)
Title: Recoil-Free Weapon
IPC: F41A1/08
Filed: 1960-10-31
Abstract: 1,150,083. Recoilless weapons. DYNAMIT NOBEL A.G. 31 Oct., 1960 [31 Oct., 1959], No. 37405/60. Heading F3C. In a recoil-free rocket discharger the projectile is provided with a rear Laval nozzle which separates from the projectile upon firing and is then ejected from the discharger. The fastening between the nozzle and projectile is broken by the initial explosion and the ejection is effected by a manually operated lever on the discharger.
Patent GB-1467389-A (GB)
Title: Calaysts for treating sulphurous gases
IPC: B01J23/12
Filed: 1974-08-27
Abstract: 1467389 Claus catalyst RHONE PROGIL SA 27 Aug 1974 [30 Aug 1973] 37467/74 Heading B1E [Also in Division Cl] A catalyst for the Claus reaction has a specific surface area of at least 80 m<SP>2</SP>/g and comprises activated alumina and 1 to 20% wt (calculated as the oxides) of one or more compounds of yttrium or a lanthamide metal e.g. 'lanthanum, praseodymium, neodymium, samarium and gadolinium. The catalyst may also contain one or more compounds of Ti, Pb, Mo, Co, Ni, Fe and U. The catalyst may be formed by impregnation, coprecipitation or cogellation or by agglomerating a mixture of oxides or hydroxides of aluminium and oxides, hydroxides or other compounds of the lanthanide metals.
Patent GB-344820-A (GB)
Title: Improvements in pistons for internal combustion engines
IPC: F02F3/08
Filed: 1929-12-07
Abstract: 344,820. Pistons. BERSEY, F. T., HARDY, E. A., and SLATER, J. P., Laystall House, Ewer Street, Southwark, London, Dec. 7, 1929, No. 37583. [Class 122 (i).] In a piston of the type in which an aluminium &c. body is cast on to iron bearing-rings 2, 7, the band 2, which has packing-ring grooves 5, has an inwardly projecting key-piece 6 in line with each gudgeonpin boss, and a dove-tail or V-groove 4 ; and the ring 7 has flanges 12 with V-grooves 13. The ring 2 has also a downwardly projecting flange with a pocket 3. The rings may be formed with notches 8, Fig. 6.
Patent GB-1158744-A (GB)
Title: Pulling Over Mechanism
Inventor: KAMBORIAN JACOB SIMON
IPC: A43D21/02
Filed: 1968-02-23
Abstract: 1,158,744. Boots &c. J. S. KAMBORIAN. 23 Feb., 1968 [8 March, 1967], No. 37723/68. Divided out of 1,158,743. Heading A3B. The subject-matter of this Specification forms part of that described in Specification 1,158,743 but the claims are concerned with a pulling-over mechanism in which the side grippers can be moved lengthwise of the shoe by the operator to adjust the position of the upper on the last and in which the toe gripper can move transversely of the shoe as the upper is being repositioned.
Patent GB-1105270-A (GB)
Title: Method of submarine pipe laying
IPC: F16L1/16
Filed: 1965-09-06
Abstract: 1,105,270. Laying pipes. GUNTHER & SHIRLEY CO. 6 Sept., 1965 [21 Dec., 1964], No. 38059/65. Heading F2P. In laying underwater pipelines at least one pipe section 10 is secured on a beam 24 carried by a gantry 20 which is lowered to the bed 18 of a body of water, the pipe section then being aligned by jacks 36, 46 with a pipe section 16 previously laid on ballast material carried in hoppers on the gantry. The guiding of the pipe sections may be accomplished by a diveroperated control unit, or remote control equipment on the floating platform 28, i.e. by devices mounted on the pipes and transmitting signals to surface operators or by closed-circuit television.
Patent GB-1017587-A (GB)
Title: Improvements in or relating to a method of reinforcing concrete or like material
IPC: E04C5/04
Filed: 1962-10-09
Abstract: 1,017,587. Metallic fabrics. W. HUFNAGL. Oct. 9, 1962 [Oct. 20,1961; June 22,1962], No. 38137/62. Heading D1K. [Also in Division E1  A reinforcing mat comprises metal bars secured together by applying a drop 1 of synthetic resin to some or all of their points of intersection or junction.
Patent GB-1298258-A (GB)
Title: Manufacture of polyamines
Inventor: HARPER DONALD
IPC: C08G73/02
Filed: 1970-08-07
Abstract: 1298258 Manufacture of methylene bridge poly arylamines IMPERIAL CHEMICAL INDUSTRIES Ltd 24 June 1971 [7 Aug 1970] 38140/70 Heading C2C A method of preparing methylene bridge polyarylamines by reacting formaldehyde and a primary arylamine in the presence of an acid catalyst is characterized by adding a major proportion of the formaldehyde to the arylamine and then the remainder of the formaldehyde substantially instantaneously. The corresponding polyisocyanates may be obtained by phosgenating the polyarylamines.