baber/WOPTO huggingface dataset:
Patent GB-340843-A (GB)
Title: Improvements in or relating to valves for footballs and other inflatable articles
IPC: F16K15/20
Filed: 1930-02-15
Abstract: 340,843. Inflating-valves for footballs &c. HAUBENSAK, W., 1, Grunmattstrasse, and WETTERWALD, W. A., 69, Stampfenbachstrasse, both in Zurich, Switzerland. Feb. 15, 1930, No. 5176. Convention date, Oct. 24, 1929. [Class 135.] A valve for footballs and other inflatable articles comprises an internally - projecting flexible tube 1 formed with the bladder 2 and an external flange 3, with a leather insert 6 for securing to the bladder cover 5. An internally-screwed metal sleeve 10, inserted in the tube 1 is formed with an inturned seating 8 against which a rubber tube valve 13 is forced by a screwed ball-ended tubular retaining member 11, as shown. A removable adapter 14 for the pump has a small tubular extension 15 which enters the bore of the retaining tube 11 on screwing in. A shrunk-on ring 19 secures the metal sleeve 10 in position.
Patent GB-1142576-A (GB)
Title: Improvements in or relating to stabilised d.c. supply systems
Inventor: HUNTER IAN
IPC: H02M3/04
Filed: 1967-02-03
Abstract: 1,142,576. Automatic voltage control. MARCONI CO. Ltd. Nov. 27, 1967 [Feb. 3, 1967], No. 5231/67. Heading G3R. A stabilized D. C. supply system comprises a switch 2, e.g. a transistor, connecting a supply source 1 to load terminals 5 by way of a series choke 4; a comparator 7 having a first input fed from the output side of the choke 4 and a second input fed from a reference source 8; an amplifier 11 connected to amplify and reverse the phase of A. C. ripple present at the output side of choke 4; a smoothing capacitor 66 connected between the output side of the choke 4 and the output of the amplifier 11; a circuit for superimposing voltage from the junction between 66 and 11 on the reference potential at the second input of the comparator; and a device 9, responsive to the output from comparator 7, for controlling the mark/space ratio of the switch 2 so as to stabilize the voltage at terminals 5. The system, in effect, comprises a known stabilizer 1, 2, 4, 5, 66, 7, 8, and 9 of the chopper type with an additional amplifier 11 responsive to the A. C. ripple in the output voltage, and the Specification explains how the provision of the amplifier 11 results in an improved performance, including a higher frequency response in the main feedback loop, of the system.
Patent GB-411076-A (GB)
Title: Petrol tap with locking device
IPC: B60R25/042
Filed: 1934-02-17
Abstract: 411,076. Locking petrol taps. GRIFFITHS, W., 92, Bedford Road, and GRIFFITHS, C., 14, Farnborough Avenue, both in Walthamstow, London. Feb. 17, 1934, No. 5273. [Class 135.] A petrol tap in the carburetter supply of a motor car is protected against unauthorized use by a combination lock. A push-rod c provided with a port f for register with a passage g in the petrol supply carries integral projections d, passing through a slot b<1> in a sleeve b integral with the casing and engaging the usual coded rings a, through slots in which the projections may pass when the rings are correctly situated. Specification 146,001, [Class 135], is referred to.
Patent GB-1221241-A (GB)
Title: Detergent compositions which contain a mildness additive
IPC: C11D3/32
Filed: 1968-02-01
Abstract: 1,221,241. Detergent composition. CINCINNATI MILLING MACHINE CO. 1 Feb., 1968 [1 Feb., 1967; 9 Jan., 1968], No. 5275/68. Heading C5D. A detergent composition causing reduced skin irritation comprises a mildness additive of formula Y-R-Y<SP>1</SP> wherein R is a divalent organic radical containing a chain of at least 15 atoms between the open valences, a majority of which are carbons, and a cyclic group of at least 5 carbons, and is (A) a hydrocarbon radical, (B) an ester radical of a cyclic dicarboxylic acid and a polyol, or (C) an amide radical of a cyclic dicarboxylic acid and a polyamine, and wherein Y and Y<SP>1</SP> are polar groups containing carbon, nitrogen, oxygen, phosphorus, sulphur, or combinations thereof, said additive or its salt being liquid or soluble or colloidally dispersible in aqueous media, the polar groups of the mildness additive being stable and compatible with those of the detergent in aqueous media, the weight ratio of said additive to detergent being 0À005-10. R may be a C 15-80  hydrocarbon radical, and may be derived from the polymerized ethylenically unsaturated C 12-26  fatty acids. R may be a polyester radical derived by the reaction of a polyoxyalkylene glycol containing 1-30 oxyalkylene units, said alkylene groups having from 2-4 carbons with a dimer of a C 12-26  fatty acid, benzene dicarboxylic acid, a dihydrophthalic acid, a tetrahydrophthalic acid, or a cyclohexane dicarboxylic acid. R may alternatively be an amide radical derived by the reaction of a dimer of a C 12-26  fatty acid, benzene dicarboxylic acid, a dihydrophthalic acid, a tetrahydrophthalic acid, or a cyclohexane dicarboxylic acid with an alkanolamine containing 2-4 carbons. The degree of polymerization of polyester or polyamide is 1-10. The polar groups Y, Y<SP>1</SP> may be hydroxyl, carboxyl, carboxyl salt, amino, substituted amino, amido, substituted amido, ester, sulphate, sulphonate, phosphate, phosphonate, sulphate salt, sulphonate salt, phosphate salt, or quaternary ammonium salt groups. 10-80% by weight of the composition may consist of builders and other adjuvants.
Patent GB-637732-A (GB)
Title: Improvements in the production of gamma benzene hexachloride
IPC: C07C17/02
Filed: 1947-02-24
Abstract: Gamma benzene hexachloride is obtained by the photo-chlorination of benzene fortified with normally precipitated benzene hexachloride, i.e. benzene hexachloride containing alpha and beta isomers, and substantially no gamma isomer, the precipitate obtained is filtered off and benzene hexachloride containing a high percentage of the gamma isomer is recovered from the filtrate.  The precipitated hexachloride may then be added to a further batch of benzene and the process repeated.  It is advantageous to employ blue filtered light and to add a small quantity, e.g. up to 10 per cent by weight, of chloroform.  In examples: (1) benzene is treated in sunlight with chlorine gas at below 35 DEG  C. until a weight increase of 20 per cent is obtained when after standing for twelve hours the precipitate is filtered off and benzene hexachloride containing a high percentage of the gamma isomer is recovered from the filtrate, the above precipitate is added to benzene containing 10 per cent of chloroform and the above chlorination process repeated with light filtered through a blue filter; in (2) thiophene free benzene with 7 1/2 per cent of chloroform is chlorinated with direct sunlight to obtain a 20 per cent weight increase when after standing overnight the precipitate is filtered off and added to a similar batch of thiophene free chloroform containing benzene and the chlorination process repeated at not above 35 DEG  C., the gamma isomer being recovered from the various mother liquors and the precipitated a - and b -isomers added to fresh batches of benzene.
Patent GB-1502016-A (GB)
Title: Disc brake
IPC: F16D55/226
Filed: 1975-02-07
Abstract: 1502016 Disc brakes ALFRED TEVES GmbH 7 Feb 1975 [22 Feb 1974] 5329/75 Heading F2E A disc brake caliper 16 is slidably mounted on a brake carrier 1 at positions 9, 10, 11, 12 spaced circumferentially and axially of a brake disc, the sliding surfaces 13, 34 and 15, 36 (Fig. 5, not shown) at one position 10 being disposed respectively tangentially to the disc and normal thereto and the surfaces 14, 35 (Fig. 4, not shown) being arranged at an angle to the other surfaces. The central leg of a spring (37) (Fig. 2, not shown) mounted at its ends in the caliper 16 urges the end of a single hydraulic actuating cylinder of the caliper upwards to urge the caliper surfaces upwards at the positions 11, 12 and downwards at the positions 9, 10, although alternatively the surfaces could be inversed and the spring would urge the actuator downwards. The contact surfaces may be ball-shaped or curved to make them less sensitive to corrosion. The directly actuated pad 6 is supported slidably in an opening 5 of the carrier 1 and the reaction actuated pad 21 is supported and located by projections 22, 23 and 27, 28 engaging an opening 24 and bores 25, 26 of the caliper.
Patent GB-803418-A (GB)
Title: Improvements in or relating to paint rollers
Inventor: MYERSCOUGH THOMAS LEO
IPC: B05C17/02
Filed: 1954-02-24
Abstract: <PICT:0803418/III/1> A paint roller comprises a sleeve A of polyurethane or other synthetic foam material mounted on a tubular core B which is rotatable on a spindle D with which is associated a handle, the core B comprising a rigid tube of diameter a little greater than the diameter of the spindle D, the ends of the core B being spigotally engaged by end discs C abutting the sleeve A and freely rotatable on the spindle D.  The discs C have hubs c1 which engage the tube B, and a wire clip E engaging a circumferential groove d1 in the spindle D co-operates with a shoulder d2 on the spindle D in locating the assembly on the spindle.
Patent GB-144359-A (GB)
Title: Improvements in the manufacture of porous refractory materials
IPC: C04B38/06
Filed: 1919-03-05
Abstract: 144,359. Denis, L. March 5, 1919. Refractory substances containing silica &c.-A refractory substance suitable for use in surface combustion is made by burning a mixture of pure rich refractory earth containing 70-80 per cent of sand, magnesia, a poor light earth containing over 80 per cent of sand, and sawdust. Suitable proportions are 30 parts rich earth, 30 parts magnesia, 25 parts poor earth, and 5 parts of sawdust. The product is heated to at least the temperature it will be subjected to in use.
Patent GB-744161-A (GB)
Title: Improvements in or relating to electronic memory devices
Inventor: BAREFORD CHRISTOPHER FREDERIC
IPC: G11C27/02
Filed: 1951-03-06
Abstract: 744,161. Pulse memory circuits. MULLARD RADIO VALVE CO., Ltd. March 6, 1952 [March 6, 1951], No. 5472/51. Class 40 (6). In a memory device for repetitive phenomena an alternating potential is applied to one plate of a capacitor, the other plate being held at a reference potential by a clamping circuit until the clamp is released by a signal derived from an input pulse, the capacitor retaining its charge until a corresponding potential is reached during the next working stroke of the alternating potential. The alternating potential may be a negative going sawtooth, Fig. 3 (a) fed from time-base 2, Fig. 1, to a capacitor 1 having its right side held at earth by tubes V1, V2 conducting so that the capacitor charges negatively during the working stroke. The recurring phenomenon produces a pulse, Fig. 3 (b), which is converted by trigger pair 9 into a negative step, Fig. 3 (c), which cuts off the tube V1, V2 to remove the clamp. The potential of lead 4, Fig. 3 (d), now falls with the sawtooth input to the end of the working stroke 1 and on rising during the return stroke cause normally cut-off tube V3 to conduct to reverse the state of pair V3, V4. During the next working stroke, if potentiometer 8 is correctly adjusted, the potential of lead 4 falls sufficiently for the pair V3, V4 to restore. The fall in anode potential causes the trigger pair 9 to restore thereby re-operating the clamp, Fig. 3 (c), (d), so that lead 4 is again held at earth.- The next pulse opens the clamp to reset the charge in the capacitor 1. The negative-going waveform at the anode of tube V4 may be employed to operate an indicator. The device may be employed in systems where a phenomenon occurs at approximately the same time during an interval, although the intervals are not necessarily regularly spaced. Specification 727,134, [Group XL (b)], is referred to.
Patent GB-665376-A (GB)
Title: Catalytic dehydrogenation of alcohols
IPC: B01J37/04
Filed: 1949-03-01
Abstract: The dehydrogenation of secondary alcohols to ketones is effected by passing the alcohol over a catalyst comprising an oxide of Mg, Zn or Be and from 6 to 12 per cent of an oxide of Zr, Ce or Th based on the total weight of the mixture.  The catalyst may also contain silica, ferric oxide or alumina and may be supported.  The alcohol is passed over the catalyst at a temperature of 400-1000 DEG  F., at a pressure of 1-2 atmospheres and at a rate of 0.5 to 10 volumes of liquid alcohol per volume of catalyst per hour.  Specification 337,566, [Class 2 (iii)], is referred to.ALSO:A catalyst for the dehydrogenation of alcohols (see Group IVb) comprises a mixture of an oxide of magnesium, zinc or beryllium and from 6 to 12 per cent of an oxide of zirconium, cerium or thorium based on the total weight of the mixture.  The oxide of zirconium, cerium or thorium may also contain from 6 to 10 per cent by weight of silica, ferric oxide or alumina.  The catalyst may be supported on, for example, pumice, brass or steel turnings, and may be prepared by mixing the oxides in powder form, adding water to make a slurry, coating the slurry on the carrier and drying at about 80 DEG C.  Specification 337,566, [Class 1(i)], is referred to.
Patent GB-1113319-A (GB)
Title: Bacterial insecticide for killing flies
IPC: C12P1/04
Filed: 1967-02-06
Abstract: Viable spares of Bacillus moritai are cultured under conventional aerobic conditions, e.g. by inoculation into a bouillon culture medium of pH 7 DEG 0 and containing meat extract, peptone and sodium chloride; and may be obtained in the solid state by centrifuging and drying.  The viable spares are admixed with a conventional carrier to give a bacterial insecticide.ALSO:A bacterial insecticide for killing flies comprises viable spores of Bacillus moritai and a conventional carrier therefor. The insecticide may comprise the cultured substance containing the viable spores.  The bacterial insecticide is non-toxic to silkworms and may, therefore, be used in silkworm-growing countries.
Patent GB-1029041-A (GB)
Title: Mixed chromium complex azo dyestuffs
IPC: C09B45/16
Filed: 1964-02-11
Abstract: The invention comprises asymmetrical chromium mixed complex azo dyes of the general formula [I-Cr-II]-K+ wherein K denotes a cation, I is a divalent radical of a monoazo dyestuff linked to the chromium atom via two metal complexed groups standing in o,o1-position to an azo group and II is a divalent radical of a monoazo dyestuff differing from I and being of the general formula <FORM:1029041/C4-C5/1> wherein R represents a radical of the benzene series in which the -COO- group is in the o-position to the azo bridge, R1 is an alkyl radical and R2 represents an aromatic carbocyclic radical, which carries in both o-positions relative to the carbon atom carrying the -CONH- group a non-ionic substituent. Such complexes may be prepared by reacting a 1:1 complex of a monoazo dye corresponding to the radical I with a metal-free monoazo dye corresponding to the radical II.  In example (I) the dye obtained by diazotizing 5-chloro-2-amino-1,4-dimethoxybenzene and coupling with 41 - hydroxynaphtho - (21,11,4,5) - oxathiol S - dioxide is reacted with chromic chloride and the product reacted with the dye obtained by diazotizing 2 - aminobenzene - 1 - carboxylic acid-4-sulphonamide and coupling with acetoacetic acid -21,61-dimethyl anilide.  Many additional examples are furnished.  The dyes are suitable for colouring wool, silk, synthetic polyamide and urethane fibres.
Patent GB-397203-A (GB)
Title: Improvements in or relating to blasting cartridges
IPC: F42B3/06
Filed: 1932-02-24
Abstract: 397,203. Blasting-cartridges. SCOTT, A. C., Davington House, Faversham, Kent. Feb. 24, 1932, No. 5568. [Class 9 (i).] A blasting-cartridge is made to comprise in combination a pressure-resistant but rupturable container 11, in which is placed a quantity of non-explosive salt decomposable by heat so as to yield non-inflammable products of decomposition, together with a heating element 18 consisting of a self-combustible mixture inadequate by its own combustion to burst the container, and means to ignite the same so that the salt may be decomposed and the container ruptured. The container shown is of the kind known for holding compressed carbon dioxide and comprises a strong body provided with a shear disc 13 secured by a screw plug 14 formed with a central bore 15 and lateral outlets 16, a centralhole 17 serving for the insertion of a drift for the subsequent removal of the sheared part of the disc 13. The salt used is ammonium nitrate, to which ammonium or sodium chloride, ammonium oxalate, sodium bicarbonate. zinc sulphate, magnesium sulphate, or sodium sulphate may be added. 1 to 2 per cent of asbestos may be mixed with the ammonium nitrate to prevent binding and recrystallization. The heating element may be black powder or a mixture of potassium chlorate or perchlorate with a fuel for example cellulose acetate, and the ignition may be performed electrically.
Patent GB-1375784-A (GB)
IPC: E01F9/011
Filed: 1973-02-06
Abstract: 1375784 Boards and hoardings B GOW. SHALL 6 Feb 1973 [7 Feb 1972] 5612/72 Heading G5C [Also in Divisions E1 and F2] In a support for a street name plate or other display panel wherein cross-bars 8 carrying the panel 13 are secured by bolts 11 to a pair of posts 6, the posts 6 are of rectangular section and are embraced by pairs of lugs 19 upstanding from flat bars 8 to locate the posts and cross-bars at right angles. As shown the lugs 19 comprise tongues bent up from the bars 8. In a modification the pairs of lugs are formed by channel members welded to the bars. The posts shown comprise rectangular tubes having apertures  closed by caps 15 for access to the nuts of bolts 11. The panel 13 may be of compressed fibre board or metal and is secured to the cross-bars by adhesive and/or screws 14.
Patent GB-608430-A (GB)
Title: Improvements in or relating to the feeding of strip material
IPC: B21D53/64
Filed: 1946-02-23
Abstract: 608,430. Making razor blades. FAIREST, Ltd., M., and FAIREST, D. H. Feb. 23, 1946, No. 5666. [Classes 83 (ii)] and 83 (iv)] [Also in Group XVI] Punching.-In a machine for punching safety razor blades, the strip is fed from the machine by continuously rotated rolls and an eccentric roller. The strip 64 is fed through friction devices 61, 62 by feed rolls 47, 48 with stop mechanism 59, described in Specification 607,899, to a press with die 17 reciprocated from a crank 15. Continuously rotated feed rolls 20, 21 driven from the shaft 10 feed the strip to a winding drum 68. Between the punching machine 16 and the feed rolls 20, 21 the strip passes over a guide roller 33 and is deflected by an eccentric roller 32 on a balanced shaft 36. The varying loop made by the roller 32 allows for stoppage of the strip during punching.
Patent GB-792245-A (GB)
Title: Improvements in the inspection of photographic light-sensitive materials
Inventor: SELWYN EDWARD WILLIAM HERBERT
IPC: G03B21/32
Filed: 1955-02-25
Abstract: 792,245. Optical apparatus. KODAK. Ltd. Feb. 23, 1956 [Feb. 25, 1955], No. 5708/55. Class 97(1) A device for inspecting the surface of a photographic film for flaws comprises a roller over which'the film is passed, a radiation source to one side of the roller, a part-cylindrical mirror arranged parallel to and coaxial with the roller to reflect radiation on to the film where it contacts the roller, and a lens system for inspecting the film's surface. As shown, the film 1 passes over a roller 2. A source of illumination 4 is placed along the roller axis and an annular aperture 5 admits light to the underside of the curved reflector 3. The film is illuminated over a 90 degrees arc of the roller and is inspected by looking through the lens 7. The source 4 may be infra-red one and the lens 7 then focuses the image on a device (not shown) which renders the image visible.
Patent GB-650578-A (GB)
Title: Improved rams for power presses
IPC: B30B15/00
Filed: 1948-02-26
Abstract: 650,578. Mechanical presses. BORZYM, A. Feb. 26, 1948, No. 5727. [Class 87 (ii)] [Also in Group XXII] In a press having a vertically movable ram and a stationary bolster plate, a mid-portion of the ram which is counterbalanced by a spring may be swung to an inverted position for replacement &c. of the die. The ram head supported by columns 21 and reciprocated vertically by means described in Specification 647,082 comprises two blocks 30, 31 attached to the tops of columns 21 and a die-carrying mid-portion 35 pivoted thereto on pintles 32, 33, Fig. 5, fixed in the mid-portion by set screws 40, 41. The mid-portion may be swung to an inverted position by a worm 38 (not shown) which rotates a worm gear 39 keyed to the pintle 33, the weight of the mid-portion being counterbalanced by a spring and plunger unit 46 pivoted at 47 to the block 30 and to a crank 44 keyed to the pintle 32. The midportion is normally locked in the horizontal position by pins 54 which project into bushes 56 in the blocks when actuated by connecting rods 57, 58 pivotally affixed in grooves of a wrench-rotated wheel 60.
Patent GB-1425563-A (GB)
Title: Rigid polyurethanes
IPC: C08G18/42
Filed: 1972-02-08
Abstract: 1425563 Rigid polyurethanes LAPORTE INDUSTRIES Ltd 1 Feb 1973 [8 Feb 1972 (2) 11 March 1972 (2)] 5782/72 5783/72 11516/72 and 11515/72 Heading C3R Rigid polyurethanes are prepared by (a) reacting an #-caprolactone with a polyfunctional compound having 3 or more active hydrogen atoms per molecule to produce a liquid adduct of M.W. from 200 to 750 and (b) reacting the adduct with a liquid diisocyanate. A blowing agent may be included in the reaction mixture so as to produce a rigid foam. The reaction to produce the adduct may be carried out in the presence of an epoxide which is preferably ethylene oxide or propylene oxide. Suitably polyfunctional initiators are alcohols, aminoalcohols or. amines such as glycerol, trimethylol propane, trimethylol ethane, triethanolamine, diethanolamine, diethylene triamine, pentaerythritol, sucrose and dipentaerythritol. The adduct may also be formed in the presence of a difunctional compound, e.g. a diol. Catalysts for urethane formation may be included in the reaction mixture.
Patent GB-727093-A (GB)
Title: Valve device for connecting pipe lines and reduction valves to containers having therein fluid under pressure
IPC: F16K1/30
Filed: 1953-03-02
Abstract: 727,093. Valves. EICH, H. March 2, 1953 [March 1, 1952], No. 5792/53. Class 135. A valve device for connecting pipe lines, reduction valves &c. to fluid pressure containers such as steel gas cylinders comprises a housing 1 adapted to be screwed into the container by means of a conical threaded part 2 and having a bore 10, the outlet 8 of which is closed by a conical member 3 loosely mounted in a cap 11 when the cap is screwed on to the housing, the inlet 14 of the bore providing a seat for an auxiliary shut-off member such as the ball 4 adapted to be closed against a spring by the rush of fluid from the container when the cap 11 is loosened or removed. The cap 11 can be screwed on a hollow spigot 12 when not in use. A groove 9 across the thread 7 permits the escape of fluid once the cone 3 is unseated. The ball valve 4 which may be of stainless steel is carried in a removable extension 6 of the housing and the spring 5 acts on the ball through a flanged guide-ring 20. Leakage past the ball gradually equalizes the pressures on opposite sides of the ball after the connection to the pipe line or reducing valve is made good, whereupon the valve 4 re-opens. The housing 3 may be of bronze or an alloy known under the Registered Trade Mark " Delta."