baber/WOPTO huggingface dataset:
Patent GB-445940-A (GB)
Title: Production of compositions from rubber and the like
IPC: C08C19/00
Filed: 1934-10-22
Abstract: Indiarubber or a like substance, e.g. balata, guttapercha, or polymerized isoprene, butadiene or chlorobutadiene is condensed with an arylamine with the aid of heat in the presence of an arylamine salt.  An example describes the production of a thermoplastic resinous material by heating polymerized chloroprene, aniline and aniline hydrochloride for 5 hours at a pressure of 100--200 lbs. per square inch.ALSO:Indiarubber or a like substance, e.g. balata, guttapercha, or polymerized isoprene, butadiene, or a chlorobutadiene, is condensed with an arylamine with the aid of heat in the presence of an arylamine salt as catalyst.  Vulcanized or unvulcanized rubber may be used; the arylamine may be used in excess, which is removed after the reaction by steam distillation or by washing with an acid; and the salt may be introduced as such or may be prepared in situ, e.g. by addition of the free acid or its ammonium salt to the arylaminerubber mixture.  The examples show that the process is carried out at 50-200 lbs. per square inch pressure (about 250 DEG  C.).  A solution of the product in toluene may be used as a lacquer or, to unite sheets of unvulcanized rubber to steel plates.  The resinous products may be dissolved in concentrated sulphuric acid, a flocculent precipitate being formed on pouring into water.  The product may be milled into rubber, and acts as a preserving agent.
Patent GB-319153-A (GB)
Title: Improvements in metal hand wheels
IPC: B62D1/04
Filed: 1928-10-19
Abstract: 319,153. Chance & Co., Ltd., J. R., and Chance, J. R. Oct. 19, 1928. Hand-wheels.-A hand-wheel, for example o steering-wheel for toy vehicles such as motor-cars, comprises a tubular rim a, butt-welded at a<2>, and spores c, d formed from a second tube, welded at f, g to the rim and flattened in the middle to form a hub e. The spokes are preferably upwardly inclined from the hub. A further similar tube may be superposed if four spokes are required. The steering-pillar (not shown) may be brazed into holes i in the hub and preferably also' into a bracket welded to the spokes. The rim and spokes may be of circular or elliptical or other non-circular cross-section, such as. according to the Provisional Specification, semi-circular or D-section.
Patent GB-409702-A (GB)
Title: A machine for grinding the valves of automobile engines and the like
IPC: B24B15/08
Filed: 1932-10-29
Abstract: 409,702. Grinding valves. JENKINS, D. G., Stouthall Garage, Reynoldston, near Swansea. Oct. 29, 1932, No. 30360. [Class 60.] A machine for grinding- in the valves of automobile engines &c. comprises a rotary crank b coupled by a rod c to an arm d secured to a shaft e. The shaft is supported in a bearing g and thrust on the shaft is taken by a ball f. In operation, the valve is engaged by a screwdriver or pin end attached to the shaft, and rotation of the crank b oscillates the shaft e ; the rod c has adjustable socket joints h, h<1> engaging the crank band the arm d. As shown, power is obtained from a combined electric motor a, but the apparatus may take the form of an attachment for electric drills &c.
Patent GB-891130-A (GB)
Title: A new or improved face shield
IPC: A45D44/12
Filed: 1958-09-23
Abstract: 891,130. Shields. CALLINAN GILES & CO. Ltd., and RIGLER, W. E. Sept. 23, 1959 [Sept. 23, 1958], No. 30374/58. Class 81 (2). A shield for protecting the face during treatment of the hair or protecting the hair during treatment of the face comprises a sheet 1 having an edge 2 curved to fit edgewise against the head, an opposite curved edge 3 and a handle 5. The surface of the sheet which is preferably transparent is curved from end to end. The whole of the sheet or the head contacting edge only is made of resilient material. The head contacting edge may be toothed and the opposite curved edge may include a catchment trough 4. A hole 8 and a slit (not shown) in the handle may receive a tress for tinting purposes. The handle may include a spray device for applying liquid to the head during use of the shield.
Patent GB-819926-A (GB)
Title: Improvements in and relating to devices for the dustfree discharging of refuse bins
IPC: B65F3/04
Filed: 1956-10-08
Abstract: 819,926. Refuse bins. OCHSNER & CIE A. G., A. Oct. 8, 1956 [Oct. 7, 1955], No. 30555/56. Class 26. A lug 12, Fig. 1, on the lid 8 of a refuse bin 4 is formed with an aperture 35, Fig. 4, through which may extend a tongue 34 on a part of a refuse vehicle (see Group XXX) which serves to open the lid of the bin as the bin is tipped. The bin also has a handle 31, Fig. 1, adapted to take in a hook 32 on a tipping cradle 5, 7.
Patent GB-732222-A (GB)
Title: Improvements in electrical speed responsive warning devices
Inventor: WARNE JAMES FREDERICK
IPC: G01P1/10
Filed: 1950-12-14
Abstract: 732,222. Speedometers. ELLIOTT BROS. (LONDON), Ltd. Dec. 14, 1951 [Dec. 14, 1950 No. 30574/50. Class 106 (3). [Also in Groups XXXI and XXXVIII] A speed-responsive warning device comprises an electric generator 1 adapted when driven by a moving part to generate a voltage proportional to the speed of the part, a gas-filled discharge tube, such as a neon lamp 3, across the electrodes of which the generated voltage is applied and which will conduct current when the voltage across its electrodes exceeds a predetermined value, and means adapted to operate a visible or audible signal and/or a stop mechanism when the tube 3 conducts. The signal or stop mechanism is in the circuit 6, 7 which is closed when the coil 5 is energized upon striking of the neon-lamp 3.
Patent GB-812256-A (GB)
Title: A carbamic acid ester having a sedative effect and methods for the preparation thereof
Inventor: STUEHMER WERNER
IPC: C07C271/06
Filed: 1957-09-30
Abstract: The invention comprises phenyl-isopropyl-methyl carbamate and the preparation thereof by the following methods: (1) reacting phenyl-isopropyl-carbinol with cyanic acid, e.g. by heating with alkali metal cyanates in neutral solvents such as methylene chloride in the presence of acids such as trichloracetic acid; (2) reacting the carbinol at low temperatures with urea chloride or at elevated temperatures with urea, with or without the addition of heavy metal salts, e.g. zinc acetate, or with urea salts; (3) reacting the carbinol with urethanes such as ethyl urethane, with or without the addition of reaction accelerators such as sodium alcoholate, by heating; or (4) converting the carbinol to the chlorocarbonic acid ester thereof by means of phosgene, e.g. in a solvent such as toluene, and then reacting this ester with ammonia.  Examples are given.
Patent GB-340349-A (GB)
Title: Improvements in or relating to swing bridges
IPC: E01D15/04
Filed: 1929-10-10
Abstract: 340,349. Swing bridges. DORMAN LONG & CO., Ltd. and PAIN, J. F., 55, Broad way, Westminster. Oct. 10, 1929, No. 30772. [Class 20 (i).] A balanced bilateral bridge is supported hydraulically during the time it is moved from its normal to open position and vice versa and has means to prevent its tilting. The bridge is carried by a bearing plate on the cylinder A of a hydraulic ram the piston B of which is fixed to a pedestal F to form the pivot about which the bridge swings. The bridge is balanced by rollers H running on a flange I at the base of the pedestal. The bridge may be raised by one or more hydraulic jacks so disposed that it is balanced and may then be swung about a central pivot, or it may be raised by any mechanical means and supported upon a hydraulic pivot about which it rotates. The bridge is rotated through gearing D<1>, D<2>, D<5> and a fixed segmental rack E from a shaft J carried by the bridge, the shaft of the pinion D<1> being automatically engaged with and disengaged from the shaft J as the bridge is raised and lowered.
Patent GB-1320953-A (GB)
Title: Preparation of granular seasoning
IPC: A23L13/30
Filed: 1970-06-25
Abstract: 1320953 Flavours TAKEDA YAKUHIN KOGYO KK 25 June 1970 [1 July 1969 (2)] 30796/70 Heading A2B A process for preparing a granular flavouring composition comprises extruding a hygroscopic powdery composition consisting of not less than 50% by wt. of a hydrolysate and/or extract of plant or animal proteinaceous material, in a molten state at a temperature not above 130‹C through a forming die of an extruder, granulating the extruded shaped solids, and coating the granules with an edible non-hygroscopic coating material. The granular product may have a 10-40 Tyler mesh size. The proteinaceous material may be wheat or corn gluten, casein, soya bean, cottonseed flour, meat, yeast or fish flour. The powdery composition may comprise 2-8% by wt. water or water and propylene glycol; it may comprise monosodium glutamate, disodium 5'-inosinate, 5'-guanylate and succinate, succinic acid, sugar, table salt, onion powder, garlic powder and lactose. The coating material may comprise one or more of sodium glycollate, polyacrylate, glutamate, hydroxyethylcellulose and alginate, calcium lactate and carbonate, starch phosphate, guar gum, gum arabic, methylcellulose, lactose and a non-hygroscopic table salt. The extruded material may be in sheet form and may be cooled, cut, cooled again and then crushed.
Patent GB-261924-A (GB)
Title: Improvements in pumps for vehicle tyres and the like
IPC: F04B33/00
Filed: 1925-12-07
Abstract: 261,924. Nicol, H. N. Dec. 7, 1925. Portable hand-pumps. - A tyre pump comprises a socket 6 on the barrel, adapted to receive a part of the tyre valve, a restricted air passage being formed in a plug 10 detachably screwed into the socket. The inner part of the socket is bored to a larger diameter than the outer part forming a shoulder between which and the plug is located a washer 12 of rubber &c. surrounding an axial hollow boss 13 on the plug.
Patent GB-284817-A (GB)
Title: Improvements in or relating to electrically operated switch, crossing gate and like machines for railway and other purposes
IPC: B61L7/06
Filed: 1926-12-06
Abstract: 284,817. British Power Railway Signal Co., Ltd., Glenn, S. L., and Pierce, E. E., Dec. 6, 1926. Driving-arrangements; terminals and accessories, arrangement on machines.-The armature shaft 2 of an electric motor, used for controlling the bolts of swing and lift bridges, &c., is arranged to be rotated manually, means being provided for preventing the completion of the motor circuit during such operation. The end 4 of the shaft 2 is squared to receive a handle or hand-crank, which cannot be applied until a lever 10 is moved out of position. This lever carries insulated contacts 9 which normally engage contacts 8 to complete the motor circuit, and is so arranged in the casing that the end cover 14 cannot be closed until the lever is in normal position, or if just out of that position will be forced home on closing the cover by a lug 15 thereon. The cover 14 is hinged at 17 and is locked at an eye 23 by a padlock engaging a strap 19 hinged at 20. The lever 10 may engage push-button circuit-closers, or may carry additional contacts which govern indication circuits. Specification 251,339 is referred to.
Patent GB-662623-A (GB)
Title: Frequency control of convertor sets or groups
IPC: B60L9/28
Filed: 1949-12-06
Abstract: 662,623. Control of A.C. motors. FORGES & ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. Dec. 6, 1949. [Dec. 7, 1948] No. 31257/49. Class 38 (iii). [Also in Group XXXV] A single to poly-phase converter whose output frequency is variable for feeding variable speed induction motors m, e.g. for traction, comprises a variable speed change-pole poly. phase wound induction motor M having a wound rotor a connected to controlling resistances Rh. and mechanically coupled to a frequency changer having a polyphase stator s, a main polyphase wound rotor A for supplying the output frequency F2, and an intermediate D.C. excited rotor r for creating a rotary field. The stators of the motor and converter, which are shown as two-phase wound, are energised at one phase, d1 and P1 respectively, from a common supply U of frequency F1. The auxiliary rotor is brought up to synchronous speed by a suitable means such as an auxiliary motor, thus producing a polyphase voltage in the stator windings P1, P2, the quatrature winding P2 being then connected by a switch i to the corresponding motor winding d2 so that the motor may be started by means of the rheostat Rh. The output frequency feeding the motors m depends on the relative speeds of the converter rotor S and the synchronous field produced by the auxiliary rotor r. Various frequencies are obtained by causing the motor M to run at various speeds by means of its stator change-pole arrangement (not shown), by the reversing switch I, by the rotor controlling rheostat Rh, or by locking it substantially stationary by means of D.C. current applied to the stator winding from a supply E. The load motors m may be controlled by a reversing switch and may also have a further polechanging switch q to increase the speed range. Interruptions of the drive during connection changes can be prevented by having two converter sets or the converter may be driven by two motors M which may be connected in cascade to increase the number of available speeds. Specification 660,848 is referred to.
Patent GB-337577-A (GB)
Title: Manufacture of monoazo-dyestuffs
IPC: C09B29/30
Filed: 1929-10-15
Abstract: 337,577. Geigy Soc. Anon., J. R. Oct. 15, 1928, [Convention date]. Monazo dyes are made by combining a diazotized aryl. or aralkylether of o-aminophenol or of a substitution product thereof with an N- arylsulpro - 1 - amino-8-naphtholdisulphonic acid. They dye wool and silk in clear red shades fast to light and acid or alkaline fueling. In examples the following dyestuffs are specified. (1) o-aminodiphenylether # N-p-toluenesulpho H acid, (2) 4-chloro - 2 - aminophenylbenzylether # N-benzenesulpho H acid. Arylsulpho derivatives of K acid are also specified as coupling components and o-aminophenyl-o-, m- and p-tolylethers, oaminophenyl-o and p-chlorphenylethers, o-aminop-chlordiphenylether and o-aminophenyl-p-chlorbenzylether as diazo components Specification 22886/99 is refered to.
Patent GB-364707-A (GB)
Title: A haulage device
IPC: B66D3/02
Filed: 1930-10-18
Abstract: 364,707. Ground anchors. LAVANDEIRA, R., 170, San Martin Street, Galeria G³emes, Buenos Aires. Oct. 18, 1930, No. 31310. [Class 45.] In a portable haulage device for pulling vehicles out of the mud the hauling rope 3 is pulled by a drum mounted in a casing 1 and rotated step by step by an oscillatable hand lever 15a. The casing carries stays 4 anchored to the ground by pegs 21, which are formed with grooves 22 for extracting them by alternate rotation with a lever, and is formed with two sockets 27 before, and one socket 28 behind, to receive detachable legs 10, 13 fitting at their lower ends into similar sockets in spikes 11, 11a, which are provided with flanges 5 to limit their penetration into the ground. It is stated that the tensions in the rope 3 and stays 4 caused by beginning to haul on a vehicle produce a resultant force on the device which anchors it to the ground, after which the tension in the rope 3 increases and pulls the vehicle along.
Patent GB-341863-A (GB)
Title: Improvements in the cleaning of carbonaceous materials
IPC: B03B5/44
Filed: 1929-10-16
Abstract: In the recovery of separating liquid from carbonaceous material which has been subjected to gravity separation in an aqueous solution of specific gravity greater than 1, the surplus bath liquor is first removed from the separated materials by draining and then replaced by more dilute liquor which is finally displaced by a continuous flow of more dilute liquor or water, as described in Specifications 276,723 and 282,874, [both in Class 82 (ii), Washing granular &c.].  The draining of the floated material may be effected by use of the separating apparatus described in Specification 325,031 [Class 82 (ii), Washing granular &c.], or by use of a vibrating screen and the material may then be allowed to fall into a body of more dilute liquor at the bottom of the vertical tower in which the displacement takes place.
Patent GB-644770-A (GB)
Title: Improvements in or relating to electric cables
Inventor: FROST JOHN THOMAS
IPC: H01B7/04
Filed: 1948-12-06
Abstract: 644,770. Cables. LIVERPOOL ELECTRIC CABLE CO., Ltd. Dec. 6, 1948, No. 31458. [Class 36] An electric cable is provided with a flexible screen which comprises a cracore c of conducting rubber in which the insulated conductors a, bare laid, a sheath e of conducting rubber enclosing the cracore and conductors, and flexible conductors d embedded between the core c and.sheath e and located in the spaces between the power conductors. The conductors d, which may be of circular or ribbon form, may lie on the surface of the core c and be embedded in the sheath e, or they may be embedded both in the core c and the sheath e. Specifications 526,895 and 641,922 are referred to.
Patent GB-686390-A (GB)
Title: Improvements in knitting machines, particularly straight bar knitting machines
IPC: D04B11/00
Filed: 1949-12-08
Abstract: 686,390. Knitting-machines. MELLOR BROMLEY & CO., Ltd., and SHORTLAND, A. Dec. 8, 1950. [Dec. 8, 1949] No. 31465/49. Class 74 (ii). In a knitting-machine, means is provided for varying the circumferential spacing apart of two followers displaceable by cam means to move a member to and fro. During splicing, the needles 1 are. located closer to the sinker body, to increase the loop length, by lobes 24a, 24b of a cam on the main cam shaft 3, acting on the quality shaft 19, through trucks 23a, 23b, the distance apart of which, circumferentially of the cam, can be varied, to vary the duration of and the interval between the periods of longer loop formation. The trucks 23a 23b are borne on shoes 27a, 27b slidable along dovetail- or T-section arcuate guides 26a, 26b on the truck lever 22, by means of quadrants of teeth 28a, 28b on the shoes and worms 29a, 29b on the truck lever 22, and geared together by gears 30a, 30b, one worm 29a being connected by a flexible shaft 31 with the splicing stop screw 13. The truck lever is connected to the quality shaft 19 through linkwork including a two-part connecting rod 40 which may be rendered ineffective by pattern-controlled relative rotation of one part 44 thereof to move the pins 46 on the other part from the position shown into the longitudinal arms 45<SP>1</SP> of diametrically disposed L-shaped slots 45. The trucks are adjustable towards and away from the cam shaft by adjustment of pivoted truckcradles 35b. The upper end of the truck lever works in a slot to eliminate lateral play. The normal rocking of the quality shaft is by a rod 20, actuated by a patterning device 21. The invention may be used to vary the dwell of a yard feeder (e.g. splicing-feeder) in feeding or non-feeding position in a circular machine ; or to vary the dwell or timing of the dwell of a movable cam (e.g. a switch cam or bolt cam) in one or other of two positions between which the cam is movable..
Patent GB-924453-A (GB)
Title: Improved lactam polymerisation process
Inventor: LEWIS DENNIS AUBREY
IPC: C08G69/20
Filed: 1960-09-13
Abstract: In the alkaline polymerization of at least one monomeric lactam having at least six carbon atoms in the ring, the lactam is maintained above its melting point and a compound of the formula <FORM:0924453/IV(a)/1> or a salt thereof is added to the lactam, either as such or dissolved in a suitable solvent, R and R1 being alkyl, alkenyl, aryl, alkaryl, aralkyl or cycloalkyl groups, R and R1 being linked together, if desired, to form a ring with C, Y and X, and Z is either an -NH- radical in which case X and Y can each be O, S or -NH-, or, alternatively, Z is O or S, in which case X can be O or S or -NH- and Y can be O or S.  Specified lactams are e -caprolactam, enantholactam, capryllactam, dodecanolactam, a -methyl caprolactam, b -d -dimethyl caprolactam and b -phenyl caprolactam. The reaction is effected in the presence of conventional alkali catalysts.  Many co-catalysts of the above formula are specified.  In the examples, e -caprolactam is polymerized in the presence of:-(1) sodium methoxide and dimethyl carbonate; (2) sodium methoxide and N-methyl-(ethyl carbamate); (3) sodium methoxide and dimethyl guanidine; (4) potassium t-butoxide and diethyl carbonate; (5) potassium t-butoxide and methyl octyl carbonate; (6) lithium hydride and N-ethyl(ethyl carbamate); (7) sodium hydride and N-octyl-(ethyl carbamate); (8) potassium hydroxide and N-phenyl-(ethyl carbamate); (9) ethanolic sodium ethoxide and N-dodecyl-(ethyl carbamate); (10) sodium hydroxide and N-phenyl-(cyclohexyl carbamate); (11) sodium hydroxide and N-phenyl-(allyl carbamate); (12) lithium and diphenyl guanidine and (13) sodium and di-t-butyl carbonate.
Patent GB-814364-A (GB)
Title: Improvements in and relating to electrolytic etching
IPC: C25F3/14
Filed: 1955-11-04
Abstract: 814,364. Electrolytic etching; semi-conductor devices &c. PHILCO CORPORATION. Nov. 4, 1955 [Dec. 22, 1954], No. 31594/55. Drawings to Specification. Classes 37 and 41. A method of electrolytic etching comprises coating a body of material with a metal having an electrical conductivity greater than that of the body and directing a flow of etchant to impinge upon a localized region of the body while passing a current therethrough to remove the coating locally and etch the material so exposed. Typically the body is of semi-conductive material, e.g. N-type germanium or silicon, and is coated with a noble metal, preferably gold or platinum. Thus to form a surface barrier transistor, a wafer of N-type germanium may be electroplated with gold from a solution of auric chloride in ethylene glycol acidified with hydro. chloric acid, and is then electrolytically etched from opposite faces of the wafer with a solution of indium trichloride followed by plating indium contacts into the etched cavities by reversal of polarity of the applied potential, using the apparatus of Specification 805,291. In a similar manner using a single jet of electrolyte to form a single cavity in the wafer; a germanium diode may be formed.
Patent GB-1434033-A (GB)
Title: Thermistors method and equipment for forming a single cloud of radar reflecti
IPC: H01C7/04
Filed: 1972-07-06
Abstract: 1434033 Thermistors STANDARD TELEPHONES & CABLES Ltd 28 June 1973 [6 July 1972] 31673/72 Heading H1K A thermistor suitable for operation in the temperature range 100-600 C. comprises a mixture containing between 50 and 99% by weight of praseodymium oxide and a total of from 1 to 50% of one or more of the oxides of aluminium, zirconium, thorium, hafnium, zinc, cadmium, mercury and magnesium the mixture comprising at least 90% of the total weight of thermistor material. The inclusion of aluminium oxide has the effect of lowering the resistivity and resistance temperature coefficient of the mixture while addition of from 1 to 4% of indium or gallium oxide to the mixture has the opposite effect. Typical mixtures consist of 80 to 90% Pr 6 O 11  with 20 and 10% respectively ZrO 2 ; and 80% Pr 5 O 11  with 20% ZrO. The thermistors may be formed by ball milling the oxide, and mixing the ground oxides with a binder to form a creamy slurry which is applied to parallel platinum or platinum alloy wires to form beads which, after drying in air, are sintered at 1200-1500 C. for 1-24 hours and then coated with or encapsulated in glass. The resistance decreases as the sintering temperature and time are increased.
Patent GB-373933-A (GB)
Title: Improvements in or relating to meters for delivering measured quantities of liquids
IPC: G01F3/18
Filed: 1931-11-16
Abstract: 373,933. Liquid meters. WHEATLEY, A. R. and BECK & CO., Ltd., 130, Great Suffolk Street, Southwark, London. Nov. 16, 1931, No. 31711. [Class 69 (ii).] In a liquid-meter of the type comprising a piston-operated part-spherical valve swivelling on a part-spherical seating, the angular motion of the valve is limited by an abutment x, which is vertically adjustable to enable the length of piston stroke to be varied. The abutment x is toothed to engage with a pinion z on a spindle 1.