baber/WOPTO huggingface dataset:
Patent GB-1062186-A (GB)
Title: An electric step motor with an active rotor
Inventor: STURMAN GRIGORY ISAEVITCH
IPC: H02K37/04
Filed: 1963-09-13
Abstract: 1,062,186. Step-by-step motors. RIZHSKY INSTITUTE' INZHENEROV GRAZHDANSKOVO VOZDUSHNOVO FLOTA. Sept. 13, 1963, No. 36232/63. Heading H2A. In an inductor type step-by-step motor in which the stator has toothed poles and the rotor is continuously toothed, the slots between the stator poles are wound with polyphase control windings (two-phase as described) and with a D.C. excitation winding. The excitation windings are in wider slots than the control windings. The control windings are switched to produce rotation.
Patent GB-1435205-A (GB)
Title: Machine for discharging granular pulverulent or powdery material
IPC: A01C15/04
Filed: 1973-07-31
Abstract: 1435205 Discharging granular material AMAZONEN-WERKE H DREYER 31 July 1973 [4 Aug 1972] 36308/73 Heading A1D Rotatable. spiked wheels 8 used to control the discharge of granular material from a hopper 2 are indexed at a variable speed by way of an output shaft 18 of a connected vehicle and a freewheel gear mechanism 21 comprising input and output shafts 22, 20, the latter of which drives the wheels 8 via a belt 19. Wheel speed is varied by adjusting a lever 33 to rotate a shaft 31 to alter the upward pressure of cam 32, Fig. 3, on the downwardly biassed arm 26 of a freewheel 25. This in turn alters the distance between a fixed roller 28, attached to the freewheel 25 via an arm 29, and the centre point of a double eccentric 24 which is attached to gear input shaft 22. The ensuing change in the roller stroke alters the speed of gear output shaft 20.
Patent GB-1324811-A (GB)
Title: Copolyester resins prepared from sulphophenoxy malomate  compounds
IPC: C07C67/00
Filed: 1970-07-28
Abstract: 1324811 Sulphophenoxymalonic acid derivatives FMC CORP 28 July 1970 [17 Oct 1969 15 May 1970] 36566/70 Heading C2C [Also in Division C3] The invention comprises sulphophenoxymalonic acids and their esters, of formula where R 1  and R 2  are each H or C 1  to C 4  alkyl, R 3  is hydrogen or C 1  to C 6  alkyl and M is a metal of valency n. They may be produced by reaction between a dimetallic salt of p-hydroxylbenzenesulphonic acid and a dialkyl ester of a 2-halo-2- alkyl malonate. The resulting diester is saponified by conventional procedures if the diacid is required. The dimetallic salt used as starting material is prepared by titration of aqueous phydroxybenzenesulphonic acid with, for example, an alkali or alkaline earth metal oxide or hydroxide and evaporation to dryness. The preparation of the sodium salt of diethyl 2- methyl-(p-sulphophenoxy)malonate is described in detail. The product may be used in the preparation of copolyesters (see Division C3).
Patent GB-852141-A (GB)
Title: Improvements in or relating to photographic antihalation and protective layers
Inventor: HART RENE MAURICE
IPC: G03C1/76
Filed: 1957-11-25
Abstract: Nitrated styrene-maleic anhydride copolymer described for use in making photographic protective layers is made by heating the monomers in toluene in the presence of azobisisobutyronitrile as initiator using highly purified styrene, filtering, washing the copolymer with hexane, nitrating at fairly low temperatures using fuming nitric acid in two preparations and mixed acid in a third, precipitating the product into water, washing it with further water and drying under vacuum.  The effect of the treatment with nitric acid is to nitrate the benzene nuclei and hydrolyse the maleic anhydride units in the copolymer.
Patent GB-1291897-A (GB)
Title: Thermoplastic resin composition having high transparency and high impact strength
IPC: C08L51/04
Filed: 1970-07-29
Abstract: 1291897 Graft polymer-polyorganosiloxane compositions MITSUBISHI RAYON CO Ltd and NITTO CHEMICAL INDUSTRY CO Ltd 29 July 1970 [6 Aug 1969 31 Oct 1969] 36642/70 Heading C3G  A transparent resin composition comprises (I) 97 to 99À9% by weight of a resin composed of (A) 10 parts by weight of a rubber which is polybutadiene or a styrene-butadiene copolymer containing at least 60% by weight of butadiene, which rubber has a weight average particle diameter of 0À20 to 0À35 micron, a particle diameter distribution in the range 0À05 to 1À5 micron and a degree of swelling of at least 10 and (B) 15 to 190 parts of a terpolymer obtained by polymerizing a mixture comprising 22 to 65% by weight of styrene, 15 to 68% of methyl methacrylate and 2 to 20% of acrylonitrile, at least 5 parts of said mixture being subjected to polymerization in the presence of said (A) component while being continuously or intermittently added to said (A) component, and (II) 0À01 to 3% of an oily polyorganosiloxane. The composition may also contain a vinyl chloride polymer. In the examples, a graft polymer of the monomers of terpolymer (B) on one of said rubbers (A) is blended with a terpolymer of said monomers (optional component), a polyorganosiloxane selected from polydimethyl siloxane, polydiethyl siloxane and polymethylphenyl siloxane, and 2,6-di-t-butylmethylphenol.
Patent GB-302247-A (GB)
Title: Improvements in and relating to speed controlling means for alternating current motors
IPC: B60L9/26
Filed: 1928-12-12
Abstract: 302,247. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). Dec. 12, 1927, [Convention date]. Systems for alternating-current motors, master-control systems.-The voltage impressed on a motor is varied by switching it on to consecutive tapping points of a transformer 1 - - 4, Fig. 2, and abrupt changes are avoided by interposing between the motor and the transformer a divided choking-coil a, c fitted with an iron core which is moved to and fro so as to concentrate the choking effects in each half alternately, associated with a change-over choking coil d with end-switches 9, 10. The invention is described in aplication to a duplicate four-motor railway-vehicle equipment shown diagrammatically in Fig. 3. The upper group of motors M<1> - - M<4> receives voltage consecutively from transformer tap-switches 1 - - 8 by way of a change-over choking-coil D1 and a divided movable-case choking coil S. A driver's master controller is arranged to control the closure of the tap-switches, for example by cam-actuated contactors, and also to control means for moving the choking-coil case in steps from each extreme position to the opposite position. The master control further controls electro-pneumatic on electromgnetic contactors 9, 10, 21, 22, 23, 24 in sequence with the tap and core changes. The lower group of motors is arranged and controlled like the upper, and either group is used as required.
Patent GB-325910-A (GB)
Title: Improvements in or relating to insecticides
IPC: A01N47/48
Filed: 1928-12-12
Abstract: 325,910. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Dec. 12, 1928. Insecticides.-The chief constituent is an aromatic compound containing one or more methoxy groups, and more than one thiocyanate group, each of the latter being attached to the nucleus through a CH2 group. The substance is used in aqueous emulsion, in colloidal form, as a dusting powder, or dissolved in organic solvents. In an example 1 part by weight of 1-methoxy- 2 :4 xylyldithiocyanate is dissolved in 4 parts of acetone to which a wetting agent soluble in acetone is added, and the solution diluted with water to 1,000 parts.
Patent GB-619642-A (GB)
Title: Improvements in or connected with rotary electric switches
IPC: H01H19/11
Filed: 1946-12-18
Abstract: 619,642. Multi-position snap-action switches. REVO ELECTRIC CO., Ltd., FELTON, A. E., and PRICE, F. H. Dec. 18, 1946, No. 37221. [Class 38 (v)] A four-position rotary switch for electric ovens has a contact operating spindle c having a star wheel d engaging cams j pivotally supported by trunnions j<1> on links k. The latter are pivoted on pins h and have hemispherical buttons k<3> engaging a coiled compression spring l. Actuation of the switch causes bodily displacement and rotation of the cams j as the star wheel d moves from one position to another.
Patent GB-1150384-A (GB)
Title: System for Operating the Windscreen Wipers of a Vehicle
Inventor: BROOKE PAUL
IPC: G01N27/04
Filed: 1966-08-19
Abstract: 1,150,384. Moisture sensors. DYCHURCH BUSINESS SERVICES Ltd. Nov.10, 1967 [ Aug. 19, 1966], No.37246/66. Heading G1N. [Also in Division H1] A moisture-sensitive transducer comprises a central rod electrode 1 Fig. 1 surrounded by a cylindrical electrode 2, separated by a nylon bush 3. The transducer is fed with a D. C. voltage and the current flowing between the electrodes, when moisture settles on the exposed end, is amplified to energize a relay when it reaches a predetermined value. The device is mounted on a car to energize the windscreen wipers when it rains, and to energize heater windings (not shown) in bush 3, to facilitate drying it.
Patent GB-781414-A (GB)
Title: 1,2-dichloroethane
IPC: C07C17/156
Filed: 1955-12-29
Abstract: 1:2-Dichloroethane is manufactured by subjecting ethylene to reaction with chlorine at an elevated temperature (preferably above 200 DEG C.) while mixed with hydrogen and in the presence of oxygen and a chlorination catalyst.  The amount of oxygen is preferably at least 1 per cent by volume of the gases in the reaction zone, and the amount of chlorine advantageously the molar equivalent of the amount of ethylene.  The mixture of ethylene and hydrogen may be obtained by the cracking of ethane, and a mixture containing chlorine and oxygen from hydrogen chloride by the Deacon process using excess of air (e.g. sufficient air to provide about 1/3 mol. of oxygen per mol. of hydrogen chloride).  The reaction time may be 0.4-0.8 second, the temperature 225-400 DEG  C. and the catalyst activated bauxite. Detailed examples are given.
Patent GB-1435879-A (GB)
Title: Contact pulley for belt sanding machines
IPC: B24B21/14
Filed: 1974-08-23
Abstract: 1435879 Sanding machines H STAHL [trading as S M MASCHINENFABRIK HERBERT STAHL] 23 Aug 1974 [24 Aug 1973] 37262/74 Heading B3D [Also in Division B5] A contact pulley for a belt sanding machine comprises a plurality of axially adjacently disposed layers of material of which at least one layer 41 consists of soft, resilient material clamped under pre-stress between two layers 42 of firmer material, whereby at rest said soft and firmer material layers have the same diameter, but said soft material swells radially beyond the diameter of the said firmer material layers 42 upon rotation of the pulley and also expands axially over the width of the periphery of the pulley to provide a flexible contact surface for a sanding belt. The soft material may be foam plastics or foam rubber; the firmer material may be textile material, cotton canvas, or aluminium. The soft material is compressed before being fixed to the firmer material. The layers are held together by textile threads 43, and they may be adhered together before machine sewing.
Patent GB-1390971-A (GB)
Title: Production of freeflowing caprolactam prills from a melt of  caprolactam
IPC: C07D201/02
Filed: 1972-08-10
Abstract: 1390971 Caprolactam prills BADISCHE ANILIN- & SODA-FABRIK AG 10 Aug 1972 [11 Aug 1971] 37337/72 Heading C2C Free-flowing caprolactam prills are produced by introducing molten caprolactam in the form of droplets in fine dispersion into a fluidized bed of preformed caprolactam prills which are fluidized with a cold inert gas. A portion of the solid caprolactam may be brought to a smaller particle size by grinding inside or outside the fluidized bed and this portion may be introduced as new nuclei into the fluidized bed. Caprolactam particles entrained with the off gas may be deposited above the fluidized bed and returned to the latter as new nuclei; the caprolactam prills in the fluidized bed suitably have a particle size of 0À5-3 mm. The inert gas preferably enters the bed at 0-50‹ C. and leaves at 10-68‹ C. and a gas speed (of 0À5-5 m./sec. is suitably maintained in the bed. The fluidized bed may contain from 50-600 kg./m.<SP>2</SP> of caprolactam prills and 1-5 kg. of melt per hour may be supplied per kg. of prills present in the fluidized bed.
Patent GB-888428-A (GB)
Title: Improvements in or relating to reserpine and its derivatives
Filed: 1958-04-11
Abstract: The invention comprises laevo-18b -acetoxy-17a  - methoxy - 16b  - methoxycarbonyl - 3 - oxo - 2,3 - seco - 20a  - yohimbane, dextro - 18b  - hydroxy - 17a  - methoxy - 16b  - methoxycarbonyl-3 - oxo - 2,3 - seco - 20a  - yohimbane, laevo - 18b  - (31,41,51 - trimethoxybenzoyloxy) - 17a  - methoxy-16b  - methoxycarbonyl - 3 - oxo - 2,3 - seco - 20a  - yohimbane and dextro - 18b  - (31,41,51 - trimethoxycinnamoyloxy) - 11,17a  - dimethoxy-16b  - methoxycarbonyl - 3 - oxo - 2,3 - seco - 20a  - yohimbane, together with processes for the preparation of (a) the 31,41,51 - trimethoxybenzoyl and 31,41,51-trimethoxy-cinnamoyl esters by esterification of the 18b -hydroxy compounds of formula I. <FORM:0888428/IV (b)/1> (R=H or MeO and R1=H), e.g. with the chloride, anhydride or mixed anhydride of 3,4,5-trimethoxy benzoic or cinnamic acid, (b) the 18b -hydroxy compounds of formula I by alkaline deacetylation of the 18-acetyl ester or by methanolysis of the corresponding 16,18-lactone, both processes being preferably effected with sodium methoxide in methanol.  The preparation of 18b  - (31,41,51 - trimethoxybenzoyloxy) - 11,17a  - dimethoxy - 3 - oxo - 16b  - methoxycarbonyl - 2,3 - seco - 20a  - yohimbane is disclaimed. Detailed examples are given. Specifications 888,409 and 888,427 also are referred to.
Patent GB-362174-A (GB)
Title: Improvements in or relating to apparatus for moulding thimbles and the like from plastic material
IPC: B28B13/02
Filed: 1930-12-16
Abstract: 362,174. Feeding conical articles in uniform position. BRAMMER, G., Thorney Edge, Bagnall, Stoke-on-Trent. Dec. 16, 1930, No. 37954. [Class 117.] Truncated conical lumps of clay placed in the tapered drum 1 fall through the holes 2 on to a shoot 3. A pair of fingers 4, 5 are operated alternatively by cams on to the shaft 6 to ensure delivery of the lumps in succession at definite intervals to the key-hole slot 3a. Lumps delivered with the larger end foremost fall directly through the slot when in register therewith, but lumps delivered with the smaller end foremost fall into the reduced part of the slot and overbalance before falling through, so that all travel down the second shoot 8 with the smaller end foremost. A second pair of fingers 4a, 5a regulate the delivery down the shoot 8. At the exit end of the shoot the lumps are gripped by movable fingers which transfer them to a mould.
Patent GB-1125838-A (GB)
Title: Improvements in or relating to an ass embly of ingot moulds of a multi-line continuous metal casting installation
IPC: B22D11/04
Filed: 1966-08-26
Abstract: 1,125,838. Continuous casting-machines. GOSUDARSTVENNY SOJUZNY INSTITUT POPROEKTIROVANIJU METALLURGICHESKIKH ZAVODOV. 26 Aug., 1966 [3 March, 1966], No. 38394/66. Heading B3F. In a multi-strand continuous casting installation each mould comprises a body 4 and a liner 5 with a water circulating space 8 therebetween, the moulds being mounted in a chassis I having water inlets and outlets enabling water to circulate into the space 8 and allowing individual moulds to be removed from the chassis, e.g. for inverting or replacement, without having to dismantle the chassis and water connections. The chassis is trunnion mounted 3 and the moulds bodies 4 may be made in two parts and clamped around the liner 5 (Fig. 3, not shown). In an alternative embodiment (Figs. 5-7, not shown) the mould has annular water chambers (22) and (25) mounted symmetrically on the body (18) so that on inversion one chamber can connect with an inlet manifold (21) of a chassis (16) and the other chamber can connect with an outlet manifold (26) after making change-over adjustments to a sleeve (27) and plugs (23) and (28). The mould axis may be curved.
Patent GB-1362863-A (GB)
Title: Method of and apparatus for transferring latent electrostatic images
IPC: G03G5/02
Filed: 1971-08-16
Abstract: 1362863 Electro-photography &c AUSTRALIA COMMONWEALTH OF 16 Aug1971 [17 Aug 1970] 38404/71 Heading G2H A charged image is developed with toner after transfer from the member on which it is formed to a receiver member consisting of two insulative layers, an image-receiving layer and a backing layer, the image-receiving layer having a lower dielectric constant than the backing layer. The charge image may be produced electro-photographically or by means of a writing stylus. The image-receiving layer may be of polyvinyl chloride, polyvinyl chloride acetate, cellulose acetate butyrate, polymethlmethacrylate, epoxy resin, polyethylene or silicone resin. The backing layer may be of melamine-formaldehyde, phenol-formaldehyde, styrene alkyd or moistened paper. The developed image may be transferred to a further member. In one form, Fig.3, the two layer member is a drum 22, the charge image being applied from a drum 21, developer being applied from a roll 27, the developed image being transferred to a web 33, and cleaning being effected at a station 37. In another form, Fig.4, the two layer member is a web 42, the charge being applied from a drum 40 and developer being applied from a roll 45.
Patent GB-899998-A (GB)
Title: Articulated vehicle
IPC: B60T8/18
Filed: 1958-11-28
Abstract: 899,998. Adjusting axle load of trailers. MERZ, H. Nov. 28, 1958 [Nov. 29, 1957], No. 38445/58. Class 108(2). [Also in Group XXXIV] The wheel loading of a trailer 3 is increased in accordance with the degree of braking effort. As shown, a brake actuating Cylinder 10 is connected to a fluid storage cylinder 9 via a control valve 8. The latter is connected at 22 to brake actuating means on the tractor vehicle. The cylinder 9 and 'brake cylinder 10 are also connected to a piston and cylinder device 5 acting between the tractor and the trailer. The control valve 12 operates to produce a predetermined pressure change in the cylinder 5 which is dependent on the pressure in the brake cylinder 10. In a modified construction (Fig. 3, not shown), the piston and cylinder device 5 is arranged to operate in tension and is thus disposed on the rearward side of the pivot 2. In this case the pressure in the device 5 is dependent on the pressure developed in brake cylinders associated with the front and rear wheels of the tractor vehicle.
Patent GB-371361-A (GB)
Title: Improvements in or relating to the manufacture of metal alloys
IPC: C22C5/04
Filed: 1930-12-20
Abstract: Alloys of platinum with one or both of the metals molybdenum and tungsten contain approximately 65-85 per cent of platinum. The Provisional Specification describes alloys containing 50-85 per cent of platinum.
Patent GB-1200655-A (GB)
Title: A clarifying vessel for liquids
IPC: C02F1/52
Filed: 1967-08-22
Abstract: 1,200,655. Clarifying vessel. SOC. D'ETUDES POUR LE TRAITEMENT ET L'UTIILISATION DES EAUX. 22 Aug., 1967 [28 Sept., 1966], No. 38705/67. Heading B1D. A clarifying vessel for removing impurities from liquids comprises, within an outer envelope 1, a compartment 4, 5 in which a fluidised bed, dirt agglomeration process is intended to occur, and a compartment 3 for classical filtration, whereby the liquid rises in the pre-treatment compartment, slows down owing to the increasing cross-section thereby avoiding entrainment of the agglomerated particles, and overflows into the filtration compartment over a weir 2. As described, compartment 4, 5 surrounds compartment 3 concentrically, and may be sub-divided by radial walls. Liquid enters through perforated pipes 10, 11 and after filtration through sand 9 enters a chamber 8. To keep clean the material 13 of the fluidised bed, it is circulated by a pump 15 through a hydrocyclone 17 which removes the agglomerated particles. A gutter 19 is provided for discharging the washing water. Specification 1200364 is referred to.
Patent GB-1220149-A (GB)
Title: Improvements in or relating to plastics sheeting with supporting mesh
Inventor: DREWERY JOHN WILSON
Filed: 1968-08-14
Abstract: 1,220,149. Plastics-wire mesh laminate. TINSLEY WIRE INDUSTRIES Ltd. 7 Aug., 1969 [14 Aug., 1968], No. 38798/68. Heading B5N. A laminate comprises a wire mesh faced on both sides with plastics sheeting and secured thereto by bonding between the sheet and the wire, the plastics sheets being separated from each other over the mesh apertures by the thickness of the wire. Bonding may be airdrying adhesive, or may be effected between the sheet and a plastics coating on the wire by solvent cement welding or heat welding; in either case pressure may be applied. The wire mesh may also be uncoated or galvanized. The plastics sheeting may be transparent, opaque or coloured polyvinyl chloride, polyethylene, polypropylene, polyester or acrylic resin; it may be heat-shrinkable.
Patent GB-1124032-A (GB)
Title: Improvements in or relating to supercharged internal combustion engine power plants
IPC: F02B37/04
Filed: 1965-09-11
Abstract: 1,124,032. Hydrodynamic torque converters. W. GLAMANN. 11 Sept., 1965, No. 38887/65. Heading F2C. [Also in Division F1] A hydrodynamic torque converter comprises a main impeller 3 driven by an engine crankshaft 1, a main turbine 4 driving an output shaft 5, reaction members 6, 7, and a combined contra-rotating reaction and turbine member 8 driving a compressor 18 through gearing 15. The members 6, 7 are mounted on a stationary member 12 through freewheel devices 9, 10, and the member 8 is mounted on rotating shaft 14 through freewheel device 11. The torque converter may be combined with a differential gear having an input element driven by the crank-shaft, a first output element driving the impeller 8, and a second output element driving the compressor 18 in addition to its drive from the converter member 8.
Patent GB-1150530-A (GB)
Title: Methods of Establishing a Connection on Printed Wiring
IPC: H05K3/22
Filed: 1967-08-24
Abstract: 1,150,530. Soldering. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 24 Aug., 1967 [27 Aug., 1966], No. 38993/67. Heading B3R. [Also in Division H2] In making a soldered connection between two points on a printed wiring board by means of a substantially U-shaped wire inserted into two spaced orifices in the board, the part of the U connecting the limbs has a shape deviating from a straight line on the side remote from the limbs and after the limbs are inserted into the orifices the connecting part of the U is straightened by pressure exerted normally to the board so that the limbs are caused to diverge sufficiently to prevent the wire falling out of the orifices, the wire being subsequently soldered to the wiring board. An insulating board 1 with printed wiring 3, 5 on its lower side has orifices 7, 9 extending through the wiring and into the orifices are inserted the limbs 13 of a U-shaped wire having a kinked connecting portion 11. A stamp exerts pressure on the portion 11 to straighten it and cause the limbs to diverge so that the wire may not fall out during transport. The wire is finally secured by dip soldering. In a modification for use with more widely spaced orifices, the U connecting portion has a kink near each limb. Alternatively, the connecting portion may be shaped as a circular arc.