baber/WOPTO huggingface dataset:
Patent GB-1443739-A (GB)
Title: Centrifuge
IPC: B04B1/14
Filed: 1973-09-11
Abstract: 1443739 Centrifugal separators ESCHER WYSS Ltd 11 Sept 1973 [11 Sept 1972] 42739/ 73 Heading B2P A centrifuge comprises a rotatable solidwalled drum 2 having an inlet 3 for a mixture of liquid and solids to be centrifuged, an overflow 4 for clarified liquid, an outlet 5 for the solids, and a pushing means 6 for causing movement of the solids in the drum towards the outlet 5, the drum being divided into a first zone 7 in which movement of the solids is caused by the pushing means 6 and into a second zone 8 in which a deposition channel 9 located outside the region of the pushing means is provided for the solids, a bottom outlet at the base of the channel serving as the solids outlet 5. In Fig. 1, the pushing means consists of annular cylinders 6<SP>1</SP>-6<SP>6</SP> which are covered by flexible diaphragms 18<SP>1</SP>-18<SP>6</SP>. By alternate expansion of the groups of diaphragms 18<SP>1</SP> and 18<SP>4</SP>, 18<SP>2</SP> and 18<SP>5</SP>, and 18<SP>3</SP> and 18<SP>6</SP>, obtained by connecting these groups alternatively to a source of pressure medium and to a source of vacuum through conduits 19 and 20 21 and 22, and 23 and 24 respectively, the separated solids in the drum are caused to move to the outlet 5. The inlet 3 opens into an acceleration funnel 16 integral with the bowl. The outlet 5 is defined between ring portions 12 and 13 of the bowl and of a lid 14 thereof. The lid 14 is mounted on the funnel 16 and is urged towards the bowl by a spring 17 which allows the inlet 5 to open when sufficient solids has deposited in the channel 9. In Fig. 2, the pushing means 6 is formed by a worm fastened on a shaft 25 which also carries the acceleration funnel 16 and which rotates at a speed different from that of the bowl. In this case, relative rotation exists between the ring portions 12 and 13 and prevents clogging of the outlet 5. Alternatively, a ball bearing may be incorporated between the spring 17 and the lid 14 and guides for preventing relative rotation of the ring portions 12, 13 may be provided between these ring portions.
Patent GB-946035-A (GB)
Title: Improvements in and relating to pyridinium compounds
IPC: C08F6/22
Filed: 1961-12-01
Abstract: The invention comprises quaternary pyridine compounds of formula: <FORM:0946035/C2/1> in which X is a halogen radical R1, R2, R3 and R4 are hydrogen or alkyl radicals having 1-12 carbon atoms; and R5 is a radical having the structure: <FORM:0946035/C2/2> in which R6, R7 and R8 are C1-C12 alkyl radicals, only of which can have a branched chain; R9 is a C1-C20 alkyl radical; R10 i a hydrogen atom, halogen radical or an alkyl radical having 1-4 carbon atoms; and R11 is a hydrogen atom or a C1-C4 alkyl group.  They may be prepared by reacting a pyridine compound of formula: <FORM:0946035/C2/3> with a halogenated olefinic compound of formula <FORM:0946035/C2/4> at 60-200 DEG C.  The reactants are preferably reacted in equimolar proportions but 0.1 to 10 moles of pyridic compound per mole of the halo-substituted olefinic compound may be used.ALSO:Pyridine quaternary compounds of general formula: <FORM:0946035/C3/1> in which X is a halogen radical, R1, R2, R3 and R4 are hydrogen atoms or C1-C12 alkyl radicals; and R5 is one of the radicals: <FORM:0946035/C3/2> -CH2CH=CHCH2CH2OR9, CH2=CHCHCH2CH2OR9 <FORM:0946035/C3/3> or <FORM:0946035/C3/4> in which R6, R7 and R8 are C1-C12 alkyl radicals, only one of which may be branched, R9 is a C1-C20 alkyl radical; R10 is a hydrogen atom, a halogen radical or a C1-C4 alkyl radical; and R11 is a hydrogen atom or a C1-C4 alkyl radical, may be used as resin coagulants.  For example, a suspension of a polymer containing 30-60 parts by weight of vinyl chloride and 40-70 parts of acrylonitrile dispersed in water may be coagulated by the addition of 2% by weight of one of the pyridine quaternary compounds, heating the mixture to 110 DEG C. and then cooling it to 70 DEG C.  A suspension of a terpolymer containing 70 parts by weight of acrylonitrile, 20 parts of vinyl chloride and 10 parts of vinylidene chloride dispersed in water may be similarly coagulated.ALSO:Insect repellents comprise pyridine quaternary compounds of general formula <FORM:0946035/A5-A6/1> in which X is a halogen radical; R1, R2, R3 and R4 are hydrogen atoms or C1-C12 alkyl radicals; and R5 is one of the radicals <FORM:0946035/A5-A6/2> , <FORM:0946035/A5-A6/3> , <FORM:0946035/A5-A6/4> , <FORM:0946035/A5-A6/5> or <FORM:0946035/A5-A6/6> in which R6, R7 and R8 are C1-C12 alkyl radicals only of one of which may be branched; R9 is a C1-C20 alkyl radical; R10 is a hydrogen atom, a halogen radical or a C1-C4 alkyl radical; and R11 is a hydrogen atom or a C1-C4 alkyl radical, in solution or emulsion.  In examples insect repellents of the following composition are described: (a) a 2.5% (by weight) solution of 1 - {5 - [4 - (2,6,8 - trimethylnonoxy)] - 2 - pentenyl} - 2 - methyl - 5 - ethyl pyridinium chloride in acetone; and (b) an emulsion of 1 - [3 - chloro - 4 - (2 - cyclopentenyl) - 2 - butenyl] - 2 - methyl - 5 - ethylpyridinium chloride in acetone and water and an alkyl aryl polyether alcohol as emulsifier.
Patent GB-1514839-A (GB)
Title: Vibratory mechanism including hydrodynamic bearings
IPC: B07B1/46
Filed: 1975-10-22
Abstract: 1514839 Vibratory apparatus HUTSON CORP 22 Oct 1975 [21 Nov 1974] 43330/75 Heading F2S [Also in Division B3] A vibratory machine includes a vibrationgenerating mechanism 50, Fig. 2, comprising a shaft 52 carrying eccentric weight assemblies 56 and rotatably mounted in a tubular housing 68 by way of spaced hydrodynamic bearings 82, the housing 68 and the shaft 52 having substantially matched deflection characteristics under the action of forces generated during rotation of the eccentric weight assemblies. The construction according to the invention is said to increase the life of the hydrodynamic bearings. The vibratory machine may take the form of a vibratory finishing machine 10, Fig. 1, in which a tub 14 mounted on air bags 22 is connected through brackets 46 to the housing of the vibration-generating mechanism. The vibratory machine may alternatively take the form of a vibratory screener or a vibratory conveyer.
Patent GB-1286325-A (GB)
Title: A track system comprising a rail, an electrically powered vehicle adapted to run on the rail, and an electric supply cabe
IPC: D01H/
Filed: 1969-09-02
Abstract: 1286325 Taking up slack in flexible cables SOC ANON DES ETABS NEU 2 Sept 1969 [17 Sept 1968] No 43333/69 Heading B8B A track 1 along which an electrically driven trolley 3 is adapted to roll comprises a pair of C-sectioned rails, the inner contour of one of which guides an electric supply cable 4 extending between a fixed point mid-way along the track, and the trolley 3, each end of the one rail having an aperture in its base through which the loop of cable depends to reduce stressing thereof as the trolley direction is reversed at the ends of the rail. Walls 11 depend from the apertures to laterally guide the cable once it extends out of the rail. The cable 4 is coupled to the trolley through a pivotable connection which facilitates cable loop formation. The rails which may be straight or curved, may be made of plastic or metal with or without a friction reducing interior coating.
Patent GB-874337-A (GB)
Title: Process for preparing nitro derivatives of chloro-substituted ethylenes
IPC: C07C205/09
Filed: 1959-12-21
Abstract: Nitro derivatives of chloroethylenes are made by introducing nitrogen dioxide into 1,2-dichloroethylene at temperatures within the range of -20 DEG  to + 90 DEG C.  The crystallized oxalic acid obtained as a by-product may be separated, if necessary after cooling to 0 DEG C., and the unreacted 1,2-dichloroethylene may be distilled off from the reaction product which consists of a mixture of 1,2-dichloro-1-nitro-ethylene and the dimer of monochloronitroethylene, the latter being novel.  The reaction may be carried out in counter-current whereby the dichlorethylene is introduced at the head of the reaction column, nitrogen dioxide is passed into the sump, and part of the reaction mixture may be drawn off from the sump and reintroduced at the head of the column.  The reaction may be effected under conditions of reflux and may be effected in continuous manner.  The pressure may vary from 0.1 to 2 atmospheres absolute.  The reaction is preferably terminated at a degree of conversion of less than 50%.  A flow diagram of suitable apparatus is described.
Patent GB-1517808-A (GB)
Title: Vehicle wheel and tyre assembly
IPC: B60C7/12
Filed: 1975-10-23
Abstract: 1517808 Vehicle wheel-and-tyre assemblies CONTINENTAL GUMMI-WERKE AG 23 Oct 1975 [29 Nov 1974] 43530/75 Heading B7C A vehicle wheel-and-tyre assembly comprises an annular rubber member 8 and a solid tyre having beads 3 engaging flanges 4 of wheel rim portions 5, 6 the rubber member 8 resiliently urging the wheel rim portions 5, 6 axially outwardly so as to tension a carcase 2 of the tyre in the axial direction.
Patent GB-1472123-A (GB)
Title: Mowing and/or hay-making machines
IPC: A01D34/66
Filed: 1974-04-16
Abstract: 1472123 Mowing and/or hay-making machine C VAN DER LELY NV 16 April 1974 [13 April 1973] 43614/76 Divided out of 1472122 Heading A1F Each rotor 9, 10 has a felly 80 to which supports carrying crop working members are pivotally mounted and each felly is supported by spokes 79 from a plate 76 secured to a rotatable shaft 57, the lower end of which carries a freely rotatable dish 81 comprising a ground engaging plate 82 and the upper end of which is driven from a tractor p.t.o. through a gear box 51. Bearings 68, 73 for the shaft 57 are housed in a frusto-conical or flat sided member 70 secured to a beam 3. The beam 3 is supported from a boom 4 by a pivot 32 and a spring 34 around a pin 33 and the boom 4 can be pivoted into an inoperative transport position behind a boom 1 which is attached to a tractor. Crop guides 41, 46 direct out grass, guided by the crop working members between the oppositely rotating rotors, into swaths or windrows, or they may be placed in an inoperative position above boom 4 and beam 3 for tedding or transport. Crop working members, such as blades and tines, and their supports are mounted as in Specifications 1472121, 1472122, 1472124 or as shown in Fig. 7 where a single spring steel strip provides both the blade and supports pivotable about a pin 90.
Patent GB-1213662-A (GB)
Title: Swash plate pumps and motors
Inventor: BOYDELL KENNETH RAYMOND
IPC: F01B3/10
Filed: 1967-02-23
Abstract: 1,213,662. Hydraulic reciprocating pumps and motors. DOWTY TECHNICAL DEVELOPMENTS Ltd. Dec.27, 1967 [Feb.23, 1967; Sept.26, 1967], Nos.8709/67 and 43716/67. Heading F1A. A swash-plate pump or motor comprises an integral casting, e.g. of aluminium alloy, forming an open-ended casing 7 and a valve face 2, a cylinder block 8, e.g. of cast iron, being located in the casing by engagement with valve face 2 and by engagement of a bearing surface 14 in the casing with a bearing surface 13 on the block. Integral lugs 18 on the casing have apertures for one or more shafts 19 carrying the swash-plate 21, which may be of fixed or adjustable inclination. Spring- loaded pistons 25 engage the swash-plate through ball jointed slippers 29, which may be hydraulically balanced and are held against the swash-plate by a retaining plate 36. A spring 43 acts to bias plate 36 towards the swash-plate and block 8 towards the valve face. As a pump, the unit is immersed in a reservoir and supported by bolts engaging threaded apertures in end 6 of the casing. Liquid enters the open end of the casing and is pressurized by centrifugal action while passing through block passages 15 and casing space 16, which may have a guide vane. From space 16, the liquid enters a recess 17 in registration with cylinder ports 12. The liquid is discharged through port 3. A splined aperture 45 is provided for engagement by a drive shaft, e.g. of an electric motor. Assembly is effected by inserting the block in the casing, inserting the piston assemblies and plate 36, locating swash-plate 21 in position, and inserting shaft 19 through lugs 18 and the swash-plate, the shaft axis being offset from the block axis. Spring clips hold shaft 19 in position Fig.2 (not shown). For motor operation, port 3 is used for the highpressure supply and means other than passages 15 are provided for the discharged liquid.
Patent GB-1328211-A (GB)
Title: Submersible dredger
IPC: E02F3/88
Filed: 1970-09-15
Abstract: 1328211 Submersible dredgers SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 15 Sept 1970 [17 Sept 1969] 43944/ 70 Heading E1F The propulsion means for a submersible dredger comprise hull-mounted winch systems 2 hauling on anchored cables, the winch systems being powered from electrically driven means 8 located within the hull, supplied with electrical power from a point remote from the hull, and controlled by operators within a watertight compartment of the hull. Preferably the compartment is a pressurisable, spherically-shaped chamber 16 attached to the top of the hull. The dredging means involve bladed rotary cutters 4, suction means 5 and jetting means fed with pressurised water from a pump for the ballast tanks of the hull.
Patent GB-1158282-A (GB)
Title: Photoelectric Method of Measuring Angular Position.
IPC: H04B10/00
Filed: 1966-10-03
Abstract: 1,158,282. Photo-electric telemetry. JOS. SCHNEIDER & CO. OPTISCHE WERKE. Oct. 3, 1966 [Oct. 2, 1965], No.44074/66. Heading G1A. [Also in Division G2] Apparatus for detecting the position of an indicator comprises a light guide mounted on the indicator for rotation therewith, a fixed light guide defining a reference position and a constantly rotating light guide which aligns with each of the other light guides once per rotation. Light from source 7 passes along a fixed fibre optic light guide 9 and a fibre optic light guide 2 on a rotary indicator 1. The light from these guides is picked up by a fibre-optic light guide 5 on a motor driven mounting 3 and passed to a photodetector 8 to produce pulses. The relative phase of which indicates the indicator position. The phase may be measured by analogue or digital means e.g. a counter. In a modification, Fig. 3 light from source 7 passes along a light guide 12 through the axis of motor 4 and passes to reference and indicator light guides 9, 2. The indicator light pulse passes along guide 11 coaxial with guide 5 to detector 8, the reference pulses being generated by detector 8a. In a modification, Fig.2 (not shown) source 7 is replaced by a detector and detectors 8, 8a by one or two sources. Where light guides are coaxial as at E5/A11 and A12/E13, cross-talk due to reflections of the faces is prevented by arranging the end faces of the inner and outer guides in different planes, Fig. 4 (not shown).
Patent GB-1159894-A (GB)
Title: Multi-Stage Electronic Switching Network
IPC: H03K17/70
Filed: 1967-09-28
Abstract: 1,159,894. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 28 Sept., 1967 [4 Oct., 1966], No. 44228/67. Heading H4K. In a multistage self-seeking switching network which utilizes PNPN diodes as the crosspoint elements and which has an RC circuit associated with each vertical in each matrix for control purposes, the time constants of the RC circuits, the rise time and magnitude of the end marking potentials and the characteristics of the diodes are chosen such that although the selection of a path retains its random nature the number of diodes fired at any one time during path seeking is restricted by allowing each diode to cyclically turn on and off so that excessive currents do not flow. It is stated that in a large network and with an uncritical choice of the components in the RC circuits in particular, a large number of diodes may fire during the fan-out process even though (thanks to the manufacturing tolerances of the diodes and the presence of the RC circuits) in each matrix not more than one diode at a time is normally fired. A close analysis of PNPN diode characteristics (involving a study of their response to steady state and slow- and fast-rising potentials, slow- and fast-rising pulses whose final amplitudes may be above, at, or below the steady state or rate effect firing potentials and under conditions of forward, none, or reverse bias (Fig. 6-15, not shown) leads to the conclusion that during the rise time of the marking potentials each diode in a matrix can be switched on and off more than once during the rise time of an end marking potential whence by a careful choice of circuit parameters it is arranged that each diode in one stage only " looks at " a limited number of diodes in the following stage each time it turns on (the particular diodes looked at of course being different at each turn-on). Thus in each matrix the row of diodes involved in path-seeking is effectively scanned repeatedly, each scan causing the diodes to look at a different set of diodes in the next stage (which are also being subjected to a similar scanning but at a different frequency) whereby eventually a coincidence occurs such that a free path from a marked inlet to a marked outlet is found and seized. It should be noted that transients are of prime importance here and that the speed of path finding is greater the busier or more blocked the network is. The system is applicable to balanced or unbalanced transmission between subscribers. The diodes used are preferably of the silicon planar epitaxial type. An analogue of the (4-stage) network is suggested in the form of three rotatable discs which each have a radial slit and which are located between a light source and a photocell. The width of the slits and the speed of rotations are all varied in dependence on the instantaneous state of the network until a through path from the source to the cell is obtained whereupon the discs are " frozen " and communication is effected by modulating the light beam.
Patent GB-1099346-A (GB)
Title: Improvements in or relating to water turbines pumps and reversible pump turbines
Inventor: BRAIKEVITCH MICHAEL
IPC: H02K7/18
Filed: 1964-10-30
Abstract: 1,099,346. Mounting rotors of dynamo-electric machines. ENGLISH ELECTRIC CO. Ltd. Oct. 29, 1965 [Oct. 30, 1964], No. 44385/64. Heading H2A. [Also in Division F1] The pole-wheel 20 of a synchronous machine is carried by the bladed runner 11 of a pump/ turbine and rotates in a circumferential channel formed by flanges 32, 33 of the duct tube 17 and the bore of the stator 28. The stator bore is protected by a plastic sleeve 29 which serves to seal the liquid duct. The pole-wheel is encapsulated in resin or stainless steel. In a modification (Fig. 3, not shown), the rotor is of squirrel-cage type for induction operation.
Patent GB-931384-A (GB)
Title: Cold cathode electron discharge device
IPC: H01J29/38
Filed: 1961-12-13
Abstract: 931,384. Discharge tubes. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE FIL. Dec. 13, 1961 [Dec. 21, 1960], No. 44595/61. Class 39 (1). A photo-cathode structure 1, e.g. for use in a cathode-ray tube 11, itself comprises a gaseous discharge tube, the gaseous discharge exciting either directly or through a fluorescent coating applied to the inner wall of the container, the photo-emissive coating 8 provided on the front surface of an, e.g. glass, window 3. The photo-emissive coating is deposited on a thin transparent conductive film. The gaseous discharge, which may be pulsed, is set up between the wall of the container and a metal rod electrode 5 traversing a glass or ceramic wall 4. The gas filling may be argon, neon or hydrogen at 10<SP>-3</SP> mm. Hg.
Patent GB-1167562-A (GB)
Title: Novel 3-(2-Substituted Ethyl)Indoles and Processes for Their Manufacture
IPC: A61K31/00
Filed: 1966-10-06
Abstract: 1,167,562. Indole derivatives. A. H. ROBINS CO. Inc. 6 Oct., 1966 [23 Oct., 1965], No. 44649/66. Heading C2C. Novel 3 - (2 - substituted ethyl) - indoles of the general formula wherein R is a hydrogen atom, a C 1-8  alkyl or C 1-9  alkanoyl group, a benzoyl group optionally substituted by fluorine, chlorine or bromine atoms or C 1-3  alkyl, C 1-3  alkoxy or trifluoro methyl groups, a phenyl group optionally substituted by fluorine, chlorine or bromine atoms or C 1-3  alkyl, C 1-3  alkoxy or trifluoromethyl groups, a phenyl C 1-8  alkyl group or a C 3-9  cycloalkyl group; R 1  is a hydrogen atom, a C 1-8  alkyl group or a phenyl group optionally substituted as indicated above; R 2  is a hydrogen, fluorine, chlorine or bromine atom or a trifluoromethyl, hydroxyl, C 1-8  alkyl, or C 1-8  alkoxy group or a phenyl.C 1-8  alkoxy group in which the phenyl moiety is optionally substituted as indicated above; R 4  is a hydrogen atom or a phenyl group optionally substituted as indicated above; A is a hydrogen atom, a C 1-9  alkanoyl group, a phenyl group optionally substituted as indicated above, a benzoyl group optionally substituted as indicated above or a phenyl-carbamoyl group in which the phenyl moiety is optionally substituted as indicated above; m is 0 or 1; and n is 1, 2 or 3; provided that when m is 1, R, R 1 , R 2 , R 4  and A are not all hydrogen atoms, and acid addition and quaternary ammonium salts thereof are prepared (a) by metal hydride reduction of a 1-(indol-3-ylglyoxyloyl)-3-substituted pyrrolidine or -4-substituted piperidine of the general formula wherein R is a hydrogen atom, a C 1-8  alkyl group, a phenyl group optionally substituted as indicated above, a phenyl-C 1-8  alkyl group or a C 3-9  cycloalkyl group and A is a hydrogen atom or a phenyl group optionally substitpted as indicated above; (b) by reaction of a 3- (2-hydroxyethyl)-indole of the general formula with a thionyl halide and reaction of the resulting 3-(2-haloethyl)-indole of the general formula wherein X is a halogen atom, with a heterocyclic amine of the general formula or (c) by dehydration of a 3-(2-substituted ethyl)-indole of the first general formula above wherein A is a hydrogen atom; followed optionally by salification. Novel 1 - (indol - 3 - ylglyoxyloyl) - 3 - substituted pyrrolidine or -4-substituted piperidines of the second general formula above are prepared by reaction of an indole-3-glyoxyloyl chloride of the general formula with a heterocyclic amine of the fifth general formula above. Pharmaceutical compositions having an anti- Parkinsonism effect comprise, as active ingredient, a 3-(2-substituted ethyl)-indole of the first general formula above or a pharmaceutically acceptable acid addition or quaternary ammonium salt thereof, together with a pharmaceutically acceptable carrier, and may be administered orally or parenterally.