baber/WOPTO huggingface dataset:
Patent GB-933472-A (GB)
Title: Improvements in or relating to the separation of solids from a suspension in a liquid
Inventor: LOVEGREEN ALAN TREVOR
IPC: B03B5/62
Filed: 1958-09-16
Abstract: 933,472. Classifying granular materials; mixing in conduits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Dec. 14, 1959 [Sept. 16, 1958; Aug. 11, 1959], Nos. 29638/58 and 27438/59. Addition to 843,536. Classes 86 and 117. [Also in Group I] The invention in its simplest form is exemplified by Fig. 1 (not shown) which resembles Fig. 1 of the parent case but is modified in that the receiver consists of a funnel continued as a discharge duct extending below the level of the base of the stilling pot and ending in a flap valve counterweighted to open when the column of heavy or coarse particles reaches a predetermined height. Fig. 2 (not shown), is further modified by extension of the funnel top of the receiver to accommodate a float-operated water inlet valve so that the water level in the receiver is self-regulating. In Fig. 4 the free liquid surface of the receiver is eliminated. The receiver 32 is joined by a taper section 33 to the main vessel 11; to ensure that the ambient pressure is maintained in the upper part of the receiver, a diaphragm valve 28 is provided; the right-hand side of the diaphragm is spring-loaded and in communication with the receiver 32 while the left-hand side is open to atmosphere and carries a needle valve which controls the admission through a T-junction of water from a tank 36 to a point 29 of the receiver. Excess water may be extracted from the column of coarse particles through a filter consisting of spaced rods 26 by a water jet vacuum pump 25. Solids are fed in at a hopper 37 spaced a little below the surface (governed by an overflow 39) of the water in the tank 36, and mix with water in the hopper. In Fig. 6 a secondary elutriator, to return particles below the required size to the main vessel, is provided. It consists of a tube 59 located between the main vessel 11 and the discharge duct 17, a guide tube 61 for upward-flowing suspension, a honeycomb distributer 55 similar to that, 12, in the main vessel (see Fig. 4) and a tangential water inlet 58. A diaphragm valve 28 and associated water inlet 29 are again provided, and also a second honeycomb distributer 62. When operation has begun, a column of coarse particles in liquid builds up in the discharge duct 17, and liquid seeps through the perforate top 43 of a fixed cone 41, and flows along a flexible tube 45 (having connections to closed bellows 44) to an open outlet valve 47. If the column of particles exceeds the predetermined height, the rate of seepage falls, pressure in tube 45 and bellows 44 falls, and the bellows partially collapse; the bellows in collapsing raise, through linkage, the duct 17 from contact with a seating 42 on the cone 41, permitting wet solids to discharge until the pressure returns to normal. The duct 17 is flexibly attached to the tube 59 at 52. The duet may be fixed and the cone movable; in that case the cone could be replaced by a hinged flap formed partly as a strainer.
Patent GB-432346-A (GB)
Title: Improvements in or relating to valve gear for internal combustion engines
IPC: F01L1/26
Filed: 1934-10-26
Abstract: 432,346. Valve gear. ALDWINCKLE, A. J. M., 31, Percy Street, Yeoville, Johannesburg, South Africa, and ALDWINCKLE, S., 17, Norham Road, Oxford. Oct. 26, 1934, No. 29652/33. [Class 7 (vi)] [See also Group XXXIV] Four overhead radial valves are actuated by rockers a engaging inclined cams c on a pair of cam shafts c<1>, the rockers being formed with ball ends which engage shoes b bearing on the cams. The cam shaft bearings c<2> are detachably supported by bolts and nuts fitted with asbestos washers to insulate from heat. The cam shafts are driven by worm gearing d, d from a vertical shaft e, when this shaft is arranged between an inlet and an exhaust valve. In a modification, the vertical shaft is placed between two exhaust or two inlet valves, and drives through bevel gear a single cam shaft having two inclined cams, one of whch actuates the two rockers of the inlet valves, and the other the two rockers of the exhaust valves. Oil for lubricating is pumped up the hollow shaft e into a shallow cup g, whence it is distributed by centrifugal force. Oil is flung on to the underside of the top of the housing, where tapered projections drop it on to the rocker bearings. Oil also drops from the inspection cover h on to the driving-gears, an overflow k being provided leading to the casing of the shaft e.
Patent GB-491127-A (GB)
Title: Improvements in or relating to radio direction finders
IPC: G01S3/08
Filed: 1937-10-29
Abstract: 491,127. Directive wireless signalling. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Oct. 29, 1937, No. 29664. Convention date, Oct. 29, 1936. [Class 40 (v)] Relates to means for eliminating false " zeros " in a direction-finding system of the kind in which two or more pairs of aerials are arranged in opposition, for the purpose of avoiding " night effect." According to the invention the aerials are all set in the same horizontal plane, so that they can only rotate as a whole. Preferably they are located at a height of at least one-twentieth the working wavelength above ground. The Figure shows a plane of two pairs of horizontal aerials, F1 being coupled in opposition to F3, and F2 in opposition to F4, to a central radiogoniometer G. The individual frames have substantially no directional effect in azimuth and this reduces the usual four-fold ambiguity of double-frame arrangements to a two-fold ambiguity. An auxiliary frame or horizontal linear aerial can be added to give a unilateral or non-ambiguous response.
Patent GB-1343589-A (GB)
Title: Device for shrinking a wrapper consisting of a plastic sheeting  shrinkable by heating around a transport unit
IPC: B65B53/02
Filed: 1972-06-23
Abstract: 1343589 Ovens for heat shrink packaging BONNIERFORETAGEN AB 23 June 1972 [12 July 1971 9 Feb 1972] 29684/72 Heading F4B [Also in Division B8] Apparatus for heat-shrinking a wrapper positioned around a plurality of goods-for example packages or magazines-comprises electric radiation elements 11 mounted on a support 5 in front of substantially flat reflectors 12, the energy peak of the elements being at a wavelength of substantially 1À2 microns and the major portion of the radiation lying within the wavelength range of 0À4 to 4À0 microns. The support 5 comprises a tunnel having ventilated sides arid roof and an open bottom along which a conveyer consisting of steel bands 3 or a steel foraminous belt runs. The elements may be heated continuously or only when wrapped goods pass through the tunnel. The elements may be unevenly distributed on the sides of the tunnel and evenly distributed on the top.
Patent GB-268253-A (GB)
Title: Improvement in plant for washing minerals by means of liquid streams
IPC: B03B5/68
Filed: 1926-11-25
Abstract: 268,253. France, A. Nov. 25, 1926. Upward-current classifiers. - In a plant for washing minerals, of the type comprising a launder a, Fig. 1, for a conveying stream and single or multiple compartment separators e depending from the launder with one or more longitudinal vertical partitions b dividing the width of the launder, one or more corresponding partitions c are provided as extensions of the partitions b dividing the compartments d, Fig. 2, of the separators e. The partitions c in modification Figs. 3 and 5 are forked at hh and provided with. adjustable discharge orifices. In Fig. 3 the ad-- justment is made by thickening parts of walls i of the separators and making these adjustable in relation to fixing bolts m whereby the discharge orifice at the junction of the parts i and h is controlled. In another modification ,Fig. 5, the discharge orifices are controlled by inclined baffles n pivoted at v to arms p rigidly mounted on a rotatable shaft r. Specification 265,077 is reerred to.
Patent GB-721954-A (GB)
Title: Filing cabinets
IPC: A47B63/02
Filed: 1951-12-21
Abstract: 721,954. Filing papers. TITCOMBE, C. S. Dec. 18, 1952 [Dec. 21, 1951], No. 30000/51. Class 146 (1). A filing cabinet comprises a frame with a rearwardly sloping open front with a stepped rack therein for cards, tickets or the like and transversely arranged removable partition pieces supported in the sides of the frame to divide the accommodation into pockets which can be varied in size, the partitions forming the back and front of the pockets. The frame a of the cabinet is made from sheet metal, and viewed from the side, is of triangular shape with the open front forming the hypoteneuse, the rack b being secured therein parallel to the front edges, and either the frame sides or members e secured thereto have notches or grooves f to receive the end edges of partition pieces d which separate the record cards c into groups. As shown in Fig. 3, the rack b may be made from rubber or like material having a large number of small steps b<SP>1</SP> so that the cards c within a group are also stepped up and additional partition pieces h<SP>1</SP> may be used as an index. As shown in Figs. 4 and 7, the rack b may be made from sheet metal pieces shaped to form steps b<SP>1</SP>, each step accommodating a group of cards c, preferably each step bs being slightly inclined to the horizontal to displace the upper edges of the cards slightly for manipulation. The partition pieces d may have a central or other cut out portion and similarly the index partitions h<SP>1</SP>, the cut away parts being staggered. As shown in Fig. 7, the partition may be in the form of a pocket d<SP>1</SP>, the back portion of which engages with the grooves f and has a shoulder d2 resting on the edge of the adjacent step b<SP>1</SP>. The pocket partition d<SP>1</SP> will hold a group of cards c at a level between the groups of cards on the step below and the step on which it rests. A number of racks may be arranged side by side in a single cabinet. The edges of the frame a may carry an index holder g in the form of a metal strip along an edge. A door or slidable cover may be provided for the open front of the frame.
Patent GB-445938-A (GB)
Title: Improvements in or relating to television and like scanning systems
IPC: H04N3/04
Filed: 1934-10-19
Abstract: 445,938. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, and DOWSETT, H. M., 47, Drayton Gardens, Winchmore Hill, both in London, and WALKER, L. E. Q., Devon House, Townsend Drive, St. Albans, Hertfordshire. Oct. 19, 1934, No. 30048. [Class 40 (iii)] The lenses 2 of a lens drum 1 are cylindrical lenses, preferably set with their axes parallel to the drum axis. The scanning beam may be focussed by a further cylindrical lens crossed with respect to the lenses 2; alternatively, each lens 2 may be associated with a crossed cylindrical lens which moves with it.
Patent GB-998703-A (GB)
Title: Improvements in dyeing and printing of natural or synthetic polyamide fibres, and theresulting dyed or printed fibres
IPC: C09B62/00
Filed: 1963-07-30
Abstract: Dyeings and prints made on natural or synthetic polyamide fibres with reactive dyes under acid conditions are after-treated with condensation products, preferably in dissolved form, which are obtained by reacting formaldehyde with dihydroxydiphenyl sulphones and aromatic sulphonic acids in acid solution.  The preferred sulphone is 4, 41-dihydroxydiphenyl sulphone and the specified aromatic sulphonic acids are monoto tri-sulpho-naphthalenes, especially 2-sulphonaphthalene and 1, 2, 3, 4-tetrahydronaphthalene sulphonic acid.  The after-treatment may be effected at 60-80 DEG C. for 15-30 minutes, either by adding the condensate to the dyebath or by rinsing and treating in a fresh bath; preferably the after-treatment is accomplished at pH 4,5-5 using acetic acid.  Many types of reactive, water-soluble dyes are specified.  Examples of dyeing wool and nylon are given. Specification 375,160 is referred to.
Patent GB-1516354-A (GB)
Title: Polyvinyl chloride/fabric composite structure
IPC: E04D11/02
Filed: 1975-07-17
Abstract: 1516354 Polyvinyl chloride/fabric laminates DYNAMIT NOBEL AG 17 July 1975 [17 July 1974] 30123/75 Heading B5N A composite structure used in protecting surfaces, e.g. in mining and tunnelling, comprises two soft polyvinyl chloride films of different composition laid one on top of the other and united together, the films being bonded in turn to an open weave fabric or non-woven mesh fabric formed by laying of filaments across each other to form, an open network and bonding the filaments together at their points of intersection, the junction points of filaments forming the fabric being sufficiently weak to allow slipping or distortion of filament interconnections. When the fabric is subjected to a load so that the load is taken up elastically without rupture ofthe filaments or destruction of the interconnection. The composite structure may be produced by applying a first soft polyvinyl chloride plastisol to a continuous support at ambient temperature heating to a temperature of 160- -200 C. to gel partially the first plastisol, applying thereto a layer of a second soft polyvinyl chloride plastisol of different composition to the first plastisol laying the fabric on the second plastisol while it remains ungelled, heating to a temperature of 160-250 C. to gel the plastisol layers and removing the composite structure from the support. The fabric and polyvinyl chloride layer may be bonded together by adhesive. The fabric may be produced from glass, polyester, polyamide, polyethylene, polypropylene or polycarbonate filaments. The fabric may be pretreated with an amino silane, vinylsilane or polyvinyl propionate. The woven fabric may have a linen weave or may be a gauze or twill. In the case of a non-woven material the filaments may be bonded by welding or adhesive bonding. The outer polyvinyl chloride layer may contain stabilizers and may have a low filler content, e.g. up to 5% by weight and the intermediate polyvinyl chloride layer may have a relatively e.g. 50-60% by weight, a suitable filler being chalk. The soft polyvinyl chloride may contain 30-50% by weight of plasticizer. A fabricfree zone may be provided along the marginal regions of the composite structure to facilitate bonding to adjacent strips when covering a surface.
Patent GB-976995-A (GB)
Title: Control circuit
IPC: G05B19/07
Filed: 1962-08-07
Abstract: 976,995. Electronic counters. SQUARE D CO. Aug. 7,1962 [Aug. 7, 1961], No. 30138/62. Heading G4A. [Also in Divisions H2 and H3] Binary counting apparatus (Fig. 17) comprises a number of units depicted in Fig. 14 connected in cascade, each of the units comprising a pair of NOR units 82,84 (see Fig. 11) cross-coupled to form a bi-stable circuit driven by a steering circuit 64 to the terminal A of which are applied alternate pulses which are to be counted. Details of the circuits are described in Division H3. Specification 827,292 is referred to.
Patent GB-324110-A (GB)
Title: Improvements in and relating to the manufacture of bricks, blocks and the like from loam or earth
IPC: C04B28/32
Filed: 1928-10-18
Abstract: 324,110. Bindphast Products, Ltd., and Greene, J. A. Oct. 18, 1928. Plastic compositions containing oxyclhorides.- Bricks &c. are made by mixing loam or earth with a solution of calcined magnesite and magnesium chloride in equal parts by weight. A small quantity of zinc oxide, alum. or sodium silicate may be added to expedite drying. A glazed surface mav be produced by spraying the interior of the moulds with a solution of celluloid and amyl acetate, or by the use of glass plates.
Patent GB-1385146-A (GB)
Title: Recovery of copper and zinc from low-grade non-ferrous scrap metal
IPC: C22B19/30
Filed: 1973-06-26
Abstract: 1385146 Separation of copper and zinc ANACONDA CO 26 June 1973 [14 Aug 1972] 30275/73 Heading C1A Scrap metal containing large proportions of copper and zinc is leached with ammonium carbonate solution in the presence of oxygen to dissolve the copper and zinc as the metal ammonium carbonates, from which the copper value is removed by treating with a water immiscable organic liquid ion exchanger, preferably a kerosene solution of a hydroxyoxime from which the copper value is removed by eluting with an acid solution from which the copper can be electrowon, the zinc ammonium carbonate remaining in solution being treated with metallic zinc to remove other metal impurities followed by treatment under pressure with CO 2  to precipitate a zinc carbonate which can be calcined to give a pure zinc oxide.
Patent GB-998963-A (GB)
Title: Device for the automatic application of samples in paper chromatography
IPC: B01J20/281
Filed: 1962-08-08
Abstract: 998,963. Paper chromatography apparatus. CESKOSLOVENSKA AKADEMIE VED. Aug. 8, 1962 [Aug. 8, 1961], No. 30296/62. Heading B1X. As shown in Figs. 1 and 2, a device for the automatic application of samples in paper chromatography comprises two heads between which the chromatographic paper 1 is passed, the upper head 2 having a capillary tube 4 attached thereto for supplying the eluate to the paper and the lower head 3 being equipped with an air jet nozzle 15, mounted on a carrier pipe 16, supplying drying air from below to the chromatogaphic paper. The upper head 2 is so made that the mouth of the capillary tube 4 is surrounded by a nozzle 5 through which drying air is led. The air to upper head 2 is supplied by pipe 6 which also carries the head. The intake end of pipe 6 is fixed in a member 7 which is hinged by a joint 8 to a top plate 9 of an air chamber 10. The position of the upper head 2 relative to the paper 1 may be adjusted by means of a set screw 14 mounted in member 7 and abutting against, the top plate. Air is supplied to carrier pipes 6 and 16 from air chamber 10 via openings 11 and 18 respectively, and air to chamber 10 is in turn supplied from chamber 22 through opening. 26 by means of fan 23 driven by' motor 24.
Patent GB-319960-A (GB)
Title: Crankshafts for fluid pressure engines
IPC: F16F15/28
Filed: 1928-10-20
Abstract: 319,960. Douglas Motors, Ltd., and Dixon, F. W. Oct. 20, 1928. Crank shafts. - Balance - weights for crank shafts surround and are secured to the crank webs and serve to retain in position the connecting -rod bigends and their bearings. The weights 6 are of ring form corresponding to the shape of the webs 3, and are secured in position by driving a tapered pin 14 into a slot in the web and thus forcing a curved rib 10 into engagement with a groove 12 in the web. Before the weight 6 is applied, the connecting rod 11 is threaded over the web 3 into position on the pin 9 and the bearing 17 is inserted in halves, the rod' and bearing being retained in position by the weight, which carries a curved projection 19 to assist this action.
Patent GB-1292823-A (GB)
Title: Improvements in and relating to a packaging machine
IPC: B31B3/28
Filed: 1969-10-15
Abstract: 1292823 Making cartons TETRA PAK INTERNATIONAL AB 15 Oct 1969 [30 Oct 1968] 30402/71 Divided out of 1292821 Heading B5D [Also in Division B8]  The subject matter of this Specification is identical with that described in Specification 1,292,821, but the claims relate to the arrangement allowing the mandrel wheel to become disengaged from the drive shaft in the event of the mandrel wheel becoming overloaded.
Patent GB-809045-A (GB)
Title: Improvements in or relating to electrical data processing equipments
Filed: 1956-10-05
Abstract: 809,045. Collating digital data. STANDARD TELEPHONES & CABLES Ltd. (Laboratoire Centrale de Telecommunications S.A.). Oct. 5, 1956, No. 30447/56. Class 106 (1). In an electrical data processing equipment, in which incoming data in the form of discrete signals read by L, Fig. 1, is normally passed to an output circuit E without modification, when a testing device T recognises a predetermined signal the data is amended by adding or substituting signals obtained from a further source P. As described, the reading means L comprises heads TL1-TL5, Fig. 5, for reading characters represented in a 5-element telegraphic type code on a magnetic tape (not shown), the circuit E similarly recording characters on a further tape. The further signals comprise messages each associated with a particular predetermined incoming signal and are stored in an interlaced manner on tracks M6-M10, Fig. 10, of a magnetic drum, the characters in each message being identified by a particular combination of signals in tracks M1-M3 and the beginning and end of a message being marked by a signal in tracks M4 and M5 respectively. In operation, the signals read by TL1-TL5 are amplified and temporarily stored on double-triode bi-stable flip-flops F1-F5; each signal is also further amplified and applied to delay line LR1 to provide delayed signals R1, R2 from separate tappings. The outputs of F1-F5 are normally passed through gates (Fig. 8, not shown) in E to the recording heads for the further tape, such gates being opened under control of signal R1, and F1-F5 being subsequently reset by signal R2 before the next character is read. For a predetermined character, represented by F1 being set (output F1B operative), F5 not set (F5A operative) and at least one at F2-F4 being set, the gates in E remain closed and signal R1 is allowed through gates G1 and G2 (the numerals 2 and 1 indicating the number of control signals which must be operative to open the gate). The G2 output resets flip-flops FL to stop the tape drive DL and causes three flipflops (Fig. 9, not shown) to repeat the identifying combination in F2-F4. The signals read from the drum are similarly set up on ten flipflops, and the combinations from tracks M1- M3 and from F2-F4 are compared by a series of coincidence gates. Upon every comparison agreement after the start signal has been sensed from M4 the character in M6-M10 is passed to the tape recording heads, until the whole message has been read from the drum when the stop signal from M5 which is passed through a gate G9 (not shown) resets the drum read circuits and sets FL, Fig. 5, to start the tape drive DL again. The messages from the drum may comprise interpretative data and justifying indications for a printing device; e.g. the first message, Fig. 10, recorded in positions 1, 11, 21 ... 61 comprises the characters for lettershift, carriage return and line feed followed by the word DATE. Reference is made to ferroelectric recording.
Patent GB-742907-A (GB)
Title: Improvements in or relating to copolymers of trifluorochloroethylene and vinylidene fluoride and method for their preparation
IPC: C08F214/24
Filed: 1953-11-04
Abstract: Copolymers of trifluorochloroethylene and vinylidene fluoride containing from 69 to 80 mols. per cent of trifluorochloroethylene are prepared by polymerizing a mixture of the monomers containing from 75 to 90 mols. per cent of trifluorochloroethylene at a temperature between - 25 DEG  C. and 50 DEG  C. in the presence of a catalyst.  Polymerization may be effected in aqueous suspension in the presence of potassium, sodium or ammonium persulphate and preferably also in the presence of sodium or potassium bisulphite and a metal salt of variable valency such as ferrous sulphate or nitrate, or a mass polymerization system may be used in which the preferred catalysts are trichloroacetyl, trifluoroacetyl, difluoroacetyl, 2,4-dichlorobenzoyl, chloroacetyl, trifluorodichloropropionyl and dichlorofluoroacetyl peroxides. Modifiers such as chloroform, carbon tetrachloride, trichloroacetyl chloride, dodecyl mercaptan and bromotrichloromethane may be incorporated in the reaction mixture. Monomers may be added incrementally or continuously to maintain the monomer composition constant.  The copolymers may be applied as coatings to metal or fabric surfaces in solution in solvents such as di-isobutyl, methyl ethyl and methyl isobutyl ketones, cyclohexanone, methoxy, ethoxy and ethoxy ethoxy ethanols, methyl and butyl acetates and ethyl benzoate. Specification 593,605 is referred to.