baber/WOPTO huggingface dataset:
Patent GB-980923-A (GB)
Title: Process for reducing the particle size of suspensions of solids in liquids
Inventor: GLASSMAN JOSEPH
IPC: B02C17/16
Filed: 1962-01-29
Abstract: 980,923. Grinding pigments &c. IMPERIAL CHEMICAL INDUSTRIES Ltd. Jan. 21, 1963 [Jan. 29, 1962], No. 3229/62. Heading B2A. A process for reducing the particle size of suspensions of solids in liquids comprises agitating the suspension with particulate grinding elements or with a grinding aid comprising an inorganic solid which is insoluble in the liquid in an apparatus comprising a vessel A fitted with fixed coaxial cylinders B and a rotor in the form of a disc H fitted with coaxial cylinders J positioned alternately with the cylinders B. Inlet and outlet pipes K, L are provided respectively for starting materials and finished dispersions. The vessel is surrounded by a cooling jacket C having water-inlet and outlet tubes D, E. When particulate grinding elements are used, fine gauze is placed across the pipes K, L. In this case, the process may be applied to the manufacture of fine dispersions of solids in liquids, especially water, of dispersions of colouring matters such as pigments and disperse dyes and of non-coloured substances such as medicinal and horticultural products, fungicides and pesticides. When stable colloidal dispersions are required, surface active agents are preferably employed. When the suspension is agitated with a grinding aid, the pipes K, L are left unscreened. In this case, it is preferred to use an organic liquid, especially one having a boiling point between about 50 and about 200 ‹C. and easily removable from the finely divided pigment &c. The inorganic solid is preferably a watersoluble salt. Specifications 293,071, 686,234, 810,025, 911,825 and 951,820 are referred to.
Patent GB-538992-A (GB)
Title: Improvements in plant for catalytic reactions
IPC: B01J8/06
Filed: 1940-02-22
Abstract: 538,992. Catalytic apparatus. LUCAS, O. D., and BOUVERI, C. PLEYDELL-. Feb. 22, 1940, No. 3317. Addition to 534,743. [Class 1 (i)] A number of tubular catalyst chambers 12 as claimed in the parent Specification are arranged in a jacket 10 in which a temperature-regulating fluid circulates and an expansion vessel 38 is connected to the jacket so that the jacket is always full of liquid and the expansion vessel is never full irrespective of the temperature of the liquid. The expansion vessel may be provided with tubes through which air is blown and the temperature may be thermo-statically controlled. In a modification each catalyst chamber has its separate jacket. Several expansion chambers may be used and may be interconnected. Specification 398,492, [Group XIII], is referred to.
Patent GB-1046524-A (GB)
Title: Improvements in pump type liquid spraying devices
IPC: B05B11/00
Filed: 1964-01-28
Abstract: 1,046,524. Reciprocating pumps. COOK CHEMICAL CO. Jan. 28, 1964 [Oct. 8, 1963], No. 3488/64. Heading F1A. A reciprocating pump 10 is mounted in a container cap 24, the pump plunger 16 extending out of the pump body 12. The plunger is finger-operated and includes a discharge orifice 46 behind which lies a swirl chamber to atomize the spray. The orifice location and the pump stroke are such that the emerging spray does not impinge on a saddle 64 on the plunger 16 or on a collar 22. The collar 22 has an internal screw-thread 54 which engages a thread 48 on the plunger head 30. A flange 68 abuts an edge 52 to form an air-tight seal for the discharge orifice 46. A cap may be fitted over the head 30 when screwed down.
Patent GB-854609-A (GB)
Title: A method of making contractable cores
IPC: B22C9/10
Filed: 1959-02-02
Abstract: 854,609. Cores. DOW CHEMICAL CO. Feb. 2, 1959 [Feb. 6, 1958], No. 3578/59. Class 83 (1). A mould-part or core is made from a hollow metallic form having apertures therein and covered with a ceramic or metallic sleeve of woven strands, said sleeve diametrically contracting on being subjected to lengthwise stretching, and being coated with a refractory mould-wash so as to cement together the fibres of the sleeve into a rigid structure. The hollow form may be copper, mild or stainless steel, brass, aluminium or magnesium tubing, and the strands tinned copper, stainless steel, common soda-lime or borosilicate glass. The mould-wash may be a slurry of clay, e.g. bentonite mixed with fine sand or refractory oxide or silicate, such as zirconium silicate. An adhesive coating such as shellac may be applied before the mould-wash. The hollow form may be filled, before casting, with a bondable particulate material, e.g. resin-coated sand, and heated. Reference has been directed by the Comptroller to Specification 826,340.
Patent GB-439267-A (GB)
Title: Improvements in and relating to hydraulic couplings
IPC: F16D33/18
Filed: 1935-02-04
Abstract: 439,267. Hydraulic transmission of power. BROSE, W., 9, Gabriel Seidlstrasse, Bremen, Germany. Feb. 4, 1935, No. 3583. Convention date, March 6, 1934. [Class 69 (ii)] Hydraulic couplings are cooled during empty running by admitting a quantity of liquid smaller than the quantity required during normal operation to replace leakage but sufficient to produce a cloud which carries off the windage heat. In the form shown, the filling valve e and the emptying ring fare mechanically interconnected ; in a modification, the interconnection employs a pressure transmitting medium, and a spring tends to open the valve e. Specification 414,979 is referred to.
Patent GB-1127321-A (GB)
Title: Improvements in or relating to faced hardboard
Inventor: WHITWELL GODFREY FRANCIS
IPC: B27N3/06
Filed: 1965-01-27
Abstract: 1,127,321. Laminating. BAKELITE XYLONITE Ltd. 27 Jan., 1966 [27 Jan., 1965], No. 3661/65. Heading B5N. A process for the manufacture of shaped, faced hardboard sheets comprises bonding together a synthetic resinous sheet material and a hardboard sheet, both of which sheets are deformable under the action of heat and pressure, with an adhesive which allows relative movement between the sheets to take place during a subsequent forming stage employing heat and pressure, shaping the bonded sheets in the forming stage, and causing or allowing the adhesive to harden. As described, the adhesive may be any suitable impact adhesive, based on rubber or plastics, e.g. polyvinyl ethers, and is preferably Evostik 550, Roll-a-matic 302, or Bostik 1440 (Evostik, Bostik are Registered Trade Marks). The adhesive is preferably applied as a hot spray and may be of a kind which softens under heat. The synthetic resinous sheet is preferably a laminate formed by moulding under heat and pressure an assembly of thermosetting-resin-impregnated paper or fabric sheets, and may be a high pressure laminate comprising core sheets of phenolformaldehyde resin-impregnated paper and a decorative face sheet or sheets of melamine formaldehyde resin impregnated paper. In the method of carrying out the process a hardboard sheet and a laminate are hot sprayed with adhesive and the solvents in the adhesive allowed to evaporate before the hardboard sheet and laminate are bonded together by passing them between nip rolls. The faced hardboard sheets so produced are shaped either by contacting the hardboard with a heated mandrel for an initial dwell time to render it deformable, shaping the faced hardboard against the mandrel, and cooling the shaped hardboard sheet by the application of cold water, or by contacting the laminate with a cool mandrel and the hardboard with a heated pressure roller or beam for an initial dwell time and then shaping the hardboard sheet by pressing it against the mandrel by moving the roller or beam, the shaped hardboard being cooled as before. In this latter method, in which the hardboard is on the outside of the curve formed when the laminate is shaped, it is preferably treated with a liquid detergent, e.g. Teepol (Registered Trade Mark) before shaping. The faced hardboard sheets produced by the process can be used as work tops or in kitchen or television cabinets.
Patent GB-1359587-A (GB)
Title: Sodium percarbonate crystals
IPC: C01B15/055
Filed: 1972-01-26
Abstract: 1359587 Alkalimetal persalts IMPERIAL CHEMICAL INDUSTRIES Ltd 15 Jan 1973 [26 Jan 1972] 3680/72 Heading C1A Sodium percarbonate is produced by crystallizing from an aqueous solution which contains one or more water-soluble polyelectrolytes, preferably in an amount of at least 10 p.p.m. by wt. of the percarbonate to be formed. Many polyelectrolytes are specified and those exemplified are polymers of methacrylic acid and/or acrylic acid or a salt thereof.
Patent GB-752871-A (GB)
Title: Improvements in and relating to optical apparatus
Inventor: BARLOW KNIGHTLEY TREVOR
IPC: G03B21/56
Filed: 1952-02-12
Abstract: 752,871. Television. BERWICK DEVELOPMENTS, Ltd. Feb. 6, 1953 [Feb. 12, 1952; April 21, 1952], Nos. 3688/52 and 9974/52. Class 40 (3). [Also in Group XX] A filter for use in conjunction with a monochrome image, such as a television image on the screen of a cathode-ray tube, in order to render the image more attractive by the addition of colour, comprises a transparent body providing a colour pattern composed of minute, discrete, differently coloured areas the integrated optical effect of which is a much larger pattern distributed irregularly over the filter area. In one construction, Fig. 1, the filter is composed of an assembly of three transparent sheets 10, 11 and 12 coloured respectively blue, yellow and red and each perforated with a pattern of holes as shown in Fig. 3. The filter is completed by a transparent base 14 and cover 16. The coloured sheets are assembled with the rows of holes inclined at small angles whereby the filter presents a. mosaic of differently coloured areas the integrated optical effect of which is a much larger pattern but one which is irregular due to departures from regularity in the perforations. In an alternative construction, Fig. 5 (not shown), the filter is combined with a uniformly coloured base formed of a thin cell containing a dyed liquid. Once a filter has been produced as described it may be reproduced by means of a colour photographic process to give a colour transparency. The filter may be suspended in front of the cathoderay tube screen, for which purpose straps 18 carrying hooks are provided. Alternatively, light coloured by the filter may be thrown on to the front or rear of the screen by a projector.
Patent GB-569469-A (GB)
Title: Method of removing inhibitors
IPC: C07C7/11
Filed: 1942-03-19
Abstract: Butadiene is freed from a normally solid polymerization prohibitor such as phenyl-b -naphthylamine by bubbling it up through a body of high boiling point solvent for the inhibitor, leading off the vapours of the purified butadiene from the surface of the body of liquid and condensing.  The solvent may be dibutyl citrate, dibutyl phthalate, tricresyl phosphate, butyl stearate and similar esters used as plasticizers for synthetic resins.
Patent GB-1382620-A (GB)
Title: Hilary childs toy or plaything
IPC: A63H33/30
Filed: 1972-01-26
Abstract: 1382620 Manipulative toys; finger exercising apparatus HILARY PAGE "SENSIBLE" TOYS Ltd 26 Jan 1973 [26 Jan 1972] 3700/72 Headings A6M and A6S A manipulative toy which develops the wrist, finger and thumb movements of a child comprises a plastics, threaded rod R upon which can be screwed at least two different plastics components A, B, C of different physical form. Each component A, &c has a single turn, interrupted internal thread to be engaged upon the rod. Alternatively, components having two colinear wings, or any number of wings arranged in star fashion, may be provided.
Patent GB-395434-A (GB)
Title: Improvements in sound film printing machines
IPC: G11B7/28
Filed: 1932-02-08
Abstract: 395,434. Projection-printing of soundfilms. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and COCKE, K. J. R., 46, Dale Street, Rugby. Feb. 8, 1932, No. 3727. [Class 40 (ii).] In apparatus for printing by projection from a negative sound-record film on to a positive blank with change of scale, the two films being driven at speeds, the ratio of which equals the ratio of enlargement or reduction, flywheels having an inertia sufficient to eliminate the ripple due to sprocket or gear tooth action but insufficient to affect the variation of the mean speed, are associated with each film. The films may be fed through the machine by sprockets geared together to run at the desired speeds or by coaxial sprockets having different diameters and between the sprockets and the gates the films pass over rollers to which the flywheels are coupled, idler pulleys being provided to hold the films in contact with the rollers.
Patent GB-1379863-A (GB)
Title: Pulse compression radar systems
IPC: G01S13/28
Filed: 1973-01-25
Abstract: 1379863 Radar MARCONI CO Ltd 15 Nov 1973 [25 Jan 1973] 3747/73 Heading H4D A receiver for a radar system includes a hard limiter interposed between two dispersive devices, each of which is operative to compress in time received frequency swept signals. A source 16 of clock pulses in transmitter 10, feeds an impulse generator 18 coupled to a dispersive delay line 20. The output of line 20 is a long frequency swept pulse and gate 22, under the control of source 16, limits the duration of the pulse to a required value (20Ás. in the embodiment). The pulses are fed to amplifier 24, frequency changer 26, circulator 12 and aerial 13. The received echo pulses are fed to frequency changer 28 and amplifier 30 of receiver 13. The amplified pulses are then fed to dispersive delay line 32, hard limiter 34, dispersive delay line 36 and weighting filter 38 (the latter reducing range side lobes). Detector 40 provides a video output after suitable amplification and processing. Weighting filter 38 may be placed between limiter 34 and delay line 36. It is stated thatuse of dispersive delay line 32 allows a choice in the receiver false alarm rate (due to noise &c.).
Patent GB-577616-A (GB)
Title: Improvements relating to alternating electric current rectifiers of the dry plate type
IPC: H01L21/12
Filed: 1944-03-02
Abstract: 577,616. Asymmetrically-conducting resistances. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., THOMPSON, L. E., and JENKINS, A. March 2, 1944, No. 3913. [Class 37] [Also in Group II] The counter-electrode, or the outer layer of counter-electrode metal where two layers are used, in a rectifier, is composed partly or wholly of one or more alkali-metals applied as by sputtering or spraying. Potassium or sodium is preferred, to an amount of 0À5 per cent. in alloy with tin and cadmium. Specification 534,043 is referred to.
Patent GB-1500807-A (GB)
Title: Ester product
IPC: C11C3/04
Filed: 1975-01-29
Abstract: 1500807 Lubricants UNILEVER-EMERY NV 29 Jan 1975 [31 Jan 1974] 3932/75 Heading C5F [Also in Divisions C2 and C3] Lubricants comprise a mixed ester having an acid value of below 10 derived from (a) 5-35% by weight of a triglyceride derived from a C 12-22  monocarboxylic acid, (b) 60-85% by weight of polyethylene glycol having an average molecular weight of 200-1000, and (c) 1-20% by weight of a C 2-12  mono- or di-carboxylic acid. The mixed ester may be used neat, but is water-soluble and may be used in solution. Aqueous solutions preferably contain 0À1 to 25% by weight of the mixed ester. The examples describe preparing mixed esters from (a) soybean oil, coconut oil, linseed oil, palm oil, castor oil or tallow, (b) polyethylene glycol and (c) azelaic acid, iso- or tere-phthalic acid, dodecanedioic acid, p-tert-butylbenzoic acid or pelargonic acid. Conventional additives may be present, and the esters can be mixed with known lubricants, e.g. mineral oils.
Patent GB-356087-A (GB)
Title: Improvements in or relating to means for gathering and handling molten glass
IPC: C03B7/20
Filed: 1931-02-07
Abstract: 356,087. Gathering molten glass. BRANCART, Y., Verrerier de Fauquez, RonquiÞres, Belgium. Feb. 7, 1931, No. 3959. Convention date, Feb. 13, 1930. [Class 56.] A ladle for gathering molten glass is provided on its handle with means for controlling apparatus by which it is lifted and transported. The ladle may be suspended by a chain or rack from an overhead crane which is driven preferably by electric motors, and the switches for starting, stopping, and reversing the motors are controlled by relay switches and by switches mounted on the handle of the ladle. In the construction shown in Fig. 4, the ladle 7 is supported by a carriage 21 propelled bv an electric motor 23, and a second electric motor 28, secured to the carriage, raises or lowers a screwed shaft 25 which supports the shaft of the ladle. Two contact boxes 9, 10, secured to the handle 8 of the ladle, are provided with contact switches 12, 12<1> and 14, 14<1> which control the motors 23, 28. Thus the workman can operate the motors without moving his hands from the handle 8, and he is only required to guide and tilt the ladle.
Patent GB-1294262-A (GB)
Title: Improvements in conically tapering poles
IPC: E04H12/02
Filed: 1971-02-05
Abstract: 1294262 Tapered tubes SPIRALO HOLDING AG 5 Feb 1971 4040/71 Heading F2P [Also in Division E1] A lamp or telegraph post 1 comprises a conically tapered helically seamed tube 2, the seam being cold worked filled with foamed polystyrene or polyurethane and glass wool or fibre bonded or adhered to the inner surface of the tube. The tube is made of steel or plastics. The filling is preferably moulded within the tube but a preformed tapered artificial rod may be coated with a bonding agent and pushed into the helically seamed tube. A base-plate 7 is welded at the lower end of the post and tubes for carrying cables are moulded within the core and communicate with a junction box mounted on the outer surface of the,post.
Patent GB-1220561-A (GB)
Title: Process for the production of textile products which are coated with polyurethanes
Inventor: REINER MARTIN
IPC: D06N3/00
Filed: 1969-01-24
Abstract: 1,220,561. Ornamenting. FARBENFABRIKEN BAYER A.G. 24 Jan., 1969 [25 April, 1968], No. 4063/69. Heading B6G. [Also in Division B2] Polyurethane-coated textiles produced by coating the napped face of a 4-bar warp knitted fabric and subsequently graining the coated fabric by a mechanical treatment (see Division B2) are decorated by (1) applying printing, (2) spraying with differently coloured solutions of high molecular weight compounds or dyes, or (3) applying pre-printed ornaments on special supports e.g. grained transfer paper. They may be backed with foamed plastics and provided with decorative quilted seams.
Patent GB-595637-A (GB)
Title: Medicinal capsule making machine
IPC: A61J3/07
Filed: 1945-02-20
Abstract: <PICT:0595637/IV/1> <PICT:0595637/IV/2> <PICT:0595637/IV/3> <PICT:0595637/IV/4> Strip gelatine is formed into a tube aroun a pipe, medicament is introduced through the pipe into the tube, and the tube is sheared to seal the medicament in the tube and form sealed capsules.  Fig. 1 shows an arrangement in which liquid gelatine is cast from tanks 23, 24 on to endless belts 21, 20, stripped therefrom in strip form S and carried by endless belts 115, 116 to tube-forming rolls 46, 47 and shearing rolls 57, 58.  Rolls 51, 52 press the strips into peripheral grooves 48, Fig. 9, in the rolls 46, 47 to form half-tubes, the strips being temporarily sucked on to the rolls by vacuum conduits 91.  The half-tubes then pass between the rolls 46, 47, Fig. 10, where they are sealed together, the marginal portions 56 being cut away by flanges 49, 50 and led off by guides 145, Fig. 1.  Between the rolls 46, 47 extend pipes 55, 55a which terminate in an enlarged wedge-shaped head 150, Fig. 4.  The tube slides over this head (which excludes air from the capsules) into the nip of the shearing rolls 57, 58, where it is bulged out with medicament under pressure <PICT:0595637/IV/5> from the pipes 55, 55a and cut into capsules by dies D.  The capsules are held in the die cavities 76 by vacuum in conduits 142 and are later blown out of the cavities 76 by fluid pressure through the same conduits.  Surplus material 74 is received in auxiliary cavities 75 surrounding the dies, and is led off as a foraminous ribbon.  Fig. 8 shows modified shearing rolls 98, 99, comprising slidable rolls 98, 99, comprising slidable plungers 102, spring-pressed outwardly and controlled by a cam track 107. Just after a charge of liquid has been injected into the tube to the left of a pair of plungers, the plungers pinch the tube as at 200 and seal off the liquid.  The plungers are then retracted and the capsule punched out.  Here the medicament feed is through a single pipe 109.  Details:-The tanks 23, 24 may have an overflow dam, to maintain constant the pressure on the gelatine passing under the doctor blades 27, 28, which may have a micrometer adjustment.  Water coolers are disposed under the belts 20, 21, and water heaters under the belts 115, 116.  The gelatine passes through three compartments 138, 139 and 140, which are hot, cold and hot respectively.  Between the two belts the upper strip S is twisted so that its smooth side will lie outside in the formed capsule.  As the strips pass through the machine, they stretch, and mercury switches are provided which stop the belts 20, 21 when the strips are slack and allow the belts to resume when the slack has been taken up, Fig. 12 (not shown).  Lubricating means 44 are disposed in contact with the belts, and similar means 43, 43a is associated with flexible wick members 42 which seal compartments 138, 139, 140.  There may be only one pipe 55.  Rotary brushes clean rolls 57, 58.  Three tubes may be formed simultaneously from one strip.
Patent GB-866727-A (GB)
Title: Liquid separation apparatus
IPC: B01D17/02
Filed: 1958-02-10
Abstract: 866,727. Filters ; gravity-separation apparatus. MULLER, J. Feb. 10, 1958 [March 8, 1957 ; Dec. 10, 1957], No. 4265/58. Class 46. Liquid (e.g. a hydrocarbon) containing a denser liquid (e.g. water) and solid contaminants is introduced at 8, Fig. 1, and flows to the interior of a number of interchangeable coalescing assemblies 6a located in perforate tubes 12 between plates 4, 10. Each assembly 6a, Fig. 2, consists of a stack of cartridges 6 (e.g. as shown in Fig. 8) within a foam-breaking sheath 26 of synthetic, metallic or like fabric. Solid contaminants are removed and denser liquid is coalesced and flows to a cup 20, whilst the lighter liquid passes through a cloth 19 consisting of one or more metallic, synthetic or vegetable materials, where remaining foam is condensed, and through interchangeable cartridges 25b, where impurity-traces are retained, to an outlet 25a. Each coalescing cartridge may consist of two discs 27, Fig. 8, of compressed, agglomerated, moulded or formed porous (e.g. fibrous) materials, clamped at the edges and separated by two supports 49 (e.g. of plastic material), having conical apertures, and by two rings 37, 38 having castellated edges 39 and assembly pins (not shown.) Adjacent cartridges are separated by annular members 29 having radial and circular ribs. Alternatively the discs 27 are arranged singly and slightly coned all in the same direction, and are separated by ribbed discs and castellated rings. In Figs. 13 and 14 (not shown) the sheath 26 is dispensed with and the assembly is arranged eccentrically within and near the bottom of a cylindrical casing perforated at the bottom only. A condenserdeflector, (like 19, Fig. 1), is inserted at the exit end of the cylinder. In Fig. 15 each assembly consists of at least two candles 64 in a casing 73 perforated at the bottom only, the liquid entering the lower candle, consisting of coarselygrooved discs of known type 65, for coalescing, and thereafter passing inwards through the upper candle, of finely-grooved discs 66, for filtration, emerging at 76. Each liquid outlet may embody a compensated valve 77, 78, Fig. 17, the valves being operated reciprocally by a float 79 through linkage which includes a spindle 80, extended outside the apparatus and carrying an adjustable counterweight 84 on a lever 83 which may be manually operated and a pointer 81 moving over a scale 82.