baber/WOPTO huggingface dataset:
Patent GB-1215993-A (GB)
Title: Vibratory screening separator
IPC: B07B1/08
Filed: 1968-05-13
Abstract: 1,215,993. Vibrating screen separator. SWECO Inc. 13 May, 1968 [22 May, 1967], No. 22511/68. Headings B1D, B2H. A vibrating screen separator, for slurries or for wet or dry classification of powder, comprises a flat, annular screen 42 clamped in a housing 17, 19, 47, which is mounted on springs 11 and vibrated by motor 12 with outof-balance weights 13, 14, the underside of the screen being cleaned by jets of steam, hot water or solvent directed from nozzles 55 which extend from radial arms 53 supported by central manifold 52, the assembly 52, 53, 55 being unconnected with the vibratory assembly. In Fig. 1, material is delivered by tangential inlet 56, oversize material passes inwards across the screen and down funnel 35, and nozzle assembly 52, 53, 55 is rotated on coupling 51 by the reaction forces of fluid discharged from the inclined nozzles 55. In Fig. 4, not shown, funnel 35 is replaced by shoot (70) which is separated from the screen, and the nozzle assembly is fixed. In Fig. 5, not shown, the material is delivered by pipes (117) near the screen centre, and oversize material is discharged from the outer periphery of the screen. Prior to use, the screen 42 is tensioned by extending the pistons of pneumatic cylinders 30, which support but are not joined to the screen. In Fig. 5 the cylinders bear on a polyurethane ring, integral with the screen.
Patent GB-366052-A (GB)
Title: Improved process for obtaining sulphur from masses containing sulphur, more particularly from gas purification masses
IPC: C01B17/033
Filed: 1930-07-25
Abstract: In a process for extracting and refining sulphur from raw materials, e.g. gas purification materials, by the use of organic solvents, an amount of hot solvent insufficient for complete solution is employed and the sulphur is fused and removed in the liquid state together with the solvent.  Sulphur remaining in the raw material is extracted by a second treatment with the hot solvent and the mass again employed for gas purification.  The sulphur and solvent separate in two layers on standing and the liquid sulphur is drawn off, the solvent being used for the treatment of further raw material.  As solvents, benzene, benzines, light tar oil and mineral oil products are employed, increased pressure being used with low-boiling hydrocarbons.  The crude sulphur so separated is purified by heating with bleaching clays and such solvents as dissolve sulphur to any extent only at raised temperatures, e.g. benzene and toluene.  An example is furnished.
Patent GB-355362-A (GB)
Title: Improvements in or relating to the manufacture of cementitious materials
IPC: C04B2/00
Filed: 1930-04-16
Abstract: Catalytic agents for the production of organic substances, as described in Specification 353,467, are produced by heating mixtures of zinc oxide (or a substance yielding it) with an alkaline earth oxide (or a substance yielding it) so as to produce a product having hydraulic properties, which preferably after grinding, is mixed with water and sets like a cement.  The heat treatment may be at 1200-1800 DEG  C. for mixtures of calcium oxide and zinc oxide, and 500 DEG  C. for mixtures of zinc oxide and magnesia.  The mixtures may be made by precipitation of mixtures of salts of the constituents, such as chlorides, nitrates, or sulphates.  An example describes the production of a catalyst from mixed oxides precipitated from calcium and zinc nitrates, the calcination being effected at 1450-1500 DEG C. in an oxidizing atmosphere.ALSO:Catalysts for the production of organic substances, particularly for the production of acetone from mixtures of steam with acetylene or aliphatic alcohols containing at least two carbon atoms or their derivatives such as esters or aldehydes, as described in Specification 353,467, are produced by heating mixtures of zinc oxide (or a substance yielding it) with an alkaline earth oxide (or a substance yielding it) so as to produce a product having hydraulic properties, which, preferably after grinding, is mixed with water and sets like a cement.  The heat treatment may be at 1200-1800 DEG  C. for mixtures of calcium oxide with zinc oxide, and 500 DEG  C. for mixtures of magnesia and zinc oxide.  The mixtures may be made by precipitation of mixtures of salts of the constituents, such as chlorides, nitrates and sulphates. An example describes the production of a catalyst from mixed oxides precipitated from calcium and zinc nitrates, the calcination being effected at 1450-1500 DEG  C. in an oxidizing atmosphere.ALSO:Cement-like substances suitable for use as catalysts or for other purposes are made by heating mixtures of zinc oxide (or a substance yielding it) with an alkaline earth oxide (or a substance yielding it) so as to produce a product having hydraulic properties, which, preferably after grinding, is mixed with water and sets like a cement.  The heat treatment may be effected at 1200-1800 DEG  C. for a mixture of zinc and calcium oxides and at 500 DEG  C. for a mixture of zinc and magnesium oxides.  The mixtures may be made by precipitation of mixtures of salts of the constituents, such as chlorides, nitrates, or sulphates.  An example describes the production of a cement-like substance from mixed oxides precipitated from calcium and zinc nitrates, the calcination being effected at 1450-1500 DEG  C. in an oxidizing atmosphere. Specification 353,467 is referred to.
Patent GB-1519084-A (GB)
Title: Chloroprene polymer @atexes
IPC: C08C1/14
Filed: 1976-06-01
Abstract: 1519084 pH Adjustment of chloroprene polymer latex; coagulation thereof E I DU PONT DE NEMOURS & CO 1 June 1976 [2 July 1975] 22642/76 Heading C3L The pH of an alkaline latex of a chloroprene polymer is adjusted to 5 to 6À5 by adding a combination of a strong and weak acids thereto, the mixture containing 10 to 80 mole per cent of the strong acid, the strong acid being oxalic acid or an organic sulphonic acid and the weak acid being a suitable C1-6 carboxylic acid, i.e. of pKa 3À5 to 5À0. The resulting latex is then coagulated in conventional manner on a freeze drum, followed by washing and drying. In Examples, polychloroprene latexes are treated with acetic acid/oxalic acid/sodium salt surfactant or acetic acid/toluene sulphonic acid/ xylene sulphonic acid/dodecylbenzene sulphonic acid and latexes coagulated, to provide products of lower alkaline reserve.
Patent GB-825684-A (GB)
Title: Optical projection apparatus
IPC: G03B21/20
Filed: 1957-07-17
Abstract: 825,684. Optical-projection systems. ASKANIA-WERKE A. G. July 17, 1957 [July 26, 1956], No. 22674/57. Class 97(1) A system for projecting a pattern of reference lines including one or more circles, comprises a diaphragm having a corresponding pattern of light transmitting apertures smaller in area than the. opaque portions, an optical element having toroidal zones to focus light in the vicinity of the apertures and a lens to project an image of the diaphragm. In the form shown the diaphragm 4 has a central aperture 4<SP>1</SP> with concentric circular slits 4<SP>11</SP>, 4<SP>111</SP> and the condenser system comprises a member 3 having a spherical portion 3<SP>1</SP> with concentric toric portions 3<SP>11</SP>, 3<SP>111</SP>, for concentrating light from the source 1 into these apertures. The member 3 may be replaced by an opaque plate having apertures in a configuration corresponding to those in the diaphragm 4, each aperture having a reflecting, part-paraboloidal crosssection.
Patent GB-1309664-A (GB)
Title: Electrostatic pinning of dielectric film
IPC: B29C48/08
Filed: 1970-05-11
Abstract: 1309664 Electrostatic pinning of films E I DU PONT DE NEMOURS & CO 11 May 1970 [12 May 1969 23 March 1970] 22676/70 Heading B5B [Also in Division H1] Apparatus for electrostatic pinning of a thermoplastic dielectric web or film to a chilling drum in manufacture comprises (Fig. 1) a hopper 11 from which film is extruded at 10 to contact the periphery of a moving quench drum 12 at point 15, an electrode rod 13 of, e.g. steel, tungsten, nickel iron alloy, nickel copper alloy, copper, brass, or stainless steel being positioned transversely of the drum over point 15 and connected to a direct high voltage source. A second earthed electrode proximate to the first is enclosed in a dielectric sheath 17 and electrostatic charge is imposed by ionization on the film to cause adherence to the drum; the first electrode being nearer to the second than to the moving film. In a modification (Fig. 2, not shown) the second electrode is arcuate about the first electrode as centre and positioned further from the web than the latter electrode and insulated therefrom by an arcuate dielectric insulant, while a portion of the arcuate second electrode may overlap the dielectric (Fig. 4, not shown). In a further modification (Figs. 9, 10) the electrodes 14, 18 and insulants 17, 19 are positioned to intersect, e.g. 50% of the straight linear paths between electrode 13 and the extruded web or film. The second electrode and the chilling surface are earthed and the voltage source is 2 to 30 KV. A gas stream may be directed through the electrodes to surround the first electrode and to increase the discharge current, without spark breakdown (Figs. 3, 4, 5, not shown) and the gas may be tested for suitability as described in Specification 1,309,449. A melt-cast film of polyethylene terephthalate is exemplified. The gas may be nitrogen, helium, dry air, oxygen, dichloro tetrafluoroathene, dichlorodifluoro methane, carbon tetrachloride in dry air or oxygen; tetrachloroethene or acetone vapour in nitrogen.  The electrodes may be normal or stainless steel, tungsten, nickel - iron, nickel - copper, copper, brass.
Patent GB-428843-A (GB)
Title: Improvements in or relating to the adjustment of carburettors
IPC: F02M19/01
Filed: 1933-08-14
Abstract: 428,843. Spray carburetters. NEESEN, A., 40A, Cecilienstrasse, Zehlendorf-Mitte, Berlin. Aug. 14, 1933, No. 22702. Void [Abridged as open to inspection under Sect. 91 of the Acts, Feb. 27, 1934]. Drawings to Specification. [Class 7 (iii)] To adjust a carburetter to a given engine, the engine is driven mechanically without the carburetter being attached, and the quantity of air drawn in and the vacuum in the induction pipe measured at various speeds. The quantity of fuel required to produce a desired fuel-air ratio is then calculated, and from the measured vacua the fuel nozzle required to produce this quantity can be selected to a first approximation. The carburetter is then attached to the engine and the fuel nozzle connected to a manometer. The engine is again driven mechanically and the quantity of air drawn in and the suction at the nozzle measured at various speeds. The quantity of fuel which would have been delivered through the nozzle is calculated and compared with the quantity required to produce the desired fuel-air ratio. Variations between these quantities are corrected by varying the cross-section of the air inlet, supplying additional air, altering the cross-section or shape of the fuel nozzle, or the height through which the fuel is raised. The method is also applicable to carburetters in which the fuel is supplied under pressure or from a float chamber, and the tests may be made with any setting of the throttle valve. This method also allows the effect of various temperatures on the output of the engine to be investigated.
Patent GB-640387-A (GB)
Title: Process and apparatus for continuously producing french fried foods
IPC: A23L19/18
Filed: 1947-08-15
Abstract: 640,387. Endless conveyers and elevators. FOSTER, S. K. Aug. 15, 1947, No. 22781. Convention date, Aug. 17, 1946. [Class 78 (i)] [Also in Groups I and VI] A machine for continuously producing fried foods, including French fried potatoes, comprises a potato sizing and cutting device, Fig. 7 (not shown), a deep fat vessel 34 with thermostatically controlled electric heating 43, 44, 45 and conveyers 35, 46 with wire baskets 36 and resilient mesh baffles 55 respectively. After washing in vessel 27, the slabs are drained off in the conveyer 35 and are carried over into the frying vessel 34 where conveyer 46 carries the slabs through and out of the heated fat. Food requiring different cooking times may be inserted at marked points A, B, C, D and manually operated variable-speed controls are provided for the conveyer drives.
Patent GB-1456514-A (GB)
Title: Substituted dialkyl 2-oxopropylphosphonates
IPC: A61K31/16
Filed: 1973-11-07
Abstract: 1456514 Phosphonates PFIZER Inc 7 Nov 1973 [8 Nov 1972] 22858/76 Divided out of 1456512 Heading C2P Novel phosphonates of the formula wherein Ar is phenyl, halophenyl, trifluoromethylphenyl, biphenylyl, C 1-6  alkylphenyl, C 1-6  alkoxyphenyl, 3,4 - dimethoxyphenyl, 3,4,5 - trimethoxyphenyl, 3,4 - methylenedioxyphenyl, or 1- or 2-naphthyl; R is C 1-6  alkyl; and m and n are 0 to 3 with the proviso that the sum of m and n does not exceed 3 are prepared by reacting esters of the formula wherein R<SP>1</SP> is C 1-6  alkyl, with the appropriate dialkyl methylphosphonates.
Patent GB-147372-A (GB)
Title: Improvements in or relating to apparatus for lifting heavy loads by means of compressed fluid
IPC: B66F1/00
Filed: 1919-09-17
Abstract: 147,372. Sommerstad, T. O. Sept. 17, 1919. Jacks.-In fluid-pressure jacks lifting is effected by the piston and cylinder alternately and the load is carried by the cylinder when the jack is inoperative. In one form a cylinder is divided by a partition c into two chambers in which work pistons d, e connected by a rod f. Forked supports g, h are placed between the cylinder and the load and ground, respectively. In these supports slide plates i, k which take the thrust of the pistons. Pressure fluid is admitted first through the pipe 1, Fig. 6, and the load is raised to the position shown in Fig. 7. A forked support g<1> is next placed between the support g and the cylinder, and a plate k is inserted below the piston e. Pressure fluid is then admitted through the pipe 2, and the load is raised through another step, Fig. 8. The plate i is then transferred from the support g to the support g<1>, and a support h' is placed between the cylinder and support h. Pressure fluid is then admitted through the pipe 1 and the series of operations is repeated. In another form, a single piston with rods on each side is used, and pressure fluid is directed to the top and underside of the piston alternately.
Patent GB-828317-A (GB)
Title: Improvements in or relating to fastener driving tool and fastener assembly for use therein
IPC: B25C1/02
Filed: 1956-07-25
Abstract: 828,317. Nail driving tools. OLIN MATHIESON CHEMICAL CORPORATION. July 25, 1956 [Aug. 19, 1955], No. 22975/56. Class 89(3) A fastener driving tool includes an elongated guiding element 121 having a guiding bore 113 for receiving the fastener 125 and a plunger 116 guided in said bore, the bore 113 being enlarged at the front of the tool by the provision of a tapered counterbore 111 to receive and frictionally hold a rigid washer 129 forming part of the fastener assembly. The plunger 116 is releasably secured in a drive rod 115 telescoping within a tube 102 within which the guiding element 121 is releasably retained. The plunger 116 and guide element 121 are replaceable by parts of different dimensions adapted to receive fasteners of different diameters and/or to adapt the tool to drive fasteners to different depths of penetration. The tube 102 has attached thereto a hand guard 103 and a front platen 105 and is surrounded by an outer tube of rubber. A spring 104 has at one end a detent 110 which engages 'a groove 112 in the rod 115 to releasably retain the rod 115 in its retracted position, and at the other end a detent 106 which can engage one of the grooves 135 in the guiding element 121 to releasably retain the guiding element in forward and retracted positions.
Patent GB-223374-A (GB)
Title: Improvements in and relating to the utilisation of tidal energy
IPC: F03B13/26
Filed: 1924-05-13
Abstract: 223,374. Todd, J. May 13, 1924. Tidal energy, utilizing.-The apparatus comprises a main impounding reservoir B<1>, Fig. 1, auxiliary reservoirs D, E supplied through inlets H having gates h<1>and means h for trapping waves, spray &c., and tail-water reservoirs C, F. Where available, inland water may be admitted to the auxiliary reservoirs at d. An elevated trough K, Fig. 2, supported above part of the reservoir B' and connected with hydraulic motors at J, is supplied with water drawn from the reservoir by injectors operated by water supplied from the auxiliary reservoirs. Outside the gates b of the main reservoir are other groups of motors J<2>, J<3> operated by the rising tide or the escape of tail-water from the reservoirs C, F. Motors J<1> utilize the surplus energy of spring tides and the motors J<1>, J<2>, J<3> are utilized to operate pumps delivering into the auxiliary reservoirs.
Patent GB-813103-A (GB)
Title: Velocity-modulation electron tube apparatus
Inventor: NELSON RICHARD BURTON
IPC: H01J25/06
Filed: 1955-08-10
Abstract: 813,103. Velocity modulated tubes. VARIAN ASSOCIATES. Aug. 10, 1955, No. 23106/55. Class 39(1). In a velocity modulation tube the cathode 11, Fig. 5, is heated by electron bombardment from a coiled filament 12, the leads and supports 14, 14<SP>1</SP> for the filament 12 being semifrusto-conical, having over-lapping but non- contacting edges, and forming a heat shield. The cathode button 11 is concave and has a conical support 21. The cathode is followed by a concave amplitude modulating grid 29, the outer tubular support for grid 29 is bent over to form a focusing electrode. The frusto-conical cathode support and semifrusto-conical filament supports of molybdenum are connected to and supported by "Kovar" (Registered Trade Mark) supports and annular terminals 22, 17, 17<SP>1</SP>, Fig. 4. Cathode support 19 is of tantalum and 23 is a heat shield. The grid and focusing electrode have ceramic ring support 24, and the grid is carried from the focusing electrode by tantalum sleeve 30. The resonator block carries two conical polepieces 48, 54, which surround flared throats 37, 27 shaped to follow the beam contour. The polepieces have extensions energized by coils, Fig. 1 (not shown). The construction is used in a " floating kidney " velocity modulation tube, other aspects of which are claimed in Divisional Specifications 813,104, 813,105 and 813,106.
Patent GB-442541-A (GB)
Title: Conical roller bearings for wheel and axle bearings of mine tubs and portable railway trucks
IPC: B60B37/04
Filed: 1934-08-10
Abstract: 442,541. Railway - vehicle axles. RUHRHANDEL GES., 1, Preselweg, and SCHUCK, C., 6, Steinstrasse, both in Hagen- Haspe, Germany. Aug. 10, 1934, No. 23125. [Class 103 (vi)] [See also Group XXXIV] A conical roller bearing for the axles of colliery and like railway trucks has a spring or springs 9 disposed around the axle acting directly or indirectly upon the bearing race rings 5 or 6 for absorbing the radial or axial thrusts transmitted from the wheels. Figs. 7, 10 show the application to axle bearings. The outer races 5, Fig. 7, are slidably mounted in the axle housing 33 and pressed inwardly through the intermediary of discs 34 by springs 9 abutting flanged rings 36. A grease-tight seal is formed between the discs 34 and collars 35. In two modifications, the outer races of the roller bearings taper inwardly along the axle and are pressed outwardly by springs abutting shoulders in the axle housing, the ends of which are sealed by I-section rings which may be in two parts and may be pressfitted in the housing 33. In Fig. 10, the springs are formed by resilient rings 45 having annular incisions 46.
Patent GB-798676-A (GB)
Title: Improvements in or relating to permanent flexible floor coverings
IPC: D06N3/04
Filed: 1956-07-26
Abstract: A floor covering comprises a sheeted plastic mass of a binder, a filler and a pigment, the binder comprising a terpolymer of from 60-20 per cent vinyl acetate, 10 to 50 per cent vinyl chloride and 20 to 40 per cent of a comonomer which acts to plasticize internally the terpolymer.  Specified comonomers are the butyl, amyl, octyl and lauryl maleates and fumarates, the methyl, ethyl, butyl, amyl, octy and lauryl acrylates, vinyl propionate, vinyl butyrate, vinyl laurate and vinyl stearate.  The binder may comprise 25 to 35 per cent of the plastic mass.  Specified fillers and pigments are clay, titanium dioxide, whiting, asbestos sheets and wood flour.  The sheets may be produced by milling the plastic mass at 220 DEG F.
Patent GB-598755-A (GB)
Title: Shock-absorbing steering wheels for vehicles
IPC: B62D1/10
Filed: 1945-09-08
Abstract: 598,755. Handwheels. HAMILL, W. W. Sept. 8, 1945, No. 23179. [Class 80(iv)] In a vehicle steering wheel of the kind described in Specification 458,999 having an inner hub part 5 for securing to the steering column and an outer part 1 carrying the wheel, the two parts having inter-engaging limbs with rubber or like bodies arranged between them, the adjacent faces of the limbs are formed as a recess 3a, 3b, Fig. 9, and a projection 4a, 4b, Fig. 7, respectively, with pockets 3c and 6 for receiving the rubber bodies. To facilitate assembly, either of the inner or outer parts is divided along a transverse plane centrally of the limbs.
Patent GB-829123-A (GB)
Title: Feed and rewind device for record medium of a recording and/or reproducing apparatus
IPC: G11B15/26
Filed: 1956-07-26
Abstract: 829,123. Driving sound film or tape. REYNOLDS Ltd., G. D., and SOUTHERN INSTRUMENTS Ltd. Oct. 23, 1957 [July 26, 1956], No. 23186/56. Class 40 (2). A recording and/or reproducing apparatus in which a feeding and rewinding device for an elongated record medium is characterized by the provision of a spring or weight, connected to the feed spool, which stores energy for rewinding. A motor-driven roller 4 (Fig. 1) is connected by means of a friction roller 5 to a take-up spool 2 which draws the record medium from a feed spool 1 over a record-replay head 3. The roller 5 is held in the driving position by the electromagnet 6, against the tension of the spring 9. Fig. 2 is an under-plan view and shows a spring 10 anchored at a and attached at b to a cord which winds on to a bobbin 11 on the shaft 12 of the feed spool as the record medium is pulled off. The end of the spring 15 actuates the arm 14 of a micro-switch 13 which de-energizes the electromagnet 6, allows the roller 5 to move away from the take-up spool 2 and hence allows the energy stored in the spring to rewind the tape on to the feed spool. An indicator 20 (Fig. 3, not shown) which shows the amount of record medium withdrawn from the feed spool, is attached to the end of the spring and moves over a scale as the spring extends. In a modification, a constant rate spiral spring of flat strip is wound from one drum to another and stores energy to rewind the record medium. In this case a rotating indicator 42 (Fig. 4, not shown) is attached to a shaft driven from the feed spool.