baber/WOPTO huggingface dataset:
Patent GB-650846-A (GB)
Title: Improvements in paper-making machines
IPC: D21F1/00
Filed: 1948-02-20
Abstract: 650,846. Paper-making machines. WALMSLEYS (BURY), Ltd., and TEMPERLEY, J. Feb. 20, 1948, No. 5027. [Class 96] The edge of the lower lip 12, Fig. 1, of the slice of a paper-making machine, e.g. a Fourdrinier, lies vertically over the axis of the breast roll 22 which has peripheral grooves 38, Fig. 2, leading off white water draining through the wire 37. A toothed doctor 40 may co-operate with the grooves 38 to divert the water to a tank 41. The lower lip 12 or the upper lip 11 or both may be adjusted vertically and/or horizontally relative to the breast roll 22. The latter may be adjustable vertically and/or horizontally and may be positively driven. An evener roll 20 may be fitted scross the slice and an air vent 42 may be provided.
Patent GB-1139423-A (GB)
Title: Process for the preparation of organo-siloxanes and new siloxanes so obtained
Inventor: MILBERT GERARD
IPC: C08G77/04
Filed: 1966-02-04
Abstract: 1,139,423. Organosiloxanes. RHONEPOULENC S.A. 4 Feb., 1966 [4 Feb., 1965; 12 Jan., 1966], No. 5083/66. Headings C3S and C3T. Organosiloxanes are prepared from compounds containing an Si-H bond and organosilanols or organosiloxanols using hydroxylamine or an N-substituted hydroxylamine as catalyst, e.g. N,N-diethylhydroxylamine. The compound containing the Si-H bond may have the formula in which m = 1 or 2, n is an integer; R, R<SP>1</SP> and R<SP>11</SP> are the same or different and each is either a C 1 -C 4  alkyl, a C 2 -C 4  alkenyl or a phenyl radical. The organosiloxanol may have the formula in which n, R and R<SP>1</SP> have the same meaning as above. From 0À1 to 5% by wt. of the reactants may be used as catalyst. Siloxanes of the formula in which R is C 1 -C 4  alkyl and R<SP>1</SP> is C 1 -C 4  alkyl or a phenyl radical are claimed per se. Examples are: 1,1 ,5,5-tetramethoxy- 1 ,5-dimethyl - 3,3 - diphenyltrisiloxane, 1,1,5,5 - tetramethoxy - 1,5 - diethyl - 3,3 - diphenyltrisiloxane, 1,1,5,5 - tetrethoxy - 1,5 - diethyl - 3,3- diphenyltrisiloxane, 1,1,5,5 - tetramethoxy- 1,3,3,5 - tetraphenyltrisiloxane and 1,1,5,5- tetraethoxy - 1,3,3,5 - tetraphenyltrisiloxane. Many of the resultant polyorganosiloxane gums may be cross-linked to form elastomers.
Patent GB-1516607-A (GB)
Title: Digital-to-analogue converter
IPC: H03M1/00
Filed: 1977-02-08
Abstract: 1516607 Digital-to-analogue conversion PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 8 Feb 1977 [11 Feb 1976] 05098/77 Heading H3H In digital-to-analogue conversion, a binary number to be converted is held in a recirculating shift register I for repetitively feeding, least significant bit first, to a sequential digital comparator 5 which compares each bit from the register 1 with a bit of corresponding weight from a counting circuit 3 to produce a pulse train which is averaged at 7 to give a D.C. voltage corresponding to the number in register 1. Counting circuit 3 comprises a recirculating shift register with means 47 for adding 1 to its contents after each circulation.
Patent GB-798972-A (GB)
Title: Manufacture of portland cement
Inventor: EASTMAN DU BOIS
IPC: C04B7/40
Filed: 1956-02-20
Abstract: Portland cement is made by passing a flowable mixture of the ingredients in a vaporizable liquid through an elongated tubular heating zone to vaporize the liquid and form a dispersion of the solids in the resulting vapour, passing the dispersion through a succeeding zone at high velocity flow whilst subjecting the dispersion to turbulence and a velocity sufficient to disintegrate the solids, and then sintering to form clinker.  Specified liquids are water, kerosene, coal tar distillates, alcohols, glycols and carbon tetrachloride, whilst calcareous materials are limestone, chalk, marl, marine shells and waste precipitated calcium carbonate. Argillaceous materials are clay, shale, slats, blast furnace slag and ashes.  Cement rock being both calcareous and argillaceous may be used alone, or if necessary mixed with any of the above materials. Specification 683,318 [Group II] is referred to.
Patent GB-917731-A (GB)
Title: Method of and apparatus for pumping and/or extruding visco-elastic materials
IPC: B29C48/46
Filed: 1959-02-13
Abstract: 917,731. Mixing by compression. RESEARCH CORPORATION. Feb. 13, 1959 [Feb. 24, 1958; Dec. 15, 1958], No. 5156/59. Class 86. [Also in Groups V and XXVI] A mixing-machine comprises solely a plain circular member 32 concentrically inside and spaced from a plain-interiored hollow body 16 having an axial orifice 20 and means to rotate either the member 32 (Fig. 1) or the body 16 (Fig. 2). The rotation is said to cause the material to be mixed and extruded from the orifice. The element 32 and the body 16 may be heated and the body may have a cooling passage 134c. The machine may be frusto- -conically shaped, the member 132 may have an extension 120 in the orifice to discharge the mixture as a tube and a passage 104 is provided through which other material may be passed for mixing with the material from the orifice 20. The machine may be used for mixing bread, dough, polymers, resins with plasticizers, for controlling the molecular weight of resins, for the chemical cross-linking of polymers and for the grafting of one resin to another.
Patent GB-664606-A (GB)
Title: Improved feeler for examination or treatment of solid bodies by pressure waves
IPC: G01N29/28
Filed: 1949-02-25
Abstract: 664,606. Supersonic inspection devices. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. Feb. 25, 1949. [March 11, 1948] No. 5168/49. Addition to 613,239. Class 118 (ii). [Also in Groups XXXIX and XL (b)] Relates to a modification of the apparatus disclosed in the parent Specification for coupling a pressure-wave transducer, e.g. a piezo-electric crystal, to a solid undergoing test ox treatment said apparatus comprising an enclosed volume of wave-conducting liquid under pressure in contact with the transducer and partially bounded by a flexible membrane, e.g. sheet rubber, which may be brought into intimate contact with the solid. According to the present invention the contact area of the membrane with the solid is reduced by providing the membrane with a nipple of frusto-conical shape, Fig. 2 (not shown), made of the same material as the membrane and having a substantially plane outer face. One form of apparatus in accordance with the parent invention is illustrated in the figure in which a piezoelectric crystal 3 is supported by an insulating cup member 2 mounted in a recess in a conductive base 1. The crystal is centered by an insulating washer 4 and is held by a conductive washer 5 locked by an externally threaded washer 6 which screws into the recess. The space between the rear surface of the crystal and the cup 2 constitutes an air gap and the rear surface of the crystal is electrically connected to the inner conductor 8 of a coaxial cable 9 by means of a leaf spring 7, the front surface of the crystal being electrically connected to the outer conductor of the cable via the washers 5 and 6 and base 1. The flexible membrane 10 is clamped against a tapered portion of the base 1 by a washer 11 held by a threaded ring-nut 12.
Patent GB-916550-A (GB)
Title: Method of preparing zirconium phospate
Inventor: JENSEN BROR BORGE SKYTTE
IPC: C01B25/37
Filed: 1961-02-13
Abstract: Zirconium phosphate is prepared by reacting a solution of ammonium zirconium carbonate complex, or an alkyl ammonium zirconium carbonate complex with a solution of an ammonium phosphate, an alkyl ammonium phosphate, or a phosphoric acid. During the reaction carbon dioxide and ammonia or an alkyl amine (boiling point less than 100 DEG C.) are removed from the solution preferably by heating and aerating the solution; this evaporation produces gelatinous zirconium phosphate, which by further evaporation and drying, e.g. in a drying chamber, gives an amorphous vitreous substance or hard grains.  This substance may be treated with water or preferably a strong acid such as hydrochloric acid, to give a granulate, which after washing with acid and water, and drying is suitable as an ion exchange material.  The material may be graded by sifting, and unsuitable zirconium phosphate dissolved in ammonium carbonate solution and reprecipitated by evaporation.  In the example ZrOCl2 solution is poured into an ammonium carbonate solution and the mixture stirred at 80 DEG C.  To this solution is added a solution of (NH4)2HPO4.  A strong stream of air is passed through the mixture at 80 DEG C., whereby a thick jelly of zirconium phosphate is obtained.  This is poured into dishes and dried at 105 DEG C. and washed with five litres of 4N hydrochloric acid; the powdery product thus obtained is washed with 4N hydrochloric acid and deionized water until the washing has a pH of 4, dried at 80 DEG  to 100 DEG C., and screened.  In the above described process the ammonium carbonate used could be substituted by an alkyl ammonium carbonate, e.g. trimethyl ammonium carbonate.
Patent GB-1011569-A (GB)
Title: Purification of argon
Inventor: SEDDON WILLIAM LESLIE
IPC: F25J3/02
Filed: 1963-02-08
Abstract: 1,011,569. Cold separation of gas mixtures. PETROCARBON DEVELOPMENTS Ltd. May 7, 1964 [Feb. 8, 1963], No. 5215/63. Heading F4P. Oxygen-free argon is freed of contaminant nitrogen or of a mixture of nitrogen and hydrogen by separation in a column 4 after the feed gas mixture has been at least partly liquefied by indirect heat exchange at 2 with a gaseous refrigerant, e.g. nitrogen, having been compressed at 6 and expanded without liquefaction at a turbine 9. The so-liquefied mixture then traverses a reboiler 3 and is expanded at a valve 12 into the column from the base of which liquid argon is withdrawn and after expansion at 13 is passed through a reflux condenser 5 and an exchanger 1 where it is assisted by overhead nitrogen to cool incoming feed mixture. The refrigerant performs a closed cycle and the amount fed to the turbine 9 is controlled by a by-passed valve responsive to the level of liquid argon at the base of column 4. A pressure indicating controller 14 maintains the column pressure constant, a similar controller 15 maintains constant the pressure gradient between the column and the vaporizing liquid argon but is overridden by a flow indicating controller 16 when maximum plant capacity is reached. A flow controller 17 maintains constant the overhead nitrogen flow.
Patent GB-962277-A (GB)
Title: Device for protecting a bearing against heat
IPC: F16C37/00
Filed: 1962-02-12
Abstract: 962,277. Bearings; shafts. BROWN, BOVERI & CO. Ltd. Feb. 12, 1962 [Feb. 14, 1961], No. 5247/62. Headings F2A and F2U. In a means for cooling a bearing particularly the gas bearing of a turbo-machine with a hollow shaft where the blade-wheel is located near said bearing, a heat distribution and cooling element is inserted into the hollow shaft with which it makes good contact. In an embodiment, the blade-wheel 1 is attached by screws 7 to the hollow shaft 2 which is mounted in bearings 3, 4 and a cooling element 8 is positioned within each bearing. The element may be a hollow cylinder with a slot 13, Fig. 3 ; may have cooling ribs 12, Fig. 4 ; may have slots 14 in the ribs 12, Fig. 5; and is made of material having good thermal conductivity. The shaft 2 has ducts 9 therein through which heat escapes and an insulation layer 11 is provided between the shaft and the wheel. In operation, gas is sucked in by the rotating shaft, absorbs heat from the bearing, passes through the ducts 9 to a water-cooled gas cooler 6 and is returned to the hollow shaft via a connection 5.
Patent GB-625018-A (GB)
Title: Improvements in or relating to an electric welding apparatus
IPC: B23K11/06
Filed: 1946-02-20
Abstract: 625,018. Asymmetricallyconducting resistances ; electrolytic rectifiers. STEVENS, A. H. (Yoder Co.). Feb. 20, 1946, No. 5272. [Class 37] [Also in Groups XXII and XL (a)] In an electric welding apparatus (see Group XXII), the rectifiers used comprise a plurality of copper plates 47, each having formed on corresponding portions of its opposite surfaces layers of copper oxide 48, and on each surface of the copper oxide 48 and co-extensive therewith a layer of copper 49, leaving a portion of each plate, as at 47a, devoid, of copper oxide and copper layer 49. Connection between the individual elements of the rectifier is made by a plurality of copper blocks, 50, 52 and 55, spaced to receive between them the elements. In a modified form (see Fig. 32) the outer edges of each rectifier element are gripped between pairs of resilient annular members 246, each member of which is slightly curved in crosssection before assembly, so that when they are assembled and clamped in position in engagement with the coated surfaces 244x, electrical contact is provided for. The coating 244x, which may be cupric oxide, selenium oxide, or other material, may be covered, by electroplating or spraying, with a metallic material to provide efficient contact with the members 246. In a modified form of welding apparatus, Fig. 16, electrolytic rectifiers are used, comprising containers such as 107 or 107a of insulating material, each containing electrolyte B and a pair of poles electrically connected to the transformer terminals, or the welding electrode by means of copper studs 108. When the electrolyte B consists of a solution of borax one pole may be of aluminium and the other of lead. When the electrolyte is sulphuric acid one pole may be of tantalum and the other of lead, or other electrolytes and poles may be used.
Patent GB-1182241-A (GB)
Title: Improvements in or relating to a Method of Bonding, and to a Mixture for Providing Bonded, Refractory and Ceramic Materials and to Bonded Materials Produced Thereby.
Inventor: BLOOMFIELD PETER RICHARD
IPC: C04B33/13
Filed: 1966-02-07
Abstract: 1,182,241. Basic aluminium chloride; refractory compositions. CAWOOD WHARTON & CO. Ltd. 3 Feb., 1967 [7 Feb., 1966], No. 5291/66. Headings C1A and C1J. A bond for refractory and ceramic materials, such as fused alumina, silica, sintered mullite, chromic oxide, malachite, zircon and clay, comprises a basic aluminium chloride having a chlorine to aluminium atomic ratio of between 0À5 and 2 and water. Powdered refractory materials, e.g. fine calcined alumina, titania or chromia, may be included in the bond, e.g. as basic titanium chloride and chromium chloride. The basic aluminium chlorides are prepared by dissolving aluminium metal or freshly precipitated aluminium hydroxide in hydrochloric acid or aluminium trichloride or by mixing aluminium chlorohydrate with hydrochloric acid or aluminium trichloride.
Patent GB-124805-A (GB)
Title: Improvements in Sound Transmission by Light Rays Actuating Photoelectric Cells.
Inventor: BRAGG WILLIAM HENRY
IPC: H04B10/00
Filed: 1916-04-11
Abstract: 124,805. Bragg, W. H., and Rankine, A. O. April 11, 1916. Selenium cell and like optically-sensitive relays; telephones. - In a non- circuit-closing relay or a microphone employing a light-sensitive cell, the light from a source is divided into a number of beams by means of a grating, and the various beams focussed upon a mirror adapted to be oscillated directly or indirectly by speech waves or other signalling impulses. The beams after reflection pass through a second grating, and the varying amounts of light passing through this grating are focussed upon a sensitive cell placed in the circuit of the receiver. In a modification a single grating provided with reflecting opaque portions is employed, and the light reflected from the grating is arranged to fall again on the grating after reflection from the oscillating mirror. When the sun is employed as the source of light, a heliostat, operated by a clock, is used to direct the light to the first grating, and a heat absorbing dell is placed in the path of the light before it reaches the mirror. In the arrangement shown in Fig. 5, the light from a source S, after passing through a lens L', and a grating G<1> is reflected by an oscillating mirror M to a second grating G<2> which is near to or upon the surface of a mirror C. The beams, after reflection from the mirror C, are rendered parallel and are focussed by a mirror C<3>, Fig. 4, upon a cell S<1> in the circuit of the receivers T. in a modification the beams are rendered parallel, after passing through the second grating, by means of a lens. In a further modification, the lens L' Fig. 5, is replaced by a concave mirror having the grating G<1> near or upon its surface. In the modification shown in Fig. 8, a single grating, provided with reflecting opaque strips, is employed in combination with a plano-convex lens L. The parallel beams P<1>, P<1>, which pass directly through the lens and grating without reflection, are invariable in intensity, but the beams P, P, which pass through the grating after reflection therefrom and from the mirror M, are variable, and separate from the beams P<1>, P<1> a distance. In the modification shown in Fig. 9, a plane mirror M is employed, with a lens X between it and the first grid G<1>. The mirror M may be operated directly by speech waves by connecting it to the diaphragm d, Fig. 2, of a sound receiver, or indirectly by mounting it in a diaphragm or reed r, Fig. 3, operated by an electro-magnet, when the apparatus operates as a relay. When the arrangement is used as a microphone, the lightsensitive cell is placed at the transmitting-station and is connected in a battery and receiver circuit. Specification 3885/80 is referred to.
Patent GB-601712-A (GB)
Title: Improvements relating to apparatus for time measurement
IPC: G04C3/027
Filed: 1945-02-26
Abstract: 601,712. Valve relay circuits. STOTT, H, T. Feb. 26, 1945, No. 5332/46. Divided out of 590,741. [Class 40 (vi)] [Also in Group XVIII] A time-keeping or time-measuring mechanism comprises a pendulum or other mechanical vibrator which bears a member moved in accordance with the swing of the vibrator to co-operate with a tuned oscillatory electric circuit so as to throw said circuit into or out of resonance, the resulting change in current in the circuit being utilized to count the swings of the vibrator. In the embodiment shown, Fig. 1, a pendulum 4 carries a condenser plate 5 which as the pendulum swings, moves over a fixed condenser plate 6 to throw an oscillatory electric circuit composed of electron discharge tube VI and rectifier tube V2 and associated inductances L1, L2, condensers C1, C2, C3, C4, resistance R1 into or out of resonance, thus changing the current in the circuit. The output from the tube V2 is passed through the winding of a relay L4 controlling contacts 9 which may be in the circuit of an electromagnet operating the clock hands or other counting indicator. In a modification (not shown), the tuning of the oscillatory circuit is varied by the pendulum moving a member of low electrical resistance into or out of the neighbourhood of a coil in the tuned circuit so as to vary the inductance of the coil owing to the eddy currents induced in the member. If desired', the pendulum could carry a member of magnetizable material which, as the pendulum swings, moves into or out of the field of a coil in the tuned circuit to vary the inductance of the coil The pendulum maintaining means may also be controlled by contacts 9 in known manner.
Patent GB-1141703-A (GB)
Title: Chucking device
Inventor: HERMANN OTTO
IPC: B23B5/22
Filed: 1966-02-07
Abstract: 1,141,703. Crank-shaft chucks. R. K. LE. BLOND MACHINE TOOL CO. 7 Feb., 1966, No. 5337/66. Headings B3B and B3T. A crank-shaft chuck comprises a rotatable body 24 with a circumferential drive 40, 42 and an anvil 28 and a jaw 34 for gripping the work, the jaw being pivotable by a chordal slide 74 moved by a screw-and-nut mechanism 48, 77 driven by input and output pinions 60, 56 meshing with a ring gear 58 carried by a frame 20 coaxial with the body 24, the arrangement being such that, if the pinion 60 is driven with the body 24 stationary, it will rotate the ring gear 58 and cause the output pinion 56 to operate the jaw, but, if the body 24 is rotated by the circumferential drive and the pinion 60 idles, the output pinion 56 carries the ring gear 58 round with the body. The nut 48 carries a bevel gear 52 meshing with a bevel gear 54 on a shaft journalled in the body 24 and carrying the pinion 56. The nut is therefore rotated when the pinion 60 is driven through a clutch 66 and a motor 64. Crank-shafts may be loaded automatically.
Patent GB-1261741-A (GB)
Title: Improvements relating to bias cutters
IPC: B29D30/46
Filed: 1969-01-31
Abstract: 1,261,741. Shearing. UNIROYAL. 31 Jan., 1969 [5 Feb., 1968], No. 5379/69. Heading B3W. The disclosure is identical with that of Specification 1,261,742 but the claims relate to a method of and apparatus for bias-cutting flexible sheet material including longitudinal metal reinforcements in which the material is fed intermittently to a cutter which is reciprocated between feed strokes at an angle to the feed direction to bias cut the material on its forward and return strokes into strips of predetermined first and second widths respectively. Feed control means cause the feed stroke to exceed the predetermined width in each case by amounts which compensate for dimensional distortion of the material resulting from cutting alternately in the forward and return directions. For instance, the feed stroke preceding the cutting of a strip 6b of true width Xb = 90 mm. on a return stroke (arrow c) would be 260 mm. Whilst the feed stroke preceding the cutting of a strip 6a of the same width on a forward stroke (arrow b) would be 267 mm.
Patent GB-109224-A (GB)
Title: Improvements in Clutches.
Inventor: SHEPARD WILBUR LORENZO
IPC: F16D31/02
Filed: 1917-04-17
Abstract: 109,224. Shepard, W. L. April 17, 1917. Clutches. - A clutch casing, fixed to a shaft 6, Fig. 2, and provided with cylinder 17, 18 Fig. 3, connected by a liquid pas sage 22, consists of a body 19 and a cap member 24, the cap member having projections 26, which form part of the chambers enclosing valves 27 operated from a lever 35. The pistons 15, 16 are operated from an eccentric on the shaft 7.
Patent GB-839687-A (GB)
Title: Improvements in mixing apparatus for beverages
IPC: B01F9/00
Filed: 1959-02-17
Abstract: 839,687. Beverage mixing apparatus. OSBORNE, M. B. Feb. 17, 1959, No. 5455/59. Class 86 An apparatus for agitating bottled beverages of the kind which are mixed in the bottle in which they are sold is arranged to spin the bottles while inverting them and returning them to the upright position. A conveyer chain 1 actuated by sprocket wheels 2, 2a carries brackets 6 each supporting a rotatable seat 4 fixed to a shaft having a wheel 7 at its other end, and a rotatable clamp 9 journalled in a bracket 11, which is supported by a rod 12 (Fig. 2, not shown) carrying a roller 15 at its further end and urged into the clamping position by a spring. The wheel 7 frictionally engages the wheels 8, 8a which are freely rotatable on the sprocket wheel shafts and are independently driven so that the bottles are spun at a suitable speed. At a point in the path the roller 15 is engaged by a ramp 17 releasing the clamp 9, enabling the bottle to be removed from the seat 4 and another bottle placed thereon by any suitable means.