baber/WOPTO huggingface dataset:
Patent GB-890257-A (GB)
Title: Process for the manufacture of magnesium hydroxide
Inventor: PERLMUTTER SHMUEL
IPC: C01F5/22
Filed: 1959-12-31
Abstract: Magnesium hydroxide is precipitated by the addition of calcium oxide or hydroxide to solutions of magnesium chloride containing sodium chloride in an amount of at least 95% of the saturation value. Preferably a saturated or nearly saturated sodium chloride solution is mixed with a concentrated magnesium chloride solution, and precipitated sodium chloride is removed before the magnesium is precipitated as hydroxide.  The magnesium hydroxide obtained by the process of the invention settles rapidly and is easily filterable. Other chlorides, for example potassium or calcium chlorides, may also be present.
Patent GB-1183398-A (GB)
Title: Improvements in and relating to Doors for Pressure Vessels and the like
Inventor: DAVIS JACK
IPC: F16J13/18
Filed: 1967-09-29
Abstract: 1,183,398. Doors for resisting fluid pressure. A. J. RILEY & SON Ltd. 20 Aug., 1968 [29 Sept., 1967], No. 44580/67. Heading F2P. [Also in Division E2] Closure mechanism for a door 3 adapted to fit to, and close, the mouth of a pressure vessel 1 comprises a plurality of latch members 7 which are rectilinearly reciprocable in a direction substantially in the plane of said closure member, towards and away from the edge of the door when closed in order to lock it in a closed position, or to release it for opening, and a rotatable cam mechanism 13, 14 for reciprocating the latch members 7. As shown, the latches 7 are slidably accommodated in slots formed by the front face of an L-shaped flange 2 around the mouth of the vessel 1, a latch retaining ring 9 secured to the flange 2 by bolts 8, and interposed spacer members 11, the pins 13, carried by an operating ring 12 rotatable, e.g. by pneumatic, hydraulic, electrical, or manual means, in a step in the front edge of the flange 2, co-operating with inclined channels 14 in the inner faces of the latch members 7 to cause the latter to move radially inwardly to hold the door 3 locked and radially outwardly to be withdrawn from the locking position. The securing bolts 8 pass through slots 10 in the latch members 7 which are bevelled at their lower inner edges to force a seal 6 on the door against the flange 2. Several of the latches may be replaced by those having an inclined part (16), Fig. 5 (not shown), of the channels (17) to ensure an initial tightening of the joint 6 before the door is finally locked. As a safety precaution one, or more, of the latches may be cut away to the lower surface of the slot 14 so that the corresponding pin, or pins, 13 have no upper bearing surface, the latch, or latches, being left in its or their locking position, or positions, when the others are raised.
Patent GB-1056350-A (GB)
Title: Martensitic iron-base alloys
IPC: C22C38/08
Filed: 1963-11-12
Abstract: An alloy having substantially martensitic microstructure has the following composition: - .Fe. .C.trace to 0.09% .Be.trace to 0.9% .Ni.4 to 24.0% .Cr.0 to 16.3% Mn and Si are preferably below 1.0% each and P and S below 0.025% each.  The contents of ferrite forming and austenite forming constituents are adjusted to give the required microstructure. The alloy is solution annealed in the range 1400 DEG F. - 2100 DEG F., cooled to ambient temperature, reheated to within the range 700 DEG F. - 1000 DEG F. for a time sufficient to increase the strenght and hardness to the desired values and again cooled. In place of the solution annealing an equivalent hot rolling with or without cold rolling may be employed.
Patent GB-1440642-A (GB)
Title: Production of edible protein containing substances
IPC: A23J3/20
Filed: 1973-09-24
Abstract: 1440642 Reducing RNA content of microfungi RANKS HOVIS MCDOUGALL Ltd 23 Sept 1974 [24 Sept 1973] 44708/73 Heading C6F A process for reducing the nucleic acid content of an edible protein containing substance involves maintaining cells of a grown non-toxic strain of the genus Fusarium in a suspension at a pH of between 4À7 and 7À0 and at a temperature between 55 and 72C for a time of at least 60 seconds, typically for 5 to 60 minutes. The microfungus may initially have been held at an elevated pH for sufficient time to destroy the protease of the cells but not the ribonuclease typically at a pH of 8À5 and at 65 C for between 1/2 minute and 5 minutes. Microfungi: Fusarium graminearum Schwabe IMI 145425, Fusarium oxysporum IMI 154214 and Fusarium solani IMI 154217. The resulting fungal mycelium possesses a reduced level of RNA of below 4 wt. per cent. Comparative experiments disclose the treatment of the microfungus at pH's and temperatures outside the defined ranges.
Patent GB-1058865-A (GB)
Title: Improvements in or relating to the purification of potassium chloride
IPC: C01D3/16
Filed: 1965-10-22
Abstract: Aqueous KCl solution is purified from heavy metal impurities by adding a sodium silicate and separating the solution from the precipitate produced.  The KCl solution may be saturated, hot, e.g. at 100 DEG  C. up to its boiling point, and contain 34 to 36% weight KCl.  After purification the hot solution may be cooled to crystallize the KCl.  The silicate may have a weight ratio of Na2O : SiO2 of 1 : 0.5 to 4, preferably 1 : 3, or be a hydrate, e.g. Na2SiO35H2O and Na2SiO39H2O, or be a mixture of these and may be added in the amount corresponding to 50-340 p.p.m. of silica. The solution may be held at the elevated temperature until the precipitation is complete.  The metal impurity may be Cr, Pb, Cu, V, Fe or Ag.  The precipitate may be removed by filtration, centrifuging or decantation.
Patent GB-1216645-A (GB)
Title: Catalytic process for epoxidation of olefinic compounds in the presence of molecular oxygen
Inventor: ROUCHAUD JEAN
IPC: B01J29/16
Filed: 1969-09-12
Abstract: 1,216,645. Epoxides. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. 12 Sept., 1969 [16 Sept., 1968], No. 45081/69. Heading C2C. An aliphatic or cycloaliphatic olefin is epoxidized by treating in the liquid phase with molecular oxygen at 20-250 C. under an oxygen partial pressure between 0À05 and 60 kg./cm.<SP>2</SP>, in the presence of a catalyst comprising molybdenum, tungsten or vanadium or a compound thereof deposited on a zeolite, the pores of which have an opening diameter between 6 and 10, the molybdenum, tungsten or vanadium content of the catalyst being between 0À02 and 20% by weight with respect to the weight of the carrier and the catalyst being used in an amount of from 10<SP>-1</SP> to 10<SP>-3</SP> gram-atom of metal per kilogram of feedstock. If desired a solvent may be used and suitable solvents are, for example, benzene, chlorobenzene, o-dichlorobenzene, diphenyl, nitrobenzene, phenyl oxide, phenyl polyoxides, or esters, e.g. of acetic, benzoic, phthalic, isophthalic, terephthalic acids or of various trialkyl acetic acids, alcohols, glycols, and ketones.
Patent GB-1104863-A (GB)
Title: Self-propelled surf board or seasled craft
IPC: B63B35/79
Filed: 1965-10-25
Abstract: 1,104,863. Planing craft. M. C. SAWCHUK. 25 Oct., 1965, No. 45162/65. Headings B7A and B7V. [Also in Division F1] A surfboard or sea-sled craft comprises a body having a rearward substantially flatbottomed portion and a forward portion resembling the prow of a boat and having an aperture 14 therethrough for accommodating an outboard motor unit, the walls of the aperture being shaped to react against the wash of the propeller to provide lift and permit easy escape of the wash. The craft is formed by a moulded plastics lower section 10 and an upper section 12 connected via peripheral flanges 23, 36. The upper member has a flat surface 35 for the operator who may be standing or reclining thereon. The operator grasps controls 64 connected to a rudder 28 and also to an earthed plate to move the latter out of contact with posts connected to the ignition system of the motor to allow the motor to be started. Should the operator be thrown off the craft, said plate is returned by springs to its normal position in which it earths the ignition system and so stops the motor.
Patent GB-1073449-A (GB)
Title: Improvements in or relating to electronic data processing apparatus
IPC: H03M1/00
Filed: 1964-11-05
Abstract: 1,073,449. Electric selective signalling. GENERAL PRECISION Inc. Nov. 5, 1964 [Nov. 5, 1963], No. 45210/64. Heading G4H. In a digital-to-analogue converter of the type in which the input bits are interrogated sequentially and, in the case of each, a voltage of amplitude and duration depending on the bit value and significance respectively is fed to an output circuit, at least one most significant bit is interrogated both before and after the other bits. The output circuit is filter which produces the final analogue voltage, and the purpose of " splitting " the higher significance bit(s) is to reduce filter transients if the input changes from 0111 . . . 111 to 1000 . . . 000. Binary words, each to be converted to analogue form, are applied in turn via a translator circuit to successive rows of a core memory. The translator circuit derives a single bit from the three least significant bits of each word to replace them by a process involving correspond. ing bits of previous words (details in Fig 3, not shown) since the input word is too large for the memory, and also places the three most significant bits at the low significance end of the thus modified word, in reverse order, as well as at the high end. The words are read from the memory, parallel by word, serial by bit, to corresponding output channels, a given bit following the previous one after an interval proportional to the binary significance of the latter (except that each occurrence of a " split " bit has only half the normal interval). Each ONE bit sets a flip-flop in its channel, the flipflop being reset just before the next bit arrives. The flip-flop controls the supply of one of two voltages to the channel filter.
Patent GB-1249545-A (GB)
Title: Data support for numerical data
Inventor: JONES LLOYD LESLIE LLEWELLYN
IPC: G06K19/06
Filed: 1969-09-12
Abstract: 1,249,545. Data support. L. L. L. JONES 14 Aug., 1970 [12 Sept., 1969], No. 45220/69. Heading B8F. [Also in Division G4] A card or tape surface is delineated with rectangular digit areas 2 in each of which a decimal digit may be recorded, each digit area is subdivided into an array of identical elementary areas 4 and predetermined ones of these are prerecorded to show in visually recognizable form the digit 8 in the digit area, so that by similarly recording in selected of the remaining elementary areas in a digit area any one of the ten decimal digits may be represented in visually recognizable form in the digit area. The card is of a light colour, the digit areas are enclosed by a dark frame 3 and the pre-recorded and subsequently selected recorded areas are dark. A reading device for reading the card may be programmed to allow for oversized or incorrect recording marks.
Patent GB-1412829-A (GB)
Title: Organic phosphors and a method of preparing same
IPC: C09K11/06
Filed: 1973-09-28
Abstract: 1412829 Luminescent materials and uses thereof ROSTOVSKY ORDENA TRUDOVOGO KRASNOGO ZNAMENI GOSUDARSTVENNY UNIVERSITET 28 Sept 1973 45415/73 Heading C4S [Also in Division C2] An organic phosphor is of formula wherein R is selected from H, Cl, Br, CHO, COCH 3 , COOH and Preparation includes reacting 9,10-phenanthrenequinonemonoimine with the furfural in the presence of piperidine in an organic solvent at the mix b.p. Relative concentrations are discussed to produce various phenanthrooxazoles. Detailed examples are included. Applications include luminescent microscopy, flaw detection, fluorescent dyes, and optical bleaching of cloth.
Patent GB-1535490-A (GB)
Title: Method for adapting anchorage-dependent cells to agitated suspension culture
IPC: C12N5/02
Filed: 1977-11-02
Abstract: 1535490 Culturing tissue cells MONSANTO CO 2 Nov 1977 [3 Nov 1976] 45501/77 Heading C6F A method of adapting a normally anchoragedependent established cell line to agitated liquid suspension culture involves growing an inoculum of the said cell line in substrate-attached culture to a stage beyond that of ordinary monolayer growth whereby multi-layers of cells are produced, releasing the cells from the substrate-attached culture e.g. by dissociation with trypsin, in the form of cell aggregates having diameters within the range 20 microns to 500 microns, transferring the aggregates into a liquid suspension of nutrient culture medium of known essential amino acids, mineral salts, vitamins and carbohydrates, incubating at a temperature of from 30C to 38C while agitating the medium, periodically transferring the growing cells into fresh nutrient medium and continuing the agitated incubation whereby the cells continue to be proliferated in aggregates. The size of aggregates is monitored through microscopic observation. Preferably, about 75% of the cells transferred are in aggregates of from six to 100 cells per aggregate. The Examples are directed to the adaptation to agitated liquid suspension culture of the following normally anchorage-dependent established mammalian cell lines: SV 40 transformed human lung, mouse kidney and mouse embryo cell lines, Kirsten virus transformed mouse embryo cell line and mouse renal adenocarcinoma cell line.
Patent GB-1091786-A (GB)
Title: Substituted anilides
IPC: C07D295/108
Filed: 1964-11-09
Abstract: Novel compounds of the general formula <FORM:1091786/C2/1> (wherein R represents H or a C1- 7 alkyl, (X)m-phenyl, furyl, thienyl, pyridyl or piperonyl group, R1 represents H or a C1- 7 alkyl or phenyl-C1- 7 alkyl group, Y represents a C2- 7 alkenylene or alkynylene group, B represents a basic N-containing radical of less than 12 C atoms, X represents a halogen atom or an OH, NO2, NH2, di-(C1- 7 alkyl)-amino, trihalomethyl or C1- 7 alkyl, alkoxy, hydroxyalkyl or alkanoyl group, m is 0, 1, 2 or 3 and n is 1 or 2), and their acid addition and quaternary ammonium salts, are prepared by reaction of a compound of the general formula <FORM:1091786/C2/2> with an acyl halide R-(Y)n-CO-hal, followed, if desired, by N-alkylation or aralkylation and/or salt formation.  21 - Amino - 3 - piperidinopropiophenone is prepared by catalytic hydrogenation of 21-nitro - 3 - piperidinopropiophenone hydrochloride, which in turn is prepared from o-nitroacetophenone, paraformaldehyde and piperidine hydrochloride. Pharmaceutical compositions, in forms suitable for oral or parenteral administration and having serotonin inhibitory and hypotensive activity, comprise compounds of Formula (I) or their pharmaceutically acceptable acid addition or quaternary ammonium salts together with a pharmaceutical carrier.
Patent GB-1417842-A (GB)
Title: Hydraulic tipping trailer for a motor car
IPC: B60P1/16
Filed: 1972-10-04
Abstract: 1417842 Tipping trailers I T CURRIE 21 May 1974 [4 Oct 1972] 45720/72 Heading B7B A tipping trailer intended for use with a motor car has a tipping axis A disposed between its ends, such that the load assists tipping effected by an hydraulic ram J. The ram J is supplied with fluid from a reservoir G by a hand-operated pump M after closure of a by-pass valve H.
Patent GB-1031807-A (GB)
Title: Improvements in or relating to an attachment for screens or windows
Inventor: ZELL SALOMON
IPC: E06B3/28
Filed: 1963-11-21
Abstract: 1,031,807. Double glazing. ZELL-EM Ltd. Nov. 12, 1964 [Nov. 21, 1963], No. 45938/63. Heading E1R. An anti-condensation attachment for a vehicle window or screen comprises a dishshaped P.V.C. plate 10 with a peripheral flange 11 and a peripheral P.V.C. strip 12 projecting beyond the flange and secured thereto by a layer 13 extraneous tackey adhesive substance, the free side 12a of the flange being highly polished to render it self-adhesive to the glass of the window or screen.
Patent GB-1031482-A (GB)
Title: Improvements in or relating to azo dyestuffs
IPC: C09B62/51
Filed: 1962-12-06
Abstract: The invention comprises azo dyes of the formula <FORM:1031482/C4-C5/1> where Y is H or SO3M, R is H or an alkyl or alkoxy group containing one or two carbon atoms.  The dyes are suitable for dyeing protein and synthetic polyamide fibres, e.g. nylon. An example is furnished.
Patent GB-975920-A (GB)
Title: Improvements in and relating to hydraulically operated mine roof supports
Inventor: SALT GEOFFREY EDMUND
IPC: E21D23/16
Filed: 1961-12-23
Abstract: 975,920. Pipe and rod couplings etc.; valves. GEORGE FLETCHER & CO. Ltd. Dec. 21, 1962 [Dec. 23, 1961], No. 46162/61. Headings F2G and F2V. [Also in Division E1] In a control body in combination with an hydraulically - operated mine - roof support or chock having a connection C to the chock, an exhaust outlet E, and a socket 22 for an adapter 28, fitted to an hydraulic pressure pipe 20, to be connectible to it, the socket 22 has therein a plunger 23 registering with an adapter valve 30, normally closed under the action of a spring 31 and opened by a cam 25, acting on the plunger 23, operable by a lever 26, to allow a flow through the body 10 from the pressure pipe 20 to the chock. The adapter is held in position by a spring- loaded abutment 33 engaging in a recess therein and the body 10 includes spring- loaded non-return valve 16 to prevent discharge on disconnection of the pressure line. The medium flows through passages 32 and the filter 21 from the body 10, which has a pressure relief valve 11. The valve 30 may be a poppet or ball valve.
Patent GB-1098809-A (GB)
Title: Tilt swivel mechanism
IPC: A47C3/026
Filed: 1966-10-17
Abstract: 1,098,809. Seats. M. P. BURKE. Oct. 17, 1966, No. 46227/66. Heading A4J. A seat 12, which is mounted on a tubular column to tilt about a pivot 50, is counterbalanced by the force of a compression spring 52, exerted through a cable 54. The seat is preferably mounted to rotate about the vertical axis of thrust bearing 38, together with sleeve 34, in which spring 52 is adjustably held between blocks 56 and 58. Steel cable 54 extends over pulley 70 and along channel 74 in sleeve 34. Screwthreads 30 are provided so that, on turning the ring 32, the column is extended telescopically to vary the height of the seat.
Patent GB-1127120-A (GB)
Title: Vibration reducing apparatus for curved resilient member
IPC: B41J2/265
Filed: 1966-10-17
Abstract: 1,127,120. Selective printers. INTERNATIONAL BUSINESS MACHINES CORP. 17 Oct., 1966 [18 Oct., 1965], No. 46233/66. Heading B6F. The cable 11 for a wire printer head 12 is damped against oscillation by means of a flexible restraining strip 25 when the print head 12 returns to initial position. The restraining strip 25 is formed of spring steel, a few thousandths of an inch thick, covered on one side by a coating of vibration absorbing material, e.g. foam polyurethane 28 and is coated with a friction reducing material 29 on the other. One end of the restraining strip is anchored at 27, 36 while the other is attached to the lefthand margin stop 20 so it can be adjusted to suit the work required. The restraining strip is in engagement with the cable 11 for the print head 12 at the initial position whatever this position may be. Additional resilient means, e.g. a spring 30 may be provided to contact the restraining strip 25 so as to provide a variable resilient support to said restraining strip dependent upon the position of the left-hand margin strip. An elongated brush 34 comprising plastic bristles 35 may engage the edge of the restraining strip to provide a light vibration damper when the head stops during letter-spacing and subdue minor vibrations during a carriagereturn.
Patent GB-1393327-A (GB)
Title: Electrically excited flowing gas apparatus
IPC: H01S3/041
Filed: 1973-10-04
Abstract: 1393327 Lasers AVCO CORP 4 Oct 1973 [20 Oct 1972] 46439/73 Heading H1C [Also in Division H5] A discharge is produced in a flowing gas by initially ionizing with an electron beam or other means the gas in a working region containing reticulated or divided electrodes, and applying to the electrodes a potential sufficient to cause a gaseous discharge in the ionized gas, the electrodes being spaced from the walls of a chamber forming the working region so that the gas flow passes through the electrodes. A laser 10 is shown in Fig. 1 in which resonator mirrors 18, 19 are supported by the walls of a chamber 11 defining a working region 12, the active gas 13 being in continuous flow between an inlet 15 and an outlet 14. A suitable lasing gas may be Ar, Xe, Kr or a mixture of CO 2 , N 2  and He, the gas being initially ionized by an electron beam applied from an electron gun apparatus 24 through a chamber window 25. The electrodes are formed by parallel groups of copper tubes 31, 35 through which a pressurized coolant such as water is circulated, the anode 27 consisting of curved tubes inclined to the direction of gas flow, and the cathode 26 consisting of generally "wavey" tubes positioned orthogonally of the gas flow. Supports such as 32 space the electrodes from the walls of the chamber. An alternative anode configuration is shown in Fig. 6. In a modification, Fig. 8, the anode is uncooled and consists of a grill of steel rods 45. An alternative form of anode consists of tungsten pins 51 embedded in a non-conductive member 52, Fig. 9, each pin having a series ballast resistor 56 and extending into a heat exchanger compartment 55 through which oil is circulated.
Patent GB-1460647-A (GB)
Title: Hydraulic fracturing process
IPC: E21B43/26
Filed: 1974-10-28
Abstract: 1460647 Fracturing INTERCOMP RESOURCE DEVELOPMENT & ENG INC 28 Oct 1974 46458/74 Heading E1F A method of hydraulically fracturing an underground formation comprises a double cycle including injecting fluid into the formation to allow hydraulic fracture to occur, discontinuing the fluid injection for a period of time to allow a pressure drop in the fluid from fluid loss from the fracture to the formation, resuming injection of the fluid into the formation, and discontinuing the latter injection of fluid. The method may include two or three double cycles, the well not being produced between double cycles. The injection pressure during each double cycle subsequent to the first double cycle is at least 10% greater than during the first double cycle and the periods of discontinuance of injection, other than the last one, are such that the pressure does not fall to less than 1/3 of the amount of the increase in pressure during the previous injection. The period of fluid injection is at least 3.5 minutes and each period of discontinuing injecting fluid, except the last period, lasts from 5 to 60 minutes, preferably the pressure drop during these periods of discontinuing injecting fluid being at least 100 lb/in<SP>2</SP>. Sand may be injected with the fluid to limit the vertical conductive extent of the fracturing and to act as a fluid loss control agent.
Patent GB-1162148-A (GB)
Title: Aerosol Composition
IPC: D06M23/06
Filed: 1966-10-18
Abstract: 1,162,148. Aerosol compositions. HOLMARK MACHINE CORP. 18 Oct., 1966 [18 Oct., 1965], No. 46627/66. Heading C4X. [Also in Divisions A3 and Dl] A method of marking a plurality of plies of material comprises plunging a hollow needle with an elongated discharge slot into said plies of material, feeding a self-contained aerosol composition comprising at least 2% by weight of a marking material, a small amount of a lubricant and a major amount of a propellant to said needle and permitting said aerosol composition to escape through said slot into said plies of material to form a fine dot in each of the plies of material. The term " marking material " is defined as including white and coloured materials and also materials which may leave no residual mark. The preferred marking material is finely divided calcium carbonate, and there are claims for compositions comprising calcium carbonate, lubricant and propellant. Other suitable marking materials are titanium dioxide, calcium silicate, clay, sand, silicon dioxide, attapulgites, bentonites, magnesium carbonate and magnesium oxide. The lubricant may be solid such as talc or graphite or liquid such as mineral oil or one of a long list of suitable chemical products. The preferred propellants are chlorofluorinated hydrocarbons.