baber/WOPTO huggingface dataset:
Patent GB-1108679-A (GB)
Title: Magnetohydrodynamic (mhd) device
IPC: H02K44/12
Filed: 1965-11-03
Abstract: 1,108,679. Generators or pumps operating by electromagnetic interaction with fluids. AVCO CORPORATION. 3 Nov., 1965 [16 Nov., 1964], No. 46647/65. Heading H2A. The duct of an MHD generator or pump is defined by the openings 56 in a series of rectangular non-magnetic conductive (e.g. copper) plates 23 which are arranged juxtaposed with their planes vertical. The apparatus is intended for use with gases in which an appreciable Hall potential, besides the MHD potential, is developed, and for this reason at least some, preferably most, of the plates are disposed obliquely to the general duct direction so that they intersect and are normal to the resultant field gradients. In consequence they lie along equipotential surfaces. To prevent shortcircuiting of the Hall potential along the duct, the plates are separated from one another by insulation (e.g. glass-laminated plastic) 72. A cooling duct is located, in the thickness of each plate, along a rectangular path surrounding the opening, coolant (e.g. water) being supplied to, and withdrawn from, opposite corners of the plate by pipes 26, etc. Cathode material (preferably zirconia) is deposited at 67 in a recess 66 along one vertical edge of the plate opening, and anode material (preferably silver) (not shown) may be deposited or bonded along the opposite edge, or may be omitted. Since the electrodes of each plate are electrically connected through the plate itself, the electrodes need not be connected separately to form a series circuit: it is only necessary to connect input and output leads to the first and last plates, the number being determined by the number of series circuits to be provided. At the entrance and exit of the duct the field direction is different from that in the main part, so the plates here may be set at varying angles to the axis, and they may have curved or other non- planar shapes to conform to equipotential surface shapes in these regions.
Patent GB-1514107-A (GB)
Title: Electronic timepiece
IPC: G04B37/08
Filed: 1976-11-10
Abstract: 1514107 Electric timepieces DAINI SEIKOSHA KK 10 Nov 1976 [11 Nov 1975] 46801/76 Heading G3T [Also in Division H1] An electric timepiece has a space 3 for a single battery 4 and a multi-armed contact spring 9 fixed to a removable case back 8, the spring being mounted eccentrically of the space 3 so that at least one of spring arms 9a will engage battery terminal 7 irrespective of the orientation of the back 8. A screwed back can therefore be used.
Patent GB-971241-A (GB)
Title: Hob
IPC: B23F21/16
Filed: 1962-12-12
Abstract: 971,241. Making hobs by casting; making milling cutters. W. FERD KLINGELNBERG SOHNE G.m.b.H. Dec. 12, 1962 [Dec. 16, 1961], No. 46896/62. Headings B3A, B3F and B3K. A hob comprises cutting-blade strips 2 of H.S.S. or hard metal connected to a steel body I by a low melting point alloy 3 cast around the blade-roots, the body having annular grooves of trapezoidal cross-section and the blades having inter-fitting pegs 5 which are pushed radially into place. The roots of the pegs are recessed along their front faces to interfit as shown. The blades are held outwardly during a comparator which emits a gauge unit signal casting by springs 10. The blades can be initially milled and ground by being held by cast metal in a work-holder with their outer surfaces lying on a cylindrical surface. Specification 939,881 is referred to.
Patent GB-1531234-A (GB)
Title: Construction of enclosures or containers
IPC: F16B12/02
Filed: 1974-10-30
Abstract: 1531234 Drawers L B (PLASTICS) Ltd 28 Oct 1975 [30 Oct 1974] 46910/74 Heading A4B A drawer or container comprises at least three sides each formed of upper and lower sections 5, 6, connected together and to the adjacent adjoining side by corner members 15 which incorporate pairs of spigots 19 for insertion in cavities at the ends of the sections 5, 6. In the embodiment shown single spigot corner members 16 are also used.
Patent GB-1402994-A (GB)
Title: Edible multi-layered product having decreased colour diffusion
IPC: A23L1/275
Filed: 1971-10-14
Abstract: 1402994 Coloured food products UNILEVER Ltd 10 Oct 1972 [14 Oct 1971] 47854/ 71 Heading A2B A packed edible product comprising a first liquid layer in contact with but having a different colour from a second liquid layer, both layers having a similar continuous phase, for example water, is characterised in that the first layer contains a dispersed colouring agent, which agent may be dispersed or dissolved in a dispersed phase, for example fat. Both layers may contain dispersed colour. Both layers may be dairy products, the first layer preferably being a custard containing an oil soluble colouring agent, and the second layer being yoghourt, which, together with a third layer comprising lemonade, fruit, or fruit juice, forms the. Dutch product Vla-flip. The product may be formed either by dispersing the colour in the first layer and then bringing the layers together without physical mixing, or by adding to the first layer a colour whose oil and water solubilities are such that substantially all is dissolved in the dispersed phase.
Patent GB-1523869-A (GB)
Title: Heat transfers
IPC: C08G18/83
Filed: 1974-11-05
Abstract: 1523869 Heat transfers POLYMARK INTERNATIONAL Ltd 29 Oct 1975 [5 Nov 1974] 47867/74 Heading B6C A heat transfer comprising a support and a marking incorporated in a polyurethane resin system which is stable at ambient temperature but cross-links in a few seconds at elevated temperature, e.g. during transfer on to fabrics, is characterized by the components of the resin which are (i) 1 mole of a linear hydroxyterminated polyester having an acid number of 10, an average molecular weight of 600 to 1200, and a separating unit formula  -[-CO-R-CO-O-R<SP>1</SP>-O-]- where R is an alkylene radical of 2 to 8 carbon atoms, and R<SP>1</SP> is an alkylene radical of 4 to 10 C atoms, or of the formula -[-CO-R<SP>11</SP>-O-]- wherein R<SP>11</SP> is an alkylene radical of 4 to 8 C atoms; (ii) 1À1 to 3À1 moles of a diphenyl diisocyanate compound, each isocyanate group being on a different phenyl nucleus; (iii) 0À1 to 2À1 moles of a free glycol having 2 to 100 atoms; (iv) an acid or acid-yielding catalyst; (v) a cross-linking agent containing more than one N-alkoxymethyl group. The molar amounts of polyester plus glycol equalling the molar weight of the diisocyanate, and the average molecular weight of the hydroxy groups in glycol and polyester being between 450 and 600. In the examples stock solutions of uncured polyurethane are made up with solvent and then mixed with catalyst, curing agent and optionally pigments to make up ink compositions or coating solutions. The design layer can be sandwiched between continuous layers of the polyurethane or the marking and a covering or a bonding layer can be applied co-extensively.
Patent GB-1139518-A (GB)
Title: A door for a washing machine
Inventor: HERBERTZ HEINZ
IPC: D06F37/28
Filed: 1966-10-26
Abstract: 1,139,518. Washing-machines. H. KRANTZ YERWALTUNGS G.m.b.H. 26 Oct., 1966 [24 Nov., 1965], No. 48116/66. Heading D1A. The door of a washing machine is opened by pneumatic cylinders 23 mounted on the outside of the cabinet, in such a way that the part 2 of the door which enters the washing drum to prevent loss of clothes is telescoped into an outer portion of the door before the door is swung out of position and on reclosing the door the part 8 is drawn out by the pistons 23 before the door is finally closed. Hot and cold water may be introduced through pipes 15, 16 and the door part 2 may contain detergents prior to washing. The machine may be tilted upwardly or downwardly from its horizontal position for charging and discharging the open door providing a chute in each case.
Patent GB-1208209-A (GB)
Title: Method and system for determining the oxygen content in liquids
IPC: G01N27/407
Filed: 1968-10-11
Abstract: 1,208,209. Electro-chemical analysis. GENERAL ELECTRIC CO. Oct. 11, 1968 [Nov.27, 1967], No.48200/68. Heading G1N. Dissolved oxygen in e.g. molten steel, copper, or aqueous solution is determined by transporting it with a carrier gas to a solid oxygen-ion electrolyte (e.g. zirconia) oxygen sensor. Steel is sampled in a graphite container which reacts with dissolved atomic oxygen to form CO and CO 2  which is removed by bubbling an inert carrier gas through the sample container. Copper is sampled in a refractory (e.g. molybdenum) container with a reactive carrier gas comprising either hydrogen, water vapour, and inert gas, or CO, CO 2  and an inert gas. In aqueous solutions molecular oxygen is removed by an inert gas in a bubbling chamber. Oxygen sensor comprises a tube of calcia-, scandia-, ytterbia-, or yttria-stabilized zirconia with porous platinum electrodes, and it may be surrounded by a heating coil to maintain it at a working temperature of 850‹C. Measuring circuit. A sophisticated measuring circuit is described with reference to Fig. 5 (not shown), in which oxygen is added to the sample gas to oxidize all CO to CO 2 . Measurements are made of:- flow-rate; oxygen in carrier gas; oxygen in sample gas; and added oxygen, and these signals are fed to a suitable evaluating network. A solid electrolyte sensor is used with an applied voltage as an "oxygen ion pump".
Patent GB-1311959-A (GB)
Title: Method for copying a recorded tape
IPC: G11B5/86
Filed: 1970-10-09
Abstract: 1311959 Copying magnetic record tapes MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 9 Oct 1970 [14 Oct 1969 29 Oct 1969(2) 1L Dec 1969] 48210/70 Heading G5R  In a contact-copying process, low-frequency components of a signal which are unsuitable for contact-copying are recorded on the master tape as modulations of a high-frequency carrier. The modulated carrier may be recorded on the same track as the remainder of the signal or on a separate track. In the case of a video tape, the low-frequency components may be part of the accompanying sound, or may form a control signal which in modulated form becomes a train of pulses. The low-frequency components are chosen to be lower in frquency than the flutter caused by the impact of the rotating video heads on the tape.
Patent GB-1472859-A (GB)
Title: Process of minimising or preventing fouling
IPC: C07C7/04
Filed: 1973-10-17
Abstract: 1472859 Heating C 4-5  diolefins EXXON RESEARCH & ENG CO 27 Sept 1974 [17 Oct 1973] 48266/73 Heading C5E Fouling of the surfaces of units in which a stream comprising C 4  or C 5  diolefins is heated is minimized by contacting the internal surface of the heating units with 0À05 to 500 gm. of nitric oxide per square metre of internal metal surface area prior to heating the diolefin-containing stream. The heating units can have walls of iron or steel and can be flushed with nitrogen before and after the treatment with nitric oxide. The diolefin feed can be derived from the steam cracking of gas oil or naphtha. The process can be used to passivate the walls of heating units of a depropanizer or a debutanizer, of heating units of apparatus used in the recovery of butadiene from a C 4  fraction by liquid-liquid extraction with cuprous ammonium acetate solution or by extractive distillation using acetonitrile as the solvent or in the recovery of isoprene from a C 5  fraction by extractive distillation using acetonitrile as the solvent.
Patent GB-1189667-A (GB)
Title: Improvements in Means for Protecting the Supply Cable of a Mining Machine.
Inventor: CARR THOMAS LAW
IPC: E21C35/00
Filed: 1966-10-27
Abstract: 1,189,667. Taking up slack in flexible elements. COAL INDUSTRY (PATENTS) Ltd. 15 Dec., 1967 [27 Oct., 1966], No. 48303/66. Addition to 1,012,432. Heading B8B. The arrangement described in the parent Specification 1,012,432 for feeding power supplies to a longwall mining machine 10 is modified for use on an inclined seam in that the fixed point 16 for the cable carrying chain 14 is spaced uphill of the mid-point 17 of the machine path so that a loop of chain 14a remains when the machine reaches its uppermost limit of travel, the loop being continually urged downwardly of the incline. The loop 14a is engaged by a pulley 18 which through a cable 19 is urged downwardly by an hydraulic winch 20 at the lower end of the path, the winch motor acting as a pump to produce a downwards force as the loop moves upwards.
Patent GB-1374716-A (GB)
Title: Cryptographic system
Inventor: SMITH J L
IPC: G06F21/62
Filed: 1972-10-24
Abstract: 1374716 Digital transmission: ciphering INTERNATIONAL BUSINESS MACHINES CORP 24 Oct 1972 [2 Nov 1971] 49075/72 Heading H4P A ciphering operation involves deriving signals from one half of a block of stored input data and a first set of digits of a cipher key and then using these signals and a second set of cipher key digits to cipher the second half of the data block. The two half blocks of data (one ciphered, one not) are then interchanged and the procedure repeated. The whole cycle is then repeated as many times as the size of the cipher key permits.  Thirty-two bits of data are first loaded into four rows of stores at 2, 4, 6, 8, each row containing four stores arranged as a "source register" 10, 11, &c. and four as a "convolution register" 53, 71, &c. Thus half the block of data is in source registers 10, 20, 30, 40. All eight registers are then made to act as recirculating registers by disabling the connections 80-83 and making operative the feedback connections 15, 25, 25, 45 and 90-93. The output stage of each source register is fed at M0-M3 into a binary adder 50 for combination with a four-bit word ("minibyte") received via a parallel operating register A0-A3 from the cipher key store 16. The preceding minibyte having been fed to a four-bit serial register TCR, a device 52 is controlled by the first stage output KS of TCR to perform a transformation on the output of adder 50, in order to roduce transform signals T0-T3. These, and the current minibyte KA-KD, control exclusive OR gates 60-67 in the convolution registers. At the first "shift" operation therefore, both registers have their contents circulated by one position, the contents of the convolution registers being modified in the process by the exclusive OR gates. Next, a new minibyte from the cipher key is centred into the addend register A0-A3, the second serial output appears at K5 from TCR, and another shift occurs. After four shifts, counted at 9, the contents of the source and convolution registers are interchanged by making operative the connections 80-83 (instead of 15 and 90 &c.) for the duration of the next four shifts. A new minibyte is entered into TCR, and the above described operation repeated during the next four shifts, followed by another interchange. The cycle repeats until the counter 9 counts 128, and an output control 110 permits the fully ciphered output to be taken. A receiver performs the same functions but in effectively reversed order.
Patent GB-1316350-A (GB)
Title: Method of producing patterns in dichroic filters
IPC: H01J29/89
Filed: 1970-10-20
Abstract: 1316350 Optical filters R C A CORPORATION 20 Oct 1970 [20 Oct 1969] 49756/70 Heading G2J [Also in Division H1] A colour encoding filter is formed by depositing an optical filter layer on a substrate and removing portions of said layer by radio-frequency sputter etching. A filter which is for a T.V. camera and which comprises a first grid of narrow evenly spaced yellow filter strips 22 on the inside surface 14 of a vidicon face-plate 16 and a second grid of narrow evenly spaced cyan filter strips 26 is formed by vapour depositing on to the face-plate 16 a continuous yellow inorganic multi-layer dichroic filter, coating the layer with a photo-resist, exposing said coating to a light source such that a pattern of exposed and unexposed photo-resist is formed, removing said unexposed photo-resist thereby uncovering parts of said filter layer, bombarding said exposed coating and uncovered filter with ions from a radio frequency glow discharge to remove said uncovered areas of said filter layer and removing any of said exposed photo-resist which remains after said bombarding. After completion of the yellow strips 22, the entire face-plate surface 14 and the yellow strips 22 are covered with a continuous inorganic cyan, multi-layer, interference filter layer which is etched using the same technique as for the yellow strips.
Patent GB-1069099-A (GB)
Title: A method of making magnesium articles
IPC: C23C2/04
Filed: 1963-12-17
Abstract: 1,069,099. Casting apparatus and processes. DOW CHEMICAL CO. Dec. 17, 1963 [Jan. 9, 1963], No. 49794/63. Heading B3F. [Also in Division F4] Molten Mg or Mg alloy, covered with flux, is transferred from a melting-pot to a mould by a ferrous pipe or trough which is galvanized.
Patent GB-1533260-A (GB)
Title: Water soluble azo dyestuffs
IPC: D06P5/28
Filed: 1976-11-08
Abstract: 1533260 Water soluble azo dyestuffs IMPERIAL CHEMICAL INDUSTRIES Ltd 8 Nov 1976 [5 Dec 1975] 50036/75 Heading C4P [Also in Division C2] The invention comprises water soluble dyes free from carboxylic and sulphonic acid groups and having the general formula wherein R is optionally substituted alkyl, alkenyl, cycloalkyl or aralkyl, Z is H or an optionally substituted alkyl or aryl radical, Y is H, an optionally substituted hydrocarbon radical or is an alkyl- or aryl-sulphonyl or -carbonyl group or is nitro, or Y and Z may together complete a 5- or 6- membered ring, B is the radical of a para-coupling amine or is an indole radical and X is an anion, B may be a radical of the aniline, naphthylamine or tetrahydroquinoline series. The dyes are prepared by diazotization and coupling followed by alkylating the N atom of the thiazole ring. The dyes dye polymers of acrylonitrile and dicyanoethylene and acid modified polamides and polyesters in blue and violet shades.
Patent GB-1042620-A (GB)
Title: High frequency electron discharge devices embodying slow-wave structures
IPC: H01J23/24
Filed: 1963-12-18
Abstract: 1,042,620. Magnetrons; travelling wave tubes; klystrons. VARIAN ASSOCIATES. Dec. 18, 1963 [Jan. 28, 1963], No. 50067/63. Heading H1D. A high frequency electron discharge device, e.g. a magnetron, forward- or backward-wave travelling wave tube or a klystron, has a slow wave circuit composed of at least three planar, similar metallic elements periodically spaced along the beam axis, each of the elements having at least three 90 degrees space-rotated portions extending transversely with respect to the beam axis from a central portion in the vicinity of the beam, the outer ends of two diametrically opposed ones of the portions on one of the elements being conductively connected to the outer ends of two diametrically opposed ones of the space-rotated portions on an adjacent element. The elements may be cruciform with the portions bent out of the plane of the elements for connection with the adjacent element, or a block of electrically conductive material may be interposed between the ends of adjacent portions. Alternatively one pair of opposed portions may be connected to the opposed walls of a waveguide, the third portion (in the case of a T-shaped element), or the other pair of portions (in the case of an X-shaped element) projecting towards the other walls of the waveguide but leaving a gap therebetween.
Patent GB-1332682-A (GB)
Title: Jet looms
IPC: D03D47/28
Filed: 1970-10-22
Abstract: 1332682 Jet looms MACHINEFABRIEK L TE STRAKE NV 22 Oct 1970 [22 Oct 1969] 50321/70 Heading D1E In a jet loom, the supply of pressurised fluid to the nozzle is cyclically pulsated during each weft insertion. This may be effected by having a valve 9 in the supply line from the pressurised fluid source 11 with a slidable valve member 10 reciprocated by a cam 13. Alternatively a pulsating electro-magnetic valve may be used.
Patent GB-1398665-A (GB)
Title: Magnetic head height changing device
IPC: G11B5/48
Filed: 1973-11-01
Abstract: 1398665 Mounting magnetic heads T SUZUKI 1 Nov 1973 [4 May 1973] 50779/73 Heading G5R A track-changing arrangement for a magnetic head 14, Fig. 2, comprises a rotatable member 2 having a cam surface 1 and a plurality of circumferential projections, a follower 13 engaging the cam surface 1 and coupled to the head 14, and driving means, e.g. a driven roller 5, normally, Fig. 1, held away from the rotatable member 2 by a latch 10 which is operable, e.g. by momentary energization of a solenoid 12, Fig. 3, to release the driving means 5 for engagement with the recess following one of the circumferential projections to rotate the member 2 with its cam surface 1 by a predetermined amount, Fig. 4, the latch 10 being reset as the driving means 5 leaves the next circumferential projection.
Patent GB-1308790-A (GB)
Title: Method of producing a vapour growth layer of gaas1-xpx
IPC: C30B25/02
Filed: 1970-10-27
Abstract: 1308790 Light-emitting GaAs 1-n P n  diode HITACHI Ltd 27 Oct 1970 [27 Oct 1969] 51063/70 Heading H1K [Also in Division C1] A light-emitting diode comprises an epitaxial growth layer of GaAs 1-n P n  where (0<n<1) or a need of Ga or Si, GaAs or GaAsP and having P-and N-type regions comprising impurities, e.g. Zn and Se respectively. The diode emits red light at 6540 Š when supplied with a forward current density of 4 A/cm.<SP>2</SP>.
Patent GB-1362589-A (GB)
Title: Sheet printing mechanism
IPC: G06K15/16
Filed: 1971-11-03
Abstract: 1362589 Semi-conductor logic and switching circuits ENGLISH NUMBERING MACHINES Ltd 4 Oct 1972 [3 Nov 1971] 51102/71 Heading H3T [Also in Division B6] Printing apparatus including means for detecting marks on a document comprises a plurality of photo transistors 24-30. If none of the transistors are illuminated a "set" AND gate 52 is operated and if all are illuminated, indicating the absence of a document, a "reset" AND gate 60 is operated. A "set" signal fixes a thyristor 70 to fire causing a capacitor 72 to discharge and operate an actuator 74. A "reset" signal fires a thyristor 78 to switch off thyristor 70, de-energize the actuator and recharge the capacitor.
Patent GB-1107708-A (GB)
Title: Improvements in or relating to nuclear reactor fuel elements
Inventor: FORD LIONEL HOUSTON
IPC: C01B31/30
Filed: 1963-12-31
Abstract: Coated uranium carbide spheroids are produced by applying a pyrolytic coating of carbon to uranium monocarbide spheroids at 1200 DEG -1400 DEG C., followed by an outer coating of a fission product retaining refractory material at 1500 DEG C. or above, so that reaction takes place between the uranium monocarbide and the initial carbon coating producing a gap between each spheroid and its outer coating.  The outer coating may be a further layer of pyrolytic carbon deposited at 1500 DEG -1800 DEG C. Alternatively an intermediate coating of silicon carbide may be applied at 1200 DEG -1400 DEG C. followed by an outer coating of silicon carbide at 1500 DEG -1600 DEG C.; silicon carbide is applied by pyrolysis of methyltrichlorosilane in a fluidized bed in the presence of hydrogen.  Uranium monocarbide spheroids are prepared as described in Specification 1,031,154, graded and coated with pyrolytic carbon in a fluidized bed reactor using a mixture of argon and methane.  The carbon spheroids are dispersed in a refractory matrix of silicon carbide or graphite and shaped to form a nuclear fuel element.
Patent GB-1434636-A (GB)
Title: Light-tight cartridge for sheet material
IPC: G03B17/34
Filed: 1973-11-07
Abstract: 1434636 Photographic cartridge EASTMAN KODAK CO 7 Nov 1973 [7 Nov 1972] 51687/73 Heading G2X  A light-tight cartridge for containing photosensitive aperture cards has a body 12 of rectangular cross-section, an open top closable by a lid 14, and an aperture 24 in its floor closable by a bottom member 16. The lid 14 and bottom 16 snap-fit on to the body 12 to provide a hermetic seal. The box is preferably made of polyethylene. In use, the box is inserted into photo-exposing apparatus, the lid 14 is removed, and a lifting element (not shown) of the apparatus engages ribs 52 depending from the bottom 16 and lifts bottom 16 to unclip it from body 12 and to push the aperture cards upwards for removal one-byone from the open top for transport to an exposure station. The top 14 and bottom 16 can be replaced to save wasting unexposed cards if the box is removed from the photo-exposing apparatus.