baber/WOPTO huggingface dataset:
Patent GB-1033671-A (GB)
Title: Improvements in lifting barriers
Inventor: PARKER GEORGE ROBERTSON
IPC: E01F13/06
Filed: 1961-11-27
Abstract: 1,033,671. Level crossing barriers. GODWIN WARREN (ENGINEERING) Ltd. Feb. 21, 1963 [Nov. 27, 1961], No. 42355/61. Heading E1G. The boom C of a level crossing barrier is so mounted on its support 2-5 that when struck by a lateral force it is detached therefrom. One of a pair of balance arms B<SP>1</SP> pivoted at 6 on the support 2-5 is integral with a housing 10 which receives the boom C. The boom is gripped between two pairs of swivels 20 (Fig. 3, not shown), which rock on bearing surfaces 19 of plates 17 and 18, the gripping pressure being variable through screws 39 bearing on the plates 18. If a vehicle strikes the barrier in the direction D, Fig. 3, the swivels rock ejecting the boom C through the open side 16 of the housing 10. The barrier comprises bars 23 pivoted top and bottom in channels 22 and 24 respectively. In an alternative form of barrier, Fig. 5, not shown, the rods are pivoted at 26 in a channel 31 which is partly housed within the boom C and pivotable, when the barrier is lightly struck, on surfaces 29, the boom being ejected bodily when struck more forcibly.
Patent GB-1403981-A (GB)
Title: Sorting of timber
Inventor: BLANKLEY A D
IPC: B07C5/14
Filed: 1971-09-10
Abstract: 1403981 Timber sorting machine MEASURING & PROCESS CONTROL LTD 16 Aug 1972 [10 Sept 1971] 42434/71 Heading B2H  A machine for sorting timber leaving a grading machine, in accordance with grading signals which are received from the grading machine and are representative of the strength of the timber as ascertained by its deflection in the grading machine, comprises a roller conveyor 1 for receiving timber leaving the grading machine (not shown) and moving it endwise, kicker rails 2, 3 extending parallel with, and one on each side of, the path of movement of the timber on the conveyor, and means 11-14 adapted to respond to grade signals from the grading machine for moving the kicker rails, whereby a piece of timber leaving the grading machine is either allowed to run through the sorting machine or its deflected to one side or the other of the conveyor according to which of three grades the piece of timber has been classified by the grading machine. Two or more sorting machines may be arranged end-to-end so as to separate timber into five or more categories. The kicker rails 2, 3 are supported on the ends of pivoted arms 4, 5, 6, 7. Each arm is carried at its upper end on a fixed pivot 8 and is pivotally connected at an intermediate point with the piston rod 9 (10) of a double-acting pneumatic cylinder 11 (12). The cylinders 11, 12 are secured to similar cylinders 13, 14 having piston rods 15, 16 pivotally connected to a vertically adjustable support beam 17. Initially, as the timber enters the sorting machine, the arms 4-7 are held in their uppermost position. On receiving the first signal from the grading machine, low pressure air is applied to the cylinders and the arms 4-7 and the rails 2, 3 assume a position as shown in full lines in Fig 2. If the grade of the timber is such that it is desired that it shall pass straight through, the air pressure is increased to lock the rails in the position shown so that they act as guides. If however, the grade is such that the timber is to be deflected, say to the left in Fig 2, the piston rods in cylinders 11, 13 are fully retracted so as to raise the arms 6, 7 to the position shown in dash-lines, and the piston rods in cylinders 12, 14 are fully extended to move the arms 4, 5 anticlockwise to cause the kicker rail 3 to deflect the timber outwards so that it falls down a ramp 18. Control of the machine may be effected by means of pneumatic or electronic logic circuitry which receives and stores grade signals from the grading machine and which issues command signals to the pneumatic cylinders.
Patent GB-1375649-A (GB)
IPC: C04B41/48
Filed: 1972-09-14
Abstract: 1375649 Asbestos cement laminates CASSELLA FARBWERKE MAINKUR AG 14 Sept 1972 [15 Sept 1971] 42703/72 Heading B5N [Also in Division C3] An asbestos cement article, e.g. a plate, is laminated on at least one face to a resinimpregnated cladding sheet by means of a curable adhesive comprising a mixture of a reactive polymer and an impregnating resin in a weight ratio (based on solids content of the adhesive) of 25 : 75 to 75 : 25, the cladding impregnant and the impregnating resin being a melamine-, urea-, thiourea- or phenol-formaldehyde resin or a mixture thereof, the reactive polymer being a copolymer of (a) 20-80 wt. per cent of at least one ester of (meth)acrylic acid with a C 1 -C 8  alkanol, (b) 0-50 wt. per cent of at least one of acrylonitrile, styrene, vinyl toluene, vinyl chloride and vinyl acetate, (c) 0À5-30 wt. per cent of at least one olefinically unsaturated monomer containing a functional group that reacts on curing with the impregnating resin and (d) 5-45 wt. per cent of at least one hydrophilic monomer, and the adhesive being cured by heat and pressure. The cladding sheet is preferably a decorative paper, but may be a textile fabric, a polyester fleece or glass threads or fibre, and is impregnated and dried before lamination. The adhesive is applied to the article and dried, and the covering sheet is then applied, e.g. by a plate press. The adhesive may be applied directly or as an impregnant on a supporting sheet of fabric, fleece or paper, preferably soda kraft paper. A number of suitable monomers (c) and (d) are listed. The adhesive may include a bisdiene resin, i.e. an oligomeric biscyclopentadienyl compound formed by reacting cyclopentadienyl- Na with an aliphatic or araliphatic dihalide. Examples disclose specific adhesive compositions.
Patent GB-1475906-A (GB)
Title: Plasma display panel and driver circuit
IPC: G09G3/28
Filed: 1974-10-02
Abstract: 1475906 Matrix displays and circuits therefor NIPPON ELECTRIC CO Ltd 2 Oct 1974 [3 Oct 1973] 42812/74 Heading G5C A display system comprises a gas discharge display/memory panel 10 and a driving circuit including a source 25 connected to one set of panel electrodes 11 providing pulses V 0  of at least the firing potential; a plurality of switches Q 1  ... Q m  between said electrodes and source 15<SP>1</SP> of a voltage V<SP>1</SP> where V 0 -V<SP>1</SP> is not more than the sustaining voltage, the electrodes receiving pulses V 0 -V<SP>1</SP> or V 0  depending on whether the corresponding switches Q are conducting or non- conducting ; a plurality of switches S 1  ... S n  between the second set of electrodes 12 and earth, the second electrodes being clamped to earth or being free to carry induced pulses which prevent firing depending on whether the corresponding switches S are conductive or non- conductive. A decoder supplies signals P to select electrodes 12 whilst a buffer 17 applies signals T to sequentially select electrodes 11. The panel electrodes may be crossed conductor arrays or arranged in segmented form.
Patent GB-917667-A (GB)
Title: Improvements in or relating to semi-conductor devices
Inventor: GLASS WILLIAM BRIAN
IPC: H01L21/24
Filed: 1959-12-17
Abstract: 917,667. Semi-conductor devices. -WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Nov. 23, 1960 [Dec. 17, 1959], No. 42912/59. Class 37. In a semi-conductor device having a contact 4 extending over a face of a semi-conductor wafer 1 and beyond an edge of the face, an incision 9 is made across the contact adjacent this edge. In the drawings, a PNN+ silicon diode is provided with gold contacts 4, in the form of layers of gold on Ni-Fe alloy tags 5. A plated tag is initially placed in a jig having pins to guide a hacksaw blade or file over the tag to make in - cision 9, which extends into the Ni-Fe alloy material. The tag is then alloyed to the wafer, which may be etched in a hydrofluoric/nitric acid mixture, and encapsulated.
Patent GB-1518195-A (GB)
Title: Apparatus for inductively heating flanged shafts
IPC: H05B6/02
Filed: 1975-10-20
Abstract: 1518195 Heat-treating flanged shafts AEG-ELOTHERM GmbH 20 Oct 1975 [19 Nov 1974] 42967/75 Heading C7N For inductively heating the fillet region of a rotatably-mounted flanged shaft, a mechanism is provided which ensures that the inductor is a predetermined distance from the fillet. A shaft 1 having a flange 3 and fillet 1A is rotated by motor 6. Inductor 11, 12 which partly surrounds the shaft 1 is attached to an insulating housing 10 mounted on a shaft 9 attached to frame 20 and rod 21 of actuator 24, the housing 10 being movable relative to the shaft 9. When the operation begins, inductor 11, 12 is lowered from its raised rest position, and pistons 32 and 23 are to the left of their respective chambers. A controller 62 activates fluid supply to pipe 27 thus moving the casing 22, and hence the inductor (via rod 33 and housing 10) towards the flange 3. When the inductor contacts the flange, a signal to the controller 62 stops fluidflow to pipe 27 and activates a hydraulic brake 50 to hold the casing 22 in position on the rod 21. Fluid now enters chamber 36 until piston 32 is to the right whereupon heating commences. The resulting distance K between fillet 1A and inductor can be varied by adjustable nuts 40, 41. The heated shaft may be subsequently quenched in a bath.
Patent GB-1440459-A (GB)
Title: Ball bushing
IPC: F16C29/12
Filed: 1973-09-13
Abstract: 1440459 Bearings SKF NOVA AB 13 Sept 1973 [15 Sept 1972] 43124/73 Heading F2A A ball bushing comprises a sleeve 1, a shaft 4, and recirculating balls arranged therebetween and guided in a cage 3, the sleeve having a number of load-supporting ridges 7 extending from its outer surface and the interior of the sleeve being of polygon shape, each polygon surface being provided in the middle thereof with a recess 8 for the reception of a load-carrying strip 5 for balls in the loaded zone, said strips also centering the cage, which is of polygon shape corresponding to that of the interior of the sleeve. The cage is retained axially by bentover portions on the ends of the sleeve. The sleeve is extruded from aluminium, the strips 5 are of steel, and the cage is of plastics. The contact surfaces of the strips may be grooved as shown, or planar.
Patent GB-1292502-A (GB)
Title: Tape-guide sheets for magnetic tape recording cassettes
IPC: G11B23/087
Filed: 1970-09-09
Abstract: 1292502 Coated sheet materials FUJI PHOTO FILM CO Ltd 9 Sept 1970 [10 Sept 1969] 43208/70 Heading B2E [Also in Division G5] Abrasion resistant sheets 4, 4 used for guiding a magnetic tape 2 in a cassette 1 are formed of plastics or paper material, each sheet having on one surface a layer including a powder of graphite, molybdenum-, or tungsten-disulphide, and on the opposite surface thereof a layer of aluminium, copper or graphitic or amorphous carbon. Suitable plastics are polyethylene, polypropylene, polystyrene, P.V.C., polycarbonate, polyethylene terephthalate, and cellulose biacetate or triacetate. The powder particles are less than 10 microns in size, and are applied to the surface in solution in resins.
Patent GB-1277747-A (GB)
Title: 4-(4-tetrahydropyranyl) pyridines
IPC: C23G1/06
Filed: 1969-09-02
Abstract: 1277747 Curing epoxy resins REILLY TAR & CHEMICAL CORP 2 Sept 1969 [31 Jan 1969] 43302/69 Heading C3B [Also in Division C2] 4-(4-Tetrahydropyranyl) pyridines of the general formula in which R 1  and R 2  are hydrogen or C 1 -C 7  alkyl and R 3  and R 4  are hydrogen, phenyl or C 1 -C 7  alkyl, are used for curing epoxy resins. An example is given of the curing of an epoxy resin (Epi Rez5 10 ) by heating with 4-(4-tetrahydropyranyl)-pyridine.
Patent GB-1378974-A (GB)
Title: Pulverulent heat-hardenable coating amterial
IPC: C09D5/03
Filed: 1972-09-19
Abstract: 1378974 Pulverulent coating materials CASSELLA FARBWERKE MAINKUR AG 19 Sept 1972 [20 Sept 1971] 43354/72 Heading  C3R  Pulverulent heat-hardenable coating materials comprise (A) 30 to 45% by weight of a polyester having an average M.W. of 500 to 6000, an acid number below 20, an hydroxyl number of 400 to 800 and a softening temperature of 80‹ to 150‹ C., the polyester being the reaction product of a mixture of (1) 90 to 10 mol per cent of isophthalic acid a lower alkanol ester thereof or an equivalent, based on isophthalic acid, of poly-lower alkylene diol ester thereof and 10 to 90 mol per cent of terephthalic acid, a lower alkanol ester thereof or an equivalent, based on terephthalic acid of poly-lower alkylene diol ester thereof and (2) a mixture of 70 to 100 mol per cent of at least one saturated aliphatic polyol having 4 to 6 hydroxyl groups and 30 to 0 mol per cent of at least one saturated aliphatic glycol whose hydroxyl groups are separated from each other by at least 3 carbon atoms, (B) 55 to 70% by weight of a polyisocyanate having at least 50% of its isocyanate groups masked with a heat-cleavable lactam moiety and (C) up to 2% by weight of a catalyst which promotes heat cleavage of the lactam moiety and hardening of the coating. In a typical example, a polyester derived from pentaerythritol, hexane diol, isophthalic acid and terephthalic acid is mixed with a 3-isocyanatomethyl-3,5,5- trimethylcyclohexylisocyanate / # - caprolactam reaction product, dibutyl tin dilaurate and titanium dioxide. The mixture is milled, sieved applied to a metal plate and baked at 180‹ C. to cleave the masking groups and allow the free isocyanate groups to react with the polyester. Other polyester-forming compounds, polyisocyanates and catalysts are listed.
Patent GB-1433698-A (GB)
Title: Composite structure for magnetic bubble domains
IPC: H01F10/00
Filed: 1974-10-08
Abstract: 1433698 Magnetic storage devices ROCKWELL INTERNATIONAL CORP 8 Oct 1974 [14 Dec 1973] 43498/74 Heading H3B To reduce the polarization of a magnetic propagation overlay 14 due to the high saturation magnetization of submicron bubbles in a layer 11 of a bubble domain material such as a magnetic rare earth garnet or amorphous metallic GdCo, a magnetic shunt layer 21 of a high permeability material such as permalloy is interposed between the bubble domain layer 11 and the propagation overlay. The magnetic shunt layer may be distinct, or may be an integral thin region of the bubble domain layer the composition of which is changed during manufacture. The propagation overlay consists of permalloy T and I bars, Fig. 2 (not shown), spaced from the magnetic shunt layer by an insulating material 13 such as SiO 2 . A further insulating layer 22 may optionally be provided between the bubble domain layer and the magnetic shunt.
Patent GB-957682-A (GB)
Title: Improvements relating to the production of artificial flowers
IPC: A41G1/00
Filed: 1960-12-20
Abstract: 957,682. Artificial flowers. PRESTIGEFLORAL. Dec. 20, 1960 [Sept. 12, 1960], No. 43798/60. Heading A4X. A petal set for artificial flowers comprises a disc 1 with an aperture 2 to receive a stalk, fingers 3 all inclined at an angle α of between 0.2 and 89.9 degrees with respect to a line perpendicular to the lower face of the disc and petals 4 secured to the ends of the fingers. Several petal sets mounted on one stalk form a flower, such as a dahlia, the angle α of the lowest and largest set being 0.2 degrees and of the uppermost and smallest set 89.9 degrees. The petal set is formed of flexible plastics material by injection moulding.
Patent GB-1255449-A (GB)
Title: Character-reading apparatus incorporating electronic scanning circuitry
IPC: G06V30/224
Filed: 1970-09-14
Abstract: 1,255,449. Character recognition. COMPAGNIE GENERALE D'AUTOMATISME. 14 Sept., 1970 [15 Sept., 1969; 24 Nov., 1969], No. 43817/70. Heading G4R. Character recognition apparatus for reading characters composed of character elements arranged on parallel base lines scans the characters along scan lines arranged parallel to the base lines. Using the CMC7 font having vertical elements spaced horizontally with a pattern of large and small spacings characteristic of the character, the apparatus counts the scan lines between successive elements to produce a 1 or a 0 for each spacing, these bits feeding a shift register to control, e.g. a display. The scanning is produced by a vidicon and is rotated if necessary to make the scan lines parallel to the vertical elements forming the character. A plurality of lines of characters may be recognized simultaneously by extending the scan lines and switching the scanner output to respective sets of counter, shift register &c., one set per line. The characters could be composed of horizontal elements, the scan lines being horizontal, and one set of counter, shift register &c. being used for each column of characters. A magnetic character may be read optically using a pair of transparent plates (one being a magnifying lens) between which is situated a thin layer of magnetizable material. The material responds to the magnetic character by varying its thickness in a corresponding pattern, and is scanned optically.
Patent GB-1020287-A (GB)
Title: Production of thorium-uranium oxides
IPC: C04B35/51
Filed: 1962-11-20
Abstract: A ceramic grade mixed thorium-uranium oxide is produced from a mixed thorium nitrate and uranyl nitrate solution containing less than 1.2 moles per litre of free nitric acid, by reducing the uranyl nitrate to uranium-IV nitrate with gaseous hydrogen, or with a solution of an organic compound capable of evolving hydrogen on thermal decomposition in amount to produce one mole of hydrogen per mole of uranium, in the presence of a platinum group catalyst, i.e. platinum, palladium, ruthenium or rhodium, which is finely divided or carried on a high surface area inert carrier, effecting cold precipitation, using an excess of oxalic acid, of a mixed thorium-uranium-IV oxalate, and firing the filtered precipitate at above 400 DEG  C. The reduction of uranyl nitrate to uranium-IV nitrate may be carried out by passing the solution in co-current with hydrogen under a pressure of 5 to 20 atmospheres through a column packed with a carrier carrying the platinum group catalyst.  The organic compound which evolves hydrogen may be formic acid.
Patent GB-1159125-A (GB)
Title: Cooling Radiators
Inventor: MANNING WALTER
IPC: F28D1/03
Filed: 1966-10-01
Abstract: 1,159,125. Fluid cooling radiators. FORD MOTOR CO. Ltd. 1 Oct., 1966, No. 43953/66. Heading F4S. A cooling radiator for a motor vehicle comprises fins 1 supported by a tube 2 which has resilient mounting bushings 10 at each end, the ends of the fins being free and coolant being circulated from the tube 2 through a coolant passage in the fins. Each fin is formed with a single passage 8 or four passages (Figs. 3, 4) each having one end connected to an inlet passage 4 and the other to an outlet passage 5 in the tube 2. The fins shown are each stiffened by a rib 9 and may be perforated and/or corrugated. They may be inclined to the direction of air flow and may be interconnected by upright vanes. In another embodiment, two support tubes are provided, one serving as a coolant inlet and the other as an outlet. The respective length of the fins may differ to suit the space into which the radiator is to be installed.
Patent GB-1449009-A (GB)
Title: Space heater
IPC: A01G13/06
Filed: 1973-09-20
Abstract: 1449009 Space heaters SCHEU MFG CO 20 Sept 1973 [22 Sept 1972] 44196/73 Heading F4W A space heating appliance comprises a cylindrical primary combustion chamber 12 having a vertical wall 20, a floor 22 and a cover 24; a nozzle assembly 16 arranged to direct a spray of fuel 28 through an aperture 30; and a secondary combustion chamber 18 having an upper stack portion 36 and a lower stack portion 38 provided with apertures 40. The cover 24 includes apertures 32 for primary air. An air gap is also provided around the nozzle inlet at 30. The chamber 12 includes a shield 34 which extends from the cover 24 to the floor 22. A small gap is left between the central portion of the shield 34 and the floor 22, to prevent unburnt fuel from accumulating behind the shield. In operation, a spark initiates primary combustion in the central area of the chamber 12. The shield acts to stabilize the flame and to provide uniform heat distribution. Secondary combustion takes place in 18 to remove any pollutants. The appliance may be used in conjunction with a number of similar appliances, the fuel lines being controlled by a single common fuel supply.
Patent GB-443050-A (GB)
Abstract: 443,050. Open fireplaces. MAN CHESTER TRADES SUPPLY CO., Ltd., and FEARNHEAD, J. H., 89, City Road, Manchester. Dec. 13, 1934, No. 35750. [Class 126] To prevent conduction of heat from the refractory fuel-support B of a low-fire open fireplace to the tiles or the like C of the hearth, a gap or air-space b is left between the two, and is covered by a metal, fireclay, or the like guard a which prevents the entry of ashes into the gap but allows them to be brushed over it on to the hearth. The guard may extend only along the front of the fuel-support B but is preferably, as shown in Fig. 6, provided with return ends extending back nearly to the surround. A flange, or flanges a<1> may extend from the front or ends, or both front and ends, of the guard into the gap, and may be provided with apertures a' to enable the guard to be secured to the hearth ; alternatively, apertured lugs may be provided, as shown in Fig. 14. A trivet E may be pivoted at one or both ends of the guard, or a utensil support extending between, and pivoted at, the ends, may be provided which may be turned about a horizontal axis so as to lie over, or in front of the fire.
Patent GB-926236-A (GB)
Title: Laminae and method of production thereof
IPC: B32B27/00
Filed: 1960-12-24
Abstract: 926,236. Laminates. J. A. LEVER. Dec. 27, 1961 [Dec. 24, 1960], No. 44377/60. Class 140. Laminates used particularly for making spectacle frames comprise one or more plies of polyacrylic ester and one or more plies, arranged alternately with the above plies, of cellulose acetate or nitrate, the plies being bonded together with an agent comprising a solution of about 80% of a liquid polyacrylic ester and a hardening agent in about 20% of a solvent, such as acetone or ether, capable of softening the cellulose ester plies without affecting those of polyacrylic ester. In practice the faces of the plies are roughened, coated with bonding agent, allowed to stand until the coating becomes tacky, and laminated under pressure.
Patent GB-1123264-A (GB)
Title: Improvements in or relating to sheet feeding apparatus
IPC: B31B50/04
Filed: 1966-10-05
Abstract: 1,123,264. Feeding sheets. LANGSTON CO. 5 Oct., 1966 [18 Oct., 1965], No. 44498/66. Heading B6B. Sheets are fed from the bottom of a stack in a hopper by a slide 32 engaging the edge of the bottom sheet, the slide reciprocating and delivering the sheet to feed rollers 24, 26 at the peripheral speed of the rollers, which is the same as that of a printing roller 22. The slide is reciprocated by the rotation of a main drive shaft 53 through mechanism 52, 50, 44, 42, 40, 38 in such a way that the speed of the slide varies during its cycle of movement. When a disc 80 is clutched to the shaft by inserting a pin 88 in a hole 92 in the disc, by the actuation of a manual lever, the shaft 53 is rotated by a motor 70 which also drives the rollers 22, 24, 26, through mechanism 68, 66, 64, 62, 60, 58, 76, 78, 80, 88, 82, the speed of the slide as it approaches the left end of its stroke being equal to the roller speed, and its speed as it approaches the right end of its stroke being twice as much, and the frequency of the cycle being such as to feed two sheets per revolution of the roller 22. When the pin 88 is engaged with a hole 90 in a disc 54, the shaft 53 is driven in the opposite direction at half the speed through gear 56, so that only one sheet is fed per revolution of the roller 22, but since the slide now moves at its higher speed as it approaches the left end of its stroke, the feed speed of the sheet approaching the rollers 24, 26 is still the same as that of the rollers. A hand wheel 108 is used to initially align the holes 92, 90 with the pin 88.