baber/WOPTO huggingface dataset:
Patent GB-1000702-A (GB)
Title: Improvements in or relating to the manufacture of diamonds
IPC: B01J3/06
Filed: 1961-08-14
Abstract: A polycrystalline compact of synthesized diamond embedded in a metal matrix prepared by the method of the invention (see Division C1), is used as an abrasive material.  The diamond compact may or may not be attached to a tool holder.ALSO:<FORM:1000702/C1/1> <FORM:1000702/C1/2> A diamond compact is synthesized by subjecting carbonaceous material to high temperatures and pressures in the presence of a metal catalyst, diamond growth being confined to the carbonaceous materialmetal catalyst combination by a metal shield, in the form of an enclosure, which does not melt under the high temperature-high pressure conditions of the reaction, and which has a higher melting point than the catalyst.  The shield, 32, which is of nickel, iron, chromium, or their alloys, may be regular or irregular in shape, e.g. tube, sphere, rectangular parallelepiped, and contains catalyst discs, 37, 38, of chromium, manganese, tantalum, or a Group VIII metal, together with carbonaceous material, 35, e.g. graphite, coke, coal, sugar or charcoal, the remaining volume of 32 being also filled with graphite.  The catalyst may take the form of discs, spheres, wires or tubes, and may assume various positions within the metal enclosure. 32 is placed in the reaction vessel, which comprises a hollow cylinder of pyrophilite, talc, or carlinite, containing a graphite tube and a liner of alumina or graphite, and subjected to 75,000 atmos. by means of a press apparatus and heated electrically to 1300-1450 DEG  C., the temperature and pressure being subsequently reduced to atmospheric.  The diamond compact, 31, is then removed from the reaction vessel, and the metal shield is either stripped from it, or retained to facilitate soldering, or brazing of the compact on to a part, e.g. wheel, grinding, or cutting element, of a suitable tool. Alternatively, the reaction vessel may be subjected to a "ratcheting" process whereby the pressure is increased to 75,000 atmos., and the temperature raised to 1200 DEG  C., these conditions being maintained for 10 minutes, after which time the reaction vessel is cooled to atmospheric temperature by interrupting the electric power for 2 minutes, and then reheated to 1350-1450 DEG  C. over a period of 20-30 minutes, before finally reducing the temperature and pressure to atmospheric.  Compacts of various shapes may be formed, e.g. by employing end discs which do not touch the sides of the cylindrical metal shield, by varying the spacing between the catalyst disc assemblies, by using end discs which have hemispherical portions removed from them, and by including a spool member within the metal tube to define an annular volume. Specifications 830,210 and 830,743 are referred to.
Patent GB-1497850-A (GB)
Title: Bottom guard arrangement for a track-type vehicle
IPC: B62D55/084
Filed: 1976-07-14
Abstract: 1497850 Endless track vehicles CATERPILLAR TRACTOR CO 14 July 1976 [10 Dec 1975] 29345/76 Heading B7H In a track laying vehicle an intermediate bottom guard 43 has a forward end inserted into a transversely extending socket 31 formed on a bottom front guard 21 and a rearward end which is adapted to transmit lateral and longitudinal forces to shear blocks 37 welded to a bottom rear guard 38, their being bolts 56 which secure the intermediate guard 43 to the rear guard 38. As shown in Figs. 2, 3, notches 46, 47 formed at the forward edge of intermediate guard 43 receive shear blocks 32 disposed within the socket 31 of the front guard 21. A tang 49 at the rear end of intermediate guard 43 is received between the shear blocks 37 of the rear guard 38. The holes (52), Fig. 4 (not shown), in guard 43 are made larger than the shanks of bolts 56 to ensure that forces are only transmitted between tang 49 and shear blocks 37 before engagement occurs between intermediate guard 43 and the bolts.
Patent GB-898107-A (GB)
Title: Multi-vitamin preparation and process for preparing same
Inventor: WAX HARRY
IPC: A61K31/16
Filed: 1960-08-25
Abstract: A dry multi-vitamin composition which provides stable aqueous solutions on dissolution in water comprises Vitamin B12, Vitamin C and ingredients which react with water to produce carbon dioxide e.g. a carbonate or bicarbonate of sodium or potassium and a non-toxic acid which is solid below 100 DEG  F. (38 DEG  C.) e.g. citric or tartaric acid (preferred), or maleic, fumaric, erythorbic or gluconic acid.  Other active materials may also be present e.g. Vitamins A and D2, thiamine mononitrate, riboflavin-51-phosphate, pyridoxine hydrochloride, riacinamide and D-calcium pantothenate.  The invention also comprises aqueous solutions of the above type compositions and similar multivitamin solutions containing carbon dioxide which may be packaged under pressure.
Patent GB-1096112-A (GB)
Title: Improvements in or relating to apparatus for super-atmospheric oxygen therapy
Inventor: GOITEIN KARL
IPC: A61G10/02
Filed: 1963-07-24
Abstract: 1,096,112. Treatment chambers. VICKERS Ltd. July 13, 1964 [July 24, 1963], No. 29404/ 63. Heading A5R. [Also in Division F2] Apparatus for super-atmospheric oxygen therapy comprises a treatment chamber 1 for receiving the patient and a gas circulation system including a conduit 2, 3 provided with re-conditioning devices 13, 14, 15, 16, and an injector pump 12 supplied with gas from a pressure source 4 such that the pump circulates the gas around the conduit and feeds gas from the source into the circuit. The apparatus also includes means for controlling the pressure within the chamber. As particularly described, the apparatus includes a supplementary direct supply line 21, 22, a further regulated supply line 23, 22 and an exhaust or decompression line 28 which includes an exhaust valve 27, a leak device 32, and a relief and exhaust valve 31 biased by a regulated pressure line 33. The apparatus also includes a pressure regulating device 60 having a control line 61, and the device 60 supplying oxygen to the pump at a pressure directly proportional to that in the chamber 1. In operation, closing the chamber door on the patient. operates the valve 20 so that oxygen is supplied via the line 21, 22 as well as via the line 10 and pump 12, the valve 31 being opened so that air is flushed out of the chamber by the incoming oxygen. A time relay then closes the exhaust valve 35 and the line 21 is opened, the system operating on closed circuit with pressure building up via the line 23, 22. When the desired pressure is reached, the line 23, 22 is also closed, using the valve 24. To decompress the system, the exhaust line valve 27 is opened and optionally also the exhaust or relief valve 31, and finally opening the door of the chamber automatically closes the valve 11. The circuit includes a CO 2  absorber 13, a cooler 14, a filter 15, a heater 16, a humidity control device, and a particular carbon dioxide analysing circuit 38, 44.
Patent GB-1186036-A (GB)
Title: Water-Soluble 2:1-Chromium Complex Monoazo Dyestuffs and a process for preparing them
IPC: C09B62/535
Filed: 1967-06-26
Abstract: 1,186,036. Metallized monoazo dyes. FARBWERKE HOECHST A.G. 26 June, 1967 [24 June, 1966], No. 29454/67. Heading C4P. The invention comprises water-soluble 2:1-Cr complex monoazo dyes which in the free acid form are of formula wherein A and C are phenylene or naphthylene radicals which may be substituted, B and D are coupling components linked in ortho-position to Y and Y<SP>1</SP>, X and X<SP>1</SP> are -O- or -COO-, Y and Y<SP>1</SP> are -O- or -NH-, Z is a group -NR-SO 2 -CH 2 -CH 2 -O-SO 3 H or -NR-SO 2 -CH=CH 2  wherein R is H, CH 3  or C 2 H 5 , at least one of the radicals A, B, C and D containing at least one -SO 3 H group if Z is a vinylsulphonylamino group. The dyes are prepared by reacting a 1:1-Cr complex of a monoazo dye with an unmetallized monoazo dye, using appropriately substituted reactants. The dyes may be used to colour cellulosic materials by a reactive dye process or preferably to dye natural or synthetic polyamide materials, in particular wool, in blue, grey and brown shades. Specifications 1,019,454, 1,015,789 and 1,013,443 are referred to.
Patent GB-427286-A (GB)
Title: Process for the manufacture of 2-keto-laevo-gulonic acid
IPC: C07H7/027
Filed: 1934-10-15
Abstract: 2-keto-laevo-gulonic acid is prepared from laevo-sorbose by forming the corresponding bis-methylene ether derivatives by treatment with carbonyl compounds, oxidizing them to the corresponding acid in alkaline solution, and then splitting off the carbonyl compounds by heating with water or dilute acids. Suitable carbonyl compounds are formaldehyde, acetone, methyl-ethyl-ketone, and benzaldehyde. Suitable oxidizing agents are permanganate and ferri-cyanide.  It is not necessary to isolate the intermediate products.  In examples: (1) sorbose is suspended in acetone, sulphuric acid added slowly and the mixture stirred 24 hours, then neutralized with ammonia gas, and filtered. After the acetone is distilled off a viscous oil remains which is crystallized from benzine.  The diacetone-laevo-sorbose so produced is dissolved in dilute potash, and potassium permanganate added with stirring, the product filtered, evaporated to dryness in vacuo and extracted with alcohol and the potassium salt of the diacetone compound of 2-keto-laevo-gulonic acid crystallized.  The free acid is produced by the action of hydrochloric acid in ice cold solution, and the 2-keto-laevo-gulonic acid isolated by heating on the water bath; (2) 50 kilos benzaldehyde are poured over 2 kilos 1-sorbose and 0,5 kilo hydrochloric acid gas passed in.  Ether is added, the solution washed with alkali, dried, and oxidized with alkaline permanganate.  The di - benzal - 2 - keto - laevo-gulonic acid is liberated by mineral acid from an ether solution of the reaction product, and the 2-keto-laevo-gulonic acid itself formed by boiling with alcoholic hydrychloric acid.
Patent GB-712773-A (GB)
Title: Improvements in or relating to electric oscillators of the crystal-controlled type
IPC: H03B5/34
Filed: 1951-12-17
Abstract: 712,773. Valve generating circuits. GENERAL ELECTRIC CO., Ltd., BARSTON, T. G. W., and FOOT, J. B. L. Nov. 21, 1952 [Dec. 17, 1951], No. 29556/51. Class 40 (6). [Also in Group XXXVI] An oscillator producing a plurality of frequencies having a common difference f comprises two piezo-electric crystals connected in parallel paths to control the operation of the oscillator, the natural frequencies of the crystals being equal or nearly equal to the frequencies af and bf where a and b are different integers that have no common factor other than unity. In the oscillator shown the crystals have frequencies of 6 and 10 Mc/s respectively and relatively high frequencies spaced by 2 Mc/s appear in the output circuit. Since-the frequencies of the crystals cannot be exactly integrally related the output components are amplitude modulated. Specification 712,763 is referred to.
Patent GB-533464-A (GB)
Title: Improvements in or relating to grinding or honing devices
IPC: B24B33/10
Filed: 1939-11-07
Abstract: 533,464. Grinding, honing, and like machines. MICROMATIC HONE CORPORATION. Nov. 7, 1939, No. 29569. Convention date, Feb. 18. [Class 60] A grinding, honing, or other machining device having a tool which is progressively expanded in use, comprises means for automatically contracting the tool when it reaches a predetermined size. A machine comprising a number of such tools is also provided with means for automatically withdrawing the tools from the work when the last one has been contracted. Six expansible hones 22 are carried by a head 16 moved vertically by a hydraulic cylinder 24 to and from the cylinder block 10 or other workpiece through a guide 23. The hones are driven by gearing in housings 14 and pinions, 74, 70, Fig. 4, in the head 16 which also carries six hydraulic cylinders and pistons 77, for expanding the hones, six valves 84, for controlling these pistons, and six switches 105 for controlling these valves by means of solenoids 96, 97. Hydraulic pressure is supplied to the cylinders by a pump 130 at a pressure controlled by valves 134, 135. Each switch 105 comprises a snap spring 111 mounted on two pivots 119 so that it can be sprung from the full line position, Fig. 5, in which the electric current from the supply 112 is fed to contact 106, to the broken line position, in which it is fed to contact 107 and a contact 118 carried by the spring but insulated therefrom engages a contact 116. When the machine has completed a cycle of operations and is at rest with the head 16 raised all the switches are in broken-line position so that a circuit is completed through leads 112, 123, the six pairs of contacts 116, 118, lead 120, solenoid 121, Fig. 4, and leads 122, 113, thus holding the valve 126 in the position which keeps the head 16 raised. Six circuits through contacts 107, leads 115, and solenoids 96 are also closed thus holding the six valves 84 in position to keep the pistons 77 raised and the hones contracted. To start the operation a rod 138 is moved to the right to reverse the switches thus breaking the circuit through the solenoid 121 and allowing a spring, gravity &c. to reverse valve 126 and cause the hones to be inserted in the work. The circuits through the contacts 107 are also broken and those through contacts 106, leads 114, and solenoids 97 closed thus moving the valves 84 into position gradually to lower the pistons 77 and expand the hones. Each piston 77 has a cone 98 adapted to engage a spring-returned pin 100 which is adapted, when the corresponding hone has expanded to the desired size, to reverse its switch 105 thus causing this hone to be contracted. When each hone has been thus contracted the circuit through the solenoid 121 is complete and the head 16 is automatically raised. The spindle of each hone includes a universal joint 61, Fig. 1, a pin by which it is detachably secured to the driver, this pin being retained by a sleeve 63, and an adjustable device 21 whereby the expansion of the hone is limited independently of the automatic device.
Patent GB-352831-A (GB)
Title: Improvements relating to opening tops or roofs of motor-cars and other vehicles
IPC: E05B65/12
Filed: 1930-10-03
Abstract: 352,831. Road vehicle opening tops; fastenings. FLEWITT, J. A., 120, Alma Street, Aston, Birmingham. Oct. 3, 1930, No. 29594. [Class 108 (i).] In road vehicles of the kind in which a roof aperture is adapted to be covered by a closure, a fastening is provided whereby the closure may be held in completely closed position or in slightly open position for ventilating purposes. As shown, the fastener comprises an angularly movable member 6 having hook-like parts 10, 11 at different distances from its pivot 7, the hook part 11 being adapted to engage the pin 15 to close the panel 1a completely while the hook part 10 holds it in its slightly raised position. The fastener is provided with cam-shaped parts 14, 19 adapted to co-operate with the pin 15 to move the panel in the appropriate manner. A strong spring 20 is provided cooperating with three flat parts 21, 22, 23 to hold the fastener in the chosen position. In a modification the cam-shaped part 14 is omitted and the end of the hook part 10 acts as a cam to raise the panel. The fastener can be adapted for sliding panels by being arranged horizontally instead of vertically. Specification 320,242, [Class 108 (i), Road vehicles, Body details &c. of], is referred to.
Patent GB-738469-A (GB)
Title: Improvements in or relating to a net for camouflage purposes or for use as a huntingscreen
IPC: F41H3/02
Filed: 1953-10-27
Abstract: 738,469. Camouflage nets. OBERNDORFER GARDINEN-UND SPITZENWEBEREIEN, GES., [formerly ECKHARD GES., F.]. Oct. 27, 1953 [Oct. 29, 1952], No. 29665/53. Class 20 (1). [Also in Group VIII] A small mesh net suitable for camouflage, or hunting, has openings 3, larger than the meshes and separated by bridges 4 which retain camouflage objects threaded through the openings, or by which the net may be secured. The openings may be disposed in parallel rows, those in one row being in line with or staggered with respect to those in adjacent rows. One or more edges of the openings may be reinforced. The selvedges of the net are provided with cotton bands 5. Two of the selvedges are provided with dull metal eyelets in holes 6 and the other two with hemp lines 7 so that two nets may be joined in a quickly releasable manner by approximating an eyeletted edge of one with the line-bearing edge of the other and passing each line, in turn, up through the eyelet opposite to it and down through the next adjacent one, as shown, the last line to be threaded being knotted or otherwise fastened. Two eyelets 8, 9 may also be provided at each corner, a string 10 being secured in one, 8, of them by knots 11, 12 : this string may be tied to a support, or formed into a loop by threading it through the eyelet 9 and knotting, as at 13, or by threading it again through hole 8 and tying the ends together. Stiffening wires may be worked in during manufacture and the net given any desired shape thereby. The net may be dyed with dyestuffs fast to light and atmospheric influences (colour schemes are described) and may be impregnated with known agents, to render it water-repellant, fire-resistant and rot-resistant.
Patent GB-979472-A (GB)
Title: Land drainage
IPC: E02F5/22
Filed: 1962-08-02
Abstract: 979,472. Drainage. C. E. ROSE. Aug. 2, 1963 [Aug. 2, 1962], No. 29715/62. Heading A1B. A charging device for charging porous filling into a drainage channel comprises a hopper 1 supported on the ground with a shoot 3 which depends from the hopper into the channel and an adjustable plate 5 which determines the level 11 of the material 10 deposited in the channel. The hopper could be supported on wheels or skids and the device could be used in conjunction with methods of draining using hard or plastic tubes or shapes formed during operations. The hopper may be sideways adjustable relative to the skids or wheels on which it is supported.
Patent GB-363736-A (GB)
Title: Improvements relating to delivery valves for pneumatic elevators
IPC: B65G53/46
Filed: 1930-10-06
Abstract: 363,736. Pneumatic c elevators. SIMON, Ltd., H. and WALDER, H., Cheadle Heath, Cheshire. Oct. 6, 1930, No. 29816. [Class 78 (i).] A fixed delivery box a has delivery valves b, c and a fixed division d on which is pivotally mounted a movable central gate e oscillated by a crank h. As the gate e approaches the end of its traverse in either direction, it engages a pin attached to a pilot valve plate k by which air is admitted to the compartment f or g by the passage m. Each plate k is carried by a member n pivoted at o which moves with the gate e and permits a greater inflow of air. Each member n may be linked to the corresponding valve b, c, so that the movement of the former actuates the latter. Inflatable packing may be provided along the sides of the gate e.
Patent GB-409339-A (GB)
Title: Improvements in or relating to the manufacture of welding rods
IPC: B23K35/40
Filed: 1932-10-26
Abstract: 409,339. Making welding-electrodes. CLARKE, E. J., 53, Squires Lane, Finchley, and MUREX WELDING PROCESSES, Ltd., Forest Road, Walthamstow, both in London. Oct. 26, 1932, No. 29986. [Classes 83 (ii) and 83 (iv).] Uniting by fusion; shearing.-In making coated welding electrodes or welding rods, wire is drawn through a device for coating it with paste, by gripping blocks which hold the coated wire between narrow contacts that indent the wire, and after releasing the grip the wire is cut at the indentations by co-operating rotary knives moving in synchronism with the gripping blocks. The wire 1 which has been wrapped with wire or asbestos yarn and coated with flux which is hardened at 2, is gripped by pairs of V-shaped blocks 4 on an endless chain 5. The blocks are pressed towards each other by fixed guides 18 against the action of springs 19 to indent the wire and pull it towards a pair of revolving cutters 7 driven in synchronism with the chain through worm and chain gear 26, 22 so that the wire is severed at the indentations after releasing the grip. The cutters are driven by spur 11 and worm gear 8, and may be arranged at the top of the shafts 10 or near the spur gears. In a modification the cutters may be arranged on horizontal shafts. A horizontal roller may be fitted at the exit side of the cutters. Specifications 375,249 and 409,293 are referred to.
Patent GB-1190199-A (GB)
Title: Aircraft Speed Control
IPC: G05D1/06
Filed: 1967-06-29
Abstract: 1,190,199. Engine fuel systems. BODENSEEWERK GERATETECHNIK G.m.b.H. June 29, 1967 [June 29, 1966; July 26, 1966], No.30026/67. Heading F1G. [Also in Division G3] An aircraft speed controller controls the fuel supply to the engines in response to velocity head and is adapted to suppress the influence of gusts. In the embodiment shown, signals #v and b representing the deviation of the aircraft speed from a reference value and the longitudinal acceleration respectively are amplified at 10, 12 and summed. The summed signal is split and passes through an amplifier 14 and differentiating unit 16, the separated components being superimposed again to control a servomotor 18 connected to the engine throttles, The servomotor 18 has a proportional-integral-derivative (PID) action and no position feedback, although a velocity feedback may be introduced. In the alternative embodiment of Fig.2, not shown, the input signals #v, b are split and the components thereof are amplified and differentiated. The time derivative component of #v, is added to the amplified component of b and this signal is added to the amplified component of #v and the time derivative component of b.
Patent GB-333789-A (GB)
Title: Improvements in graters
IPC: B29C73/08
Filed: 1929-10-04
Abstract: 333,789. Atkins & Co., Ltd., F., and Atkins, F. Oct. 4, 1929. Rasps. - A grater suitable for use as an acces. sory in cycle repair outfits comprises a plate 5 perforated at 6 and welded to or forming part of a metal stamp bent up at 9 and curved at 10 tu provide a pair of projections normal to the abrading surface and enclosing a space for the finger. The ends of the plate may be interlocked at 11 or overlapped. The device may be formed of other material such as wood or hard rubber with sandpaper &c. glued to its flat upper surface.
Patent GB-503433-A (GB)
Title: Improvements in or relating to vapour generators with vaporising tubes and superheaters
IPC: F22G5/04
Filed: 1937-11-03
Abstract: 503,433. Water-tube steam boilers; steam superheaters. BABCOCK & WILCOX, Ltd., and TOLLOW, F. S. Nov. 3, 1937, No. 30119. [Classes 123 (ii) and 123 (iii)] In a water-tube boiler, the gases from the combustion chamber 2 after passing over a transverse bank of boiler tubes 1 are directed by baffles 24, 19, 28 first upwards through a pass 25 containing a superheater 34 and having a byepass 23 controlled by a damper 26, then downwards through a pass 27 containing boiler tubes and finally upwards through a pass 30 containing an economizer' 31. The tubes in the second pass and tubes 32 beyond the third pass are connected to a water drum 12 and to steam and water drums 11, 10, which are connected by upflow and downcomer tubes to the headers or drums 5, 4 of the transverse bank 1. In modifications, the water drum 12 is replaced by headers connected to the headers 4 and to the drum 10 by a single row of downcomer tubes..