baber/WOPTO huggingface dataset:
Patent GB-1283532-A (GB)
Title: Improvements in or relating to space heaters
Inventor: WILKINS PHILIP ARTHUR
IPC: F24H9/20
Filed: 1968-11-12
Abstract: 1283532 Unit space heaters WILKINS & MITCHELL Ltd 12 Nov 1969 [12 Nov 1968] 53548/68 Heading F4V A unit air heater comprises a heat exchanger 10 and a casing defining air passages 13, 14, a fan 17, air outlets 24, 25, a pivoted member 15 which is spaced from the end of the heat exchanger 10 to form therewith a third passage 16 between the outlets 24, 25 and pivoted flaps 26, 27 which in their open and closed positions respectively direct air flow from their associated passages through their associated outlets and through the passage 16, the flaps and member 15 being linked so that in one position of the member 15 the flap 26 is open and flap 27 closed (as shown), in another the flap 26 is closed and flap 27 open and in an intermediate position both flaps are open. The flaps are spring urged to their open positions. The heat exchanger is heated by a gas burner, electrically or by a liquid. The outlet 25 may communicate with an adjacent space to that served by outlet 24. Two air inlets may be provided, one communicating with the adjacent space and the inlets may be controlled by flaps linked to member 15.
Patent GB-1128193-A (GB)
Title: Three-point linkage for agricultural tractors
IPC: A01B59/00
Filed: 1965-12-17
Abstract: 1,128,193. Tractor power lift mechanisms. E. CONRAD. 17 Dec., 1965 [19 Dec., 1964; 4 June, 1965], No. 53629/65. Heading A1P. A tractor power lift linkage is adapted for the quick hitching of an implement by means of hooks 8 on the ends of the links and is characterized in that the hooks on the draft links 3 face upwardly and the hook on the upper link 6 faces downwardly. Associated with each hook is a locking pawl 9 which can be released by attaching chains 12 and 13 to the tractor body. Alternatively a manual lever having a ratchet and pawl mechanism is arranged to operate the chains. The bar 11 connecting the two arms 10 which operate the locking pawls of the draft links is adjustable in length to vary the distance between the draft links. Surfaces associated with the hooks are arranged to guide the implement bolts into the hooks. In an embodiment a spring-biased locking pawl is held in a retracted position by a lever which automatically releases pawl on entry of the implement bolt in the hook.
Patent GB-1127756-A (GB)
Title: Improvements in or relating to tubular articles of helically-wound strip and their manufacture
IPC: B29C48/00
Filed: 1965-12-21
Abstract: 1,127,756. Helically-wound pipes. M. HAWERKAMP. 21 Dec., 1965 [30 Dec., 1964], No. 54242/63. Heading F2P. [Also in Division B8] A process for making a tubular member which may be utilized as a tube or a container comprises helically wrapping a thermo-plastic strip 1 in a plastic condition, for example when taken directly from an extruder or preheater, together with a profiling section 6 about a plain mandrel 3, welding together edges of adjacent strip turns using a press roller 4 having a matching recessed profile to force the strip into conformity with-the profile section, and removing the profiling section from the recess it has formedin the wound strip. As shown, the profiling section is semi-circular in cross-section. In a modification, Fig. 3 (not shown), the tubular member is formed with end flanges by using annular members 6A inaddition to the helically wound profiling section-. Althorgh the adjacent turns of the strip are shown as having oblique butt joints 2, they may also be joined-in overlapping relationship.
Patent GB-1489179-A (GB)
Title: Herbicidal composition
IPC: A01N/
Filed: 1973-11-23
Abstract: 1489179 Synergistic herbicidal composition FISONS Ltd 12 Nov 1974 [23 Nov 1973] 54474/73 Heading A5E Herbicidal compositions and methods utilize as active ingredients a mixture of (A) 4-chloro-2-butynyl m-chlorocarbanilate; and (b) N'-(3-chloro-4-methoxyphenyl)-N, N-dimethylurea and/or N'-(3-chloro-4-methylphenyl)-N, N-dimethylurea, optionally also containing 2-(4-chloro-2-methylphenoxy) propionic acid. A particular application in combating weeds such as wild oats in cereal crops such as winter wheat.
Patent GB-1327789-A (GB)
Title: Catalytic composite of a group viii metal a group vib metal and carrier material and process for the mahufacture and use thereof
IPC: B01J23/85
Filed: 1970-11-17
Abstract: 1327789 Hydrorefining catalysts UNIVERSAL OIL PRODUCTS CO 17 Nov 1970 [21 Nov 1969] 54540/70 Heading B1E [Also in Division C5] A hydrocarbon oil hydrorefining catalyst comprising a Group VIB metal component and a Group VIII metal component supported on carrier material comprising boron phosphate and refractory inorganic oxide material is prepared by a method which comprises (a) preparing a hydrogel of refractory inorganic oxide material, (b) forming a slurry of the hydrogel in an aqueous solution containing boric acid and phosphoric acid, (c) forming from the slurry an extrudable mass having a solids content of from 15 to 45 weight per cent, (d) extruding the mass, (e) impregnating the resulting extrudate with a Group VIB metal component and a Group VIII metal component and (f) drying and calcining the impregnated extrudate in an oxidising atmosphere. The slurry may be treated to provide a first portion having a solids content of less than 20 weight per cent and a second portion having a solids content in excess of 45 weight per cent, suitable amounts of the first portion and the second portion being mixed to provide the mass having a solids content of 15 to 45 weight per cent. Prior to extrusion, the mass may be mixed with binder material, for example selected from starch, polyvinyl alcohol, methylcellulose and graphite. Prior to impregnation, the extrudate may be dried. The impregnated extrudate may be calcined, for example in air, at a temperature of from 371 to 649‹C. The refractory inorganic oxide material may be selected from alumina, silica, zirconia, thoria, boria and mixtures thereof; a preferred material is an alumina-silica composite having an Al 2 O 3 :SiO 2  weight ratio of from 1.5:1 to 9:1, which composite preferably is prepared by co-precipitation at a pH of at least 8.0 from a silica hydrosol comprising a soluble aluminium salt, for example aluminium sulphate. Boron phosphate preferably constitutes from 13 to 35 weight per cent of the carrier material. The Group VIB metal may be selected from chromium, molybdenum and tungsten; the Group VIII metal may be selected from iron, cobalt, nickel and the Group VIII noble metals. A preferred catalyst contains from 5 to 20 weight per cent molybdenum and from 0.1 to 10 weight per cent nickel. The catalyst may have an average bulk density of less than 0.45 g/cm<SP>3</SP> and a crushing strength in excess of 2.3 kilograms.
Patent GB-1131984-A (GB)
Title: Catalyst compositions
IPC: B01J23/58
Filed: 1965-12-23
Abstract: 1,131,984. Dehydrogenation catalysts. MONSANTO CO. 23 Dec., 1965 [28 Dec., 1964], No. 54543/65. Addition to 1,131,983. Heading B1E. An alumina support having a macropore volume of at least 0.05 cc. per gram is impregated with a solution of an alkali or alkaline earth metal compound, and thereafter further impregnated with a solution of a Group VIII precious metal compound to give a composition containing at least 0.01 % of alkali or alkaline earth metal and from 0.02 to 5% of precious metal. Specified alkali or alkaline earth metals are Li, Na, K, Rb, Cs, Be, Mg, Ca, Ba, Sr. The alumina may have special physical properties e.g. a surface area of at least 10 m<SP>2</SP>/gm. The catalyst may be dried and calcined at 300-600‹C.
Patent GB-1482788-A (GB)
Title: Nuclear reactors
IPC: G21C7/117
Filed: 1974-12-18
Abstract: 1482788 Reactors ASEA-ATOM AB 18 Dec 1974 [20 Dec 1973] 54591/74 Heading G6C A water-cooled reactor core comprises a plurality of fuel assemblies supported by vertical water tubes, each fuel assembly having a casing formed with a plurality of first side surfaces parallel to and in direct contact with similar side surfaces of a plurality of adjacent casings, and with second side surfaces which, together with similar side surfaces of other casings, define a plurality of cylindrical, vertical channels for control rods. In the Fig. 2 embodiment, each fuel assembly 4 of a boiling water reactor comprises twelve fuel rods 5 within a square section casing 15 having chamfered corners 18 which define channels 19, some of which serve as guide tubes for the control rod fingers 11 of a control member of the type shown in Fig. 5. The fuel assemblies 4 are arranged in groups of nine, each group being positioned on a common assembly supporting plate 6 (Fig. 4) which has apertures 7 at the top through which water is supplied from a water tube 8 to each of the nine fuel assemblies 4 of the group. Four assembly groups constitute one core module, and each module has one control member. Each control member has sisteen control rod fingers 11 attached to a yoke lying in a horizontal plane and supported by a central shaft 9. The yoke (Fig. 5) comprises four rings connected rigidly to each other and to the shaft 9, each ring surrounding a water tube 8 and being provided with two guide wheels 13 which engage the tube 8. In alternative embodiments, the fuel assembly casing are circular or made with alternately curved and plane cylindrical surfaces (Fig. 7, not shown), are of regular pentagonal crosssection (Fig. 8, not shown), or are of chamfered regular triangular or hexagonal cross-section (Figs. 9 and 10, not shown). The effect of the reduced width of the contact surface between adjoining fuel assembly casings is a reduction in the forced ageing, i.e. plastic deformation even at a relatively low mechanical stress and increasing with the passage of time, of the Zr alloy used for the fuel assembly casings under neutron irradiation.
Patent GB-1205088-A (GB)
Title: Improvements in and relating to devices for connecting together individual pneumatic logical elements
Inventor: BURKERT CHRISTIAN
IPC: B29C70/70
Filed: 1968-11-18
Abstract: 1,205,088. Fluidic logic elements. C. BURKERT. 18 Nov., 1968 [22 Nov., 1967], No. 54665/68. Heading G4P. An arrangement of pneumatic logic elements 5, e.g. for AND, OR, NEGATION, IDENTITY, STORAGE, FLIP-FLOP functions are fixed by clips or screws (not shown) and elastic seals 6 to a mounting plate 2 of, e.g., plastic material screwed to a casing I in turn screwed to a mounting. A hood 7 of, e.g., transparent plastic covers the elements 5 and is perforated with air vents 8 overlying a silencing and filtration plate 9. The mounting plate 2 is fitted on its underside with insertion hose nipples 10 and coned bores 11 into which elastic hoses can be pressed. When a circuit interconnection has been established for production, the hose nipples are replaced by coned bores fitted with permanent connections and the space beneath plate 2 is filled with cold-setting (or thermosetting) casting or press moulding resin to secure the connections, and input and output hose nipple connections on connection plates 13 are screwed on top of mounting plate 2. Plural units are disposable adjacently with interconnections through top hose nipples 10 or side bores (Fig. 2, not shown). Bores in plate 2 may be fabricated blind and perforated where necessary.
Patent GB-1181056-A (GB)
Title: Magnetic Tape Recorders
IPC: G11B15/18
Filed: 1968-11-20
Abstract: 1,181,056. Recording and playback. INTERNATIONAL BUSINESS MACHINES CORP. 20 Nov., 1968 [15 Jan., 1968], No. 54984/68. Addition to 1,180,885. Heading G5R. A helical-scan tape recorder of the type described in Specification 1,180,885, in which a section of tape being scanned is held stationary while the tape in general is advanced, is further provided with means for regulating the amount of tape in the second buffer cavity (43) which receives the tape as it leaves the helical path. As described, during playback the input section (30, Fig. 2) of the vacuum capstan (35) is enlarged by the addition of a cap (38) to raise the input speed of the tape into the helix above its output speed, so that the second buffer cavity (43) always contains some tape in order to prevent fluctuations in the speed of the tape round the helix from being transmitted to the region beyond the second buffer cavity (43) where the tape passes a fixed audio head (67). The presence in the buffer cavity (43) of a predetermined length of tape is detected by a photo-electric device (66, 66a) which causes the tape helix to be held stationary for the duration of one revolution of the rotary video head (11).
Patent GB-1478508-A (GB)
Title: Method of manufacturing a ring from ring segments and a welding jig therefor
IPC: B23K15/00
Filed: 1974-12-20
Abstract: 1478508 Welding by fusion MOTORENUND TURBINEN-UNION MUNCHEN GmbH 20 Dec 1974 [21 Dec 1973] 55135/74 Heading B3R A compressor stator ring comprising a plurality of plate segments each with guide vanes is made by contiguously disposing the segments on a jig to form a complete ring and electron beam welding the segments together in a vacuum chamber. The welding may be effected in two stages, viz. tack and finish. The tack welds are effected successively circumferentially of the ring with successive weld traverses being effected in opposite directions with respect to the ring. Successive finish welds are effected substantially diametrically opposite one another. Preferably beam/workpiece displacement between the welds is by workpiece rotation. The electron beam is guided electronically. The jig comprises jaws 9 (or 10) radially displaceable on a base-plate 8 and each provided with a radially outwardly disposed lip 11 for engagement with segment lower edges and a radially inwardly disposed lip 12 cammingly engaged by an axially movable inwardly coned clamping ring 15. A cover 16 has an inwardly coned rim for camming engagement with segment upper edges. Plain or ball bearings are disposed between the jaws and the base-plate and between the clamping ring 15 and a support column 23 therefor. Slits 19, 20 may be provided in the cover-plate rim and the lips 11 for unobstructed beam traverse over the whole joint lengths. The segments are clamped together radially inwardly both prior to and during welding by axial camming movement of the clamping ring and cover, under pressure of springs 17, 18, the segments being initially formed oversize at their weld edges to allow for weld skrinkage.
Patent GB-1097119-A (GB)
Title: Improvements in or relating to capacitors
IPC: H01G4/32
Filed: 1966-12-12
Abstract: 1,097,119. Capacitors. UNION CARBIDE CORPORATION. Dec. 12, 1966 [Dec. 13, 1965], No. 55456/66. Heading H1M. In a rolled capacitor of the type in which electrical connection is made to non-overlapping portions of the electrode foils extending from opposite ends of the capacitor roll, increased area to which the soldered connections are made is provided by a metal-removing operation whereby the projecting ends terminate in oblique planes. The electrode foils may be aluminium, copper or steel and the dielectric may be paper, polystyrene, polypropylene, P.T.F.E., polyester, polycarbonate or cellulose triacetate. The metal foil may be coated on one or both sides with the dielectric, e.g. vapourdeposited polyparaxylylene, and two such coated foils wound in partially overlapping relationship, or metallized dielectric strips may be used. As shown, the roll is flattened to eliminate the core, and the marginal portions cut, ground or shaved to an oblique plane. Leads 35, 36 are soldered to the exposed surfaces after these have been given a flame-sprayed copper coating 38. The capacitor may then be encapsulated. Reliable connections may be made to capacitors having only one turn.
Patent GB-1322097-A (GB)
Title: Tunnel furnace
Inventor: BENARD C
IPC: C03B25/08
Filed: 1971-11-30
Abstract: 1322097 Tunnel furnaces SAINT-GOBAIN 30 Nov 1971 [3 Dec 1970] 55565/71 Heading F4B A tunnel furnace for heat treating glass comprises a vault formed by a series of end-to-end vault sections each made up of a number of parts suspended from an external frame, including roof members 1, 2, 3, Fig. 1, and a pair of wall members 18, there being a gap 15, Fig. 2, between the roof members 1, 2, 3 of adjacent sections for the introduction of heat insulating screens 26, 27. The wall members 18 of adjacent sections normally abut each other but each member 18 is divided obliquely into two parts 18a, 18b which can be relatively moved on threaded hangers 19 to free the vertical abutting edges and allow the section to be lifted. The gaps between adjacent roof sections are normally closed by blocks 16 having lifting means 17. The sections are supported by pins 13 from parallel beams 12. A carriage running on rails 14 on the beams carries lifting gear to raise the vault section on its own framework of beams 9a, 9b. Pins 13 are first removed. Heating elements 6 are supported by bars 4b from ribs 4a on the underside of the roof members.
Patent GB-1204974-A (GB)
Title: Manufacture of percussive-type photoflash lamps
IPC: G03B15/04
Filed: 1968-11-22
Abstract: 1,204,974. Flash-bulbs. SYLVANIA ELECTRIC PRODUCTS Inc. Nov.22, 1968, [Nov.24, 1967], No.55604/68. Heading G2L. [Also in Division C1] Fulminating material for use as the priming charge in a percussively ignitable flash-bulb is inserted into the bulb in the form of a suspension which has been rendered thixotropic by the addition of a thixotropic inorganic clay such as magnesium montmorillonite. The clay preferably comprises between 0À1% and 4À0% by weight of the dry material, and a preferred material has the following composition by weight:- zirconium 33À33% red phosphorus 13À34% potassium chlorate 13À34% hydroxyethyl cellulose 0À30% magnesium montmorillonite 0À18% aluminium oxide abrasive 39À39% sufficient water being added to give the required viscosity. The water may be replaced by amyl acetate and the hydroxyethyl cellulose by cellulose nitrate.
Patent GB-1205020-A (GB)
Title: Railway levelling apparatus
Inventor: SQUIRE ALLAN MAURICE
IPC: E01B35/02
Filed: 1966-12-14
Abstract: 1,205,020. Measuring cant of railway track. BRITISH AIRCRAFT CORP. Ltd. March 14, 1968, [Dec.14, 1966], No.56020/66. Heading G1N. Apparatus for measuring and adjusting the cant of a railway track comprises a framework having one pair of feelers 10, 12 (Fig.4)resting on the two rails at the rear and a second pair of feelers 24, 26 at the front, inter-connected by beams 18, 20, 22. The cant of the track at the rear is measured by an inclinometer 37, e.g. a spirit level controlling an electrical resistance value indicative of the tilt, mounted on beam 18 joining the rear feelers 10, 12 preferably mounted to give a zero signal when the cant is a desired value. The front ends of beam 20, 22 carry plates 28, 30 facing each other, mounting a device 36 which senses the difference in heights at the facing surfaces, comprising a cam member 36 on plate 28, coacting with the spring-loaded spindle 40 of a hydraulic valve 42 on plate 30. The cam member 36 is adjusted by the signal from the inclinometer 37 so that when the forward cant is the same as the rear cant, spindle 40 is in a neutral position. When the cants are different spindle 40 rides up (or down) the cam surface, and via valve 42 actuates a mechanism which adjusts the level of one rail until spindle 40 is restored to the neutral position. Reference has been directed by the Comptroller to Specification 988, 060
Patent GB-1245989-A (GB)
Title: Improvements in or relating to methods of providing vessel walls with wear-resistant linings
IPC: B02C17/22
Filed: 1968-11-26
Abstract: 1,245,989. Tube mills. TRELLEBORGS GUMMIFABRIKS A.B. 26 Nov., 1968 [19 Dec., 1967], No. 56141/68. Heading B2A. A wall 1, 2, Fig. 1, of a drum or tube mill, has a lining comprising plates or rods of wear resistant material. As described anchoring elements 3..5 are fastened at spaced intervals to the wall or walls of a mill by devices, e.g. stud bolts 6 pivoted on or in the wall and the lining plates or rods are attached to the elements 3..5, if desired, by connecting strips 8, 9. Elements 3..5 may be welded, adhesive bonded, screwed, bolted or pinned to the strips 8, 9. Lifter ribs 11, Fig. 3, may be bonded over or between the joints between plates 10. The lining plates or rods may be made of manganese steel or elastomeric material. When the latter is used the strips 8, 9 are laid at an oblique angle to the elements 3..5, and the helical arrangement encourages a sorting effect on the grinding elements. (For Figure see next page)
Patent GB-1401357-A (GB)
Title: Radio-frequency receiving circuit
IPC: H04N5/44
Filed: 1972-12-07
Abstract: 1401357 Detectors and discriminators INTERNATIONAL STANDARD ELECTRIC CORP 7 Dec 1972 [10 Dec 1971] 56484/72 Headings H3Q and H3A In a radio frequency receiving circuit comprising an amplifier 9, a demodulator 9 for demodulating a signal amplified by the amplifier and a frequency selective circuit 10, 11 for selecting a reference frequency signal U ref  from the amplified signal and feeding it to the demodulator 9, the frequency selective circuit comprises a first LC resonant circuit L1, C1 and a second LC resonant circuit L2, C2 both of which are tuned to the same frequency and which are over critically reactively coupled together to form a double peaked bond pass filter and two diode rectifiers 12, 13 are connected to the band pass filter 10, 11 to form a frequency discriminator. A limiter may be combined with the amplifier and demodulator 9. The output NF from the demodulator provides a signal voltage to a video amplifier and the demodulator operates as a heterodyne detector. The band pass filter 10, 11 has a reference carrier signal U ref /frequency characteristic having a double hump (Fig. 5, not shown). The receiving circuit may be used for frequency stabilization of UHF oscillators using varactor diodes.
Patent GB-1292291-A (GB)
Title: Process for the production of crystalline maltose
IPC: C12P19/22
Filed: 1969-11-18
Abstract: 1292291 Preparing maltose; enzymatic hydrolysis of starch HAYASHIBARA CO 18 Nov 1969 [18 Nov 1968] 56508/69 Heading C2C A process for the production of maltose comprises gelatinizing a starch slurry by heating, treating the resulting gelatinized starch with α-1,6-glucosidase and #-amylase to decompose the starch, purifying and concentrating the resulting saccharified solution to produce a maltose syrup containing maltose microcrystals and then spray drying the resulting syrup to produce maltose crystals. The pH of the starch slurry may be adjusted with oxalic acid before gelatinization and further saccharification may be effected with α-amylase.
Patent GB-1104599-A (GB)
Title: Gas turbine engine combustion chamber
Inventor: MELCONIAN JERRY OHANES
IPC: F23R3/48
Filed: 1966-12-16
Abstract: 1,104,599. Gas turbine combustion chambers. ROLLS-ROYCE Ltd. Dec. 16, 1966, No.56553/66. Heading F1L. Adjacent angularly spaced flame tubes 15 of gas turbine engine combustion equipment are interconnected by flame spreading ducts 16 each of which has at its opposite ends a rectangular conduit 20 having converging outlets 23, 24 directing tangential streams of cooling air into the duct interior. Each duct 16 comprises two stub pipes (17), Fig. 2 (not shown), bolted together. A casing (11) surrounds the assembly of flame tubes to define the air space from which the cooling air is drawn.
Patent GB-1383760-A (GB)
Title: Polyamides
IPC: C08G69/36
Filed: 1971-12-08
Abstract: 1383760 Transparent polyamides HOECHST AG 8 Dec 1971 [10 Dec 1970] 57069/71 Heading C3R Transparent copolyamides are derived from a C 7-20  aromatic dicarboxylic acid, 1,3- or a mixture of at least 50 mol. per cent 1,3- with 1,4- bis-(aminomethyl)-cyclohexane, and sufficient of an aliphatic aminocarboxylic acid of up to 20 carbon atoms to provide 5 to 60 wt. per cent of the polyamide. Specified aromatic acids are iso- and tere-phthalic and 2,5-pyridine-, 4,41- diphenyl-, and 1,4-, 1,5-, and 2,6-naphthalene dicarboxylic acids. The amino acid may be amino-caproic, -pivalic, -caprylic, -undecanoic or -dodecanoic or their lactams. The cyclic diamines are preferably trans. Reference is made to Specification 922,677. The polymers may be injection moulded.