baber/WOPTO huggingface dataset:
Patent GB-1147027-A (GB)
Title: Heat transfer assemblies and methods of making them
Inventor: ROSTOKER WILLIAM
IPC: F28D1/047
Filed: 1966-05-11
Abstract: 1,147,027. Tubular heat exchangers. IIT RESEARCH INSTITUTE. 11 May, 1966, No. 20980/66. Heading F4S. [Also in Divisions B3 and C7] A heat transfer assembly comprises a serpentine tube 11 of e.g. copper supported in spaced relation to a foraminous screen 12 the space around the tube and between it and the screen containing a random mass 13 of metallic, e.g. copper, fibres which are bonded to each other, to the tube and to the screen at the points of contact. The fibres are deposited around the tube and on the screen by sprinkling, by air-laying or by straining from a slurry of the fibres in oil or glycerine. Bonding is effected either by heating the article to sintering temperature in a reducing or non-oxidizing atmosphere in a sintering furnace or by a brazing process in which the fibres are coated with a brazing alloy which on heating bonds the fibres at the points of contact. The fibres have a length less than two inches and preferably between a quarter and three-quarters of an inch and the length is preferably at least ten times the mean dimension in cross-section. In use, heat is exchanged between a fluid passed through the tube 11, and an air or gas stream forced through the mass 13 and over the tube; the assembly being particularly intended for use in automobile radiators, heaters, refrigerating and air conditioning systems.
Patent GB-764503-A (GB)
Title: Improvements in or relating to the hot tinning of metal wires
IPC: C23C2/08
Filed: 1954-07-19
Abstract: 764,503. Coating with metals. SOC. ANON. GEOFFROY-DELORE. July 19, 1954 [July 20, 1953], No. 20987/54. Class 82(2) An aparatus for the continuous tinning of metal wires comprises a tank for receiving the molten tin, said tank having an inlet and an outlet for the wire, said inlet and outlet being aligned, and at least one of them comprising a die, the wire moving in a straight path therebetween, and means for rocking the tank about an axis which is parallel to, and spaced from, said wire path. As shown, Fig. 1, the wire a passes through the tin in tank b in a straight line of inclined direction and leaves through diamond die c, the diameter of which equals the diameter of the wire plus twice the thickness of the layer of tin desired, having previously passed through a pickling device f and subsequently passing through a cooling tank d. The tank may be closed with a cover g and be filled with an atmosphere inert to the tin, e.g. steam, in order to reduce dross formation; further, the surface of the tin may be covered with a layer of powdered mica which separates the metal from the air and a second die (Fig. 2, not shown) may be provided for the inlet of the wire. In order to facilitate the insertion of the wire, the tank is rocked to cause the dies c, Fig. 3, to emerge from the molten tin.
Patent GB-374672-A (GB)
Title: Improvements in or relating to machines or apparatus for grading eggs and other goods
IPC: B07C5/22
Filed: 1931-07-23
Abstract: 374,672. Grading eggs &c. by weighing. READMAN, J. N., Highfield Pedigree Poultry Farm, Selby, Yorkshire, and SWIFT, H., 21, Cavendish Road, Leeds. July 23, 1931, No. 21010. [Class 143.] In an egg &c. grading machine of the type wherein the eggs are traversed along a sorting channel and tilt, according to their weights, one of a series of weigh plates arranged in openings in the channel, automatic means are provided for ensuring positive and adequate depression of the weighing mechanism whenever it is displaced even if only slightly, by the weight of an egg resting on the weigh plate. Each weighing mechanism comprises a beam 4, 6 supporting a weigh plate 8 and an adjustable counterbalance weight 5. If an egg on the weigh plate depresses the beam slightly but to an extent insufficient to tip the egg through the discharge opening, a wedge-shaped cam 10 on an oscillating shaft 11 engages a wedge-shaped arm 9 upstanding from the knife-edged pivot 3 of the beam, -and positively depresses the beam. The rear edge of the weigh plate comes into contact with the beam thus tilting the weigh plate about its pivot 7 and discharging the egg. A pin 16 on the leg of the weigh-plate support slides in a slot 17 during the tilting and is returned by a weight attached to the weigh plate. A weight 14 on the upstanding arm 9 assists in the depression of the balance when displaced from the normal position.
Patent GB-695028-A (GB)
Title: Manufacture of unsaturated aldehydes
Inventor: HADLEY DAVID JAMES
Filed: 1950-08-25
Abstract: Unsaturated aldehydes are prepared by the catalytic oxidation of olefines of the general formula R-C(CH3)=CHR1, in which R and R1 are hydrogen atoms or saturated straight or branched chain alkyl groups, in the vapour phase at elevated temperatures with molecular oxygen in the presence of elementary selenium and a solid contact material comprising cupric silicate and silica in which the molar ratio of copper to silica is between 1 : 2 and 1 : 12.  Suitable olefines to be used as starting materials are propylene, isobutene, 2-methylbut-2-ene, 2 : 4 : 4 - trimethylbut - 2 - ene, 2 : 4 : 4 - trimethylpent-2-ene, codimers of n-butene and isobutene, and 2-methylpent-1-ene.  Pure oxygen, air or other free oxygen-containing mixtures may be used.  Suitable reaction temperatures lie within the range 200-400 DEG  C.  Elementary selenium may be mixed with the contact material before it is put in the reactor, or, preferably, selenium vapour may be added to the mixture of the reacting gases. In the examples: (a) isobutene is oxidized to methacrolein; (b) propylene is reacted to acrolein; and (c) a mixture of butene-1 and butene-2 is oxidized to crotonaldehyde.  Specification 694,362 is referred to.ALSO:Catalysts for the production of unsaturated aldehydes by reacting an olefine of general formula R-C(CH3)=CHR1 (in which R and R1 are hydrogen atoms of saturated straight or branched chain alkyl groups) with molecular oxygen consist of elementary selenium and a solid contact material comprising cupric silicate and silica in which the molar ratio of copper to silica is between 1 : 2 and 1.12.  Elementary selenium may be mixed with the contact material or selenium vapour may be added to the mixture of the reacting gases before being passed over the contact material.  The contact material may be prepared as follows:-copper silicate is precipitated from dilute aqueous solutions of equimolecular quantities of a water-soluble cupric salt, such as the chloride, sulphate or nitrate, and sodium metasilicate and the resulting suspension of cupric silicate added to an aqueous suspension of silicic acid formed by adding acid to sodium metasilicate solutions; the mixed precipitate is filtered off and dried, after washing if required.  Specification 694,362 is referred to.
Patent GB-873504-A (GB)
Title: Improvements relating to safety guard and stop mechanism for power presses
Inventor: PALMER JAMES MORRIS
IPC: F16P3/04
Filed: 1958-07-03
Abstract: 873,504. Controlling presses by guards. BRITISH CERAMIC RESEARCH ASSOCIATION. Sept. 4, 1959 [July 3, 1958; Jan. 12, 1959], Nos. 21268/58 and 990/59. Class 80 (4). To prevent the descent of a flywheel 10 and the working stroke of a press unless the guard is closed, and to enable the guard to be opened when the flywheel is still in the bottom, working- stroke-completed, position, a counter-weighted safety catch 11, pivoted at 18 to a plate 19, has a roller 12 running on the under-side of the flywheel and is held in the path of the flywheel when the guard (Fig. 5, not shown) is open by a face 20 thereof abutting a spring-loaded pin 21 carried by a pivoted stop arm 22 operated by a lever 27 connected to the guard. When the guard is closed the pin 21 is moved to a position clear of the face 20 and allows descent of the flywheel, since the safety-catch is then free to pivot, and as it does so the cam 23 attached to the safety catch 11 causes the pin 21 to be deflected axially until, when the flywheel is in its bottom position, the end of the pin lies in the same plane as the surface of the safety catch and the guard may be opened. The locking position shown is resumed on return of the flywheel to its upper position.
Patent GB-1223263-A (GB)
Title: Liquid level sensing devices
Inventor: WILSON KENNETH JOHN
IPC: G01F23/16
Filed: 1967-05-08
Abstract: 1,223,263. Liquid level indication; pressure gauge; dynamometers. DARENTH WEIGHING EQUIPMENT Ltd. May 7, 1968 [May 8, 1967], No. 21292/67. Headings G1H, G1L and G1W. In a liquid level sensing device a flexible wall 1 communicates with the inside of a tank 7 and is subjected to a pressure exerted by the liquid above the wall 1 so as to exert a force, through a rod 22, on a pivoted bell-crank 18 to depress a loose cover 25 of a pneumatic pressure transmitter 26 (See Specification 898,381) against a counter-balancing air pressure supplied through a pipe 30, regulated by a valve 31, and through a pipe 32 to a measuring instrument calibrated to indicate the liquid depth in tank 7. The contact 24 is adjustable along arm 23 of the bell-crank 18 and the transmitter 26 is adjustable along a table 28. In an alternative arrangement the flexible wall 1 is replaced by a bellows.
Patent GB-1302967-A (GB)
IPC: B65G13/071
Filed: 1970-05-04
Abstract: 1302967 Roller conveyers ERMANCO Inc 4 May 1970 [5 May 1969] 21312/70 Heading B8A [Also in Division F2] The drive for a roller conveyer comprises a drive shaft 12, line rollers 10 spaced thereabove at an angle thereto, and driven therefrom by endless resilient belts coupling fixed pulleys on the rollers 10 to pulleys 16 on the drive shaft 12 and frictionally driven thereby such that slip occurs once a certain maximum torque is exceeded. The amount of axial movement of the pulleys 16 is restricted by spacers 17 on the drive shaft. The drive pulleys 16 are each shaped in axial cross-section as a pair of axial straight lines having hyperbolic or conical ends forming flanges to reduce wear on the engaging belt.
Patent GB-994207-A (GB)
Title: Liquid fuel flow control and metering apparatus
Inventor: HARGREAVES JOHN
IPC: F23K5/06
Filed: 1963-05-28
Abstract: 994,207. Supplying liquid fuel to burners. ESSO RESEARCH & ENGINEERING CO. Jan. 6, 1964 [May 28, 1963], No. 21329/63. Drawings to Specification. Heading F4T. Liquid fuel is pumped from a common source to a number of burners located in separate buildings and the pressure of the fuel is reduced at each burner by a valve. The supply to each burner also passes through a filter, a restriction orifice, a flow recording meter, a safety valve which isolates the fuel supply if the pressure reducing valve fails and a float controlled tank ensuring gravity feed to the burner. The above units are mounted on a plate removable from a box located externally of the building. The meter is visible through a window. Two air bleed valves and an isolating valve are also provided.
Patent GB-748334-A (GB)
Title: Electric smelting of iron ores
IPC: C21B13/12
Filed: 1951-09-10
Abstract: 748,334. Briquetting and reduction of iron ores. WEBER, L. Sept. 10, 1951 [Sept. 16, 1950; July 9, 1951], No. 21334/51. Classes 72 and 82(1). A process for smelting an ore containing an iron oxide comprises the steps of separating the ore into finegrained constituents and lump constituents, intimately mixing the fine grained ore with fine-grained bituminous fuel, forming the mixture into briquettes, subjecting the briquettes to a heat treatment for at least partial reduction of the ore therein preferably by induction heating and subsequently charging the briquettes and the unreduced lump ore to an electric furnace for smelting. As shown, fine coal, fine ores, briquette binding agent and flux are supplied at 1, 2, 3 and 4 to a briquetting press C and the briquettes passed to low-temperature coking furnace A in which the heat-treatment takes place after which they are delivered to the electric smelting furnace E, lump ore and lump coal and flux being delivered direct to the furnace at 6. If desired, the fuel content of the briquettes may be greater than that necessary to reduce them completely, in order to eliminate the necessity for supplying lump fuel at 6, and in alternative process the pre-reducing may be effected in a coking head-piece of the furnace E heated by electric induction ; a suitable temperature for the pre-reducing heat treatment is 900‹C.
Patent GB-996799-A (GB)
Title: Improvements in or relating to compositions containing fatty acid amides
Inventor: FRENCH ERIC LIONEL
IPC: C08K5/20
Filed: 1963-05-28
Abstract: A composition comprises from 10 to 50% by weight of a copolymer of ethylene and vinyl acetate which copolymer contains at least 10% by weight of vinyl acetate units, and from 90 to 50% by weight of an amide or an N-substituted amide of a fatty acid, which fatty acid contains at least 12 carbon atoms.  The composition may also contain an antioxidant (butylated hydroxy toluene) and a corrosion inhibitor (tannin).  The composition is a solid lubricant for metal structures.ALSO:A solid lubricant for metal structures comprises a composition containing from 10 to 50% by weight of a copolymer of ethylene and vinyl acetate which copolymer contains at least 10% by weight of vinyl acetate units and from 90 to 50% by weight of an amide or N-substituted amide of a fatty acid which fatty acid contains at least 12 carbon atoms.  Antioxidants, such as butylated hydroxytoluene, and corrosion inhibitors, such as tannin, may also be added.
Patent GB-970334-A (GB)
Title: Improved cementing compositions
Inventor: BUTTREY DOUGLAS NORTON
IPC: C04B28/04
Filed: 1962-06-04
Abstract: Cement compositions comprise Portland cement, aggregates and from 5 to 40% by weight of the cement of a copolymer of (a) 80 to 95% by weight of vinyl chloride and/or vinylidene chloride; and (b) acrylic and/or methacrylic esters of alcohols containing 1 to 6 carbon atoms. Specified aggregates are sand, lime and gravel. The copolymer may be added as a dry powder or in aqueous dispersion, and the compositions may also comprise non-ionic surface active agents, e.g. t-octyl phenyl ethers of polyoxyethylene glycols, and silicone anti-foaming agents.ALSO:Cementing compositions comprise Portland cement, aggregates and from 5 to 40% by weight of the cement of a copolymer of (a) 80 to 95% by weight of vinylchloride and/or vinylidene chloride and (b) acrylic and/or methacrylic esters of alcohols containing 1 to 6 carbon atoms. Specified aggregates are sand, lime and gravel. The copolymer may be added as a dry powder or in aqueous dispersion, and the compositions may also comprise non-ionic surface active agents, e.g. t.octyl phenyl ethers of polyoxyethylene glycols, and silicone antifoaming agents. An example describes a composition comprising Portland cement, silica sand, a silicone antifoaming agent and an aqueous dispersion of a vinylidene chloride-methyl acrylate copolymer stabilized with a polyoxyethylated t.octylphenol. The compositions may be used for repairing and resurfacing roads and floors, making cement-bonded roofing and building blocks and surfacing wood, glass, mild steel and old concrete.ALSO:Substrates may be coated by trowelling with cementing compositions comprising Portland cement, aggregates and from 5-40% by weight of the cement of a copolymer of (a) 80-95% by weight of vinyl chloride and/or vinylidene chloride and (b) acrylic and/or methacrylic esters of alcohols containing 1-6 carbon atoms.  Specified aggregates are sand, lime and gravel.  An example describes the coating of wood, glass, mild steel and old concrete with compositions comprising Portland cement, silica sand, a silicone antifoaming agent and an aqueous dispersion of a vinylidene chloride-methyl acrylate copolymer stabilized with a polyoxyethylated t.octyl phenol.
Patent GB-805050-A (GB)
Title: Improvements relating to the purification of benzene
IPC: C10G69/08
Filed: 1956-07-11
Abstract: Benzene containing non-aromatic hydrocarbons forming azeotropes with benzene is refined by subjecting to catalytic reforming in the presence of hydrogen at 850-1050 DEG  F. and 50-1000 p.s.i.g., and fractionally distilling the reformate to obtain a benzene fraction. Benzoles containing sulphur compounds may be hydrodesulphurized or acid-treated prior to the reforming or a single-stage treatment may be effected using a sulphur-resistant catalyst having reforming and desulphurizing properties such as the oxides of cobalt and molybdenum or cobalt molybdate supported on alumina.  Previously desulphurized sulphur-containing benzoles may be reformed over a platinum-alumina catalyst.  Conditions preferred are a space velocity of 0.5-5 vol./vol./hr. and a gas rate of 0.5-15 mols. of hydrogen per mol. of hydrocarbon.  The subsequent fractionation should be such as to give a narrow benzene heart cut particularly if nitration grade benzene is required.
Patent GB-825478-A (GB)
Title: Improvements in percussion tools
IPC: B25D9/10
Filed: 1958-07-04
Abstract: 825,478. Pistons and cylinders. ATLAS COPCO A.B. July 4, 1958 [July 24, 1957], No. 21480/58. Class 122 (1). [Also in Group XXVII] In a percussion tool operated by compressed air and/or combustion gas the co-operating working surfaces of the hammer piston 7 and its cylinder 8 are of steel and aluminium or aluminium alloy respectively. The rock drill shown is operated by combustion gas and comprises a hardened forged steel hammer piston 7, an aluminium alloy cylinder casing 3, and a combined motor and compressor piston 6 connected by a connecting rod 5 to a crank-shaft 4.
Patent GB-822928-A (GB)
Title: Moulding compositions containing epoxide resins
Inventor: MACKENZIE JAMES BROWN DOUGLAS
IPC: C08G59/56
Filed: 1956-07-11
Abstract: Moulding compositions comprise an epoxy resin, or a polyglycidyl ester of a polycarboxylic acid, and a hardener therefore consisting of a mixture of one or more of aromatic polyamines and less than the stoiochiometric amount of a monobasic carboxylic acid or anhydride. Suitable organic acids are acetic, propionic, hexoic, chloroacetic, benzoic, acids or their anhydrides.  In examples: (1, 4) 100 parts of a liquid epoxy resin obtained by condensation of dihydroxydiphenylpropane with epichlorhydrin are heated to 110 DEG C. and 27 parts 4 : 41-di-amino-diphenylmethane added.  Glacial acetic acid is added and the mixture is allowed to gel or is hardened in a mould in an oven heated to 80 DEG  C.; (2) as in (1) with addition of dibutyl phthalate; (3) as in (1) using 2 parts of benzoic acid in 20 parts of gamma-butyrolactone; (5) the hardener is a mixture of alpha-pyrrolidone and benzoic acid in g -butyrolactone; (6) a solid epoxy resin is used dissolved in triethylene glycol monoethyl ether; (7) a polyglycidylether of glycerol having an epoxy equivalence of 154 is mixed with the monobutylether of diethylene glycol diaminodiphenylmethane and propionic acid and cured at room temperature.  Specifications 791,836 and 814,818 are referred to.
Patent GB-170375-A (GB)
Title: Improvements in and connected with dynamo electric machines
IPC: H02K9/28
Filed: 1920-07-16
Abstract: 170,375. Stone & Co., Ltd., J., and Honey, A. E. July 16, 1920. Commutators. - The ends of the armature windings f are continued beyond their point of connection to the risers g of the commutator segments c and are soldered or clipped to fins h which serve to cool the soldered connections both by direct conduction of heat and by circulating air. The fins are lodged in lugs j on the segments c, and they may project over the risers g. The conductors f may terminate on the fins, or project beyond them to act as radiators.
Patent GB-1096096-A (GB)
Title: Shock resistant plastic containers with self-contained locking means
Inventor: FATTORI LAZZARO ADAM
IPC: G03B21/32
Filed: 1966-05-14
Abstract: 1,096,096. Film reel container. FILM PROCESSORS SUPPLY CORPORATION. May 14, 1966, No. 21523/66. Headings B8F and B8P. [Also in Division E2]  A container 20 comprises an open box, having a side wall 23 standing up from a flat base 22 shaped to receive the flat side of a reel and having corners extending beyond the reel, a fitted cover having a flat top 32 shaped to conform with box base 22, with a peripheral side wall 33 to telescope with side wall 23, each corner of the base 22 and top 32 being formed with aligned wells 24, 34 depressed inwardly having aligned openings, each opening of either box or cover housing a rotatable lock 41 extending through the corresponding wall opening to retain the cover on the box. The walls 34b of one well 34 may extend inwardly to spigot over the other well 24 to engage a cushioning means 26. The wall of the smaller well 24 may extend outwardly to engage the larger well of another container when stacked together. The cover may carry cushioning means 36 for the reel R and base side walls 23 and also a holder 37 for a label. A wire seal W may be threaded through a hole in each of the locks.
Patent GB-1261839-A (GB)
Title: Machine tool
Inventor: LANGENBACH BOB J
IPC: B23B41/00
Filed: 1969-04-28
Abstract: 1,261,839. Machine tool details. ABEX CORP. 28 April, 1969 [13 Aug., 1968], No. 21598/69. Headings B3B and B3C. A machine for drilling vent holes in tyre moulds comprises two rotary indexable worktables 36, Figs. 2, 3, and two drill assemblies, each of which comprises an indexable head 44 carried by an arm 45 slidable on, and pivotable about a column 70 and a long drill 40 constantly supported by two bushings 200, 201, Fig. 10, and driven by a motor 42 secured to a carriage 230, Fig. 7, slidable along guide rods 210. Each of the tables 36 is indexed by a motor M through gears 35, 38. Each of the columns 70 is raised or lowered by a screw 81 driven by a reversible two 'speed motor through a chain and sprocket drive 83, Fig. 3, and is locked in the required position by an air cylinder 91 which actuates a pair of brake elements through a lever 92. Head 44 is indexed about a horizontal axis by a handle H, Figs. 15, 16, which rotates bevel gearing 121, 122, and a worm 125, which moves around a fixed worm-wheel 105, and is locked in the required position by a second handle H1, which moves a sleeve 100 to the right in Fig. 16 so as to lock the head against the worm-wheel. Bevel gears 121, 122, Fig. 15, may be disengaged, and bevel gears 133, 134 engaged by a handle H3, so that a pinion 161 rotates a nut 171, Fig. 16, and causes the drill support 55 to be freed from head 44 so that it may be indexed through 180 degrees. Motor carriage 230, Fig. 7, is moved along the guide rods 240 by a double acting fluid pressure cylinder 241, and a cam 51 carried by the rod 242R of a second cylinder 242 actuates a micro switch 295, Fig. 24, to control the rate of feed and retraction. The extreme positions of the drill are sensed by a linear potentiometer 50, Fig. 7, which operates a pair of servo valves so as to reverse the flow of fluid to cylinder 241. Cutting oil is automatically supplied to the drill in its fully retracted position, through passages 275, 270, 273, Fig. 10, and air for clearing away chips is supplied by passages (280-284), Fig. 9 (not shown). In operation, the rotational speed of the drill is sensed by a tachometer 48, Fig. 24, and the value is compared with a standard r.p.m. If the resistance to drilling increases, the comparator demands a slower drill feed rate, and a servo valve 330 is actuated so as to reduce the fluid supply to cylinder 241. If the drill seizes, the tachometer, and the servo valve 330 reach a predetermined minimum of speed and pressure, and the servo valve is reversed so as to retract the drill.