baber/WOPTO huggingface dataset:
Patent GB-580099-A (GB)
Title: Improvements in wide band valve amplifiers
IPC: H03F1/50
Filed: 1944-02-18
Abstract: 580,099. Valve amplifying circuits ; impedance networks. GENERAL ELECTRIC CO., Ltd., and ESPLEY, D. C. Feb. 18, 1944, Nos. 3045, 6563 and 6728. [Classes 40 (iii) and 40 (v)] A filter connects wide band amplifier to a load, the non- earthy terminal of which is connected by one path through a low capacity condenser to one side of the filter and by at least one further path, consisting of a condenser of larger capacitance arranged in series with an impedance, to a point on the same side of the filter, the points preferably being the junction of series and shunt elements of the filter. Fig. 2 shows the normal coupling condenser Cx which is made of small capacitance to reduce its capacitance to earth C2<1>. which capacitance will form an element of the filter and the loss of lower frequencies is avoided by providing a condenser Cy in series with an impedance which may be part of R2 arranged in parallel with condenser Cx, condenser C3 being in part constituted by its capacitance to earth C3<1>, condenser Cy having a larger capacitance than Cx. In order to reproduce the D.C. component in the load, a rectifier is connected in parallel with R2. Since this will have a considerable capacitance, which will increase the value of C2, a number of rectifiers 6, 6<1> ... 6<11> are connected as shown in Fig. 3, the capacitance of each constituting part of the shunt capacitances C3, C4 ... Cn.
Patent GB-396407-A (GB)
Title: Improvements in or relating to universal joints
IPC: F16J1/22
Filed: 1932-02-02
Abstract: 396,407. Pistons ; connecting-rods. NEVATT, C. G., The Haven, Waterford Road, Henleaze, and KINGSTON, E. G., Clare Street House, both in Bristol. Feb. 2, 1932, No. 3140. [Class 122 (i).] A universal joint for a connecting-rod comprises a cup 17 which is held between a convex surface 15 inside the piston head and a concave cap 20. The surface 15 is formed integral with a flange 14 to which the cap 20 is bolted. The skirt 13 of the piston is supported by six radial ribs 12, the apertures between the ribs permitting access to the bolts.
Patent GB-129583-A (GB)
Title: Improvements relating to Double Flow Steam Turbines.
Inventor: YARROW HAROLD EDGAR
IPC: F01D1/34
Filed: 1919-02-08
Abstract: 129,583. Yarrow, H. E. Feb. 8, 1919. Motor power plant.-A high-pressure turbine A is connected by pipes C, D having valves G, H to two equal and symmetrically arranged lowpressure turbines B1, B2' so that the exhaust steam from the turbine A may be admitted by way of centrally arranged passages E, F to either or both the turbines B1, B2 according to the required power conditions. One of the two valves G, H may be dispensed with.
Patent GB-1026891-A (GB)
Title: Improvements in and relating to electromagnetic radiation sources using electron-beams
Inventor: FOX ALAN JOHN
IPC: H01J25/02
Filed: 1964-01-24
Abstract: 1,026,891. Modulating light by light. MULLARD Ltd. Jan. 21, 1965 [Jan. 24, 1964], No. 3172/64. Heading H3R. [Also in Division H1] Quasi-coherent infra-red electromagnetic radiation is obtained by applying two coherent beams of electromagnetic radiation to a photocathode so as to form a ribbon-like beam of electrons density modulated at the difference frequency of the two input beams, which frequency is the desired infra-red frequency, the beam travelling along the surface of a diffraction grating, whereby in operation the infra-red electromagnetic radiation is emitted at the difference frequency as the result of the interaction of the electron beam with the grating. The two beams are obtained from a helium-neon laser having wavelength of 6328 and a ruby laser having a wavelength of 6943, the emitted radiation having a mean wavelength of 7À144 microns.
Patent GB-104227-A (GB)
Title: Improvements in Crutches for Human Use.
Inventor: CRUDGINGTON HENRY
IPC: A61H3/02
Filed: 1916-03-03
Abstract: 104,227. Crudgington, H. March 3, 1916. Tips.-A rubber tip c is attached to a crutch by a nut b secured within the foot a of the crutch and engaging a screw f passing through the tip. The nut b may be inserted through a saw-cut in the side of the foot, which is afterwards filled in by a block d of wood &c. In a modification, the nut is forced up the bore a<1> in the foot and is secured by friction or by pins g, g<1> inserted laterally through the foot. In a further modification, the nut is provided with projections, and the bore a<1> is formed with corresponding recesses a<2>, which are filled in after the nut is forced home. A metal washer h may be provided between the pad and the foot.
Patent GB-1244933-A (GB)
Title: Method and apparatus for finishing metallic coatings
IPC: C23C2/26
Filed: 1969-01-21
Abstract: 1,244,933. Continuous hot dipping strands. ARMCO STEEL CORP. Jan. 21, 1969 [Feb. 27, 1968], No. 3332/69. Heading C7F. A method and apparatus for the continuous hot dip coating of strands such as wire and tube with e. g. Al, Zn and terne in which the coating metal is allowed to oxidize on the strand as it leaves the bath and a jet of fluid such as air, steam, N 2  or A is then tangentially directed at the coating to break up the oxide and control the coating weight. As shown in Fig. 1 the strand 10 is cleaned and conveyed via a protective atmosphere chamber 12 to coating bath 14 where an excess of coating metal is applied using an exit die 16. Alternatively excess metal may be applied by pouring metal over the strand or passing it through a trough of molten metal. A jet nozzle 20 is located at a sufficient distance from the bath to allow an oxide film to form on the coating. A gas is introduced into the nozzle via 44 and is tangentially directed on to the coating to remove excess metal which is collected in trough 46 and recirculated to the coating bath 14. The strand passes through a central bore of the nozzle holder and a series of jets are directed on to the strand counter to the strand movement from a series of slots arranged in the nozzle body.
Patent GB-699193-A (GB)
Title: Improvements in or relating to vinyl chloride resin compositions and articles
IPC: C08L27/06
Filed: 1951-02-13
Abstract: A composition stable to heat and light and resistant to discoloration by hydrogen sulphide comprises polyvinyl chloride or a copolymer containing at least 80 per cent vinyl chloride, 0.5 to 5 per cent of an organic cadmium compound heat and light stabilizer, and 0.5 to 10 per cent of a urea- or melamine-formaldehyde condensate, these percentages being based on the weight of resin.  Suitable cadmium compounds are the alkyl mercaptides containing two alkyl groups each containing 5 to 26 carbon atoms, e.g. cadmium dilauryl mercaptide; other mercaptides, e.g. cadmium diphenyl mercaptide; salts and soaps, e.g. cadmium diacetate, dibutyrate, dilaurate, dioleate and diabietate; and organo-metallo compounds, e.g. dilauryl cadmium.  The aminoplasts include adducts such as methylolurea, dimethylolurea and the mono-, di- and tri-methylol adducts of melamine and condensates in the A or B stages.  These latter may be alkylated and may have condensed therein minor proportions of aliphatic alcohols. Compounds which may be copolymerized with vinyl chloride are those containing a CH2=C< group and a long list is given, including coumarone and indene.  The compositions may contain plasticizers, e.g. a diester of triethylene glycol with mixed saturated aliphatic monobasic acids of 6 to 8 carbon atoms, and di-(2-ethyl hexyl phthalate), and be formed into films and used, for example, as refrigerator bowl covers, or with fillers such as kaolin and titanium dioxide used for the manufacture of artificial leather.
Patent GB-311204-A (GB)
Title: Improvements in or relating to apparatus for separating fat or other material from gases
IPC: B01D45/08
Filed: 1928-02-03
Abstract: 311,204. Lyons & Co., Ltd., J., and Catlin, G. W. Feb. 3, 1928. Separators.-Apparatus for separating fat and other material from air or other gases comprises means for drawing off the mixture laterally from opposite sides of a space in which the mixture is formed, the mixture then encountering in another chamber baffles which retain the fat &c. Fig. 2 shows an elevation of the apparatus in which a mixture of fat and air is produced in a chamber 4 by means of a series of fat-spraying nozzles 5 used for dressing cake tins, which pass through the chamber at the point 6. The fat-laden air is withdrawn laterally from the chamber 4 through ducts 2, 3, and is led into a chamber 7 provided with baffles 8 arranged to produce a tortuous passage as shown in Fig. 1. The baffles retain the fat, which is kept in a molten state by a hot water jacket 9 and collects at the bottom of the chamber, from which it can be withdrawn through a cock 10. The air escapes through a port 10 . An opening 12 between the chambers 4, 7 enables any fat not drawn through the ducts 2, 3 to fall directly into the chamber 7.
Patent GB-556736-A (GB)
Title: Manufacture of carbinol compounds of ring-d-homo-steroids or esters or ethers thereof
IPC: C07J63/00
Filed: 1941-03-14
Abstract: 556,736. Ring-D-homo steroid compounds. SOC. OF CHEMICAL INDUSTRY IN BASLE. March 14, 1941, No. 3511. Convention date, March 14, 1940. [Class 2 (iii)] . Carbinol compounds of the ring-D-homo steroid series are prepared from ketones of this series by treatment with a reducing agent known to be capable of reducing a ketone to a secondary alcohol, if desired with temporary protection of any double linkages or substituents capable of being reduced by the process. Substituents mentioned include esterified or etherified hydroxyl groups, substituted and unsubstituted hydrocarbon groups such as alkyl, alkenyl, alkinyl, alkylene, acyl or ketol groups, free or esterified carboxyl, amino or thiol groups or further carbonyl groups in the form of their derivatives such as in the form of enol esters and ethers. Parent materials for the process of the present invention are prepared by the process of Specification 556,734. Reducing agents, chemical, biochemical or electrochemical agents and particularly those used in the processes of Specifications 428,132, 428,133, 429,747, 446,501, 447,185, 448,225, 467,107, 468,123, and 475,068. The compounds produced by this invention have the character of the sexual hormones or of the suprarenal cortical hormones. The compounds may if desired by esterified or etherified. In examples (1) #<SP>4</SP>-3:17α-diketo-D-homo-andro stene is converted by ethyl orthoformate into 3-mono-enolethyl ether and this reduced by sodium in alcohol to #<SP>4</SP>-3-keto-17-α-oxy-D- homo-androstene. The reduction may also be carried out by nascent hydrogen produced electrolytically or by means of an alkali amalgam. Other reducing agents are catalytically activated hydrogen and Grignard compounds. The 3-keto group may also be protected by the formation of a ketal or a hydrazone. The carbinol formed, may if desired be esterified. Other starting materials mentioned include 3:17 α-diketo-D-homo-androstane, 3-keto-17α- oxy - D - homo - androstane, 3 - oxy - 17α - keto - D - homo - androstane and #<SP>1</SP>.<SP>3</SP>.<SP>5</SP>- 3-oxy-17α-keto-D-homo-oestratriene. (2) #<SP>4</SP>- 3:17 - α - diketo - D - homo - androstene - 3 - mono - enol - methvl ether is treated with a Grignard reagent prepared from magnesium and methyl iodide, to give #<SP>4</SP>-3-keto-17α-oxy-17α- methyl-D-homo-androstene. Similarly there may be reduced parent compounds having in the 17- sents hydrogen or an acyl group and R<SP>1</SP> represents hydrogen on a monovalent hydrocarbon residue. The new carbinols may be converted into their esters or ethers or by treatment with hydrocyanic acid into their cyanhydrins.
Patent GB-235256-A (GB)
Title: Improvements in endless tracks for vehicles
IPC: B62D55/20
Filed: 1924-02-11
Abstract: 235,256. Roadless Traction, Ltd., and Penn, O. S. Feb. 11, 1924. Endless-track vehicles.-In endless tracks having links coupled together by pins so that limited universal movement is allowed between adjacent links, the pins pass through holes in lugs on the links, the diameters of the holes being greater than the diameters of the parts of the pin passing through them. The pin d also passes through holes in the lugs k on the adjacent link, and through a bush e having a spherical portion housed in the spherical seating f carried by the male end g of the link a. The paths b for the weight-carrying rollers are arranged on each side of the teeth c and above the joint pin. Specifications 215,106 and 227,515 are referred to.
Patent GB-955385-A (GB)
Title: Apparatus for inspecting stockings and socks
IPC: D06H3/16
Filed: 1963-01-29
Abstract: 955,385. Inspecting stockings. P. A. GAZZANIGA. Jan.29, 1963 [May 15, 1962], No. 3540/63. Heading D1S. Apparatus for inspecting stockings and socks comprises two rotatable tubes 7 and means 11 for the internal illumination thereof, the tubes 7 being mounted so as to be selectively aligned, Fig. 2 (not shown), so that a stocking may be turned inside out from one tube to the other or misaligned, Fig. 1, to facilitate positioning of a stocking on or the removal of a stocking from either of the tubes 7. Each tube 7 comprises a glass or translucent synthetic plastic casing 14 surrounding a lamp 11, e.g. a neon tube, and being supported by a bush 13 rotatably mounted by bearings 12 in a sleeve 6<SP>1</SP> secured to the boss 5. The casing 14 may be replaceable by similar casings of different sizes according to the stocking size. The tube 7 on the right-hand side of Fig. 1 is moved to the position shown by depressing a foot pedal 24 which rotates a lever pivoted at 22, Fig. 4, clockwise through a rod 21 so that a projection 21 releases a protrusion 20 on the boss 5 to allow an adjustable-tension spring 16 to rotate the boss 5. In use, a stocking is slipped on to the right-hand tube 7 which is brought back mannually to the horizontal and which is then manually turned to inspect the stocking. The stocking is turned inside out on to the left-hand tube 7 and the other side thereof inspected. The lever 24 is depressed to raise the right-hand tube 7 and the stocking removed. A counter (not shown) may be operated by the pivotable tube 7 to indicate the number of operations performed. An additional lamp (not shown) may be provided to illuminate the stocking from the outside and the three lamps may be actuated by three independent switches.
Patent GB-398474-A (GB)
Title: Improvements in or relating to the production of highly polymerised aliphatic alcohols
IPC: C10M109/02
Filed: 1932-02-06
Abstract: Highly polymerized aliphatic alcohols containing three or more hydroxy groups, free from di- and tri-polymers are made by heating the alcohol at 250-275 DEG  C. in the presence of condensing agents consisting of heavy metal salts, e.g. mercuric chloride or sulphate, or cuprous or ferric chloride, removing the water formed by a stream of inert gas, such as carbon dioxide, nitrogen or a rare gas, and further heating to form a highly viscous product. In an example, glycerol is heated at 250 DEG  C. with a small amount of cuprous chloride in a stream of inert gas.  The catalyst is decomposed by treating the reaction mass with sulphuretted hydrogen and the resulting precipitate is removed.  Small amounts of di- and tri-polymers are removed by distillation in vacuo. Glycerol may be replaced by chlorinated glycerol or by a mixture of glycerol and a higher alcohol containing more than three hydroxy groups.ALSO:An explosion-proof lubricant for use in compressors, valves, &c. contains a mixture of higher polymers of aliphatic alcohols containing three or more hydroxyl groups, free from di-and tri-polymers.  The higher polymers are made by heating glycerol or similar alcohol to 250-275 DEG  C. in presence of condensing agents consisting of heavy metal salts, e.g. mercuric chloride or sulphate, or cuprous or ferric chloride, removing the water formed by treating the reaction mixture with a stream of inert gas, and further heating to form a highly viscous product.  Small amounts of di- and tri-glycerins are removed by distillation in vacuo. Glycerine may be replaced by chlorinated glycerine or by a mixture of glycerine and higher alcohols containing more than three hydroxy groups.  Inert gases specified are carbon dioxide, nitrogen or a rare gas.  To form a lubricant the highly polymerized glycerines are preferably mixed with water and a hygroscopic substance such as magnesium chloride or a lactate.  If desired, the lubricant may be brought to an ointment consistency by incorporating tragacanth, talcum &c.  The polymerized alcohols may also be employed for softening shellac and other resins and rendering them soluble in water or alcohol.ALSO:Gelatin or glue is softened and rendered soluble in water by adding preferably 2-10 per cent of polymerized aliphatic alcohols containing three or more hydroxy groups, free from di- and tri-polymers.  Polymers of glycerol or a mixture of glycerol and higher alcohols containing more than three hydroxy groups may be used.
Patent GB-655625-A (GB)
Title: Improvements in or relating to the manufacture of a cork composition
IPC: C08L97/00
Filed: 1948-02-09
Abstract: A cork composition is obtained by forming a mixture including granulated cork and a synthetic rubber latex, coagulating the latex and moulding the resultant mixture preferably under vulcanizing conditions.  The proportion of cork to rubber solids may be from 1/2 to 2 parts to 1 part respectively. Preferred rubbers are neoprene, polybutadiene and copolymers of butadiene with styrene or acrylonitrile.  Coagulation may be effected by coagulants or by removal of water at sub-atmospheric pressure.  The product may be modified by the addition of solvents such as butyl acetate, acetone, benzene or xylene and by the addition of stabilizing agents such as "Darvan," "Aquarex D," sodium lauryl sulphate, isopropyl naphthalene sodium sulphonate, casein, glue, bentonite or soap.  Plasticizers such as light mineral oil, dibutyl phthalate, dipolymer oil and low-melting point coumarone-indene resins may also be added.  In examples, a neoprene or a butadiene-acrylonitrile latex was compounded with substances chosen from phenyl b -naphthylamine, lithopone, zinc oxide, sulphur, stearic acid, benzothiazyl disulphide, diphenyl guanidine, and light mineral oil was mixed with granulated cork with or without an organic solvent and was coagulated and moulded.ALSO:A cork composition is obtained by forming a mixture including granulated cork of 5-50 mesh per inch mesh, and a natural or synthetic rubber latex, coagulating the latex and moulding the resultant mixture, preferably under vulcanizing conditions.  The proportion of cork to rubber solids may be from 1/2 to 2 parts to 1 part, respectively.  Preferred synthetic rubbers are neoprene, polybutadiene, and copolymers of butadiene with styrene or acrylonitrile.  Coagulation may be effected by coagulants or by removal of water at sub-atmospheric pressure.  The product may be modified by the addition of solvents such as butyl acetate, acetone, benzene, or xylene and by the addition of stabilizing agents such as "Darvan," "Aquarex D," sodium lauryl sulphate, isopropyl naphthalene sodium sulphonate, casein, glue, bentonite or soap.  Plasticizers such as light mineral oil, dibutyl phthalate, dipolymer oil and low melting point coumarone indene resins may also be added.  In examples, a neoprene or a butadiene-acrylonitrile latex was compounded with substances chosen from phenyl b -naphthylamine, lithopone, zinc oxide, sulphur, stearic acid, benzothiazyl disulphide, diphenyl guanidine, and light mineral oil, was mixed with granulated cork with or without an organic solvent and was coagulated and then moulded.
Patent GB-1374529-A (GB)
Title: Benzodiazepines
IPC: C07D243/12
Filed: 1972-01-26
Abstract: 1374529 Benzodiazepines BOEHRINGER INGELHEIM GmbH 26 Jan 1972 [27 Jan 1971] 3719/72 Heading C2C Compounds of the general formula (R<SP>1</SP>=H, alkyl, alkenyl, hydroxyalkyl, cycloalkylalkyl; R 2 =unsubstituted or substituted Ph or Py; R 3 = halogen, CF 3 , NO 2 ) are prepared by (a) reducing a compound of the formula (b) mild oxidation of a compound of the formula (R 4 , R 5 =H, alkyl), or (c) reacting a compound of the formula (R 1  not H) with water, optionally followed in the case of (a) and (b) by introduction of a 1- substituent. The above compounds are tranquilizers and anti-convulsants, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-161762-A (GB)
Title: Improvements in automatic vacuum feed devices for delivering fuel to carburetters
IPC: F02M37/02
Filed: 1920-02-06
Abstract: 161,762. Ebsworth, R. H. Feb. 6, 1920. Vacuum apparatus. - In a vacuum fuel-feed apparatus for carburet. tors of the type in which the vacuum and atmospheric valves are actuated by a float in a direction transverse to the line of movement of the float, the valve seats 11, 12 are arranged in the wall of the casing, so that a transparent cover 36 may be used. The float 16 may act through a lever 8, which is connected at one end to the valve rods, and at the other to the float rod through a tensioned link, such as a spring 30 adapted to give a snap action. The connection of the spring with the lever may be adjusted. The spring 30 is balanced by another spring 31 or by two rods connected to the float rod and pivoted to the pivots of the lever 8. The rods of the valves 9, 10 are connected by a removable pivot 24, so that the valves may be removed. The valved connection 20 between the vacuum and feed chambers is also removable. The inlet 35 for the fuel is directed upwards, so that the fuel washes the underside, of the cover.
Patent GB-844917-A (GB)
Title: Method of and apparatus for making plastic articles
IPC: B29C48/09
Filed: 1959-02-03
Abstract: 844,917. Moulding hollow articles. OWENSILLINOIS GLASS CO. [Feb. 3, 1959], No. 3734/59. Class 87(2). The neck and shoulder portions of a container are injection moulded, and the body of the container extruded, the shoulder and body portions being subsequently blowmoulded. Separate injection moulds 45, 46 are provided for the shoulder and neck portions respectively, the moulds 45, 46 co-operating with core pieces 42, 47 respectively. Severing of the extruded portion from the supply may take place below the mould 45, Fig. 4 (not shown), or above it, Fig. 5 (not shown). The apparatus and process are otherwise as in Specification 841,550. Specification 809,534 also is referred to.
Patent GB-556169-A (GB)
Title: Improvements in or relating to apparatus for heating gas streams
IPC: F23Q3/00
Filed: 1942-03-20
Abstract: 556,169. Heating gases. GAS LIGH r & COKE CO., SILVER, L., and MACCORMAC, M. March 20, 1942, No. 3746. Addition to 535,482. [Class 64 (i)] In apparatus for heating a stream of combustible gas in a main 11 by direct contact with the products of combustion from ignited gas taken from the main stream as described in the parent Specification, the igniter 20 is disposed outside the gas main instead of inside. Gas is drawn from the main into a combustion chamber 10 through openings 14 by air supplied under pressure to a nozzle 12, through a conduit 15 containing a cock 17 which is closed when the apparatus is not in use. Drain cocks 18, 19 are provided on either side of the cut-off cock 17. At starting, the cut-off cock is opened to allow gas to flow back to a mixing chamber containing the igniter and the resulting flame is then forced forward into the combustion chamber by pressure of the air supplied to the chamber through an inlet 13. In a modification, the igniter is placed in a mixing passage between an external air nozzle and the internal combustion chamber.