baber/WOPTO huggingface dataset:
Patent GB-1382853-A (GB)
Title: Production of epoxy stearic acid esters
IPC: C07D303/42
Filed: 1972-05-03
Abstract: 1382853 Epoxy stearic acid esters DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 3 May 1972 [14 May 1971] 20559/72 Heading C2C Epoxidized stearic acid esters are prepared by reacting a mixture of saturated and unsaturated fatty acids (up to 18C) or their esters with a percarboxylic acid, converting the esters to those with an alkanol (1-3C) and distilling under reduced pressure to separate the epoxy stearic acid ester. Oils and fats such as beef tallow, groundnut, olive, palm, cottonseed, tapeseed, sesame, soya, sunflower, linseed, perilla, oiticica, fish, train and tung oils or mixtures thereof may be used and peracetic acid is the preferred agent. The epoxy acids are transesterified with alkanols in the presence of alkali, the alkali removed and the esters fractionally distilled. A further transesterification, e.g. with titanium tetraisopropylate or tetrabutylate may be used. Examples describe the treatment of beef tallow.
Patent GB-151445-A (GB)
Title: Improvements in or relating to gas producers
IPC: C10J3/80
Filed: 1919-08-21
Abstract: 151,445. Yeo, O. E. Aug. 21, 1919. No Patent granted (Sealing fee not paid). Producers.-A producer for the continuous, generation of water-gas and producer gas, with or without coal gas, contains a tubular fuel chamber s extending through the combustion zone into the lower part of the fuel-producing retort, and fitted with a steam-supply pipe v. The producer gas generated in the combustion chamber b passes through openings e to a jacket d<1> surrounding the retort c, and may be burnt or not before reaching an outlet h; or part of the gas may pass through. the retort. The water-gas generated in the chamber s, and the coal-gas evolved in the retort, escape through an outlet m. Alternatively, water or steam may be supplied to the retort through an inlet at the top and the gas withdrawn through the pipe v.
Patent GB-1112566-A (GB)
Title: Silyl substituted hydropyridine compounds
IPC: C07D211/70
Filed: 1966-05-10
Abstract: Novel hydropyridine compounds in which the nitrogen atom has an organo-substituted silyl group attached directly thereto are prepared by reacting a pyridine compound with an SiH compound in the presence of a metal selected from palladium, rhodium, nickel, platinum, iridium and ruthenium.  The SiH compound may be a silane or a polysiloxane containing silanic hydrogen; that is it may be a silane or the formula RSiH3, R2SiH2 or R3SiH; a siloxane having unit formula RHSiO, R2HSiO 1/2 or RH2SiO 1/2 or siloxane copolymers having units of the formulae HSiO1.5, H2SiO, RHSiO, RH2SiO0.5, R2SiO or R3SiO0.5. The radical R may be hydrocarbon such as alkyl, aryl, aralkyl, alkaryl and alkenyl or organoxy.  Pyridine compounds which may be used are pyridine, quinoline, acridine and their hydrocarbon-substituted derivatives where the hydrocarbon groups have the same meaning as R.  In the Examples pyridine is reacted with trimethylsilane to give 1-trimethylsilyl-1,2,3,6 - tetrahydropyridine, 1 - trimethylsilyl - 1,2,3,4 - tetrahydropyridine, 1 - trimethylsilyl - 1,2 - dihydropyridine, 1 - trimethylsilyl - 1,4 - dihydropyridine, 1,5 - (di-trimethylsilyl) - 1,2,3,4 - tetrahydropyridine and 1,5 - (ditrimethylsilyl) - 1,2 - dihydropyridine; 3 - picoline is reacted with trimethylsilane to give 1 - trimethylsilyl - 3 - methyl - 1,4 - dihydropyridine, 1 - trimethylsilyl - 3 - methyl - 1,2 - dihydropyridine and 1 - trimethylsilyl - 3 - methyl - 1,6 - dihydropyridine; 4 - picoline is reacted with trimethylsilane to give the - 4 - methyl - 1,4 - and 1,2 - dihydropyridines, the - 4 - methyl - 1,2,3,4 - tetrahydropyridine and 4 - trimethylsilylmethylpyridine. 1 - Trimethylsilyl - 4 - hydropyridine will react with formaldehyde, benzaldehyde and acetone. The reaction of pyridine with polydimethylsiloxane gives a hydropyridine terminated polysiloxane which on exposure to air or oxygen gives a hydroxy-terminated polydimethylsiloxane.
Patent GB-1394202-A (GB)
Title: Device for maintaining a working fluid at a pressure sub stantially following a predetermined law of variation
IPC: F15B1/02
Filed: 1972-05-03
Abstract: 1394202 Boring earth &c INSTITUT FRANCAIS DU PETROLE 3 May 1972 [3 May 1971] 20588/72 Heading E1F [Also in Division Fl] Apparatus for maintaining pressure in the working cylinder of a jack 11 comprises a source 20 of pressurised hydraulic fluid, a jack 14 pivoted at 15, a jack 16 pivoted at 17 and connected to the jack 14 by an articulated joint 18, and a guide 19 for the joint, the jack 14 being inclined to the guide at all positions of the joint, the jack 14 or 16 being connected to the source 20, and the jack 16 or 14 being arranged to provide working fluid at the maintained pressure. Each of the jacks 14, 16 may be replaced by a pair of jacks in parallel to form a group and groups may be arranged in series, the jacks 14 of the first group being connected to the source and the jacks 16 of the last group being connected to the jack 11. In drilling from a floating installation having a vertical movement of hm the pressure applied to the jack 11 ensures that the drill string (not shown) supported from the hook 3 carried by the jack 11 is maintained under a substantially constant tension The source is a hydropneumatic accumulator but an accumulator in which the working fluid may be subjected to pressure from a spring may be used. The jack 16 may be in line wth the guide.
Patent GB-365106-A (GB)
Title: Improvements in and relating to steel alloys
IPC: C22C38/08
Filed: 1930-07-08
Abstract: A steel alloy contains 25-40 per cent of nickel, up to 8 per cent of molybdenum, 1-8 per cent of copper, and up to 1 per cent of carbon. Up to 10 per cent of tantalum may be added, and the nickel may be wholly or partly replaced by cobalt.
Patent GB-685235-A (GB)
Title: Improvements relating to electric direct current generators
IPC: H02K23/42
Filed: 1950-08-21
Abstract: 685,235. Exciting dynamo-electric machines. REYROLLE & CO., Ltd., A., and BAYLES, J. W. Aug. 21, 1951 [Aug. 21, 1950], No. 20663/50. Class 35. A D.C. generator having a drooping characteristic for welding, has split poles A comprising saturated main poles A<SP>1</SP> producing a constant flux and auxiliary poles A<SP>2</SP> whose flux is reduced or reversed by armature reaction, a field winding J being connected across the load F which is fed through a ballast resistor E. The machine has a shunt winding H and may be additively or subtractively series compounded by means of a winding K in parallel with the ballast resistor as shown, or by a simple series winding. Separate windings may be provided on the poles A<SP>1</SP> A<SP>2</SP> and an auxiliary brush may be employed. Specifications 421,734, 495,779, 503,155, 534,016, 546,084 and 555,997 are referred to.
Patent GB-499364-A (GB)
Title: Bogie for railway vehicles
IPC: B61F3/16
Filed: 1938-07-13
Abstract: 499,364. Railway - vehicle bogies. SCHWEIZERISCHE LOKOMOTIVUND MASCHINENFABRIK. July 13, 1938, No. 20806. Convention date, July 13, 1937. [Class 103 (vi)] In a railway vehicle bogie of the kind in which the wheels 2 are mounted on independent stub-axles, the body is supported on bearings on a pair of side frames 1 to which are pivoted independent U-shaped frames 3 carrying the wheels and axle-boxes, the supporting springs for the frames 1 being disposed between these frames and the axles. In the construction shown in Figs. 2, 4 and 5 the frames 1 are of hollow girder construction and are connected to the axle-boxes by pairs of longitudinal leafsprings 6. On the upper surfaces of the frames 1 are mounted circular bearing-plates 7 adapted to receive pivot plates 8 on the under side of a body bolster 12. The outer ends of the U-shaped frames 3 are interconnected by gauge bars 13. In a modification, Fig. 6, extended side-frames are employed in conjunction with helical springs 14 bearing directly between the side-frames and axle-boxes, while the vehicle body is suspended by swing links 21 from a bolster 18 supported on short transverse leaf springs 17. In a still further construction, Fig. 10 (not shown), quarter elliptic springs are employed for supporting the side-frames.
Patent GB-208136-A (GB)
Abstract: 208,136. AndrÚ, V. F. N. A. Dec. 6, 1922, [Convention date]. Honeycomb-tube apparatus. -A radiator is constructed by assembling air tubes of an elongated hexagonal section at each end, the intermediate parts, forming the walls of the water channels when assembled, being narrowed to a cross section which may take the form shown in Fig. 3.
Patent GB-1491067-A (GB)
Title: Transistor amplifiers
IPC: H03F3/30
Filed: 1975-05-16
Abstract: 1491067 Transistor amplifier SONY CORP 16 May 1975 [23 May 1974] 20908/75 Heading H3T A push-pull amplifier comprises an output stage of two triode-like FET's Q 3 , Q 4  in series across a supply B +, B - via an impedance at each end R 5 , R 6 , the common point of the two FET's leading to an output terminal; in a driver stage also two triode-like FET's Q 1 , Q 2 , both driven by the same signal, are connected between a respective supply terminal and a reference point (ground), via impedances on both sides of each FET-R 1-4 , the terminal of each FET which is connected to the supply providing the input for the corresponding FET in the output stage. The D.C. gate bias voltage of FET's Q 1 , Q 2  is controlled by the drop across source loads R 1 , R 2 , while the bias of FET's Q 3 , Q 4  depends on the difference in the drops across R 5  and R 3 , or R 6  and R 4 , and can be set after the bias current through Q 1 , Q 2  has been established. All four source loads are preferably decoupled by capacitors. Then if the A.C. impedance of Q 3  or Q 4  as seen in circuit from their common drain is chosen to be double the load impedance, and R 1-4  all equal are large compared with the impedance of Q 1  or Q 2 , the overall voltage gain is shown to be the product of the voltage amplification factors of an FET in each stage. Preferably both pairs of FET's are made according to the drawing (Figs. 1, 2, not shown) to exhibit triode-like characteristics (Fig. 3, not shown).
Patent GB-1389735-A (GB)
Title: Torsional vibration damper
IPC: F16F15/14
Filed: 1972-05-05
Abstract: 1389735 Torsional vibration dampers METZELER AG 5 May 1972 [6 May 1971] 20987/72 Heading F2S In a torsional vibration damper of the resiliently tuned inertia weight type, the inertia weight 1 is supported on the hub 2 by at least one elastomeric element 5 under radial precompression in the gap 3 between the hub 2 and the inertia weight 1. The gap 3 is of constant width, but does not lie at a constant distance from the axis of the damper, and the elastomeric elements are located at the places where the gap approaches the axis. The elastomeric element 5 can be V-shaped in cross-section as shown and Fig. 3 (not shown), U-shaped (Fig. 5, not shown), square or rhombic (Figs. 6 and 7, not shown), oval (Fig. 8, not shown) or form part of a circle (Fig. 4, not shown). The elastomeric element can be sandwiched between metal elements before being inserted in the gap 3. It may instead have a core of harder material (Fig. 7). A plurality of elastomeric elements may be joined together into a ring (Fig. 10, not shown) and inserted as a whole into the gap. This ring may be sandwiched between inner and outer metal rings. The elastomeric element can be formed with ridges (6, 7, Fig. 3) which engage in grooves (8, 9, Fig. 1, not shown) in the hub and the inertia weight to prevent relative axial movement of the hub and inertia weight. Alternatively the element can be secured in the gap.
Patent GB-326737-A (GB)
Title: Improvements in manholes
IPC: E02D29/14
Filed: 1929-07-09
Abstract: 326,737. Southall, J. July 9, 1929. Manhole frames.-A rectangular manhole frame comprises two parts A, B abutting along a horizontal joint, and the top surface C of the lower part A of the frame is machined true and supports the manhole cover, which is prcvided with a machined undersurface. The two parts A, B may be secured together by bolts or studs E, and the bottom surface of the frame part B may also be machined true.
Patent GB-517035-A (GB)
Title: Improvements in or relating to a method of and apparatus for reducing the cross-sectional area of wire, rod, bar, strip or like bodies
IPC: B21C1/12
Filed: 1938-07-15
Abstract: 517,035. Automatic control systems. STEVENS, A. H. (Stringfellow, H. A.). July 15, 1938, No. 21053. [Class 38 (iv)] [Also in Groups XXII and XXXVII] Relative speed.-Wire, rod, strip &c. is reduced in cross-section by applying opposed pulling and retarding forces at longitudinally spaced points on opposite sides of means, such as a drawing- die or rolls, for applying lateral pressure; to effect longitudinal motion therethrough, the forces being automatically variable on variation in resistance to forward movement, in such manner that a substantially fixed ratio is maintained between them. In the form shown in Figs 1 and 2, wire from a reel 12 passes between spring pressed rollers, 7, 8 geared to a retarding motor 11, round a drum 5 geared to a retarding motor 6 and through the drawing die 2 to a wire pulling and coiling block 3 driven by the driving motor 4. The motors 4, 6, 11 are driven from mains 14, 15, motors 6 and 11 being manually adjusted by means of variable resistances 24, 20. A part 29 of the winding of the driving motor 4 is in series with a part 30 of the winding of the motor 6 so that the torque applied to the motor 6 varies with the load on the motor 4 and the ratio of forward and backward pull on the wire remains substantially constant in spite of variations in the resistance between the die and the wire. When'drawing a tube or rod, the work is held at its end in slidable blocks attached by cables to the driving and retarding drums. Wire may be submitted to a number of drawing operations as shown in Fig. 5, each stage comprising a pulling block 45 retarding drum 44 and die 41. Between each drawing unit a weighted pulley 46 takes up slack and the rise and fall of the pulley is utilized to move the contact arm of a variable resistance in the circuits of the driving motors so as to synchronise the various units. On the breakage of a die or of the wire, the considerable upward or downward movement of the pulley resulting therefrom may operate a limit switch to stop the machine.
Patent GB-974139-A (GB)
Title: Curable epoxy resin compositions
IPC: C08G59/40
Filed: 1962-05-31
Abstract: A complex is stated to be made by reacting a hydroxy carbonyl compound of the formula <FORM:0974139/C1/1> or compounds which react to yield such a hydroxy carbonyl compound, where R, R1 and R11 are each hydrogen or an alkyl group of 1 to 4 carbon atoms, R1 and/or R11 being alkyl, with an aliphatic polyamine containing at least four carbon atoms and at least two primary and/or secondary amino groups. Specified hydroxy carbonyl compounds are diacetone alcohol and aldol. Specified polyamines are diethylene triamine, triethylene tetramine, 3:31-aminobispropylamine, aminoethylethanolamine and methylaminoethylethanolamine.  Examples describe the preparation of complexes from (V) diacetone alcohol and diethylene triamine; (VI) diacetone alcohol and 3:31-aminobis-propylamine and (VII) b -hydroxybutyraldehyde and diethylene triamine.ALSO:A heat curable adhesive composition stable at room temperature comprises an epoxy ether and an amine formed by the reaction between (1) either a hydroxy carbonyl compound of the formula <FORM:0974139/C3/1> or compounds which react to yield such a hydroxy carbonyl compound, where R, R1 and R11 are each hydrogen or an alkyl group of 1 to 4 carbon atoms, R1 and/or R11 being alkyl and (2) an aliphatic polyamine containing not less than four carbon atoms and at least two amino groups each of which is either primary or secondary.  The examples describe the preparation of epoxy resins from bis-phenol and epichlorohydrin and the admixture thereof with complexes made from diacetone alcohol and diethylene triamine.  The adhesives are used to bond abrasive grains to flexible backings.ALSO:A coated abrasive sheet comprises a flexible backing member having abrasive grains bonded thereto by a heat-cured adhesive composition comprising an epoxy ether and an amine made by reacting a hydroxy carbonyl compound of the formula <FORM:0974139/C4-C5/1> or compounds which react to yield such a hydroxy carbonyl compound, where R, R1 and R11 are each hydrogen or an alkyl group of 1 to 4 carbon atoms, R1 and/or R11 being alkyl, with an aliphatic polyamine containing at least four carbon atoms and at least 2 primary and/or secondary amino groups. In Example VIII a rubber impregnated kraft paper is presized with a vinyl-chloride-butadiene-acrylonitrile copolymer and back saturated with a phenolic resin, the adhesive and silicon carbide grit then being applied, specified adhesives being an epoxy resin derived from bis-phenol-A and epichlorohydrin admixed with a diacetone alcohol-diethylene triamine complex.  A further example is given.
Patent GB-475679-A (GB)
Title: Improvements in or relating to lubrication apparatus
IPC: B65G45/08
Filed: 1936-07-30
Abstract: 475,679. Force - feed lubricating. GAS LIGHT & COKE CO., and LAWS, W. C. July 30, 1936, No. 21107. [Class 12 (iii)] Relates to lubricating- apparatus embodying a lubricating gun and mechanical means driven in synchronism with the traversing movement of the part to be lubricated so as to bring the gun periodically into engagement with the said part and eject lubricant thereto during the said engagement. According to the invention the lubricant gun is pivoted to a pin eccentrically disposed in a rotary member driven in synchronism with the part to be lubricated, resilient means being provided to locate the gun in position to engage the said part but permit of its pivotal movement during such engagement. As shown the spindles b connecting the links a of a conveyer chain are lubricated by a lubricant gun k which is pivoted on a pin mounted eccentrically on a disc i. A second disc p geared to the disc i carries an eccentric pin q to which the gun is connected by a spring r. The disc i is driven by chain gearing n, n<1>, n2, from a cross shaft g which is rotated by a sprocket wheel f driven by the rollers d of the conveyer chain. In operation, the gun k rotates bodily but remains substantially perpendicular to the line of movement of the conveyer chain so as to engage successive nipples m thereon. The pins j, q, may be adjustable on the discs i, p, and the position of the gun on the pin j and the tension of the spring r may also be adjustable. The sprocket wheel f is freely mounted on the shaft g, and is clutched thereto when desired by a clutch member y<1>. The latter is splined to the shaft g and has a pin y<2> engageable with a hole x<1> in the sprocket wheel f. The member y<1> is operated from a hand lever z. A rotary brush t for cleaning the nipples m is mounted on a cross shaft u driven from a cross shaft h carrying the disc i, and a hand lever w may be used to move the brush t into the operative position. The sprocket wheel f or the chain wheels n<1>, n<2>, may be adjustable angularly in relation to the parts on which they are supported to enable correct synchronism of the discs i, p, with the nipples m to be obtained. Specifications 385,063 and 419,480 are referred to.
Patent GB-1204971-A (GB)
Title: Hoses
Inventor: KNAPP HEINRICH
IPC: F16L33/30
Filed: 1968-05-03
Abstract: 1,204,971. Hose pipes; flanged pipe joints. TRANSPORTGUMMI VEB. 3 May, 1968, No. 21180/68. Headings F2G and F2P. A hose, which can be exposed to high pressure and used for conveying fuels, oils &c., comprises a hose body 1 which includes an electrically conductive rubber, or elastomer, portion containing acetylene black, and a hose end fitting 2 of zinc, cadmium, a material containing zinc or cadmium, or a galvanized or cadmium plated material, the hose end fitting being bonded to the hose body by means of a cobalt thiocyanate complex soluble in rubber. As shown, a galvanized fitting 2 is secured to a hose body 1 by means of a bonded layer 3 which contains 1À6% of a cobalt thiocyanate, complex produced from equivalent quantities of COCl 2  6H 2 O and NH 4 SCN and soluble in a rubber solution. The bonded layer 3 is located between the fitting 2 and the thick oil-resistant electrically conductive rubber layer 4 containing textile reinforcing plies 5 and a reinforcing helix 6 bonded to the layer by means of a bonding agent as used for the layer 3. Folded strips 8 are provided between the plies 5 and the hose has an oil-resistant outer covering layer 7.
Patent GB-1340110-A (GB)
Title: Method of forming articles having hollow interiors of complex  and/or branching configuration
IPC: B29C61/00
Filed: 1971-04-19
Abstract: 1340110 Junction pieces JOHNS-MANVILLE CORP 19 April 1971 [2 Feb 1970] 21222/71 Heading F2G [Also in Division B5] A pipe coupling 14 comprises wound parallel glass filaments saturated with epoxy or phenolic resin, in the ratio 65 parts by weight of glass to 35 of resin. Alternative materials include an elastomer, portland or magnesium cement, sodium or hydrated calcium silicates, aluminium or other polyvalent metal phosphates, or asphaltum compounds. Included are fillers, continuous filaments, fibrous nets, or felted glass fibre bodies. Internal threads or sealing ring grooves are defined; the coupling may include bends, reducers, ells, tees or wyes. A method of moulding or winding the coupling is described (see Divisions B4-B5).
Patent GB-214572-A (GB)
Title: Improvements in and relating to crystallisation processes
IPC: B01D9/00
Filed: 1923-08-22
Abstract: 214,572. Appareils et Evaporateurs Kestner. April 17, 1923, [Convention date]. Separate heater and evaporator apparatus.-A hot saturated saline solution is evaporated to produce crystallization by reducing the pressure upon it, and the steam evolved is utilized for preheating the solution to be crystallized. The evaporation is effected in stages at gradually reduced pressures. Hot solution from a tank a is passed in series through evaporating-vessels z - - m evacuated through separate connections by an air pump s. The vessels are discharged through barometric tubes into reservoirs t - - x into which dip tubes through which liquid is fed to the succeeding vessel. The vapours pass through tubular preheaters n - - r through which the solution to be crystallized is passed in series.
Patent GB-1440287-A (GB)
Title: Methods of making network structures
IPC: B32B7/03
Filed: 1974-05-14
Abstract: 1440287 Polymer nets; laminates HERCULES Inc 14 May 1974 [5 July 1973] 21383/74 Headings B5B and B5N A polymer network structure is made by forming on one side of a crystallizable polymer film a plurality of ribs extending at a diagonal angle to the longitudinal axis of the sheet with webs of reduced thickness connecting adjacent ribs; crystallizing the film to at least 30% crystalline content, drawing the film initially at an angle of 40-70 degrees to the longitudinal axis of the ribs so as to split said webs into fibrils so as to form a net of continuous ribs interconnected by fibrils. The film may be subjected to a second drawing in a direction perpendicular to the first. Two portions of the net may be laminated together by bonding with a polyethylene net in a press at 150 C.
Patent GB-1170575-A (GB)
Title: Re-Sealable Container
Inventor: SATZ WILLIAM
IPC: B65D43/02
Filed: 1968-05-06
Abstract: 1,170,575. Container closures. W. SATZ. 6 May, 1968, No. 21428/68. Heading B8T. A closure seal for a container comprises a rim on the container with an annular, radially outwardly convex camming portion 16 and a flat sealing surface 18, and a closure lid having a flat sealing portion 21 and an annular, radially inwardly convex camming portion 30 which engages with the corresponding portion on the rim. A sealing liner 36 of resilient material is provided to form a tight seal and the lid can be removed by finger pressure or by an opener (42), Fig. 1 (not shown).