baber/WOPTO huggingface dataset:
Patent GB-1068586-A (GB)
Title: Flexible phenolic baking resins
IPC: C08G8/28
Filed: 1963-12-02
Abstract: A curable phenolic resin composition comprises the reaction product of (a) a polyhydric compound of the formula <FORM:1068586/C3/1> where n is 1 or 2; (b) 10 to 40% by weight of (a) of phenol; and (c) at least one mole of formaldehyde per mole of phenolic OH in (a) and (b) in solution in a solvent volatile at the curing temperature. Reactant (a) may be obtained by reacting 2 moles of bisphenol A with one mole of epichlorohydrin or the diglycidyl ether of bisphenol A using an alkaline catalyst.  Specified solvents for (c) are glycol ethers and ether-esters, MIK, diacetone alcohol and C1- 6 alkyl alcohols.  Specified catalysts for the reaction include alkali and alkaline earth metal hydroxides, ammonium and tetraalkylammonium hydroxides, tertiary amines, hexamine and sodium amide.  Acids may be added to the reaction product to accelerate curing e.g. phosphoric, sulphuric, hydrochloric, oxalic, citric or acetic.  In the example (a) is obtained by reacting an epoxy material of epoxide equivalent 185 to 200 and M.W. 350 to 400, consisting predominantly of bisphenol A diglycidyl ether, with bisphenol A using lithium naphthenate as catalyst.  The composition is used to coat steel panels by dipping and baking and may be employed as an internal coating for metal containers.ALSO:A curable phenolic resin coating composition comprises the reaction product of (a) a polyhydric compound of formula <FORM:1068586/B1-B2/1> where n is 1 or 2 (b) 10 to 40% by wt. of (a) of phenol, and (c) at least one mole of formaldehyde per mole of phenolic OH in (a) + (b) in solution in a solvent volatile at the curing temperature. Reactant (a) may be obtained by reacting 2 moles bisphenol A with 1 mole of its diglycidyl ether or epichlorohydrin. The composition may be used as an internal coating for metal containers and in the Example is applied to steel panels by dipping and baking at 400 DEG F.  An alkaline catalyst may be used for the reaction and an acid catalyst for curing.
Patent GB-1146209-A (GB)
Title: Improvements in or relating to electromagnetic counters
IPC: G06M1/10
Filed: 1966-12-06
Abstract: 1,146,209. Counters; selective signalling. VEEDER INDUSTRIES Inc. 6 Dec., 1966, No. 47659/68. Divided out of 1,146,208. Headings G4D and G4H. An electromagnetically-driven counter has electrical read-out brushes 34, 35, 38, 40 associated with each digit wheel 24 and a pair of brushes 44, 46 associated with a wheel 22 rotating at twice the speed of the digit wheel. The brushes co-operate with contacts on a printed circuit board to provide binary-coded decimal readout, transfer and reset to zero. Depression of a resetting button 70 actuates a switch (not shown) to advance the counter to zero position. Each denomination forms a module enclosed in a casing 10.
Patent GB-1466381-A (GB)
Title: Textile printing apparatus
IPC: D06B11/00
Filed: 1973-10-12
Abstract: 1466381 Printing apparatus IMPERIAL CHEMICAL INDUSTRIES Ltd 2 Sept 1974 [12 Oct 1973] 47678/73 Addition to 1363852 Heading B6C The transfer printing apparatus of 1,363,852 is modified by the provision of a continuous length of transfer material supplied from reel 10 and taken up by reel 12. Reel 10 may be braked and reel 11 clamped to stop the transfer in the required registered position, and a cursor line may be providedon the upper platen 2 either between roller 9 and recess 3 in the lower platen 1 containing the article to be printed, or be tween recess 3 and roller 11 so that this line can be used to position the transfer. The transfer web preferably has the required image printed thereon, with gaps slightly larger than the distance of O-ring seal 6 from recess 3, which are-not printed. Bringing the platens together, applying a vacuum less than 100 mm. Hg and a temperature of above 100‹ C. effects sublimation printing.
Patent GB-1167523-A (GB)
Title: Method and apparatus for Maintaining Sinter Feed Mixtures
Inventor: WHITE GORDON
IPC: E21D23/26
Filed: 1966-10-26
Abstract: 1,167,523. Compression moulding. BRITISH IRON & STEEL RESEARCH ASSOCIATION. 26 Oct., 1967 [26 Oct., 1966], No. 47989/66. Heading B5A. [Also in Divisions B8 and G1] A powder, e.g. of iron ore, is analysed by forming a pellet of the powder in a die at a first position of the die, moving the die to a second position where the pellet is analysed and disposing of the pellet as the die is returned to its first position. The analyser frame 40 carries on a spigot 41 a rotatable turret 42. The turret carries three die-rings 67 which are equi-spaced about the axis of the turret and in the first position of the turret are below corresponding sample feed devices 50. The tube 55 is lowered by hydraulic pressure applied at 58 into contact with the die-ring 67 and a measured quantity of sample from a sample meter (see Division B8) passes down the tubes 59 and 55 to the die-ring 67. A pressure-plate 68 is moved hydraulically to engage the die-ring 67 and the piston 66 is moved hydraulically upwards to compact the sample into a pellet. The turret then indexes round to a position where the pellet is underneath an X-ray fluorescence analyser 71 which is then lowered into contact with the pellet. The analyser comprises a radio-active source of primary X-rays and a gas-filled counter tube connected to a pulse light analyser. The three X-ray analysers may test for iron, calcium and silicon in sinter mix. The silicon analyser is flushed with hydrogen or helium to minimize absorption of fluorescent radiation. After analysis the turret returns to its first position, and during this movement the piston 66 moves upward to push the pellet clear of the die-ring 67 whence it is removed by a scraper blade mounted between the first and second turret positions and returned to the sinter feed conveyer or otherwise disposed of. The electrical and hydraulic control circuit of the machine are described. Calibration.-The analysers may be calibrated periodically or at will by rotating the counter tube 80 step-by-step by means of an electric motor 83 so that the analyser "analyses" in turn three known samples 85, 86, 87 to provide three fixed points on the analyser calibration curve. Reference has been directed by the Comptroller to Specification 1,106,074.
Patent GB-1414170-A (GB)
Title: Lubricating oil hydrotreating process
IPC: C10G49/26
Filed: 1972-10-20
Abstract: 1414170 Hydrotreating lubricating oils GULF RESEARCH & DEVELOPMENT CO 20 Oct 1972 [20 Oct 1971 (2)] 48440/72 Heading C5E Lubricating oils are produced by fractionating a crude lubricating oil of which 10-90% by volume boils below 510‹ C. into a residual and a distillate fraction, hydrotreating the residual fraction at 343-454‹ C. and hydrotreating the distillate fraction at 371-482‹ C. under more severe conditions than those employed for hydrotreating the residual fraction; the conditions employed for hydrotreating both fractions comprise a pressure of 140-700 kg./cm.<SP>2</SP>, a CHSV of 0À1-10, a hydrogen feed rate of 35À6- 178 SCM per 100 litres of charge oil and are such that yields of at least 50% by volume, based upon the respective charge oils, of hydrotreated materials boiling above 329‹ C. are obtained. A suitable catalyst comprises nickel and tungsten on silicaalumina and is promoted with fluorine. Fig. 1 illustrates an embodiment in which an oil 10 is separated into a distillate 14 which is hydrotreated at 34 and a residue 16 which is deasphalted at 18 with propane and then hydrotreated at 28; the hydrotreated effluents are fractionated either separately or in combination. Fig. 3, not shown, illustrates an embodiment in which the distillate is hydrotreated in a first zone and then hydrotreated in a second zone in combination with the deasphalted fraction. Fig. 4, not shown, illustrates an embodiment similar to Fig. 1 but.in which the oil is separated into two distillate fractions and one residual fraction and these fractions are separately hydrotreated. Fig. 5, not shown, illustrates an embodiment in which an oil is separated into three distillate fractions and one residual fraction and these fractions are separately hydrotreated in a single reactor employing a blocked operation.
Patent GB-1077668-A (GB)
Title: Method and apparatus for rendering liquid fuel in a fuel tank non-flowable
Inventor: BUGG FRANCIS VERNON
IPC: B64D37/32
Filed: 1963-12-09
Abstract: To prevent or minimise fires due to the combustion of liquid fuel, vehicles e.g. aeroplanes are provided with means for introducing into their fuel tanks a material which forms a foam which entraps the fuel and forms a substantially non-flowable solid containing both the liquid fuel and the inflammable "atmosphere" of the tank.  In the embodiment shown in Fig. 1, an inert gas (CO2, CH3Br or CCl2F2) under pressure in tank 20 is used to force the foam-forming liquids from tanks 21 and 22 to a valve manifold 23, from whence they pass to one or both aircraft fuel tanks 16 and 17 (as required), where they are distributed throughout the interiors of the tanks by diffusor tubes 18 and 19, the two foam-forming components being mixed just prior to their injection into the tanks.  Provision is also made for the foam components to be fed to the fuel system in the engine nacelles 14 and 15 via conduits 30-33, the solenoid-operated valves attached to the manifold 23 enabling the pilot to select the destination(s) of the foam.  Suitable foam-forming materials are liquid polyether or polyurethane resins which are mixed and reacted with a polyisocyanate in the presence of a catalyst to form a solid polyurethane resin which is "blown" into a foam either by the propellant gas alone or by the propellant gas and steam formed from water present in the foam-forming liquids by the heat of reaction.  Other substances, e.g. ethylene glycol and a wetting agent, may also be present to adjust viscosities and to assist in the production of a suitable "foam".
Patent GB-1468815-A (GB)
Title: Pharmaceutical compositions
IPC: A61K9/14
Filed: 1973-10-18
Abstract: 1468815 Pharmaceutical compositions VYMATT SA 15 Jan 1975 [18 Oct 1973] 48650/73 Heading A5B A pharmaceutical composition comprises a continuous hydrophobic phase in which there is dispersed an inert water-insoluble powder the particles of which carry an adsorbed hydrophilic solution or dispersion of a medicament. As medicament, mention is made of urea, antibiotics, enzymes, cortico steroids and many others. The compositions are for topical use.
Patent GB-1281034-A (GB)
Title: Improvements in switches
IPC: H01H39/00
Filed: 1969-10-03
Abstract: 1281034 Electric couplings KERNFORSCHUNGSANLAGE JULICH GmbH 3 Oct 1969 [23 Oct 1968] 48732/69 Heading H2E A rapidly closing switch for high voltage, high current applications as in plasma physics installations has its switching electrode 1 and base electrode 2 initially in series with bus-bars 3, 4 connecting a capacitor bank 5 to an inductive load 6 but is used to short-circuit the bank and load when its electrodes 1, 2 become connected together by means of a U-shaped aluminium plate 9. The plate 9 is detachably connected to the base electrode 2 but is initially insulated from the switching electrode 1 by a foil 14 of polyethylene or polyester. Within the arms of the plate 9 are a steel reinforcing plate 13 and two extended aluminium foils 11 which are separated by a narrow central gap and insulated by polyethylene foils 10. When each metal foil 11 is exploded by connection to a high voltage pulse source 12, the aluminium plate 9 is deformed and the insulating foil 14 ruptured, this being aided by sharp edges 7, 8 of the switching electrode 1. The edges 7, 8 are positioned within a tapered slot 17 in which the plate 9 becomes gripped. The electrodes 1, 2 are preferably of copper-beryllium alloy, the electrode 2 being relieved below the steel plate 13. The metal foils 11 are preferably reduced in cross-section by tapering toward the central region where they are connected to the plate 9. The switch parts are pressed together by an hydraulic press 19. The dielectric strength of the switch may be increased by metal or semi-conducting layers between or around the electrodes or by placing the electrodes in a vessel containing insulating oil, a weakly conducting electrolyte, or a gas such as SF 6  at a pressure up to 16 atmospheres gauge.
Patent GB-1312834-A (GB)
Title: Continuous strands of fibres
IPC: D01G23/06
Filed: 1970-10-14
Abstract: 1312834 Automatic control of textile fibres; fluid pressure servomotor systems MASCHINENFABRIK RIETER AG 14 Oct 1970 [15 Oct 1969 14 Sept 1970] 48769/70 Headings G3P and G3R [Also in Division D1] In an apparatus for feeding flocks from a feeder by means of a pneumatic duct 11, Fig. 6, and vertical chute 10 to a textile machine such as a carding engine 21 the flock is condensed in the chute 10 by applying a pressure P 1  at the top thereof. The density of the fibrous mass emanating from the chute is sensed by a spring loaded roller e.g. 14 or 32 and, via a measuring device 26 and control device 27, controls the speed of a motor 28 operating the fan supplying the pneumatic pressure P 1  hence evening out density fluctuations. The control device 27 may be set to have a proportional, integral or PID characteristic. The duct 11 may feed a plurality of fibre textile machine and form a closed loop returning to the feeder. The sensing device may be situated downstream of the carding machines e.g. after the produced slivers have been doubled together and e.g. combined with a drawframe (25) Fig.9, (not shown). In another embodiment, Fig.13, flock is fed to a perforated chute 58 adjacent an exhaust duct 60 where the height h of flock is controlled by a photo-cell arrangement 77 which through a relay 78 switches the take in roll 53. The pressure in the chute is controlled by a weighted lever 66 holding a roller 62 which responds to the fibre density to operate a pneumatic signal transmitter 69, 70, 71. The transmitter acts on a control mechanism 72 which also receives a set value signal from a transmitter 73. The deviation signal so produced is fed to an amplifier 74 whose pneumatic output controls the speed of fan motor 76 via piston 75. Limit switches 81 and 82 are provided to either stop material transport or activate acoustic or optical alarms. In a fully pneumatic system, Fig. 11, (not shown). The fibre density is sensed by feeding a sliver (22) through a funnel (39) to produce a signal pressure in a duct (40) communicated, possibly via a damping element (42) to a control device (41) to control a throttling valve (44) which operates a piston (46), via a damping element (45) to activate a throttle valve (47) in the duct 11. The piston (46) may alternatively control the brushes of a commutator motor (49) of the fan, Fig.12, (not shown). When a plurality of ducts are involved each may have a sensor feeding a common control device (29) Fig.7, (not shown) which feeds an arithmetic mean signal to a correcting member (30). The sensing means of the invention may either give a continuous response or operate between upper and lower limits.
Patent GB-1061459-A (GB)
Title: Improvements in or relating to continuous casting of metals
IPC: C09D139/06
Filed: 1965-11-18
Abstract: A coating composition for providing a protective-insulative coating on a metal casting belt for use in a machine for the continuous casting of metal comprises a dispersion of finely divided carbon and finely divided insulative refractory material in an aqueous or alcoholic medium containing an organic resin binder.  The organic resin binder is preferably polyvinyl pyrrolidine (exemplified) or polyvinyl alcohol, polyacrylic acid or polyvinyl methyl ether.  The finely divided insulative refractory material is preferably pumice, asbestos, talc or diatomaceous silica.ALSO:A coating composition for providing a protective-insulative coating on a metal casting belt for use in a machine for the continuous casting of metal comprises a dispersion of finely divided carbon and finely divided insulative refractory material in an aqueous or alcoholic medium containing an organic resin binder.  The composition is applied to the metal belt by spraying to form a coating having a thickness in the range of 0.0005 to 0.0035 inches.  The organic resin may be polyvinyl pyrrolidine, polyvinyl alcohol, polyacrylic acid or polyvinyl methyl ether. The finely divided carbon may be acetylene block or graphite. The finely divided insulative refractory material may be pumice, asbestos, talc or diatomaceous silica.
Patent GB-1480367-A (GB)
Title: Communication system for disseminating coded digital data in analogue form
IPC: H04L23/02
Filed: 1974-11-14
Abstract: 1480367 Bit encoding/decoding THOMSON-CSF 14 Nov 1974 [16 Nov 1973] 49368/74 Heading G4C [Also in Division H4] A data handling system receives serial binary data, arranges the data in N-bit groups, orthogonally transforms (e.g. using Walsh-Hadamard or Fourier transforms) each group into an N- component analogue signal, and records or transmits the analogue signal, the reverse transformation being performed on read out or receipt of the data to reconstitute the binary data. Binary data are formed at 2 into N-bit parallel groups and are passed to a unit 3 which may be an analogue or digital computer, a digital/analogue converter being provided as necessary, and which performs the orthogonal transformation to produce an N-component analogue signal 6 which is recorded, e.g. on a magnetic tape 11, or transmitted. When the reverse transformation is performed to reconstitute the data the transformation matrix is such as to distribute the effects of defects on the tape &c. amongst the signal components so that, in contrast to a digital system, a localized defect does not have the effect of destroying one of the original bits. In practise the analogue components of the transformed (digital) signal are constrained to lie between limits, the probability distribution of signal level between the limits being Gaussian. On read out any detected signal level with a probability below a fixed threshold is attributed to a defect and replaced by a 0 level in circuit 14. The reconstituted bits are taken as 0 or 1 by using a threshold in circuit 18 of ¢. The resulting signal is shaped at 19 to provide the output 21. Clock signals are recorded on the magnetic tape or transmitted in a separate channel to synchronize the system.
Patent GB-1137241-A (GB)
Title: Method of producing epoxides by oxidation of olefins
IPC: C07D303/04
Filed: 1965-12-02
Abstract: 1,137,241. Epoxidation. ATLANTIC RICHFIELD CO. 2 Dec., 1965 [8 April, 1965], No. 49843/66. Divided out of 1,136,923. Heading C2C. Epoxides are prepared by the liquid phase reaction at 50-200‹ C. of an olefinic compound and an organic hydroperoxide in the presence of a catalyst in which the active component is molybdenum and which is added to the reaction mixture solely as metallic Mo. Specified olefinic compounds include mono- and di-olefinic cyclic and acylic hydrocarbons, unsaturated acids, esters and alcohols. Suitable hydroperoxides are those of the formula ROOH, where R is an optionally substituted alkyl, alkenyl, aryl, aralkyl, alkaryl, cycloalkyl or cycloalkenyl group, e.g., t-butyl and cumene hydroperoxides. The reaction may be effected in the presence of a solvent. An example relates to the preparation of octene oxide.
Patent GB-1198100-A (GB)
Title: Signal Amplifying Arrangement
IPC: H03F1/42
Filed: 1967-11-03
Abstract: 1,198,100. Amplifiers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 3 Nov., 1967 [8 Nov., 1966], No. 50107/67. Heading H3T. In an amplifier comprising a "voltage follower" stage T 1  coupled by a cable to a common base transistor stage T 2 , the high frequency response is compensated by the inclusion of a resistor R i  and a capacitor C i . The "voltage follower" may be an emitter follower as shown, a field effect transistor connected as a source follower, or a valve connected as a cathode follower.
Patent GB-1533909-A (GB)
Title: Hydrostatic transmission control
IPC: B62D11/18
Filed: 1976-12-07
Abstract: 1533909 Hydrostatic transmission control; valves SUNDSTRAND CORP 7 Dec 1976 [30 Dec 1975] 50971/76 Headings F2V and F2W In a hydrostatic transmission system having a pair of identical transmissions, e.g. for driving tracks on opposite sides of a vehicle, the transmissions are associated with a common rotary valve 110 having relatively rotatable parts which, when the outputs of the transmissions are asynchronous, rotate relative to each other thereby to provide a modification of the drive ratio of one of the transmissions to restore the transmissions to drive their outputs synchronously. As shown, each transmission comprises a variable swash plate pump 10 and a variable swash plate motor 11 which are controlled by input-speed responsive pressure liquid through either conduit 80, 83 via a manually operated steering control valve 77 and a manually operated directional control valve 73 from a main control 70 when mismatch occurs between the output speeds of the driven shafts of the transmission motors, which shafts are connected to different rotatable parts of the valve 110, the parts rotate relatively to each other and thereby cause a reduction of the liquid pressure in the control line of the faster rotating motor or, in an alternative embodiment, cause an increase of the liquid pressure in the control line of the slower rotating motor to compensate for the mismatch. The rotary valve 110 may comprise an outer cylindrical member 111 having circumferential grooves 150, 151, 158 in its external surface and throughbores 152, 153, 156 associated with such grooves, and also an inner cylindrical member 112 having throughbores 160, 161 in the same radial planes as bores 152, 153 but offset to opposite sides of the axial plane containing the bores 152, 153. The control 70 for supplying liquid under pressure to the pump and motor controls may be as disclosed in Specification 1,487,883 which also includes details of the manually operated directional control 73, the manually operated steering control 77 and fluid controlled servomotors 35, 36 for adjusting the swash plates and including mechanical, spring biased feedback means 50 for restoring a valve spool 41 (or 42) of the servo-motors 35, 36 back to a "central" position once their associated swash plates have been adjusted.
Patent GB-1218159-A (GB)
Title: Lining machine
Inventor: PADGETT CLIFFORD ALBERT
IPC: B05C7/02
Filed: 1969-10-17
Abstract: 1,218,159. Lining pipes. RAYMOND INTERNATIONAL Inc. 17 Oct., 1969 [12 Dec., 1968], No. 51125/69. Heading B2L. Apparatus for coating the inside of pipes comprises a distributor head 18 which projects lining material on to the inside of the pipe, trowel means 24 which are rotated at a slower speed than the distributor head 18 and a plate 36 between the distributor head 18 and the travel means to intercept rebound particles 33 and prevent them from striking the trowelled lining. The plate 36 may be rotated with the trowels a gap being left between its periphery and the lining for inspection or it may be stationary and have a hinged segment for inspection purposes. The coating applicator has wheels 16 and may be self propelled or pulled through the pipe by a rope and winch.
Patent GB-1131065-A (GB)
Title: Improved valve structure for musical wind instruments
IPC: G10D9/04
Filed: 1965-12-06
Abstract: 1,131,065. Valves. P. S. PROLL. 6 Dec., 1965 [12 July, 1965], No. 51577/65. Heading F2V. [Also in Division G5] In a musical wind instrument, e.g. a toy trumpet, the valve member, which is operable to open and close a port in the instrument, and the return spring are formed as parts of the same homogeneous integral moulding of plastics material. The stem and finger pad portions may also form part of the same integral moulding. To prevent excessive compression of the spring a pin 15 may be provided to limit the axial movement of the plunger, or lugs integral with the spring may be formed on adjacent coils. Instead of being helical as shown the return spring may have two outwardly curved spring arms or have a flat serpentine or S-shape, Figs. 7, 8 (not shown). A number of valve member and spring units may be formed as a single moulding, Fig. 5 (not shown), and assembled as a unit into the instrument in one operation.