baber/WOPTO huggingface dataset:
Patent GB-1023210-A (GB)
Title: Process for the production of salts of primary and secondary aminoalkyl esters of polymerisable carboxylic acids
IPC: C08F20/34
Filed: 1964-11-05
Abstract: Polymers are prepared by radical polymerization of compounds R1CH=CR3.COOANHR4.HX, where R1 is hydrogen, C1- 6 alkyl or a -COOANHR4.HX radical, R3 is hydrogen, methyl or a -CH2COOANHR4.HX radical, R4 is hydrogen, normal alkyl, aralkyl, phenyl or substituted phenyl, A is a C2- 10 straight or branched alkylene group, and X is Cl or Br (see Division C2).  Examples polymerize b -aminoethyl methacrylate hydrochloride in bulk and in an aqueous medium which contains sodium formaldehyde sulphoxylate, p - menthanehydroperoxide, potassium ferrocyanide and bleaching earth.ALSO:The invention comprises the salts of formula R1CH=CR3.COOANHR4.HX, where R1 is hydrogen, C1-6 alkyl or a -COOANHR4.HX radical, R3 is hydrogen, methyl or a -CH2COOANHR4.HX radical, R4 is hydrogen, normal alkyl, aralkyl, phenyl or phenyl substituted with e.g. Cl, Br or C1-6 alkyl, A is a C2-10 straight or branched alkylene group, and X is Cl or Br; and their production by reacting anhydrous HOANHR4.HX with R5CH=CR6.-COX (where R5 is hydrogen, C1-6 alkyl or -COX and R6 is hydrogen, methyl or -CH2COX) at 70-120 DEG  C. in the presence of metallic copper or a copper salt; an anhydrous inert organic solvent may be used.  The copper stabilizes the product against polymerization.  The alkanolamine hydrohalides may be prepared by introducing dry hydrogen halide into the alkanolamine, and rendered anhydrous by treatment with SOCl2.  In a comparative test ClCH2CH2NH2.HCl is obtained from HOCH2CH2NH2.HCl, H2O and SOCl2 in the presence of copper powder.
Patent GB-1032167-A (GB)
Title: Improvements relating to variable frequency pulse generators
IPC: G06F3/08
Filed: 1964-11-06
Abstract: 1,032,167. Character recognition; statistical apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 6, 1964 [Dec. 6, 1963], No. 45263/64. Headings G4M and G4R. A pulse generator for generating output pulses at a frequency dependent on the velocity of a document 10 (Fig. 1, not shown), to be read 20, comprises a pulse generator 40 whose pulses are counted 50 and compared 110 with a number in a counter 70 corresponding to the speed of the document 10 to give an output pulse to the reader logic 25 when the numbers coincide. The leading edge of the document 10 is detected by a photo-cell DD1 to initiate operation of a divider circuit 60 which passes pulses to counter 70 after a predetermined count in the counter 50 which is then recycled. The divider circuit 60 operates until the leading edge is detected by a second photocell DD2 whereupon the number in counter 70 is maintained and compared by a gating arrangement (Fig. 2, not shown), with the number in counter 50 to give output pulses to the reader logic 25 and simultaneously re-cycle the counter 50 to complete reading each character.
Patent GB-958773-A (GB)
Title: Improvements relating to multi-programme control mechanisms
IPC: D06F34/30
Filed: 1960-07-22
Abstract: 958,773. Washing machines. HOOVER Ltd. July 22,1960 [July 23,1959 (3)], No. 45456/63. Divided out of 956,148. Addition to 946,666. Heading D1A. The key member of the parent Specification is in the form of a plate or sheet having two or more sets of operating means on its face and is movable into two or more spaced apart operating positions to render effective the different sets of such means. On Figs. 1 and 3 the key is in the form of a disc 10 with a number of concentric cam tracks 5, 6 on its surface which are arranged to co-operate with suitably arranged followers to operate contacts to control the programme cycle. In Figs. 7 and 8 a slidable rectangular plate 19 has projections 16 and recesses 6 for co-operating with the follower pins 24 operating contacts 25. The plate may be moved by a rack and pinion device to select different programmes. In Figs. 12 and 13 the key is in the form of an endless belt 32 with projections 33, encircling either closely or loosely a roller 34 which is turned to select different programmes. The various key members are preferably provided with markings which are arranged to appear in a window or opposite an index pointer to indicate the programme selected. The cam surfaces may be replaced by printed circuits which actuate the contact 25 directly.
Patent GB-1244413-A (GB)
Title: Pumping apparatus for unloading liquid storage tanks
IPC: B63B27/24
Filed: 1969-09-17
Abstract: 1,244,413. Centrifugal pumps. MITSUBISHI JUKOGYO K.K. Sept.17, 1969 [Sept.25, 1968; July 8, 1969], No.45917/69. Heading F1C. Pumping apparatus for unloading liquid, e.g. from the storage tanks of an oil tanker, comprises a pump 10 which normally unloads the liquid from the tanks 1 via a line 20 and a suction line 6 having a bell-mouthed inlet 7 in each tank. However, when the liquid level in the tank being emptied falls to a low value, a valve 21 is closed and valves 15, 18, 19 are opened so that the pump 10 receives the liquid via a separating tank 9 which allows any entrained gas or air to escape via a vent 11 communicating with atmosphere or the interior of one of the storage tanks. The liquid is forced into the separating tank by an ejector-type pump 16 powered by liquid delivered through conduit 14. The liquid level in the separating tank is detected by means 17 which automatically controls the operation of a discharge valve 13 and may control the valve 15. Alternatively, the means 17 operates an alarm device to indicate to an operator when manual adjustment of the valve 13 is necessary. One of the storage tanks may be used as the separating tank.
Patent GB-1023586-A (GB)
Title: Improvements in or relating to electrical circuits
Inventor: MASON FREDERICK PERCIVAL
IPC: H04L25/20
Filed: 1961-12-22
Abstract: 1,023,586. Hall effect device switching circuits; telegraphy. CREED & CO. Ltd. Dec. 21, 1962 [Dec. 22, 1961], No. 46053/61. Headings H3T and H4P. A switching circuit comprises a Hall plate to the magnetizing coil of which D.C. input signals are applied at 1 and the output of which controls a bi-stable circuit. The current electrodes of the plate may be supplied with D.C or, as described, an A.C. having a frequency higher than that of the 7 unit code telegraph signals applied at the input 1. A D.C. mark signal produces an A.C. output from the plate and this is applied through an inverter 14 and an amplifier 15 to a demodulator 16 feeding a bi-stable circuit 17 which may be a Schmitt trigger circuit having very small hysteresis. The first (start) signal of the code is a space, so that the inverter 14 produces an A.C. output signal which is rectified at 16 and switched over bi-stable circuit 17. This starts a generator 20 which produces six output pulses, one at the middle of each of the remaining units of the code. The rectified signal, in addition is inverted at 19 and applied to a gate 2 together with the pulses from 20 so that each of the remaining signals is sampled by the gate. The pulses are also fed through a delay II to a distributer comprising a counter 22 and gates 2 so that the next 5 signal pulses set respective bi-stable circuits 24 of a temporary store. The final (stop) pulse resets the counter and opens gates 27 which transfer the information from the temporary store to the printer or tape device 26. Resetting the counter produces an output from the first stage which is differentiated at 27 to produce a pulse which resets the bi-stable circuit 17 and the temporary store 24. In an alternative basic circuit for double current-signals a synchronizing demodulator is used (Fig. 2, not shown).
Patent GB-1410666-A (GB)
Title: Switching a stabilised voltage supply
IPC: H02M1/08
Filed: 1972-10-06
Abstract: 1410666 Automatic voltage regulation; current mirrors PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 6 Oct 1972 [9 Oct 1971] 46208/72 Headings G3R and G3X A stabilized voltage supply can be switched between two stable states by the application of a switching voltage pulse to the output of the supply. As shown, a voltage regulator, receiving an unstabilized negative input at terminals 1, 2, comprises a Darlington pair T 1 , T 2 , a long-tailed pair T 4 , T 5 , and current mirrors T 7 , T 8  and T 7 , T 9 . The junction of a potential divider R 1 , R 2  across output terminals 3, 4 is connected to the base of a further transistor T 3 . It is shown that, with an input connected, the regulator has two stable states, in one of which the output voltage is zero, and in the other the output is a stabilized non-zero voltage. The circuit may be placed in a desired one of these two states by the momentary application of either the unstabilized input voltage or earth potential to the output of the circuit. Two such stabilized supply circuits may be contained in an integrated circuit for an AM-FM receiver. The states of the two circuits may be changed by ganged switches to energize either the AM circuitry or the FM circuitry as desired, Figs. 4-5 (not shown).
Patent GB-1478775-A (GB)
Title: Process for produciing carbon fibres
IPC: D01F9/22
Filed: 1975-11-07
Abstract: 1478775 Carbon fibres JAPAN EXLAN CO Ltd 7 Nov 1975 [7 Nov 1974] 46259/75 Heading C1A Carbon fibres are made by impregnating a water swollen polyacrylonitrile fibre containing at least 85 mol per cent acrylonitrile with 0À05- 5-0%, based on the dry weight of the fibre, of at least one compound represented by the formula R 1 NH 2  or R 2 R 3 R 4 R 5 N<SP>+</SP>.X<SP>-</SP> wherein R 1  is a C 7-16  hydrocarbon group; R 2 , R 3 , R 4  and R 5  are each a 1-16C hydrocarbon group, with at least one of these being a 7-16C hydrocarbon group and X is a monovalent anion; heat treating the fibre at a temperature of at least 150‹ C. for 0À1 seconds-30 minutes so as to produce a fibre having 20-80% weight undissolved matter upon being immersed in a 60% aqueous sodium thiocyanate solution at 80‹ C. for 20 minutes and then carbonizing and optionally graphitizing the fibre. The precursor fibres are preferably homopolymers of acrylonitrile or copolymers containing at least 90% acrylonitrile with one of a number of specified comonomers. The fibres are preferably wet spun to achieve a waterswollen state with water contents of 20-200%. The fibres may be stetched prior to treatment with the amine or ammonium salt. The additive is preferably applied to the water swollen fibre as an aqueous solution of 0À01-10% and the heated fibres preferably contain 0À1-3%. The fibres, preferably after drying, are heat treated at 160-550‹ C. for 0À2 seconds-20 minutes. The fibres are then carbonized, suitably by heating in an oxidizing atmosphere at 150-400‹ C. and then in a non-oxidizing atmosphere at above 800‹ C. Both stages are preferably performed while the fibre is under tension.
Patent GB-1281537-A (GB)
Title: Word pulse generating devices
IPC: H03K5/156
Filed: 1969-09-19
Abstract: 1281537 Pulse generator IWATSU ELECTRIC CO Ltd 19 Sept 1969 [20 Sept 1968] 46272/69 Heading H3T A pulse word generator has a signal generator G feeding a distributer A with n outputs, where n is larger than 2, the n outputs are connected via n parallel circuit paths D, P to a mixer M and each circuit path D, P includes a delay circuit D1-D4 and a pulse shaper D10, D20. The delay times of the parallel circuit paths differ by equal increments and means, such as R30, R40, is provided for selectively interrupting the parallel circuit paths to provide the desired binary pulse words. As the result of charge storage in snap off diodes D10, D20 a sine wave input voltage (Fig. 3a, not shown) from the associated delay circuit is shaped by diode D10 (to Fig. 3b, not shown), and by diode D20 (to Fig. 3c, not shown), which outputs are combined to produce an output clock pulse (Fig. 3d, not shown), whose width may be adjusted by variable resistors R30, R40. By suitably adjusting R30 and R40 the pulse produced by diodes D10 and D20 may cancel to produce a zero output or space in the output pulse train. By adjusting the respective pulse shapers P the required pulse code may be generated at the output of the diode mixer D30-D33. The pulse shapers P may be set to produce pulses of the same width and the delay times of the respective delay circuits D1-D4 then increase by equal increments. Alternatively the pulse shapers P may be arranged to generate respective output pulses at equal periods (Fig. 4a, not shown), while the delay circuits D1-D4 produce the same delay. The delay circuits D may be delay cables, the input may be pulses and the delay circuits may be connected after the pulse shapers P. In a modified pulse shaper (Fig. 5, not shown), D10, R30, L10 and L20 are removed and a short circuiting line (S1) is connected to the output of diode D20. The line (S1) acts to produce a pulse of narrower width (Fig. 3d, not shown), from the waveform (Fig. 3c, not shown), produced by the diode D20. A plurality (m) of circuits shown in Fig. 2 may be connected to a mixer to produce an output consisting of m x n bits. The pulse shaping circuit D10, D20 is described in Specification 1,244,394.
Patent GB-462746-A (GB)
Abstract: 462,746. Calendars. MENDL, A., and ZALAN, F. July 13, 1935, No. 20094. Convention date, July 18, 1934. [Class 106 (iv)] The date figures 1-14 are carried on one rotatable disc and the figures 15-31 on a second rotatable disc, both discs being turned by a single knob once every week to display the weekly calendar, the discs also automatically moving relatively to each other at certain times during the month so that some or all of the figures 29-31 on the second disc are obscured by the figures 1-3 on the first disc at the end of a short month, this relative movement being controlled by two cam discs carried by the second figure disc and operated by planetary gearing. Leap year is automatically provided for. The disc 3 bears the figures " 1 " .. " 14 " and the disc 15 the figures 15 " .. " 31." The discs are provided with teeth on those parts only of their edges adjacent the date figures. The calendar is advanced once every week by manually rotating a knob connected to a pinion 40 engaging the teeth on the discs 3, 15, and engaging also a toothed disc 16. The disc 16 engages a broad pinion 38 also gearing with the discs 3, 15. The discs 3, 15, 16 are all freely rotatable on the spindle 42, as is also an arm 8 attached to the disc 15 by a bolt 9. A pawl 17 is pivoted to the arm 8 and engages a pin 18 secured to the disc 3 and passing through a slot 18<1> in the disc 15. The pawl has three steps XXVIII, XXIX and XXX and is rocked by two cam discs 6, 7. When the pinions 38 and 40 both engage the disc 15 during a 28-day month, the pawl 17 will be in the position shown in Fig. 4, and the disc 15 through the arm 8, pawl 17 and pin 18, will drive the disc 3, no relative movement occurring. In a 29-day month, the pawl 17 will be positioned to allow the disc 15 to move one step before the pawl 17 engages the pin 18, the numeral " 29 " being thus uncovered. The step XXX engages the pin 18 in a 30-day month and the end of the slot in a 31-day month, thus allowing two and three steps respectively of relative movement. During another part of a month having other than 28 days, when both pinions 38, 40 engage the disc 3, they move it relatively to the disc 15 until the pin 18 is at the end of the slot 18<1>, as shown in Fig. 4. In non-leap years, the pawl 17 is positioned by cam 6, Fig. 1a, attached to a planet pinion 5, engaging a fixed sun pinion 12. The other cam 7 is connected to the boss 10 of a pinion 4 engaging another sun pinion 13. The cam 7 has one projection which positions the pawl 17 in February of leap year. An eccentric 31a is attached to the disc 15, and reciprocates and rocks a lever 30 having a pin 34 which engages a pinion 32 fixed to a monthsname disc 19. When the pin 34 is not engaging the pinion 32, a member 33 reciprocated by the lever 30 locks the pinion. A year disc 22 is actuated by a pin 28 on the month-name disc 19. The Specification as open to inspection under Sect. 91 states also that the calendar can be driven by clockwork. This statement does not appear in the Specification as accepted.
Patent GB-1505095-A (GB)
Title: Process for the manufacture of activated carbon
IPC: C01B31/08
Filed: 1976-11-11
Abstract: 1505095 Activated carbon CLAIRAIRE Ltd 11  Nov 1976 [11 Nov 1975] 46465/75 Heading C1A A batch process for the production of materials composed wholly or predominantly of activated carbon from cellulosic cloth, especially a viscose rayon cloth, comprises padding the cloth to be carbonized with a solution of Lewis acid which is a halide of zinc, aluminium, calcium, magnesium or iron, drying and overfeeding the cloth over a breaking machine to soften the cloth, applying the cloth on to a drying frame in a tensionless condition, placing the frame in a furnace maintained at a pressure above atmosphere by an inert gas, passing the inert gas through the cloth depending from the frame and gradually heating the furnace to 300‹ C. over a period of 2 to 3 hours to drive off volatiles from the cloth, heating the cloth to substantially 900‹ to 950‹ C. over a period of substantially two hours, maintaining the temperature for a period of approximately one half hour, cooling the furnace to substantially 100‹ C. whilst maintaining an inert atmosphere therein and finally removing the lid or cover and the frame from the furnace. The process may be effected in a heat insulated furnace in which the cloth is suspended from hooks 1 on a frame or frames 2 attached to the underside of the lid 3 of the furnace. The furnace is heated by electric heat 4 and its sides and bottom are lagged with insulating material 6. Holes 9 in the lid provide for the escape of fumes. Carbon dioxide or other inert gas is supplied to the furnace by pipe 9, displacing air via holes 7. The supply of gas is then continued at slightly above atmospheric pressure during the heating cycle. The furnace is then allowed to cool to 100‹ C. while maintaining the inert atmosphere, and the lid 3 is then removed with the cloth. Cooling of the furnace is accelerated by circulating cooling air or liquid through pipes 12 in the furnace wall insulation, the exhaust gases from the furnace during cooling being fed to the inert gas inlet of a second furnace to preheat the material therein.
Patent GB-1015923-A (GB)
Title: 5-hydroxy-6-methyl-2-pyridone-3,4-dicarboxylic acid
IPC: C07D213/67
Filed: 1961-12-29
Abstract: The invention comprises 5-hydroxy-6-methyl-2-pyridone-3,4 -dicarboxylic acid which is prepared by oxidizing 6-methyl-2-pyridone-3,4-dicarboxylic acid, or the monohydrate or alkali or alkaline earth metal salt thereof, in an alkaline aqueous medium with sodium, potassium, or ammonium persulphate or mixtures thereof and hydrolysing the product.  The alkaline medium may contain from 1 to 10% by weight of alkali metal or alkaline earth metal hydroxide carbonate or bicarbonate and a catalyst, e.g. ferrous sulphate, chloride, oxalate or manganese sulphate may be used.  The preparation of 6-methyl-2-pyridine-3,4-dicarboxylic acid by the hydrolysis of a C1-C4 alkyl ester or an aryl ester of 3-cyano-6-methyl-2-pyridone-4-carboxylic acid is also described and exemplified. The hydrolysis is effected with an aqueous solution (1-10% by weight), of hydrochloric, sulphuric, nitric, phosphoric, acetic, oxalic, formic or tartaric acids, or an aqueous solution (5-15% by weight) of an alkali metal or alkaline earth metal hydroxide, carbonate or bicarbonate. The 5-hydroxy-6-methyl-2-pyridine-3,4-dicarboxylic acid or monohydrate may be treated with phosphorus oxy-chloride and/or pentachloride followed by an aqueous alkaline solution to form 2-chloro-5-hydroxy-6-methylpyridine - 3,4 - dicarboxylic acid or the monohydrate thereof.  The chloro-compound may be reduced with hydrogen in the presence of a hydrogenation catalyst, e.g. Raney nickel or platinum to give 5-hydroxy-6-methylpyridine-3,4-dicarboxylic acid which is further reduced by a sodium borohydride-aluminium chloride system to 3 - 4 - dihydroxyethyl - 5 - hydroxy - 6-methyl pyridine (Vitamin B6).
Patent GB-1329775-A (GB)
Title: 1-phenyl-2-cyano-2-methylvinyl-thionophosphoric phosphonic acid esters processes for their preparation and their use as insecticides and acaricides
IPC: A01N57/06
Filed: 1971-10-07
Abstract: 1329775 Substituted vinyl esters of thiophosphorus acids BAYER AG 7 Oct 1971 [9 Oct 1970] 46755/71 Headings C2C and C2P Novel compounds of the general formula in which R is C 1 -C 6  alkyl, R 1  is C 1 -C 6  alkyl or C 1 -C 6  alkoxy or phenyl, and R 2  is phenyl which may be substituted one or more times by halogen, NO 2 , C 1 -C 6  alkyl, C 1 -C 6  alkoxy and/or C 1 -C 6  alkylmercapto, are obtained by either (a) reacting a compound NC.(CH 3 )CH.C(O)R 2  in the form of its alkali metal, alkaline earth metal, or ammonium salt or in the presence of an acid binding agent with an ester halide: Hal.P(S)(OR)(R 1 ) wherein Hal is halogen, e.g. Cl, or (b) by reacting a benzoic acid ester: R 3 O.(O)C.R 2  with propionitrile, R 3  being a C 1 -C 6  alkyl radical, in the presence of a base and then reacting the resulting product, preferably without isolation, with an ester halide: Hal.P(S)(OR)(R 1 ). The reactions may be carried out in the presence or absence of a solvent which may be water or an inert organic solvent. The products have insecticidal and acaricidal properties and are also effective against animal ectoparasites. They may be used as active ingredients in conventional pesticidal formulations. The compounds NC(CH 3 )CH.C(O)R 2  where R 2  is as defined above may be obtained by reacting an appropriate benzoic acid alkyl ester with an alcoholate and propionitrile in the presence of an alcoholate and a detailed example is given for preparing the compound in which R 2  is p-chlorophenyl by reacting 4-chlorobenzoic acid ethyl ester and sodium methylate at 50 C., then adding propionitrile and increasing the temperature to 120-140 C. Compounds of the last given general formula in which R 2  is phenyl, 4-methyl phenyl, 4-methoxy-phenyl and 2-bromo-phenyl are obtained by a similar process.
Patent GB-1243807-A (GB)
Title: Improvements in or relating to sliding windows, sliding doors, and like structural units
Inventor: PUDENZ ERNST
IPC: E06B3/46
Filed: 1968-10-02
Abstract: 1,243,807. Sliding doors and windows. E. PUDENZ. 2 Oct., 1968 [16 Oct., 1967; 23 Dec., 1967], No. 46790/68. Heading E1J. In a sliding window &c structural unit, the wings 2 which slide on plastics guide rails 20, or guide rails 5 within the head and sill 10, 11, are made from profiled frame members of H- section 35 and are slidably mounted in their outwardly looking sections, and draught sealing strip carriers 39 which mount longitudinal sealing strips 43, 44, 68, 69 along their outer edges, are movable vertically under pressure of springs 45, 46 in the frame members 35 under the control of adjustment rollers 48, 49 which also run on the guide rails 5 and in the closed position of the wing, the rollers dip into suitably disposed recesses in the rails 5, operative only to the adjustment rollers, whereupon the strip carriers are automatically pressed down and bring the sealing strips 43, 44 into contact with the guide rail 5, or are pressed up to bring the sealing strips into contact with the upper guide 20. The guide 20 is resilient and is adjustable by spaced spacer bolts 21 in the head 11 of the frame. The rail 5 is mounted over a pair of ribs 16, 17 and drain holes are provided in the ribs on the sloping surface 10 of the sill. The jambs of the frame and the head and sill members are cut at right angles and the flanges of the U-section jambs engage the ends of the head and sill and are adapted to mount jointer crack sealing strips 84, Fig. 6 for weather sealing between the frame and the surrounding wall, the Fig. 7 being a transverse section of a jamb. A draught sealing strip may also be secured in groove 110.