baber/WOPTO huggingface dataset:
Patent GB-1177160-A (GB)
Title: Process for Synthesizing Organic Compounds from Monomeric Imines
IPC: C07D207/323
Filed: 1967-10-24
Abstract: 1,177,160. Organic compounds synthesized from monomeric imines. R. J. REYNOLDS TOBACCO CO. 24 Oct., 1967 [17 Nov., 1966], No. 48385/67. Heading C2C. Various organic compounds are prepared by reacting imines of the formula (I) wherein R is hydrogen, alkyl, cycloalkyl, alkenyl aryl, alkanyl, aralkyl or heteroalkyl and when R is hydrogen, R<SP>1</SP> is alkyl, cycloalkyl, alkaryl or aralkyl, R<SP>2</SP> is hydrogen, alkyl, cycloalkyl, aryl, alkaryl, aralkyl or heteroalkyl and R<SP>3</SP> is alkyl, cycloalkyl or aralkyl or when R is other than hydrogen, R<SP>1</SP> is alkyl, cycloalkyl, alkenyl, aryl, alkaryl, aralkyl or heteroalkyl, R<SP>2</SP> is hydrogen, alkyl, cycloalkyl, aryl or heteroaryl and R<SP>3</SP> is alkyl, cycloalkyl or aralkyl, provided further that each of the above radicals can be with or without additional substituents, with manganese dioxide or nickel peroxide and recovering the reaction product. Illustrative examples prepare N,N<SP>1</SP>-diisobutyl-2,2,3,3-tetramethylsuccinaldimine and 1-isobutyl-3,4-di(npropyl)-pyrrole and analogous compounds.
Patent GB-986173-A (GB)
Title: Tape handling apparatus with non-linear buffer loop boxes
IPC: G11B15/58
Filed: 1962-12-27
Abstract: 986,173. Vacuum buffer box. SPERRY RAND CORPORATION. Dec. 27, 1962 [Jan. 8, 1962], No. 48617/62. Heading G5R. Where rapid acceleration of a magnetic tape by a capstan is provided for by a vacuum buffer box 19 arranged in succession to a vacuum storage box 18, providing for less rapid acceleration in succession to a spool (not shown) the buffer box is such that the radius of the tape loop 52 bears a non-linear relationship to the loop length to prevent oscillations of the tape between the two boxes. Both boxes 18, 19 are connected to the same vacuum source via portholes 24. In box 18, the radius at the end of tape loop 53 normally remains constant whereby the tape is under constant tension. In box 19, idler roller 30 provides that the tape loop radius and hence its tension varies non- linearly with its length tending to maintain the loop at the normal length 52 of radius equal to the loop 53. Where box 19 is operating in take-up mode, a temporary excess of tape may be accommodated between the parallel walls at a constant tension, less than that of loop 53, until action in the box 18 and by the reel, restored the position. An alternative buffer box, Fig. 3, has the non-linearity between radius and loop length established by the shaping of inlet and outlet loop-formers 60, 63 which may take the form of rollers such as 30, Fig. 2. Excess storage is obviated by the loop uncovering portholes 65, 66. A complete tape-feeding system (Fig. 1, not shown) has two sets of boxes 18 and 19 and a versible capstan.
Patent GB-1441870-A (GB)
Title: Method of producing a coaxial highfrequency cable
IPC: H01B13/22
Filed: 1974-11-11
Abstract: 1441870 Drawing; making cables KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 11 Nov 1974 [15 Nov 1973] 48690/74 Headings B3P and B3A In a method of producing a coaxial H.F. cable by applying a dielectric 3 on to an inner conductor 2, bending an outer conductor strip 5 around the dielectric at a predetermined interval therefrom, longitudinally welding the strip 5 and thereafter drawing it down to the outer diameter of the dielectric, the drawing lubricant used comprises a thermoplastics, synthetic resin material. An aluminium strip 5 is welded by a device 6 to enclose an inner copper conductor 2 provided in a device 12 with dielectric spacing discs 3 or synthetic resin foam insulation. Before being drawn through a die 9, lubricant comprising polyethylene powder or a copolymer of ethylene is applied on to the welded strip 7 by a vibratory device 8. The resin powder is softened or melted by the heat generated by the welding or drawing operation. The drawn cable is corrugated in a device 10 and provided with a sheath of synthetic resin material in an extrusion press 13.
Patent GB-1201474-A (GB)
Title: SUBSTITUTED s-TRIAZINES, THEIR DERIVATIVES AND COMPOSITIONS CONTAINING THEM
IPC: D06M13/358
Filed: 1967-10-26
Abstract: 1,201,474. S-Triazines. J. R. GEIGY A.G. 26 Oct., 1967 [27 Oct., 1966], No. 48706/67. Heading C2C. [Also in Divisions C5 and D1] Novel compounds of the general formula wherein R 1 , R 2 , R 3  and R 4  are each an amino group substituted by one or two open chained, cyclic or heterocyclically substituted open chained aliphatic radicals, or an unsubstituted or substituted saturated membered N-heterocycle bound by way of a ring N-atom which heterocycle can contain further hetero atoms or a derivative thereof containing salt-forming groups, wherein at least one of R 1 , R 2 , R 3  and R 4  is an amino-group substituted by an open chain aliphatic radical with 10-22 C atoms, are prepared by reacting tetrameric cyanogen chloride, C 4 N 4 Cl 4  with an amine R-H, where R is R 1 , R 2 , R 3  or R 4 , the reaction being performed stepwise in an inert solvent. Amongst the examples 2 - (1<SP>1</SP>,3<SP>1</SP> - di - n - octadecylguanidino) - 4 - n - octadecylamino - 6 - (3<SP>11</SP>- morpholinopropylamino)- 8 - triazine and 2- (1<SP>1</SP>,3<SP>1</SP> - di - n - octadecyl - guanidino) - 4 - n - octadecylamino - 6 - (4<SP>11</SP> - methylpiperazino)-8- triazine are prepared. 2 - (1<SP>1</SP>,3<SP>1</SP> - Di - n octadecyl - guanidino) - 4 - n - octadecylamino - 6 - chloro - s - triazine is obtained by reacting 4,6-dichloro-2-dichloro-isocyano-1,3,5-triazine with n-octadecylamine.
Patent GB-1366104-A (GB)
Title: Submicron metal oxide particles and their process for manufacture
IPC: C01G9/02
Filed: 1971-11-18
Abstract: 1366104 Submicron metal oxides AMERICAN CYANAMID CO 18 Nov 1971 [20 Nov 1970] 48826/71 Heading C1A [Also in Division C3] White ZnO having a particle size of 100 to less than 500 Š and oxides of Sb, Mo and W of particle size 100-1300 Š are prepared by vaporizing a feed of the metal or metal oxide into a gas stream and mixing a second gas (comprising O2 when the feed is a metal) into the stream to give a metal oxide concentration of not more than 0À01 gm./litre to rapidly cool the finely divided metal oxide formed. The oxide product may have a surface area of 27-40 m.<2>/gm. The gas stream may either be a plasma of, e.g. Ar, N2, air or O2, or an oxygen-acetylene combustion flame at a temperature of 2000-20,000‹ C. The feed metal may have a particle size of 1-100 Á and be vaporized from an electrode in a high density arc. The second gas may be air, O2 or N2 introduced under pressure at right angles to the gas stream. The product may be collected by filtration.
Patent GB-1093938-A (GB)
Title: Process for the preparation of cyanine and merocyanine dyes
Inventor: COLLET PIERRE DANIEL
IPC: C09B23/10
Filed: 1964-12-02
Abstract: The invention relates to a process for preparing a meso-substituted dye of the formula <FORM:1093938/C4-C5/1> <FORM:1093938/C4-C5/2> wherein R is H, an alkyl or substituted alkyl group of 1-5C, an aryl group or an aralkyl group, R1 is an alkyl or substituted alkyl group of 1-5C or an aryl or aralkyl group, R2 is an alkyl, aryl or aralkyl group, G is a N, S, O or Se atom, n is 1 when G is N and zero when G is S, O or Se, D represents the non-metallic atoms necessary to complete together with the two carbon atoms to which it is attached an aromatic nucleus, W represents the non-metallic atoms necessary to complete a 5-membered heterocyclic nucleus, e.g. a rhodanine, quinoline, or thiohydantoin nucleus, X2 is an acid radical, R3 is as for R except H, Y represents the non-metallic atoms necessary to complete a heterocyclic nucleus containing 5 or 6 atoms in the heterocyclic ring and q is 0 or 1 by condensing a quaternary salt of formula <FORM:1093938/C4-C5/3> wherein X is halogen with a quaternary salt of the formula <FORM:1093938/C4-C5/4> wherein X1 is an acid radical or a compound of the formula <FORM:1093938/C4-C5/5> respectively.
Patent GB-1515860-A (GB)
Title: Spectrophotometers
IPC: G02B26/02
Filed: 1975-11-28
Abstract: 1515860 Varying slit width of spectrometer PERKIN-ELMER Ltd 23 Feb 1977 [28 Nov 1975] 48909/75 Heading G2J The entrance and exit slits at 27 are under programmed control of a cam 3 having at least one logarithmic profile for each grating and, further, arranged alternately on the inside and the outside of the groove to eliminate dead movement. Follower 10 drives an interlog cam 25 to carry the width of the slits in accordance with wave member. A system 28 allows the operator to superimpose manual control on slit width to operating conditions.
Patent GB-1188109-A (GB)
Title: Improvements in or relating to a novel Bis-(p-Chlorophenoxy)-Acetic Acid Ester
Inventor: GRIOT RUDOLF GUSTAV
IPC: C07D453/02
Filed: 1967-04-24
Abstract: 1,188,109. Bis-(p-chlorophenoxy) - acetic acid 1 - methyl - piperidyl - (4) ester. SANDOZ Ltd. 24 April, 1967 [29 July, 1966; 5 Dec., 1966], No. 49342/69. Divided out of 1,187,501. Heading C2C. Novel bis - (p - chlorophenoxy) - acetic acid 1 - methyl - piperidyl - (4) ester and acid addition and quaternary ammonium salts thereof are prepared (a) by reaction of a bis-(pchlorophenoxy) - acetic acid C 1-4  alkyl ester with 1 - methyl - 4 - hydroxypiperidine ; (b) by reaction of a bis-(p-chlorophenoxy)-malonic acid di-C 1 -4 alkyl ester with 1-methyl-4-hydroxypiperidine at a temperature of at least 110 C.; or (c) by reaction of bis-(p-chlorophenoxy)-acetyl chloride or bromide with 1- methyl - 4 - hydroxy - piperidine or an alkali metal salt thereof; followed optionally by salification of the product. Pharmaceutical compositions having hypocholesteremic and hypolipemic activity comprise, as active ingredient, bis-(p-chlorophenoxy) - acetic acid 1 - methylpiperidyl - (4) ester or a pharmaceutically acceptable acid addition or quaternary ammonium salt thereof, in admixture with a pharmaceutically acceptable inert diluent or carrier, and may be administered orally.
Patent GB-1525400-A (GB)
Title: Semiconductor device manufacture
IPC: H01L21/302
Filed: 1975-12-02
Abstract: 1525400 Semiconductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 2 Dec 1975 [5 Dec 1974] 49418/75 Heading H1K Contacts are formed on a semiconductor device by providing a Pd-containing layer 5, Fig. 3, on an insulating layer 4 on a semiconductor body 1, 2, removing the Pd-containing layer 5 and the insulating layer 4 in regions where the device contacts are to be provided to form windows 7, depositing layers 8, 9, Fig. 5, of conductive material, different from the Pdcontaining material, on the structure, and exposing it to hydrogen which is absorbed by the Pd in the layer 5 which swells so that it can be removed together with the conductive layers 8, 9 above it, to leave the contacts in the windows 7. The layers 4, 5 in the windows 7 are removed by ion-etching through a photoresist mask 6 and the parts of the Pd-containing layer 5 which swell on absorbing hydrogen are removed by compressed air. The method may be used to form a Schottky diode or an emitter contact of a transistor, in which the semiconductor is Si, the insulating layer 4 is Si-oxide or glass, and the conductive layers are Ti, Au, Ni, Cr, Pt or Al. The layer 5 may be pure Pd.
Patent GB-1371783-A (GB)
Title: Timing and or triggering means for use with transistor of solid  state ignition systems on internal combustion engines
IPC: F02P7/067
Filed: 1971-10-08
Abstract: 1371783 Ignition systems; timing ignition C BOWDEN 8 Oct 1971 [20 Oct 1970] 49664/70 Heading F1B In a triggering and/or timing control system for transistorized or solid state ignition systems a moving member, driven by an engine, amplitude modulates an oscillator operating in the frequency range 0À5 to 4À0 megaHertz, in such a manner as to convey information regarding crank-shaft position and/or engine speed which may be used for determining the ignition point or triggering point. The output from the oscillator is demodulated and a substantially "sawtooth" waveform is obtained. The demodulated output is applied to a voltage operated switching circuit, for example, a Schmitt trigger circuit, via a potentiometer, one arm of which may be varied to adjust the voltage and thus the engine crank angle at which the trigger circuit is operated. In a preferred form of the invention the oscillator is a Colpitts oscillator, the amplitude of oscillation of which is highly susceptible to changes in "Q" of an inductor of the oscillator. The inductor is used as a proximity sensor and may be associated with a lobed disc or drum rotated by the engine. Control of the firing point may also be achieved by an auxiliary voltage fed to the input of the trigger circuit by means of an adding circuit. The way in which the system may be employed to control ignition timing according to engine speed or vacuum, is described.
Patent GB-1477080-A (GB)
Title: Substituted acetone ethylene ketals
IPC: C07D209/48
Filed: 1975-09-03
Abstract: 1477080 Substituted acetone ethylene ketals UPJOHN CO 3 Sept 1975 [12 Sept 1974] 49856/76 Divided out of 1477079 Heading C2C The invention comprises compounds of the general Formula I wherein A is -NH 2  or phthalimido; B is -NH 2 , -N(CH 3 ) 2 , N 3 , Br or Cl provided that A and B are not both simultaneously NH 2 ; and R<SP>1</SP> and R 0  are independently H, CH 3  or C 2 H 5  which may be prepared, (a) when A is phthalimido, by reaction of a compound of Formula XI with bromine or chlorine to obtain a compound of Formula I where B is Br or Cl which may be further reacted with sodium azide to obtain a compound of Formula I wherein B is N 3  which on reduction with hydrogen in the presence of palladium gives rise to a compound of Formula I wherein B is NH 2  and this may be reacted with formaldehyde and hydrogenated to obtain a compound of Formula I wherein B is -N(CH 3 ) 2  or, (b) when A is NH 2  by reacting the corresponding compound of Formula I wherein A is phthalimido with hydrazine hydrate in ethanol. The compounds of Formula XI wherein R 1  is H and R 0  is H or CH 3  are prepared by reaction of the corresponding ketone with ethylene glycol in the presence of H 2 SO 4  and p-toluene sulphonic acid. 1 -Phthalimidobutanone is prepared by reaction of potassium phthalimide with 1-bromobutanone.
Patent GB-1494149-A (GB)
Title: Integrated circuits
IPC: H01L29/732
Filed: 1975-12-05
Abstract: 1494149 Integrated circuits SIEMENS AG 5 Dec 1975 [19 Feb 1975] 49938/75 Heading H1K In an integrated circuit comprising an inversely operated transistor as shown in Fig. 2, of which the zone conductivity types may be reversed, the emitter zone consists essentially of a buried zone 3 and a similarly heavily doped zone 15 of the same conductivity type extending upwards through epitaxial layer 2 towards base zone 6. The structure shown, which is an I<SP>2</SP>L transistor, the base of which is fed with current by injector zone 8, may be formed by first implanting or diffusing a slow diffusing impurity, e.g. Sb or As, into an area 3 of P-type substrate 1, similarly introducing a faster diffusing impurity, e.g. As or P, or a higher concentration of the same impurity into area 15 within zone 3, then epitaxially depositing layer 2 and forming by diffusion or implantation first emitter connection zone 4, then base zone 6 and injector zone 8 and finally collector zone 7, the impurities in areas 3 and 15 diffusing further in these later steps to produce the pedestal emitter structure shown. The provision of zone 15 improves the emitter efficiency and reduces emitter capacitance.
Patent GB-1330390-A (GB)
Title: Proteolytic enzyme and its preparation
IPC: C12N9/52
Filed: 1971-10-29
Abstract: 1330390 Dough improvers RHONE-POULENC SA 29 Oct 1971 [30 Oct 1970] 50384/71 Heading A2B [Also in Divisions C3 and C5] Foodstuffs contain the proteolytic enzyme 25, 048 RP produced by aerobically cultivating Streptomyces nebuloxes DS 14, 579 NRRL 3864. Specific examples refer to a bread dough comprising wheat flour, yeast, salt, water and enzyme 25, 048 RP and a concentrate used in biscuit making comprising starch and enzyme 25, 048 RP. The presence of the enzyme in the bread dough facilitates working the dough, reduces the fermentation time, and provides a more uniform cell structure in the loaf.
Patent GB-1138699-A (GB)
Title: Igniting gas burners
Inventor: MOPPETT DAVID JOHN
IPC: F23Q3/00
Filed: 1966-11-12
Abstract: 1,138,699. Igniting burners. GAS COUNCIL. 13 Nov., 1967 [12 Nov., 1966], No. 50821/66 Heading F4T. In the ignition of a gas burner 1 which is supplied with gas through a pipe 2 controlled by a valve 4 and with air through a pipe 3 controlled by a valve 5 an ignition source 9 is energized to spark continuously, valve 5 is opened and a pilot gas control valve 10 is opened so that gas and air are supplied through metering orifices 7, 6 respectively in a predetermined ratio which is below the lower combustion ratio of air to gas and as the mixture zone 11 moves down the gas pipe 2 the ratio of air to gas present in the pipe near the ignition source falls to a value below the upper combustion ratio and the gas ignites to form a burning plug which is swept forward to the-combustion chamber where a pilot flame is maintained by the supply of primary air through valve 5. The mixture flowing past the ignition source 9 behind the zone 11 does not support combustion and fouling of the ignition source with carbon is prevented. To light the main burner the ignition source 9 is de-energized and the main gas valve 4 opened.
Patent GB-1267729-A (GB)
Title: Television synchronizing pulse separator
IPC: H04N5/08
Filed: 1969-10-16
Abstract: 1,267,729. Television. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 16 Oct., 1969 [19 Oct., 1968], No. 50834/69. Heading H4F. A sync. separator comprises an amplitude limiter employing a transistor the collector electrode of which is coupled to the output terminal of the separator and is also coupled to a supply source by a resistor, the base electrode is coupled to the junction of a capacitor and a leakage resistor forming a time constant circuit, and the emitter electrode is connected to the input terminal of the separator through an ohmic resistor. A negative modulation carrier signal 5 is detected by diode 7 and applied to an emitter follower 10 biased by a voltage source Vo. The resulting signal 12 is applied to an AGC circuit 15, to a terminal 13 which may be connected to a video amplifier, and to the sync. separator which comprises a transistor 17 in the common base configuration. The base of transistor 17 is biased from a voltage source Vo by means of a resistor 19 and a capacitor 18. During the line sync. pulses transistor 17 conducts and capacitor 18 is discharged through resistor 21 with a short time constant, and during the picture interval transistor 17 is cut off and capacitor 18 charges through resistor 19 with a long time constant. The voltage 26 on capacitor 18 therefore follows the peak negative level of the signal and the output at the collector of transistor 17 comprises the separated sync. pulses which are then inverted, amplified and limited by transistor 22 to equalize their amplitudes. When field sync. pulses occur capacitor 18 discharges to a voltage somewhat more positive than the peak sync. level due to the action of the potential divider constituted by resistors 20 and 21 so that during these long pulses noise voltages on the peaks of the sync. pulses are removed. An interference limiter may be included to prevent operation of the sync. separator during impulse noise.
Patent GB-1451027-A (GB)
Title: Arrangement for regulating working pressure in a hydrodynamic  torque converter
IPC: F16H61/64
Filed: 1974-11-25
Abstract: 1451027 Hydrodynamic transmission control SAAB-SCANIA AB 25 Nov 1974 [7 Dec 1973] 50973/74 Heading F2W A control for regulating the pressure in a motor vehicle hydrodynamic torque converter comprises a valve 14 controlled by a solenoid operated pilot valve 17 which is actuated by an electronic control circuit 19 to open the valve 14 when the vehicle speed falls below a predetermined value. Opening of the valve 14 may additionally require the engine throttle to be closed and a gear ratio established in a following change speed gear. The torque converter 1 is normally fed with liquid from a pump 3 through a pressure regulating valve 4 which additionally supplies pressure liquid to a control line 16 and to a line 6 supplying additional hydraulic apparatus. Liquid leaving the torque converter I through a line 7 passes through a cooler 9 and is returned to the torque converter through a one-way valve 10. The valve 14 is normally held closed by control pressure liquid 18 applied thereto through the pilot valve 17. When the valve 17 is actuated it cuts the control pressure supply 18 to the valve 14 which is opened by the torque converter pressure to drain fluid from the torque converter and thus reduces the pressure therein to a minimum value. The electronic circuit, Fig. 2, comprises an output speed sensor which provides an alternating voltage with a frequency proportional to speed. The alternating voltage from the sensor 21 is fed to a pulse shaper 22 and is converted to a stable square wave having the same frequency as the alternating voltage. The square wave is fed through a frequency doubler 23 and filter 24 to obtain a continuous voltage proportional to vehicle speed. A comparator 25 compares the speed responsive voltage with a reference voltage and produces a signal to close the valve 17 when the speed responsive voltage is less than the reference voltage. The comparator 25 additionally receives signals responsive to the engine throttle being closed and to a gear ratio being established. The signal to close the valve 17 only being established when the vehicle speed is below the predetermined value, the engine throttle closed and a gear ratio is established.
Patent GB-1410045-A (GB)
Title: Open hearth furnaces
IPC: C21C5/04
Filed: 1972-11-06
Abstract: 1410045 Open hearth furnaces SIDNEY STEEL CORP 6 Nov 1972 [22 March 1972] 51019/72 Heading F4B A basic open hearth furnace for the production of steel has banks of tuyeres extending through the magnesite back wall 4 on each side of the taphole, each tuyere comprising an inner tube 13 and a coaxial outer tube 14 cemented into tar impregnated high density magnesite brick interlocked by recesses and protuberances, oxygen being supplied to tube 13 by valve controlled line 13a and a hydrocarbon, e.g. propane to the space between the tubes by valve controlled line 14a. The tuyeres are assembled side by side to form the banks (Fig. 5). The furnace is reversibly heated by end oil burners 8 associated with conventional air heating regenerators (9, Figs. 1 and 3). In operation lime, limestone, ore and scrap (up to about 60% by weight) are charged into the furnace, and heated by burners 8 and the tuyeres. Finally molten iron to complete the charge is added, burners 8 cut off and the oxygen/propane flow increased, the proportion of propane being about 3¢% by volume. The oxygen supply through the tuyeres may be out off after refining or after tapping and replaced by argon or nitrogen.
Patent GB-1277585-A (GB)
Title: Toothpastes
Inventor: CLIPPINGDALE J
IPC: A61K8/24
Filed: 1968-10-29
Abstract: 1277585 Toothpastes UNILEVER Ltd 22 Oct 1969 [29 Oct 1968] 51286/68 Heading A5B Toothpaste compositions comprise a milled alpha alumina trihydrate, which (when incorporated into an unlacquered aluminium tube as a toothpaste) would cause corrosion and gassing to occur, stabilised and the corrosion inhibited by including in the toothpaste a source of monofluorophosphate ions. The source of monofluorophosphate ions may be an alkali metal (e.g. sodium), alkaline earth metal, ammonium, amine (e.g. triethanolamine) or stannous monofluorophosphate.