baber/WOPTO huggingface dataset:
Patent GB-1420636-A (GB)
Title: Cyclopropane derivatives
IPC: A01N37/08
Filed: 1973-11-09
Abstract: 1420636 cyclopropane derivatives ROUSSEL UCLAF 9 Nov 1973 [10 Nov 1972] 52169/73 Heading C2C The invention comprises stereoisomers of compounds of the formula wherein the olefinic double bond is of E-structure and X represents an alkyl group containing from 1 to 6 carbon atoms (optionally substituted by a halogen atom, or by an alkoxy group); a benzyl group (optionally substituted by one or more substituents selected from alkyl, alkenyl, alkadienyl, methylenedioxy and benzyl groups, and halogen atoms); a cyclohexenedicarboximido-methyl group having the olefinic double bond at any position in the carbocyclic ring and optionally substituted on the ring by one or more halogen atoms, methyl groups or acetoxy groups; a group of formula wherein Y 1  and Y 2 , which may be the same or different, each represents a hydrogen atom, an alkyl, alkenyl or alkadienyl group and Y 3  represents a hydrogen atom, or an optionally substituted alkyl, alkenyl, alkadienyl, aryl or heterocyclic group; or a group of formula wherein Z represents an alkyl, alkenyl, alkynyl, aryl, aralkyl, cycloalkyl, cycloalkenyl or heterocyclic group; and Y represents an alkyl group containing from 1 to 6 carbon atoms. The invention further comprises stereoisomers of compounds of the formulae The compounds of Formula I may be obtained by reducing a compound of the formula to give a compound of Formula III, reacting this with a strong base and an esterifying and etherifying agent and if desired saponifying the ester function to give a compound of Formula IV<SP>1</SP> and subsequently converting this into the desired ester.
Patent GB-1175989-A (GB)
Title: Process for the Production of 1:2:4:5 Tetra-Alkyl Benzenes.
Inventor: FRASER ROBERT NEIL
IPC: B01J27/06
Filed: 1967-11-16
Abstract: 1,175,989. Diisopropylated xylenes. BP CHEMICALS (U.K.) Ltd. 14 Oct., 1968 [16 Nov., 1967], No. 52207/67. Heading C5E. Diisopropylated xylenes having the alkyl groups in 1-, 2-, 4-, 5-positions are produced by reacting propylene and xylene in the liquid phase, at elevated temperature, in the presence of AlCl 3 , the molar ratio of propylene to xylene being less than 2, preferably 1À6-1À7. The A1C1 3  may be activated before use with HC1 or isopropyl chloride. Mono-isopropyl xylenes produced as by-products may be recycled, in which case the combined propylene is included in calculating the overall mole ratio.
Patent GB-1364156-A (GB)
Title: Method of and entry-guide for feeding stock to a rod rolling re duction mill
IPC: B21B39/14
Filed: 1972-11-13
Abstract: 1364156 Rolling mill entry guides COPPER REFINERIES PTY Ltd 13 Nov 1972 [18 Nov 1971] 52400/72 Heading B3M The entry guide to a plural strand rolling mill comprises a pair of opposed double-grooved freely rota table rollers having axes parallel to those of the mill rolls. Stock to be rolled enters the grooves alternately, so that when a leading end encounters the rollers, they are being driven at the correct speed by a length of stock already passing through. As shown, the guide comprises two body parts 6, 7 spaced by adjustable set screws 13, located by dowels 11 and holes 12, and secured together by machine bolts (not shown). The rollers 18 are freely rotatable on shaft 17 non-rotatably secured in the body parts (see Fig. 3, not shown). Tapered runway grooves 15 in the body parts have flared entry ends (not shown). The stock is preferably of elliptical section, which contacts the floors of the roller grooves at the flattened ends of its major axis. The mill rolls may be of the kind supported by journals at each end, or at one end only.
Patent GB-1527109-A (GB)
Title: Cephalosporin derivatives and process for preparing same
IPC: C07D333/34
Filed: 1975-12-22
Abstract: 1527109 Heterocyclic sulphinyl cephalosporins ASAHI KASEI KOGYO KK 22 Dec 1975 [28 Dec 1974 11 June 1975 15 July 1975] 52467/75 Heading C2C Novel compounds of the Formula (I)  in which the sulphinyl group is in the R form and wherein R 1  denotes a heterocyclic group or a heterocyclic group-substituted C 1-8  alkyl, or an aryl or aralkyl group, R 2  denotes H or C 1-8  alkyl, A is hydrogen, a hydroxyl group, C 2-9  alkanoyloxy, a basic nitrogen-containing group, a quaternary ammonium group, an N-substituted or unsubstituted carbamoyloxy group, an aroyloxy group, aralkanoyloxy group, C 1-8  alkoxy group, mercapto, C 1-8  alkyl mercapto group, aryl mercapto group, heterocyclic-substituted mercapto group, an azido group, or a thiouronium group, M stands for a hydrogen atom, a C 1-8  alkyl, aralkyl, tri-substituted silyl group or a group -CH 2 OCOR 3  in which R 3  is C 1-8  alkyl, aryl or aralkyl, phenacyl, a pharmacologically acceptable non-toxic cation, an anionic charge or a monovalent carbon-oxygen bond when taken together with A, and n is 1, 2 or 3, wherein said R form is defined, to indicate an optical isomer having stereochemically the same structure as that of an optical isomer having a positive specific rotation [α] D  in ethanol between two sulphinyl group stereoisomers of a compound represented by the Formula (II) may be obtained (A) by reacting a compound of Formula III with a carboxylic acid of Formula II in which the sulphinyl group is of the R form, or with a reactive derivative thereof; (B) when A is a nucleophilic group, by condensing 7-aminocephalosporanic acid with a carboxylic acid of Formula II and substituting the acetoxy group with a nucleophilic group; (c) by acylating a compound of Formula III with an acid of Formula II or its reactive derivative with the aid of an acylating enzyme, or (D) when the starting carboxylic acid (II) contains an equal or minor amount of an isomer having in the sulphinyl group a stereostructure reverse to that of the R form (having a negative specific rotation in ethanol), by subjecting the resulting cephalosporin compound to chromatography, for example reversed phase partition chromatography or to recrystallization treatment whereby the intended compound of the R form is obtained. Pharmaceutical compositions having high antimicrobial activity to Gram positive and Gramnegative bacteria, comprise a compound of Formula I above in admixture with a pharmaceutically acceptable non-toxic carrier, in forms suitable for oral or parenteral administration.
Patent GB-1269547-A (GB)
Title: Improvements in or relating to push-button switches
Inventor: FRYDMAN EMANUEL
IPC: H01H36/00
Filed: 1969-10-30
Abstract: 1,269,547. Movable magnet switch. PYE T.M.C. Ltd. 19 Oct., 1970 [30 Oct., 1969], No. 53202/69. Heading H1N. A push-button switch as in the parent Specification has a hollow portion of the pushbutton assembly surrounding part of the contact unit and the push-button assembly 12 carries an annular permanent magnet 15 which in the inoperative position is influenced by an adjustable ferrous member 9. The contact unit 13 is retained by a resilient plastics washer 31 and a bent-over connector 34. Reference has been directed by the Comptroller to Specification 1,162,550.
Patent GB-1355150-A (GB)
Title: Light emitting diode driver circuit
IPC: H03K3/42
Filed: 1972-11-17
Abstract: 1355150 Supply circuits for light emitting diodes HEWLETT-PACKARD CO 17 Nov 1972 [26 Nov 1971] 53226/72 Heading H2H A circuit comprises a light emitting diode 20, an inductance 18, a voltage source 10 and a switch 16 for applying current pulses to the diode, the switch being operable in a first conductive mode to store energy in the inductance and in a second non-conductive mode to enable current to flow from the inductance through the diode. In the presence of a pulse supplied from a terminal 12 to the switch 16 which comprises a transistor, the transistor is conductive and current flows through the inductance 18. The diode 20 is reverse biased during this time but on termination of the pulse, the transistor is switched off and the energy stored in the inductance forward biases the diode to enable it to emit light. The frequency of the pulses is sufficiently high to prevent flicker. In a modification the diode is isolated from the source 10 by a transformer coupling.
Patent GB-1525060-A (GB)
Title: Electrical switch
IPC: G04B27/04
Filed: 1976-12-22
Abstract: 1525060 Electronic watches DAINI SEIKOSHA KK 22 Dec 1976 [29 Dec 1975] 53535/76 Heading G3T [Also in Division H1] An electrical switch comprises a rotatable cam 8 having a projection 9' engageable with a contact spring 13 and a projection 9 engageable with a cam spring 10, the arrangement being such that when the cam 8 is rotated by drive means 4 the cam spring 10 is flexed by the cam projection 9 and then moves under its own resilience to apply a rotational force to the cam 8 causing the other projection 9' to move the contact spring 13 into contact with a fixed contact 18, 19. The switch is mounted in an electronic watch having an axially movable and rotatable stem 4 mounting a clutch wheel 1 and a freely rotatable pinion 2 which meshes with a transmission wheel 5 rotatably mounted together with the cam 8 on a pin 6. A pin and slot 16, 17 lost motion mechanism is provided between the transmission wheel 5 and cam 8. When the stem 4 is axially moved to drivingly connect it to the clutch wheel 1, the clutch wheel 1 meshes with the pinion 2 whereby rotation of the stem 4 in one direction causes clockwise rotation of the cam 8 after the lost motion 16, 17 has been taken up. The cam projection 9 is moved past a projection 10a of the spring 10 to cause the latter to flex and then impart a rotational force to the cam 8 which causes the other cam projection 9 to move the contact spring 13 relative to a contact 18. If the cam 8 is rotated anti-clockwise by the stem 4, the cam projection 9' engages the cam spring 10 and the cam projection 9 moves the contact spring 13 into engagement with another fixed contact 19. The contacts 18, 19 are connected to circuits which control time correction and resetting.
Patent GB-1473743-A (GB)
Title: Styrene acrylonitrile copolymers with high dimensional stab ility under heat
IPC: C08F218/02
Filed: 1974-12-11
Abstract: 1473743 Styrene/(meth)acrylonitrile copolymers BAYER AG 11 Dec 1974 [12 Dec 1973] 53564/74 Heading C3P Styrene/(meth)acrylonitrile copolymers with improved high temperature dimensional stability are prepared by polymerizing the monomers in the presence of at least one aliphatic monoolefine as a molecular weight regulator, said olefine being incorporated into the polymer. Preferred novel products resulting from the process are copolymers containing (a) 5-85 wt. per cent of (meth)acrylonitrile units, (b) 14À99-93À1 wt. per cent of styrene units and (c) 0À01-1À9 wt. per cent of units of an aliphatic monoolefin the sum of (a), (b) and (c) being 100%. Suitable monoolefines are ethylene, propylene, butene-1, butene-2, isobutylene, a straight or branched pentene, a hexene or an octene. In the examples, the polymerizations are carried out in aqueous media.
Patent GB-1248857-A (GB)
Title: An audio-frequency dynamic sound range compressor
IPC: H03G7/06
Filed: 1969-11-03
Abstract: 1,248,857. Volume compressors. AKUSTISCHE U. KINO GERATE G.m.b.H. 3 Nov., 1969 [4 Nov., 1968], No. 53894/69. Heading H4R. Volume compressor circuit includes a differential transformer U 2  with the signal voltage applied to one half of the primary 1 at a fixed level and to the other half of the primary 2 via an impedance element R s , whose value is controlled according to the signal level applied to the compressor. The impedance element may be a bridge network of diodes, as shown in Fig. 1, or of transistors, or may be a single diode or the emitter collector impedance of a transistor, Figs. 3a, 3b or 3c (not shown). The control voltage for the impedance element is derived from the input via an amplifier V and rectifier circuit G. The compressor may be built into the microphone housing.
Patent GB-1112506-A (GB)
Title: Improved cartridge for use in sealing rods in holes drilled in rocks
IPC: B65D81/32
Filed: 1966-12-02
Abstract: 1,112,506. Packages; multi-ply bags. SOCI- •T• DES EXPLOSIFS TITANITE. 2 Dec., 1966 [2 Dec., 1965], No. 54173/66. Headings B8C and B8K. [Also in Divisions E1 and F2] A double-walled paper bag made from inner and outer paper tubes has the inner tube externally coated with a catalyst which will react with a mixture of plastics, accelerating agent and filler inside the inner tube, when the bag is destroyed, to cause the mixture to set. Each end of the bag is formed by folding the end of the tube over, folding it back, round to the other side of the bag, and then securing it with a simple clip. Bags thus constructed and filled are used to implant rods &c. into holes drilled in rocks by part-filling the holes with the bags, and then inserting a rod in each hole and turning it to destroy the bags. The mixture sets and secures the rod.
Patent GB-1283627-A (GB)
Title: Dosimeter for measuring ionizing radiation
IPC: G01T1/15
Filed: 1970-11-16
Abstract: 1283627 Measuring radiation intensity INTERNATIONAL STANDARD ELECTRIC CORP 16 Nov 1970 [15 Nov 1969] 54401/70 Heading G1A [Also in Division G4] Ionizing radiation is detected by Geiger Muller or proportional counting tubes, scintillation crystals, semi-conductor detectors to convert each dose into a burst of pulses 3 fed to a counter 8. Depending on the connections 25 an adjustable dividing ratio is effected to pass a square pulse 6 to an electromagnetic counter or printer.
Patent GB-1421478-A (GB)
Title: Tape recording apparatus
IPC: H04N5/78
Filed: 1973-11-27
Abstract: 1421478 Automatic positioning of a data track INTERNATIONAL BUSINESS MACHINES CORP 27 Nov 1973 [1 Dec 1972] 54952/73 Heading G3N The helical scan of a transducer is made parallel to the oblique tracks on a data tape by adjusting the tape transport configuration in accordance with the detected angle of the track on the tape. In the system described the oblique data tracks carry address information at one end and this is sensed by head 16 and is continuously monitored until the required track is found when a signal from compare 36 passes to operator 50 where it provides an enabling signal to a logic network. The enable signal allows track crossing pulses derived from heads 16, 18 to pass to track crossing latches which supply signals to a motor control circuit which includes a counter on which a count corresponding to the distance d is pre-set and counted down by tachometer pulses until the correct track is reached. While the tape is running to the desired track the detector 60 determines any time difference that occurs between the track crossing pulses due to misalignment of the tape and the control 62 adjusts the transport configuration to mode the data tracks parallel to the track of rotating head 2. The tape may be driven in either direction to reach the required track.
Patent GB-1149427-A (GB)
Title: Process and apparatus for determining combined nitrogen in hydrocarbons
IPC: G01N27/00
Filed: 1966-12-09
Abstract: 1,149,427. Gas analysis. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Dec.9, 1966 [Dec.10, 1965], No.55250/66. Heading GIB. [Also in Division B1] In a process for determining the content of combined nitrogen in hydrocarbons, a sample of the substance to be examined is burnt in an excess of oxygen in an oxy-hydrogen flame 12 in combustion space 11, the combustion gas is cooled in space 14 to a temperature at which water vapour condenses and can be removed at 19, and the NO content of the gas is determined, for example by absorbing any sulphur and chlorine compounds in hydrogen peroxide solution in washing bottle 20, converting the NO to NO 2  in tube 22 by reaction with ozone generated by applying a suitable voltage across electrodes 23, dissolving out the NO 2  in scrubbing tower 24 and measuring the electrical conductivity of the resulting solution in cell 27. In other embodiments the NO may be oxidized to NO 2  using aqueous acidic KMNO 4  or solid CrO 3  at at least 100‹C. Alternatively, the NO may be absorbed on a solid absorbent such as NaClO 2  carried on Al 2  O 3 , then reduced to NH 3  and the NH 3  determined by titration. Example refer to determination of nitrogen in kerosine, lubricating oil, shale oil, naphtha, light gas oil.
Patent GB-1498401-A (GB)
Title: Drive arrangements
IPC: B01F15/00
Filed: 1974-12-23
Abstract: 1498401 Torsionally resilient drive mechanism ELEKTROGERATEWERK SUHL VEB 23 Dec 1974 [27 Dec 1973 2 Sept 1974 (3)] 55367/74 Headings F2U and F2Q [Also in Division B1] A drive arrangement for preventing the destruction of gearing teeth due to excess loading whilst providing efficient drive at low loads comprises, between an input drive member and an output drive member, a first drive means including gear means and a torsion spring coupling and a second drive means including gear means and a lost-motion connection so that drive passes through the second drive means as well as the first only after the torsion spring coupling has been stressed sufficiently by the load to close up the lost-motion connection, the area of input gear or output gear teeth which transmits the drive being greater when both drive means participate. In the arrangement illustrated in Figs. 1, 4 and 6, a driving worm 6 engages a wormwheel 4 rotatably mounted on a shaft 1 and a wormwheel 8 fixed on a shaft 10, the worm-wheel 4 driving a spur gear 5 through a spring 13 and the wormwheel 8 having an arcuate slot 84 into which extends a pin 83 protruding from a spur gear 7 rotatably mounted on shaft 10. If the load on an output shaft fixed to shaft 1 increases above a limit set by the spring 13 the relative movement between wormwheel 4 and spur gear 5 causes the pin 83 to engage an end of slot 84 so that drive passes through both worm-wheels. The spring 13 can be a helical spring (as shown), or it can be of resilient material, or it can be a spiral spring (Fig. 13, not shown), or there may be a pair of compression springs (Fig. 11, not shown) or tension springs (Fig. 12, not shown), a resilient plate (Fig. 14, not shown), a set of internested helical springs (Fig. 35, not shown) or a set of spiral springs (Fig. 34, not shown). To allow for the greater torsion angle of the lastmentioned embodiments the slot in the wormwheel 8 may be a spiral and the pin may be guided in a radail groove in the spur gear (Fig. 28, not shown) or the slot may be a screw in a cylinder with the pin guided in an axial slot (Fig. 31, not shown) or there may be a stack of plates with spiral grooves (Fig. 30, not shown) or an internested set of screwed cylinders (Fig. 32, not shown). The worm drive may be replaced by spur gear drives to outer and inner teeth of an output ring gear (Fig. 44, not shown), or as shown in Fig. 45, there may be an input shaft 1 having a driving member 136 fixed to it which drives a gear 138 through the spring 13, a second gear 133 being driven through the pin-and-slot lost-motion connection when the load, driven by an internally toothed rim 127, increases above a set amount. The lost-motion connection can comprise a roller or ball engaging grooves in the worm gear 8 and spur gear 7 (Figs. 8, 9, not shown). Wormwheels and spur gears can be of plastics material. A corrugated compression spring 25 (Fig. 45) provides damping of the torsional movement. The drive may be for driving accessories of a handheld beater or stirrer.
Patent GB-1284464-A (GB)
Title: Process for the manufacture of isoprene from isoamylenes and catalyst therefore
IPC: H01H3/40
Filed: 1969-11-12
Abstract: 1284464 Oxidation catalyst STANDARD OIL CO 12 Nov 1969 [30 Dec 1968 20 Oct 1969] 55385/69 Heading B1E [Also in Division C5] A catalyst composition consisting of a calcined catalytic oxide complex of an alkali metal, bismuth, iron, molybdenum and optionally oxides of alkaline earth metals, phosphorus, arsenic, antimony, cobalt, or nickel, has the formula wherein Q is an alkali metal, R is an alkaline earth metal, T is phosphorus, arsenic and/or antimony, m is cobalt and/or nickel; and a, b and c are 0.1 to 12, d is 0.1 to 8, e is 0 to 8, f is 0 to 6, g is 0 to 12 and x is number determined by the valence requirements of the other elements present. The catalyst may optionally be supported, specified carriers being alumina, pumice, silicon carbide, zirconia, titania, silica, alumina-silica, and the inorganic phosphates, silicates, aluminates, borates and carbonates. The composition is activated by calcining 500‹F to 1250‹F for 2 to 24 hours, optionally followed by further activation comprising heat treating at above 800‹F, e.g. at 800-1400‹F for 1 to 48 hours, in the presence of an oxygen containing gas.
Patent GB-1369694-A (GB)
Title: Actuating devices
IPC: H01H67/26
Filed: 1971-12-01
Abstract: 1369694 Cams TELEFONAKTIEBOLAGET L M ERICSSON 1 Dec 1971 [30 Dec 1970] 55850/71 Heading F2K [Also in Division H1] A cross-bar switch has contacts at each cross point operated by a cam follower 4 which is mounted on a spring 5 on the movable setting bar (a y-bar) 2 arranged so that if either the crossing (x) bar 1 or the y-bar 2 is moved, the follower 4 is approached by or approaches a cam surface 11 on the bar 1 and on subsequent movement of the other bar 2 or 1 the follower 4 moves up the cam surface to close contacts 6, 7. If the bar 2 is then reset, the end of the spring 5 engages a latch spring (12) (Fig. 4a, not shown) and the contacts 6, 7 are held closed until the bar 2 is operated again. Bars X1 to X4 are moved by a group A of respective electromagnets and bars X5 to X8 are moved by magnets in group C to move in opposite directions to the other X bars. Bars Y1 to Y4 and Y5 to Y8 have groups of operating magnets BXD respectively and also move in opposite directions.
Patent GB-1292973-A (GB)
Title: Multi-valued logic circuits
Inventor: TURQUETTE ATWELL RUFUS
IPC: H03K19/00
Filed: 1969-11-14
Abstract: 1292973 Logic circuits A R TURQUETTE 14 Nov 1969 55922/69 Heading G4H A logic circuit comprises M input circuits P 1 , P 2 , P 3 , each having M output terminals, each input circuit energizing predetermined ones of the output terminals with signals representative of a logic state assumed by the input circuits, M output signal receivers 1, M- 1 binary gating devices 2, each of the gating devices connecting a first receiver of lower numerical order with a second receiver of the next higher numerical order when in one state and disconnecting the first and second receivers when in the other binary state, M connecting means, one of the connecting means coupling the first output terminals of lowest numerical order of all of the input circuits to the first of the receivers and each subsequent connecting means coupling the next numerical order output terminals of all of the input circuits to actuate a respective gating device of successively decreasing numerical order starting with that of higher numerical order, whereby when the ith output terminal of any one of the input circuits is energized, M - i + 1 receivers are energized. Fig. 21 shows a "NAND" circuit with M=3 wherein the receivers are lamps and the gating devices are relays, the contacts of which are closed when the relay coil, represented by a circle, is deenergized. This logic circuit, as well as other logic circuits, is derived from theorems of M- valued logic which are proved in the description.
Patent GB-1361870-A (GB)
Title: Azo pigments of the beta hydroxynaphthoic acid series
IPC: C09B43/32
Filed: 1971-12-03
Abstract: 1361870 Pigmented polymer compositions BADISCHE ANILIN- & SODA-FABRIK AG 3 Dec 1971 [4 Dec 1970] 56175/71 Headings C3P and C3R [Also in Division C4] Application Example 1 describes a coating composition containing by weight 5 parts of the pigment and 95 parts of a baking lacquer mixture, e.g. containing 70 parts of a 60% solution of coconut alkyd resin in xylene, and 30 parts of a 55% solution of melamine resin in a mixture of butanol and xylene. Titanium dioxide may be added.  Application Example 2 describes coloration of 100 parts by weight polystyrene with 0À05 parts of the pigment or with 0À2 parts thereof and 1À0 parts of titanium diomide.