baber/WOPTO huggingface dataset:
Patent GB-1042646-A (GB)
Title: Control system in a magnetic recording and reproducing apparatus
IPC: H04N5/782
Filed: 1964-11-06
Abstract: 1,042,646. Control of A.C. motors; electric motors. NIPPON VICTOR KABUSHIKIKAISHA. Nov. 6, 1964 [Nov. 12, 1963], No. 45426/64. Headings H2A and H2J. In a magnetic recording and reproducing machine for television signals, revolving magnetic heads are driven by a synchronous motor at a speed governed by the vertical synchronizing pulses in the video signal during recording, and by the same signals reproduced from a separate track during replay. The heads motor is a two-phase machine having a permanent magnet rotor, the two-phase supply being obtained by transistor phase advance and delay circuits from a single-phase signal. In Fig. 3 (not shown), this signal is produced by a variable frequency oscillator 38, the output of which is made to automatically correspond to the synchronizing pulses taken from the video signal during record, and from the tape control track during replay. The signals are passed through various circuits for pulse shaping, e.g. by differentiation, and an integration stage eliminates short period errors. In an alternative arrangement (Fig. 1, not shown), the variable frequency oscillator is used during replay only; for recording the phase-splitting circuits work on the video synchronizing pulses after suitable shaping. The two-phase motor (Fig. 2, not shown), has a squirrel cage winding for starting and suitably magnetized ferrite discs 31, 31<SP>1</SP> at each end of the rotor so that it runs as a synchronous machine. It has four poles.
Patent GB-1484824-A (GB)
Title: Anchor
IPC: B63B21/44
Filed: 1975-10-31
Abstract: 1484824 Anchors P J KLAREN 31 Oct 1975 45494/75 Heading B7S An anchor has a shank 1 to which two flukes 2, 3 having together a Delta shape are hinged at 6. Trim plates 7, 8 are disposed on each side of the flukes, the width of the trim plates being less than the total width of the flukes. The outer ends of both trim plates are connected to the outer edges of the flukes by stabilizing plates 12, 13, 14, 15 which enclose an acute angle both with the direction of the shank when in its centre position and with the plane of the flukes.
Patent GB-1475249-A (GB)
Title: Lever-operated electrical switches
IPC: H01H23/30
Filed: 1975-11-03
Abstract: 1475249 Mechanical switches PYE Ltd 3 Nov 1975 45626/75 Heading H1N In a lever actuated switch for operating spring blade contacts 2, 3, Fig. 1 and in which the lever 9 moves from its central position about at least one pivotal axis 12, 13 arranged to one side of the lever axis, spring 20 acts upon the lever 9 with a toggle action and urges it towards its central position and at least one of its side positions. The spring 20, Fig. 4 may be of wire bent to a trapezium shape and arranged to engage notches 22 in a pair of dependent arms 26, 27 of the lever, each of which engages sliders 6, 6a respectively for operating separate sets of contacts. In modifications the spring 31 Fig. 9 may be a leaf spring which may be corrugated to avoid interference with the movement of the sliders 6 and may have one or more projections 33 for engagement with a side wall of a recess 18 to render the switch retractive. Similar arrangements for rendering the switch retractive are shown using wire springs in which a block (38) Fig. 13 (not shown) limits the pivotal movement of the spring to one side or in which the spring is inserted into a groove so that it is prevented from pivoting in both directions.
Patent GB-1269619-A (GB)
Title: Bistriazolyl-bisphenyl-methanes and their salts, process for their preparation, and their use as growth regulators
Inventor: REGEL ERIK
IPC: A01P21/00
Filed: 1970-09-25
Abstract: 1,269,619. Bis-(triazolyl), bis-(phenyl) methanes. FARBENFABRIKEN BAYER A.G. 25 Sept., 1970 [27 Sept., 1969], No. 45841/70. Heading C2C. [Also in Division C1] Novel 1,2,4-triazoles of the formula in which R and R<SP>1</SP> are hydrogen, F, Cl, Br, C 1-4  alkyl or optionally substituted aryl groups, X, X<SP>1</SP> and Y are halogen, -NO 2 , -CN, -CF 3 , alkyl, alkoxy, -S-alkyl, -SO-alkyl, -SO 2 - alkyl, each alkyl having 1-4 carbon atoms, phenyl, phenoxy, -S-phenyl, -SO 2 -phenyl or benzyl groups and m, n and p are 0, 1 or 2, and the acid addition salts thereof, are prepared by condensing the appropriate diphenyldihalomethane with a triazole in the presence of an acid-binding agent, e.g. a tertiary amine or inorganic base or excess triazole, and, if desired, forming the acid addition salts, e.g. the hydrochloride or lactate, by conventional methods. Preferred compounds are those derived from 1,2,4-triazole and unsubstituted or halo-, cyano-, nitro- or methoxy-substituted diphenyldihalomethanes. The novel compounds are plant growth regulants and can be used in the conventional manner as defoliants or to suppress unwanted growth, e.g. of grass.
Patent GB-943569-A (GB)
Title: 1-dialkylaminoalkyl-2-(ª -hydroxybenzyl)-5-nitrobenzimidazoles
IPC: C07D235/12
Filed: 1961-12-22
Abstract: The invention comprises compounds (analgesics) of the general formula: <FORM:0943569/C2/1> (wherein A represents a C1-6 alkylene group, R1 represents a di-(C1-6 alkyl)-amino group and R2 represents a phenyl or (C1-6 alkoxy)-phenyl group and acid addition salts thereof, and their preparation by reacting a 2-[di-(C1-6 alkyl)-aminoC1-6 alkylamino]-5-nitroaniline with mandelic or a (C1-6 alkoxy) mandelic acid or with a (C1-6 alkoxy) mandelic acid imino ether (e.g. as the hydrochloride). Specifications 862,175 and 864,698 are referred to.
Patent GB-947002-A (GB)
Title: Phenothiazine derivatives and processes for their production
Filed: 1961-12-22
Abstract: The invention comprises a phenothiazine having the general formula: <FORM:0947002/C2/1> their non-toxic, pharmaceutically acceptable acid addition salts, wherein X represents a hydrogen or a halogen atom and Am a dialkylamino group wherein the two alkyl radicals each contain at most 5 carbon atoms and may be bond to each other direct or by way of an oxygen atom or an alkylimino, hydroxyalkylimino or alkanoyloxy-alkylimino group the alkyl and alkanoyl residues of which each contains at most 5 carbon atoms and the preparation thereof by reacting, in the presence of a condensing agent, a compound of the formula: <FORM:0947002/C2/2> with a reactive ester of an appropriate amino cyclohexanol; or reacting a reactive ester of a phenolthiazine of the general formula: <FORM:0947002/C2/3> with an amine AmH; or (a) reacting under reducing conditions, a keto compound of the formula: <FORM:0947002/C2/4> with ammonia, an appropriate alkylamine or with an amine, AmH, or (b) converting the keto compound into its oxime reducing or hydrogenating the latter, then, in the same step or subsequently, reacting the amine obtained or that obtained from (a) with an appropriate oxoalkane under reducing conditions, or after reductive condensation, reduction or hydrogenation reacting such an amine or its N-alkyl derivative with a reactive ester of an appropriate alkanol; or decarboxylating a compound of the general formula: <FORM:0947002/C2/5>  Reactive esters III are prepared by reacting the alkali metal derivatives of aminocyclohexanols with cyclohexene oxide to give the possibly substituted 10 - (21 - hydroxycyclohexyl) - phenothiazines and reacting this with an inorganic halide or sulphonic acid chloride or by reacting alkali metal derivatives of compounds II with acyl sulphonic acid esters of halogen cyclohexanols or with non-germinal dihalogen cyclohexanes. 10 - (21 - Hydroxycyclohexyl) - phenothiazine is produced also by reacting the sodium salt of phenothiazine with 2 - chlorocyclohexanone and reducing the 10 - (21 - oxocyclohexyl) - phenothiazine.  Phenothiazine carboxylic acids V are prepared by reacting compounds II with phosgene and reacting the 10-chlorocarbonylphenothiazines with an amino cyclohexanol.
Patent GB-959264-A (GB)
Title: Substituted 3,4-dihydroxy-benzoic acid esters
IPC: C07C233/00
Filed: 1962-12-06
Abstract: The invention comprises compounds of the formula: <FORM:0959264/C2/1> (wherein R is alkyl or alkenyl of at most 4 carbon atoms, R1 is methyl or ethyl, R11 is hydrogen, methyl or ethyl, R111 is hydrogen or alkyl of at most 4 carbon atoms and R1111 is alkyl or alkoxy of at most 4 carbon atoms, or R111 and R1111 together with the nitrogen atom can form a saturated hererocyclic radical which may contain a further hetero atom) and their preparation by (1) reacting a compound of the formula: <FORM:0959264/C2/2> (wherein X is a reactive group such as a halogen atom or an alkyl- or aryl-sulphonyl group) with the appropriate 3-alkoxy-4-hydroxy-benzoic acid ester; or (2) reacting a 3-alkoxy-4-(a -carboxyalkoxy)-benzoic acid ester or a reactive functional derivative thereof with the appropriate amine NHR111R1111 or a reactive derivative thereof; or (3) reacting an acid of the formula: <FORM:0959264/C2/3> or a reactive derivative thereof with the appropriate alcohol ROH or a reactive ester thereof such as a halide. Examples are given.  Chloroacetic acid-N-ethoxy-N-ethylamide is prepared from a -chloroacetyl chloride and N,O-diethyl-hydroxylamine.  3-Methoxy-4-carbomethoxy-benzoic acid n-propyl ester is prepared from vanillic acid n-propyl ester and sodium chloroacetate. 3-Methoxy-4-(N,N-diethylcarbamidomethoxy)-benzoic acid is prepared by saponification of the methyl ester.
Patent GB-1278098-A (GB)
Title: A gutter for diverting or draining liquids
IPC: E21F16/00
Filed: 1969-09-19
Abstract: 1278098 Tunnels &c SPRIBAG AG 19 Sept 1969 [26 Sept 1968] 46338/69 Heading E1F A gutter for draining tunnels comprises a strip 2 having at least one reinforcement 1 allowing the gutter to be deformed to take up irregularities in the tunnel wall while maintaining the cross sectional shape unchanged. The reinforcement is polyvinyl chloride covered steel wire and is welded or bonded to the sheet which is also polyvinylchloride. A single zig-zag wire or a number of transversely extending wires may be used. A flexible marginal strip 3 serves for securing the gutter to a tunnel wall. In use, a rapid hardening sealing layer is applied to the wall to close up the smaller leaks. The gutter is secured to the sealing layer over the larger leaks by an adhesive or bonding agent and leads to a drainage canal on the tunnel floor. After draining, a further cement or mortar layer is applied to embed and cover the gutter.
Patent GB-1321860-A (GB)
Title: Floating flexible skimming devices
IPC: E02B15/10
Filed: 1970-09-29
Abstract: 1321860 Removing floating oil from water M F SMITH 29 Sept 1970 [20 Oct 1969] 46372/70 Heading B1D A floating skimming head for removing oil from the sea comprises upper and lower sheets of foamed and non-foamed nitrile rubber which are sufficiently flexible to conform to the waves, so that an elongated intake opening 55 defined between their semi-circular edges is always in a position to take in oil with a minimum of water. In Fig. 5, the upper sheet 30 extends radially outwards of the lower, but in other versions the sheets are of equal radius or the lower sheet extends beyond the upper (Fig. 8, not shown). The diametral edges of the sheets are joined, and the sheets clamped to upper and lower plates (22, 24) of an outlet plenum (Fig. 2, not shown) connected by floatsupported conduit 60 to a diaphragm suction pump and separator (Fig. 3). The sheets are spaced by foamed rubber spacers 49, defining a grating which excludes twigs &c, and the upper sheet may carry lead weights 50, removable to enable the head to float higher in the water (Fig. 10, not shown) if the oil layer is thin following skimming in the Fig. 5 position.
Patent GB-1410322-A (GB)
Title: Method and apparatus for the location of a source of electro magnetic radiation
IPC: G01S3/789
Filed: 1970-09-29
Abstract: 1410322 Direction finders FRANCE ARMED FORCES MINISTER OF 29 Sept 1970 46376/70 Heading H4D Apparatus for determining the azimuth and elevation angles of an electromagnetic radiation source, e.g. a nuclear explosion, comprises, Fig. 1, an encoder disc 1 of glass rotated by a motor 2 at a speed, e.g. 10 revolutions per sec., such that the period of rotation is less than the duration of the luminous source i to be detected. The disc 1 has two circular engraved tracks 4, 5, track 4 having a large number N of regularly spaced divisions and track 5 having a single engraved line, this line being radially aligned with one of the lines forming track 4. The tracks 4, 5 are read by a reader 6 comprising photo-diodes to produce pulses on conductors 8, 7 respectively. Thus, each division on track 4 produces a pulse a and the single division on track 5 produces a pulse b, these pulses being applied to an electronic logic system 17. An optical system 9 for receiving the luminous source i is rotated with the disc 1 and comprises an objective 11 which focuses the luminous flux on to two non-parallel slits 12, 13 formed in a plate 14, slit 12 being the "azimuth" slit and slit 13 the "elevation" slit. A photo-electric detector 15, preferably a vacuum cell having a photo-emissive cathode, responds successively to the beams of luminous flux passing the slits 12, 13 to produce, respectively a pair of pulses C1, C2 for each revolution of the disc 1, these pulses also being fed to the logic system 17. Pulse b provides a datum pulse and the system 17 determines the azimuth angle by counting the number of pulses a over the time period g extending to the commencement of pulse C1. The elevation angle is determined by counting the number of pulses a over the time period S between the pulses C1, C2. This is because, as shown in Fig. 3, the image i moves along a horizontal line x across the slits 12, 13 and as the elevation angle increases the traverse line moves from x2 to x1 and the interval S between the pulses C1, C2 correspondingly increases. The angular diameter of the source i may be determined by counting the pulses a over the period d corresponding to the width of pulse C1. An actual embodiment of the encoder 1 and optical system 9 is described with reference to Fig. 2 (not shown). The logic system 17 is described in detail with reference to Fig. 4 (not shown) and a modified logic system for detecting two luminous sources per revolution of the encoder 1 is described with reference to Fig. 5 (not shown). The slits 12, 13 may have alternative shapes as shown in Figs. 7-10. According to another modification (Fig. 11, not shown) the slits 12, 13 are formed by two bundles of light guides.
Patent GB-1373046-A (GB)
Title: Auxiliary drive system for combines
IPC: B60K17/10
Filed: 1972-10-09
Abstract: 1373046 Hydrostatic transmission control DEERE & CO 9 Oct 1972 [12 Oct 1971] 46497/72 Headings F2D and F2W In a hydrostatic transmission for a combined harvester wherein a variable displacement pump 28 is in closed circuit with three motors 30, 68, 70 connected in parallel and the motor 30 drives main driving wheels whilst the motors 68, 70 provide an auxiliary drive to steerable wheels 14R, 14L, flow control valves 112 are provided in the lines 84 ... 90 to the motors 68, 70 to limit flow to the motor 68 or 70 when the associated wheel 14R or 14L slips and thereby to prevent power loss to the main motor 30. Each auxiliary motor is connected to its associated wheel through a friction clutch 74 which is engaged by the pressure liquid supplied to the motor. A valve 82 selectively connects the auxiliary motors 68, 70 to the pump 28. The valve 82 is biased by a spring 116 to the position shown in which the auxiliary motor lines 84 ... 90 are connected to a reservoir 50 and the pump 28 drives the motor 30 alone. Actuation of a solenoid controlled valve 106 supplies pressure liquid from a make-up pump 40 to a servo 102 which changes over the valve 82 to connect the auxiliary motors to the pump 28. The pump 40 supplies make-up liquid to the circuit through one-way valves 46. High pressure relief valves 60, 62 are provided.
Patent GB-1505854-A (GB)
Title: Internal combustion engine
IPC: F02M31/14
Filed: 1975-11-11
Abstract: 1505854 IC engine pre-combustion chambers TOYOTA JIDOSHA KOGYO KK 11 Nov 1975 [13 Nov 1974] 46614/75 Heading F1B An I.C. engine comprises a main combustion chamber 20 in a cylinder head 21, an air/fuel mixture induction passage 23 controlled by an inlet valve 22, an auxiliary combustion chamber 25 in the cylinder head and connected to the main combustion chamber by an unvalved auxiliary inlet port 26 directed towards the main inlet port 24 and an unvalved auxiliary outlet port 28 and a spark-plug 29 in the auxiliary chamber 25, the auxiliary combustion chamber being a cavity formed in the cylinder head during the casting thereof, the wall of the cavity being integral with the material of the cylinder head and said auxiliary port(s) comprise a tubular insert fitted to the material of the cylinder head for protecting the latter. The wall portion common to the main and auxiliary combustion chambers extends outwardly so that port 26 is directed towards main inlet port 24. A weak air/fuel mixture is supplied through passage 23 and a richer mixture through a pipe 30. The richer mixture is deflected by the back of valve 22 towards port 26. The head 21 is made of aluminium or aluminium alloy and stainless steel or ceramic liners are provided in ports 26 and 28 to provide protection against erosion and heat corrosion. A projection 33 directs the incoming mixture towards spark-plug 29.
Patent GB-1318480-A (GB)
Title: Acoustic receiver
IPC: G01S5/28
Filed: 1971-10-07
Abstract: 1318480 Acoustic range and bearing measurement AMF Inc 7 Oct 1971 [22 Dec 1970] 46725/71 Heading H4D A ship maintained system has means for transmitting an interrogating command to an underwater transponder, receives the transponder response while discriminating against noise and computes and displays the bearing and range of the transponder. Generator 50 which may be push-button operated or a multivibrator including a unijunction transistor triggers a monostable 51 which resets range counter RC to zero, resets bi-stable 58 through OR gate 57 and triggers monostables 53 and 56. Monostable 53 blanks the validating circuit RV for a short period. Monostable 56 represents the turn-around time at the transponder and its trailing edge sets bi-stable 58 which opens gate 59 to start the range counter RC. A valid reply signal from decoder 28 resets bi-stable 58 through OR gate 57 stopping the counter. The bearing measurement is performed by three hydrophones 11-13 which are arranged in perpendicular pairs 11, 12 and 12, 13. The signals from hydrophones 11, 12 after filtering and limiting respectively set and reset bi-stable 41, whose output is thus a square wave whose duty cycle is bearing dependent but 180 degrees ambiguous. The duty cycle is detected and displayed or meter BM which has a centre zero and 180 degrees sector. The signals from hydrophones 12, 13 similarly produce a square wave whose duty cycle is detected as being above or below a predetermined level. According to the result and bow or stern indicator lamp BL, SL is lighted resolving the bearing ambiguity. The incoming signal is also passed to validating system RV which detects whether the signal is of the correct frequency, amplitude and duration. Valid signals produce a range and bearing measurement and sound alarm AA. Invalid signals inhibit the bearing measurement and produce no range measurement.
Patent GB-1129112-A (GB)
Title: Thermoplastic compositions
Inventor: HAMARD PIERRE
IPC: C08J7/00
Filed: 1965-11-05
Abstract: 1,129,112. Finely divided solid/thermoplastic polymer compositions. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. 5 Nov., 1965 [5 Nov., 1964], No. 47068/65. Headings C3C, C3F and C3P. [Also in Division H1] A thermoplastic polymer which is solid at 20 C. and which contains at least 50% by weight of a plasticizer is mixed with a finely divided metal or alloy or oxide thereof which is insoluble in the polymer, the mixture is shaped, at least 90% of the plasticizer is extracted with a solvent, which is a non-solvent for the polymer, and the product is dried. The polymer may be polyvinyl chloride, polystyrene, polymethyl methacrylate or cellulose acetate. The plasticizer may be di-octyl phthalate or dibutyl phthalate and starch. The finely divided metal &c., e.g. of size less than 10Á, may be nickel, silver or a nickel-aluminium alloy. The solvent may be ether followed by water, carbon tetrachloride or methyl alcohol. The composition may be formed into a sheet which may then be treated with an aq. solution of potassium hydroxide or reduced with hydrogen.
Patent GB-1065178-A (GB)
Title: An improved process and apparatus for extractive distillation
IPC: B01D3/40
Filed: 1963-11-29
Abstract: 1,065,178. Extractive distillation. FARBENFABRIKEN BAYER A.G. Nov. 29, 1963 [Dec. 1, 1962], No. 47308/63. Heading BIB. Extractive distillation is carried out in distillation column 1 the base of which is connected by pipe 11 to a series of evaporators 25, 26, 27 and the vapours, formed by partial evaporation of the sump liquid from the column in the evaporators, are conducted into the base of column 1 through pipes 13, 14, 15, 33. The liquid mixture to be fractionated is fed to the column in the vapour state through pine 7, and the extraction liquid is supplied to the top section of the column through pipe 5. The more volatile components of the feed mixture are withdrawn from the head of column 1, and vapours of the less volatile components are withdrawn from the lower section of the column through pipe 31. The sump liquid leaves column 1 at a relatively low temperature, i.e. at a temperature which is higher than the temperature at the head of the column by only the amount corresponding to the pressuregradient in the column. The liquid flowing out of evaporator 27 enters column 36 where further quantities of the less volatile components of the feed mixture are vaporized. and are conducted into the lower section of the main column. The base of column 36 is connected to a series of evaporators 28, 29, 30. The liquid which flows out of evaporator 30 enters column 16, the sump liquid of which is heated by evaporator 17. The overhead vapours from column 16 are introduced into the lower section of column 36. The extraction liquid withdrawn from the base of column 16 is pumped through the heating-coils of evaporators 30, 29, 28. 27, 26, 25 and next through the heating-coil of the vaporizer 22 for the feed-mixture; the extraction liquid then flows through cooler 23 and is returned to the top section of the main column 1.
Patent GB-1423620-A (GB)
Title: Photosensitive compositions
IPC: G03C5/56
Filed: 1973-10-10
Abstract: 1423620 Photo-sensitive compositions HORIZONS RESEARCH Inc 10 Oct 1973 [10 Oct 1972] 47403/73 Heading G2C A photo-sensitive point out composition comprises (a) a colour-forming compound which is a leuco, styryl, cyanine, merocyamine dye base, a dihydroapthracene, an amine of Formula R-NXY wherein R is an unsubstituted or substitued phenyl, naphthyl or anthracyl radial, X and Y are H, halogen, alkyl, aryl or aralkyl or compounds of Formula wherein R 1  and R 2  are -2-NBC where Z is phenylene diphenylene or naphthylene and B and C are hydrogen or alkyl and R 3  and R 4  are H, alkyl or aryl (b) an activator which on exposure causes (a) to change colour and which is an organic halogen with at least 3 halogen atoms attached to 1 C atom, an organic sulphonyl or sulphenyl chloride or a compound of Formula R 9 -SH or R 9 -S-S-R 9  wherein R 9  is a carbo- or hetero-cyclic ring which may be fused or substituted and (c) a sensitizer and stabilizer of one of the Formula: wherein R 5 , R 6  and R 2  are H, aryl or substituted aryl; at least one being aryl and R 8  is H, alkyl, aryl, aralkyl or substituted aryl. A binder is generally added to the composition 1 e.g. vinyl and acrylic polymers, polycarbonates or polyphenylene oxides) which is then coated on to a support, imagewise exposed to produce a coloured image which is fixed by heating or solvent wash. Component (c) renders the composition more stable in storage than the composition disclosed in Specifications 1175733, 1192470 and 1264193.