baber/WOPTO huggingface dataset:
Patent GB-1277511-A (GB)
Title: Battery apparatus
Inventor: FREZZOLINI JAMES
IPC: H02J7/02
Filed: 1969-08-29
Abstract: 1277511 Charging batteries; selection of supply sources; converting J FREZZOLINI and J J CRAWFORD 29 Aug 1969 [21 Jan 1969] 43211/69 Headings H2F and H2H A battery B is charged from a mains supply 84 through a transformer T1 and full wave rectifier 24 under the control of a silicon controlled rectifier 20 whose firing angle is automatically varied by a control circuit which compares the battery terminal voltage with a reference voltage, the arrangement being such that the firing angle is progressively retarded as the battery voltage increases until the charging current is completely cut off when a predetermined battery voltage is reached. The reference voltage is provided by a differential amplifier 42 whose output is applied to the anode of a diode 54 and whose input terminals 40, 44 are respectively supplied with a constant voltage from circuit 36, 38 and with a voltage from one or other of two potentiometers 48, 50 adjustable according to the rating of the battery to be charged. The diode 54 also receives the battery terminal voltage at its cathode and the comparison between this voltage and the reference voltage determines the instant in each half wave of the rectifier 24 at which the SCR20 is fired, until the battery voltage reaches a value permanently above the voltage at point 52 to terminate the charge. Further feedback paths are provided by the potentiometer in use and by the resistors 28, 30 which cause the amplifier 42 to limit the charging current under short circuit conditions. By operation of a multiple deck wafer switch 18 the battery supplies an inverter comprising a fixed or variable frequency oscillator 86, a transformer T2 and transistors 102, 104, the inverter output being supplied to terminals 66, 68 through the transformer T1. If the oscillator 86 is not of fixed frequency (e.g. crystal controlled), the frequency can be adjusted by a variable capacitor 87 to that of the mains supply 84 by comparison of the latter with the inverter output across a lamp 132. Energization of the inverter is dependent on the connection between its output and the load supplied, so that de-energization of the latter automatically de-energizes the inverter. A cable connector to achieve this is described, Fig. 2 (not shown).
Patent GB-1386182-A (GB)
Title: Control of dust during handling of bulk solid materials
IPC: B65G69/18
Filed: 1972-09-19
Abstract: 1386182 Confining dust &c generated in industrial processes IMPERIAL CHEMICAL INDUSTRIES Ltd 6 Sept 1973 [19 Sept 1972] 43285/72 Heading F4X Apparatus for confining and removing dust generated when bulk solid material is loaded into containers, e.g. ships' holds, by gravity through a shoot 3 comprises a base plate 1 having an upstanding hollow pipe 2a adapted to engage the lower end of a telescopic loading shoot 3, 3a; a plurality of openings 7 surrounding the pipe 2a; a flared skirt depending from the base plate and adapted to cover the heap of material discharged from the shoot, the skirt consisting of one or more rows of overlapping strips 4 and 6 of flexible material; and a tubular cover in the form of a variable length bellows 8 which surrounds the openings 7 and encloses the whole of the shoot 3, 3a to define therewith an annular duct 9 through which dust laden air from the openings 7 can escape upwardly. The dustladen air from duct 9 is fed to a dust separation system (see Fig. 3, not shown) comprising a plurality of cyclone separators (10) and a Venturi scrubber (13).
Patent GB-965474-A (GB)
Title: Esters of di-isocyanate carboxylic acids
IPC: C08G18/77
Filed: 1961-12-04
Abstract: The invention comprises esters of di-isocyanato carboxylic acids having the general formula: <FORM:0965474/C1/1> where R is an unsubstituted or halogenated alkyl, aryl, alkaryl or aralkyl group, R* is a hydrogen atom or the radical -CO2Y, where Y is an unsubstituted or halogenated alkyl, aryl, alkaryl or aralkyl group, and R11 is a C1-8 alkylene radical.  These compounds may be produced by reacting the corresponding diamino carboxylic acid ester or the acid-addition salt of such a compound, with phosgene in the presence of a suitable solvent. A preferred method uses the dihydrochloride salt of the diamino carboxylic acid ester.  The temperature of the reaction is maintained within the range of 50-200 DEG C., depending on the ester used. Solvents mentioned as suitable for the reaction are chlorobenzene, orthodichlorobenzene, bromotoluene, chlorotoluene, 4-chloro-1,3-xylene, benzene, toluene, dioxane, and dialkyl ethers of glycols and polyether glycols. Examples are given, illustrating the preparation of the following compounds: 2,6-diisocyanato methyl caproate, 2,6-di-isocyanato ethyl caproate, 2,6-di-isocyanato propyl caproate, 2,6-di-isocyanato butyl caproate, 2,6-di-isocyanato octyl caproate, 2,6-di-isocyanato benzyl caproate, 2,5-di-isocyanato methyl valerate, 1,5-dicarbo-methoxy-1,5-di-isocyanato pentane, 1,8-dicarbethoxy-1,8-di-isocyanato octane, and 2,6-di-isocyanato stearyl caproate. Also specified are the phenyl, o-tolyl, 2-chloro-5-methylphenyl, 2,3-dichloropropyl and isopropyl esters of 2,6-di-isocyanato caproic acid and 2,6-di-isocyanato valeric acid; the ethyl, propyl, butyl, octyl, stearyl, 2-chloropropyl, and benzyl esters of 2,6-di-isocyanato valeric acid; the 1,2-dichloropropyl ester of 2,6-di-isocyanato caproic acid; the dimethyl, diethyl, dipropyl, dibutyl, dioctyl, distearyl, diphenyl, dibenzyl, di (o-tolyl), di (2-chloro-5-methylphenyl), di (2-chloropropyl), di (2,3-chloropropyl), and di-isopropyl diesters of 2,6-di-isocyanato pimelic acid and of 2,9-di-isocyanato sebacic acid; and the methyl-propyl diesters, phenyl-octyl diesters, and benzyl-stearyl diesters of 2,6-di-isocyanato pimelic acid and of 2,9-di-isocyanato sebacic acid. The preparation of esters of diamino carboxylic acids used as the starting material is described.ALSO:Esters of di-isocyanato carboxylic acids, having the general formula: <FORM:0965474/C3/1> where R is an unsubstituted or halogenated alkyl, aryl, alkaryl or aralkyl group, R* is a hydrogen atom or the radical -CO2Y, where Y is an unsubstituted or halogenated alkyl, aryl, alkaryl or aralkyl group, and R11 is a C1-8 alkylene radical, are employed as intermediates for the manufacture of polymers such as polyurethanes which may be obtained in the form of foams, adhesives, elastomers, films and moulded objects.  Polymers may be produced by the reaction of these compounds with polyols, polyamines or polycarboxylic acids. Thus clear, colourless, elastic polymers are produced by reacting these di-isocyanate compounds with glycols in the presence of a catalyst such as dibutyl tin dilaurate.
Patent GB-1287049-A (GB)
Title: Production of propylene polymers
Inventor: KONOTSUNE SHIRO
IPC: C08F10/00
Filed: 1970-09-10
Abstract: 1287049 Propylene polymerization CHISSO CORP 10 Sept 1970 43391/70 Heading C3P Propylene, optionally mixed with other α- olefins as comonomers, is polymerized in the liquid phase at a temperature below 80 C. substantially in the absence of any solvent, using a catalyst comprising (i) TiCl 3  or TiCl 3 .1/3 AlCl 3  (ii) R 2 AlR<SP>1</SP> where R is C 1 -C 4  alkyl and R<SP>1</SP> is C 1 -C 4  alkyl or Cl or Br and (iii) a polyethyleneglycol ether or thio analogue thereof of formula R<SP>2</SP>-X-(CH 2 CH 2 X) n -R<SP>3</SP> where X is O or S, each of R<SP>2</SP> and R<SP>3</SP> is alkyl, aryl, aralkyl or cycloalkyl and n is an integer, preferably 2-5. A small amount of solvent may be used to slurry the catalyst. The catalyst is removed by treatment with an alcohol, preferably mixed with a hydrocarbon. The products have an atactic content below 4À5% and can be used satisfactorily, e.g. for moulding, without removing this. The examples describe the preparation of propylene homopolymers and an ethylene-propylene copolymer.
Patent GB-1071625-A (GB)
Title: Improved machine tool
IPC: B23C3/32
Filed: 1964-10-23
Abstract: 1,071,625. Lathes; milling machines; beds and frames. COMMISSARIAT A L'ENERGIE ATOMIQUE. Oct. 23, 1964 [Nov. 19, 1963], No. 43426/64. Headings B3B, B3K and B3T A machine tool comprising in combination a lathe and a milling-machine constituted by a main frame 1 having a work-table 2 mounted thereon for movement in a vertical plane and comprising a fixed head-stock 3 and a movable tail-stock 4. The main frame 1 has two identical lateral shoulders 5, each constituting slides for an auxiliary frame 6 which is movable in a horizontal plane perpendicular to the worktable 2. Attached to the frame 6 are orientable rectangular tables 7 movable in the vertical plane about a horizontal axis on an annular slide 8. A rectilinear slide 9 attached to the table 7 forms a guide for a tool-mounting carriage 10 to which is pivotally attached a tool plate 11 which is always located in a vertical position whatever the inclination of table 7 and carriage 10. The plate 11 constitutes a support for a plurality of milling cutters 12 which are angularly adjustable. The head-stock 3 is provided with workdriving spindles 25a and 25b driven via a gear transmission by a motor 37, which includes means for indexing the workpieces if required. The lower ends of the workpieces are supported and located on the tail-stock 4 by centres 43 and 43b. The movement of the frame 6, table 7 and carriage 10 are hydraulically operated from a pump 13, the frame 6 and carriage 10 being actuated by a tracer 20b and template 20a. The vertical movement of the work-table 2 is controlled by a motor 22 fixed to the frame 1 and by means of a screw 23 extending from the head-stock 3. The machine facilitates the machining of rectilinear or spiral grooves in workpieces of various cross-sectional shapes.
Patent GB-1281867-A (GB)
Title: Base stock material for labels
Inventor: WHEELER SETH
IPC: C09J7/21
Filed: 1970-09-10
Abstract: 1281867 Pressure-sensitive adhesive coated materials LITTON BUSINESS SYSTEMS Inc 10 Sept 1970 [10 Sept 1969] 43433/70 Heading B2E A material for labels, tapes, stickers and posters comprises a substrate and a watersoluble, pressure-sensitive adhesive between which is sandwiched a water-insoluble barrier layer having a melting point above 90F. The substrate may comprise cloth or paper. The barrier layer may comprise polystyrene, hydrogenated rosin ester, terpene resins, polyvinyl acetate, animal, mineral, vegetable and synthetic waxes and wax blends especially shellac wax and a wax blend containing polymerisation products of unsaturates derived from the deep cracking of petroleum. The barrier coat may be applied as a solution by reverse roll, doctor blade, knife, gravure coating. The exposed surface of the water-soluble pressure sensitive adhesive may be protected by a release sheet comprising a substrate having a release coating thereon. The labels are removable by subjecting to a high temperature bath or spray.
Patent GB-941721-A (GB)
Title: Improvements in apparatus for recording electric signals
IPC: G11B7/13
Filed: 1959-12-22
Abstract: 941,721. Television. GENERAL ELECTRIC CO. Dec. 22, 1959 [Dec. 24, 1958], No. 43475/59. Heading H4F. [Also in Division G5] Electric charges in accordance with signals from a source 3 are applied to the thermoplastic surface of a recording medium 1 by means of a conductor 10 (preferably flexible) which is supported and traversed with respect to the medium in the manner shown by means of a motor-driven shaft 12, the medium being heated to a plastic condition to permit the charges to deform the surface. Conductor 10 may apply the charges by direct contact with the medium or may be spaced from the medium and transfer the charges by air ionization. In the former case, the medium is heated to render its upper surface plastic after the charges are deposited, for example by a heater element 27 in contact with the under surface which is in the form of a separate base 6 having a higher melting temperature. The surface deformations are preserved by subsequent cooling by an element 29 through which is passed a cool liquid or gas. As an alternative, the medium may be heated by radiation from above and cooled by diffusion to the base 6. A conducting plate is placed beneath the medium or a conducting layer is incorporated in the medium to attract the charges. The medium moves in the direction of arrow 5 and the recording is in the form of a succession of transverse lines. Reference is made to recording computer, audio and video signals. In recording video signals, the recording takes the form of a phase-type diffraction grating in which the depth is determined by the magnitude of the charges and hence the original signal, and in which the grating spacing is determined by the frequency of an oscillation on which the original signal is amplitude modulated. The recording is read out by optical means. An arrangement for recording colour video signals is described with reference to Fig. 5 (not shown). The motor-driven shaft supports a plurality of conductors 10 which traverse the medium in succession at line rate, one engaging one side of the medium as the preceding one leaves the other, whereby in conjunction with movement of the medium at frame rate there is laid down a recording in accordance with a conventional television scanning raster. The colour signals, either three in number corresponding respectively to the red, green and blue component colours, or two in number corresponding to one fixed and one variable primary colour, modulate oscillations of appropriate frequencies to produce the correct grating spacings and are applied simultaneously to the conductors.
Patent GB-1499652-A (GB)
Title: Oscillating or reciprocating motor mechanism
IPC: H02K41/03
Filed: 1974-12-17
Abstract: 1499652 Dynamo-electric machines TOOLMASTERS Ltd 17 Dec 1974 [17 Sept 1973] 43583/73 Heading H2A A mechanism for producing reciprocating or oscillating movement between limits includes a single phase A.C. synchronous motor 109 and a pair of stops 102, 103 positioned in the path of movement of an abutment or abutments 104, 105 carried by the moving member of the motor or by a part driven by the moving member so that the abutment or abutments strike the stops at the limits of the movement and the moving member of the motor is thrown into reverse either the stops or the abutments being resilient. The abutments 104, 105 are of spring steel and are fixed to the threaded spindle 101 of the motor rotor. The threaded slide 110 reciprocates along guide rods 106, 107, the length of the stroke being determined by the positions of bolts 102, 103 which serve as the stops. In a modification, Figs. 12, 13 (not shown) there is only one guide rod (316) engageable in an arcuate slot (317) in the slide to permit limited angular movement of the slide at the moment of reversal of the motor rotor. In a further modification, Figs. 10, 11 (not shown) the rotor shaft carries a resilient abutment (204) engageable with two cams (212, 213) mounted on a low speed shaft in a gear train driven by the rotor, the cams forming the stops and being angularly adjustable relative to one another. The synchronous motor is a planar air gap motor having two stators disposed on opposite axial sides of a discoidal permanent magnet rotor. In a modification, Figs. 14, 15 (not shown) the motor is a linear motor.
Patent GB-993347-A (GB)
Title: Solid state scanning circuits
IPC: H04N3/18
Filed: 1963-11-05
Abstract: 993,347. Converting. WESTINGHOUSE ELECTRIC CORPORATION. Nov. 5, 1963 [Nov. 20, 1962], No. 43622/63. Heading H2F. [Also in Division H3] In a line time base circuit, which may also generate an E.H.T. voltage, the stroke current is generated by periodically connecting the deflection coils across a D.C. supply through a switching circuit comprising a rectifier connected in reverse polarity across a semiconductor controlled rectifier so that the two rectifiers conduct alternatively and means energized during the flyback cause the controlled rectifier to be cut-off during the stroke and the other rectifier to become non-conductive at the end of the stroke. At the beginning of the stroke, a gate pulse renders the SCR 14 conductive so that the deflection coil Ly is effectively connected across the steady D.C. supply 10, 11, 12, 13. A previously charged capacitor Cs forming part of a resonant circuit Cs, Ls, tuned in this embodiment to the time base frequency, commences to discharge resonantly through the SCR to maintain it conducting. At the same time the field existing in the deflection coil Ly, being in the reverse sense to the supply, commences to collapse producing a linearly decreasing current in the coil. This current is initially supplied by the resonant circuit Cs, Ls but about midway through the scan, when the deflection field is reversing, the current from the resonant circuit reverses. Accordingly, the SCR switches off but the now increasing currents in the deflection coil and resonant circuit combine to render a diode 15 conducting so that the deflection coil is still converted across the D.C. supply and the change in deflection current remains linear. At the end of the stroke the oscillatory current in the resonant circuit becomes less than the deflection current so that the combined current reverses and the diode becomes non-conductive. The flyback now occurs, during which a half-cycle of oscillation takes place in the circuit comprising the deflection coil Ly and its parallel capacitance so that the current in the coil is rapidly reversed. At the same time capacitor Cs is recharged. The supply terminal 11 may be connected to a tap 20 on coil Ls so that a cosine shaped voltage is added to the voltage across the deflection coils to make the deflection waveform S-shaped. In addition, positive feedback through lead 25 causes the circuit to self oscillate. The circuit Cs, Ls may be tuned to a harmonic frequency so that the current alternates between the controlled and uncontrolled diodes two or more times (Figs. 1 and 2, not shown). In addition, the resonant circuit may be connected across Ly and the capacitor Cy across the diode (Figs. 5, 6 and 7, not shown). An E.H.T. voltage may be derived during the flyback from a transformer and rectifier circuit 21, 23 or from a winding coupled to coil Ls (Fig. 7, not shown).
Patent GB-1430558-A (GB)
Title: Process for producing inosine-5,-monophosphate
IPC: C12R1/15
Filed: 1974-10-08
Abstract: 1430558 Inosine-5<SP>1</SP>-monophosphate; microorganisms AJINOMOTO CO Inc 8 Oct 1974 [12 Oct 1973] 43634/74 Heading C2P Inosine-5<SP>1</SP>-monophosphate is produced by culturing a hypoxanthine-requiring microorganism of the genus Corynebacterium in an aqueous culture medium containing assimilable sources of C and N, inorganic ions, minor organic nutrients necessary for the growth of the microorganism, phosphate ions and ionsine and/or hypoxanthine, until inosine-5<SP>1</SP>-monophosphate accumulates in the culture medium. The microorganism is preferably resistant to 8-azaguanine and may be an artificially induced mutant of Corynebacterium sp. ATCC 21251, morphological details of which are given in U.K. patent Specification No. 1,188,885. Specified suitable mutants are Corynebacterium sp. FERM-P 2310 and FERM-P 2311, which are claimed per se.
Patent GB-1175038-A (GB)
Title: Electromechanical Vibration Generator for Electronic Musical Instruments
IPC: G10H3/20
Filed: 1968-09-13
Abstract: 1,175,038. Electrophonic musical instruments. MATTH. HOHNER A.G. 13 Sept., 1968 [16 Oct., 1967], No. 43705/68. Heading G5J. In an electronic instrument of the pianoforte type wherein a resonant body is struck or plucked by operation of a key on a keyboard, the resonant body includes a transducer and comprises a vibrator, such as tongues 34, Fig. 1, which is clamped to a carrier member 38 connected at a vibration node to an abutment 43 by means of an elastic member 39. In the arrangement shown the vibrator element 34 is loaded at one end by a head 36 and clamped at the other end to the bar-shaped carrier member 38. Excessive length of the member 38 may be avoided by loading the free end with a weight 44 or by bending over the end as shown in outline for carrier member 51. An inductive transducer 46 is located adjacent the free end of the vibrator element, and this may be replaced or supplemented by a capacitive pick-up. In the arrangement shown the elastic connecting member 39 comprises a layer of rubber or elastomeric material secured directly to the carrier 38 by vulcanization or adhesive bonding and to a metal plate 41 bolted to the abutment 43. The abutment 43 may be a divided arrangement with groups of carrier members 38 mounted on separate abutments. Vibrators tuned to different pitches may be clamped at a common point to a carrier member. In a modification, Fig. 2 (not shown), the connecting member comprises two semi-elliptical springs (144, 145) connected at their mid-points to the carrier member (137) and to the abutment (142) and joined at their ends to form an elliptical spring (143). In another arrangement, Fig. 3 (not shown), a semi-elliptical spring (155) is joined at its ends to the carrier member (137) and at its centre to the abutment (140). In a further arrangement, Fig. 4 (not shown), a number of carriers are bolted to an abutment with intervening strips and washers of rubber or elastomeric material. Each vibrator may be provided with a damping cushion 68 which is raised when the corresponding key is operated, and all the damping cushions may be raised by means of a pedal (not shown) which causes rotation of the shaft 60 via members 61-64. Means may be provided for clamping the carrier members when the lid of the instrument is closed, Fig. 2 (not shown).
Patent GB-1531340-A (GB)
Title: Auto emission exhaust catalysts
IPC: B01J23/44
Filed: 1976-10-21
Abstract: 1531340 Exhaust gas oxidation catalyst TOYOTA JIDOSHA KOGYO KK 21 Oct 1976 [23 Oct 1975] 43810/76 Heading B1E An auto emission purification catalyst comprises palladium supported on a carrier composed mainly of α-alumina having a total pore volume of 0.05-0.50 cc/g and an average pore diameter of 0.05-5.0Á. The catalyst may contain a suter-promoting agent, e.g. SiO 2 , TiO 2 , ZrO 2 , CaO, MgO, B 2 O 3 , MnO 2 , Cr 2 O 3  or CuO. The α-alumina carrier may be prepared by crushing α-alumina and an aluminium compound yielding α-alumina on firing, mixing a sinter-promoting agent and a binding agent with the crushed mixture, forming a slurry and moulding at the desired shape and sintering at 1100-1500C.