baber/WOPTO huggingface dataset:
Patent GB-1196648-A (GB)
Title: Moenomycin Components and Process for Obtaining Them
IPC: C07G11/00
Filed: 1967-10-02
Abstract: 1,196,648. Moenomycin components. FARBWERKE HOECHST A.G. 2 Oct., 1967 [1 Oct., 1966], No. 44732/67. Heading C2A. Moenomycin components D, E and F are isolated from moenomycin B 1  and moenomycin components G and H are isolated from moenomycin B 2 , by subjecting moenomycin B 1  or B 2  to either (a) partition chromatography on silica gel using a mixture of chloroform, one or more C 1  to alkanols and water (40 : 70 : 20) or alcohol/water/borate buffer of pH 9À0 (70 : 25 : 5) as developing agent, or (b) adsorption chromatography on a strongly basic polystyrene anion exchange resin using a solution of potassium chloride in aqueous methanol as elution medium. Selected bands in the case of (a) are extracted with methanol, the solvent removed, the residue dissolved in methanol, made alkaline with ammoniacal methanol and the ammonium salt of the component precipitated with ether. As regards (b), selected fractions are evaporated to remove the methanol and dialysed to remove the potassium chloride from the residual aqueous solution. The inner dialysate is freeze dried, dissolved in methanol and the potassium salt precipitated by the addition of ether. The components D, E, F, G and H are colourless, amorphous, weak acids, soluble in water and polar organic solvents, forming salts with alkali metals and alkaline earth metals and further characterized as follows:- The Rf values are determined in thin layer chromatography on silica gel using chloroform/ ethanol/water 40 : 70 : 20 (I) and isopropanol/water/borate buffer pH9 70 : 25 : 5 (II). Specifications 977,327, 1,068,639 and 1,126,196 are referred to.
Patent GB-1479270-A (GB)
Title: Crop collecting apparatus
Inventor: DELFOSSE GILBERT
IPC: A01D61/02
Filed: 1973-07-25
Abstract: 1479270 Crop collecting apparatus for a harvester MASSEY-FERGUSON SA 27 June 1974 [25 July 1973] 44788/75 Divided out of 1479269 Heading A1F The subject matter of the present Specification is identical with that of the parent Specification but the claims are directed to the angular up and down movement of the cutter bar 24 and the endless belttype conveyor 30 relative to the platform 22.
Patent GB-1528378-A (GB)
Title: Ignition systems for internal combustion engines
IPC: F02P3/04
Filed: 1975-10-30
Abstract: 1528378 Ignition systems ROBERT BOSCH GmbH 30 Oct 1975 [2 Nov 1974] 44819/75 Heading F1B An ignition system for an internal combustion engine comprises an ignition coil 6 having a primary winding 5 located in an electrical circuit which is interruptable by a switch 7 at the instant of ignition, the electrical circuit being of variable inductance which is arranged to assume a maximum value greater than that of the primary winding alone when the first half wave of a damped oscillatory voltage in the secondary winding 18 of the coil approaches its peak value, this maximum inductance being composed of the combination of the inductance of the primary winding 5 and the inductance of an induction coil 20 connected in series with the primary winding and with the switch 7. The switch 7 may be a mechanically operated circuit breaker as shown which is actuable by a cam 15 rotatable by the engine and a second switch 21 connectible in parallel with the induction coil 20 may also be actuable by the cam 15. Alternatively the mechanically operated switches may be replaced by transistors. The induction coil 20 may be in the form of a saturable inductance and may comprise a ferrite core. The system may comprise an optical signal generator.
Patent GB-1367325-A (GB)
Title: Negative resistance semiconductor element
IPC: H01L29/51
Filed: 1971-09-28
Abstract: 1367325 Semi-conductor devices MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 28 Sept 1971 [9 Oct 1970] 45080/71 Heading H1K A thyristor is provided with a gate electrode 8 capacitively coupled to the semi-conductor body through an insulating layer 7 which contains charge trapping centres, whereby an input gate signal applied to the gate electrode 8 is memorized due to the influence of charges injected into the layer 7 and trapped therein in the presence of the input signal on the subsequent electrical characteristics of the thyristor in the absence of the input signal. The Si device shown includes B-diffused regions 2, 3 in an N- type substrate 1, and a P-diffused region 5 in the region 3. The SiO 2  gate insulation 7 contains Au diffused therein to provide the trapping centres, alternative impurities being Cu, Na, Fe and Ni. Lattice defects generated by irradiation or by controlling the growth conditions of the layer 7 may also provide the trapping centres. Al electrodes 4, 6, 8 complete the device. A GaAs light-emitting memory thyristor employing the same charge-trapping principle is also described. This device comprises P- and N- type layers formed by liquid growth techniques and has two similar capacitive gate electrodes situated in recesses in the semi-conductor body so as to span the thickness of one of the intermediate layers of the device. GaP, Ge, GaPAs, InAs and CdS are also mentioned. Reference has been directed by the Comptroller to Specification 1,055,682.
Patent GB-1244833-A (GB)
Title: Improvements in and relating to reflective signs and other surfaces and the production thereof
Inventor: ANSELL ALLEN
IPC: G09F13/04
Filed: 1967-10-05
Abstract: 1,244,833. Reflective coatings. FINAGLAS Ltd. 20 Dec., 1968 [5 Oct., 1967], No. 45434/ 67. Heading B2E. A reflective surface is produced by applying an electrostatic field between a plate 2 on which a supply of optical elements 1 is provided and an opposed plate 3 which bears an adhesive layer 3a or a retaining surface which holds the elements 1 temporarily before transfer to another surface. The optical elements 1 may be glass beads of 0.002-0.008 inches diameter or beads of plastics material. A pulsed voltage may be applied to the plates to produce an intermittent field and suitable circuits for achieving this are described. A traffic sign comprises a zinc coated mild steel plate 25 which is painted on one face with a grey, protective paint 29 and on the other face with white paint 26 which is coated with tacky adhesive 27 onto which glass beads 28 have been deposited.
Patent GB-1091879-A (GB)
Title: Drum or pulley
IPC: E03F9/00
Filed: 1965-11-02
Abstract: 1,091,879. Frames for pulleys. M. C. FROGLEY. Nov. 1, 1966 [Nov. 2, 1965], No. 46409/65. Heading B8B. [Also in Division F2] A pulley 9 guiding a rope 20 in sewer cleaning apparatus is rotatably mounted on a shaft 7 which is horizontally supported for normal operation, but is pivotable about an axis transverse to one of its ends to allow the rope to be removed from the pulley. A screw jack 1 is clamped horizontally between opposite walls of a sewer, claws 2 gripping the walls. An end block 6 on the shaft 7 is pivoted to a collar 5, secured to the jack 1, by a bolt 10, the axis of which is transverse to the shaft 7 and inclined approximately 45 degrees from vertical. A latch 11, housed in the shaft 7 and urged outwardly thereof by a spring 12, engages a bore 14 in a collar 4 on the jack 1 to hold the shaft 7 horizontal, and is retracted by a lever system 15-18 mounted on an end block 8 of the shaft 7 and actuated by a cable 19 or by hydraulic means.
Patent GB-1366436-A (GB)
Title: Filtration
IPC: B01D39/04
Filed: 1972-10-11
Abstract: 1366436 Filter method HYDROMATION FILTER CO 11 Oct 1972 [19 Jan 1972] 46749/72 Heading B1D Particulate contaminants are filtered from a liquid by passage through a filter bed of fragmented shells of black walnuts (Juglans nigra L). Periodically, the bed is cleaned by turbulently backwashing over a perforate element and removing the contaminants through the perforated element. The shells may have a particle size of 20 to 60 U.S. sieve number. The bed of walnut shells may be used in a filter apparatus or method as disclosed in Specifications 1,195,795 and 1,186,774. In the Example, the particulate contaminant is iron oxide.
Patent GB-1113578-A (GB)
Title: Method of producing tertiary phosphines
IPC: C07F9/50
Filed: 1966-10-19
Abstract: Tertiary phosphines R1R2R3P are obtained by reacting in an organic solvent a Grignard compound RMgX with a phosphorus halide PX3, R1PX2 or R1R2PX, wherein R, R1, R2 and R3 which may be the same or different are straight or branched chain alkyl, alkenyl, alkinyl, aralkyl, cycloalkyl, aryl or substituted aryl radicals which radicals may optionally also contain interrupting hetero atoms, e.g. oxygen, and X is Cl, Br or I and which may be the same or different, n mols. of the Grignard compound being reacted per 0.8 to 1.1 mol. of the phosphorus halide where n is the number of halogen atoms in the phosphorus halide molecule bound to P, at a temperature of - 70 DEG to 80 DEG  C., preferably -10 DEG  to 30 DEG  C., and the phosphine being isolated from the reaction mixture either by (1) adding only sufficient water for the water to combine with the resulting magnesium halide to form a granular adduct without forming an aqueous phase, or by (ii) adding water to form an aqueous phase, adding acid and then, after neutralization to a pH of at least 6.0 with a base, e.g. ammonia or a basic amine, separating the phosphine either from the organic phase or from the aqueous phase.  The reaction and working up should normally be carried out under an inert gas such as nitrogen.  Specified solvents for carrying out the reaction are diethyl-, diisopropyl- and dibutyl ethers, tetrahydrofuran, dioxane and aliphatic or aromatic hydrocarbons optionally mixed with an ether or other solvent.  In one form of separation by method (ii) the reaction mixture is mixed suitably at -10 DEG  to 50 DEG  C. with an aqueous acid, e.g. aqueous HCl or NH4Cl, until all the magnesium halide has dissolved, e.g. at pH 1 to 6 and the mixture is then adjusted with a base, e.g. ammonia or a basic amine, to at least pH 6.0. After separation of the aqueous phase the phosphine is recovered from the organic phase by fractional distillation.  If the phosphine is soluble in acid it can be isolated from the aqueous phase, thus aqueous acid is added to the reaction mixture to dissolve the phosphine in the aqueous phase, the aqueous and organic phases are separated and the pH of the aqueous phase is adjusted to at least 6.0, e.g. by adding ammonia, to precipitate the phosphine which is then separated.
Patent GB-1441500-A (GB)
Title: Corrosion resistant coating system for ferrous metal articles  having brazed joints
IPC: C23C10/02
Filed: 1974-10-30
Abstract: 1441500 Electroless plating; halide pack diffusion; modifying metallic surfaces CHROMALLOY AMERICAN CORP 30 Oct 1974 47018/74 Headings C7F and C7U A ferrous article having a joint brazed using an alloy of M.pt. 1125-1925‹F is coated selectively on the braze with Ni, Co, Fe, Ti, Cr, Mn, Mo or V, and the whole article is then aluminized. The ferrous article may contain 5-25 wt per cent Cr, 0-5% W, 0-25% Ni, 0-4 Cu, 0-3 Al and 0-2 Ti; the braze alloy may be based on Cu, Ag, or Au, and may also contain Zn, Ni, Pd, Cd, Sn or Mn. Selective Ni coating is achieved either by application of wax resist to all but the braze, and then Ni plating, or alternatively the ferrous article is passivated by treatment with a CuCl 2  /HgCl 2  / BiCl 3  /HCl/ethanol/water mixture and the braze selectively activated with HNO 3  and/or CrO 3 , followed by electroless Ni plating from a bath containing dimethylamine borane or hypophosphite. Chromium may be applied electrolytically to the brazed joint from a bath of 250-400 g/l Cr03 and 2À5-4 g/l SO 4  =, using current density 10-45 A/dm<SP>2</SP>; the remainder of the article is coated by a wax resist. This technique is also applicable to Co and Fe; MoTi or V are applied from a powder slurry. The Al may be applied by pack aluminization from Al 2 O 3 /Al/AlCl 3  at up to 1000‹F. This may be followed by application of Li, Na, K or ethyl silicate at up to 100‹C, followed by curing at 150-430‹C. A chromate-phosphate coating may then be applied, e.g. from a solution of 5-30% H 3 PO 4 , 3-8% CrO 3  and at least 0À5% of a chromate- and phosphate-forming metal, e.g. Al, Mg, plus surfactant; the coating is then cured. The ferrous article may be a turbine vane/ shroud assembly.
Patent GB-1024857-A (GB)
Title: Improvements in and relating to a rotary pump or expansion engine
Inventor: MOSSIN KAI BORGE
IPC: F04C18/20
Filed: 1962-12-13
Abstract: 1,024,857. Rotary pumps and engines. NOVO TERAPEUTISK LABORATORIUM A/S. Dec. 13, 1962, No. 47116/62. Heading F1F. In a rotary pump or expansion engine having a casing 1, enclosing a working space comprising two parallel intersecting compartments 2, 3 of circular cross-section in which two rotating rotors 9 and 13 are journalled on axes coinciding with the axes of the compartments, the tooth crown b of the single-tooth rotor 9 comprises a peripheral sector having its centre on the axis of the rotor and having a peripheral width, equal to the length of the chord common to compartments 2, 3. As shown, the tooth crowns of rotor 13 comprise diametrically opposed circular-arc-shaped sectors having their centre on the axis of the rotor, while the width of the tooth cross-sectional area narrows towards the centre. Rotor 9 has a first sector a concentric with the rotor axis co-operating with tooth crowns 14 of rotor 13, and a diametrically opposed second sector b also concentric with the rotor axis. Two intermediate convex sectors 11 merge evenly with sectors a and b. Inlet and outlet channels 4 and 7 are provided, a rotary control valve 8 being disposed in outlet 7. Rotor 9 and valve 8 rotate at the same speed which is double the speed of rotor 13.
Patent GB-1347280-A (GB)
Title: Colour synchronizing system for a colour television receiver
IPC: H04N11/16
Filed: 1971-10-11
Abstract: 1347280 Colour television receiver GENERAL CORP 11 Oct 1971 [9 June 1971] 47157/71 Addition to 1340896 Heading H4F In a PAL system colour television receiver, in addition to the R-Y colour signal (whose modulation axis is phase reversed at line frequency) being demodulated using an offset subcarrier of frequency fsc(2N - 1)/2f H  as described in the parent Specification, the B-Y colour signal (whose modulation axis does not undergo phase reversal) is also demodulated using the same offset subcarrier (which is preferably fsc¢f H ). To demodulate the R-Y signal the offset subcarrier is first phase modulated with a sawtooth wave of line frequency f H , and to demodulate the B-Y signal the offset subcarrier is first phase modulated with a sawtooth wave of half line frequency. The offset subcarrier is obtained by extracting and amplifying one of the sidebands of the swinging burst signal (the fixed and swinging components of which may be concurrent or in succession), e.g., by using a sideband amplifier or ringing oscillator including a crystal filter. Alternatively a local oscillator may be employed. The sawtooth wave of half line frequency is formed by deriving pulses having a period equal to double the line period by phase detection of the colour burst signal and the offset subcarrier. These pulses are used to synchronize a relaxation oscillator which feeds a sawtooth wave forming circuit. Any difference in the magnitude of these pulses over successive line periods is used to correct the phase of the offset subcarrier.
Patent GB-1404417-A (GB)
Title: Method and apparatus for producing multiple vacuum skin packages
IPC: B65B11/52
Filed: 1973-10-10
Abstract: 1404417 Packaging W R GRACE & CO 10 Oct 1973 [22 Jan 1973] 47400/73 Heading B8C [Also in Division B5] A method of packaging a plurality of articles 2 comprises placing the articles on a support backing 7, forming a plurality of cavities in a sheet 1 of flexible material, and with the cavities at least partially enclosing the articles applying a differential pressure across the sheet to draw the sheet against the backing 7 and sealing the sheet to the backing. The sheet is held by a vacuum head 3 and is drawn by vacuum against a surface having air port 14 and divided by partitions (20) 21 into cavities. The surface is heated by steam pipes or electric heaters 5. The sheet may be preheated. The head 3 is lowered on to chamber 9 which supports the backing 7 and vacuum is applied to the chamber to draw the sheet against the articles and backing. The space around the articles 2 may be flushed with nitrogen. The sheet may have a heat activatable adhesive, e.g. ethylene vinyl acetate, or the backing 7 may have a pressure sensitive or heat activatable adhesive or be coated with the same material as used in the sheet. The sheet may be of a polyolefin, polyvinylidene chloride, nylon, pvc, or a laminate of these material, and the backing 7 an aluminium sheet, a polystyrene foam, or a gas impervious plastics coated paperboard. The package may be cut into individual packages.
Patent GB-1480601-A (GB)
Title: Railway wagon having a detachable superstructure
IPC: B61D3/00
Filed: 1974-11-01
Abstract: 1480601 Railway wagons; underframes SOC MOBILIERE INDUSTRIELLE 1 Nov 1974 [9 Nov 1973] 47413/74 Heading B7L A railway wagon comprises a superstructure S detachably mounted on two spaced substructures C interconnected by longitudinal rods L slidable in members 1 whereby the length of the underframe is adjustable to a limited extent, the superstructure and substructures having interengaging male and female parts for locating the structures relative to each other and transmitting horizontal forces from the substructures to the superstructure. The rods L are connected by transverse members 3 fastened to the substructures by resilient bushings 4 to accommodate limited adjustment in the spacing between the two substructures. The male and female parts consist of tubes 7 of rectangular cross-section on the substructures receiving correspondingly shaped pins 6 depending from the superstructure. The tubes have flared upper ends receiving the pointed lower ends of the pins to facilitate assembly. The substructures carry spring latches 21 engaging keepers 22 on the superstructure. Actuating levers 38 projecting from each side of the wagon, may be operated to release the associated latch. A two-armed safety lever 43 pivotable about a horizontal pin 44 is spring-loaded to engage the associated actuating lever and prevent inadvertent disengagement of the latch from its its keeper. The male and female parts may comprise interfitting channel and block members, figures 5-7 (not shown), and may have converging walls to facilitate assembly.
Patent GB-1243062-A (GB)
Title: Servicing of wells
Inventor: CHILDERS THOMAS WILSON
IPC: E21B23/08
Filed: 1968-10-07
Abstract: 1,243,062. Wells. ESSO PRODUCTION RESEARCH CO. 7 Oct., 1968 [21 Nov., 1967], No. 47423/68. Heading E1F. In a process of servicing an underwater well 14, fluid is directed down a flow line 34 to the well and down a pipe string 18 therein, then up a second string 19 therein, along a service line 31 to a second well 15 and up the flow line 35 of the well. A tubular extension pipe 53 having a piston 54 may thus be run into well 14. Reverse circulation of the fluid will run the pipe out of the well. Alternatively logging tools and sondes, pumps, or pressure measuring devices may be run into and out of the well. The fluid may be a cement slurry, drilling mud, an oil and water emulsion, a perforating fluid, a hydraulic fracturing liquid, an acid, a solution of a surfactant or a corrosion inhibitor, a resin to consolidate sand, or a clay or bentonite slurry. Well 15 may be serviced instead by appropriate change of valves 32, 33, and 36-39 which may be actuated electrically, hydraulically, pneumatically or acoustically. Flow lines 34, 35 are connected to an installation mounted on the shore, on the sea floor, on a floating vessel, or on submerged buoyancy means.
Patent GB-1372620-A (GB)
Title: Electronic timepieces
IPC: G04G9/08
Filed: 1972-10-16
Abstract: 1372620 Electronic timepieces DAINI SEIKOSHA KK 16 Oct 1972 [19 Oct 1971] 47597/72 Heading G3T A wholly electronic timepiece, e.g. a wrist watch, incorporates, in addition to normal time of day indication, a multi-timer by which a plurality of predetermined times can be pre-set in one operation, without waiting for one pre-set time to be reached before pre-setting the next. An accoustic or optical alarm is operated at the times pre-set. The pre-set times may be fed in by means of a punched card or tape co-operative with photoelectric sensors, Figs. 2, 3, or by operating pushbutton switches to feed a fixed frequency pulsed signal (e.g. at 1Hz) via counters to storage registers, Fig.1 (not shown). As shown, Fig.3, for normal time of day indication there is a known arrangement of a time base oscillator 19 followed by a frequency divider circuit 20, having an output at 1Hz which is fed to secs, mins, hours counters 21, 22, 23 respectively. The outputs of the counters are fed via gates 21c, 22c, 23c to decoders 24, 25, 26 and thence via drivers 27, 28, 29 to operate seconds, minutes and hours display. The display may be liquid crystal or light-emitting diode type. A display element 9 is activated when the display is indicating time of day. In pre-setting the timer, photo-electric elements, e.g. photo-transistors, 70a to 70d, Fig.3, respond respectively to the rows of perforations 63a to 63d, Fig.2, which represent the timer switching signal, and the hour, minute and second signals respectively, Signals from the elements are shaped at 71a to 71d respectively. A switch 15 is closed thereby closing gates 21c, 22c, 23c, which blocks the normal time display although counters 21-23 continue to run, and open gates 72a to 72d. The timer switching signal passes via gate 72a to a register 37 which selects the appropriate storage register 41 to 49 to which the timer pre-setting signals are to be applied. Thus to set the first time, the register 37 produces an output in a line 37a which opens gates 38, 39, 40. The hour signal will thereby pass to be stored in register 41, the minute signal in register 42, the seconds in register 43. After setting the first time, a signal produced in photo-electric element 70a operates the shift register 37 to allow the signal to appear on a line 37b. This permits the second predetermined time to be stored in registers 44, 45, 46 and so on by increasing the number of registers the number of predetermined times which can be "written in", can be increased. The pre-set time components i.e. the hours, minutes, seconds stored in the registers is compared in AND gates 53, 54, 55 respectively with the outputs of the hours, minutes and seconds counters 23, 22, 21 respectively and on correspondence an alarm 58 is activated. In addition a visual time indication is given by a display element 10. Display elements 11, 12, 13 are individually activated to indicate which predetermined time setting is functioning. The same display panel may be employed to display the pre-set time or time of day as in Fig.4 (not shown).
Patent GB-1093679-A (GB)
Title: Climbing tower crane
IPC: B66C9/14
Filed: 1966-10-24
Abstract: 1,093,679. Climbing tower cranes. HILGERS A.G. Oct. 24, 1966 [Oct. 27, 1965], No. 47657/66. Heading B8B. A climbing tower crane comprises mast sections 1 surrounded at the upper end by a guide sleeve 2 carrying a roller bearing connection 3 from which the climbing crane section 4 projects upwardly and rearwardly with respect to the load-carrying boom 5 to an extent leaving enough space for a mast section 1 to be lowered by the load hook 7 through the roller bearing 3. In line with the boom 5, which has a traveller 6, is a counter-boom 8 with a displaceable counterweight 9. The mounting of a further mast section is effected without re-moving the hoisting cable.