baber/WOPTO huggingface dataset:
Patent GB-941365-A (GB)
Title: Process for polymerising 1, 3-butadiene
IPC: C08F136/06
Filed: 1960-11-14
Abstract: 941,365. Crystalline butadiene polymers. MONTECATINI SOC GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. Nov. 14, 1960 [Nov. 18, 1959; April 5, 1960], No. 39026/60. Drawings to Specification. Heading C3P. Crystalline polymers of 1, 3-butadiene having substantially syndiotactic -1, 2 structure are prepared by processes which comprise contacting butadiene with a catalyst formed by contacting a halogen free salt of a metal of Group VIII of the MendelÚeff Periodic Table with an aluminium trialkyl under such conditions that polymerization occurs. In a modification the catalyst is formed by contacting the metal salt with a mixture of an aluminium trialkyl and an aluminium dialkyl halide in a molar ratio of at least 0À8:1. Specified salts are the sulphates, phosphates, nitrates, carbonates, sulphides, cyanides, xanthates, acetates, propionates, butyrates, oxalates, 2-ethylhexanoates, acetylacetonates, benzoates, stearates and naphthenates. Salts of cobalt, nickel, platinum or palladium may be used in the form of complexes with pyridine, pyrrole, morpholine, aliphatic amines, nitriles, amides, alcohols, ketones, phosphines, alkyl phosphates and alkyl phosphites. Specified trialkyls are trimethyl, triethyl, tripropyl and triisobutyl aluminium. Specified dialkyl halides are diethyl and diisobutyl aluminium chloride. Polymerization may be effected in the presence of benzene, toluene, xylene or excess butadiene. Examples describe the polymerization of butadiene in benzene in the presence of catalysts formed from (1 to 4 and 8) cobalt stearate/pyridine complex and triethyl aluminium; (5 and 10) cobalt acetylacetonate and triethyl aluminium; (6) (a) cobalt phosphate and triisobutyl aluminium, (b) after aging; (7) (a) cobalt sulphate and triisobutyl aluminium, (b) after ageing; and (9) cobalt stearate/pyridine complex, triethyl aluminium and diethyl aluminium chloride. The polymers may be made into shaped articles such as films and fibres.
Patent GB-909808-A (GB)
Title: Improvements in or relating to the charging of horizontal coke ovens and like apparatus
Inventor: RANDELL GEOFFREY EDWARD CHARLE
IPC: C10B31/04
Filed: 1957-12-16
Abstract: 909,808. Handling charging hole lids for and charging coke-ovens. WOODALL-DUCKHAM CONSTRUCTION CO. Ltd. Dec. 11, 1958 [Dec. 16, 1957], No. 39059/57. Classes 51 (2) and 55(1). A larry car for a horizontal coke oven battery or like installation has means for removing and replacing mechanically a charging hole lid with the larry car positioned for charging, the lid handling means being movable about a pivoting axis and capable of engaging with the lid or with a part on or connected to the lid and of removing the lid from its charging hole and, without movement of the larry car, of moving the lid to one side of the charging hole and of also returning the lid into position in its charging hole when required. Preferably the larry car has a separate lid handling means for each charging hole to be charged simultaneously from the larry car and each lid handling means is independently and remotely controllable by an operator of the larry car. In the arrangement shown in Figs. 3 and 4 the charging hole lid 16 (which is one of three similar lids) is carried by a pivotally mounted bell-crank lever 22 the arms 26 and 21 of which is engageable with a trip rod 27 to remove and replace the lid. The trip rod is mounted between trip levers 28 rockable on a rod 29 journalled in bearings 30 carried on the underside of an auxiliary carriage 31 supported on and below the chassis 4 of the larry car the auxiliary carriage being movable relative to the larry car so that the trip rod 27 engages the arm 26 or 21 to remove or replace the charging lid. If it is desired to leave the charging hole lid removed from the charging hole means are provided to hold the trip rod 27 in a position clear of the upper end of the arm 21 when the auxiliary carriage is moved back over the charging hole. The auxiliary carriage also carries an intermediate shoot 52 which when the auxiliary carriage is moved to remove a lid is brought into position between the lower end of a hopper 9 of the larry car and the charging hole. Each intermediate shoot is formed with an extension trunk 55 which can be lowered or raised into or out of sealing engagement with the charging hole. In a modification, Fig. 7, the charging hole lid 16a has a cross-bar 71 in a channel in the upper surface of the lid and under which there may be engaged the end of a cranked lifting arm 72 fixed upon a shaft 73 pivotally mounted on an auxiliary carriage 31, an actuator 74 operating through crank arms 75, 75<SP>1</SP> and a link 76 is provided to lower and raise the lifting arm 72. In this modification the intermediate shoots are preferably mounted directly on to the discharge openings of the individual hoppers and are not carried by the carriage 31. In a further modification the end of the lifting lever is adapted to hook over the upper side of the cross-bar 71. In a still further modification the lids are lifted and lowered by an electromagnet. Specification 909,807 is referred to.
Patent GB-879519-A (GB)
Title: Process for producing fast dyeings or prints on fibres or foils of aromatic polyesters
IPC: C09B19/02
Filed: 1958-12-03
Abstract: Fibres and foils of aromatic polyesters are dyed or printed by applying at an elevated temperature an aqueous dispersion of a dioxazine dyestuff obtainable by subjecting to ring closure a diarylaminobenzoquinone of the formula:- <FORM:879519/IV(c)/1> wherein X represents a halogen atom and R1, R2, R3 and R4 represent hydrogen or halogen atoms or alkyl, aryl, alkoxy, aryloxy, arylamino or acylamino groups. Dyeing may be effected at about 100 DEG C. in the presence of a carrier such as chlorobenzene, o-phenylphenol or a 2-hydroxynaphthalene-ethylene oxide condensation product. Alternatively, dyeing may be effected at a temperature above 100 DEG C., under pressure.  The dyebath or paste contains the usual dispersing agents and thickeners.  Examples are given. Specifications 313,094 and 420,683 are referred to.
Patent GB-1358568-A (GB)
Title: Bonded nonwoven fabrics
IPC: D04H1/66
Filed: 1971-08-20
Abstract: 1358568 Print bonded fabrics; testing fabrics JOHNSON & JOHNSON 20 Aug 1971 [21 Aug 1970] 39198/71 Headings D1R D1S and D2B  A bonded non-woven fabric comprises a fibrous web bonded by an intermittent pattern of spaced synthetic resin binder areas having a substantially uniform concentration of resin binder therein of from 50% to 120% by weight based on the weight of fibres in the binder areas. Preferably the binder is applied as a stable alkaline colloidal aqueous dispersion containing the synthetic resin, a hydroxy containing co-ordinating ligand such as carboxyl being present in the resin or in a surfactant component of the dispersion and a metal complex coordination compound, the dispersion being acidified immediately after printing or the fabric heated to expel volatile alkali such as ammonia, whereby the metal cations are released from coordination to coagulate the dispersion and thereby check migration. The latter aspect is claimed in Specification 1358569. The web may be air laid or wet laid. Alternatively an orientated web may be obtained by carding fibres or by using fluid jets to align the fibres of a randomly aligned fibrous web. 1¢ inch 1¢ denier rayon fibres bleached cotton and 2¢ denier water insoluble polyvinyl 66 and 610, polyester, acrylic, modacrylic, alcohol fibres are exemplified, wool, nylon 6, polyethylene polypropylene and cellulose ester fibres are listed. 1% to 8% acrylic, methacrylic or itaconic acid, polymerised with butadiene/ styrene, ethylene/vinyl acetate or with an acrylic monomer are exemplified as binders; polyvinyl acetates, polyolefins, synthetic rubbers, polyurethanes, polyamides and polyesters are mentioned. The aqueous dispersion comprises 0.01 to 60% by weight of resin and, based on the weight of resin, 0.1% to 2% of a (preferably anionic surfactant) and 0.1% to 3% of zinc tetramine sulphate or other specified metal complex coordination compound. It is applied with a roll engraved with wavy lines to a web wet with aqueous acetic acid. Binder migration is thus reduced to 200% or less, giving bonded areas having a substantially uniform concentration of binder of 50% to 120% by weight based on the weight of the fibres in the bonded areas. The binder may extend through all or part of the web thickness. In order to measure the binder distribution the print bonded fabric is immersed in a boiling solution of Celliton Fast Violet, which renders the cellulosic fibres white and the binder opaque. The dried sample is mounted on a white surface under a ground glass camera to yield a 20 fold enlarged image. The image is scanned by an optical densometer which is set at zero at a binder-free area. Measurements of, reflected light are made every 2 mm of the enlarged image.. The optical density increases from zero to substantially its maximum value (0.6 to 1.0) in moving less than 1mm from an unbonded to a bonded area.
Patent GB-980862-A (GB)
Title: Polymeric materials
IPC: C08F20/62
Filed: 1961-11-02
Abstract: Cross-linked copolymers suitable for use as cation exchange resins are prepared by a process which comprises polymerizing in the presence of a polymerization catalyst a mixture comprising (1) acrylonitrile, (2) acrylic or methacrylic acid, an ester of acrylic or methacrylic acid, or a mixture of acrylic or methacrylic acid with an ester thereof and (3) commercially available divinyl benzene, saponifying the ester groups under mild conditions where the copolymers contain no carboxyl groups, heating the copolymers at 150 to 200 DEG  C. to effect condensation of the carboxyl and nitrile groups, and if necessary saponifying under strong conditions to convert the nitrile and/or ester groups still present in the polymer to carboxyl groups.  The catalyst may be benzoyl peroxide. Polymerization may be effected in aqueous suspension or in bulk, the product being ground or milled to the required granular size. Examples describe (I) the copolumerization of acrylonitrile, acrylic acid and divinyl benzene and (V) the heating of the product and saponification with hot concentrated sodium hydroxide solution; (II) the copolymerization of ethyl acrylate, acrylonitrile and divinylbenzene and (VI) the saponification of the ester groups with dilute sodium hydroxide solution and the heating of the product; and (III) the copolymerization of methyl acrylate, acrylonitrile, acrylic acid and divinylbenzene and (VII) the heating and saponification of the product.  The saponified products are useful as cation exchange resins.
Patent GB-847852-A (GB)
Title: A pozzolanic material and concrete produced therewith
Inventor: DERING HENRY OSCAR
IPC: C04B7/13
Filed: 1957-12-18
Abstract: China clay residue calcined at preferably 700 DEG  to 850 DEG C. is pozzolanic and is used as an ingredient in concrete which may be made porous by agitation, blowing air through, gas generation reaction. Specifications 564,060 and 631,530 or are referred to.
Patent GB-1146638-A (GB)
Title: An indicator of quantized levels of a variable electrical signal
IPC: H03M1/00
Filed: 1966-09-02
Abstract: 1,146,638. Voltage level indicator. G. VALENSI. 2 Sept., 1966 [21 Dec., 1965], No. 39414/66. Addition to 1,086,281. Heading G4H. In a quantized level indicator (Fig. 1a) of the kind described in Specification 1,086,281, field effect transistors T0; T1 to Tn - 1 are inserted respectively between the input signal Ve and the input of the device and between the several outputs S1 to Sn - 1 and their corresponding receivers or displays, which transistors may be succeeded by feedback amplifiers. Earthed Zener stabilizing diodes are connected to discrete points of the resistance chain Rh to minimize intercoupling between resistance sections (Fig. 2, not shown). The differential transformers series-connected between the resistance chain and diodes d1, d2; d<SP>1</SP>2, d3; d<SP>1</SP>i, di + 1; d<SP>1</SP>n - 1, dn to produce pulses indicating the quantization step within which lies the instantaneous value of the input signal, are replaced by differential amplifiers, which may comprise emitter coupled transistors whose bases are energized from the diode pairs and returned to the resistance chain Rh over series resistors. One of the collectors then develops the requisite output pulse (Fig. 3, not shown), and the coupled transistors may be replaced by two differentially connected operational amplifiers intercoupled to provide high common mode rejection, which are constructed as an integrated circuit.
Patent GB-1356663-A (GB)
Title: Motor driven portable machine tools
IPC: B23B45/00
Filed: 1971-08-24
Abstract: 1356663 Portable wrench; portable drill ROBERT BOSCH GmbH 24 Aug 1971 [25 Aug 1970] 39538/71 Headings B3N and B3C A hand held machine tool, e.g. a drill, a percussion drill or .a screwdriver is driven by an electric motor in a casing through a gear transmission 3, a lug 11 adapted for connection to a handle being formed on an intermediate flange 6 located forwardly of the motor and supporting a front bearing of the shaft 7 of the motor and at least one rear bearing of a shaft of the gear transmission, the casing 9 of the transmission being detachably connected to the flange. The handle consists of'two complementary shells 13, 14 formed of synthetic material. Shell 13 is attached by a screw 23 to key 11 which has a threaded hole 12; shell 14 is attached to shell 13. A cable 15 is attached to the handle and the leads thereof run in shell extensions 13<SP>1</SP>, 14<SP>1</SP> into a cap consisting of interlocking shells 20, 21 housing a reversing switch 22. Removal of the handle and fitment of another cap to take the.supply cable and the switch enable the tool to be used without the handle.
Patent GB-1023618-A (GB)
Title: Slab milling machine
IPC: B21B45/04
Filed: 1964-09-29
Abstract: 1,023,618. Milling and rolling machines. TORRINGTON MANUFACTURING CO. Sept. 29, 1964 [May 25, 1964], No. 39582/64. Headings B3B, B3K and B3M. A slab-milling machine comprises a cutter 26 on a horizontal axis, a parallel back-up roll 28, and entry and exit guide means for the work comprising upper and lower rolls 106, 150, 176, Fig. 6 (not shown), which cause the work to be bent slightly about the back-up roll as it passes beneath the cutter. A second cutter 22 is provided so that both sides of the work are machined. The work may be fed by units 14, 16, 18 from a coil formed by up-coiling after hot rolling or directly from a hot rolling mill. It may be fed to an up-coiling device or to a cold-rolling machine. The inserted blade cutter 26, Fig. 3 (not shown), is mounted in bearing blocks 44a which can be adjusted vertically downwards, by screw means acting against springs 42a, and is rotated by a flexible drive connected to a stub 60. The roll 28 is similarly mounted and adjusted. The guide means 64 for the mounting blocks are made in two pieces on one side and a single piece 62a on the other. The cutter- and roll-mountings are clamped after adjustment by eccentrics rotated by fluidpressure-operated levers. The cutter and roll are both rotated clockwise. A block 110, Fig. 6, carrying the guide rolls 106 is adjustable on roller guides by a screw 130 and is raised and lowered by hydraulic means 122. Two lower guide rolls 150 are adjusted by a screw 162. Both sets of rolls can pivot about pins 126, 156 to allow for variations in work thickness. The exit rolls 176 are mounted similarly to the entry rolls. Gauging-devices.-The adjustments of the cutters and guide rolls are indicated by dials on the machine fronts. A non-circular disc 260, Fig. 2 (not shown), coaxial with the cutter 26, indicates the ground diameter of the cutter and co-operates with a circular disc 262 having the diameter of the back-up roll 28. A similar disc is provided for the cutter 22.
Patent GB-974701-A (GB)
Title: Improvements in acoustic systems
Inventor: PARKIN PETER HUBERT
IPC: G10K15/10
Filed: 1959-11-25
Abstract: 974,701. Modifying acoustic properties. COUNCIL FOR SCIENTIFIC & INDUSTRIAL RESEARCH. Nov. 23, 1960 [Nov. 25, 1959], No. 39969/59. Heading G5X. [Also in Division H4] A microphone 13 and loudspeaker 15 are located in an auditorium and are coupled by an amplifier 14 the gain of which is adjustable to control the reverberation of the auditorium. The microphone and loudspeaker are located at points on a selected normal mode of vibration in the auditorium between which a minimum or substantially minimum amplifier gain is required to produce the desired maximum reverberation time for the selected mode, and the amplifier gain is set to a value at which the required reverberation time at the selected mode frequency is obtained. Two or more loudspeakers may be located at different positions and fed from a common microphone and amplifier. A few hundred microphone-amplifierloudspeaker units may be constructed, each unit catering for a different normal mode of vibration. The highest frequency mode may be 2,000 cycles per second, preferably 1,000 cycles per second.
Patent GB-1492925-A (GB)
Title: Synchronising receiver clock circuit
IPC: H04L7/027
Filed: 1974-11-25
Abstract: 1492925 Data transmission; synchronizing POST OFFICE 25 Nov 1974 [23 Aug 1973] 40051/73 Heading H4P An arrangement for synchronizing a receiver clock with randomly occurring incoming data transitions comprises an oscillator including an inverting Schmitt trigger stage tuned to bit rate frequency having phase resetting means responsive to transitions which resets the oscillator to a determined phase relation, the oscillator being sufficiently stable to bridge the longest gap which can occur. The phase resetting means may include a monostable operable in response to "1" bits. Oscillator I may be an integrated Schmitt trigger circuit feedback tuned by a variable capacitor 9 and monostable 5 may also be an integrated circuit with its time constant settable by variable capacitor 11, its output being inverted by gate 7 through which through diode 4 shunts capacitor 9 hence inhibits oscillator 1 i.e. on each "1" leading transition oscillation of oscillator 1 is inhibited for the set time of monostable 5. In a refined arrangement (Fig. 3, not shown) inverter and AND gate (12, 13) are included to prevent spurious noise signals inhibiting the oscillator for any significant time. Both the above arrangements can be used with duty cycles up to 100% for 1 bits. An alternative arrangement is given in Fig. 4 (not shown) for a 50% duty cycle which comprises an oscillating inverting feedback amplifier (19) tuned by a variable capacitor with data pulses fed through an inverting amplifier (15) and diode (4).
Patent GB-978532-A (GB)
Title: Condensation products of methylol ketones
Inventor: WAAG THEODOR
IPC: C08L61/02
Filed: 1962-10-23
Abstract: Condensation products of mono-, di- or tri-methylol-ketones are obtained by reacting the monomers using as a catalyst (a) a 40% to 60% aqueous solution of sodium or potassium hydroxide, or (b) an alcoholic solution of sodium or potassium alcoholate, or (c) an alcoholic solution of sodium or potassium hydroxide. The catalyst may be used in a concentration of 0.5% to 5.0% by volume. Foams may be obtained especially when aqueous sodium or potassium hydroxide is used. Fillers, plasticizers and foam regulators may be included. In examples resins are obtained from an acetone-methylol compound containing an average of 1.7 methylol groups per molecule using a 50% aqueous sodium hydroxide solution as catalyst.
Patent GB-926989-A (GB)
Title: Improvements in or relating to composition blending apparatus
IPC: B01F15/00
Filed: 1959-11-26
Abstract: 926,989. Mixing appliances. DIAMOND ALKALI CO. Nov. 26, 1959 [Nov. 28, 1958], No. 40238/59. Class 86. [Also in Group XVIII] An automatically controlled mixing apparatus for the preparation of silicate adhesives of predetermined viscosity comprises a mixing chamber 10 with agitator; an inlet 16 with valve 18 operated by solenoid 85 for silicatecontaining composition; an inlet 12 for water metered by meters 34, 36 with control valves 33, 35; and an outlet conduit and pump 22, 24 and 2-way valve 28 by which successive batches of adhesive of differing viscosities may be separated. The tank 10 has a liquid level probe electrode 62 (see Fig. 3, not shown, and Group XVIII). The mixing tank having already the required amount of silicate solution therein, the cycle of operations is started by opening manually the supply valves 33, 35 to the water meters, which dispense the predetermined quantity and then shut off automatically. The valves 33, 35 are mechanically connected to the switches 98, 100, closing which starts the cycle controller or timer 50 which moves to position 1 in which it starts the mixer 10. After a predetermined interval it moves to position 2 which stops the mixer and actuates pump 24 for a predetermined time, emptying the mixer. It then moves to position 3 which stops the pump and energizes the cycle controller drive relay 58, which stops the timer drive and energizes the level control 56 which in turn opens the silicate feed valve 18. When the silicate solution reaches the tip 63 of the probe 62, the cycle controller relay is energized, closing valve 18 and energizing the timer drive circuit. The cycle controller then resets itself and de-energizes the entire. control system. The apparatus is then ready for another cycle with the silicate in the mixing tank.