baber/WOPTO huggingface dataset:
Patent GB-1218608-A (GB)
Title: Improvements in and relating to the manufacture of vinyl chloride
IPC: C07C17/156
Filed: 1968-03-19
Abstract: 1,218,608. Vinyl chloride. KANEGAFUCHI KAGAKU KOGYO K.K. 19 March, 1968 [5 April, 1967], No. 13237/68. Heading C2C. Vinyl chloride is obtained by the catalytic oxychlorination of ethylene with hydrogen chloride and an oxygen-containing gas, wherein the molar ratio of ethylene to hydrogen chloride is 0À6:1 to 1:1 and the minimum molar ratio of oxygen-containing gas to hydrogen chloride is 1À25: 1, and the cracking of the ethylene dichloride so formed, hydrogen chloride formed in the cracking step being recycled to the oxychlorination reactor and the unreacted ethylene in the effluent from the oxychlorination reactor being separated, combined with fresh ethylene and reacted with chlorine to give further ethylene dichloride for supply to the cracking reactor. The oxychlorination catalyst, which may be in the form of a fixed or fluidized bed, a fused salt or an aqueous solution, may be copper chloride or a mixture of copper chloride with alkali metal, alkaline earth metal and/or heavy metal salts, optionally supported on γ-alumina, silica or active carbon and optionally in admixture with an inert diluent, e.g. α - alumina or silicon carbide. The chlorination may be effected in the presence of a catalyst, e.g. iron chloride or aluminium chloride and/or a solvent, e.g. ethylene dichloride, and the cracking process may be carried out in the presence of a cracking promotor, e.g. chlorine, a polyhalogenated methane or a metal halide, and/or a side-reaction inhibitor,
Patent GB-132414-A (GB)
IPC: G10K9/10
Abstract: 132,414. Codd, M. A. Dec. 10, 1918. Diaphragm vibrators. - In an electricallyoperated diaphragm vibrator, the armature e carrying the striker b is not rigidly connected to the resilient element with which it usually coacts. As shown, the resilient element comprises a pair of thin blade springs f, f<1> loosely engaging the armature. An additional spring g carries the usual contact members. The magnet is provided with a pair of diametrically opposite poles d engaged by the armature, which is notched at the middle e<1> of each part facing the poles.
Patent GB-1247634-A (GB)
Title: Microporous synthetic sheet materials and coating compositions used in the production thereof
IPC: D06N3/14
Filed: 1970-03-19
Abstract: 1,247,634. Laminates. E.I. DU PONT DE NEMOURS & CO. 19 March, 1970 [1 April, 1969], No. 13297/70. Heading B5N. [Also in Divisions B2 and C3] A vapour permeable, coriaceous, synthetic microporous sheet material comprises (1) a porous substrate of a synthetic polymeric material, reinforced with fibres, and having adhered thereto a microporous synthetic polymer coating (A) and (2) 0À02 to 5 mils of a non-porous vapour permeable finish (B) in adherence with the microporous coating (A), and consisting of a blend of (a) 20 to 80% by weight of a polyurethane obtained by reacting an aliphatic or cycloaliphatic diisocyanate with a hydroxy terminated polyester glycol of M.W. 500 to 3500 to form an isocyanate - terminated prepolymer which is then chain extended with an aliphatic or cycloaliphatic diamine, hydrazine or a monosubstituted hydrazine and (b) 80 to 20% by weight of cellulose acetate butyrate having a butyral content of 10 to 60% by weight and a viscosity of 1 to 20 poises as measured according to the ASTM-D-1343-54-T test procedure. The microporous sheet material (1) is suitably a porous substrate of non-woven web of polyester fibres that are impregnated with a polyurethane or blend of a polyurethane and polyvinyl chloride, the porous substrate having a microporous polymer coating of a polyurethane or similar blend. Alternatively an interlayer fabric may be placed between the porous substrate and the microporous coating. The finish composition may be applied from solution by spraying, roller coating, dipping, swabbing, brushing, padding or printing or it  may be formed into a film and laminated to the surface of the microporous material. It is often preferably to have a finish of two separaet layers, the first layer containing a large amount of pigment and the second layer being clear or pigmented depending on the aesthetics required for the sheet material.
Patent GB-1267678-A (GB)
Title: Improvements in and relating to the manufacture of a pencil lead
IPC: B43K19/18
Filed: 1969-03-13
Abstract: 1,267,678. Lignin bonded graphite. MITSUBISHI PENCIL CO. Ltd. 13 March, 1969 [21 March, 1968; 11 June, 1968], No. 13307/69. Heading C1A. [Also in Division B6] A pencil lead is prepared by dissolving in water or other solvent up to 50% by weight (of the total wt. of solids to be mixed into the solution) lignin or sulphonated lignin and, optionally, size to form a lignin containing or lignin/size containing solution, adding as the remaining solids content a mixture of carbon black and graphite, said mixture containing at-least 80% by weight of graphite, mixing the added substances, stirring the mixture, evaporating sufficient solvent from the mix to permit shaping of the mixture, shaping the mixture, drying the shaped bodies in air and baking the shaped bodies at a temp. rising gradually and continuously from room temperature to between 1000 and 1200 C. in an inert or reducing atmosphere. The shaping step preferably comprises an extrusion step. The baked leads may be dipped in oil so that the pores of the leads become saturated with oil. During the baking step, the temp. of the mixture may be raised at 5-10 C./hour until a tamp. of 500 C. is reached, the temp. then being raised at a greater rate, e.g. 30-50 C. per hour. The amount of size added may be 5-23% by wt., and the size may be tragacanth gum, sodium alginate, polysodium acrylate, carboxymethyl cellulose, or polyvinyl alcohol. The lignin or compound thereof may be: sulphonated lignin, thiolignin or the sodium salt thereof. The extrusion moulding step may be carried out at 80-95 C. and the inert or reducing atmosphere may comprise nitrogen.
Patent GB-684942-A (GB)
Title: Improvements in the manufacture of wax articles
Inventor: KEOGH DANIEL JAMES
IPC: B29C43/00
Filed: 1951-06-05
Abstract: <PICT:0684942/III/1> Nightlights are moulded by pressing pulverulent wax in a mould. The particles may be of any shape and may be formed either by milling or cutting or by spraying liquid wax into the air in such a manner that the droplets solidify before they are collected.  A machine for moulding a ring (see Group V) may be adapted for moulding a nightlight by replacing a core 38 with a pin which makes a small hole for insertion of the wick.  In operation of the machine a hopper 4 containing pulverulent wax is reciprocated by a cam 30 over the mould 1 to allow wax to fall through a port 5 into the mould.  The wax is pressed by an eccentric driven top die 6.  The die 6 is then raised and a bottom die 3 is raised by a cam-operated lever, (Fig. 1, not shown), to eject the moulded nightlight which is pushed down a shoot 37 by the hopper on its next feeding movement. The die 3 is lowered rapidly with the aid of a spring.  The lowermost position of the die 3 may be adjusted by a wedge-shaped stop 42.  The mould may have removable liners.
Patent GB-941047-A (GB)
Title: Improvements in or relating to vehicle body construction for ventilating purposes
Inventor: STRATTON DESMOND GEORGE
IPC: B60H1/24
Filed: 1961-04-13
Abstract: 941,047. Ventilating vehicles. FORD MOTOR CO. Ltd. March 9, 1962 [April 13, 1961]. No. 13360/61. Heading F4V. A vehicle roof panel 87 is provided with a depressed central portion 89 which extends forwardly from the rear window 88 and has an aperture 90 in the region in which it rises to meet the normal roof line. A plate 95 having a transverse vent 97 extends rearwardly from the front edge of said depressed portion and has a downwardly. directed rear portion which is spaced from the depressed portion 89 to allow water to flow rearwardly through the resultant gap 103. Water deflecting baffles 93 and 94 are positioned above and below the top and bottom edges respectively of the aperture 90. It is stated that the vent 97 is located at a point on the roof where the pressure is subatmospheric when the vehicle is in motion and that this effect in addition to the displacement caused by air discharged from the vehicle heating and ventilating unit causes air to flow from the vehicle interior through the apertures 90 and 97.
Patent GB-393072-A (GB)
Title: Device for locking the chases in screw cutting die stocks
IPC: B23G5/08
Filed: 1932-05-09
Abstract: 393,072. Securing die-heads. METIVIER, LANG, ET CIE, 149, Rue de Rome, Paris. May 9, 1932, No. 13379. Convention date, May 8, 1931. [Class 83 (iii).] In a cam-operated die-head wherein the radial chasers M carry pins 3 coacting with slots 4 in the cam-plate P, the latter is provided with an arcuate slot R through which passes a locking bolt B having its nut formed as a lever D. The head of the bolt is provided with a transverse slot K which is engaged by a pin E on an operating lever A pivoted to the head 1 at C, the arrangement being such that when the lever is in the closed position, as shown in Fig. 1, the centres of the pin E and pivot C lie on a line tangential to a circle concentric with the head so that the cutting resistance on the chasers has no tendency to open the head. A spring-pressed ball co-operates with the lever A to retain it in the closed position, and a bush 2 screwed to the head 1 retains the cam-plate in position. The lever D is loosened to release the cam-plate and allow the diehead to be set to the required size whereupon, after tightening of the lever D, the head may be opened to release it from the work and reset to the same size by operation of the lever A.
Patent GB-1029872-A (GB)
Title: Method and apparatus for the treatment of fibres
IPC: D01G99/00
Filed: 1964-04-01
Abstract: Wool fibres are aged by applying heat and/or moisture e.g steam, to at least one continuously moving sliver or top e.g. as delivered from a carding-engine, gill-box or combing machine, collecting the treated sliver under controlled tension and storing it to obtain a desired stress relaxation or strain recovery in the fibres.  The sliver may be collected in a ball under sufficient tension to maintain a low crimp level, or under minimum tension in a can wherein it is stored for sufficient time to permit contraction of the fibres.  In one apparatus, Fig. 1 (not shown) oil and combed wool top A is fed by back rollers 1 into fallers 2 of an intersecting gill-box and emerge through front drafting rollers 3 one of which is covered by a leather apron 4 tensioned by roller 5.  The normal passage under a guide bar 6, through trumpet condenser 7 to winding rollers 8 which form a crosswound cylindrical package or ball, is interrupted by passage of the sliver through a guide 11 (which narrows the sliver) and a curved guide 12 on to, and one or more turns or paths over or around, a rotating perforated drum 10 through which air and/or steam is passed radially inwards or outwards and through the sliver.  A fan (not shown) may circulate air through the drum and sliver, its path being restricted by a baffle plate 15.  The precise speed of the drum is adjusted so that the sliver between rollers 3 and the drum is maintained under a constant low tension.  The drum &c. is housed in a box 16 which retains the hat humid air in the fan circulating system and from which condensate is drained.  Sliver led off the drum by a guide 13 is adjustably tensioned.  The apparatus of Fig. 2 (not shown) may be substituted for the drum 10 and comprises a trumpet (replacing trumpet 7 shown in Fig. 1) the portion 21 of which is rotated.  A, or the, stationary ring(s) 22 or/and 23 is/are supplied with steam &c. from pipe(s) 24 or/and 25 and comprise passages 26 and 27 to allow manifold access to the sliver.  Adjustable tension control is effected by a spring clip 32 exerting pressure on a slidable block 28 pressing on sliver A which passes over a fixed block 31.
Patent GB-821695-A (GB)
Title: An improved tape applying machine
Inventor: MCFADDEN RAY E
IPC: B65B7/28
Filed: 1956-05-01
Abstract: 821,695. Applying adhesive sealing tape. MINNESOTA MINING & MANUFACTURING CO. May 1, 1956, No. 13384/56. Class 73 A machine for applying normally tacky adhesive tape 13 to a rotatably supported object 11 of generally cylindrical shape comprises a tape supply spool 12, a movable applying assembly 15-20, and a tapecutter 21-22. The assembly is mounted on a rod 17 and consists of a freely rotatable tape applying roller 15, the axis of which is adjacent and parallel to that of the object and of a tape holding roller 20 that can only rotate in the direction of the unwinding tape Which contacts it on the adhesive face. In operation, the rod 17 is moved towards the object 11 by a pneumatic cylinder 18 so that the end of the tape 13<SP>1</SP> is pressed on to the object 11 by the applying roller 15. The object 11 rotates to wind on the tape, which the irreversible holding roller 20 prevents from coming unstuck. After the required length of tape has been wound, a knife 21 on a rod 22 in the pneumatic cylinder 23 moves out to cut the tape. The severed end of the tape is then pressed on to the object 11 by buffing roller 25 and the cut end of the tape 13<SP>1</SP> lies on the applying roller 15 ready for the start of a new taping cycle. To prevent "snatch" on the tape due to unwinding resistance a small additional length of tape is unwound due to movement of the holding and applying rollers relative to a fixed pin 20 situated between them and the tape supply (Figs. la and 2a).
Patent GB-1327121-A (GB)
Title: Electronic technique for an all-electronic cylindrical array beacon antenna
IPC: H01Q3/28
Filed: 1971-05-06
Abstract: 1327121 Aerials; amplitude modulators INTERNATIONAL STANDARD ELECTRIC CORP 6 May 1971 [11 May 1970] 13468/71 Headings H3R and H4A In an electronically scanned cylindrical aerial array with radiating elements arranged in juxtaposed columns, each column is individually excited with R.F. energy which is modulated by a plurality of modulation signals and which is suitably phased so that a rotating field effect is obtained. Column excitation apparatus comprises first and second modulators which are fed with radio-frequency carrier signals and with respective first and second modulation frequency signals. The modulating signals synchronously generated, and the frequency of the second signal is greater than that of the first signal. Phase shift means are included in the path of the R.F. input to, or in the path of the output from, the second modulator. A composite column excitation signal is obtained by combining the output from the first modulator with the phase shifted output from the second modulator. An embodiment having a particular relationship to a TACAN aerial system such as that which is described in Specification 1,247,242, comprises a 6dB directional coupler 2, Fig. 10, which receives R.F. input power at a terminal 1, and which divides said power between lines 3 and 28. In the line 3 is a balanced modulator which includes two PIN diodes 10, 14, a 3dB directional coupler 7, inductors 6, 12, 13, 16, resistors 11, 15 and coupling capacitors 4, 18. 15 Hz modulation signals which are applied at terminals 9, 9a are conveniently of squarewave form. The output from the balanced modulator is further modulated at 45 Hz in a sine wave approximation by means of a single-ended modulator which includes a PIN diode 20, inductors 22, 46, a resistor 21, and a coupling capacitor 25. 45 Hz modulation signals (third harmonic of 15 Hz) are applied at a terminal 23. The output signals have a modulation envelope as shown at inset "B", and they are applied to one input of a 6dB directional coupler 26. In the line 28 is a balanced modulator which includes two PIN diodes 33, 34, a 3dB directional coupler 32, inductors 31, 36 and coupling capacitors 29, 37. 135 Hz squarewave modulation signals are applied at terminals 45, 45a. The output signals have a modulation envelope as shown at inset "C" and are applied through a phase-shift element 38, such as a length of transmission line, to the other input terminal of the directional coupler 26, the output of which, at a terminal 27, is a composite excitation signal for a column of radiators of the cylindrical aerial array. The arrangement is stated to improve the operating bandwidth and the coverage in elevation of the aerial array.
Patent GB-1147534-A (GB)
Title: Improvements in or relating to diazo-type materials
IPC: G03C1/58
Filed: 1966-03-28
Abstract: 1,147,534. Resorcylic acid derivatives. RENKER-BELIPA G.m.b.H. 28 March, 1966 [6 April, 1965], No. 13534/66. Heading C2C. [Also in Division G2] Resorcylic acid derivatives of formula wherein X is O or S, and R is H, alkyl, alkenyl, alkoxyalkyl, (di-alkylamino) alkyl or aryl, are prepared by reacting resorcylic acid hydrazide or its hydrochloride with an appropriate isocyanate or isothiocyanate, optionally in the presence of a solvent.
Patent GB-234809-A (GB)
Title: Improvements in electron discharge apparatus and circuit arrangements employing them
IPC: H04B1/16
Filed: 1925-05-25
Abstract: 234,809. British Thomson - Houston Co., Ltd., (Assignees of Clothier, S. L.). May 29, 1924, [Convention date]. Thermionic amplifiers and detectors, of the kind employing a four-electrode valve, have the inner or space-charge grid connected through an impedance to a point of positive potential, the impedance being adjusted so as to produce a reaction effect owing to the capacity between the two grids. As shown, the valve 1 has its control grid 4 and its filament 2 connected across a coil in a wireless receiving-aerial 6, the plate circuit including telephones and a battery 8. The spacecharge grid 5 is connected to a tapping 7 on the plate battery through a variable inductance 9 shunted by a variable condenser 10. The inductance 9 may be in the form of a variometer, the self-capacity of which may render a condenser 10 unnecessary. The current in the space-charge grid circuit varies in opposite phase to the plate current as the potential of the control grid varies, and the impedance 9, 10 is adjusted to have a suitable capacity reactance so that the potential variations on the grid 5 induce potentials on the grid 4 substantially in phase with those originally applied to that grid. Specification 149,014 is referred to.
Patent GB-510036-A (GB)
Title: Improvements in the of surface layers of high chromium content on articles made fromiron alloys
IPC: C23C10/02
Filed: 1938-05-06
Abstract: 510,036. Coating with metals. DAEVES, K., and BECKER, G. May 6, 1938, No. 13629. Convention date, May 11, 1937. [Class 82 (ii)] A layer of high chromium content is formed on the surface of alloys containing iron as the predominating constituent and containing more than 0.1 per cent of carbon by first decarbonizing their surfaces, e.g., by treatment with hydrogen at high temperatures, to such an extent that the carbon content at the surface is reduced to less than 0.1 per cent. and then treating with a chromium-carrier in gaseous form at a temperature above 900‹C. The gaseous chromium-carrier, which may be formed by passing gaseous hydrochloric acid over red hot chromium or alloys or compounds of chromium, is preferably caused to flow over the articles. The Specification as open to inspection under Sect. 91 describes also the treatment with a gaseous chromium-carrier of articles made from iron alloys containing less than 0.1 per cent. of carbon. This subject-matter does not appear in the Specification as accepted.
Patent GB-1123514-A (GB)
Title: Production of adipic acid
IPC: C07C51/31
Filed: 1967-03-23
Abstract: Adipic acid is prepared from the acid aqueous washing liquor obtained in the air oxidation of cyclohexane and which contains from 20-50% of organic by-products namely hydroxycaproic, adipic, glutaric and succinic acids and monocarboxylic acids by reaction with nitric acid at from 10 DEG  to 40 DEG  C. in the presence of nitrogen dioxide. A concentration of nitric acid of from 40 to 50%, and of nitrogen dioxide of 0.5 to 10% by weight on the reaction mixture and a temperature of 10 DEG  to 40 DEG  C. for the reaction are preferred. Crystalline adipic acid is removed with the aid of stirred impact bodies and conventionally separated, leaving a residual acid mixture of adipic, glutaric, and succinic acids.
Patent GB-623868-A (GB)
Title: Improvements in cigarette-making machines
IPC: A24C5/44
Filed: 1947-05-22
Abstract: 623,868. Cigarette - making machines. BROWN. H. N. May 22, 1947, No. 13743 [Class 130] In a hand-operated cigarette-making machine rollers 3, 13, are rotated from a hand wheel 15 through pinions 7, 6 to roll the cigarette, the paper being placed on a flat table connecting the end walls 1, 2 and a slot 16 allowing the finished cigarette to be lifted. The rollers 3, 13 are hollow and pivoted on pins projecting from the walls 1, 2 and a pivoted cover.
Patent GB-1010992-A (GB)
Title: Electrodeposition of copper
IPC: F15B1/24
Filed: 1962-04-10
Abstract: Copper cyanide plating baths containing free alkali cyanide are improved by adding polyethoxylated or propyloxylated quaternary compounds of formula <FORM:1010992/C6-C7/1> in which R1 or methyl, R is an alkyl radical of 8-16 C atoms, m and n are 1-14 and preferably m+n is 15.  R is preferably derived from a fatty acid, e.g. coconut oil or oleic acids.  X is an anion, e.g. halide, sulphonate, sulphate, metho-sulphate, citrate, or chloracetate.  Base metals include iron, nickel, zinc, lead or alloys.  Zinc die castings are preferably first given a flash coat of copper from a low cyanide bath.  Optional additions include alkali tartrates, gluconate, or saccharate, selenium or tellurium diethyl dithiocarbamate, lead acetate, and potassium thiocyanate.
Patent GB-1445527-A (GB)
Title: Asynchronous linear motor
IPC: H02K41/025
Filed: 1974-03-28
Abstract: 1445527 Linear motors LICENTIA PATENT-VERWALTUNGS-GmbH 28 March 1974 [31 March 1973] 13851/74 Heading H2A An asynchronous linear motor having a plurality of stator units along the motor path is controlled in speed by providing a moving rotor of laminated construction having at least one variable impedance multiphase winding in its slots. In the Fig. 7 embodiment in which the motor is used for a tracked vehicle the rotor 36 has two sets of windings 27, 28 on each side of its axis. These co-operate with stator windings 25, 26 producing a magnetic field 30 to drive the rotor. The rotor is sufficiently wide to make the sum of the air gaps 31, 32 less than one fifth the gap 33 between the stator units so that the reactance of the stator adjacent the rotor is much higher than where the rotor is absent. Thus several stator units can be connected in series, the potential divider provided by the presence of the rotor ensuring that most of the voltage is applied to drive the rotor thereby minimizing losses. When only one winding is supplied (Fig. 4, not shown) the stator units are sequentially energized by magnetic sensors at each end of the rotor (Fig. 6, not shown).