baber/WOPTO huggingface dataset:
Patent GB-953132-A (GB)
Title: Improvements in or relating to tubular processes for film manufacture
Inventor: STINCHCOMBE JOHN WRIGHT
IPC: B29C49/50
Filed: 1961-07-12
Abstract: 953,132. Tubular films. IMPERIAL CHEMICAL INDUSTRIES Ltd. June 27, 1962 [July 12, 1961], No. 25256/61. Heading B5B. In a process of biaxially oriented tubular film manufacture in which a tube (or bubble) of thermoplastic film is heated and then collapsed to a lay flat film by V-shaped guides, the film is preferentially cooled, before it is completely collapsed, in zones thereof which do not contact the guides, the zones being near to where edges will be formed in the collapsed film. Differential stretching, or " sag " around the circumference of the tube is thereby avoided, since normally, the zones of tube not in contact with the guides are hotter than the parts of the tube in such contact. The cooling, which may be by air jets, or plates or rollers in contact with the film, is preferably applied to two parallel zones of the film on either side of where an edge will be formed in the collapsed film. Subsequent supplementary cooling may also be applied over a wider area of the film, extending across where an edge will be formed. The cooling step may be applied to unheat set film, i.e. immediately after heating to cause biaxial orientation, or may be applied to heat set biaxially orientated film, immediately after the heat setting step. In one embodiment (Fig. 1) a tube of polypropylene 1 is passed between nip rollers 2 through which inflating air is admitted through probe 3. The tube, after heating to stretching temperature by infra-red heaters 4 is stretched and then collapsed by V-sectioned guide rollers 5. As the bubble of film is collapsed, it is cooled by jets of air 7 arranged in pairs and directed to the internal surface of the film on either side of where an edge will be formed by nip rollers 6. A further, wider jet 9 lower down the guides cools the film over a wider zone, extending across that part of the film which becomes one edge of the lay-flat film. The process is applicable to biaxially oriented thermoplastic films in general e.g. polyesters such as polyethylene terephthalate, or polyolefines such as polyethylene, polypropylene, polybutene - 1 and poly - 4- methylpentene-1. Specification 787,479 is referred to.
Patent GB-788989-A (GB)
Title: Improved synthetic wax materials and method of preparing the same
Inventor: FISCHER ELIAS
IPC: C09G1/18
Filed: 1956-08-17
Abstract: Salts of alkanolamines of the formula R-N(CH2CH2OH)2, where R is C12-C22 alkyl, are prepared with acids R1COOH, where R1 is C13-C21 alkyl or hydroxyalkyl; a mixture of acids can be used in which case a minor proportion may be unsaturated. Examples show the preparation of salts of diethanolstearylamine with behenic acid, myristic acid, hydroxystearic acid and mixed stearic-palmitic-oleic acids, and of diethanol-laurylamine with stearic acid.  Other specified amines are diethanol-myristylamine, -palmitylamine, -arachidylamine and -behenylamine.  Other acids that may be used are arachidic, palmitoleic and those from tallow, soybean oil, coconut oil, tall oil and marine oil; the unsaturated acids may be hydrogenated.ALSO:Synthetic polishing compositions contain as wax-like ingredient a salt of an alkanolamine R-N(CH2CH2OH)2 with an acid R1COOH, R being C12-C22 alkyl and R1 C13-C21 alkyl or hydroxyalkyl; the amine salt is either emulsified in water or mixed with a wax and a solvent therefor.  A mixture of acids can be used for making the salt, in which case a minor proportion may be unsaturated acids. Aqueous emulsions can be prepared with the aid of agents such as triethanolamine oleate, morpholine oleate, higher alkylamine acetates and polyglycol derivatives of fatty acid amides. For wax compositions the amine salts are melted with carnauba or ceresin wax, with or without paraffin, and a suitable solvent such as naphtha, turpentine or mineral spirits added.  Examples are given of such compositions, specified amine salts being diethanol-stearylamine behenate, myristate, hydroxystearate and mixed stearatepalmitate - oleate, and diethanol - laurylamine stearate.  Other suitable amines and acids are mentioned.
Patent GB-309067-A (GB)
Title: Improvements in and relating to loud speakers
IPC: H04R11/00
Filed: 1928-09-04
Abstract: 309,067. Ideal Werke Akt.-Ges. fiir Drahtlose Telephonie. April 4, 1928, [Convention date]. Mangnetic instruments.-In a loud-speaker having an armature mounted on a spring and oscillating about a central axis, the spring is fixed to a support, which is elastically rotatable about an axis coinciding with the axis of oscillation of the armature and is provided with an adjusting screw. The armature a passes though, and is soldered to, a flat spring b, mounted on a support c, preferably of brass, which is secured by screws d to a base g. The support c is cut away near the points k, h, so that its central portion can be rocked slightly about an axis passing therethrough to adjust the portion of the armature relative to the magnetic poles. The rocking is effected by means of a screw h against the pressure of a spring f.
Patent GB-1104045-A (GB)
Title: Balance device for pneumatic control units
IPC: F15B21/00
Filed: 1965-06-16
Abstract: 1, 104, 045. Pneumatic control systems. ERNST HEINKEL A. G. June 16, 1965 [July 4, 1964], No. 25429/65. Heading F1X. A balance device for the suppression of undesired oscillations in a pneumatic control arrangement having a signal actuator and a signal receiver inter-connected by conduits 1 and 2 includes at least one additional conduit 12 inter-connecting conduits 1 and 2. Signals from the actuator (not described) act on membranes 5 and 6 which move the head 9 of a pivoted lever arm 10. Conduit 12 is made in telescopic sections (12a), (12b), (12c), Fig. 2 (not shown) which are adjusted to tune out undesired oscillations. Conduits 1 and 2 may have telescopic sections between conduit 12 and the signal receiver and may be formed from flexible hoses with telescopically arranged ends. The arrangement may include guides on slide members to prevent buckling of the flexible conduits during adjustment.
Patent GB-977157-A (GB)
Title: Improvements in distance relays
Inventor: VASQUEZ-JIMENEZ RAFAEL
IPC: H02H7/30
Filed: 1962-07-03
Abstract: 977,157. Protective systems. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. July 3, 1962 [July 4, 1961], No. 25461/62. Heading H2K. A distance relay arrangement comprises a plurality of input circuits (one shown in Fig. 3) for deriving various components from various phase and line voltages and currents for different zones of operation, a detector device 12, Fig. 4, to determine the phase or phases having the highest current or currents, a selector 18 actuated by the detector device 12 to select the input circuit appropriate to the phase or phases detected and to change the reach of the relay from a shorter to a longer zone after a predetermined time, and a comparator 20 for comparing the phase relationship between the selected components and causing operation of a circuitbreaker tripping device when the angle between these components exceeds a predetermined value. The input circuit of Fig. 3 includes a voltage transformer 10 which produces an output voltage U R0  proportional to a line or phase voltage, and a current transformer 11 energized by the corresponding phase or line current. This current transformer has a secondary winding 8 connected to an impedance 9 across which is derived a voltage U 9R  phase displaced from the primary current by a constant angle. A second secondary winding of the transformer 11 through impedances 3<SP>1</SP>, 4 and 7 and potential dividers 1, 2, 3 produces three voltages U 1 , U 2 , U 3  proportional to the line or phase current multiplied by impedances representative of three zones of the protected feeder, these voltages being subtracted from the voltage U R0  to provide three voltages U 1 R, U 2R , U 3R . The selector 18 applies the selected components U 1R  (or U 2R , or U 3R ) and U 9R  to an amplifier 19 which for each component produces two signals of opposite sign to enable the elimination of errors due to transient D.C. components. The comparator 20 determines the angle between the components U 1R  and U 9R . The selector may supply a further component U R0  through the amplifier to the comparator which makes a further phase comparison to determine the angle between the components U R0  and, say, U 1R  or between U R0  and U 9R . The outputs of the phase comparator are applied to an " AND " element 30 which through a second " AND " element 35 provides a tripping signal D and controls a sequential switching element 36. This element 36 determines the zone selected by the selector 18 and through a delay element 37 the operation of the " AND " element 35.
Patent GB-337503-A (GB)
Title: Improvements in and relating to domestic clothes driers, airers and the like
IPC: D06F58/10
Filed: 1929-08-21
Abstract: 337,503. Urry, C. W. Aug. 21, 1929. Drying-stoves. - A gas burner 16 is placed in an inverted U-shaped combustion chamber 14 with pipes 17 leading to the sides and back of a clothes-drying cupboard which are made double or formed with flue conduits 19. Air rises through the open bottom of the chamber, is heated by passage between the pipes 17, which may be bent or formed with fins, and passes out by openings 26. Angular baffles 24 extend towards the top of the conduits 19 to form nozzlelike mouths 25 adjacent the openings 26, which are adjusted by slides 27 on a false top 22, so as to draw hot air through the cupboard. The hollow sides 19 may be formed as separate members and attached to the cupboard leaving spaces 21 for air or asbestos insulation. The top 23 carries a flue 6 and may be perforated. Legs 11 and a perforated partition 28 are provided Clothes are supported on shelves or rods 30 on brackets 29.
Patent GB-389138-A (GB)
Title: Improvements in process for treating liquor employed in kiers and the like
IPC: D06B5/00
Filed: 1931-09-11
Abstract: <PICT:0389138/IV/1> Materials or fibres of animal or vegetable origin, finished or unfinished, are treated in kiers &c. by circulating treating liquors containing reagents such as hydrogen peroxide or sodium peroxide which evolve ineffective gaseous oxygen during the treatment.  This ineffective oxygen is removed by passing the liquor from the kier 1 by a pump 6 through a heater 8, the liquor returning to the kier through the perforated pipes 17, 20 and the gas collecting in a container 23 from which it is allowed to escape by a valve 24.  Instead of a container 23 an automatic gas and liquid separating valve may be placed at the top of the heater 8.  The heater is preferably inclined.  Specifications 7903/99 and 15284/08, [both in Class 15, Bleaching &c.], are referred to.
Patent GB-898522-A (GB)
Title: Improvements in electric motors
Inventor: JENKINS STRATFORD
IPC: H02K19/08
Filed: 1957-08-13
Abstract: 898,522. A.C. motors. VACTRIC CONTROL EQUIPMENT Ltd. Aug. 12, 1958 [Aug. 13, 1957], No. 25539/57. Class 35. The rotor of a hysteresis motor comprises a cylinder 5 of ferromagnetic material, e.g. cobalt steel, with an outer sleeve 6 of a softer ferromagnetic material, e.g. nickel-iron, and is mounted on a flanged brass tube 3 on a steel shaft 1.
Patent GB-801396-A (GB)
Title: Improvements in or relating to plating metal on aluminium foil, wire, strip and the like
IPC: C25D5/44
Filed: 1955-09-06
Abstract: Aluminium strip, before being electroplated with, e.g. copper (see Group XXXVI) is abraded on one surface by a pair of rotating brushes and simultaneously given a zinc coating by dripping an aqueous solution of sodium zincate on to the brushes.  The solution may comprise 100 gms. per litre zinc oxide and 500 gms. per litre sodium hydroxide.
Patent GB-695624-A (GB)
Title: Improvements in, or relating to, continuous furnaces
Inventor: ARCHER ALBERT FREDERICK
IPC: C21D1/74
Filed: 1949-10-05
Abstract: 695,624. Heat treatment furnaces. BIRLEC, Ltd., METAL & PLASTIC COMPACTS, Ltd., and WILSDON, S. C. Jan. 3, 1951 [Oct. 5, 1949]. No. 25561/49. Class 51(ii) A continuous heat treatment furnace of the type wherein the charge is enveloped in a protective gaseous atmosphere of an explosive nature supplied from an external source and comprising a heating chamber 1 and a cooling chamber 2, is supplied with atmosphere gas, e.g. cracked ammonia, from a main supply pipe 4 through a central branch pipe 6, control valve 7, and flowmeter 8 at the zone where the heating and cooling sections meet and is also supplied with the atmosphere gas to burners 15 in canopies 11 formed at each end of the furnace. Branch pipes 9 and 10 incorporating valves 16 and flowmeters 17 feed the burners 15 which are disposed below a screen 19' which may be made vertically adjustable, the said burners 15 projecting a curtain of flame across the work inlet and outlet openings in order to prevent the inadvertent admission of air into the furnace.
Patent GB-1387604-A (GB)
Title: Films or fibres of acrylonitrile copolymer compositions
IPC: C08L33/20
Filed: 1972-06-01
Abstract: 1387604 Films or fibres of acrylonitrile copolymer/polyvinylpyrrolidone blends BAYER AG 1 June 1972 [5 June 1971] 25591/72 Heading C3P The invention comprises films and fibres made from a polymer blend of (A) 95-70 parts by wt. of a copolymer of acrylonitrile with 35-60% by wt. of vinylidene chloride and/or vinyl chloride and/or vinyl bromide and (B) 5-30 parts by wt. of a homopoly(N-vinylpyrrolidone), the total of (A) and (B) being 100 parts by wt. Polymer (A) may also contain 0À2-4% by wt. of a dye receptive monomer such as styrene sulphonic acid, methallyl sulphonic acid, (meth)- acryloyl(dimethyl)taurine, methacryloyl aminobenzenebenze disulphonimide and vinyl pyridine. The films and fibres are formed by drawing down or casting or spinning from solutions of the blend in solvents such as dimethyl formamide, dimethylacetamide, ethylene carbonate, gamma - butyrolactone, dimethylsulphoxide, hexamethyl phosphonic acid triamide, acetone, cyclohexanone and T.H.F. The K-value of the polyvinylpyrrolidone is preferably 20-90.
Patent GB-1102984-A (GB)
Title: Polymeric formals
IPC: C08G63/82
Filed: 1965-06-17
Abstract: Polymeric formals containing aromatic ester units are obtained by heating a dihydric alcohol containing an aromatic ester group with formaldehyde. An acid-reacting catalyst may be used.  The alcohol may be one capable of forming a polyester on its own, so that both polyformal and polyester formation takes place. The polymer may be further reacted with a cyclic oligomer of formaldehyde to polymerize the oligomer to polyoxymethylene, to obtain a copolymer containing units of the polymeric formal and polyoxymethylene units.  In examples polyformals are obtained by reacting bis-hydroxyethyl terephthalate with para-formaldehyde using methanesulphonic acid and p-toluenesulphonic acid as catalysts, and the polyformal is reacted with trioxane in the presence of boron trifluoride dibutyl ether complex. Other suitable dihydric alcohols are mentioned.
Patent GB-1384515-A (GB)
Title: Peroxides
IPC: C07C67/00
Filed: 1973-05-30
Abstract: 1384515 Peroxides AKZO NV 30 May 1973 [7 July 1972] 25682/73 Heading C2C [Also in Division C3] The invention comprises peroxides of Formula I in which R 1  and R 2  represent alkyl groups, n is 0-6; m is 1, 2 or 3 and when m is 1, R 3  is a C 1 -C 6  alkyl group or a phenyl group, when m is 2, R 3  is C 1 -C 3  alkylene group or a phenylene group and when m is 3 R 6  is a benzene triyl group, the compounds tert.-butyl-peroxy-1- methyl cyclohexanecarboxylate and tert.-butylperoxy-1,4 - dimethyl - cyclohexane - carboxylate being excluded. The compounds may be prepared by reacting a hydroperoxide of formula with a carboxylic acid chloride of formula
Patent GB-411339-A (GB)
Title: Improvements in combined tobacco pouches and pipe cases
IPC: A24F23/04
Filed: 1933-09-16
Abstract: 411,339. Tobacco pouches. RICHARDSON, F. S., 15, Seymour Place, Bryanston Square, London. Sept. 16, 1933, No. 25699. [Class 133.] A tobacco pouch comprising a wall portion 2 and end gussets 3, mounted on the inner face of a case 5 adapted to open in book-like form and closable by a sliding-clasp fastener is formed with a tubular pocket a to receive the stem of a pipe 7 the bowl of which is accommodated between the end of the pouch and the rounded end of the case. The pocket as shown is afforded between a buckled part b of the pouch wall and a strip c attached thereunder; it may, however, be provided between a rear wall of the pouch and the inner face of the case. A holder for strip matches may be incorporated.
Patent GB-1038608-A (GB)
Title: New compositions for use in acne and like conditions
IPC: A61K8/34
Filed: 1965-06-17
Abstract: A medicament for skin maladies consists of thixotropic aqueous mixture comprising 0.5-10% fibrous boehmite, 0.5-30% sodium thiosulphate, and 10-25% alcohol, the percentages being by weight and the mixture having a pH of 4-6.5.  The alcohol may be a C1-4 alkanol or C2-4 alkylene glycol, or mixture thereof.  The medicament may optionally contain salicylic acid, resorcinol, menthol, camphor, a chelating agent e.g. disodium EDTA, hydrocortisone acetate, hexachlorophene, p-chloro-m-xylenol, phenol, non-ionic and/or cationic detergents, e.g. an alkyl benzyl di (lower alkyl) ammonium chloride, sulphur, coal tar, ichthyol, or balsam Peru.
Patent GB-1448945-A (GB)
Title: Rotary lawm mowers
IPC: A01D34/82
Filed: 1974-06-11
Abstract: 1448945 Rotary lawn mower HUSQVARNA AB 11 June 1974 [19 June 1973] 25748/74 Heading A1F A rotary lawn mower comprises a side outlet 23 in a rotor housing 3 whose height increases progressively around a cutting blade rotor 7, the outlet having a lower edge portion 26 which extends upwardly and forwardly of a wheel supported chassis and having two pivotable doors 24, 25. A cover plate 27 locks the doors 24, 25 into their closed positions at which time, in use, a rear flap can be opened to fit a grass collecting box (Fig. 1 not shown). With the doors 24, 25 open to their fullest extent they allow grass and air to escape but prevent stones hit by the rotor 7 being thrown from the machine.
Patent GB-150191-A (GB)
Title: Improvements in vacuum cleaners
IPC: A47L5/04
Filed: 1919-10-21
Abstract: 150,191. Garscadden, G. Oct. 21, 1919. Vacuum cleaning-apparatus. - Apparatus in which the dust-collecting chamber, the suction chamber, and the pump chamber are alined, as in the " Rex " vacuum cleaner, is made single-acting and the casing is modified. The casing is made in two parts 1, 2 which by the aid of the sleeve 3 are united by a push-joint. The dustcollector 5 is mounted upon the spring 6 so that the suction is sufficient to agitate the collector and to prevent clogging by dust. The spring is carried by the ring 8. The piston consists of the cup-leather 9 and the cup-shaped metal support 10, the periphery of which is divided into the spring strips 10<a>. The discharge valve is formed of a flexible washer placed over holes in the piston, the washer, if desired, being formed with the non-coincident holes 14. In another arrangement, a flap valve is provided in a lateral passage upon the casing of the cleaner, the piston in such a case being non-perforate.
Patent GB-1224071-A (GB)
Title: Improvements in or relating to the scouring and milling of woollen fabrics
Inventor: BELL GEORGE
IPC: D06C17/00
Filed: 1968-05-30
Abstract: 1,224,071. Scouring and milling. CHERRY TREE MACHINE CO. Ltd. 22 July, 1969 [30 May, 1968], No. 25909/68. Heading D1L. In a method of scouring and milling woollen fabric (knitted or woven) in a dry cleaning machine having a cage provided with beaters, the loaded fabric is treated with steam while the cage is rotating unidirectionally and then with clean organic solvent while the cage is rotating alternately clockwise and anticlockwise, the solvent then being recovered for reuse. The steam is injected into the cage so as not to play directly on the fabric. Fresh solvent may be employed in a subsequent rinsing step.
Patent GB-983519-A (GB)
Title: Improvements in or relating to automatic voltage regulator circuits
Inventor: DAGLISH JAMES HILARY
IPC: H02P9/30
Filed: 1962-07-06
Abstract: 983,519. Automatic voltage control. MULLARD Ltd. Sept. 30, 1963 [July 6, 1962], No. 26037/62. Heading G3R. Regulation of the output voltage of a generator is effected by controlling the field current by the on-off control of a semi-conductor switch in series with the field winding, the switch having thyratron-type characteristics. In a self-excited alternator, the alternator field Lf is connected in series with a silicon controlled rectifier D8 across the alternator output L, N. Firing pulses for the rectifier D8 are obtained from a blocking oscillator comprising a transistor VT1 and a transformer T1, the base of the transistor having applied thereto a voltage which is the difference between a reference voltage developed by a Zener diode D4 and a hold off bias voltage developed by the resistor R3 and capacitor C2. The transistor collector voltage is developed across Zener diodes D5, D6, D7 whilst the voltage applied to the emitter of the transistor is dependent upon the alternator output and is derived by way of diode D1 and resistors R1, RV1. This signal is smoothed by capacitor C1 and applied to the emitter by way of a feedback winding S2 of the transformer T1 from a secondary winding S1 of which is taken the firing pulses for the rectifier D8. Temperature compensation may be provided by using a Zener diode D4 having a temperature responsive characteristic. For higher power alternators two or more silicon controlled rectifiers may be used in series and alternatively the field winding Lf may be the field of an auxiliary alternator acting as an exciter for the main alternator or the field may be energized from an external A.C. supply. At starting a low voltage rectified A.C. may be applied to the field winding by way of diodes D9, D10 to assist the residual magnetism thereof.
Patent GB-1339307-A (GB)
Title: Injection moulding machine
IPC: B29C45/17
Filed: 1971-04-19
Abstract: 1339307 Injection moulding machines K HEHL 19 April 1971 [25 April 1970] 26075/71 Heading B5A An injection moulding machine has mould clamping members 16, 34 axially displaceable on a strut 4 which can be pivoted through 90 degrees by a screw 36 moved by a driven but axially fixed nut 94. The screw and nut are mounted in a housing 30, 39 containing lubricant. The mould clamping members are moved axially by a screw 54 releasably coupled to a motor 21. An injection unit is mounted on mould axis a-a, and a second unit is mounted on a carriage movable parallel to axis a-a for injection into the mould transversely to axis a-a. A third, horizontal unit can be connected to the mould when it is pivoted into a vertical position. An ejection cylinder assembly 109 has quick disconnect couplings 127 for fluid lines 98 and 99, and also arms connected to piston-rod 118 to actuate microswitches in limit positions of the rod.