baber/WOPTO huggingface dataset:
Patent GB-948372-A (GB)
Title: Chlorinated polymers
Inventor: TAYLOR JOHN HEYWARD
IPC: C08F8/20
Filed: 1961-10-18
Abstract: Polyvinyl chloride and copolymers of vinyl chloride and vinyl acetate containing at least 70% by weight of vinyl chloride are chlorinated by introducing chlorine gas into aqueous dispersions of the polymers in the presence of oxygen.  The oxygen may be supplied as molecular oxygen or provided by a compound which liberates oxygen under the reaction conditions, e.g. hydrogen peroxide, alkyl hydroperoxides and dialkyl peroxides such as tertiary butyl hydroperoxide and di-tertiary butyl peroxide. The aqueous phase may contain hydrochloric acid, surface active agents, alkali metal and alkaline earth metal salts, e.g. sodium chloride, potassium chloride and calcium chloride, and swelling agents for the polymer, e.g. chloroform.  The oxygen or oxygen-liberating compound may be added intermittently or continuously, and the reaction zone may be irradiated with actinic radiation. In examples the process of the invention is composed with processes in which acyl peroxides such as benzoyl and lauroyl peroxides are used.
Patent GB-997019-A (GB)
Title: Circuit microelement
IPC: H01C7/00
Filed: 1961-10-18
Abstract: An alloy solder used in making electric circuit elements (see Division H1) consists of 60 parts by weight tin, 37 parts lead and 3 parts silver.
Patent GB-1374269-A (GB)
Title: Rake wheels
IPC: A01D78/00
Filed: 1971-11-24
Abstract: 1374269 Hay making C VAN DER LELY NV 24 Nov 1971 [25 Nov 1970] 37482/73 Divided out of 1374268 Heading A1F A rake wheel for the haymaking machine described in Specification 1374268 has tines 16 supported on a central hub 22 solely by the clamping action of profiled plates 14 between which the tines are also clamped. The plates clamp on to the hub supported on a stub shaft 8, and may be reinforced by radially, extending stiffening ridges 21. The tines are formed in pairs and extend through a felly 17 as shown in Figure 2. In embodiments the hub may comprise two spaced ball bearings and the tines may be formed singly with their inner ends being bent to bear against one another and against a stop defined by the profiles of the plates.
Patent GB-961201-A (GB)
Title: Improvements in or relating to electrical projectile priming mechanisms
IPC: F42C11/06
Filed: 1960-11-02
Abstract: 961,201. Electric primers. RHEINMETALL G.m.b.H. Nov. 2, 1960 [Nov. 6, 1959], No. 37716/60. Heading F3A. An electrical priming mechanism for selfpropelled missiles is divided into two units, one being housed within the missile and comprising a propellant primer 8, a warhead primer 15 and circuitry so designed that an alternating waveform signal induced in a coupling coil 4, when the missile is within the launching weapon, is rectified by rectifier 5 into positive half-waves which charge capacitor 6 and by rectifier 7 into negative half waves which actuate the propelland primer 8. The second unit, shown in block I and situated in the launching weapon, comprises an impulse generator 1 connected in parallel, via rectifier 22, to a resonant circuit comprising a capacitor 2 and coupling coil 3. On acceleration of the missile, switch 9 is closed and there occurs transfer of electrical energy from capacitor 6 to capacitor 10. This transfer is of short duration since the resonant circuit comprising the capacitors 6, 10 and inductance 11 is tuned for high frequency operation. Capacitor 10 discharges slowly via resistance 13 into capacitor 14, which can only fire the warhead primer 15 on reaching its full priming potential, the firing occurring on impact when nose halves 16, 17 are forced into contact. The priming mechanism includes components to prevent accidental ignition of the primers. For example, if the nose halves 16, 17 are in contact prior to firing, the capacitor 6 is short-circuited via these nose halves and rectifier 20. Provision is also made for external testing of the mechanism.
Patent GB-343637-A (GB)
IPC: B41F1/28
Filed: 1929-12-09
Abstract: 343,637. Printing-machines. SPIESS, G., 78, Zschocherschestrasse, Leipsic, Germany. Dec. 9, 1929, No. 37751. Convention date, Dec. 17, 1928. Addition to 315,873, [Class 100 (i), Feeding and delivering webs &c.]. Classes 100 (1) and 100 (ii).] Delivery apparatus ; gripper mechanism.-The combined suction and gripper finger described in the parent Specification is constructed from two strips of material 1 welded, soldered, or otherwise joined along their edges to two narrow pieces of material. The strips 1 are preferably of spring steel and the narrow members 2 in the form shown consist of piano wires soldered or welded to the strips which, however, may have their side edges folded over the wires. The finger is slidable in transversely adjustable mounting bracket 7 and is held in any required position by a clamping-member 9 and a clamping-screw 10. Both ends of the finger may be arranged perpendicularly to the main part, the suction orifice 4 being formed in one end part. The other end part 5 is connected to the suction pipe and also serves as a stop to limit the movement of the finger in the bracket 7.
Patent GB-1105708-A (GB)
Title: Method of coating metal strand
Inventor: BAESSLER KARL HORST
IPC: C23C2/38
Filed: 1965-09-06
Abstract: <PICT:1105708/C6-C7/1> A strand, e.g. copper or steel wire, is coated with e.g. aluminium, aluminium-silicon alloy or zinc by passing it through a bath of the molten metal having die 57 to the exterior of which a gas pressure is applied and regulated to control the thickness of the coating.  The gas, which may be hydrogen, helium, argon or nitrogen is supplied through a pipe 63a into a tube 62 the lower end of which extends into a cooling water bath.  The head 66 is adjusted to control the pressure of the gas on the die.  A cooling bath, the level and temperature of which is automatically controlled, is described Fig.4 (not shown).  Alternatively the wire may be cooled in a continuously flowing water column Fig.5 (not shown).  The die may be constructed to float Fig.2 and 3 (not shown) and may be made of tungsten, silicon carbide, aluminium oxide or stainless steel. The surface of the wire may be prepared by passing through a lead bath, water bath, H Cl bath, water, anodic, cathodic, and anodic H2 SO4 baths, ultrasonic bath, and then heated in a hydrogen atmosphere by passing an electric current through it.
Patent GB-1412906-A (GB)
Title: Control systems
IPC: B65G43/00
Filed: 1973-08-16
Abstract: 1412906 Conveyor control system: conveyors JERVIS B WEBB CO 16 Aug 1973 [17 Aug 1972] 38711/73 Headings B7N and B7L  In a control system for a conveyor of the power and free type in which a primary stop 22 is provided at a work station 20 at which a carrier 10-1 is stopped by disengagement of its driving member 26 from a pusher 16 and in which subsequent carriers 10-2, 10-3, etc., are stopped by engagement with the stationary carrier ahead and wherein carriers are released singly from the work station so that all carriers stopped in advance thereof are moved up one position, the number of carriers to be so moved is limited by the provisions of a further stop 32 which controls the number of carriers stopped immediately in advance of the station. The carrier stop 32 is opened by solenoid 34 when sensing device 36 detects that only two carriers are left in advance of the work station 20 and is closed when carrier sensing elements 48 and 50 detect when a third and forth carrier have been added to those waiting at the station. By this means only a maximum of six carriers have to be moved forward one position when a carrier is released by stop 22. In a second arrangement, Figs. 3 and 4 (not shown), counter means are provided to open stop 32 when n carriers have left the work station and to close the stop when it has released n carriers.
Patent GB-1048329-A (GB)
Title: Production of aromatic ethers
Inventor: LONG FRANK
Filed: 1964-09-23
Abstract: An aromatic ether is prepared by reacting an aromatic compound having a replaceable halogen atom as a nuclear substituent with an alkali metal alcoholate in the presence of a polar organic solvent, e.g. an N-alkylated carboxylic acid amide so that the halogen atom is replaced with an aliphatic-oxy group.  The aromatic compound may also contain a group that enhances the mobility of the halogen atom, e.g. a nitro group such as ortho- or para-halogen-substituted nitrobenzene.  In an example there is produced p-n-heptyloxy-nitrobenzene by the addition of a solution of sodium n-heptoxide in n-heptanol to a solution of p-chloronitrobenzene in dimethylformamide.
Patent GB-1163745-A (GB)
Title: Electrolytic Deposition of Nickel
Inventor: FLINT GEORGE NORMAN
IPC: C25D17/10
Filed: 1966-08-31
Abstract: 1,163,745. Electro-deposition of nickel. INTERNATIONAL NICKEL Ltd. Aug.25, 1967 [Aug. 31, 1966], No. 38867/66. Heading C7B. Nickel is electro-deposited from an aqueous electrolyte containing one or more nickel salts using as soluble anode material carbonyl nickel pellets containing at least 0À005% by weight sulphur. The sulphur content may be as high as 0À1% but preferably is between 0À012 and 0À014%. Typically the pellets are supported in a titanium basket surrounded by a woven anode bag. The plating bath may be of the Watts type to which brightening and levelling agents are added, or may be of the sulphamate, all-chloride or all-sulphate type. The pellets are preferably produced by introducing a thermally decomposable sulphur-containing gas into the nickel carbonyl decomposer. The sulphurcontaining gas may be hydrogen sulphide but preferably is carbonyl sulphide as in Specification 1,163, 746. Sulphided pellets obtained by subjecting carbonyl nickel pellets to heating in a sulphurcontaining gas are unsatisfactory as anode material, forming large amounts of anode sludge.
Patent GB-908797-A (GB)
Title: Improvements in and connected with water softening appliances
IPC: C02F1/68
Filed: 1958-12-03
Abstract: 908,797. Water-softening. RAINSFORD & LYNES Ltd., and LYNES, R. K. March 3, 1960 [Dec. 3, 1958], No. 38997/68. Class 46. A removable container, for the accommodation of a charge of water-softening agent, comprises a hollow cylinder 3 having an externally screw threaded union member 6 which can be engaged with the complementary parts of a union fitting carried by associated parts of the appliance. The complementary union fittings at the inlet end of the container consist of an internally threaded hexagon nut 7 captively mounted about a neck 8 defined between an annular flange 9 and an enlarged part 10 of the tubular pipe head of a bracket pillar 11 the lower end of which pillar is flanged at 12 for mounting the bracket cantileverwise on a base board 13. A rubber sealing washer 14 is interposed between the abutment faces of the male union member 6 and the flange 9. The pipe head 10 has screw connection with an inlet tap 15 and the pipe head of the bracket may be furnished with the nipple 16 disclosed in Specification 908,796. An outlet pipe 17 has a similar construction to the union already described and is clamped adjacent the flanged end 16 thereof upon the head 18 of a second cantiliever bracket 19 which extends transversely to the outlet pipe. The outlet pipe 17 is supported by a further bracket 24 mounted cantilever-wise on the base board 13 and by slackening the two bridge pieces 20 and 25 the outlet pipe can be swung from one side to the other of the container 3. The brackets 11 and 19 are capable of limited angular movement on the base board so a limited amount of relative movement is permitted between the flanged parts 9 and 16 whereby the container 3 can be withdrawn from its position between the ends of the inlet and outlet pipe terminations for servicing purposes. Preferably, the brackets 11 and 19 and pipes 10 and 17 are mounted with the flanged ends 9 and 16 spaced slightly further apart than the overall length of the container and fittings so that the brackets will automatically tend. to return to their normal position when the nuts 7 are slackened and thus permit ready removal of the container.
Patent GB-1456053-A (GB)
Title: Anti-fouling paint
IPC: A01N37/52
Filed: 1974-09-06
Abstract: 1456053 Antifouling paints KOA SOAP CO Ltd 6 Sept 1974 [12 Sept 1973] 39063/74 Heading C3P [Also in Divisions C2 and C4] An antifoaming paint composition contains an amidine compound represented by the general formula wherein R is an alkyl or alkenyl group having 11 to 17 carbon atoms, or an acid addition salt thereof. Suitable amidine compounds or salts thereof are lauramidine, myristamidine, palmitamidine, stearamidine, oleamidine and coconut-alkanoamidine and salts thereof. Suitable acids for forming the salts are hydrogen chloride, sulphuric acid, thiosulphuric acid, sulphurous acid, p-toluenesulphonic acid, oxalic acid and citric acid. In the examples the compounds are incorporated into paints comprising titanium white, rosin gum, vinyl resin, methyl-isobutylketone, xylene, aluminium stearate, red iron oxide, copper suboxide, boiled linseed oil, solvent naphtha, chlorinated rubber, rosin and toluene. The vinyl resin is a copolymer of vinyl chloride and vinyl acetate and the chlorinated rubber is a chlorinated isoprene.
Patent GB-924114-A (GB)
Title: Improvements in variable speed pulley mechanism
Inventor: FLANAGAN THOMAS LEONARD
IPC: F16H9/12
Filed: 1961-11-02
Abstract: 924,114. Expanding-wheel gear. KILLING- WORTH ENGINEERS Inc. Nov. 2, 1961, No. 39326/61. Class 80 (2). Expanding-pulley gearing for industrial sewing machines comprises an electric motor shaft 10, Fig. 2, fast upon which is a pulley 16 connected by a V-belt 70 to a multiple pulley 40, Fig. 4, having two outer fixed flanges and an axially slidable inner flange 43, a second V- belt 71 connecting the multiple pulley to a second multiple pulley 39 of similar construction in turn drivingly connected by a third V- belt 72 to a driven double pulley 17 coaxial with and rotatable upon the hub of the pulley 16, the multiple pulleys rotating upon axles carried at the ends of arms 32, 33 connected by a strut 49 and together turning upon a pivot pin 26 to vary the gear ratio when a hand wheel 67, Fig. 3, having a screw-and-nut connection 57 with a control rod 58, Fig. 4, is rotated, a bracket 21 carrying the pivot pin 26 and itself turning at one end 22 in a casing 20 when a nut 25 at the other is slackened to permit sliding of an associated bolt through an arcuate slot 23 in the casing. The tension in the V-belts 70, 72 can thus be adjusted. One end of the strut 49 co-operates through a slot 50a with a bolt on the arm 32 and permits adjustment of the tension in the belt 71 between the multiple pulleys by slackening the associated nut of pointer 68 fast with the strut 49 indicates the selected ratio.
Patent GB-1260031-A (GB)
Title: Improvements in or relating to hand pads
Inventor: OSWIN CHARLES ROBERT
IPC: A47L25/08
Filed: 1969-08-06
Abstract: 1,260,031. Packaging pads. BRITISH CELLOPHANE Ltd. 6 Aug., 1970 [6 Aug., 1969], No. 39428/69. Heading B8C. [Also in Division A4] A hand pad 4 impregnated with a fluent material and enclosed within an envelope of impervious sheet material, e.g. polyethylene, is manufactured by attaching a series of pads to a travelling web 1 of heat-sealable flexible sheet material, impregnating the pads with fluent material from a printing applicator 5 before, during or after attachment to the web, applying a covering layer of sheet material over the pads, securing said layer to the web by transverse heat seals 10, thereby forming a series of connected envelopes each containing one pad, forming a slit opening or potential opening 13 adjacent to one edge of the envelope and severing individual envelopes from the web. The covering layer is preferably formed by folding over each longitudinal edge 6, 7 of the web 1. Each envelope may be turned inside out to form a mitten with the pad attached to the outside thereof (see Division A4).
Patent GB-915177-A (GB)
Title: Improvements in or relating to electric induction meters
IPC: G01R11/36
Filed: 1960-11-21
Abstract: 915,177. Electricity meters. COMPAGNIE DE CONSTRUCTION ELECTRIQUE. Nov. 21, 1960 [Dec. 4, 1959; Sept. 29, 1960], No. 39924/60. Class 37. In an induction-disc type electricity meter comprising two magnetic circuits disposed one on either side of the induction disc 8 (Fig. 3), one circuit 2 is M-shaped and carries a voltage coil 3, while the other is U-shaped and has a single current coil 6 disposed round the base limb, linking the two poles 5 of the U-shaped magnetic current circuit and surrounding a parallel faced additional gap 10 in the base limb. By displacing a magnetic member 11 (Fig. 3), in this gap, variation of driving torque may be obtained without modification in the phase of the current flux with respect to current for non- inductive loads. By displacing a non-magnetic conducting member 12 in the gap, phase shift of current flux with respect to current, without variation of the flux may be obtained so that adjustment for inductive loads may be made. Slight shunting of the voltage flux for adjustment with low loads is possible by displacing the magnetic member 18 pivotally attached to the magnetic member 9.
Patent GB-1456490-A (GB)
Title: Process for producing thiazoles anchor
IPC: C07D277/22
Filed: 1975-10-02
Abstract: 1456490 Production of thiazoles NISSAN CHEMICAL INDUSTRIES Ltd 2 Oct 1975 [3 Oct 1974 16 Oct 1974] 40336/75 Heading C2C A process for producing 2-methylthiazole or 2,4-dimethyl thiazole comprises reacting diethylamine or ethylidene-ethylamine (for 2-methylthiazole) or diisopropylamine (for 2,4-dimethyl thiazole) with sulphur in a reaction vessel having a layer of carbon formed on the inner surface thereof. The carbon layer can be formed for example by feeding a hydrocarbon and oxygen or sulphur into the reactor and reacting them so that a carbon layer is deposited. The reaction temperature is preferably in the range of 400 to 550 C. and the equivalent ratio of sulphur to diethylamine is preferably in the range of 0À8 : 1 to 1À4 : 1.
Patent GB-1084599-A (GB)
Title: Process for the preparation of unsaturated aliphatic nitriles
IPC: B04B1/14
Filed: 1965-09-22
Abstract: Unsaturated nitriles are made by reacting C2- 4 olefins with HCN and O2 at elevated temperature in presence of Pd, Rh, Ru, Pt, Au, Cu or their compounds.  Specified products are acrylonitrile, methacrylonitrile, crotononitrile and isomeric cyanobutenes; saturated nitriles also form as by-products.
Patent GB-876029-A (GB)
Title: Improvements relating to safety cut-off valves
Inventor: BURKE PATRICK HERBERT
IPC: F23Q9/12
Filed: 1958-12-16
Abstract: 876,029. Valves. GAS COUNCIL. Feb. 2, 1960 [Dec. 16, 1958], No. 40571/58. Class 135. In a safety cut-off valve for gas burners in which a spring-closed valve member 7 is opened and held open by a bi-metal strip 14 acting through a push-rod 15 the possibility of the valve failing to close due to dirt &c. where the push - rod passes through a close-fitting bore in the housing is avoided by the provision of a bush 16 which is a close fit on the push-rod to prevent leakage and is urged by a spring 18 into engagement with the end of a fixed bush 19 which has substantial clearance around the push-rod. The spring 18 is weaker than the spring 9 so that should the bush seize on the push-rod it can be carried upwardly to allow the valve to close. Any leakage past the bush 16 escapes at 12a where it is ignited.
Patent GB-1018187-A (GB)
Title: Improvements in or relating to methods of producing 2,6-dichlorobenzonitrile
IPC: C07C255/49
Filed: 1962-10-26
Abstract: 2,6-Dichlorobenzonitrile is prepared by treating b  - 2,6 - dichlorobenzaldoxime with an aqueous solution of a base.  The base may be sodium or potassium hydroxide, the reaction temperature may be 40-80 DEG  C., and about 2 mols. of base per mol. of aldoxime may be used. Examples are given.  The process may be effected continuously by feeding the reagents to a vessel and filtering off the water-insoluble product as it is formed.
Patent GB-967169-A (GB)
Title: Improvements in or relating to binary iron-aluminium alloys
Inventor: HOWARD JEAN BERYL
IPC: C22C33/02
Filed: 1959-12-01
Abstract: A binary Fe-Al alloy containing up to 16% Al is produced by reducing the iron powder in hydrogen, mixing the deoxidized powder with aluminium powder, compacting the mixture and sintering in a dry inert atmosphere such as hydrogen or vacuum. The iron is deoxidized in hydrogen with a dew point below -40  DEG C. at 350-650  DEG C. and sintering is effected in the same atmosphere at 1200-50  DEG C. below the melting point of the alloy.  The deoxidized iron powder may be ground in an inert atmosphere before mixing with the aluminium. Compacts containing under 7% aluminium can be cold rolled after sintering but those containing 7-16% aluminium are recompacted and annealed at 1350  DEG C. after sintering.
Patent GB-1284969-A (GB)
Title: Improvements in controls for valves
IPC: G05D16/06
Filed: 1970-08-26
Abstract: 1284969 Fluid-pressure servomotor systems HAYDAY VALVE & EQUIPMENT CO (PTY) Ltd 26 Aug 1970 [29 Aug 1969] 40989/70 Heading G3P A valve has a diaphragm closure member 8, Fig. 1, controlled by an auxiliary valve 11 which regulates the flow through an annular space between a tapered member 14 and an aperture in the diaphragm. A member 13 having a frictional fit on the stem of the auxiliary valve allows the diaphragm to lift to relieve surges of fluid, the member 13 being restored to its original position by engagement with a cap 6 next time the valve is operated normally. The member 13 may be omitted and the auxiliary valve 11 may be formed separately from the tapered member as shown in Fig. 3. In further modifications, the auxiliary valve co-operates with a second aperture in the diaphragm, instead of with a by-pass passage 10 or the diaphragm is of inverted cup shape to cooperate with an inlet portion of reduced diameter, the tapered member co-operating with an aperture in a downwardly depending cylindrical portion at the centre of the diaphragm.
Patent GB-1167850-A (GB)
Title: Apparatus for Processing Plastifiable Masses.
IPC: B29C48/38
Filed: 1968-08-29
Abstract: 1,167,850. Pugmills. WERNER & PFLEIDERER. 29 Aug., 1968 [21 Oct., 1967], No. 41379/68. Heading B1C. [Also in Division B5] A combined mixing and extrusion moulding machine comprises a pair of co-rotating and intermeshing screws in a housing 1, which are fed via openings 3a, and a pair of contrarotating and intermeshing screws in a housing 2 fed at either end with material from housing I via channels 8 and communicating centrally with an extrusion orifice. The screws in housing 1 are driven at opposite ends via gear trains 13, 14 and shear pin couplings, but by the same motor 11, and the non-driven ends are supported, one in a radial bearing and the other in a radial and axial bearing, these bearings being mounted on the gear boxes as shown. The screw whose non-driven end is mounted in the radial and axial bearing may be axially displaced. Channels 8 lead from a kneading zone 4 and flow therefrom may be adjusted by means of a throttle 7. Generally the screws in housing 1 are rotated more rapidly and are of smaller diameter than those in housing 2. It is stated that, e.g. in the extrusion of polymerisation melts only the screws in housing 2 may be used. A pressure gauge 9 is provided, by reference to which, the rate of flow of material in housing 1 may be controlled.