baber/WOPTO huggingface dataset:
Patent GB-1399204-A (GB)
Title: Triorganotin compounds
IPC: D06M16/00
Filed: 1973-09-11
Abstract: 1399204 Organotin compounds M & T INTERNATIONAL BV 11 Sept 1973 [11 Sept 1972] 42598/73 Heading C2J [Also in Division C3] Organotin carboxylates of the general formula wherein each R is C 1-20  alkyl, aryl, aralkyl, alkaryl or cyclo-alkyl which may be inertly substituted, Y is -H or an inert monovalent radical, m is 1 or 2 and n is 0 to 12 are prepared either by (a) reacting (R 3 Sn) 2 O or R 3 SnOH with an appropriate thiophene mono- or di-carboxylic acid at a temperature from ambient to 200‹ C. usually in an inert hydrocarbon solvent, or (b) reacting R 3 SnX where X is halogen with an alkali metal or alkaline earth metal salt of such an acid, usually by heating (or at ambient temperature) in a hydrocarbon diluent. The inert substituent in R, or the inert radical Y itself, may be halogen (especially bromine), alkoxy, aralkoxy, nitro, sulphonyl or alkanoyl and Y may also be a C 1-18  alkyl, cycloalkyl or aralkyl radical. In the examples, mono- and dicarboxylate compounds are prepared in which n is O, Y is -H or -Br and R is methyl, n-butyl, phenyl or cyclohexyl. The compounds have bactericidal and fungicidal properties and may be incorporated in PVC or other polymer compositions and anti-fouling marine paints or may be used to treat wool yarn.
Patent GB-972641-A (GB)
Title: Improvements in or relating to a process for the production of paper
IPC: D21H17/34
Filed: 1960-12-12
Abstract: Polymers of acrolein or of a  or b  substituted acroleins produced by known methods may be after-treated in the following ways:-  (a) Nitrogen-containing polymers can be obtained by treating these polymers with ammonia or an amine.  The Specification includes a list of suitable amines.  The polymers may be suspended in liquid ammonia or amine and stirred until it dissolves.  Excess amine may be distilled off, or the polymer precipitated by adding water.  (b) Water-soluble derivatives of the polymers may be prepared by suspending the polymer in an aqueous solution containing a solubilizing agent such as sulphur dioxide or sodium bisulphite. The reaction may be helped by stirring, heating, acid catalysts or swelling agents such as acetone and tetrahydrofurane. Alternatively, the polymer may be mixed and reacted with ammonium sulphite, ammonium bisulphite or a hydrocarbyl-substitution derivative of these. The Specification includes a list of suitable substituted ammonium salts. The reaction may be carried out in a liquid medium, e.g. water, aqueous alcohol, xylene, benzene, tetrahydrofurane or esters.  The products can be recovered by evaporation, distillation, crystallisation or extraction.  (c) Further modification after solubilization may be effected by reaction with hydrogen sulphide, alcohols, amines, salts of amines with organic or inorganic acids, or metal salts.  In examples: (I) an aqueous solution of a polyacrolein solubilized with sulphur dioxide is stirred while hydrogen sulphide is bubbled in, a precipitate forms, excess hydrogen sulphide is removed by bubbling in nitrogen, and the precipitate is separated by centrifuging; and (J) an aqueous solution of a polyacrolein solubilized with sulphur dioxide is mixed with isopropyl alcohol and refluxed.ALSO:The wet strength of paper is improved by adding an aqueous medium containing a water-solubilized polymer of an alpha, beta-ethyleniccally unsaturated aldehyde to paper pulp, e.g. at the beater, or finished paper and then drying the finished paper. The aldehyde may be acrolein, or an alpha- or beta-substituted acrolein (examples given in the Specification).  The polymer may be treated with ammonia or an amine before it is solubilized.  It may be solubilized by treatment with sulphur dioxide, sodium bisulphite, ammonium sulphite, ammonium bisulphite or a hydrocarbyl derivative thereof, e.g. a trihydrocarbylammonium sulphite or bisulphite.  The polymer may be treated after solubilization with hydrogen sulphide, an alcohol, an amine, a salt of an amine with an organic or inorganic acid, or a metal salt.  A salt of a polyvalent metal, e.g. aluminium sulphate or zinc nitrate may be added to the solution of polymer with which the paper or pulp is to be treated.  This system may also include emulsifying agents, water-dispersible binding colloids, plasticizers, anti-oxidants, dyes and fillers.  The treated paper may be used for facial tissue, hand towels, maps, filing cards, wrapping paper or containers.
Patent GB-1470739-A (GB)
Title: Thread delivery device for textile machines
IPC: B65H51/10
Filed: 1975-10-17
Abstract: 1470739 Thread delivery devices HEBERLEIN & CO AG 17 Oct 1975 [30 Oct 1974] 42689/75 Heading DID A thread delivery device for a textile machine comprises a delivery roller 1 with which a belt 3 mounted on two rollers 4, 5 cooperates through a predetermined angle of wrap A, rollers 4 and 5 being mounted on a pivotable support 8, a spring loaded pivoted arm 12 being provided to tension belt 3 through a guide element 13 when support 8 is pivoted away from delivery roller 1, the arrangement being such that guide 13 disengages the belt 3 when support 12 is in the operating position. The disengagement is brought about by an extension 12' of arm 12 which engages a fixed abutment 16. Arm 12 is shown pivoted to support 8, but may be pivoted to the fixed machine frame. Support 8 is loaded by a spring 10.
Patent GB-1236265-A (GB)
Title: Furnace gas removal method and apparatus
Inventor: WILLETT HOWARD PARKER
IPC: C21C5/40
Filed: 1968-09-12
Abstract: 1,236,265. Cleaning gases. CHEMICAL CONSTRUCTION CORP. 12 Sept., 1968 [20 Sept., 1967], No. 43526/68. Heading B1R. [Also in Division F4] Off-gases from a furnace, such as an oxygen-steel converter, are recovered from within a hood spaced above the gas outlet of the furnace through a tube assembly 9 connected through a separator 11 to a blower 14 and comprising three spaced-apart concentric tubes, liquid and an inert gas being fed from lines 17 and 21 respectively through the annular spaces between the tubes and injected into the innermost tube adjacent the inlet end thereof. The liquid is injected transversely of the gas entering the innermost tube and may be water or a light hydrocarbon oil. In operation, before off-gas is withdrawn, the apparatus is purged with the inert gas which may be steam or nitrogen. In a modified tube assembly two concentric tubes are employed, the inert gas being supplied through pipes extending through the annular space between the inner and outer tubes, liquid passing through the space around the pipes.
Patent GB-1355213-A (GB)
Title: Pulse circuit for an inductive load
IPC: H03K17/73
Filed: 1971-09-20
Abstract: 1355213 Switching circuits; communicating thyristors INTERNATIONAL BUSINESS MACHINES CORP 20 Sept 1971 [24 Dec 1970] 43654/71 Heading H3T A controlled rectifier for connecting a pulse source to an inductive load, e.g. a print hammer, is commutated by charging a capacitor during the pulse and discharging it resonantly via a further controlled rectifier, the first controlled rectifier and the inductive load. At the onset of a pulse from a transformer T1 a thyristor Q3 and selected ones of thyristors q1-qn are fired to energize corresponding print hammers l1-ln and to charge a commutating capacitor C2. At the end of the pulse a thyristor Q2 is fired. This connects the capacitor across Q3 to extinguish it and also connects the capacitor via D4 in series with the print hammers and their associated rectifiers to form a resonant circuit which rings and extinguishes the latter rectifiers. The pulse in the transformer is produced by firing a thyristor to energize the primary winding, a commutating circuit L1, C1 turning off the thyristor to terminate the pulse. The core of the transformer is reset by the current decaying through R1. A more rapid reset is effected by increasing R1 (Fig. 4, not shown) but this allows the capacitor to recharge excessively. To avoid this a controlled rectifier (QA) connects a resistor in parallel with R1 to allow the capacitor to discharge quickly to line voltage. Firing of the rectifier is effected by the voltage across a diode (DA) connected in series with the primary winding.
Patent GB-1099015-A (GB)
Title: Improvements relating to electrical voltage comparator circuits
Inventor: ROCKEY LESLIE GEORGE HENRY
IPC: H03K5/24
Filed: 1963-11-06
Abstract: 1,099,015. Transistor bi-stable circuits. BRITISH AIRCRAFT CORPORATION (OPERATING) Ltd. Nov. 3, 1964 [Nov. 6, 1963], No. 43840/63. Heading H3T. To compare two potentials applied at 3 and 4 as biasing potentials to opposite sides of an otherwise balanced bi-stable circuit comprising NPN transistors 1 and 2, the circuit is periodically connected to the supply by applying pulses to a transistor switch 8. The bi-stable circuit will assume one of its stable states according to the relative values of the two input voltages and remain in that state until the supply is disconnected. An output signal is derived from the collector of either transistor 1 or 2 representing the stable state assumed by the bi-stable circuit. The amplitude of a pulse at successive positions along its contour may be compared by the method with a voltage of standard amplitude, and the arrangement may be used as an analogue voltage offlimit detector in a D.A. converter.
Patent GB-1017678-A (GB)
Title: Improvements in or relating to motor vehicle suspension
IPC: B60G7/00
Filed: 1964-10-28
Abstract: 1,017,678. Road vehicle suspension. J. ULDERUP. Oct. 28, 1964 [Nov. 18, 1963], No. 43973/64. Heading B7D. Sound transmission in a vehicle suspension is suppressed by incorporating in an axle carrier, wishbone, half axle, torsion bar housing, strut or other suspension link connecting the wheels or axles of a vehicle to the body or frame, a channel or tubular section member 7 which is provided with a filling 8 (Fig. 3) and/or a covering 9 (Fig. 4) of open-celled synthetic plastics material or is formed of a polyester plastics material reinforced by glass fibres. The link shown terminates at each end in a spherical connecting part for mounting in a suitable housing with the interposition of rubber or other elastic material.
Patent GB-1170644-A (GB)
Title: Improvements in or relating to Electromechanical Shaping of Workpieces
Inventor: ZUBAK JAN
IPC: B23H7/26
Filed: 1967-09-27
Abstract: 1,170,644. Electro-machining or - polishing. VUMA, VYSKUMNY USTAV MECHANIZACIE A AUTOMATIZACIE. Sept.27, 1967 [Sept.29, 1966], No.44015/67. Heading C7B. An apparatus for electro-broaching or - polishing openings in a workpiece 20 using a tool electrode 22, which is separated from the adjacent surface to be worked in the workpiece opening by at least one insulating e.g. ebonite guide projection 24 or spacing cylinder (33, Fig.2) fitted to the electrode or by a flow of electrolyte over a suitably shaped electrode, comprises two spaced apart electrolyte chambers 34, connected to electrolyte inlet and outlet conduits 40, 39 respectively, and inter-connected by the workpiece, with a control mechanism, e.g. a slide block 30 and a sheathed pull rod 27, attached to the electrode for moving the electrode into engagement. The cross-section along the electrode may vary to enlarge a circular opening or form a rectangular opening from a circular one.
Patent GB-1125315-A (GB)
Title: Improvements in or relating to self-threading nuts
IPC: F16B25/00
Filed: 1965-10-20
Abstract: 1,125,315. Nuts. REPUBLIC INDUSTRIAL CORP. 20 Oot., 1965 [20 Oct., 1964], No. 44461/65. Heading F2H. [Also in Division B3] A self-threading nut for assembly on to a tapered unthreaded stud has an elongated aperture with a major axis 2 and minor axis 3, the wall of the aperture having minor unthreaded portions 24 at the intersections with the axis 2, and major threaded portions 22 at the intersections with the axis 3 with a plurality of common thread segments 26 each having a root which intersects the crest of the segment in proximity to the intersection of the axis 2 with the aperture wall, and a progressively diminishing depth in both directions from a maximum, at approximately the centre of the segment to zero at each end.
Patent GB-1535644-A (GB)
Title: Overhead projector
IPC: G03B21/64
Filed: 1977-10-26
Abstract: 1535644 Overhead projectors KEIHOKU SEIKI Mfg CO 26 Oct 1977 44467/77 Heading G2J An overhead projector for front and back projection comprises a body 1 housing a lamp and condenser (not shown). A cross-carriage 2 is movable in two directions at right angles and carries a tray 3 with apertures in which slides are inserted. Any slide can be brought to the projection position below an objective 10 and a 45 degree mirror 11  for projection on a screen. The tray is symmetrical so that it can be reversed for projection on a screen viewed from the back or the front.
Patent GB-1204137-A (GB)
Title: Improvements in or relating to tapered roller bearings
Inventor: MCNICOLL DAVID
IPC: F16C19/38
Filed: 1967-09-29
Abstract: 1,204,137. Bearings. TIMKEN ROLLER BEARING CO. 29 Sept., 1967, No. 44559/67. Heading F2A. A roller bearing is furnished with two rows of inwardly-tapering rollers 18, 19, a common inner race 11 having two raceways 12, 14 for said rollers, and a pair of outer races 21, 22 with their broadest side-faces 25 abutting each other, the rollers 18 being provided with a conical cage 13 of conventional kind whereas the rollers 19 are provided with a sheet-metal cage 28 of the comb type, this cage being described in Specification 1,204,136. The number of rollers 19 is less than that of the rollers 18 in that the rollers 19 are subjected to a smaller load. The race 21 is subjected to axial thrust in an outward direction after the rollers 18 have been inserted therein to facilitate subsequent assembly of the rollers 19 within the race 22 and to effect permanent circumferential stressing thereof, and thereby minimize slackness in the bearing to any desired extent.
Patent GB-1455799-A (GB)
Title: Telecommunication system using tdm switching
IPC: H04Q11/04
Filed: 1974-10-15
Abstract: 1455799 Automatic exchange systems INTERNATIONAL STANDARD ELECTRIC CORP 15 Oct 1974 [19 Oct 1973] 44568/74 Heading H4K In a TDM exchange when every supervisory circuit, e.g. registers and junctors, has its own permanently alloted time slot, calling lines are sought during a particular time slot of each frame and a calling line found during one frame is connected to a free register in the next frame. The register is supplied with the caller's identity and advises a control that dialling tone should be sent during the time slot of the register over a common highway. Once the register is provided with the called party information-this may be a demand for an exchange line of another PAX subscriber-it tests the availability of the wanted party and advises the control accordingly. The latter chooses a free junctor, applies ringing current, ringing tone or busy tone appropriate during the time slot of the junctor and frees the register. The calling and called party identities are retained in control's memory for opening line gates during the junctor's time slot PAM is used.
Patent GB-1048863-A (GB)
Title: Plasticizers and plasticized compositions
IPC: C08L23/08
Filed: 1963-11-13
Abstract: The invention comprises a liquid copolymer of propylene, or a mixture of propylene and ethylene, and ethyl acrylate, methyl acrylate, or methyl methacrylate said copolymer having a viscosity in the range of from H to Z10 on the Gardner-Holdt scale (equivalent to 2 to 1066 poises), an acid number which does not exceed 3, a molecular weight (ebulliometric) between 500 and 1500, and a molar ratio of olefinic monomer to acrylic monomer ranging from 1 to 3, in which ratio the upper limit is a fuction of molecular weight as expressed by the equation:  Moles of olefin/mole of acrylic monomer= <FORM:1048863/C3/1> where X = 1 + 0.75 x/100 for ethyl acrylate and methyl methacrylate and X = 1.25 + x/100 for methyl acrylate, x being the percentage by weight of ethylene in the olefinic monomer. The products are used as plasticizers for vinyl chloride resins.
Patent GB-1065316-A (GB)
Title: Steering wheel housing for road vehicles
Inventor: BAKER ALFRED DICKENS
IPC: B62D1/16
Filed: 1962-11-27
Abstract: 1,065,316. Motor vehicle controls. JOSEPH LUCAS (INDUSTRIES) Ltd. Oct. 22, 1963 [Nov. 27, 1962], No. 44847/62. Heading B7H. [Also in Division F2] A motor vehicle steering column housing comprises a casing 121 enclosing a frame which is secured to the bulk head of the vehicle and supports a steering wheel 123, a steering shaft 125, and a brake pedal 131 for actuating a master cylinder 130 fed by a reservoir 129 positioned in the housing so that the fluid level is visible to the driver. The steering wheel is rotatably mounted on a tube 122 and is connected to the steering shaft 125 by gearing 124 permitting longitudinal adjustment of the tube 122 and the steering wheel. A panel 126 supported within the steering wheel 123 by the tube 122 carries a choke control and electrical switches having leads extending through the tube 122. The casing 121 forms a panel 127 for instruments 128 including a speedometer, an ammeter, and oil and fuel gauges. The housing also carries a hand brake 132, a throttle pedal 133 and a gear lever 134, and may also support a pedal, cylinder and reservoir for clutch operation. A flasher unit, a voltage regulator and a fuse box may be housed within the casing.
Patent GB-1434293-A (GB)
Title: Leaf stripper
IPC: A01D33/02
Filed: 1973-09-26
Abstract: 1434293 Leaf stripper H VISSERS BV 26 Sept 1973 [28 Sept 1972] 44978/73 Heading A1F A device for removing the leaves from tubers already extracted from the soil comprises a continuous sieve belt 3 which transports the tubers from the digging apparatus, and a second belt 16 of similar construction passing around two rollers 5 and 17, the former roller located behind and slightly below the rearmost portion of belt 3 and the latter, mounted pivotally to the frame 1 of the device and maintaining tension in the belt 16 by means of a spring 18. Roller 5 cooperates with strip shaped guide members 8, the action of which is to allow the tubers to pass through to a third belt 15, whilst retaining the leaves between members 8 and 16. The leaves are then stripped from the tubers between belt 16 and a roller 6 attached to the frame.
Patent GB-1143209-A (GB)
Title: Method of manufacturing an electronic component
IPC: H01G2/14
Filed: 1966-02-21
Abstract: 1,143,209. Capacitors; spark gaps. GLOBEUNION Inc. 21 Feb., 1966 [26 April, 1965], No. 45059/68. Divided out of 1,143,208. Headings H1M and H1X. The disclosure is substantially the same as in Specification 1,143,208, but the claims are directed to the method of forming a spark gap during manufacture of an electrical component comprising severing a conductor at a position intermediate two positions where it is supported on a non-conducting base.
Patent GB-1271770-A (GB)
Title: Metal composites and production thereof
IPC: B23K20/08
Filed: 1970-09-22
Abstract: 1,271,770. Welding by pressure. E. I. DU PONT DE NEMOURS & CO. 22 Sept., 1970 [29 Oct., 1969], No. 45059/70. Addition to 1,248,794. Heading B3R. A metal composite comprises layers of aluminium and steel and an interlayer of ferritic stainless steel sandwiched between and bonded to the layers of aluminium and steel over at least 90% of each interface, the aluminium having a yield strength up to 17,000 p.s.i. and the ferritic stainless steel a yield strength up to 60,000 p.s.i. before bonding, the bond between the aluminium and ferritic stainless steel being formed by an explosion bonding process and comprising at least 70% direct aluminium to ferritic-stainless-steel bond. The invention is particularly applied to the formation of transition joints 3 for use in electrolytic cell electrode hanger assemblies in which e.g. an aluminium anode rod 1 is fusion welded at 4, 5 to the aluminium layer a and a steel anode support 2 is fusion welded at 6, 7 to the steel layer c. Such a transition joint eliminates the necessity for explosion bonding in situ. The three layers of the composite may be bonded simultaneously in an explosion bonding process at a collision velocity of 2500 to 3400 metres/sec and an impact angle of 14 to 24 degrees preferably below 20 degrees, in which case the interface between the aluminium and stainless steel layers is straight and that between the steel and stainless steel layers is wavy. Preferably however the interlayer is first explosion bonded to the steel layer using a collision velocity range of 1800 to 3200 metres/sec and the aluminium layer bonded in a subsequent step, the aluminium/interlayer bond zone then being wavy. The stainless steel interlayer may be bonded to the steel layer by roll bonding. The steel layer is preferably a low carbon steel (less than 0À3% C by weight), the aluminium layer preferably contains less than 2À1% by weight of magnesium plus silicon, and the stainless steel layer which is generally of minimum thickness 0À5 mm is preferably in annealed condition prior to bonding. Detailed examples are given.
Patent GB-1464749-A (GB)
Title: Process of hardening a porous shaped body
IPC: C08L61/10
Filed: 1974-10-18
Abstract: 1464749 Hardening porous-shaped bodies KERNFORSCHUNGSANLAGE JULICH GmbH 18 Oct 1974 [7 Dec 1973] 45244/74 Headings C3R and C3C A process of hardening a shaped porous body containing carbonaceous material bound by a synthetic novolak resin comprises exposing the body to formaldehyde vapour at a temperatureof not less. than 100 C. and not more than 200 C. for a period of time such that the formaldehyde vapour penetrates into the body and provides cross-linkage in the resin to harden the body. The body may be subjected to at least a partial vacuum before or during exposure to formaldehyde vapour. The novolak is preferably a phenol-formaldehyde resin. The carbonaceous material may be lampblack, powdered petroleum coke or electrographite, but is preferably artificial graphite. In the examples porous cylindrical bodies are made by coating finegrained graphite with an emulsion of a novolak resin and drying and pre-shaping the mixture toform the porous bodies which are hardened either at atmospheric or superatmospheric pressure at 110 C. with gaseous. formaldehyde, or under vacuum at 160-180 C. using formaldehyde vapour generated from paraformaldehyde distributed on the base of the vacuum vessel.