baber/WOPTO huggingface dataset:
Patent GB-968677-A (GB)
Title: Improvements in or relating to transistor multivibrators
Inventor: TAYLOR JAMES GEORGE
IPC: H03K3/282
Filed: 1960-06-28
Abstract: 968,677. Transistor oscillator circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 16, 1961 [June 28, 1960], No. 22665/60. Heading H3T. A multivibrator comprises a pair of crosscoupled transistors VT1, VT2 having collector resistors R3, R4 connected to a first supply terminal; cross-coupling capacitors C1, C2 extending between the base of each transistor and a junction point in the collector circuit of the other between its collector and collector resistor; and a current responsive output device directly connected in series with the collector-emitter path of one of the transistors at a point between the junction point and the other supply terminal, whereby the input current path of the output device is traversed by the transistor's emitter-collector current, including the capacitor charging current, so that the charging current is ineffective to distort the wave shape of the output. As described, the output device may be a further transistor VT3 connected on the emitter circuit of VT2, Fig. 1, or a ferrite cored transformer in its collector circuit, Fig. 2.
Patent GB-850937-A (GB)
Title: Device for the continuous measurement of the thickness of a strip
IPC: G01B5/06
Filed: 1957-07-17
Abstract: 850,937. Calibrating linear-dimension gauges. SANDVIKERS JERNWERKS A.B. July 17, 1957 [July 18, 1956], No. 22707/57. Class 106 (2). [Also in Group XXII] A device for the continuous measurement of strip thickness comprises parts 16, 17 carrying measuring means 22, 23, the parts 16, 17 being movable angularly in relation to the longitudinal direction of the strip 29 passing the device, the parts 16, 17 also being movable between two positions, in one of which they are placed for measurement, and being placed for calibration by a slip gauge 28 in the other. The feelers 22, 23 are mounted on arms 16, 17 hinged at 18 and connected by spring strips 11 to a movable platform 12. The device is shown in an intermediate position, in which the arms 16, 17 are held apart by a spacing device 26. If the carriage is moved to the right, the arms being urged together by a spring 19, when rollers 27 move off the right hand end of the spacer 27, the device then being used for measurement. If the carriage is moved to the left, the feelers are brought into contact with a slip gauge 28 and the indicator 24 can then be adjusted to give the required reading. The measuring apparatus may be of any well-lmown type, and the device may be used for controlling the thickness of strip produced by a rolling mill. Specifications 367,700, 596,641 and U.S.A. Specification 2,746,424 are referred to.
Patent GB-1342835-A (GB)
Title: Process for the neutralization of rearrangement reaction products and process for the continuous isolation of dihydric phenols
IPC: C07C37/68
Filed: 1971-04-19
Abstract: 1342835 - Preparation of dihydric phenols SIGNAL CHEMICAL CO 19 April 1971 [5 March 1970 (2)] 22738/71 Heading C2C In a process for producing a dihydric phenol by the re-arrangement of a dialkylbenzenedihydroperoxide wherein a ketone is a byproduct of the re-arrangement, the ketone is separated from the dihydric phenol product by feeding a neutralized re-arrangement effluent stream, a hydrocarbon solvent and an aqueous feed to a distillation column; supplying distillation heat to the fluid in the lower section of the column; removing a stream containing the ketone from the upper section of the column; removing bottoms comprising an aqueous phase and a hydrocarbon phase from the column; separating the hydrocarbon phase from the aqueous phase and recovering from the latter solid dihydric phenol product. The invention is described by reference to flow diagrams and illustrated by the preparation of resorcinol and hydroquinone.
Patent GB-701238-A (GB)
Title: Improvements in the production of polyurethanes
IPC: C08L75/00
Filed: 1951-10-01
Abstract: Polymethanes are prepared by reacting a diamine and a bischloroformate in a dispersion of a solution of the bischloroformate in a water immiscible solvent and an aqueous solution of the diamine, and in the presence of a water miscible solvent such as a ketone, alcohol, glycol, glycerol, glycol ether, glycol ether-ester, diacetone alcohol, acetonyl acetone, and dioxane. The water miscible solvent is preferably added to the diamine solution before dispersion with the bischloroformate solution, from 10-100 parts of water-miscible solvent being used per 100 parts of water.  Aromatic hydrocarbons are preferred as the water immiscible solvent as these give higher molecular weight products.  Diamine may be used as the alkaline reagent to bring about the polymerization but preferably the process of Specification 683,504 is used, the diamine being present as the hydrochloride and an alkaline material added to bring about the reaction.  Preferred figures are given for the volume ratio of the two phases and the concentration in each phase.  The Specification lists suitable diamines, bischloroformates, alkaline substances and emulsifying agents.  In examples (1) tetramethylene diamine hydrochloride dissolved in a mixture of water and acetone and butane diol bischloroformate in toluene were dispersed and aqueous sodium hydroxide added, the temperature being kept at 0-2 DEG C.  A 73 per cent. yield of 4.4 polymethane was obtained.  Without acetone the yield was 52 per cent.; (2) As in (1) using N-lauroyl-N-butyl taurine as emulsifying agent and a temperature of -2 to 2 DEG C.; yield 89 per cent.; (3) As in (2) using ethylene glycol instead of acetone and a temperature of -5 to -6 DEG C.; yield 85 per cent.; (4) As in (3) using glycerol instead of glycol; yield 87 per cent.
Patent GB-699051-A (GB)
Title: Improvements in or relating to rotary impact tools
Inventor: MITCHELL WALTER GEORGE
IPC: B25B21/02
Filed: 1951-10-02
Abstract: 699,051. Screwing-up nuts etc.; tapping; drilling. INDEPENDENT PNEUMATIC TOOL CO. Oct. 2, 1951, No. 22918/51. Class 83 (iii). [Also in Groups XXIII and XXIV] A rotary impact tool comprises an anvil 56 having a pair of arcuate slots 66, a hammer 60 having openings 63 in which slide a pair of impact rods 64, a cam bush 80 fixed on a drive shaft 50 and a cam plate 70 having forked ears 69 engaging grooves on the rods. The cam plate is loaded by a spring 71 so that the impact rods are pressed forward into the slots 66 until increased resistance arrests the anvil and cam surfaces 79, 78 on the cam bush and cam plate withdraw the rods so that they each pass into the next slot 66 and, as the hammer 60 is speeded up by the acceleration of the electric driving motor 30 and the forward movement of the cam plate down the cam slope, deliver a hammer blow to the anvil 56 when they reach the end of their respective slots. A squared section 57 on the anvil carries a socket for engaging a nut or for carrying a screwdriver, tap, reamer, drill, sander, polisher or wire brush. A trigger 94, controlling the motor switch 97, may be locked in the on position by a plunger 112, and a rotatable ring 28 operates contacts for reversing the leads to the motor brushes so that the motor may be reversed. The motor shaft 26 carries a cooling fan 43 and its end is formed as a gear 46 engaging planet wheels 74 carried by a spider 49 on the drive shaft 50. To ensure alignment of the impact members, the flat inner sides of a pair of sectorshaped projections 87 on the hammer 60 engage closely with flattened surfaces 88 on the sides of the cam plate 70. The bearing supporting the anvil in the housing 20 and the bearings supporting the anvil and the hammer on the drive shaft allow a limited tilting movement of the anvil relative to the drive shaft.
Patent GB-960094-A (GB)
Title: Improvements in or relating to the encapsulation of electrical components
Inventor: COTTON JAMES HENRY
IPC: H01G13/00
Filed: 1959-07-03
Abstract: 960,094. Encapsulating electrical components. DUBILIER CONDENSER CO. (1925) Ltd. June 2, 1960 [July 3, 1959], No. 22934/59. Heading B5A. [Also in Division H1] An electrical component such as a capacitor or a resistor is encapsulated by locating it in a mould with insulating lateral spacing means between the component and the side walls of the mould and an end stop between the component and at least one end wall of the mould, and injecting insulating material into the mould to bond or merge with the locating means to form an encapsulation through which the component terminals project; the space which the material enters being adequate to permit flow of material and release of air. A capacitor A is placed on a nylon support B of semicircular cross-section and having end walls B 1  which is located in the bottom half of mould C. The top half of the mould is then fitted so that terminals A 1  project through holes in the mould walls and nylon is injected through C 2  Into space C 1 . In the embodiment of Fig. 8 the end wall B 1  has a groove aligned with the hole in the mould wall so that terminal A 1  may be bent to project coaxially from the insulation. The embodiments of Figs. 9-14 (not shown) depict alternative supports and in Figs. 15-18 (not shown) the supports are designed so that the terminals project from the same end of the insulation. The support and injection material may alternatively be of polythene or polypropylene.
Patent GB-258863-A (GB)
Title: Improvements in direction indicators for motor vehicles
IPC: B60Q1/34
Filed: 1926-09-17
Abstract: 258,863. Haeberli, E. O. Sept. 25, 1925, [Convention date]. Road-traffic signals on vehicles. - A spherical reflecting surface 1 is covered by a transparent spherical disc 2, such as celluloid, bearing a transparent indication 3, which may be a coloured arrow, so that the arrow and disc are illuminated by reflected light. The discs are secured by a resilient ring 4 in a member 5 secured to a spindle 6 rotatably mounted in a bearing 10 and provided with a handle 7. Notches 11 hold the handle in any desired position, a spring 17 being provided in the bearing 10. The device is mounted on an arm 13 which may be secured to the pillar 16 of a windscreen.
Patent GB-274674-A (GB)
Title: Improvements in or relating to water tube boilers
IPC: F22D7/00
Filed: 1926-09-21
Abstract: 274,674. Crinks, P. F., and Vickers Boiler Co., Ltd. Sept. 21, 1926. Partitions in water space.-A lower drum of a water-tube boiler is fitted with a curved longitudinal baffle 7, Fig. 1, which directs the water from the downcomer tubes 5 around a part of the periphery of the drum, and with a second curved longitudinal baffle 8 which deflects the water towards the centre of the drum and along the cancave side of the first baffle. Sludge collecting in the bottom of the baffle 7 is removed through pipes 10 connected to drain cocks. The baffle 7, Fig. 3, is so arranged that the width of the passage between the baffle and the wall of the drum decreases in the direction of flow of the water, and the baffle 8 is so shaped that it deflects the water downwardly into the baffle 7. The water passes through a restricted space 12 between the baffles before entering the upflow tubes 6. The baffles may be supported upon hinges 13 allowing the baffles to be moved aside.
Patent GB-867113-A (GB)
Title: Soil sterilising apparatus
Inventor: HIGGS LESLIE REGINALD
IPC: A01G11/00
Filed: 1958-07-19
Abstract: 867,113. Steaming soil. NOBLES (WELLINGBOROUGH) Ltd. March 31, 1959 [July 19, 1958], No. 23242/58. Class 6(2). [Also in Group XVII] Apparatus for steaming soil comprises a bucket-like container 1 for the soil to be treated, provided with a lid 3, a perforated, conical bottom 4, and a supplementary handle 10 near its base to facilitate manipulation of the container. The container is also formed at. its base with a flange 1a and depending rim 7 in order that it may rest securely on the rim 6a of a vessel 6 for boiling water, the joint between the two parts of the apparatus being rendered steam-tight by a washer 8. The water in the vessel 6 may be heated by an electric heating element 9, or the vessel may be provided with legs, in which case the heat may be supplied by a gas ring.
Patent GB-741904-A (GB)
Title: An improved cutter head for a mineral-mining or earth-boring machine
IPC: E21C25/58
Filed: 1953-08-24
Abstract: 741,904. Mineral-mining apparatus. JOY-SULLIVAN,. Ltd., and SMITH, W. M. July 13, 1954 [Aug. 24, 1953], No. 23263/53. Class 68(1) The centrally-disposed, conical breaker h of a mineral-boring cutter head, formed by a cutter-armed, open ended cylinder a and a scroll conveyer g secured to a rotatable and advanceable shaft f in which the breaker h is mounted, is reciprocated axially of the cutter head. As the shaft rotates the end of a plunger q, radially disposed therein, passes over a series of cam surfaces in a ring structure s secured against rotational movement and the plunger moves radially of the shaft to impart an axial movement to rod h' to the breaker h.
Patent GB-1141607-A (GB)
Title: Improvements relating to washing machines
Inventor: BYRD GEORGE MAXWELL
IPC: F16H57/02
Filed: 1965-06-01
Abstract: 1,141,607. Converting rotary motion into oscillatory motion. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 19 May, 1966 [1 June, 1965], No. 23358/65. Heading F2Q. [Also in Division D1] In a washing machine, a plate-like cover 22 carries an input shaft 1, an output shaft 7 and gearing which converts uni-directional rotation of input shaft 1 into oscillatory-rotary motion of output shaft 7. The gearing comprises a spur gear 4, rotatably mounted on a stub shaft 5, which meshes a pinion 3 on driving shaft 1 and carries a stub shaft 10 to which one end of a link 8 is pivotally connected. The other end of the link 8 is pivotally mounted on a stub shaft 11 carried by a sector gear 9 which is pivotally mounted on a stub shaft 9a and meshes a pinion 6 on the driven shaft 7. A pulley 2 on the driving shaft 1 is driven by a V-belt from an electric motor. A timer drive plate 29 is connected to spur gear 4.
Patent GB-392895-A (GB)
Title: Improvements in screw propellers
IPC: B64C11/24
Filed: 1931-08-19
Abstract: 392,895. Screw propellers. COLBERT, F. E., Strathfield Avenue, Strathfield, near Sydney, Australia. Aug. 19, 1931, No. 23359. Convention date, Aug. 27, 1930. Void [Published under Sect. 91 of the Acts]. [Class 114.] A screw propeller is provided with passages leading from vents in the boss to vents in or in the vicinity of the trailing edge. The hollow boss has a divisional plate, the two chambers leading to the hollow blades. The space at the after end of the boss may be arranged in proximity to passages leading from the exhaust pipe of an engine. The propeller has its boss B formed with blade sockets C and with a divisional plate F providing spaces D, E. Secured to the sockets are propeller blades G which are hollow and have openings L at the trailing edge. The openings may form a continuous strip or be interrupted by stiffeners M. An annular passage N connected to the engine exhaust is spigoted at O into the rear side of the boss and the exhaust is drawn out centrifugally on the rotation of the propeller. In the case of marine propellers, water is allowed to enter at the fore end of the boss. When the blade is solid, the passage corresponding to the hollow K is formed by fitting a metal casing to and spaced from the blade.
Patent GB-187093-A (GB)
Title: Improvements in safety devices for semi-automatic and other rifles
IPC: F41A3/64
Filed: 1921-09-02
Abstract: 187,093. Slade, E. J. W., and Adams, E. S. R. Sept. 2, 1921. Breech actions, sliding breech-block safety appliances. - A safety device for semi-automatic and other rifles of the kind in which the rear of the breech-body is closed by a sliding plate g, comprises a rotary longitudinal bar or tube h, mounted at the rear of the body, and having at the rear end an operating- lever m and at the front end a cam projection j adapted, when the safety bar is rotated while the cocking-piece is in the cocked position, to engage the cocking-piece d and withdraw it from contact with the sear d'. A projection q prevents the bar h from being rotated into the " safe " position except when the breechbolt e is in the forward positicn. The bar h is locked against axial movement by the closing-plate g, which itself is locked by the operating-lever m which engages a groove o in the plate.
Patent GB-1209622-A (GB)
Title: Vehicle window actuating arrangements
Inventor: WALL ALAN HOWARD
IPC: F16D11/16
Filed: 1967-05-19
Abstract: 1,209,622. Vehicle window operating mechanism. JOSEPH LUCAS (INDUSTRIES) Ltd. 14 March, 1968 [19 May, 1967], No. 23408/67. Heading E2M. [Also in Division F2] A gear wheel 11 is mounted on a squared intermediate portion 15 of a cylindrical shaft 12 connected to the operating linkage of a vehicle window, for rotation therewith by a plate 13 slidable, e.g. in a diametrical slot, on the wheel 11 and having a keyhole slot 14 through which the shaft passes. The gear wheel 11 meshes a worm gear driven by a remote electric motor and, in the position shown, rotates the shaft but, on moving plate 13 to the left, e.g. by inserting a screw driver in slot 16, the large hole 14b coincides with the shaft to allow manual operation by applying a winding handle to the end of shaft 12 which projects through the internal trim of the vehicle door and is covered by a bung. Again, Figs. 4 and 5 (not shown), the wheel 11 carries a synthetic resin slide block (17) on which the plate 13 is guided for sliding by two brackets (18).
Patent GB-906529-A (GB)
Title: Processing of thermosetting resins
Inventor: STANLEY ROBERT HOLROYD
IPC: C08K5/00
Filed: 1960-07-05
Abstract: A conjugated diolefin polymer or copolymer oil is partially cured in the presence of a catalyst and from 5 to 50% based on the total composition of an inert plasticizer and then heated to complete the cure.  Specified oils are polybutadiene and butadiene-styrene copolymer, while the plasticizer may be a sebacate, adipate, dialkyl phthalate or (preferred) tricresyl phosphate.  Preferred catalysts are benzoyl peroxide, t-butyl hydrogen peroxide, dicumyl peroxide and ditertiary butyl peroxide. The partial cure may take place at 100 DEG -120 DEG  C. for 12 to 24 hours and the final cure at 125 DEG  to 145 DEG  C. for 2 to 6 hours. Specification 881,702 is referred to.
Patent GB-578361-A (GB)
Title: Improvements in fishing rod rests
IPC: A01K97/10
Filed: 1944-11-25
Abstract: 578,361. Fishing rod rests. BUGGINS, G. Nov. 25, 1944, No. 23537. [Class 48] An adjustable rest for a fishing rod comprises curved supports 2, 3 for the butt end of the rod, and a helical coil 5 gripping the upper portion of a stand 6. To lower the rod, an arm 7 is pressed upwards to expand the coil and release its grip on the stand, the adjustment to the rod is made, and upon release of the arm 7, the coil again grips the stand. By pressing the rest upwards, coil 5a is expanded, and the rest will be raised. Strip material may be used in place of round rod.
Patent GB-1262183-A (GB)
Title: Triorgano lead compounds and a method of producing the same
Inventor: WIRTH HERMANN OTTO
IPC: C07F7/24
Filed: 1969-05-08
Abstract: 1,262,183. Triorgano-lead compounds. DEUTSCHE ADVANCE PRODUKTION G.m.b.H. 8 May, 1969 [10 May, 1968; 28 Sept., 1968; 26 Feb., 1969], No. 23581/69. Heading C2J. Triorgano-lead compounds of the formula R 3 PbX or (R 3 Pb) 2 X are produced by splitting R 3 Pb-PbR 3  in an acid medium by an equimolar amount of a percarboxylic acid in the presence of a compound HX, H 2 X, MeX, Me 2 X or MeX 2 . Wherein R is phenyl or naphthyl (optionally substituted with C 1 -C 6  alkyl or alkoxy, fluorine or chlorine), C 1 -C 12  cycloalkyl or aralkyl; X is a residue derived from an organic or inorganic acid, a sulphonic acid, a phenol, a thiophenol, a mercaptan, a thiocarboxylic acid ester, a dialkyldithiocarbamic acid, an amine, an amide or an imide, or is -OH or -CN; and Me is alkali metal or alkaline earth metal. The process is usually effected in a single stage, but if the reactants containing the radical X are not inert with respect to the percarboxylic acid used, then the process may comprise two steps-a first step in which the hexaorganolead compound is first split in the presence of the acid alone to form the triorgano-lead acylate followed by a second step to form the product. The acid medium may be obtained by using a carboxylic acid which if not the corresponding acid to the percarboxylic acid used will give a mixture of triorgano lead compounds as product. The examples describe the preparation of many compounds, the following being said to be novel: bis - (triphenyl - lead) - hexafluorosilicate; triphenyl-lead tetrafluoroborate; bis-(triphenyllead)sulphate; triphenyl-lead sorbate; bis-(trin-butyl-lead)sulphate; triphenyl-lead methanesulphonate; triphenyl-lead amidosulphonate; bis - (tri - n - butyl - lead)terephthalate; triphenyl-lead hexylmercaptide; triphenyl-lead laurylmercaptide; triphenyl-lead #-mercaptopropionic acid 2-ethyl-hexoate; triphenyl-lead diethyldithiocarbamate; triphenyl-lead caprylate; mono - (triphenyl - lead) phthalate; trip-tolyl-lead 2-ethylhexoate; and mixtures of triphenyl-lead. acetate with triphenyl-lead trichloracetate; triphenyl-lead acetate with triphenyl-lead trifluoroacetate ; and triphenyl-lead acetate with bis-(triphenyl-lead)hexafluorosilicate.
Patent GB-237284-A (GB)
Abstract: 237,284. Hacklõnder & Co. July 18, 1924. [Convention date]. Testing.-An electroscope for testing textiles &c. comprises a body0 a of non-hygroscopic material in which is an aperture a<1> closed by celluloid or like windows d. Within the aperture a<1> is arranged a metal foil g arranged to be attracted by a fixed electrode f, of which one end projects into the aperture, a<1> and the other is situated outside the casing for contact either with a charging-rod or with the articles to be tested. The foil g is free at one end, the other end being attached to a roller h, which may be recessed to receive it, and which is so mounted that it can be rotated from outside the casing so as to protect the foil f when not in use. A recess q, lined with felt &c., is provided for holding a charging-rod, which is held sufficiently tightly to cause it to be electrified by withdrawal. In a modification, two foils q, each mounted on a revoluble collar, are provided, the electrode f being situated between them. A recess for holding standard testing- material may be provided, and may have a sliding cover. The testing-material may consist of a silk cord threaded through an aperture in the casing a and serving as a loop for suspending the apparatus.
Patent GB-855236-A (GB)
Title: Improvements in or relating to mounting plates for gas-fired appliances
Inventor: WOLFENDEN HENRY CHARLES LEONAR
IPC: F24H9/00
Filed: 1957-07-26
Abstract: 855,236. Balanced flues. RADIATION Ltd. July 18, 1958 [July 26, 1957], No. 23781/57. Class 126. [Also in Group XIII] A gas-fired space heater or instantaneous water heater (neither shown) is mounted by the bolting of brackets, at its flue gas outlet and at the open rear of its burner box, to flanges 9 at the sides of conduits 5, 6 secured in upper and lower apertures 3, 4 of a mounting plate 1. The plate 1 is fixed by screws in holes 10 to the wall of a concrete duct which supplies combustion air and disposes of flue gases for a number of flats, the duct being cut to accommodate the flue conduit 5 and the air conduit 6 when the heater is installed. The conduits are spot-welded to flanges 7 of the plate 1 and have a strip 8 of metal at each front edge forming a channel for receiving an edge of the heater's flue gas outlet or burner box and asbestos string for sealing. The strips 8 on the vertical edges are formed with the flanges 9.