baber/WOPTO huggingface dataset:
Patent GB-279644-A (GB)
Title: Improvements in machines for proofing hats
IPC: A42C1/08
Filed: 1926-11-05
Abstract: 279,644. Battersby, W. G. Nov. 5, 1926. Proofing.-A proofing machine for hat bodies or hoods comprises means for rotating the work, means for oscillating or reciprocating a nozzle to which proofing material is supplied, and a brush or pad bearing against the work. The hat block N is rotated by a constantly-running pulley D, dog clutch E and reducing gearing 4, 5. A tube L, supplied with proofing liquid, is pivoted at K and oscillated by an adjustable lever 0, P from a cam Y on the shaft of the pulley D. A sleeve 2, driven from the hat block shaft by reducing gearing, carries a second cam 1 for moving the tube L away from the hat when the treatment is complete, the cam being adjustable so that the period of treatment may be predetermined. The pivot of the tube L forms the cock for the liquid supply, so that when the tube is swung away from the hat the supply is stopped. A starting lever J operates the dog clutch E, and is linked to a slide 9 actuated by a tooth on the sleeve 2 to free the clutch when the tube L is swung away from the hat. A lever 12 pivoted at K carries a pad 8 normally pressed against the hat by a spring X connected with the lever by a curved link 14. For change of work the lever 12 is moved until the line of the spring X passes beyond the pivot K, when the lever is retained in out of the way position. This lever is connected to a member 20 carrying a cam 22 which lifts the slide 9 above the tooth on the sleeve 2 so that the lever J can be operated to re-start the machine when the work has been changed. In a modification, the proofing nozzle is mounted on a carriage reciprocated in a guideway by an arm arranged similarly to the pipe L. One of the Provisional Specifications describes this modification in detail.
Patent GB-262739-A (GB)
Title: Improvements in or relating to vapour burners
IPC: F23D11/44
Filed: 1926-11-06
Abstract: 262,739. Lokomotivfabrik Krauss & Co. in Linz. Dec. 11, 1925, [Convention date]. Addition to 261,008. Atmospheric vapour burners; perforated-tube burners; vaporizing-apparatus. - In a vapour burner, as described in the parent Specification, the burner-plate is replaced by a burner-head consisting of a cylindrical part 21, adapted to receive a burner-plate 22 and having radial branch-pipes 23 leading to a ring burner 24, the lateral outlet from the part 13 being closed by a plug 13<1>. The burner-plate described in the parent Specification may be used to cover the part 21, a guide-bolt 16 being provided or the holes in the burner-plate and in the part 14 being closed.
Patent GB-616598-A (GB)
Title: Improvements in ash blowing equipment for lancashire type steam boilers
IPC: F23J3/02
Filed: 1946-09-18
Abstract: 616,598. Steam jet conveyers. BOLTON'S SUPERHEATER & PIPE WORKS, Ltd., und GRAY, T. F. Sept. 18, 1946, No. 27986. [Class 78 (i)] [Also in Group XII] Ash-blowing equipment for a Lancashire type steam boiler comprises nozzles f in the furnace flues, each nozzle f being secured to a flue-plate e over the end of a steam branch connection c which projects through and is welded to the flue-plate e. Each nozzle f is provided with horizontal grooves which secure a cover i protecting the back and top of the nozzle. A guard plate m, which prevents erosion of the flue-plate c, slides into vertical grooves in the cover i. The steam branch connection c is provided with an expansion bend between the nozzle and the main steam pipe.
Patent GB-221993-A (GB)
Title: Improved self-closing lavatory tap or valve
IPC: F16K21/10
Filed: 1923-11-07
Abstract: 221,993. Doulton & Co., Ltd., and Walker, G. Nov. 7,1923. Waste-preventing valves; dashpots, applications of. - A self-closing non-concussive lavatory tap has a main lift valve member P opened by means of a push M and closed by a spring R and by fluid flowing through and ports G, K in a piston F secured to the valve. The piston works in a cylinder B screwed into an extension A<1> of the inlet fitting so as to leave an annular passage communicating by ports C with the inside of the cylinder. The piston has an annular groove D and the cylinder has an enlarged bore H so that when the valve and piston are depressed water may pass through the ports C, ard groove D to the central passage G and thence through the main valve to the outlet. Above the supporting flange E of the cylinder the piston is provided with a plate J having a sliding fit in the main casing so that as the valve closes a vacuum is formed beneath the plate to retard the closing movement.
Patent GB-484555-A (GB)
Title: Improvements in methods of introducing electric conductors into hermetically-sealed vitreous vessels
IPC: H01J9/32
Filed: 1937-10-15
Abstract: 484,555. Sealing leading - in conductors into vitreous vessels. BRITISH THOMSON - HOUSTON CO., Ltd., and GENERAL ELECTRIC CO., Ltd. Oct. 15, 1937, No. 28098. Convention date, Oct. 15, 1936. [Class 36] In sealing a leading-in wire 2 to an electrode 3 into a vitreous vessel 1, the wire without the electrode attached to it is first sealed into a cylindrical vitreous body 5 which fits closely into an aperture in the wall of the vessel and is provided with a rim 7 on its outer edge. The electrode 3 is then attached to the end of the leading-in wire remote from the rim, and the body 5 is introduced into the aperture so that its rim 7 is adjacent to the edge 6 of the aperture, whereupon these adjacent parts are sealed together by a flame directed upon them. The wire 2, which is preferably of tungsten, is sealed into an aperture in the cylindrical body 5 by means of a glass 4. If the vessel 1 is made of quartz the parts 4, 5 consist of intermediate glass or glasses. Specification 425,928, [Group XL], is referred to.
Patent GB-385376-A (GB)
Title: Improvements in and relating to vacuum pumping systems
IPC: H01J13/28
Filed: 1931-10-10
Abstract: 385,376. Mercury-vapour rectifiers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and READ, J. C., Cable House, Bilton, Rugby. Oct. 10, 1931, No. 28216. [Class 39 (i).] The level in a mercuryvapour pump 1 evacuating a mercury-vapour rectifier 4 is maintained constant by a pipe 8 connecting the boiler with a condensation-receiving trough 9 in the vacuum pipe of the rectifier and allowing mercury to flow to or from the boiler. The trough and the upper part of the vacuum pipe are cooled by a jacket 10, and the pump is kept cooler than the rectifier. A bend 11 in the pipe 8 prevents heat transference by convection. Surplus mercury flows from the trough back to the rectifier.
Patent GB-481302-A (GB)
Title: Improvements relating to the ventilation of buildings
IPC: F24F7/00
Filed: 1936-10-17
Abstract: 481,302. Ventilating buildings; animal shelters. PARKER, G. Oct. 17, 1936, No. 28282. [Classes 20 (i) and 137] Draughtless ventilation is provided in a building particularly suitable for pigs or cattle, by providing under a sloping window A an opening B between the bottom of the window and the sill C, so that entering air controlled by a slide J, and deflected upwards by a curved facing E, will travel along the underside of the roof to an outlet H. A dung passage N is arranged between the pens K and the wall, and a feeding trough M extends down the building adjacent to the centre passage L.
Patent GB-957410-A (GB)
Title: Improvements in or relating to switching circuits
Inventor: ROBINSON NIGEL DAVID
IPC: H03K17/64
Filed: 1959-08-19
Abstract: 957,410. Transistor gating circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. Aug. 10, 1960 [Aug. 19, 1959], No. 28286/59. Heading H3T. [Also in Division G5] A selective head-switching arrangement comprises balanced head-windings 3, 4 and associated diodes 8 connected in parallel to a transformer winding 6, a diode back-bias, normally disabling each head, being selectively removed by appropriate signals fed to the bases of transistors 9, 10. The arrangement may be used for selective reading or writing of phase-modulated signals, a residual bias maintained by the circuit 15-20 being discharged by the writing current to enable a large writing current to flow in the selected head. The high-frequency response of the circuit is improved by capacitors 21. A bias built up across the circuit 15, 16 by the writing current provides a sharp cut-off bias to the diodes 8 when the selected head is disabled.
Patent GB-864281-A (GB)
Title: Improvements in and relating to gate valves
IPC: F16K3/12
Filed: 1958-09-04
Abstract: 864,281. Valves. CARFAGNA, A. Sept. 4, 1958 [Sept. 9, 1957 ; Dec. 5, 1957], No. 28408/58. Class 135. The spindle 4 of a wedge gate valve 1 is operated by an internal screw thread on a surrounding sleeve 8 provided with a doubleconed land 9 between upper and lower seats 12, 13 providing pressure seals additional to a gland 18 and packing rings 17, a locking device serving to keep the land 9 pressed against one of the seats 12, 13 in any operating position of the valve independently of the fluid pressure acting upon it. As shown the outer end of sleeve 8 carries a lock nut 19, the lower surface of which can be engaged by raising gland 18 and thus tensioning sleeve 8 to engage the upper sealing surface of land 9 against seat 12 in any position of the valve 1. In modifications, Figs. 2 and 3 (not shown), the valve operating members comprise oppositely handed screw threads which serve to control the force between land 9 and its associated seating during opening and closing of the valve. Sleeve 8 may be subjected to the action of an internal spring (Fig. 3) which maintains a sealing force on land 9, and in addition the upper portion of the valve spindle head 6 and the lower portion of sleeve 8 may be formed with conical sealing surfaces which engage when the valve is fully open.
Patent GB-227799-A (GB)
IPC: C01D5/02
Filed: 1924-11-27
Abstract: 227,799. Farbwerke vorm. Meister, Lucius, & Br³ning. Jan. 18, 1924, [Convention date]. Addition to 225,548. Chemical furnaces.-In the salt-cake furnace described in the parent Specification, in which the muffle is made of fire-proof and acid-resisting brick or stone material, the acid is fed on to the hearth through a number of pipes passing through the muffle roof. The stirrer arms may be protected by a covering of acid-proof material, and the acid supply may be intermittent.
Patent GB-763072-A (GB)
Title: Improvements in or relating to clutches, particularly for valve control apparatus
IPC: F16D43/22
Filed: 1953-10-15
Abstract: 763,072. Valve - actuating mechanism. JANETTE ELECTRIC MFG. CO. Oct. 15, 1953 [Oct. 28, 1952], No. 28465/53. Class 135. [Also in Group XXIV] A centrifugally engaged, overload release, positive clutch 36 (see Group XXIV), is located between an electric motor 29 and the stem 45 of a valve. The motor drives through the clutch and a gear train 28, 17, 15 to a wormwheel 14. The worm-wheel is splined to a thrust nut 41 rotatably mounted by bearings 47 in an axially movable support 42 urged downwards in Fig. 2 by springs 43. Rotation of the thrust nut 41 causes axial movement of the valve stem 45. When the valve has been, e.g. closed, further axial movement of the stem is prevented and the support 42 is moved axially thereof by the thrust nut 41 screwing along the valve stem, to compress the springs 43 until sufficient load is put upon the overload release clutch to disengage it. The valve can also be operated manually by moving a hand wheel 21 to the right of Fig. 1 against the bias of a spring 22 to engage gears 19, 18. A solenoid 27 is energized, when the electric motor 29 is switched on, to eject a pin 26 into a groove 25 in the hand wheel shaft and prevent this axial movement.
Patent GB-243001-A (GB)
Title: Improvements in or relating to steam turbines
IPC: F01D5/14
Filed: 1925-11-12
Abstract: 243,001. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Nov. 12, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Blades.-In steam turbines having tapered rotor blades a, the stator blades b are tapered in the opposite direction in order to reduce the clearance and the overall length c.
Patent GB-424288-A (GB)
Title: Improvements in carburetters
IPC: F02M3/08
Filed: 1933-10-16
Abstract: 424,288. Spray carburetters. SALT, C. T., 15, Carlton Road, Derby. Oct. 16, 1933, No. 28582. [Class 7 (iii)] In a carburetter in which engine suction, operating on the top of a piston a<4> carrying an air inlet valve a<3> and needle valve b for fuel, lifts the valves to control the admission of air and fuel, a distance sleeve d on the bottom of the air valve a<a> engages the end of a sleeve bl surrounding the needle valve to determine the lowermost position of the air valve and thereby permit an idling byepass to be disposed at the edge of the throttle valve a<2>, the byepass being adjustable by rotating a member in which it is eccentrically disposed. Fuel is supplied to the byepass by a nozzle f opening into the flared end of a sleeve f<8> open at its sides to an air passage f The sleeve b<1> may be lowered by levers b<2> to close the air inlet for starting and on being raised, air can be drawn through apertures d<1> in the distance sleeve d to give a rich mixture. The distance sleeve d may be mounted on the sleeve b and may be larger in bore than the sleeve b to keep the point of maximum constriction at the end of the latter.
Patent GB-1084648-A (GB)
Title: Improvements in cast-in-situ concrete piles
IPC: E02D5/44
Filed: 1966-06-27
Abstract: 1,084,648. Casting piles in situ. J. J. DOUGHERTY. June 27, 1966, No. 28626/66. Heading E1H. Apparatus for casting a concrete pile in situ comprises a tubular casing 10 and a domeshaped foot or shoe 12 abutting and closing the lower end of the casing, the casing together with the foot being driven into the ground to form a hole or shaft for the pile. A helically-corrugated shell 14 for the pile is subsequently inserted into the casing so as to abut an annular shoulder 20 on the foot, means being provided for locking the shell to the foot that comprises a pipe nipple 40 fixed to a plurality of radial legs 44, whose outermost ends are attached to the shell, and a tubular member 22 fixed to the foot and carrying an annular plate 26 with flexible teeth defined by a plurality of radial slots (30), Fig. 5 (not shown), which teeth engage with screw-threads on the nipple. The foot 16 serves to compact the ground thereunder to form a bulbous base (50), Fig. 8 (not shown), for the pile. When the shell 14 has been filled with concrete (54) the casing 10 is withdrawn from the ground. The shell 14 may be made of steel or paper.
Patent GB-481678-A (GB)
Title: Improvements relating to wheeled jacks
IPC: B66F5/02
Filed: 1936-10-21
Abstract: 481,678. Lifting-jacks. FORD, Ltd., L. G., and FORD, L. G. Oct. 21, 1936, No. 28648. [Class 78 (iii)] A lifting device comprises a jack mounted on wheels and means, independent of the jack, for clamping a raised load against dislodgment. As applied to an arrangement for handling firesurrounds, the device comprises a screw jack 13, Fig. 1, mounted on a wheeled base 11, and resilient clamping levers 19, Fig. 2, pivoted on the base at 20. In the operating position, the base is positioned between the uprights of the surround and, when the surround has been raised, the levers are turned inwards about their pivots so that their ends 21 press the uprights against padded plates 17 on the base. The levers are then held in position by engagement with a rack 23. In a modification, Fig. 3, the uprights 30 of the surround are held against the base 24 by spring-controlled rods 25 slidably mounted in brackets 26 on the base. In another arrangement the clamping means comprises two rigid rods pivotally mounted about horizontal axes on the base and provided with offset portions at their ends for engaging the uprights 30. In a further modification. Fig. 5, in which the base 36 is of T-shape, the clamping means comprises resilient arms 40 pivotally mounted about a horizontal axis in lugs 41.
Patent GB-382673-A (GB)
Title: Improvements in or relating to the manufacture of aliphatic anhydrides
Filed: 1931-07-15
Abstract: Aliphatic anhydrides are produced by heating salts of the corresponding acids such as acetates of metals of high or relatively high basicity such as the alkaline-earth metals, iron, lead, manganese, aluminium, and zinc, the acetates of which normally yield substantial quantities of acetone on heating, these salts being heated in admixture with normal salts of strong mineral acids, such as the sulphates or chlorides of the metal present in the acetate. Preferably the salts are very uniformly mixed.  The quantity of added salt required is greater the more basic is the metal of the acetate. The salts are preferably used in the anhydrous form, and any water may be removed by heating, preferably over sulphuric acid or in a current of gas or vapour, or under reduced pressure.  The acetates are preferably dried at temperatures not exceeding 200 DEG  C., the added salt being dried separately if it requires a higher temperature.  For the decomposition, the acetate admixed with the added salt may be simply heated, or heated in a current of air, nitrogen, carbon dioxide or other indifferent gas, or in a current of indifferent vapour such as benzene or petroleum ether.  The temperature range is about 200-450 DEG  C., and normal, increased, or reduced pressure may be employed; where a volatile salt such as zinc acetate is used, increased pressure is preferable.  Other aliphatic acid salts such as the propionates, butyrates, and methoxy acetates may be used instead of the acetates to produce the corresponding anhydrides.  In an example, crystals of manganous acetate are dried at 120 DEG  C., mixed with anhydrous manganous chloride, and heated at 280-300 DEG  C. at an absolute pressure of 10-20 mm.  The crude anhydride may be fractionally distilled.
Patent GB-1480393-A (GB)
Title: Method for reducing the amount of pollutants in engine exhaust gases
IPC: F02D41/18
Filed: 1974-06-28
Abstract: 1480393 Regulating I C engines ROBERT BOSCH GmbH 28 June 1974 [29 June 1973] 28739/74 Heading F1B A system for reducing the amount of pollutants in the exhaust gases of I.C. engines comprises a fuel metering system, a first oxygen sensor adapted to be located in an exhaust system of the engine and operable to regulate the quantity of fuel fed to the engine by the fuel metering system in dependence upon the oxygen content of the exhaust gases to provide an air/fuel mixture having an air number #>1, the fuel metering system being further   operable to inject a quantity of fuel into the exhaust system downstream of the first oxygen sensor, a reactor for reacting the fuel quantity and the exhaust gases together, and a second oxygen sensor adapted to be located in the exhaust system downstream of the reactor and operable to regulate the metering of fuel into the exhaust system at a location downstream of the first oxygen sensor. The quantity of air entering an inlet manifold 1 is measured by a pivotally-mounted plate 6, the movement of which controls the amount of fuel fed to injectors 11. In the exhaust pipe 3 of the engine is a first oxygen sensor 17, the amplified signal from which controls a valve 13 which opens to allow fuel to return to tank 10, thus lowering the injection pressure. The system operates to maintain an air to fuel ratio (X) of 1À02, where # = 1 is a stoichiometric mixture. Downstream of sensor 17 is a nozzle 22 through which fuel is injected into the exhaust gases, to facilitate reduction of nitrogen oxides in a first reactor stage 23. A second oxygen sensor 25 controls the operation of a valve 28 in the pipe 29 feeding nozzle 22 so that downstream of the first reactor section a stoichiometric mixture exists, unburnt hydrocarbons and carbon monoxide then being oxidized in the second reactor section 24.
Patent GB-693305-A (GB)
Title: Improvements in or relating to synchronous motors
IPC: H02K19/08
Filed: 1950-11-24
Abstract: 693,305. A.C. motors. MIDGLEY, A. H. Nov. 21, 1951 [Nov. 24, 1950], No. 28822/50. Class 35. A self-starting synchronous motor has sets of spaced co-operating unshaded pole-pieces of the stator of same polarity located respectively on the inside and outside of an annular space for a cylindrical shell rotor, and sets of spaced co-operating shaded pole-pieces of the stator of same polarity located on the opposite sides of the said annular space to their respective unshaded pole-pieces. The stator pole structure 8 comprises a unit formed in four axially spaced layers as follows :-inner ring 11 and outer ring 9 of magnetic material; insulating ring 12; copper rings 13, 14; and rings 15, 17 of magnetic material. The rings 11, 9 have radial projections 11a, 10 with ends turned over into the axial direction. A cylindrical shell steel rotor 23 closed at the outside by an aluminium disc 24 is arranged to rotate in the annular air gap provided by the turned-over edges of the poles 11a, 10. The rotor shaft 25 fits into an aperture of a self-lubricating bushing 6 of an inner cylindrical projection 5 in a cup 3 of magnetic material.
Patent GB-1436348-A (GB)
Title: Method of and apparatus for tracking a weld line
IPC: G01N29/24
Filed: 1973-06-18
Abstract: 1436348 Automatic control of position BRITISH STEEL CORP 14 June 1974 [18 June 1973] 28874/73 Heading G3R [Also in Division G1] In automatic weld tracking apparatus, a weld detector includes two secondary coils, whose outputs are differenced to form a tracking control, and an energized primary coil that surrounds the secondary coils. As shown, a weld tracker 1 is used to position ultrasonic probes 7, 8 relative to a weld 4 on metal tube 5. The tracker includes a primary coil energized from oscillator 26, and two secondary coils (see Fig. 3 not shown). The output of the secondary coils, which are dependent upon the position of the coils relative to the weld, are differenced by a bridge circuit 27 and compared at 29 with the  phase shifted oscillator output from gate-pulse shaper 31. Any difference is averaged by amplifier 32 and used to control a pneumatic valve 34 for air motor 36, that moves the tracker 1 so that it follows the weld. Details of the tracker and its support mechanism are given on Figs. 2 and 3 (not shown).
Patent GB-1421258-A (GB)
Title: Cleaning method and cleansing material therefor
IPC: C11D7/44
Filed: 1973-06-18
Abstract: 1421258 Cleansing compositions G SKIRDE 18 June 1973 28900/73 Heading C5D A cleaning material for use in removing unwanted material adhering to the surface of a substrate, e.g. aircraft, watercraft and motor vehicles comprises (A) a liquid medium comprising a carrier liquid and petroleum solvent and (B) a particulate substance such as wood powder swollen by and in suspension in the liquid medium so that, on applying the cleaning material to the surface and removing the liquid medium, the particles of substance deswell and the deswelled substance and unwanted material form on the surface a non-adherent granular mixture. (A) may be a mixture of water or methyl alcohol and petroleum solvent, especially 70% carrier liquid and 30% petroleum solvent, 2% of an amine may also be present. Blowers or heat radiation may be used to remove the solvent. The granular material is removed by brushing, wiping or blowing with air.
Patent GB-484088-A (GB)
Title: Improvements in or relating to the manufacture of chlorinated artificial masses
IPC: C08K5/01
Filed: 1936-10-27
Abstract: Plastic compositions are obtained by treating chlorine-substituted high-molecular hydrocarbons which are film-forming materials, with such unsaturated or aromatic hydrocarbons whose boiling point is above 150 DEG  C. at 20 mms. pressure as can be obtained by treating petroleum with liquid sulphur dioxide according to the Edeleanu process.  Suitable chlorine-substituted hydrocarbons are chlorinated rubber or after-chlorinated polyvinyl chloride.  The plastic compositions formed may be incorporated with other softeners or solvents, resins, drying or non-drying oils, dyestuffs, pigments, fillers, &c., in the preparation of cements, adhesive substances, lacquers, varnishes, impregnating agents for textiles &c. Specification 306,501, [Class 2 (iii)], is referred to.