baber/WOPTO huggingface dataset:
Patent GB-528019-A (GB)
Title: Improvements in or relating to homogenizers
IPC: F16K27/02
Filed: 1939-04-26
Abstract: 528,019. Emulsifying-apparatus. BRUSH ELECTRICAL ENGINEERING CO., Ltd., and SENIOR, K. April 26, 1939, No. 12519. [Class 1 (i)] [Also in Group XXIX] A homogenizing valve or crusher head has the two valve members located with respect to one another by means of a long spindle having a bearing surface with an axial length two or more times its diameter. In the form shown in the Figure the movable part comprises a mushroom head 10 formed integrally with a spindle 11 which is hand lapped into a tubular bearing 13 formed integrally with the fixed valve member 12. The member 12 is provided with a flange 17 whereby it is clamped between the end of a pressure cylinder 18 and a housing 21 provided with an outlet connection 22. Inside the housing 21 there is a dispersion sleeve 23 having an outlet 24. One or more washers 15 with valving surfaces may be arranged between the members 10, 12, said washers being internally and/or externally fluted to engage the spindle 11 and/or sleeve 23. The valve member 10 is acted on by a loading rod 25 placed under axial compressive load by a differential screw mechanism 26. In a modification the rod is made integral with the valve member 10 and in a modification of this form the spindle 11 is dispensed with and the rod 25 is used for guiding the valve head.
Patent GB-593819-A (GB)
Title: Improvements relating to cooling or refrigerating systems
IPC: B61D27/00
Filed: 1945-05-18
Abstract: 593,819. Refrigerating. RAILWAY REFRIGERATION CORPORATION. May 18, 1945, No. 12621. Convention date, May 18, 1944. [Class 29] An absorption cooling system for a railway car or other vehicle comprises replaceable pressure tanks 10 containing liquid anhydrous ammonia or a similar expansion medium, which, on opening a hand valve 25, passes through high pressure conduits 18, 16, 15, through a regulating expansion valve 19, which is controlled thermostatically, to cooling coils 6 disposed along the roof of the vehicle, and thence by low pressure conduits 20, 21, 23 to absorbers 11 containing aqueous ammonia or water, a suction pressure control valve 20a controlling the pressure at which the liquid ammonia evaporates, thus determining the temperature of the ammonia gas in the cooling coils 6. In servicing, the spent tanks 10 are renewed, and the strong ammonia solution is drawn from the absorbers 11 into the servicing plant, where the liquid ammonia is distilled from the solution for subsequent use.
Patent GB-528127-A (GB)
Title: Improvements in or relating to sound recording apparatus
IPC: G11B7/00
Filed: 1939-04-27
Abstract: 528,127. Optical sound recording. RADIO CORPORATION OF AMERICA. April 27, 1939, No. 12674. Convention date, May 28, 1938. [Class 40 (ii)] Relates to apparatus in which a "penumbra" mask produces a graduated intensity in a light beam which is then vibrated across a slit plate to make a sound record on a film as described in Specification 456,998 and U.S.A. Specification 2,095,318. According to the invention, noise reduction is obtained by adjusting the penumbra mask by means of a bias current which increases with increased modulation, and an optical or mechanical device is provided for determining the end position of this noise reduction arrangement. As shown, light from a lamp 10, Fig. 1, passes through a penumbra mask 11, lens 13, window 15, and lens 16 to galvanometer mirror 17, and thence through lens 18. slit 20 of plate 19, and lens 22 to film 23. The penumbra mask 11 is adjusted for noise reduction by a shutter coil 25 fed with " envelope '' currents from a amplifier-rectifier-filter 28, Fig. 2, supplied, with the galvanometer coil 24, from the amplifier 27 of the microphone 26 ; these devices may be as described in Specification 384,742. The circuit is arranged to give increasing current in the shutter coil 25 for increasing modulation. A mechanical stop is provided to limit the movement of the penumbra mask 11 ; or a fixed opaque shutter 12 is provided against the penumbra mask having the same effect of putting an effective limit to the adjustment.
Patent GB-691794-A (GB)
Title: Improvements relating to ratchet clutch
IPC: F16D41/12
Filed: 1950-05-22
Abstract: 691,794. Ratchet clutches. ECKINGTON, F. J. May 22, 1951 [May 22, 1950], No. 12706/50. Addition to 634,795. Class 80 (ii). The teeth 8 of the inner driven ratchetwheel 10 in the ratchet clutch of the parent Specification are spring-mounted so as to yield radially inwards to avoid jamming if the crowns of the pawl and teeth should abut on engagement. The inner wheel 10 may then be rigidly mounted, without necessity for the conventional inner free - wheel mounting shown at 6a in the parent Specification. The teeth 8 may be pivoted as shown at 16 and pressed outwards by blade springs 17A or torsion coil-springs, Figs. 5 and 6 (not shown); or they may slide radially against compression coil-springs. The outer surfaces of the teeth 8 conform to that 14 of the hub 10 in the depressed position, and the teeth may be arranged in staggered or alternately divided rows to permit clearance, Fig. 9 (not shown).
Patent GB-910028-A (GB)
Title: Bis azo dyes
IPC: C09B31/02
Filed: 1960-04-11
Abstract: 910,028. Water-insoluble dis-azo dyes. AZIENDE COLORI NAZIONALI AFFINI S.p.A. April 11, 1960 [Dec. 15, 1959], No. 12760/60. Class 2(4). The invention comprises dyes of formula where Ar is a phenol or naphthol nucleus, which may besubstituted with a methyl group, with the hydroxy group in the oposition to the azo group, R is H or OMe and R 1  is Me\or OMe when Ar is naphtholic or OMe when Ar is a phenol nucleus. The dyes are made in a conventional fashion by diazotising an appropriate aminoazo dye and coupling with the Ar component. The dyes are used for the direct dyeing of polyolefine material. In examples the dyes (1) and (2) 2-methoxyaniline # 2,5-dimethoxyaniline # 4-methylphenol and # #-naphthol respectively, (3) 2-methoxy-aniline # 2-methoxy-5- methylaniline # #-naphthol and (4) 4-amino- 2,5-dimethoxyazobenzene # 1-methyl-4-naphthol are made.
Patent GB-1085834-A (GB)
Title: Improvements in or relating to the sealing of containers
Inventor: JONES OSCAR JOHN
IPC: B65B7/28
Filed: 1963-04-01
Abstract: 1,085,834. Capping containers; closuring containers. FORDS (FINSBURY) Ltd. April 1, 1964 [April 1, 1963], No. 12806/63. Headings B8C and B8T. A container is sealed by heat sealing a cap to the upper part of the container lip and at the same time crimping or folding the periphery of the cap beneath the lip. The sealing apparatus may comprise a plurality of arms 14 each hinged at 15 to a plate 12 which supports a platen 10 containing a heating element 13. Each arm carries a segment 16 at one end and a bearing 18 at the other end which rides up a tapered wall 23 of a drum cam under action of spring 27, when a container and cap are raised upwardly against the platen, so causing the lower end of the arm to swing in so that the segments 16 fold the periphery of the cap beneath the container lip. In the embodiment of Fig. 7 a copper heated platen 30 is moved upwardly against the action of a spring 42 by a container C until the upper face of the platen contacts the under side of a flange 51 of a resilient annulus 50. Further upward movement causes the annulus 50 to be deformed so that its shoulder 52 swings in contact with the cap periphery. The crimping may alternatively be effected by means of a circumferential spring which is caused to move radially inwards while the container cap is in contact with the heated platen. To prevent overheating of the container and cap, the containers may be elevated into the sealing heads by an elevator mechanism actuated by a cam rail with a shape which corresponds to a suitable time cycle for the containers to be in contact with the platen. Alternatively, to prevent overheating the platen may be continuously heated but a switch which energizes a solenoid whose armature is connected by a linkage to a rod arranged to cause movement of the sealing head towards the container may limit the period of contact between the container and platen. The sealing head movement may alternatively be controlled by a mechanical, hydraulic, or pneumatic means associated with a suitable time delay arrangement. In a modification, the platen may be heated in impulses. The container may be made of a synthetic organic thermoplastic material such as polythene and its cap from a metal foil lined with similar thermoplastic material. Alternatively the container may be made of waxed paper or a rigid material such as glass or metal and its cap of metal foil or paper or card with a wax layer therebeneath.
Patent GB-434937-A (GB)
Title: Improvements in refrigerator cabinets
IPC: F25D23/00
Filed: 1935-04-30
Abstract: 434,937. Refrigerators. ELECTROLUX, Ltd., Luton.-(Assignees of Platen-Munters Refrigerating System Aktiebolag; 2, Norrmalmstorg, Stockholm) April 30, 1935, No. 12887. Convention date, May 5, 1934. [Class 29] Refrigerators having air - cooled heat delivering apparatus members, such as gilled parts 6, located outside the insulating walls 5 of the storage space 2 containing the refrigerating element 3, are adapted to be built into a wall or kitchen cupboard re cess 7 so as to pro vide an air flue at the bottom, top and the back or sides of the cabinet through which a current of air will flow by natural draught. The front of the cabinet containing the door 8 of the storage space is provided at the top and bottom with louvres 14, 15, which may be curved and adjustable in inclination and may be mounted in frames that may be pivoted to give access to the flue space for cleaning &c. The louvre frames may be flush with the front wall of the recess, or the cabinet front may project slightly and the louvre frames be inclined towards the wall. The cabinet may have rear legs and the fins of the heated parts may act as distance pieces at the back ; alternatively separate distance pieces 18, formed to serve as runners in inserting the cabinet, may be employed.
Patent GB-1149021-A (GB)
Title: Method of and apparatus for producing particles in a metastable state
Inventor: BAKER FRANKLIN ALBERT
IPC: H01J37/30
Filed: 1966-03-23
Abstract: 1,149,021. Transmutation of elements. BATTELLE MEMORIAL INSTITUTE. 23 March, 1966 [23 March, 1965], No. 12920/66. Heading G6P. To produce fluid particles in a metastable state, the chamber G, containing the fluid to be brought to the metastable state, is connected to the evacuated chamber 1 and electrons from the cathode 8 are deflected before striking the anode 2 by the magnetic field due to electromagnet 9. The fluid particles adsorbed at the surface of 2 are desorbed in the form of a mixture of metastable, neutral and ionized atoms. The electrostatic traps 10, 11 eliminate the charged particles. The fluids used are either argon or krypton. The metastable output is stated to be a function of electron angle of incidence at the anode.
Patent GB-1124660-A (GB)
Title: A circuit device for step-by-step control of an electrical voltage
Inventor: KARLSTROM JOHAN KRISTER
IPC: G01G3/145
Filed: 1966-03-23
Abstract: 1,124,660. Digital to analogue converters. INGENJORSFIRMAN EL - AUTOMATIK A.B. 23 March, 1966, No. 12936/66. Heading G4H. A digital-to-analogue converter comprises a reference resistor Ra, Fig. 2, across which the output voltage is produced and a group of resistors R 1 -R 12 connected at one end to a voltage source, there being for each resistor a two-way switch O 1 -O 12 arranged to connect the corresponding resistor to the reference resistor Ra or to a further resistor Rb of equal value. The load on the supply is therefore always the same irrespective of how many switches are operated. Two groups of switched resistors may be provided producing signals over resistors Ra and Re connected in series. The supply is taken from the first secondary winding S 1 of a transformer T. A second secondary winding S 2  supplies a measuring bridge B which produces a signal representing, for example, a weight. This is applied to one end of a transformer winding P', while the output from the digital-to-analogue converter is applied to the other. The secondary winding S<SP>1</SP> gives a signal proportional to the difference. A series of resistors R 25 -R 34  are provided, controlled by switches, to introduce a bias to compensate for the time taken for the mechanism to respond to the error signal. In the case of an automatic concrete mixer, the digital-to-analogue converter switches may be controlled by a record and the bridge B by the weight of tho ingredients. The hopper flap does not close instantly a balance is achieved, and the switches O 30 -O 34 are adjusted so that it begins to close before a true balance has been reached.
Patent GB-256345-A (GB)
Title: Improvements in or connected with electric transformers
IPC: H01F27/04
Filed: 1925-05-18
Abstract: 256,345. Foster Engineering Co., Ltd., and Bagnall, R. I. May 18, 1925. Transformers.-A transformer station comprises a single portable casing containing the transformer together with its protective and control gear and means for connecting the incoming and outgoing cables. The transformer is housed in a lower portion a of a steel chamber which in the case of an oil cooled transformer is provided with external oil-circulating tubes a'. The control and protective gear comprising a tapping switch i, meters h, and fuses g is housed in the upper portion c of the chamber. According to one arrangement, Fig. 1, glands d<2>, d<3> through which the incoming and outgoing cables pass are protected by metal shields d. According to an alternative arrangement, Fig. 5, the supply cables are led through a cable pillar l, the upper portion of which is provided with means for effecting the required connections. The cable armouring is clamped at glands o carried by a transverse plate in the cable pillar, and in the case of the multicore high tension cable, the cores are separated above the plate and secured at p, Fig. 10, to wedge-shaped contact members p<1> carried by bell-shaped insulators. The contacts p<1> co-operate with spring contacts carried by insulators q<1> on the transformer casing. The low tension cables are passed through similar glands o and secured to insulated bolts s adapted to receive the transformer connections, access to which is obtained through a door r. The transformer is mounted on wheels or rollers b, and may be disconnected and removed from the cable pillars. The upper portion c of the casing may be provided with inspection doors which may be interlocked with the switch gear.
Patent GB-1065641-A (GB)
Title: Devices for tensioning haulage chains of mining machines
Inventor: GRAINGER ARTHUR ALLAN
IPC: E21C29/14
Filed: 1963-04-02
Abstract: 1,065,641. Hauling. COAL INDUSTRY (PATENTS) Ltd. July 2, 1964 [April 2, 1963]. No. 12983/63. Heading B8B. A tensioner for a haulage chain 13 of a mining machine comprises a device for giving the chain an initial tension and a device for limiting the maximum chain tension, the latter comprising an hydraulic piston and cylinder arrangement 25 having either the piston or cylinder anchored and whichever is not anchored is adapted to be secured to the chain 13, hydraulic fluid being discharged from the cylinder when the piston moves due to the chain tension reaching its maximum value. A pressure relief valve 18 coupled to the fluid supply line permits fluid discharge from the cylinder at the limiting tension. In the embodiment of Fig. 4 the chain 13 is coupled through an initial tensioner 27 to a flexible linkage 22 which is coupled to the maximum limit tensioner 25. The initial tensioner 27 comprises a plurality of compression springs 28 attached to plates 29, 30 at their ends, the end of the chain passing between the springs and being attached to the plate 30 which is movable under load to compress the springs 28 within the framework 31. When the springs are fully compressed, the device 27 is moved with further chain tensioning and this loads up the maximum limit tensioner 25 via linkage 22 until the tension is relieved by the valve 18 whereupon the springs 28 re-expand. In the embodiment of Fig. 1 (not shown) the chain 13 is coupled directly to the piston-rod of a piston and cylinder assembly. The initial tension is applied to the chain by pressurizing the cylinder and when this pressurized fluid reaches the pressure representing maximum limiting chain tension the relief valve operates to reduce the tension. In the embodiment of Fig. 2 (not shown) the initial tension is applied by an hydraulic piston having a pulley on its outermost end around which a flexible linkage from the chain, passes to a pair of piston and cylinder devices arranged in parallel to act as the maximum limit tensioner.
Patent GB-109643-A (GB)
Title: Improved Method of and Means for Knurling Cylindrical Articles.
Inventor: BURGESS CHARLES EDWARD
IPC: B21J5/12
Filed: 1916-09-15
Abstract: 109,643. Burgess, C. E., and Eldridge, J. E. Sept. 15, 1916. Knurling.-A knurling-roller F is carried by a shaft spur geared to a shaft carrying a belt pulley B. The crank is pressed against the rollers F, G by a roller H carried by a lever I under the control of a weighted lever system N, P. To insert the work, the hand-lever L is turned in the direction of the arrow, the slip R supporting the lever P. If the metal is hard, circumferential grooves are turned or milled and the knurling-roller only produces the axial grooves, but if the metal is soft, the circumferential grooves also may be formed by the rollers G or H. Specifications 6176/07, 22148/08, and 8453/11 are referred to.
Patent GB-419296-A (GB)
Title: Improvements in stamping or embossing machines
IPC: B30B1/02
Filed: 1933-05-05
Abstract: 419,296. Hydraulic presses. MILLMAN, C. H., and DOVE, G. H., Standard Works, Evington Valley Road, Leicester. May 5, 1933, No. 13122. [Class 69 (ii).] In an embossing press, more particularly for operating on boot and shoe parts, the die b is operated hydraulically by a device comprising a rotary impeller carried by a piston within a liquid-containing cylinder c, and driven so as to cause a difference of pressure between the two sides of the piston. Specification 363,137 describes such a device. The piston is connected to a rod f pivoted to toggle levers g, g<1>, one of which is pivoted to toggle-levers h, h<1>. The upper end of the lever h is connected to a spring-retracted lever k operating on the dieplunger k<1>, by a two-part connecting-rod i, il the parts i, i<1> being kept substantially straight by a lever engaging an abutment i<3> on the part i, and exact alignment of the parts being prevented by abutments i<2>. Electric contacts are provided on the abutments i<2> in series with the switch d of the electric motor during the hydraulic device. A lever h<2> causes the upper end of the lever h to have a substantially vertical movement. A telescopic link l, l<1> connects the lever j to the rod f, the link l<1> being adjustable so that when the rod f has risen sufficiently to move the levers g, g<1> just beyond their dead centre, the lever is pushed upwardly and allows the rod i, i<1> to break thus stopping the electric motor driving the hydraulic device and causing the parts to return to normal position under the action of gravity assisted by the springs m, m<1>. A spring plunger n on the lever k engages a recess in a lever n<1> when the die b is in its raised position. A circuit-breaking device for regulating the length of time during which the die is in contact with the work may be provided. The platen or anvil a is mounted on a slide supported by a heavy spring o and adjustable in height by means of a quick-pitch spiral-block p which is held in adjusted position by a ratchet- and-pawl device p<1>, p<2>.
Patent GB-552575-A (GB)
Title: Method of clarifying sugar cane mill juices
IPC: C13B10/04
Filed: 1941-10-11
Abstract: 552,575. Purifying sugar-cane juices. BERENGER, A. E., and VILLIERS, O. D'H. DE. Oct. 11, 1941, No. 13135. Drawings to Specification. [Class 127] Sugar-cane juices obtained by passing sugar cane through a series of mills, the first of which yields undiluted juice and bagasse which is passed together with juice from a third mill through a second mill, the bagasse from which is passed together with water through the third mill, is purified by overliming the juice from the second mill before or after heating it, and mixing the overlimed juice with the juice from the first mill, to which clarifying substances such as phosphoric acid or phosphates may have been added. The mixed juices are treated to bring them to PH8, either by further liming or by neutralizing with phosphoric, sulphurous, carbonic or other acid.
Patent GB-615563-A (GB)
Title: Improvements in cathode-ray tube
IPC: H01J29/80
Filed: 1946-05-01
Abstract: 615,563. Cathode-ray tubes. DU MONT LABORATORIES, Inc., A. B. May 1, 1946, No; 13197. Convention date, April 5, 1945. [Class 39 (i)] The envelope of a cathode-ray tube has a cylindrical portion adjacent the luminescent screen; on the inside of this cylindrical portion are a series of-spaced bands 8, 9, 10, 11 of conducting material, such as platinum or graphite, which are used as a post-deflection acceleration system, the final band 11 being connected to the luminescent screen. A layer of high resistance material 16 may be applied to the whole cylindrical portion. Each band may be connected to an external source of potential at 12, 13, 14, 15, or alternatively a source of potential may be applied only between 12 and 15, the high resistance material serving to connect the other bands. The potentials of the bands may range by equal steps from 10,000 to 30,000 volts. The layer of luminescent material 20 may be applied on top of a thin transparent conducting layer 21 which is connected to the final accelerating band 11. The layer 21 may be of chromium. The Specification as open to inspection under Sect. 91 states that the bands may be of silver. This subject-matter does not appear in the Specification as accepted.
Patent GB-1118394-A (GB)
Title: Improvements in or relating to cigarette lighters
IPC: F23Q2/52
Filed: 1967-03-21
Abstract: 1,118,394. Filling smokers' lighters. O. S. GROP. 21 March, 1967 [23 March, 1966], No. 13215/67. Heading F4F. A container 10 for filling the fuel container 1 of a gas-fuelled cigarette lighter having a hole 2 closed by a screw plug 4 has a protruding tube 11 with its outer end shaped as a screwdriver 12 and a piece of rubber hose threaded on the tube 11 to form a seal against the lighter. The tube 11 is axially but non-rotatably movable in an opening 16 of container 10 and has a valve device 17-23, the container being rotated to unscrew the plug 4 with the screwdriver 7 and then pressed inwards to allow fuel to flow via tube 11 and by-pass 8 into the lighter. In a modification, the rubber hose seals inside the filling hole of the lighter.
Patent GB-1338042-A (GB)
Title: Method for the production of a field effect transistor
IPC: H01L29/00
Filed: 1971-05-05
Abstract: 1338042 Semi-conductor devices LICENTIA PATENT-VERWALTUNGS GmbH 5 May 1971 [5 May 1970] 13242/71 Heading H1K In a method of manufacturing an I.G.F.E.T., prior to forming windows to make contact to the source and drain regions, at least the portion of the insulating layer intended for the gate electrode is covered with a metal coating. During manufacture, following formation of the source and drain regions 7, 8 by diffusion into a silicon body 1, an insulating layer 13 of silicon dioxide or silicon nitride is provided with a metal coating 12 of aluminium, gold, chromium, platinum or titatium by evaporation. The metal coating and insulating layer are subsequently removed from the contact areas, and a second metal coating 16 deposited on the coating 12 and the exposed areas of the regions 7, 8 forming the contact areas. The coating 16 may be of the same material as coating 12. The coatings may then be partially removed to produce gate electrode 19, and the source and drain electrodes 17, 18. In an alternative embodiment a getter or passivation layer of a doped silicon oxide, silicon nitride or aluminium oxide may be included between the insulating layer and the first metal coating. A photo-resist etching technique may be used on both the insulating layer and metal coatings.