baber/WOPTO huggingface dataset:
Patent GB-853828-A (GB)
Title: Methods for treating starch
Inventor: FREDRICKSON RALPH E C
IPC: C08B30/16
Filed: 1958-07-21
Abstract: Starch is dextrinized by maintaining a bed of fluidizable starch powder in a fluidized condition in a vessel with an upward flow of fluidizing gas, preferably about 0.5 ft./sec., heating said bed to and maintaining it at dextrinizing temperature (e.g. 150-400 DEG F.) until the desired degree of dextrinization is obtained and introducing steam into the flow of gas during at least a portion of the dextrinizing cycle.  Dilute hydrochloric acid vapour may be introduced as a catalyst, the conversion being arrested by introducing ammonia.  At the beginning of the process, at least a portion of the air withdrawn from the vessel may be vented until the starch is dried and thereafter the gas withdrawn is recycled.  The heating and cooling of the fluidizing starch may be effected by heat exchangers mounted within the fluidizing vessel.  The moisture content of starch may also be adjusted to a desired value by a process in which starch is maintained in fluidized condition in a vessel by an upward flow of gas which is maintained until the moisture content reaches the desired value, the moisture content of the gas being such as to produce the said adjustment of moisture content.  The fluidized bed may be heated to hasten drying, the gas being recirculated after removal of moisture therefrom.  Wet starch powder may be rendered fluidizable by blending with dried starch powder.  The moisture content of fluidized starch may be increased by increasing the moisture content of the fluidizing gas.  The fluidizing gas may be air, flue gas, nitrogen or carbon dioxide. The addition of a very small percentage of tricalcium phosphate will restore the fluidizability to starch which has been rendered non-fluidizable by the presence of oil.  The use of tricalcium phosphate also reduces the bulk density of fluidized starch and permits the use of less fluidizing gas for a given weight of starch.
Patent GB-315596-A (GB)
Title: Improvements in and relating to electric sound boxes or pick-ups for talking machines
IPC: H04R11/08
Filed: 1928-08-13
Abstract: 315,596. Asch, E., and Ideal Werke Akt.-Ges. f³r Drahtlose Telephonie. Aug. 13, 1928. Gramophone pick-ups.-A gramophone pick-up has the upper end of the needle carrier b mounted directly in the neutral zone of an annular or like magnet a through the intermediary of a sleeve c of elastic material, the lower end of the carrier passing freely between the magnet poles. According to a modified construction a semi-circular magnet carrying pole-shoes may be employed.
Patent GB-981323-A (GB)
Title: Improvements in or relating to pressure fluid circuits
IPC: B60P1/16
Filed: 1960-07-05
Abstract: 981,323. Pressure-warning devices. A.L. WARNER. June 27, 1961 [July 5, 1960], No. 23385/60. Heading G1L. A pressure-warning device comprises a union 3 inserted between fluid pressure lines 1, 2 and connected to a pressure-sensitive device 7 which operates a switch 7 when a predetermined pressure is reached. The switch closes a circuit to a battery-operated audible and/or visual indicating part 9. The device may be employed to warn the driver of a dipping truck that the hydraulic circuit for the tip is engaged.
Patent GB-768575-A (GB)
Title: Improved paint roller
IPC: B05C17/02
Filed: 1954-08-12
Abstract: A cylindrical paint roller A for a light duty paint applicator consists wholly of foamed plastic, e.g. polyurethane, having a cylindrical bore B by means of which it may be mounted upon a hollow rigid spindle C, on which it is held by end flanges D and washers E. One flange at least is removable, and is provided with a <PICT:0768575/III/1> <PICT:0768575/III/2> hollow spigot d for insertion into the end of the spindle.
Patent GB-1411041-A (GB)
Title: Device for severing the head from the neck of slaughtered poultry
IPC: A22C21/00
Filed: 1974-05-28
Abstract: 1411041 Removing poultry heads STORK BRABANT BV 28 May 1974 [12 June 1973] 23493/74 Heading A2U The heads of poultry birds travelling head down on a conveyor track 1 may be removed by a device comprising two elongate guides (5a), 5b separated by a distance which will accommodate the neck but not the head of each bird, wherein the guides are also so arranged that the plane which includes both guides diverges from the conveyor track in the direction of travel and a conveyor 8 mounted under the guides is adapted to displace the head of each bird in the the direction of travel. The head conveyor may be a screw conveyor as in Fig 1 or a pair of belt conveyors (Figs 4 and 5).
Patent GB-968292-A (GB)
Title: Improvements relating to furnaces
Inventor: PATRICK ERIC ANTHONY KNIGHTS
IPC: F27B3/00
Filed: 1962-06-20
Abstract: 968,292. Reverberating furnaces. NORTH THAMES GAS BOARD. July 19, 1963 [June 20, 1962], No. 23751/62. Heading F4B. A reverberatory furnace, particularly for aluminium, comprises a melting-bath and a bale-out trough surmounted by a preheating chamber with a side-charging access such that combustion gases from the bath preheat the metal charge, which can subsequently be directly transferred to the melt, and then flow upwards through a recuperator. The melting- bath 3 projects forward to form with the refractory tile 7, extending downwardly from the front of the furnace below the melt surface, a baling-out trough 6, and is surmounted by a preheating chamber 11 formed by the furnace walls and rearwardly-projecting shelf 10 on to which the charge is deposited through the opening 12. Combustion gases from the bath preheat the charge before passing through the duct 14 into the box-ended multi-tube recuperator 16, which simultaneously preheats combustion air prior to delivery to the slot gas burner 17 directing a row of flames into the bath through the horizontal front slot 18, and cools the effluent gases.
Patent GB-1109036-A (GB)
Title: Photographic roll-film camera
IPC: G03B7/00
Filed: 1966-05-27
Abstract: 1,109,036. Between-lens shutters; diaphragms. FRANKE & HEIDECKE G.m.b.H. [trading as ROLLEI-WERKE FRANKE & HEIDECKE], May 27, 1966 [June 4, 1965], No.23788/66. Heading G2A. A photograph roll film camera having an objective tube 1 with a between-lens shutter and diaphragm both arranged in the tube, which tube can be pulled out and axially secured in the "ready for exposure" position by being rotated about its axis, is provided with shutter drive means and diaphragm setting means fixedly arranged on the camera body. Shutter drive. When the tube is secured in the "ready" position a shutter driving lever 2 reciprocally mounted thereon lies in the path of travel of two lugs 10, 11 on a master member 9 of the shutter drive means. Actuation of a release button 20 pivots a lever 15 clockwise as shown out of engagement with a tail 12 of the master member 9 which is also free to move clockwise under spring action, thereby bringing lug 10 into contact with a pin 7 of the driving lever 2, which is rotated anti-clockwise to open the shutter. When the lug 10 slides off the pin 7, the lug 11 engages a pin 8 of the driving lever 2 to pivot the lever clockwise, thus closing the shutter. The lug 10 is formed as a spring-loaded catch pivotable about a stud 23 so that the lug 10 can slide over the pin 7 when the master member 9 is returned to the tensioned position shown by anti-clockwise rotation. Diaphragm setting. A diaphragm drive member 3 on the tube 1 is coupled to a toothed rack 37 spring urged towards the right (as seen) so that a shoulder 40 thereon abuts a lever 41 on the camera body. The position of this lever is determined by a cam disc 42 on a shaft 43 which can be connected to an exposure meter. When the tube is rotated from the "ready" position, the shoulder 40 is lifted from the lever 41 and the rack 37 is spring urged to close the diaphragm. A releasable latch 32 on the camera body is provided to engage a slot 31 in the tube 1 when the tube is in the "ready" position.
Patent GB-876981-A (GB)
Title: Improvements in or relating to propellers for outboard motors
IPC: B63H1/20
Filed: 1959-07-10
Abstract: 876,981. Screw propellers. OSMASTON, R. June 30, 1960 [July 10, 1959], No. 23832/59. Class 114. A propeller comprises a hub 1 with means for releasably securing blades 2 thereto so that the propeller can be made two, three or four bladed as desired. The hub has six arcuate slots 6 to 11, the slots 6 to 9 being spaced so that adjacent ones subtend an angle of 90 degrees at the hub axis, while slots 9 to 11 are spaced so that adjacent ones subtend 120 degrees. Tapering holes 12 extend through the hub parallel to the axis thereof, each hole merging with its associated slot to form a recess 13. Each blade 2 has a tongue 14 for fitting into any one of the slots 6 to 11 and a groove 15 for registering with a recess 13. Blades may be fitted in slots 6 and 8 (or 7 and 9), or in 9, 10 and 11, or in 6, 7, 8 and 9 depending on whether a two, three or four bladed propeller is required, and are secured by inserting taper pins 16 in the holes 12. The slots are longer than the tongues 14 to allow for adjustment of blade pitch. The hub 1 consists of an inner sleeve 3 for securing to the propeller shaft and an outer casing 4 in which the slots are formed, with a shock absorbing rubber tube 5 between them. In another embodiment the outer casing is of rubber, and in another the casing is hollow with spring means for securing the tongues in the slots.
Patent GB-1421756-A (GB)
Title: Process for preparing brefeldin-a
IPC: A01N43/22
Filed: 1972-05-22
Abstract: 1421756 Brefeldin-A SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BY 18 May 1973 [22 May 1972] 23949/72 Heading C2C Brefeldin-A which has the formula is prepared by cultivating a fungus of the genus Phyllosticta in the presence of an aqueous medium containing a source of assimilable carbon. The brefeldin-A may be extracted from the reaction mixture by a solvent, e.g. ethyl acetate.  The product may be used as a fungicide.
Patent GB-986586-A (GB)
Title: Method of making tin plate
IPC: C25D5/36
Filed: 1962-06-21
Abstract: A tin plate with bright finish is obtained by a cleaning stage ending with an acid pickle from which the steel strip while maintained wet is given a flash coat of tin from an alkali tin plate bath, followed by a heavy plate from an acid tin plate bath, and finally a heat treatment which just melts the tin coating.  A steel strip A passes through alkali 1 and spray wash stages 2 to an acid pickle bath 3 containing about 10% H2SO4, where an electrolytic potential may be applied.  Excess acid pickle is washed off, but not neutralized, in stage 4, and is then while still wet given a coating of tin from an alkali stannate bath in stage 5, which coating is preferably 0.02-0.1 1b. per standard box.  After spray-washing in stage 5, the coated strip is given further coatings of tin from phenol sulphonic acid stannous sulphate baths in stages 7, 8, 9, wherein tin anodes are used. The tinned steel is then washed in dilute acid, which is dried on the strip, and is finally heat treated to flow the tin and form a tin-iron alloy. Optimum corrosion-resistance is achieved when of the total tin coating, 2-10% is formed in the alkaline stannate bath. <PICT:0986586/C6-C7/1>
Patent GB-487012-A (GB)
Title: Automobile steering wheel construction
IPC: B62D1/08
Filed: 1937-09-02
Abstract: 487,012. Hand wheels. TRIGGS, W. W. (Thermo-Plastics, Inc.) Sept. 2, 1937, No. 24046. [Class 80 (iv)] A steering-wheel has hub and rim members joined by composite spokes each comprising a number of spoke members secured to the hub, the other ends of the spoke members extending into an anchor plate and being engaged therein by enlargements or heads formed on the spokes, the anchor plate being permanently secured to the rim member as by welding. The hub 1, Fig. 2, has radial lilgs 6 in which are secured the individual spokes 12 which may be of spring steel wire each having a shoulder 13, Fig. 4, and a neck portion adapted to enter a crescent shaped anchor plate 15. Each anchor plate has its concavity toward the rim 3 and has apertures for the passage of the neck portions 14 which are headed over as at 17 within the concavity so that the heads abut the rim 3. In the position shown in Fig. 4, the anchor plate may be welded at 18 to the rim member the heads 17 then lying concealed within a chamber 21.. Where the composite spoke carries an ornamental member such as 22, Fig. 4, each spoke 1.2 may be knurled or roughened as at 23 to grip such member. In a modification, the anchor plate has its edges tapered towards and the inner faces fit the rim and welding is effected at these edges. Depressions are formed in the concave surface to receive the heads of the spokes. The spokes may be serrated near the heads to take up clearance in the holes. In further modifications, (1) the anchor plate has a single longitudinal recess to receive the heads of the spokes ; (2) the sides of the anchor plate are tangent to the rim and, form a dihedral angle to receive the heads. After securing the spokes, the whole of the rim, the anchor plates and part of the spokes may be covered by a coating 41, 42 of thermoplastic material such as cellulose acetate.
Patent GB-1003781-A (GB)
Title: Apparatus for crimping filaments
IPC: D02G1/12
Filed: 1964-06-10
Abstract: In a method of crimping filaments e.g. twisted or "twistless multifilament yarn, of glass, quartz or ceramic material, the filaments are passed through a preheating zone and heated therein to a temperature below the softening temperature of the glass &c., fed into the crimping chamber of a heated stuffer-box crimper and then directly into a setting chamber of greater cross-sectional area than the crimping chamber (so that the mass of crimped filaments open therein) and wherein the filaments are heated to about the softening temperature for a time sufficient to relieve stresses due to crimping, to annial the filaments and to burn off any sizing.  The crimped filaments are withdrawn in the form of a compacted "core", and/or flattened web from which a single end of yarn may be subsequently extracted, or as a yarn which may be resized or coated, as by spraying or passage over a coating roller, in one or more (not necessarily successive) stages, and the size may temporarily bond filaments at their points of intersection.  The size prevents interfilament "saw-action" breakages during subsequent processing or usage before or after winding into a package.  In apparatuses described, a single member comprises walls forming a setting chamber communicating with the crimping chamber and the walls are heated to the higher temperature and transfer heat by conduction to the crimping chamber to heat the filaments to a lower temperature.  A preheating chamber may precede the rollers feeding the filaments into the crimping chamber.  The crimping and setting chambers may be formed by a series of concentric, telescoping tubes and hot gases may be introduced thereinto.  The form of the final product e.g. intermittently and/or irregularly, helically or "saw-tooth" crimped yarn, may be determined by variation of back-pressure in the crimping chamber, the temperatures in different (including preheating) zones, the duration of the heat treatments, the initial twist in the yarn, feed rates and tension of the yarn leaving the setting zone.
Patent GB-972606-A (GB)
Title: Improvements relating to electro-magnetic switching devices
Inventor: DUCKITT HARRY
IPC: H03K3/45
Filed: 1962-06-22
Abstract: 972,606. Controlled non-linear inductors. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. May 30, 1963 [June 22, 1962], No. 24093/62. Addition to 958,235. Heading H3B. [Also in Division H1]  A switching device of the kind disclosed in the parent Specification has an additional set of windings W3, W4, on an additional core C1 with an additional permanent magnet M1, and the inductance of the additional windings has a high or low value depending on the sense of the last signal in the D.C. control winding W5. The winding W5 may be in two parts, one for current in each direction. The permanent magnets are so poled that one set of windings W1 and W2 or W3 and W4 has a high inductance and the other set has a low inductance.
Patent GB-1243302-A (GB)
Title: Improvements in or relating to a method of making a rolling bearing cage and to a combination including such a cage
Inventor: ERHARD WALTER
IPC: B21D53/12
Filed: 1969-05-12
Abstract: 1,243,302. Making bearings. SVENSKA KULLAGERFABRIKEN A.B. 12 May, 1969, No. 24117/69. Heading F2A. [Also in Division B3] A rolling bearing cage is made by forming pockets 2 in a plane metal strip 1, surface treating the strip so as to be resistant to wear, cutting the strip to the required length and, after inserting rolling elements 8 into their pockets and inserting the cage into a bearing race 10, joining the ends of the strip to form the cage. The ends of the strip may be joined by resistance butt welding the ends having first been chamfered to accommodate protuberances (17, Fig. 4, not shown) produced during welding. The surface treating of the strip may provide a surface which is electrically resistive to facilitate the welding. Notches (14, Fig. 2, not shown) are provided for connection to a current source and to accommodate clamps during welding.
Patent GB-170721-A (GB)
Title: Improvements in or relating to the manufacture of moulded glass articles
IPC: C03B19/02
Filed: 1920-08-19
Abstract: 170,721. Frink, R. L. Aug. 19, 1920. Gathering molten metal; moulding under pressure. - Relates to the moulding of solid glass articles such as vault lights, pavement prisms, porthole lights, inkwells, paper-weights, pedestals, door knobs, castors, electrical insulators, &c. According to the invention, the apparatus consists of a moulding-chamber 3 detachably secured to a vacuum chamber 1 by clamps 11, the chambers 1, 3 being separated by a perforated diaphragm 2. The orifice 13 is immersed in molten glass and the air is exhausted through a pipe 6 and control valve 7. When the mould 3 is full, it is lifted and a shear 15 operated. The finished article is removed when cool.
Patent GB-832402-A (GB)
Title: Improvements relating to electrical contact members
Inventor: DEAKIN STANLEY THOMAS
IPC: H01R43/02
Filed: 1957-07-30
Abstract: 832,402. Modifying metallic surfaces. SIEMENS EDISON SWAN Ltd. July 21, 1958 [July 30, 1957], No. 24208/57. Class 82(2) [Also in Groups XXII, XXXVI and XXXVII] A contact, particularly for soldering into a printed circuit (see Group XXXVI) has a contact surface coated with a layer of conductive material which resists being wetted by solder, and a connecting surface to which solder will adhere. The contact may be stamped from metal strip which may have the coating formed thereon before the contact is severed therefrom. Fig. 5 shows one method of treating a strip 21. The strip is a copper-base alloy and is silver-plated before passing it through driving rollers 11, 12 which push the strip between rollers 22, 23, rotating in such a direction as to oppose movement of the strip between them. These rollers are spring-pressed into engagement with opposite faces of the strip and dip into a container 27 filled with solder or flux lacquer which is transferred by the rollers on to the strip in the form of a thin layer 29 adjacent one edge. The strip is then treated, e.g. with ammonium sulphide, so that the silver on the uncoated part is converted into silver oxide or silver sulphide, which is not wetted by solder, this part of the strip subsequently forming the contact surfaces. In a modification of the device shown in Fig. 5, rollers 22, 23 are replaced by a drum (Fig. 6, not shown) which drives a pair of conical rollers engaging the central portion only of the strip 21. The position of the strip of coating material thus applied may be altered by changing the relative positions of strip and rollers. A broken strip of coating material may be applied by using rollers as shown in Fig. 7 instead of the conical rollers. Bosses 44 on these rollers, which rotate in the same direction as and at the same speed as the moving strip 21 apply short lengths of coating material. According to a further alternative, the whole of the silver plating on the strip 21 may be converted to the oxide or sulphide and then removed by brushing where it is not required.
Patent GB-759164-A (GB)
Title: Improvements in or relating to methods of manufacturing metal articles
IPC: H01P11/00
Filed: 1953-09-01
Abstract: 759,164. Waveguide transformers. GENERAL ELECTRIC CO., Ltd., BOURNE, W. A., and MUZLISH, R. P. Oct. 4, 1954 [Sept. 1, 1953], No. 24213/53. Class 40 (8). [Also in Group XXII] A door knob transformer for providing a transition between waveguides and coaxial transmission lines comprises a tube 1 of rectangular cross-section made of magnesiumzirconium or magnesium-aluminium alloy with an internal frusto-conical projection 2 which is drilled to receive with clearance a rod forming the inner conductor of the coaxial line. The conductor also passes through a hole drilled in the opposite wall of the tube. Another waveguide component, Fig. 5, has an internal bore of H cross-section, Fig. 7 (not shown), at one end which merges into a bore of rectangular crosssection, Fig. 6 (not shown) at the opposite end. Both components are made by pressing operations (see Group XXII).
Patent GB-388090-A (GB)
Title: Improvements in and relating to metal compositions
IPC: C22C1/05
Filed: 1931-08-28
Abstract: Tantalum carbide is prepared by intimately mixing tantalum with carbon, and firing the mixture in a closed graphite tube in a hydrogen furnace at a temperature of about 1550-1600 DEG  C. Specification 213,524, [Class 1 (ii), Inorganic compounds, other than &c.], is referred to.  Reference has been directed by the Comptroller to Specifications 373,708 and 376,299.ALSO:A hard composition suitable for a cutting-tool bit consists of tantalum carbide and a metal binder such as nickel.  The composition is prepared by intimately mixing tantalum with carbon, firing the mixture in a closed graphite tube in a hydrogen furnace at a temperature of about 1550-1600 DEG  C., grinding the carbide so obtained and mixing it with the binding metal, pressing the mixture to the desired shape, and sintering it in a closed graphite crucible in a hydrogen furnace at a temperature of about 1300 DEG  C.  Iron or cobalt may be used as the binding metal.  A tool bit thus formed may be copper brazed to a steel shank. Specification 213,524, [Class 82 (i), Metals, Extracting &c.], is referred to.  The Specification as open to inspection under Sect. 91 comprises also the use of nickel alloys, e.g. an alloy containing 45 per cent of nickel and 55 per cent of tungsten, or an alloy consisting of about 47 per cent of iron and 53 per cent of molybdenum, as binding material for the tantalum carbide.  This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 373,708 and 376,299.