baber/WOPTO huggingface dataset:
Patent GB-401049-A (GB)
Title: Improvements in the covers of electric tumbler switches
IPC: H01H23/02
Filed: 1932-06-30
Abstract: 401,049. Switch covers. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield. June 30, 1932, No. 18474. [Class 38 (v).] A cover for a tumbler switch comprises a body portion a, adapted to enclose the switch mechanism, and a plate-like top b which is integral with, or moulded in one piece with, the body portion, and is adapted to be used as a wallbox cover plate. The cover is formed with an aperture a<1> for the accommodation of the dolly or tumbler of the switch. The aperture may be screwthreaded to receive a screw-threaded dolly socket or similar part of the switch, or alternatively, as shown, the mouth of the body portion a may be screw-threaded for attachment to a screw-threaded switch base.
Patent GB-458826-A (GB)
Title: Improvements in, or relating to, overload and other release devices for use in electric circuit-breakers and the like
IPC: H01H71/40
Filed: 1935-06-28
Abstract: 458,826. Electrically-tripped switches. CRABTREE, G. E., Endwood, Little Aston Park, Sutton Coldfield, ELLIOTT, W. T., The Vicarage, Grosvenor Mount, Leeds, BADHAM, E., 34, Buchanan Road, Walsall, and THORNTON, R. W., 3, King Edward Street, Oxford, [Representatives of CRABTREE, J. A.] June 28, 1935, No. 18493. Addition to 436,589. [Class 38 (v)] The invention of the parent Specification is modified by combining the bimetal release element and a magnetic release of the armature type in a common insulating housing, and parts of both the magnet-core and armature are contained in or encircled by the tubular or sleeve-like bimetal element. The latter and the armature operate trip-bars or equivalent means which also are carried in the housing and transmit tripping movement to the breaker when the corresponding release is operated by overload conditions. Fig. 4 shows the core e and armature e<1> having parts e<3>, e<2> respectively, which are enclosed within the heating coil d and body b of the bimetal element b. The core is fixed and the armature is pivoted at the part e<2>, the arrangement being such that, when the armature is attracted, the two U-shaped parts form a closed magnetic circuit, and a trip rod f is actuated. A further trip-bar c is actuated by the free end b<3> of the element b, the other end of which is secured at b<2>. The coil d is connected at one end to a terminal d<1> and at the other to the free end b<3>. The unit is mounted in a chamber a' in a housing a of moulded insulation, and installed in suitable relation to a contact-locking mechanism in the manner, for example, described in Specification 45f,379.
Patent GB-675580-A (GB)
Title: Improvements relating to melting apparatus for materials such as resins, cellulose acetate and the like
IPC: B29C35/04
Filed: 1949-07-13
Abstract: 675,580. Heating apparatus for melting resins &c. MORGAN, I. C., and BLOMLEY, S. July 6, 1950 [July 13, 1949], No. 18493/49. Class 64(ii) . In apparatus for melting materials under pressure, the material, e.g. resins, cellulose acetate, waxes, shellac or seed lac, is spread on the strainer bottoms 2 (of gauze or perforated metal) of trays 1, 2 which are then assembled in a column and placed in a vessel 9. Furthermore, a removable cover 17 closes the vessel when a heating agent, such as steam at 10-60 lbs. pressure, is passed through from an inlet 29 to an outlet 30 and deflectors 3 below the trays direct the melted material to a collecting space 10. The walls 1 of the trays, for the passage of steam, have rings of holes 31, which have a total area equal to that of the steam inlet 29. The deflectors 3 are of truncated cone shape and surrounded by a flange 4. Each flange fits into the wall 1 of an adjacent tray and the column thus formed is united by long bolts 5 which also hold a spider 16 at the top of the column. A second detached spider 12 engaging beneath lugs 13 at the top of the vessel carries a central screw and hand wheel 15 by which the column is held down on a flange 8 near the bottom of the vessel. The hinged cover 17 has sight glasses 27, an adjustable safety valve 26 and a rubber sealing ring 25 and is secured by spaced clamps which engage beneath a ring 21 on the vessel and each carry an adjustable screw engaging a ring 23 on the cover. The clamps are mounted by pin and slot pivots on the vessel 9 which is also provided with legs, Fig. 4 (not shown). The steam supply line includes a control valve, pressure reducer, check valve and pressure gauge while the drain line leading to a condenser includes a strainer, steam trap and check valve, Fig. 5 (not shown). The material melted on one tray need not pass through the material being melted on lower trays and the last deflector 3 directs the material into the middle of the conical collecting space 10. A quick release valve (not shown), at the bottom of this space, is used to draw off the melt to leave impurities in the vessel and on the trays. The vessel 9 may be lagged externally.
Patent GB-1104401-A (GB)
Title: Ore processing
Inventor: DEANS THOMAS
IPC: C22B1/00
Filed: 1963-05-10
Abstract: Mineral values (e.g. stronianite and monozite) are separated from carbonatite ore which comprises at least 50% of carbonatite ores which are decomposed at 1000 DEG  C. in which mineral granules of at least 10 microns are embedded by calcining the ore at 900-1000 DEG C., quenching the calcine in water and subjecting the slurry of calcination product in water to attrition scrubbing to separate the mineral values from the fine hydroxide suspension.  A sand fraction is obtained which contains the mineral values present in the original ore in substantially their original sizes. The slurry which is subjected to attrition scrubbing may contain 50% by weight of solids. The sand fraction may be subjected to magnetic separation. A modification of the process involves separation of two or more mineral values having different decomposition temperatures above 1000 DEG  C. by first calcining at 900-1000 DEG  C. and separating a sand fraction as above. A second roasting of the sand fraction follows at higher temperature to decompose the least stable material.  The latter process is particularly suitable for separating stronianite and monozite from ferruginous dolomite as mined in Kangankunde Hill, Malawi.
Patent GB-458659-A (GB)
Title: Improvements relating to floatless carburettors, particularly to those of engines for aircraft
IPC: F02M69/00
Filed: 1936-07-06
Abstract: 458,659. Spray carburetters. SOC. ANON. SOLEX, 190, Avenue de Neuilly, Neuilly-sur-Seine, France. July 6, 1936, No. 18751. Convention date, Jan. 3. [Class 7 (iii)] In a floatless carburetter, particularly for aircraft-engines, fuel is furnished to a primary mixing chamber, in which exists a pressure practically independent of that in the inlet pipe beyond the throttle, by a pump delivering proportionately to the engine speed, the pump supplying a chamber communicating by a calibrated orifice with the feed reservoir and by an orifice which can be regulated, with the primary mixing chamber. The regulation may be manual or automatic dependent upon engine suction, temperature, barometric pressure, &c. The supply of fuel to a chamber 3 disposed in the air passage 1 below the throttle 2 and opening at one end through a passage 6 into the air inlet and at the other, through comparatively small openings 4, into a main Venturi 5, is maintained by an engine driven pump 7 communicating with a chamber 9 having an adjustable restricted overflow 12, 13, 14 back to the fuel reservoir 15, and is controlled by an orifice 10 and needle valve 11. The needle valve 11 is mounted on an adjustable capsule 16 operated by suction communicated by a pipe 19 to vary the fuel flow according to the depression in the passage 1 below the throttle 2. The air supply in the passage 6 may be heated by exhaust gases traversing a chamber 25. In a modification, the needle 11 is operated by a diaphragm exposed on one side to engine suction and on the other, through a liquid medium, to a closed gas container. The needle may also be operated by temperature, barometric pressure, &c. or combinations thereof.
Patent GB-502315-A (GB)
Title: Hand setting devices for watches having a button winder
IPC: G04B27/04
Filed: 1938-06-24
Abstract: 502,315. Watches. JUNGHANS AKT.- GES., GEB. June 24, 1938, No. 18831. Convention date. Ang: 17, 1937. [Class 139] A hand setting device for watches having a button winder d with a displaceable clutch sleeve i mounted on the winding arbor e<1> adapted tu engage alternatively the hand setting gear k or the winding gear f, comprises a resilient lever which can be influenced either by a hand setting lever g actuated by axial displacement of the winding arbor or by a push pin m mounted on the rim of the watch case adjacent, the winding button.
Patent GB-1424546-A (GB)
Title: Multiple drive mechanism
IPC: F16H1/22
Filed: 1973-04-19
Abstract: 1424546 Toothed gearing; bearings JOY MFG CO 19 April 1973 [11 May 1972] 18880/73 Headings F2Q and F2A In a torque-equalizing drive mechanism, a single worm-wheel 10 is engaged by two or more worms 22, 24, each having a separate drive motor assembly 34, 36, which is pivotably supported on the shaft 30, 32, of the worm it drives, and is permitted to pivot through a limited range of movement, with its torque reaction force applied to a rod 52, 54, respectively, and with a linkage assembly interconnecting rod 52 to rod 54 to provide a means for imparting a compensating pivoting movement to the appropriate drive motor assembly for equalizing the torques of the worms. An excess of load torque transmitted by one of the worms gives rise to an increased tensile force in the linkage assembly, initially unbalanced, which produces a pivoting movement of each drive motor assembly in such a direction that the more heavily loaded worm is retarded in its rotation and the other worm advanced, thereby tending to share the torque load equally between them. The linkage assembly comprises a shaft 50 with crank arms 64, 66, coupled by clevises 68, 70 to the torque reaction rods 52, 54, which are hinged to the drive assemblies 34, 36. A spring biasing means 72 includes springs which permit free movement for a limited distance but resist excessive or sudden excursions of the linkage, and encircling stops 76 set end limits to its travel. A load sensing device 74 may be used for load monitoring, or for initiating overload alarm or protection actions. The assembly may be used in a stirring mechanism for rotating raking arms in a settling tank. Bearings.-The worm-wheel 10 is supported on a single rolling bearing 78, Fig. 2, which may include crossed rollers 82, Figs. 4, 5, or which alternatively may consist of a four-point angular-contact ball bearing 86, Fig. 6.
Patent GB-481282-A (GB)
Title: Metal envelope electron tube
IPC: H01J19/42
Filed: 1936-07-08
Abstract: 481,282. Thermionic valves. EGYESULT IZZOLAMPA ES VILLAMOSSAGI R. T. July 8, 1936, No. 18940. Convention date, July 8, 1935. [Class 39 (i)] A metal envelope tube comprises metal electrode system supports mounted on the baseplate, which supports are made of a heat-resisting metal retaining its hardness at least up to 550‹ C. and have a cross-sectional area of at least 1.5 mm.<2>. The supports may be made of tungsten, molybdenum, tungsten-steel, silicon -chrome-nickel, or chrome-nickel-steel. As shown the supports comprise three rods 2 welded to the baseplate 1 and carrying insulating discs 4, 5. The insulator 4 carries a thickened portion 4b into which the electrode anchor wires fit. The anode 3 is held on mica strips 3a from a ring 1b mounted on the base-plate 1. A suppresser grid may be wound on the rods 2. In a modification, the supports are three strips joined at the ends by rings, the structure being formed by cutting away portions of a cylinder. Metal discs carrying the insulators are secured to this frame and may engage the envelope which is drawn hot over them. The anodo may be insulatedly mounted on the frame.
Patent GB-582919-A (GB)
Title: Improvements relating to metal window and like frames
IPC: E06B3/96
Filed: 1944-10-04
Abstract: 582,919. Meta1 window frames. HIGH DUTY ALLOYS, Ltd., and GOLDBERG, A. Oct. 4, 1944, No. 19009. [Class 20 (iii)] [Also in Group XXII] A metal window or like frame is made from a bent strip 3, preferably of Z-section, the junction lying under a fitting such as a hinge 10 which is riveted or screwed to secure the ends. Glazing tees 8 are secured to the flange 1 and glass panels are secured by fillets 14. A bulbous foot 4 is provided on the rib 2 for producing a draught-tight seal in members such as a coupling bar 16.
Patent GB-655506-A (GB)
Title: Improved means for defibrating and grinding paper pulp or other fibrous material
IPC: D21D1/22
Filed: 1948-07-16
Abstract: 655,506. Defibrating paper pulp. LAVISTE, C. July 16, 1948, No. 19111. Convention date, July 18, 1947. [Class 96] [Also in Group II] Paper pulp &c., supplied at 13, is defibrated between bars 6 on a rotor 2 and stator bars 8 supported on rings 12 surrounding the rotor, the bars 8 being spaced apart from each other so as to provide passageways between them, defibrated pulp being propelled through the passageways and into a compartment 10 surrounding the stator, by centrifugal action of the rotor 2. Pulp from the outlet 11 may be re-circulated. In a modified construction, pulp &c. is supplied from both ends of the machine into the interior of the rotor and passes between the bars 6 as well as the bars 8.
Patent GB-571764-A (GB)
Title: Improvements in or relating to vapour electric discharge devices
IPC: H01J13/38
Filed: 1943-11-16
Abstract: 571,764. Electrode materials. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Nov. 16, 1943, No. 19125. Convention date, May 7, 1942. [Class 39 (i)] A starting electrode for a vapour discharge tube consists of a graphite body bonded to a sheath of refractory insulating material in a mixture of boron carbide and carbon, some of this latter material forming part of the active electrode surface. In the form shown in Fig. 11 the graphite body 30 surrounds the sheath 10 and the bonding material 14 is in the form of a tapering sleeve, while in Fig. 15 the sheath consists of an approximately triangular plate 210 on each side of the graphite body 11.
Patent GB-1375237-A (GB)
IPC: B29C48/76
Filed: 1972-04-25
Abstract: 1375237 Powder extrusion BARMAG BARMER MASCHINENFABKIK AG 25 April 1972 [27 April 1971] 19137/72 Heading B5A Thermoplastic powder, e.g. PVC is heated to between its softening and melting points in the first stage 1 of a cascaded screw extruder to compact the polymer into a porous mass without melting, the porous mass is broken up into pieces and fed into a vacuum chamber between the extruder stages where it is de-gassed at a similar temperature before being drawn into the second stage where it is plasticized and extruded. In Fig. 1, grooves in the tip 6 of the screw form strands which are chopped by pins projecting from the barrel. Alternatively strands are formed by a perforated plate 18, Fig. 4, or projecting pins (not shown), attached to the barrel and chopped by pins 19 arranged downstream on a projection 16 of the screw 5.
Patent GB-190191-A (GB)
Title: Improvements in or relating to coffins
IPC: A61G17/00
Filed: 1921-07-15
Abstract: 190,191. Ripper, H. T. July 15, 1921. Coffins.-The long sides of coffins are made of a series of panels secured in recesses in pilasters upstanding from the base. Figs. 5 and 7 show panels F of 3-ply material secured to corner and side pilasters C, E, respectively, and Fig. 7 also illustrates the method of attachment of the latter to the base by means of angle-plates G. As indicated, panels F also form the ends of this coffin. Fig. 8 shows a metal coffin constructed on similar lines, the panels F and the pilasters C, E, having interengaging re-curved flanges f <1>.
Patent GB-728488-A (GB)
Title: Die mounting for crimp sealing machines
Inventor: SWARTZ GEORGE ALBERT
IPC: B65B51/14
Filed: 1953-07-10
Abstract: 728,488. Seaming non-metallic sheet material. IVERS-LEE CO. July 10, 1953, No. 19187/53. Class 42 (1). [Also in Groups V and XVII] In a machine in which layers or strips of sheet material are pressed or sealed together between a pair of relatively-movable crimping dies, at least one of the dies is formed in two parts interconnected by a spherical joint, whereby the operative faces of the dies are self-aligning. If the material is heat-sealable, one or both dies may be heated. As shown, the upper die C comprises parts 6 and 7 separated by a layer of heatinsulating material 8 and secured together by a tubular screw 9, the part 6 being mounted on a pivot 17 so that the die may be swung upwardly for inspection purposes, and the part 7 carrying a serrated die block 46 detachably secured by a screw 48. The lower die D is mounted on guide rods 3 for reciprocation by toggle mechanism (not shown) and includes an upper part comprising two sections 26, 27 separated by a sheet of heat-insulating material 28, and a lower part 25 fitted with a ring 36 having a spherical bearing surface 37. The latter engages a similar surface on the lower race 38 of a ball-bearing 41 whose upper race 40 is secured to the section 26, the centre of the spherical surfaces lying in the plane of the face of the co-operating die block which is secured to the section 27 by a screw 49. The parts of the lower die are held together by a bolt 29 encircled by a spring 35 disposed between the nut 33 and a plate 34 secured to the part 25. To ensure parallelism between the faces of the die blocks, the lower die is fitted with four abutment posts 53 co-operating with screws 52 on the upper die, each screw being provided with a scale 54 for adjustment purposes. The die blocks may be heated electrically by elements 59 connected to bus-bars 61 mounted in extensions of the sheets 8 and 28.
Patent GB-379454-A (GB)
Title: Improved process and apparatus for the combustion of solid fuel in furnaces providedwith grates
IPC: F23M20/00
Filed: 1931-07-03
Abstract: 379,454. Air and fuel supply to furnaces. BYRNE, E. L. W., 329, High Holborn, L o n d on.-(Kraftanlagen Akt.- Ges. ; 2, Bismarckstrasse, Heidelberg, Ger many.) July 3, 1931, No. 19237. [Class 51 (i).] In furnaces using regeneratively heated air the temperature of the air is reduced before being supplied to beneath the grate by passing it through the fuel on the front portion of the grate or through the fuel in the feeding hopper. As shown in Fig. 1, air is forced by a fan 6 through the heater 4 and thence through conduits 8, 9 and a layer of fuel on the front of the grate before entering the space 14 beneath the upper run of the travelling grate 2. If the temperature of the air is not high enough to endanger the grate, the air may be led direct to the grate through the branch conduit 24. Fig. 2 shows a modification in which the air from the conduit 9 is supplied through perforated pipes 16 to the fuel passing downwardly between inclined plates 17, 18 in the fuel hopper. The air enters an outer casing 19 and passes to beneath the grate. In both modifications air may also be led through openings in the furnace wall to the furnace above the grate. Specification 326,551, [Class 51 (i), Furnaces and kilns, Combustion apparatus of], is referred to.
Patent GB-272713-A (GB)
Title: Improvements in centrifugal pumps
IPC: F04D29/22
Filed: 1926-08-04
Abstract: 272,713. Drysdale &. Co., Ltd., and Drysdale, J. W. W. Aug. 4, 1926. Disc - supported - blade pumps; multiple - way impellers; helico-centrifugal apparatus. - An annular partition d divides the inlet of the impeller into two waterways, helical screw-propeller and radial blades f, c being provided respectively in the outer and inner of these waterways. The discharge ends of these passages are so disposed that the directions of discharge of fluid therefrom are radial and approximately parallel to each other and open into a common radial discharge passage h. The liquid may be admitted axially either at one end or at both ends of the impeller.
Patent GB-344319-A (GB)
Title: Improvements relating to hinges
IPC: E05D11/06
Filed: 1930-06-25
Abstract: 344,319. Hinges. McLEAN, J., 12, Woodside Terrace, and KEMP, W. C., 69, Victoria Park Drive North, Scotstoun, both in Glasgow. June 25, 1930, No. 19318. [Classes 65 (i) and 65 (ii).] A stay 4, formed of spring wire, is hinged to the end of one leaf 1 of the hinge and passes through a hole 6 near the end of the other leaf 2. Due to its springiness, the stay bears against the edges of the hole and thus causes frictional resistance to motion of the hinge. The end portions 7, 8 of the stay are so shaped that greater resistance is opposed to movement of the hinge from either extreme position.
Patent GB-977661-A (GB)
Title: Improvements in or relating to the production of film from organic thermoplastic material
Inventor: GERBER KENNETH GEORGE
IPC: B29C55/28
Filed: 1962-05-18
Abstract: 977,661. Heat treating tubular films. METAL BOX CO. Ltd. Feb. 11, 1963 [May 18, 1962], No. 19327/62. Heading B5B.  Sag, bagginess and wrinkles are removed from tubular biaxially oriented organic thermoplastic film by heating the flattened film while drawing it lengthwise over two straight parallel tubes spaced apart the width of the flattened film, each tube being provided along its length with holes and communicating with a source of pressurized warm air so that a cushion of warm air is maintained between those portions of the tubes which would otherwise be in sliding contact with the edge portions of the tubular film. As shown in Figs. 1 and 2, the oriented tubular film is flattened by the draw nip rolls IR and drawn over a pair of parallel spaced apart pipes 3 located in a heating chamber 2. During its passage over the pipes 3, the cross-sections of the tubular film assumes an oblong generally rectangular cross-section as shown in Fig. 3. The upper ends of the pipes 3 are closed and their lower ends communicate with a source of warm pressurized air and are each provided along their length with two rows of holes 7 permitting the maintenance of a cushion of warm air 8 between the portions of the outer surfaces of the pipes and the inner surfaces of the film which would otherwise be in sliding contact with one another. The axes of the holes 7 in the two respective rows in each pipe 3 are located in planes 9 forming an angle somewhat less than 180 degrees, preferably 160 degrees facing the pipe surface 4 and equspaced about a plane 10 bisecting the surface 4. The heating of the film 1 during its passage through the chamber 2 (Fig. 4) may be effected by heated air entering the chamber at 13 and leaving it at 14. The slot-shaped openings at the opposite ends of the chamber 2 for the entry and outlet of the film 1 are provided with flexible seals 12. After leaving the chamber the edges of the tubular film are slit by the rotating knives 15 to form two webs 16, 17 which are drawn from the pipes 3 by co-operating rollers 18 to 21 and wound up on reels 22, 23.
Patent GB-193779-A (GB)
Title: Improvements in lubricators
IPC: F16N11/00
Filed: 1922-07-14
Abstract: 193,779. Empire Engineering Co. (Manchester), Ltd., and Berry, C. H. July 14, 1922. Force-feed lubricators. - Lubricant is forced from a cylinder A by a piston B carried on a screwed rod C operated by a worm E and wormwheel d driven intermittently by a ratchet and pawl, the worm E being carried on a pivoted lever H so that it can be automatically thrown out of gear with the worm-wheel d when the plunger has reached a predetermined point of its stroke. A lever F is pivoted in the delivery end of the cylinder and one arm f<1> contacts with a rod G which causes the worm E to be thrown out of action when the piston B contacts with the arm f of the lever F. As shown, the worm E is thrown out of gear when a link h<4> on the lever H is moved by the rod G out of contact with a projection h<5> on the cylinder. The link h<4> may be replaced by a lug on the lever H adapted to bear on the rod G and to engage a notch therein when the plunger has reached the desired position in its stroke.