baber/WOPTO huggingface dataset:
Patent GB-407301-A (GB)
Title: Improvements in and relating to chimney cover plates
IPC: F23L17/02
Filed: 1932-06-06
Abstract: 407,301. Chimney tops. VIRAG, A., and SCHIFFER, H., 17, R÷kk Szilard Ucca, Budapest. June 6, 1932, No. 15965. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 7, 1932]. [Class 25.] A chimney top comprises a block 1 of concrete or similar material having a central vertical smoke bore 2 and a number of inwardly tapering air bores 3 extending from the sides of the block into the central bore 2 in an upwardly inclined direction.
Patent GB-654363-A (GB)
Title: Preparation of polynitroparaffins
IPC: C10L1/22
Filed: 1947-06-17
Abstract: A polynitroparaffin having from three to five carbon atoms in which at least two nitro groups are attached to other than primary carbon atoms is produced by a process comprising reacting with a nitrating agent as hereinafter specified a mono-nitroparaffin or a polynitroparaffin having at least one less nitro group than the polynitroparaffin which is to be produced; the said process being carried out at a temperature of 150 DEG  to 250 DEG  C. and at a pressure exceeding about 150 pounds per square inch, the said nitroparaffin used as starting material having from 3 to 5 carbon atoms and having each nitro-group attached to other than a primary carbon atom, and also having at least one hydrogen atom attached to other than a primary carbon atom.  The nitrating agents used are nitric acids, which may contain a small proportion of sulphuric acid insufficient to oxidize the nitroparaffin, anhydrous nitric acid, oxides of nitrogen higher than NO, such as NO2, N2O3, N2O4 and N2O5. Nitroparaffin reactants mentioned are 2-nitropropane, 2-nitrobutane, 2-nitropentane, 3-nitropentane, 2 - methyl - 3 - nitrobutane, 2 : 3 - dinitrobutane and 2,2,3-trinitropentane. The use of a diluent such as water, nitrogen, CO2 or paraffins such as butane or propane is desirable.  Space velocities in excess of 0.1 are generally used. Reactors lined with inert materials are preferred, e.g. stainless steel or high-nickel steels, packed, if desired, with inert surface materials such as glass beads or porcelain chips.  Materials promoting the decomposition of the charge materials are iron, activated alumina, wood charcoal and various synthetic alumina silica synthetic materials.  In examples a 2-nitro-propane-nitric acid mixture is pumped through a preheater into an inert glass bead filled reactor of stainless steel, using various space velocities and elevated temperatures and pressures, the products are condensed and 2,2-dinitro propane is separated.  Unreacted p  charge materials may be recycled with or without fresh 2-nitropropane and/or nitric acid. The polynitroparaffins obtained in the present process form resins with alkali polysulphides and are ignition-improving agents for diesel fuels, 2,2-dinitropropane being particularly suitable. Specification 527,031 is referred to.
Patent GB-613477-A (GB)
Title: Improvements in stoves for steam bath-rooms
IPC: F24F6/04
Filed: 1946-05-27
Abstract: 613,477. Stoves for steam bath-rooms. BROADAHL, T. May 27, 1946, No. 16025. Convention date, March 13, 1943. [Class 81(i)] A stove for a steam bath-room comprises a container 4 of substantially pear or drop-shaped cross section containing heat accumulating material and arranged in the upper part of a housing 3 forming the combustion chamber. whereby relatively narrow outlet channels 5 for the combustion gases of uniform cross section are formed which converge at the top of the housing towards the stove flu 6. Water for conversion into steam is admitted into the container 4 through one or more jet tubes 15 and the steam issues through one or more relatively large slotted openings (not shown in Fig. 3). The combustion space of the stove is situated at 9 and the ash pit at 8. The container may be provided with one or more vertical through channels 16 to increase the heat absorbing area. The housing may be provided with surface ribs 17.
Patent GB-179453-A (GB)
Title: Improvements connected with the gearing of clocks, watches, speedometers, gramophones, and like mechanism
IPC: G04B13/02
Filed: 1921-06-10
Abstract: 179,453. Baker, T. R. June 10, 1921. Securing toothed wheels on shafts.-In gearing for clocks, watches, speedometers, gramophones, &c., a toothed wheel b having a circular bore c is secured by a driven fit on its spindle a, which is formed with longitudinal grooves a<1> capable of serving as pinion teeth. The ends of the spindle a are turned down to constitute journals a<2>, and a gap d may be formed if necessary, to clear another member of the gear-train. The arrangement permits the wheel b to be turned over when the working-flanks of its teeth are worn, or to be shifted axially when it has worn a groove in the pinion with which it engages.
Patent GB-514979-A (GB)
Title: Deodorant powder
IPC: A61L9/01
Filed: 1938-05-31
Abstract: 514,979. Deodorant powders. JACKSON, L. MELLERSH-. (Jamieson & Co., C. E.). May 31, 1938, No. 16264. [Class 81 (i)] A deodorant powder comprises zinc peroxide and a moisture absorptive mineral silicate, e.g., kaolin. Astringent substances, e.g., zinc oxide and " body " substances, e.g., chalk and talcum are also incorporated in the composition.
Patent GB-1359169-A (GB)
Title: Articles incorporating glass sheets
IPC: C03C21/00
Filed: 1971-05-21
Abstract: 1359169 Glass laminates GLAVERBEL 21 May 1971 16287/71 Heading B5N [Also in Division Cl] A panel incorporating a plurality of sheets secured together in facing relationship and ineluding at least one, first, sheet of glass or glassceramic which provides an exposed face, is characterized in that the first sheet has been chemically tempered and is held in the panel in an elastically flexed condition such that compressive stresses due to the flexed condition are present in that side which provides the exposed face. Preferably the second sheet is also of glass or glass-ceramic, but as shown in Figs. la, 1b, a sheet of chemically tempered glass 3, which has been curved, is flexed to a flat condition and secured to a wooden panel 4. Instead of the wooden panel, an asbestos-cement panel was used, coated with a decorative enamel. The glass sheet secured to the enameled side by an epoxy resin glue. Alternatively two oppositely curved glass sheets may be secured either side of an intervening plastics sheet and form a flat panel. As shown in Figs. 4a, 4b, sheets 13, 14 of similar curvature are secured to either side of a sheet 15 of polyvinylbutyral and the laminate then secured in a frame 16 so that the panel is held in a state of reduced curvature. Alternatively, the sheet 13 may have a somewhat smaller radius of curvature and the resultant laminate is at a curvature between that of the two sheets. The glass sheet 14 may be replaced by an acrylic plastics sheet and the glass sheet 13 and sheet 14 of similar curvatures secured together by a layer of neoprene or a nitryl or silicone resin or direct by using heat and pressure, the laminate then being mounted in the frame 16. The chemical tempering may utilize the substitution of larger or smaller ions, preferably from molten salts, and may be on one side only, or to a lesser extent to give different compressive stresses on the two sides. Preferably prior to chemical tempering, the glass sheet may be fire-polished or surfaced by contact with a fluorine-containing medium or mechanically polished. A weakening treatment may also be used as by abrasion with material having a given size of #10 microns. Iron oxide, cerium oxide or alumina or a mixture of two or more are suggested. The chemical tempering for soda-lime glasses was by baths of LiNO + NaCl; KNO 3  and for a glass-ceramic, a bath of LiNO 3  + NaCl. The enamel used was, in percentages by weight: SiO 2  45; B 2 O 3  14; PbO 20; ZnO 10; Li 2 O 11. The glass-ceramic was SiO 2  48; Al 2 O 3  32; Na 2 O 10; CaO 2; TiO 2  8. Glasses were (1) SiO 2  68; Na 2 O 22; CaO 9: (2) SiO 2  71; Na 2 O 12; CaO 12; Al 2 O 3  2; MgO 2: (3) SiO 2  64À7; Na 2 O 19À9; CaO 0À14; Al 2 O 3  0À7; MgO tr.; B 2 O 3  14À5; Fe 2 O 3  0À06. Specifications 1,359,165, 1,359,166 and 1,359,168 are referred to.
Patent GB-332681-A (GB)
Title: Improved grain scalper and aspirator
IPC: B07B4/08
Filed: 1929-05-27
Abstract: 332,681. Mjolsness, H. May 27, 1929. Rotary sieves.-Apparatus for scalping grain comprises a vertical cylindrical screen 28 rotating inside a hopper 47 to which the grain is fed on the outside of the screen, and means for aspirating the grain as it falls from an annular discharge opening 43. The screen is carried on a vertical shaft 18 by the spider 27 and frame 29, 30,'31. The grain is fed to one side of the screen, and sticks and other large impurities are carried to a discharge spout 51. The discharge opening 43 is formed by an inwardly directed flange 41 attached to the screen and the edge of a conical plate 39 attached to a cylinder 33 carried loosely by a sleeve 35 on the shaft 18. Normally the sleeve is stationary. Accumulations of grain in the discharge chamber bear on an arm 44 causing the sleeve 35 to turn and, by the co-operation of a cam surface 36 and fixed abutment 37, to lift cone 39 and enlarge the discharge opening. A suction fan connected to a flue 10 on the casing 11 draws air through the grain as it falls from the discharge opening and removes the light impurities which may be collected in a cyclone separator. The scalped grain is delivered through openings in a conical plate 29 enclosing the gearing of the shaft 18 and may be passed to a grain separator.
Patent GB-1386740-A (GB)
Title: Breech mechanism for moulding machines
IPC: B29C45/67
Filed: 1973-04-05
Abstract: 1386740 Mould closing devices IMPROVED MACHINERY Inc 5 April 1973 [21 April 1972] 16313/73 Heading B5A A moulding machine comprises first and second platens 10, 24 one of which is movable, at least one tie rod 38 projecting from one platen towards the other, a plurality of breech blocks 46, 48 (Fig. 5) for gripping the tie rod 38 therebetween and means mounting the breech blocks for movement both longitudinally and laterally of the tie rod. The mounting means comprises carriages 62 slidably mounted on rods 64 by means of separate bearing shoes 66. Flat surfaces 74 on the carriages 62 slidably engage flat surfaces (70), Fig. 3 (not shown), on the shoes 66. The breech blocks are moved towards each other to grip the tie rod 38 by means of fluid operated piston and cylinder actuators 76, which are supplied from the same source so as to produce equal oppositely directed forces on the breech blocks. The breech blocks 46, 48 and the ends 54 of the tie rods 38 are grooved as at 56, 58. The invention is applied to an injection moulding machine (Fig. 1) wherein the platen 24 is suspended by a supporting shoe 26 from a guide track 28 which is supported on posts 30. Initial closing of platen 24 is effected by a piston and cylinder motor 36. Final clamping pressure is applied by a "load cell" 92 (Fig. 5) to which fluid is supplied through a passage 106. Movement of the tie rods 38 is cushioned by pistons 98 in cylinders 96. Cylinders 96 also contain pistons 100 to assist initial opening movement of the mould. Operation of the mould closing means is controlled by limit switches 102, 104, 108.
Patent GB-554133-A (GB)
Title: Improvements in pumps
IPC: F04B15/02
Filed: 1941-12-18
Abstract: 554,133. Pumps for concrete and the like. CHAIN BELT CO. Dec. 18, 1941, No. 16322. Convention date, Dec. 27, 1940. [Class 102 (i)] Pumps for concrete and the like of the kind described in Specifications 412,282 and 469,148 are so constructed that an increased output is obtained by combining the outlets of two or more pumps together and driving these from a common source in such a manner that either of the pumps may be put out of action without interfering with the outlet of the other pump or pumps. As shown two pump units R. L of the kind described in Specification 469,148 are driven from a motor 22 which drives by a multi-pulley 26 and reduction gearing 38, 39 a shaft 40 to which is fixed a clutch element 46 with which can be made to engage two pinions 45 which are in constant mesh with pinions 17 serving to drive the actuating cranks 15 of the pumps. Either of the pinions 45 may be slidden out of gear with the clutch 46 by means of lever and link mechanism so arranged that the operating levers are moved in the same direction to throw out the drive to either pump. Specification 303,573, [Class 102 (i)], also is referred to.
Patent GB-1385525-A (GB)
Title: Conductor selection matrices
IPC: G09G3/28
Filed: 1972-04-10
Abstract: 1385525 Displays and code conversions OWENS-ILLINOIS Inc 10 April 1972 [19 April 1971] 16355/72 Heading G4H A system for supplying operating potentials to a load device (e.g. a gas panel display) uses row and column selection matrices, the disclosure being essentially as in Specification 1,385,524 (which is referred to ). The claims are limited to the features of claim 1 of the latter Specification with the additional limitation to use of a transistor for applying a pulse potential referred to.
Patent GB-1456602-A (GB)
Title: Mandrel and valve installing apparatus
IPC: E21B23/03
Filed: 1974-04-11
Abstract: 1456602 Wells &c PERRY R BASS INC and SID W RICHARDSON FOUNDATION 11 April 1974 [25 April 1973] 16373/74 Heading E1F A well tubing mandrel 12 has an offset pocket 16 with a valve seat 18, a sleeve 22 located in the lower portion of the mandrel adjacent the pocket 16 and having an inclined guide surface 26 leading to a slot 24 for orientating valve handling apparatus 20, and a shoulder 28 for actuating the valve handling apparatus 20. The valve handling apparatus includes a support body 30 attached to a wire by which it is lowered and raised, a shifting arm 32 which is pivoted to the body 30 at 29 and a valve handling support 34 pivoted to he arm 32 at 31 and which carries a valve 19 or a retrieving tool (not shown). The arm 32 is held in an upright position by an abutment 60 (Fig. 2) until the abutment is moved downwardly (relative to body 30) which allows a spring loaded plunger 61 to swing the arm 32 outwardly so that the valve 19 is positioned above pocket 16. The abutment 60 is mounted on a rod 44 which is connected by a shear pin 46 to a spring loaded member 42 carrying a key 48. The apparatus is operated by pulling upwardly on the wire until the key 48 engages shoulder 28 on the mandrel 12, thus releasing arm 32 and allowing it to swing outwardly. The apparatus is released by continued pulling. on the wire which shears pin 46 and allows surface 70 on the body 30 to engage an inclined face 58 on the key 48 to retract the key 48. The apparatus 20 is correctly orientated in relation to the off-set pocket 16 by the guide surface 26 which guides a second key into the slot 24 in the sleeve 22. The second key can be retracted by an arrangement similar to the mechanism for retracting the first key 48. Both keys are pivoted on emergency shear pins which can be sheared if the key retracting mechanisms fail.
Patent GB-240564-A (GB)
Title: Improvements in templets for woodworking machines
IPC: B23Q35/44
Filed: 1925-04-08
Abstract: 240,564. Rose, J. F. April 8, 1925. Slotting.-In an adjustable templet for slotting staircase stringers or for like operations a removable part is provided to allow of the corresponding adjustment for the nosing.
Patent GB-733925-A (GB)
Title: Motor driven vehicle for climbing steep inclined or vertical surfaces
IPC: B62D57/04
Filed: 1952-07-01
Abstract: 733,925. Motor vehicles. SAULNIER, R. July 1, 1952 [July 5, 1951], No. 16567/52. Classes 79(2), 79(3) and 79(5). [Also in Group XXXII] In a terrestial vehicle comprising a body 1, Fig. 2, carrying a motor 4 connected to rolling elements 2, a steering mechanism, and a power-operated, groundwardly-directed pressure producing device adapted to generate, by reaction on the surrounding air, respective pressure components perpendicular to, and parallel with, the ground, the position of the device is so adjustable that the parallel-to-the-ground component may be oriented into any desired radial direction. The motor 4 drives all four wheels 2 through worm gearing 6, 8. An electric motor 9 drives the airscrew 3 via a universal joint 12. The inclination of the shaft 15 of the airscrew 3 may be varied by the action of hydraulic units 14a, 14c. The cylinders of the units 14a, 14c may be connected with a pressure-fluid pipeline 23 and exhaust pipe-lines 24a or 24b, by the action of a valve 22 coupled to a control lever 26. Laterally-disposed hydraulic-units (Fig. 3, not shown) similar to the units 14a, 14c, act on the shaft 15 to control its inclination in the transverse direction. The laterally-disposed units are controlled by a second valve 22 which is displaceable by rotation of the road-wheels steering wheel 29 acting through worm gear 28, 27. The steering wheel 29 may be moved forward about a pivot 29d so as to disengage the worm gear 28, 27. The speed of the motor 9 is varied by the action of a pendulum 34 which is linked to the moving contact 31 of a rheostat. The pendulum is damped by a dash pot 35. In another construction (Fig. 5, not shown) the airscrew is replaced by a jet motor mounted on a turntable which can be rotated by the action of a motor. The jet motor may comprise a plurality of jets or may be replaced by a rocket device. The wheels 2 may be replaced by tracks or chains. Specification 600,401 is referred to.
Patent GB-701316-A (GB)
Title: Improvements in or relating to caravan or other trailer chassis
IPC: B62D63/06
Filed: 1950-07-04
Abstract: 701,316. Spring suspensions; arrangement of wheels and axles. ALLEN, J. B. Sept. 21, 1951 [July 4, 1950], No. 16655/50. Class 108(2) A trailer chassis comprises a pair of supporting wheels located on opposite sides of the chassis and to the rear of. -the centre of gravity thereof, a road wheel or wheels at the forward end of the chassis, lever means resiliently connecting the road wheel or wheels to the chassis, which wheel or wheels is or are capable of turning about a substantially vertical axis, and a draw-bar for attachment to a towing vehicle, hinged to the chassis. In the arrangement shown in which a chassis 4 of a caravan 1 is mounted on a pair of road wheels, a triangular chassis structure 7 which is braced to the chassis 4 by transverse and vertical members 8 and 9 respectively, carries at or near its apex, a bearing for one end of a lever 9a the other end of which is hinged to one end of a lever 10 supporting an axle for a single wheel or a pair of wheels 12, 13. The levers 9a and 10 are urged apart by a spring 11. A forked draw-bar 15, 16 is hinged to the chassis or as shown to the trailer 1 and permits complete rotation of the wheel or wheels 12 13 about a vertical axis through the bearing of the lever 9a. Hydraulic dampers 17 are connected between the chassis or member 8 and the draw-bar. The structure 7 is provided with a handle 21 for a parking brake. Mudguards 24 may be mounted on the structure 7.
Patent GB-892639-A (GB)
Title: Improvements in and relating to heat exchangers
IPC: F22B37/20
Filed: 1960-05-11
Abstract: 892,639. Steam superheaters. BABCOCK & WILCOX CO. May 11, 1960 [May 11, 1959], No. 16709/60. Class 123(3) A superheater or economiser disposed in a gas pass 20 of a steam boiler and comprising upright platens of nested sinuous tubes with limbs horizontally extending across the pass connected by nested return bends is supported by upright, fluid-cooled tubes 21, 22 which line the pass so as to allow relative movement between the horizontal limbs. In the form shown in Figs. 1, 2 and 5, the outermost return bends 24A, 25A of the tubes 24, 25 have welded-on U-shaped lugs 28 which engage over upwardly extending fingers 27A of brackets 27 welded to the tubes 21, 22, whilst the straight portions of the tubes are supported from each other on chair castings 29 welded only to the subjacent tube so as to allow the upper tube to slide relatively to the lower. Where the platens are not co-planar with the vertical support tubes the bracket 27 may be welded to adjacent tubes. In a further modification, where the tubes of the platen are so long that they cannot support their own weight, an intermediate support is provided as shown in Figs. 6 and 7. This support comprises a row of fluid-cooled tubes 50, each having a pair of welded-on brackets 52. Support bars 53 resting on the brackets extend transversely under the platens and carry support castings 55 on which the lowermost platen tubes rest. The upper tubes are carried by the lowermost tubes on chairs 57, side spacers 58 being provided to hold the platens upright.
Patent GB-801306-A (GB)
Title: Improvements in and relating to means for controlling the density of sludge
IPC: B03B13/00
Filed: 1957-05-27
Abstract: 801,306. Gravity-separation apparatus. TROMP, K. F. May 27, 1957 [July 24, 1956], No. 16726/57. Class 46 [Also in Group II] For automatically controlling the maximum density of the relatively clear over flow and/or the minimum density of the thicker under flow from a thickener, settler or other receptacle containing a suspension, the receptacle is provided with two weirs, one stationary and the other movable vertically under the control of the density of an upper layer of the suspension, for example by means of a float. As shown, suspension enters a thickener 8 through a shaft 6, and a float 12 determines whether the clear overflow leaves over a weir 11 carried by the float, or over a fixed weir 9 for recycling by a pump 4. The thick underflow is pumped into a second receptacle 19 in which a float 22 determines whether it leaves over a fixed weir 20, or over a weir 21 carried by the float to be returned to the bottom of the thickener 8. The degree of control may be varied by adding or removing weights to or from the float-carrying arms 13, 23.
Patent GB-1384941-A (GB)
Title: Environment affecting packages
IPC: B29C55/06
Filed: 1972-04-12
Abstract: 1384941 Environment-affecting package CELANESE CORP 12 April 1972 [15 April 1971] 16780/72 Heading A5G [Also in Division F4] A dehydrating agent or an insecticide is enclosed by a normally waterproof porous plastics film to form a package, the plastics film being a polymer (e.g. polypropylene or polyethylene) having a crystallinity above 20%, of 100 to 12,000 Angstrom units, a nitrogen of 100 to 12,00 Angstrom units, a nitrogen flux of 5 to 400, an elastic recovery at 50% extension of more than 40%, and a total surface area per unit volume of 5 to 100 square metres per cc. The film is made by the process of Specification 1287504 or 1287505 or 1143474 or 1180066 or 1198695. Superimposed - layers of film may be sealed together to enclose the substance directly, or to form a pouch which is then filled and sealed. The film may be cross-laminated or reinforced with a large-pore sheet as in Specification 1339207. Examples are described in detail in which the plastics was hot-extruded, drawn down, stretched, annealed, stretched and heat set; packages formed from this film were filled with phosphorus pentoxide or paradichlorobenzene.