baber/WOPTO huggingface dataset:
Patent GB-1023941-A (GB)
Title: Method and apparatus for shot-blasting
Inventor: NAISH WILLIAM JENKINS
IPC: B24C7/00
Filed: 1962-01-18
Abstract: 1,023,941. Delivering measured quantities of granular material. RHEEM LYSAGHT Ltd. Jan. 18, 1963 [Jan. 18, 1962], No. 1871/62. Heading B8N. [Also in Division B3] Shot-blasting apparatus comprises a hopper 9, the discharge opening 10 of which is provided with a valve 11 normally closed by a spring 12. A metering device comprises an inclined shoot 14. Its lower end is above the hopper 9 and has in its lower portion a circular port normally closed by a hinged shutter 16 loaded by a spring 17. An arcuate deflector shoot 19 opens and closes the upper end of the shoot 14. The shutter 16 and shoot 19 are connected so that one is open and the other closed; the valve 11 is opened when the shutter 16 is opened. Actuation is by an air cylinder 32. A bucket elevator continuously lifts shot and deposits it into a shoot 36 whence it drops into an agitated vessel 40 having a sieve to reject large objects. The shoot 36 is moved about its pivot 37 to distribute shot evenly over the surface of the sieve 41. Sieved shot falls into the shoot 14. The amount of shot dispensed can be predetermined by adjustment of a weir 18 so as to vary the effective area of the floor of the shoot 14. Operation.-Shot continuously falls down the shoot 14 against the shutter 16 which is closed and piles up against it, lying on the floor of the shoot until the edge of the pile moving back up the shoot reaches the free edge of the weir 18. After this, little extra shot is held in the shoot 14, most of the incoming flow falling from the free edge of the weir or to the surface 42 and thence to a collection area at the base of the elevator so that it feeds back into the elevator for recirculation. A shot-blasting cycle is initiated by an operator when a workpiece has been placed in position; the cycle is electrically controlled, the circuitry providing suitable delays. Admission of air to the cylinder 32 first moves shoot 19 to closed position, so that falling shot is diverted to the bottom of the elevator via surface 42, and subsequently opens the valve 11 and then moves the shutter 16 to open position allowing the contents of the metering device to escape. When sufficient time has elapsed for the charge of shot to have emptied out of the hopper the return stroke of the air cylinder causes the parts to return to their original positions.
Patent GB-725942-A (GB)
Title: An improved extrusion press more particularly for cable sheathings
IPC: B21C27/02
Filed: 1953-01-22
Abstract: 725,942. Extruding. FELTEN - GUILLEAUME CARLSWERK AKT.-GES. Jan. 22, 1953 [April 4, 1952], No. 1899/53.. Class 83 (4). An extrusion press, particularly for sheathing cables with aluminium has a billet container 1 with a hollow cylindrical lining 3 whose inner surface is provided with a depression or depressions for receiving any residue air present in the container during the extrusion process. The depressions may comprise a series of annular grooves 4 or helical grooves, which grooves are of triangular or semi-circular cross-section. Alternatively the liner may have a smooth frusto-conical bore, Fig. 2 (not shown), which diverges towards the entrance end of the container to form an annular space between the said inner surface and the press plunger 2. During the extrusion both aluminium and air are pressed into the depressions where the air penetrates into the aluminium. This aluminium is sheared from the remainder of the billet by the sharp edge of the plunger. The lining may be in one or several parts but preferably it is divided longitudinally into halves.
Patent GB-328986-A (GB)
Title: Improvements in and relating to soldering irons and the like
IPC: B23K3/02
Filed: 1929-10-21
Abstract: 328,986. Birnie, F. R. Oct. 21, 1929. Blowpipe burners; burners, applications of. - A soldering iron of the type having a hollow bit heated by gas and forced draught supplied through a hollow handle has a fitting which is secured to the handle extension and has a tube of smaller diameter projecting into the bit which is secured to the base of the fitting. The gas and compressed air is supplied through nozzles c, d connected to concentric tubes b, e. A fitting f screwed on the tube b and locked by a nut h is screwed at f<2> to receive a hollow bit j and is provided with a. tube g to surround the outlet orifices of the tubes b, e. The fitting has vent holes f' and the bit has exits for the products of combustion in the form of slots j<1> and holes j<2>. The tool may be used as a blow lamp by removing the bit and as a brazing pipe by screwing a nozzle on to the end of the tube b after removing the fitting.
Patent GB-1009564-A (GB)
Title: Process for generating silicon tetrafluoride
IPC: C01B33/08
Filed: 1964-01-16
Abstract: An aqueous solution of H2SiF6 is vaporized to give SiF4, HF and water vapour, which are reacted with crystalline silica at 250-450 DEG  F. to convert the HF to further SiF4 and water vapour.  The process may be conducted by passing the vapours through a bed of silica, or by suspending finely divided silica in the vapours, so that the molar ratio of HF to silica is not above 4 : 1.  The suspension may be produced by flash vaporization of a slurry of finely divided silica in aqueous H2SiF6, e.g. by heating under superatomospheric pressure to above the normal vaporization temperature of H2SiF6 and then injecting into a zone of decreased pressure.  The unreacted silica separated may be resuspended in the vapours.  The SiF4 may be hydrolysed in the vapour phase to SiO2.  The silica used may be quartz or novaculite.  The suspension of silica in H2SiF6 may be produced from SiF4 and water, from silica and H2SiF6 solution, from silica and HF solution, or an unfiltered acid derived from a superphosphate process may be used. Specifications 726,095 and 975,073 are referred to.
Patent GB-1086241-A (GB)
Title: Foundry moulding materials
Inventor: COOPER MICHAEL JOHN
IPC: B22C1/18
Filed: 1965-01-16
Abstract: In a method of controlling the quality of castable sand mixtures used in the production of foundry moulds and cores, the mixtures employing water, a surface active agent, and (i) a primary bonding agent and (ii) a secondary bonding agent or hardener, samples of (i) and (ii) are mixed together and their setting time determined, and the result of this test is employed in modifying the composition of (ii) to bring the setting time of the sand mixture to within acceptable limits.  Agent (i) is commercial sodium silicate, e.g. 39.4 degrees Baume, and (ii) may be a material containing predominantly dicalcium silicate, e.g. a residue from iron, steel, or ferrous alloy metallurgical processes; blast furnace slag cement; a white falling slag from the Pidgeon magnesium process; potassium silicofluoride; silicon; ferrosilicon; or calcium silicate.  To (ii) may be added a further material of greater reactivity, e.g. Portland cement.  The weight of water may be 2% of that of the sand, and that of the surface active agent, 0.1%.  The components are mixed, e.g. in a rotating-paddle mixer, to give a viscous flowable stable foam which sets to a solid mass.
Patent GB-747038-A (GB)
Title: Improvements in or relating to frame walls for straight-bar knitting machines
Inventor: SCHUESSLER RICHARD
IPC: D04B15/00
Filed: 1954-01-22
Abstract: 747,038. Knitting-machines. DEUTSCHE COTTON-MACHINENFABRIK GES. Jan. 22, 1954, No. 2050/54. Class 74 (2). The cross frames of a straight-bar machine are composed of two parts 1, 2, the lower part 1 carrying the front and rear rails 6, 5 and the upper part 2 being secured to the rails.
Patent GB-1028952-A (GB)
Title: Rectilinear-motion bearing
IPC: F16C33/54
Filed: 1965-01-18
Abstract: 1,028,952. Bearings. ELASTIC DIE ENGINEERING CO. Jan. 18, 1965 [Nov. 6, 1964], No. 2066/65. Heading F2A. A rectilinear-motion bearing comprises inner and outer members 11, 15, Fig. 1 (not shown) with rollers there between, the rollers having convex-shaped cylindrical portions A and B which engage the inner surface of the outer member 15 and a concave-shaped cylindrical portion C which engages the outer surface of the inner member 11. The rollers may be relieved at points 2, 3, 4 and 5 to provide clearance and are spaced by a cage 25, Fig. 2 (not shown), which is split for ease of manufacture. The inner member 11 may be split at 57, Fig. 6 (not shown).
Patent GB-590211-A (GB)
Title: Methods of and means for rolling annular metal bodies
IPC: B21D22/14
Filed: 1945-01-26
Abstract: 590,211. Rolling annular bodies. STANDARD TELEPHONES & CABLES, Ltd..Jan. 26, 1945, No. 2089. Convention date, Jan. 31, 1944. [Class 83 (iv)] Skew-rolling.-An annular part 30 is formed with a feather-edge by rolling between a freely rotatable roll 98, in contact with the inner periphery of the work, and a surrounding roll mounted in a ball-race housing and driven through a friction plate 88 by a V-belt pulley 90. The work is clamped to a freely rotatable support 20 through a shoulder 28 on an adaptor 22 by threaded spindle 110. The external roll assembly is carried by a slidable member 76 in which is journalled a threaded spindle 102 with hand wheel 106, the spindle engaging an internally threaded pinion 64, located between stationary racks 60 and 62. The carriage 76 is resiliently mounted on the frame 38 through springs at 5 and slide 48 interposed between the carriage and the frame, slide 48 being provided with grooves to engage tongues on the frame to allow vertical movement, and with tongues to engage grooves on the carriage to allow horizontal movement. On turning hand wheel 106, the carriage is fed forward, bringing roll 84 in contact with the work until limited by stops 108, whereby a thin annulus is partly divided from the work. Further rotation of the hand wheel 106 locks the pinion 64 and spindle 102, causing the pinion to roll down the racks 60 and 62, thereby moving the roll 84 downwards and turning down the material for the further edge. Slight reversal of the hand wheel releases the locked pinion and spindle, whereupon springs 50 return the carriage to the horizontal position as determined by stops 56. The operation is repeated until the feather edge is complete. The inner roll 98 is slightly conical and the roll 84 is tilted with the frame 38 by screws 42 to produce the feathering of the edge. A yoke 58 working in conjunction with a threaded extension of rack 62 permits the initial alignment of the roll 84 with the work.
Patent GB-875403-A (GB)
Title: Filtering apparatus for liquids
Inventor: MITCHELL IAN GEORGE GRAHAM
IPC: B24B55/02
Filed: 1959-01-20
Abstract: 875,403. Liquid filters ; liquid circulatory systems. INDUSTRIAL VACUUM CLEANERS Ltd. Feb. 26, 1960 [Jan. 20, 1959], No. 2120/59. Class 46. A liquid filtering apparatus, for use in liquid circulating systems, comprises a bore 1 with a tank mounted thereon and having an upwardly projecting filter chamber 3 whose outlet compartment, separated from the inlet compartment 4b by a filter element E supported on a resilient perforated wall 4 of conically re-entrent truncated cone form, is in direct communication with the tank. A centrifugal pump 16 driven by an electric motor 17 is arranged to deliver the liquid, to be filtered under pressure, to the inlet compartment and there to force it through the filter element E. A bleed passage 23 carries air trapped in the inlet compartment 4b, and a small quantity of liquid, back to the suction side of the pump 16, the cross-section of the passage 23 being too small to materially affect the performance of the pump 16, but sufficient to prevent accumulation of air in the inlet compartment 4b. The filter wall 4, which flexes under changes of pressure in the inlet compartment 4b and therefore tends to cause the filter element E to shed accumulated material, has a radially directed annulus A fitted with a plastic gasket G having a flap F overlapping the filter E, the gasket G cooperating with the radial flange B and a flexible gasket H, registering with a circular groove in the detachable lid 5 to ensure a pressure tight filter chamber 3. Any liquid which might leak past the gaskets G and H is collected in a circular groove J and returned via an overflow pipe K to the pump 16. An elbow 7 which forms the end portion of the flexible inlet pipe 8 from the pump 16 fits into a central aperture of the lid 5 and carries a pressure gauge 9, a pressure sensitive switch 9a and a pair of trunnions 10 by which it is pivotally secured between the tines of a bifurcated arm 11, Fig. 1, (not shown), pivoted at 12 to a bracket 13, rigid with the filter chamber 3, the weight of the lid and its associated parts being balanced by the tensional force of the spring 14. A flexible pipe 21 connected to the inlet aperture of the pump 16 has a flange for connection to the outlet passage of a machine tool using liquid coolant which may be pumped to the machine tool by a second pump fixed into the tank through an aperture, another aperture being used for inspection and refilling of the tank with liquid coolant. The electric motor 17 is controlled by switchgear responsive to the pressure in the inlet compartment 4b through the pressure responsive switch 9a. The lid 5 has a number of outwardly directed peripheral tongues C which on rotation of the lid 5 lock in to position beneath their counterparts D protruding inwards from the upper periphery of the filter chamber.
Patent GB-773415-A (GB)
Title: Machine for assembling screw-threaded components
Inventor: CHRISTIE ROBERT KELVIN
IPC: H01T21/02
Filed: 1955-01-25
Abstract: <PICT:0773415/III/1> <PICT:0773415/III/2> In a machine for assembling sparking plugs (see Group XXII), a drum 20 is continuously rotated by a motor 30 and carries units 41 each having a sprocket 55 engaging a stationary chain 212 to rotate a holder 68 for a stud.  Each stud is first carried past two nozzles 198 which are supplied with droplets of cement by pistons 199 actuated by a solenoid 205 energized by a switch 218. The stud picks off a droplet from the first nozzle and is then rotated 180 degrees before it picks off a droplet from the second nozzle.
Patent GB-1404621-A (GB)
Title: Fire retardant compositions
IPC: C08K3/32
Filed: 1973-01-16
Abstract: 1404621 Fire retardant compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 18 May 1973 [8 June 1972 16 Jan 1973] 26806/72 and 2190/73 Headings C3B and C3P [Also in Division B5] A composite material comprising a cured thermosetting resin, a reinforcing material, and at least one low softening point inorganic oxide glass having a transformation temperature not greater than 300 C. may be prepared by (a) dispersing glass particles in a liquid precursor of the resin, impregnating the reinforcing material with the dispersion and curing the resin or (b) adding glass particles to the reinforcing material, impregnating the combination of glass and reinforcing material with a liquid precursor of the resin and curing the resin. In the examples compositions comprising unsaturated polyesters prepared from maleic anhydride, phthalic anhydride, propylene glycol, fumaric acid, isophthalic acid, and allorendic acid, phosphate glass, hydrophobic silica, styrene, chopped strand glass mat with PVA/silane finish, triethylene glycol/hydroquinone, oxypropylated bisphenol A, stearate-coated calcium carbonate, polymeric diisocyanatodiphenylmethane, antimony oxide, chlorinated fire retardant additive, methyl methacrylate, as blowing agents, dicyandiamide, melamine, guanidium carbonate, uracil acid phophoramide, E-glass roving and mat, magnesium stearate, silicone/silane, methacryloxypropyl trimethoxysilane, lead-free glass, low softening glass fibre rovings and an epoxy resin are cured using methyl ethyl ketone peroxide, cobalt naphthenate in white spirit, tert butyl per octoate and cyclohexanone peroxide in tricresyl phosphate.
Patent GB-233026-A (GB)
Title: Improvements in or relating to moulded articles and methods of manufacturing the same
Filed: 1924-01-28
Abstract: 233,026. Jensen, N. C. F. Jan. 28, 1924. Processes ; moulds. - Disintegrated waste material in the form of sawdust, waste paper, paper pulp or asbestos waste is packed into a mould with little or no binding agent, pressure is then applied almost to the maximum, heat is then applied to the mould and the pressure increased mechanically to the maximum and after a short time the mould is cooled while the pressure is maintained. The maximum pressure may be from half to one ton per square inch, the pressure applied before heating being about 75 per cent of the maximum and heating being from 220‹ F. to 240‹ F. Shellac may be added in the proportion of 1 per cent, or, where the material contains no binder, 2¢ per cent; and iron oxide may be added for colouring purposes. Heating and cooling may be effected by circulating steam and cold water through jackets in the mould and core. The manufacture of a tube is described wherein a stepped core is employed having a thin portion adapted to remain within the mould during packing and thicker portions adapted to be forced into the mould to effect the preliminary and final pressures.
Patent GB-1522123-A (GB)
Title: Apparatus for making cigarette filters
IPC: A24D3/02
Filed: 1977-01-20
Abstract: 1522123 Cigarette filters PHILIP MORRIS JNC 20 Jan 1977 [29 Jan 1976] 02358/77 Heading A2C Apparatus for feeding particulate material into spaces between filter plugs includes an elongate passage 40 through which the plugs 56 pass the passage communicating with a succession of conduits 68, 76, 78a-d. The first conduit 68 is connected to a source of vacuum and evacuates the spaces between the plugs and thereby encourages particulate material to pass from a hopper 12 through the second conduit 76 and into the spaces between the plugs. To preclude direct resistance free communication between conduits 68 and 76 they must be spaced apart by at least the distance between successive plugs. The final group of conduits is pressurized at a pressure between that of the first conduit 68 and the hopper 12 to remove material which may be disposed on the plugs. The material in the hopper is fluidized by pressurized air passing through the orifices in a fluidized tube 28.
Patent GB-1089434-A (GB)
Title: Improvements in or relating to solid electrolyte capacitors
Inventor: BICKLEY WILLIAM PETER
IPC: H01G9/042
Filed: 1964-01-20
Abstract: 1,089,434. Capacitors. PLESSEY-UK Ltd. Jan. 20, 1965 [Jan. 20, 1964], No. 2369/64. Heading H1M. A solid electrolytic capacitor comprises an anode of film forming metal, e.g. aluminium, tantalum, niobium, titanium, zirconium, electrolytically formed with a dielectric oxide layer and covered by a semi-conductive layer of manganese dioxide by immersion in manganese nitrate solution and subsequent pyrolysis; the anode being a flat or spirally coiled sheet, perforated, e.g., by slitting and expanding. An aluminium wire is welded to the sheet and the assembly is dip coated with a silver cathode to which a further wire is attached. Plural flat anodes may be stacked. The Provisional Specification refers to an anode of the non- metal silicon.
Patent GB-616980-A (GB)
Title: An improved revolution counter with setting-to-zero mechanism
IPC: G06M1/30
Filed: 1946-01-24
Abstract: 616,980. Counting-apparatus. LANDIS & GYR SOC. ANON. Jan. 24, 1946, No. 2396. Convention date, Jan. 25, 1945. [Class 106 (i)] In a revolution counter having, in the transmission between the drive to the counting mechanism and the lowest denominational figure drum or element, a coupling which can be engaged and disengaged with its component parts in any relative angular position and without disconnecting the gears of the transmission, the coupling is operatively connected by a lever or levers with a shaft carrying zeropositioning cams and, when the coupling is disengaged, the figure drums or elements are free to rotate, being restricted only by normal frictional forces. The units drum 4 is driven by a shaft 10 through gearing which includes a gear-wheel 16, Fig. 1, freely mounted on a shaft 11 and forming one member of a friction cone clutch, the other member of which is fixed on the shaft 11. The gear-wheel 16 may be slid axially without disengaging its pinion by a spring-loaded lever 24 which engages a circumferential slot in the gear-wheel 16 by means of pins 22 and is pivoted at one end, its other end carrying a pin 25 which bears on a cam surface 27 secured to the zeroizing shaft 8. Thus, on rocking of the zeroizing shaft, which may be effected by depressing a lever 6 against a spring, the drive to the units drum is interrupted and fingers 7 on the shaft 8 co-operate with heart-shaped cams 12, connected to the drums, to zeroize them. A plate clutch may replace the cone clutch. In a modification, Figs. 3 and 4, the gearing includes a differential gear, the planet-wheel shaft 29 of which is normally held stationary by two pivoted levers 39 which bear, under the action of a spring, on a disc 38. A block 43 carried' by the zeroizing shaft 8 forces the levers 39 apart and so releases the planet-wheels when the shaft 8 is rocked.
Patent GB-832538-A (GB)
Title: Improvements in or relating to sliding doors
Inventor: RABJOHN GILBERT HENRY
IPC: E06B3/46
Filed: 1957-01-23
Abstract: 832,538. Doors. HEAL & SON Ltd. Jan 23, 1957 No 2445/57 Class 20(3) [Also in Group XIV] A pair of sliding doors 4, mainly for articles of furniture such as a cabinet 2, 3, which are flush when closed and deflected away from ore another when opened to allow one to slide behind the other, have grooves 5 in their top and bottom edges for sliding along the upturned flanges 6a of U-section guides 6 which are pivoted at 7 towards their outer ends, to the underface of the top and the top face of the base of the cabinet respectively. A door is opened by pulling on the respective handle 8 so that the inner and outer edges of the door swing inwardly and outwardly respectively, a complementary movement in the opposite direction being imparted to the other door so that the door being opened can slide on the free flange 6a behind the unopened door. The meeting ends of the lower guides 6 are ganged by means of depending pins 9 which extend through slots 10 formed in the roof of an inverted channel section casing 11 let into a recess in the floor of the cabinet and engage in slots 12 at the ends of a link 13 pivoted centrally on a pin 14. The guides 6 are urged toward their aligned positions by means of torsion springs 15 each of which, with its eye engaged around the pin 14, has one leg engaged by a corresponding pin 9 which, when the associated door is pivoted, urges it away from the other leg which is held against following movement by a pin 16 depending from the roof of the casing. A stop 17, fixed to the underface of the top of the cabinet at each end, limits the sliding movement of a door in an opening direction and has a projection 18 which engages in a recess 19 in the rear face of the unopened door to limit its pivoting, and prevent its sliding movement. The guides at both the top and bottom, or only those at the top, of the cabinet may be interconnected.
Patent GB-1088890-A (GB)
Title: Process for producing 5'-inosinic acid
Filed: 1966-01-19
Abstract: 51-Inosinic acid is produced by culturing in an aqueous nutrient medium under aerobic conditions at 20 DEG  C. to 40 DEG C. and a pH of 4 to 9, a 51-inosinic acid-producing mutant strain of Brevibacterium ammoniagenes or Micrococcus glutamicus requiring biotin, capable of growing in a minimum culture medium, and exhibiting substantially accelerated growth in the presence of an amino acid, adenine or guanine.  The minimum culture medium contains glucose KH2PO4, K2HPO4, MgSO4.7H2O, FeSO4.7H2O, CaCl2.2H2O, MnCl2.4H2O, calcium pantothenate, biotin and urea.