baber/WOPTO huggingface dataset:
Patent GB-367168-A (GB)
Title: Improvements in carburettors
IPC: F02M23/09
Filed: 1931-02-12
Abstract: 367,168. Spray carburetters. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Feb. 12, 1931, No. 4386. Convention date, Feb. 22, 1930. Addition to 287,902, [Class 7 (iii), Internalcombustion engines, Carburetting-apparatus &c. for]. [Class 7 (iii).] The parent Specification describes a carburetter in which the float chamber air-space is connected to a main choke tube, an auxiliary air passage in parallel with said choke tube being controlled by an automatic throttle valve. According to the invention, the auxiliary throttle also controls the pressure in the float chamber. The float chamber air-space g is connected by a tube f to an intermediate choke tube d, and by a tube n to the auxiliary air passage i, the end o of the tube being adapted to be varied in area by a slot q in a disc p integral with the throttle k. The inlet of air to the tube and therefore the pressure in the float chamber are adapted to be increased as the throttle is opened. The nozzle h discharges into a small choke tube e which, together with the intermediate tube d, is in series with the main choke tube c. An air throttle is provided at b. In a modification, a tube opening into the auxiliary passage i delivers air to the spraying tube h. In a further modification, the inlet to this tube is also adapted to be controlled by a recess in a disc on the auxiliary throttle. As this throttle is opened, the inlet to this tube is closed, and that to the tube n opened.
Patent GB-1033501-A (GB)
Title: Automatic programming of the utilisation of a variable electrical response
IPC: G05B19/08
Filed: 1963-02-04
Abstract: 1,033,501. Electric selective signalling. SOC. NATIONALE DES PETROLES D'AQUITAINE. Feb. 4, 1963 [Feb. 5, 1962; Jan. 25, 1963], No. 4386/63. Heading G4H. A pulse count is used to control the processing of a peaked electrical signal, including the storing of the peaks and the resetting of the base line of the signal to a reference level. The resetting is as described in Specification 971,991, which is referred to. A diode matrix recodes the 1-out-of-n output of a counter to produce processing control signals, which also control sensitivities and may prevent input to the counter for a fixed period. Input to the counte (also prevented during base-line correction) may be pulses marking the ends (or beginnings) of peaks, or signals from a clock. The peaked signal may be from gas chromatography apparatus.
Patent GB-539494-A (GB)
Title: Improvements in or relating to colour photography
IPC: G03C7/34
Filed: 1940-03-11
Abstract: 539,494. Mono-alicyclic ethers of polyhydric: phenols. DU PONT FILM MANUFACTURING CORPORATION. March 11, 1940, No. 4567. Convention date, March 13, 1939. [Class 2 (iii)] [Also in Group XX] Photographic colour formers consist of mono-alicyclic-ethers of a polyhydroxy aromatic compound .having a reactive position ortho or para to a nuclear-substituted hydroxyl group. The ether may be formed from a dihydric phenol. The alicyclic radical may be cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, bromocyclohexyl, naphthenyl, chloronaphthenyl, menthyl, abietyl, dihydroabietyl, or tetrahydroabietyl, and the phenol radical may be hydroxyphenyl, 2-chloro-3-hydroxyphenyl, 3-bromo-2-hydroxyphenyl, 4-methyl- 3-hydroxyphenyl, 2-ethyl-3-hydroxyphenyl, hydroxynaphthyl (preferably 1-hydroxy-naphthyl), 2-bromo-1-hydroxynaphthyl, or 2- chloro-1-hydroxynaphthyl, and either radical may be substituted by halogen, hydroxy, alkoxy, or alkyl groups. The alicyclic radical may be substituted by nitro or amino groups.. Colour formers specified are the mononaphthenyl, monocyclohexyl, monoabietyl, monodihydroabietyl and monotetrahydroabietyl ethers of resorcinol and pyrocatechol and the monomethylcyclohexyl ether of resorcinol. The: alicyclic radical may also be derived from cyclopropyl carbinol, cyclobutyl carbinol, fenchyl or iso-fenchyl alcohol, borneol or cholesterol. Naphthenyl bromide is prepared by passing dry hydrogen bromide into naphthenyl alcohol for two hours at 130‹ C. Resorcinol mononaphthenyl ether is prepared by reacting naphthenyl bromide with resorcinol in the presence of potassium hydroxide and n-butyl alcohol. Resorcinol monocyclohexyl ether and pyrocatechol mononaphthenyl ether are similarly prepared. Ethers may also be prepared from naphthenic acids containing from 6 to 18 or more carbon atoms by catalytic reduction to alcohols, conversion to bromides, and reaction to form the ethers. Bromides may also be formed from cyclopropyl carbinol, cyclobutanol, cyclobutylcarbinol, cyclopentanol, fenchyl and iso-fenchyl alcohol, borneol, and cholesterol. Specification 133,034, [Class 98 (ii)], is referred to.
Patent GB-414439-A (GB)
Title: Improvements in fasteners for stair carpets and the like
IPC: A47G27/06
Filed: 1933-02-15
Abstract: 414,439. Stair-carpet fasteners. KERSHAW (MACHINE - MADE BRASSFOUNDERS), Ltd., and RUSSELL, H. R., Highgate Street, Birmingham. Feb. 15, 1933, No. 4597. [Class 52 (v).] A stair-carpet fastener of the pivoted arm type has a plate, strip, or wire spring 20 projecting longitudinally of and behind the carpet engaging portion of the arm 14 when in carpet-engaging position for engagement with a projection or cam-like portion 21 to retain the arm in the operative position. The attachment plate 10 has a longitudinal slot 19 in which lies the leaf spring 20 riveted at one end to the plate. At its upper and lower edges the plate 10 is bent to form lugs 11 with holes 12 in which take projections 18 on the arm 14 to form a hinge. Beyond the hinge the arm 14 is bent to form the projection 21 upon the end of which the spring 20 bears to retain the arm in the carpet-engaging position shown. To retain the arm in the inoperative position at right angles to the stair or riser, the spring engages the side of the projection 21. Fig. 6 shows a modification in which the plate 10 is provided with a pair of hinge lugs engaging a pin 23 and the arm 14 has a single hinge lug 25 embracing the pin 23 and cut away at 26 to form two inclined surfaces 29, 30 with which the spring 27 engages in the operative position of the arm. In the inoperative position the curved end 28 of the spring engages the outer surface of the hinge lug 25. Two or more springs may be used, or a coiled torsion spring may be provided around the pin 23. The edges 15 of the arm may be serrated to grip the carpet.
Patent GB-1261242-A (GB)
Title: Improvements in or relating to sun glasses or goggles
Inventor: SCHINDLER PAUL RENE
IPC: G02B5/22
Filed: 1969-01-28
Abstract: 1,261,242. Plastics laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 19 Jan., 1970 [28 Jan., 1969], No. 4598/69. Heading B5N. [Also in Division G2] Laminates for use in making sunglasses and goggles (see Division G2) comprise a layer of copper-metallized oriented polyethylene terephthalate film, which may be heat-shrinkable, protected by a second polyethylene terephthalate film.
Patent GB-621326-A (GB)
Title: Improvements in rotors for electric fans
IPC: F04D29/34
Filed: 1947-02-18
Abstract: 621,326. Screw fans. GREENWOOD'S & AIRVAC VENTILATING CO., Ltd., and HUGHES, B. D. Feb. 18, 1947, No. 4677. [Class 110(i)] The rotor of a fan is formed of two circular discs 1, 2 and a number of approximately rectangular blades 4 pressed to the required curvature and riveted at the inner corners to the respective discs, the blades being formed with a fixing lug 5 at one of these corners at least; the other inner corner of the blade fits against the disc 2 and and a lug there is not necessary. The discs 1, 2 are connected and spaced by a boss 3; bosses of different lengths may be used to cause blades of a standard size to stand at the required pitch for a given output.
Patent GB-1377721-A (GB)
Title: Internal combustion engines
Inventor: ORTELLI A
IPC: F16K1/20
Filed: 1973-01-30
Abstract: 1377721 Valves RIVA CALZONI SpA 30 Jan 1973 [28 Feb 1972] 4682/73 Heading F2V A shutter plate 13 engages an annular seat 7 to seal the exhaust passage of an I.C. engine and has an arm 30 engaged by a fixed pin 32 to rotate it through 180 degrees with respect to a pair of pivoted arms 23 when the latter are turned through 90 degrees to the position shown in broken lines. With the'valve in the latter position, a sealing ring 15 is enclosed by a recess 35 and washed by water circulated through inlet and outlet conduits 37, 38 while in the closed position the ring and seat are cooled by water sprayed through nozzles 10 from an annular conduit 9. A shaft 23 connects the arms 23 to a collar 19 keyed to a ball joint 18 and a pair of arms 22 nesting against the shutter plate.
Patent GB-799479-A (GB)
Title: Process for photographically producing a master record member and printing therefrom
IPC: G03F7/00
Filed: 1957-02-12
Abstract: 799,479. Photographic reproduction processes. NATIONAL CASH REGISTER CO. Feb. 12, 1957 [March 22, 1956], No. 4724/57. Class 98(2) In a process for direct production by light exposure of a master record member capable of yielding up to ten copies on receiving sheets, a base member having a photosensitive coating consisting of microscopic pressure - rupturable capsules, each consisting of hydrophilic colloid material formed by coacervation around droplets of a volatile liquid containing a colouring material is exposed as through a negative to reader hydrophobic the capsules subjected to the light, and treated as by moistening to swell the capsules not subjected to the light and heating to release the volatile liquid from such swollen capsules; whereafter the coated surface may be pressed on to one or more of the receiving sheets to rupture the capsules which have been subjected to light and transfer the volatile liquid and colouring material thereto. The photosensitive material may be made by emulsifying diethyl benzene containing dye into aqueous gum arabic solution, adding gelatin solution and then water at 50‹C. with agitation until concervation occurs, pouring into cold water to gel the colloid material, hardening by addition of formaldehyde, sensitizing with dichromate, and then coating by normal methods on the base member which may be paper and drying. Sensitization may be effected after coating by dipping into dichromate solution. For greater light sensitivity a condensation product of diazo-diphenylamine and paraformaldehyde may be used. Exposure under the negative may be one foot away from a 15-ampere white flame carbon arc for up to a minute for dichromate and one-tenth second for diazo sensitization, and processing may be by passage across a water dampened roller and then over a drum heated to 110-130‹C. for 15-30 seconds. Transfer of colouring material to the receiving sheet as referred to above may then be effected by passage through a calender press. Chrysoidine and eight other oil-soluble type dyes for the purpose are quoted; or colour in the receiving sheet may result from reaction between material present in the capsules and in such sheet, and for this method crystal violet and malachite green lactones are quoted for use in the capsules to give blue and blue-green colours respectively with attaplgite clay provided in the receiving sheet. A petroleum fraction or dimethyl benzene may be used a volatile liquid.
Patent GB-851257-A (GB)
Title: Improvements in expanding bracelets
IPC: A44C5/08
Filed: 1959-02-12
Abstract: 851,257. Bracelets. CAZZOLA, U., and CAZZOLA, O., [trading as CAZZOLA UMBERTO & FIGLIO]. Feb. 12, 1959 [Feb. 22, 1958], No. 4887/59. Class 43 An expanding bracelet comprises a plurality of open ended .parallelepiped inner members b interposed between and engaging a pair of laterally open parallelepiped outer members a, the members a and b being interconnected by curved plate springs c each engaging lateral tongues d on the outer member and the central part of a transverse wall of the inner member.
Patent GB-1172774-A (GB)
Title: Improvements in or relating to Drive Spindles.
Inventor: LEA NORMAN WILLIAM
IPC: F16D3/50
Filed: 1967-07-25
Abstract: 1,172,774. Portable electric drills. ARCOY PRODUCTS Ltd. 25 July, 1968 [25 July, 1967; 31 Jan., 1968], Nos. 33997/67 and 4918/68. Heading B3C. [Also in Division F2] A drive spindle between a gear (4) and chuck (2) of an electric drill comprises two spindle sections 7, 13 coaxially connected for torque transmission by an electric insulating block 3 which extends along one spindle section 7 to form an insulated bearing surface 19. A disc 8 on the end of the spindle section 7 has axial projections 9 which engage with play between radial projections 14 on the spindle section 13. The block 3 is moulded round the spindle ends to insulate the spindle sections from each other. The block 3 may be nylon as polyester resin. When a bearing surrounds the surface 19 a flange (23) may be spin-welded to the end 21 of the extension of the block 3.
Patent GB-106111-A (GB)
Title: Improvements in and relating to Electric Make and Break Devices.
IPC: H01H51/08
Filed: 1916-04-06
Abstract: 106,111. Marks, E. C. R., (American Model & Instrument Co.). April 6, 1916. Make-and-break switches, mechanical; sparking, preventing.-In a rotary make- &nd-break device comprising a number of mechanical interrupters 18, 23, arranged to operate in a predetermined sequence, as required in flash advertising, for example, the circuits are prepared at the individual switches but the current is made and broken at the appropriate moment, at.a single pair of main interrupting-contacts 33, 34. The interrupter arms 23, which are arranged in line, are engaged by toothed metal disks 17 mounted one behind the other upon and in electrical connexion with a clockworkdriven shaft 14 which carries, also in electrical connexion therewith, a single toothed metal disk 19 which operates the master switch arm 29 pivoted at 28. The arms 23, 29 are limited in their downwards movement by the set-screws 25, 31. In action, a tooth 18 first engages and makes contact with the arm 23, then a tooth 20 of the master-disk lifts the arm 29 thereby closing the contacts 33, 34 and completing the circuit from the battery 46 through one of the branch wires 47<a> to a relay. The arm 29 subsequently rides off the teeth 20 breaking the circuit at the master switch contacts 33, 34 and the tooth 18 passes away from engagement with the arm 23 while no current is flowing.
Patent GB-791176-A (GB)
Title: Alternating current arc-welding process
IPC: B23K35/38
Filed: 1956-02-20
Abstract: 791,176. Welding by fusion. UNION CARBIDE CORPORATION. Feb. 20, 1956 [March 15, 1955], No. 5236/56. Addition to 709,533. Drawings to Specification. Class 83 (4). In alternating current arc welding with a fusible metal electrode and a shielding gas consisting of a mixture of 0.1-50 per cent oxygen and argon or helium, a high-frequency potential is superimposed on the welding current and the latter is of such intensity as to transfer metal across the arc in the form of a spray. The high frequency is 2-6 megacycles and welding current frequencies of 60 and 240 cycles are referred to. When welding mild steel plate with a steel electrode containing up to 2 per cent total of carbon, manganese and silicon, the minimum welding current to produce spray type transfer is 65,500 amperes per square inch of electrode, whereas when welding stainless steel consisting of up to 0.08 per cent carbon, up to 2 per cent manganese, up to 1 per cent silicon, 17-19 per cent chromium, 9-12 per cent nickel and at least ten times as much cobalt as carbon with an electrode containing up to 0.08 per cent carbon, up to 2 per cent manganese, up to 1 per cent silicon, 18-20 per cent chromium and 8-11 per cent nickel the minimum current density is 68,300 amperes per square inch. In both cases the shielding gas is 95 per cent argon, 5 per cent oxygen. For welding refractory metals such as titanium using a titanium electrode, a very small amount of oxygen is used, but when welding speed is more important than quality, e.g. when welding rimmed steel with a rimmed steel electrode, 20-50 per cent oxygen is used.
Patent GB-876012-A (GB)
Title: Method and apparatus for glass melting
Inventor: LABINO DOMINICK
IPC: C03B37/083
Filed: 1960-02-16
Abstract: 876,012. Crucible furnaces. JOHNS-MANVILLE CORPORATION. Feb. 16, 1960, No. 5385/60. Class 51 (2). A crucible furnace for melting glass comprises a steel shell 24 lined with refractory 25 and formed with a bottom opening 27 slightly smaller than the base 11 of a crucible 12, a burner 33 opening into a combustion chamber 34, and a hopper 36 feeding glass marbles 38 into the crucible neck 14 through a conduit 40 and T-shaped tube 41. The base 11 is formed with orifices 16 through which glass exudes to be attenuated into fibres 44. The crucible neck 14 extends through the furnace top 32 leaving a narrow annular flue space 31, and forms a preheating section for the marbles 38. The crucible 12 tapers slightly outwardly and upwardly for about ¢ its height, and then tapers inwardly at about 45 degrees for about <SP>1</SP>/ 10  of its height towards the neck 14 extending over about the upper <SP>2</SP>/ 5  of its height. The orifices 16 may have tubular linings, Fig. 3 (not shown).
Patent GB-538779-A (GB)
Title: Internal combustion engines, especially for aircrafts
IPC: F02B25/00
Filed: 1940-03-28
Abstract: 538,779. Two and four - stroke engine; valves. SUMII, T. March 28, 1940, No. 5579. Convention date, Sept. 28, 1939. [Classes 7 (ii) and 7 (vi)] In an engine in which the cylinders are without clearance and the compression ratio is zero a charge of air or combustible mixture is delivered under pressure during the initial stage of each working stroke so that the engine operates with delayed ignition. In a fourstroke cycle the exhaust and working strokes are followed by two strokes during which the cylinders are cooled by inducing and expelling an air charge. A four - stroke cycle radial cylinder engine is described in which each cylinder is associated with a charging pump the pump pistons are connected to the engine crankshaft and thus make two delivery strokes into a common manifold for each working stroke in the corresponding engine cylinder. A compressed charge enters a working cylinder only during its expansion stroke the charge being cut off early in the stroke. The burnt gases are delivered through a valve 6, Fig. 8, beyond which is an automatic non-return ported disc valve 11. Air is drawn into the cylinder 1 through the exhaust valve 6 and the valve 12 on the third stroke of the cycle and is discharged on the following stroke through the valves 6 and 11. On the valve 11 is an annular extension 20 which draws in and discharges cooling air or liquid from the chambers 25, 29. When using liquid fuel by direct injection the pumps compress air. The Specification as open to inspection under Sect. 91 states that the engine may work on a two - stroke cycle. This subject-matter does not appear in the Specification as accepted.
Patent GB-1525342-A (GB)
Title: Motor-pump device and a method of lifting a liquid
IPC: F04D3/00
Filed: 1977-02-14
Abstract: 1525342 Centrifugal pumps; turbines AN WALTON-BOTT 14 Feb 1977 [12 Feb 1976 18 Feb 1976] 05597/76 and 06388/76 Headings F1C and F1T In a pumping device, a rotor comprises a turbine the blades E of which are fast with impeller blades F of a centrifugal pump, part of the working liquid e.g. seawater, which is fed under pressure, driving the turbine and subsequently discharging via a pipe H, and the remaining liquid being pumped by impeller blades F to a higher level. The turbine and pump are connected by a cylindrical wall C which is connected to the pump housing via a labyrinth seal O. Stator vanes may be located in the inlet of the turbine and/or the pump, and some of those in the pump inlet may be adjustable. The drive, which is via a shaft J, may be regulated by speed regulation equipment K, and oil is supplied to the rotor bearings B1, B2 via an oil duct G.
Patent GB-273364-A (GB)
Title: Improvements in filtering apparatus
IPC: B01D25/00
Filed: 1926-03-01
Abstract: 273,364. Garland, C. S., Beacham, T. E., and Pickard, J. A. March 1, 1926. Recovering waste lubricants.-In a filter 1, Fig. 1, arranged in the lubricating system of an internal-combustion engine and so mounted relative to the engine that it is maintained at a desired temperature, vapours or light fractions eliminated from the oil by the heat during its passage through the filter pass through a breather opening 28 communicating with the discharge chamber of the filter. As shown in Fig. 9, the upper part of the oil return pipe 35 is enlarged and communicates by a pipe 36 with the engine induction pipe 37 or with the air intake of the carburettor 39. Air is thus sucked in through a cock 38 and passes over the hot oil in the head of the filter, carrying off any vapours or light fractions.
Patent GB-287082-A (GB)
Title: Improvements in airships
IPC: B64B1/58
Filed: 1928-02-23
Abstract: 287,082. Bronn, J. I., and Concordia. Bergbau Akt.-Ses. March 14, 1927, [Convention date]. Aerostats.-In an airship in which gaseous and liquid fuels are used in such proportions that the buoyancy remains substantially constant, the gaseous fuel consists of a mixture of hydrocarbons obtained by deeply cooling the distillation gases of coal, and may comprise methane and higher boiling point hydrocarbons having a weight of the order of 850 grammes per cubic metre, and free from components liquefiable at cold atmospheric temperatures. The gas, alone or mixed with air, may be passed through or over liquid fuel maintained at a constant temperature, or the temperature may be adjusted to vary the proportion of liquid fuel taken up. Alternatively, some of the engines may use liquid fuel and others gaseous fuel.
Patent GB-1084781-A (GB)
Title: Improvements in or relating to agricultural implements
Inventor: PEROLD LOUIS
IPC: A01D75/24
Filed: 1964-02-12
Abstract: In a rake-wheel type of haymaking machine the rake-wheels are rimless and have tines of non-circular cross-section which are stiff in the general plane of rotation of the wheel but which deform resiliently in a direction perpendicular to that plane. Preferably the tines are of rectangular cross-section but they may also be of elliptical section with the minor axis perpendicular to the plane of rotation. The central part 33 of each rake-wheel 3 is domed and includes a hub 30 housing bearings 31 for the stub-axle 13.  The tines 36 are bolted to the rim 34 of the central part, in groups of three, by clamps 35. The main part of each tine is bent rearwardly of the direction of travel of the machine, the tip being bent in the opposite direction. The haymaking machine is attached to the power-lift system of a tractor by an A-frame 17 which includes a pivoted telescopic strut 26 enabling the beam carrying the rake-wheels to be adjustably angled to the line of draught.
Patent GB-911028-A (GB)
Title: Improvements in or relating to nozzle assemblies for injection moulding machines
IPC: B29C45/23
Filed: 1961-02-17
Abstract: 911,028. Injection-moulding machines. AOKI, K. Feb. 17, 1961 [Feb. 19, 1960], No. 6030/61. Class 87(2). A nozzle assembly 2 screwed to an injection cylinder 1 contains a passage 4 communicating with an orifice 5, and a needle valve 6 disposed in the passage 4, the valve being adjustable relative to the orifice to control the initial injection pressure. A spring 8 abuts against a disc 9 fitted to the spindle 7 of the needle valve 6, which is thus moved to close the orifice 5. The tension in the spring 8 may be adjusted by rotation of a handwheel 12 fixed to a screw member 10 which is fitted in a screw-threaded aperture 211 of the nozzle assembly and abuts against the free end of the spring 8. As plasticized material is fed along the passage 4 the pressure in the nozzle builds up until it is sufficient to overcome the tension in the spring 8, when the needle valve 6 is moved to the right in Fig. 1 to open the orifice 5. The assembly is heated by an element 15 and material which leaks past the spindle 7 escapes through an opening 14. In alternative embodiments the axis X may be at right angles to the axis Y-Y or the passage 4 may be elbow-shaped so that the axes X and Y-Y are parallel and offset.