baber/WOPTO huggingface dataset:
Patent GB-1511603-A (GB)
Title: Shut-off valve for injection moulding machine
IPC: B29C45/30
Filed: 1976-03-18
Abstract: 1511603 Valve for injection mould INCOE CORP 18 March 1976 [1 Dec 1975] 10996/76 Heading B5A A valve 44 which controls the passage of injection moulding material, e.g. foamable polycarbonate into a mould, e.g. 34 or 35 and which can be closed independently of the pressure of the moulding material. The valve 44 comprises a pin 72 which can be moved to close a mould inlet 52 when a rod 71 provided with a frustoconical cam surface 85 is driven downwardly a hydraulic or pneumatic double acting cylinder 86. The pin 72 slides within a hollow shank 60, 57 which, with an outer housing 46, defines a material chamber 62. The latter is connected to a manifold 26 via passages 74 (73, see also Fig. 6, not shown) in the shank end portion 57. The pin 72 and shank are heated by an electric coil 78 provided therebetween. The rod 71 is withdrawn upwardly by the cylinder 86 when a limit switch ILS is operated by the closure of the mould halves 36, 37. The pin 72 may then be opened by the pressure of the moulding material acting on the frusto-conical pin surface 83. The circuit controlling the cylinder 86 may also comprise a solenoid 94 controlled by a timer 95, a four way valve 89 controlled by the solenoid 94 and a timing relay switch (99, Fig. 7). The solenoid 94 may be energized immediately the switch ILS closes or, by using an additional timer, after a predetermined period to allow for a build-up in moulding pressure. A plurality of valves driven by the same or individual cylinders may be provided to control feed into one or more mould cavities. The apparatus may be provided with an accumulator for storing plasticized foamable material under pressure.
Patent GB-110173-A (GB)
Title: Improvements in Internal Combustion Engines.
Inventor: LIRONI VITTORIO GIOVANNI
IPC: F02B17/00
Filed: 1916-08-04
Abstract: 110,173. Lironi, V. G. Aug. 4, 1916. Four-stroke-cycle engines; cylinders, arrangement of ports in.-In engines in which the working charges comprise a light and a heavy fuel admitted separately, air carburetted with heavy fuel is drawn in through a valve d during the first portion of the suction stroke and is followed by air mixed with a light fuel which is drawn in through a valve e. The proportion of heavy to light fuel is approximately three or four to one. Paraffin, alcohol, &c. may comprise the heavy fuel and petrol, benzol, &c. the light fuel.
Patent GB-179914-A (GB)
Title: Improvements in wheels for motor vehicles
IPC: B60B3/18
Filed: 1922-04-19
Abstract: 179,914. Compagnie d'Applications MÚcaniques. May 7, 1921, [Convention date]. Drawings to Specification. Hubs.-Detachable wheel hubs are pressed, preferably out of sheet metal of uniform thickness, in one piece with the, brake drum, which may be provided with a removable or other liner.
Patent GB-352420-A (GB)
Title: Improvements in connection with machines for developing photographic prints
IPC: G03D5/06
Filed: 1930-04-07
Abstract: 352,420. Photographic developing processes. HALL, B. F. and HALL & CO., Ltd., B. J., Chalfont House, Gt. Peter Street, London. April 7, 1930, No. 11049. [Class 98 (ii).] A machine for developing photographic prints comprises a roller A mounted to revolve in a bath of developer B, a roller or other pressure device D in contact with the roller and a guide E which may be continuous or consist merely of parts at the point of entry of the prints and the pressure member. A stripping device consisting of fingers a<1> is also provided. The pressure roller D may be wound with a helix of wire so as to press on the developer roller at a few points only, or may be replaced by pressure fingers.
Patent GB-458896-A (GB)
Title: Improvements in high pressure metal vapour electric discharge devices
IPC: H01J61/32
Filed: 1936-04-17
Abstract: 458,896. Metallic-vapour apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, and GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, both in London.-(Assignees of Germer, E.; 42, Ulricistrasse, Wannsee, Berlin) April 17, 1936, No. 11078. Convention date, July 3, 1935. [Class 39 (i)] In a high-pressure metal-vapour discharge device the envelope 1 is tubular and curved so that when the device is operated with the ends of the envelope, containing the electrodes 2, 3, in approximately a horizontal plane and with the middle of the envelope above that plane, the constricted discharge column 4 runs substantially along the axis of the tube. The bowing out of the arc by convection may thus be permitted without damage to the envelope. The envelope 1 may be bent in a circular arc, and is surrounded by an outer jacket 5 which may be curved to conform with the shape of the tube, as shown, or of straight or other shape. The fitting receiving the device has its contacts so related to those of the device that the latter can only be inserted in the correct position. Specification 11140/11, [Class 39 (i)], is referred to.
Patent GB-294001-A (GB)
Title: Improvements in or relating to apparatus for the heat treatment of cereal substances
IPC: A23B9/08
Filed: 1927-04-26
Abstract: 294,001. Chitty, C. W., Jones, D. W. Kent-, and Woodlands, Ltd. April 26, 1927. Treatment by heating.-In an apparatus for heat-treating cereal substances such as flour or grain, of the type in which heating tubes 15 to receive the cereal extend between upper and lower tube plates 13, 14, and are in a tank 11 containing a heating fluid such as water, the upper plate, which is surrounded by upstanding sides 17 to form an open filling tray, is combined with heating tubes the upper ends of which terminate flush with or below the surface of the flap. The tubes may be tapered to increase in cross-section from top to bottom. The upper ends of the tubes 27 may be autogenously welded to downwardly-turned flanges in the holes in the upper tube plate. At their lower ends the tubes pass through the tube plate, which is downwardly flanged round the openings, and the projecting flanges are autogenously welded to the tubes on the outside. The upper end of each tube is provided with a removable lid 19 covered by or made of non-corrodible material. The tubes may be constructed of or lined with aluminium, the alloy known under the registered Trade Mark of Monel metal, or other non-corrodible material. The tank is supported on a wooden framework 21 resting on steel joists 22, the tubes being situated over the spaces between the joists. Sliding shutters made of wood cased in aluminium can be moved to open or close the lower ends of each row of tubes by handles 27. In operation the tray is loaded with flour which is swept into the heating tubes; when these are full the lids 19 are placed in position and water at a temperature of about 185‹ Fahr. is passed round the tubes for about 10-11 hours, the heated flour then being discharged by opening the shutters 24. The flour falls into a hopper 28 provided with a conveyer 29 for breaking up any lumps of flour. In a modification the upper ends of the tubes project through the tube plate but terminate below a false bottom provided with charging openings to fit the tubes. Specifications 29825/10, 1260/11, 228,830, 228,841 and 263,897 are referred to.
Patent GB-283558-A (GB)
Title: Method of treating material containing magnesium
IPC: C05B11/06
Filed: 1927-04-26
Abstract: 283,558. Liljenroth, F. G. Jan. 15, 1927, [Convention date]. No Patent granted (Sealing fee not paid). Manures.-The invention relates to an improved method of producing mixed fertilizers containing potash from potassiferous raw materials containing magnesium and chlorine while avoiding the latter substances in the final product. The invention consists, in first converting the potassiferous raw material to sulphates by treating it with sulphuric acid so as to remove its content of chlorine as hydrochloric acid, then dissolving the material and precipitating the magnesia from the solution of potassium and magnesium sulphates by means of carbon dioxide and ammonia and after removal of the precipitate of magnesium carbonate, finally utilizing the solution of potassium and ammonium sulphates produced as means for precipitating the lime contained in the solution obtained in leaching phosphatic rock with nitric acid. After the removal of the precipitate of calcium sulphate the solution produced is neutralized with ammonia and evaporated, and in this manner a mixed fertilizer containing nitrogen, potash and phosphoric acid, but practically free from magnesium and chlorine is obtained. When the quantity of sulphates exactly corresponds to the lime dissolved from the phosphatic rock, the fertilizer produced will also be practically free from sulphuric acid.
Patent GB-216303-A (GB)
Title: Improvements in shedding motions of looms for weaving
IPC: D03C1/14
Filed: 1923-04-25
Abstract: 216,303. Dawson, J. April 25, 1923. Top and under motions. - The cords e from the lower staves of the healds f are connected by members d<1> to hooks d on cast or wrought metal double-armed levers a, which are slotted or bent at c to engage fulcrum rods &c. b, and are hooked or bent at g. Slides or rollers h on forked links i hooked or otherwise attached to springs h connected to fixed parts m engage the levers a and slide towards their pivots so as to exert a decreasing force as the healds are raised.
Patent GB-1496714-A (GB)
Title: Collapsible caravan
IPC: B60P3/34
Filed: 1975-03-18
Abstract: 1496714 Collapsible caravans SOC PROMOTIONNELLE DES LOISIRS 18 March 1975 [18 March 1974] 11173/75 Heading B7B A collapsible caravan has rigid side walls pivoted to a wheeled base 1 and slidably connected to a rigid roof 13, opposite walls 3, 5 being interconnected by cable means so as to be movable together from an erected condition to a collapsed position in which they horizontally overlie the base 1 beneath the roof. Each opposite wall 3, 5 is connected at an upper side edge to one end of a cable (10, 11) (Figs. 3, 4, not shown) which extends about pulleys (12, 14, 15, 16) on the roof and is connected at its other end to the opposite upper side edge of the opposite wall. Slide guides 19 at each side of the roof engage projections 17, 21 or rollers on the side walls, and gas loaded jacks 25, 26 may be provided to facilitate erection of the walls.
Patent GB-591243-A (GB)
Title: Method of manufacture of refractory products having a base of pure silica
IPC: C04B35/14
Filed: 1945-05-03
Abstract: Silica-base refractories are bonded by means of calcium aluminate, which may be formed in situ during baking.  A concrete, which sets in water and is unaffected by sudden temperature changes, is made by a mixture containing 2/3 -\ba3/4 of crushed silica glass and 1/3 -\ba1/4 of calcium aluminate.  According to the Specification as open to inspection under Sect. 91, the calcium aluminate can be replaced by an aluminous cement. This subject-matter does not appear in the Specification as accepted.
Patent GB-373355-A (GB)
Title: Improvements in or relating to luminescent gaseous discharge tubes
IPC: H05B41/44
Filed: 1931-04-16
Abstract: 373,355. Discharge lamps. CLAUDE, G., 3, Avenue de l'Opera, Paris.-(Assignee of Beck, L. L. ; 27, Stoneleigh Park, Westfield, New Jersey, and Noble, A. E. ; 46, Nassau Boulevard, Lynbrook, Long Island, New York, both in U.S.A.) April 16, 1931, No. 11328. Convention date, April 17, 1930. Drawings to Specification. [Class 39 (i).] Colour blending is obtained by employing a plurality of luminescent gas discharge tubes containing neon, mercury vapour, &c., in each of which the current density is varied by means of a variable rotating shunt disposed between the cores of the primary and secondary windings of the transformer. The electrodes of the tubes are preferably provided with electron emitting substances, e.g. potassium or barium oxides. Different coloured glass envelopes are employed in the colour blending.
Patent GB-478623-A (GB)
Title: Improvements in and relating to the welding of non-austenitic iron and steel alloys and of iron and steel
IPC: B23K35/30
Filed: 1937-04-21
Abstract: Non-austenitic iron and steel and alloys thereof are welded by means of an austenitic welding wire consisting of iron with up to 0,35 per cent of carbon, 13-26 per cent of manganese, and 3-15 per cent of chromium, with or without up to 4 per cent of nickel, up to 8 per cent of cobalt, and up to 3 per cent of tungsten, molybdenum, copper, vanadium, titanium, tantalum, and zirconium. The chromium content is within 6 per cent of half the manganese content.
Patent GB-714243-A (GB)
Title: Improvements relating to multicolour photographic reproduction
Inventor: BALL JOSEPH ARTHUR
IPC: G03C7/26
Filed: 1950-05-08
Abstract: 714,243. Colour photography. BALL, I. O. May 8, 1950, No. 11423/50. Addition to 694,421. Drawings to Specification. Class 98(2) The four-colour photographic and photomechanical colour reproduction processes of the parent Specification are'extended to five-colour processes, thus five light sensitive photographic layers are exposed through light filters which produce predominant exposure in the ranges 425 to 445, 610 to 650, 472 to 492, 525 to 545 and 564 to 584 millimicrons respectively and which have transmission band widths not greater than 60 millimicrons at one-half the transmission, to produce five colour separation negatives; and these may be converted, as stated in the Specification by methods such as colour coupling development, colour toning or imbibition dye transfer, into five coloured positive images which have predominant absorption in the ranges 435 millimicrons and shorter, 600 millimicrons and longer, 460 to 485, 505 to 530 and 550 to 575 millimicrons respectively, and the positive images superimposed in register; or, alternatively, five printing plates may be made from the five colour separation negatives and imprintations made from the plates on sheet material in register using inks which have predominant absorptions of the same ranges as for the positive colour images. Filters for the negative exposures, colour formers for coupling development mordants and colours for toning, and inks for photomechanical procedure are quoted. Specifications 160,137, 193,069, [both in Class 98(ii)], 440,032, 440,089, 447,092, 627,353, 635,294, 661,477 and 694,421 are referred to.
Patent GB-386943-A (GB)
Title: Improvements in and relating to gear wheels
IPC: F16H55/06
Filed: 1931-04-17
Abstract: 386,943. Toothed wheels. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Ross, A. A. ; 28, Brookhouse Drive, Marblehead, Massachusetts, U.S.A.) April 17, 1931, No. 11450. Convention date, April 18, 1930. Void [Published under Sect. 91 of the Acts]. [Class 80 (i).] In split cr one-piece gear wheels for use in railway motors, &c. where the rim is required to be hardened after the teeth are cut, the rim 1 is bent from a strip of steel preferably of high or medium carbon content, the ends being united by butt or flash resistance welding. The web 2 and hub 3 are of low-carbon content steel, and are welded together and to the rim. The teeth are then cut and the rim is case hardened or hardened by heating and quenching.
Patent GB-114815-A (GB)
IPC: F04B1/22
Abstract: 114,815. Ludwigsbergs Werkstads Aktiebolag. March 24, 1917, [Convention date]. Addition to 107,596. Counterbalances; cam-actuated pumps; stroke, varying; revolving-cylinder pumps.-In a revolving-cylinder pump of the kind described in the parent Specification, the actuating disk 5 is guided by a ring 20, between the inner walls of which and the disk 5 cavities 23, 24, 25, 26 are arranged. Cavities 23, 26 communicate respectively with the pressure chambers 32, 38 by channels 27, 28, 29, 30, 31 and 33, 34, 35, 36, 37, so that the hydraulic pressure in these chambers neutralizes the thrust of the pistons on the ring 20. Cavities 24, 25 communicate similarly with the suction chambers 49, 50. The ring is mounted on trunnions in the pump casing, so that, by adjusting it; the stroke of the pistons may be varied or the pump reversed. Means are provided for locking the ring in! position.
Patent GB-115161-A (GB)
IPC: B23B27/08
Abstract: 115,161. Pountney, W. A., and Kay, C. B. Aug. 3, 1917. Milling-cutters.-A circular form-tool or milling-cutter employed to cut curved or other profiled surfaces on each side of a collar has profiled cuting-edges b and end cutting-edges c. The tool is made in two parts a separated by a circular wedge d by which the distance between the edges c is adjusted after grinding.
Patent GB-183257-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B19/12
Filed: 1921-04-21
Abstract: 183,257. Gardner, J. April 21, 1921. Cylinders, shapes of combustion chambers for. -In engines in which mixture is compressed by the piston the spherical combustion chamber a communicates with the cylinder by a tangential passage c. The cylinder head may be detachable, in which case part of the spherical chamber is formed in the head, and part in the cylinder body.
Patent GB-197327-A (GB)
Title: Improvements in slug detecting device for coin controlled machines
IPC: G07F9/00
Filed: 1923-04-30
Abstract: 197,327. Hedley, F., and Doyle, J. S. May 6, 1922, [Convention date]. Exhibiting coins.-An enlarged image of each coin deposited in a coin - freed machine is shown to attendants and others to reveal the presence of a spurious coin. An opening covered by a transparent plate 22 is made in the side of the coin shoot, Figs. 1 and 2, and in front of the opening is mounted in lips 19, 21 a prism lens 13 with one plane face 14 across the opening, the other plane face 15 being silvered and the spherical surface 16 being presented outwardly through the casing 17 of the apparatus. Each coin, after freeing the apparatus, is arrested in front of the lens by an arm 39, and its image is reflected from the surface 15. A lamp may be provided to illuminate the coin. Instead of a prism lens, a plain lens may be used, the coin shoot being given a quarter turn to bring the face of the coin opposite the lens. Coin action, electric-connection; coin-discharging mechanism.-The apparatus may be freed by a coin in any desired manner. In the form shown the coin bridges contacts 24, 25, Fig. 9, to complete an electric circuit and energize a magnetic relay 29 which rocks a shaft 32 carrying a finger 33. The finger 32 wipes past a blade 34 on an arm 35 carried by a rock shaft 36 having a pin and slot connection 41, 40 with the hub of the arm 39 permitting lost motion, so that, although the shaft 36 is rocked in both directions by the passage of the finger 33, the arm 39 is only moved once against a spring 42 to withdraw the pin 12 and allow the coin to drop to a money-box. The finger 33 may be a flat spring. Turnstiles.-The diagram, Fig. 9, shows a circuit suitable for use with coin-controlled turnstiles to which the invention is stated to be particularly applicable and comprising contacts 24, 25, a source of current 26, a contact device 27, a magnetic relay coil 29 and earth connections G.
Patent GB-398766-A (GB)
Title: Improvements in or relating to hydro-pneumatic shock absorbers
IPC: F16F9/48
Filed: 1933-04-20
Abstract: 398,766. Pneumatic and hydraulic shock-absorbers. CHARLES, M., 217, Boulevard St-Denis, Courbevoie, Seine, France. April 20, 1933, No. 11598. Convention date, April 20, 1932. [Class 108 (iii ). ] A hydro-pneumatic shockabsorber comprises a compressed air chamber a displaceable with respect to a liquid containing vessel l to which is fixed the stepped hollow rod e of a piston, bellows or like member c limiting the air chamber a, the rod being connected by a calibrated hole in a screw n with the liquid in the lower part of the vessel l so that when the shock absorber is compressed (1) liquid passes to the bellows &c. c through an annular orifice between the rod e and an apertured plug r on the end of the chamber, which orifice is gradually closed by the increases in diameter of the rod e, and also passes through a non-return disc-valve s - co-operating with the plug r, and (2) liquid passes from the vessel l through the calibrated hole and into the rod e and forces a piston f to move up the rod against spring-pressure. On extension of the shock-absorber, liquid flows back through the annular orifice, which gradually increases due to the decreases in diameter of the rod e, and is expelled from the rod e by the spring h acting on the piston f. The lower end of the rod e is secured by a nut j against the lower end k of the vessel l. Flattening of the bellows is prevented by a member w. Specification 250,596, [Class 103 (i), Brakes &c.], is referred to.
Patent GB-1199801-A (GB)
Title: Improvements in or relating to Colour Television Transmission
Inventor: HEIGHTMAN ANTHONY NORMAN
IPC: H04N9/09
Filed: 1967-03-13
Abstract: 1,199,801. Colour television. MARCONI CO. Ltd. 5 Jan., 1968 [13 March, 1967], No. 11607/67. Heading H4F. In colour television transmitting apparatus comprising three colour signal camera tubes producing signals E R , EG and E B  and a high definition luminance camera tube producing signal E Y , the invention relates to correction for the vertical component of aperture distortion in the luminance signal which does not require a delay line in the direct channel between the input and output terminals (L1 and L0, Fig. 3) of the luminance signal. In a first embodiment, Fig. 3, scanning rasters in the colour tubes are advanced relative to the scanning raster in the luminance tube by one scanning line and the resulting colour signals are delayed by one scanning line interval (delay lines RD, GD and BD) between their input and output terminals. The undelayed colour signals are combined in matrix M to produce a component correction or synthetic luminance signal Ey s  comprising 0À3 E R +0À59 E G +0À11 E B , which is added A1 to the luminance signal E y  at input terminal L1 after it has been delayed LD for one scanning line interval. The output of adder A1 is reversed in polarity by inverter P and added A2 to the luminance signal E y . The amplitude of the output from adder A2 is adjusted by an adjusting control represented by resistance AR and added A3 to the luminance signal E Y , the resulting luminance signal at output L0 being corrected for the vertical component of aperture distortion. In a second embodiment, Fig. 4 (not shown), both inputs to adder A1 are taken from matrix M, one input being taken thereto directly as in Fig. 3, and the second input being taken via a delay line (2LD) providing a delay of twice the scanning line period. This. second input replaces the input from L1 in Fig. 3. The adder A2 may be dispensed with so long as the control (represented by AR) for adjusting the amplitude of the correcting signal is ganged with a control for adjusting the amplitude of the undelayed luminance signal applied to adder A3. In a third embodiment, Fig. 5 (not shown), the low definition green signal is used instead of the low definition luminance signal (E YS ) and the green signal alone is delayed before transmission since only the scanning raster in the green colour tube is advanced by one line. In a fourth embodiment, Fig. 6 (not shown), the colour signals may be processed in accordance with a television system, e.g. NTSC, PAL or SECAM (Trade Mark) to produce a modulated colour sub-carrier which is delayed by a single delay device before transmission, the arrangement being otherwise as shown in Fig. 3.