baber/WOPTO huggingface dataset:
Patent GB-472240-A (GB)
Title: Improvements in cathode ray tubes
IPC: H01J29/16
Filed: 1936-03-20
Abstract: 472,240. Cathode - ray tubes; television. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. March 20, 1936, No. 8398. Convention date, June 14, 1935. [Classes 39 (i) and 40 (iii)] The picture screen consists of highly refractory metal, such as molybdenum or tungsten, having a thickness less than 20 Á and disposed without a backing in a cathode-ray tube so as to be struck and brought to incandescence by the cathode-ray. The screen consists of a plate 6 Á thick or a gauze of braided wires or parallel wires 8 on a frame 9. High potentials of the order of 10,000 volts are used and the ray may be accelerated between the anode and the screen. To avoid difficulties due to the production of ions, a directly heated cathode of tungsten or thoriated tungsten may be used instead of an indirectly heated cathode. The picture is so brilliant that it can be projected on an enlarged scale; a green filter may be arranged in the projection system to absorb red rays. Protective constructions known in X-ray apparatus may be adopted in view of the high voltages and the possible production of X-rays. Specifications 452,368 and 452,406 are referred to. The Specification as open to inspection under Sect. 91 comprises also screens of other refractory material, such as porcelain. This subject-matter does not appear in the Specification as accepted.
Patent GB-196458-A (GB)
Title: Improvements in money boxes or receptacles
IPC: G07F17/10
Filed: 1922-03-24
Abstract: 196,458. MacGlashan, J. March 24, 1922. Coin action, mechanical-connection; registering.-A coin-freed savings box comprises a receptacle upon the cover of which is mounted a coin-receiving slide 13 having a hinged and spring- controlled limb 15 which is adapted to grip a coin introduced at 23, and, in delivering it to the receptacle through an aperture 12, to actuate a totalizer 28 - - 30. The coins may be withdrawn from the receptacle through an aperture 44 normally covered by a second slide 43 which is actuated by the final element 30 of the totalizer when a predetermined amount has been registered. The return movement of the slide 43 to its normal position zeroizes the totalizer. The total registered is displayed beneath a window 62 normally covered by a rotatable shutter 36 which is actuated differentially by the slide 13 to indicate the insertion or non-insertion of a coin, being operated by the spring 61, when a coin is inserted, the shoulder 55 lifting the pawl 56 to release a pin 58 carried by the shutter, and by the shoulder 33 engaging a pin 59 on the shutter when no coin is inserted. A pawl 26 engages notches 25 in the limb 15 to prevent withdrawal of a coin when the slide 13 has been partly actuated, and a hooked bar 52 prevents. the insertion of coins behind the slide. A lever 72 actuated by movement of the slide 43 engages a shoulder 74 on the slide 13 to prevent that slide being actuated when the aperture 44 is uncovered.
Patent GB-340879-A (GB)
Title: Improvements in the preparation of filter elements particularly applicable for testing milk
IPC: G01N15/06
Filed: 1930-03-17
Abstract: Filter discs, applicable for testing milk, are prepared by perforating a strip or sheet of paper with one or more rows of holes of the size of the desired discs and applying to the paper a strip or small pieces of wadding or like filter material in such manner that the holes are covered thereby.  The filtering material may be gummed to the paper.  The edges of the paper may be doubled over the edges of the filter material.  Or the paper may be doubled over completely, holes in the folds being arranged to correspond.  Or two strips of paper with holes corresponding may be arranged to enclose a sheet of filtering material between them, the sheets of paper being gummed together.  Elements of the required size are finally cut from the strip.
Patent GB-968381-A (GB)
Title: Vehicles for travelling over water
Inventor: COCKERELL CHRISTOPHER SYDNEY
IPC: B63H1/38
Filed: 1960-03-11
Abstract: 968,381. Vehicles supported by gaseous cushions; paddle wheels. HOVERCRAFT DEVELOPMENT Ltd. March 9, 1961 [March 11, 1960], No. 8684/60. Headings B7K and B7V. A vehicle for travelling over water, has two parallel walls 1 depending from the body and has means to close the gaps between the ends of walls 1, the rear closure means including a rotatable paddle member 2 which acts, on rotation, as a pump to raise the pressure of air beneath the vehicle to at least partially support the vehicle. Two members 2 are manually operated to propel the vehicle and create the supporting cushion, and are separated by a flap 10, 11 which with a front roller 6 complete the closure means. The walls 1 give a variable degree of buoyancy to the vehicle. The roller 6 may be driven and may have blades which remove air from the cushion at a rate below the input by members 2, Fig. 5, not shown; the blades may be slidable in slots in roller 6 to be retracted on engagement with the vehicle. The members 2 are paddle wheels in Fig. 4, not shown, and as in Fig. 6, not shown; an inflatable cylindrical paddle wheel extends across the gap between walls 1. The gap at the front or back may be closed by a flap carrying a roller at its lower end. The air cushion may be divided by flexible flaps and the vehicle may be propelled by propellers, the engines being mounted in walls 1 or on the deck, Figs. 8, 9, not shown. The vehicle may be propelled by sails and the passage of the vehicle causes the paddle members to rotate to create the supporting cushion.
Patent GB-963996-A (GB)
Title: Amorphous alumina
Inventor: BONATH KLAVS
IPC: B01J21/04
Filed: 1960-03-11
Abstract: Amorphous alumina prepared in the absence of carbon dioxide is stabilized against conversion by ageing to any other form by contacting the alumina when freshly prepared with an aqueous liquid which is saturated with carbon dioxide.  The temperature of the aqueous liquid is desirably below 30 DEG  C.  The invention is applicable to amorphous alumina however prepared, for example the amorphous alumina arising from the methods of precipitation, hydrolysis or electrolysis, provided, of course, that carbon dioxide is absent during the preparation.  The carbon dioxide may be added to the amorphous alumina in slurry form, or in wash liquors or in storage liquors, and should preferably be present at all stages after the formation of the amorphous alumina. Examples illustrate the stabilization of amorphous alumina prepared by electrolysing an aqueous solution containing 0.1% by weight of ammonium formate at room temperature using a consumable aluminium anode and an aluminium or platinum cathode, and by the reaction of ammonia with aluminium sulphate.ALSO:Amorphous alumina is formed electrolytically using a consumable aluminium anode and a very dilute solution of ammonium formate. The settled precipitate is washed with CO2-water which prevents the conversion to boehmite, and may then be calcined at 550 DEG C., and still remain amorphous.
Patent GB-368534-A (GB)
Title: Improvements in or relating to electric dry battery cells
IPC: H01M4/10
Filed: 1931-03-20
Abstract: 368,534. Galvanic batteries. BUMKE GES., H. A., 8, Chausseestrasse, Berlin. March 20, 1931, No. 8638. Convention date, Jan. 26. [Class 53.] The dolly of a dry cell is provided with an insulating member 7 of pitch &c. at the lower end, and a fabric wrapping 3 which terminates at the lower end of the dolly and does not pass under the bottom. The wrapping is held in position by a lacing 5 which may pass under the bottom of the dolly or may terminate in several turns near the bottom of the dolly. The insulating cap 7 adheres to the lower end of the fabric wrapping.
Patent GB-704006-A (GB)
Title: Improvements in or relating to the fixing of an electrotype upon a base
IPC: G03F9/00
Filed: 1951-04-13
Abstract: 704,006. Printing surfaces. VEEN, O. VAN DER. April 13, 1951, No. 8710/51. Class 100 (2) A method of fixing an electrotype on a base is characterized in that an impression of an electrotype is made on a transparent carrier (e.g. a cellulose acetate sheet) after which at least one square corner is cut on the image carrier, the carrier being subsequently arranged against or upon a transparent plate 6 in such a manner that the image is turned away from the plate and the square corner regis'ers with a square corner on the plate. The electrotype is then fixed against the plate with the image facing the copy, during-which the image on the electrotype is brought into register with the aid of a mirror 7 arranged behind or underneath the plate 6, after which registering the base is so fixed by adhesive against the back of the electrotype that a square corner of the base fits exactly in the square corner of the plate in which also the image carrier has its square corner fitted. The apparatus for carrying out the registration comprises a chest 1 on which is mounted the plate 6, which may be hinged, the mirror 7, which may also be hinged, and a tubular lamp 8. The back 4 of the chest has compartments 5 in which furniture is stored. The invention is applied to the registration of multi-colour printing plates. The square cut corners are obtained by laying the transparent carriers one upon the other in register on a zinc plate under the mirror and cutting the corners with a knife.
Patent GB-1216051-A (GB)
Title: Novel compositions based on polyolefins
Inventor: BERNARD JEAN-CLAUDE
IPC: C08K13/02
Filed: 1969-02-18
Abstract: 1,216,051. Electro-plating. NAPHTACHIMIE. Feb.18, 1969[Feb.19, 1968], No.8726/69. Heading C7B. [Also in Division C3] Examples 8-9 are directed to the metal plating of 3 mm. thick and 25 mm. wide plates composed of isotactic polyphopylene composition containing 10 or 40% mica, 0À40% of the tetraester of 3- (3, 5- ditertiary butyl - 4- hyroxy phenol) - propionic acid and pentaerythritol, and 0À40% of dilauryl thiodipropionate. The plates are degreased with sodium hydroxide, neutralized with sodium bisulphite, attacked by a heated mixture of sulphuric acid and chromic acid, sensitized with stannous chloride and activated with palladium chloride. A nickel base layer is then formed on the plates by immersing them in a specified nickel chloride solution, nickel is deposited on this base layer by electrolysis from a nickel sulphate/nickel chloride bath, and, finally, a shiny copper or nickel plating 100 microns thick is obtained by further electrolysis from a copper sulphate or nickel sulphate bath.
Patent GB-785189-A (GB)
Title: Improvements in or relating to method and apparatus for electrodeposition
IPC: C25D5/00
Filed: 1956-03-20
Abstract: 785,189. Electrodeposition. TIARCO CORPORATION. March 20,1956 [March 25, 1955], No. 8743/56. Drawings to Specification. Class 41. A method of electrodepositing metal, e.g. chromium, from a bath having a poor throwing power on to an object having a multiplanar area, e.g. a twist drill, the toothed edge of a saw or the serrated edge of a gear-wheel, comprises covering the area with a porous, electrically conductive fabric, e.g. wire mesh or perforated metal sheet, and passing current between the object as cathode and an anode. The mesh may be 1/ 16  inch mesh, e.g. of copper or brass, and tightly envelops all sides of the area to be plated. The bath comprises 32 ounces of chromic acid per gallon and 0.32 ounces of sulphate in the form of sulphuric acid per gallon, a temperature of 120‹ to 125‹ F. being maintained and a current density of 3 amps. per square inch. Prior to plating, the object with the covering in position, may be anodically cleaned, rinsed, dipped in muriatic acid and rinsed, and during plating is suspended in the bath equidistantly spaced from a number of anodes.
Patent GB-656647-A (GB)
Title: Improvements in heat exchangers, liquid conveyors or condensers
IPC: F28B1/02
Filed: 1948-03-25
Abstract: 656,647. Screw pumps. LANGEN, L. H. DE. March 25, 1948, No. 8810. Convention date, April 2, 1947. [Class 110(i)] [Also in Group XIII] A heat exchanger which may also function as a condenser or a liquid conveyer, comprises an outer casing 7, a closed cylindrical core 10 extending therethrough, and at least one strip of channel section wound helically around the core to form separate fluid passages 1, 1a between the inner surface of the strip and the core and between the outer surface of the strip and the casing, the core and the wound strip being together rotatable in the outer casing. In the form shown, the strip is provided with side flanges 5, 5a, adjoining flanges being welded or otherwise secured to each other. The winding may be such that the joints between adjacent turns of the strip are disposed at the bottom of the groove as shown in the upper half of the drawing or alternatively at the outer surface of the wind- .ings as shown in the lower half of the drawing. A strip having a plurality of channels may be employed. Scrapers 17, 17a may be provided in the passage 1a. One fluid flows from an inlet 8 in the casing 7, through the helical channel 1a to the outlet 9 and the other fluid flows in contra-flow to the first fluid from an inlet 11, through holes 13a in the hollow shaft 13, through the helical passage 1 between the winding and the core to the outlet 12. The fluids may be liquid or gaseous.
Patent GB-604275-A (GB)
Title: Improvements in or relating to processes of producing starch conversion syrups
IPC: C13K1/00
Filed: 1944-05-09
Abstract: A starch conversion syrup free from bitterness is made by the acid hydrolysis at superatmospheric steam pressure, e.g. steam at 30-50 lb./sq. in., of an aqueous suspension of starch, e.g. a 20-24 DEG Be. suspension of maize starch, in the presence of not less than 0.5 per cent. based on the dry weight of the starch, of activated carbon of vegetable origin which will pass a 200 mesh screen to a product in which the ratio of total reducing sugars, calculated as dextrose, is 56-60 per cent. of the total solids of the liquid.  The pH of the liquid is preferably adjusted to 4.2-4.4, preliminarily to removal of the activated carbon, concentration, decolourizing by carbon, and further concentration.  Specification 509,710 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the employment of active carbonaceous material of vegetable origin in any quantity and of any degree of fineness.  This subject-matter does not appear in the Specification as accepted.
Patent GB-619771-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J21/36
Filed: 1946-03-21
Abstract: 619,771. Thermionic valves. HIVAC, Ltd., and DIGGLE, H. March 21, 1946, No. 8835. [Class 39 (i)] A thermionic valve comprises a flat filament mounting, at least one flat grid 11, and at least one anode 15, assembled by a simple stacking process of laying one electrode on top of another in a. jig with interleaved frames 10, 14 of insulating material between the electrodes ; anode extensions 16 are made to hold the assembly in place and may be bent over to embrace the assembly. The electrodes other than the filament may be of V or U-shape. The filament may be constructed as described in Specification 619,136 and carries a frame 8 for the getter material; the grid may be constructed as described in Specification 619,770, [Group XXII]. The anode 15 is preferably narrower than the frame 14 to leave an opening for the escape of gas trapped between the electrodes. The spacers 10, 14 may be of mica or ceramic material. The electrodes may be arranged as two valve systems, one on each side of the cathode.
Patent GB-827950-A (GB)
Title: Machine for baking endless wafer strips
Inventor: ASSMANN GUENTHER
IPC: A21B5/02
Filed: 1958-03-19
Abstract: 827,950. Continuous strip baking. HEBENSTREIT G.m.b.H., MASCHINEN-U. OFENBAU. March 19, 1958, No. 8867/58. Class 28 (1). In a continuous strip wafer baking machine, the dough or batter is supplied from a slit or nozzle tube 5 to the periphery of a drum 1 enclosed by rims 3 and closed by hinged-atone-side segments 8 provided with cam rollers 13 running on a cam rail 12 so that at the end of baking the segments hinge up to allow the baked strip to be led away for cutting up. Other cam rollers 20 on cam rail 19 close the segments 8 down lightly again on the drum to complete the baking enclosure. Heat is supplied from gas burner jets 22.
Patent GB-1104898-A (GB)
Title: Improvements in bottle breaking and crushing machines
Inventor: GREENWOOD RICHARD
Filed: 1966-03-01
Abstract: 1,104,898. Comminuting apparatus; crushing bottles. DILWORTH & CARR Ltd. 28 Feb., 1967 [1 March, 1966], No. 8911/66. Heading B2A. Apparatus for crushing bottles comprises a preferably two-part casing A, A<SP>1</SP> with a motordriven impeller b mounted in its lower end A and doors a at the upper end A<SP>1</SP>, the crushed glass being discharged through an aperture a<SP>2</SP> in the base of the casing. The apparatus is mounted on a base A<SP>2</SP> forming the lid of a dustbin. The upper part of the casing is detachable by loosening a screw or screws a<SP>5</SP>, and the apparatus may discharge into a container mounted in the lower portion of a wheeled cabinet. The doors a are inwardly hinged.
Patent GB-1131195-A (GB)
Title: Combination solder-desolder implement
IPC: B23K3/06
Filed: 1967-02-24
Abstract: 1,131,195. Vacuum apparatus. W.S. FORTUNE. Feb. 24, 1967 [Aug. 4, 1966], No. 8946/67. Heading F1R [Also in Division B3]. A device for soldering and removing molten solder comprises a piston, a heatable rod element which projects from a nozzle when in the soldering position and is carried by the piston and trigger means for retaining the piston adjacent the nozzle against a force producing means, the piston being urged away from the nozzle to create a vacuum when the trigger means is actuated. A pistol 10 has a tubular barrel 16 provided with a front muzzle member 24 and a rear bushing member 26 and a piston 28 is slidable in the barrel. The piston carries a soldering rod 42 which projects through a bore 40 in the member 24 and has front and rear tapered surfaces 30, 32 and a rear cylindrical part 34 carrying a sealing ring 38. A hollow cocking shaft 44 is slidably arranged in the bushing 26 and a tension spring 46 is connected at one end to the part 34 of the piston and at the other end to the rear end of the shaft 44. A trigger mechanism 64 comprises a pair of pins 66, 68 guided to move vertically and carried on a rocker arm 70 pivoted at 72 and a trigger actuating member 76 having an inclined surface 74 and spring urged forwardly. A spring leaf 86 carried on the member 76 is provided to feed solder wire 80 from a reel 82 in the pistol handle. A heater coil 88 is provided in the muzzle member 24 to heat the rod 42. In operation the shaft 44 is inserted into the barrel 16 to move the piston 28 forwardly where it is locked by pins 66, 68. The shaft is then withdrawn until a cam element 52 on the shaft is beyond a detent 56 in the barrel when the shaft is rotated to lock it in position with the spring 46 fully stretched. Valve ports 58, 60 on the end of the shaft 44 are adjusted to permit air exhaustion. The solder to be removed is melted, the trigger 76 is withdrawn to allow the arm 70 to rotate and thus allow the release of the piston 28 by the pins 66, 68. The piston then flies back to create a vacuum through the bore in the nozzle through which the solder is sucked. Instead of the detent 56 and cam 52 a key element on the shaft 44 may be employed to lock the shaft in its retracted position. The rod 42 may be additionally heated by an internal coil and may be temperature controlled. The solder dispenser tube 84 may be removable and a shear plate may be provided to cut off a length of solder at the muzzle end or a shear may be provided on the handle to cut off desired lengths from a coil. A modified solder wire feed comprises a boss to hold the leaf away from the solder wire when the trigger moves in the rearwood direction.
Patent GB-761092-A (GB)
Title: Improvements relating to regulating means for internal combustion engines
IPC: F02D9/00
Filed: 1954-03-26
Abstract: 761,092. Regulating. DAIMLER-BENZ AKT.-GES. March 26, 1954 [March 26, 1953], No. 8955/54. Class 7 (6). In a fuel injection engine in which the fuel supply is adjusted in dependence upon the position of a main throttle valve 2, Fig. 1, in the air intake pipe 1, a thermostat 9 actuates an auxiliary throttle member 8 to adjust the fuel-air ratio upon variations of the temperature of the intake air and/or of the walls in the engine contacted by said air. In Fig. 1 the fuel injection pump control rod 3 and throttle valve 2 are controlled simultaneously by an operating lever 7 and an auxiliary throttle member 8 is actuated by the thermostat 9 subject to the temperature of the intake air so that the valve 8 opens with increasing air temperature to maintain a substantially constant fuel-air ratio. The fuel injection pump may alternatively be controlled by a device 13, Fig. 3, responsive to the suction in the intake pipe slightly downstream of the valve 2 and the auxiliary throttle valve 14 may be situated in a passage 15 by-passing the valve 2. The thermostat 9, may be situated partly in the air intake pipe 1, Fig. 4, and partly in the cooling water jacket 20 surrounding the intake pipe.
Patent GB-351051-A (GB)
Title: Improvements in or relating to keying arrangements for use in high frequency circuits
IPC: H04L27/04
Filed: 1930-03-20
Abstract: 351,051. Wireless transmitting systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, and LUNNON, F. C., Westdene, Roxwell Road, Chelmsford, Essex. March 20, 1930, No. 8988. [Class 40 (v).] Radio or like telegraphy transmitters comprising an oscillator and one or more amplifiers are keyed in such a wav that one or more valves which act as amplifiers during marking periods have their circuits changed so that they function to maintain a load on the H.T. supply during spacing periods. As shown the circuit comprises an oscillator valve O and three amplifiers V1, V2, V3, all fed from H.T. supply B. The grids are biased from tappings Po .. P3 on an impedance Z which is included in a common branch of the supply circuit B. Keying is effected by a switch K which shortcircuits the impedance Z during marking and therefore allows the grid bias to be operative only during spacing. In one method of operation, the oscillator O ceases to maintain its oscillation during spacing owing to the prohibitive bias applied by the tap Po. The amplifier valves V1, V2, V3 continue to take plate current from the source B to an extent dependent on the bias supplied by the taps P1, P2, P3 ; and these are preferably adjusted so that the load during spacing is about one-quarter of the marking load. As an alternative a prohibitive bias may be applied during spacing to one of the earlier amplifiers, and the plate current load maintained by the later amplifiers.