baber/WOPTO huggingface dataset:
Patent GB-174513-A (GB)
Title: Improvements in apparatus for cutting worm wheels
IPC: B23F11/00
Filed: 1920-12-22
Abstract: 174,513. Matthews, F. Dec. 22, 1920. Gear-cutting.-In a machine for cutting wormwheels, a slide H carrying the spindle k of a hob K and a slide D carrying a worm spindle d, are adjustable on opposite faces of a bed A, supported at one or both ends on a bed-plate B. A spindle mounted in the bed A carries the work g, and a master-wheel c, which gears with the worm on the spindle d. The spindles l:, d are driven through bevel-gearing by spindles e, d<1>, which are rotated in unison by gearing E. The slide H is adjusted to effect the feed by a screw carrying a worm-wheel m gearing with a worm on the spindle of a hand-wheel m<1>.
Patent GB-1488343-A (GB)
Title: Method and apparatus for regenerating and manufacturing activated carbon
IPC: C01B32/336
Filed: 1976-08-31
Abstract: 1488343 Activated carbon NICHOLS ENG & RESEARCH CORP 31 Aug 1976 [2 Sept 1975] 35987/76 Heading ClA [Also in Division F4] Granulated activated carbon is produced or regenerated in a multiple hearth furnace, Fig. 1, the waste gases being passed to a wet scrubber 32 and part of the cleaned gases fed as a water saturated stream to the lower hearths 18, 20 of the furnace. The water saturated recycled gases provide the necessary stream for the treatment of the carbon, as well as reducing the temperature in the furnace to a desired level. The water saturated gases may be fed to a combustion chamber 46 external of the furnace structure, or may be fed directly to the lower hearths provided with burners (Fig. 2). An after burner 26 may be arranged at the top of the furnace or a separate after burner chamber may be provided.
Patent GB-1206408-A (GB)
Title: Improvements in or relating to television and like cameras
Inventor: SLARK NORMAN ARTHUR
IPC: H04N5/228
Filed: 1967-08-04
Abstract: 1,206,408. Television; cathode-ray tube Circuits. ENGLISH ELECTRIC VALVE CO. Ltd. 22 May, 1968 [4 Aug., 1967], No. 35992/67. Headings H4F and H4T. The photo-cathode of an image type storage pick-up tube is flooded with high intensity light during selected blanking intervals and the target is then scanned by the electron beam to reduce the charges thereon to a negligibly small valve. The invention is particularly concerned with television systems in which an imagetype storage pick-up tube is exposed to image forming light of low level and for a short period after which the target is scanned to "read-out" the image in one or two frame scans the object of the invention being to reduce to a negligibly small value the "remnant" charge image which remains as a result of this manner of operation. As shown, four neon gas-discharge lamps 9 and reflectors 10 (only two shown) are spaced 90 degrees apart around the tube so that when the lamps are alight, they flood-light the photocathode 2 with an intensity sufficient to raise the charge stored on target 3 above the "knee" of the characteristic connecting photo-cathode illumination and target charge. In the operation of the arrangement the lamps are ignited during the blanking period of every tenth field by means of narrow pulses (about 1 millisecond long) derived from a shaper amplifier 14 fed with the output of a divider 13 supplied from the field deflection (50 c.h.s.) circuitry 11. The output from divider 13 is also fed to a stretching and shaping amplifier 15 which produces output pulses each of two field periods duration and these are fed to the tube cathode 4 to intensify the beam during the next two field periods of scanning when the charge received by the target 3 from the lamps 9 is reduced to a negligibly small value. The pulse output from 15 is also fed to a gating amplifier the output from which renders a gated amplifier 17 non-operative to block the display on a monitor 16 of the output signals produced by the tube during these two periods. When the intensified beam has nullified the charge received by the target from the lamps 9 the beam is blanked and an optical image of the scene to be viewed is focused on the target. The beam remains blanked during the following six field periods during which time a corresponding charge image is formed and this charge image is then scanned during the subsequent two field periods to produce the required video signals. If the pick-up tube is moving relatively to the scene being viewed the effect of the motion of the optical image across the photo-cathode 2 may be cancelled by an auxiliary deflection produced by a coil 19 supplied with a suitable component of deflection from a current sawtooth generator 20 triggered by pulses of suitable form and direction from pulse shaping circuitry 14.
Patent GB-805925-A (GB)
Title: Method of and apparatus for driving and clinching nails
IPC: B27F7/04
Filed: 1955-12-16
Abstract: 805,925. Nailing. STEDLER, H. F. W. Dec. 16, 1955 [Dec. 20, 1954], No. 36170/55. Class 89(3) The pointed end of a nail projecting on the rear face of a workpiece is bent into a spiral form and is pressed flat against or into the workpiece by a rotatable anvil in a rotatable sleeve mounted for resilient axial displacement with respect to the anvil. In the embodiment described, a plurality of drivers 12 (one of which is shown in Fig. 3) depend from a bar 9 which receives vertical reciprocation from an eccentric drive mechanism. The drivers are guided in a beam 13 which is resiliently connected by springs 17 for vertical displacement with the bar 9. Each nailing operation comprises two strokes of the bar 9, on the first of which the drivers 12 enter sleeves 28 mounted in beam 19 carried by the beam 13 and force the sleeves 28 downwardly against springs 31 so that the pointed lower ends 29 of these sleeves pierce nail receiving holes in the workpiece (not shown in Fig. 3) which is supported on a table 51. When the first stroke is completed the beam 19 is slidably displaced so that sleeves 33, which hold nails fed from a hand or automatic supply arrangement 37, become aligned with the drivers 12 On the second stroke of the bar 9, the drivers enter the sleeves 33 and drive the nails through the workpiece. The pointed ends of the nails emerging from the lower face of the workpiece enter bores 76 of rotation sleeves 69 which are mounted for vertical displacement against springs 68, and within these bores the nails engage vertically stationary anvils 75 rotating with the sleeves 69, the ends of the anvils being provided with inclined surfaces 77, Figs. 10 and 11, which in co-operation with the walls of the bores 76, shape the projecting ends of the nails into spirals a2, Fig. 17, which are forced by the anvils flat against or into the workpiece b. The table 51 is pivoted at 49 for vertical displacement against springs 61, but during the first part of each stroke of the bar 9 is firmly held against such displacement until the piercing sleeves 28, or the nails, have been driven completely into the workpiece, after which the table is released, due to engagement of rollers 44 carried by the beam 13, with a cam 57 which rotates a spline shaft 52 out of supporting engagement with the table 51, to free the table 51 for downward yielding movement.
Patent GB-740303-A (GB)
Title: Improvements in gripper tongs, especially for soaking pit furnace cranes
IPC: C21D9/70
Filed: 1953-12-30
Abstract: 740,303. Lifting-dogs. MASCHINENFABRIK DEUTSCHLAND AKT.-GES. Dec. 30, 1953 [Jan. 7, 1953], No. 36209/53. Class 78(4). In a lifting dog in which the jaws 3 are urged about pivots 7 to grip a load by movement of rollers 4 along inclined fixed slots 2 the pivots 7 are moved together to bring the jaws into initial engagement with a load by a parallelogram linkage 8, 9, 10, 11 operated through sleeves 14, 15 from oppositely handed threads on a lead-screw 16. The lead-screw is suspended from the fixed casing 19 by a spring 29 and includes a square portion 17 which slides in a worm wheel 18 driven from an electric motor 28 through a hydraulic coupling 27 and a worm. The dog is suspended from pulleys 20.
Patent GB-753126-A (GB)
Title: Improvements in and relating to electric accumulators
IPC: H01M4/72
Filed: 1954-12-14
Abstract: 753,126. Batteries. AKTIEBOLAGET TUDOR. Dec. 14, 1954 [Aug. 11, 1954], No. 36222/54. Addition to 725,121. Class 53. An accumulator plate is suspended on rods that pass through holes in the frame 1 of the plate. To prevent contact between the rods and plate an insulating spacing member 2 is fitted in each hole the suspension rod passing through an opening 3 in the spacing member. The latter may be secured in position by pressing the material of the frame over the edges of the spacing member as shown in Fig. 2. Other methods of fixing the member 2 in position include riveting, making it in two parts which are attached to opposite sides of the plate, and making it in the form of an eyelet.
Patent GB-1062853-A (GB)
Title: Method of producing erythromycin esters
IPC: C07H17/08
Filed: 1965-08-24
Abstract: Erythromycin esters are produced by reacting erythromycin with a ketene of general formula <FORM:1062853/C2/1> wherein R and R1 are H, alkyl, aryl cycloalkane or heterocyclic ring and are the same or different, and n denotes 0 to 5, in an anhydrous medium, e.g. acetone, preferably below 0 DEG  C. The ketene may be formed in situ. The examples relate to the preparation of erythromycin propionate and erythromycin phenoxyacetate.
Patent GB-1516128-A (GB)
Title: Optical-electrical transducers
IPC: H01J31/49
Filed: 1975-09-03
Abstract: 1516128 Image converter tubes; semiconductor targets SIEMENS AG 3 Sept 1975 [4 Sept 1974] 36366/75 Headings HID and H1K In an optical-electrical transducer, e.g. a gamma ray camera, having, within an evacuated envelope 2, a semi-conductor component, e.g. a detector plate 8, and a component part containing an alkali metal, e.g. a photocathode layer 3, a surface region of the semi-conductor component is covered by a protective layer 16 of a material comprising a polymer containing monomeric units linked by imide groups. As shown, the 300 Á thick N-type silicon plate 8 has Al electrode strips 17<SP>1</SP> on one side, with orthogonal p-diffused electrode strips 17 separated by SiO 2  strips 50 on the other side. The protective layer 16 is thinner than 5 Ám., preferably being 0À1 to 1 Ám. thick, and consists of a polyimide which is the product of the condensation of one or more of m-diaminobenzene, p - diaminobenzene, 4,4<SP>1 </SP>- diaminodiphenylpropane, 4,4<SP>1 </SP>- diaminodiphenylmethane, 4,4<SP>1 </SP>- diaminodiphenylether, 1,5- diaminonaphthalene and 3,3<SP>1</SP> - dichlorobenzidine, with one or more of 2,3,6,7-naphthalene tetracarboxylic acid dianhydride, 3,3<SP>1</SP>,4,4 I  - diphenyltetracarboxylic acid dianhydride, 2,6 - dichloronaphthalene - 1,4,5,8- tetracarboxylic acid dianhydride, and pyrrolidene 2,3,4,5 - tetracarboxylic acid dianhydride. This coating may be selectively formed on the semi-conductor surface using a masking technique, and the coating may in addition be formed over electrodes, insulating layers &c. applied to the semi-conductor component. The gamma camera shown may be used to display the incident gamma image 15 on an oscilloscope in the manner described in Specification 1,319,179.
Patent GB-1007136-A (GB)
Title: Fluid flow control valves
Inventor: SMITH MATTHEW
IPC: E21D15/51
Filed: 1960-10-24
Abstract: 1,007,136. Valves. COAL INDUSTRY (PATENTS) Ltd. Jan. 24, 1962 [Oct. 24, 1960], No. 36497/60. Heading F2V. A pressure relief valve, for use in a pit prop, comprises an inlet passage, an outlet passage 20 and a closure member 21 co-operating with a seat 18 between the inlet and outlet. The valve closure 21 is loaded to a closed position by fluid pressure in an enclosed chamber 19 which is subjected to an adjustable loading provided by a spring 23 acting on a piston 22. This loading can be adjusted by an arm 25 acting on a member 24 or by movement of a piston 29 in a cylinder part 28. The arm 25 may be replaced by a screwed bolt acting on the member 24.
Patent GB-1321622-A (GB)
Title: Plate storage system
IPC: B65G1/04
Filed: 1970-07-30
Abstract: 1321622 Storage racks RAYSON ENG PTY Ltd 30 July 1970 [4 Aug 1969 27 Oct 1969] 36831/70 Heading A4T [Also in Division B8] A device for storing heavy gauge plates 3 comprises support means, with an underlying support surface, providing a plurality of upstanding tongues 1 and a storage section between the or each pair of tongues in which plates 3 may be located and supported on edge, the bases 6 of the storage section or sections being at an inclined angle to the support surface. The rack may be formed as shown by connecting two plates in parallel. The tongues 1 as shown may extend higher than plates 3, and feet 9 may be provided to enable racks to be superposed as a stack of racks. The top of corresponding tongues may be connected by a walk-way 8. Alternatively, the tongues may extend to a level below the tops of the stored plates Figs.2, 3, 4 and 6, (not shown). In either case, the edges of the tongues against which the plates rest may be inclined to the vertical.
Patent GB-333128-A (GB)
Title: Improvements in electric water heaters
IPC: H05B3/82
Filed: 1929-12-02
Abstract: 333,128. McLeod, L. M. Dec. 2, 1929. Heating by electricity.-A lidless jug, mug, pot, or the like of' insulating material has an apertured integral top plate 11 from which the heating element is suspended, and the plug connection 15 for the element is adapted to close completely the aperture. The heating element comprises grooved plates 25 carrying resistances 27 and mechanically and electrically interconnected by a metal rod 30. The resistance wires are retained in the grooves by split pins. Alternatively the plates may be in the form of a hollow cylinder or the heating element may be replaced by electrodes. The plug, Fig. 1, is formed by flat plates secured together by screws and carrying spring terminals 37. It beds on to a seating formed on the spout.. In Fig. 6 the plug is shaped to fit the spout.
Patent GB-759464-A (GB)
Title: A process for the preparation of hydrogen peroxide
IPC: C01B15/026
Filed: 1954-12-21
Abstract: In the production of hydrogen peroxide by the interaction in the gaseous phase of a primary or secondary alcohol and and oxygen, the oxygen as such or in the form of air is injected into a continuous steam of the alcohol in the gaseous state at a plurality of points along the gas stream, the pressure throughout the reaction being maintained at 3-70 atmos. absolute, the quantity of alcohol being in excess of the stoichiometric requirements throughout the reaction, and unreacted oxygen being continually present throughout the reaction.  The overall ratio of alcohol to oxygen should preferably be 2:1-20:1, more preferably 5:1-10:1.  The amount of oxygen added in each zone is preferably 0.25-0.01 mole, more preferably 0.1-0.04 mole per mole of alcohol in the zone.  The same proportion of oxygen is preferably added in each zone.  The residdence time of the alcohol is preferably progressively less from zone to zone in the direction of flow.  The total residence time may be 1-60 sec.  Not more than 90 per cent of the oxygen fed to the process is preferably reacted, in order to ensure the presence of unreacted oxygen in the alcohol throughout the reaction.  The residual amount of alcohol in each zone is preferably maintained at 10-500 moles per mole of oxygen.  The oxidation may be carired out in the presence of an inert diluent gas, e.g. steam, nitrogen or helium, which may be introduced together with the alcohol or oxygen.  The gaseous alcohol may be obtained by the vaporization of an aqueous azestrope, e.g. of isopropanel.  Other alcohols specified are ethanol, n-propanol, n-butanol, iso-butanol, ethylene glycol, sec-butyl alcohol, sec-amyl alcohol, cyclohexanol, allyl alcohol, and proargyl alcohol.  The reaction may be carried out in a single tube having oxygen inlets at intervals along its length (Fig. 1, not shown) or in a plurality of connected tubes arranged in series into each of which oxygen is injected (Fig. 2, not shown). The reaction tube or tubes may be heated by a fluid heat exchange medium or electrically.  Where a plurality of tubes is employed, each tube may be heated independently and each zone may be maintained at a different temperature.  Spherical instead of tubular vessels may be employed.  The vessels may be constructed of glass, stainless steel, porcelain, aluminium, tin or resin. The gaseous product may be condensed, and then distilled in the presence of water under reduced pressure.  Unconsumed alcohol together with alcohol produced by hydrogenation of carbonylic by-products may be recycled.
Patent GB-1201313-A (GB)
Title: Adjustable liquid feed and discharge means for centrifugal contercurrent exchange devices
Inventor: DOYLE WLADZIA GAJDA PODBIELNIA
IPC: B04B5/06
Filed: 1967-08-11
Abstract: 1,201,313. Centrifugal liquid/liquid extraction apparatus. W. G. P. DOYLE and C. M. DOYLE. 11 Aug., 1967 [11 Aug., 1966], No. 36919/67. Heading B1F. [Also in Division F2] Variable conduit means for controlling the liquid admission into a discharge from a liquid exchange device is disclosed in Specification 1,058,767 comprises a column 40, Fig. 9, comprising a plurality of conduits 44-47 and selector conduits 80, 81' having selector openings 89, 82, the conduits being removably secured to each other so that the positions of the selector conduits can be varied to any other position in the column. The column may include a stopper element 78, Fig. 5.
Patent GB-1194562-A (GB)
Title: Ultrasonic Brush
Inventor: PARISI TULIO
IPC: A61C17/20
Filed: 1967-08-12
Abstract: 1,194,562. Toothbrushes. CAVITRON CORP. 12 Aug., 1967, No. 37145/67. Heading A4K. In an interchangeable brush head for an ultrasonic tooth-cleaning implement, the bristle tufts 26b, d are retained in their sockets 16b, d, which may be either blind or open at both ends by an adhesive 35b. A hard epoxy adhesive may be shaped to form a recess 41, which supports the bristles laterally and prolongs their working life. In a modification, in which the root ends of nylon bristles are fused into a bead, the socket is over-filled with adhesive so as to form an external bulge (38, Fig. 6, not shown). The adhesive surface may also extend flush with the underface of a cast or machined aluminium stock 45. A protective layer 50 of closed cell sponge or foam rubber is covered by a thermoplastic outer layer 51. In other forms, the direction of the bristles is varied or a block (53, Figs. 11 and 12, not shown) of plastics material is surrounded by a ring of bristles.
Patent GB-1481767-A (GB)
Title: Electrode coating
IPC: C25B11/10
Filed: 1975-09-10
Abstract: 1481767 Electrodes ASAHI KASEI KOGYO KK 10 Sept 1975 [27 Sept 1974] 37261/75 Heading C7B An electrode e.g. anode for electrolysis of aqueous halide solution e.g. to produce LiOH, NaOH or KOH and C12 using a diaphragm or cationexchange membrane, or chlorate or Br 2  gas, comprises an anti-corrosive conductor, e.g. of Ti, Zr, Ta, Nb, alloy thereof or C, having a coating comprising a solid solution of at least one Pt group metal oxide and 1 to 50 mol per cent of Ti oxide and Zr oxide. The Pt group metal oxide is preferably Ru oxide or a mixture of Ru oxide and Pt,  Pd, Rh or Ir oxide. The coating may also contain silica, alumina, boron oxide or Pb oxide to accelerate formation of a solid solution. The mixed oxide coating may be formed by coating the conductor e.g. a Ti mesh with a solution of Pt group metal chloride e.g. RuCl 3 , ZrCl 4  and TiCl 4  in aqueous HCl, then heating at 300 to 700C in  air; this operation may be repeated 10 times. Other solutions are specified, e.g. containing TiBr 4  instead of TiCl 4  and in addition SiCl 4  and Na borate. Molten salt baths of the oxides may be used. Specifications 1351742, 1351741, 1261408, 1249300, 1206863, 1195871 and 1147442 are referred to.
Patent GB-1221167-A (GB)
Title: Electronic control for anti-lock brake system
IPC: B60T8/70
Filed: 1969-07-24
Abstract: 1,221,167. Antiskid brake systems. GENERAL MOTORS CORP. 24 July, 1969 [9 Aug., 1968], No. 37307/69. Heading F2F. An antiskid brake control system having a brake fluid pressure modulator 27 responsive to electrical control signals for applying and releasing brake line pressure and electronic control means for controlling the modulator by supplying brake-apply and brake-release control signals to the modulator includes an accelerometer responsive to wheel acceleration and deceleration for producing a signal proportional thereto, circuitry having a first signal level detector connected to the accelerometer for producing an output at a preset value of deceleration, a second signal level detector connected to the accelerometer for producing an output at a preset value of acceleration; and a signal producing circuit connected to both detectors and responsive to the outputs thereof for producing the brake-release control signal when the deceleration exceeds the preset amount of deceleration and the brake-applying signal when the acceleration exceeds the preset value. An accelerometer 10 of the inertia type and a D.C. tachogenerator 12 are driven by a vehicle wheel drive 14 which may be a wheel or a transmission shaft and their signals are fed to a control circuit 16 which operates a solenoid valve 18 in a pneumatic circuit 20 which includes on one side of the valve open to atmosphere an air restricting orifice 22 and an accumulator 24 and on the other side a passage 26 to the modulator 27 and another passage 28 containing a flow restricting orifice 30 and leading to a vacuum source such as a vehicle engine manifold. A further passage 34 connects the latter to the other side of the modulator 27. A piston 50 co-operating with a diaphragm 52 moves in response to variations in pressure caused by operation of valve 18 and a ball valve 66, which, when a ball 68 is seated prevents the flow of fluid in the hydraulic brake circuit, is unseated by movement of piston 50 to modulate the brake pressure.
Patent GB-865323-A (GB)
Title: Improvements relating to the forming of dielectric layers on aluminium foils for electrolytic capacitors
IPC: C25D11/04
Filed: 1958-11-20
Abstract: 865,323. Anodizing aluminium. ALUMINIUM-WALZWERKE SINGEN G.m.b.H. Nov. 20, 1958 [Nov. 23, 1957], No. 37403/58. Class 41. In a forming bath in which aluminium foil is subjected to anodic oxidation, the foil is screened from the action of the forming current by means of a shielding tube until it is immersed in the bath to a depth more than one centimetre, whereupon it is subjected to the full intensity of the forming current, and vapour bubbles adhering to the surface of the foil are removed by vigorous motion of the electrolyte relative to the foil. The tube may be immersed up to a depth of one metre below the surface of the bath, the preferred distance being 5 to 20 centimetres. The electrolyte may be 10% aqueous boric acid and the cathodes may be of stainless steel. As shown, the foil 1 passes into the bath 5 through tube 3 of plastic material fitted with an air-tight rubber seal 8 at each end. Air is introduced at 12 and escapes at 4, which protects the foil from the action of heated vapour rising from the bath. The foil may be passed through the bath at at least one, and preferably more than ten, metres per minute.