baber/WOPTO huggingface dataset:
Patent GB-1373601-A (GB)
Title: Spot positioning control for display tubes
IPC: G09G1/00
Filed: 1972-07-26
Abstract: 1373601 Cathode-ray tube circuits CROSFIELD ELECTRONICS Ltd 12 June 1973 [26 July 1972] 34979/72 Heading H4T In an arrangement for accurately positioning the beam spot of a cathode-ray tube (or the light spot produced by a mirror galvanometer) in a given position relative to a grating, the spot, the initial position of which may be (if unblanked) at 10 (Fig. 1A) is given an initial step deflection 12 (Fig. 2B), approximately equal to one-half of the grating pitch, which positions it (still blanked) at location 11 after which the beam is unblanked by pulse 13 (Fig. 2C) and deflected by ramp 14 until it impinges the first grating line 15 at which instant a photomultiplier produces a pulse 16 (Fig. 2A), resulting in the arrest of the ramp, the removal of the step 12 and after a delay, in the production of a step deflection 18 which deflects the beam (again blanked) an integral number of grating lines to a position such as 19 (Fig. 1C) at which, after a delay, the beam is again unblanked by pulse 22 (Fig. 2C) and deflected by ramp 23 until impingement with a desired line 21 results in the production of a further output pulse 24 from the photo-multiplier and the termination of the deflection cycle. The invention may be employed, e.g. in a photo-composing machine to position the spot at a location which will result in an image of a character produced at this location being formed in a desired position on a photographic film and it is stated that the arrangement of the invention is faster in operation than a known system which operates by counting pulses as the beam is deflected across the grating. Additionally, the present arrangement tolerates drift of up to 80% of the grating pitch in the initial position of the spot and up to 40% of the grating pitch in deflection distortion. The grating, the pitch of which may be 5 mm., is positioned over a part of the tube face.  Fig. 3, shows a block diagram of an arrangement for producing the waveforms of Fig. 2 in which under the timing control of four series connected monostable circuits 60, 62, 64, 66, the step deflection 12 is produced via a fine control register 38 and the ramp 14 commenced when mono-stable 60 is set by a start signal, the setting of monostable 62 commences the step deflection 18 provided by the coarse register 36, the ramp 23 commences when mono-stable 64 is set and when mono-stable 66 is set, the fine control deflection is again utilized to position the beam accuratly at a location between lines 21 and 25 determined by the fine control register, e.g. midway between these lines. A similar arrangement 86 controls deflection in the other co-ordinate direction.
Patent GB-1114654-A (GB)
Title: Method and diving apparatus for carrying out underwater operations
IPC: E21B41/06
Filed: 1966-08-04
Abstract: 1,114,654. Diving chambers. SHELL INTERNATIONAL RESEARCH MAATSCHAPPIJ N.V 4 Aug., 1966 [6 Aug., 1965],. No. 35048/66. Headings B7S and B7U. Also in Division E1] A diving apparatus for carrying out operations on an oil or gas well at the sea bottom comprises a living compartment 17, a decompression compartment 18, a water-look compartment 19, a working compartment 1, sealable manholes between these compartments, means for controlling the gas pressure in the working compartment 1 and means for maintaining in the living compartment 17 a breathing mixture of oxygen and helium at a pressure higher than the water pressure at the operating depth. Means are provided for controlling the gas pressure in the decompression compartment and for supply or discharge of gas or water at a desired pressure to or from the water-look compartment. In the embodiment described, the living compartment 17, the decompression compartment 18, the water lock compartment 19 and a supervisors' compartment 16 are arranged in a hollow torus-shaped body 9 on the upper side of a bell-shaped element serving as the working compartment 1.
Patent GB-507908-A (GB)
Title: Improvements in or relating to water closet suites
IPC: E03D1/28
Filed: 1937-12-18
Abstract: 507,908. Sanitary closets. ASSOCIATED CLAY INDUSTRIES, Ltd., and BUTTLE,A.F. Dec. 18, 1937, Nos. 35113/37 and 13254/38. [Class 26] In a water-closet suite having the flushing cistern 1 located with its bottom not considerably above the level of the rim flushing conduit 4 a bulbous projection 15 confined substantially to one side of the substantially vertical part 13 of the siphonic discharge conduit forms a restriction facilitating the siphonic action. In the form shown, an expansion in the conduit precedes the restriction, which has an upwardlyfacing step surface.. The cistern 1 is moulded in one with the closet structure, and supplies through a channel 7 to a flushing-rim 4, and through a conduit 9 to an opening discharging tangentially into the lower part of the basin. The conduit 9 may .extend from the channel 7, only the aperture 6. leading to this channel being then provided in the bottom of the cistern. Modifications are described in which the bottom of the cistern is level with the top of the flushing-rim, and the conduit 9 may be omitted.
Patent GB-395585-A (GB)
Title: Process for the production of plated zinc sheet
IPC: B32B15/01
Filed: 1932-12-13
Abstract: 395,585. Rolling compound metal sheets. JORDAN, F., 16, Bayernallee, Charlottenburg, Berlin. Dec. 13, 1932, No. 35267. [Classes 83 (ii) and 83 (iv).] Linking at specified temperatures.-For producing compound sheets of aluminium and zinc-alloy, a zinc-alloy containing 98-99 per cent zinc and 2-1 per cent aluminium is used. The pure aluminium sheet is rolled on to the zinc alloy sheet, white-heated to a higher temperature than that of the zinc-alloy sheet, both of these temperatures being within the limits 180-450‹ C. The plated sheet may be rolled out into metal foil. The aluminium sheet may be made of an aluminium-silver alloy. The sheets may be plated on one or both sides, and after plating may be heated to 150-300‹ C. Specification 354,202, [Group II], is referred to.
Patent GB-191077-A (GB)
Title: Improvements in moulding presses at high temperatures
IPC: B29B13/00
Filed: 1922-12-29
Abstract: 191,077. Bourdeaux, B. V. C. Dec. 29, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Moulding - machines. -A mass of a substance, requiring a high temperature to render it plastic, is heated while supported between the dies which are to shape it. The mass I is placed on the lower die B or on a combustible support or removable grate (not shown) and is heated by universally adjustable burners H fed with a mixture of acetylene or lighting, hydrocarbon, or producer gas, and air or oxygen at a minimum pressure of 50 c.m. of water. The flames are directed through holes G in a refractory sleeve F and when the mass is hot enough a valve controlling the supply to all the burners is shut gradually and pressure is applied by a die K operated in any known way. The lower die B, which is supported by a head A, and if necessary also by a ring C, is then lifted out by a hand or foot operated rod D.
Patent GB-872482-A (GB)
Title: Improvements in and relating to freezing apparatus
IPC: F25C1/06
Filed: 1958-11-05
Abstract: 872,482. Ice-making. TREPAND, G. Nov. 5, 1958 [Nov. 28, 1957], No. 35462/58. Class 29 In ice making apparatus in which water flows down vertical tubes 2 disposed in an evaporator 1, the ice tubes or rods are thawed-off by stopping the compressor 14 and circulating the liquid refrigerant by pump 25 through the evaporator and a heater 22. As shown the heater is heated by water which has been used during the freezing cycle to cool the condenser 17 but, in a modification, the heater is the condenser itself. During freezing, refrigerant flows through expansion valve 20 to the lower evaporator chamber 9<SP>1</SP> whence it rises through pipes 6 closing surrounding tubes 2 to the upper evaporator chamber 9 connected to the compressor suction by pipe 15. The central evaporator chamber 8 is connected to' chambers 9, 9<SP>1</SP> through cocks 12, 13 open during icemaking. To thaw-off, the compressor is stopped and cocks 12, 13 are closed as are cocks 16, 19 which isolate the evaporator from the compressor and condenser; then pump 25 is then started and cocks 24, 27, 29 are opened. This causes liquid refrigerant to circulate from the chamber 8 and heater 22 through chamber 9<SP>1</SP>, pipes 6, chamber 9 and pipe 23 back to the heater to thaw-off the ice. Heater 22 may include an expansion compensator 31. Specification 566,667 is referred to.
Patent GB-1483669-A (GB)
Title: Separation of particles from fluids
IPC: B04B5/00
Filed: 1974-08-13
Abstract: 1483669 Centrifugal separator A GONARD 13 Aug 1974 35533/74 Heading B2P An apparatus for separating particles from a fluid in which they are being conveyed comprises a rotor 11 formed of two conical frustums concentric and fast with each other so as to provide between them a truncated annular centrifugal separation zone of which, in use, the smaller diameter end receives the fluid and particles conveyed thereby and of which the larger diameter end opens into a chamber forming part of the rotor, so that, as the rotor is rotated, the particles are separated from the fluid in the centrifugal separation zone and are projected into the chamber and discharged via an opening in the chamber into a receptacle 12, whereas the fluid after discharge from the centrifugal separation zone into the chamber is drawn therefrom through the interior of the inner conical frustum by a suction source (not shown). The rotor 11 is mounted in a housing 1 the interior of which is divided by a partition 10 into isolated compartments 2, 3. The fluid, e.g. air, containing particles, e.g. granular or pulverulent matter, enters the compartment 3 at 8. The inner conical frustum has an upward cylindrical extension opening into the compartment 2 which has an outlet 9 connected to the suction source. An air inlet valve admits air automatically into the compartment 2 to maintain therein a constant reduced pressure.
Patent GB-497510-A (GB)
Title: Improvements in and relating to welding fluxes and flux-coated electrodes
IPC: B23K35/36
Filed: 1937-12-22
Abstract: A flux for use in are welding, particularly as a coating for an electrode, comprises 4 parts by weight of titanium dioxide, 1-5 parts of iron oxide (preferably 4 parts of brown ferric oxide), 2 parts of sodium carbonate, 1 part of silica, and 1/2 -5 per cent, calculated on the amount of the above ingredients, of hydrated lime.  The electrode, which may be of mild steel containing ,06-,18 per cent of carbon, ,15-,6 per cent of manganese, the percentage of manganese varying with the carbon content, ,07-,1 per cent of copper, and silicon, phosphorus, and sulphur totalling less than ,05 per cent, may be pickled, washed, dried to produce a thin rust or sull coating, and then immersed in a bath of water containing the flux, which is preferably heated and agitated by injection of steam.  The rod is then dried and reduced to the desired size by drawing through dies. Lubricants such as soap, hydrated lime, or soap and hydrated lime may be added to the flux bath, and soap may be used during the drawing operation.
Patent GB-413571-A (GB)
Title: Improvements in or relating to demodulators for frequency modulated waves
IPC: H03D3/00
Filed: 1933-12-18
Abstract: 413,571. Wireless receiving systems. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Dec. 18, 1933, Nos. 35623 and 35624. Convention dates, Dec. 16, 1932. [Class 40 (v).] In a demodulator for frequency modulated waves in which the signals are combined with a supplementary wave of the same frequency but with a relative phase displacement of ninety degrees, the two waves are applied to a detector with a curved characteristic, the amplitude ratio being selected so that the received wave causes only a limited portion of the curve to be used, whereas the operating point and hence the slope of the working range is varied in rhythm with the supplementary wave. The two waves may be applied to the same or separate grids of the detector valve. The supplementary wave is derived from or controlled by the incoming signal wave.
Patent GB-1534297-A (GB)
Title: Purlins
IPC: E04B1/24
Filed: 1975-08-29
Abstract: 1534297 Purlin assembly METAL SECTIONS Ltd 13 Aug 1976 [29 Aug 1975] 35639/75 Heading E1K A composite purlin is formed of a plurality of sections 15-21 connected together end to end by overlapping joints secured by fasteners e.g. nuts and bolts. At each joint a cleat is provided for securing the purlin to other roof structures. The distance γ<SP>2</SP> between the centre line of the end joint cleat and the inner end of the terminal sections 15, 21 is not less than the distance γ<SP>1</SP> between the said centre line and the outer end of the next adjacent inner sections 16, 20 respectively. The corresponding distances γ<SP>3</SP> in the other joints in the purlin being equal and less than γ<SP>2</SP>. Preferably γ<SP>2</SP> is greater than γ<SP>1</SP>. The sections may be of Z-shaped cross section. The cleats may be short angle section elements with one flange welded to other building parts and the other flange secured at the joint by coach bolts engaging in square holes.
Patent GB-859492-A (GB)
Title: Preparation of perchloryl fluoride
IPC: C01B11/24
Filed: 1958-11-06
Abstract: <PICT:0859492/III/1> perchloryl fluoride gas is produced by interaction of an inorganic perchlorate and a fluorinating agent consisting of a mixture of fluosulphonic acid and antimony pentafluoride. The influence on the yield of increasing the proportion of antimony pentafluoride is shown by the Figure.  The perchlorate may be added to the mixture or to either of the constituents before mixing.  Ammonium, lithium, sodium, potassium, silver, magnesium, calcium, barium, and nitrosyl perchlorate are specified. Sufficient fluorinating agent to dissolve the perchlorate completely is preferably employed, i.e. not less than about 5 parts of fluorinating agent per part of perchlorate.  The reaction temperature may be 70-130 DEG C. and the reaction time 2-24 hours. In continuous operation the reaction temperature is preferably 100-135 DEG C. and the reaction time 1-10 minutes.  Examples are given.
Patent GB-1127815-A (GB)
Title: Electrical connector
IPC: H01R12/72
Filed: 1966-08-10
Abstract: 1,127,815. Two-part couplings. HUGHES AIRCRAFT CO. 10 Aug., 1966 [24 Aug., 1965], No. 35773/66. Heading H2E. An edge connector comprises an insulating housing 10 having cavities 12 opening from a central recess 14, resilient insulating inserts 22, each of which carries contacts 20 on a pair of its opposite faces, being located in some or all of the cavities 12 and contacts which are wider than the contacts 20 being inserted directly into any remaining cavities. Each insert has a projection 64 which snaps over a central upstanding wall 24 in the housing 10 and a sloping outer surface which engages a corresponding surface in a cavity 12. Each contact comprises a flat metal strip folded into a contact loop 52 and a terminal loop 54, the loops resiliently engaging bosses 42, 44 and a sloping shoulder 48 on one face of the corresponding insert 22. The dontacts 20 are connected to leads 62 by contact pins 60 which are crimped to the leads, the pins 60 being inserted in the rear of the housing 10, on either or both sides of each contact 20, until projections on the pins engage recesses 58 in the contact terminal loops 54. Preferably the contacts are of an alloy of copper, nickel or beryllium copper and the housing 10 is of moulded plastics material with apertured extensions for securing to a support.
Patent GB-907386-A (GB)
Title: Production of polymerisation catalysts
IPC: C08F10/00
Filed: 1958-11-07
Abstract: Polymers are produced from olefins other than vinyl chloride or from an olefinic mixture other than in the presence of a preformed polymer, by use of a catalyst prepared from a reducible polyvalent metal compound and a reducing metal compound, which catalyst has been treated with 0,1-2,5 gm.-mols. (per gm.-atom of polyvalent metal) of an alcohol or 0,1-1,5 gm.-mols. of carboxylic acid, ester or anhydride but excluding peroxygenated forms thereof.  Alternatively, the reducible compound may be treated with the organic additive prior to reaction with the reducing compound.  Preferred catalyst ingredients are (a) aluminium compounds R2AlX (R = alkyl, cycloalkyl or aryl; X = H, halogen or has same meaning as R)-of which many examples are given; (b) a chloride or bromide of Ti or Zr.  A catalyst prepared from a trialkyl aluminium and TiCl4 is particularly preferred.  In examples, ethylene is polymerized using a catalyst prepared from Al (i-Bu)3, TiCl4 and stearyl alcohol, isobutyl alcohol, pine oil, acetic acid or trichloroacetic acid; many other catalyst additives are specified.  Specification 841,178 is referred to.
Patent GB-537211-A (GB)
Title: Improvements in and relating to emulsifiers
IPC: C09K23/00
Filed: 1938-12-08
Abstract: 537,211. Dispersing-agents ; esters ; food fats ; making emulsions. LUNDSGAARD, H. C. Dec. 8, 1938, No. 35860. [Class 2 (iii)] [Also in Groups I and III] In a process for preparing emulsifying or dispersing agents by esterifying fatty acids or re-esterifying fats with dihydric or polyhydric alcohol under such conditions that an ester, or mixture of esters, containing at least one free hydroxyl group is obtained, a mixture is esterified or re-esterified which comprises, in addition to an unsaturated fatty acid or fat which has been subjected to oxidation or polymerization, (a) a fat or a fatty acid obtained by hydrogenating an unsaturated fat or fatty acid, or (b) a fat having a melting point above or in the neighbourhood of 40C., or (c) the fatty acid derived from a fat having such melting point. The oxidation or polymerization of the 'unsaturated fatty acid or ester may be effected after the esterification or re-esterification. As alcohols are specified glycol, diglycol, polyglycol, glycerol, diglycerol, polyglycerols, erithritol, sorbitol and aldehyde- or keto-alcohols, e.g. mono-, di- or polysaccharides. In examples, oxidized and polymerized soya bean oil is dissolved in hardened whale or arachide oil (M.Pt. 50C.) and re-esterified with glycerol or with a mixture of di- and poly-glycerols. The products may be used for improving the water-binding power of emulsions of the water-in-oil type, and as anti-spattering agents in the production of margarine. Specification 494;639 is referred to.
Patent GB-1478150-A (GB)
Title: Fuel supply control system for an internal combustion engine
IPC: F02D7/00
Filed: 1974-08-14
Abstract: 1478150 Regulating fuel supply CUMMINS ENGINE CO Inc 14 Aug 1974 [22 Aug 1973]  35873/74 Heading F1B A fuel pressure regulating system for an I.C. engine with fuel injection comprises a throttle valve for controlling the fuel pressure at intermediate engine speeds, a governor for controlling the fuel pressure at maximum and minimum throttle openings for determining the maximum and tickover engine speeds and a regulator for varying the fuel pressure as a function of engine speed when under load. Fuel drawn from a tank 10 by a pump 22 passes via a line 29 into an engine-driven governor 16 which comprises a plunger 34 held in contact with governor weights 63, 64 by a spring 61. The plunger 34 controls flow from an inlet port 36 to outlet ports 38, 39. Throttle valve 44 receives fuel from port 39 and delivers it via port 55 to fuel injectors 11, the injection pressure being controlled by a throttle lever 58 via a cam 57 and a spring 54. When the throttle valve is closed and the engine speed is at tickover, fuel then passes from outlet port 38 via line 41 to the injectors 11, the tickover speed being maintained constant by throttling of the port 38. As the throttle valve is opened, fuel passes through port 55 to the injectors, port 38 is obstructed as the engine speeds up and fuel flows to the injectors only via port 39. If the engine reaches a preselected maximum speed, throttling at port 39 prevents that speed from being exceeded. A pressure regulator 111 permits a portion of the fuel flowing to governor 16 to return to the fuel tank via a spring loaded valve 119, the pressure in line 29 therefore being governed by the force of a spring 121 which is in turn controlled by the pressure in line 99 which communicates with a passage 91 within plunger 34, the passage being closed by a sealing member 76 held in contact with plunger 34 by spring 61. Fuel which enters passage 91 via ports 92 depresses sealing member 76 when the force due to the fluid pressure exceeds that of spring 61, the fuel returning via line 85 to tank 10. Since the force of spring 61 is a function of engine speed, the pressure in passage 91 and line 99, and consequently the force of spring 121 is dependent upon engine speed. When the throttle valve is fully open, and the engine is under load the engine speed increases, the action of regulator 111 therefore causing the pressure in line 29, and subsequently the injection pressure to increase with increasing engine speed. The force of spring 61 may also be varied by a lever 70 which with the throttle valve fully open, permits the governor 16 to maintain the engine at a constant preselected speed independent of load. In another embodiment, Fig. 4 (not shown) the regulator 111 is designed so that when the pressure in line 99 exceeds a given value, the spring force falls thereby permitting a fall in the pressure in line 29 and a consequent drop in the injection pressure.
Patent GB-1166166-A (GB)
Title: Electrical Socket Member
Inventor: SMITH JOHN
IPC: H01R13/648
Filed: 1967-08-04
Abstract: 1,166,166. Two-part couplings. M. & C. SWITCHGEAR Ltd. 19 July, 1968 [4 Aug., 1967], No. 35917/67. Heading H2E. In a plug-and-socket connector in which the plug member 14 is accommodated in an earthing socket 11 in the socket member (10), (Fig. 1, not shown), earthing is achieved by having a resiliently-flexible conductive corrugated ring 13, located by and projecting out of a peripheral recess 12 in the socket wall, the longitudinal corrugations serving to make good multi-point contact with the plug member 14 on the one side, and the socket member 11 on the other. The ring, which may be of phosphor-bronze, is compressed while being inserted into the socket 11 before being allowed to expand into the recess 12. In an alternative arrangement (not described in detail), the ring may be located in a recess in the plug.
Patent GB-1434458-A (GB)
Title: Arrangement for the exchange of optical information
IPC: G08C21/00
Filed: 1974-08-15
Abstract: 1434458 Automatic control systems INTERNATIONAL STANDARD ELECTRIC CORP 15 Aug 1974 [23 Aug 1973] 35966/74 Heading G3N [Also in Division H4] Optical information is exchanged between a pair of terminals, the information being stored on a ferro-electric ceramic plate in one terminal using a light beam, the position of which is detected and used to control a light beam positional control in the other terminal. As shown, information is recorded on plate 1 (unit A) by light emitting diode 14 on a mounting 15. Voltages or pulse, dependent upon the position of mounting 15 in two orthogonal directions are sent via link W e.g. a telephone fascimile terminal to unit B, where another light beam is moved in synchronism with (e.d. 14 to record the information on a second ceramic plate. The system can be used for two-way transmission. Details of the optical system are also disclosed (see Division H4).