baber/WOPTO huggingface dataset:
Patent GB-691676-A (GB)
Title: Improvements in or relating to launching and lowering gear particularly for ships' lifeboats
Inventor: MOORE WALTER GORDON
IPC: B63B23/04
Filed: 1949-06-23
Abstract: 691,676. Boat raising and lowering gear. NAREPA TRUST, Ltd. June 23, 1950. [June 23, 1949] No. 16674/49. Class 115. [Also in Group XXX] A lifeboat is supported at its two ends by a single fall-rope 26, Fig. 1, the rope passing round pulleys 25 and 22 and back to the lifeboat. Pulleys 25 are fixed on davit stands 10a, 11a, and pulleys 22 are mounted on nuts 21, mounted on screwed shaft 13 so that rotation of handles 20 causes the nuts to move along the shaft and to raise the lifeboat, the latter being lowered under its own weight under control of a brake at 14. Alternatively, the lifeboat may be raised by a winch rope 29 applied at the midpoint 28 of the fall-rope 26 and after the lifeboat is secured at the top of the davits, the fall-rope may be drawn off the winch by operation of handles 20 to separate the pulley. Handle 20 may be applied, alternatively, to the centre of the shaft, or the shaft may be rotated directly by a winch rope. In a modification, Fig. 5, the fall-rope is wound round pulleys 34 and 32, the fixed pulleys 34 being secured to the davit frames and the movable pulleys 32 being respectively connected by chains 30, 31 to winch drum 35 by handle 38. As before, movement of pulleys 32 causes raising or lowering of the lifeboat. Alternatively the lifeboat may be raised by application of the winch rope 29 or by directly driving winch drum 35 by a winch rope.
Patent GB-480843-A (GB)
Title: Improved limit gauges of the calliper type
Filed: 1937-06-16
Abstract: 480,843. Linear - dimension gauges. SKODA WORKS, PLZEN, and HROMADKO, V. June 16, 1937, No. 16713. Convention date, June 16, 1936. [Class 106 (ii)] The gauge comprises two parts slidable one in the other, one of which is provided with an opening through which passes a pin on the other with a certain clearance equal to the tolerance of the gauge. In the Figure the tube 1 is closed at one end by a plug the end of which forms one gauging face 2. A bar 4 slides in the tube and abuts at one end against a spring 5 the other end forming the second gauging face. A pin 6 fixed to the tube 1 passes through a hole 7 in the part 4 the hole being larger in diameter than the pin by the prescribed tolerance. A push lever 8 pivoted to a link 11 pivoted to the bar works in a slot in the bar and when pressed in forces the spring to the left, the gauge taking the minimum dimension. Instead of the linkage a conical knob may be pressed down on a seating to wedge the two parts apart. This feature is shown in an external gauge in which the tube is slotted and a vernier scale provided. In the bar several openings which may be of different diameter may be provided, so that by transferring the pin 6 to another opening the gauge can be used for other sizes and tolerances. In a further form the part 4 forms one anvil of a calliper gauge the tube being formed in the frame. The part 4 engages the short arm of a pivoted lever the long arm of which moves over a scale and forms a pointer.
Patent GB-256376-A (GB)
Title: Improvements in fish boxes
Filed: 1925-07-02
Abstract: 256,376. Blackburn, H. July 2, 1925, Roads and ways, arrangements of. - Rectangular wooden fish boxes are provided along each of the longer sides 13 with internal wooden battens or strengthening battens 17 of greater depth than width so that, when the boxes are arranged side by side at the docks for inspection and handling of the fish, the sides and battens of adjacent boxes from a platform or walking surface; similar battens may be fitted to one or both ends of the boxes.
Patent GB-930919-A (GB)
Title: Coating process
Inventor: LOVELL JAMES KNIGHT
IPC: C09D133/06
Filed: 1961-05-10
Abstract: Articles, (e.g. panels), are sprayed simultaneously with a coating composition comprising a dispersion of polymer particles, and a solvent for the particles.  Suitable polymers include polyacrylates, polymethacrylates, polyacrylonitrile polymers of acrylic and methacrylic acids and their amides and copolymers of vinyltoluene and butadiene.  The solvent may be a mixture and may include a copolymerizable monomer, e.g. styrene.  The coated articles may finally be heated.
Patent GB-1342984-A (GB)
Title: Data transmission selectors
IPC: H03M7/22
Filed: 1971-05-25
Abstract: 1342984 Selective signalling JEUMONTSCHNEIDER 25 May 1971 [28 May 1970] 17007/71 Heading G4H Some of the inputs to a selector are decoded using two-way switches feeding diodes and others using a tree of two-way switches, the two groups of decoded signals being combined using diodes and resistors to give the output of the selector. In the drawing, two inputs e 1 , e 2  of a combination of inputs e 1 -e 4  control relays R 1 , R 2  which via diodes d 1  mark 1 of 4 leads S-V (by not energizing it alone), the other two inputs e 3 , e 4  controlling a relay tree R 3 , R 4  to mark 1 of 4 leads, the two 1-out-of-4 markings being combined using resistors R and diodes d 2  to give a 1-out-of-16 output at A-P. The polarities shown can be reversed. The relays can be replaced by pairs of transistors, only one of a pair conducting at a time. Two such networks, using opposite polarities, can be combined.
Patent GB-722215-A (GB)
Title: Improvements in and relating to electron discharge apparatus
IPC: G06F7/38
Filed: 1952-07-07
Abstract: 722,215. Cathode-ray tubes. BURROUGHS ADDING MACHINE CO. July 7, 1952 [July 11, 1951], No. 17008/52. Class 39 (1) [Also in Group XIX] The electron beam is deflected to hit one of a number of electrodes by the residual magnetic flux produced in the deflecting coils. A cathoderay tube contains a cathode 35, Fig. 2, grid 36, accelerating electrodes 37, 38, focusing electrode 39 and electrodes 40-47 which are coated with secondary electron-hitting material such as silver magnesium alloy and are each earthed through a resistance 67 and supported by insulating rods carried by the shield 62 which is connected to a positive potential to collect secondary electrons. The beam is suppressed by a negative potential on the grid. Units A, B, C deflect the beam across one or more electrodes in accordance with the current in the coils 228, 229 and 230, each connected to a current source 48 by amplifiers 51. Means 60 are used to produce synchronism of the pulses for the grid 36 and those for the deflecting units. By altering the direction of the residual magnetic flux in the deflecting units, the number of electrodes is doubled. The electrodes 36-39 may be disc shaped and fixed together with the deflecting units on axial-insulating supports and are connected to terminals on one end of the tube, to the other end of which is fitted terminals connected to the electrodes 40-47. The curve surface of the tube is coated with carbon to form electrodes which are connected to side terminals. The ferrite deflecting units 98, 99, Fig. 8, are fixed to a yoke 100 on which are wound the coils 104. One of the coils only may be used to alter the direction of the magnetic flux. Dimensions of the units and coils are stated in the Specification. The electron beam is suppressed by the grid when a current pulse is flowing in a coil. For a binary adding device, two of the units A, B, C deflect the electron beam in accordance with the two binary numbers, and the electric current pulse in the other unit will depend upon the carry, which is delayed until a clearing pulse is applied to all the units. The magnetic flux in the units and the potentials of the electrodes are removed simultaneously before the next adding pulses are supplied thereto by pulses from the amplifier 56.
Patent GB-581102-A (GB)
Title: Improvements in and relating to electric arc welding apparatus
IPC: B23K9/12
Filed: 1944-09-06
Abstract: 581,102. Uniting by fusion. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 6, 1944, No. 17013. Convention date, Sept. 10, 1943. [Class 83 (iv)] In an arc welding apparatus the current is conducted to the electrode by one or more conductive rods held in lengthwise engagement with a longitudinal surface portion thereof. The electrode may be bare, or lightly or heavily coated with flux, the core in the last case having longitudinally spaced current-carrying contacts projecting through the coating. It may be formed of short lengths arc welded together, each section having one or more electrically conductive portions such as rings 25 extending to or slightly beyond the coating. The contacts may be spaced several inches from the ends of the sections so as not to be impaired during welding of the sections together. A tubular support 11 secured by a clamp 16 to a tube 17 clamped in a bracket 23 forming part of an automatic arc welding head 24 is provided with radially slotted holders 13, 14 for a number of longitudinal rods 10 of copper or copper alloy such as beryllium-copper, the ends of which are tapered and seated in the slots in the holders. The rods are encircled by a helical spring 19 which holds the rods in engagement with the' electrode 15 which is fed therethrough. The holder 14 is rotatable relatively to the holder 13 and support 11 to force them into engagement with the electrode by twisting them together about the electrode. The holder 14 may be threaded into the support or may be secured thereto by a set-screw. The current conductor 20 extending through a slot in the support 11 has a looped end held by a clamp 21 round the upper ends of one or more of the rods 10. The contact mechanism may be fluid cooled.
Patent GB-1030597-A (GB)
Title: Fitment for machining a hypocycloidal-toothed gearwheel
IPC: B23F23/00
Filed: 1965-04-22
Abstract: 1,030,597. Gear-cutting and grinding. P. PATIN, and J. J. CAUBET. April 22, 1965 [April 24, 1964], No. 17101/65. Headings B3D and B3K. Apparatus for machining a hypocycloidaltoothed gear 21 for a speed reduction unit or pump comprises a main rotating shaft 2 carrying an offset secondary shaft 17 on which a work-holder 20 is mounted for rotation, the rotating means including a fixed gear 16 coaxial with the main shaft and two gears 14, 15, carried on a frame 6 fast with the main shaft and one of which engages the fixed gear and the other of which engages a gear integral with the work-holder. The fitment is mounted so that the shaft 2 can be driven and the milling cutter 28 or grinding wheel 27 is mounted on the machine's cutter-spindle. The frame 6 is clamped to a boss 5 on the spindle and carries a balance weight 9. The shaft 17 is bolted to the boss 5 so that its eccentricity can be adjusted. Back-lash between the gears 26 and 15 is taken up by adjusting the frame 6 about the boss 5. In operation, the shaft 2 rotates carrying the gears 14, 15 around the fixed gear 16. The work thus rotates on the shaft 17 which itself rotates about the centre of the shaft 2.
Patent GB-183117-A (GB)
Title: Electrolytic process of recovering zinc from complex ores
IPC: C25C1/16
Filed: 1922-06-21
Abstract: In the recovery of zinc from zinkiferous materials by leaching with spent electrolyte and subsequent electrolysis, the concentration of soluble salts in the solution prior to electrolysis is so regulated that supersaturation will not occur at any subsequent stage in the process.  The ore or other material, if not already in an oxidized condition, is roasted to convert sulphides into oxides, and is then leached with sulphuric acid contained in the spent electrolyte, the acidity thereby being reduced to between 0.01 and 0.15 per cent.  The solution is decanted or filtered from the residue and treated with metallic zinc to neutralize the excess of acid and to precipitate part of the copper.  After separation, about 0.1 per cent of a strongly basic substance such as calcium hydrate or sodium hydrate is added.  The solution is then concentrated, preferably by evaporation, and after removal of the precipitated basic salts, is rediluted to the original volume.  An oxidizing agent may be added before or during the concentration, to precipitate iron as ferric hydrate or sulphate together with other metallic salts. The diluted solution is treated with zinc dust to remove copper and cadmium, and, after filtration, is passed to the electrolytic cells.  The basic residue removed after concentration is treated for recovery of zinc by first heating to between 100 DEG  C. and 300 DEG  C. to dehydrate any gelatinous silica and form salts which are less soluble in dilute sulphuric acid than the zinc compounds. The residue is then leached with water or very dilute sulphuric acid until the concentration of zinc in the solution is the same as that in the main solution, and is concentrated and diluted if necessary to regulate the proportion of other soluble salts.  If free from iron, it is returned to the main solution at the stage following the dilution of the latter; if it contains iron, it is returned at the stage preceding the addition of a base.  The residues after both metallic zinc treatments may be treated for recovery of metals such as copper and cadmium.  The soluble salts to be eliminated from the solution may be magnesium, calcium, sodium or potassium sulphates, or soluble silicates.
Patent GB-638060-A (GB)
Title: Improvements in and relating to apparatus for the production of "smoke" from finely divided materials
IPC: B05B7/14
Filed: 1948-06-25
Abstract: In the smoke generator described and claimed in the parent Specification, those parts which are subjected to the abrasive action of the powdered material comprise a fired or sintered mixture of finely divided clay and/or other ceramic material, e.g., hard stoneware.  Special hard materials made by the sintering and bonding of hard oxides such as "Sintox" (Registered Trade Mark) may also be used.
Patent GB-679628-A (GB)
Title: Improvements in cartons for housing lipstick refills
IPC: B65D5/38
Filed: 1949-06-29
Abstract: 679,628. Cartons. MALIN, N., MALIN, A., and GRESSWELL, J. J. June 29, 1950 [June 29, 1949], No. 17196/49. Class 18 A drawer-and-shell carton for a lip-stick or the like has transverse slits 8 in the sides of the drawer so that part of it, when withdrawn from the shell may be folded back to expose the lipstick end 3 for direct introduction into a holder while the body of the stick is held through the carton. The drawer may be triangular in section, flaps 4, 5, 11 extending from its base, fitting a rectangular section shell. The shell may have end closing flaps.
Patent GB-861621-A (GB)
Title: Improvements in and relating to air-cooled internal combustion engines
IPC: F01P7/04
Filed: 1959-05-20
Abstract: 861,621. Cooling cylinders. TATRA NARODNI PODNIK. May 20, 1959 [May 26, 1958], No. 17203/59. Class 7(2). [Also in Group XXVI] A variable slip hydraulic clutch 1 driving the cooling fan 7 of an air-cooled engine is situated in the housing 8 enclosing the timing gears 10 driving the cam-shaft. The clutch slip is controlled by varying the supply of pressurized lubricating oil through a pipe 5 by a valve 3 operated by a thermostat 4 responsive to the temperature of the discharged cooling air or to the temperature of the engine or exhaust gases. Alternatively the valve 3 may be operated electrically under the control of a bimetal thermostat fitted to the cylinder head. The clutch housing has openings 6 through which some of the oil in the clutch is sprayed to lubricate the timing gears 10.
Patent GB-152404-A (GB)
Title: Improvements in the jets of carburettors for internal-combustion engines
IPC: F02M19/03
Filed: 1919-07-10
Abstract: 152,404. Parker, W. R. July 10, 1919. Spray carburettors.-The carburettor nozzle is of the kind described in Specification 116,792, in which a fuel tube is enclosed in a casing to which air is admitted, the fuel being delivered through a series of lateral capillary passages in the head of the fuel tube into a series of air passages connecting the interior of the casing with the nozzle orifice. The nozzle a comprises a solid body member a<2> enclosed by a casing b, the air passages being formed by grooves a<4> on the exterior of the member a into which the capillary fuel passages a<3> open. The fuel supply to the bore of the member a<2> may be controlled by an interchangeable metering cap e. A pilot nozzle e<2> of similar construction may be provided, the supply of fuel to which is controlled by an interchangeable adapter e<4>. The main nozzle a and the pilot nozzle e<2> are mounted on a bracket j<2> forming part of the float-chamber casing, and the float chamber may be detachably secured to the body of the carburettor. In a modification, two or more auxiliary nozzles constructed as above described are used in conjunction with a main nozzle either similarly constructed or constructed as described in Specification 152,538, the discharge apertures of the auxiliary nozzles being arranged at different levels in the vicinity of the edge of the throttle valve. The auxiliary nozzles are opened up in succession during the initial opening of the throttle, but pass out of action at larger throttle openings.
Patent GB-1087542-A (GB)
Title: Improvements in the manufacture of phosphoric acid
Inventor: EDWARDS ROBERT HARRY
IPC: C01B25/225
Filed: 1964-04-27
Abstract: H3PO4 is prepared by reacting phosphate rock with H2SO4 in a cascade of vessels, recycling the major part of the product and mixing it with the phosphate rock in the first vessel of the cascade, and introducing the major part of the H2SO4 into the second vessel and the remainder into the first.  The non-recycled part of the product may have phosphate rock added thereto, and may then be filtered and the cake washed with H2O and/or dilute H3PO4 which may be recycled to the first vessel.  The filtrate, to which may be added pre-formed gypsum crystals, may be matured, at a temperature below that of the reaction, while being agitated, e.g. by blowing air therethrough. The proportion of H2SO4 in the first vessel may be 0.5-4% by wt.  Sand or other siliceous material may be added to the phosphate rock or to the first vessel.
Patent GB-129889-A (GB)
Title: Improvements in Turbine and Electrical Generator Plants.
IPC: F01D13/00
Filed: 1918-10-23
Abstract: 129,889. Chilton, W., and Brush Electrical Engineering Co. Oct. 23, 1918. Drawings to Specification. Motor power plant.-A high-pressure doubleflow turbine, preferably of the Ljungstr÷m type, drives two electric generators, one on each shaft and exhausts into one or two turbines, preferably of the duplex flow type, each of which drives one or two electric generators.
Patent GB-222572-A (GB)
Title: Improvements in and relating to refrigerating machines
IPC: F25B1/047
Filed: 1923-07-04
Abstract: 222,572. Groh, M. S. July 4, 1923. Refrigerating, compression machines for.-The compressor and condenser are housed in the two compartments formed by a substantially horizontal partition 2 in a gas-tight casing 1 having an open side which is closed by a detachable plate 5. The plate 5 carries an inwardly extending boss 5<x> to support the compressor 6. The expanded refrigerant passes to the compressor through a duct 13 in the boss.
Patent GB-111543-A (GB)
Title: Improvements relating to Boosting in Electric Distribution Systems.
Inventor: GILL HUBERT ALEXANDER
IPC: H02J7/34
Filed: 1916-12-05
Abstract: 111,543. Gill, H. A., (U.S. Light & Heat Corporation). Dec. 5, 1916. Boosting; systems of charging galvanic batteries.-In electric distributing systems having a stationary load such as lamps and a fluctuating load such as elevator motors supplied by a constant-volt generator and a battery, a booster is used with some of its armature windings in series between the generator and battery and other windings connected either across the main circuit or to a dynamotor supplying current at a voltage proportionate to the voltage of the main circuit. As shown in Fig. 1, the booster armature 10 has two independent windings, a low-resistance or series windings connected by bushes 19, 20 in series with the main lead 2, and a highresistance or potential winding connected by the brushes 17, 18 across the mains. The pairs of brushes are placed ninety degrees apart. No windings are placed on the field pole pieces. The booster is driven by a motor 24, regulating resistances 22, 25 being included in the high-resistance armature winding and in the motor circuit. An over-load circuit-breaker 23 protects both the motor and the high-resistance winding. During normal working, with a constant-current demand, the magnetizing effects of the two armature windings are arranged so that the booster has no effect on the system, the generator voltage being such that the battery floats on the line. On abnormal demand, the booster sets up an E.M.F. in the series winding opposing the generator and the battery discharges. When the load falls, the booster assists the generator to charge the battery. This arrangement without any alteration to the booster and its motor may be applied to a threewire system in which the battery is halved and end cells are provided to make up the voltage when the lamps are supplied from the battery; the halves of the battery are charged separately. In a modification field windings are used, the magnetizing effect of these being in line with and either assisting or opposing the magnetizing effect of the series armature windings. An adjustable shunt is provided for the field windings; these windings are either in series with the main lead 2 or placed across the mains on the load side of the booster. In the arrangement shown in Fig. 12, the booster armature has a single winding only, a dynamotor 78 supplying to the brushes 67, 68 a current at a voltage proportional to the voltage across the mains, the booster also having brushes 65, 66 in series with the main lead 41. The motor 77 driving the booster and the motor side of the dynamotor are controlled together by a single starting-switch 76. In a modification, the booster is driven by the dynamotor.
Patent GB-175156-A (GB)
Abstract: 175,156. Petter, G. B. Dec. 21, 1920. Cylinders, ports and passages of.-The exhaust ports 1 extend about half-way round the cylinders and their top and bottom edges, and the flat top 4 of the piston are inclined to a plane which is normal to the cylinder axis. The cylinder head is also parallel to the piston. The invention is used in an engine in conjunction with the lubricating system described in Specification 180,361, [Class 12 (iii), Lubricators &c.], and the air-tight crank-shaft packing described in Specification 175,940, [Class 122 (v), Stuffing-boxes &c.].
Patent GB-382589-A (GB)
Title: A calculating device for the record diagrams of apparatus recording periods of operation of machines or vehicles
IPC: G06G1/00
Filed: 1932-06-21
Abstract: 382,589. Calculating-apparatus. FABRIQUES DES MONTRES ZENITH, Le Locle, Switzerland. June 21, 1932, No. 17549. Convention date, June 24, 1931. [Class 106 (i).] Adding - apparatus.-The varying periods of operation of a machine as recorded on the usual clockdriven record disc b are summed by applying the disc concentrically to a similarly graduated disc a and manipulating the two discs so as to add the lengths of the " in operation " records. The manipulation is assisted by a cursor d carried by an arm pivoted centrally at the back of the disc a. A cylindrical boss c at the centre of this disc permits the application and rotation of the record discs. The results may be read from the disc a in terms of time or of percentages of normal running times.