baber/WOPTO huggingface dataset:
Patent GB-224219-A (GB)
Title: Improvements in or relating to heat-exchange apparatus
IPC: F28D19/04
Filed: 1924-10-23
Abstract: 224,219. Tirage et Ventilation MÚcaniques. Oct. 30, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Regenerators.-Fluids, the heat of which is to be exchanged, flow through adjacent conduits into both of which a movable member penetrates through slits in the walls, kept obstructed by the member itself. In the example shown, for heating air by the heat of waste gases, a series of rotating discs h extend into the two ducts a, b, through slits i in the dividing wall c which is bowed as shown to form a covered or uncovered channel for the rotating spindle f, or may be cut across for the same purpose. Other moving solids for example, endless bands, rotary cones, or sliding prisms may be used. Scrapers may be used to pack the joint at the slits and by the use of differing pressures in the conduits one fluid may be kept from any undesired admixture.
Patent GB-765709-A (GB)
Title: Improved room electric heater
IPC: H05B3/34
Filed: 1954-08-31
Abstract: 765,709. Electric room heaters. HAY. W. O., WYLIE, A. E., MALONE, E. J., and FABER, T. F. Aug. 31, 1954 [Sept. 2, 1953], ,No. 25277/54. Class 39(3) An electric room heater which may be used under floor coverings comprises a heating element 4, preferably formed of iron strip, located between sheets 7, 8 of insulating material such as oiled cambric stitched at 11 to form passages for the element. A sheet 9 of metal foil and a sheet 10 of fire resistant material such as asbestos are secured above and beneath sheets 7, 8 respectively. The sheets 7-10 and a topmost covering 13, which can be cloth or similar material, are secured together by stitching 12. Alternatively or additionally adhesive may be used. A heater in the form of a mat 6 feet x 3 feet may operate on 16 volts and consume 330 to 660 watts. The element may be of wire.
Patent GB-860878-A (GB)
Title: Automatic device for feeding workpieces to lathes or other machine-tools
IPC: B23Q7/04
Filed: 1957-08-12
Abstract: 860,878. Lathes; transferring blanks. REGIE NATIONALE DES USINES RENAULT. Aug. 12, 1957 [Sept. 21, 19561, No. 25387/57. Class 83 (3). An automatic device for supplying new workpieces to a lathe or other machine-tool and removing finished workpieces therefrom, comprises an arm pivoted on a support, and a two - part carrier rotatably mounted at the free end of the arm. The work-feeding device is carried on a support 1, 3, Fig. 1, adjacent the machine (broken lines) in a lathe for turning the ring-grooves of engine-pistons. Operation of the device is initiated when a tool-holder 56 is retracted to operate a switchcontact 51 controlling a solenoid valve 28, Fig. 4. The latter admits pressure to a fluid-cylinder 43, Fig. 1, which, through rod 25 and lever 26, rotates a pin 14, Figs. 3 and 4, supporting a hollow arm 13. The arm is provided at its free end with a two-part work-holding member 16, 16<SP>1</SP>. When the arm reaches its downward limit of travel a contact 52, Fig. 1, is closed, which moves the lathe-headstock and tailstock to bring a finished workpiece B into the empty holder 16. A cylinder-device 40, Fig. 3, secured to the side of the arm 13, is next operated to move a rack 31 and pinion 32 which, through bevel-gearing and a shaft 36, rotate the work-holding end to bring a fresh workpiece A into line with the lathe-centres. The headstock and tailstock again move automatically to remove the fresh work A, Fig. 4, from holder 16<SP>1</SP>, after which the arm 13 is moved to its upper position away from the lathe. At this position, a contact 55, Fig. 1, is closed which, through piston-and-cylinder mechanism, operates to eject the workpiece B on to a delivery ramp 5. Fresh workpieces are delivered, one at a time, and in their correct positions, on to a delivery ramp 10, from where they are moved transversely into the holder part 16<SP>1</SP> of the feed-arm 13.
Patent GB-723176-A (GB)
Title: Improvements in or relating to fibre softening machines
Inventor: GEORGE JAMES HAVELOCK
IPC: D01B1/30
Filed: 1952-10-10
Abstract: 723,176. Softening machines for jute &c. FRASER & SONS, Ltd., D. Oct. 5, 1953 [Oct. 10, 1952], No. 25409/52. Class 120 (1). In a fibre softening machine for jute, &c., of the type in which certain of a plurality of fluted rollers are driven by gearing from two side shafts 1, one on each side of the feed table 2, the two shafts 1 are positively connected to be driven by a motor 3 accommodated wholly within the confines of the machine. The motor may be disposed, as shown, so that the rotor axis extends parallel with the line of feed, and drives shafts 1 through spur gears 4 and chain gears 5, or through two trains of spur gears ; or the rotor axis may be at right angles to the line of feed, the gearing to shafts 1 including bevel gears.
Patent GB-587825-A (GB)
Title: Improvements in selective switching arrangements for open wire high frequency transmission lines
IPC: H01Q25/00
Filed: 1944-12-18
Abstract: 587,825. Wireless transmitting apparatus. MARCONI'S WIRELESS TELEGRAPH CO. LTD., and PANNETT, W. E. Dec. 18, 1944, No. 25410. [Class 40 (v)] [Also in Group XXXVII] A plurality of radio transmitters are selectively connected to a plurality of aerials by a system of switches. As shown in Fig. 1, three transmitter feeders T1, T2, T3 are crossed by four aerial feeders A1 ... A4 and switches S1 ... S9 are provided at each junction. Each switch has four contact arms C1, C1<1>, C2, C2' which co-operate with eight contacts 1 ... 4 1<1> ... 4<1>. When the switch arms are horizontal, the arms C2, C2' extend the transmitter feeders towards the right, whilst the arms Cl, C1<1> extend the aerial feeders downwards. When one or more of the switch arms are vertical, the arms C2, C2' break the through path along the corresponding transmitter feeder ; and the arms C1, C1<1> break the through path for the corresponding aerial feeder and connect a transmitter to an aerial or to an aerial feeder. In a modified circuit, Fig. 2. the number of aerials A1 ... A4 is the same as the number of transmitters T1 ... T4 and switches S1 ... S4. A ring circuit is provided and is completed when all switch arms are in the horizontal position connecting each transmitter to the corresponding aerial. When one or more switches are thrown to the' vertical position (switches S3, S4 as shown), the through connections T3, A3 and T4, A4 are broken, T4 is connected to A3 via the lowermost section of the ring, and T3. connected to A4 via the rest of the ring. Other permutations of the connections are effected by operating other switch combinations. Figs. 3 and 5 are front and side views of a suitable switch construction. Two insulating discs D, D<1> are secured to a shaft P which can be rocked through a right angle by cords hanging from a lever LE. The discs carry contact strips. C1, C2 which co-operate with spring contacts F1 ... F4 and each strip is arranged to bridge either a horizontal pair of contacts (e.g. F1, F2) or a vertical pair (e.g. F1, F4), according to the position of the lever LE. Indicating labels L are mounted near the respective contacts, which are supported by insulators I from-an earthed skeleton frame F of metal or metallised wood provided with bearings for the shaft P.
Patent GB-1352571-A (GB)
Title: Formation of electrical connections
IPC: H05K1/14
Filed: 1971-04-19
Abstract: 1352571 Soldering OWENS-ILLINOIS Inc 19 April 1971 [27 March 1970 28 Dec 1970] 25474/71 Heading B3R In making individual connections between conductors on a planar glass plate forming part of a gaseous discharge display panel and conductors on a flexible substrate, solder is provided between the conductors to be connected and heat is generated simultaneously at all the connections to melt the solder. Similar connections are thus made between conductors on another flexible substrate and conductors on the other planar glass plate of the display panel. A gas discharge display panel 10 formed by two glass plates 11, 12 joined in spaced relationship by an endless sealant spacer 17 and having linear electrode conductors 13, 14 respectively thereon has the ends of its conductors soldered to flexible cables 20-23. A gas filling tube 40 is provided in the panel. The conductors 13, 14 may be of gold and are formed by silk screen, photoetching &c. printing or may be wires and alternate conductors extend to one end of a plate and adjacent alternate conductors extend to the other end of a plate. The flexible cables may be formed by printing conductors on an insulating substrate or by providing an insulating coating or layer to conductors. The end of each cable remote from the panel may have a rigidifying strip or the conductors at the end may terminate as printed transformed secondary windings, and solid state circuit clips may be held on the cables. The soldering is effected by coating the ends of either or both conductors on the panel and cable with solder, supporting the panel on a table, placing the conductors on the cable upon the conductors on the panel and applying a transparent weight H, Fig. 2 on the conductors. Infra-red energy from an infra-red laser 50 is focused by lens 51 on the conductors and the solder is melted. Infra-red energy may also be directed from a source 52. Alternatively to or simultaneously with the application of infra-red energy the panel 10 is vibrated by a vibrator 60 to generate heat by friction between the conductors. Both the panel and the cable may be vibrated. In bonding all the connections to one plate at one time the plate is held by vacuum chucks and heated as before. An alternative source of heat is an induction coil and this may be used simultaneously with infra-red and vibrations. Resistance heating may alternatively be used with or without vibration.
Patent GB-503006-A (GB)
Title: Improvements in and relating to crankcases for internal-combustion engines having a plurality of radially mounted rows of cylinders
IPC: F02F7/00
Filed: 1938-09-01
Abstract: 503,006. Crank-casings for radialcylinder engines. JUNKERS FLUGZEUGUND - MOTORENWERKE AKT.-GES. Sept. 1, 1938, No. 26591. Convention date, Sept. 6, 1937. [Class 7 (ii)] Crank-casings for radial-cylinder engines are divided unequally along a plane parallel to the crank-shaft axis. The crank-shaft bearings 15 are formed integrally with the stiffening-webs 10 of the larger portion 7a. Lateral extensions 16 of the bearings guide the bearing caps 17. The upper surfaces of the parts 16, 17 do not project to any extent above the plane of separation of the crank-case in order to avoid the necessity for weakening the stiffening webs 11 of the upper or cover portion 7b. The webs 11 may be formed with machined lower surfaces pressing on the bearing caps 17 and also with ribs penetrating into grooves in the webs 10 on each side of the bearing. Short bolts 18 may be used to secure the bearing caps, or long bolts may traverse the parts 7b, 11 as well. Transverse bolts close to the plane of separation of the crank-case parts and bolts 9 may also be used. Cooling jackets may be formed in the cylinder seatings 30 and adjacent jackets used for bracing together the cylinders of the rows.
Patent GB-757218-A (GB)
Title: Means for varying the effective cross-sectional area of one part of a fluid flow duct such as a gas turbine engine air intake or a jet nozzle of a jet engine
Inventor: RAINBOW HORACE SINCLAIR
IPC: F16K13/02
Filed: 1953-09-17
Abstract: 757,218. Gas turbine & jet propulsion plant. ARMSTRONG SIDDELEY MOTORS, Ltd. Aug. 20, 1954 [Sept. 17, 1953], No. 25691/53. Class 110(3) [Also in Group XXIX] The effective cross-sectional area of a circular duct forming the air intake of a gas turbine engine or the outlet of a jet propulsion engine may be varied by means of a number of overlapping throat segments extending around. the wall of the duct and pivotally mounted outside the wall for movement about coplaner axis arranged on a pitch circle lying in a plane at right angles to the axis of the duct, each of the segments, which are moveable inwardly to reduce the effective area, being arcuate in radial cross section. The jet pipe 17 is provided with a divergent extension 19 with a flange 18 carrying brackets 16 in which are pivoted the bell-crank lever arms of the throat segments 12. A radial flange 44 on the pipe 17 carries actuators 46 making a forked connection 49 with a ring 22 coupled by spring blades 23 to the bell-crank levers. The surfaces 30, Fig. 3 on the segments are shaped to make a gas seal with the concave face of the flange 28 on the pipe 17. In Fig. 4 the flange is fitted with a spring ring 32 to contact the segments.
Patent GB-407373-A (GB)
Title: Method of producing electric discharge tubes
IPC: H01J9/04
Filed: 1932-09-16
Abstract: 407,373. Thermionic valves. LOEWE, S., 10, Wiesenweg, Steglitz, Berlin. Sept. 16, 1932, No. 25765. Convention date, Sept. 19, 1931. [Class 39 (i).] In the method of making a discharge tube in which a metallic vapour such as barium is oxidized by a metal-oxide coating on the filament to form the emissive oxide coating, the metallic parts of the tube are heated by high-frequency currents, during evacuation, to a temperature at which the vapour commences to emerge from the vapour-producing substance and the cathode is heated by radiation from the parts to a temperature which is below that required for the formation of the emissive oxide, the tube is sealed off, and the parts are again heated to generate the vapour, the cathode being additionally heated to the temperature required for the formation of the emissive oxide by connecting it to an auxiliary current source which, preferably, is regulable. The vapour may be generated from metallic barium which is protected against oxidation by a copper, nickel or iron coating or from a pill which contains a barium compound and a reducing agent. The compound within the pill may be reduced before it is introduced into the tube.
Patent GB-1353058-A (GB)
Title: Boron reinforced polyimide composites
IPC: C08L79/08
Filed: 1971-04-19
Abstract: 1353058 Boron filament polyimide laminate T R W Inc 19 April 1971 [25 May 1970] 25769/71 Heading B5N [Also in Division C3] Boron filament polyimide laminates are made by applying a solution or dispersion in an organic solvent of a heat-curable polyamideacid prepared by reacting a polyamine, a polyanhydride and monoanhydride where R is H or C 1 -C 5  alkyl, in approximately stoichiometric proportions of polyamine to total anhydride, to a drum covered with a terephthalic acid polyester film, applying a scrim cloth to the coated film, partially drying, applying further solution or dispersion, partially drying, winding boron filaments on to the drum (208 filaments/inch) and more solution or dispersion applied. The assembly is then partially dried, removed from the drum, further dried and cut into rectangular pieces which are pressed to form a 10 ply laminate at 315 C. and 100 p.s.i. Reference is made to Specifications 1,241,445 and 1,243,643.
Patent GB-1435326-A (GB)
Title: Automatic temperature control systems
IPC: B01L7/00
Filed: 1973-05-30
Abstract: 1435326 Automatic control of temperature UNION CARBIDE CORP 30 May 1973 [31 May 1972] 25807/73 Heading G3R [Also in Division G1] In a temperature control arrangement e.g. for liquid in a reaction chamber of a centrifugal analyzer, the chamber temperature is sensed and compared with a desired temperature value, the error signal being used to control the supply of heat to the chamber. In addition a rate limiting circuit detects the rate of increase in sensed temperature and compares it with an allowable maximum rate and if too high produces an inhibiting signal which causes the supply of heat to be cut off. A hold-off circuit prevents inhibiting signals from the rate limiter for so long as the sensed temperature is below a predetermined "hold-off" level, for instance during the initial warm up of the chamber or when a cold liquid is introduced. The centrifugal analyzer comprises a synthetic plastics disc 10 Fig. 1, on a rotor 11 and having a plurality of concentrically arranged cavities 22. When spinning, a reagent 26 in a cavity 24, (e.g. a glucose reagent), passes into a sample cavity 28 (e.g. containing blood serum) and both liquids pass via a passage 30 into one of a plurality of reaction chambers in the form of curvettes 32 within an aluminium ring member 34 fixed to the rotor. A thermistor 36 mounted on the ring member senses the temperature of liquid in the curvette 32 and is connected via slip rings to a control circuit Fig. 5. Hot air is introduced at 54 and leaves via openings 56 and is provided by an electric heater element and blower. CONTROL CIRCUIT. FIG 5. The thermistor 36 is connected in a bridge circuit 100 having variable resistors which are preselected by a switch 37 for setting the desired temperature. The bridge output is proportional to deviation in sensed temperature from the desired value and is amplified at 110. The rate of increase of the amplifier 110 output voltage is detected by a differentiating circuit R376, C374. A rate signal thus obtained is compared with an allowable maximum rate reference signal pre-set at 382. If higher than the reference signal, the output of an amplifier 380 will be positive. Thus a diode 355 will conduct an inhibiting signal to a trigger circuit 120 whereby to prevent firing of a triac 130 in series with a heating element 62. If the rate signal is lower than the reference the output of amplifier 380 will be negative and will therefore be blocked by diode 355. The triac and heater will therefore be controlled in dependence upon the error signal output of the bridge amplifier 110 until the temperature sensed reaches the desired value and thereafter the temperature will be maintained at  the desired value. A voltage representing the hold-off temperature level is pre-set at 350 and is compared with the bridge amplifier output voltage in a differential amplifier 344 which will produce an output to a diode gate 165 to block the inhibit signals, if any, from the rate limiter 160, if the sensed temperature is below the hold-off level.
Patent GB-1109806-A (GB)
Title: Improvements in the interconnection of electrical circuit devices
IPC: H01L21/60
Filed: 1966-06-09
Abstract: 1,109,806. Soldering. SPERRY RAND CORPORATION. 9 June, 1966 [22 June, 1965], No. 25819/66. Heading B3R. In order to connect the terminal portions 12 of an integrated circuit device 10, e.g. of a semiconductor device, to corresponding terminal areas 24 of a thin-film or printed circuit device gold spheres are applied and bonded to the terminal portions 12, being simultaneously deformed to some suitable pedestal shape 22, solder 28 is applied to the terminal areas 24 and the devices brought together so that the gold pedestals 22 project into the molten solder areas 28 and become partly dissolved therein to form the desired interconnections. The gold spheres may be applied to the terminal portions with pressure by a heated vacuum holder (Fig. 2, not shown), to effect a thermocompression bond or ultrasonically bonded thereto. The solder may be applied by dipping or by vacuum deposition and a lead-tin, lead, tin or silver-copper solder may be used. The solder may be reheated to melt it or where it is applied by dipping the gold pedestalled device may be applied before the solder has solidified. The semi-conductor device 10 may be connected in this way at more than three terminal points to a printed circuit or similar device.
Patent GB-1042508-A (GB)
Title: Improvements in and relating to oil seals
Inventor: JAGGER ERNEST THORTON
IPC: F16J15/32
Filed: 1962-07-05
Abstract: 1,042,508. Oil seals. GEORGE ANGUS & CO. Ltd. June 27, 1963 [July 5, 1962], No. 25841/62. Heading F2B. A rubber oil seal having a sealing lip 2 is reinforced by an L-section metal or other rigid ring which is embedded in the seal and has an axial flange 8 and a substantially radial flange 7 which is axially inclined so that it forms an acute included angle with the axial flange 8. The seal may be an internal one, as shown in Fig. 1, with the sealing lip on the inner periphery or an external one, Fig. 4 (not shown), with the lip on the outer periphery and the lip may be urged inwardly or outwardly respectively against the surface to be sealed by a garter spring 4.
Patent GB-438989-A (GB)
Title: Improvements in or relating to television or like apparatus
IPC: H04N3/06
Filed: 1934-09-08
Abstract: 438,989. Television. BAIRD, J. L., and BAIRD TELEVISION, Ltd., 58, Victoria Street, Westminster. Sept. 8, 1934, No. 25879. [Class 40 (iii)] A television receiving arrangement includes a lens arranged to project an image of the reconstituted picture and a second lens coincident with the image produced by the first lens and positioned to form an image of the first lens. The arrangement may be utilized in a cathode-ray receiver or, as shown in the Figure, in a mechanical scanning system in which a plano-convex cylindrical lens 3 is located at the position occupied by the image of the picture reconstituted by the mirror drum 1 and projected by a lens 2 of large aperture. The plano-convex cylindrical lens 3 may be replaced by a lens combination including spherical and cylindrical components and a translucent screen may be introduced between the lenses 2, 3 and located adjacent the lens 3. The field of useful vision may be confined to a horizontal band.
Patent GB-754182-A (GB)
Title: Improvements in or relating to the reduction of oxidic iron ore to metallic iron
IPC: C21B13/00
Filed: 1954-09-07
Abstract: 754,182. Reduction of iron ores. TEXACO DEVELOPMENT CORPORATION. Sept. 7, 1954 [Sept. 14, 1953], No. 25907/54. Class 72. Finely divided iron oxide ores are reduced in a fluidised bed by passing hydrogen therethrough under the following conditions:- (a) hydrogen of at least 90 per cent purity is used ; (b) the temperature in the reduction zone is between 700‹ and 1050‹F.: (c) the hydrogen pressure is between 250 and 600 psig.: (d) the ratio of recycled gas to fresh gas is at least 5 : 1, water being removed from the exhaust gas by cooling before recycling. As shown, hydrogen is supplied to a heat exchanger 4 to raise its temperature to 300‹-550‹F. above that required in the reducing chamber 6 and iron oxide of particle size 10-3000 microns is added from the hopper 1 to the hydrogen stream. The reduced ore is removed from the reducing chamber 6 through a pipe 16 in a quiescent area 12 and melted, with the addition of lime in a furnace 20, e.g. an electric furnace. The speed of the hydrogen through the bed of ore may vary between 0À5 and 5À0 feet per second. The exhaust gas passes through a cyclone 10 to remove any entrained particles of ore and then cooled and scrubbed to reduce the water content to below 1 per cent. The gas for recycling is heated in a heat exchanger 29, brought to the required pressure by a compressor 37, heated to the required temperature in a heater 38, and added to the stream of fresh hydrogen entering the reducing chamber. A small quantity of recycle gas may be passed into the quiescent zone 12 to prevent agglomeration of the particles. The ore preferably has a silica content below 15 per cent.