baber/WOPTO huggingface dataset:
Patent GB-734063-A (GB)
Title: Improvements in self-tapping insert
IPC: F02F1/24
Filed: 1953-05-29
Abstract: 734,063. Screw-sockets. GROOV-PIN CORPORATION. May 29, 1953 [June 4, 1952; March 16, 1953]. No. 15042/53. Class 89(1). [Also in Groups XXII and XXVII] An internally-threaded insert, particularly for the mounting of a sparking plug in a cylinder head, comprises a metal tube having an external thread 16 tapered at its leading end and interrupted to form a threadcutting portion 18, the interruption stopping short of the leading face of the insert. The interruption is formed as a circular bore. Alternatively, several diametrically opposite holes may be drilled or the interruptions may be in the form of a closed slot. The insert is of stainless steel or case-hardened and plated steel.
Patent GB-937040-A (GB)
Title: Improvements in methods and apparatus for making glass rods and glass tubes
IPC: C03B17/04
Filed: 1960-04-29
Abstract: 937,040. Glass manufacture. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 29, 1960 [May 2, 1959], No. 15158/60. Class 56. In the manufacture of glass tube or rod by feeding a glass stream to one end of an inclined mandrel rotated about its longitudinal axis so as to develop a glass envelope thereover, the envelope on the mandrel is heated in a heating zone so that the temperature of the outer surface increases therein, the outer surface then being cooled to allow the envelope to be drawn off the mandrel. The initial temperature of the glass flow may therefore be only sufficient for continuous flow so that surface volatilization is reduced with consequent less stripes in the final tube or rod. Glass 1 at temperature P is flowed on to a rotating mandrel 2 to form an envelope 3 which passes through a zone 6-7 where it is heated by radiation from a heating device 4, so that the temperature rises from Q to R. The glass is then allowed to cool along an elongated mandrel to L or, as shown, is cooled by a radiation zone 5 to reach the same temperature at E. Normal cooling with an initial temperature D is shown in the dotted line. The zone 6-7 preferably starts where the overlapping of adjacent turns ceases.
Patent GB-1262318-A (GB)
Title: Catalytic conversion of exhaust gas impurities
Inventor: KEARBY KENNETH K
IPC: B01J23/00
Filed: 1969-03-24
Abstract: 1,262,318. Purifying exhaust gas. ESSO RESEARCH & ENG. CO. March 24, 1969 [April 23, 1968], No. 15235/69. Heading F1B. In a method for purifying a fuel-rich exhaust gas from an I. C. engine the exhaust gases are contracted, without adding external oxygen to the exhaust stream, at temperatures in excess of 800 F. with a catalyst comprising a packing or bed of an unsupported alloy comprising nickel and copper or nickel, chromium and iron to reduce the nitrogen oxides content of the exhaust gas. The unburnt hydrocarbons and carbon monoxide may be oxidized by adding oxygen or air and contacting the gas with a second unsupported catalyst at a temperature in excess of 800 F. The second catalyst may be a metal or alloy of Groups IB or IV to VIII of the periodic system. The catalyst may be in chip or sintered form or metallic wool, screens or gauzes heated by flame or electrically.
Patent GB-515097-A (GB)
Title: Electron multiplier
IPC: H01J43/26
Filed: 1938-05-23
Abstract: .515,097. Electron multipliers. FARNSWORTH TELEVISION, Inc. May 23, 1938, No. 15283. Convention date, June 5, 1937. [Class 39 (i)] In a multiplier, the secondary electrons are subjected to a field to deflect the ions out of the electron path. A multiplier comprises an indirectly- or directly-heated cathode 5, Fig. 1, space charge grid 6, control grid 7, and secondary-electron-emitting members each in the form of an annular cup 9 having one wall joined by a metal ring 11 and a ring 10 of knitted fabric. A final plateshaped secondary emitter 25 and a collecting mesh 21, supported by rings 24, are also provided. Signals are fed to the control grid through a condenser 26. The electrostatic field existing between the electrodes causes the electrons to flow in the path indicated by the light arrows, and the ions in the paths indicated by heavy arrows -to fall on surfaces which are not sensitized to emit secondary electrons. By using resistances 35 and potentials which will given an increased secondary emission, the device may be made regenerative. Similarly, the devicemay be used for reverse feed back if the secondary-electron emission is small. For use as a modulator, radio-frequency potentials are applied to the grid 6 through 40, Fig. 2, and the modulating signal to the secondary electrode 9 which is connected to 'the source 29 of direct potential through an impedance 35. If the condenser 41 is omitted, both the radio-frequency and the modulating signal may be applied to the grid. In another form, the carrier and signal frequencies may be applied to separate grids. The output circuit 42 is connected to the collecting electrode 25. In a further form, photo-electrons from an image dissector are projected through a scanning aperture on to a conical secondary emitter. In other forms, curved surfaces 60, Fig. 4, are used, only those parts on which the secondary electrons are projected being sensitized, and a collecting anode 65 is provided. Fig. 5 shows another construction of secondaryemitting electrode 67 adapted to produce linear operation. Specification 482,026 and 494,351 are referred to.
Patent GB-427063-A (GB)
Title: An improved resilient coupling for rotating shafts
IPC: F16D3/12
Filed: 1934-05-22
Abstract: 427,063. Yielding shaft couplings. FAIREY AVIATION CO., Ltd., Cranford Lane, Hayes, Middlesex, and FORSYTH, A. G., Venlaw, Burdon Lane, Cheam, Surrey. May 22, 1934, No. 15299. [Class 80 (ii)] In a yielding shaft coupling, a pair of levers k, pivoted on pins m mounted in arms j projecting from one shaft g, have teeth n engaging teeth d in the interior of a ring c carried by the other shaft, and springs p are interposed between the ends of each lever and radial projections h on the shaft g. One or each of the shafts may be in the form of a sleeve splined on a shaft proper, whereby the teeth d, n may be axially separated and then reengaged in a different relative angular position of the shafts.
Patent GB-399269-A (GB)
Title: Improvements in or relating to the formation of relief images for photographic and other purposes
IPC: G03C1/64
Filed: 1932-05-31
Abstract: The method of forming a colloid relief image described in the parent Specification is modified by employing two supports, one of which may be a film or paper bearing a layer containing a reducible light-sensitive compound, and the other a film, paper, glass, linoleum, metal &c. bearing a layer containing the colloid and an organic acid or a salt thereof, exposing the first layer to light to produce a latent image, bringing it into damp contact with the second layer in order to produce by chemical contact action a latent image in that layer, and heating the second layer for example to 90-130 DEG C., before or after removal of the first layer, to develop in the colloid a relief corresponding to the image.  Alternatively the first layer may contain also an organic acid or a salt thereof, and the second layer may contain also a light-sensitive metal compound, in which case both layers are exposed to light to produce a latent image, whereafter they are placed in contact so that the image in the first layer may reinforce, by chemical contact action, that in the second layer. The second layer may contain acid sodium phosphate in addition to the organic acid or salt.  As light-sensitive compounds are instanced salts of heavy metals such as ferric ammonium citrate or oxalate, ferric chloride or sulphate, potassium ferricyanide or mercuric or mercurous nitrate, chloride or sulphate, and it is stated that ordinary ferroprussiate paper will serve as the first layer.  As organic compounds are instanced soluble carboxylic acids such as oxalic, citric, tartaric, formic, malic or lactic acid, or salts thereof.  Reference is made to the addition of borax to the relief-forming layer to increase the hardness of the relief.  Three particular examples of compositions and processes are described.  It is stated that the relief may be used in any of the ways referred to in the parent Specification, e.g. as printing surfaces, moulds, for making stereo or electro plates, decorative papers, ornamental reliefs by colouring and varnishing, paper for cheques, and for Braille work.
Patent GB-1500781-A (GB)
Title: Furniture
IPC: A47B13/02
Filed: 1976-04-15
Abstract: 1500781 Furniture underframes; tables; chairs ANTOCKS LAIRN Ltd 15 April 1976 [15 April 1975] 15431/75 Headings A4H and A4J A furniture support frame comprises a U-shaped support member 1 having the legs of the U connected by a tie bar 10 having internal threads at its opposite ends engaging oppositely threaded studs 8, 9 on the legs so that on rotation of bar 10 the upper ends of the legs can be moved towards and away from one another so that locating bars 6, 7 carried thereby can be moved into and out of engagement with grooves 6', 7' in a furniture unit 2. Two such members 1 may be mounted at opposite ends of a table top 2. Member 1 may also be used with chairs. Member 1 may comprise tubular or solid sections of steel or aluminium, or laminated wood.
Patent GB-162209-A (GB)
Title: Improvements in driving mechanism for multi-couple printing machines
IPC: B41F5/06
Filed: 1920-06-08
Abstract: 162,209. Hoe & Co., Ltd., R., (Hoe & Co., R.). June 8, 1920. Inking-apparatus; rotary machines.-In rotary machines having a number of separate printing- couples, the couples, instead of being driven directly, are driven by the associated inking- mechanisms. the arrangement preventing the drive from being impaired by the sagging of the couples. In the machine shown, the couples 1, 2 and 7, 8 are offset vertically and the inking- mechanisms, comprising inking-drums 5, 10, are arranged between the two couples. The inking- drums 5, 10 are geared to the forme-cylinders 1, 7 respectively and are geared to a vertical shaft 12 which is geared to the main driving- shaft 15.
Patent GB-682937-A (GB)
Title: An improved mounting for the die plates of draw benches or the like
IPC: B21C3/12
Filed: 1951-06-29
Abstract: 682,937. Drawing. BRITISH TUBE MILLS (AUSTRALIA) PROPRIETARY, Ltd. June 29, 1951 [July 6, 1950], No. 15533/51. Class 83 (iv) A mounting for the die plate of a draw bench or the like utilizes pneumatic pressure means operating substantially in the direction of movement of the work-piece being operated upon to hold the die in its socket. Dies 2 of a twin die bench are supported in recesses in a main frame 1 by die holding plates 3 held by pins 4 passing through a front plate 6 of the frame 1. On the back of each die holding plate is a number of pneumatic cylinders 9 whose plungers 10 engage a pressure plate 11 which engages a guide member 12 and forces it down on the die 2. Air is supplied through a stopvalve and a check-valve which prevents return flow of air. Work-piece guides 20 are disposed on the fronts of the die holding plates.
Patent GB-766679-A (GB)
Title: Improvements relating to mounting arrangements for agricultural soil-cultivating implements
IPC: A01B3/44
Filed: 1954-05-26
Abstract: 766,679. Agricultural implements. PRINTZ, E. and PRINTZ jun. E. May 26, 1954, No. 15550/54. Class 6(1). In an agricultural implement attached by parallel linkage to a coupling frame connected to a tractor by means of a vertical pivot shaft, the implement is raised and lowered by power transmitting levers which are connected to the implement so that it is freely movable both laterally and upwardly within predetermined limits. As shown in Fig. 1 levers 6, 6<SP>1</SP> are raised and lowered by a hydraulic ram 5 and are coupled to draft levers 7, 7<SP>1</SP> by latches 19, 19<SP>1</SP>. The implement consists of two plough bodies 13, 13<SP>1</SP> adjustably mounted on parallel linkages, the lower links 15, 15<SP>1</SP> of which are provided with members 16, 16<SP>1</SP> which are engaged in the slotted ends of links 8, 8<SP>1</SP> attached to the draft levers 7, 7<SP>1</SP> which allows lateral and upward movement of the plough bodies when working. When the plough body 13 is in the working position the lever 7 is connected to the lever 6 by the latch 19 which is disengaged on raising the plough 13 by striking a pin 25. The plough is held in the raised position by a hand operated latch 26. To lower the plough 13<SP>1</SP> the latch 26<SP>1</SP> is moved by hand to release the draft lever 7<SP>1</SP> and the lever 6<SP>1</SP> is lowered and is locked to the lever 7<SP>1</SP> when the catch 19<SP>1</SP> moves away from the pin 25<SP>1</SP>. In a modification (see Fig. 4) the links 8, 8<SP>1</SP> are each replaced by two telescoping members 32, 35 one of which is provided with a stop 39 which co-operates with an abutment 34 fixed on the member 35 and with a stop 36 which is in position when the plough is in the working position so that the members are free to slide within the limits of the abutment 34 and stop 36. The stop 36 is rendered inoperative when the plough is raised so that the two members are freely slidable one with the other to enable the other plough to be raised and lowered. In a further modification two lower draft links are arranged beneath the tractor rear axle and are connected by a curved member which is situated below the lower parallel links. Spring- urged pivoted latches engage under the curved member. The latches are so positioned that when the plungers are in the raised position the latches are clear of the curved member allowing the draft links to be lowered while retaining the plough in the raised position. In a further modification shown in Fig. 8 the ploughs are raised and lowered -by means of a lever 50 joined to the lower links of the parallel linkages by links 51, 52 and pivoted on a control rod 49 which is loosely engaged in the forked ends 6a, 6a<SP>1</SP> of power transmitting levers 6, 6<SP>1</SP>. In a further modification the control lever 50 is operated by a spring to raise and lower the plough bodies.
Patent GB-545462-A (GB)
Title: Improvements in television apparatus
IPC: H04N11/00
Filed: 1940-10-23
Abstract: 545,462. Polarizing apparatus. BAIRD, J. L. Oct. 23, 1940, No. 15601. [Class 97 (i)] [Also in Group XL] A transmitting or receiving apparatus for colour television comprises a Kerr cell 1 in association with a polarizing prism 2 on one side and a plurality of differently coloured light filters 3, 4 and polarizing prisms 5, 6 on the other side arranged to cover different portions of the Kerr cell, said polarizing prisms 5, 6 being polarized at different angles so that when voltages are applied to the Kerr cell to vary its polarizing angle, the light passing through the cell will pass through a corresponding colour filter and will be cut off from the other filter or filters. In a modification, separate Kerr cells are used for the separate filters. In a transmitter this apparatus is placed against the lenses of the transmitter and different voltages are applied to the Kerr cell or cells at each alternate picture to pass red and blue-green alternately. At a receiver, the apparatus is placed against a lens projecting on to a viewing screen the image formed on the screen of a cathode-ray tube 7. Specification 545,491, [Group XL], is referred to.
Patent GB-515158-A (GB)
Title: Improvements in and relating to thermionic valve amplifiers
IPC: H03F3/52
Filed: 1938-05-25
Abstract: 515,158. Valve amplifying circuits. RENDALL, A. R. A. May 25, 1938, No. 15651. [Class 40 (v)] A cathode follower valve, having coupled across its cathode circuit impedance a load of less effective impedance than the valve itself, is provided with negative feedback to reduce the effective output impedance of the valve so as to more nearly equal the impedance of the load. The cathode follower may form the output stage of a multi-stage amplifier with the feedback arranged between the load circuit and an earlier stage of the amplifier. The Figure shows an arrangement in which feedback is applied through a resistance 12 and condenser 11 to a resistance 14 in the cathode circuit of the valve 13.
Patent GB-226115-A (GB)
Title: Improvements in and relating to sanitary bins and the like
IPC: B65F1/14
Filed: 1924-06-30
Abstract: 226,115. Bainbridge, J. F. June 30, 1924. Refuse bins. - The upper edge of the inner wall D of a container for use in wall-openings is bent over as shown to prevent refuse falling between the wall D and the bin E. The wall may be extended to form a cover in which a flanged opening is formed.
Patent GB-612468-A (GB)
Title: Improvements in and relating to rotary prime movers embodying an aero-thermodynamic propulsive duct, and their fuel systems
IPC: B64C27/18
Filed: 1946-05-24
Abstract: 612,468. Fluid - pressure servomotor control systems. PULLIN, C. G., SHAPIRO, J. S., and CIERVA AUTOGIRO CO., Ltd. May 24, 1946, No. 15802. [Class 135] [Also in Groups XXVI and XXXIII] Relates to prime-movers of the type having propulsive ducts at the ends of rotating radial arms which, for example, may constitute the power plant of a helicopter. The fuel is stored in a tank 10 and the vapour is drawn off from a collecting neck 11 through a pressure-reducing valve 26 and is led to an intermediate tank 14. Thence it passes through a pipe 15, coaxial with the motor, to a gland box 42 and a radial' pipe 18 leading to the fuel jet in the propulsive duct 20. The pipe 18 is lagged to prevent condensation and baffles 49 may be provided to cause some generation of heat through turbulence. The fuel used contains at least 90 per cent of normal butane, iso-butane or propane. The pressure-reducing valve comprises a main valve 28 carried by a piston 27 the upper surface of which is subjected to a pressure determined by a variable pressurereducing valve 36. The valve 36 is carried by a piston 35 subjected to a spring 38 the loading of which is varied by turning a screw spindle 39. The spring 38 is enclosed in a sealed capsule 55 attached to the piston 35. The Provisional Specification refers to 612,189, [Group XXXIII].
Patent GB-1421900-A (GB)
Title: Mixing valves
IPC: F16K11/10
Filed: 1972-03-25
Abstract: 1421900 Valves H WATTS and D E WATTS 16 March 1973 [25 March 1972 (2)] 15814/75 and 15815/75 Divided out of 1421899 Heading F2V A mixing valve comprises laterally disposed inlets 3, 4, Fig. 16, for hot and cold water and at least one outlet 15 for the discharge of water, the inlets and outlet being connectible by a valve member 6 having sealing rings 9, 10 which are in register with the inlets and are urged into sealing engagement by inlet pressure with the interior of the valve body 1 to prevent cross flow when the valve is closed. When the valve member is moved downwardly from the position shown, a space 41 connects the inlets with the outlet while rotation of the member varies the ratio of hot to cold water flowing through the valve, the rotational movement being limited by a stop 24. Two outlets 15, 16 for a bath and a shower may be provided. The imbalance in hydraulic forces on the valve member due to a spindle 19 is insufficient to overcome the friction of the seals if the spindle diameter does not exceed 6 mm. In a further embodiment, both ends of the valve member (6, Fig. 10) are vented to atmosphere and only a central portion of the member, controlling flow to a single outlet, is subjected to water pressure so that the member is hydraulically balanced. In Figs. 19 and 20, a valve member 6 is rotated to allow hot and cold water from inlets 3, 4 to enter spaces 13,14 from which it flows through ports 35, 37 to an outlet 15, the ratio of hot to cold flows being adjusted by an independently rotatable valve member 35. In a further modification, the member (6, Fig. 12) carrying the sealing rings is rotated to vary the ratio of hot to cold flows while an independently operable axially spaced member (35) which may rotate or rotate and move axially, controls the volume of flow to the outlet. In all of the embodiments the sealing rings may be slightly compressed radially of the valve member during assembly or be outwardly biased by springs.
Patent GB-331651-A (GB)
Title: Improvements in or relating to machines for insulating electric cables
IPC: H01B13/30
Filed: 1929-05-22
Abstract: 331,651. Chernack, A. E. May 22, 1929. Coating wires.-A machine for insulating electric cables continuously in an automatic manner comprises a hot oil bath in which the moisture is expelled from the cable, a drying chamber, a coating chamber, and means for reeling the cable. In the machine shown in Figs. 1. and 2, a drum 1 of cable, already served with a covering of textile material, is supported by a carrier 3 attached to a framework 4, 5. A tank 6 carried by the framework is formed with a hollow shaft 11 on which is loosely mounted an oil-tight drum 13. Above this drum is a corrugated cylinder of wood 15. Secured to transoms 17 in the drying chamber 70 is a hollow shaft 19 on which lattice drums 21, 22 are freely mounted. Pulleys 27, 28 drive the main shaft which in turn drives a sprocket wheel 33 through worm gearing 30, 31. The wheel 33 rotates the corrugated cylinder 15 by means of a chain 34 and a sprocket wheel 32. Secured to the cylinder shaft are sheaves 37 which are connected through ropes 39 to free or fixed pulleys 36, the axles of which are adapted to drive the drums 21, 22 through pinion gearing 38, 39. When the machine is in operation, the cable 42 is fed from the drum 1 over a pulley 43 to the oil tank 6, where it passes round the cylinder 15 and drum 13 a number of times, being then fed over pulley 45 and one of the guiding sheaves 47, 48 to one of the drying drums 21, 22. When dried, the cable is passed through an aperture 55 in the drying-chamber 70 to a tank 57 where it receives coats of varnish, each coat being dried by the drying drums 65, 68 driven by a chain drive from the axle of the corrugated cylinder 15. The completed cable is coiled on a drum 72 driven by a rope from the pulley 81. Gas burners 73, inserted in the hollow axles of the drums, maintain the temperature of the oil bath 6 and the drying chamber 70, and a tube 71 passing through the coating tank permits a similar gas burner to be used for heating the coating material.
Patent GB-835795-A (GB)
Title: Improvements in or relating to the protection of ferrous metal structures against corrosion
Inventor: WAITE WILLIAM GODFREY
IPC: C23F13/02
Filed: 1957-05-20
Abstract: 835,795. Preventing corrosion. HUGHES & CO. Ltd., F. A. April 22, 1958 [May 20, 1957], No. 15027/57. Class 123(1) A sacrificial anode of, for example, magnesium alloy, has a large central mass 10 surrounding a central core 11 such as that described in Specification 831,660 by which it can be mounted. The block 10 has two pairs of tapered fins 12, 13 and 14, 15, the short fins 14, 15 having a radial length 18 which is between 40 and 60% of the radial length 19 of the long fins. In use the consumption of the long fins provides the high current for initial polarization whilst the interference effect of the short fins prevents selective attack where the long fins join the main body.