baber/WOPTO huggingface dataset:
Patent GB-707573-A (GB)
Title: Improvements in or relating to short-wave radio aerials particularly for television and short-wave reception
Inventor: DURANT ERNEST WILLIAM
IPC: H01Q19/30
Filed: 1951-05-25
Abstract: 707,573. Aerials. TELERECTION Ltd. Aug. 25, 1952 [May 25, 1951], No. 12356/51. Class 40 (7) A dipole radio aerial 13, 13a is centrally supported by a traverse support member 11 and has feeder connections comprising a pair of matching conductors 18, 18a, connected to the dipole elements at positions intermediate the ends thereof and converging to an anchorage insulator 21 on the member 11, the matching conductors and adjacent parts of the elements defining an isosceles triangle with the support member bisecting its apex angle. The down lead 22 has its conductors 23 and 23a connected at the insulator 21 to the members 18 and 18a which serve as impedance matching means between aerial and feeder. The clamping means 17 and 17a by which conductors 18 and 18a are attached to the dipole elements are preferably capable of adjustment along the elements, provision being made at the insulator 21 for the angle of the conductors to vary and for the insulator to move along member 11 so that the matching arrangement may be set up in the optimum position and then clamped. The member 11 may carry a reflector and two directors on its outer ends and be supported at the top of a mast down which lead 22 runs, Fig. 1 (not shown).
Patent GB-676864-A (GB)
Title: Improvements in or relating to temperature indicating apparatus
IPC: G01J5/28
Filed: 1948-05-05
Abstract: 676,864. Photo-electric temperature indicating systems. GALL, D. C., and KITSON, W. June 1, 1949 [May 5, 1948], No. 12398/48. Addition to 624,641. Class 40 (iii). In a temperature measuring system of the type described in the parent Specification an instrument which indicates the response of a radiant heat sensitive element modifies the response of the element to the radiant energy so as to produce a desired relationship between source temperature and meter indication. In the Figure, the output of a barrier layer type cell 1 is amplified at 5a and feeds series-connected coils 7, 13 of a pair of moving coil instruments. Coil 7 moves a coloured indicator 8 of the type described in the parent Specification to give a visual indication of the furnace colour. Coil 13 interposes an optical wedge 12 into the beam of radiant energy to reduce the photo-cell response, the construction of the wedge determining the law relating furnace temperature to indicator position. To make the indicator more quick acting, and to prevent overswing, wipers tap voltages from potentiometers 15, 16 which oppose the photocell output and are fed through further coils 7a, 13a operating under the same conditions as coils 7, 13. These coils 7a, 13a may, if desired, be used without the potentiometers. It is stated that the optical wedge 12 may be omitted and the potentiometers relied on to produce the necessary feed-back. In the embodiment of Fig. 1 (not shown), in which only the optical feed-back system is used a variable resistance type photo-cell feeds an amplifier which comprises an A.C. fed thyratron. Alternatively the amplifier circuit of Specification 585,419 or a magnetic amplifier may be used. In the embodiment of Fig. 3 (not shown) a single movement fulfils the dual function of temperature indicator and feed-back means, this movement carrying both a graduated screen to reduce the radiant energy reaching a bolometer and a pointer.
Patent GB-621843-A (GB)
Title: Improvements in and relating to ignition coils
IPC: H01F38/12
Filed: 1945-05-17
Abstract: 621,843. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd., and GRIFFITHS, L. May 17, 1945, No. 12406. [Class 38 (ii)] An ignition coil comprises a core 1 of iron wires with ends inserted in circular recesses in moulded coil ends 3, 4, the assembly being taped at 8 and dipped in a synthetic resin varnish, to form a spool on which the primary and secondary windings 10, 9 are wound. A bolt 2 which screws at one end into a metal insert 5 in end 3, is located at the centre of the core and forms the high-tension terminal. Nuts 6, 7 screwed on the other end hold the assembly together, and nut 11 forms the terminal connection. The windings are enclosed in a steel tube 17 held between a gland washer 19 in end 4, and a swaged over insert 13 in end 3, which tube carries a fixing bracket 18. The outer end of the secondary winding 9 is soldered to the insert 13, and the ends of the primary winding 10 are connected to terminals 14 in end 4.
Patent GB-591993-A (GB)
Title: Improvements in protected metal sheets for building purposes
IPC: E04B1/94
Filed: 1944-06-30
Abstract: <PICT:0591993/III/1> In a building sheet consisting of a metal sheet 10 provided on one or both surfaces with a layered coating consisting of a fibrous layer 12 affixed to the metal sheet by an interposed adhesive layer 14 and an outer bituminous coating 18, the outer bituminous coating is rendered flame-retardant by having incorporated therein soaps of manganese, iron, zinc, chromium, cobalt, aluminium, magnesium, and barium in an amount not exceeding 15 per cent. of the bituminous composition.  The fibrous layer 12 may be impregnated with a bituminous composition and the adhesive 14 may be bituminous; either or both of these bituminous compositions may contain a metal soap as specified.  Alternatively, the adhesive 14 may be metallic. Waxes and resins may be added to the bituminous compositions. Specifications 391,936 and 467,142, [both in Group VIII], are referred to.
Patent GB-1069063-A (GB)
Title: Screens or conveyors incorporating cleaning members
IPC: B07B1/52
Filed: 1965-03-24
Abstract: 1,069,063. Vibrating screens. DANO INGENIORFORRETNING OG MASKINFABRIK INGENIOR KAJ PETERSENS FOND. March 24, 1965 [March 25, 1964], No. 12549/65. Heading B2H. [Also in Division B8] A device for cleaning a vibrating screen comprises at least one cleaning member 2 in the form of an elongate, flexible, tail-like body which is attached by one of its ends to driving means for imparting forced reciprocating movement to the member in a direction transverse to the longitudinal axis of the body. As shown, a chain 11 connected to articulated shield members 10 is mounted on the surface of a screen 1 and moved across the screen by a screwthreaded member 8 operating on a motordriven leadscrew. In Fig. 3 (not shown), the cleaning member is moved across the screen by a pulley and chain arrangement driven by a motor (9) and in Fig. 8 (not shown), the cleaning member is also reciprocated in the direction of travel (3) of the material being screened. If desired, the chain 11 may be used without the shield members 10 and in other embodiments, Figs. 6 and 7 (not shown), the cleaning member is formed of a flexible material such as rubber or nylon and is generally triangular in cross-section; metal strips (16) or brushes (17) may be secured to the bottom surface.
Patent GB-403283-A (GB)
Title: Improvements in or relating to television apparatus, synchronising apparatus and thelike
IPC: H03K4/26
Filed: 1933-05-01
Abstract: 403,283. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Tolson, W. A. ; 631, Jefferson Avenue, Erlton, New Jersey, U.S.A.) May 1, 1933, No. 12639. Convention date, April 30, 1932. [Classes 40 (iii) and 40 (v).] A saw-tooth current 40 for deflecting a cathode ray 15 is generated by a back-coupled thermionic blocking oscillator 20 with a shaping circuit 34 in its output circuit to produce a voltage wave 39, which has a saw-tooth component and a component of short impulses separated by relatively long intervals and is applied to a single amplification stage 38. The valve 20 produces periodic current impulses by back-coupling through a transformer 21. Grid-current, flowing during the impulse, accumulates on a grid condenser 22 to prevent another impulse until the charge has leaked away through a high resistance 24. The values of the grid leak and condenser are such that the impulses are generated at the line-scanning frequency, the impulses being synchronised by positive signals applied to the valve through a filter 32. A condenser 35 and a resistance 37 are connected in the output circuit of the valve, and the voltage wave developed across this network 34 has the form 39. This voltage, applied to the grid of the valve 38, gives rise to the saw-tooth current 40, which passes through deflecting-coils 17 of a cathode-ray tube 10. A saw-tooth current of the picture frequency is generated by a similar circuit 30a, and passed through deflecting coils 18 to give the other component of scanning. According to modifications : the resistance 36 is connected across the condenser 35, Fig. 2 (not shown) ; a screen-grid valve is used as the generator, Fig. 3 (not shown) ; negative synchronising impulses are used, Fig. 4 (not shown). Specifications 395,499 and 402,629 are referred to.
Patent GB-1454302-A (GB)
Title: Cellular plastics
IPC: C08J9/06
Filed: 1973-03-16
Abstract: 1454302 Recovering polymers from cellular polymers RUBBER & PLASTICS RESEARCH ASSOCIATION OF GREAT BRITAIN 15 March 1974 [16 March 1973] 12706/73 Heading C3P Non-cellular polymers of ethylenically unsaturated monomers are made by contacting the cellular polymer with the vapour of a refluxing solvent whereby the vapour condenses on the cellular polymer, dissolves a portion thereof and the resultant solution returns to the liquid phase of the refluxing solvent. In the drawing, styrene (A) is heated in a Z blade mixer (B) with steam to produce vapour which rises up the feed shoot (C) to dissolve cellular polystyrene which is introduced via hatch (F) and forced down (C) by a ram (E) below the condenser coil (D). The solvent is boiled off to leave a concentrated polystyrene solution which may be granulated or comminuted, or if the styrene contains a peroxide the solution may be polymerized. Cellular polymethylmethacryl or polyvinylchloride may be dissolved in an acrylic monomer.
Patent GB-353899-A (GB)
Title: Means for regulating working quantities
Filed: 1930-04-25
Abstract: 353,899. Regulating air supply to furnaces. SIEMENS & HALSKE AKT.- GES., Siemensstadt, Berlin. April 25, 1930, No. 12823. Convention date, April 27, 1929. [Class 51 (i).] In means for regulating working values, such as the quantity of air relative to the fuel supplied to a furnace, measuring apparatus is employed and an intermittent current is produced the frequency of which is proportional to the value of the quantity to be regulated, and these frequencies are transmitted to a rotating arm, the movement of which is compared with another, comparison member. Fig. 1 shows the apparatus applied to regulating the output of a generator, 25 being the power lines to which is connected a watt-hour meter 26 driving a commutator 27 supplying current to a Z-armature 31 geared by worm and worm wheel to an intermediate arm 34. A direct current meter 44 is driven from a source of supply 29 and its speed is maintained constant by a brake 47. This meter is similarly coupled to a comparison arm 38, which is forked and carries contacts 35, 36 between which a contact on the arm 34 is positioned.. When the arms get out of phase, current in one direction or the other is supplied to a reversible motor 15 operating a throttle valve 2 on the prime mover. The intermediate member may comprise a number of spring arms which, when contact is made, cuts out resistances in the motor circuit.
Patent GB-567690-A (GB)
Title: Improvements in and relating to electric battery lamps
IPC: F21L4/00
Filed: 1943-08-09
Abstract: 567,690. Battery lamps. CONCORDIA ELECTRIC SAFETY LAMP CO., Ltd., and BLEACH, C. C. Ang. 9, 1943, No. 12848. [Class 39 (ii)] In a battery lamp of the kind described in Specification 499,967, the bulb holder 12 and reflector 13 are housed in a compartment II distinct from, but mounted on, the container 1 for the battery or accumulator 38, and connection between the bulb holder and battery is effected by insulated pins 34, 35 passing through the walls of the compartment 11 and container I and engaging spring contacts 43 carried by the battery. By this construction, fumes from the battery are prevented from reaching the bulb compartment. The bulb holder is carried by an insulating disc 19 having grooves in its outer face to receive contact plates 20, 21 which connect with the pins 34, 35. Plate 20 has an extension 22 for engaging the central contact of the bulb, whilst plate 21 is formed with an ear 26 adapted to be moved into contact with the wall of the bulb holder by screw 31 constituting a switch and having insulating material 33 interposed between its end and the ear 28. Tungsten or like anti-corrosive contact points 27, 28 may be provided on the bulb holder and ear, and non-corrodible of the lamp. An adjustable handle 8 may be provided on the lid 3 of the battery container, the lid being hinged to the rear of the container and fastened at the front by a hasp 6 and ring 7. Alternatively, a fixed handle may be provided on a lid. which hinges to the side of the battery container.
Patent GB-626010-A (GB)
Title: New or improved cramp for use in assembling or stripping laminated springs
IPC: B25B27/30
Filed: 1947-05-13
Abstract: 626,010. Clamps. RUDMAN, R. R. May 13,1947, No. 12868. [Class 61(ii)] A clamp for assembling or stripping laminated springs  comprises a pair of U - shaped spring- supporting brackets 1 pivoted to a bridge plate 2 and an arched member 12 universally jointed at 13 to a shaft 10 which has square-threaded engagement with a sleeve 9 at the centre of the bridge plate. The bolts 3 engaging corresponding threaded holes in the bridge plate 2, are provided at each end with tapered bosses for engagement in countersunk recesses 6 formed along the slots 5 in each arm of the brackets 1. The leaves of the laminated spring 8 placed in the brackets and assembled on the centre bolt 21, are compressed by screwing down the arched member 12 to allow the nut 22 to be screwed to the bolt.
Patent GB-965206-A (GB)
Title: A new or improved method of, and apparatus for extracting kernels from nuts
IPC: A23N5/00
Filed: 1959-04-16
Abstract: 965,206. Refrigerating. E. C. WYATT. July 18, 1960 [April 16, 1959], No. 12894/59. Heading F4H. [Also in Divisions A2 and B8] A method of extracting the kernels from the shells of cashew or like nuts comprises feeding the nuts through or along a receptacle, cooling the receptacle with a liquid refrigerant, such as liquid nitrogen or oxygen, contained in a vessel disposed externally of and/or encircling the receptacle so as to freeze the oil contents of the shells rapidly as the nuts pass through or along the receptacle to mechanism adapted to shatter the shells mechanically without crushing or otherwise damaging the kernels. As shown, nuts are fed to a hopper 1 from which they are discharged to a conveyer 13 at a rate controlled by an adjustable damper 3. The hopper is surrounded by a closed vessel 2 containing the liquid refrigerant. Alternatively the refrigerant receiving vessel may surround the conveyer. In a modification the vessel may be disposed below a downwardly inclined shoot reaching from the hopper discharge end to the conveyer system. In a further modification the hopper may be omitted and the nuts fed at a controlled rate direct to the shoot. The smallest nuts pass between rollers 14, the larger nuts gravitating along an inclined system of rollers and depending upon their dimensions, are drawn through passes between pairs of rollers 14a, 14b or 14c to shatter the shells. Alternatively the conveyer may reach into a receptacle having rigid walls containing a spinning disc so designed that it flings the nuts against the walls and shatters the nut shells. Specification 517,433 is referred to.
Patent GB-528254-A (GB)
Title: Improvements in and relating to steam or like turbines
IPC: F22B37/32
Filed: 1939-05-01
Abstract: 528,254. Steam turbines. BRITISH THOMSON-HOUSTON CO., Ltd. (Shibaura Engineering Works, Ltd.). May 1, 1139, No. 13019. Drawings to Specification. [Class 110 (iii)] Water of condensation is separated out in an interstage pipe connection by means of a helical vane located in the pipe. A lateral scoop outlet is provided in the pipe.
Patent GB-1178643-A (GB)
Title: Method of Drilling Holes in Bedrock Covered with Topsoil or Loose Rock
IPC: E21B17/18
Filed: 1968-03-18
Abstract: 1,178,643. Boring earth. GEBR. BOHLER & CO. A.G. 18 March, 1968 [17 March, 1967], No. 13059/68. Heading E1F. A device for drilling into bedrock covered with top soil or loose rock, comprises a headpiece 3 to which may be attached a casing comprising pipes 5 and connecting sleeves 4, and/or a boring bar comprising bars 10 and connecting sleeves 11, with a rotary percussion bit 6 on the casing, and a percussion bit 12 on the boring bar, flushing fluid being fed in through a central duct 2, 9, and discharged through aperture 7 in the headpiece. In operation, the casing is increased by one pipe length and attached to the headpiece, and advanced correspondingly. The boring bar is then increased in length and attached to the headpiece, and used to drill out material within the casing. This is repeated until bedrock is reached, when boring continues with the boring bar alone. Alternatively, bits 6 and 12 may be used to drill simultaneously, suitable clearance being provided between them for flow of flushing fluid.
Patent GB-691675-A (GB)
Title: Apparatus for forming aerosols
IPC: B05B3/10
Filed: 1949-05-17
Abstract: 691,675. Treating gases with liquids. FOA, M. May 17, 1949 [June 3, 1948; Jan. 29, 1949]. Nos. 13074/49 and 13075/49. Class 55(ii) Apparatus producing aerosols i.e. suspensions of liquid particles in gas has a stationary downwardly tapering frusto-conical bowl 2 with internal fins 3 at the base. and a rotor 14 shaped substantially as a disc has a downward conical extension with a central axial channel 15 dipping into liquid in the base of the bowl, whereby liquid is drawn up by the rotor and projected centrifugally through radial channels 16 in the disc 14 against the inner wall of a stationary cylinder 8 surrounding.the upper part of the rotor. Air drawn through an inlet 21 by a fan 13 passes down through the cylinder whence the aerosol passes under the edge of the cylinder and rises between the cylinder and the bowl to pass through an annular screen or filter cloth 6 to outlets 22. The lower part of the cylinder 8 may be slotted or perforated at 19, or the cylinder 8 may comprise inclined wall members. An electric motor 10 driving the fan and rotor is mounted on a casing with a flange 9 which is locked by a threaded ring 12 with an elastic gasket 4 against the flange of an outer casing 1. The Specification as open to inspection under Sect. 91, comprises also a construction as above in which the fan and the cylinder 8 is omitted. Alternatively air is passed through a chamber in which liquid is fed by a pump on to a horizontal rotated disc carrying on its upper side concentric vertical annular perforated walls which break up the liquid. Another apparatus comprises a casing through which air is passed containing a horizontal hollow cylinder with a closed end and a further perforated hollow cylinder within the first cylinder, water being pumped into the inner cylinder, both cylinders being perforated to disperse the liquid. In another form, perforated concentric cylindrical walls are mounted on vertical circular discs rotated in opposite directions on shafts at opposite sides of the casing, the walls on each disc extending between the walls on the other disc. and water is pumped through one shaft into the innermost cylinder. In another form, a casing contains a motor and a water-circulating pump on a horizontal shaft carrying two fans both drawing air from a central spraying device on the shaft. A central disc on the shaft has perforated conical outwardly converging flanges on to which liquid is sprayed from tubular perforated. rings adjacent the shaft, water being thrown from the flanges on to a stationary perforated or slotted annular wall, through which air is drawn inwardly from an inlet at the top of the casing. The moistened air is drawn by the fans through the spray and passes through frusto conical guides and through slotted baffles to an outlet at the side of the casing, excess liquid returning for recirculation to the bottom of the casing. This subject-matter does not appear in the Specification as accepted.
Patent GB-350160-A (GB)
Title: Improvements in devices for the operation of the air inlet choke flap of carburettors
IPC: F02M1/00
Filed: 1930-04-28
Abstract: 350,160. Spray carburetters; turning gear. HERZFELD, A., 33, Treustrasse, and ERLENHORST, O. REICHEL-, 40, Margaretenstrasse, both in Vienna. April 28, 1930, No. 13085. Convention date, April 30, 1929. [Classes 7 (iii) and 7 (v).] A flap 4 pivoted at 3 and adapted to choke the air inlet 2 of a carburetter, is normally held open by a spring 5, and is moved into the choking position by the same energy as that which actuates the engine starter. As shown, the flap is actuated by the armature 7 of a solenoid, the winding 9, 10 of which is connected to the electric starter circuit and is energized by pressing the starter button. The same result may be obtained in connection with a compressed-air starter by means of a small cylinder attached to the compressed-air pipe.
Patent GB-222797-A (GB)
Title: Improvements in carbureters
IPC: F02M1/00
Filed: 1923-07-24
Abstract: 222,797. Juhasz, J. July 24, 1923. Spray carburettors. - The carburettor comprises several - carburetting chambers all controlled by a common throttle valve and each chamber has a separate nozzle the bore of which increases towards its outlet end and communicates through orifices at different levels with a surrounding tube the fuel level in which falls as the suction increases to admit more air through the orifices. The carburetting chambers 3 - 6 are controlled by the throttle valve 10, receive air from an inlet 2 and each contains a nozzle 7. The nozzle comprises a central flanged tube 11, Fig. 3, the bore of which decreases downwardly step-by-step, each step communicating through an orifice 21 with the space formed by a surrounding tube 14. A cap 15 screwed to the tube 11 extends downwardly over a substantial part of the tube 14. The nozzles are held in place by plugs 20 and gaskets 17, and the inlets to those in the chambers 3, 6 are controlled by needle valves 9. The orifices 21, Fig. 4, are at different heights in the several nozzles and the combined effect of the steps in the bores is that of a single nozzle 25, Fig. 4, of conical bore the active section of which decreases as the suction increases. At starting, the tube 14 is full of fuel and the orifices 21 are closed. but as the suction increases the fuel level falls, uncovering the orifices 21 and admitting air to tube 11 from the mouth of the cap 15. Only one of the carburetting chambers is in action at low speeds.
Patent GB-276422-A (GB)
Title: Improvements in and relating to railway rail joints
IPC: E01B5/16
Filed: 1926-05-25
Abstract: 276,422. Fearn, W. H. May 25, 1926. Portable railways ; rail joints ; tie-bar.-Inner fish plates c, d are formed integral with or are rigidly secured to tie-bars b, Simple outer fish plates e and the inner fish plates are secured together by bolts which pass through the rail webs.