baber/WOPTO huggingface dataset:
Patent GB-773228-A (GB)
Title: Improvements in and relating to a wireless receiver set
IPC: H04B1/26
Filed: 1954-10-13
Abstract: 773,228. Radio receiving apparatus. SAUTIER & JAEGER. Oct. 13, 1954 [Jan. 26. 1954], No. 29476/54. Class 40(5) A radio receiver capable of receiving low, medium and high-frequency A.M. sound transmissions, very-high frequency F.M. sound transmissions, and television transmissions in two separate bands comprises a radio-frequency stage which is followed by a mixer stage comprising a double-pentode or double-triode valve M, the cathodes and corresponding grids of which are connected in parallel, the television intermediate frequency being taken from one anode 25 of the double valve M and the sound intermediate frequency from the other anode 19, the anode circuit associated with the anode 19 comprising 'two tuned transformers having their primaries and secondaries arranged respectively in series and tuned to different intermediate frequencies corresponding rspectively to the low, medium and highfrequency sound transmission and to the very-high-frequency sound transmissions. 'The image-reproducing portions of the receiver are separate from the remainder of the set and the I.F. developed at anode, 25 is transmitted by a transmission line 28 to the image-reproducing portions of the receiver. A switch 24 operable with the wave-change knob of the receiver shortcircuits one or other of the primaries of the I.F. transformers according as to which waveband is being received. The radio-frequency stages of the receiver comprises a grounded-grid amplifier followed by either a triode grounded-cathode amplifier or a cascade. Fig. 15 (not shown); when however low, medium and high-frequency transmissions are being received the grounded-grid amplifier is bypassed. The local oscillator comprises a double triode TD connected either as shown or as a Colpitts oscillator, Fig. 10 (not shown) followed by a buffer amplifier, and it is stated that the combination serves also as a ' frequency-doubling arrangement. The I.F. amplifier, Fig. 12 (not shown) comprises a pentode valve followed by a double-diode pentode the output of the first pentode being rectified by one diode and applied to the control grid of the second pentode to provide forward-acting automatic gain control. The frequency-discriminator which may be connected to the output stages alternatively with a conventional diode detector comprises a nonode to the third and fifth grids of which the outputs from the secondary and primary of the final I.F. transformer are connected.
Patent GB-850880-A (GB)
Title: Process and apparatus for the continuous production of pitch
IPC: C10C1/19
Filed: 1958-09-16
Abstract: 850,880. Pitch. GELSENKIRCHENER BERGWERKS A.G. Sept. 16, 1958 [Oct. 16 1957], No. 29613/58. Class 55 (2). A continuous process for the production of pitches, which preferably contain a greater content of pyridine-soluble resins than of anthracene oil-insoluble constituents, from such bituminous materials as mineral oils, coal tar or brown coal tar and their fractions or distillation residues, soft pitch, or briquette pitchcomprises passing the material through a tower filled with such packing as Raschig rings or ceramic or metallic spheres to form a thin flowing film on the packing, and treating the flowing bituminous material with at least the same weight of such gases or vapours as air or other oxygen-containing gas, water vapour, smoke, inert gases, nitrogen oxides, sulphur dioxide, and ammonia or compatible mixtures thereof, for not more than 30 minutes at 150-325‹ C. As shown, a suitable apparatus comprises tower 1 which is filled with packing and provided with heating elements (not shown) and has gas inlet 3 and outlet 4. Bituminous material enters through conduit 5 and distributer 6 and meets gas entering through 3 in counterflow. Used gas flows through heat exchanger 7 where gas entering at 8 is heated before passing to inlet 3. Cooled gas together with any condensate leaves through 9. The base of reaction vessel 2 is provided with heated receiver 10 and exit pipe 11 for the pitch. German Specifications 305,105 and 966,054 are referred to.
Patent GB-1442925-A (GB)
Title: Triamcinolone derivative
IPC: A61D7/00
Filed: 1974-07-04
Abstract: 1442925 Triamcinolone derivative AMERICAN CYANAMID CO 4 July 1974 [17 Aug 1973] 29748/74 Heading C2U [Also in Division A5] The invention comprises the 16,17-cyclic acetal with cyclopentanone of triamcinolone 21- acetate, and its preparation from triamcinolone by acetalization and acetylation. Anti-inflammatory topical compositions comprise the inventive compound and a carrier.
Patent GB-602138-A (GB)
Title: Improvements in or relating to precast building units
IPC: E04G21/14
Filed: 1945-11-08
Abstract: 602,138. Load-engaging devices. MALTHOUSE, E. G. Nov. 8, 1945, No. 29786. [Class 78 (iv)] [Also in Group X] To facilitate handling, building units are provided with removable protruding bolts 11, 12 engaged with deeply embedded nuts 13. The end of the bolt may be screwed as at 16 to receive a lifting shackle or formed as an eye as at 17. The stem of the bolt may be surrounded by a metal sleeve and its inner end may extend beyond the nut. In a modification, the outer ends of the bolts extend into recesses in the sides of the unit.
Patent GB-336406-A (GB)
Title: Improvements in or relating to auxiliary spring supports for mattresses and the like
IPC: A47C23/053
Filed: 1929-10-02
Abstract: 336,406. Ner-Sag, Ltd., and Wood, A. W. Oct. 2, 1929. Spring surfaces.-The longitudinal and transverse bars b, c of the underframe of an auxiliary mattress support of the kind shown are connected by braces f having integral divergent limbs. The parts off the underframe are preferably detachably connected in known manner and the braces are also detachably secured in slots g, i in the frame bars.
Patent GB-1383546-A (GB)
Title: Article of furniture and method of forming same
IPC: B27M3/18
Filed: 1972-06-26
Abstract: 1383546 Furniture frames RESEARCH CORP 26 June 1972 [27 Oct 1971] 29833/72 Heading A4H A frame for a chair, table, footrest or ottoman includes a component which comprises inner and outer nested strips 40, 50 of wood, metal or plastics material spaced apart by spacers 48 secured to the two strips.
Patent GB-646043-A (GB)
Title: Improvements in or relating to gauging tools
Inventor: CROOK WILLIAM CHARLES HERBERT
IPC: G01B3/46
Filed: 1947-11-10
Abstract: 646,043. Profile gauges. NAPIER & SON, Ltd., D. Nov. 10, 1947, No. 29875. [Class 106 (ii)] The size and profile of a straight groove B of uniform cross-section is gauged by inserting side by side two members C, D having outer side faces C<SP>2</SP>, D<SP>2</SP> shaped to conform to the opposite sides of the groove adjacent truly flat engaging inner side faces C<SP>1</SP>, D<SP>1</SP> which can slide over one another and lie at a small angle to the longitudinal axis of the groove, and outer exposed faces C<SP>3</SP>, D<SP>3</SP> which lie in planes at right angles to the faces C<SP>1</SP> D<SP>1</SP>. These planes will be coincident if the contours of the two sides of the groove are correctly positioned relatively to one another. As shown, the size of blade-receiving grooves in a turbine rotor A is indicated by the relative position of letters on the faces C3, D<SP>3</SP>. Errors in the position of the grooves in the rotor may also be determined. Specification 646,044 is referred to. According to the Provisional Specification, the gauging members may be kept in contact by spring means and may be connected by a screw-threaded adjusting member having a vernier indicator associated with it.
Patent GB-353328-A (GB)
Title: Improvements in or relating to dial indicators
IPC: G04B19/04
Filed: 1930-10-06
Abstract: 353,328. Clocks. MINASSIANTZ, R. MELIK-, 11, Rue La Fayette, Paris. Oct. 6, 1930, No. 29883. Convention date, Oct. 9, 1929. [Class 139.] A clock in which the hands or pointers move relatively to a graduated dial has the dial arranged in front of the pointers so as to form a mask which is pierced by a number of circular or sector-shaped slots through which the ends of the pointers are visible, the said ends being conspicuously shaped or coloured. As shown in Figs. 1 and 2, the dial 1 has the hour figures engraved thereon and is provided with a plurality of annular slots 2 through which the minute graduations on a disc 13 are visible. The central spindle of the clock carries a disc 7 which forms with the inner edge 5 of the dial a second annular slot 6. The ends of the clock hands are exposed through the slots 2. and 6 and are rendered conspicuous.by mountings 12, 12<1> of any material and any colour. In order to conceal the minute hand where it crosses the slot 6 a disc 14 is arranged between the hands to cover the slot. The hands may be replaced by complete discs on which visible pointers are marked.
Patent GB-478759-A (GB)
Title: Improved hardened vitreous articles
IPC: B32B17/10
Filed: 1936-11-03
Abstract: 478,759. Compound glass. TENNANT, W. J. (American Optical Co.) Nov. 3, 1936, No. 29914. [Class 140] A composite safety glass or like article, e.g. an ophthalmic lens or motor-car windscreen, comprises a layer of non - brittle bonding material faced on both sides with adherent layers of vitreous material, one of the layers being relatively thick, and hardened to resist impact, and the other layer being unhardened, substantially strain free, and sufficiently thin to eliminate substantially all danger of surface splinters becoming detached. Both layers have a finished surface on the exposed face. In examples : (1) a motor-car windscreen has a hardened layer of plate glass three-sixteenths of an inch thick, and an unhardened layer of plate glass one-sixteenth of an inch thick ; (2) an ophthalmic lens has a hardened layer of optical crown glass of two-millimeters minimum thickness and a strain-free layer of optical crown glass of one-millimeter maximum thickness. As shown, the meniscus-shaped ophthalmic lens has the hardened thick layer 1, which in use faces forwards away from the eye, formed with a finished convex surface 6 on the exposed face. The non-brittle bonding layer may be formed of cellulose nitrate or acetate composition, polymerized vinyl compound, polymerized styrene, acrylic acid or acrylic acid esters or the like, plasticized with chlorinated diphenyl, diethyl phthalate or the like. Specification 396,313 is referred to.
Patent GB-373052-A (GB)
Title: Improvements in devices emitting intermittent light signals
IPC: G02B26/04
Filed: 1931-10-29
Abstract: 373,052. Signal lamps. ZEISS, C., [Firm of], Carl-Zeiss-Strasse, Jena, Germany. Oct. 29, 1931, No. 29939. Convention date, Nov. 6, 1930. [Classes 75 (ii) and 75 (iv).] Lantern n shutters ; reflectors.-A lamp foi emitting intermittent light signals is provided with a spare light source d which may be switched on by hand or automatically if the principal light source a fails. The signals are obtained by interrupting the light from the source a and lens b by means of a rotating toothed disc c which is inclined at 45‹ to the beam of light A On the side away from the source a the teeth c<1> have a reflecting surface, so that the light from the source d and lens e is reflected therefrom into the same direction as the beam A.
Patent GB-876924-A (GB)
Title: Improvements in or relating to the production of shaped carbon bodies
Inventor: PRICE MICHAEL STUART THOMAS
IPC: C04B35/532
Filed: 1957-09-24
Abstract: A carbon article having a density greater than 1.69 gm/cc is produced by baking a shaped mixture of powdered carbon or graphite and a carbonisable binder, e.g. pitch under a constant pneumatic pressure of at least 100 p.s.i.g., e.g. 180 p.s.i.g.  The maximum baking temperature is preferably 800-1000 DEG C. and the rate of heating is preferably not more than 6 DEG C. per hour.  The article may be subsequently graphitised, e.g. at 2000-3000 DEG C., optionally after an intermediate impregnation with pitch, to produce a density of at least 1.75 gm/cc.  A mild steel container loaded with billets packed in coke powder may be heated in a pressurised furnace.  Two examples are given.  Specifications 742,521 and 759,160 are referred to.
Patent GB-647053-A (GB)
Title: Improvements in gas- or oil-fired tunnel kilns
IPC: F27B9/36
Filed: 1946-10-08
Abstract: 647,053. Tunnel kilns. MOORE, B. J. Oct. 8, 1946, No. 29982. [Class 51(ii)] In a gas or oil fired tunnel kiln, one or more burner tubes 22 project upwardly into refractory floor blocks 20 in each of several recesses or combustion chambers 19 disposed on either side of a central passage 14, said chambers being provided with a baffle 27 to direct heat to the lowest part of the load. Combustion products are exhausted via a longitudinal flue 26 parallel to which run recuperator ducts 29 mounted on rollers 33 and carrying combustion air to branch pipes 32 communicating with each burner tube. A preheating zone for the ware trucks 16 is provided with electric heating elements disposed on either side of the passsage 14. Specification 647.120 is referred to.
Patent GB-1405989-A (GB)
Title: Method and circuit for perforating the method of controlling the  tool feed in spark erosion machines
IPC: B23H7/18
Filed: 1973-06-25
Abstract: 1405989 Automatic control of electric discharge machining AEG-ELOTHERM GmbH 25 June 1973 [29 June 1972] 30073/73 Heading G3R A control system for a spark erosion machine automatically adjusts the tool feed to keep the pulse effect ratio constant at a pre-set reference level. The pulse effect ratio is defined as the ratio of the duration of erosive action to the total duration of the applied pulse. In the embodiment shown, pulses are produced by generator 1 and applied to the working gap between electrode 2 and workpiece 3 to provide a working pulse shape consisting of an ignition period (high voltage) followed by an erosion period (low voltage). A detector 5 comprising voltage comparators provides an output at 10 when working pulses are detected and an output at 18 when short or opencircuit conditions apply. Signal generator 6 provides an output which is proportional to the duration of the total pulse length within the cycle of pulses and feeds amplifier 9 whose output comprises voltage pulses which after passing through circuit 12 have an amplitude Vi proportional to the pulse effect ratio. This voltage is compared with the reference voltage Vs to produce an error signal Vr which is used to control the tool feed mechanism 17. When short or open circuits occur the voltage on line 19 is used to provide a control signal causing mechanism 17 to move the tool such that working conditions are restored.
Patent GB-1327498-A (GB)
Title: Electrical heating envelopes
IPC: B01L7/00
Filed: 1971-06-28
Abstract: 1327498 Electrically heated mantles LE MATERIEL SCIENTIFIQUE MODERNE 28 June 1971 [1 July 1970] 30110/71 Heading H5H A mantle 1, for heating flasks, reactors, funnels, feeding bottles, basins, &c., is provided with a non-magnetic sheet metal member 3 or a metal block 3. Fig. 2 (not shown), interposed between the insulated heating resistors 5 and the recipient of the heat (not shown). An insulating fabric 7 of asbestos prevents the hot metal 3 from touching the heated recipient, e.g. a glass flask. The resistors 5 are sewn into an asbestos sheet 6 or cast in the metal block, Fig. 2 (not shown). The block includes a refrigeration circuit also. Temperature regulation is provided, e.g. by a thermocouple 9, Fig. 2, (not shown). The mantle insulation 2 is glass wool. The metal block and insulating fabric assembly may be obtained by pulverizing the metal on a bed of fabric and embedding the resistors therein during the pulverization.
Patent GB-396370-A (GB)
Title: An improved process for producing shaped articles
IPC: C08L29/14
Filed: 1931-10-30
Abstract: Moulded articles are produced from the condensation products of polyvinyl alcohols and aldehydes, e.g. the condensation product obtained from polyvinyl alcohol and formaldehyde by means of sulphuric acid, by subjecting the condensation products to the simultaneous action of heat and pressure e.g. by injection moulding.ALSO:Moulded articles are produced from the condensation products of polyvinyl alcohols and aldehydes, e.g. the condensation product obtained from polyvinyl alcohol and formaldehyde by means of sulphuric acid, by subjecting the condensation products to the simultaneous action of heat and pressure, e.g. by injection moulding. High-boiling solvents or plastifying agents, e.g. tricresyl phosphate, fillers such as sawdust, asbestos, slate powder, talcum, and organic and inorganic pigments may be added to the condensation products.
Patent GB-400419-A (GB)
Title: Hydro-mechanically operated metal pipe or tube extrusion press
IPC: B21C23/21
Filed: 1932-10-31
Abstract: 400,419. Squirting. CHATWIN, J., 253, Gray's Inn Road, London.-(Schuler Akt.-Ges., L. ; G÷ppingen, Wurtemberg, Germany.) Oct. 31, 1932, No. 30503. [Class 83 (iv).] An extrusion press for tubes comprises an inner crank - actuated ram 1 carrying the piercing mandrel 14, and an outer ram suspended thereon by a flange 20 and forming a chamber 3 beneath the ram 1 containing a liquid which may flow from the chamber 3 to a reservoir chamber 10 through passages 21, 7, a valve 8 held seated by a spring 23, and a passage 9, or in the reverse direction through a valve 17. Upon the down-stroke of the crank, the rams 1, 5 continue to move together after the plunger 4 has contacted with the billet, causing the billet to fill the container 27. When the pressure overcomes the resistance of the spring 23, liquid escapes from the chamber 3 into the chamber 10 while the billet is pierced by the mandrel 14, and is subjected to the constant pressure of the plunger 4. After piercing, the ram 1 engages the ram 5 which is then moved positively to extrude the billet through the die 28. An extension 13 of the mandrel-carrier, which is displaceable in the ram 1, is engaged by a projection 12 at the end of the stroke of the crank to cause a tool 25 on the mandrel to sever the residue.
Patent GB-383054-A (GB)
Title: Improvements in or relating to apparatus for the storing of coins
IPC: G07F9/00
Filed: 1931-11-04
Abstract: 383,054. Coin-freed apparatus; tills. A. E. G-FAHRKARTENDRUCKER GES., Hennigsdorf, Osthavelland, Germany. Nov. 4, 1931, No. 30600. Convention date, June 3. [Classes 27 and 116.] In apparatus for displaying a coin 2, inserted in a shoot 1, the shoot outlet 3 is normally closed by the upper of two planes 4, 6 inclined to different extents in the same direction and connected by a bridge 5, pivoted at 7. The entering coin tilts the device and rolls down the plane 4 to the plane 6, whilst one, 9, of a number of coins previously arranged on the latter becomes held between the edge 12 thereof and a wall 10, from which position the coin is released when the parts return to their normal position. Stops 8, 13, 14 are provided.
Patent GB-520420-A (GB)
Title: Device for heating the cooling water of vehicle engines
IPC: F02N19/10
Filed: 1938-10-22
Abstract: 520,420. Controlling liquid - fuel burners. GRABER, J. C. Oct. 22, 1938, No. 30625. Convention date, Oct. 23, 1937. [Classes 75 (i) and 75 (iii)] [Also in Groups XIII and XXXV] In a heating apparatus for the cooling water of motor-vehicle engines a time-switch completes the circuit to the burner fuel supply pump and subsequently breaks the circuits of the burner preheating and ignition resistances. Fig. 1 shows a heating apparatus 1 connected by pipes 2, 3 to conduits V<SP>1</SP>, V<SP>2</SP> connecting the engine M and radiator K of a motor-vehicle. When a thermostat 5 in the lower conduit closes, a relay 11, Fig. 2, operates a switch 11a to complete the circuit from a battery B to an electric motor 10 through the contacts I, III of an interrupter 9. The electric motor rotates the interrupter 9 at half the speed of a time-switch arm 8d which is moved into contact with segments 8a, 8c to complete the circuit to a burner - preheating resistance 6 and an igniting resistance 7. After about two minutes the arm 8d bridges the gap between the segment 8a and a segment 8b and completes the circuit to a pump 4 which supplies fuel to the burner for ignition by the resistance 7. When the arm 8d makes contact only with the segment 8b the motor circuit is broken at the contact III by the interrupter 9. Combustion then continues until the thermostat 5 opens the circuit to the relay 11 thereby completing the motor circuit through the switch 11a and contacts I, III of the interrupter. The motor then turns and the interrupter and arm 8d until they reach their initial positions when the motor circuit is broken at the contact II until the thermostat 5 again closes the circuit to the relay 11. A main control switch 12 is provided. 'In a modified arrangement the thermostat 5 is dispensed with and the circuit to the resistances 6, 7 and fuel pump 4 are controlled by a manually-operated time-switch having spring or pneumatic driving means.
Patent GB-981155-A (GB)
Title: Pipe joint
Inventor: BROWN HARRY
IPC: F16L19/02
Filed: 1961-08-25
Abstract: 981,155. Pipe joints. PARAGON PLASTICS Ltd. July 23, 1962 [Aug. 25, 1961], No. 30803/61. Heading F2G. Means for forming an expansible and contractible pipe joint for plastic pipes comprises a screw-threaded body 10 having a flow passage 12, 14, a flanged pipe end 11, a plastic compression ring 18 and a screw-threaded clamping nut 22. The flanged pipe 11 slidably fits in the enlarged bore 12 in the body 10 while the compression ring 18 slides on the pipe 11 and abuts the pipe flange 13 and has two coned surfaces 19, 20, one surface 19 engaging on the coned surface 16 of the body 10, the other 20 engaging on the coned surface 21 of the nut 22 when the nut is screwed on to the body. The bore 12 allows axial movement of the pipe 11 under thermal expansion and contraction.