baber/WOPTO huggingface dataset:
Patent GB-1010083-A (GB)
Title: Improvements in and relating to devices for manipulating probes, nozzles, or the like in a shaft furnace
IPC: G01K1/14
Filed: 1963-02-28
Abstract: 1,010,083. Gas sampling; temperature measurement. INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE. Feb. 28, 1963 [March 6, 1962],No. 8026/63. Headings G1B and G1D. A device for manipulating a gas sampling tube 2 in blast or other furances comprises a doubleacting fluid piston unit comprising a piston 10  axially movable in a cylinder 7 fixed with respect to the furnace, tong 12 which, according to the direction of movement of the tube 2, clamp the tube or open, and means for controlling the tongs according to the direction of displacement of the piston 10. The cyclinder 7 is fixed relative to the inside wall 1 of the furnace by arms 8a, 8b whose length is adjustable by means of parts 9a, 9b. Tubes 3 and 4 concentric with the tube 2 lead to valve 5 which is closed when the tube 2 is not in placed. A stuffing box 6 seals against the tube 2 and the piston 10 carries a tube 11 and the tongs 12. If it is desired to move the tube 2 into the furnace, the tongs, which are in the form of pivoted V-shaped members are moved by a pneumatic piston unit 13 so that their right hand ends, in Fig. 1, grip the tube 2. Air under pressure from the same source is supplied to the cylinder 7. At the end of the stroke of the piston 10 the air supply is fed to the reverse side of this piston and is cut off from the unit 13, so that the piston 10 and tube 11 move to the left in Fig. 1 leaving the tube 2 in extended position. Further movements of the piston 10 extend the tube 2 further into the furnace and if the stroke of the piston is known then the position of the connection 16 for the collection of the gas sample may be found. The tube 2 may be withdrawn from the furnace by reversing the air supply to the unit 13 and causing the tongs to grip the tube as the piston 10 moves to the left in Fig. 1. Connections 14,15 for water cooling of the tube 2 may be provided, and the tube may also be used to take pressure and temperature measurements in the furnace.
Patent GB-1075316-A (GB)
Title: Improvements in or relating to cryogenic devices
Inventor: CHUBB JOHN NORMAN
IPC: F17C13/02
Filed: 1965-02-24
Abstract: 1,075,316. Refrigerating. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Feb. 4, 1966 [Feb. 24, 1965], No. 8035/65. Heading F4H. A cryogenic device comprises a vessel 1 having a cold surface 2 and containing a cryogenic liquid at a predetermined temperature, an intermediate vessel 10 in communication with vessel 1 through duct 11, a connection 16 for supplying cryogenic liquid from a dewar vessel 3 to the vessel 10 and a valve 12 in the latter for opening the duct 11 only when the temperature of the liquid in vessel 10 is substantially the same as that of the liquid in vessel 1. Vessels 10, 1 and 3 have respective vapour outlets 14, 15, 23 which are each connectable to a common vapour pump (20, Fig. 2, not shown), via a set of three valves (VT1-3, VC1-3 or VD1-3) of progressively decreasing aperture, the valves being controlled by relays energized in response to signals from contacts disposed at different levels in the legs of manometers (Fig. 3, not shown) connected to the respective vessels. Thermometers T 1  and T 2  define the maximum and minimum level of liquid in vessel 1 and a thermometer T 3  is provided to detect the presence of a predetermined level of liquid in vessel 10. The pressures and temperatures within the vessels, the transfer of liquid from vessel 3 to vessel 10 and the transfer of liquid from vessel 10 to vessel 1 are controlled automatically by a logic circuit (Fig. 5, not shown) in response to signals from the pressure and temperature-sensing means. Surface 2 preferably comprises a condensing surface of a cryopump and vessel 1 is surrounded by a heat shield 7 which is an extension of a double-walled lliquid nitrogen containing vessel 8. The cryogenic liquid is preferably helium.
Patent GB-490955-A (GB)
Title: Improvements in hurdles for athletic purposes
IPC: A63K3/04
Filed: 1937-03-19
Abstract: 490,955. Hurdles for athletics. OUTRED, T. D. S., and PATERSON, J. March 19, 1937, No. 8065. [Class 45] The top bar of a hurdle for athletics is supported by means allowing the bar to give if struck. The bar is carried at each end by an arm A pivoted at D to a fitment adapted to be bolted to the end upright of the hurdle, the securing bolt C passing through a slot in the upright to give adjustability for height. The arm is held in the vertical position by engagement of the bolt head with a reinforcing groove in the arm or according to the Provisional Specification by a spring.
Patent GB-596404-A (GB)
Title: Manufacture of metal contact rectifiers
IPC: H01L21/06
Filed: 1945-03-30
Abstract: The base plate of a rectifier may consist of bismuth, cadmium or tin (which sinter at a temperature below the melting point of selenium) either singly or in combination, or together with one or more of the metals nickel, aluminium, pure iron, chromium, magnesium, platinum, silver, zinc, palladium, antimony, which sinter at a temperature above the melting point of selenium.  The base plate preferably comprises an alloy of 61 per cent tin and 39 per cent cadmium or 89 per cent tin and 11 per cent antimony, each of which sinter at about 216 DEG  C.  The former alloy is also suitable for the counterelectrode.  Powders of between 60 mesh and 300 mesh may be employed.  In one method, the base plate powder is compressed in a mould at a pressure of thirty tons per square inch and a layer of semi-conducting powder 14 is applied. The temperature is raised to between 130 DEG  C. and 140 DEG  C. by a heating coil and the two layers are compressed for about two minutes at a pressure of 2,500 pounds per square inch.  This consolidates the powders and forms the nuclei of selenium crystals.  Alternatively both powders may be simultaneously compressed in the mould and in either case the pressed discs may be removed from the mould for the first heat treatment, four or five hours then being necessary at the above stated temperatures. After the first heat treatment, the discs are subjected to a second heat treatment at a temperature just below the melting point of selenium to complete the conversion of the selenium to the grey crystalline metallic form.  This takes from fifteen minutes to one hour and during this treatment, the base metal is further sintered.  The operation may be carried out in a non-oxidising atmosphere.
Patent GB-574458-A (GB)
Title: Improvements in the construction of concrete ceilings, floors, roofs and walls
IPC: E04G21/14
Filed: 1944-05-05
Abstract: 574,458. Casting concrete floors, walls, roofs and ceilings &c. in situ. HAWES, A. H. May 5, 1944, No. 8196/43. [Class 20 (ii)] Concrete &c. floors, walls, roofs, ceilings &c. are cast in shuttering comprising rectangular plates 2, Fig. 3, pressed at the central area to form flat-topped projections 3 of frusto-pyramidal form, and trough-like plates 6, Fig. 4, to bridge the gaps between adjacent projections 3 to form substantially continuous ribs in one direction, the plates 2 being supported at two longitudinal edges on beams 1 which are supported on the structure walls, but which are telescopic to permit removal of the beams and shuttering after the cast concrete &c. has set. The trough-like plates may be omitted where longitudinal transverse ribs are required. Reinforcement 10 for the webs may be carried by strips 9, Fig. 5, whose tongues 12 may be bent downwardly after the casting operation, to be nailed to longitudinal strips of wood carrying the ceiling boards. Roof lights 17, Fig. 7, carried by frames 16 may be incorporated in the casting, by supporting the frames on shuttering plates 22 whose frusto-pyramidal projections are open-topped. Specification 570,661 is referred to as showing shuttering to the inner walls of which the shuttering of the present invention may be applied to produce a wall or sloping roof with stiffening ribs.
Patent GB-729541-A (GB)
Title: Improvements in or relating to television film scanners
Inventor: CLAYDEN RONALD THOMAS
IPC: H04N5/18
Filed: 1950-04-01
Abstract: 729,541. Television. ELECTRIC & MUSICAL INDUSTRIES, Ltd. April 2, 1951 [April 1, 1950], No. 8205/50. Class 40 (3). A television film scanner employing a light spot for scanning the film is arranged to scan the bar separating adjacent frames of the film in order to generate a datum level signal which is employed for D.C. re-inserting purposes. In both positive and negative films the bar corresponds to absolute black, and during the interval following the termination of the blackout pulse for the cathode-ray tube of the scanner until the termination of the frame suppression pulse, the light spot scans the bar and serves to generate in the photo-cell of the scanner a true black-signal. Preferably, a "clamp" type D.C. re-insertion circuit as described in Specification 449,242 is employed, the circuit being switched into operation during the occurrence of the black level signals by pulses derived from and occurring after the black-out pulses. The D.C. re-inserting circuit may be arranged in the feed-back path of a " gamma " correction circuit. The " gamma " correction circuit described in Specification 702,325, [Group XL (c)], may be employed. During the period of the black-out pulse, when the cathode-ray beam is extinguished, the photo-cell output is blacker-than-black and a limiter circuit may be employed to reduce the signal. When the " gamma " correction circuit described in Fig. 3 of Specification 702,325 is employed, the rectifier shown therein can be arranged to function as the limiter. Alternatively, pulses, the amplitude of which are approximately equal to the difference between the black-out signals and the true black signals, may be added to the black-out signals. Specification 729,621 also is referred to.
Patent GB-952136-A (GB)
Title: Improvements relating to a fuel injection pump and distributor for a multi-cylinder internal combustion engine
IPC: F02M41/14
Filed: 1962-03-05
Abstract: 952,136. Fuel injection pumps. ROBERT BOSCH G.m.b.H..March 5, 1962 [March 6, 1961], No. 8330/62. Heading F1A. In a combined fuel injection pump and distributer comprising a rotor 3, Fig. 2, housing opposed pistons 1, 11 reciprocated by a cam track 7 and fed by a rotary feed pump 16, the quantity of fuel reaching the pump chamber 2 is controlled by a free piston 20, Fig. 3, located in the delivery line of the feed pump. Fuel from the feed pump is delivered to piston 20 via passages 35, 17, 15 and grooves 10 and 9 in rotor 3. During rotation of rotor 3 grooves 9 align alternately with passages 23 and 13 leading to chambers 21, 22 on opposite sides of piston 20, the chamber not open to feed pump delivery delivering its contents to the injection pump chamber 2 via passages 8 and 11. The stroke of piston 20 determines the quantity supplied to pump chamber 2 and is controlled by a fixed stop 25, preset for maximum delivery, and a movable stop 26 controlled by a tapered, spring-loaded piston 29 acted upon, via passages 17, 27, 19, by the feed pump pressure which is proportional to engine speed. Manual control of the engine speed is effected by varying the output pressure of the feed pump, and thereby varying the stroke of piston 20, by means of a throttle member 36 in a spill passage 35 leading from the feed pump delivery line 17. The injection pump output is distributed via passages 11 and 12 to a plurality of injector supply conduits 14. Preset stops 25 and 32 may be movable to provide extra fuel for starting and means for stopping the engine, respectively. A relief valve 34 is provided to limit the maximum pressure of the fuel supplied by the feed pump.
Patent GB-465918-A (GB)
Title: Improvements in binding devices for loose-leaf ledgers and the like
IPC: B42F13/34
Filed: 1936-03-20
Abstract: 465,918. Loose-leaf binders. CASSIN, P. March 20, 1936, No. 8336. [Class 146 (i)] The parts a, d of telescopic filing posts are each provided with an enlarged base f slidable in a channel-shaped clamping -bar g so that the distance apart of the posts can be adjusted according to the spacing of the perforations in the leaves, the posts being secured in the required position by distorting the material of the channel bars so as to engage the bases f. In one form, where each base f consists of a plate passed over one end of the part a or d, and retained by splaying the other end, the base of the bar g is indented into the mouth of the enlarged end of the tubular part a. Alternatively, the base of the bar g may be indented by a sharp punch so that the plate f is indented at the same time. In a modification, the bar may be clinched or distorted so as to engage the two ends of the base g. The posts may be formed of flattened cross-section for holding leaves with elongated apertures or the inner parts d may be provided with tongues d<1> as described in Specification 438,466 so as to lock the parts a, d, against withdrawal one from the other Outer sleeves a<1> may be used to extend the posts when the thickness of the pile of leaves exceeds the length of the members a.
Patent GB-453103-A (GB)
Title: Improvements in and relating to radio receivers
IPC: H03J1/12
Filed: 1936-03-20
Abstract: 453,103. Wireless receiving-apparatus. IDEAL WERKE AKT.-GES. FUR DRAHTLOSE TELEPHONIE, 9, Forckenbeckstrasse, Wilmersdorf, Berlin. March 20, 1936, No. 8349. Convention date, March 23, 1935. [Class 40 (v)] In a wireless receiving - set adapted for tuning over a plurality of wavebands, all wavebands are traversed during a single movement from minimum to maximum value of the variable tuning device which is arranged to operate switching means to change from one waveband to another during the movement. As shown in the Figure the variable tuning device comprises condenser 3 controlled by knob 6 in the usual way. The plate 7, which is rigidly connected to the condenser shaft and rotates with the moving blades, operates switch blades 10, 11 so that the contacts are closed during part of the travel of the condenser. For medium and long wave tuning suitable proportions are two-thirds of the travel for medium waves and one-third for long waves. If the set is a heterodyne receiver the regulating range is 1 : 17.1 for the input circuit and 1 : 4.6 for the oscillator and consequently the number of plates in the oscillator circuit can be reduced. The shape of the plates in the oscillator condenser is chosen so that the usual series and parallel trimmers are unnecessary.
Patent GB-281523-A (GB)
Title: Apparatus for heating air by waste gases from boiler or furnace plants
IPC: F23M20/00
Filed: 1927-03-28
Abstract: 281,523. Wade, C. F. March 28, 1927. No Patent granted (Sealing fee not paid). Air-heating furnaces.-For heating air by the waste gases in boiler flues longitudinally corrugated or finned metal tubes or ducts are arranged in the side flues to replace the usual refractory lining. Groups of ducts are cast in vertical sections and fitted together with provision for expansion at the vertical joints. The corrugations may be on the external surface only, as at B<1>, or on both external and internal surfaces as at B<2>. The upper surfaces of the external corrugations are steeply sloped to prevent lodgement of soot.
Patent GB-821490-A (GB)
Title: A paper machine scraper with continuous exhaust
IPC: D21G3/02
Filed: 1958-03-17
Abstract: 821,490. Doctors of paper-making machines. VOITH G.m.b.H., J. M. March 17, 1958 [April 11, 1957], No. 8415/58. Class 96. A doctor for a drying-cylinder 3 of a papermaking machine &c. has the blade 2 interchangeably fitted to a holder 5, and has an apron-strip 7 in a holder 6. The holders 5 and 6 are spaced apart by strips 9, and the assembly is clamped in the mouth 10, 11 of a slotted suction tube 1; inlet openings 13, 14 being thus formed which allow dust, fibre, &c. scraped from the roll 3 to be drawn into the tube 1 and exhausted, as by a fan at one or each end of the tube 1. Such a fan and its motor may be housed within the tube 1. Baffles in the tube 1 may sub-divide the interior into ducts representing approximately equal, adjacent flow sections. A deflector-plate 18 may facilitate guiding leading-strips of paper towards the next drying cylinder.
Patent GB-837024-A (GB)
Title: Improvements in or relating to electric discharge valves
IPC: H01J25/24
Filed: 1957-03-14
Abstract: 837,024. Velocity-modulated tubes. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 14, 1957 [March 17, 1956], No. 8459/57. Class 39(1). In a method of manufacturing a reflex klystron which is suitable for millimetric waves, after the tube has been completely mounted and evacuated, both the electron gun 1 and the reflector electrode 6 are accurately centred by fixing means which form part of the complexed tube and which are then permanently locked in position. As shown the electron gun and reflector electrode supports 16, 14 are brought out through the tube wall by means of stiff but slightly flexible diaphragms 17, 7 so that they are adjustable in directions at right angles to the tube axis by means of adjusting screws 19, 12 arranged outside the vacuum. When the electron gun and the reflector electrode have been accurately centred the adjusting screws are finally locked in position, for example by means of cement 13.
Patent GB-1479840-A (GB)
Title: Steam reheaters
IPC: F22B37/26
Filed: 1976-02-27
Abstract: 1479840 Steam reheaters ENGLISH ELECTRIC CO Ltd 27 Feb 1976 [28 Feb 1975] 8461/75 Heading F4A In a steam reheater, of the type in which steam to be heated is passed within a casing A over a bank of tubes 1 through which heating steam is passed, an outlet chamber 4 for the heating steam is connected to a further set of tubes 11 which lead to a region sufficiently lower in pressure than the chamber to enhance steam flow through the tube bank. As shown the bank 1 is a nest of U-tubes and the further tubes 11 are disposed in a layer below the nest in the path of the oncoming steam to be heated and extend between headers 9 and 12. Headers 12 connect with a condensate drain tube 16 and vents 13 for incondensible gases. Steam/water separators are preferably disposed within the casing A upstream of the reheater and the apparatus is preferably for use in reheating between the stages of a turbine associated with a water-cooled nuclear reactor. The further tubes and associated headers can be separated into elements removable through an access door.
Patent GB-1003377-A (GB)
Title: Apparatus for cooling and/or cleaning hot gases
IPC: B01D51/10
Filed: 1964-02-28
Abstract: 1,003,377. Cyclone separators. METALLGESELLSCHAFT A.G. Feb. 28, 1964 [March 8, 1963], No. 8496/64. Heading B2P. An apparatus for cooling and/or cleaning hot gases comprises a cooler 5 in which the gases are cooled by direct contact with a liquid and having a lower portion 11 which functions as a centrifugal dust separator, the arrangement being such that hot gases containing little or no coarse grained dust can be cooled in the upper portion of the cooler 5, whereas such gases which have been used for drying. and heating- granular material and are thus at a lower temperature and contain coarse grained dust can be cleaned in the separator portion 11. The hot gases issuing from a cement kiln I are conducted, when closing a flap 8 and opening a flap 9, through a duct 3 to the top of the cooler 5 and thence to the separator portion 11 where part of the dust is removed. Alternatively, when it is required to preheat the raw material fed to the kiln from a pulverizing mill 7, the flap 9 is closed and the flap 8 is opened so that the gases are led to the mill 7 and then, through a tangential inlet, into the separator portion 11 in which the coarse particles picked up by the gases in the mill are separated. The partially clean gases are induced by a draught fan 16 to flow from the separator portion 11 to an electrostatic precipitator 15 where the fine particles are separated, the cleaned gases being evacuated through a stack 17. The apparatus may be used for treating furnace gases drying coal in coal pulverizers.
Patent GB-137968-A (GB)
Title: Improvements in and relating to the beetling and treatment of fabrics
IPC: D06C15/14
Filed: 1919-04-05
Abstract: Prior to beetling, piece goods composed of vegetable fires are freed from oils, fats, waxes, and resins, including unsaponifiable oils and waxes contained in sizes, by solvent treatment with benzene, benzine, naphtha, alcohol, ether, &c.  The solvents may be separated from the dissolved matter by distillation.
Patent GB-1041183-A (GB)
Title: Tank or other container clad with sheeting
IPC: B01J19/00
Filed: 1963-03-05
Abstract: 1,041,183. Welding by fusion; soldering. GUTENOFFNUNGSHUTTE STERKRADE A.G. March 5, 1963 [March 6, 1962], No. 8651/63. Heading B3R. In a tank or other container clad with a sheeting element, the sheeting element has slits therein and is bonded to the container by weld or solder material in the slits, none of the slits being in lengthwise alignment with another slit in the element. Part cylindrical sheets 1, Fig. 2 (not shown), formed with parallel slits 2 are secured to the container wall by weld metal filling the slits and by welding adjacent sheets to one another and/or to the container wall. The sheeting may be shaped to conical walls or to the junction of a divergent conical wall 4, Fig. 6 (not shown), and a cylindrical wall. The slits in this case extend from one edge of the sheeting 5. Sheeting slit from one edge is shown at the junction between a convergent conical wall and a cylindrical wall.
Patent GB-764761-A (GB)
Title: Liquid-cooled piston compressor
IPC: F04B39/06
Filed: 1955-03-25
Abstract: 764,761. Reciprocating compressors. LIST, H. March 25, 1955 [April 24, 1954]. No. 8725/55. Class 8(1) A liquid cooled compressor comprises a valve plate 3 held between the cylinder head 2 and the cylinder 1 and having concentric inlet and outlet valves 6, 7 respectively. The plate 3 is cooled by liquid which flows from the cylinder jacket 10 to the head chamber 12 through oblong ports 11 around the plate 3.
Patent GB-691230-A (GB)
Title: An improved projection screen unit
IPC: G03B21/56
Filed: 1951-04-16
Abstract: 691,230. Projection screens. SCHUMANN, M. April 16, 1951 [Sept. 6, 1950], No. 8759/51. Class 97 (i). A screen of polyvinyl sheet material haspockets round its margins to hold rods 7 and having cut-away portions 6 by which fastenings are attached to the rods. Such fastenings may be hooks 11 secured also to screw eyes 8 in the frame 1 or a cord 9 passed alternately round the rods and screw eyes. The pockets may be formed by turning over the margins of the screen material and securing by heat, sticking or sewing. The pocket may alternatively be made separately and of a different material.