baber/WOPTO huggingface dataset:
Patent GB-528821-A (GB)
Title: Improvements in or relating to impedence transformer arrangements
IPC: H01P5/10
Filed: 1939-05-15
Abstract: 528,821. Coupling high-frequency circuits. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. May 15, 1939, No. 14505. Convention date, June 14, 1938. [Classes 40 (iii) and 40 (v)] In an impedance transformer arrangement providing a transformation ratio of the order 1:4 and affording a means for coupling an impedance which is symmetrical with respect to earth (e.g. a push-pullconnected transmitter or a di-pole) to one which is asymmetrical with respect to earth (e.g. a feeder cable having one conductor earthed), a symmetrical double line is split into two asymmetrical screened lines forming a loop I tuned in its length by a slider J, the outer conductors being cross-connected at the ends of the asymmetrical lines, and energy supply and withdrawal being effected between the symmetrical double line and between the outer conductor ends of the asymmetrical lines. A symmetrising loop II may be connected to the open end of the loop I, and may be folded back on the latter so that tuning of both loops may be effected by a single slider. For longer wave lengths, the two loops may be coiled, the two coils being wound in opposite directions to reduce external fields.
Patent GB-150449-A (GB)
Title: Improvements in and relating to ventilators for windows and the like
IPC: E06B7/06
Filed: 1919-06-07
Abstract: 150,449. Metropolitan Carriage Wagon & Finance Co., and Chandler, L. June 7,1919. Hopper ventilators. - Ventilators such as are hinged on the upper edge of a railway-carriage or like window are provided with a weathertight hinge consisting of a hollow convex fixed member a, Fig. 1, attached by means of lips b to the upper edge of the window, and a concave rolling member e having an outward weather-guard lip f and a channel part g for receiving the ventilator glass or panel h. The parts a, e are retained together, and the movement of the part e is limited, by means of screws k inserted through the member e and through slots d, Fig. 8, in the member a, and engaged with nuts m within this member. The ends of the member a extend beyond the member e and are cut down to provide seats for drainage spouts q on end stop-plates n, which are formed with a stop o at the outer edge and a turned-in flange p at the inner edge. Feet j of metal side beads embracing the edges of the panel h are attached to the ends of the member a and overhang the drainage spouts a. Projecting flanged edges of the side beads engage within the flange p when the ventilator is open. The top edge of the panel h is protected by a metal bead s attached to the side beads by screws. A spring catch v may be secured to the bead s.
Patent GB-860692-A (GB)
Title: Process for the making of plates and sheets from thermoplastic material
IPC: B29C43/00
Filed: 1958-05-06
Abstract: A process for making thermoplastic sheets by hot pressing comprises placing on the lower platen of a press a uniform thickness of thermoplastic material, e.g. as powder or granules, heating the two platens to a temperature near to or above the decomposition temperature of the thermoplastic material, subjecting the material first to a low pressure, e.g. 200 grams/sq. cm. for forcing out laterally any air enclosed therein, then to a high pressure, e.g. 2 to 5 kg./sq. cm., removing the pressed material from the press and cooling it under pressure. The material used may consist of waste thermoplastic material, e.g. powdered tubular tyre residue, freed from impurities by washing, floating or saponification, and may incorporate a plasticiser and a filler such as wood flour. Alternatively a mixture of unplasticized polyvinyl chloride and paper pulp may be used.  The granular or powdered material may distributed in an even layer on the lower platen of the press by pouring it through a grid of stretched wires placed above the platen, and the latter may be first coated with a plastisol and the thermoplastic material directed thereto by an electric field.  The granules may be of different colours to produce a mosaic effect.  A reinforcing web of wire netting, fibrous or textile material, or paper may be incorporated within or on the surface of the moulded sheet.  The process according to the invention may be applied to the formation of a thick sheet by agglomerating a number of superposed thin sheets. Specifications 273,355 and 639,199 are referred to.
Patent GB-419866-A (GB)
Title: Improvements in gasfilled electric discharge tubes
IPC: H01J61/06
Filed: 1934-05-14
Abstract: 419,866. Discharge devices. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. May 14, 1934, No. 14546. Convention date, June 2, 1933. [Class 39 (i).] A discharge device is provided with a filling of gas or vapour or a mixture thereof, and with a filamentary incandescent electrode 5 which is heated solely by the discharge during normal operation, the said electrode being wound in a bifilar manner and so located that its centre is turned towards the discharge path. The electrode is coated with barium oxide and is provided with two leading-in wires which are normally connected together, but may be used to heat the said electrode during manufacture. Preferably, both electrodes are similarly constructed.
Patent GB-458670-A (GB)
Title: Improvements in method and apparatus for dewaxing hydrocarbon oils
IPC: B01D33/00
Filed: 1935-05-18
Abstract: In a continuous process for de-waxing oils, a chilled mixture of the oil with liquid propane or other liquefied normally gaseous hydrocarbon, under conditions of temperature and pressure at which the liquid is in equilibrium with the vapour, is filtered by suction through a moving filter-surface such as a rotating drum partially immersed in the solution, the chilled solution is replenished, and the wax is removed from the exposed portion of the filtersurfaces. By this means, propane is vaporized from the wax cake which is thus kept pervious, and vaporization equilibrium conditions are again established in the filtrate at a lower temperature.  The wax cake is washed on the filter by liquid propane, whereby propane is drawn through the cake and removes oil; the cake is loosened by forcing inert gas through it in the reverse direction.  As shown in Figs. 1 <PICT:0458670/III/1> <PICT:0458670/III/2> and 4, the filter comprises a drum 11 rotating within a casing F. Filter cloths are stretched across wire screens superposed on perforated plates secured to ribs 34 on the drum, these ribs forming a number of separate compartments such as 47 which communicate through radial tubes 46 with a hollow stub axle connected by valve-ports with a vacuum line 12 or with a supply of gas under pressure.  In operation, a mixture of oil and propane at 45--48 DEG  F. passes from the tank E to the bottom of the filter casing F, the vapour space in the tank E being connected with the vapour space in the filter chamber by the pipe 8, or with the propane-recovery apparatus by the pipe 7.  As the drum rotates the wax cake deposited on the immersed portion of the filter is washed by sprays of liquid propane from pipes 44, and is removed by the scraper 41.  The valve ports maintain communication between the vacuum line 12 and the compartments 47 which are immersed and also those which are in the washing zone, and the ports connect the compartments which have passed the washing zone with a supply of inert gas under pressure which passes through the wax cake and loosens it.  The valve ports are adjustable to suit the level of the liquid.  The wax is delivered through the shoot 13 to the de-propanizing tank G heated by a steam-coil.  In an example, the tank E was maintained at atmospheric pressure and a vacuum of 10 inches of mercury was maintained within the compartments the temperature of the chilled mixture was--47 DEG  F., and that of the filtrate in the vacuum line -59 DEG  F.
Patent GB-675568-A (GB)
Title: Improvements relating to gas-turbine engine fuel systems
Inventor: JUBB ALBERT
IPC: F02C9/16
Filed: 1949-05-31
Abstract: 675,568. Gas turbine plant. ROLLS-ROYCE, Ltd. May 15, 1950 [May 31, 1949], No. 14639/49. Class 110(iii) [Also in Group XXIX] A gas-turbine engine fuel system of the type embodying a variable-delivery fuel pump whose output is adjusted by a piston and cylinder or equivalent device sensitive to a controlled servo-pressure, has a controllable valve device operable automatically upon the attainment of a selected value of an operating condition of the engine to admit to the pressuresensitive device a second servo-fluid whose pressure is greater than the controlled pressure. As shown, a variable swash-plate pump 17 is adjusted by a servo-piston 28 sensitive to the pressure in a chamber 30 which has a restricted inlet 32 and a valve-controlled outlet 34. The valve 40 controlling the outlet 34 has an arm 39 which pivots about a diaphragm 38 and is loaded by a spring 52, an evacuated bellows 42 subjected externally to barometric pressure, and a diaphragm 45 subjected to the pressure drop across an adjustable throttle 20 in the fuelpump delivery conduit 19, 21. The servopiston 28 is also controlled by a known mechanism 128 which prevents excessive speed of the engine. The second servo-fluid is led from the delivery conduit 19 via a pipe 60 to a chamber 61 where it acts on one face of a diaphragm 64 whose other face is subjected to the pressure in the delivery conduit 19 downstream of a spring-loaded valve 56a which sets up a pressure difference proportional to the rate of flow of fuel. A valve 59, actuated by the diaphragm 64, is normally closed but opens at a predetermined minimum fuel flow in the conduit 19 to admit the second servo-fluid to the chamber 30 to maintain a minimum fuel flow. In modifications, the valve 59 may be opened by a bellows at a predetermined minimum fuel pressure at the burners of the engine, or by a centrifugal governor when the engine speed falls to a minimum value. Specification 577,016, [Group XXIX], is referred to.
Patent GB-697262-A (GB)
Title: Improvements in or relating to resiliently mounted shaft hanger
IPC: F16C35/04
Filed: 1951-06-21
Abstract: 697,262. Resilient mountings. THOMPSON PRODUCTS, Inc. June 21,1951 [Feb. 5, 1951], No. 14745/51. Class 108 (iii). [Also in Group XXXIV] A hanger assembly for resiliently mounting shafts such as propeller shafts for motor vehicles comprises, a shaft bearing housing 37 provided with pre-loaded rubber bushes 45 for the ends 36 of hanger 34, and looped straps 28 co-operating with flat plates 27 to contain similar bushes 33 which support the hanger from a structural member 20. The forces transmitted to the housing 37 are sufficiently resisted by the bushes to ensure a return of the housing to its normal position, and the bushes provide sound insulation and reduce vibration. Specification 697,263, [Group XXXIV], is referred to.
Patent GB-1341786-A (GB)
Title: Carbon black and process for production thereof
IPC: C09C1/50
Filed: 1971-05-13
Abstract: 1341786 Carbon black PHILLIPS PETROLEUM CO 13 May 1971 [14 May 1970] 14763/71 Addition to 1291487 Heading C1A In preparing carbon black by the process of the parent application, that is by introducing a hydrocarbon feedstock downwardly into a vertically arranged pyrolysis zone, contacting the feedstock in the pyrolysis zone with a mass of hot free oxygen containing gas at a temperature sufficient to maintain the feedstock at a temperature in the range 2400‹ to 2500‹ F., transporting the mixture downwardly through the pyrolysis zone at a linear velocity of less than 15 f.p.s. and recovering the black from the effluent, the feedstock is sprayed into the pyrolysis zone using at least 60 feet<SP>3</SP> of atomizing gas per gallon of feedstock, and the amount of oxidizing gas in the pyrolysis zone supplied as atomizing gas and oxidant is equivalent to at least 445 sq. feet of air/gallon of feedstock. The preferred atomizing gas is air. The h.c. feedstock may be introduced axially into the pyrolysis zone and be contacted therein with a peripheral stream of hot free oxygen containing gas. The stream of hot free-oxygen containing gas is preferably a mass of hot combustion gas produced by the combustion of fuel or part of the feedstock in the presence of a free oxygen containing combustion supporting gas. At least part of the combustion supporting gas may be introduced axially into the pyrolysis zone. When the feedstock is not used as the fuel, at least part of the combustion supporting gas and the fuel are introduced into the periphery of the pyrolysis zone. The preferred combustion supporting gas is air. The furnace black produced is said to have a surface area in the range 14-20 m.<SP>2</SP>/gm. and a structure measured by dibutylphthalate absorption in the range of 24-110 c.c. per 100 gms. The process may be performed using the ranges of pressure, velocity flow, and other preferred and suitable parameters from the Specification 1,291,487.
Patent GB-569707-A (GB)
Title: Improvements in and relating to lazy tongs devices
IPC: A47B91/02
Filed: 1943-09-09
Abstract: 569,707. Broom &c. handles. GORHAM, P. H. Sept. 9, 1943, No. 14781. [Class 61 (i)] [Also in Groups X and XXIV] Consists in means for importing rigidity to lazy-tongs when in the fully-extended state. The lazy -tongs may form collapsible posts and poles, ladder sides and the like and also handles for brooms and like devices. The lazy-tongs comprises a single set of links 1, pivoted by pins 2 within doubled links 3. Intermediate the pins 2 and secured to the links 3 are pins or rivets 4 which in the fully-extended form of the lazytongs abut the links 1 and give additional rigidity to the structure. To ensure good engagement by the pins these may enter recesses 5 in the link 1. As applied to a tent-pole, Fig. 4, the top set of links 2, 3 enter a recess 8 in a block 6 over which the tent 7 passes, the recess serving as a locking device to prevent the lazytongs from collapsing. When used as a broom &c. handle, a hand grip in the form of a forked bracket may be mounted on one of the links and provided with a slotted portion to engage a pin or stud to lock it in the operative position. The links may be of any suitable material, e.g. wood, metal or synthetic resin.
Patent GB-367655-A (GB)
Title: Improvements in or relating to multi-ply bags, and methods of making the same
IPC: B65D30/24
Filed: 1931-05-19
Abstract: 367,655. Compound paper. ANDREAS, A., 3, Engelstrasse, Munster, Westphalia, Germany. May 19, 1931, No. 14807. Convention date, May 20, 1930. Drawings to Specification. [Class 96.] In a multi-ply bag closed at one or both ends by a cross bottom to which a reinforcing strip has been applied, the plies of the walls and the cross bottom or bottoms, including the reinforcing strip or strips, are connected together by pasting with or without sewing, clamping, riveting, &c. so tl.at all the layers participate equally in transmitting the tensile forces, which occur in use, from one side of the bag to the other. The layers of which the bag walls and ends are formed are secured together at individual places spaced apart from one another either by adhesive alone or by adhesive in combination with clamps, clips, stitches, rivets, &c. disposed in staggered relationship to the adhesive. When the bag is provided with a filling valve, air-escape holes, which may be covered by textile fabric, are formed in the bag singly or in groups or rows, the holes being of conical &c. shape with the greatest diameter towards the outside.
Patent GB-554688-A (GB)
Title: Improvements in or relating to machines for forming heel breast flaps
IPC: A43D25/12
Filed: 1941-11-20
Abstract: 554,688. Heel breast flaps. TRIGGS, W. W. (Delman, Inc.). Nov. 20, 1941, No. 14952. [Class 17 (i)] A machine for forming a heel breast flap at the heel end of a split portion of a sole secured to an upper on a last comprises a last carriage slidable to and from the cutting position and carrying a last pin and laterally adjustable means for holding the fore part of the heel end of the last in position appropriate, respectively, for a right or left shoe. The last 55 is held by a last pin 31 and an abutment 34 and spring 54 in a carriage 26 slidable forwardly and rearwardly by a handle 44. The abutment 34 is carried by a block slidable in a lateral slot 27 in the carriage, spring plungers 53, each with a co-operating recess, holding it in position for either a right or left shoe, the lateral adjustment being made by the handle 44. The split portion of the sole is supported on a plate 61 and is cut by a die 60 depressed by a cam 63. Springs 62 allow the plate to yield to avoid damage to the die. The spindle 31 is carried by a lever pivoted to the handle 44 so that the adjustment of the spindle and abutment 34 are simultaneous.
Patent GB-353575-A (GB)
Title: Improvements relating to electric cranes
IPC: B66C13/26
Filed: 1930-05-15
Abstract: 353,575. Control of A. C. motors. CRAVEN BROS. (MANCHESTER), Ltd., Vauxhall Works, Reddish, and STOTT, S. H., Milford, Woodville Grove, South Reddish, both near Stockport. May 15, 1930, No. 14953. Drawings to Specification. [Class 38 (iii).] A slip-ring induction motor operating a crane is caused to operate at creeping speeds by opening a switch in circuit with one phase of the rotor resistance.
Patent GB-383209-A (GB)
Title: Pattern cards or lags for use in looms, embroidery machines and the like
IPC: D03C15/00
Filed: 1932-05-27
Abstract: 383,209. Embroidery machines. HARDT, H., 25, Nordstrasse, Brand, near Aachen, and REINARTZ, A., 182c, Rommelwegstrasse, Roetgen, both in Germany. May 27, 1932, No. 15105. Convention date, May 30, 1931. [Class 112.] A pattern card or lag for looms, embroidery machines, &c. comprises a trough-shaped body with spring sides receiving operating cams b of sheet steel for example of spherical roller, or other three dimensional form held in position by the grip of the spring sides, so that they can be taken out or displaced longitudinally in the trough when a change of pattern is required. The bottom of the trough may have cut out portions c, or projections &c. acting as stops to position the cams. The sides of the trough may have impressions l for. this purpose, and inwardly bent ends h for preventing the cams from slipping out of the trough sidewise. The end openings d receive the members f for connecting the cards &c. The stops on the cylinder moving the cards &c. may engage in the spaces g between the card &c. or may engage openings in the cards &c. These may have side spaces to accommodate cams not being employed.
Patent GB-987987-A (GB)
Title: Improvements in or relating to packages for bottles
Inventor: WHEELER DOUGLAS BAZIL
IPC: B65D5/50
Filed: 1961-04-26
Abstract: 987,987. Bottle cases. THAMES BOARD MILLS Ltd. July 2, 1962 [April 26, 1961], No. 16123/61. Heading B8P. A case 7 of e.g. stiff paperboard for bottles has a transverse soft resilient partition 2, e.g. of sponge rubber, with apertures through which the necks of the bottles project, half the bottles 1 being upright and half 1e, if being inverted sleeves 5, made from single blanks are polygonal in shape to contact the bottles along vertical lines distributed round the bottle to protect them. The case 7 may also be lined with paperboard sheets.
Patent GB-151237-A (GB)
Abstract: 151,237. Automatic Telephone Manufacturing Co., (Assignees of Smith, A. B.). Sept. 18, 1919, [Convention date]. Automatic and semiautomatic exchange systems. - A trunk available to two classes of subscriber is connected either to an automatic selector or to an operator's position, according to the class to which the calling subscriber belongs. For example, an interexchange trunk 30, 31 may be connected to a selector trunk 42, 43 if the call is from a subscriber at the exchange B, to whom such calls are allowed on a flat-rate basis, or to a jack J if the call is from a more distant exchange and is to be charged on a message-rate scale. By means of relays 20, 21 in the test circuits 10, 11, battery of one or other polarity, according to the class of the calling subscriber, is applied to a simplex circuit which extends over the two sides of the trunk 30, 31 in parallel to polarized relays 46, 47. In one case relays 47. 36, 37 are energized, connecting the right-hand side of the repeater R<2> to the selector trunk 42, 43, to which subsequent numerical impulses are repeated by the relays 13, 47, 36. In the other case relay 46 is energized and extends the connexion to the jack J.
Patent GB-543407-A (GB)
Title: Improvements in or relating to the conversion of electric currents
IPC: H02M7/51
Filed: 1940-10-10
Abstract: 543,407. Cathode-ray tubes, circuits for; ; valve generating circuits. ADAMS, T. HAMILTON-. Oct. 10, 1940, No. 15131. [Class 40 (v)] High frequency current for electric furnaces &c. is generated by a mercury vapour or like discharge tube with two anodes A, A<SP>1</SP> connected in parallel to a supply source, one of the anode leads including the primary of a transformer T, the secondary of which is connected to the load F and to a coil M for the magnetic control of the discharge. The discharge is thus rapidly switched from one anode to the other. The lead to the second anode A<SP>1</SP> may also include a transformer T<SP>1</SP> from which high frequency current can be drawn. When the supply source is alternating a further discharge tube is oppositely connected across it.
Patent GB-1396643-A (GB)
IPC: F02M1/00
Filed: 1973-03-30
Abstract: 1396643 Spray carburetters AUTOMOBILES PEUGEOT and REGIE NATIONALE DES USINES RENAULT 30 March 1973 [29 May 1972] 15327/73 Heading F1B A carburetter comprises a main fuel feed circuit 9, 13, Fig.2, opening into the vicinity of a throat situated downstream of a starting flap 7 and upstream of a butterfly member 5 and having parallel to the main feed circuit an additional fuel feed device 14, 17 opening into the suction pipe in the vicinity of the starting flap downstream of the latter when it is in, or in the vicinity of its closing position and an air inlet tube 19 extending downwardly into the well over a major part of its length and having an air inlet orifice 20 leading into the upper part of the well. During acceleration when the flap 7 is nearly closed an increase in depression occurs between members 5 and flap 7. Extra fuel is drawn from the well 14 through passage 17 but initially is practically unemulsified because of the small size of orifice 20 but when the fuel above the base of tube 19 has been supplied air from jet 16 passes by way of the base of tube 19 to give normal mixture supply. In another embodiment the additional fuel feed is neutralized by means in which a closure member 22a, Fig.3 (not shown), controlling an ambient air orifice 24, is operated by a diaphragm in response to induction pipe pressure. In a modification of this arrangement the closure member is operated in response to the engine cooling water temperature by a thermostatic element (30), Fig.5 (not shown). In another embodiment a closure member 28 in the conduit 17, Fig.4 (not shown) between the well 14 and the suction pipe 6 is operated in response to induction pipe pressure acting on a diaphragm 26. In a modification of this embodiment a closure member (35a), Fig.6 (not shown), is operated in response to engine cooling water temperature.