baber/WOPTO huggingface dataset:
Patent GB-1178723-A (GB)
Title: Improvements in Gas Generators such as Rocket Engines
IPC: F02K9/97
Filed: 1967-01-25
Abstract: 1,178,723. Combustion gas generators; rocket engines. NORTH AMERICAN ROCKWELL CORP. Jan.25, 1967 [Jan.25, 1966 (2)], No.3787/67. Heading F1J and F1L. In a gas generating device comprising a combustion chamber having an associated throat, such as a rocket engine, the walls of the combustion chamber and throat are formed of a material having a high thermal conductivity to density ratio, and the injector apparatus adapted to inject fuel into the combustion chamber has means for injecting a film of coolant along the wall of the combustion chamber and throat. A high thermal conductivity to density ratio is defined as a ratio of at least 0À4 where thermal conductivity is expressed in BTU/ft<SP>2</SP> /‹ F/ft and density in 1b/ft<SP>3</SP>. The rocket engine shown comprises a wall 4 which defines a combustion chamber 8 and propulsion nozzle having a throat 6. At the inlet end of the chamber a spacer 12, an insulator 20 and an injector member 14 are secured to the wall 4 by means of bolts 18. A manifold ring 22 and injector member 16 are also provided. Fuel supplied through line 26 passes through duct 28 to the manifold 24 and is discharged into the combustion chamber through passages 30, 32, the fuel discharging through passages 32 forming a film cooling layer along the walls of the combustion chamber and nozzle. Oxidiser supplied through line 36 passes through duct 38 to the space 40 and then discharges through passages 42 into the combustion chamber. The wall 4 is formed by beryllium. In a further embodiment the wall is formed of copper the inner surface of which is plated with a layer of nickel; another material is aluminium in conjunction with a layer of nickel or stainless steel. Beryllium has a thermal conductivity to density ratio of 1À16, copper about 0À4 and aluminium about 0À68. It is stated that the high rate of heat conductivity enables the heat developed at the nozzl e throat to be conducted to the forward part of the rocket engine wall and then into the combustion chamber.
Patent GB-929014-A (GB)
Title: Improvements in or relating to the measurement of the moisture content of a web of material, particularly fibrous material
Inventor: YALLUP ALBERT EDWARD
IPC: G01N27/22
Filed: 1959-02-04
Abstract: 929,014. Determining moisture content. BRITISH PAPER & BOARD INDUSTRY RESEARCH ASSOCIATION, and PLESSEY CO. Ltd. Jan. 22, 1960 [Feb. 4, 1959], No. 3894/59. Class 37. In an arrangement for measuring the moisture content of a web, sheet or board a head 6, Fig. 1, includes a number of coplanar electrodes 7 of alternate polarity mounted on insulating blocks 8. The head includes an oscillator A, Fig. 2, feeding a bridge B including the measuring capacitor, a transistor amplifier C, and a phase-sensitive detector D which provides a D.C. output to a centre zero meter F. The head is pivoted about an arm 1 and the pressure on web 2 is adjusted by positioning counterweights 9, 10. A trimmer condenser 14 is provided for zero adjustment.
Patent GB-266336-A (GB)
Title: Improvements in and relating to electric welding torches
IPC: B23K28/02
Filed: 1927-02-12
Abstract: 266,336. British Thomson-Houston Co., Ltd., (Assignees of Weinman, R. A.). Feb. 20, 1926, [Convention date]. Heating by electricity. - Electric welding devices employing an arc in conjunction with hydrogen or other gas as described in Specification 237,898. The electrodes 1, 2, which may be of tungsten, are carried in holders 3, 4 mounted on a spring tube 5 which presses them together and also serves to supply gas admitted through a cock 8 and tubular holder 7. The distance between the electrodes can be adjusted by a handle 11 acting through a spring- controlled rod 10. A screw and nut 12, 13 acting on the handle 11 allow of fine adjustment. The electrode holders consist of lava insulating blocks 19, 20, 21, Fig. 3, enclosed in a casing 22 and provided with asbestos packing 24, 25 so that gas entering by the pipe 5 passes through passages in the blocks to the arc.
Patent GB-1260743-A (GB)
Title: Improvements in screw threaded clamping devices suitable as shuttering clamps
Inventor: BRANDSTAETTER ROLF
IPC: E04G17/065
Filed: 1969-01-24
Abstract: 1,260,743. Releasable fastenings; wall shuttering. R. BRANDSTATTER. 24 Jan., 1969 [26 Jan., 1968], No. 4079/69. Headings E1S and E2B. [Also in Division F2] A screw threaded clamp for fixing, spaced shuttering walls 4, 5 comprises a bolt 1 having two diametrically opposite sets of teeth forming a screw thread, the sets of teeth being separated by a pair of diametrically opposite, substantially flat longitudinal faces, a head piece 2 adapted to be screwed on one end of the bolt and a clamping nut 3 at the other end of the bolt, the head piece having a releasable locking device 16 engageable with at least one of the flat faces to prevent relative rotation of the bolt and the head piece. The head piece consists of a nut 10 provided with hand lugs or levers 20 for rotating the nut. The locking device 16 includes a slidable member 24 having a keyhole 25, 26 so that with the member 24 in a withdrawn position the bolt occupies the portion 25 and the nut 10 may be screwed onto the bolt to a position adjacent a bearer plate 9 which abuts transverse supports 8 and longitudinal supports 7. After rotating the bolt to align it with the portion 26, a head 31 is struck by a hammer to lock the bolt in the portion 26. The two positions of the member 24 are defined by notches 27, 28 and a spring loaded ball 30 position in the nut. The bearer plate 9 may be integral with the nut 10 and provided with a stop to prevent rotation of the nut and the bolt when the nut 3 is being tightened. Several different forms of the locking device such as a pin, an eccentric, a wedge, &c. are also described.
Patent GB-327234-A (GB)
Title: Improvements relating to oil filters
IPC: B01D27/06
Filed: 1929-02-07
Abstract: 327,234. Vokes, C. G. Feb. 7, 1929. Filters having sheet filtering-materials.-An oil filter is provided with a corrugated filtering partition of felt, wire gauze or the like so arranged that, when the filter contains more than a certain amount of oil, the oil is bye-passed and not filtered. As shown in Figs. 1 and 2, the partition takes the form of a vertical tube 5, the shape of which is retained by sewing or stapling the inner ends of the corrugations to a central gauze tube 6 or by fastening the felt either when flat or after folding to a base or stiffener of sufficient rigidity. Oil enters the casing 1 through an inlet 3, is deflected by a cone 8, held against the upper end of the partition by a spring 9, filters inwardly and is discharged through an outlet 4. When the oil accumulates to the level of the top of the tube 5 it passes from the spaces between the loops of the filter direct into the tube 6. In a modification, Fig. 3, a central tube 22 having a plug 23 and perforations above and within the filtering partition serves both as inlet and outlet. The filtering partition need not be tubular and reference is made to apparatus comprising a filtering wall corrugated in elevation and rectangular in plan, the liquid being delivered above it and withdrawn from below.
Patent GB-197409-A (GB)
Title: Improved apparatus for taking stereoscopic cinematograph photographs and projecting the pictures on the bioscope screen
IPC: G03B35/00
Filed: 1922-02-13
Abstract: 197,409. Wilson, A. Feb. 13, 1922. Kinematograph apparatus; stereoscopic kinematography.-The members of pairs of stereoscopic images are taken in one line on a strip of negative film of standard width by simultaneous or alternate use of two gates and lenses in the camera, the corresponding right and left views being separated by a length of film looped between the gates ; from this negative film is printed a positive film on which corresponding right and left views are arranged consecutively. In the camera, Fig. 1, the film passes first down through one gate A, is looped upwards, and passed down through the other gate B. Pivoted rollers K, K<1> are used to adjust the length of the loop and are then swung aside. The feed claws C, C' pull two photographs through each gate for each exposure. For simultaneous use of the two gates, two shutters or a single shutter with two open sectors 180‹ apart may be provided. For alternate use of the two gates a single shutter with one open sector may be provided. Panchromatic film may be used with a red-orange colour filter for one lens and a blue-green filter for the other lens. The gate B and its lens are adjustable laterally in guides F, and the driving shaft D for the feed claws C, C<1> is made telescopic to accommodate this lateral movement. The lens is also adjustable laterally in relation to the gate. Fig. 3 shows a printing-apparatus with two gates A<3>, B<3> which may be operated simultaneously or alternately, while the feed claws pull two pictures through each gate for each exposure. The negative film is looped as shown between the gates and is guided by rollers R<1>, R<2>, R<3>. Alternatively an ordinary printing apparatus may be used to print first all left pictures, and then, after re-winding, to print all right pictures in correct position between the left pictures. For colour effect, revolving filter sectors coloured alternately bluegreen and red-orange may be used both in the camera and in the projector, or the right pictures may be dyed red-orange and the left pictures bluegreen or vice versa, and the pictures may further be viewed through spectacles or binoculars with a red-orange glass for one eye and a blue-green glass for the other eye.
Patent GB-383609-A (GB)
Title: A high frequency apparatus for the production of a new gas derived from ozone
IPC: C01B13/11
Filed: 1931-02-10
Abstract: <PICT:0383609/III/1> An ozonizing apparatus for obtaining what is described under the names Electrozone or Novozone as a new gas stated to be derived from ozone under pressure, consists of a series of insulated tubes n of bakelite &c. and preferably corrugated through which oxygen is passed, and which have internal and external conductors connected to a separate source of high frequency current through a tuned circuit comprising a high-frequency transformer with primary l and secondary m and two condensers k and k<1>.  The current is obtained from a low frequency step-up transformer across the secondary of which is connected an adjustable rotating spark gap f driven by a motor d.  These may be insulated with oil, paraffin wax, bakelite &c.  The Specification also states that the tubes n may be tuned with the high-frequency transformer by connection in series, parallel or series-parallel, and by alteration of their active lengths.
Patent GB-247953-A (GB)
Title: Improvements in electrical signalling devices
IPC: H04L12/18
Filed: 1926-02-16
Abstract: 247,953. Huizinga, M. J., (Assignee of Lier, S. K. D. M. van). Feb. 18, 1925, [Convention date]. Checking receipts. - Indicating-apparatus for use in combination with an electrically - operated bidding - apparatus comprises a plurality of indicators, the operation of any one of which renders the remaining indicators inoperative until the energizing circuit of the operated indicator is opened. The highest bidder is thereby indicated with more certainty in so far as the risk of an incorrect order of transmission of signals is minimized. The system comprises a plurality of electric discharge tubes g<1>, g<2>, g<3>, &c., each controlled by a push and connected in series with a resistance w to a direct or alternating supply. As soon as any one of the tubes is operated, current passes through the resistance w and in consequence the voltage across the tube falls, to a value such that the discharge through the operated tube is maintained, but operation of any one of the remaining tubes is impossible. The resistance w may be replaced by a relay which stops the bidding apparatus when any one of the discharge tubes is operated. Alternatively the potential difference across the resistance w may be impressed upon a thermionic valve, the plate current of which operates the braking device of the apparatus. The operated contact may also be retained in its operative position by a spring pawl until released by the operator or by an electromagnet controlled by the auctioneer.
Patent GB-869128-A (GB)
Title: Process for the production of niobium and tantalum chlorides
Inventor: SUTHERLAND CHARLES ALEXANDER
IPC: C01G33/00
Filed: 1960-02-08
Abstract: Niobium and/or tantalum pentachlorides are obtained from materials containing them in oxidised form, for example as oxides or niobates, by preparing a dry mixture of the material with aluminium in amount at least stoichiometrically equivalent to the reducible metal oxides present, and an amount of carbon, for example pulverised coke, in excess, preferably 50-200%, of that required to form the carbides of the metals, igniting in an inert atmosphere, for example argon or nitrogen, to form a sintered carbide product, cooling it and reacting it with chlorine to convert the carbides to the chlorides, substantially free from oxychloride, from which the niobium and tantalum may be recovered, for example by fractional distillation. The ignition is preferably so effected that a temperature of 1600-2200 DEG C. is reached.  The starting material may be an ore or concentrate, in which case any oxides of iron, titanium, or silicon present will yield the corresponding chlorides, which may be recovered.  The chlorination is preferably effected at 350 DEG C.-600 DEG C.  The starting material may first be calcined at 800-1000 DEG C. to remove water, and the mixture with aluminium and carbon may be compacted or formed into pellets with the aid of a binder such as water, in which case the pellets are first dried at below 100 DEG C.
Patent GB-1453787-A (GB)
Title: Regeneration of gases in a shaft furnace path finding and marking arrangement and circuit
IPC: C10J3/06
Filed: 1974-01-31
Abstract: 1453787 Reducing gas ETUDES ET RECHERCHES INDUSTRIELLES ET METALLURGIQUES-ERIM 31 Jan 1974 4544/74 Heading C5E  A gas with a high CO 2  and/or hydrocarbon, e.g. methane, content is converted into a reducing gas containing CO in a vertical-axis shaft furnace 1 by supplying solid carbonaceous combustible material 2, e.g. coal, coke or ore to an upper zone of the furnace, e.g. via hopper 6, introducing the gas to be converted into a lower zone at 4, introducing oxygenated gas into a central zone via injectors 3, maintaining the temperature in the central zone above 1,000‹ C. by combustion of part of the gas to be converted with the oxygenated gas, the gas being converted in the central zone, removing converted gas from the upper zone via extraction apparatus 7 and may be recycled, and regulating the rate of flow of solid material through the furnace and oxygenated gas into the furnace so that the temperature of the converted gas removed from the upper zone is low relative to the control zone temperature. The gas to be converted introduced into the furnace and the solid material removed from the furnace may be at a temperature which is low relative to the temperature of the central zone. The oxygenated gas may include oxygen and some of the gas to be converted, oxygen and a hydrocarbon other than the gas to be converted, and maybe mixed with water vapour. CO 2  may be added to the oxygenated gas to control the maximum furnace temperature.
Patent GB-1033836-A (GB)
Title: Improvements in or relating to polarisers for very high frequency electro-magnetic waves
Inventor: MARK JOHN RICHARD
IPC: H01Q13/02
Filed: 1961-12-14
Abstract: 1,033,836. Waveguides. MARCONI CO. Ltd. Sept. 12, 1962 [Dec. 14, 1961], No. 4775/64. Divided out of 960,494. Heading H1W. A polarizing arrangement for providing, at will, either elliptically (including circularly) polarized or linearly polarized waves comprises a circular waveguide B1 having an odd number of diametrically arranged discharge tubes arranged at angles to one another in such a manner that, when conductive, they impart an overall rotation of 45 degrees to a linearly polarized input wave. The circular waveguide B1 is connected to a rectangular waveguide C1 containing a phase-shifting element C2 effective to produce a relative delay in components of the output wave which are respectively parallel to and perpendicular to the direction of polarization of the input wave. Thus, when the discharge tubes are in non-conductive condition and there is no rotation of the wave, the element C2 has no effect on the polarization and a linearly polarized wave is radiated by horn D. For a wave rotation of 45 degrees, the element C2 and horn D together produce an elliptically polarized wave. If the differential phase delay produced by the element and the horn amounts to 90 degrees, a circularly polarized wave is produced. The discharge tubes are preferably arranged so that their reflection coefficients form a binomial progression.
Patent GB-1042775-A (GB)
Title: Improvements in and relating to the thermoforming of containers of plastics material
IPC: B29C51/08
Filed: 1964-02-05
Abstract: 1,042,775. Moulding hollow articles. HAVEG INDUSTRIES Inc. Feb. 5, 1964 [March 1, 1963], No. 4818/64. Heading B5A. Sheets of foamed thermoplastic material are vacuum or blow-moulded to form containers, a lip being formed simultaneously by compression moulding. The bottom of the container may also be compression moulded. In the preferred embodiment shown in the Figure, a sheet is pressed into a female die 60 by a plunger 40, a lip being compression moulded upon the finished container by a ring 46, an annular depression carried by which co-operates with a ridge located about the female die. When the plunger has fully entered the die the sheet is transferred to the wall 70 of the mould cavity by applying a vacuum through channels 10, and the bottom of the container is compression moulded by the plunger. If required, compressed air from channel 82 in the plunger may assist the sheet transfer or may transfer it without the aid of the vacuum. In a second embodiment (Fig. 2, not shown), the lipforming ring is spring-biased around the plunger towards the die and the bottom of the container is not compression moulded. In a further embodiment (Fig. 1, not shown), the arrangement is as in Fig. 2 except that the lipforming ridge of the female die is absent, the material being forced into the recess in the lipforming ring by pressure between the ring and the flat upper surface of the die.
Patent GB-1453274-A (GB)
Title: Supercharged internal-combustion engine
IPC: F02B29/04
Filed: 1975-02-05
Abstract: 1453274 Cooling supercharging air in IC engines KUHNLE KOPP & KAUSCH AG 5 Feb 1975 [8 Feb 1974] 4869/75 Heading F1B In a supercharged I.C. engine 1, the charge-air 5 is cooled in a heat exchanger 9 by ambient air 13 impelled by a fan 14. The fan 14 is driven by a turbine 11, through which all the charge-air passes. Preferably, exhaust gases 2 drive a turbocharger 7. The fan 14 is preferably mounted behind the heat exchanger 9 to suck air therethrough and rotates at the same speed as the turbine 11, being mounted on the same shaft 16. The pressure drop across turbine 11 is small compared with that across the compressor 6 of the turbocharger 7, so that the fan 14 rotates at a fraction of the speed of the turbocharger 7. A by-pass conduit 21 controlled by a manually or automatically operated valve 22 is provided to by-pass the heat exchanger 9 when the charge-air is not to be cooled.
Patent GB-803358-A (GB)
Title: Improved process for manufacturing sintered magnesia
IPC: C04B2/10
Filed: 1956-02-17
Abstract: Sintered magnesia is obtained by mixing powdered natural magnesites with a solution of an iron salt of an organic acid and, after drying, baking the mixture at about 1600 DEG  C. in an oxidizing atmosphere. Ferrous salts of acetic, lactic and citric acid are preferred. Examples refer to the addition to 100 kg. of powdered magnesite of (i) 33 kg. of a solution of a ferric lactate solution containing 6 per cent by weight of iron, (ii) 6.6 kg. of ferric citrate and (iii) 12.5 kg. of a ferrous acetate solution containing 8 per cent by weight of iron, respectively.  After stirring and heating to dryness the masses were in each case sintered.  Reference has been directed by the Comptroller to Specification 758,089.
Patent GB-1215084-A (GB)
Title: A cooling device
IPC: B29C48/10
Filed: 1968-02-01
Abstract: 1,215,084. Cooling extruded tubing. PROSYN S.A. 1 Feb., 1968 [3 Feb., 1967], No. 5105/68. Heading B5A. An extruded plastics tube 3 is cooled upon emergence from an extruder 2 by chilled air delivered to orifice 18 in a rotatable member 8, the air entering the member when orfices 11 therein coincide with ports 4 in a fixed base member 1, a seal being provided between member 8 and base 1 by annular flanges 12a, 12b on the former depending into fluid containing annular cavities 13a, 13b in the latter, see also Fig. 2 (not reproduced). Rotatable member 8 is provided with insulation 14, baffles 17 and a belt driven pulley 10 which is centred and supported by inclined rollers 9 on base 1. Ports 4 in base 1 are each connected to a conduit 5, and these conduits receive chilled air from a fan 7 via a distribution chamber 6. A sealing fluid mentioned is mercury.
Patent GB-1363243-A (GB)
Title: Brake boosters
IPC: B60T13/577
Filed: 1972-02-17
Abstract: 1363243 Brake boosters AUTOMOTIVE PRODUCTS Ltd 17 Feb 1972 [24 Feb 1971] 5163/72 Divided out of 1363241 Heading F2F A servomotor booster for a vehicle braking system including a diaphragm 25 dividing a casing into two compartments, a push-rod 12 connected to the driver operable pedal, a plunger connected to the push-rod, a valve operated by the push-rod to control the pressure differential across the diaphragm, an output thrust pin and thrust-transmitting means including diametrically-opposed levers 65 having their inner ends engaged with a fulcrum support provided by the plunger and their outer ends in engagement with supports provided by the diaphragm, a thrust-plate 68 engaged with the thrust pin 79 and supporting fulcrum means for engagement with the levers intermediate their ends includes a coil spring 76 acting between the diaphragm 25 and the output thrust pin 79 so that a thrust applied to the diaphragm 26 is transmitted to the thrust pin via the coil spring initially, the fulcrum means being held spaced from the levers by the spring until resistance to movement of the output thrust pin in the operating direction overcomes the loading of the coil spring.
Patent GB-1023199-A (GB)
Title: Improvements in or relating to hand mirrors
IPC: A45D42/00
Filed: 1965-02-06
Abstract: 1,023,199. Mirrors. P. LECKIE. Feb. 6, 1965, No. 5264/65. Heading A4V. A hand mirror comprises a member 3 having a reflecting surface and, spaced from the back of the member 3, by adhesive strips 8, a framing member 5 having an aperture or transparent window through which a photograph is slid into the space 9 is visible. The member 3 is a sheet of glass with a silver coating 4 and the framing member is a sheet of glass with a silver coating 6 extending along all four edges to form reflecting surfaces surrounding the transparent window.