baber/WOPTO huggingface dataset:
Patent GB-1420056-A (GB)
Title: Microwave power transmission system
IPC: H02J17/00
Filed: 1974-03-12
Abstract: 1420056 Automatic control of micro-wave power transmission NATIONAL AERONAUTICS & SPACE ADMINISTRATION 12 March 1974 [13 March 1973] 11013/74 Heading G3R Power is supplied from a micro-wave generator to a variable impedance load by way of transmitting and receiving antennae. A second receiving antenna is located near the transmitting antenna and picks up reflected power from the first receiving antenna so as to form a control signal which adjusts the power supplied to the generator in accordance with load requirements. As shown, micro-wave power is transmitted between space stations 10, 12. Receiving station 12 carries a dipole array 28 and reflecter 30 constituting a receiving antenna 16 connected to a variable load 25. A transmitting station 10 carries a micro-wave generator feeding an antenna 14 and supplied from a power source 20 controlled by a circuit 22 responsive to a reflected signal received by a small antenna 23 located in a null region of antenna 14. The circuit 22, Fig. 3 (not shown), includes an output potentiometer driven by a motor in response to any difference between the detected power signal and another signal derived from a comparison of the potentiometer setting with a reference voltage. The transmitted power is thus adjusted according to a predetermined relationship with the load impedance, Fig. 4 (not shown).
Patent GB-315467-A (GB)
Title: Improvements in boiler gauge glasses
IPC: F22B37/78
Filed: 1928-04-14
Abstract: 315,467. Babcock &. Wilcox, Ltd., (Babcock & Wilcox Co.). April 14, 1928. Gauge passes.-A gauge glass of the type having flat transparent plates is provided with a flexible transparent sealing member next to the glass, and extending beyond its edges. A metal block 10 is provided with a central passage 10<a>, and is recessed to accommodate the clamping plates 13 which retain the glass plates 12. Strips 18 of mica are disposed between packing 19 and brass or steel strips 20 along its edges, leaving a clear portion opposite the passage 10<a>. Additional packing is provided on the outer side of the glass, and the thickness of the packing is chosen so that the glass itself is only subject to slight pressure.
Patent GB-551638-A (GB)
Title: Improvements in or relating to electric condensers
IPC: H01G4/02
Filed: 1941-08-29
Abstract: 551,638. Condensers. STANDARD TELEPHONES & CABLES, Ltd., and GIBSON, W. T. Aug. 29, 1941, No. 11058. [Class 37] Condensers with vacuum dielectric for 'very high voltages at radio-frequency have electrodes of oxidized nickel to reduce cold emission.
Patent GB-128316-A (GB)
Title: Improvements relating to Electric Batteries.
Inventor: ANTONOFF GEORGE NIKOLAYEVICH
IPC: H01M6/06
Filed: 1917-08-01
Abstract: 128,316. Antonoff, G N. Aug. 1, 1917. Drawings to Specification. Electrodes.-The depolarizing-mixture of manganese dioxide and carbon in a LeclanchÚ cell is moulded under such a pressure as to give a minimum internal resistance to the cell. This pressure is determined by making a number of cells in which the depolarizer i.s compressed to different degrees, and plotting the internal resistances against the pressures. The required pressure having been determined, the cells are then made by inserting the carbons in moulding-cylinders and filling the spaces with the mixture, for instance a paste of 40 per cent graphite and 60 per cent manganese dioxide mixed with water. The predetermined pressure is then applied to each cylinder by a screw or hydraulic press. After removal from the cylinders, the electrodes are placed in zinc containers and the cells completed in the usual way. The zinc containers may be of sufficient strength to maintain the depolarizer under the required pressure, or they may be reinforced by longitudinal bands, or a layer of bitumen may be placed between the container and outer case.
Patent GB-778073-A (GB)
Title: Improvements in cattle pens
IPC: A01K1/00
Filed: 1954-04-15
Abstract: 778,073. Gates. BIBBY, R. July 12, 1955 [April 15, 1954], No. 11139/54. Class 45. [Also in Group VI] A gate or door 1 for a cattle-service pen is pivoted between two uprights 5 by a pin 2 which is additionally supported by lugs 6 welded to the webs 7 of the uprights. The bar 8 of the gate slides between two uprights 9 having a metal supporting plate 10 for the gate welded thereto. The door, Fig. 4, (not shown) may consist of a framework 13 having stiffeners 14 and metal plating 15.
Patent GB-250765-A (GB)
Title: Improvements in insulated weak-current flexible conductors
IPC: H01B7/00
Filed: 1925-04-29
Abstract: 250,765. Dicker, S. G. S., (Kabelfabrik Akt.-Ges.). April 29, 1925. Couplings. -A flexible forked multi-conductor lead for the connection of the movably arranged parts of telephones, wireless headphones or tlie like weak current apparatus, comprises separately insulated conductors 1, 2, Fig. 3, made to the length employed with a common homogeneous insulating sheath of rubber or like elastic material 3 over the continuous portion of the lead, the branches c and the forks b to prevent kinking. Terminals 4 in the form of hooks, eyes, pins &c. may be supported by this sheath 3 at the ends of the leads and branches as shown in Fig. 12. Alternatively a covering of textile, material 20, Fig. 11, may be vulcanized to the rubber sheath 3 to support the pin terminals 22.
Patent GB-684904-A (GB)
Title: Improvements in cigarette and like lighters
IPC: F23Q2/46
Filed: 1951-05-15
Abstract: 684,904. Frictional lighters. KNIGHT, N. W. Oct. 4, 1951 [May 15, 1951], No. 11241/51. Class 75(iii) In a frictional lighter depression of a thumb-operated sleeve 1 slidable on a plunger 2 operatively connected to the igniting mechanism and normally pressed against a catch slide 11 by a helical spring 3 housed in the sleeve results in compression of said spring and eventually displaces the catch slide so that the plunger 2 under the action of the previously compressed spring operates the friction wheel. The lower end of the plunger 2 passes through a collar 10 and normally rests on the spring-urged catch slide 11 which is supported by a further collar 12, the collars and slide being kept in place by a spring 14. On depressing a thumb piece 4 at the top of the sleeve 1 the spring 3 is compressed and a rod 16 connected to the thumb piece eventually passes through holes in the collars and slide, pressing the latter back against its spring to align a hole 15 therein with the plunger which is thereupon forced downwards through the slide and collar 12 by the compressed spring. The ends of a pin 8 which passes through the plunger 2 and through opposed slots 9 in the sleeve 1 are engaged by links 7 which connect the plunger to a wick cap carrier 6, the latter being provided with the usual pawl for rotating a ratchet wheel fixed to the friction wheel. The parts are returned to their initial positions by the spring 14.
Patent GB-812510-A (GB)
Title: Process for preparing cellulose ethers and the product obtained thereby
IPC: C08B11/193
Filed: 1957-04-05
Abstract: Cellulose alkyl hydroxyalkyl ethers are prepared by causing cellulose to absorb from 1.2-2.8 mols. of aqueous alkali metal hydroxide per anhydroglucose unit at 15-30 DEG  C. and treating the resulting alkali cellulose at 20-140 DEG  C. with an amount of alkyl halide (having 1 or 2 carbon atoms) approximately equivalent to the alkali metal hydroxide absorbed by the cellulose, and with an alkylene oxide (having 2-4 carbon atoms) until substantially all of the alkyl halide and from 0.1-0.5 part by weight of alkylene oxide per part of cellulose has reacted.  Preferably the alkyl halide and alkylene oxide are brought into contact with the alkali cellulose simultaneously.  Methyl and ethyl chlorides are the preferred alkyl halides.  The products are water-soluble and their solutions show reduced viscosity hysteresis effects.  Examples are given.
Patent GB-408453-A (GB)
Title: Improved method of and apparatus for elongating solid and hollow metal articles
IPC: B21C1/24
Filed: 1933-04-18
Abstract: 408,453. Drawing; forging; rolling. SINGER, F., 72, Klingenhofstrasse, Nuremberg, Germany. April 18, 1933, No. 11296. [Class 83 (iv).] Cold-rolling.-Articles are elongated by deflecting a short portion away from the axis or central plane of the body, and then reducing and elongating the deflected portion. A tube 1, Fig. 4, is carried on a mandrel 2 with an enlarged head 5. A carriage 19 is reciprocated by an eccentric 17 and arm 13 and carries a member 54 which engages an arm 51 on the rearward stroke to cause gripping members 37, 38 first to engage the tube and then force it somewhat over the head of the mandrel. On the return stroke of the carriage a die 7 is passed over the belled portion 6 to elongate it. The operation is then repeated until the whole tube has been acted on. A support 27 has a recess 30 to receive a flattened portion 29 of the mandrel and mav be rotated about a shaft 28 on releasing a set screw 31 to allow a tube to be introduced. The die may be of the same diameter as the original tube so that an elongated tube of the same external diameter is produced. The relative movements may be obtained by other means, for example by holding the tube stationary and moving the mandrel. Apparatus for elongating a solid article comprises a carriage 66, Fig. 8, reciprocated in inclined guideways 65 by a crank arm 71, and carrying a rack 77 engaging gear teeth 78 on a roll 61 to rotate it. A portion 82 of the work 79 is engaged by the roll as the carriage moves in the upward direction and is deflected on to the surface 76 and elongated. On the return stroke, a rod 97 strikes an abutment 101 to feed another portion of the sheet forward by grippers 84, 87, and the sheet is progressively elongated. A non-rotary tool 61<1>, Fig. 11, deflects and elongates a portion of the work 79<1> supported on the surface 75<1>, over the elongating surface 76<1>, the tool being guided by an upper surface 64<1>. The work may pass immediately into an electrically heated furnace for heat treatment. A tube may pass over a rod or wire rope secured to the mandrel at one end, and surrounded with heat-insulating material.
Patent GB-709280-A (GB)
Title: Improvements in reciprocating ram pumps
Inventor: CARTER MAURICE
IPC: F04B9/04
Filed: 1951-05-15
Abstract: 709,280. Reciprocating pumps. CARTER GEARS, Ltd. May 8, 1952 [May 15, 1951], No. 11313/51. Class 102 (1). A reciprocating pump in which the' pump piston 5 is attached to an eccentric strap 17 and reciprocates in a cylinder 3 formed in a body 2 that has a fork 18 engaging guiding surfaces on the strap and reciprocates the body on a rod 6 in a direction perpendicular to the axis of the cylinder. The rod 6 has a groove 12 which connects the inlet 14 to the cylinder during the suction stroke and a port 13 which connects the cylinder to the axial bore 8, in the rod 6, during the discharge stroke. One end of the bore 8 is connected to the,delivery 9 and the other end to a cylinder 11 containing an accumulator piston 21 loaded by an adjustable spring 22. Under excessive delivery pressures, the piston 21 uncovers a port 23 to allow by-pass of the delivery.
Patent GB-740229-A (GB)
Title: Improvements in or relating to purification process for isolating soluble impuritiesfrom fusible solid substances
IPC: C30B13/00
Filed: 1954-04-20
Abstract: 740,229. Treatment of materials by freezing in zones. TELEFONAKTIEBOLAGET L. M. ERICSSON. April 20, 1954 [April 20, 1953], No. 11333/54. Class 82 (1). A process for isolating fusible impurities in a fusible material, e.g. Ge, comprises subjecting an elongated melt of the material to local cooling so that a solid zone of the material is formed, displacing the solid zone along the melt and finally cooling the melt. The process is suitable for materials and impurities for which the distribution coefficient K is greater than 1. In one form of apparatus for carrying out the process, Fig. 2, the material to be heated is melted in a graphite boat 1, mounted in ceramic or quartz tube 2, by a split heating winding 4 and a frozen zone 7 is formed in the centre of the boat by cooling winding 3 placed between the two halves of the heating winding. The boat is displaced in the tube 2 so that the frozen zone moves from end to end of the boat and after several passes to frozen zone is kept at one end of the boat and the tappings 9 of the heating windings are adjusted to commence cooling of the whole melt from the end remote from the frozen zone. In another form of apparatus for carrying out the process, Fig. 3, the material to be treated is melted in the boat 11 by a split heating winding 14 and a frozen zone 17 is formed at one end of the boat by a cooling winding 13. A second frozen zone is formed at the other end of the boat by a cooling winding 18 displaceable within the heating winding 14. The cooling winding 18 is moved until the second frozen zone is adjacent the frozen zone 17; it is then returned rapidly to its initial position and the boat is moved forward a distance equal to the length of the zone 17 so that the second zone is kept frozen while the zone 17 melts. The boat is then displaced slowly backwards until the second zone occupies the former position of zone 17. This process is repeated until the desired degree of refining is achieved when the whole melt is frozen commencing at the end remote from the zone 17. The above processes may be preceded by a "zone melting" process to remove impurities for which the distribution coefficient K is less than 1.
Patent GB-760513-A (GB)
Title: Improvements in or relating to a jet propulsion engine having an inlet duct coupling
Inventor: MICHAEL HAROLD ETHELBERT
IPC: F02K1/80
Filed: 1954-04-20
Abstract: 760,513. Gas turbine plant. NORTHROP AIRCRAFT, Inc. April 20, 1954, No. 11336/54. Class 110 (3). [Also in Group XXVIII] A gas turbine engine mounted in an aircraft has the intake opening of the engine mounted adjacent to but spaced from the outlet opening of an air intake duct of the aircraft and resilient material attached to one of the openings and spaced from the other in such a manner that the material is moved into contact with the other by expansion of the engine. One arm of a flexible, circular, U-shaped ring 5 is attached to the intake casing 3 of the compressor by bolts passing through a flange 13 and a metal reinforcing ring 12 moulded in the ring. The other arm has an outwardly extending head 10 reinforced by a metal cable which extends forwardly towards a contact ring 15 mounted around the outlet opening of the aircraft intake duct 2. When the engine is cool it draws air through the duct 2 and through openings in the nacelle and the gap between the head 10 and flange 15. When the engine heats up and expands it forces the head 10 into contact with the flange 15. The ram air pressure acting on the internal surface of the ring increases the pressure between the head and flange.
Patent GB-348333-A (GB)
Title: Improvements in or relating to moulds for casting copper
IPC: B22D7/00
Filed: 1930-04-09
Abstract: 348,333. Ingot moulds. WADE, H., 111, Hatton Garden, London.-(American Metal Co., Ltd.; 61, Broadway, New York, U.S.A.) April 9, 1930, No. 11351. [Class 83 (i).] Mould materials.-Water-cooled moulds for casting copper ingots are made by casting a block of copper, or mild steel with under 0À25 per cent carbon, through which a parallel or slightly tapered circular or rectangular passage B is formed during casting or by subsequent drilling &c. The sides of the passage are machined smooth and a number of parallel holes c are drilled vertically right through or almost to the bottom. The open ends are closed by plugs d welded on the outside. If the mould is rectangular horizontal passages e, e<1>, f, f<1> are then drilled to connect the upper and lower ends of the holes c and plugged. Inlet and outlet pipes C, D are then fitted. If the mould is cylindrical the holes c are connected by grooves e, f, Fig. 5, which are closed externally by rings H shrunk on. If desired the ring H may hold an-inner ring, in halves, which fits into the groove. The bottom of the mould may be closed permanently or by a cover E hinged to brackets i and held in closed position by a hinged loop F engaging an eccentric face k on the cover E. In a modification the holes c are made by cooled cores during casting.
Patent GB-433273-A (GB)
Title: Improvements in or relating to intermediate frequency thermionic amplifiers
IPC: H03H7/01
Filed: 1935-04-12
Abstract: 433,273. Valve amplifying circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. April 12, 1935, No. 11376. Convention date, June 18, 1934. [Class 40 (v)] In a transformer-coupled intermediate-frequency amplifier comprising two or more stages with transformers I, II having adjustable couplings, with the tightest coupling, one transformer is over-critically coupled and slightly damped, the other being critically coupled and strongly damped; with loosest coupling, the first transformer is critically coupled, the second being less than critically coupled. By " critical coupling is meant that at which the resonance curve just does not begin to sag.
Patent GB-472768-A (GB)
Title: Improvements in or relating to cinematographic cameras
IPC: G03B19/18
Filed: 1936-04-21
Abstract: 472,768. Kinematograph cameras. ISHERWOOD, A. April 21, 1936, No. 11408. [Class 97 (i)] The pay-out and take-up spools are removably mountect in separate housings; the housing for the pay-out spool is provided with rewinding means and may be detachably connected to the camera casing, and the housing for the take-up spool is within the casing. As shown. a housing a<1> for the pay-out spool a has a flanged light-tight cover a<2> and a flange a<10> extending into an aperture in the camera casing ; it is attached to the casing by screws a<9>. The spindle c<1> for the take-up spool c is carried by a frame c<3> rockable about a hinge c<4> by a spring-controlled push-button c<5> against the action of a spring c<6> or of a. spring at the hinge. The film from the spool a passes to the gate b<3> over a roller all on a spring-pressed arm a<12>, and over a pin 6<2>, and passes from the gate over a pin 6<5> to the spool c. The spool c is driven by engagement between the edge of one of its flanges and a frictionally-rotated wheel d<4> fitted on the usual take-up spool spindle e, the wheel being spring-pressed on to a rubber covered plate e<1> secured to the spindle. Reverse winding may be effected by pressing the button c<5> to disengage the spool c from the wheel d<4>, and by pressing inwards and rotating a knob a<6> fixed on the spindle a<5> carrying the spool a. The spindle a<5> has a squared portion a<7> which then makes driving connection with a square spindle hole, and also carries a disc g having a finger g<1> which then engages a toothed counter-disc g<2> having numerals on its face, visible through a window g<4>, to indicate the length of film reversely wound. A spring carried by the lid of the camera casing may laterally engage the spool c and a roller f may prevent the film from engaging the wheel d<4>.
Patent GB-114874-A (GB)
IPC: A47F7/18
Abstract: 114,874. Trainor, W. C. April 12, 1917. Reel and web apparatus. -Dress material &c. is displayed behind a sheet of glass or other transparent screen on which is painted or otherwise produced the outline of a garment, &c. Fig. 4 shows the back of such a screen provided with a. pair of rollers on which a length of material can be wound, or preferably a number of pieces of material are connected together so that they can be shown in succession. Reference has been directed by the Comptroller to Specification 18147/09.
Patent GB-431600-A (GB)
Title: Improvements in or relating to a.c. signalling systems
IPC: H04L27/04
Filed: 1934-04-17
Abstract: 431,600. Code telegraphy. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ESPLEY, D. C., c/o General Electric Co., Wembley, Middlesex. April 17, 1934, No. 11566. [Class 40 (iii)] A.C. passing from terminals a to terminals b is keyed by means of D.C. impulses applied at terminals 12, and the width of the sideband is restricted (i.e. key click is prevented) by removal of the higher Fourier components from the D.C. impulses by means of a low-pass filter LPF. When the D.C. impulses are rounded off in this way it is unneccessary to use a comparatively costly band-pass filter in the output circuit for restricting the sidebands. Dry-plate rectifiers 4, 8 are employed for purposes of modulation. The normal bias may be regulated by means of a potentiometer 16 through a resistance bridge RB which is so adjusted as to prevent the potentiometer current from leaking back into the D.C. circuit connected to the terminals 12. The parts 16, RB may be omitted, Fig. 1 (not shown). The rectifiers 4, 8 may be dry-plate or thermionic or other rectifiers. The invention may be applied to a system in which side-bands only are transmitted. Specification 292,077, [Class 40 (v)], is referred to.
Patent GB-513743-A (GB)
Title: Improvements in or relating to films and other materials impermeable to ultra-violet radiation
IPC: G03C1/815
Filed: 1938-04-19
Abstract: 513,743. Food wrappings. ROONEY, J. H., DALY, A. J., and LOWE, W. G. April 19, 1938, No. 11748. [Class 49] [Also in Groups XX and IV] Films for covering food are made to absorb substantially the whole range of wavelengths between 2000 and 4000 A by the employment of a mixture of a substance which absorbs only part of this range with one or more other substances which absorb other parts of the range, thus avoiding the incorporation of large quantities of a single substance in the film and deleterious effects upon its mechanical properties. The required mixtures can readily be determined from the absorption spectra in the appropriate range. The base material may be cellulose acetate, nitrate, formate, propionate, butyrate or methyl cellulose, ethyl cellulose, butyl cellulose, benzyl cellulose, ethyl cellulose acetate or hydroxycellulose acetate, regenerated cellulose, synthetic resin. Suitable mixtures for absorbing the ultra-violet radiation are 4:4<1>-di- (dimethylamino)-benzophenone mixed with benzil, phenanthrene quinone or anthraquinone, also gloxal phenylosazone mixed with dimethyl hydro-resorcin benzil, phenanthrene quinone or anthraquinone. Other suitable substances are phenylglyoxal osazone, glucosazone, and di-(dialkylamino)-benzophenones and their dibromo and dinitro derivatives, e.g., the 3:3<1>-dibrom and 2:2<1>-dinitro derivatives of 4:4<1>-di-(dimethylamino )-benzophenone. One example comprises a base material of 80 per cent. of cellulose acetate with 20 per cent. of diethyl phthalate as plasticizer in which are incorporated 4:4<1>-di-(dimethylamino)-benzophenone and benzil in amounts of respectively 0.47 per cent. and 0.74 per cent of the weight of base. Alternatively to the same base may be added 1.25 per cent. of 4:4<1>-di-(dimethylamino)-benzophenone and 1.25 per cent. of 2:2<1> - dinitro - 4:4<1> - di - (dimethylamino) - benzophenone. A dyestuff may also be included to absorb the violet and blue parts of the visible spectrum, e.g. to the above base may be added 1 per cent. 4:4<1>-di-(dimethylamino)- benzophenone, 1.5 per cent. 3:2<1>-dinitro-4:4<1>. di-(dimetbylamino)-benzophenone and 0.33 per cent of benzene-azo-l-naphthalene-4-azo-phydroxy-benzene.