baber/WOPTO huggingface dataset:
Patent GB-473495-A (GB)
Title: Improvements in or relating to reciprocating steam engines
IPC: F01B17/04
Filed: 1936-05-14
Abstract: 473,495. Reciprocating steam engines. WALLIS, A. May 14, 1936, No. 13696. [Classes 122 (ii) and 122 (iii)] A compound or multiple expansion steam engine of the kind wherein the high and low pressure cylinders are concentrically arranged one within the other, is provided with steam chests at opposite ends of the double cylinder and at right-angles to the axis of that component, the valves thereof being arranged for movement in opposite directions in timed relation with the movement of the pistons. A block 1 is provided with a central cylinder 2 wherein is used a high pressure piston 3, and piston-rod 16, the surrounding portion being provided with an annular low pressure piston 5 which has two diametrically disposed piston-rods 21. The piston-rods are coupled by connecting rods 19 and 24 respectively with a two-throw crank-shaft, roller bearings 28 and 13 being used for the big ends and main bearings. Upon the main casing 1 is a bracket 59 having a shaft 58 carrying a double arm 43. These arms are connected by adjustable rods 45 with the piston valves disposed in cylinders formed in the top and bottom covers 8, 9 of the block, and having therein ports communicating with passages leading to the respective cylinders together with connections to the inlet and exhaust steam pipes. Oscillation of these valves is effected by an arm 57 keyed to the shaft 58 and coupled by rod 56 with the cranked lever 55 which in turn is connected by a rod 54 with an eccentric rod 50 mounted upon an eccentric 49 on the main crank-shaft. The head of the eccentric rod 40 is formed by the roller 51 which is adjustable in a slot 53 in a disc 52 which can be adjusted for varying the cut-off or for reversing.
Patent GB-674470-A (GB)
Title: Improvements in or relating to ribbon microphones
IPC: H04R9/08
Filed: 1950-06-01
Abstract: 674,470. Microphones. COOPER, F. T. June 1, 1950, No. 13717/50. Class 40 (iv). [Also in Group XXXVIII] A ribbon microphone is combined with a harmonium (see Group XXXVIII) and acoustic reaction is avoided by feeding the air stream from the harmonium through the microphone casing. Rubber supports are fitted between the microphone and the casing and between the casing and the harmonium. The microphone includes a number of small magnets M which are arranged side-by-side to form two parallel bars. Polepieces A<SP>1</SP>-A<SP>4</SP> form magnetic gaps in which two ribbons P and two ribbons R are mounted. The polepieces are secured to the magnets and to non-magnetic spacers X to form a unit. The ribbons P, R are of heavy but different gauges and, respond respectively to low and to high frequencies. The ribbons P, R are connected in separate loops to the primaries of transformers Z<SP>1</SP>, Z<SP>2</SP> (Figs. 5, 7), the secondaries of which are connected through volume controls VC<SP>1</SP>, VC2 to an amplifier. The heavy metal microphone casing is provided with inlet openings Y1, Y2 in the base and outlet openings V in the sides. The openings Y1, Y2 are fitted over similar openings in the harmonium and in an intervening rubber slab. The ribbons P, R are screened from the direct air stream from the harmonium by the metal between the openings Y', Y<SP>2</SP> and by the polepieces.
Patent GB-151676-A (GB)
Title: Improvements in or relating to self-contained cabinets for domestic purposes
IPC: A47B77/16
Filed: 1919-05-31
Abstract: 151,676. Dunhill, W. May 31, 1919. Storage bins. - A cabinet for domestic purposes comprises a flour bin o mounted on arms p which allow the bin to be drawn into a forward position and have attached thereto returning-springs q. The lower part of the bin is formed as a hopper s to which is attached a removable part u having a valve v operated by a handle x. By operating the valve v and a cut-off slide y pivoted at 2 a measured quantity of flour may be delivered.
Patent GB-1465746-A (GB)
Title: Expanding dowels
IPC: F16B13/06
Filed: 1974-03-29
Abstract: 1465746 Expanding dowel F MACHTLE 29 March 1974 [15 June 1973 12 July 1973] 13915/74 Heading F2H An expanding dowel comprises segments, for example, in the form of half-shells, forming a sleeve 26 and an annular spring 31 located within a groove 27 formed in the segments at a position located approximately 1/3 to “ of the way along the sleeve from the end adjacent nut 25, tapering expanding members 23, 24 and bolt 20, member 23 being threaded on the bolt and member 24 being slidable thereon, the arrangement being such that tightening of nut 25 causes expansion of sleeve 26, said expansion being limited by providing tapering member 24 with a shoulder 30. Tapering member 23 may be retained on the end of the bolt by an adhesive. A slot 29 may be provided on the other end of the bolt so that the bolt may be held firm by a screw driver when nut 25 is rotated thereon. Alternatively, a hexagonal-headed bolt may be used instead of the bolt-nut assembly shown.
Patent GB-1440936-A (GB)
Title: Burners
IPC: F23D11/10
Filed: 1973-03-22
Abstract: 1440936 Atmospheric burners HUNTING OILFIELD SERVICES Ltd 21 May 1974 [22 March 1973] 13971/73 Heading F4T A burner, e.g. for burning crude oil on a drilling rig, comprises a body 1 having a bore 2 open at both ends 3, 4 and defining an annular fuel chamber 5, combustion adjacent end 4 causing air to be drawn through bore 2 to mix with fuel drawn through outlet 7 from chamber 5. To vary the size of outlet 7 to obtain the desired degree of fuel atomization, tubular member 17 is axially slidable relative to member 12, the fuel pressure in chamber 5 acting on a flange 20 of member 17 to tend to urge the latter rightwards to increase outlet 7. Such movement is opposed by a spring or by hydraulic pressure in cylinder 19 acting on a piston 18, the hydraulic pressure being varied in dependence upon the fuel pressure. Swirl is applied to the air and fuel streams respectively by vanes 23 on centrebody 22 and by helical passages in flange 21. Additional air may be drawn in through openings 24 in member 8. The latter is surrounded by a sleeve 25 supporting a hollow ring 26 supplied with water which is sprayed through angularly spaced, axially directed spaced nozzles 27 into the flame to reduce smoke generation. The nozzles are coupled together in groups controlled by hydraulic actuators 28. Additional radially directed nozzles 37 may be disposed between nozzles 28 to provide a protective spray. Sleeve 25 is itself supported by angularly spaced vanes 29, inclined to inpart swirl to the air flowing therebetween. To start the burner, propane gas supplied to a hollow annular body 30 issues through holes 31 and is ignited by sparking plug 32 to form a ring of flame around the outlet of member 8 which draws fuel and air through bore 2. The burner, including water spray ring 26, is mounted on a swivel joint 33 on the main fuel supply duct 34 for angular movement about a vertical axis. A lifting ring 36 is provided.
Patent GB-112403-A (GB)
Title: Improvements in Bilge Keels.
Inventor: DUNCAN GEORGE
IPC: B63B39/06
Filed: 1917-09-28
Abstract: 112,403. Duncan, G. Sept. 28, 1917. Bilge keels. - Greater steadiness and better steering are obtained by bilge keels consisting of two of more rows of keel sections a, b with gaps d between. The gaps are preferably staggered, as shown, and are approximately equal to the distance between adjacent rows. The keel sections may consist of flat-plates, as shown in Fig. 1, or they may be of V-shaped cross-section.
Patent GB-708273-A (GB)
Title: Improvements in or relating to glazing bars
IPC: E04D3/08
Filed: 1951-06-13
Abstract: 708,273. Glazing. AYGEE, Ltd., GEE, G. M., and OLIVER, J. A. Sept. 15, 1952 [June 13, 1951], No. 14068/51. Class 20 (3) Glass sheets 21 are clamped to the flanges 18 of glazing bars 10 by fastening members comprising a bar 36 having a pair of plate-like wings 35, the bar, with the wings horizontal, being passed through the horizontal longer, limb 31 of an L-shaped hole in the web of the bar and then rotated so that the bar fits into the shorter, vertical, limb of the hole and the wings, now vertical, engage the upper faces of the sheets.
Patent GB-198671-A (GB)
Title: Improvements in carburetting apparatus for internal combustion engines
IPC: F02M9/08
Filed: 1923-05-29
Abstract: 198,671. Heuchel, J. P. May 30, 1922, [Convention date]. Spray carburettors.-The fuel nozzle 3 passes through and is affixed to the float, the fuel therefrom mixing first with air entering around the nozzle, and then with air entering through passages 5, to furnish a rich mixture to the ports 7; the ports 7 are controlled by a ported drum 13 which -also controls additional air ports 12 in the outer casing 11 and is rotated by a handle 17. Small holes are provided in the bottom of the drum 13 through which mixture for slow-running passes when the ports 7 are closed, this mixture being diluted with a regulatable amount of air supplied through central passages 8, 16 and a passage 9 controlled by a screw 10.
Patent GB-687588-A (GB)
Title: Improvements in or relating to supporting devices for cinematographic apparatus
IPC: F16M11/04
Filed: 1950-06-07
Abstract: 687,588. Stands. PAILLARD SOC. ANON. June 7, 1950 [July 15, 1949], No. 14197/50. Class 52(iii) [Also in Groups VII and XX] A handle, having an element for securing kinematograph apparatus, can be secured in at least two alternative positions to a telescopic support which can be clamped in any extended position. The tube 8, Fig. 1, has a tripod-type screw 9 at one end and is screw threaded at the other. The conical end 8a is engaged by a conical portion in a nut 10 which contains a felt washer 13 to exclude dirt. The screw 9 may carry a camera, or the handle A, Fig. 2, by either of the tapped holes 3, 4. The handle contains a tripod screw 5, of different size from 9 and retractable, being squared at 6 to engage a square hole 6a and screw threaded in a milled disc 7 in a slot in the handle. Fig. 8 shows lamps 34, with reflectors 38, mounted on a transverse rod M secured to the tube 8 by a clamping member D with perpendicular bores and clamping screws. For tilting purposes, Fig. 10, the camera is secured with its axis parallel to the telescopic support using the handle A mounted by the tapped hole 4. The telescopic support carries two clamping members D each with its second bore vertical. One supports a screen F on which characters may be mounted, theother a member L carrying a transverse rod, on which are mounted lamps 34 which may be either side of the screen.
Patent GB-150798-A (GB)
Title: Improvements in and relating to wireless signalling systems
IPC: H01Q1/52
Filed: 1919-06-05
Abstract: 150,798. British Thomson - Houston Co., (General Electric Co.). June 5, 1919. Duplex wireless signalling; directive wireless signalling; aerials.-A wireless receiving system, adapted for duplex telegraphy or telephony, comprises a receiving-coil in two halves having large mutual inductance, the junction point being grounded so as to provide a substantially non-inductance path to ground for currents induced electrostatically by a neighbouring transmitting aerial. The receiving-apparatus is connected to one half only of the coil, which is placed with its axis pointing towards the ground connexion of the neighbouring transmitting aerial, and at right angles to the direction of the desired transmitting station. Fig. 1 shows the system diagrammatically, Figs. 2 and 3 show forms of the receiving coil, and Fig. 5 illustrates the position of the receiving-coil relatively to the transmitting-aerials. The receiving-coil 2 is formed in two symmetrical halves, the junction point being earthed, and one half of the coil is tuned by a. condenser 6, and connected across the grid and filament of a thermionic amplifier 3. The electrostatic effect of varying charges on the neighbouring transmitting aerial 1 is represented on Fig. 1 by connexions through condensers 10 shown in dotted lines. Currents resulting therefrom flow through the half-coils 2 in parallel, and if the mutual inductance of the coils is nearly equal to the self-inductance of each half, a substantially non-inductive path to earth is provided for these currents, and no potential difference is produced across the grid and filament. In Fig. 2 the receiving-aerial is shown as comprising a number of flat spiral units 11 connected in series in such a way that successive units in the series are situated on opposite sides of the earth connexion. Each unit 11 comprises a number of flat spiral coils parallel with each other and connected in series by axial wires placed alternately at the centre and at the rim. Another form of spiral receiving-coil shown in Fig. 3 comprises a pair of wires 12 twisted together. One wire has a free end at the centre of the coil and its outer end earthed; the other has its central end earthed, and its outer end connected to the grid of the amplifier 3. The receiving coil 2, Fig. 5, is placed with its axis intersecting the supply wire 19 of the neighbouring transmitting aerial, so as to avoid electro-magnetic induction therefrom. The axis of the coil 2 is at right angles to the line joining it to the desired transmitting station 20, thereby giving maximum reception from that direction.
Patent GB-549187-A (GB)
Title: Improvement in earth scrapers
IPC: E02F3/64
Filed: 1941-11-06
Abstract: 549,187. Earth-scrapers. KOEHRING CO. Nov. 6, 1941, No. 14321. Convention date, Jan. 27. [Class 68 (i)] In an earth-scraper in which the scraper blade 5 is carried by the body 3 and raised or lowered thereby, and a rear apron 6 is pivoted at 7 behind the blade and moved by a cable 8 between earth-carrying and dumping positions, the apron is provided at its edges with scraper plates 12 which bear against the inner sides of the body and are held to the apron by bolt and slot connections to permit taking-up of wear. Where a front apron, mounted in reverse position, is provided, such apron may be similarly provided with plates 12.
Patent GB-420130-A (GB)
Title: Improvements in motion picture cameras and sound recording apparatus
IPC: G11B7/00
Filed: 1934-05-11
Abstract: 420,130. Combined motion-picture and sound cameras. RADIO CORPORATION OF AMERICA, 30, Rockefeller Plaza, New York, U.S.A. May 11, 1934, No. 14328. Convention date, May 11, 1933. [Class 40 (ii)] A combined motion-picture camera and sound recorder comprises an acoustic diaphragm 10 which vibrates a mirror 18 to modulate light projected from an optical system 36 by way of the mirror and of a reflecting system 40 and condenser 41 on to the photographic film 4, which is driven at uniform speed by the sprocket 3. The film is drawn from a supply 1 and is fed intermittently through the gate 5 of the camera. Light for sound recording is supplied by a lamp 30 illuminated by current from a dry battery 31 mounted in a box at the rear of the camera. The diaphragm may be mounted at the front, side or rear of the camera and is protected by a perforated cover 12. The modulating mirror 18 is carried by a light spring. The reflecting mirror 40 is partly blackened so that a sound record of varying width is produced by absorbing part of the length of the image of the slit 38, while a varying density sound record may be obtained by absorbing part of the width of the image, the mirror 18 being mounted to vibrate in a vertical plane in this case.
Patent GB-198682-A (GB)
IPC: G04B13/02
Filed: 1923-05-31
Abstract: 198,682. Junghans Akt.-Ges., Geb. June 1, 1922, [Convention date]. Moulds. - Pin-wheel bodies for clockwork &c. are made by casting under pressure. The body may be cast about an arbor m and gear wheel q. The mould comprises relatively movable parts a, b of which b is recessed at r to form the gate and has a hole o through which the arbor is introduced and held by a rod s. The mould part a may be recessed to hold the gear q and carries a pair of slides c, d, to form the waist e, an ejector l, which may be recessed at n to hold the arbor, and a set of core rods k.
Patent GB-621845-A (GB)
Title: Thermoplastic composition
IPC: C08L91/06
Filed: 1945-06-07
Abstract: A thermoplastic composition comprising a mixture of 50-90 per cent wax and 10-50 per cent blown vegetable oils is used for making the casting patterns which are employed in the manufacture of moulded articles such as dentures and rings and pins or other items of jewellery.  The wax may be candelilla wax, carnauba wax, beeswax, palm wax, bayberry wax, ouricoury wax, ceresin wax, or the amorphous, crystalline or microcrystalline type of paraffin wax and mixtures of waxes may be employed.  The blown oil may be derived from cashew shell oil, linseed oil, oiticica oil or chinawood oil and mixtures of blown oils may be employed. Fillers such as natural or synthetic resins, particularly rosin, dammar, melamine resins, phenolic resins, polystyrene or polymethyl methacrylate, may be incorporated in the composition. In the examples, compositions are described consisting of (a) blown linseed oil with candelilla wax, carnauba wax, microcrystalline wax, amorphous mineral wax, yellow beeswax or ceresin wax, (b) blown chinawood oil with candelilla wax, beeswax or ceresin wax, and (c) blown linseed oil with candelilla wax and amorphous wax, carnauba wax or rosin.  The Specification as open to inspection under Sect. 91 refers to a thermoplastic composition comprising an intermixture of wax and a polymerized vegetable oil miscible therewith.  This subject-matter does not appear in the Specification as accepted.ALSO:A thermoplastic composition comprising a mixture of 50 - 90 per cent wax and 10 - 50 per cent blown vegetable oil is used for making the casting patterns which are employed in the manufacture of moulded articles such as dentures and rings and pins or other items of jewellery.  The wax may be candelilla wax, carnauba wax, beeswax, palm wax, bayberry wax, ouricoury wax, ceresin wax or the amorphous crystalline or microcrystalline type of paraffin wax and mixtures of waxes may be employed.  The blown oil may be derived from cashew shell oil, linseed oil, oiticica oil or chinawood oil and mixtures of blown oils may be employed.  Fillers such as natural or synthetic resins, particularly rosin, dammar, melamine resins, phenolic resins, polystyrene or polymethyl methacrylate, may be incorporated in the composition.  In the examples, compositions are described consisting of (a) blown linseed oil with candelilla wax, carnauba wax, microcrystalline wax, amorphous mineral wax, yellow beeswax or ceresin wax, (b) blown china-wood oil with candelilla wax, beeswax or ceresin wax and (c) blown linseed oil with candelilla wax and omorphous wax, carnauba wax or rosin.  The Specification as open to inspection under Sect. 91 refers to a thermoplastic composition comprising an intermixture of wax and a polymerized vegetable oil miscible therewith.  This subject-matter does not appear in the Specification as accepted.
Patent GB-591626-A (GB)
Title: Improvements in and relating to erection devices for gyro-verticals
IPC: G01C19/44
Filed: 1943-09-03
Abstract: 591,626. Gyroscopic apparatus. SPERRY GYROSCOPE CO., Inc. Sept. 3, 1943, No. 14427. Convention date, Dec. 30, 1941. [Class 97 (iii)] An erecting device for a gyro-vertical comprises a member rotatably mounted on the gyroscope about a normally vertical axis and angularly positioned about the said axis by an unbalanced mass distribution, means formed or provided on the member for producing a torque normally balancing the gravitational torque of the unbalanced mass distribution and a mass adapted when the gyroscope tilts, to be displaced in such a manner that the torque becomes unbalanced and the residual torque erects the gyroscope. Referring to the underneath plan shown in Fig. 2, the erecting member 22, rotatable about an axis coaxial with the spin axis of the rotor is mounted beneath the rotor case 12 and communicates therewith. Air exhausted from the rotor case passes out through a tube 34 and port 35 forming part of the erecting member, the reaction at the port balancing a mass 36 located on the end of the tube. The erecting member also includes a radial arm 39 carrying a closed tube 40 containing a ball 43. Upon tilt of the gyro, the erecting member rotates until the mass 36 occupies its lowermost position and the ball 43 runs to a position B in 90 degrees relation to the mass 36 thereby applying a torque to erect the gyroscope. In a modification, Figs. 6 and 7, a solid arm 34 replaces the tube 34, and the arm 39 is tubular to allow the air to pass out at ports 45, 47, the port 47 being closed by the ball 43 when the gyro is vertical. When the spin axis leaves the vertical, the mass 36 moves to its lowermost position and the ball 43 runs to its position B, the resultant torque restoring the gyro. The air jet produced at the port 47 counterbalances the effect of the change in the centre of gravity of the device during its turning movement.
Patent GB-326093-A (GB)
Title: Ratchet tool for compressing springs and removing cotter pins from motor car clutches
IPC: B25B27/26
Filed: 1929-05-09
Abstract: 326,093. Crayton, A. G., and Stocker, T. W. May 9, 1929. Prizing-tools.-A tool for compressing motor car clutch springs to facilitate removal and replacement of the cotter pin comprises a lever G pivoted to a carrier C adapted to be bolted to the car and provided at the end with a slotted dog A rotatably mounted in a carrier B hinged to the lever. The tool is locked after depressing the lever by a pawl F engaging a rack E.
Patent GB-858394-A (GB)
Title: Improvements in or relating to spectacle frames
IPC: G02C5/22
Filed: 1959-04-28
Abstract: 858,394. Spectacle frames. MECCANOPTICA LEONARDO S.p.A. April 28, 1959 [April 30, 1958], No. 14505/59. Class 97(1) A frame for a pair of spectacles comprises side arms 1 connected to the front piece 2 through a worm 7 and worm wheel connection so that on actuation of the worm the slope of the front piece is varied about an axis X-X. The front piece may include a sleeve 6 which is rotatable about a pivot 5 on a hinge member 4, the worm wheel 8 being mounted on one end of the sleeve 6. The worm is retained in a recess in member 4 by a washer secured to the housing and an elastic washer is fitted between said first washer and the worm to urge the worm into said recess.
Patent GB-457043-A (GB)
Title: Improvements relating to cartridge belts for machine guns
IPC: F42B39/08
Filed: 1935-05-17
Abstract: 457,043. Cartridge belts. MAHMOUD BEY RESHAD, I., Murad Baroody's Pharmacy, Bab Idris, Beyrout, Lebanon, Syria. May 17, 1935, No. 14532. [Class 92 (ii)] Relates to metal-link cartridge belts for machine guns of the kind in which the links are in the form of two spring- connected sheath parts 4 which grip a cartridge. According to the invention, the sheath parts are connected to one another and to adjacent sheath parts by spiral springs 7 threaded through holes 6 in flanges 5 on the sheath parts. Adjacent sheaths are connected together by threading the adjacent springs through one another. Terminal members are formed by plates 8 connected together and to the end sheath by the threaded springs 7.