baber/WOPTO huggingface dataset:
Patent GB-1404313-A (GB)
Title: Manufacture of high purity glass
IPC: C03B5/02
Filed: 1971-08-13
Abstract: 1404313 High purity glass DEFENCE SECRETARY OF STATE FOR 13 Nov 1972 [13 Aug 1971] 38078/71 Heading C1M High purity glass is produced by providing an electrically conducting admixture of the ingredients of the glass in a high-purity, electrically insulating refractory crucible, and heating and melting the admixture by generation of heat by an electromagnetic field generated within the admixture by an external source of alternating current electrical power, thereby maintaining a temperature gradient during melting in which the temperature decreases with increasing distance from the melt so that volatile impurities are discouraged from diffusing into the melt from the crucible and the surrounding environment. The admixture may be melted in crucible 1 by induction heating using coil assembly 7. A signal frequency of 450 KHz to 5 MHz may be used. The admixture may be preheated to a temperature at which it has a resistivity of less than 10 ohm. cm. (e.g. 650-1100‹ C. for a glass of composition SiO 2  70% (by weight), Na 2 O 24%, CaO 6%) in a preheating electrical resistance furnace 6. The pre-heating may also be achieved by induction heating of a graphite susceptor sheathed in silica (Fig. 3, not shown). Both the crucible 1 and coil 7 may be cooled by water or air-jets. The admixture may alternatively be heated by dielectric heating. Crucible 11 is mounted between aluminium plate electrodes 13, which may be water cooled, and rotated while being heated by application of several kilovolts to the electrodes. In either embodiment the crucible may be formed from alumina, silica, magnesia, thoria or boron nitride.
Patent GB-1201134-A (GB)
Title: Liquid developer
IPC: G03G9/12
Filed: 1968-08-09
Abstract: 1,201,134. Liquid developer for electrostatic images. FUJI SHASHIN FILM K.K. Aug. 9, 1968 [Aug.11, 1967], No.38291/68. Heading G2H. A liquid developer for electrostatic images is characterized in that positively charged particles comprising at least one yellow pigment of formula: - wherein R is OCH 3 , OC 2 H 5  or OC 3 H 7  as main constituent are suspended in an insulating liquid. The developer may comprise a rosin modified phenol formaldehyde resin, a pentaerythritol ester of rosin, glycerin ester of hydrogenated rosin, ethyl cellulose, alkyd resins, polyacrylic or polymethacrylic resins, polystyrene polyketones and polyvinyl acetate. Carrier liquids are hydrocarbons and fluorinated hydrocarbons. Dispersing agents and vegetable oils e.g. linseed oil may also be present. The developer is used to produce multicolour images.
Patent GB-1080537-A (GB)
Title: Fuel feeding installation for internal combustion engine
IPC: F02M1/00
Filed: 1964-09-23
Abstract: 1,080,537. Forming foam. FORTISSIMO ETABLISSEMENT. Sept. 23, 1964 [June 11, 1964], No. 38715/64. Heading B1C. [Also in Division F1] A mixing device 1 in the fuel pipe from a pump to a carburetter has air inlet flanges 7 leading to a perforated plate 12 in which air is mixed with the fuel to form a foam. The plate 7, which may be of porous material, is held between sieves 8, 15, by a plug 2 screwing into the body 1. Each sieve comprises a pair of flat gauzes with a corrugated gauze therebetween.
Patent GB-852122-A (GB)
Title: Improvements in and relating to photographic-printing apparatus
Inventor: ELLIS ROBERT M
IPC: G03B27/16
Filed: 1957-12-13
Abstract: 852,122. Photographic printing apparatus. ROLOLITE CORPORATION. Dec. 13, 1957, No. 38734/57. Class 98(2) A photographic printing apparatus comprises at least three cylindrical guide rolls disposed horizontally and rotatable parallel to one another, one of the rolls being movable with respect to the others, a cylindrical lamp mounted parallel-and urged against-the rolls in a depending loop of an endless band threaded about the rolls, means for guiding copy and light sensitive material between the band and the lamp for printing and means for detachably and flexibly connecting the lamp to a power source. As shown, rolls 20, 21 and 22 are -rotatably mounted about horizontal axes a, b and c, the roll 22 being driveable by means not shown. An endless band 29 is threaded about the rolls and is tensioned by displacing the roll 20 in a horizontal plane. A printing roll 28 in the form of a fluorescent tubular lamp is situated in a loop of the lead by which it is driven. The electrical leads enter the lamp mountings 40, 41 each of which comprises an insulated vertical wall 47 which separates two compartments; the first (Fig. 8) contains a terminal strip 49 to which one of the leads 451 is connected, and is secured to the wall 47 by a stud 50. A similar strip 51 in the second compartment is attached to the wall 47 in the chamber 4711 which is in turn connected with the second input lead 45. Pairs of conductor pins at either end of the lamp 28 fit into sockets 53 of a member 52 rotatable on a stud 50 in the wall 47 and contact resilient brushes which engage the input leads via slip rings 56, 57 which are rotatably mounted along the stud 50 together with the member 52. The apparatus is mounted in an enclosed housing with a slot for feeding in material which passes between the lamp and the band for printing. Reference has been directed by the Comptroller to Specification 801,277.
Patent GB-1133637-A (GB)
Title: An improved nut fastener for use with sandwich type panels
Inventor: ROHE WILLIAM
IPC: F16B5/02
Filed: 1966-08-31
Abstract: 1,133,637. Screw-sockets &c. SHUR-LOK CORP. 31 Aug., 1966; No. 38852/66. Addition to 876,106. Heading F2H. A nut fastener as described and claimed in Specification 876, 106, wherein the inner head of the shell is closed by a closure cap (31, Fig. 3, not shown), of sheet material having a lip (33) closed around the inner head. The outer head of the shell may have a shallow peripheral groove (52) closely adjacent its outer face and a frustoconical expander mandrel (51) operative on a skin sheet of the panel at the margin of the aperture therein to expand it until it can snap into the annular groove. The outer head of the shell may also have a plurality of small peripheral projections (61, Fig. 5, not shown), adapted, under pressure, to become embedded in a skin sheet of the panel at the margin of the aperture. The outer head may be also formed with a port (25, Fig. 1, not shown), through which the cement is injected in liquid form during the installation of the fastener. The internal screw thread of the floating nut may have a thread locking section (43) produced by local inward deformation of the body (41). In a modification of the nut fastener described and claimed in Specification 876,106, the inner head of the shell is closed by a closure cap C of sheet material retained by an inturned skirt 71 on the shell which engages the roughened or indented periphery of a flange 75 on the cap and the closure cap has a non-circular portion 74 co-operating with a non-circular portion 72 on the nut to limit rotation of the nut with respect to the shell.
Patent GB-1020139-A (GB)
Title: Improvements in or relating to loading arms for drawing mechanisms of spinning machines
Inventor: STAHLECKER FRITZ
IPC: D01H5/56
Filed: 1964-09-24
Abstract: 1,020,139. Drafting apparatus. SPINDELFABRIK SUSSEN, SCHURR, STAHLECKER & GRILL, G.m.b.H. Sept. 24, 1964, No. 38996/64. Heading D1D. A drafting roller loading arm 2 rotatable about a shaft 1 is lockable in its operative position by a locking lever 4 pivoted on the loading arm at 3. The locking arm 4 carries a pin 5 which, on rotation of the loading arm about pivot 3, moves in arcuate slots 2<SP>1</SP> in arm 2; in addition pin 5 carries a roller 6 such that when the loading and locking arms are in their operative positions (i.e. as in Fig. 1) the roller engages a recess 13<SP>1</SP> in an adjustable lever 12 to prevent the loading arm rising. Lever 12 is pivotable at 11 on a U-shaped bracket 7 clamped on shaft 1 by a bolt 8 and its position and thus the inclination of the loading arm 2 is adjustable by means of a screw 14 threaded through the lever and bearing against a flat 10 on the shaft 1, adjustable wedges, eccentrics or bolts may be used in place of screw 14. Projections 12<SP>1</SP>,1211 are formed on lever 12 to provide limit stops in the adjustment of the lever 12. On raising locking arm 4 increased pressure is initially met due to roller 6 passing over projections 131<SP>1</SP>; subsequently pin 5 reaches the end of slots 2<SP>1</SP> and lifts loading arm 2 as shown in Fig. 6 (not shown). In this position a leaf spring 16 engages the pivot 3 to hold arm 2 in the raised position. If arm 4 is pressed into the position shown in the chain-dot lines in Fig. 6 roller 6 engages a surface 131<SP>11</SP> on lever 12 and loading arm 2 is thus locked in the raised position shown. A cover 17 of spring steel or synthetic material may be provided.
Patent GB-1193971-A (GB)
Title: Improvements in or relating to Hinge Joints
Inventor: PICKARD PAUL ROBERT
IPC: A47C1/027
Filed: 1966-09-02
Abstract: 1,193,971. Hinge joint. WILMOT-BREEDEN Ltd. 5 Sept., 1967 [2 Sept., 1966], No. 39231/66. Heading E2F. A hinge joint which may be used with a reclining seat back of a motor vehicle comprises a backplate 1 fitted with screw holes 2 for attachment to the seat base and a hinge arm 3 for attachment to the seat back. A torsion main spring (4) (not shown) is provided to counterbalance the weight of the seat back during adjustment. Two pawl levers 5 are pivotally mounted at 6 on the backplate and engage a fixed locking formation 7 provided by an internally serrated looking ring 8. A pawl operating member 10 in the form of a slide of truncated wedge shape engages the pawl levers to urge them into locking engagement and may be moved in a manner to free the pawls and allow hinge movement by a manually operated release member 27.
Patent GB-1420278-A (GB)
Title: Motor fan device for vacuum cleaners
IPC: A47L5/22
Filed: 1973-08-20
Abstract: 1420278 Centrifugal fans GENERAL SIGNAL CORP 20 Aug 1973 [18 Aug 1972] 39294/73 Heading F1C [Also in Division A4] A motor fan device particularly for use in a suction cleaner comprises a housing 10 divided by a baffle plate 62 into two compartments, a motor M in one compartment driving two fan assemblies in the other, one fan assembly having an impeller 30 adjacent the baffle 62 providing a motor cooling air-flow, and the other, comprising e.g. two impellers 34 and 36 providing a working air-flow the axial component of which is oppisite that of the motor cooling air, the baffle 62 having an aperture 62A adjacent the inlet of the impeller 30 and dimensioned so as to produce in a common discharge zone 63 for the two fan assemblies a higher velocity for the air-flow due to the motor cooling fan assembly than that due to the other fan assembly whereby to aid in keeping the respective air-flows effectively isolated, and a common exhaust outlet 58B for the two air-flows. Louvres (57), Figs. 2 and 3 (not shown) are provided in the outlet 58B.
Patent GB-342091-A (GB)
Title: Improvements in calendars or show cards
IPC: B42D5/04
Filed: 1929-12-24
Abstract: 342,091. Show cards. GAUNT, C. F., Warstone Parade Works, Birmingham. Dec. 24, 1929, No. 39375/29 and 579/30. [Class 3 (i).] Rotary hinged leaves and the like.-A calendar or show card with reversible sheets mounted on one or more carriers or supports has the carriers pivoted or otherwise mounted on a backing member from which they can be moved clear to permit of reversal of the sheets, the cards being shorter than the distance between their points of attachment to the carriers and the point at which the carriers are hinged. In one form as shown in Figs. 1 and 2, a backing member 1 of sheet metal or other material is provided with a clip 2 forming a bearing for a wire frame or carrier 4 on which is mounted a tubular ring or loop 5 supporting date sheets 6. The carrier and sheets normally lie in close proximity to.the backing being retained in this position by a spring clip 8 secured to the backing. Endwise movement of the sheets is prevented by bending the upper end 7 of the carrier 4. In modification, Fig. 3, two carriers 4 are provided and spring clips 10 with ears 11 are adapted to hold the carriers and sheets in position. In another form. Fig. 5, the carrier 4 is provided with semicircular loops 13 on which the sheets are mounted. These loops co-operating with apertures 14 in the backing to hold the carrier and sheet in position. In another form, Fig. 7, the backing 1 is provided with a plurality of hinged strip members 16 bent as shown at 20 to lie horizontally when released from corresponding apertures 14 in the backing. Specification 320,432, [Class 3 (i), Advertising and displaying apparatus, Moving &c.], is referred to.
Patent GB-999942-A (GB)
Title: Improvements in oil-fired cooking stoves
IPC: F23C99/00
Filed: 1960-11-18
Abstract: 999,942. Stoves. M. S. STEVENS. Nov. 17, 1961 [Nov. 18, 1960], No. 39804/60. Heading F4W. In an oil-fired cooking stove 10 in which hot gases, from a burner 18 fed with oil through a vaporizer 16, circulate beneath hot-plates and around a boiler and/or oven, and in which the burner air is supplied through a casing 14 containing a draught assisting fan and its electric motor, a principal opening 22 in this casing is adjustable in area by means of a metal plate 24 pivoted at 26. The cooking stove 10 carries on its front a burner assembly 12 having a canopy frame 48, and comprising the vaporizer 16 covered with fire-clay 42, and the burner 18 housed in a casing 20. The metal plate 24 has a handle 28, and the pivot 26 is so positioned that the plate 24 is set to allow medium burning rate when hanging freely. A spring washer provides friction at the pivot. To prevent vibration of the plate, it is pressed against the rim of opening 22 by passing the handle 28 under a metal bridge 32 which has an arcuate slot through which passes a set screw 34 from the handle, the latter being clamped by a wing nut 40. An asbestos sheet 44 reduces heat loss from the burner and protects the fan motor.
Patent GB-977140-A (GB)
Title: Cooling systems for electron discharge devices
IPC: H01J7/24
Filed: 1962-10-22
Abstract: 977,140. Discharge apparatus. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Oct. 22, 1962 [Oct. 20, 1961], No. 39819/62. Heading H1D. A cooling arrangement for the anode 2 of a high-power electron tube 1 comprises a thermal screen 3 provided with corrugations, fins or grooves and forming a tightly sealed enclosure around the anode 2, the enclosure being filled with a non-oxidizing fluid having good mobility so that heat is transferred from the anode 2 to the screen 3 by convection; a jacket 5 surrounding the screen 3 and provided with an inlet 6 and an outlet 7 so as to allow a coolant to be circulated through the jacket 5 thus removing the heat from the screen by conduction. The fluid in the screen 3 may be hydrogen or liquid sodium or liquid potassium whilst the circulating coolant in the jacket 5 may be water or air or an evaporative system may be used in which the screen 3 is placed in a vessel of water.
Patent GB-911863-A (GB)
Title: Improvements in or relating to charge/discharge systems for gas-cooled nuclear reactors
Inventor: AYRE JAMES LEWIS
IPC: G21C19/06
Filed: 1959-11-25
Abstract: 911,863. Handling fuel elements. SIMONCARVES Ltd., and GENERAL ELECTRIC CO. Ltd. Nov. 21, 1960 [Nov. 25, 1959], No. 40037/59. Class 39 (4). A fuel element charge/discharge system for a gas-cooled reactor wherein during charging and discharging whilst the reactor is operating fuel elements are at all times in a gas flow path and present a constant impedance to the gas flow. As shown in Fig. 1, the reactor core 1 in a pressure vessel 4 has a number of fuel element channels 2 (only one shown), the coolant gas passing upwardly over the fuel elements 3 through a pipe 5 to a heat exchanger 7 containing a blower, the gas returning through a pipe 6. To refuel a channel whilst the reactor is on load a movable charging vessel 10 is connected to the channel by a charge tube 13, a standpipe (not shown) normally surrounding the tube and being sealed at its ends to the vessels 4, 10. The tube 13 extends through the centre of a magazine 11 having fuel storage tubes 14, a further tube 15 connecting each of the tubes 14 in turn to the vessel 4 as the magazine is rotated. In operation, the coolant gas in the channel 2 being serviced by the grab 12 flows through the tubes 13, 14 and returns to the pipe 5 via tube 15 and the upper part of the vessel 4. Each tube 14 may contain all the elements 3 belonging to one channel 2 whereby a constant impedance is presented to the gas flow. In a modified system, Figs. 4, 5, the gas returns to the vessel 4 through the annular space between the charge tube 13 and a standpipe 18 and the charge tube is outside the magazine 11. A gas circuit 24 connected to that particular tube 14 from or into which fuel elements 3 are being drawn contains a blower 26 and an evaporative cooler 27. The blower 26 may be controlled to compensate for the impedance of the grab 12. A further circuit 19 containing a blower 20 and gas-air heat exchanger 23 is connected through a manifold 22 to the upper ends of certain of the tubes 14 containing discharged fuel elements and serves to cool the magazine. The fuel elements in the tube 14 which is about to be brought into the charging position may be pre-heated or cooled by a circuit 28 containing a blower 29, heater 30 and cooler 31. Specification 789,022 is referred to. Reference has been directed by the Comptroller to Specification 883,901.
Patent GB-953933-A (GB)
Title: Internal combustion engines with exhaust-gas turbosuperchargers
IPC: F01D17/14
Filed: 1961-11-09
Abstract: 953,933. Exhaust gas turbo-superchargers. SULZER FRERES S. A. Nov. 9, 1961 [Dec. 2, 1960], No. 40235/61. Headings F1B and F1G. An internal combustion engine comprises an exhaust gas turbine-driven supercharger, at least two separate exhaust pipes leading to separate nozzle segments of the turbine, and a change-over valve disposed adjacent the turbine, the valve being arranged to close at least one of the exhaust pipes under no-load or low-load conditions while at the same time opening a passage which interconnects the exhaust pipes whereby the exhaust gases of at least two exhaust pipes are directed to the same nozzle segment. The engine shown is a Diesel engine which comprises two exhaust pipes 2, 3 through which gases are directed to an inlet housing 6 of the turbo-supercharger unit which comprises a turbine 20 driving a blower 23. The housing 6 is divided into two ducts 2, 3 by means of a partition, the ducts connecting with separate inlet nozzle segments 18 of the turbine. An opening 7 is provided in the partition and has associated therewith a flap valve 8 so that at low loads the flap is disposed in the full-line position and the exhaust gases from the two exhaust pipes 2, 3 are directed into one nozzle segment whereas at full-load, the flap is disposed in the chaindotted position so as to close the opening 7 whereby the gases from the exhaust pipes are directed into the two separate nozzle segments. The flap valve is controlled by means of a spring-loaded piston 14 which is normally positioned by the spring so as to place the valve in the chain-dotted position to close the opening 7. When the solenoid-controlled valve 15 is actuated however, air under pressure is directed to the upper side of the piston 14 and the flap valve is moved to its full-line position whereby exhaust gases from the passage 3 are directed into the passage 2. A suitable control lever is shown in Fig. 4, the lever in the position B closing the circuit through lines 33 whereby the solenoid valve 15 is moved to the position shown in Fig. 2. The circuit may be closed over a range of movement of the lever 30, or a time-switch may be incorporated so that the flap valve is kept in the full-line position for a predetermined time.
Patent GB-1254025-A (GB)
Title: Improvements in or relating to sealing arrangements between tubular members
Inventor: HEAP JOHN ARTHUR
IPC: F16L47/22
Filed: 1969-08-13
Abstract: 1,254,025. Pipe and rod joints. GENERAL ELECTRIC CO. Ltd. 23 June, 1970 [13 Aug., 1969], No. 40420/69. Heading F2G. [Also in Division H2] An arrangement for sealing a cable member 3 coaxially within a gland member 1 comprises a preformed sleeve 6 of shrinkable material coaxially surrounding the members 1, 3 and having a narrow end 7 shrunk on to and adhesively sealed to part of the cable 3, and a wider end 8 shrunk on to and adhesively sealed to at least part of the gland 1. A sealing arrangement according to the invention may be made by filling the space between the members 1, 3 with a hardenable adhesive 4, applying adhesive material to the external surfaces of said members 1 and 3 which are to be sealed to the sleeve 6, positioning the sleeve 6, and heat shrinking it into intimate contact with the coated surfaces. The internal surface of the sleeve 6 may also be coated with adhesive prior to shrinking. A clamp 10, which may be secured to the memberl, may be placed around the narrow end 7 of the sleeve 6 and separated therefrom with packing material 11. The sleeve 6 is preferably of an irradiated cross-linked plastics material (e.g. polyethylene) and may have narrower and wider portions prior to shrinking. The hardenable material 4 may be an epoxy resin. Where the cable 3 is plastics sheathed the surface within the member 1 and within narrow region 7 may be oxidized (e.g. by a flame) prior to assembling the joint.
Patent GB-1162964-A (GB)
Title: Treatment of Textile Materials
Inventor: PIRIE HAROLD
IPC: D06M23/10
Filed: 1967-09-06
Abstract: 1,162,964. Scouring; dyeing. IMPERIAL CHEMICAL INDUSTRIES Ltd. 19 Aug., 1968 [6 Sept., 1967], No. 40758/67. Heading D1P. Polyester textile material is treated continuously by scouring with a boiling organic solvent and passing the solvent-laden textile material into an inert organic liquid at elevated temperature to flash off the solvent. The solvent may be trichlorethylene, perchlorethylene, or trichlortrifluorethane. The inert liquid may be diethylene or dipropylene glycol. The material may be treated with a disperse dye at the same time as the inert liquid or after an intermediate washing with water. Excess dye is removed by washing with water and, finally, remaining inert liquid is removed.
Patent GB-1067957-A (GB)
Title: Process for the production of olefins
IPC: C07C4/02
Filed: 1964-10-07
Abstract: Olefines, including C10+ olefines, are obtained from an n-paraffin feedstock by oxidative cracking by mixing with oxygen in a weight ratio to hydrocarbon of 0.014-0.23: 1, preheating to 20-150 DEG  C. below reaction temperature, introducing tangentially into a reactor containing no solids and reacting at 500-750 DEG  C. for 0.02-1 second.  Suitable feeds contain 12-40 carbon atoms, e.g. gas oil, crude oils, petrolatum, wax or n-hexadecane; steam or nitrogen may be added to assist vaporization.  Products boiling above the desired products may be recycled.
Patent GB-1199079-A (GB)
Title: Cylinder Containing a Piston having a Groove Containing a Piston Ring
Inventor: BERGSTROEM JOHAN GUNNAR
IPC: F16J1/00
Filed: 1967-09-07
Abstract: 1,199,079. Fuel elements. ATOMENERGI A.B. 7 Sept., 1967 [8 Sept., 1966], No. 40985/67. Heading G6C. [Also in Division F2] A piston for a fuel element tube in a nuclear reactor comprises a main body 1a and a lower annular member 2 connected by narrow members 4 which allow access to the piston ring groove from the interior of the piston to prevent the deposit of solid particles in the groove during use. A locknut 9 on the lower annular member engages a spring washer 6 for the piston ring 5 which may be formed as a metal spring-ring having overlapping ends.