baber/WOPTO huggingface dataset:
Patent GB-1181400-A (GB)
Title: Improvements in Recombination Systems for Sealed Secondary Batteries and Batteries Incorporating Them
IPC: H01M10/52
Filed: 1967-12-19
Abstract: 1,181,400. Hydrogen-oxygen recombination system. OLDHAM & SON Ltd. 19 Dec., 1967 [30 Dec., 1966], No. 57672/67. Heading H1B. A hydrogen-oxygen recombination means for a sealed accumulator comprises a fluid chamber having a port through which fluid communication is effected with the interior of the accumulator, hydrogen-oxygen recombination effecting means in said chamber, an externally actuatable valve capable of controlling the passage of gas and water through said port and flash-suppressing means capable of controlling the rate at which the gases contact the recombinationeffecting means. A typical embodiment, Fig. 2, comprises a fluid chamber 32 bolted to the underside of battery lid 21, the joint being sealed by elastomeric gasket 42. The recombination means comprises pellets of palladinized alumina 63 affixed to carbon resistance heater 61. The flash suppressing means 65 may comprise 12 mesh particles of rod or bead shape surrounding the catalyst to a depth of -inch. The particles may be in a foraminous container and may be coated with P.T.F.E. Valve 52 is normally closed by spring 35 but on insertion in the recharging rack (not shown) it is forced open by engagement with socket 55. In the embodiment shown in Fig. 4 the recombination means is a heated wire 77 and the flash suppressing means is a gas-permeable membrane 75 which minimizes the pressure difference across the valve. The membrane may be of fluorinated vinyl polymer. In Fig. 6 (not shown), is illustrated a device similar to that in Fig. 2 but arranged for use with two adjacent cells of a multi-cell accumulator. Two ports 84 and 85 are controlled by valves 91 and 92 activated by pressing a single plunger against a spring. The valves are opened and closed by rotation of a cam 100. In the embodiment illustrated in Fig. 8 the top of the accumulator 121 is formed into a screw collar 105 surrounding the fluid passage 107. During normal use valve 108 activated by spring 110 closes the passage. For charging, plunger 130 is screwed upwards before housing 120 is screwed on to collar 105. Plunger 130 is then screwed down, opening valve 108 and allowing recombination means 125 to function.
Patent GB-1318018-A (GB)
Title: Oversized abrasive coated products
IPC: B24D11/00
Filed: 1971-12-14
Abstract: 1318018 Coated flexible abrasives CARBORUNDUM CO 14 Dec 1971 [21 Dec 1970] 57960/71 Heading C4V A flexible abrasive coated product comprises a flexible backing, a making adhesive coat having a plurality of abrasive grains embedded therein, a sandsize adhesive over the abrasive grain and an oversize coat of a highly chlorinated paraffin wax having a chain length of at least 20 carbon atoms, which contains more than 60% chlorine and has a melting point of at least 80 C. The making and sandsizing coats are preferably resins such as phenol-formaldehyde condensates and the oversize coat is preferably applied in an amount of at least 0À5 lbs/ream.
Patent GB-1207828-A (GB)
Title: Improvements in or relating to parachutes
Inventor: COLBOURNE PHILIP JAMES
IPC: B64D17/00
Filed: 1967-12-22
Abstract: 1,207,828. Parachute pack. MINISTER OF TECHNOLOGY. 20 Dec., 1968 [22 Dec., 1967], No. 58364/67. Heading B7G. A method of stowing rigging lines to eliminate tangling consists of taking successive lengths of rigging lines and twisting the ends relative to one another to form a robe-like bundle 1, then inserting each end of the bundle 11 into a becket in one of the two series of beckets 16 and 17 on each side of the pack 10. The rigging lines of adjacent bundles are twisted in opposite senses. In a further embodiment the bundles are equal in length to approximately twice the width of the pack 10 and each bundle has its central region twisted relative to its end through at least three complete turns. Then the resulting bundle is folded back upon itself before inserting the central region in a becket on one side and the ends in beckets on the other side.
Patent GB-1247000-A (GB)
Title: Lubrication system for high temperature engine
IPC: F01D25/18
Filed: 1968-12-10
Abstract: 1,247,000. 000. Gas turbine engines - lubrication. ENERGY TRANSFORMATION CORP. Dec.10, 1968 [Dec.11, 1967], No.58713/68. Heading F1G. [Also in Division F2] The invention relates to a method of operating a gas turbine engine having a rotary shaft supported in bearings comprising the steps. (i) applying grease to the bearings (ii) running the engine whereby high combustion heat is generated. (iii) switching of the engine and (iv) maintaining rotation of the shaft after switch-off for a time sufficient to keep the shaft cooled to such a temperature that the grease is not decomposed and whereby the grease forms a congealed coating on the surfaces of the bearings. The gas turbine engine shown comprises a shaft 3 supported in bearings 15, 16 within a casing 28, a centrifugal compressor impeller 5 and an inward radial flow turbine rotor 4 being mounted back-to-back at one end of the shaft. An electric generator comprising a rotor 7a is mounted on a shaft 3b which is connected to the shaft 3 by a coupling 30, the generator being capable of operating as a motor when supplied with current from an external source. Air is drawn into the compressor through inlet 8 and the pressurized air discharges to combustion equipment which comprises an annular flame tube 9. The gases discharge from the flame tube on to the turbine rotor, the exhaust gases discharging through outlet 14. The spaces 21, 22, 23, 24 adjacent the shaft bearings 15, 16 are packed with grease, the space 24 being closed by a cover-plate 26. The electric generator 7 is connected through the contacts 34 of a double-pole switch 33 to an electric load 37; alternatively through contacts 35 to an external source of current 38. The switch is operable by an actuator 36. The engine is started by supplying current to the machine 7 which operates as a starter motor. When the engine is running the switch 33 is operated so that current is now supplied from the generator to the load 37. When the engine is switched off, the switch is again operated so that the machine 7 is again driven as a motor whereby the compressor and turbine assembly is rotated so that the compressor continues to supply air to the combustion equipment and turbine; this flow of cooling air adjacent the shaft 3 prevents the flow of residual heat from the turbine assembly to the shaft, thus preventing the grease from being subjected to a temperature at which it would become decomposed; as the grease cools it forms a coating on the bearing surfaces so preventing rusting or corrosion. The assembly may be a stand-by plant which operates only infrequently.
Patent GB-1240750-A (GB)
Title: Improvements in or relating to the production of elongated members of mainly lignocellulose material
IPC: D21J3/00
Filed: 1969-12-03
Abstract: 1,240,750. Moulding tubes from pulp. PLATMANUFAKTUR A.B. 3 Dec., 1969 4 Dec., 1968], No. 59107/69. Heading B5A. [Also in Division F2] Elongated members of lignocellulose material are produced by axially compressing a suspension of lignocellulose material in a dewatering chamber to a solids content of at least 15% and further shaping this preformed member. The member formed is preferably tubular, is compressed radially to not more than 40% of its original thickness in the further shaping stages and is then cut into desired lengths. The suspension 55 is held in chamber 61 and is fed from a storage chamber via feed pipe 57 and non-return valve 56. The suspension is forced by piston 51 into the vertical dewatering chamber 67 defined by tubes 58, 59 and is dewatered therein by axial pressure from the piston, the water passing through bores in tube 58, 59. The separation between the tubes decreases upwards and the lignocellulose material is radially compressed as it is forced upwards. The lignocellulose tube formed is cut to size after it leaves the mould and may be further dewatered by compression in a perforated tube using a tapered mandrel or by heating. In an alternative embodiment the suspension is supplied to the mould cavity from a collar from which the suspension is discharged tangentially.
Patent GB-1275656-A (GB)
Title: Nuclear reactor control rods and drive rods therefor
IPC: G21C7/12
Filed: 1969-12-04
Abstract: 1275656 Rod couplings SIEMENS AG 4 Dec 1968 [7 Dec 1968] 59374/69 Heading F2G [Also in Divisions E2 and G4-G6] A combination of a nuclear reactor control rod 2 and drive rod 3 comprises a coupling formed by an inverted cup-shaped enlarged portion 31 with two inwardly projecting lugs 32 at the lower and of the drive rod 3 and a mushroomshaped head 4 with two diametrically opposed slots 41 on an upper end neck portion of the control rod 2. For the coupling operation, the drive rod 3 is put into an angular position such that the lugs are in register with the slots 41 and the cup portion 31 of the drive rod 3 is pushed over the head 4 of the control rod 2, whereupon the drive rod 3 is turned counter-clockwise until the lugs 32 encounter the flanks of bosses 21 on the neck portion of the control rod 2. The drive rod 3 is then pulled upwards as the lugs 32 engage in recesses 42 in the head 4, as shown in Fig. 1. This operation is performed only when the control rod is fully inserted in the reactor core. The control rod 2 is normally prevented from rotating by bosses 22 which engage in the corners of a guide tube 1, by when the control rod is fully inserted, the bosses 22 are adjacent windows 11 in the guide tube 1 into which they project on rotation of the control rod. The drive rod 3 is also normally prevented from rotation. When the control rod 2 is uncoupled from the drive rod 3, it is held fast completely within the reactor core by the latching of the bosses 22 in the windows 11.
Patent GB-1370820-A (GB)
Title: Hydrostatic power transmission system
IPC: B60K17/10
Filed: 1971-12-23
Abstract: 1370820 Hydrostatic transmission NISSAN MOTOR CO Ltd 23 Dec 1971 [28 Dec 1970] 59869/71 Heading F2C A hydrostatic transmission for a motor vehicle comprises a first variable displacement radial piston unit 1-3, a second fixed displacement radial piston unit 14 and a third fixed or variable radial piston unit 15, the cylinder blocks 16, 26 of the first and second units being fast with an input shaft 10 whilst the cam ring 29 of the second unit 14 and the cylinder block 31 of the third unit are fast with an output shaft 11. As shown with a variable displacement third unit 15 neutral is provided by arranging the displacement of the first unit 13 to be equal and opposite to the displacement of the second unit 14 whilst the third unit 15 is at maximum displacement. For forward drive the displacement of the first unit 13 is decreased. When the displacement of the first unit is zero further increase in output speed is obtained by reducing the displacement of the third unit 15. Direct drive is obtained when the displacements of both the first and third units are zero. Overdrive is obtained by maintaining the displacement of the third unit 15 at zero whilst increasing the displacement of the first unit in the same direction as the displacement of the second unit 14. For reverse drive the displacement of the first unit 13 is greater than and opposite to the displacement of the second unit 14 whilst the third unit 15 is at maximum displacement. During direct drive valve pistons 76, 85 are moved right and left respectively to block ducts 57, 68 to the first and third units 13, 15 and thus prevent noise due to pulsating pressure liquid and leakage. Make up liquid is supplied to the system through ducts 71a, 71b and control pressure liquid is supplied to the valves 76, 85 through ducts 81, 90. In Fig. 3 (not shown) the third unit has a fixed displacement and neutral is provided by arranging the displacement of the first unit (13) to be equal and opposite to the displacement of the second unit (14). For forward drive the displacement of the first unit (13) is reduced and the output speed increases as the displacement of the first unit decreases. When the displacement of the first unit (13) is zero a further increase in output speed is obtained by increasing the displacement of the first unit (13) in the same direction as the displacement of the second unit (14). When the displacement of the first unit equals that of the third unit a direct drive is provided and still further increase in the displacement of the first unit provides an overdrive ratio. For reverse drive the displacement of the first unit (13) is greater than and in the opposite direction to-the displacement of the second unit (14).
Patent GB-1381604-A (GB)
Title: Gasket structure
IPC: B01D61/50
Filed: 1971-12-23
Abstract: 1381604 Gaskets for filter-press electrolytic cells ASAHI KASEI KOGYO KK 23 Dec 1971 [23 Dec 1970] 59890/71 Heading C7B  A gasket combination for use in a filter press type electrolytic or electrodialytic cell comprises three gasket structures, the central structure being essentially as shown in Fig.3, and the outer structures being essentially as shown in Fig.1, each having a central opening, which together form a cell compartment, and holes which together form liquid passages for inlet and outlet of electrolyte, the gasket structures each being formed of a combination of hard, incompressible parts and soft compressible parts. In a bi-polar diaphragm cell alternating electrodes and diaphragms are separated by such gasket combinations, the liquid passages being continued through holes in the electrodes and diaphragms, and the arrangement being such as to provide separate liquid passages for anolyte and catholyte. The bi-polar electrodes may be of Ti plated with Pt and Ni on cathodic and anodic faces respectively.
Patent GB-1368249-A (GB)
Title: Rotary hydraulic machines
IPC: F01B1/06
Filed: 1970-12-18
Abstract: 1368249 Hydraulic reciprocating motors JOSEPH LUCAS (INDUSTRIES) Ltd 8 Dec 1971 [18 Dec 1970] 60179/70 Heading F1A In an hydraulic motor comprising a casing 10 containing a rotary cylinder block 14 having radial. pistons 16 which co-operate with an eccentric cam ring 17, a spring-loaded piston element 23 urges the cam ring towards its maximum eccentricity position whereas exhaust liquid passing through the casing is centrifuged by the rotor's rotation and acts on the piston element to decrease the eccentricity. Thus at start-up the piston strokes are at a maximum to give a high starting torque, the increasing speed causing a stroke reduction and a consequential increase in speed up to that limited by the load. The block rotates on a fixed pintle 13 having an inlet and an outlet port therein, the latter communicating with the interior of the casing. Support rings 20, 21 for the cam ring 17 fit within a perforated cylindrical member 22 and this member 22 is urged towards an eccentric position by the piston element 23.
Patent GB-1261976-A (GB)
Title: Improvements in or relating to devices for the removal of viscous liquids from vacuum operating equipment
IPC: F04C13/00
Filed: 1969-12-10
Abstract: 1,261,976. Meshing screw pump. SNIA VISCOSA SOC. NAZIONALE INDUSTRIA APPLICAZIONI VISCOSA. Dec.10, 1969 [Dec.12, 1968], No. 60237 /69. Heading F1F. A screw pump for removing a viscous liquid from a vessel 10 under vacuum, comprises a driving screw 22 meshing with a pair of driven screws 23 mounted in a casing 21 which is fitted within a cylindrical member 20 inserted in a neck 15 in the base of the vessel 10, the driving screw 22 terminating at the base of the vessel 10, whilst the driven screws 23 have end portions 23<SP>1</SP> which extend into the liquid 12 being pumped. The cylindrical member 20 extends into the vessel 10 and has a series of circumferential openings 30 adjacent the end portions 23<SP>1</SP> of screws 23 which bear axially against a screw cap 31 fitted to the end of member 20, the cap being provided with openings (32) Figs. 2, 3 (not shown) for the escape of gas bubbles. The vessel 10 and the neck 15 are surrounded by a jacket 14 through which a heating liquid, e. g. diphenyl, is circulated. The pump outlet chamber 40 and duct 42 are also surrounded by a heating jacket 51, 52. The driving screw 22 is connected to a drive shaft 25 supported in a housing 45, 48 by means of a stuffing box 49 comprising a number of annular packing glands of e.g. asbestos fibres. A liquid buffer which does not react or mix with the pumped liquid, is supplied under pressure to the stuffing box 49.
Patent GB-1365166-A (GB)
Title: Reluctance machine having equalising windings
Inventor: TOEROEK V
IPC: H02K19/10
Filed: 1971-12-30
Abstract: 1365166 Dynamo-electric machines ALLMANNA SVENSKA ELEKTRISKA AB 30 Dec 1971 [31 Dec 1970] 60671/71 Heading H2A In a reluctance machine including a rotor comprising a number of pole pairs and wherein the angular position of one pole of a pair relative to its neighbouring stator poles is at all times the same as that of the other pole of the pair, at least one rotor pole pair is provided with a short-circuited equalizing winding comprising one coil round each pole of the pair, the coils being series connected so that their induced voltages counteract each other to compensate for magnetic inbalance in the machine. The rotor shown comprises four poles 4a, 4b, 4c and 4d and a short-circuited winding for poles 4a and 4b, the winding being formed by slitting a conductive cylinder alternately from its opposite ends so that it fits round the rotor poles. Any imbalance in the fluxes in poles 4a and 4b will cause a resultant current to flow in the short circuited winding, thus reducing the flux in one pole and increasing it in the other.
Patent GB-1256380-A (GB)
Title: Improvements in or relating to machines for wrapping goods
IPC: B65B9/13
Filed: 1969-12-12
Abstract: 1,256,380. Wrapping machines. INTRA MASCHINENBAU-UND HANDELS G.m.b.H. 12 Dec., 1969 [14 Dec., 1968], No. 60687/69. Heading B8C. In a wrapping machine, a collapsed tubular foil 7 is erected by diverging suction belts 30 and is drawn over a stack of articles 20 on a tray 21 by parallel suction belts 32. The belts 30, 32 are apertured and run over stationary suction boxes 29, 31. The foil 7 is pulled off a reel 6 by driven rollers 12, is tensioned by a floating roller 13, and is guided by roller 15 and guide plates 22, 23 through a welding and cutting station 17. After wrapping the stack may be conveyed to a heater (not shown) for heat shrinking of the foil 7.
Patent GB-1328665-A (GB)
Title: Tone signalling apparatus
IPC: G08C19/14
Filed: 1970-12-22
Abstract: 1328665 Distinguishing tones in automatic exchange systems; transistor oscillators and amplifiers FANTRON CORP 22 Dec 1970 [24 Dec 1969] 60868/70 Headings H3T H4K and H4R [Also in Division G4]  A tone signalling arrangement has a receiver which includes a plurality of sequentially operable bridged-T filter circuits and a plurality of gate circuits each of which is connected to and operated by a detector circuit connected to each filter circuit where each gate circuit is operable to gate the received signal to the next filter circuit in the sequence. The transmitter includes a plurality of tone generators each qperating at a different frequency and in a timed sequence for providing a signal consisting of a series of tones. The arrangement is stated to be used in telegraph and telemetry applications as well as in telephone systems where it may be used for signalling between subscriber and exchange or between exchange operators. Receiver circuit (Fig. 5).-The received signal 198 is limited by amplifier 201 and passes to detector 212 which includes an active bridged-T filter circuit 216. The filter output signal passes to a detector circuit 232 and thence to gate circuit 245 where transistor 260 is caused to be non-conducting when the tone ceases and remains thus until capacitor 250 is re-charged. By transistor 260 becoming non-conductive the earth potential is removed from lead 262 and thus from the input to second filter circuit 265 which now receives the tone signal and causes an output signal to be extended through the detector 283. Since this channel is now the last channel, i.e. only 2 tones from the signal, an output circuit 296 is provided which includes a relay 300 which operates on receipt of the signal from detector circuit 283. An output signal causes thyristor 346 to conduct and switch on lamp 347 causing a warbler circuit 354, consisting of a free running multivibrator and unijunction transistor 368 which forms a relaxation oscillator, to operate and give an output on the high and low audio outputs 375, 374. Tone generator (Figs. 1, 2, 3, not shown).-The generator consists of a pair of bridged-T oscillator circuits (10, 34) each of whose operating frequency can be altered by inserting different values of resistance in the leg of one T (178- 197, Fig. 3) through the frequency selectors (149-152). Tone timers 103, 126 control the duration and sequence of tone transmission and a gap timer separates the two tones. A switch may be employed to eliminate the gap between the tones and the time constants of the tone timer circuits can be altered to give a different speed of operation. It is stated that micro-circuitry techniques may be used or the circuits manufactured on substrates.
Patent GB-775496-A (GB)
Abstract: 775,496. Moulds; cores and core-boxes. GLOW-WORM BOILERS, Ltd. Aug. 24, 1955 [Aug. 27, 1954], No. 24916/54. Class 83 (1). Screw-threaded holes are formed in castings by locating a socket in the mould and inserting a member carrying a sand-core. into the socket, the sand-core being shaped to form the screwthreaded hole in the casting operation. The core g is formed on a boss f in a three-part corebox h, and supported in the mould e in a baked sand-socket d. The socket d is formed on a boss c carried by a member b, Fig. 1, which is slidably secured to the pattern a. The core may be inserted direct into the socket without the boss f.
Patent GB-2029259-A (GB)
Title: Air cleaner assembly
IPC: B03C3/30
Filed: 1978-09-05
Abstract: An air cleaner assembly of the flow through type has a central element formed of one or more layers, (11, 12) of rubbery synthetic foam material, two series (15, 16) of rigid thermoplastic rods sandwiching the central element, the rods being formed of material, e.g. acrylic resin, capable of developing and holding a positive electrostatic charge upon flow of air past the rods, and first and second air permeable outer sheet elements (21, 22) overlying each of the series of rods and formed of interwoven fibres of synthetic organic resin, such as polypropylene, capable of developing and holding a negative electrostatic charge upon flow of air therethrough. The assembly produces an atmosphere containing increased concentration of negative ions. Suitably, the foam material is a material, e.g. polyurethane foam, capable of developing and holding a positive electrostatic charge upon passage of air therethrough. <IMAGE>
Patent GB-2030363-A (GB)
Title: Electric Switch Contact Adjustment
IPC: H01H1/34
Filed: 1978-09-09
Abstract: A desired clearance gap between the two contacts (14, 15) is obtained by pushing forward the contact 15 against the bias of a spring (20) to produce a gap between the support (16) and the member (15) into which a feeler gauge is introduced. A screw (34) is then loosened and the support (16) is moved so that the two contact members (14, 15) are brought into contact. The screw (34) is then tightened and upon removal of the feeler gauge the desired gap between the contacts (14, 15) is achieved. This arrangement enables an accurate spacing between the contact members to be achieved accurately and readily. <IMAGE>