baber/WOPTO huggingface dataset:
Patent GB-1449491-A (GB)
Title: Fuel injection systems
IPC: G01F1/56
Filed: 1973-08-31
Abstract: 1449491 Electronic fuel injection systems for IC engines ROBERT BOSCH GmbH 31 Aug 1973 [1 Sept 1972] 40992/73 Addition to 1330363 Heading G3N In an I.C. engine electronic fuel injection system as claimed in British Patent Specification 1330363 the air quantity meter 26 is coupled to a variable resistor 27 which provides a control voltage which determines the charging and/or discharging operation of the energy storage device, i.e. an inductor or capacitor, in the switching device 30 which is triggered in synchronism with engine rotation to provide the injection valve opening pulses the control voltage being also fed to a differentiating circuit on whose output appears an acceleration-dependent voltage which is used to determine an extra injection quantity for acceleration enrichment. As shown, the air quantity meter is provided by a baffle flap 26 co-operating with a potentiometer 27, the switching circuit 30, Fig. 2 (not shown) including a capacitor which is charged, in synchronism with pulses LJ from an engine triggered signal generator 17, in dependence upon the voltage output of the meter, and is subsequently discharged to produce pulses, Jo. These pulses are applied to a multiplier stage 40, which is similar to the switching stage 30 and provides increased length pulses Js to an OR gate 50 and to a switching device 61. The device 61 is triggered by the trailing edges of pulses Js to provide prolongation pulses Jr to the OR gate 50. The duration of the pulses Jr is determined by acceleration dependent voltage UH at the output of a differentiator P which receives the voltage output UL of the air quantity meter. The resistor 63 may be made dependent upon the temperature of the engine cooling water or oil so that the prolongation pulse Jr is produced only during the warm-up phase of the engine. The OR gate 50 thus provides pulses Js prolonged by pulses Jr to a power stage 20 for energizing the injectors 11. An additional differentiator 64 may be provided whereby additional injection pulses can be triggered in intervals between the pulses Js. In an alternative arrangement, Figs. 4 and 5 (not shown), the voltage UL is applied via a differentiator to one input of a bi-stable trigger which is triggered when the voltage U L  increases. The other input of the bi-stable trigger is connected to a threshold switching device whose threshold level is made a function of U L  and which is compared with a voltage derived from UL by means of a delay circuit. The threshold device determines the instant of return of the bi-stable trigger to its other state and the output of this trigger is applied to OR gate 50. In a further alternative arrangement, Fig. 6 (not shown), the voltage UH is applied to a switch which controls the damping of a low-pass filter or its limiting frequency. The voltage U L  is applied to a monostable trigger device via this low-pass filter.
Patent GB-924480-A (GB)
Title: Improvements in and relating to the construction of underground dams
Inventor: GALAUP MARIUS
IPC: E02D5/18
Filed: 1960-11-30
Abstract: 924,480. Concrete screen piling. ETUDES ET TRAVAUX DE FONDATIONS. Nov. 30, 1960, No. 41191/60. Class 68 (2). A continuous water-tight underground screen is constructed by hammering into the ground 7 juxtaposed elements 1-6 having tubes 9, extracting the element 1 while injecting screen material 12 (concrete or a mixture, e.g. of clay, cement and sand) from supply pipe 11 to fill the empty space being created by the withdrawal of the element, then successively attaching the supply pipe 11 to, and extracting, the elements 2-6. The pressure of the material ensures that the empty spaces formed by withdrawal of the element are filled as fast as they are formed (as at 12 in Fig. 2) and causes empty spaces near the screen to be filled, as at 12a. When the element 1 is completely withdrawn it is sunk in at 1a and the element 2 withdrawn.
Patent GB-950863-A (GB)
Title: Improvements in or relating to automatic landing systems for aircraft
Inventor: PRIESTLEY ERIC
IPC: G05D1/06
Filed: 1960-11-30
Abstract: 950,863. Aircraft automatic landing systems. ELLIOTT BROS. (LONDON) Ltd. Nov. 30, 1961 [Nov. 30, 1960], No. 41216/60. Drawings to Specification. Heading B7G. An aircraft automatic landing system causes an aircraft to land in three phases, the first phase being a glide path approach under the control of an instrument landing system. In the second phase, during which the aircraft is too near for the instrument landing system to provide accurate information, but too far for, say, a radio altimeter to provide accurate information due to uneven approach terrain, automatic throttle control and pitch control means tend to keep the airspeed and measured pitch angle constant, so that the aircraft flies an extension of the glide path. The third phase is a landing path controlled by a device such as a radio altimeter. The measured pitch angle is derived from a vertical gyro, the output of which is modified by a gravity responsive device such as a pendulous monitoring system, but during the second phase, acceleration and deceleration of the aircraft by the automatic throttle control in response, say, to variation in wind with altitude, give rise to deviation between the true and apparent vertical, and thus to false measured pitch angles. A flight parameter is therefore caused to render the gravity responsive device incorporated during this phase. This may be effected by a radio altimeter, a ground marker beacon, or on rate of change of airspeed or groundspeed above a predetermined value.
Patent GB-1455925-A (GB)
Title: Braking systems for railway inflator adaptor
IPC: B60T13/22
Filed: 1974-09-20
Abstract: 1455925 Track brakes; braking systems; valves KRAMPE & CO FERTIGUNG IN BERGBAUBEDARF GmbH 20 Sept 1974 [17 Oct 1973] 41286/74 Headings F2E and F2F A braking system for a rail vehicle trolley 1 comprises shoes 7 which are moved into braking engagement with a rail 4 under the action of a spring 12 in a working cylinder 10 when fluid pressure is removed from a pressure compartment 13 of the cylinder 10 which removal is normally achieved by actuation of a release valve 14 controlled by centrifugal force; the system also incorporates a minimum pressure valve 18 which responds when the pressure falls below a predetermined minimum value, to release the remaining pressure, and a blocking valve 35 connected in series with the valve 18 and having a plunger 37 arranged to be actuated by one arm 42 of a two-arm lever 43 to close the blocking valve 35, the other arm 45 being disposed adjacent to a connecting socket 46 for a pump lever of a pump 17 for building up the pressure in the compartment 13, the lever 43 being tilted by the pump lever when the latter is inserted into the connecting socket 46 to thereby close the blocking valve 35. The minimum pressure valve 18 comprises a piston 20 slidable in a cylinder 19 and having a rod 22 extending into a bore 23. The bore 23 terminates in an annular seat 25 for a ball 26 which is pressed against rod 22 by a spring 27. The ball 26 is in a duct 29 in communication with the pressure compartment 13 and when the compartment 13 is filled the ball 26 is pressed against seat 25 and the piston 20 is displaced against cup springs 30 arranged between piston 20 and an adjustable cap 32. If the pressure leaks from compartment 13, then when the force exerted on the ball 26 becomes smaller than the spring force of springs 30, the ball 26 lifts off seat 25 so that pressure medium can flow from compartment 13 via a return line 16 to a collecting tank 15. The blocking valve 35 which as shown is an integral unit with valve 18 is disposed in the return line 16. The plunger 37 of the valve 35 has a tip 39 engageable with a lip seal 41 to close off the return line 16 when the pump 17 is actuated by the pump lever. As pressure starts to build up in compartment 13 the minimum pressure valve 18 is closed by pressure acting on surface 47 of piston 20 and shifts the piston 20 against the action of springs 30.
Patent GB-1308494-A (GB)
Title: Semiconductor arrangements
IPC: H01L21/761
Filed: 1970-08-28
Abstract: 1308494 Monolithic circuits SIEMENS AG 28 Aug 1970 [2 Sept 1969] 41441/70 Heading H1K A semi-conductor wafer includes a bipolar transistor, which is isolated from other components in the wafer, and a squeeze resistor formed during the processing steps used to form the base and emitter of the transistor so that it compensates for variations in base width when connected in a feed back path to the base of the transistor. A transistor and associated pinch resistor are shown in Fig. 2. The transistor base 2 and resistor current path 7 are formed from a common epitaxial layer, and the transistor emitter 1 and pinch resistor gate 8 in a common processing step. A suitable interconnection between the resistor and transistor in a two-stage amplifier is described (Fig. 3, not shown).
Patent GB-960789-A (GB)
Title: Pressure vessels
IPC: G21C11/08
Filed: 1962-11-05
Abstract: 960, 789. Reactors. UNITED STATES ATOMIC ENERGY COMMISSION. Nov. 5, 1962 [Nov. 16, 1961], No. 41816/62. Drawings to Specification. Heading G6C. A nuclear reactor pressure vessel is provided with thermal insulation over the internal surface. The insulation is formed of concentric sheets of low carbon steel and stainless steel, spaced to permit the flow of coolant gas, e.g. helium or carbon dioxide. The pressure vessel is immersed in an organic liquid e.g. oil; air or water may also be used. Concentric ducting carries the coolant gas into and from the pressure vessel. The gas enters through the outer duct, passes round the insulation, enters the core at its base and then flows upwards through the core and leaves the vessel through the inner duct. Part of the steel insulation is formed of arcuate plates secured together to permit radial expansion. The tank supporting the pressure vessel coolant has a flexible junction at the vessel to accomodate dimension change. Specifications 887, 954 and 952, 977 are referred to.
Patent GB-1204853-A (GB)
Title: Screws and bolts
Inventor: GIFFORD GUTHRIE WILLIAM
IPC: F16B39/34
Filed: 1966-09-20
Abstract: 1,204,853. Bolt. G. W. GIFFORD. 18 Sept., 1967 [20 Sept., 1966], No. 41947/66. Heading F2H. A screw or a bolt comprises a screw-threaded shank 1, a head at one end of the shank, a boss 4 at the opposite end of the shank and a coating 5 of plastically deformable material e.g. wax on the boss, whereby the screw or bolt can be retained in a complementary threaded hole by engagement of the coating with the hole.
Patent GB-1095064-A (GB)
Title: Variable signal delay apparatus
Inventor: DILLENBERGER WOLFGANG
IPC: H03H11/26
Filed: 1965-10-05
Abstract: 1,095,064. Variable delay apparatus; delay lines. FERNSEH G.m.b.H. Oct. 5, 1965, No. 42255/65. Headings H3U and H4R. A variable delay apparatus which uses a lumped constant delay line with reverse biased diodes 51 to 58 as the shunt capacitors, the potential across which is varied to vary the capacitance of the diodes and therefore the delay of the line, has variable impedance input and output circuits for the line which are varied by the delay control voltage, or a function thereof, so that the line remains matched to the input and output circuits even though the impedance of the line changes with change in the delay. The input and output circuits may include variable resistors, emitter followers or cathode followers as shown. The control voltage is applied via the input cathode follower from terminal 7. In an alternative arrangement, Fig. 1 (not shown), each diode is isolated by a capacitor and the biasing voltage is applied to the diodes via individual decoupling resistors.
Patent GB-1136786-A (GB)
Title: Method and apparatus for controlling the supply of water to the steam generator of an autoclave
IPC: A61L2/24
Filed: 1966-09-22
Abstract: 1,136,786. Steam sterilizer. ELECTROLUX A.B. 22 Sept., 1966 [27 Sept., 1965], No. 42331/66. Heading A5G. The water supply to the steam generator 28 of an autoclave 11 derives form a dosing tank 19 (automatically refillable from the water supply 23) which is at a higher level. Closing the autoclave door automatically sets the valves 22, 26 and 42 to their operating positions and closes an electric switch which energises the heater, the timed operation of which is subsequently governed by the thermostat 57. In operation, steam from the generator initially blows air from the autoclave through the conduit 15, 16 &c. to the storage tank 23 from which it is released. When the operating pressure is reached, the regulating valve 36 functions to cause a pressure reduction behind the throttle 17 in conduit 16, which will then be lower than the pressure in the autoclave, due to the throttle. Water is therefore forced back to the tank 19 via the conduit 27, 25 and 20 causing steam generation to 'be interrupted until the pressure drops slightly when the regulating valve closes, pressure across the throttle is equalized and dosing water again reaches the steam generator. The device numbered 46 to 53 is an automatic vacuum device for exhausting the autoclave at the end of a run by condensation of steam first in the jacket 52 (which then becomes filled with cool water) and subsequently of steam (from the autoclave) in the chamber 47.
Patent GB-1021040-A (GB)
Title: Materials handling system
IPC: B60P1/60
Filed: 1964-10-16
Abstract: 1,021,040. Loading goods by buoyancy conveyers. CLARK EQUIPMENT CO. Oct. 16, 1964 [Nov. 1, 1963], No. 42372/64. Headings B8B and B8E. [Also in Division F2] In a materials handling floor of a trailer or duck board adapted to provide an air film through multiple valves 64, Fig. 3, set in the surface and opened by contact with the load, ducts 50 (A-E) are arranged under the surface to convey the air to the different regions of the floor. The ducts are formed in extended aluminium sections 42 arranged longitudinally of the floor, each duct leading air to groups of valves 64 in different longitudinal regions 1R- 5R and 1L-5L, Fig. 1 (not shown), of the floor. Remotely actuated valves in air supply manifolds 86, 88 (not shown), arranged under the floor may therefor be used to selectively supply the different regions. The sections 42 are interlocked by side flanges 52, 54 and disposed on each side of a central section member 32 having handed engagement flanges 55, 56. A duck board 134, Fig. 13 (not shown), built up from similar extruded sections for use as air ducts has hooked members 162 at one end for engagement with recesses 160 on the rear end of a trailer floor 30 and has casters 166 at the opposite end adjustable in height by a pivoted bracket 168 and locking pin 174 engageable in alternative holes 172.
Patent GB-1062176-A (GB)
Title: Improvements in or relating to image convertors or image amplifiers
IPC: H01J31/50
Filed: 1963-10-28
Abstract: 1,062,176. Image converters. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Oct. 28, 1963 [Oct. 31. 1962], No. 42399/63. Heading H1D. An image converter or amplifier tube is provided with circuitry enabling one or more focusing electrodes to be connected alternatively either to the photo-electric cathode or to the apertured anode to provide two fixed values of image magnification. The image converter tube shown comprises a photo-electric cathode in the form of a layer 3 on a dish 1 joined to a cup-shaped carrier 4 which is connected to a cylindrical electrode 5 forming part of the tube envelope. The wider opening of a funnel-shaped anode 11 is closed by a plate 14 carrying a fluorescent screen 13. Electrodes 15 and 16 are sealed through an insulating wall 9 which completes the envelope. Electrode 15 is at anode potential. With electrode 16 at cathode or anode potential respectively, equipotential planes are obtained as indicated by the lines 17 to the left and right respectively of the axis 7.
Patent GB-1282446-A (GB)
Title: Seal between a rotatable shaft and a wall of an apparatus which, during use, contains a liquid medium
IPC: F16J15/34
Filed: 1969-08-26
Abstract: 1282446 Rotary shaft seals VICKERSZIMMER AG PLANUNG UND BAU VON INDUSTRIEAN LAGEN 26 Aug 1969 [17 Sept 1968] 42488/69 Heading F2B A seal between a rotary shaft and, for example a wall of a screw conveyer, mixer or reactor, comprises sealing surfaces on the shaft and wall perpendicular to the shaft axis and a resilient metallic annular body 11 of V or U cross-section provided with rubbing ring surfaces 13 at its free ends for engagement with the sealing surfaces, the centreline of the V or U shape being perpendicular to the shaft axis. The body 11 may be made from corrosion-resistant steel and the rubbing ring surfaces 13 provided on rings 12 of Co-Cr-W alloy, the latter being bonded to the body by soldering or welding. Contact pressure may be adjusted either by moving the shaft axially, Fig. 1b or by moving a ring carrier 15 by means of nuts 18, Fig. 1a. An elastomeric lip seal 9 may be provided on the side of the rubbing ring seal remote from the product space 3.
Patent GB-1005206-A (GB)
Title: Improvements in or relating to electrical immersion heating elements
Inventor: BYFORD GEORGE PLEDGER
IPC: H05B3/06
Filed: 1961-11-28
Abstract: 1,005,206. Two-part couplings. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 9, 1962 [Nov. 28, 1961], No. 42501/61. Heading H2E. An electric heating element is provided with a non-reversible earthed 3-pin connector. The element 3 is mounted on a hollow metal housing 1 in which an insulating contact mounting block 7 is held by a screw ring 21 with a sealing washer 23. A pair of current carrying pins, e.g. 9, and a rectangular earth pin 13, are moulded into the block 7, the earth pin being integral with, or riveted to a cross-bar 14, the ends of which provide earth continuity with the housing 1.
Patent GB-1188830-A (GB)
Title: Improvements in or relating to Disc Brakes.
Inventor: LALLEMANT PIERRE JOSEPH MARTIN
IPC: F16D65/12
Filed: 1967-09-19
Abstract: 1,188,830. Disc brakes. SOC. HISPANOSUIZA-LALLEMANT. 19 Sept., 1967 [6 Oct., 1966], No. 42506/67. Heading F2E. In a disc brake having a plurality of sectors 11a 11b, 11c, each sector is connected to the adjacent sector by an assembling means 3, 313 permitting relative circumferential movement between their adjacent sectors, each assembling means 3, 313 is constituted by a pair of radially oriented bars and each bar has an inwardly or outwardly radial projection 27, 4 to co-operate with a part 28, 5 of complementary form in a rotatable or non-rotatable structure forming part of the brake. As shown, the assembling means is in the form of plates 313 secured to the sectors by rivets 114. A sintered material lining 26 is secured in a metal support 22 which has a projection 23 and arms 21 at each end which locate in corresponding slots in the sector 11. The arms locate beneath the plates 313. This disc brake may have two axially spaced discs (122, Fig. 1, not shown), fixed to the wheel, e.g. of an aviation vehicle and two rotatably fixed discs (124) axially movable into engagement with the moving discs (122). The plates 313 may have inward projections 27 (Fig. 7) or outward projections 4 (Fig. 2) for securing the disc to the inner fixed support 123 or outer 123 or outer wheel 120 of the vehicle. In a modified sintered brake lining (Figs. 4 and 5, not shown), the connecting plates 313 have grooves 115 along each edge instead of the stop surfaces 115 of Figs. 7 and 8 to receive the backing plates (17) of the linings. The connecting plates 313 may have projections and recesses (27, Fig. 4, not shown) which engage projections 28 on the fixed part 123 of the brake. The disc need not have any lining as in the Fig. 2 construction, in which case the sectors are recessed at their edge 8 to accommodate the connecting plates 3.
Patent GB-1010988-A (GB)
Title: Improvements in and relating to striking mechanisms
IPC: B41J9/38
Filed: 1964-10-19
Abstract: 1,010,988. Selective printing. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 19, 1964 [Nov. 8, 1963], No. 42533/64. Heading B6F. Hammer impression arrangements.-A high-speed selective printer having a type wheel 7 is provided with a hammer 8 comprising a hammer formed by a larger portion 1 and a smaller portion 2 linked together by an elastic connection 3. The portion 2 is guided within a tubular extension 11 of the portion 1, which in turn is guided within a tubular extension 4<SP>1</SP> of a stop 4. The hammer is controlled electro-magnetically and an electrical coil (not shown) is provided on in extension 5 of the portion 1 movable within gap 6 of polepieces 9, 10 of a permanent magnet. Upon passing a current through the coil the portion 1 moves towards the stop 4, which arrests the portion 1 whilst the portion 2 travels on for impression against a selected character on type wheel 7, by virtue of elasticity of the connection 3. When the portion 1 moves away from the stop 4 the portion 2 moves closer to the portion 1 due to the contraction of the connection 3 thereby preventing rebound.
Patent GB-1515885-A (GB)
Title: Apparatus for manufacture of sheets or board units from cellulose or fibre material or shavings
IPC: B27N3/16
Filed: 1975-10-17
Abstract: 1515885 Transferring sheets between conveyers DEFIBRATOR AB 17 Oct 1975 [23 Oct 1974] 42727/75 Heading B8R [Also in Division B5] Sheets of cellulose, fibrous material or shavings are compressed and heated in a multiplaten, multicavity press 10 (Fig. 2), with each sheet supported on a plate and/or wire frame. An elevator 12 feeds the sheet/plates/ wires into the cavities of press 10, while an elevator 14 lowers them back to the conveyer level for separation. The sheets/wires are circulated back to the feed side of the press by conveyers 16, 28. At each corner of the rectangular array of conveyers is positioned a device 24 that (starting from the discharge side of the press) lowers, raises, lowers and then raises again the recirculating plates/wires, which is said to speed up passage round each corner. The devices 24 operate substantially as described in the Specification 1,155,883, but are used to raise and lower single plates/wires rather than stacks. The feed conveyers 28, 18 (Fig. 3) are arranged at right angles to one another, the conveyers 28 running transversely of the devices 24 rather than longitudinally (as in the copending application). The pivotable members 62 support the plates/wires on flanges or on rollers.