baber/WOPTO huggingface dataset:
Patent GB-990424-A (GB)
Title: Improvements in or relating to devices for transmitting electric signals by means ofslip contacts and slip rings
IPC: G01C19/10
Filed: 1961-12-20
Abstract: 990,424. Collectors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Dec. 20, 1961 [Dec. 23, 1960], No. 45618/61. Heading H2E. In a device for transmitting electric signals between a stationary part 2 and a rotatable part 1 by means of slip contacts 6 and sliprings 4, in order to reduce the torque due to the friction between slip contacts 6 and slip-rings 4, the sliprings 4 (or slip contacts) co-operating with the slip contacts 6 (or slip-rings) on part 2 are arranged in an intermediate support member 3. Member 3 is readily rotatable relative to both parts, is coupled to part 1 by flexible conductors 8, and is driven synchronously with part 1 by a motor controlled by a device for sensing the relative movement between part 1 and member 3. As shown, the sensing device comprises a stator 11 on member 3 and a rotor 12 on part 1 connected via an amplifier (not shown) to the motor which comprises stator 10 on part 2 and rotor 9 on member 3.
Patent GB-1353788-A (GB)
Title: Automatically reading information carriers on articles travelling on conveyors
IPC: B65G47/244
Filed: 1971-10-01
Abstract: 1353788 Endless conveyers ZELLWEGER Ltd 1 Oct 1971 [21 Oct 1970] 45749/71 Heading B8A To ensure that an information carrier 2 on an article 1 or 1<SP>1</SP> passes above a reading zone 40 having a width b which is less than the width B of a conveyer 3, means are provided which guide the article such that its carrier 2 passes within the width b. The article is urged laterally against a driven belt 31 by an arm 34 which engages the article. Modified guide means may comprise two stationary wedge-shaped members (41, 42) Figs. 3, 4 (not shown). In Figs. 5-8 (not shown) a driven belt (45) pivotally mounted at its upstream end deflects the articles transversely of the conveyers (3, 4). There may be a further belt, driven or undriven, opposing the deflecting belt. Fig. 9 (not shown). If the apparatus is inclined laterally neither of the lateral belts need be driven and the deflector belt may be replaced by a deflector plate. The conveyer belt 3 may have an edge with a corrugated profile.
Patent GB-1185937-A (GB)
Title: Roll Assembly
Inventor: JAMES RALPH EMERSON
IPC: D21F3/08
Filed: 1968-09-26
Abstract: 1,185,937. Roller. POLYMER CORP. 26 Sept., 1968, No. 45803/68. Heading F2U. A roller, e.g. a swimming roller in a supercalendar stack for finishing paper, comprises a stationary core 1 and a shell 2 bearing mounted at 5 and 6 on the core, a loose cover 9 being mounted on the shell and formed of a polycarbonate material, e.g. a polyarylcarbonate formed by reacting bisphenol-A with phosgene. Passageways 3 and 4 are provided in the core 1 to direct fluid, e.g. oil, to two chambers defined between the core and shell by a pair of axial wipers (10), Fig. 1 (not shown), on the core, the passage 3 being under pressure to exert a uniform pressure on the shell even when the core is deformed under load. Seals 7 and 8 are provided at the roller ends, flanges 9a on the roller end plates preventing axial movement of the cover. Pressure cylinders 14, 15 act on the core journals to apply pressure to the roller stack.
Patent GB-1044376-A (GB)
Title: Improvements relating to electron beam parametric amplifying or frequency convertingdevices
Inventor: LUCKEN JACK AUGUSTUS
IPC: H01J25/49
Filed: 1961-12-21
Abstract: 1,044,376. Space charge wave tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. Dec. 21, 1962 [Dec. 21, 1961], No. 45932/61. Heading H1D. An electron beam parametric amplifying or frequency converting device has input coupling means for coupling to the fast cyclotron wave of the electron beam, said means comprising a quadrupole which is so energized as to produce a circularly polarized wave of effectively infinite phase velocity. The beam produced by an electron gun 1 passes with substantially uniform axial velocity to an electron collector 2 through an input coupler in the form of a linear quadrupole comprising few planar symmetrically arranged deflecting plates supplied in opposite pairs 6, 7 and 8, 9 with phase quadrature signals which set up a circularly polarized wave of frequency fs, a pumping means 4 of similar construction to that used in an Adler tube fed with a frequency of 2 fs and an output coupler represented as deflecting plates 11, 12 connected to an output circuit tuned to frequency fs. If desired, the output coupler may be of the same form as the input coupler whose plate length may be between 5 and 40 times the input signal wavelength, e.g. 0.5 inch long spaced 0.05 inch apart.
Patent GB-1165953-A (GB)
Title: Dispensing Particulate Material
IPC: G03G15/08
Filed: 1966-10-14
Abstract: 1,165,953. Developing electrostatic images. RANK XEROX Ltd. Oct.14, 1966 [Oct. 18, 1965], No.46099/66. Heading G2H. A container 105 for xerographic toner has openings 108 through which the toner is dispersed to a cascade developing apparatus when inserted in a xerographic machine Fig.1 (not shown). The container is rotated by a belt (130, Fig. 3, not shown) driven by the developer apparatus. The container is supported, in the machine, by a stationary grid 116, Fig. 6, attached to an adjustable grid 141, Fig. 7, such that relative adjustment of the grids varies the flow through openings 117 and 141. A tear strip 110, (Fig. 3), seals the container before insertion in the machine.
Patent GB-1174450-A (GB)
Title: Improvements in or relating to a Shuttering Device for the Production of Container-Shaped Concrete Structures.
Inventor: HEINZLE OTTO
IPC: E04G11/20
Filed: 1967-10-10
Abstract: 1,174,450. Wall shuttering. O. HEINZLE. 10 Oct., 1967 [11 Oct., 1966], No. 46274/67. Heading E1S. Container, e.g. side walls are cast in annular shuttering 1, 2 supported from a central working platform 8, which is supported in turn by an axial post 4. A hand- (as shown) or powered winch 17 is attached, via a cable 18 running over the pulley at top of the post, to a spring-loaded pivoted lever 19 fixed to a sleeve 19' which rests on a collar 5 fixed to radial beams 6 supporting the sectorshaped platform components 7. The shutters are held apart by spacers 13, and supported by rods 9 passing through slots in the shutters, and fixed to the platform by brackets 10. The inner and outer shutters, which may each comprise one piece or a plurality of pieces connected together, are closed by a wedge-shaped plate fixed in edge grooves and a generally channel-sectioned member cooperating with L-sectioned flanges respectively. (Figs. 2, 6-8, not shown). The post may comprise sections spigoted. together, and each component 7 comprises transverse boards 24 interconnected by radial stiffeners 22 (Fig. 5, not shown). Clamps 36 (Fig. 10, not shown) may be fixed to upwardly projecting wall reinforcement to limit the vertical rise of each shuttering lift, and guard posts may be fitted to the outer shuttering.
Patent GB-1224089-A (GB)
Title: An overpressure relief device
IPC: F17C13/12
Filed: 1969-09-22
Abstract: 1,224,089. Pressure gauge safety device. UNITED STATES ATOMIC ENERGY COMMISSION. Sept. 22, 1969 [Oct. 18, 1968], No. 46475/69. Heading G1L. In an overpressure relief device a diaphragm 14, normally subject to a differential pressure, when subjected to an excess pressure is deflected on to an electrode 30, normally spaced and insulated from the diaphragm, to complete an electric circuit and be ruptured.
Patent GB-1421045-A (GB)
Title: Magnetomotive bista be switching devices
IPC: H01H36/00
Filed: 1973-10-05
Abstract: 1421045 Movable magnets switches W H KURPANEK 5 Oct 1973 46575/73 Heading H1N A manually operable bi-stable switch has two permanent magnets 1 between the opposed poles of which an armature contact bridge 3 is movable in dependence on the position of a ferromagnetic keeper 5 rotatable by a knob 9. The bridge 3 co-operates with fixed contacts 4 in a sealed chamber 2, within a plastics switch housing 7.
Patent GB-1458244-A (GB)
Title: Washing machine
IPC: F16H15/56
Filed: 1974-10-29
Abstract: 1458244 Change-speed gear IB MEI SpA 29 Oct 1974 [30 Oct 1973] 46784/74 Heading F2D [Also in Division D1] A washing machine has a two-speed speedchange epicyclic gear for washing and spinning. A pole-changing motor drives a shaft 3 on which is fixed a hub 15 supporting three pivots 14 and three planet wheels 12. A driving disc 5 is freely rotatable about the shaft, and keyed to it is a coupling part 20 having friction clutch faces 21 for engaging the other part of the housing, which includes a pulley wheel 8 and is also freely rotatable about the shaft. The driving disc 5 cannot move axially, but the coupling part has limited axial movement, and is biased to engage the driven part 7 by spiral springs 24 acting between the disc 5 and a ring 23 which presses against teeth 22 on the coupling member. In this position rotation of the shaft causes the planet wheels to rotate the complete housing. When an electromagnet 28 is energized the coupling part is disengaged from the driven part and is held stationary against the magnet. The disc 5 is thus stationary and the planet wheels run round the disc and drive the housing at double the speed of the shaft. By changing the motor speeds also four speed in all may be obtained.
Patent GB-1151270-A (GB)
Title: Signal Transmission Systems
IPC: G10L25/00
Filed: 1966-10-21
Abstract: 1,151,270. Transmission systems; pulse modulation systems. INTERNATIONAL BUSINESS MACHINES CORP. 21 Oct., 1966 [14 Jan., 1966], No. 47115/66. Addition to 1,039,822. Headings H4L and H4R. A receiver for use with the transmitter of Specification 1,039,822, in which a speech signal is added to a constant level high frequency signal and the resultant signal limited to obtain a rectangular waveform of constant amplitude having a constant total power level but a power-frequency distribution the same as that of the sum signal, separates the received signal into the speech frequency components and reference frequency components by filters 72 and 74, amplifies the reference frequency components in amplifier 76, adds the resulting signal to the speech frequency components in adder 78 and then limits the sum signal in limiter 80, from the output of which the speech signal components are separated by filter 82. The arrangement, by amplifying the reference signal variations relative to those of the speech signal and then limiting in a similar manner to that used at the transmitter, tends to vary the power level of the speech signal inversely relative the level of the received reference signal and so tends to restore the speech spectrum to its original power level, the accuracy with which it does so depending on the gain of the amplifier 76 which should be as high as is practicable.
Patent GB-1116442-A (GB)
Title: Improvements in or relating to particle accelerating tubes
Inventor: HOWE FREDERICK ALBERT
IPC: H05H5/00
Filed: 1964-11-19
Abstract: 1,116,442. Particle accelerators. UNITED KINGDOM ATOMIC ENERGY AUTHORITY 16 Nov., 1965 [19 Nov., 1965], No. 47260/64. Heading H1D. In a D.C. particle accelerator at least one " quartet" of axially localized transverse magnetic fields is provided along the acceleration tube to deflect the beam successively away from the axis of the tube, parallel to the axis, towards the axis and then along the axis again or, in practice, along a path parallel to, but slightly displaced from the axis, as shown. Spurious electrons are, however, deflected into the electrodes and the electron loading is thus reduced. The magnetic fields may be set up by one or more pairs of permanent magnets or by annular permanent magnets incorporated in selected electrodes, i.e. mounted in the dished portions of selected electrodes with coverplates provided to shield the magnets from the electric fields. At the input end of the acceleration tube electrodes with circumferentially corrugated apertures may be used to provide non-axial electric fields. Alternatively electrodes with non-corrugated circular apertures progressively decreasing in diameter may be used. In an arrangement with pairs of permanent magnets the apertures of the electrodes have enlarged end portions to aid evacuation and successive electrodes are rotated, in certain regions where the magnetic fields are closely spaced by 90 degrees, to provide optical baffling. In a second arrangement with annular magnets Fig. 7 (not shown), relatively large apertures are used to increase pumping speed. Electrodes dished in either direction relative to the beam may be used. In the arrangement shown, certain of the electrodes may be flat with a transitional degree of dishing of the electrodes on either side in order to avoid any reduction in the number of electrodes along the acceleration tube due to the incorporation of the magnets. A progressive dishing of the electrodes adjacent those carrying the magnets may also be used in the second arrangement, Fig. 7 (not shown). In the arrangement shown, successive " quartets " divert the beam to opposite sides of the tube axis. In the second arrangement, Fig. 7 (not shown), the beam is always diverted to the same side. The accelerator may be for accelerating ions or electrons.
Patent GB-1443887-A (GB)
Title: Fluid flow control valve
IPC: F16K5/20
Filed: 1974-11-01
Abstract: 1443887 Valve HONEYWELL GmbH 1 Nov 1974 [8 Nov 1973] 47301/74 Heading F2V A valve comprises a body 1 fitted with a flexible annular seat 16 for a closure 2 which is brought into engagement by rotation about an axle 3 offset from the axis of the seating, the seating being provided with a support ring 13 to limit the deflection of the seat when engaged by the closure. The flexible seat may have axial lips 17, 18 defining a seating for the closure and a contact for the support ring respectively. Flow through the valve is from the direction of the seat so that when closed pressurized fluid acts on the flexible seat through the bores 20 or alternatively via castellations (not shown). The closure 4 may be part spherical, supported by arms 5 attached to collars 6 and one end of the axle may be supported in a blind hole, the other end passing through a bush and ring gasket (10) Fig. 2 (not shown). An external link 11 couples the axle to an actuator (not shown). To prevent seat erosion the support ring bore d is smaller than the seat diameter D.
Patent GB-1100115-A (GB)
Title: Engine lift group compensator
Inventor: PALLIS STEPHEN
IPC: B64C29/00
Filed: 1963-12-03
Abstract: 1,100,115. Controlling V.T.O.L. aircraft.  ELLIOTT BROS. (LONDON) Ltd. 30 Nov., 1964 [3 Dec., 1963], No. 47656/63. Heading B7G. A compensating device for a V.T.O.L. aircraft having a group of lift engines comprises a plurality of actuators each operable by a signal dependent on the thrust of one or more of the lift engines, the actuators being adapted to so control the total lift on the aircraft that if one or more of the lift engines loses thrust so as to affect the trim of the aircraft, then such change of trim is corrected, and compensated. The arrangement shown comprises four jet lift engines 1, 2 and 3, 4 arranged symmetrically and longitudinally about the aircraft e.g. position 5, a forward propulsion engine 20 and a pair of jet control nozzles 21, 22. Engines 1, 3 are connected by ducts 10 to opposite ends of a cylinder 7 and engines 2, 4 are similarly connected to a cylinder 11. The piston-rods 12, 13 are connected to an operating arm 15 on a valve 16 which, when all the lift engines are functioning normally, seals the outlets 23, 24 to nozzles 21, 22 and either seals off pipe 19 from engine 20 or connects the pipe 19 with bleed ducts 25, 26 to prevent a sudden step demand upon the engine 20. Should one lift engine fail, e.g. engine 1, the piston and rod will be driven to operate valve 16 and connect engine 20 with the appropriate control nozzle, e.g. nozzle 21. Spring-loaded toggles may assist the rapid operation of the valves 16 and mechanism is described to shut off the fuel supply to the failed engine.
Patent GB-1219042-A (GB)
Title: Target electrodes for x-ray tubes
IPC: H01J35/10
Filed: 1969-09-29
Abstract: 1,219,042. X-ray tubes. SIEMENS A.G. 29 Sept., 1969 [27 Sept., 1968], No. 47862/69. Heading H1D. [Also in Division C7] A rotatable target for an X-ray tube comprises a central graphite disc 10, Fig. 1, and an annular outer metal member 13 which is preferably heat shrunk on to the disc. In Fig. 1 the member 13 is of tungsten and has surfaces 19 and 20 inclined at 17À5 degrees and 10 degrees respectively to the plane of the disc and either or both of which may be bombarded with electrons according to how the cathode is energized. The disc 10 is stepped at 14 to improve the adhesion of the member 13, and the disc is clamped by a nut 11 against an abutment 12 on the rotor shaft 8. In a modification, Fig. 2 (not shown), the graphite disc 10 is extended beneath the lower face of the outer metal member which comprises a molybdenum alloy containing 5% tungsten and has a flat surface facing the cathode coated with a 1 mm. layer of a 90% tungsten 10% rhenium alloy. In a further modification, Fig. 4 (not shown), the extension folds round the outer edge of the outer metal member and may be additionally secured to it by bolts (Fig. 4a, not shown). In another construction, Fig. 7, the graphite disc 41 ends in a flange 47 and is surrounded by a 95% Mo-5% W alloy ring 45 provided with a 1À5 mm. thick layer 52 of an alloy comprising 0À3% iridium, 0À3% rhenium and the balance tungsten; the assembly is arranged adjacent a cup-shaped graphite member 50 to which it is clamped when mounted on the rotor shaft. With this construction the axial projections 43 and 47 prevent the escape of stray electrons produced when the surface 52 is bombarded by electrons. In a modification, Fig. 6 (not shown), the graphite members 41 and 50 are integral. In another arrangement, Fig. 8, the metal ring 56 is heat shrunk on to a graphite ring 55 which is threaded on to the graphite member 54; the outer part of ring 55 is conical and a flange 57 on to ring 56 extends round a tapering lower edge of the ring 55. In a similar construction, Fig. 5 (not shown), the graphite members are integral, leaving a sector-shaped groove in which the metal ring is inserted. The ring is of molybdenum with a 2 mm. layer of an alloy of 12% rhenium-88% tungsten. A further construction, Fig. 3 (not shown), comprises a graphite ring of rectangular section surrounded by a molybdenum ring surrounded by a 2 mm. layer of 99À9% tungsten-0À1% rhenium. This electrode is suitable for use when the electron beam is directed towards the radially outer edge of the target.
Patent GB-1299583-A (GB)
Title: Castors
Inventor: ASTON JACK RALPH
IPC: B60B33/00
Filed: 1970-10-10
Abstract: 1299583 Castors JOSEPH GILLOTT& SONS Ltd 1 Oct 1971 [10 Oct 1970] 48263/70 Additon to 993928 Heading A4U A castor comprises a pivot 10, rotatably secured by a circlip 15 in a socket 16 in a body member 11, a longitudinally split, two part plastics bearing bush 20, 21 secured in an openended recess in the body member, and a roller member 12 having secured therein a spindle 13 which is rotatably retained in the bearing bush by the engagement of aligned ribs 25 on the bush parts in an annular groove 26 in the spindle. The spindle 13 is laterally offset from and inclined at an angle other than 90‹ to the axis of the pivot and is a drive fit in a blind socket in the roller member 12. The bush 20, 21 push-fitted in the  recess in the body member 11, has end parts 22 forming a closed outer end, stop flanges 24, abutting a hub 19, and is retained in the recess in the body by the engagement of a profiled rib 23 in the recess in aligned peripheral grooves in the bush parts. The bush is preferably made of nylon, and the body and roller members may be made of hard plastics, metal or metal and plastics components. In modifications, the bush is located in the roller and the spindle is a drive fit in the body member or is located in the mould during casting or moulding of the roller or body member, the recess in the body member is closed at the outer end, or the bush is in one part or in more than two parts.
Patent GB-1207385-A (GB)
Title: Improvements in or relating to flaw detection
Inventor: OBRAZ JAROSLAV
IPC: G01N29/38
Filed: 1967-10-25
Abstract: 1,207,385. Ultrasonic inspection devices. STATNI VYZKUMNY USTAV PRO STAVBU STROJU. 25 Oct., 1967 [1 Nov., 1966], No. 48428/67. Heading H4D. In an ultrasonic pulse-echo system for inspecting a rod moved axially relative to several probes disposed in a plane normal to the rod axis, three-dimensional flaws (e.g. cavities and occlusions) and two-dimensional flaws (e.g. cracks) are distinguished on the basis that the three-dimensional flaws return echoes to more probes than do the two-dimensional flaws. In the Fig. 4 embodiment an m-phase synchronizer 10 controls m circuits 6 to 9 for pulsing m probes 1 to 4 sequentially in m respective periods which together make up an operating cycle. Echo signals returned to the probes are applied to gating circuits 11 to 18 which are opened by synchronizer 10 for times such that in the nth period echoes received by the nth probe and the (n+1)th probe are passed via lines 25, 26 to amplifiers 27, 32 respectively. The amplifier outputs are applied via flaw echo-gating circuits 28, 33 to staircase waveform generators 29, 34 whose outputs comprise as many steps as there are echoes from a flaw in one cycle, the generators being reset to zero at the end of each cycle. It is argued that an ultrasonic pulse from the nth probe is likely to be reflected to both the nth and (n+ 1)th probes if the flaw is three-dimensional, but to one probe only if the flaw is two-dimensional. Hence, at the end of each cycle the waveforms of both generators 29 and 34 will have m steps if the flaw is three-dimensional: this condition is detected by lower level limiters 30, 35 and coincidence circuit 37. The presence of fewer than m steps in either or both waveforms is detected by upper level limiters 31, 36 and a crack indicator 38. Output signals from circuit 37 and indicator 38 are applied to a recording device, an evaluating computer, or to an audible or visual signalling device. Indicator 38 is inhibited if circuit 37 is actuated.
Patent GB-1074133-A (GB)
Title: Photographic materials
IPC: G03C1/83
Filed: 1963-12-09
Abstract: 1,074,133. Photographic silver halide materials. EASTMAN KODAK CO. Dec. 9, 1963 [Dec. 11, 1962], No.48460/63. Heading G2C. A photographic silver halide material contains in the emulsion as an anti-foggant, at least one formazan of Formula I:- and/or at least one of Formula II:- wherein R1 and R2 are aryl or substituted aryl groups, R3 is an aryl, nitro or carbalkoxy group and X is a dialkoxy diphenyl group. Examples of compounds are given wherein R1 and R2 are phenyl groups one of which may be substituted in para-position by an acetamido or phenylazo group, R3 is phenyl, nitro or carbethoxy group and X is 3:3<1 >- dimethoxy-biphenylene.
Patent GB-1493606-A (GB)
Title: Device for the filtration of blood
IPC: A61M5/165
Filed: 1974-11-08
Abstract: 1493606 Non-woven filter B BRAUN MELSUNGEN AG and CARL FREUDENBERG 8 Nov 1974 [12 Nov 1973] 48485/74 Heading D1R [Also in Division B1] A blood filter material comprises a homogenous layer which has been prepared by compressing and heating a homogenous mixture of fibres whereby at least one component softens and binds the other component(s). The material may comprise a second layer adjacent the first-mentioned layer, the second layer being formed from heat-softenable fibres which are applied to the first-mentioned layer before it is compressed and heated. The fibres may be polyamide, polyester, polyacrylonitrile, polyethylene, polypropylene, polyvinyl chloride, rayon, wool, silk, cotton, metal, alloy, glass and asbestos. The material may have a density of 0.2 g/cc to 3.5 g/cc and a thickness of 0.1 mm to 30 mm.