baber/WOPTO huggingface dataset:
Patent GB-2102519-A (GB)
Title: Combined hydraulic booster and master cylinder assemblies
Inventor: FARR GLYN PHILLIP REGINALD
IPC: B60T13/14
Filed: 1982-06-23
Abstract: A combined assembly for taking up brake clearances quickly has a booster (1) and a master cylinder (2), which share a common reservoir (8) for fluid. A reservoir chamber (26) is defined between a boost piston (9) and a primary piston (18) of the master cylinder (2). The reservoir chamber (26) is able to communicate with a primary pressure space (22) of the master cylinder (2) and, though a restriction and relief valve assembly (27) with the reservoir (8). In operation, the boost piston (9) is advanced in response to pressurisation of a boost chamber (16) by fluid from a pressure source (6), under the control of valve means (14) which are operated in response to movement of a pedal- operated input member (11). Initial movement of the boost piston (9) displaces fluid from the reservoir chamber (26) and the assembly (27) restricts flow back to the reservoir (8). The fluid is displaced through part (31) and then past seal (32) into the pressure space (22) to take up the brake clearances, until the relief valve (28) opens to allow unrestricted flow from the reservoir chamber (26) to the reservoir (8). Thereafter the assembly operates normally. <IMAGE>
Patent GB-2102241-A (GB)
Title: Colour television receiver comprising a transcoding circuit
Inventor: VAN KEEKEN ANTONIUS FRANSISCUS
IPC: H04N9/64
Filed: 1982-07-09
Abstract: In a PAL-S.E.C.A.M. colour television receiver comprising a transcoding circuit 23 for converting a S.E.C.A.M. signal into a signal which may be decoded by a PAL decoder 37, and a systems change-over switch 19 which is operated by the output signal of a S.E.C.A.M. identification circuit 27 via a blocking circuit 47, for automatically switching the systems change-over switch adapting the receiver to the reception of PAL or S.E.C.A.M. signals. The blocking circuit 47 is operated by a PAL identification signal 41 and in the event of a PAL signal blocks the output signal from the S.E.C.A.M. identification circuit 27. The arrangement has the advantage that in the event of a disturbed PAL signal being received the output signal from the S.E.C.A.M. circuit does not set the systems change-over switch 19 to its incorrect position. <IMAGE>
Patent GB-2105113-A (GB)
Title: Radiation reflector
Inventor: WURMSEER MATTHIAS
IPC: H01Q15/16
Filed: 1982-07-15
Abstract: A foldable and unfoldable radiation reflector comprises support ribs 2 which are located so as to be swingable on a central supporting body 3 and which, in the unfolded state of the reflector, point to some extent radially outwards and spread out a reflector network which forms the reflecting surface, preferably of rotationally paraboloid- shape. The support ribs 2 are fixed to the supporting body 3 by respective fulcrums 4 which are inclined with respect to the radial direction 5. The orientation of the fulcrums differs from the respectively radial direction by the equivalent of consecutive swinging in the azimuthal direction and tilting in the direction perpendicular thereto. <IMAGE>
Patent GB-2108275-A (GB)
Title: Electrical circuit
Inventor: HAWKINS MICHAEL RAYMOND
IPC: G01R27/22
Filed: 1982-08-24
Abstract: A resistance Rw, most usually a temperature-dependent resistance, is eliminated from a resistance network comprising a first resistance Rc of interest with the resistance Rw in parallel therewith by connecting in parallel with Rw and Rc a circuit providing resistance equal to or substantially equal to -Rw over at least a range of temperature, whereby the network has an effective resistance of Rc. <IMAGE>
Patent GB-2107921-A (GB)
Title: Discharge lamp electrode
Inventor: HUSSEY DOUGLAS
IPC: H01J61/073
Filed: 1982-08-27
Abstract: An electrode e.g. the anode (30) of a high pressure xenon discharge lamp has a continuous helical groove (38) formed around it in the form of a screw thread. The anode can have a truncated tapered front end (32) to increase the stability of the discharge arc. Electrode dimensions are exemplified for one and two kilowatt lamps. <IMAGE>
Patent GB-2111945-A (GB)
Title: Magnetic tape cassette
Inventor: LANGER ERICH
IPC: G11B23/42
Filed: 1982-10-18
Abstract: A magnetic tape cassette comprises a cassette housing containing a magnetic tape. In order that the cassette can be used with a recording apparatus containing a timer for determining at least one start and one stop instant for an automatic recording which is preprogrammed in respect of time, a tape-length mark indicating the length of the magnetic tape contained in the cassette housing is provided, which mark is in a form which is detectable by a recording apparatus when the cassette is placed thereon.
Patent GB-2114490-A (GB)
Title: Attachment apparatus
Inventor: CURTIS LIONEL BRIAN
IPC: E04B2/74
Filed: 1982-12-02
Abstract: This invention relates to an assembly machine 10 which is primarily designed to attach stiffeners 11 to sheet panels 12. The apparatus 10 has a table 13 along which each panel 12 can travel to pass underneath the stiffener support beam 14. Stiffeners 11 are fed one at a time on to the upper surface 15 on to the support beam 14 from a delivery mechanism 16 after they have passed a gluing station 17. The beam 14 can be rotated through 180 DEG  and subsequently moved downwardly so that the stiffeners 11 engages the panel 12 and hence is glued to that panel. A control system is provided for sequencing the various operations so that stiffeners 11 can be positioned at spaced intervals on the panel 12. <IMAGE>
Patent GB-2113849-A (GB)
Title: Two-wire differential pressure transmitter
Inventor: MASUDA HISAKI
IPC: G08C19/02
Filed: 1982-12-22
Abstract: A two-wire differential pressure transmitter comprises a pressure sensor 20 having a pressure-sensitive element 21, 22 for converting a change in a pressure into a resistance change to produce an electric signal indicative of the pressure change, a temperature detector 23 having a thermosensitive element 24 disposed in the vicinity of the pressure-sensitive element for generating an electric signal indicative of a change in ambient temperature, a memory 31 for storing in advance data on relationships of the electric signal from the pressure sensor with respect to the pressure and the ambient temperature, an arithmetic and logic circuit 30 responsive to the electric signals from the pressure sensor and the temperature detector for reading corresponding data out of the memory to compute the pressure applied to the pressure-sensitive element, and a circuit 32 for converting an output signal from the arithmetic and logic circuit into an analog electric signal and delivering the latter over a two- wire transmission line. <IMAGE>
Patent GB-823873-A (GB)
Abstract: 823,873. Gyro - magnetic compasses. SPERRY RAND CORPORATION. Jan. 1, 1957 [Jan. 5, 1956], No. 70/57. Class 40 (1). In a system comprising a magnetic compass, a directional gyro normally slaved thereto and an indicator, wherein a servomotor brings the latter into alignment with the gyro by means of an error signal, the servomotor can be temporarily switched to respond to the error between the magnetic compass and the indicator, for quick alignment of the latter. In the Figure the flux valve 13 energizes a synchro 21 to give an output from the rotor 19 if this is not in alignment with the compass rotor 25. With the switches in the postions shown the error signal from 19 (at double the supply frequency) is passed to the torque 11 and causes precession of the gyro 2 about the axis 3 on which is mounted the rotor 34. A further error signal is developed by the angular difference between the rotors 34 and 39 and this energizes the servomotor 47 to rotate the shaft 17 and its associated members until eventually the compass, gyro and indicator 14 are all in alignment. This process is slow, however, and for initial setting up it is arranged that the indicator be driven directly from the compass with the gyro disconnected. When the instrument is first switched on at 54 the indicator is aligned with the gyro as described above and the heaters of the thermal-delay switches 59, 61 are energized. After a short time (e.g. 30 sec.) to allow conditions to become stable contact 60 closes to energize solenoid 63 and pull the 4-pole switch to the L.H. position. The output of the rotor 19 (first error signal) is now applied to the chopper 77 (which restores the frequency to that of the supply) and via contact 64 direct to the servomotor 47 so that the shaft 17 is rotated to bring the indicator into alignment with the compass. At the same time the gyro is disconnected by the magnetic clutch 18 as the energization of the coil 51 is now cut off. After a further period (e.g. 20 sec.) the slower thermal switch 61 operates, opening contact 64 to cut off the first thermal switch and restore the connections to their original state. The rotor 32 gives an indication of the compass bearing to a repeater or an auto pilot. If it is desired to use the gyro free without control from the compass (e.g. in high latitudes), switch 82 is opened. This also cuts off the supply to the thermal-delay switches so that on re-connecting the gyro the quick synchronizing cycle is set in motion again as above. Specification 638,971 is referred to.
Patent GB-2134424-A (GB)
Title: A tile cutting machine
Inventor: LING CLIFTON EDGAR
IPC: B28D1/04
Filed: 1983-01-22
Abstract: A machine suitable for cutting tiles comprises a box-like casing 10 in which is rotatably mounted an arbor 19 driven by a motor 16 through belt 15 at about 2500 r.p.m. The arbor carries a diamond dust cutting disc 29 which projects through a slot 28 in the top wall 14 of the casing, serving as a work-table. A water bath 26 is mounted within the casing so that from 6.25% to 6.75% of the disc diameter may dip into water contained in that bath. Suitable guides for a tile are provided on the top wall, whereby a tile may be slid along the guide whilst being cut by the rotating cutting disc. Water is picked up by the wheel to cool and lubricate the cutting edge, and forms a slurry with tile dust which runs back into the water bath through slots 32 and holes 31 (Figure 1). <IMAGE>
Patent GB-2115647-A (GB)
Title: Mounting a headset at a wall
Inventor: MEYER JURGEN
IPC: B60R11/02
Filed: 1983-02-03
Abstract: In mounting a headset (3) at a wall, especially at the inner skin (1) of an aircraft, motor vehicle or the like, the inner skin (1) is provided with a recess (6), in which the headset support member (4) is held in position by a retaining device (7). <IMAGE>
Patent GB-2114824-A (GB)
Title: Electrical terminal
Inventor: WOERTZ HANS
IPC: H01R4/24
Filed: 1983-02-04
Abstract: At least one entraining body (28, 29) is arranged for movement between two end positions in a housing (10). The entraining body (28, 29) is provided with a recess (32, 33) for the reception of an end portion of an insulated conductor and projects through a passage (22, 23) in a contact member (15). The latter has at least one slit-shaped opening (24, 25) which has blade-like edges and an enlarged aperture (26, 27) into which the passage (22, 23) goes. The part (15A) of the contact member (15) containing the slit-shaped opening (24, 25) and the enlarged aperture (26, 27) engage in a mouth-like notch (34, 35) of the entraining body (28, 29). At least one part (33B) of the recess has a closed peripheral wall. In one end position of the entraining body (28, 29) an insulated conductor can be inserted into the recess (32, 33). By means of a subsequent movement of the entraining body (28, 29) to its other end position the conductor will be forced into the slit- shaped opening (24, 25) whereby the blade-like edges of the slit-shaped opening (24, 25) cut through the insulation and make contact with the conductor. In desired cases, the conductor may again be separated from the contact member by moving the entraining body (28, 29) in the opposite direction. <IMAGE>
Patent GB-2124732-A (GB)
Title: Construction unit comprising a gas spring
Inventor: KORTGEN BERND
IPC: F16F9/00
Filed: 1983-07-14
Abstract: A gas spring comprising a pivotal joint unit connecting the gas spring and a constructional part 10 of a chair. The joint comprising a bolt member and a bolt receiving member having a substantially U-shaped recess receiving the bolt member 50. The U-shaped recess has a mouth open in a direction transverse to the axis of the gas spring, so that considerable force can be transmitted without risk of disengagement and the gas spring can be easily installed in or removed from the chair. <IMAGE>
Patent GB-2132354-A (GB)
Title: Determining and/or measuring the shape of a workpiece
Inventor: WULFF GUNTHER
IPC: G01B13/16
Filed: 1983-12-13
Abstract: A device and method for determining and/or measuring the shape of a workpiece, in particular its thickness or surface form, comprises at least one measuring pin 4 the or each of which is to point towards the workpiece 2, is movably mounted in a housing 3 to which the workpiece 2 is relatively movable and has a central bore 7 through which the workpiece 2 is to be jetted with compressed gas in such a manner that a local pressure is created between the measuring pin 4 and the surface 1 of the workpiece 2, as a result of which the measuring pin 4 maintains a constant distance 's' from the surface 1 of the workpiece 2. <IMAGE>
Patent GB-2152101-A (GB)
Title: Mine system
Inventor: SMITH DAVID ANTHONY
IPC: E21C41/20
Filed: 1983-12-31
Abstract: A mine system for extracting a pillar (4) of mineral defined between a pair of spaced apart roadways (1), comprising an armoured, scraper chain conveyor (10) extending along a face (9) of the pillar (4) from which mineral is to be extracted, a shearer type mining machine (23) provided with at least one spiral vane rotary cutting head (26) and mounted on and/or guided by the scraper chain conveyor (10) for reciprocal movement with respect thereto, a plurality of hydraulically powered, self-advancing mine roof supports (21) extending between the mine floor and mine roof and located side-by-side along the side (12) of the conveyor (10) remote from the face (9) and attached to the individual line pans (13) making up the conveyor (10) by one or more double-acting advancing rams, the scraper chain conveyor (10), beyond one end of the pillar (4) either being curved into or being adapted to discharge onto a further conveyor (29) extending along a roadway (1), in the direction of advance of the face (9), the roadway (1) extending transversely of a cross drive (2) towards which the face (9) is to be advanced, a plough device (30) located at the entrance to the cross drive (2) and adapted to plough mineral from the further conveyor (29) at the entrance to the cross drive (2), with a packing system (31) located in the cross drive (2) and adapted to pack the ploughed-off mineral into the cross drive (2) until the latter is filled, thus forming a roof supporting pack. <IMAGE>
Patent GB-2134725-A (GB)
Title: Cable clamp for electrically connecting a cable
Inventor: CORNELL PAUL ADRIEN
IPC: F16G11/00
Filed: 1984-01-23
Abstract: A cable clamping device includes a J-shaped female member (20) which pivotably receives the head (52) of a male clamping member (50) which defines a bore (56) and a window (58) extending through the tail of the member adjacent to the bore. The width of the window is greater than that of the bore. The female clamping member (20) defines a raised clamping surface (34) situated within the window (58) when the connector is closed. This raised surface (34) is provided with a flat ridge (36) and cooperates with the window to cause the free end of the cable to be spread laterally as the connector is closed, thereby to increase pull-out resistance. The connector is configured to ensure that two pairs of opposed clamping surfaces are provided, and that the clamping surfaces in each pair are axially spaced from one another ensuring a shearing rather than a pinching action. <IMAGE>
Patent GB-2137305-A (GB)
Title: Duct system
Inventor: GENAME JOHN L
IPC: F16L3/00
Filed: 1984-03-26
Abstract: A duct system suitable for retrofit installation in a building to contain and conceal pipes or wires, for example for cable television, consists of a plurality of aligned spaced-apart clips 15 for mounting on a wall of the building and having arms 19,20 to securely receive therein a length of wire or pipe, and a channel 10 adapted to snap-engage over and conceal the clips 15 and cover the wire or pipe W. Some of the clips may have a central peripheral rib 30 to engage one end of the channel for connecting linearly adjacent channels 10 and preventing lateral shifting of a channel. Others of said clips 15 may have a chamfered base with radial edges 18, permitting securing of the channel within the arc of said radial edges, and a gage tab 22 for ascertaining the position of the clip 15 relative to the channel. The system may also include formed corners having shoulders adapted for snap engagement in adjacent lengths of channel. <IMAGE>
Patent GB-2156944-A (GB)
Title: Monotube shock absorber
Inventor: POWELL GEORGE BERTRAM
IPC: F16F9/088
Filed: 1984-04-03
Abstract: An unpressurised monotube shock absorber that can operate in a substantially horizontal mode, and which requires major damping in one direction only comprises a cylinder 5 divided into two chambers by a piston 2 and valve 3, one chamber 14 being filled with fluid and capable of being subjected to high pressure by the piston/valve, the other chamber 11 being filled with fluid and a gas filled flexible cell 12 and capable of being subjected to low pressure by the piston/valve. Flow from the chamber 14 into the gas cell containing chamber 11 on compression is throttled by passage 2a, whereas, on movement in the opposite direction, the valve 3 opens to give free flow. In Fig. 2 (not shown) the gas cell is in the other chamber, and the extension stroke is damped. <IMAGE>
Patent GB-2136319-A (GB)
Title: Spraying equipment
Inventor: GILL DAVID CHARLES
IPC: B05B3/10
Filed: 1984-04-12
Abstract: Spraying equipment, for example for spraying herbicide, comprises a tubular support member (2) having a spraying head (6) at one end and a handle (12) at the other. A supply duct (38) and an electrical lead (36) extend through the interior of the support member (2) to supply fluid and electrical power to a rotary atomising disc (54) and a motor for driving the disc. The supply duct (38) communicates through the handle (12) with a container of the fluid, and the lead (36) is connected to a battery (10). <IMAGE>
Patent GB-2159876-A (GB)
Title: Catalytic treatment of i.c. engine fuel supply
Inventor: FRYER TIMOTHY MICHAEL WILLIAM
IPC: F02M27/02
Filed: 1984-06-01
Abstract: Fuel after being vaporised in a vessel A is passed through a catalyst, contained in vessel B, in order to convert it into aromatic hydrocarbons and hydrogen prior to being consumed by the engine C. The fuel and catalyst are heated by exhaust gases from the engine. The catalyst is regenerated by passing through it oxygen or a gaseous mixture containing oxygen. The vessel A contains alumina to remove lead from the fuel. <IMAGE>
Patent GB-2161776-A (GB)
Title: A conveyor system for feeding work stations
Inventor: SHEADER JOHN
IPC: B65G54/00
Filed: 1984-07-11
Abstract: A conveyor system comprises carriages (15-17) drive, e.g. by a linear motor, a prearranged sequence of steps to move workpieces in forward and reverse directions between work stations. Each work station has a park position and a work position and each carriage has a number of compartments for workpieces spaced apart at a pitch equal to the spacing between the park and work positions at each station. Transfer means at the work stations move workpieces between the carriage compartments and the park and work positions. The workpieces can be nuclear fuel pins mounted in carriers and the carriages shuttle to and fro between adjacent stations to move fuel pins and carriers in a forward direction and the return empty carriers in a reverse direction. <IMAGE>
Patent GB-2147740-A (GB)
Title: High-voltage electrical switch gear
Inventor: UTTING VICTOR JOSEPH
IPC: H01H33/98
Filed: 1984-09-12
Abstract: The switch gear comprises two ring switches (19 and 20) and a trippable transformer switch (21) mounted in a tank (17) which may be of plastics material and which is filled with SF6. Each switch has one or more fixed contacts (19a, 20a, 21a) depending on the number of phases controlled by the switch and a movable contact rod (19b, 20b, 21b) associated with each fixed contact and having a plastics cap (30) at its end. The fixed contacts of all three switches are supported by a common epoxy resin moulding (22) and each fixed contact is surrounded by a skirt (25) which extends integrally from the moulding beyond the fixed contact. At the free end of each skirt is a plastics nozzle (27) directed towards the fixed contact, the nozzle receiving its contact rod as a close fit. When one of the switches is opened pressurisation of the or each chamber (50), defined by the skirt and its cap, caused by high current arcing is followed by gas turbulence in the region between the fixed contact and the inner end of the nozzle to aid arc extinguishment. Furthermore, it is believed that arc extinguishment is further aided by oblation achieved by squeezing the arc between the plastics cap (30) and nozzle (27). <IMAGE>
Patent GB-2146616-A (GB)
Title: Lifting jack
Inventor: FINK BEINER WALTER
IPC: B66F7/04
Filed: 1984-09-14
Abstract: A mobile electrohydraulic lifting jack has a vertical column 71 supporting a guide trolley 72 having four wheels of which the two lower run on the front and the two upper on the rear side of the column, which comprises two vertical channel sections, the webs of which are parallel with the central plane 10 of the jack and extend at a distance therefrom while their flanges are aligned in pairs. The trolley is raised and lowered by an electrically-powered hydraulic piston-and-cylinder device 28 via cables 44, 46, 51, 52 passing over sprockets 38, 39 arranged in the central plane 10, the cables carrying a lug 52 which extends between plates 54, 56 at the front of the column. <IMAGE>
Patent GB-2152646-A (GB)
Title: Air weapons
Inventor: HUTCHISON ROY
IPC: F41B11/54
Filed: 1985-01-08
Abstract: An air weapon has a bolt 4 reciprocable to load a projectile (not shown) offered by a magazine (not shown) located in a receiver 10 in front of the bolt 4 in a first position of the bolt which will drive the projectile into the breach 7 when moving to a second position, compressed air from a reservoir being fed to the loaded projectile through a passage 8 in the bolt 44 to propel the projectile from the weapon and the bolt being returnable to the first position by means of a hand-piece 5 for reloading the weapon. <IMAGE>
Patent GB-2163019-A (GB)
Title: Frequency synthesizer
Inventor: LEWIS MICHAEL B
IPC: H03L7/20
Filed: 1985-07-05
Abstract: A frequency synthesizer has a reference crystal oscillator 50 connected to apply output to a comb generator 51 and a multiplier 52. The output of the multiplier 52 is connected to one input of a mixer 53, the other input of the mixer 53 being connected to receive input from a voltage control oscillator 54. The mixer 53 produces a difference signal output and applies the difference signal to one input of a further mixer 55, the other input of the mixer 55 being derived from a switchable filter 56. The mixer 55 produces a difference frequency signal to one input of a phase sensitive detector 59, the other input of the phase sensitive detector being connected to receive signals which are a sub-harmonic of the frequency outputted from switchable filter 56. The output of the phase sensitive detector is applied in a feedback path through an integrator 64 to the input of the voltage control oscillator 54 such that the output of the voltage controlled oscillator is stabilised in frequency. The comb generator 51 supplies switchable filter 56 to generate harmonic M.fr and supplies switchable filter 60 and divider 62 to generate sub-harmonic fr.L/K. The values of L and M are controllable 57, 61. <IMAGE>