baber/WOPTO huggingface dataset:
Patent GB-873738-A (GB)
Title: A process for the production of carboxylic acids
Filed: 1959-12-29
Abstract: <PICT:0873738/IV (b)/1> <PICT:0873738/IV (b)/2> <PICT:0873738/IV (b)/3> <PICT:0873738/IV (b)/4> In a process for the production of a carboxylic acid in which an olefinic compound is reacted with carbon monoxide and water in the presence of a highly acidic inorganic compound as catalyst, the reaction mixture is separated into a phase comprising the carboxylic acid and a phase comprising the catalyst which is withdrawn from the separation zone, diluted with water or water-containing liquid, the organic material separated and removed, and the catalyst containing phase recycled to the system. Olefinically unsaturated compounds include propylene, butylene-1, and -2, isobutylene, branched or unbranched pentenes, hexenes, heptenes, octenes, nonenes, decenes, and higher alkenes, diisobutylenes and propylene tetramer, and cyclopentene and cyclohexene, and liquid hydrocarbon fractions from the thermal vapour phase steam cracking of paraffin wax, and in an example a mixture of 76% monoalkenes with 8 to 10 carbon atoms, with saturated hydrocarbons is used.  The reaction may be continuous or batchwise at a temperature between for example, -10 DEG  and 150 DEG C. with a carbon monoxide pressure above 20 atmospheres, and with pure carbon monoxide or carbon monoxide containing gases such as water gas, generator gas a coke oven gas.  The catalysts specified are phosphoric, sulphuric, hydrated boron trifluoride and complexes of boron trifluoride with phosphoric or sulphuric acid. Flow diagrams show: Fig. I the separation of the reaction mixture, in vessel 6, into two layers, the bottom layer comprising catalyst and by-products, which is in part returned to the reaction vessel 1, and in part mixed, 11, with water, again separated and the catalyst layer returned to the reaction vessel; Fig. II an additional stage in which the diluted catalyst layer after separation is passed to the crude carboxylic acid, 18, separated, 21 and then returned to the reaction vessel 1, while the purified carboxylic acid is withdrawn 23; Fig. III as in Fig. II with further washing with water 25, and separation of the carboxylic acid 28, and the wash is then passed to mixer 11; and Fig. IV a modification in which the separated dilute catalyst, 14, is returned to the reactor effluent 32.  Specification 871,278 is referred to.
Patent GB-874823-A (GB)
IPC: H04Q5/08
Abstract: 874,823. Electric calling systems. GENERAL MOTORS CORPORATION. March 14, 1960 [March 16, 1959], No. 8875/60. Class 40 (1). In a selective calling system in which the call signal consists of a series of integers each represented by a number of changes of frequency, the successive integers being separated by comparatively long gaps, the call signal is translated into a series of groups of pulses for stepping a solenoid-operated ratchet wheel 48, Fig. 3, and a series of longer pulses each having a duration equal to one of the groups of stepping pulses, the longer pulses serving to latch the ratchet wheel against backward rotation during each stepping group. The ratchet wheel is spring loaded to a home position and is stepped away from this position by a driving pawl 74 operated by the magnet 66 energized by the stepping pulses. The longer pulses are applied to magnet 84 to cause latch 80 to engage the teeth of the wheel by displacement of an arm 92. At the end of a correct group (4) of stepping pulses, the code pin 52 should be engaged by an abutment 98 on arm 92 to prevent backward rotation of the wheel between the first and second groups. The next group (3) brings code pin 54 to the retaming position and the third group (4) brings the contact 62 on bar 56 into engagement with contact bar 100 on the armature of magnet 84. If a group is received which is longer than that for which the device is set one of the code pins 52, 54 engages a flange on a lever 102 pivoted to arm 92. In the energized position of the magnet this lies in the path of the code pins and is displaced by them to cam the driving pawl 74 away from the teeth so that the wheel returns to its home position. The incoming signal consisting of a number of groups of changes between alternate frequencies is shown at 16 in Fig. 2. This is received by a transformer 12, Fig. 1, the output of which is connected to L-C circuits 14 tuned to the two frequencies. These are connected to two diodes and smoothing coils providing a positive output for one frequency and a negative output for the other as shown at 18, Fig. 2. A transistor trigger circuit then forms squared pulses 22 which are differentiated by a capacitor to provide pulses 24. Pulses 24 are passed to a mono-stable transistor multivibrator 30 providing groups of negative pulses 28 for inversion and application as pulses 32 to the stepping magnet 66, Fig. 3. Similar positive pulses to those 32 are applied to a condenser in block 36, Fig. 1, having a leak circuit so that its voltage follows the wave-shape 38, Fig. 2. This is applied to a transistor circuit acting as a threshold device to provide the long pulses 40 which energize the latching magnet 84, Fig. 3. A single change of frequency produces a resetting pulse to return the wheel to the home position. Specification 874,822 is referred to.
Patent GB-2201088-A (GB)
Title: Motor vehicle seat
Inventor: BUDDE ULRICH
IPC: B60N2/68
Filed: 1988-02-10
Abstract: A seat frame, in particular for a motor vehicle seat, is provided with two webs (2, 3) and a sheet metal pan (1). The webs (2, 3) have the same shape and are arranged at the sheet metal pan (1) parallel to the axis, on opposing side walls (25). The sheet metal pan (1) stands almost perpendicularly on both webs (2, 3), and the latter are formed from a profiled workpiece having at least one longitudinal groove which runs parallel to the longitudinal axis of the seat. <IMAGE>
Patent GB-2219040-A (GB)
Title: I.C. engine cylinder head
Inventor: FOX JEREMY
IPC: F02M69/08
Filed: 1988-05-25
Abstract: The cylinder head has an exhaust valve 6 and valve-controlled nozzles 2 and 2 for air and fuel respectively. <IMAGE>
Patent GB-2209273-A (GB)
Title: Shelf support bracket
Inventor: ALLPORT BRIAN CHRISTOPHER
IPC: A47B96/06
Filed: 1988-07-20
Abstract: A shelf support bracket comprises a support member 10 having a generally L-shaped cross-section with a first arm 11 for fixing substantially vertically against a wall surface 12, and a second arm 13 extending outwardly from the first arm and having a substantially horizontal upper surface 14 for supporting a shelf. The bracket further comprises a locking member in the form of a third arm 16 also extending outwardly from the first arm 11 of the support member, the third arm being at a fixed height above and substantially shorter than the second arm 13 and having on its underside a removable resilient gripping member 21 facing the upper surface 14 of the second arm 13 for engaging the rear edge of the top surface of a shelf supported on the said upper surface 14. <IMAGE>
Patent GB-2219073-A (GB)
Title: Portable apparatus for heating a substantially enclosed area
Inventor: HARESIGN DENNIS MILNE
IPC: F24H3/02
Filed: 1988-08-31
Abstract: Apparatus 10 for heating a substantially enclosed area such as a marquee or the like comprises at least one air heater 12 mounted in a trailer 11 and means for passing air from the area to be heated through the heater. Input and output ducts 15, 14 are provided and are arranged to extend between the warm air heaters 12 and the area to be heated. Thus, the apparatus 10 is arranged to be situated outside the area to be heated. The apparatus includes its own supply of fuel gas, 19 and may be thermostatically controlled. <IMAGE>
Patent GB-2230075-A (GB)
Title: Valve assembly
Inventor: FORREST ROBERT GEORGE
IPC: F16K35/06
Filed: 1989-02-18
Abstract: A valve assembly has a valve housing (10), a valve actuating member (48) rotatably mounted with respect to the housing for actuating a valve closure member. A locking means is provided on one of the member (48) and housing (10) and, as shown, on the valve actuating member, and comprises locking members (72) engageable with recesses (76) in the other of the member (48) and valve housing when the actuating member is in a given angular position with respect to the valve housing. This permits the actuating member to be locked in a fixed position, thus preventing unauthorised operation of the valve. It also allows an authorised person to check that the valve is in its correct position, since the valve actuating member will not rotate, it can be assumed that the valve is locked in its correct position. The valve assembly can be actuated without unlocking of the unlocking means by removal of locking screw (84) and relative rotation of housing parts (17, 46). <IMAGE>
Patent GB-2345952-A (GB)
Title: Missile guidance
Inventor: JAMES ENOCH
IPC: F41G7/30
Filed: 1989-03-23
Abstract: A system to enable a CO.  .  laser beam rider missile guidance system to be accurately collimated to one or more target tracking sensors such as to minimise the miss distance during the terminal phase of missile flight. This is done by gathering the projectile in a field of view of a first tracking system e.g. thermal imager 2, using said first tracking system to guide said projectile into a second narrower field of view of a second tracking system e.g. laser beam projector 5, determining the projectile boresight within said second FOV using target position error information from said first tracking system and correction for the relative positions of the two systems, and then guiding said projectile to the target with said second tracking system.
Patent GB-2236798-A (GB)
Title: Improvements in or relating to friction stay-hinges
Inventor: BUCKLEY JOHN EDWARD
IPC: E05D15/44
Filed: 1989-10-10
Abstract: A window friction stay-hinge of the kind comprising a track 10, a vent arm 16, a slider 12, a link 13, a control arm 17, and a further link 20 is characterised by a convexly shaped (as viewed from the slider) end cap 25 on the track 10 which comes into wedging engagement with a concavely shaped nose 24 on the vent arm 16 as the window is closed. The end cap 25 includes an arcuate portion which may be offset from the axis of the track. <IMAGE>
Patent GB-2226635-A (GB)
Title: Self centering device
Inventor: SUDDS COLIN DAVID
IPC: G01B5/20
Filed: 1989-11-29
Abstract: A self centring device has a master bogie (31), to which is attached a lever (32), and a number (preferably three) of slave bogies (33), the bogies (31, 33) being rotatably mounted on a body (30). A mandrel (34) mounted on the body (30) carries a slider (35) to which all the bogies (31, 33) are connected in such a way that rotation of the slave bogies (33) is synchronised with rotation of the master bogie (31). This latter is caused by the weight of a probe (15) acting on the lever (32). When all the bogies (31, 33) are riding along an inner surface (40) of a cylinder (70 eg, a gun bore, a centre line of the device lies on a centre line of the cylinder. <IMAGE>
Patent GB-2232840-A (GB)
Title: Level shifter with high common mode immunity
Inventor: SVERINSKY ALEX J
IPC: H03K17/16
Filed: 1990-02-05
Abstract: A self-powered circuit for controlling the on and off switching of a power semiconductor switch (11), is disclosed wherein the circuit is adapted to be immune to common mode voltage (Vcm) changes. The circuitry is configured with a transmitter (41-47) section which acts as a current sink in response to Vin control signals. The transmitter section includes diodes (45, 46) and resistors (42-44) selected and configured to alleviate unwanted loop currents. The transmitter section connects to a receiver section which increases the signal power and applies it as a drive to the power semiconductor switch (11). An isolated power supply powers the circuit from the same powerline which is switched by the power semiconductor switch (11).
Patent GB-2243489-A (GB)
Title: Antenna
Inventor: BUTCHER MILES EDWARD
IPC: H01Q19/02
Filed: 1990-02-19
Abstract: An axisymmetric antenna for transmitting radio frequency (RF) electromagnetic radiation over a desired radiation pattern, has a dish reflector (2), an aperture (A) for transmitting radiation to provide a first radiation pattern contribution, a feed (6) for providing the RF electromagnetic radiation to the aperture and blockage (4) for blocking radiation from being transmitted through the aperture (A), to provide a second radiation pattern contribution so that the combination of the first and second radiation pattern contributions substantially provides the desired radiation pattern. <IMAGE>
Patent GB-2229480-A (GB)
Title: Roll-up door joint construction
Inventor: CLAY ROY T
IPC: E06B9/15
Filed: 1990-02-27
Abstract: An improved joint construction (10) for a roll-up door includes upper and lower panel sections (12, 11), a hinge member (13) adapted to be longitudinally inserted into operative engagement with lower panel section (11), and a seal member (14) held within a recess in the upper panel section. The hinge member may be coated with a low friction material to facilitate its longitudinal insertion into operative engagement with the lower panel section, and to facilitate relative pivotal movement of the adjacent panel sections. The lower panel section has an upwardly-extending lug which is arranged to enter a recess in the upper panel section and compress the seal member (14) when the adjacent panels are in relation to one another. <IMAGE>
Patent GB-2244183-A (GB)
Title: Control circuit for a solid state switching device
Inventor: ROGERS BRIAN PETER
IPC: H02H3/093
Filed: 1990-05-16
Abstract: Solid state switching devices have the ability to switch off very rapidly when fault currents are detected. However, in certain circumstances the slower circuit breaker characteristic can be advantageous by avoiding unwanted switch off during short power surges or momentary overloads. A sample of monitored current is supplied 2 to an analogue comparator and logic circuit 1, which provides a digital sample to multiplexer 3. If no overload is detected, logic 1a causes the multiplexer to select a fixed input B0-B5 as output to a divider 4 so that a counter 5 counts down to zero at a fixed rate and switching device 7 is held on. Excessive current turns off the device 7 immediately. Moderate overloads cause multiplexer 3 to select the sample input A0-A5 to control divider 4 which controls the up count rate of counter 5 until a turn-off level is reached or the overload ceases and count down is resumed. <IMAGE>
Patent GB-2246025-A (GB)
Title: Locating permanent magnets secured by adhesive to yoke
Inventor: YOSHIDA YASUSHI
IPC: H02K1/17
Filed: 1990-05-21
Abstract: A dynamic electric machine has a yoke 2, permanent magnets 4 to be fixed to the inner surface of the yoke and a guide plate 8 disposed in the yoke and capable of guiding with projections 8b tie bolts which are extended axially through the yoke, said guide plate locating the permanent magnets by means of locating tabs 8c formed on the guide plate and capable of contacting end surfaces of the permanent magnets so as to correctly locate the permanent magnets with respect to the yoke. The locating tabs have adhesive-stopper portions 8d capable of receiving adhesive flowing down along the inner surface of the yoke during bonding of the permanent magnets to the yoke, thereby preventing the adhesive from reaching a bottom portion of the yoke and blocking drum holes 2c. <IMAGE>
Patent GB-2234614-A (GB)
Title: Machine translation apparatus
Inventor: KUGIMIYA SHUZO
IPC: G06F17/28
Filed: 1990-06-29
Abstract: A machine translation apparatus (in which the sentence construction of a source language entered by means of an input device is analyzed in order to generate the corresponding translated text after being converted into a sentence construction in a target language) comprises a device for determining whether or not a word string obtained from a sentence construction analysis is a proper noun with an acronym (by comparing the initial capital letters with the letters of the acronym, in the same order), a device for examining whether the (multi-word) proper noun is registered in a dictionary, and a device for outputting the corresponding term after it is translated into a target language, when the proper noun is registered in the dictionary, and for outputting directly the word string, without translating it, when the proper noun is not registered in the dictionary.
Patent GB-2246107-A (GB)
Title: Modified atmosphere pack
Inventor: PRUST MICHAEL WARD
IPC: B65D81/20
Filed: 1990-07-17
Abstract: A modified atmosphere pack has a meat product 1 vacuum skin packed on a tray 2 by means of a semi-permeable web 4, and that assembly is then enclosed by a post-heatshrunk horizontal form-fill-seal enclosure of an impermeable film 7 surrounding a modified atmosphere space 9. A font rim on the tray holds the film 7 clear of the tray base 6. <IMAGE>
Patent GB-2249285-A (GB)
Title: Selective indicia display kit
Inventor: REAY JOHN
IPC: G09F7/00
Filed: 1990-08-24
Abstract: A display kit comprises display cards 17, 18; 50, 51 and applying means such as a marker pen. The display cards 17, 18; 50, 51 have writing thereon comprising a plurality of alternative words and/or segmented figures of eight. The marker pen can be used to ink over some of the alternatives, such that, if the marker pen is a highlighting pen, these alternatives are emphasised, or if the marker pen is a dark colour, these alternatives are blotted out so that the other alternatives are emphasised. Segments 21 of the segmented figures of eight 22 can be inked over in the same way so that numbers other than eight can be represented. The display cards 17, 18; 50,51 may be retained behind transparent covers 14, 15; 41,42 on a support 10; 40. A magnetic support may be incorporated into the display means. <IMAGE>
Patent GB-2239407-A (GB)
Title: I.C. Engine exhaust filter cleaning
Inventor: SHINZAWA MOTOHIRO
IPC: F02D41/02
Filed: 1990-12-21
Abstract: The exhaust filter 3 of an I.C. engine 1 is cleaned by burning off the soot when the pressure drop across the filter indicates that cleaning is necessary. Control box 41 monitors the pressure drop, the engine speed, engine load, engine coolant temperature and temperatures at the inlet and outlet of the filter, calculates when a predetermined degree of clogging has been reached and controls engine air inlet throttle valve 6, valves 21 and 25 respectively upstream of and bypassing the filter, and a heater 29 to induce soot burning. The valves and heater are operated in various combinations depending on the engine speed and load. Thus the heater is not always used. <IMAGE>
Patent GB-2240421-A (GB)
Title: Microwave oven
Inventor: SONG DAE-HYUN
IPC: F24C7/02
Filed: 1990-12-28
Abstract: In a microwave oven the completion of a cooking process, either time- or temperature-controlled, is indicated by flag F2. Once this flag is set a timer D1 is started and the display of the oven is caused to show the time D1 elapsed since completion of cooking. If desired there may be further provision for a beep to sound every five minutes after completion, up to a maximum of twenty minutes. The user is thereby informed as to whether it is necessary to reheat the cooked article and is also periodically reminded of the completion of cooking. <IMAGE>
Patent GB-2248516-A (GB)
Title: Channel stop arrangement for semiconductor device
Inventor: SIN YUN-SEUNG
IPC: H01L27/108
Filed: 1991-01-11
Abstract: A semiconductor device includes a thick field oxide layer (3) in an isolation region (1) for defining an active region (A) and a substrate contact region (C) on a first impurity doped semiconductor substrate (1). A first channel stop layer (2) formed by doping the first impurity having a higher density than that of the first impurity of the substrate (1), is on a portion of the substrate contacting a lower surface of the field oxide layer (3), and there is further a second channel stop layer (8) formed by doping the first impurity having a higher density than that of the first impurity of the first channel stop layer (2), on a portion of the substrate horizontally spaced at a prescribed distance from the active region (A) and contacting the lower surface of the field oxide layer (3). <IMAGE>
Patent GB-2250147-A (GB)
Title: Solid state primary telephone protector
Inventor: SHANNON WILLIAM J
IPC: H01T4/06
Filed: 1991-11-18
Abstract: A telephone protector includes a rigid plastic packaged solid state switch 21 which is mechanically clamped by clamping means 23, 32, 33, 34 to prevent the switch from bursting to an open circuit condition. In the event of a very destructive surge, the switch 21 will close to shunt the surge to ground, and the switch will remain closed until a heat and/or current responsive fail-safe mechanism 6 operates to connect input pin 4 to ground pin 10. <IMAGE>
Patent GB-2253047-A (GB)
Title: Motor vehicle head lamp with an adjusting device
Inventor: JABLOTSCHKIN WERNER
IPC: F21V17/02
Filed: 1992-02-06
Abstract: The reflector (1) of a motor vehicle head lamp can be locating part (2) about at least one bolt axis by adjusting device is mounted so that it can rotate in an opening. The locating part is manufactured from plastics and is attached at one side to the reflector. On its other side the locating part carries a toothed wheel (8) which is secured to an adjusting bolt (5) engaging the reflector. The toothing (22) of the wheel is formed on an external circumferential region of the wheel and is complementary to the toothed portion of a cross-head screwdriver so as to be engaged by the screwdriver. A separate half-shell bearing member (15) open towards the teeth is rigidly attached to and supported by the locating part. The bearing member comprises a sheet metal part of conical shape corresponding to the conical portion of the cross-head screwdriver, and serving as a thrust bearing for said portion of the screwdriver. <IMAGE>
Patent GB-2254653-A (GB)
Title: Door closer.
Inventor: BISHOP ARTHUR EDGAR
IPC: E05F3/10
Filed: 1992-03-20
Abstract: A door closer, intended to be recessed into a floor for use with a swing door, has a main bore (11) in which is slidable a piston (12) which divides the bore (11) into two pressure fluid chambers (13,14), the piston being biased by a spring (15) to move a closer shaft, which is rotatable, in use, in response to the opening of a door with which the closer is associated. The closer has a housing (10) in which is only a single, longitudinal fluid flow passage (16) communicating with the chamber (13) by respective throttled passages (18, 19:21, 22) and with chamber (14) by passage (17). By providing either a further throttled passage (31) between the longitudinal passage (16) and fluid chamber (14) together with a poppet valve (34) and a pressure relief valve (46), or a poppet valve together with a solenoid, the basic closer with latch action closing can easily be adapted to provide hydraulic hold open, delayed action closing and electro-hydraulic hold open functions with only a single longitudinal fluid flow passage. <IMAGE>
Patent GB-2265822-A (GB)
Title: Toilet brush
Inventor: LARYEA MARGARET E
IPC: A47K11/10
Filed: 1992-04-03
Abstract: A toilet brush comprises a rigid handle (1) having a head (2) carrying a set of bristles including a first sub-set (3a) which extend back towards the user, so that in use they can engage under the rim of a toilet bowl, and a second sub-set (3b) which, when the brush is held at the same inclination, engage the walls of the toilet bowl, so that the walls and rim of the toilet are cleaned simultaneously. <IMAGE>