baber/WOPTO huggingface dataset:
Patent GB-1413976-A (GB)
Title: Radar system
IPC: G01S13/72
Filed: 1972-12-19
Abstract: 1413976 Pulse radar HOLLANDSE SIGNAALAPPARATEN BV 19 Dec 1972 [23 Dec1971] 58596/72 Heading H4D In a radar system a first radar apparatus tracks a target at relatively long range and a second radar apparatus tracks the target at short range, the wavelength of the second radar apparatus, e.g. 8 mm., being such that when a target at low altitude is being tracked by the second radar, the interference caused by target echoes reflected by the earth's surface does not influence the tracking process. At long ranges however a longer wavelength (3À2 cms.) radar has to be used as the range of the shorter wavelength radar is limited. In Fig. 2, a feedhorn 13 of a 3-2 cms. radar illuminates twist reflector 11 after reflection from reflector 12. A receiver 16 processes the signals using monopulse technique to give elevation, azimuth and sum signals from aerial signals #E, #B, E, respectively. A switch S1 feeds the elevation and azimuth signals to servos 19, 18 respectively of the antenna. A switch S2 feeds a range error signal derived from the sum signal to range servo 20. The range serve applies a signal to pulse generator 36 to provide range gate signals P, P1, P2. A radiator 14 is rotated by motor 61 and feeds 8 mm. radar signals to reflector 11, the radiator 14 being at the reflector focus, i.e. this radar operates on the conical scan principle. The motor drives a generator 62 providing 90 degree phase displaced reference signals. Receiver 59 processes the signals received from the rotating feed 14. Generator 31 also range gates receiver 59 via a delay 79, the 3À2 cms and 8 mm. radars being pulsed with a reflective delay. Detectors 74, 75 are fed with signals from the receiver 59 and the reference signals from generator 62 and provide control signals for the antenna servos 18, 19 respectively. Switch S1 is operated to pass these signals when the target is within the range of the 8 mm. radar. If desired range tracking of the target may be continued to be performed by the 3À2 cms. radar or switch S2 can be operated so that the target is range tracked by the 8 mm. radar. As described the long-range radar is a conventional MTI Doppler radar with a coherent IF oscillator 34 and coherent detectors 25, 26, 39 (in the azimuth (B), elevation (E) and range (#) monopulse channels) feeding respective rangegated boxcar detectors 27, 28 and 41, 42, the B and E detectors 27, 28 being coupled via respective Doppler filters 29, 30 to corresponding phase sensitive detectors 49, 50 and the # detectors 41, 42 forming part of a conventional early/late gate auto ranging system producing a range error output from unit 45<1> which is applied to a corresponding phase sensitive detector 51 and a sum (reference) output from unit 45<11> which is applied as a reference input to the phase sensitive detectors 49, 50, 51 producing DC, B, E and range error signals. The receiver 16 also includes two AGC units 40, 48 and the receiver 59 includes an AGC unit 76.
Patent GB-1293838-A (GB)
Title: Production of aromatic hydrocarbons
Inventor: NAKAJIMA TOSHIYUKU
IPC: C07C7/00
Filed: 1970-12-10
Abstract: 1293838 Separating aromatic hydrocarbons NIPPON PETROCHEMICALS CO Ltd METALLGESELLSCHAFT AG and AIR PRODUCTS & CHEMICALS Inc 10 Dec 1970 [11 Dec 1969] 58813/70 Heading C5E  A process for separating the components of an aromatic feedstock comprises (a) fractionating the feed to give a (i) first stream containing the major amount of benzene, toluene and close boiling non-aromatics with a minor amount of C 8  aromatics, (ii) a second stream of mainly C 8  aromatics and (iii) a third stream of mainly C 9  aromatics; (b) solvent extracting (i) to give a non- aromatic raffinate and an aromatic extract; (c) fractionating the extract to -obtain pure benzene, toluene and C 8  aromatics; (d) extractively distilling (ii) to give pure C 8  aromatics and (e) hydrodealkylating (iii) to give a product mixture of benzene, toluene and C 8  aromatics, which may optionally be recycled to step (c). Hydrodealkylation may be effected at 500- 800‹ C. and 35-76 kg./cm.<SP>2</SP> gauge in the presence of H 2  and chrome-alumina, nickel, cobalt oxide or molybdenum oxide catalysts. Suitable solvents for both the extraction and extractive distillation are N-methylpyrrolidone, N - hydroxyethylpyrrolidone, butyrolactone, ethylene or diethylene or polyethylene glycols, DMF, sulpholane, DMS or a mixture thereof, optionally containing added water.
Patent GB-1333115-A (GB)
Title: Methods and devices for forming a stream of material consis ting of tangled shreds such as tobacco
IPC: B65B37/14
Filed: 1970-12-11
Abstract: 1333115 Feeding tobacco SERVICE D'EXPLOITATION INDUSTRIELLE DES TABACS ET DES ALLUMETTES 11 Dec 1970 [11 Dec 1969] 58846/70 Heading A2C In a device for forming a stream of material consisting of tangled shreds such as tobacco and having a substantially constant density of the type in which a reserve supply of material 13 having a substantially constant volume is formed by supplying the material 13 in the direction of the stream and discharging the material 13 in the same direction, the pressure a compressed gaseous fluid is exerted on the reserve supply of material 13 in the direction of the stream. The material 13 is fed over the bevelled terminal edge 11 of a vibrating plate 10, Fig. 4, to fall onto the top pair of pairs of rotating studded and vaned rollers 12 which forward it via another pair of rollers 12 into a rectangular vertical passageway (1) where it forms a reserve supply on top of a proportioning blade 16, Fig. 2. Air jets 15 from blowing devices 3, 4 serve to disperse the bank 14 of material 13 to level it off and keep it clear of a photoelectric level device 8, 9 that controls the material feed, and to produce an air pressure in the downwards direction - the rollers 12, in conjunction with the mass of material on them, serving to make the top portion of the passageway (1) relatively leaktight. The rotation of the studded and vaned rollers 12 also effects a compression of air. The air jets 15 are delivered alternately from the devices 3, 4. The blade 16 is actuable by a piston 17 to allow the material 13 to be compressed on a table 18 and to sever therefrom a dose of predetermined size. The vibrating plate 10 may be replaced by a conveyer belt in conjunction with either a set of distributing plates contained in concurrent planes, or by a vertical deflector plate disposed slantwise with respect to the rollers 12.
Patent GB-1323165-A (GB)
Title: Method and apparatus for testing logic functions in a multiline data communication system
IPC: G06F11/22
Filed: 1970-12-17
Abstract: 1323165 Testing logical circuits BURROUGHS CORP 17 Dec 1970 [2 Feb 1970] 59939/70 Heading G4A In an arrangement for testing a logic circuit digital data is applied to the circuit from a store. The store repeatedly applies a test word to the circuit, a switching circuit responsive to the test word causing the test word fed to the logic circuit input to be recirculated to the store. When a testing signal is applied to the switching circuit the output of the logic circuit is applied to the store in place of the logic circuit input signal. As applied to a multi-channel digital communication system the logic circuit is time-shared among the channels. A single channel only is interrupted during the test routine. The stored output of the logic circuit may be compared with the result that would be given if the circuit were functioning correctly. As described, a processor 10 passes data to and from control unit 12 which passes the data to line adapters 14, 16, each line adapter being associated with one data channel comprising input and output lines. Storage register 30 contains a number of control words, one associated with each line adapter. The control words are scanned sequentially by circuit 32 and read out to buffer register 28 and interface register 26. As a new control word is read in to register 28 the previous word is passed back to register 30 via logic circuit 36. Simultaneously with the scanning of register 30 the line adapters are scanned by circuit 38 to connect the lines in each channel in turn to input register 40 and output register 42. In response to the content of the input register 40 and of buffer register 28 the logic circuit 36 modifies the control word transferred from the buffer register back to storage register 30. Test routine.-At an appropriate instant in the scan cycle the processor 10 writes a test word in the buffer register 28 in place of the control word that would otherwise be placed there from register 30. The test word causes the logic circuit 36 to be by-passed and the word passes to register 30 unmodified by either the logic or the input register 40. By subsequently interrogating the content of buffer register 28 it can be determined if any errors have occurred between the test word written in to register 28 and that read out of register 30. To test the logic circuit the processor writes a selected word (or testing signal) into input register 40 and enables the logic circuit for one clock period. The word now passed to storage register 30 depends on the content of register 40 (i.e. the selected word) and of buffer register 28 (i.e. the test word) and also on any modification introduced by the logic circuit. The modified test word now cycles between registers 30 and 28 as before and can be interrogated by the processor to determine whether the logic circuit function was correctly performed.
Patent GB-1300939-A (GB)
Title: Magnetic phonograph pickup
Inventor: WESTERKAMP HUGO
IPC: H04R11/12
Filed: 1969-12-16
Abstract: 1300939 Pickup O HUBER [trading as HUBER & CO] 16 Dec 1969 [16 Dec 1968 13 Nov 1969] 61293/69 Heading H4J A magnetic pickup has a ferromagnetic element 8 (Fig. 4) operatively connected with a stylus 11. Two or more magnets 3 have similar magnet poles turned toward the element 8. At least one coil 18, 19 (Fig. 2) is mounted for excitation by a magnetic field induced in the element 8 by the magnets 3, then at least one coil 18, 19 being excited upon vibration of the element 8. As described, the pickup is stereophonic and the magnets 3 are embedded in a synthetic resin block 2 having a channel 4 the inner end of which is V-shaped. A brass sleeve 6 of square cross-section is rigidly held in the block 2. Two magnets 3 are on opposite sides of a plane of symmetry S. A rubber washer 7 resiliently secures the element 8. An S-shaped aluminium tube 9 fits on to element 8 and has a flattened end which receives the stylus 11. Non-magnetic wire 12 holds element 8 to sleeve 6. U-shaped magnetic strips 14, 15 each provide a pair of pole pieces 16, 17 and each is encircled by a coil 18, 19. The ends of the pole pices 16, 17 define a square cross-section. A housing 20 provides a magnetic return path for the magnets 3. In a modification a third magnet (3a) Fig. 6 (not shown) is perpendicular to the magnets 3. All the magnets have like poles directed to, and adjacent, the element 8. In another embodiment (Figs. 7, 8, not shown) two long magnets (3b) are at an angle of 30 degrees to the plane of symmetry of the pickup. The ferromagnetic element (8b) is formed of two parallel ferromagnetic strips (25). Another arrangement has a removable stylus assembly 1c (Fig. 9) with two magnets each having a bevelled corner (Fig. 10, not shown) adjacent the element 8. A housing 26 is formed of two members 27, 28 of plastics material held together by pins 29. A modification (Figs. 13, 14, not shown) of the embodiment of Fig. 9 has a pair of elongate magnets (3d) extending at an angle of 30 degrees to the plane of symmetry. In another modification of Fig. 9 (Figs. 15 to 18, not shown) cylindrical magnets (3e) are embedded in the two-part housing (37). Ferromagnetic cylinders (39) in the stylus assembly serve as pole pieces to focus the south poles of the magnets (3e) on the element (8). Reference has been directed by the Comptroller to Specification 897,323.
Patent GB-684762-A (GB)
Abstract: 684,762. Two-stroke engines. MILLER & CO., Ltd., H., and RUDAWSKI, T. July 5, 1950 [July 6, 1949], No. 17817/49. Class 7 (ii). In a two-stroke internal-combustion engine wherein an explosive mixture is fed to each cylinder through two opposed and piston-controlled inlet ports 7, 8, Fig. 2, and exhaust products are discharged simultaneously from the cylinder 'by the scavenging action of the flow of the mixture through two opposed and piston-controlled exhaust ports 5, 6, Fig. 1, the centres of'which are 'located in a plane at right angles to the plane of the inlet port centres; the mixture entering the' i cylinder through the two inlet ports 7 and 8 is combined in the vicinity of the piston into a single stream which loop scavenges the cylinder and during the reverse flow is divided into two separate streams which are directed towards the exhaust ports. The lower edges of both the inlet ports 7, 8 and exhaust ports 5, 6 are located at the same level whilst the inlet port 8 is of larger area and greater height than the other ihlet port 7, which latter communicates with the interior of the crankcase by a passage 9a, 9c, Fig. 2, the part 9c being inclined at an angle of 25-30 degrees to the longitudinal cylinder axis. Inlet port 8 also communicates with the interior of the crankcase, by a passage 10a, 10c and 10d which is of larger crosssection' than passage 9a, 9c, the parts 10c, 10d being, respectively, parallel and at right-angles to the longitudinal cylinder axis. The piston crown comprises a flat diametrical portion 11 and two surfaces 12, 13; Fig. 1, which are inclined to the portion 11 at an angle of approximately 40 degrees, so that at inner dead-centre the lower edges of the inclined. surfaces are in the plane containing the lower edges of the inlet and exhaust ports. A duct '14 is formed internally of the piston one end-opening through the flat portion 11 on the side of the inlet port 7 whilst the other end opens through the periphery of the portion 11 in order to register with inlet port. 8 at the inner dead-centre position; a pocket 15, Fig. 2 formed in the piston circumference and arranged in alignment with the duct 14 is adapted to register with the inlet port 7 at the inner deadcentre position. The two mixture streams firstly combine due to the angle of the pocket 15 and then the single stream tends to divide as it approaches the exhaust ports because of the inclined surfaces 12, 13. A combustion chamber 16 with an arcuate crown 16a and its longer axis in the plane of the longer axis of the flat piston portion 11 is formed in the cylinder head, the mouth of which chamber is flanked by inclined surfaces 17, 18, Fig. 1, that are parallel and co-extensive with the inclined piston surfaces 12, 13. A sparking plug opening 21, Fig. 2, provided in the cylinder head in alignment with the outlet end of duct 14 whilst another opening 22 may house a decompressor. The flow of mixture through the duct 14 exerts a cooling effect upon the piston.
Patent GB-715040-A (GB)
Abstract: 715,040. Ticket-issuing machines. BELL PUNCH CO., Ltd. June 30, 1952 [July 23, 1951], No. 17432/51. Class 106 (3) A ticket issuing machine comprises in combination means for feeding a web of paper through the machine in predetermined lengths at a time, for severing in succession each predetermined length of paper from the web, for receiving the leading end of each length of paper as it is severed and printing requisite data on the paper and for receiving at least the leading end of the printed length of paper during the printing operation and directing the same towards a stacker and thereafter feeding the printed length of paper to the stacker after the printing operation has been completed. At each machine cycle the ticket strip 3, Fig. 1, is fed one ticket length by rollers 1, 2 through a channel 35, past the guillotine 4, 5 into the channel 38 between the printing drum 15 and the impression roller 7, then between the rollers 9 and 10 to a stacker 11. The printing drum 15 carries printing members 6, 6<SP>1</SP>, 8 and 8<SP>1</SP> and is driven from an electric motor through a gear train 32, 14. As each ticket is printed its leading edge passes between the roller 10 and a flat 21 of the roller 9 which is driven through a Geneva mechanism so that when the ticket is printed the surface 22 of the roller 9 feeds the ticket into the stacker 11 where it is held by a resiliently mounted pivoted plate 12. The stacker 11 is movable in a shield 31 and is carried by an arm 24 pivoted on a spindle 25 and having a plate 27 carrying a roller 28 which co-operates with a rotating cam 29. The plate 27 carries a latch member 75 which, during a machine cycle is engaged by a latch member 74 so that the stacker 11 is retained at the bottom of the shield 31 and the tickets therein are inaccessible. A pinion 46 carrying a plate with two lobes 47 is rotated from the printing drum through gearing arranged so that after a predetermined number of revolutions of the drum 15, in this case after five tickets have been printed and stacked, a lobe 47 engages a pin 48 on a disc 49 which is moved clockwise to move a lever 71 and disengage the latch members 74, 75 whereupon the roller 28 is moved by the spring 30 to the bottom of the cam 29 and the stacker 11 is thereby raised to the top of the shield 31 so that the tickets may be manually removed. The latch members 74, 75 may be re-engaged by depression of a machine actuating key 13. Guillotine mechanism.-Once every machine cycle before ticket printing a roller 101 attached to the gear 32 rocks counter-clockwise a pivoted shoe 102 which moves a bell-crank 65 clockwise and a rod 67 carried thereby moves the blade 4 over the blade 5 to cut the ticket strip. The blade 4 is returned when the roller 101 engages the arm 104 of the bell-crank 65. Specification 715,041 is referred to.
Patent GB-2003861-A (GB)
Title: Production of di- and/or tri-chloro- cyanuric acids of improved crystal size
IPC: C07D251/36
Filed: 1978-08-11
Abstract: A continuous process for the production of di- and/or tri-chloro- cyanuric acids by the reaction of sodium di- and/or tri-chlorocyanurate with chlorine in which the aqueous reaction mixture is stirred to achieve improved crystal size of the product. The result of this improvement is that a single-stage chlorination is possible and blockage of the apparatus is overcome.
Patent GB-2007597-A (GB)
Title: Automatic Marking Device
IPC: B41K1/16
Filed: 1978-10-19
Abstract: An automatic marking device comprises a hand-operated component (1) enclosing a holder (3) bearing a return spring (2), and a casing (10) enclosing a marking unit (5) which comprises a number of wheels (5') bearing numbers, letters or other symbols and fitted on to a longitudinally split shaft (5'') containing positioning spigots (5''') and thrust springs (5'''') for the spigots, combined with change cams (15), the device further comprising a holder (9) for an ink pad and a repeat selector (11) controlling a fork or yoke (18) for automatically changing the mark that will be given by the device. The hand-operated component (1) has substantially the same cross-sectional dimensions as the casing (10) and is coupled thereto in a manner allowing it to be slid telescopically in the casing (10).   <IMAGE>
Patent GB-2040595-A (GB)
Title: Safety device for rotating electric machinery
IPC: H02K5/136
Filed: 1978-12-29
Abstract: A safety device for rotating electric machinery in which the machine is enclosed in a two part casing having input and output ports for cooling air. A fan 3 is mounted on the shaft of the armature 11, and is operable to draw cooling air into the casing through a first flameproof stack 5 and expel the heated air through a second flameproof stack 8. Air also passes to a terminal 9 to which a cable-gland 12 is secured. <IMAGE>
Patent GB-2014605-A (GB)
Title: Treatment of Pyrolysis Fuel Oil
IPC: C10G55/04
Filed: 1979-02-02
Abstract: The pyrolysis fuel oil hydrocarbon fraction boiling at above 200 DEG C produced during the production of olefines by the thermal cracking of a hydrocarbon mixture is subjected to solvent extraction using a low-boiling, non-polar hydrocarbon, poor in aromatics, as extraction agent to remove polymeric compounds which do not dissolve in the solvent. The solvent can be propane or a fraction formed in the thermal cracking step.
Patent GB-2041831-A (GB)
Title: Improvements in or Relating to Arrangements for Steering Fluid Jets
IPC: B41J2/09
Filed: 1979-02-14
Abstract: An arrangement for steering a fluid jet, for example an ink jet printer, uses a deflector 5 with a convex curved surface to deflect the fluid jet in a required direction by the Coanda or wall attachment effect. As shown the degree of deflection obtained can be varied by a piezoelectric crystal or bimorph element moving the position of the deflector 5. Alternatively the deflection can be altered by changing the frequency of vibration applied to the fluid jet which varies the amplitude of the perturbations in the jet and thus the interaction with deflector 5. <IMAGE>
Patent GB-2043501-A (GB)
Title: Abrading member
IPC: B24B13/01
Filed: 1979-02-28
Abstract: An abrading member particularly suited to grinding and smoothing lenses is in the form of a flexible pad. The pad may be a slotted disc which is flat on one side for attachment to a tool. The other side may be formed with spaced, upstanding projections, the ends of which act as operative abrading surfaces, or perforations may be made in the member. Abrasive particles are incorporated into the pad which is formed of plastics material. The pad is made by injection moulding a mixture of plastics material and abrasive particles in a mould of the required shape. <IMAGE>
Patent GB-2016213-A (GB)
Title: Electric drive unit
IPC: B60S1/16
Filed: 1979-03-01
Abstract: An electric drive unit, in particular for a windscreen wiper, comprising a motor housing (10) with a gear housing (12) secured thereon. The armature shaft (14) projects into the gear housing (12) and worm gear toothing (16) provided thereon co-operates with a worm wheel (13) mounted in the gear housing (12). The armature shaft (14) is guided in self-adjusting bearings (21, 22), provided on opposite sides of the toothing (16), whereby canting between the shaft and its guide bearings is reduced, if not eliminated, in an economic manner. <IMAGE>
Patent GB-2042936-A (GB)
Title: Method of and Apparatus for Electrodynamic Separation of Nonmagnetic Free-flowing Materials
IPC: B03C1/035
Filed: 1979-03-02
Abstract: Electrodynamic separation of nonmagnetic free-flowing materials is accomplished by feeding the flow of a material into the region of maximum intensity of a variable nonuniform magnetic field for inducing eddy currents in electrically conducting particles of the material being separated and producing electromagnetic forces which deflect the moving electrically conducting particles 3 from the direction of feed of the material being separated. The variable nonuniform magnetic field is generated by an electromagnet 1 having a closed magnetic core 5 with a magnetic air gap defined by pole pieces 2. The electromagnet pole pieces 2 are symmetrically divergent from the pole axes in a plane substantially perpendicular to the direction of feed of the material being separated. <IMAGE>
Patent GB-2018438-A (GB)
Title: Device for carrying out loading tests of containers
IPC: G01N3/08
Filed: 1979-03-14
Abstract: Device for carrying out loading tests of containers, characterized by comprising a frame-shaped chassis (1) with coupling means 11, Figure 2 for detachable cooperating engagement with the lower corners of the container in question, and from which a number of posts (6, 27) with power means (9, 8, 25) for the application of pressure and/ or pulling load to the container project in upwards direction. A carriage 21 is provided to load weights 24 into one end of the container. <IMAGE>