baber/WOPTO huggingface dataset:
Patent GB-1316306-A (GB)
Title: Electrostatic image development apparatus
IPC: G03G15/08
Filed: 1970-10-14
Abstract: 1316306 Electro-photography XEROX CORP 14 Oct 1970 [20 Oct 1969] 48785/70 Heading G2H A toner/carrier developer is passed in turbulent flow along a confined development path at approximately the same speed as an imaging surface on a drum 12 by an oscillating electrically biased arcuate member 15, having vanes 16 and shafts (30, Fig.3) (not shown) eccentrically mounted on pulleys (32), and electrically biased vibrating electrodes 17. The carrier particles are recirculated by passage round the back of the arcuate member, excess toner supplied from a sump 23 through a screen 21, and a controlled quantity of toner removed through screen 21 to a collection chamber 24 and recycled via a transport device 27 to sump 23. The quantity of toner passing into chamber 24 is controlled by application of an electric field across screen 21 by an electrode 25.
Patent GB-1192148-A (GB)
Title: The Attachment of Vehicle Wheels
IPC: F16B43/02
Filed: 1968-10-16
Abstract: 1,192,148. Securing vehicle wheels to hubs. MICHELIN & CIE (COMPAGNIE GENERALE DES ETABS. MICHELIN). 16 Oct., 1968 [17 Oct., 1967], No. 49016/68. Heading B7C. [Also in Division F2] In an arrangement for attaching vehicle wheels 8 by a nut 1, bolt 2 and a centring ring 3 of bi-convex or plano-convex shape 4, 9 and having a bore 10 for the passage of the bolt shank 2A the arrangement is such that the ring 3 contracts inwardly to grip the bolt shank 2A as the nut is tightened. The bore of the ring 3 may or may not be reduced in diameter and slots 6 may or may not be provided to facilitate inward movement of the ring 3 so as to grip the shank 2A.
Patent GB-1468715-A (GB)
Title: Sweeping machines
IPC: E01H1/08
Filed: 1974-11-13
Abstract: 1468715 Sweeping machines JUNGHEINRICH UNTERNEHMENSVERWALTUNG KG 13 Nov 1974 [17 Nov 1973] 49159/74 Heading A4F [Also in Division E1] A sweeping machine comprises a cylindrical rotary brush 3 for sweeping dirt into a dirt container 2 pivoted to carriers extensible out of the body of the machine. In the illustrated self-propelled machine, the dirt container 2 is journalled in open-topped bearings 26 in rails 18 and 19 Fig. 4 (not shown) slidable rearwardly of the machine in frame members 6 to a position in which the container 2 may be inverted as shown for emptying. Rollers 21, 22 mounted on the rails 18, (19) guide the rail movements in the members 6. When in position in the machine, the dirt container 2 is lifted by manually operable pivotable cams (37), 37' so that the edge of the container opening is pressed against a sealing member 47 around an opening leading to a filter system 11 through which air is drawn from the vicinity of the brush 3 by a suction fan 10.
Patent GB-966826-A (GB)
Title: Water-insoluble disazo dyestuffs and process for their manufacture
IPC: C09B31/06
Filed: 1962-12-31
Abstract: The invention comprises disazo dyes, free from acid water-solubilizing groups, of formula R1-SO2-X-A-N = N-B-N = N-D wherein R1 and A are benzene residues that may be substituted, X is an oxygen atom or a residue of formula <FORM:0966826/C4-C5/1> wherein n is an integer from 1-5, R is a p-phenylene or -naphthylene residue and D is a benzene residue containing an hydroxyl group in p-position to the azo group.  The dyes are prepared by diazotizing an aminoazo dye of formula R1-SO2-X-A-N = N-B-NH2 and coupling with a hydroxybenzene in p-position to the hydroxyl group.  The dyes can be used to colour hydrophobic fibrous materials, e.g. cellulose ester, cellulose ether, polyamide, polyurethane, polyvinyl chloride and especially polyester fibres in yellow to red shades. In examples the dyes benzene sulphonic acid-41-amino-anilide --> 2,5-dimethyl-aniline --> phenol and benzene sulphonic acid-41-aminophenyl ester --> 3-methyl-aniline--> phenol are prepared by the intermediate aminoazo dyes being isolated.  Many alternative reactants are specified.
Patent GB-1518127-A (GB)
Title: Air-fuel intake apparatus for a two-stroke engine
IPC: F02B77/08
Filed: 1975-12-01
Abstract: 1518127 Spray carburetters HONDA GIKEN KOGYO KK 1 Dec 1975 [7 Dec 1974] 49292/75 Heading F1H An air-flow path 46, 50 to an air inlet 44 of an idling mixture passage 32 contains a valve 56, 58, which is permitted to close by a bi-metallic strip 62 when a predetermined engine temperature is exceeded thereby to enrich the mixture supplied to the engine.
Patent GB-1404474-A (GB)
Title: Coupling between edge portions of two members made from pliable sheet and plastics sheet respectively
IPC: B65D5/64
Filed: 1972-10-26
Abstract: 1404474 Coupling lids and trays SPRINTER PACK AB 26 Oct 1972 [1 Nov 1971] 49513/72 Heading B8P [Also in Division F2] A lid 56 and a tray 54 are coupled by a tongue 30 cut from the lid 56 engaging in a recess 14 formed on the inside of the tray 54, and an end edge 27 of an opening which is formed as a consequence of the cutting-out of the tongue 30, engaging behind an end wall 20 of a projection which is formed on the outside of the tray 54 as a consequence of the recess 14. The end wall of the projection includes a hook-like projection (22, Figs. 5 and 6). The side margins (36, Fig. 5) of the tongue 30 may be folded out of the plane of the tongue to lie against the side walls of the recess 14, alternatively the side edges (76, 78, Fig. 8) of the tongue (79, Fig. 8) may be received in grooves (82, 84, Fig. 8) in the side walls (72, 74, Fig. 8) of the recess. The side walls (72, 74) of the recess and the side edges (76, 78) of the tongue may converge towards the end wall of the recess and the end edge of the tongue respectively. The lid is of carton board or plastics sheet material and the tray is of plastics sheet. The tray may be compartmented.
Patent GB-495360-A (GB)
Abstract: 495,360. Igniting gas burners. C.A.M.A. PATENTS, Ltd., and BANNISTER, A. R. Feb. 12, 1938, No. 4481. [Class 75 (iii)] Gas issuing from a nozzle 10 mixes with air and part of the mixture enters the offset end 6 of a chamber 5 for ignition by a catalyst 7, the flame flashing back to the nozzle. As shown, the block 1 is clamped on the gas supply pipe 13 of a main burner 14, which is ignited by the nozzle 10. The catalyst 7 is supported in a wire frame 8 mounted in grooves 9 in the chamber 5. A mixture of gas and air may be supplied to the nozzle.
Patent GB-1134927-A (GB)
Title: Automatic coupling means for railway vehicle service line connections
IPC: B61G5/08
Filed: 1966-11-04
Abstract: 1,134,927. Railway vehicle automatic couplings. MIDLAND-ROSS CORP. 4 Nov., 1966 [5 Nov., 1965], No. 49582/66. Heading B7T. A rigid jawed coupler slidably supports a service connector 2 by means of a bell-crank lever 5 pivoted at 11 and a piston 6 acted upon by a spring 9 in a cylinder 7 pivoted at 10. The members 5 and 6 are pin and slot connected at 16, and a cam 12 pivoted at 13 supports levers 3 and 4 which when the wing 23 of a mating coupler swings the cam, operate to move the toggle linkage 5, 6 overcentre to move the connector 2 longitudinally into engagement with a similar connector on the mating coupling. When uncoupling, Fig. 4, a lug 24 on the withdrawing buffing jaw abuts against and swings levers 17, 18 which in turn pivot the cylinder 7 about its pin 10 to cause the members 5, 6 to move back and withdraw the connector 2. In the coupled up position the cam 12 is not engaged by the wing 23, the connector being held in a forward position by the spring 9 only, whilst in the uncoupled position of Fig. 1 the spring 9 holds back the connector 2.
Patent GB-1284630-A (GB)
Title: Improvements in or relating to d.c. converter circuits
IPC: H02M3/28
Filed: 1970-10-20
Abstract: 1284630 D.C.-D.C. converters SIEMENS ALBIS AG 20 Oct 1970 [10 Nov 1969] 49649/70 Heading H2F [Also in Division G3] A D.C.-D.C. converter comprises a circuit 1 for suppling a pulse-width stabilized rectangular wave to the primary of a transformer 20 the secondary voltage of which is half wave rectified at 22 and feeds an inductance/capitance smoothing circuit 24, 25. A secondary winding 9 on inductance 24 supplies a further rectifier 35, arranged to be conductive when rectifier 22 is blocked, a further rectifier 23, connected as shown, also being conductive when rectifier 22 is blocked. The circuit is preferably used to supply a positive voltage U3 to the resonator of a klystron 6 and a negative voltage U4 to the resonator. Both supply voltages are stabilized by comparison at 13 with a reference voltage 14, the resultant being used to control the unstable period of a monostable multivibrator 12 which controls the duty cycle of a switching device 15 connected between the input D.C. supply UB and the primary of transformer 20.
Patent GB-1319152-A (GB)
Title: Engine overrun preventing device for internal combustion engine
IPC: F02D41/02
Filed: 1970-10-20
Abstract: 1319152 Regulating I.C. engine fuel injection; spray carburetters NISSAN MOTOR CO Ltd 20 Oct 1970 [22 Oct 1969] 49679/70 Heading F1B [Also in Division G1] In an I.C. engine fuel supply system, the fuel supply is shut-off when the engine speed reaches a first predetermined value, and the supply is restored when the engine speed falls to a second predetermined value below the first value. As shown, in a fuel injection system, pulses triggered by engine rotation are applied to an anti-overrun device 10 which then provides a D.C. voltage representing engine speed which is compared with a threshold value. When the engine speed reaches the first predetermined value the injection valve actuation circuit 23, Fig. 2 (not shown), is rendered inoperative. The device 10 may also. be applied to a carburetter type fuel supply system, Fig. 5 (not shown). The device 10, Fig.3 (not shown), includes a flip-flop which changes state when the engine speed reaches the first predetermined value and returns to its other state to restart fuel supply when the engine speed decreases to a value lower than said predetermined value.
Patent GB-1074963-A (GB)
Title: A device for controlling article handling apparatus
IPC: B65G47/08
Filed: 1963-12-17
Abstract: 1,074,963. Control chains. FMC CORPORATION. Dec. 17, 1963 [Dec. 26, 1962], No. 49761(63.: Heading F2Q. [Also in Division H2] A palletizing machine 10 more particularly described in Specification 1,074,964 is controlled by a programme chain 51 having links 85 each of which has arms 86, 87, 88. Aligned holes in adjacent links receive a switch control rod 90 having portions 90A, 90B projecting in opposite directions from the associated links. Rollers R0, R1-8 are mounted on each rod and are locked on the rod by O-rings 92. Sprockets 93 are secured to a shaft 94 and the sprocket teeth are engaged by the rollers RO. The switches actuated by the rods 90 are removably mounted (see Division H2).
Patent GB-1224067-A (GB)
Title: Process and apparatus for the production of calcined gypsum
Inventor: FIETSCH GUNTER
IPC: C04B11/036
Filed: 1968-10-21
Abstract: 1,224,067. Calcination of gypsum. INSTITUT FUR ZEMENT. 21 Oct., 1968, No. 49872/68. Heading C1A. In the calcination of gypsum finely-ground crude gypsum is fed to a calcination chamber where it floats down on, and is calcined by, a counter current of a hot, moistened, gas and air mixture. The calcined particles are fed to a dehydration bunker where final dehydration occurs automatically due to the heat of the process, but is also encouraged by a branched feed of hot gas from the main stream. As shown in the Figure, the crude gypsum is supplied by a hopper 1 and a supply means 2, to the calcination chamber 5, down which it passes. The hot gas for calcination is generated at 10 and mixed with moist air, from supply 14, in pipe 12. After calcination the product is dehydrated in the bunker 7, the branch feed of hot gas being supplied by pipe 15. Grinding can take place before dehydration, in the grinding means 16. Gradation of the product can be achieved by seives in chamber 5, or after removal from bunker 7.
Patent GB-1371098-A (GB)
Title: Electrodeless discharge tube arrangements
IPC: H01J65/04
Filed: 1971-09-29
Abstract: 1371098 Metal-vapour lamps EMI Ltd 29 Sept 1971 [21 Oct 1970] 49958/70 Heading H1D In an arrangement including an electrodeless discharge tube 1 mounted for excitation by microwave energy, the mounting includes a vessel having an outer portion 3 and an inner portion 2, within which inner portion is positioned the whole of the discharge tube 1, a heat transfer fluid flow path through the vessel to the tube being defined for that part of the path adjacent the discharge tube by said inner portion 2 of the vessel. Heat may thus be supplied to the tube by means other than microwave energy, so enabling a smaller power supply to be used. Microwave energy from a supply 8 is fed through a coaxial cable 9 to a re-entrant cavity resonator 7 having an inner wall 2 formed by two metal tubes 2a and 2b joined by a quartz tube 2c and an outer wall 3 formed by a metal tube having an aperture opposite the tube 2c leading to a window 10. The resonator is completed by perforated annular metal plates 4 and 5 and may be provided with tuning means. Tube 2a is closed by a perforated insulating disc 11 having a depression for locating an extension 12 of the discharge tube 1. A thermally insulating jacket 14 surrounding the wall 3 is extended to form a cover 15 having an aperture closed by a plug 16 carrying spring fingers 17 which engage an extension 13 of the discharge tube 1. A fan heater 19 in a housing 18 impels heated air or other gas through the perforations in disc 11 thus heating the discharge tube 1 to vaporize and prevent condensation of an element in the filling whose characteristic radiation passes through the window 10 and a flame space 20 to a detector 21 connected to a meter 22. The microwave energy may be modulated to provide a modulated light output.
Patent GB-1354951-A (GB)
Title: Slide carrier cycling mechanism for slide projectors
IPC: G03B23/04
Filed: 1971-10-27
Abstract: 1354951 Optical projection apparatus GAF CORP 27 Oct 1971 [28 Oct 1970] 49998/71 Heading G2J A slide changing mechanism for a magazine slide projector includes a motor (not shown) driving a rotatable clutch disc 36, a disc 41 having a crank pin 43 which is axially movable into contact with the disc 36 when annular solenoid 52 is energized and a single cycle mechanism parts 48, 49, 50 which holds the discs 36, 41 in contact until one slide changing cycle has been completed. As shown in Fig. 2 one revolution of disc 41 causes the pin 43 to ride in slot 23 and move a slide carrier through the cycle comprising moving a slide from the gate to the magazine 6 and vice versa. The motor drives clutch disc 36 by means of belt 25, pulley 26, shaft 24 worm gear 30 and gear 31. The disc 41 is held in the position shown in Fig. 4 by the force of spring 47. However when the solenoid 52 is energized the disc 41 is magnetically attracted against the action of the spring 47 so that sprocket 51 may engage one of the tabs 40 on the constantly rotating disc 36. Since the solenoid 52 is only energized for about half a second the single cycle mechanism is provided to keep the discs 36, 41 engaged. From Fig. 4 it can be seen that when the disc 41 is moved axially, its shaft 42 can slide within the shaft 32 carrying the gear 31 and disc 36. Attached to the end of the shaft 42 is a plate 48 having a stop 49. As shown in Fig. 4, when the slide change mechanism is not operating the stop 49 rests in a notch 50. However when the shaft 42 is moved axially by the solenoid 52 and then rotated by engagement of discs 36, 41 the stop 49 is lifted clear from the notch 50 and is unable to return to it (under the action of spring 47) until the disc 41 has performed one revolution. Hence one slide changing cycle is performed completely. Alternatively a pin and slot may replace the parts 49, 50 or the solenoid may be energized for as long as it takes to complete one cycle. The motor which powers this slide changing mechanism operates continuously and may be used to power a cooling fan.
Patent GB-1192857-A (GB)
Title: Inflatable Escape Chute
IPC: B64D25/14
Filed: 1968-10-22
Abstract: 1,192,857. Inflatable escape shoots. B. F. GOODRICH CO. 22 Oct., 1968 [23 Oct., 1967], No. 50150/68. Addition to 1,172,802. Heading B7J. The inflatable escape shoot of the parent Specification is modified or improved to accommodate two passengers entering the shoot simultaneously side-by-side, by forming the slide member 62 of five parallel inflatable tubes 72, 74, 76, 78 and 80, the central tube 76 gradually increasing in diameter from that of the tubes 78, 80 to that of the tubes 72, 74 from the top of the slide member 62 to a point intermediate the length of the slide member 62, so as to divide the lower part of the slide member 62 into two distinct slide channels. Slide covers 82 and 84 are smoother near the top of the shoot than near the bottom. One or both guide tubes 68, 70 may extend the full length of the shoot, and only a single guide tube may be provided. The shoot is fabricated from rubber-coated fabrics. Reference has been directed by the Comptroller to Specification 770,587.
Patent GB-1130499-A (GB)
Title: Process for the production of 5-nitro-1,4-dihydroxy-anthraquinone
Inventor: SCHMITZ REINHOLD
IPC: C09B1/02
Filed: 1967-10-03
Abstract: 1,130,499. Anthraquinone compounds. FARBENFABRIKEN BAYER A.G. 3 Oct., 1967 [6 Oct., 1966], No. 45018/67. Heading C4P. 5 - Nitro - 1,4 - dihydroxy anthraquinone is produced by nitrating 1-hydroxy-10-chloro anthraquinone-(4,9) in an inorganic acid to give 1 - hydroxy - 5(or 8) - nitro anthraquinone - (4,9) which is then hydrolysed. The acid may be sulphuric acid which may contain SO 3 , chlorosulphonic acid and/or nitric acid. Boric acid is advantageously also present. The nitro group may subsequently be reduced to an amino group.
Patent GB-1287317-A (GB)
Title: Novel adamantylurea derivatives and a process for the preparation thereof
IPC: C07D211/44
Filed: 1970-10-23
Abstract: 1287317 Adamantylurea derivatives CILAG CHEMIE AG 23 Out 1970 [28 Oct 1969 2 Sept 1970] 50490170 Heading C2C The invention comprises adamantylurea derivatives of the Formula Ib wherein R 1  and R 2  each are H or C 1-12  alkyl; Alk is C 1-10  alkylene; R 3  is H, C 1-12  alkyl, di- (C 1-5  alkyl) amino-C 1-5  alkyl, benzyl, 4-(N- methyl)piperidyl, or a group of the formula R<SP>1</SP>-(O-R<SP>11</SP>) n -R<SP>111</SP>-, in which R<SP>1</SP> is CH 3  or CH 2 CH 3 , R<SP>11</SP> and R<SP>111</SP> each are -CH 2 - or -CH 2 -CH 2 -, and n is 0 to 3; provided that when one of R 1  or R 2  is an alkyl group of more than 5 carbon atoms, then the other group is H or C 1-5  alkyl, Alk is CH 2  and R 3  is C 1-5  alkyl, the therapeutically active acid addition salts of the foregoing compounds which contain a basic nitrogen, and N - (1 - adamantyl) - N<SP>1</SP> - (ethoxycarbonyl)-urea. The latter compound is prepared by reacting ethoxycarbonyl isocyanate with 1-amino adamantane in an anhydrous organic solvent. Compounds of Formula Ib above may be obtained by one of the following methods: (a) reacting 1-adamantane isocyanate with compounds of the formula (b) reacting the appropriate aminoadamantanes with compounds of the formula (R 3  is not equal to H) in anhydrous organic solvents; (c) reacting the appropriate compound of the formula AdN(R 1 )COCl (Ad is 1-adamantyl) with compounds of the formula HNR 2 -Alk COOR 3  (R 3  is not H) in anhydrous organic solvents; (d) reacting the appropriate aminadamantanes with compounds of the formula ClOC-NR 2 -Alk COOR 3  (R 3  is not H) in anhydrous organic solvents, and, if desired, esterifying the compounds thus obtained in which R 3  is H, or hydrolysing the compounds thus obtained wherein R 3  is other than H. The following intermediates and starting materials are prepared: N - (1 - Adamantyl) - N - ethylcarbamoyl chloride, N - (1 - adamantyl) - N - methylcarbamoyl chloride, N - (ethoxycarbonylmethyl)-N- methylcarbamoyl chloride, N - (1 - adamantyl)-N- propyicarhamoyl chloride, N - (1 - adamantyl)- N - octylcarbamoyl chloride, N - (1 - adamantyl) - N<SP>1</SP> - (chlorocarbonylmethyl) urea, N - ( 1 - adaman - tyl) - N - (α - chlorocarbonylethyl) urea, 1-octanoylaminoadamantane, 1 - (octylamino) adamantane, pentylaminoacetonitrile, pentylaminoacetic acid hydrochloride, ethyl pentylaminoacetate, ethyl octylaminoacetate, 1 - (sec.- butylamino) adamantane, 3,6 - diazaheptyl isocyantoacetate, 3,6,9,12- tetraoxa - trideconyl isocyanatoacetate and 2-dimethylaminoethyl isocyantoacetate hydrochloride. Pharmaceutical compositions have anti-viral activity, contain the above novel adamantane derivatives and pharmaceutically acceptable carriers.
Patent GB-1313983-A (GB)
Title: Dithioketals and the manufacture thereof
IPC: C07D339/06
Filed: 1971-11-01
Abstract: 1313983 Substituted phenyl hydrazones UPJOHN CO 1 Nov 1971 [27 Nov 1970] 50597/71 Heading C2C Compounds of formula where R a  and R b  are independently C 1-4  alkyl or together form an unsubstituted or C 1-4  alkyl substituted ethylene or methylene group with 2-9 carbon atoms; Y is halogen, or C 1-4  alkyl, haloalkyl, alkoxy or alkylmercapto; n is 0-5; z is Cl or Br; and X is S, SO or SO 2 , may be prepared in the -S- form by condensing an alkyl mercaptan or alkanedithiol with a glyoxoyl halide 1-phenylhydrazone in the presence of an acid catalyst, e.g. p-toluene sulphonic acid or BF 3  etherate. The S group may be oxidized to SO or SO 2  with peracetic or perbenzoic acid. The compounds are pesticides.
Patent GB-1167548-A (GB)
Title: Magnetic Switch suitable for use in a Keyboard
Inventor: HOUCKE GEORGE PAUL
IPC: H01H13/70
Filed: 1966-11-11
Abstract: 1,167,548. Telegraphy. WESTERN ELECTRIC CO. 11 Nov., 1966 [15 Nov., 1965], No. 50642/66. Heading H4P. [Also in Division H1] A keyboard sender has sealed magnetic reed contact units A ... Z operated by permanent magnets attached to the keys and restrained in the inoperative position by magnetic keeper circuits which may be rendered ineffective by flux due to energization of coils 304... 306. Operation of a key closing contacts such as 310 energizes selected coils such as 2A to 6A, 8A and ST of magnetic cores to move them in one direction and raise the potential of 311 to a value at which a four-layer diode 316 ceases to conduct. When sufficient time has passed for contact chatter to cease a capacitor 315 will have discharged sufficiently to allow the diode 316 to send a current surge through the coils in series with the closed key contacts. The output from the magnetic cores is fed to a shift register 335 whose output speed is controlled by a selected clock 345, 346 or 347 through a "flipflop" 341. Whilst the code is transmitted from the register 335 an AND gate 336 is earthed and through inverters 337and 343 de-energizes coils 304, 305, 306 so that the magnetic keeper circuits tend to restrain the unoperated keys. The register shown can be used for two speeds of Baudot code (start spacing element, 5 information elements and a 1¢ duration marking stop element) or one speed of ASC II code (start spacing element, 8 information elements and two stop or marking elements).