baber/WOPTO huggingface dataset:
Patent GB-1279079-A (GB)
Title: Compensating fuel metering for exhaust gas recirculation
Inventor: MOULDS JOHN WILLIAM
IPC: F02M25/07
Filed: 1971-04-19
Abstract: 1279079 Regulating I C engines GENERAL MOTORS CORP 19 April 1971 [21 May 1970] 25840/71 Heading F1B I.C. engine has a throttle-controlled air inlet passage, a fuel delivery system, and a valvecontrolled exhaust gas re-circulation passage connecting the inlet passage to an exhaust passage, the fuel system controlling fuel delivery in accordance with the pressure existing downstream of the throttle valve, the amount of fuel delivered tending to increase as the absolute pressure downstream of the throttle increases, and the fuel system also including a control means which tends to reduce the amount of fuel delivered as the amount of exhaust gas re-circulated increases, to compensate for the partial pressure due to the exhaust gas. The air inlet includes two passages 14 each having a butterfly-type throttle valve 16, the valves being mounted on a common spindle 18. Exhaust gas to be re-circulated enters a passage 24 from an inlet 72, and the amount which passes to the inlet passages 14, via an outlet passage 28, is controlled by a butterfly-type valve 36, mounted on a spindle 38. This spindle projects through the wall of the gas re-circulation passage and carries a lever 44 on which is a cam follower roller 68, which engages a series of cam surfaces 70a, b, c, d and e formed on a plate 56. Two bolts 52 pass through a slot 54 along the plate, the plate being slidable over the bolts. A third bolt 58 is also slidable along the slot and is connected by a link 62 to a lever 64 mounted on the throttle spindle 18. The lever 44 is spring- biased to rotate anti-clockwise, as seen in Fig.2 (not shown) and the plate 56 is biased leftwards by a spring 66. As the throttles 16 move in the opening direction, the plate 56 is moved to the right so that the cam surfaces move past the roller 68. For the first 5 degrees of movement of the throttles, the valve 36 remains closed. Cam portion 70b then begins to open the valve 36 which reaches its fully open position when the throttles have opened 14-20 degrees. The roller 68 then moves down cam surface 70d so that valve 36 is closed when the throttles have opened 34 degrees. A second cam surface 87 formed on the plate 56 engages a roller 90 mounted on a lever 88 which controls a unit 92 to vary an impedance in a fuel metering circuit. The metering circuit includes a solenoid-operated injection nozzle which sprays fuel on to the back of an inlet valve. The solenoid is energized when a transistor in parallel with the solenoid coil is cut-off. The period of time for which the transistor is cut-off is determined by a circuit which applies a negative going voltage pulse to the base of the transistor, the impedance 92 being part of this circuit.
Patent GB-479693-A (GB)
Title: Improvements in or relating to apparatus for measuring predetermined quantities by weighing
IPC: G01G23/18
Filed: 1936-09-24
Abstract: 479,693. Automatic - feed weighers. BERKEL AUTO SCALE CO., Ltd. (Maatschappij van Berkel's Patent N. V.) Sept. 24, 1936, No. 25926. [Class 143] In a weighing-apparatus wherein the supply of substance being weighed is cut off by pneumatic means when a predetermined load is reached, the supply valve is caused to close when an obturating member on a moving part of the weighing mechanism closes an adjustable air-inflow aperture communicating with a source of vacuum and thereby produces a vacuum within a pressure-operable (diaphragm) device connected to the valve. As shown, for weighing gas into a vessel V, carried by a system of levers connected to a steelyard 5 carrying a pointer 11, an obturating member 15 is pivoted on a projection 14 on the pointer. When the requisite weight has entered the vessel V, the pointer followed by the obturator under the influence of a weight 17 reaches the zero position on a graduated scale 13 and the obturator closes the end of a vacuum tube 20 communicating with a diaphragm chamber 22. The resulting vacuum raises a catch 24 and a spring S closes valves 28, 30 to cut off the supply to the vessel V and the suction from the source of vacuum. Leakage of air past the obturator 15 allows the pointer to move back for the next weighing operation. The vacuum tube 20 may be adjusted by a rack and pinion to vary the point of cut-off. In a modification, the obturating member is in the form of a flat spring attached to the pointer and moving longitudinally across an adjustable suction aperture. The end of the spring is drawn in to close the aperture when the predetermined weight is reached.
Patent GB-777198-A (GB)
Title: Improvements in or relating to oil bath air filters
Inventor: MAUSER HANS
IPC: F02M35/026
Filed: 1955-09-10
Abstract: 777,198. Air filters. FILTERWERK MANN & HUMMEL GES. Sept. 10, 1955, No. 25943/55. Class 8(2) In an air filter of the oil-bath type comprising an axial dirt-laden air inlet tube 3 surrounded by a filter insert 2 and terminating above a baffle plate 27 spaced above the sump 5 which is detachably connected to the filter casing 1 having a clean air outlet 4<SP>1</SP> in a hood portion 4, the baffle plate is formed by a central imperforate part 27 of a bowl the side 9 of which encloses the lower part of the filter insert and the marginal part of the base of which has a ring of apertures 28 providing the only communication between the sump and the space above the bowl. As shown the filter insert comprises separate portions 2, 2<SP>1</SP> held between screens 7, 8, 11 and 12; the lower portion 2<SP>1</SP> being removable with the bowl after releasing clips 6 and removing the sump 5. Apertures 20 in a flange 13 housing an outer sealing ring 14 allow access of a tool for loosening the inserts 2<SP>1</SP> prior to removal thereof. An inner sealing ring 18 is pressed outwardly by a tapered portion 19 adjacent dimples 24 at the lower end of the tube 3.
Patent GB-819460-A (GB)
Title: Improvements in or relating to coated fabrics
IPC: D06M15/693
Filed: 1957-08-16
Abstract: 819,460. Coated fabrics. DU PONT DE NEMOURS & CO., E.I. Aug. 16, 1957 [Oct. 31, 1956], No. 25973/57. Drawings to Specification. Class 140. A base fabric is coated on one side with a coating comprising as the essential film-forming material natural rubber or a synthetic rubber and coated on the opposite side with a composition comprising chlorosulphonated polyethylene as the essential film-forming material. Specified synthetic rubbers include neoprene, butyl rubber, and copolymers of butadiene with acrylonitrile and styrene. The base fabric may be of nylon, cotton, viscose rayon, polyacrylonitrile or polyethylene terephthalate. The coating materials may be applied as solutions or dispersions by dipping, spreading or calendering. The coated fabric is then dried and heated to cure the coatings. The finished product is particularly suitable for making tarpaulins, the chlorosulphonated polyethylene coating having considerable abrasion and wear resistance and the natural or synthetic rubber coating having good resistance to weather conditions. If desired a white or coloured pigment may be incorporated in the chlorosulphonated polyethylene coating in order to identify it as the abrasion resistant side. In an example a nylon fabric is first impregnated with a primer comprising neoprene, para-coumarone-indene resin, hexamethylene di-isocyanate, pigments, stabilizers and curing accelerators. It is then coated with a neoprene coating composition comprising neoprene latex, the mixed sodium salts of lauryl and myristyl sulphates, partially desulphonated sulphonated lignin, di-#-naphthyl-p-phenylone diamine, sulphur, thiocarbanilide, aluminium silicate, zinc oxide, carbon black, petroleum oil, oleic acid and ammonia. The dried coated fabric is dusted with talc. The other side is then coated with a chlorosulphonated polyethylene composition containing hydrogenated rosin, triethyl lead maleate, blanc fixe, carbon black, phthalic acid, tetramethyl thiuram disulphide, 2-mercapto imidazoline and trioctyl phthalate. After drying and coating with tale the coated fabric is cured. Specification 574,903 is referred to.
Patent GB-1353480-A (GB)
Title: Method for producing citric acid
IPC: C12P7/48
Filed: 1971-04-19
Abstract: 1353480 Citric acid TAKEDA YAKUHIN KOGYO KK 19 April 1971 [2 April 1970] 25989/71 Heading C2C Citric acid is prepared by a fermentation process using a strain of a yeast, mould, or bacterium capable of accumulating citric acid and whose growth is inhibited by a citric acid-antimetabolite or a precursor thereof. The citric acid-antimetabolite is a halogenocitric acid and the precursor is a halogenacetic halogenopyruvic, halogeno-oxalacetic or halogenosuccinic acid. Many suitable yeasts of the genus Brettanomyces, Candida, Pichia, Debaryomyces, Hansulena, Saccharomyces or Kloecera, bacteria of the genus Brevibacterium, Escherichia, Corynebacterium, Arthrobacter, Alkaligenes, Achromobacter and Micrococcus, and moulds of the genus Aspergillus, Penicillium, and Mucor are listed. Suitable micro-organisms may be prepared by induced mutation with high energy radiation or by chemical agents. Carbon sources in the medium may be hydrocarbons, glucose, glycerine and organic acids. Examples describe the use of a mutant strain of Candida lipolytica, Debaryomyces sp., Pichia haplophila, Brettanomyces clausserii, Brevibacterium flavum, Achromobacter nucleoacidoves, Corynebacterium fascians, Penicillium chermisinum, Arthrobacter paraffineus, prepared by irradiation with ultraviolet rays, of Candida lipolytica treated with N - methyl - N<SP>1</SP> - nitro - N - nitrosoguanidine.
Patent GB-1180872-A (GB)
Title: A Selective Printing Device.
Inventor: LANGENBERGER HELMUT
IPC: B41J1/26
Filed: 1968-05-30
Abstract: 1,180,872. Selective printing. WALTHERBUROMASCHINEN G.m.b.H. 30 May, 1968 [1 June, 1967], No. 26041/68. Heading B6F. A selective printer comprises a continuously rotating type drum 1 supporting a plurality of type members 2 slidable axially of the drum 1, impression being effected by a rotating toothed wheel 14 having resilient teeth 16 which can selectively engage a hammer 8 corresponding to the character to be typed when the hammer is moved from an inoperative position as shown to an operative position radially inwardly thereof. The hammers 8 are movable into the operative position by timed actuation of an electromagnet 18 the armature 23 of which engages a projection 17 of the hammer 8. A plurality of electromagnets may be provided, each armature thereof engaging differently located projections such as 17, 17<SP>11</SP> to prevent an electromagnet from engaging two successive hammers. The hammers are returned to the inoperative position by an inclined member 27 aided by centrifugal force and leaf springs 5 return the type members 2, the hammers thereby being pushed against a stop ring. The type drum 1 forms part of a type carriage movable in the letter-space direction. The drum shaft 3 and toothed wheel shaft 15 are connected together for synchronous rotation by a gear-wheel drive arrangement (Figs. 5, 6, not shown).
Patent GB-537372-A (GB)
Title: Improvements in or relating to hydraulic control valves
IPC: F15B13/04
Filed: 1939-09-18
Abstract: 537,372. Hydraulic control valves. BRITISH THERMOSTAT CO., Ltd., and HURST, W. F. F. MARTIN-. Sept. 18,1939, No. 26068. [Class 135] Hydraulic control apparatus includes a main valve 3 which is electrically actuated to control the flow of pressure fluid to pistons 46, 57, actuating valve members 44, 53, respectively controlling the flow of pressure fluid to one end of a hydraulic ram cylinder 66 or other hydraulic device. The valve members 44, 53 are spring urged to the right, Fig. 5, and control valve closure members 43, 52, 56. The valve member 3 comprises a rod carrying ball valves 2, 24, and is held in the position shown by spring means so that the valve 24 is open and valve 2 closed. Both pistons 46, 57, are thus subjected to exhaust pressure through the pipes 60, 30, 34 so that the left-hand end of the cylinder 65 is opened to fluid pressure via chamber 49, and pipe 67, and the right-hand end thereof is subjected to exhaust pressure via chamber 55 and pipe 68. Upon energization of a solenoid acting on an armature associated with the valve rod the latter is raised to open valve 2 and close' valve 24. Pressure fluid is then led to the pistons 46, 57, by way of casings 38, 37, and pipe 60 and the valve members 44, 53 are moved to the left to open up the passages 49, 67 to exhaust and 55, 68 to pressure fluid and so reverse the movement of the hydraulic piston 65. The apparatus may be used on aircraft for the automatic operation of devices controlling the admission and circulation of heated air, the temperature of which actuates a thermal device which energizes or de-energizes the electromagnetic device of the main valve 3.
Patent GB-186833-A (GB)
Title: Improvements in or relating to barrel closures
IPC: B65D39/08
Filed: 1921-10-03
Abstract: 186,833. Rado, A., Mayer, M., and Egerhazy, L. von. Oct. 3, 1921. Bungs and bushes for bung-holes. - A metal bush b which may be, as shown, screw-threaded to enable it to be secured in the bung-hole, has an internal groove adapted to receive locking-bolts g which are caused to project from opposite-sides of a metal bung d on the operation of a detachable key f. A compressible ring s is situated in a groove at the lower end of the bung. The key-hole is covered by a pivoted covering-plate. The bolts g may have extensions which project into and expand the ring s.
Patent GB-1397018-A (GB)
Title: Zircon refractory compositions
IPC: C04B35/16
Filed: 1973-05-31
Abstract: 1397018 Zircon refractories CHAS TAYLORS SONS CO 31 May 1973 [31 May 1972] 26140/73 Heading C1J A refractory composition comprises by weight 70-96À8% zircon (- 70 U.S. Standard mesh), from 3-29À8% iron chromite ore (- 325 U.S. mesh) and from 0À2-5% rutile TiO 2  (- 325 U.S. mesh). The composition may be formed into a shaped body and fired at 1450 to 1650 C.
Patent GB-1223057-A (GB)
Title: Improvements in or relating to electrical control circuits for burners
IPC: F23N5/08
Filed: 1968-05-31
Abstract: 1,223,057. Controlling burners. ELECTRONICS CORP. OF AMERICA. 31 May, 1968 [22 June, 1967], No. 26164/68. Heading F4T. [Also in Division G1] In a burner control system which includes a pilot fuel control 35, a main fuel control 36, an ignition control 34, a timer motor 30 to provide an initial purge period, an ignition period and a combustion interval, and a flame detector 26 sensitive to ultraviolet radiation, the circuit includes means responsive to the flame detector and normally has monostable characteristics so that there is an indication of flame only when the flame detector senses a flame condition, the system including an arrangement for converting the flame detector responsive circuit to a bistable mode in which flame continues to be indicated after the detector provides a transient flame condition signal during the initial period but returning the circuit to monostable condition prior to the ignition period to check the flame sensor and its circuitry for false indications of flame, a safety circuit shutting down the system in safe condition when a flame signal is provided for a predetermined interval of time during the said initial period. Detector 26 is of the Geiger-Muller type and is coupled by a resistor 60 to an inductor 62 having output lines 64, 66 coupled through diodes 68 to provide an input signal to a controlled rectifier 24. A mode conversion circuit connected across the controlled rectifier includes a resistor 108, capacitor 110 and timer contacts 30-13, the flame sensor circuitry being converted from monostable to bi-stable mode when at seven seconds the contacts 30-13 close. A purge cycle continues for twenty six seconds and then contacts 30-13 open to restore the circuitry to its monostable mode. If a flame signal is generated during this purge interval the flame relay remains energized whether the signal is transient or continuous. Current flows in a lock-out heater 32 of magnitude sufficient to open contacts 32-1 after a short time to de-energize control relay coil 20 and to close contacts 32-2 and signal an alarm. Contacts 20-3 are opened so that no ignition sequence may be initiated. The timer motor circuit is completed however and the timer motor runs until contacts 30-1 open at sixty seconds and the system is reset in a safe condition but cannot be restarted until switch 32 is manually reset. If no false flame signal is generated during the bi-stable mode interval and ignition takes place the combustion cycle continues until the call for heat is terminated by the opening of switch 16. Flame failure causes lockout heater 32 to be energized so that the system is locked out.
Patent GB-673704-A (GB)
Title: A game which is a combination of a picture jig-saw puzzle and a cross-word puzzle
IPC: A63F9/10
Filed: 1949-10-12
Abstract: 673,704. Puzzles. BULL, C. A. Oct. 11, 1950 [Oct. 12, 1949], No. 26191/49. Class 132 (iii). An incomplete cross-word puzzle comprising black squares and white squares some of which contain letters is printed or affixed on the reverse side of a jig-saw puzzle and sufficient cut out letters and black squares are supplied to complete the crossword puzzle. There may be two solutions to the crossword.
Patent GB-776939-A (GB)
Title: Room partitions
Inventor: SMITH HAROLD DESMOND
IPC: E04B2/78
Filed: 1954-09-10
Abstract: 776,939. Room partitions. HOPE & SONS, Ltd., H. Dec. 7, 1955 [Sept. 10, 1954], No. 26254/54. Classes 20(4) and 87(1) A room partition comprises a rectangular metal frame having side member a, b and a bottom member c of channel section, a pair of sheet metal panels d, e secured to opposite sides of the frame, and a metal window frame g attached to the upper edge of the first frame. The lower channel member f of the window frame engages the inwardly-stepped upper edges of the panels d, e and is screwed to the upper channel member h or to the wood strip contained therein. The partition is mounted with the lower member c placed over an inverted channel member i secured to the floor j, the other outwardlydirected channel members being engaged in grooves in vertical posts m, n and in a capping member o respectively.
Patent GB-701978-A (GB)
Title: Improvements relating to axle suspended electric traction motor drives
Inventor: BINNEY ERIC ALTON
IPC: B61C9/48
Filed: 1950-10-27
Abstract: 701,978. Motor mountings. ENGLISH ELECTRIC CO., Ltd. Oct. 19, 1951 [Oct. 27, 1950], No. 26250/50. Class 79(3) [Also in Groups XXIV, XXXIV and XXXV] In an axle suspended electric traction motor drive in which the motor is supported at one side on transversely spaced bearings journaled on the axle and is resiliently supported at the other side on the vehicle undercarriage, torque being transmitted through toothed wheels on the motor and the axle, the bearings are supported on the motor by rubber rings, and both flanks of each tooth of one of the toothed wheels are tapered from about the middle of the wheel to the end nearest the motor so that there is no concentration of the load on the end of the teeth on the tilting of one wheel relative to the other permitted by the rubber rings. In the preferred embodiment the electric motor 10 is supported by bearing bushes 12 on the axle 11 which it drives through a pinion 25 and gear wheel 26, at least one flank of each tooth of the pinion or the gear wheel being relieved along half its length to about 20 minutes (see Group XXIV). A radial clearance 15 is provided between the bushes 12 and a bearing housing 13, which are split longitudinally. Interposed between each bush 12 and the housing are rubber rings 16 formed with inner and outer metal sleeves 17, 18, the rings and sleeves being split longitudinally and the inner ring being secured to the bush by bolts 19. Each ring and its sleeves are located in grooves in its bush and the housing, the groove in the housing being eccentric to the bore of the housing so that under static load the housing takes up a position substantially concentric with the bush. The arrangement is such that tooth reaction tilts the driving end of the motor and causes misalignment which is compensated for in concentration of the load on the teeth by the relief of the shanks. End thrust on the bushes is resiliently restrained by rubber washers 20 bonded to metal washers 21 located between flanges 12a on the bushes and the end faces of the housing, the washers being split longitudinally and one of the metal washers being secured to its flange 12a by bolts 22. Flexible connectors 24 are provided between the bearing bushes and the housing. The invention may be applied to drives having a pinion and gear wheel and each end of the motor and a circumferentially resilient gear wheel may be used. Specification 561,714, [Group XXIV], is referred to in the Provisional Specification. Reference has been directed by the Comptroller to Specification 561,714.
Patent GB-322787-A (GB)
Title: Improvements in or relating to pneumatic photographic printing frames
IPC: G03B27/20
Filed: 1928-09-13
Abstract: 322,787. Pictorial Machinery, Ltd., and Cook, B. Sept. 13, 1928. Printing-frames with pneumatic devices.-A vacuum-contact printing-frame in which a blanket support 17 is pivotally mounted on a stand 10 and a glass plate 26 adapted to be clamped against the blanket is pivotally mounted on the blanket support, is provided with a stop 16 against which the blanket support, when raised to a vertical position, bears and is held by gravity. The glass plate is held by a U-shaped support 25 hinged to one end of the blanket support, and clamping means 29 comprising a U-shaped clamping bar 31 supported by eccentrics on a shaft 32 at the other end of the blanket support directly engages the glass plate, so that by turning the shaft 32 by means of the handle 35 the bar 31 is caused to press upon or release it. The stand comprises two similar side plates 11 and 12 and four cross members 13 - - 16, the member 15 constituting an axle pivotally carrying the blanket support and the member 16 a stop for the blanket support when raised to the vertical position. A hand suction pump 40 is mounted on the side plate 11. Specifications 236,651 and 258,019 are referred to.
Patent GB-659477-A (GB)
Title: Azo-coupling component for diazotype photo-printing material
IPC: G03C1/58
Filed: 1949-10-13
Abstract: 659,477. Photographic diazotype material. GENERAL ANILINE & FILM CORPORATION. Oct. 13, 1949, No. 26331. Convention date, Oct. 22, 1948. [Class 98 (ii)] Thiobarbituric acid is used as an azo-coupling component for incorporation in a diazotype sensitizing solution or in an alkaline developing solution therefor. The sensitizing solution may contain, in addition to an acid stabilizing agent, a metal salt, a stabilizing agent such as thiourea or naphthalenetrisulphonic acid, and a wetting agent such as saponin, a hygroscopic agent such as ethylene glycol, glycerol, or dextrine and a solvent such as isopropanol. The support may be paper, cotton, linen, rayon, or cellulosic, polyvinyl, or superpolyamide film. In example (1), paper is sensitized with an aqueous solution of thiobarbituric acid, the zinc chloride double salt of p-diethylaminobenzene diazonium chloride, citric acid, thiourea and zinc chloride. In examples (2) to (6), the composition is similar, using as the diazo compound the zinc chloride double salt of N: N- dimethyl - m - toluidine - p - diazonium chloride, the zinc chloride double salt of N-methyl: N-#- hydroxyethylaniline - p - diazonium chloride, diphenylamine-p-diazonium acid sulphate, the zinc chloride double salt of N: N-dimethyl-mphenetidine-p-diazonium chloride, and the zinc chloride double salt of 3-dimethylaminobenzoic acid-6-diazonium chloride. In example (7), paper sensitized with an aqueous solution of the zinc chloride double salt of 2: 5-diethoxy-N- benzoylaniline-p-diazonium chloride, citric acid, thiourea, and zinc chloride is developed, after exposure, with a mildly alkaline solution of thiobarbituric acid, and in example (8) the procedure is similar using as the diazo compound 2: 5: 4<SP>1</SP>-triethoxydiphenyl-4-diazonium acid sulphate. Specifications 496,090 and 633,877 are referred to.