baber/WOPTO huggingface dataset:
Patent GB-1102139-A (GB)
Title: Decontamination system for a contaminated chamber
Inventor: VALENTIN ANDRE
IPC: G21F7/005
Filed: 1966-07-04
Abstract: 1,102,139. Shielded chambers. COMMISSARIAT A L'ENERGIE ATOMIQUE. 4 July, 1966 [8 July, 1965], No. 29963/66. Heading B4Q. Operations on radio-active material are carried out in a removable α-protection chamber situated within a working cell 4 or 6 formed in a #, γ protection chamber 2. The α-protection chamber comprises a cover 20 and base plate 18 with an interposed sealing gasket 26, and rests on a stand 22. In order to decontaminate the α-protection chamber it is removed to a decontamination cell (36) (Fig. 2, not shown) also formed in the chamber 2. To this end a roof slab 8 of the cell 4 is removed by a crane 16 operating in a tunnel 12 and the α-protection cell is lifted by a crane 30 into the tunnel and traversed along the latter until it is above the cell (36), the roof slab (38) of the cell (36) having been previously removed by a crane (40), so that the α-protection cell may be lowered on to a turntable (46) in the cell. The cell (36) includes a crane (54) for removing the cover 20, a telemanipulator (58) and air extraction nozzles (62).
Patent GB-1163047-A (GB)
Title: A Colour Picture Tube.
IPC: C09K11/02
Filed: 1967-06-29
Abstract: 1,163,047. Colour television tubes. MATSUSHITA ELECTRONICS CORP. 29 June, 1967 [5 July, 1966], No. 29991/67. Heading H1D. [Also in Division C4] In a colour television picture tube in which the red phosphor comprises Y 2 O 3 : Eu or Gd 2 O 3 : Eu, the blue phosphor ZnS: Ag and the green phosphor (ZnCd) S: Ag, the blue and green phosphor materials are so prepared to increase their intensities that white at 9,300 K. is obtained when the tube is operated with current ratios of I R /I G = 1À20À3 and I R /I B = 1À50À5. The tube is thereby rendered interchangeable in the television receiver with a conventional tube comprising a (ZnCd)S: Ag red phosphor and ZnS: Ag and (ZnCd)S: Ag blue and green phosphors for which to obtain white at 9,300 K., the operating currents ratios are I R /I G = 1À400À55 and I R /I B = 1À500À70. The intensities of the blue and green sulphide phosphors may be increased by reducing the amount of killer substances such as Co, Fe or Ni usually present in the amount of from 10<SP>-4</SP>- 10-<SP>3</SP>% and by covering the phosphor particles with an acidic oxide such as GeO 2  + SiO 2  or 12 WO 3 +SiO 2  to reduce the absorption of chromium present because of the ammonium bichromate used in the preparation of the screen. The acidic oxide covering is formed by stirring sintered but untreated phosphor particles in a dispersing liquid of water glass containing the acidic oxide and then subjecting the particles to drying and heat-treatment. The percentage of the acidic oxide covering may be 0À05-0À5%. The green phosphor (ZnCd)S: Ag may have a ratio of Zn to Cd of 63: 37 instead of the usual 66: 34.
Patent GB-300009-A (GB)
Title: Improvements relating to couplings for tractor trailers
IPC: B60D1/50
Filed: 1927-11-09
Abstract: 300,009. Laurie, P. D. Nov. 9, 1927. Couplings for tractors. -A draw-bar 1 guided by a bracket 2 fixed to the trailer is formed with a ball 3 adapted to engage in a socket 4 fixed to the tractor. Pull is resisted by a spring 5 which bears against a cross-head 7 carried by the bar. The socket 4 is free to move between vertical guides and bears upon springs 15.
Patent GB-600299-A (GB)
Title: Radio receiver
IPC: H03D5/00
Filed: 1945-11-09
Abstract: 600,299. Radio receiving systems. STANDARD TELEPHONES & CABLES, Ltd. Nov. 9, 1945, No. 30043. Convention date, May 24, 1943. [Class 40 (v)] A receiver for amplitude or frequency modulated carrier waves comprises means to translate the modulation characteristics of the wave into an equivalent train of time modulated pulses and means including a blocking oscillator for applying the pulses to a pulse time demodulator. The receiver has a radio frequency circuit 10, Fig. 1, followed by a gate clipper 15, two differentiating circuits 16, 17 and a second gate clipper 18, the pulses from which pass through a blocking oscillator 19, to pulse demodulator 20. The signal transformations when an amplitude modulated wave is received are shown in Fig. 2. The wave 21, curve 2a, having a modulation envelope 22, is clipped by unit 15 between the levels 25, 26 to produce the trapezoidal wave, curve 2b. The first differentiation produces the duration and amplitude modulated pulses, curve 2c. The second differentiation produces the short positive and negative pulses, curve 2d, corresponding respectively to the leading and trailing edges of the input pulses. Portions of the negative pulses are selected between levels 55, 56 by the second gate clipper and passed to the blocking oscillator 19, which in this case produces gating periods 58, curve 2e, which block none of the pulses. The output pulses are time modulated in opposite directions for each pair and are demodulated by circuit 20 which may be as described in Specification 600,291. When a frequency modulated wave is received the blocking oscillator is adjusted to pass only pulses having a constant repetition rate and a displacement characteristic substantially that of the modulation characteristics of the input wave, Fig. 3 (not shown). Specification 582,100 also is referred to. The Specification as open to inspection under Sect. 91 states that various forms of time and duration modulated radio frequency pulses can be handled by the receiver. With paired time modulated input pulses the use of blocking oscillator 19 is unnecessary and it is cut out. With input pulses which are duration modulated a circuit is substituted for the blocking oscillator 19, which reverses the negative pulses in its input and adds them to the positive input pulses, to produce time modulated pairs. This subject-matter does not appear in the Specification as accepted.
Patent GB-443092-A (GB)
Title: Improvements in and relating to fractionating columns
IPC: B01D3/14
Filed: 1935-10-31
Abstract: 443,092. Treating gases with liquids. BORSIG MASCHINENBAU AKT.-GES., A., 19, Berlinerstrasse, Tegel, Berlin. Oct. 31, 1935, No. 30128. Convention date, Feb. 18. [Class 55 (ii)] A fractionating column comprises a hollow vertical shaft having domes 18 containing bubbling trays 20 mounted on one or more sides thereof and the spaces divided off by the bubbling trays in each dome are brought into open communication with spaces in the shaft between further bubbling trays mounted within the shaft. The domes on one side of the shaft may be staggered with respect to the domes on the other side in order that vapours may pass up the tower in a sinuous manner as shown by the arrows. The shaft is composed of channel irons, the abutting edges of which are welded together while holes are cut in the webs over which the domes are secured. Further channel irons may be welded on the shaft to provide spaces for stripping columns and also to provide a channel to lead vapours down from the head of the column to a condenser at the foot. The domes may be provided with overflow weirs 22 and liquid seals 24. In order to vary the number of bubbling trays in the tower some of the domes 18 may be replaced by domes 28 containing overflow weirs and liquid seals but no bubbling trays.
Patent GB-537583-A (GB)
Title: Improvements in composite materials made from vinyl resins
Filed: 1939-11-21
Abstract: 537,583. Resinous polymerization products. CARBIDE & CARBON CHEMICALS CORPORATION. Nov. 21, 1939, No. 30463. Convention date, Dec. 6, 1938. Addition to 518,555. [Class 2 (iii)] [Also in Group IX] Composite materials, e.g. threads, strings, fabrics, stuffing materials &c. are formed from textile, metal, glass or other fibres reinforced with a binding agent comprising filaments or fibres of a co-polymer of a vinyl halide with a vinyl ester of an aliphatic acid having an average macromolecular weight of between 7,500 and 15,000 and being at least partly fuzed to the other fibres. The vinyl resin may contain from about 50 per cent. to 95 per cent. by weight of the halide and the filaments or fibres may be stretched about 400 per cent. prior to incorporation with the other fibres. Yarns may be made by twisting or doubling the vinyl resin fibre or filament with other continuous artificial or natural filaments or with continuous threads of cotton, linen, hemp and wool or from a mixture of staple fibres of the vinyl resin and other natural or artificial staple fibres. Specification 406,338 and U.S.A. Specification 1,990,685 are referred to.
Patent GB-776729-A (GB)
Title: Reciprocable feed mechanism
IPC: H01H11/04
Filed: 1955-10-25
Abstract: 776,729. Step-by-step conveyers. WESTERN ELECTRIC CO., Inc. Oct. 25, 1955 [Oct. 28, 1954], No. 30475/55. Class 78 (1). A reciprocable feed mechanism for feeding articles, e.g. switch or relay parts 10 from a magazine 16 step-by-step towards a work station 18 comprises a pair of guide rails 31 for supporting the articles, a reciprocable feed-bar 40 working between the rails and carrying a series of pawls 45 for advancing the articles and means for moving the pawls into an operative position actuated by the movement of the feed bar in one direction and for retracting them when the bar reverses its movement. One rail 31 has a projecting portion 34, Fig. 9, to which the other is secured. The bar 40 has a lower feeding section 41 and an upper feeding section 42. The section 41 is disposed between the rails 31 and is formed with recesses in which the pawls 45 are mounted. The tail of each pawl has a slot 67 which receives one end of a pin 68. This pin extends through a slot 69 in the section 41 and is secured to a channel-shaped bar 70. A bar 72 bears against the flanges 71 of the bar 70 and is attached by screws to the main part of that bar to form a tubular member 74 which encloses the bar 41. At the commencement of movement of the bar 41, the member 74 remains stationary until the pins 68 secured thereto are engaged by the ends of the slots 69 in the feedbar. During the period between the commencement of the movements of the bar 41 and the member 74, the pawls take up the driving or inactive positions depending on the direction of movement of the bar 41. When the member 74 is light, it is held stationary during the initial movement of the bar 41 by the engagement of spring-pressed balls 77 with recesses 76 formed in it. An arm 80 secured to the bar 41 extends through a short slot 81 in the bar 72 and a longer slot in a guide rail 31 and is connected to one end of a threaded member 84. The other end of the member 84 is connected by an arm 85 to the upper feeding section 42. This section reciprocates on rollers 90 which are mounted on a stationary bar 92. The bar 42 carries pawls which advance the articles. Retaining pawls are mounted in guide rails 99 which form an extension of the guides 31. The bar 42 is reciprocated by a cam 105. A removable bar 115 may be provided for preventing vertical displacement of the articles.
Patent GB-816096-A (GB)
Title: Rotary shaft bearing device for a vertical motor for high speed spinning
IPC: D01H1/244
Filed: 1957-09-30
Abstract: 816,096. Ball-bearings. SHINKO DENKI KABUSHIKI KAISH‚. Sept. 30, 1957 [June 24, 1957 (2)], No. 30481/57. Class 12 (1). A hollow vertical shaft 1 is supported by two bearings 9, 13 comprising cup-shaped outer races 11, 16 and inner races 10, 14 having bearing surfaces which are convex in cross-section. The outer race 11 is located against a shoulder 8 in a housing 6 and the outer race 16 is pressed upwardly by a spring 20. The inner races 10, 14 are secured to the shaft 1 and are spaced by a sleeve 17, the race 10 being located against a shoulder 2<SP>1</SP> on the shaft and the race 14 being secured by a nut 18. The upper part of the shaft 1 carries a rotor A of an electric motor and the lower end of the shaft 1 is internally-tapered to receive a flexible shaft 3 for high-speed spinning. In a modification, the lower bearing 13, Fig. 2, is located against a shoulder 81 in the housing and the upper bearing is inverted and pressed downwardly by a spring 26.
Patent GB-393181-A (GB)
Title: Engagement and disengagement device for cycle lighting apparatus
IPC: B62J6/06
Filed: 1932-10-31
Abstract: 393,181. Driving dynamos. QUAST, F. and EICHERT, A. F. V., (trading as Berko-Werke Quast & Co.), 207, Greifswalderstrasse, Berlin. Oct. 31, 1932, No. 30523. Convention date, Nov. 5, 1931. [Class 35.] A lighting dynamo for a cycle &c. is mounted on a hinge formed of two sheet-iron flaps between which is mounted. a spring tending to tilt the dynamo so as to press a friction wheel against the rim of the wheel, a detent being provided to hold the flaps together when the dynamo is out of use. The Figure shows a device in which the flaps 4, 5 are rolled round to form eyes completely enclosing the pivot pin 3. The detent 11 carries a disc 12 on which the spring 10 bears and pivots in a slot in the flap 5. At the other end of the detent is a surface 16 bearing on the flap 4 to hold the flaps together and an enlargement 18 serving as a stop when the dynamo is in action. Different forms of detent are described, including one acting as a cam and operated by a lever and cords.
Patent GB-1334749-A (GB)
Title: Apparatus for monitoring a composite signal
IPC: H02H7/06
Filed: 1971-06-30
Abstract: 1334749 Protective arrangements GENERAL ELECTRIC CO 30 June 1971 [28 July 1970] 30525/71 Heading H2K Apparatus for monitoring a composite signal including an information signal (e:g. the arcing potential of a generator brush) and recurring "noise" spikes (e.g. due to solid state switching) comprises an information signal path and a control signal path including means 59 . . . 62 for producing triggering pulse only in response to a noise spike, means 24 for delaying the pulse for a predetermined time and pulse forming means 27 triggered by the delayed pulse to produce an enabling signal for a preset interval. A gating device 28 has inputs 108, 93 connected to the respective paths and in response to the enabling signal passes the information signal only during the preset interval, that is in an interval during which there is no noise spike. As shown, high pass filters 50 . . . 53 and 54 . . . 57 are connected to brushes 18, 19, the outputs from the filters being applied to a clipper circuit 59. . . 62 in the control signal path and to clipper circuits 97, 98 and 99, 100 in the information signal path which include diodes 101, 102 and a transistor 104. The means 24 and 27 in the control signal path are monostable multivibrators, a differentiating network 77, 78 and diode 26 causing the second multivibrator 27 to respond to the positive pulse created by the differentiation of the trailing edge of the output pulse of the first multivibrator 24. The output of the gating device 28 is applied to a transistor 114 connected to a peak integrating circuit 117 . . . 119, a field effect transistor 121 and a transistor 128. The transistor 128 provides a signal to an input 136 of a differential amplifier 34 for comparison with a preset voltage applied to input 143 of the amplifier. The output from the amplifier causes a transistor 153 to energize the coil 155 of a relay having contacts 156, 157 in a circuit effective to operate an alarm or cause the de-energization of the protected device or system. A noise generator 36 and test switch 37, 160 enables parts of the system to be tested. Reference is made to the use of vacuum tubes instead of transistors, a delay line in place of the first multivibrator and a Schmitt trigger instead of the second multivibrator.
Patent GB-647403-A (GB)
Title: Improvements in or relating to vehicle detectors
Inventor: WILLIAMS MERREL OMER
IPC: G08G1/042
Filed: 1947-11-19
Abstract: 647,403. Traffic detectors. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Nov. 19, 1947, No. 30645. Drawings to Specification. [Class 37] [Also in Groups XXXVIII and XXXIX] In an arrangement for detecting the passage of road vehicles by their magnetic effect in order to operate traffic control signals (see Group XXXVIII), a coil located adjacent the paths of the vehicles is provided with a cone magnetized just short of saturation by the earth's magnetic field and is connected to a multi-stage magnetic amplifier so that the passage of a vehicle, which in general causes an increase in flux through the coil, takes the cone over the knee of the saturation curve and produces a reduction in the coil impedance, whereby an impulse is transmitted through the amplifier to operate a relay. The coil may be buried in a vertical position near the road surface, and the normal state of magnetization to just short of saturation is achieved by the use of a long, thin cone of a nickel-iron-copper alloy. A horizontal or inclined mounting may be employed.
Patent GB-430292-A (GB)
Title: Improvements in apparatus for the manufacture of cardboard or like pots or containers
IPC: B31B17/00
Filed: 1934-10-26
Abstract: 430,292. Machine for making cardboard pots. SOC. ANON. COROSA, 15, Rue de Chabrol, Paris, and SOC. DES CONFITURERIES ET CONFISERIES D'ORSAY ET RAYON D'OR REUNIES COROSA, 26, Rue Gustave Schildknecht, Brussels. Oct. 26, 1934, No. 30765. Convention date, Dec. 21, 1933. [Class 18] Relates to apparatus for making cardboard or like pots or containers having a folded - over upper edge 4, a groove 5 for receiving a cover, and a bottom 1 set into the lower edge 6 of the wall of the container. The apparatus comprises a matrix with a tapered or cylindrical recess 22, an annular groove 26 in the closed end of the recess, and a second groove 27 near the free edge of the recess for forming the groove 5 in the container, and a die having a tapered or cylindrical wall upon which is maintained a ring 18 of elastic material which cooperates with the groove 27, and a groove 16 for forming the folded edge 4. The matrix is formed by two members 21, 23, one slidable within the other and spring urged towards the die. The die also comprises a member 13 slidable within an outer member 12 and spring controlled. The die member 13 is rotatable by means of a squared end piece 20.
Patent GB-989423-A (GB)
Title: Improvements in or relating to electrical attenuators
Inventor: BARRET JEAN-PIERRE
IPC: H03G1/00
Filed: 1961-08-25
Abstract: 989,423. Automatic volume controls. INSTITUT FRANCAIS DE PETROLE DES CARBURANTS ET LUBRIFIANTS. Aug. 25, 1961 [Aug. 25, 1960], No. 30818/61. Heading H4R. A controllable attenuation network comprises two groups of diodes G 1 , G 2  each having an even number of diodes similarly poled within groups but oppositely poled with respect to each other, the ends of the groups and the common point S of the groups being at substantially the same A.C. potential, viz. that of the point N, the input to the network being between the point N and the mid-point of the group G 1 , and the output being between the point N and the mid-point of the group G 2 . The control voltages - u/2, + u/2 superimposed on a bias voltage Ep are arranged so as to increase the current through group G 1  and to decrease the current through G 2 . Provided the characteristics of the diodes (exponential as described) are matched it is shown that the attenuation can be made independent of changes of temperature. To obtain this matching, each group can consist of 2n diodes, chosen so that any individual variation in each subgroup of n diodes cancel each other out. Various arrangements of this network connected between the emitter and base of a transistor amplifier are described. In one arrangement, Fig. 6, the whole of the control voltage u is applied to a single point D, the input is transformer coupled to the base and the output Es is taken from the collector. It is shown that the gain of the arrangement is directly proportional to Ep, inversely proportional to Eq and varies exponentially with u. In a further embodiment, Fig. 7 (not shown), two such arrangements are used between the respective emitters and collectors of two transistors in a two-stage amplifier. In a further embodiment, Fig. 8, the control potentials for the two groups of diodes are derived from a potentiometer P to provide potentials of u and (1 - m)u for G 1  and G 2 . The gain in this case is an exponential function of mu, m being adjusted to obtain a suitable factor in the exponent and u being controlled according to a programme. Thus u may be made variable as a function of the time after a seismic explosion which is being detected. In the arrangement shown in Fig. 9, two variable attenuators GA, GB and amplifiers Ao, Bo are arranged in a loop with inputs e e  and output e s , the control voltages for G A  and G B  being equal and opposite. The gain of the system between e e  and e s  is shown to be proportional to an exponential function of u, but the gain around the loop in open circuit conditions is independent of u and thus the system can be kept stable. By altering the connections to the rectifiers of one of the attenuators, the same control voltage source can be used for both.
Patent GB-1017914-A (GB)
Title: Spinneret assembly for melt spinning
IPC: D01D4/06
Filed: 1964-08-04
Abstract: 1,017,914. Melt-spinning spinneret assembly. E. I. DU PONT DE NEMOURS & CO. Aug. 4, 1964 [July 24, 1963], No. 30938/64. Heading B5B. A spinneret assembly for melt-spinning comprises a spinneret plate 10 having holes 28, Fig. 1 (not shown), and a distribution plate 12, Figs. 1 and 2 (not shown), attached to a filter block 14 by bolts 16. Filtered melt is discharged from filtration cavities 22 through holes 25, 26 into two branched channel systems 29, 30 in the upper face of distribution plate 12. The melt then flows through opposed slots 31, 32 located adjacent to the periphery of plate 12 into tapered cavities 34, 35. Each tapered cavity has its maximum depth at and is approximately coextensive in width with its associated slot. The slightly higher pressure drop across an outer hole 28 of the spinneret plate caused by the taper of the cavities 34, 35 compensates for the slightly lower temperature at the periphery of the plate and thereby reduces denier variations between individual filaments.
Patent GB-919199-A (GB)
Title: Wet beneficiating of phosphate ores
IPC: B03D1/001
Filed: 1961-08-29
Abstract: Phosphate ore is concentrated by a method which comprises (1) subjecting unsized liberated phosphate ore to froth flotation in the presence of a cationic reagent to provide a phosphate-rich underflow and a silica-containing overflow (2) subjecting the underflow from (1) to froth flotation in the presence of an anionic flotation reagent to provide a phosphate-rich overflow concentrate and an underflow (3) subjecting the underflow from (2) to gravity separation to provide a phosphate-inch concentrate and a silica tail.  Suitable cationic reagents include the higher aliphatic amines and their salts with water-soluble acids; the esters of amino alcohols with high molecular weight fatty acids and their salts with water-soluble acids; the higher alkyl-O-substituted isoureas and their salts with water-soluble acidc; the higher aliphatic quarternary ammonium bases and their salts with water-soluble acids; the higher alkyl pyridinium water-soluble acids and the higher alkyl quinolinium salts of water-soluble acids.  Suitable anionic reagents include fatty acids or fatty acid soaps, and esters or inorganic acids with high molecular weight alcohols.  The necessity of sizing the ground ore is eliminated.  According to a preferred embodiment of the invention, deslimed unsized phosphate ore is subjected to flotation in the presence of a long-chain aliphatic amine and the underflow is thickened at a dewatering station, mixed with sodium hypochlorite and washed at a washing station.  It is then subjected to flotation in the presence of an anionic reagent such as tall oil.  The resulting phosphate-rich overflow is subjected to a cleaner flotation to provide a phosphate overflow product and a coarse silica underflow, and the latter is combined with the overflow resulting from the anionic flotation and the combination is subjected to dewatering and may be mixed with a mineral acid, e.g. sulphuric acid.  Gravity concentration is then effected, preferably by spirals, and this may be preceded by washing and conditioning with a cationic reagent. Quantitative examples are given.