baber/WOPTO huggingface dataset:
Patent GB-764036-A (GB)
Title: Improvements in or relating to a device for thawing a contaminant separator forming part of a gas liquefying system cooled by a gas refrigerator
IPC: F25J3/08
Filed: 1955-01-14
Abstract: 764,036. Liquefaction of gases. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Jan. 14, 1955 [Jan. 15, 1954], No. 1232/55. Class. 8(2) [Also in Group XIII] Relates to means for defrosting the contaminant separator 32, 33 of an air condensing apparatus in which the air condenses. on the fins 30 of the freezer of a reversed hot gas engine, the liquid air being withdrawn through a duct 31. According to the invention, air is forced by a motor driven fan 36 through an electric or other heater 39 and then through a duct 40 which can be connected to duct 31 and overloading of the fan motor 37 and of the heater 39 is prevented, if the separator is blocked up, by a spring loaded vent valve 41 in the duct 40.
Patent GB-844581-A (GB)
Title: An anti-dazzle screen with built-in lamps for the illumination of roads with separate tracks
IPC: F21V17/00
Filed: 1959-01-13
Abstract: 844,581. Road lighting. KROES, J. M. A. Jan. 13, 1959, No. 1242/59. Class 75(4). A screen between the separate tracks of a road comprises a supporting structure formed by upright tubular posts 3 and tubular horizontal connecting members 2 connected by opaque coupling sleeves 6 having lamps 7, the sleeves having light transmitting apertures 8 and 9 such that the light radiates in the direction of traffic movement on each track and opaque screen plates 1 are connected between the upright posts 3 and extend to the ground or are spaced therefrom. The posts 3 are mounted on concrete bases 4. The screenplates are made of reinforced elastic material e.g. wire netting filled with rubber. The coupling sleeve may have the form of a hollow ellipsoid.
Patent GB-1140781-A (GB)
Title: Method and apparatus for mixing fluids
IPC: B01F11/02
Filed: 1967-01-10
Abstract: 1,140,781. Mixing by sonic/ultrasonic vibrations. SONIC ENG. CORP. 10 Jan., 1967 [13 J,an., 1966], No. 1300/67. Heading B1C. A fluid mixing device comprises a liquid whistle having an orifice 25p and a self-exciting vibratory element 40 the free end of which has a blunt end face 40f opposed to the orifice and of a size to block it. The orifice is preferably a rectangular slot and the vibratory element a blade (as shown) which may be tapered in width and/or thickness and is axially adjustable; the clearance between the blade and the orifice may vary from 0.004 in. for water to 0.025 in. and preferably 0.008 in. for very viscous liquids. The blunt free end of the blade may be formed as a transverse bar and at the end of its travel preferably just clears the orifice. The apparatus may be used for homogenizing liquids by sheer only without cavitation or turbulence, and with low power consumption, the pressure drop across the device being only about 10 p.s.i.
Patent GB-620283-A (GB)
Title: Improvements in or relating to automatic control systems for aircraft
IPC: G05D1/02
Filed: 1947-01-15
Abstract: 620,283. Fluid-pressure servomotor-control systems. GLENNY, A. P., and SPERRY GYROSCOPE CO., Ltd. Jan. 15, 1947, No. 1373. [Class 135] In an aircraft automatic pilot incorporating vacuum or suction-operated gyroscopic monitoring instruments and air-pressure actuated servomotors, the air pressure arising at the " positive " side of the vacuum or suction pump in the monitoring apparatus is used to supply the pressure air which actuates the servomotor connected to the aircraft control surface, such supply being through a valve controlled by the monitoring instruments.
Patent GB-671221-A (GB)
Title: Cyclone separators
IPC: B04C5/103
Filed: 1949-06-07
Abstract: 671,221. Centrifugal separators. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. June 7, 1949 [June 4, 1948], No. 15161/49. Class 23 In a cyclone separator comprising a helical jacket 1 having an inlet tube 15 tangentially connected thereto, an end wall 2 closing the upper end of the jacket, and a central tube 5 extending through the end wall and arranged coaxially with the axis of the jacket, the jacket forms about half a turn around the circumference, the tube 5 is provided with a conical funnel 11, and two or more annular members 6, 7 are located in the outlet tube 3 so that free spaces are formed below and between them. A space 8 is formed between the outer surface of each member and the inner surface of the outlet tube 3. Heavy particles accumulate adjacent the wall of the jacket 1 and subsequently pass through the space 8, where their velocity is reduced by friction. Purified gas leaves by way of an annular space 14 between conical members 11, 12 which acts as a diffuser to increase the' pressure of the gas.
Patent GB-523858-A (GB)
Title: Improvements relating to electric dry-contact rectifiers
IPC: H01L21/16
Filed: 1939-01-16
Abstract: 523,858. Asymmetrically conducting resistances; electro-deposition of metals. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. Jan. 16, 1939, No. 1519. Convention date. June 15, 1938. [Classes 37 and 41] In a rectifier element of the copper-copper oxide type, after producing a compound layer, for example, oxide, on the base metal, a superficial layer of the compound is reduced to the original metal, preferably by electrolytic treatment and then a layer of another metal such as nickel is deposited on the reduced metal. In the case of copper oxide, the outer laver of black oxide need not be removed by a separate operation but may be reduced. Preferably the reduction is effected in a sulphuric acid bath 12 of about .35 grams per litre concentration, current being passed from a graphite anode 13, to the elements A mounted in a masking device C, comprising a central metal washer 3, rubber rings 4, 6 and clamping washers 7 with bolts 8 to protect the outer edges of the elements. The inner edges are protected by clamped rubber washers 9. The elements may have the nickel &c. layer applied while still in the mask and, for this purpose, after rinsing and drying in an air blast, they are made the cathode in a plating solution, e.g., of the following composition: nickel sulphate, ammonium chloride, boric acid and sodium chloride at a pH value of about 5.8 using a current density of about 18 amps. per square foot, for about two minutes. Specification 194,653, [Class 37], is referred to.
Patent GB-391914-A (GB)
Title: Improvements in or relating to phosphorescent or luminous masses or compounds
IPC: C09K11/08
Filed: 1932-01-19
Abstract: Luminous or phosphorescent powders are formed by heating a mixture of strontium, calcium and magnesium carbonates so as to form the oxides, adding lithium and rubidium carbonates, aluminium silicate, a carbonaceous substance such as starch, sulphur, a small quantity of soluble metallic salts which serve to impart phosphorescence (termed phosphorogens) and a small quantity of metallic salts which serve as a flux (termed luminophores).  The mixture is heated in a non-oxidizing furnace at 500-1300 DEG  C. for 30-90 minutes, cooled, ground and reheated in a current of hydrogen.  As phosphorogens, thorium, bismuth, thallium, erbium, rubidium, nickel and silver nitrates or mixtures may be used, and they may be introduced in the form of alcoholic solutions.  As luminophores, which are stated to distribute the phosphorogen throughout the base, are employed sodium chloride, sulphate, fluoride, carbonate, or hyposulphite, potassium chloride, sulphate or bi-chromate, manganese chloride or sulphate, calcium fluoride, barium sulphate, or rubidium sulphate or mixtures. The luminous powder may be mixed with resins or cellulose derivatives and solvents or linseed oil and turpentine containing zinc sulphide, barium sulphate, zinc sulphate and calcium carbonate to form paints. Specification 245,612 [Class 95, Paints &c.], is referred to.
Patent GB-904226-A (GB)
Title: An electrical circuit for connecting a stand-by supply to a load in the event of mains failure
IPC: H02J9/06
Filed: 1959-01-16
Abstract: 904,226. Systems depending on two or more sources. STANDARD TELEPHONES & CABLES Ltd. Jan. 16, 1959 [Jan. 21, 1958], No. 1633/59. Class 38 (4). A switching arrangement for substituting without interruption a battery 3 for the D.C. output of an A.C. rectifier unit 1 supplying a load 2 comprises a transistor 5 which is unblocked by means of a central unit 6 when the rectifier output fails. The unit 6 measures the voltage difference between the rectifier output and the battery and unblocks the transistor, which arrangement also allows the battery to supply peak loads. After it has unblocked the transistor may be bridged by a relay contact (not shown). A circuit may be provided to prevent the transistor unblocking when the battery is in a discharged condition. A second rectifier unit 4 is provided to charge the battery.
Patent GB-1191071-A (GB)
Title: An Electrically Heated Oven or Chamber
Inventor: HEATH CLARENCE WILLANS
IPC: F24C14/02
Filed: 1968-01-12
Abstract: 1,191,071. Thermal switches. CARR FASTENER CO. Ltd. 10 Dec., 1968 [12 Jan., 1968], No. 1813/68. Heading H1N. [Also in Division E2] An oven or chamber having electrical heating elements located therein for effecting a high temperature cleaning operation of the interior, has a door which is automatically lockable by a temperature responsive actuator located in the oven or chamber and comprising a casing 15 containing a wax of high melting point, a piston including an inner end portion disposed within one end of the easing so as to be embedded in the wax and an outer end portion projecting axially outwardly of the one end, and connected to mechanism for locking the door, an electrical heating element within the casing and controlled by a switch which is closable when the door is shut and the oven or chamber is to be subjected to a high temperature cleaning operation, the heating element in the casing, on closure of the switch, serving to melt the wax which expands and effects axial movement of the piston against the action of spring 32 to actuate the door-locking mechanism, the door remaining locked until the switch, comprising contacts 33, 34, of the heating element of the actuator has been opened and the temperature within the oven or chamber and within the casing of the actuator falls to that of the melting point of the wax, the spring on contraction of the wax retracting the piston to release the door-locking mechanism.
Patent GB-588010-A (GB)
Title: Improvements in or relating to shuttle guards for looms
IPC: D03J1/24
Filed: 1945-01-24
Abstract: 588,010. Shuttle guards. TAYLOR, A., and HALL, H. Jan. 24, 1945, No. 1886. [Class 142 (iii)] A shuttle guard comprises a part 13 which is hinged to the sley 12 and to which is pivoted a part 14, a combined guide and catch member 15 mounted on the sley supporting the guard in its operative position while allowing it to be folded upon itself to lie against the sley in which position it is held frictionally by a part 15a of the member 15, the guard being released from this position when the loom is started and being held releasably in its operative position by lugs 10b, 11b. In a modification, Figs. 4 to 8 (not shown), the guard comprises a bar hinged to the sley and to which is pivoted a bar having pivoted thereto a further bar, parts of the guard in the folded position engaging frictionally with a dished bracket which supports the guard in its operative position.
Patent GB-1074182-A (GB)
Title: Improvements in or relating to echo sounding apparatus
IPC: G10K7/00
Filed: 1966-01-14
Abstract: 1,074,182. Echo-sounding. BERGWERKSVERBAND G.m.b.H. Jan. 14, 1966 [Jan. 16, 1965], No. 1933/66. Heading H4D. In an echo-sounding device for determining the dimensions of cavities in underground mines or the surface profile of solid material in a container, ultrasonic pulses of short duration are transmitted by a sound generator operated by compressed air. In the embodiment of Fig. 3, a valve for supplying compressed air to a Galton pipe or Hartmann generator comprises a transversely-bored cylinder 2 rotating in a transversely-bored pipe 1. The echo-time of a reflected pulse detected by a microphone is determined in an electronic unit which is supplied with the amplified output of the microphone and also with an electrical pulse generated in synchronism with the transmitted acoustic pulse by a unit 3. The apparatus may be enclosed in a flame-proof enclosure and the range measurement may be indicated on a remote voltmeter. The filling of a container may be controlled by the apparatus.
Patent GB-269967-A (GB)
Title: Improvements in processes and apparatus for draining and concentrating coal and other slimes
IPC: B03B5/02
Filed: 1926-01-25
Abstract: 269,967. Simon-Carves, Ltd., and Robinsan, A. Jan. 25, 1926. Washing-plant, arrangement of.-The slurry separated by settling in the main tank of a coal-washing plant is passed over a vibrating sieve or sieves and the liquid passing through the sieve or sieves is returned for circulation in the plant after gravity separation with rejection of useless settled mineral matter therefrom. The gravity separation may take place in a tank or trough having a tapered or sloping bottom or a number of conical depressions and a weir or weirs. The slurry may be fed down a stationary inclined sieve on to a vibrating horizontal sieve. The Provisional Specification refers to Specification 260,329, [Class 46 Filtering &c.].
Patent GB-265192-A (GB)
Title: Improvements in die casting machines
IPC: B22D17/26
Filed: 1927-01-24
Abstract: 265,192. Aluminum Die-Casting Corporation, (Assignees of Bungay, G. W.). Jan. 26, 1926, [Convention date]. Casting - machines; clamping moulds. - Die-casting machines are provided with hydraulic means for opening and closing the die. the latter being effected with the greater force. The means for introducing the molten metal and for mounting the dies 25, 26 is the same as that described in Specification 122,420. The piston 21 for operating the die 26 is only slightly larger than its rod 20. The cylinder 12 is pivoted at 16 to a slide 10 adjusted on rods 8 by a rack 13, pinion 14 and handle 15. The die carrier 11 engages an inclined rod 18 on the slide 10 so that when the dies are opened they are lifted from the nozzle 28.
Patent GB-137916-A (GB)
Title: Improvements in and relating to compressing and packing machines
IPC: B65B1/24
Filed: 1919-01-29
Abstract: 137,916. McManus, C. E. Jan. 29, 1919. Packing and filling regular material into receptacles.-A machine for compressing or packing granulated cork into tubular receptacles 10 comprises a series of tubes 10 and a series of plungers 9 of progressively decreasing length alined therewith and adapted to enter the tubes to compress material therein, the tubes being intermittently supplied with charges of material from hoppers 53 and subjected to the action of the plungers and progressively advanced across the series of plungers. The plungers 9 are carried by a frame 11 connected by rods passing through hollow columns 4 to a bar 13, which is reciprocated by cranks 16 on shafts 17 operated intermittently from a shaft 72 through mutilated gears 19. The tubes 10 are supported upon a base member B, Figs. 1 and 5, and are advanced by fingers f on upper and lower chains 25, 24, passing around sprockets 22 rotatably mounted upon the columns 4 and geared to shafts 31, 32 connected by a chain 33 and driven intermittently from the shaft 72 through mutilated gears 45<x>, 45, chain gear 40, bevel gears 39, shaft d, and sprocket chain. The tubes are held against displacement by a rail 46 formed in sections, each hinged at 48 to a bracket 47 and normally retained by a catch 51, the end portion 46<x> of the rail being hinged thereto and locked by a sliding latch member. Material is supplied from hoppers 53, 54, Fig. 4, to two series of measuring tubes 151 adapted to register alternately with the tubes 10 and with outlets 7a, 7c from the hoppers. The tubes 151 comprise telescopic portions 149, 151 mounted upon a slide 150 and secured to an upper plate 152 extending laterally to form a closure for the hopper outlets 7<a>, 7<c>, and slidably mounted upon bars 84 carried by the base 7<x> of the hoppers, which base is adjusted vertically by screwed shafts 79 connected by a chain 81 and operable through bevel gearing 82. Motion is imparted to the slide 150 by eccentrics 60 mounted upon a shaft 58 driven through interrupted gearing 64, 63 from a shaft 65, which is driven continuously from the shaft 72, Fig. 1, through a chain 70, bevel gear 68, shaft 67, and bevel gear 66. The tubes 10 are alined with the plungers 9 during compression by a bar 172, Fig. 4, formed with V-notches, which is operated by cams 78 on the shaft 65. Material within the hoppers 53, 54 is agitated by members 86 carrying fingers 88 working between stationary fingers 89, the members 86 being alternately coupled, by a member rocked by the slide 150, to a member m<1>, Fig. 1, which is reciprocated through a lever 98 and rod 110 operated by a crank or eccentric 111 driven from the gear 68. To avoid stripping of the teeth of the mutilated gears, the shaft 72 is driven alternately at high and low speeds, a cam on the shaft controlling a belt-shifter.
Patent GB-261582-A (GB)
Title: Improvements in sugar cane planters
IPC: A01C9/00
Filed: 1926-01-25
Abstract: 261,582. Kassebeer, W. Jan. 25, 1926. Planting-machines; manure distributers. - A cane planter comprises four planting units each comprising a cane-storage chamber, cane-transporting mechanism, a fertilizer-delivering a.ppliance, and a furrow opener and a furrow closer, the furrow opener, the delivery point for the fertilizer, and the furrow closer being arranged immediately behind one another in the line of travel and behind the wheels, so that the furrows may be made to follow the contour of the land. The machine comprises an angle-iron frame 10 and a body 14 mounted on wheels 17. Uprights 18 support conveyer frames 28 extending from pivoted storage chambers 27 to pivoted and curved shoots 42. The conveyers consist of endless belts of rubber or cloth fastened to endless chains driven by clutches and chains 32<a> from the axle 15. On the belts are parallel inclined blocks between which the canes are placed by hand by attendants standing on platforms. As the canes fall from the conveyers they are turned, so as to fall end first, by depending curved spring fingers 30 of unequal lengths. The furrow openers 43 are arranged parallel to one another and side by side. They are channelshaped and have their lower ends bent forward and terminating in points 44. Plates 46 extend rearwardly from the points 44 and are inclined so as to form V-shaped furrows. The furrow openers are adjustably connected to the frame by pivoted arms 53, the pivot bolts 51 of which shear when the points 44 meet obstructions. The furrow closers are near the furrow openers and shoots. They are adjustably connected by chains 90 to the furrow openers and by chains 62 to horidontal frames 56 projecting from them. The furrow closers 64 each consist of two inclined plates connected together at the rear, where there is an opening partially closed by an adjustable plate. The furrow openers and closers may be lifted by winding up chains 69 by means of handwheels 72. Fertilizer is delivered to the shoots 42 from two partitioned containers 75 by shafts formed with right-hand or left-hand threads and feeding into housings 84 provided with funnels 85. The threaded shafts are driven from the cane conveyers.
Patent GB-1382618-A (GB)
Title: Amplifier circuit arrangements
IPC: H03F1/52
Filed: 1972-01-18
Abstract: 1382618 Transistor amplifying circuits SIEMENS AG 18 Jan 1972 [20 Jan 1971] 2257/72 Heading H3T In a two-channel amplifier having a complementary pair of output transistors T5, T6, each having its emitter connected via a respective measuring resistor R7, R8 to supply current in mutually opposite directions to an output terminal, a common input of the two channels being driven by an input current or voltage, a respective diode D3, D4 is connected in a path between the common input terminal and that end of the measuring resistor R7, R8 remote from the output terminal in the channel containing that amplifier stage which supplies current in the opposite direction to that diode, so that each diode becomes conductive and limits the output current through the measuring resistor to which it is not connected when that current exceeds the maximum allowable. In the embodiment, a first pair of complementary transistors T1, T2 drives the corresponding output transistors T5, T6 via driver transistors T3, T4 respectively. The base bias resistor R1 may be replaced by a constant current source, while the diodes D3, D4 may be arranged in series with low-pass filters (Fig. 1, not shown), so as to allow starting currents to exceed the nominally alowable value: limiting diodes may shunt these filters.
Patent GB-1536607-A (GB)
Title: Spinning top
IPC: A63H1/06
Filed: 1977-10-27
Abstract: 1536607 Spinning tops MOTHERCARE Ltd 27 Oct 1977 [20 Jan 1977] 02389/77 Heading A6S A spinning top has a disc 4 connected to or integral with a spindle 3, on which by means of Archimedean screw arrangement including handle 12 the top can be spun, and a number of multi-coloured discs 5 releasably retained on disc 4 such that by varying the orientation of the discs 5 different coloured patterns can be obtained on spinning of the top. The top is preferably made of plastics material (helical rod 11 of metal) and discs 5 have downwardly depending pins 6 which are frictionally engaged by fingers 7 of apertures in disc 4.
Patent GB-952893-A (GB)
Title: Stabilization of trichloroethylene
IPC: C07C17/42
Filed: 1961-01-20
Abstract: The invention comprises hydrazones of the general formula: <FORM:0952893/C2/1> where R1 is C1-3 alkyl; R2 is C1-3 alkyl and R3 is >CH2 or >CH-CH3 and are used for stabilizing trichlorethylene.ALSO:Trichlorethylene is stabilized with hydrazones of the general formula <FORM:0952893/C3/1> where R1 is C1-3 alkyl, R2 is C1-3 alkyl, and R3 is> CH2 or >CHCH3.
Patent GB-675792-A (GB)
Title: Improvements in or relating to the production of substantially dry stable therapeutic powders
IPC: A61K9/14
Filed: 1950-01-31
Abstract: Magnesium methoxide is prepared by adding magnesium turnings and mercuric chloride to absolute methanol, the mixture being first cooled under reflux by means of ice and then being permitted to warm up to room temperature.
Patent GB-413753-A (GB)
Title: Improved process for making non-toxic diamino compounds of arsenobenzene
IPC: C07F9/74
Filed: 1933-01-26
Abstract: Crude diaminoarsenobenzenes are purified by suspending the base in a water-miscible alcohol by rubbing it up in a mill, filtering off the toxic impurities which do not enter into pseudosolution and isolating the base from the filtrate.  Alternatively, the crude base is dissolved with the aid of an acid in the water-miscible alcohol, the solution neutralized by cautious addition of alkali whereby only the toxic impurities are precipitated, leaving a solution of the purified base.  Methyl and ethyl alcohols are specified as water-miscible alcohols.  The treatment is applicable to the derivatives of diaminoarsenobenzenes, e.g. alkyl, aryl, hydroxy and halogen derivatives.  Examples are given of the purification of (1) 4 : 4<1>-dihydroxy-3:3<1>-diaminoarsenobenzene by the first method and its isolation as the dihydrochloride; (2) 4:4<1>-dihydroxy-3:3<1>-diaminoarsenobenzene by the second method, the purified solution of which may be used for the preparation of the formaldehyde-bisulphite or -sulphoxylate compounds; (3) 4 : 4<1>-diaminoarsenobenzene by the second method and its isolation as the dihydrochloride.