baber/WOPTO huggingface dataset:
Patent GB-756662-A (GB)
Title: Apparatus for detecting carbon monoxide
Inventor: VALENTINE REGINALD
IPC: G01N27/16
Filed: 1952-07-31
Abstract: Apparatus for the detection of carbon monoxide in an atmosphere comprises a pair of thermistors 4, 5 arranged in the atmosphere to be tested, an oxidizer 6 in contact with one thermistor and an inert material 45 in contact with the other <PICT:0756662/III/1> thermistor, and electrical means to indicate the difference in temperature between the thermistors.  The thermistors are arranged in series in a duct 41 through which the atmosphere flows; the duct 41 is formed in a block 40 of a poor heat conductor, e.g. expanded ebonite, surrounded by a barrel 47 of copper or brass acting as a heat reservoir.  The atmosphere enters at 49, passes to chamber 51 through a coil 48 soldered to the barrel 47, and thence through the duct to outlet 54.  The oxidizer may be a catalyst, e.g. Hopcalite, or an oxidizing agent, e.g. silver permanganate.  Air to be tested, e.g. from coal mines, may first pass through a filter to remove solid particles, then through mercuric sulphate, magnesium sulphate, and sulphuric acid impregnated on silica gel, or bromine in active charcoal, to remove unsaturated hydrocarbons, then through soda lime or soda asbestos to remove water vapour and acidic gases, and finally through anhydrous magnesium perchlorate to remove water vapour and ammonia.  For testing or calibrating the apparatus, a vessel containing Hopcalite may be included to remove all the carbon monoxide.  The thermistors are connected in the arms of a wheatstone bridge and the voltage obtained is amplified and used to operate a warning lamp and buzzer, and a meter showing carbon monoxide concentration (see Group XXXVIII).
Patent GB-335271-A (GB)
Title: Improvements in or relating to the manufacture of goods of rubber or similar material
IPC: D06M15/693
Filed: 1929-06-25
Abstract: 335,271. Dunlop Rubber Co., Ltd., Twiss, D. F., Trobridge, G. W., and Gorham, W. G. June 25, 1929. Linings, coatings and coverings.-Cellulosic or fibrous containers are provided with protective coatings by applying thereto rubber or similar vegetable resins in the form of aqueous emulsions or dispersions in admixture with an aqueous dispersion of wax or a mixture of waxes. The usual rubber compounding ingredients with the exception of zinc, lead, antimony, mercury and other harmful compounds may be used. Specifications 219,635, 290,313, [both in Class 70, Indiarubber &c.], and 335,559 are referred to.
Patent GB-804201-A (GB)
Title: Improvements in and relating to adhesive compositions
Inventor: SEAR DEREK WILLIAM
IPC: C09J109/00
Filed: 1954-07-05
Abstract: An adhesive composition comprises a butadiene-methyl isopropenyl ketone copolymer and an incompletely condensed phenol-aldehyde or phenol-ketone resin.  The composition may also contain a solvent for the copolymer and resin, a vinyl polymer, or a cellulose ester such as nitrocellulose, chlorinated rubber, limehardened rosin, zinc resinate, stearic acid, fillers such as carbon black, calcium silicate, silica or zinc oxide, and curing agents such as sulphur, xanthates, or dithiocarbamates.  The condensate resin may be made from phenol, xylenol, cresol or resorcinol, and formaldehyde, acetaldehyde, or acetone.  The condensate is preferably prepared in the presence of an acid condensation catalyst.  A hardener such as hexamethylene tetramine may be included in the composition.  Solvents mentioned are methyl ethyl ketone, ethyl acetate, and mixtures.  The vinyl polymer may be a copolymer of vinyl chloride and vinyl acetate and/or maleic anhydride.  The compositions may be used for bonding surfaces of wood, leather, glass, plastic, and metal, e.g. duralumin and as shoe-soling adhesives.  Specification 804,202 and 804,203 are referred to.
Patent GB-1082735-A (GB)
Title: Fm demodulator system
IPC: H03D3/24
Filed: 1965-05-10
Abstract: 1,082,735. Frequency modulation receivers and detectors. HUGHES AIRCRAFT CO. May 10, 1965 [May 21, 1964], No. 19703/65. Headings H3A and H3R. A demodulator for frequency modulated signals comprises a selectable filter 46 or 48 feeding a phase lock loop comprising a phase detector 60, a loop amplifier 66 and a voltage controlled oscillator 68, the loop having an equivalent I.F. loop bandwidth greater than 3.3 times the bandwidth of the filter. The provision of the filter allows the loop gain to be larger than normal thereby improving the signal to noise ratio. The I.F. signal on line 62 is 90 degrees out of phase with the output of oscillator 68; the two signals are brought into phase by a phase shifter 84 and applied to a synchronous detector 80 which supplies A.G.C. to the I.F. amplifier 56. The signal output is taken from the loop amplifier 66 via amplifier 76. The narrow band (2 k/cs.) filter 48 may be used in noisy conditions, and the 10 k/cs. filter 46 under normal conditions without adjusting the demodulator units. The receiver may comprise a feed and parametric amplifier 10, filter 16, first mixer 20 and I.F. amplifier 28, and a second mixer 32 fed from a voltage controlled oscillator 36 which may either operate at a fixed reference frequency or may be controlled by signals from other sources (not shown).
Patent GB-1142043-A (GB)
Title: Control arrangement for the hydraulic power lift of an agricultural tractor
IPC: A01B63/111
Filed: 1966-05-04
Abstract: 1,142,043. Tractor power lift mechanism. KLÍCKNER-HUMBOLDT-DEUTZ A.G. 4 May, 1966 [7 May, 1965], No. 19764/66. Heading A1P. A single control lever 62 has a cam 60 which can be moved to engage rollers associated with three separate linkages 20, 50 and 45 (Fig. 3, not shown) to provide position control, a combination of position and draft control, or draft control alone. Position control feedback from a cam 10 on the rockshaft 9 rotates a two-armed lever 15 about a shaft 17 to move the link 20, which, if the cam 60 engages the roller 22 associated with this link, operates the auxiliary control valve 32 to return it to neutral as the lift links reach the position selected by rotation of the cam 60. For draft control. the lever 62 is moved longitudinally of its pivotal axis to engage cam 60 with the linkage 45. Movements of the upper link 34 are transmitted via links 35 and 38 to a lever 41 (Fig. 3, not shown), which is fixed to the shaft 17 to move independently of the two-armed lever 15 to operate linkage 45 and hence the auxiliary control valve 32. For control under the combination of position and draft, the cam 60 is engaged with the linkages 50, movement of which is derived from a two-armed lever 52 (Fig. 3, not shown) which is pivoted to both the draft control lever 41 and to the arm 18 of the position control lever 15.
Patent GB-727454-A (GB)
Title: Improvements in or relating to mixtures containing common salt intended for household purposes, and processes for producing same
IPC: C01D3/02
Filed: 1951-03-22
Abstract: Common salt capable of preventing dental caries is prepared by uniformly spraying or sprinkling an aqueous solution of a water-soluble inorganic fluorine compound, e.g. potassium, sodium or ammonium fluoride on to a moving layer of crystalline salt to the extent that the salt contains 0.01-1.0 mg., preferably 0.05-0.2 mg., of fluorine per gram, drying the salt if necessary to less than 0.1 per cent. water content, and mixing the dried salt with an inhibitor of caking which does not reduce the solubility of the fluorine compound, e.g. with 0.2-0.5 per cent. of ignited sodium sulphate.  By adding an alkali iodide to the solution of fluorine compound, the salt may be iodized at the same time as it is fluorinated.
Patent GB-137257-A (GB)
Title: Improvements in course setting and navigating instruments for aircraft
IPC: G01C21/20
Filed: 1919-08-12
Abstract: 137,257. Pollen, A. H., and Landstad, H. F. Aug. 12, 1919. Aeronautical compasses; bearings and courses, indicating and determining; navigational calculation apparatus. - Relates to navigating compasses for aircraft of the type described in Specification 127,032, and comprises a compact arrangement of wind, air, and ground speed linkages and of the corresponding indicators. The air-speed vector is set up from the drum D by means of a pinion D<2> and rack D<3> on a slide F moving along the fore- and-aft line of the aircraft, the horizontal projection of the distance B<2>F<2> representing this speed The pivot B<2> is the centre of rotation for the compass, and the sleeve F<2> is attached to a table W<5> carrying guides W<15> within which moves the block W<16> positioning the pin D<6> on the slide D<4>. By means of the handle C' the compass bowl B is then turned to set a pointer on it in the direction of the wind. At the same time bv gearing, part of which is shown by W<10>, W<8>, W<7>, Fig. 3, the table W<5> is caused to turn to the same extent so that the guides W<15> are parallel to the wind's direction. Then, from the handle W<2>, Fig. 4, through bevelgearing W<22>, W<21>, W<19>, W<18> the screw W" is actuated to set the pin P<6> so that P<6>F<2> represents the wind-speed vector. B<2>P<6> then represents the ground speed and the sights parallel to the slide D<4> show the drift. A measure of the ground speed is given by means of a wire or band G<5>, Fig. 4, attached to a pulley G<6> on a pinion G<3> gearing into internal teeth G<2> on a graduated drum concentric with the compass bowl, the other end of the wire being attached to the support for the pin D<6>. Positioning of the pin P<6> sets the drum against a fixed pointer. An arm extending from the side of the casing forms a sight-hole well above and central to the compass to facilitate reading. A movable lubber line may be provided.
Patent GB-1081574-A (GB)
Title: Improvements in or relating to electrical capacitors
Inventor: BEATTIE ROBERT WILSON
IPC: H01G2/12
Filed: 1965-05-11
Abstract: 1,081,574. Capacitors. TELEPHONE MANUFACTURING CO. Ltd. May 4, 1966 [May 11, 1965], No. 19828/65. Heading H1M. Wound capacitor assembly 1 having leadout wires 2 has a length of synthetic sponge material 5 wrapped round its centre region to centralize it within casing 3 and insulate it from the casing. Each end of the casing may be sealed in turn with synthetic resin, and a synthetic resin sleeve 4 applied to the casing by heat-shrinking. The sponge material 5 may be of expanded polychloroprene or polyurethane.
Patent GB-1057014-A (GB)
Title: Preparation of liquid polymers
Inventor: SIMMONS PAUL
IPC: C08C19/08
Filed: 1964-05-13
Abstract: A polymer of butadiene of molecular weight of not less than 100,000 is depolymerized by reacting it in solution in a non-aqueous solvent with a free-radical initiator in the presence of oxygen or a molecular oxygen containing gas at 60 to 180 DEG  C. The polymer may be a homopolymer of butadiene or a copolymer thereof with isoprene, styrene, vinyl toluene or divinyl benzene. The initiator may be oxygen, a molecular oxygen containing gas, a peroxide, hydroperoxide, persulphate, or azobisisobutyronitrile. A reaction promoter e.g. cobalt naphthenate, cobalt ethyl hexanoate or manganese ethyl hexanoate may also be present.
Patent GB-238247-A (GB)
Title: Improvements in or relating to electric drives for looms
IPC: D03D51/00
Filed: 1925-08-07
Abstract: 238,247. Siemens - Schuckertwerke Ges. Aug. 8, 1924, [Convention date]. Driving - arrangements.-In looms provided with individual driving-motors built on tc the loom and driving through gearwheels, the frame or wall of the loom is fashioned as a journal or support for the motor. The motor is preferably disposed so that its centre of gravity coincides with the centre plane of the loom frame. In the form shown in Fig. 1, the frame 1 is fashioned as a trestle and the motor 3 is adapted to receive an adjusting-spindle 5 and a bolt 6. By adjusting a screw 8, the motor is moved along the spindle 5 to bring its pinion 4 into correct meshing-position with the gear-wheel 2. In the form shown in Fig. 4, feet 11 on the motor 3 are adjusted on surfaces 10 on the loom frame 1 by a screw 12. In the form shown in Fig. 5, the loom frame 1 is formed with a cylindrical surface 20 adapted to receive the clindrical casing 21 of the motor 3 which is held in position by a strap 22 and an adjusting screw 23. The casing of the motor is arranged eccentrically to its pinion 4 so that the gearing 4, 2 can be adjusted by turning the motor casing and then locking it in adjusted position by means of the screw 23. This arrangement also permits of exchange of the pinion 4 for one having a different number of teeth.
Patent GB-322230-A (GB)
Title: Improvements in or relating to coin freed apparatus for vending liquids
IPC: G07F13/08
Filed: 1928-09-05
Abstract: 322,230. Berlanny, S. S. Sept. 5, 1928. Spray producers. -A coin-freed apparatus for delivering perfume or other liquid in the form of a spray comprises an air pump 25 connected by a pipe 32 to an atomizer 33 at the upper end of a container 34 for the liquid, the atomizer having a discharge nozzle 35, and the container receiving liquid from a storage supply through a ball-valve at its lower end. The pump piston is con. nected by a rod 27 to a sliding block 20 which is depressed, after prepayment, against the action of a spring 30 by a lever 14 pivoted at 15 and controlled by a spring 18. A full stroke of the piston is ensured by a pin 58 on the block 20 co-operating with a vertical link 50, Fig. 3, controlled by springs 53, 54, the ratchet plate having cam surfaces 56, 57 which are engaged by the pin 58 to rock the link 50. The block 30 slides in a vertical tube and the lever 14 has pivoted thereto at 13 a sleeve 10 of square section sliding on the tube 5. Coin action, mechanical-connection. - A coin 60 is inserted through a gauging slot 3, passes through slots 8, 9 in the tube 5 and through registering slots in the block 20 and sleeve 10. until it contacts with a fixed back plate 40 between guides 42. In this position the coin couples the sleeve 10 and block 20 for movement together. During the down stroke of the lever 14, a plate 11 on the sleeve 10 closes the slot 9 in the tube 5. At the bottom of the stroke the coin escapes through a slot 41 in the plate 40 to a money-box, and the parts 10, 20 are returned by the springs 18, 30 respectively. Fraud, preventing.-A pivoted spring controlled catch 44 prevents a coin from being withdrawn, after it has passed the catch. Too small a coin passes down between the tube 5 and the plate 40 without coupling the block 20 and sleeve 10.
Patent GB-1150253-A (GB)
Title: Improvements in the Production of Ferrous Fumarate.
IPC: C07C51/41
Filed: 1967-05-01
Abstract: 1,150,253. Ferrous fumarate. ASTRA A.B. 1 May, 1967 [6 May, 1966], No. 20033/67. Heading C2C. Anhydrous ferrous fumarate of fine particle size is prepared by reacting ferrous hydroxide and fumaric acid in an aqueous medium at a temperature of at least 70 C., and separating the ferrous fumarate formed from the aqueous medium.
Patent GB-994396-A (GB)
Title: Polysiloxane and use thereof
IPC: C08J9/00
Filed: 1963-05-20
Abstract: A siloxane copolymer having the formula <FORM:0994396/C3/1> wherein R and R1 are each a saturated or unsaturated monovalent hydrocarbon or halohydrocarbon radical, each R11 is a lower alkyl radical, a is at least 2, b is 2 or 3, n is 2, 3 or 4 and x has a value of at least 5, may be made by esterifying a liquid carboxyalkylorganopolysiloxane of the formula <FORM:0994396/C3/2> with a liquid polyalkylene glycol monoether having the formula HO(CnH2nO)xR11, can be made by esterifying the corresponding liquid carboxyalkylsiloxane with the desired liquid polyalkylene glycol monoether, preferably in the presence of an inert solvent and a catalyst, e.g. p-toluene sulphonic acid.  The starting carboxyalkylsiloxanes may be made as described in Specification 20028/63, or by rearrangement and condensation of certain siloxanes and alkoxy-silanes. In a typical example (1) CH3SiCl3, (CH3)2SiCl2 and CNCH2.CH2CH2(CH3)2SiCl were hydrolysed and the resulting carboxyalkylsiloxane was mixed with toluene, p-toluene sulphonic acid and the mono-butyl ether of a mixed polyethylene-propylene-1, 2 - glycol and refluxed for 4 hours to yield, after cooling, filtration of the neutralized product and removal of toluene, a clear colourless liquid of the formula <FORM:0994396/C3/3> Uses.-As surface-active additives in the production of polyurethane foams. Many known polyisocyanates, polyols (polyesters and polyethers), blowing agents and catalysts are specified. Examples 13 to 18 describe the preparation of polyurethane foams using the siloxanes of preceding examples.  Specification 994,397 is referred to.
Patent GB-205580-A (GB)
Title: Improvements in or relating to the manufacture of calcium carbide cakes
IPC: C01B32/942
Filed: 1922-07-21
Abstract: In the formation of blocks or cakes by coating granulated calcium carbide with a mixture of melted sulphur and sugar, a small percentage of a soluble metal chloride is added previous to the addition of the coating material.  Sodium, potassium, calcium, strotium, barium, and magnesium chlorides are mentioned as suitable chlorides, which are thoroughly dried and added preferably when the carbide has been partly heated.  The hot cakes, which during formation are subjected to a pressure of 10 to 20 tons per square inch, are dipped in a mixture of asphalt or bitumen varnish, oil, and naptha or other thinning spirit and finally drained.  Specification 1424/09 is referred to.
Patent GB-289450-A (GB)
Title: Improvements in or relating to cheques
IPC: B42D15/00
Filed: 1927-07-28
Abstract: 289,450. Pollak, F. April 28, 1927, [Convention date]. Cheques.-Interest-bearing cheques have a portion A provided with tables showing the interest which accrues from day to day, the value of the cheque at any date after the date on which it begins to bear interest being indicated by means of an apertured frame B which is adapted to be secured upon the cheque so that the accrued amounts are shown adjacent to the dates printed upon the frame. A special frame is provided for each day of the year. The example shows a cheque with interest tables extending over a, period of ninety days, the frame being provided with adhesive to secure it to the cheque and printed to indicate the interest beginning on the third of January.
Patent GB-1378193-A (GB)
Title: Ice crystal wash
IPC: A23L2/12
Filed: 1972-05-01
Abstract: 1378193 Washing crystals STRUTHERS PATENT CORP 18 April 1973 [1 May 1972] 20159/72 Heading BIG  Apparatus for washing ice crystals free from impurities comprises in combination a conduit having an entrance end, an intermediate liquid permeable portion containing fine passages in the walls thereof and an exit end, means for forcing a slurry of ice crystals into the entrance end of the conduit, means for introducing direct contact refrigerant into the conduit after the intermediate portion associated with means for forcing the refrigerant to flow countercurrent against the slurry and to flow from the conduit with impurities washed from the ice crystals through the liquid permeable intermediate portion. The impurities are preferably collected in a tank disposed about the passageways. As shown in Figure 1 and wherein liquid butane is used as the wash liquid, ice crystals 10 as a slurry are fed from a hopper 11 into conduit 12 by a screw conveyor 13 driven by a motor 14. Liquid butane is introduced into conduit 12 by an annular jacket 19 and flows counter to the compacted ice crystals in the conduit. Located between jacket 19 and screw 13 is a tank 16 positioned around passages 15 in the walls of the conduit. Through these passages the butane including dissolved impurities and liquid squeezed from the slurry passes in the tank. The purified ice crystals leave the conduit and fall into a melt tank 17 after passing through a construction 18. In the tank the crystals are melted by a coil 30 and fresh water 33 recovered from pipe 31. The butane 23 in tank 16 is recirculated by pipes 27 and 28 to jacket 19. If the refrigerant is heavier than water the apparatus features 16 and 17 are used in reverse i.e. the refrigerant is recirculated from the bottom of 16 and fresh water recovered from the top of 17. The specification includes a figure (not shown) of this modification. The ice crystals may be formed by conventional methods in brine or aqueous beverage solutions.
Patent GB-516786-A (GB)
Title: Improvements in or relating to braun tubes
IPC: G01R13/20
Filed: 1938-07-07
Abstract: 516,786. Cathode-ray tubes. SIEMENS APPARATE UND MASCHINEN GES. July 7, 1938, No. 20170. Convention date, July 7, 1937. [Class 39 (i)] In a Braun tube, provided with means for deflecting the beam so that it describes a circular path on the screen, an electrical lens, which is controlled by the voltage variations to be measured, is used for radially deflecting the beam. The beam is rotated by electrostatic or magnetic means 4, and the lens 5 comprises perforated discs, the outer ones of which are connected together. The diameter of the circular path may be determined by a steady potential bias on the lens.
Patent GB-1163520-A (GB)
Title: Infrared thermograph
IPC: H04N3/09
Filed: 1968-04-29
Abstract: 1,163,520. Infra-red thermograph. BARNES ENG. CO. 29 April, 1968 [3 May, 1967], No. 20178/68. Heading H4F. Specification describes an infra-red thermograph, Fig. 1, of the type comprising a mirror 14 oscillating about two orthogonal axes under the respective control of line and frame torque motors, to cause a raster scan of a scene viewed by lens 10 with respect to a thermister detector 12, wherein, in between each line scan, a black vane 16 interrupts the radiation to the detector and a preamplifier receiving the output of the detector is clamped to a reference (black level) potential. As shown, the vane is fixed to move with the mirror 14. The output of the preamplifier 2 may be used to modulate a glow tube 20, the light from which is focused by the parabolic reverse face of mirror 14 on to a photographic surface 26, whereby a photographic record of the scene is produced. The output of the preamplifier may also be fed to a C.R.T. for normal viewing. The torque motor 34, Fig. 3, is fed with a constant positive voltage during each scan and a constant negative voltage during each flyback. The sawtooth output 46 of an oscillator 44 may be differentiated at 48 and the resulting pulses 50 used to trigger a multivibrator 52. By this means the positive and negative shaded areas in the voltage waveform 54 may be made equal. To ensure a linear movement of the motor it may work against a pneumatic dashpot.
Patent GB-457749-A (GB)
Title: Improvements in or relating to apparatus for silencing gaseous currents
IPC: F01N1/04
Filed: 1936-07-21
Abstract: 457,749. Exhaust - silencers and the like. MASCHINENFABRIK AUGSBURG - NURNBERG AKT. - GES., 7, Stadtbachstrasse, Augsburg, Germany. July 21, 1936, No. 20205. Convention date, July 22, 1935. [Class 7 (ii)] Relates to silencers, particularly for internal-combustion engines, of the type comprising a through passage communicating with lateral damping-chambers 2 by means of apertures, and consists in forming the passage by means of spaced tubular sections 1 connected by welded-on, flat, iron cross-members 5 bridging the intermediate spaces and preferably arranged edgewise ; the apertures 4 thus formed may be covered over with wire gauze or perforated metal sheets. The members 5 may be arranged either on the outside or the inside of the tubes 1. A conical member 6 is arranged at the end of the through passage and projects beyond the casing as shown or is accommodated inside. The surfaces may be lined with sound-deadening material.