baber/WOPTO huggingface dataset:
Patent GB-1173441-A (GB)
Title: Improved Contamination Detector
IPC: G01N1/24
Filed: 1967-05-19
Abstract: 1,173,441. Gas analysis; Electro-physical measurement. NATIONAL DISTILLERS & CHEMICAL CORP. May 19, 1967 [June 6, 1966; July 20, 1966; July 25, 1966(3)], No.23344/67. Addition to 1,090,551. Headings G1B and G1N. In an apparatus for inspecting open end plastics containers e.g. bottles or jars, for the presence of organic contaminants therein, of the type disclosed in Specification 1,090,551 in which the containers pass in single file along a conveyer and in which samples of gas from each container are serially taken and fed to a gas analyzer, a flame ionization cell is used for detecting the contaminants and a positive indication is used to actuate a container puncturing member in the form of a tubular tool with an oblique cutting edge. The flame ionization cell is shown in Fig.8 and comprises assembled metal sections enclosing a quartz burner tip 124 to which hydrogen gas is supplied via tubing 110 and a molecular sieve 107, the flow being controlled by a needle valve 118. The pressure of the hydrogen flame is monitored by a thermocouple 136 and a cylindrical collector electrode 135 is provided surrounding the flame on the tip 124. The gas samples to be analyzed are fed via a line 105 to the base of the flame on the tip 24, and any hydrocarbons in the sample will change the ionization of the flame when burned, this change being detected at the collector anode 135 and registered by suitable electrical readout means e.g. a voltmeter. Control circuitry for the apparatus is described and this includes a circuit for the electro-meter which is self-balancing in the sense that automatic compensation is made for aging of the circuit components. The voltmeter needle is arranged to move between two limit contacts, a fall in the registered voltage below the lower limit due to circuit unbalance being corrected by a motor driven potentiometer connected to the contacts, being used to restore the desired voltage. A rise in the registered voltage is compensated in the same way except that when a contaminant is detected further relay contacts are opened for a period of five seconds to prevent the motor drive to the potentiometer being energized until the contaminant has cleared the detection cell. The analyzer is shut-down if the registered voltage does not fall between the desired limits and cannot be compensated or if the thermocouple 136 detects the extinction of the hydrogen flame. Heaters 138 are provided in the body of the flame ionization cell to prevent condensation of water vapour therein.
Patent GB-1179020-A (GB)
Title: Production of Aqueous Vinyl Propionate Polymer Dispersions
IPC: C07D311/30
Filed: 1967-05-19
Abstract: 1,179,020. Aqueous dispersions of polymers of vinyl propionate. BADISCHE ANILIN- & SODA-FABRIK A.G. 19 May, 1967 [20 May, 1966], No. 23399/67. Heading C3P. [Also in Division D1] Aqueous dispersions of polymers of vinyl propionate are prepared by polymerization of vinyl propionate and other monoethylenically unsaturated monomers with water-soluble initiators in aqueous phase in the presence of emulsifiers, monoethylenically unsaturated monomers containing at least 50% by weight of styrene being polymerized in an aqueous medium and the polymerization being continued in aqueous medium until at least the major proportion by weight of these monomers has been polymerized, with an addition of monoethylenically unsaturated monomers containing at least 50% by weight of vinyl propionate, the amount of monomers used being such that the resultant polymer contains 40 to 85% by weight of vinyl propionate and 5 to 25% by weight of styrene as polymerized units. In the examples are used: styrene, tert.-butyl acrylate, acrylic acid, acrylamide, vinyl propionate and N-methylolmethacrylamide butyl ether; potassium persulphate, aqueous solution of a sulphonated reaction product of ethylene oxide and iso-octylphenol, the sodium salt of a mixture of hydroxyoctadecanesulphonic acid and octadecene sulphonic acid, aqueous ammonia solution, and turkey red oil. Aqueous dispersions of the polymers containing ammonium nitrate may be used to impregnate cloth.
Patent GB-831182-A (GB)
Title: Improvements in domestic machines for driving kitchen appliances
IPC: A47J43/08
Filed: 1958-07-22
Abstract: 831,182. Cooling electric motors. BOSCH G.m.b.H., R. July 22, 1958 [July 29, 1957], No. 23422/58. Class 35. In an electric driving unit for kitchen appliances, the driving motor 6 and belt-driven reduction gearing 7 are secured in a casing consisting of two halves 1, 2 spaced by washers 3 under the securing bolts 4 so as to leave a narrow ventilation gap between the two confronting surfaces. The space inside the casing is divided into two parts 16, 17 by a closely fitting shroud-shaped partition 13 which directs the air circulated by fan 18 in at the part 51 of the gap at one end of the casing, through the motor, over the gearing, and out at the part 5 at the other end of the casing. The partition 13 is moulding in two fitting sections and may be of cardboard, synthetic material or like sounddeadening material. Drives may be taken from 9 and 10 which are sealed by rubber rings 11, 12 respectively.
Patent GB-1330285-A (GB)
Title: Method of measuring and registering the depth of underwater  elements of a trawl set and apparatus for using the method
IPC: G01L7/00
Filed: 1971-04-19
Abstract: 1330285 Pressure gauge MORSKI INSTYTUT RYBACKI 19 April 1971 [17 Feb 1970] 23475/71 Heading G1L In an underwater depth measuring and recording instrument for a trawling unit, a predetermined hydro-static water pressure on a piston 8 actuates a switch 9 to start a motor driving a pen recorder system 11, enclosed in a water tight manner in a housing 1, and the pen is actuated by a sensor 5, consisting of a calibrated bellows enclosing a calibrated spring, mounted externally of the housing 1 on a wall 4, through a rod 11 and arm 12. (For Figure see next page)
Patent GB-1186772-A (GB)
Title: Improved Technique of Photographic Dodging and Modified Photographic Film
Inventor: WIEBE ALWYN FREDERICK
IPC: G03C1/685
Filed: 1967-05-19
Abstract: 1,186,772. Photographic dodging process AMERICAN CYANAMID CO. May 19, 1967 [July 1, 1966], No.23495/67. Heading G2C. The contrast of an imaged transparency is increased by the presence of a superposed photochromic layer having a density which is reduced on irradiation with light, and passing light through from the imaged transparency side. A masking image of the same polarity as the transparency image is formed in the photo-chromic layer and this increases the contrast of the original image. The improved contrast image may be used as a projected image or for contact or projection printing or the image may be read for example by an infrared detector. In contact printing the  light may also be passed through from the photochromic layer side. The photo-chromic layer may be attached by adhesive to the imaged transparency or may form an integral layer in an un-exposed light-sensitive film. The photochromic layer may include its own transparent support and be attached to either the support or emulsion side of the transparency. The photochromic layer may be subsequently removed from the transparency by stripping or dissolving. Photo-chromic materials specified include methyl mercury dithizonate and a mixture of chloromethyl phosphonic acid and 1', 3', 3'-trimethyl-6- nitro-spiro (2H-1-benzopyran-2, 2'-indoline).
Patent GB-223032-A (GB)
Title: Improvements relating to the running boards of road vehicles
IPC: B60R3/04
Filed: 1923-09-20
Abstract: 223,032. A.C. Cars, Ltd., and Pitt, H. W. Sept. 20. 1923. Mats.-A scraper for the running board of a road vehicle has ribs or corrugations upon its surface and is mounted at a lower level than the running board. The scraper 1 has downwardly-extending flanges 2. which may be welded at the corner, and upwardly-extending ribs 3 with turned-over edges 5. The scraper is housed in a framing 6 which forms three sides of a rectangle having top flanges 8 by which it is secured to the running board. The scraper and framing may be pressed from a single sheet of metal or the scraper may be welded to the framing.
Patent GB-979645-A (GB)
Title: Improvements in or relating to directional aerials
IPC: H01Q3/34
Filed: 1961-06-29
Abstract: 979,645. Aerials. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. June 29, 1961 [July 4, 1960], No. 23546/61. Heading H4A. A directional aerial comprises a plurality of slotted waveguide sections extending in the same direction and all branched off at different points along a feeder waveguide, there being a linear relation between the phases of the energies fed to the slotted sections and the distances of the branch points from the input end of the feeder, the energies being propogated with the same predetermined phase velocity in the feeder and slotted sections. The phase velocities are governed by the presence of a dielectric coating T on one wall of the feeder waveguide G and on the wall opposite to the radiating slots F of each of the slotted sections. These sections are collinear and each is coupled to the feeder by a directional coupler D and a phase shifter #. Each phase shifter may comprise a dielectric plate which can be displaced in the waveguide or a ferrite insert whose phase shift can be controlled by a magnetic field. The phase of the energy propogated along the feeder guide varies linearly with distance from the input end and the phase shifters introduce an additional phase shift into each slotted section, a phase shift of # being introduced into the section nearest the input end of the feeder, 2# into the next section, 3# into the next, and so on. This is stated to result in a sharply-directional beam and its direction may be varied by simultaneous control of the phase shifters. The slots in each slotted section may be proportioned so that the amplitude per slot varies along the guide to a maximum mid-way along the array of slots, Fig. 3 (not shown), the widths of the slots being chosen to provide maximum elimination of side lobes in the radiation pattern.
Patent GB-1091573-A (GB)
Title: Combustion apparatus for gas turbine engines
Inventor: ORMEROD ALAN
IPC: F23R3/60
Filed: 1964-06-08
Abstract: 1,091,573. Gas turbine combustion chambers. JOSEPH LUCAS (INDUSTRIES) Ltd. Aug. 31, 1965 [June 8, 1964], No. 23560/64. Heading F1L. The downstream end of each angularly spaced flame tube 10 in a gas turbine engine has a lug 15 hinged between a pair of lugs 16 on a support structure 14 by a pin 17, the axis of which extends in a generally circumferential direction, so as to permit expansion of the flame tube. The lugs 15 at adjacent sides of adjacent flame tubes are mounted on a common pin 17, Fig. 2 (not shown), with freedom for movement lengthwise of the pin. A pair of lugs (19) on each flame tube engages a lug (20) on the supporting structure 14 with freedom for radial sliding. The junctions between the downstream ends of adjacent flame tubes and between the flame tubes and the supporting structure comprise overlapping flanges 18. Each flame tube is mounted at its upstream end on a part spherical bearing (13) on a burner nozzle (12) to permit axial sliding and slight pivotal movement of the flame tube.
Patent GB-356421-A (GB)
Title: Improvements in and relating to valve apparatus for rock drills and like fluid pressure operated tools
IPC: B25D9/18
Filed: 1930-08-07
Abstract: 356,421. Valve gear for rock-drills and percussive tools. RAYNER, G. H. T., 14, Broomhall Road, and RAYNER, P. T., 37, Ashland Road, both in Sheffield. Aug. 7, 1930, No. 23701. [Class 122 (ii).] A rock-drill o percussive tool is provided with a distributing valve having three heads of equal diameter ; the central head controls the admission through passage 8; the end heads control the exhaust through passages 11, 12. Passages 9, 10 connect the chest with the cylinder ends ; supplementary ports 17, 18 connect these passages with the valve-chest ends. Exhaust ports 13, 14 controlled by the piston 19, and channels 19, 20 are arranged in the cylinder. Passages 15, 16 connect the valve-chest ends with grooves 19, 20 which are constantly open to atmosphere. In the position shown, the left-hand valve-chest end is open to reduced pressure through port 18, the left-hand cylinder end is open to pressure, and the right-hand ends of the valve-chest end cylinder are open to exhaust. When the piston passes port 13, the left-hand end of the cylinder begins to exhaust, and cylinder pressure passes through channel 19 and passage 15 to the righthand end of the chest and reverses the valve against the reduced pressure in the other end. Specification 356,437 is referred to.
Patent GB-1110417-A (GB)
Title: Improvements in and relating to steam boilers
Inventor: HODDINOTT PETER FROST
IPC: F22D1/24
Filed: 1964-10-20
Abstract: 1,110,417. Economizers; baffles. DAVEY, PAXMAN & CO. Ltd. 3 June, 1965 [20 Oct., 1964], No. 23709/65. Headings F4A, F4B and F4S. An economizer 1 for a shell boiler, having a cold feed water inlet 2 at its bottom and a hot feed water outlet 3 at its top to promote vertical temperature stratification, is provided with means to ensure a graduated heat transfer from the smoke tubes ranging from a maximum from the tubes 4 passing through the hottest water, to a minimum from the tubes 6 passing through the coldest water. This may be effected by baffles 7, 8 of different lengths disposed in the tubes, or by using tubes of different diameters, or by controlling the velocities of flue gases flowing to the individual tubes.
Patent GB-984070-A (GB)
Title: Hydrocarbon cracking process
IPC: C10G47/14
Filed: 1963-06-14
Abstract: hydrocarbons boiling in the range 400-750 DEG  F. are cracked to lower boiling products in the presence of a C1-C3 alkane and hydrogen, the mol ratio of C1-C3 alkane to hydrocarbon feed being at least one and to hydrogen being more than one, in the presence of a supported platinum-group metal at 50-5,000 p.s.i.g., 650-1,000 DEG F. and 0.05-20 wt./wt./hr. such that there is no net consumption of hydrogen. The ratio of methane, ethane or propane to hydrocarbon feed may be 5-150 : 1 and the ratio of hydrogen to C1-C3 alkane is preferably below 0.3 : 1.  The products contain aromatic hydrocarbons.
Patent GB-761070-A (GB)
Title: Propellant composition
IPC: C06B47/04
Filed: 1953-08-28
Abstract: A spontaneously inflammable fuel composition for thrust engines, such as rocket motors and jet engines, comprises a mixture of fuming nitric acid and a sulphide of formula RR1S wherein R is an alkenyl radicle containing 2-4 carbon atoms and R1 is an alkenyl radicle containing 2-4 carbon atoms, an alkyl radicle containing 1-4 carbon atoms or a phenyl radicle, the amount of nitric acid being from 80 to about 100 per cent of the quantity stoichiometrically required for complete oxidation of the sulphide.  Where commercial fuming nitric acid is employed, a small amount of N2O5 may be added to the acid to render it anhydrous.  Ignition accelerators, such as nitrogen dioxide, sulphuric acid or nitroso-sulphuric acid, may also be added to the fuming nitric acid.  Light hydrocarbon oils may be added to the sulphides.  In the case of di-alkenyl sulphides, other reducing agents, particularly olefinically-unsaturated amines such as vinylamine, allylamine, diallylamine, diallyl toluidine or allyl xylidines, may be added. Sulphides mentioned are divinyl diallyl, dibutenyl, methyl allyl, ethyl vinyl, butenyl butyl and phenyl allyl sulphides and mixtures of these sulphides.  In the examples, fuel compositions are described which consist of white fuming nitric acid and diallyl sulphide (with or without diallyl aniline, furfurylamine or a light hydrocarbon oil having an end point of about 250 DEG F.), divinyl sulphide, dibutenyl sulphide, butenyl butyl sulphide or allyl phenyl sulphide.  In further examples, fuel compositions are described which consist of red fuming nitric acid, or a blend of white fuming nitric acid and sulphuric acid, together with divinyl sulphide, or a blend of diallyl sulphide and a light hydrocarbon oil having an end point of about 250 DEG F.  The nitric acid and the sulphide may be injected separately but simultaneously into the combustion zone of the thrust engine.
Patent GB-337469-A (GB)
Title: Improvements in and relating to wireless and visual systems for use in navigation
IPC: G01S1/02
Filed: 1929-08-03
Abstract: 337,469. Graham Amplion, Ltd., Richets, W. J., and Sinclair, D. Aug. 3,1929. Relaying or repeating systems; bearings and distances, determining; signalling to or from aircraft.-For indicating the route to aircraft or the like, beacon stations located along or on both sides of the route are adapted to emit characteristic wireless or visible signals when excited by wireless signals received from the aircraft or from a controlling station. In the embodiment illustrated, at each beacon station signals received by an aerial 10 and receiver 11 effect the closure at 15 of a circuit through the magnet 18 which closes at 22 the control circuit for the transmitter 13, 12, and at 20 a hold-on circuit for itself.. On the cessation of the exciting-signal the armature 15 falls back and completes a circuit, prepared by the armature 21, through the time-consuming magnet 27 which, after an interval, short-circuits the magnet 18 via 30, 33 and restores the circuits to normal. At sea such a station may be mounted on buoy, energy being supplied by a generator driven by wave-power through a jointed fin. The buoy may carry a lamp or siren. The emitted radiation may comprise twin waves of the type described in Specification 335,967. Thermionic valve circuits. - The apparatus may embody (Fig. 2, not shown) a filamentfailure safety and alarm device of the kind described in Specification 280,841. Each valvefilament is in series with a relay which, on failure of the filament, cuts in a substitute valve. The filament of the latter is 'in series with a heat-coil which acts to cut in an alarm circuit.
Patent GB-258430-A (GB)
Title: Improvements in and relating to clamping devices for stones, such as border stones for graves
IPC: E04H13/00
Filed: 1925-09-25
Abstract: 258,430. Throp, A. Sept. 25, 1925. Grave borders.-Border stones for graves are joined together by securing a wedge-shaped lug B to one stone and a lug C to the other stone at rightangles to the former and joining the parts by a bar D which is pinned to one lug and adjustably wedged to the other by a wedge K. An intermediate hooked guide E is provided for the locking bar. The wedge is provided with notches K<1> so that it can easily be broken at these points.
Patent GB-964770-A (GB)
Title: Improvements in or relating to bricks
Inventor: FALLOON CECIL SAMUEL GORDON
IPC: C04B28/02
Filed: 1959-07-13
Abstract: In a modification of the invention described in Specification 818,221, bricks or the like, formed from a mix of sand and cement in the proportion of 1 part of cement to 6 to 20 parts of sand are pressed out and subjected to a steam treatment at a pressure of 100-200 lb/sq. inch for a period of from 4-15 hours.
Patent GB-1039488-A (GB)
Title: Decorative textile strand or yarn and fabric embodying same
IPC: D02G3/06
Filed: 1965-06-04
Abstract: Decorative effect yarn consists in or comprises one or more continuous, coloured, uncoloured and/or differently coloured, ribbons or tapes of oriented i.e. stretched, stereoregular polypropylene film which may be helically twisted, intertwisted, compressed and crushed, folded or braided into the yarn form or a component thereof and/or such tapes or ribbons may be combined with conventional yarns, threads, strands, tapes, ribbons or filaments.  The yarn may wholly or partly constitute the warp and/or weft of woven fabric which may also incorporate conventional yarns &c.
Patent GB-1275742-A (GB)
Title: Electric pick-up device for supplying an electrical load on a vehicle
Inventor: HENNESSEY DENNIS
IPC: B61L23/00
Filed: 1968-05-20
Abstract: 1275742 Electric collector; railway systems TRACKED HOVERCRAFT Ltd 15 May 1969 [20 May 1968] 23964/68 Heading B7L [Also in Division F2] A vehicle-mounted electric collector device 99 comprises a conducting shoe 17, means for containing a cushion 18 of pressurized gas which in operation biases the shoe, 17 against a conductor 7, and means for continuously supplying gas to the cushion. The collector 9 may be mounted on track-guided hovercraft, Fig. 1 (not shown) propelled by a linear induction motor. In one arrangement, Fig. 2, the device 99 has a tube 10, slidable in a bore 11 in the vehicle 1, and two rigidly interconnected wall portions 12, 13 having peripheral portions 14, 15 turned toward the vehicle forming an annular nozzle 16 directed inwardly towards the tube 10. In operation pressurized gas is fed through the tube 10 and escapes through the nozzle 16 forming a cushion 18 of pressurized gas and thus biassing the shoe 17 against the conductor 7. Current is led from the shoe 17 to the vehicle via a lead 64. In a modification, Fig. 3, the tube 10 slides within a sleeve 19 which itself slides within a bearing 20 in the vehicle 1 thus limiting the height variation of the gas cushion. The outer end of the sleeve 19 has an apertured plate 21 and the end of the tube 10 within the sleeve 19 has a flange 23 which slides within the sleeve 19 and has apertures 24 through which the pressurized gas passes to urge the sleeve 19 away from the vehicle 1. In another arrangement, Fig. 4 (not shown) the wall portions 12 and 13 do not communicate with a tube 10 but the upper wall portion 12 has apertures (25) adjacent the shoe 17 and both wall portions 17 are connected to a central shaft (26) which makes a slidable splined coupling with a shaft 27 rotated by a motor. Air is drawn in through the apertures (25) and expelled through the nozzle 16 centrifugally to form the cushion 18. In Fig. 5, a cylindrical wall portion 32 and a circular wall portion 33 form an annular nozzle 31 through which gas, via a duct 36, is directed on to an inclined wall portion 38 of a circular member 37 to which the shoe 17 is rigidly connected. The member 37 is connected to the wall portion 33 via a linkage 39 which allows movement of the shoe 17 towards and away from the vehicle 1, and may carry the current. In a modification of Fig. 5, Fig. 6 (not shown), the outer cylindrical wall 32 is connected to the vehicle via an annular flexible membrane (45) providing further resilience. The device of Fig. 7 (not shown) is similar to that of Fig. 3, but the shoe is guided laterally by means of members pivoted to an upturned portion at the edge of the plate 21 which members are spring biased towards the conductor. The collector devices may be connected to the vehicle through a pantograph of known construction.
Patent GB-501547-A (GB)
Title: Improvements in amusement apparatus
IPC: A63G7/00
Filed: 1937-09-02
Abstract: 501,547. Amusement apparatus; toys. DAVIES, J. H. Sept. 2, 1937, No. 23983. [Classes 132 (i) and 132 (iii)] An amusement carriage or toy which rises and falls with every revolution of its main carrying wheels has two or more of'its carrying wheels circular or substantially circular and built with their hubs in an eccentric position, each wheel being built heavier on the longer portion separating the hub and the rim of the wheel in that one or more balance weights are attached to one or more of the wheels. At least one of the wheels on an axle is free to revolve thereon, and a skid or additional wheel (Fig. 9) may be fitted to prevent undue pitching of the carriage. Fig. 3 shows a wheel with a choice of hub positions. The guiding wheel in Fig. 9 may be fixed at suitable angles for travelling a desired circumference. The carriage may be driven by human or mechanical power.