baber/WOPTO huggingface dataset:
Patent GB-687427-A (GB)
Title: An improved instrument for measuring temperature, air velocities, rate of cooling and the thermal conductivity of gases
IPC: G01K7/24
Filed: 1950-06-27
Abstract: 687,427. Electric indicating systems. NATIONAL COAL BOARD, and' WATERS, P. L. June 21, 1951 [June 27, 1950]. No. 16002/50. Class 40 (i). A temperature measuring bridge circuit. has adjacent variable arms respectively comprising a thermistor a in series with a milliammeter b, and a variable resistance d in series with plural fixed range resistances c<SP>1</SP> c<SP>5</SP> selectible by switch e; and adjacent fixed resistance arms f, g. A galvanometer h shunted by fixed resistances j<SP>1</SP>, j<SP>2</SP> selectible by switch i is connected across the diagonal and a variable potential from a battery k is supplied to the bridge from a series network comprising a main switch p, potentiometer l, resistances m, n and potentiometer o; the bridge being connected between the slider of e, and switch arm r alternately connectible to the slider of o or the junction q of m and n. In temperature measurement the bridge is supplied from q, the galvanometer is appropriately shunted and the bridge rebalanced by selection of the appropriate range resistance and adjustment of resistance d, which is calibrated in temperatures. Alternatively the temperature is indicated by the calibrations of the galvanometer unbalance current. The instrument is applicable to the estimation of carbon monoxide by measuring the heatevolved on oxidation with e.g. mercuric oxide. Humidity is determinable from temperature readings of wet or dry thermistors. For gas velocity measurement the bridge is energized from potentiometer o such that a heating current of larger value flows in the thermistor, and is balanced with the thermistor shielded from air currents. The thermistor is then inserted in the gas current, and the bridge is rebalanced, the necessary change in the balance arm being a measure of gas velocity (which is also indicated by the unbalance current indicated by the calibrated galvanometer). For measuring the rate of cooling of a body the bridge supply voltage is adjusted so that the thermistor is heated in a static atmosphere to the body temperature, the bridge is balanced, and the thermistor current is noted; after which it is exposed to the same cooling conditions as the body. Supply voltage is readjusted until the bridge is again rebalanced, and thermistor current measured. The rate of cooling of the body is then proportional to the difference between the squares of the thermistor currents. The thermal conductivities of gases may be measured by reference to the electrical energy indicated by the. milliammeter, which is the energy required, to compensate for heat dissipation from the thermistor surrounded by the gas, and to rebalance the bridge. Specification 558,299 is referred to.
Patent GB-131197-A (GB)
Title: Improvements relating to Couplings for Flexible Hose Pipes.
Inventor: BLAIR ANDREW WALLACE
IPC: F16L31/00
Filed: 1918-10-02
Abstract: 131,197. Blair, A. W., Lewis, A. J., and Park, W. H. Oct. 2, 1918. Joints with yielding outer part compressed- - In an air-tight hose coupling of the character shown in Fig. 1, with a double-ended nozzle piece c, externally tapered split liners dare fitted between the coupling sleeves f and the hosepipe a, b. The sleeves f are internally tapered. Flanged sleeves drawn together by bolts may be employed instead of the screwed connexion at g.
Patent GB-140673-A (GB)
Title: Improvements in or relating to neck-ties
IPC: A41D25/16
Filed: 1919-06-26
Abstract: 140,673. La Lande, A. J. de. June 26, 1919. Neck-ties are made with a lining of swansdown coated on one side with waterproofing-material such as rubber solution.
Patent GB-563754-A (GB)
Title: Improvements in or relating to the separation of solid materials having different specific gravities by means of liquid media
IPC: B03B5/40
Filed: 1942-11-14
Abstract: 563,754. Wet separating. RIDLEY, F. F., and SCHOLES, W. Nov. 14, 1942, No. 16120. [Class 82 (ii)] In the separation of solid granular materials, such as coal or mineral ores, in a liquid medium of density intermediate those of the solids being separated, the sinks settle on a substantially plane imperforate frictional moving surface disposed beneath the path of the floats at a depth sufficient for separation to take place and which raises the sinks out of the liquid by the upward inclination of the surface,: the floats being constrained to move in a rectilinear direction for a length of travel sufficient to ensure the sinking of all heavier material and to discharge independently ofthe moving surface. The solid material is fed from a shoot 12 into'the deep end of a three-sided tank 1 with an upwardly inclined floor and which is traversed by a travelling belt 2 of flexible material, such as canvas and rubber or flexible steel, of approximately the width of the tank and passing over pulleys 3, 4, 5 and 6. Currents are caused to flow in the liquid, preferably at the inlet end and progressively faster towards the shallow end of the tank by the introduction through adjustable inlets 11 of liquid overflow over adjustable weirs 8. The sinks are discharged by the troughed belt 2 on to sieves 25, which may be sprayed with water by sprayers 25a and the liquid from the near sieve 25 is fed back to a pump 10. The floats are pressed by a rotary scraper 13 over a weir or lip 14 and discharged into an inclined, shoot which discharges into a hopper 17 leading to a sieve 9, the liquid from which passes to the pump 10 where with liquid from the sieves 24, 25 is pumped back to the inlets 11. The bulk of the middlings may be pressed by a rotary scraper 21 'over a weir similar to the weir 14 and discharged into a hopper 22 leading to the sieve 24. A scraper 20 may be used to assist the removal'of any middlings deposited on the belt 2. To prevent clogging of the belt, a shallow channel or channels 26 may be formed by side tracks 27 and a central track 28, Fig. 8, the liquid being circulated in the channels by a pump 29. Alternatively, sludge trays 30 provided with draw-off pipes may be provided. The sides of the tank may be inclined so that the bottom is narrower than the top and the tank may have part of its bottom flat and the rest inclined or may be in two parts, each of the same shape as the tank 1 and each traversed by a belt 2. The liquid medium may be composed of a suspension of finely ground solids in water. Specification 563,779 is referred to.
Patent GB-318845-A (GB)
Title: Improvements in or relating to pneumatically operated percussive tools
IPC: B25D9/14
Filed: 1928-06-05
Abstract: 318,845. Knibbs, R. A., and Wakeford, L. S. June 5, 1928. Percussive tools.-A device for stopping the percussive action when the tool is not pressed on to the work comprises a piston-like enlargement 8 on the anvil block or tool shank, which, on an abnormal forward movement of the tool 3, closes the exhaust passage 10, and, later, the exhaust port 11. Cushioning is provided by the face 12 of the exhaust chamber being recessed below the ports 11. Another arrangement is described in which the exhaust ports 11 are closed by a shoulder on the part 4 of the anvil block.
Patent GB-872309-A (GB)
Title: Improvements in and relating to tachometer signal generators
Inventor: COLLINS DEREK NORMAN
IPC: G01P3/49
Filed: 1958-05-20
Abstract: 872,309. Induction generators. SMITH & SONS (ENGLAND) Ltd., S. May 19, 1959 [May 20, 1958], No. 16213/58. Class 35. In a tachometer signal generator comprising two stators 12, 14 provided with windings 15 . . . 17 and having their polepieces 11a &c., 13 &c. disposed on opposite sides of an electricallyconducting body 10 mounted for rotation relatively to the stators and drivable by a device whose speed is to be measured, one stator 12 has twice as many polepieces as the other stator 14, those of the stator 12 are arranged in pairs, e.g. 11a, 11b with a winding, e.g. 15 embracing each pair, and each polepiece, e.g. 13b of the other stator 14 is disposed opposite two adjacent polepieces, e.g. 11b, 11c of two pairs of polepieces of the stator 12. When the input stator windings are fed with alternating current and the body 10 is stationary there is negligible linkage of input stator magnetic flux with the output windings and when the body 10 is rotated a path 19 for magnetic flux produced by eddy currents is provided linking the input stator and output windings. As shown, the body 10 is a cylindrical aluminium drag cup, the stators 12, 14 form the respective input and output members, and the windings of each stator are connected together either in series or parallel. Specification 618,003 is referred to.
Patent GB-768146-A (GB)
Title: Improvements in or relating to cylinder head constructions for liquid cooled fuel injection compression ignition engines
Inventor: GOLDSMITH CHARLES NORMAN
IPC: F02F1/24
Filed: 1954-06-01
Abstract: 768,146. Cooling fuel injectors. RICARDO & CO., ENGINEERS (1927), Ltd. May 18, 1955 [June 1, 1954], No. 16255/54. Classes 7 (2) and 7 (3). A fuel injector housing 22 extends across the liquid cooling space of a cylinder head and an internal wall 30, surrounding but spaced by an annular clearance 32 from the housing 22, extends across the cooling space so as to divide it into two chambers communicating with one another through the annular space 32, the inlet and outlet passages for flow of cooling liquid through the cylinder head being so arranged that a flow of cooling liquid takes place from the chamber in which the outer end of the housing 22 is situated through the space 32 into the chamber adjacent the inner end of the housing 22 so that the liquid impinges upon the inner wall 12 of the cylinder head immediately around the end of housing 22 The inner end of the housing 22 is located in fluid-tight manner in a recess 23 in the inner wall 12 of the cylinder head and its outer end is screwed into the outer wall 15, the injector 24 being inclined to the cylinder axis at about 20‹. The cooling liquid enters the cylinder jacket at 33 and flows through a passage 35 into the chamber on the upper side of the internal wall 30. The restricted passage 32 produces a high velocity stream of cooling liquid flowing along the sides of the injector housing 22 towards the inner end of the housing and improves the cooling of the injector. A small aperture 37 permits steam and air to escape from the chamber above the wall 30. The Provisional Specification states that the cylinder head may be provided with an internal buttress wall as described in Specification 766,187.
Patent GB-674698-A (GB)
Title: Laminated structure and method of manufacturing the same
IPC: B29D23/00
Filed: 1950-06-30
Abstract: 674,698. Hose pipes. WINGFOOT CORPORATION. June 30, 1950 [March 29, 1950], No. 16377/50. Class 99 (ii). [Also in Group VIII] A laminated tubular article comprising a layer of a thermoplastic such as polythene and a layer of rubber is made by assembling the two layers with an interposed intersticed reinforcement, forcing portions of the thermoplastic through interstices of the reinforcement, and vulcanizing the rubber while causing it to form around or interlock with the extruded portions of thermoplastic. The rubber may be natural, synthetic, or a rubber substitute. The reinforcement may be open weave fabric, screening material, or a braid of textile cord or wire. A hose may be formed with a polythene tube 7 over which is braided a textile reinforcement 8. A rubber cover 9 is extruded over the reinforcement and the tube is subjected to heat and pressure, e.g. by sheathing the hose in lead and applying air pressure to the interior of the hose while heating the lead sheath. Alternatively the inner tube may be rubber and the outer polythene.
Patent GB-353599-A (GB)
Title: Improvements in methods and devices for measuring positional deiects of the eyes
IPC: A61B3/08
Filed: 1930-05-28
Abstract: 353,599. Siglit-testing apparatus. ZEISS, C. [FIRM OF], Carl-Zeiss-Strasse, Jena, Germany. May 28, 1930, No. 16388. Convention date, June 7, 1929. [Class 81 (ii).] In a method of finding positional defects of the eyes two projected images, each visible to one eye only, are caused to coincide by adjustment of the apparatus by the person under test. Apparatus for carrying out the method comprises a stand b on which two projection apparatus g<1>, g<2> are mounted in universal joints d<1>, e<1>, f<1>, d<2>, e<2>, f<2>, and are adjustable together, vertically by the guide r<2>, Fig. 2, and screw r<1> and horizontally by the guide r3 and screw r<4>. In addition the apparatus g<2> is adjustable vertically on the guide r<6> by the pinion r<7> and flexible shaft r<8> and horizontally on the guide r<12> by the slide r<9> and shaft r<11>. The apparatus g<1>, g<2> are also rotatable on the axes o<1>, o<2> and scales s<1>, s<2>, s<5> are provided for reading the various adjustments. Each apparatus comprises a light source h<1>, Fig. 3, a lens i<1>, a diapositive j<1> consisting of a disc having a red or green transparent cross therein, prisms k<1>, l<1> and objective m<1>. A head rest (not shown) is provided for the patient, who wears spectacles of corresponding colours to the two diapositives.
Patent GB-1366824-A (GB)
Title: Self cooling oxygen lance
IPC: C21C5/46
Filed: 1972-04-10
Abstract: 1366824 Oxygen lances MESSER GRIESHEIM GmbH 10 April 1972 [10 April 1971] 16459/72 Heading F4B A self-cooling oxygen lance comprises an inner tube 1 and an outer tube 2 having a narrow gap between forming a passage for the oxygen. The outer tube may be of ceramic and both tubes are cooled by the oxygen passing through the gap. A spiral element 3 in the gap increases the speed of the oxygen travelling through the lance. The pitch of element 3 may vary over the length of the lance.
Patent GB-1393546-A (GB)
Title: Reaping or mowing machine
IPC: A01D34/80
Filed: 1972-04-10
Abstract: 1393546 Mowing machines FFSA 10 April 1972 [23 April 1971] 16505/72 Heading A1F [Also in Divisions Fl and F2] A mowing machine has two or more rotary cutting drums 20, each driven by a respective hydraulic motor 19-19e, and the motors are connected to a common pump 21 by way of a fluid distributor 23 which has a plurality of chambers, fed from a common inlet but each chamber has a separate outlet which is connected to an inlet of a respective one of the motors. The outlet of each motor is connected to a reservoir 22 via a common return line. The chambers have the same cubic capacity and each contains a pair of externally toothed meshing gears 28, 29, one gear 28 of each pair being connected to the corresponding gear in the adjacent chamber or chambers.
Patent GB-111328-A (GB)
Title: Improvements in the Production of Aminoalkylesters and of Alkylaminoalkylesters of Para Aminobenzoic Acid.
Filed: 1916-11-21
Abstract: 111,328. Bader, W., and Levinstein, Ltd. Nov. 21, 1916. Aminoalkyl and alkylaminoalkyl estcrs of paminobenzoic acid are prepared by heating paminobenzoic alkyl esters with an aminoalcohol or alkylaminoalcohol in the presence of a small quantity of the aluminium compound of the aminoalcohol. An example is given of the preparation of the diethylaminoethyl ester. The aluminium compounds of the aminoalcohols may be prepared in known manner or may be formed in the reaction mixture, say, by addition of aluminium amalgam. Specification 17162/05 is referred to.
Patent GB-602160-A (GB)
Title: Improvements in sensitive photographic materials
IPC: G03C1/09
Filed: 1946-06-14
Abstract: 602,160. Photographic emulsions. KODAK, Ltd. (Eastman Kodak Co., Trivelli, A.P.H., and Smith, W.F.). June 14, 1946, No. 16676/47. Divided out of 602,158. [Class 98 (ii)] A sensitive silver halide developing-out emulsion is stabilized by the incorporation of a complex halide of rhodium. The halide may have the formula R2RhX6 or R3RhX6, wherein R is H, an alkali metal, or ammonium, and X is a halogen atom (e.g. Cl or Br). Details of speed, gamma, and fog values with the addition of ammonium chlororhodate under different conditions are given. The use of ammonium chlororhodite is also referred to. The compound may be added before or during precipitation of the silver halide, before or during the first digestion (ripening), before or during the second digestion, or just before coating (before or after the addition of sensitizing dyes). A reducing agent (ascorbic acid) and sulphur sensitizers (e.g. thiourea, allyl isothiocyanate, thiosinamine, or a metal or ammonium thiocyanate, including one or more thiocyanates with a sulphur sensitizer other than a thiocyanate) may also be added. Both the rhodium compound and the sulphur sensitizer are preferably present during the second digestion, and the pH of the emulsion is preferably adjusted to between 5 and 7. The emulsions may be sensitized with any of the usual dyes, e.g. erythrosin, Congo Red, monomethine-, trimethine-, pentamethine-, or heptomethine. cyanines, merocyanines, hemicyanines, or hemioxonols, and supersensitizing mixtures may be used. Hardening agents, setting agents, or stabilizing agents may also be added. Specifications 450,958, 479,970, 515,145, and 517,769 are referred to.
Patent GB-1038434-A (GB)
Title: Improvements in or relating to brush holders for electric motors
IPC: H01R39/38
Filed: 1965-04-21
Abstract: 1,038,434. Brushes and brush-holders for dynamo-electric machines. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 21, 1965 [April 24, 1964], No. 16780/65. Heading H2A. A brush holder comprises an insulating rectangular tubular member 1, preferably of nylon, having a removable cap 2 and a longitudinal slot 9 through which extends a metal tag 10 attached to the end of the brush 6. The tag 10 is preferably retained against a shoulder at the left-hand side of the brush 6 by means of the terminal turn of the helical spring 13 engaging a groove 11 in the brush 6. The cap 2 has an inwardly directed flange 2a which snaps over projections 3 in member 1. The right-hand end of slot 9 is stopped so as to prevent the spring 13 contacting the commutator 5 when the brush has become worn.
Patent GB-566653-A (GB)
Title: Processes for the synthesis of pyrazine-monocarboxylamide
IPC: C07D241/24
Filed: 1942-11-26
Abstract: Pyrazine-monocarboxylamide is prepared by esterifying pyrazine-monocarboxylic acid, e.g. by boiling, with an alcohol such as methanol or ethanol in the presence of sulphuric acid, and treating the resulting mixture with ammonia without isolating the ester.  Specification 451,304 is referred to.
Patent GB-1176997-A (GB)
Title: Improvements in Sieve Elements
IPC: B07B1/48
Filed: 1967-04-12
Abstract: 1,176,997. Sieves. SKELLEFTEA GUMMIFABRIKS A.B. 12 April, 1967 [15 April, 1966], No. 16796/67. Heading B2H. A sieve element, e.g. for a vibratory sieve, comprises a sieve cloth 1 of elastomeric material, e.g. rubber strengthened by addition of carbon black, provided with rows of openings 7 with elastic reinforcements 6, e.g. cord, firmly arranged between the rows and secured to a rigid, e.g. steel, frame 5 along the edges of the sieve cloth. The reinforcements 6 may be embedded in ribs 2 on the underside of the sieve cloth 1 which may also be provided with ribs 3, Fig. 4, on its upper side and which has a thicker L-shaped rib 4 along its edges, the frame 5 being received by vulcanization in a branch of the rib 4. The cloth 1 and the ribs 2, 3, 4, may be made in one piece by mould-pressing. Alternatively, the ribs 3 may be secured to the cloth by vulcanization or glueing. The reinforcements 6 may extend in the direction of travel of the material to be sieved and be secured to opposite sides of the frame 5. The elastic reinforcements may alternatively be embedded in, or secured to the underside of the sieve cloth. In Fig. 4, the sieve element is secured to a sieve frame 8 by clamping the edge rib 4 between an angleiron 9 and a rubber rib 10 by means of a clamping device 12, a rubber rib 21 being used as filling material. Fig. 5 shows two sieve elements, with no upper ribs 3, jointed together by a rubber lock bar 18 and a clamping device 20.
Patent GB-169491-A (GB)
Title: Improvements in resilient wheels
IPC: B60B9/28
Filed: 1920-06-22
Abstract: 169,491. Cassidy, G. June 22 1920. No Patent granted (Sealing fee not paid). Spring wheels.-Telescopic spokes, hinged to flanges 4, 5 on the hub and to lugs 6 on the rim, comprise plungers 8 and cylinders 7, in which are inflatable chambers 16. Between adjacent spokes semi-circular springs 19 are secured to the rim with their ends bearing on the spokes. Casings 18 may be placed round the plungers.
Patent GB-1193806-A (GB)
Title: Plasticised High Molecular Weight Transpolypentenamers
Inventor: HAAS FRIEDRICH
IPC: C08L65/00
Filed: 1969-04-01
Abstract: 1,193,806. Polypentenamer compositions. FARBENFABRIKEN BAYER A.G. 1 April, 1969 [11 April, 1968], No. 16898/69. Heading C3P. Compositions comprise (a) 100 parts by weight of a high molecular weight polypentenamer containing predominantly trans-bonds, having a Mooney viscosity of 50 to 200 (ML4<SP>1</SP> at 100‹ C.) and preferably a specific viscosity of 300 to 1200 cc./g. in 5 per cent solution in toluene at 20‹ C., and (b) 20 to 100 parts by weight of a plasticizer, the polymer being obtained by ring opening polymerization of cyclopentene, preferably in the presence of a tungsten compound Group I to III organometallic catalyst and optionally after-treated with a sulphur chloride or Friedel-Crafts catalyst which may be activated with ethyl aluminium dichloride or t-butyl chloride. Specified plasticizers are mineral oils, polybutenes, polymers of butadiene and/or isoprene and optionally propylene, butene, styrene or vinyl toluene, pine tar, colophony, coumarones, linseed oil, ethers, thioether esters, and esters of adipic, azelaic, phosphoric, phthalic and sebacic acids. The compositions are preferably prepared by adding the plasticizer of an organic solvent solution of the polymer and removing the solvent, e.g. by steam distillation. The compositions may be compounded with vulcanizing ingredients, e.g. sulphur and sulphenamide or thiuram accelerators, optionally with zinc oxide and higher fatty acids, and vulcanized or covulcanized, e.g. with natural rubber. Examples describe the vulcanization and covulcanization with natural rubber of compositions of polypentenamers and high aromatic plasticizer oils.
Patent GB-1284333-A (GB)
Title: Thread delivery and storage device
Inventor: ROSEN KARL ISAC JOEL
IPC: D04B15/50
Filed: 1970-04-09
Abstract: 1284333 Thread accumulators; winding and unwinding machines; tensioning devices K I J ROSEN 9 April 1970 [11 April 1969 9 Jan 1970] 16920/70 Headings DID D1F and D1J Thread is supplied as required at substantially constant tension by an accumulator comprising a plurality of rollers 2-5 spaced around a central shaft 1, at least one of the rollers (in this case 3, 4 and 5) being driven, and at least one of the rollers (in this case, all) being inclined out of parallel with the central shaft, so that as the rollers are rotated, thread wrapped around them is moved down the rollers and more thread is drawn on at 9. One of the rollers (2) has an axle 18 which is pivoted at one end 21; and moves in a slot 23 at the other, so as more windings are accumulated the roller swings, under the influence of the yarn tension, towards the centre shaft, a lever arm 32 mounted on the axle 18 then acting on a switch 16 to stop the driving motor 10. The thread is withdrawn over end through a guide 37 after passing over the bulged edge 27 of a disc 26 driven by shaft 1 to rotate in the same direction as the rollers. A friction ring 28 having inclined spring fingers applies tension to the withdrawn yarn.