baber/WOPTO huggingface dataset:
Patent GB-221811-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K1/26
Filed: 1924-09-10
Abstract: 221,811. British Thomson-Houston Co., Ltd., (Assignees of Freiburghouse, E. H.). Sept. 11, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Drawings to Specification. Cores.-The solid or substantially unlaminated rotatable field member of an alternating-current machine is formed with circumferential grooves on its surface for lengthening the path of the induced eddy currents, and thereby reducing the pole-face losses. The grooves also increase the cooling surface.
Patent GB-221817-A (GB)
Title: A method for compensating the sluggishness of selenium cells
IPC: H04B10/60
Filed: 1924-09-11
Abstract: 221,817. Poulsen, A., and Petersen, A. G., (Assignees of Willadsen, A. O. S.). Sept. 13, 1923, [Convention date]. Photophones and like systems in which the illumination of a selenium cell varies in accordance with a telephone or like current. In an arrangement. for minimizing effects of the cell's inertia, of the kind employing a thermionic valve with the cell circuit connected across the battery and series resistance in the grid circuit of the valve, an inductive resistance is arranged in shunt with the connection between the two circuits. In the arrangement shown in Fig. 1, the inductive resistance 3 with or without a series resistance 10 is connected as shown between the circuit of the cell 1 and the grid circuit of the valve 6, and the plate circuit includes a telephone receiver 9. In a modification employing two valves in cascade the inductive resistance 3 is arranged in shunt with the connection between the plate circuit of the first valve and the grid circuit of the second valve. The impedance of the resistance 3 is preferably slight in relation to the resistance of the cell and the other resistances in the connected circuits. The Specification as open to inspection under Sect. 91 (3) (a) comprises also (1) the arrangement shown in Fig. 2 (Cancelled), in which the circuit A of the cell 1 includes a resistance 13 in a circuit B including a shunted condenser 17 of high impedance and the battery 14 and series resistance 15 in the grid circuit of the valve; (2) a modification employing two valves in cascade in which the resistance 13 and condenser 17 are arranged between the plate circuit of the first valve and the grid circuit of the second valve. This subject-matter does not appear in the Specification as accepted.
Patent GB-934077-A (GB)
Title: Method of reducing corrosion
Inventor: HINES JOHN GRAHAME
IPC: C23F13/00
Filed: 1961-06-15
Abstract: 934,077. Prevention of corrosion by anodic passivation. IMPERIAL CHEMICAL INDUSTRIES Ltd. June 12, 1962 [June 15, 1961], No. 21688/61. Class 123 (1). [Also in Group XXXV Protecting a metal surface from corrosion by anodic passivation comprising the flow of a small current between a cathode and said metal surface as anode supplied from a source of electric potential normally sufficient to maintain the anode potential within the passive range, ab of Fig. 1, but insufficient to drive it beyond the passive range into the transpassive range, see Fig. 1; and when onset of corrosion is indicated by a decrease in the anode potential to or below a predetermined lower limit, i.e. into the active potential range, Fig. 1, and/or an increase in current passed, increasing the applied electric potential by switching means responsive to the anode potential or the current passed, by an amount large enough to induce or restore passivity and when the anode potential has risen to or beyond a predetermined upper limit and/or the current has fallen, decreasing the applied potential to leave connected only the said first source of electric potential. In Fig. 2 the metal surface M is connected via resistor R 1  to battery B and cathode P, this being the circuit for continuous trickle charging. The battery alone comprises the further source of electric potential for an increased current in 2 stages to induce or restore passivation by energizing shunt circuits through switches S 2  and S 1 ; the resistor value of R 2  <R 1 . For details of the control circuit (see Group XXXV). As an example, 18/8 type Cr/Ni steels immersed in 50% sulphuric acid at 80‹ C. can be maintained within the passive range using a current density of 0.1 milliamp per sq. ft. and incipient loss of passivity can be arrested by raising the current density to 1-5 milliamps per sq. ft. To induce passivity initially a current density of 1-10 amps per sq. ft. is required; with iron-base alloys the passive range corresponds to about 1 volt.
Patent GB-142163-A (GB)
Title: Method of and apparatus for the distillation, carbonisation, or gasification of coal, carbonaceous material, oil shales and the like
IPC: C10B1/04
Filed: 1918-12-30
Abstract: 142,163. Christopher, J. E. Dec. 30, 1918. Retort furnaces.-A retort for the distillation of coal, oil shales, &c. is formed with a main external heating-flue B from which the gases, controlled by dampers G, H, pass to one of two auxiliary series of flues or regenerative sections E, F, further heating the retort. The sections E, F may be filled with heat-retaining material, such as bricks, and steam may be passed through each of them, alternately with the waste gases from ports P, Q. After superheating, the steam passes through a port M, controlled by a damper J, to a vertical passage L leading to a chamber K, and enters the retort through passages O. The dampers G, H, J and a two-way cock controlling the steam supply to the ports P, Q may be connected for simultaneous operation.
Patent GB-574144-A (GB)
Title: Improvements in pleatable draw-tape for suspending curtains and the like
IPC: A47H13/16
Filed: 1943-12-31
Abstract: 574,144. Pleatable draw-tape. JOHNSON, F. D. Dec. 31, 1943, No. 21896. Addition to 470,830. [Class 52 (v)] The pleatable draw-tape of the parent Specification is modified so that the drawcords 4 pass either through the front walls of the hook tubes 2 or through those parts of the base tape 1 which form the rear walls of the hook tubes 2. In a further modification the parts of the draw-tape intermediate of the hook tubes 2 are so woven as to form, when the draw-tape is pleated, small pleats through the junctions of which the draw-cords 4 pass. Specification 508,597 is referred to.
Patent GB-516270-A (GB)
Title: Improvements in or relating to locking pins whereby two parts may be secured in predetermined relationship
IPC: B64C3/56
Filed: 1938-07-23
Abstract: 516,270. Fastenings. FAIREY AVIATION CO., Ltd., and TROTTER, J. C. July 23, 1938, No. 21925. [Class 44] [Alsa in Group XXXIII] Locking pins whereby two parts, e.g., folding wings of aircraft, may be secured in predetermined relationship are arranged to move in opposite directions and are connected. by links with an operating lever pivoted on a floating fulcrum so that one pin can be inserted before the other. As shown, the pins k are slidable in a tube m and are pivoted to links r connected to the aircraft through links s. A T-shaped lever p is pivoted at u to a link v pivoted on the aircraft. The lever is connected by links t to the links r. The pins are adapted to be inserted through registering apertures in lugs carried by the stub and folding wing portions. The mechanism may be mounted on either the stub or folding portion and the lever p moves in the space between the two portions. The lever p may have a portion foldable into a recess in the stub portion of the wing. The fulcrum u of the lever, may slide in a guideway or guideways the link v being omitted.
Patent GB-1534904-A (GB)
Title: Batch delivery
IPC: B65H29/66
Filed: 1976-05-26
Abstract: 1534904 Forming gaps in a shingled sheet sequence HARRIS CORP 26 May 1976 [19 June 1975] 21937/76 Heading B8R Shingled sheets 34 on conveyer 60 are separated into batches before stacking, by fingers 75, which are mounted on shaft 80 by parallelogram links 76. When a counter indicates that a batch is complete, rotation of the shaft causes the fingers to move over the shingled sheets, as they pass over roller 120 and have their leading edges 25a, 25b, 25c temporarily splayed apart, at a speed slightly in excess of that at which the sheets pass over the roller. Then rotation of the shaft is stopped and nose 82 enters under a selected edge 25b, so that sheets pile up on the fingers and a gap is formed in the succession of sheets.
Patent GB-172054-A (GB)
Title: Improvements in or relating to cooling provision for internalcombustion engines
IPC: F01P1/08
Filed: 1920-07-23
Abstract: 172,054. White, J., and Wall, A. W. July 23, 1920. Cylinders, cooling; crank chambers.- An engine with terminal exhaust ports b controlled by a sleeve valve f is cooled by a current of air which enters the jacket k at i and after impinging on the ribbed sparking plug o descends through the space l and escapes through the ports p in the jacket, both the spaces k and l being undivided by vertical radial ribs. Another current of air enters the base of the crank chamber jacket r and passes upwards through the jacket s around the sleeve valve. The sleeve valve has radiating ribs u between the exhaust ports.
Patent GB-692795-A (GB)
Title: Improved liquid dispenser
Inventor: GRAVES KENDAL HENRY
IPC: B67D1/00
Filed: 1950-09-07
Abstract: 692,795. Mixingliquids in flow in proportionate quantities. HEATH. Ltd.. W. H. June 14. 1951 [Sept. 7, 19501. No. 22067/50. Class 86 [Also in Group XXVIII] A dispensing apparatus for dispensing a mixture of liquids such as water and fruit essence in desired proportions comprises a pedestal, Fig. 1, through which extends a water supply pipe, a tray 2 carrying containers 1 for fruit essence and mixing devices 9 connected to the water supply pipe and each separately communicating with one of the containers 1 through a tube 7. Each mixing device 9, Fig. 2, comprises a tubular mixing chamber 12, a branch 13 connecting it to the water supply pipe and a branch 14 to which is attached one of the tubes 7, this branch including a metering orifice 18 in a washer 17 and a non-return valve 22. An outlet branch 15 includes a manually operated valve 21 which when opened permits water from the supply pipe to flow through the tube 12 to induce fruit essence from the branch 14 producing a mixture which flows from the outlet branch 15. The washer 17 may be replaceable by one having a different size of aperture or may be adjusted in its position in the branch to regulate the proportion of fruit essence to water. A pres- :sure reducing 'valve is included in the water supply pipe.
Patent GB-1181257-A (GB)
Title: Improvements in or relating to Overdrive Torque Converters
IPC: F16H61/56
Filed: 1967-05-12
Abstract: 1,181,257. Hydraulic torque converters. MAYBACH MERCEDES-BENZ MOTORENBAU, G.m.b.H. 12 May, 1967 [13 May, 1966], No. 22141/67. Heading F2C. An overdrive torque converter having an impeller 2 and a turbine 4, e.g. for dieselhydraulic track vehicles or diesel marine transmissions, is adapted to have maximum efficiency at a predetermined input/output speed ratio by presetting the angle of the turbine blades 5, individually adjustable about radial axes 8 of the torque converter, the torque converter forming one of a series formed from identical parts and each having the turbine blade angle preset to deliver maximum efficiency at a predetermined input/output speed ratio. The blades 5 are mounted between outer and inner turbine rings 6, 7, by pegs (11), Fig. 3 (not shown), on the blades and bolts (12) on ring 7 received in screw-threaded bores in the blades, respectively. To provide gap-free abutment of the blades 5 with the rings 6, 7 in every position of the blades, the rings are formed with spherical surfaces of radii r a , r 1 , whose common centre lies on the intersection of axes 8 and the torque converter rotation axis, as are the blades 5. Various blade profiles for torque converters dimensioned for low or high speed ratios are described, Figs. 2-8 (not shown).
Patent GB-1014845-A (GB)
Title: Improvements in or relating to method of and device for producing a strong photoluminescent light
IPC: F21K2/00
Filed: 1963-06-04
Abstract: <PICT:1014845/C4-C5/1> A light source comprises a plurality of tubular discharge tubes 6 mounted side-by-side between two parallel walls 2, 3, one plate, 2, being light-reflecting, e.g. a metal sheet and the other plate, 3, being transparent, and at least the inner surface of the transparent plate 3 being coated with a fluorescent material 5; the fluorescent material has a high reflection factor for a wide range of the spectrum up to the ultra-violet.  The fluorescent material may also be coated as a layer 4 on the plate 2, and as layer 13 on the sides of the discharge tubes 6 remote from the transparent plate 3.  The lamps 6 may be mercury vapour discharge tubes, cooled by blowing air between the plates 2, 3, and connected in two sets so that the voltages applied to adjacent tubes are out of phase, to avoid stroboscopic effects.  The plates 2, 3 may be detachable and interchangeable to permit changing the colour emitted by the source.
Patent GB-856605-A (GB)
Title: Improved means for measuring the amount of depression of railway sleepers under load
Inventor: INNES JOHN BALFOUR
IPC: E01B35/00
Filed: 1959-06-29
Abstract: 856,605. Linear-dimension gauges. ABTUS Ltd. June 29, 1959, No. 22215/59. Addition to 750,204. Class 106 (2). [Also in Group XXX]. In a modification of the meter described in the parent Specification, for measuring the depression of railway sleepers when rolling stock passes over the tracks, the second pointer is dispensed with and the graduated scale plate is frictionally pivoted about the same axis as the double-arm lever. The instrument is mounted on a tripod base 10 and a strap 17 forms a guide for and limits the movement of the scale plate 16. Lugs 19 on the scale plate act as abutments for the pointer end 15 of the double-arm lever which is frictionally held in position by a spring and nut 20. In use the end 14 of the lever is brought into contact with the rail base and the scale is pivoted until the pointer reads zero thereon. When the rail is depressed the pointer moves to a scale position which is a function of the rail depression and remains in that position. Specification 681,075 also is referred to.
Patent GB-465019-A (GB)
Title: Improvements in or relating to modulator and demodulator networks, for carrier current signalling and the like
IPC: H03C1/58
Filed: 1936-08-12
Abstract: 465,019. Modulating and de-modulating systems. SIEMENS & HALSKE AKT.-GES. Aug. 12, 1936, No. 22253. Convention date, Aug. 12, 1935. [Class 40 (v)] In a modulation or demodulation network comprising a number of dry-contact rectifiers associated with a pair of input circuits and an output circuit, the effective impedance of one or more of said circuits is one-fifth or less of the effective impedance of the rectifier system. As shown, a signal is fed through a filter F1 and transformer Ul to the rectifier system T, and the output is taken from a transformer U2 through a filter F2. The carrier is applied from a source G to centre tappings on the transformers U1, U2, which are of step-down ratio towards the rectifiers. The source G is itself of low impedance or is connected to the rectifier bridge by a stepdown transformer. The input impedance of the rectifiers is reduced by using plates with an area less than one square centimetre and therefore of low capacity.
Patent GB-354044-A (GB)
Title: Improvements in or relating to spark arresters for locomotives
IPC: F23J15/02
Filed: 1930-07-24
Abstract: 354,044. Spark arresters for locomotives. CARPENTER, G., 80, Maiden Lane, New York, U.S.A. July 24, 1930, No. 22367. Convention date, July 26, 1929. [Class 51 (i).] In a spark arrester for locomotives the chamber 4 surrounding the lower end of the stack 1 is pro - vided with an opening in the front wall 8 to which is attached a chamber 10 having an opening covered by a screen 11 concentrically arranged within the smokebox and eccentrically arranged with respect to the opening in the wall 8. Inclined vanes 13 are arranged between the chamber 10 and the smokebox and directing blades 15 are attached to the front wall 14 of the smokebox. Specifications 240,030, 242,452 and 242,794, [all in Class 51 (i), Furnaces and kilns, Combustion apparatus of], are referred to.
Patent GB-799456-A (GB)
Title: A method of securing knots or cross-over points in textile articles such as netted or knitted fabrics composed of single filament polyamide threads
IPC: D06M23/06
Filed: 1956-07-19
Abstract: In order to secure knots or cross-over points, netted or knitted fabrics composed of single-filament polyamide threads are treated with a solution containing an acid which is a solvent for the polyamide, a polyvinyl acetal and an aldehyde.  The acetal may be polyvinyl formal, polyvinyl butyral or polyvinyl acetal and the aldehyde may be the same as that from which the acetal used is derived.  The solution may also contain a diluent miscible with the acid solvent but incapable of dissolving the polyamide.  In a modification, the solution may be applied to the filaments prior to fabrication and the fabric treated with a solvent for the acetal.  In Example 1, polyamide threads are treated with a solution containing polyvinyl formal, acetone, acetaldehyde and formic acid and a net made therefrom is treated with ethyl lactate or a mixture of ethyl alcohol and toluene.
Patent GB-203169-A (GB)
Title: Propulsion and steering of shallow draught vessels
IPC: B63H5/16
Filed: 1922-08-18
Abstract: 203,169. MacGregor, R. Aug. 18, 1922. Screw propellers; driving-arrangements for screw propellers; rudders. -Propelling and steering apparatus for shallow draught vessels consists of a horizontal engine detachably mounted on the deck and geared to turn propeller shafts, each semisubmerged propeller operating in conjunction with a horizontal balanced rudder for steering and reversal. The semi-submerged two-bladed propellers j, are driven by chain gear r and spur gear q respectively from the crankshaft of a horizontal engine k adapted to work on oil or producer gas. Behind each propeller is a balanced horizontal rudder n and beneath is a propeller guard o. The installation is made detachable, alternatively the engine is set with its crankshaft transversely, the ends being fitted with worms operating worm wheels on the propeller shafts. The engine may be single or double acting or with opposed cylinders.
Patent GB-745464-A (GB)
Title: Improvements in or relating to siloxane resins
IPC: C08G77/00
Filed: 1953-08-17
Abstract: A siloxane resin of the general formula <FORM:0745464/IV(a)/1> wherein each R is methyl or phenyl and n has an average value of 1.25 to 1.40, consists essentially of 15 to 37.5 mol. per cent of CH3SiO 3/2 units, 20 to 38 mol. per cent of C6H5(CH3)SiO units, or of both C6H5(CH3)SiO and (CH3)2SiO units, there being not more than 15 mol. per cent of (CH3)2SiO units, 25 to 45 mol. per cent of C6H5SiO 3/2 units and 2 to 15 mol. per cent of (C6H5)2SiO units.  The resin may be made in known manner by cohydrolysis of the corresponding silanes in the presence of solvents such as toluene or ether, or by cocondensation of the corresponding siloxanes, preferably in the presence of a solvent and catalysts such as alkali metal hydroxides or salts of fatty acids.  The setting or curing of the resins may be enhanced by catalysts such as antimony and ferric chlorides, lead naphthenate, zinc or cobalt 2-ethyl hexoate, potassium acetate, benzyl trimethyl ammonium butoxide and benzylidemethyl- or trimethylbetahydroxyethyl ammonium 2-ethyl hexoate.  The resins find use in making glass cloth laminates and for laminating layers of mica, asbestos and other siliceous dielectric materials, to form parts having good dielectric properties.  The resins of Specification 690,595 are disclaimed.
Patent GB-236081-A (GB)
Title: Improvements in the driving mechanism of a talking machine
IPC: G03B31/00
Filed: 1924-09-25
Abstract: 236,081. Okamoto, I. Sept. 25. 1924. Driving; combined working of gramophones with kinematographs.-In order to obtain a constant linear velocity of the record or blank under the stylus in a sound-reproducing or recording machine, the mechanism for driving the machine comprises a reel geared to the turntable spindle,. upon which reel is wound a band that is drawn off at a constant speed. By this means, the angular velocity of the reel, and consequently of the turntable driven thereby, is continuously increased. The invention may be used to obtain synchronism between a kinematograph and a gramophone, by using the kinematograph film itself as the uniformly-moving band which drives the gramophone. In the apparatus shown, the film 7 is drawn by sprocket wheels 8, 8<a> from a reel 5, which is mounted on a spindle 4. This drives, through bevel-gearing or other mechanism, the spindle 1 of the gramophone turntable.
Patent GB-872648-A (GB)
Title: Improvements in or relating to shelving
Inventor: LONGWORTH ALFRED
IPC: A47B97/00
Filed: 1957-07-18
Abstract: 872,648. Shelving; cabinets. PAUL Ltd., W. H. May 14, 1958 [July 18, 1957], No. 22728/57. Class 52(1). Shelving as shown is made of a single bent metal or moulded sheet the vertical parts of which are screwed or stuck to a wall or screwed to battens secured to the wall. Sliding doors 7 may be mounted between adjacent shelves on runners and a sink may be embodied in one shelf. Reinforcements may be mounted in the U-shaped shelves.
Patent GB-1349271-A (GB)
Title: Multiple acting cutter
IPC: B26D3/16
Filed: 1971-04-19
Abstract: 1349271 Severing tubing DART INDUSTRIES Inc 19 April 1971 [2 March 1970] 22784/71 Heading B4B A device for cutting-off predetermined lengths of material, e.g. plastics tubing comprises a pair of cutter members 40, 42 mounted on a rotatable shaft 18, a guideway for the tubing including fixed portions 62, 64 and movable portions 66, 68, the latter movable portions and the cutter member 42 being mounted on an adjustable yoke member 54 so as to permit axial movement of the cutter 42 relative to the cutter 40 and, simultaneously allow the portions 66, 68 of the guideway to move a corresponding amount relative to the fixed portions 62, 64 of the guideway. The cutter-members 40, 42 are each provided with at least one blade 44 arranged to pass through slots 70 formed in anvil blocks 46, 48 in which the guideway portions are mounted. The cutter 40 is secured to the shaft 18 and the cutter 42 mounted on splines formed on the shaft. As shown, the guideway portions are in the form of tubes, the portion 66 being telescopically mounted in the fixed portion 64. The yoke member is adjustable by means of a screw- and-nut device 72. A graduated dial 84 is provided so that the required length of tubing to be cut can set.
Patent GB-1427402-A (GB)
Title: Dewatering of webs
IPC: D21F1/68
Filed: 1973-05-14
Abstract: 1427402 Hydrocyclones DOMINION ENG WORKS LTD 14 May 1973 [18 July 1972] 22866/73 Heading B2P [Also in Division D2] In a web forming machine, liquid issuing as a horizontal jet at a first level of the machine enters a down flow controller device 26 to leave at a second lower level as a non-cascaded substantially de-aerated flow. The device 26 has a substantially vertical tubular body, downwardly inclined liquid entry means 24 at the first level spaced from the upper end of the body and connected thereto in off-centred relation to the longitudinal axis 'of the body to impart in operation downward and tangential flow components to the liquid, while permitting unobstructed up-draft of air and vapour which leaves by an outlet 28 with possible fan assistance. The liquid level within device 26 may be maintained at an optimum level by a control connected to a valve located at outlet 30.