baber/WOPTO huggingface dataset:
Patent GB-390956-A (GB)
Title: Improvements in or relating to echo altimeter apparatus for use on aircraft
IPC: G01S15/10
Filed: 1932-04-22
Abstract: 390,956. Echo-sounding apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Rice, C. W. ; 1161, Lowell Road, Schenectady, New York, U.S.A.) April 22, 1932, No. 11620. Convention date, April 22, 1931. [Class 118 (ii).] Echo-sounding apparatus for use on aircraft comprises a sound transmitter and a sound receiver, which can receive sound waves both directly from the transmitter and also after reflection from the ground, and means arranged between the transmitter and the receiver to enable sound to be produced in the receiver simultaneously with the operation of the transmitter, the sound intensity produced in the receiver by this means being adjustable. The " direct " received sound may be made equal in intensity to the echo at very low altitudes and of greater intensity at higher altitudes. The sound transmitter comprises a whistle 17 situated in a directing cone 2 and operated by compressed gas stored in a reservoir 3 and supplied from the cylinder 12 of the aircraft engine through a cooling device 15 and valves 14, 13. The whistle is controlled by a valve 18 operated by a lever 33 actuated by cams 25, 26 driven by a motor 19. As the cams rotate in an anticlockwise direction the cam 26 rocks a lever 29 to tension a spring 32 connected to the lever 33, this lever 33 being released by the cam 25 to open the valve 18 and shortly afterwards again rocked to close it. The echo is received in a cone 6 and conveyed to a stethoscope 7 through a filter 9. A portion of the transmitted sound is also conveyed directly to the filter 9 through a pipe 10 having a valve 11 to control the intensity of this portion. When the sound is emitted, the lever 33 closes contacts in a circuit containing an electromagnet 35 which releases a pointer 38 rotatable at constant speed adjacent a dial 36 graduated in altitudes. In a modification, the received echo and " direct " sound, after passing through the filter may pass either to a stethoscope or to a microphone. The output from the microphone is received, after amplification, in the headphones of a wireless set, a switch in the headphone circuit allowing the reception of either sound or wireless signals. In a further modification. Fig. 4, the echo is conveyed to a microphone 44 and the " direct " sound is picked up by a microphone 49. 'The two microphones are connected to headphones 43, the relative intensities of the echo and the " direct sound being adjusted by resistances 51, 52. Specifications 204,234, [Class 118 (ii), Signals], and 379,429 are referred to.
Patent GB-478983-A (GB)
Title: Improvements in and relating to colour forming developers and processes of colour development
IPC: G03C7/38
Filed: 1936-04-23
Abstract: Equations are given illustrating the preparation of N-acetyl-2 : 3-naphthindoxyl.  The sodium salt of b -naphthylglycine-3-carboxylic acid is reacted with acetic anhydride to give diacetyl-2 : 3-naphthindoxyl, which may be hydrolyzed to N-acetyl-2 : 3-naphthindoxyl.
Patent GB-673490-A (GB)
Title: Improvements in and relating to regulating systems
IPC: H02P9/32
Filed: 1950-05-10
Abstract: 673,490. Automatic voltage, speed, control systems. BRITISH THOMSON-HOUSTON CO., Ltd. May 10, 1950 [May 21, 1949], No. 11644/50. Class 38 (iv). To regulate the output of an alternator 10, or the speed of a D.C. motor driving the alternator, the output of the alternator is rectified and compared with a reference voltage, the resultant control signal being fed to the control winding of a magnetic amplifier having two load windings connected in a rectifying bridge circuit, the output of the bridge circuit controlling a field of the alternator, or motor. As shown, the voltage output of the alternator 10 is rectified by rectifier 13 and developed across a resistor 18. This voltage is compared with reference voltage tapped off from a resistor 20, such that at a predetermined voltage output of the alternator the potential drop across the resistor 18 is slightly less than that across the tapped-off portion of resistor 20. The resulting control voltage is applied to the control windings of saturable reactors 22, 23 connected in a bridge rectifying circuit 24 fed with A.C. from the alternator output. The output of rectifier 24 is applied to the field winding 31 of the alternator, across which is connected a voltage variable resistance 36 which serves to by-pass any high harmonic voltages which may be present. A rectifier 37 is connected across the output of the bridge 24 to by-pass back inductive current from winding 31. If the output of the alternator varies from the predetermined value the control voltage applied to the control windings of the reactors 22, 23 increases or decreases thereby decreasing or increasing the impedance of the windings in the bridge 24, and varying the current in the winding 31 in a corrective sense. To control the speed of a D.C. motor, Fig. 2 (not shown), which drives an alternator producing a voltage proportional to the speed of the motor and from which the varying portion of the control voltage is derived, the output from the bridge 24 is developed across a resistor in series with the field winding of the motor. Instead of two saturable reactors a single reactor may be used having one control winding and two load windings.
Patent GB-933246-A (GB)
Title: X-ray image intensification system
IPC: H05G1/64
Filed: 1961-03-30
Abstract: 933,246. Television systems for viewing by X-rays. GENERAL ELECTRIC CO. March 30, 1961 [April 26, 1960], No. 11740/61. Class 40 (3). In a television system utilizing an X-ray responsive pick-up device 11 scanned by a scanning beam, to produce signals representative of an object 14 exposed to X-rays from a source 31, the source is pulsed in synchronism with the scanning operation so as to produce X-rays only during the period when the scanning beam is blanked for retrace. In the system illustrated, which operates at a frame rate of one frame per second, the source 31 is pulsed on by negative frame blanking pulses obtained from scanning generator 20 which are differentiated at 43, limited to the negative transient pulses at 45 and then applied to control a pulse generator 47. The final pulses 48a control a relay 49 which short-circuits a cut-off bias source 39 and allows the grid 33 of the X-ray tube, which comprises source 31, to assume a potential at which discharge takes place between cathode 32 and anode 34. Pulse generator 47 may comprise a mono-stable multivibrator whose trigger time is made adjustable so as to provide control of the pulse duration. Reference is made to a system which operates at a higher frame scanning rate, e.g. 15, 30 or 60 frames per second, and the pulse produced by generator 47 controls the grid 33 of source 31 through a step-up transformer. The signal produced by pick-up device 11 is applied through an amplifier 19 to a mixer 24 where it is combined with scanning- control signals obtained from generators 20, 21 and then applied to a conventional magnetic tape recorder 23. For play-back purposes, the tape may be formed into an endless loop and mounted in a conventional magnetic tape reproducer, the signal from which is separated into the picture and scanning-control components and applied to control a cathode-ray picture-reproducing tube, Fig. 2 (not shown). The pick-up device has storage properties and utilizes a photo-conductive material for the X-ray responsive target 12. The invention, which permits a desired X-ray dose to be given by high intensity radiation pulses of short duration, prevents blurring of the viewed images due to the current lag phenomenon of the photo-conductor.
Patent GB-315915-A (GB)
Title: Improvements in and relating to golf game apparatus
IPC: A63B57/00
Filed: 1928-04-21
Abstract: 315,915. Richardson, W. G. April 21, 1928. Golf - practising appliances.-A substitute for a golf hole comprises a ring of wire having a prong by which it is anchored to the ground and a curved guard attached to or associated with the ring. The guard projects a desired height above the ring, and is mounted so as to be adjustable with or around the ring. The ring 11, Fig. 5, is formed with a prong 12, and the semicircular guard 13 has an arm 14 extending to the centre of the ring and having a spike 15 about which the guard may be turned. In a modification, Fig. 6, the spike 21 may be situated at the centre of the ring and connected thereto by an arm 20 while the guard 22 is movably connected to the ring by clips. Two other methods of constructing the guard are described. One consists of forming it principally from one continuous length of wire and the other in riveting a radial strip with its attached spike to a piece of material of half-round section.
Patent GB-588081-A (GB)
Title: Improvements in magnifying apparatus intended for use in the inspection of woven fabrics or textiles
IPC: D06H3/04
Filed: 1939-04-19
Abstract: 588,081. Optical apparatus. LEECH, Ltd., R., and LEECH, R. April 19, 1939, No. 11791. [Class 97 (i)] Apparatus for the inspection of woven fabrics &c. comprises a casing having a magnifying lens in the top, an opening in the bottom below the lens, one or more lamps mounted in the interior of the casing to illuminate the fabric over which it is placed and slots in the walls to enable the user to insert instruments, such as tweezers, for purposes such as -thread counting. As shown in Fig. 1, the casing 1 has a convex lens 2 mounted in an opening in the top 3 and below the lens an open bottom which is placed over the fabric. Batteries 8 in chambers 6 supply current, on closing a plunger switch 11 in the top 3, to four lamps 9 mounted on partitions 7 and serving to illuminate the fabric, which is visible through a square measuring slot in a template, which has upstanding ends to be clipped to the side walls of the casing and which bridges the opening 4. Openings 5 in the side walls enable the insertion of instruments, e.g. tweezers, and by counting the number of threads along one edge of the template slot the number of threads per unit length may be determined. A modification is described in which the lens and opening are at one end of the casing and a lamp, supplied with current from the mains, is at the other end. A template having a slot in the form of a "textile cross is also described and an auxiliary lens movable into or out of the operative position may be provided.
Patent GB-752681-A (GB)
Title: Quaternary ammonium compounds
Filed: 1954-04-23
Abstract: The invention comprises compounds of the formula <FORM:0752681/IV(a)/1> in which Ac is an acid radical.  Such compounds where Ac represents a halide radical are obtained by reacting a 1,6-dihalogeno-n-hexane with b -hydroxyethyl-dimethylamine, or by reacting 1,6 - bis - dimethylamino - n - hexane with an ethylene halogenohydrin, or by reacting 1,6-bis - (b  - hydroxyethyl - monomethyl) - n-hexane with a methyl halide. The corresponding methosulphate is prepared analogously to the last method using dimethyl sulphate in place of halide.  The halides may react with silver salts of appropriate acids to produce salts of other acids. Ac in the above formula can represent chlorine, bromine, iodine, a monovalent radical of sulphuric or phosphoric acid, the acetate radical or a monovalent radical of a polybasic organic acid such as tartaric, maleic or malic acids.  The bis-(b -hydroxyethyl-monomethylamino)-n-hexane can be prepared by reacting a 1,6-bis-halogeno-n-hexane with two mols. of b -hydroxy-ethylamine and treating the di-secondary amine product with diazomethane.  Examples describe the preparation of (1) 1,6-bis-(b -hydroxyethyl-dimethylamino)-n-hexane bromide from 1,6-dibromo-n-hexane and dimethylamino-ethanol; (2) the corresponding chloride from 1,6-bis-(dimethylamino)-n-hexane and ethylene chlorohydrin; and (3) the conversion of the chloride to the acetate by treatment with silver acetate.
Patent GB-418233-A (GB)
Title: Improvements in fluid operated devices for the transmission of power
IPC: F16H47/12
Filed: 1933-04-22
Abstract: 418,233. Variable-speed gearing. FRAME, W. J., 99, Deodar Road, Putney, London. April 22, 1933, No. 11818. [Class 80 (ii).] A fluid - operated variablespeed power transmission device comprises a casing, a plurality of epicyclic impellers disposed therein, and means whereby rotation of a driving-element causes a body of fluid to move centrifugally within the casing and pass through the impeller and so transmit power to a driven member. As shown, a casing 3, Fig. 1, on a driver 1, has a central chamber 6 and radial blades 4, 8, and surrounds a driven disc 10 having bearings 16<a> for a plurality of impellers 13. A pinion 17 on each impeller gears with a wheel 18 on the casing 3. Each impeller has a chamber 14 and radial blades 15, and fluid inlets and outlets 11, 12 are formed in a frame 10<a> associated with the disc 10. Rotation of the driver 1 causes fluid to move from the chamber 6 between the blades 4, 8, and through the impellers to drive the disc 10. The impeller may be provided with axial outlet passages, and the walls of the inlet passages in the frame 10<a> may be eccentrically curved. The disc 10 may be provided with two sets of impellers, one on each side thereof. In a modification in which a disc 63<a>, Fig. 8, carrying the impellers 62 is the driving element, the pinion 61 on each impeller also gears with a toothed wheel 60 carried on an idler 56. In another modification, a driving-shaft 65, Fig. 9, rotates a sun impeller 66 having a gear 67 meshing with pinions 68 on epicyclic impellers 69. The latter are mounted in a casing 71 secured to a driven shaft 72. Vanes 73 on the impeller 66 force fluid through inlet passages 80 to the impellers 69. The fluid returns to the impeller 66 by way of axial outlets 75 and passages 76 formed by vanes 77 fixed in the walls of the casing 71.
Patent GB-1363056-A (GB)
Title: Buckles
IPC: A44B11/14
Filed: 1973-03-12
Abstract: 1363056 Buckles A NORMAN 12 March 1973 11823/73 Heading E2A A buckle of metal or plastics material, for belts or straps, comprises an integral, elongate main body having a base I with lateral, upstanding portions 2 and a transverse, front end portion 9, the rear end of the body being permanently attachable to an end of a belt or strap, a tongue 3 rotatably supported between its ends on the extensions 2 about an axis transverse to the body, means 18 biassing the end 16 of the tongue towards the base 1, the end of the tongue adjacent the rear end of the body being depressible against the bias means towards the base so that the end 16 of the tongue may be moved away from the base, and a transverse slot 6 in the base. The transverse portion has a surface 11 located adjacent the end 16 of the tongue and a tongue engagement surface 15 is arranged such that the distance between the surface 11 and the end 16 of the tongue decreases as the end 16 of the tongue approaches the surface 15 whereby a belt or strap end which may be passed through the slot 6 and between the surface 11 and the end 16 of the tongue is clamped in the buckle. Tongues 21 retain a member 19 having a toothed downwardly curved edge which coacts with an impression 22 in the base 1 of the body and to secure the buckle to the belt 17.
Patent GB-210385-A (GB)
Title: Improvements in and relating to meat-slicing machines
IPC: B26D7/06
Filed: 1923-05-02
Abstract: 210,385. Aktiebolaget Stille-werner. Jan. 29, 1923, [Convention date]. Cutting slices in succession.-In a meatslicing machine the feednut segment is provided with a pivoted re-engaging pawl movable in a plane at right-angles or substantially at rightangles to the feed screw. The feed-nut 4 abuts against a stop 5 at the limit of the movement of the feed-table, the threads of the feed-nut then being adjacent to the plain portion 3 of the feed-screw. The pawl rides over the threads of the screw until the direction of rotation is reversed, when it falls back against a shoulder on the nut segment 4 which is thus reengaged. The pawl is chamfered at 10 to facilitate riding over the threads. As shown in Fig. 1, the nut segment is situated above the feed-screw and the pawl is therefore re-engaged by gravity. The nut-segment may be otherwise situated and the pawl operated by a spring.
Patent GB-878250-A (GB)
Title: Improvements in and relating to rotary brushes
IPC: A46B13/00
Filed: 1959-04-09
Abstract: 878,250. Brushes. OSBORN MANUFACTURING CO. April 9, 1959 [June 10, 1958], No. 12057/59. Class 19. The annular brush elements of Specification 877,427, which is referred to are modified in that the hub is so deformed that the bristle material, preferably twisted tufts, extends radially of the axis of rotation as well as lying in a series of peripherally extending sinusoidal waves.
Patent GB-216665-A (GB)
Title: Means for supporting or attaching girders or rails one to another for overhead runways or other purposes
IPC: E01B9/32
Filed: 1923-05-05
Abstract: 216,665. Sunderland. J. W., and Sutcliffe, W. A. May 5, 1923. Clamps for connecting joists. - Girders a are secured to other girders or supports b by embracing-brackets c, the girders a, b being engaged by clamps or wedges e inserted in the bracket c which are inter-connected by bolts, &c. d. Wedges or abutments may be used between the girders a and the clamps e. The girders a may have the top flange slotted for positioning the brackets c which are then slid into place.
Patent GB-227701-A (GB)
Title: Improvements in or relating to door and like mats
IPC: A47L23/24
Filed: 1924-05-16
Abstract: 227,701. Clarkson, C., and Quint, B. A. May 16, 1924. Mats.-In matting of the kind built up of links 4 threaded on transverse rods 3, sufficient links are removed and metal or composition letters, figures, characters, &c. 1 are secured in the space thus provided, by forming the letters &c. with laterally-projecting eyelets 2 through which the rods 3 are passed. Where necessary the rods may be passed through parts of the letters &c.
Patent GB-1013882-A (GB)
Title: Pigmented emulsion compositions
Inventor: ROGERS LESLIE RICHARD
IPC: D06P1/44
Filed: 1962-03-29
Abstract: Pigmented water-in-oil emulsions useful for textile printing are manufactured by agitating at least one of the water-immiscible liquid vehicles specified below with an aqueous pigment dispersion containing a water-soluble salt of a water-insoluble oleophilic carboxylic acid as a surface active agent.  The specified water-immiscible vehicles are:- linseed oil, bodied linseed oil, castor oil or solutions in water-immiscible solvents of phenol-, urea- or melamine-formaldehyde resins, natural asphaltum, ethylhydroxy-ethylcellulose, rosin or rosin metal salts.  The specified said water soluble salts are the sodium, potassium or ammonium salts of lauric, myristic, palmitic, stearic, oleic, vicinoleic, linoleic and abietic acids, wood rosin, tall oil, the crude fatty acids obtained by saponification of castor or linseed oil and alkyd resins of acid value not less than 50 including alkyd resins modified with fatty acids, rosin or linseed oil which may be employed in amounts 5-25% on the dry weight of pigment.  The pigments may be a wide variety of inorganic and organic pigments including phthalocyamine and azo pigments.  The present process is preferably carried out in the presence of an acid, e.g. acetic acid, which releases the free oleophilic acid or of an agent which forms a carboxylic acid salt soluble in the non-aqueous medium, e.g. calcium chloride and especially cetyl pyridinium bromide.  A water-in-oil emulsifying agent may be used, e.g. aluminium stearate, asphalt, ethyl hydroxyethyl-cellulose or ethyl cellulose.  The oil phase preferably contains at least 75% by weight of liquid aliphatic hydrocarbon having dissolved therein an ethyl hydroxyethyl-cellulose but may also contain aromatic hydrocarbons, ethanol, isopropanol, butanol and diacetone alcohol. The emulsions may further contain known water-or solvent-soluble resins (many listed); cross-linking agents for ethyl hydroxyethyl-cellulose such as lower alkyl ethers of dimethylolurea or hexamethylolmelamine may also be added.  The emulsions may be prepared by dissolving the ethyl hydroxyethylcellulose and any other resins in the solvent and agitating with the pigment, water and solutions of any water-soluble resins used which pigment usually contains a dispensing agent, e.g. a formaldehyde-naphthalene b -sulphonic acid condensate, as well as the oleophilic acid salt.  The emulsions may be printed on to fabrics, e.g. of cotton, by known techniques especially from an engraved roller.  After printing the fabrics may be heated at 100-150 DEG C. for 1-30 minutes.  Examples are given.
Patent GB-125549-A (GB)
Title: A New or Improved Guard or Protector for use in connection with Capstan and like Lathes.
Inventor: TIMBRELL WILLIAM
IPC: B23Q11/08
Filed: 1918-07-26
Abstract: 125,549. Timbrell, W., and Malthouse, J. W. July 26, 1918. Guards, controlling. - A capstan lathe is provided with a pivoted guard and the chuck or collet cannot be closed until the guard is in its protective position. An arm b connected to a sliding fork a, by which the collet is operated, has a boss f sliding on a shaft d to which the guard e is fixed. A projection g on the shaft works in an L-shaped slot in the boss f in such a way as to prevent the guard from being swung back except when the collet is open and to prevent the collet from being closed until the guard is in position. In a modification, the slot has also a helical portion by means of which motion of the fork a closes the guard, and if the guard should be obstructed the collet cannot be closed.
Patent GB-1095888-A (GB)
Title: Improvements in and relating to cooling towers
IPC: F28F25/08
Filed: 1965-03-23
Abstract: 1,095,888. Contacting gases with liquids. C. G. MUNTERS. March 23, 1965 [March 24, 1964], No. 12216/65. Heading B1R. [Also in Division F4] Packing in a cross-flow cooling tower in which water is cooled by contact with air, comprises a plurality of identical corrugated sheets 36, 38 mounted vertically in the tower with alternate sheets turned through 180‹ whereby the respective corrugations 40, 42 of adjacent sheets cross one another and form flow passages for the air and water. The corrugations at the air exit side of the packing merge into ribs or eliminators 44, 46 which are inclined upwardly and trap water particles entrained in the air. At the air inlet side of the packing similarly inclined folds 48, 50 serve exclude light thus inhibiting the growth of algae &c. Water spread is assisted by the provision of fine creases 52 in the sheets, along the corrugations. Preferably two groups of packings are disposed within a generally square tower (Fig. 1) receiving water to be cooled via a conduit (32) and sprays (34) located above the packings Cooled water is collected in a pond (18) at the base of the tower.
Patent GB-746210-A (GB)
Title: An improved method of and apparatus for piercing minerals by an oxy-fuel flame
IPC: E21B7/14
Filed: 1954-04-28
Abstract: 746,210. Thermal, mineral-piercing apparatus. UNION CARBIDE & CARBON CORPORATION. April 28, 1954 [May 19. 1953], No. 12262/54. Class 68(1) [Also in Group XI] Mineral is pierced by the flame from a continuously reciprocating and advancing, oxy-fuel blowpipe, the limits of the reciprocatory movement of said blowpipe with respect to the bottom of the hole being formed being such that the flame operates with maximum efficiency. The relationship between the limits of the reciprocatory movement and the bottom of the hole is maintained by periodically permitting the blowpipe to contact said bottom and then withdrawing it an optimum distance from said bottom. A preferred form of blowpipe is a modification of the one described in Specification 661,135, which is referred to. The modification is that the end portion of the nozzle N comprises a hard metal sleeve T having smooth end and peripheral surfaces, instead of end and peripheral surfaces with teeth formed thereon.