baber/WOPTO huggingface dataset:
Patent GB-837441-A (GB)
Title: Improvements in or relating to arc-extinction chambers in electric circuit-breakers
Inventor: ANDRE LATOUR
IPC: H01H9/34
Filed: 1956-09-20
Abstract: 837,441. Arc-rupturing in switches. ETABLISSEMENTS MERLIN & GERIN. Sept. 20, 1956 [Sept. 22, 1955], No. 28753/56. Class 38 (5). In an arc-chute having insulating plates 10 ... 15 with slots Fr, Fl extending alternately on either side of a centre line C, C<SP>1</SP> conducting plates 11a, 13a, 15a are inserted in alternate spaces between the insulating plates so that the arc is divided into parallel sections in which the current flows in the same direction with the result that electrodynamic forces expand the arc sections into loops as indicated at a2, Fig. 1C. Specifications 702,834, 723,837 and 754,276 are referred to.
Patent GB-897636-A (GB)
Title: Improvements in apparatus for tamping soil and the like
Inventor: HAWKINS JOSEPH CHARLES
IPC: E02D3/068
Filed: 1957-09-12
Abstract: 897,636. Percussive tools. WARSOP POWER TOOLS Ltd. Dec. 12, 1958 [Sept 12, 1957; June 9, 1958], Nos. 28796/57 and 18371/58. Class 124. A tamper has a foot connected to an arm, a motor unit pivotally mounted on the arm about a horizontal axis, and a motor driving crank connected to the arm by a spring connection to oscillate the arm with respect to the motor unit, relative movement of the foot and motor unit being vertical. As shown, a foot 2 is connected to an arm 10 by a piston rod 4 and cylinder 8, the arm being pivoted at 14 to a motor unit including two triangular frames 16, 18, 20. An arm comprising two parts 22 and two parts 24 is pivoted to the motor unit at 24a and the free ends of the parts 22 are pivoted to the foot 2. The arm 10 has two depending parts 12 which are connected to the two parts 24 by springs 32 and 34 and the arm 10 is connected to the arms 22 by a spring 30. An internal combustion engine drives a crank 36 pivoted to the arm 10. In a modification, Fig. 5 (not shown) two straight parallel arms are pivoted to a motor unit about a common axis and may have one or two feet, in the latter case the rear foot imparts a weaker blow than the front foot.
Patent GB-225048-A (GB)
Title: Improvements in or relating to brushes
IPC: A46B9/02
Filed: 1923-08-17
Abstract: 225,048. Barnett, C., and Barnett, W. Aug. 17, 1923. Brushes with bristle surface inclined.-Some or all of the bristle-tufts, set at right angles to a flat surface of the stock, have their ends bevelled in the same transverse plane to form a continuous brushing surface which is disposed at an inclination to the flat stock surface and extends along the whole length of the brush. In the nail brush shown in Fig. 3 the ends of the bristles are bevelled to form a V-shaped brushing surface. Fig. 4 shows an arrangement wherein the bristles are cut to form two differently-inclined surfaces B<2>, B<3>. In other arrangements some of the bristles are formed to provide one or more inclined brushing surfaces while the rest of the bristles provide a surface parallel to the inner surface of the brush stock.
Patent GB-666573-A (GB)
Title: Improvements in or relating to cutting and abrading tools
IPC: B23D71/00
Filed: 1948-11-08
Abstract: 666,573. Making cutting and abrading tools, gratings, &c. BOOTH, C. H., and HARDWICK, H. B. Nov. 3, 1949 [Nov. 8, 1948], No. 28991/48. Class 83 (ii). [Also in Groups I, VI and XXIII] A cutting element for use as a file, rasp or cutting band or disc comprises a thin flexible strip of hardenable steel having holes 1 with cutting edges 2 formed by upset portions of the edges of the holes, each edge having a cutting clearance angle A relative to the surface of the strip and being differentially hardened relative to the remainder of the strip, which thus retains its flexibility. The cutting edges may be formed and hardened as described in Specification 666,621. The strip has a thickness of between 0.003 and <SP>1</SP>/ 32  inch and the holes 2 are arranged in V-shaped rows, the holes in one row being staggered in relation to those in adjacent rows. The holes may be either circular and countersunk, Fig. 8, with rather less than the rear half of the circumference upset to form the cutting edge, or D-shaped, with the cutting edge formed by the straight part of the hole. The amount by which the cutting edge projects from the strip is from 3 to 15 thousandths of an inch and varies from a maximum at the centre of the edge to nil at the ends. For use on soft materials such as wood or leather, the clearance angle A would be about 10-50 degrees and the rake angle B about 45 degrees, decreasing in both cases until, for moderately hard metals, they would be about 7 degrees and 10-15 degrees respectively. The shear angle provided by the V-shaped arrangement of the rows may be varied as required and may differ in amount or direction for different cutting edges. Cutting edges may be provided on both faces of the strip. The strips may be bent into a tube to form a round file or rasp or a rotatable drum having cutting edges inside or outside or both. Alternatively, two or more strips may be joined by welding, brazing or mechanical joints to form tools as exemplified in Figs. 12 and 13 and may have supporting strips 24a or 31; the cutting- edges are omitted over a portion of the tool to form a handle 33. The strips may also be used with backing members to form tools as described in Specification 666,622. The tools are stated to be applicable to making wood wool, to stripping motor tyres for retreading and to peeling vegetables, in addition to the normal operations in which files, rasps or abrasive sheets, bands and dies are normally used.
Patent GB-290684-A (GB)
Title: Improvements in the production of titanium compounds and pigments
IPC: C09C1/00
Filed: 1926-11-17
Abstract: 290,684. Spence & Sons, Ltd., P., and Crundall, S. F. W. Nov. 17, 1926. Pigments are prepared by reacting an insoluble titanium phosphate with a base in the form of an oxide, hydroxide, or salt of a volatile or weak acid such as a carbonate. The phosphate may be treated in suspension with a solution or suspension of the base, preferably by boiling, and the product be calcined; or the phosphate and base may be mixed intimately in a dry state, and the mixture be calcined. When a soluble or readily fusible phosphate, such as sodium phosphate, is obtained be the reaction, it may be washed out with water; when, on the other hand, an insoluble phosphate, such as calcium phosphate, is obtained, this may either remain in the product, or be removed by a dilute acid, as desired. By treating a mixture the titanium phosphate and barium sulphate a white pigment may be obtained; and by using as the base, ferric or chromium oxide, coloured pigments result. In examples, a mixture of basic titanium phosphate and ferrous sulphate is calcined at 700-800‹ C. to give a red pigment, and a mixture of basic titanium phosphate, barium sulphate, and ammonium bichromate is calcined at 700-800‹ C. to give a green pigmer.t.
Patent GB-196946-A (GB)
Title: Improvements in and relating to devices for cooling dynamo-electric machinery
IPC: H02K9/26
Filed: 1921-11-01
Abstract: 196,946. Stevens, H., and Premier Cooler & Engineering Co., Ltd. Nov. 1,1921. Transformers are cooled by means of a wet-air cooler, the machine b and the cooler d being connected by a conduit c shaped on the Venturi principle and by a conduit e to form a closed air system. Doors h, l are provided so that the cooler may be shut off and the machine opened to the atmosphere.
Patent GB-793864-A (GB)
Title: Improvements in gas purifying apparatus
IPC: C10K1/22
Filed: 1954-10-08
Abstract: 793,864. Gas purifiers. HOLMES & CO., Ltd., W. C., FROGGATT, R. J. C., CULLING- WORTH, J. E., and COOPER, C. Sept. 22, 1955 [Oct. 8, 1954], No. 29010/54. Class 55 (2). A gas purifying apparatus comprises a cylindrical vessel 2 enclosing a plurality of superposed containers 1 for supporting the gas purifying means, each container 1 occupying nearly the full diameter of vessel 2 and having an inner duct section 7 which connects with the corresponding duct sections of adjacent containers to form a central duct, the weight of the containers 1 being carried solely by the central duct. As shown, the vessel 2 is mounted on supports 3 and the lowest container 1 rests on a flange 4 attached to supports 5 situated within a tubular extension 6 of vessel 2. The section 7 of each container 1 has integral flanges 8, 9, the upper flange 9 having a stepped recess 10 in which a flexible ring 11 is mounted. Flange 4 is similar'to flanges 9. The top of the central duct is sealed by a plate 12 bolted or clamped in position. The vessel 2 has a cover 14 abutting a flange 16 integral with the vessel and similar to flanges 9. Gas entering inlet 18 passes through sections 7, ports 20 in the walls thereof and through wooden grids 21 supporting iron oxide 22 to reach the outlet 19.
Patent GB-298570-A (GB)
Title: Improvements in or relating to steam superheaters
IPC: F22G7/14
Filed: 1928-10-09
Abstract: 298,570. Soc. Anon. des Etablissements Delaunay-Belleville. Oct. 11, 1927, [Convention date]. Controlling superheat. -A regulated portion of the steam on its way to a, superheater 6 placed between the tubes of a, water-tube boiler is passed through an auxiliary superheater 8 placed behind the main superheater in the path of the furnace gases. The valve 9 controlling the quantity of steam passing through the auxiliary superheater may be operated by hand, or by a thermostat 10 in the steam distribution pipe 7.
Patent GB-901142-A (GB)
Title: Improvements in pressure relief valves
Inventor: BENNETT CYRIL FREDERICK
IPC: F16K17/06
Filed: 1958-09-10
Abstract: 901,142. Valves. N.V. TOOLS Ltd. Sept. 9, 1959 [Sept. 10, 1958], No. 29018/58. Class 135. A pressure relief valve consists of a casing formed of two parts 10, 11 with a sealing-ring 12 between them and enclosing a sleeve 15 in which is mounted a spring-loaded plunger 16 having a head 16a of resilient material such as polyvinyl chloride coacting with a seat S in an inlet passage 14. The head 16a is secured to the plug by a threaded stud 17 and a nut. The plug has grooves 19 opening to a hollow interior so that fluid that has passed the valve head flows into the interior of the sleeve and then excapes through holes 15c at the outlet end of the sleeve. The sleeve is screw-threaded into the housing parts and has a hexagonal hole 15b whereby it can be turned for adjustment of the pressure exerted by the loading-spring 20. The ends of the body parts have tapped fixing holes 21, although flanges may alternatively be provided.
Patent GB-1073143-A (GB)
Title: Improvements in or relating to apparatus for cleaning exhaust gases
IPC: F01N3/038
Filed: 1964-07-15
Abstract: 1,073,143. Exhaust purifiers. KATASHI AOI. July 15, 1964 [July 17, 1963; Feb.26, 1964], No. 29148/64. Heading F1B. Exhaust gases pass into a spherical expansion chamber 5 and then through openings in its wall into a filter chamber 6 in an outer casing 17. A spherical inner chamber 3 has a portion 16 of its perforated wall unperforated to deflect the entering gases outwardly through the expansion chamber 5 into the filter chamber, from which the gases flow through perforated partitions 7... 11. When the material in chamber 6 becomes clogged, the gases pass through an opening 12 into a second expansion and filter section B and finally, when this is clogged, through opening 13 into a third section C. The filter material may be carbon, coke, glass wool or metallic fibres.
Patent GB-484157-A (GB)
Title: Improvements in or relating to electric oscillatory circuits
IPC: H03K4/10
Filed: 1936-10-28
Abstract: 484,157. Valve generating circuits. GEIGER, M., and TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Oct. 28, 1936, No. 29330. [Class 40 (v)] A saw-tooth oscillator comprises a switching- device, such as a thermionic valve 19, Fig. 4, for interrupting a current through an inductance coil 18, the resulting voltage being applied through a step-down transformer to charge a condenser 16 rapidly through a unilateral conductor 15, and the condenser being discharged slowly through a shunt resistance 17. The interruptions are effected by negative pulses applied to the grid of the valve 19, and at each interruption oscillations tend to be set up in the circuit 18, 16. Owing however to the unilateral conductor 15, the oscillation cannot proceed beyond the stage of charging the condenser 16, and this charge gradually leaks away across the resistance 17 to provide the slow sawtooth stroke. The condenser may be coupled to the coil 18 by an auto-transformer tapping, or by separate coils. The condenser 16 may be replaced by two condensers in series with their junction connected to a point of fixed voltage, to provide symmetrical scanning- voltages, Fig. 5 (not shown). As shown in Fig. 6, the voltage across the condenser 16 is fed into the grid circuit of the valve 19 in series with the trigging impulse with the result that a saw-tooth current is developed in the plate circuit of the valve, which current may be used for electromagnetic scanning.
Patent GB-994100-A (GB)
Title: Fluid flow meter
IPC: G01F1/64
Filed: 1963-07-24
Abstract: 994,100. Measuring fluid flow. BODENSEEWERK PERKIN-ELMER & CO. G.m.b.H. July 24, 1963 [July 24, 1962], No. 29357/63. Heading G1R. An apparatus for measuring the velocity of flow of a gas the level 7 of a liquid in a container 1 is raised above an opening 3 of a gas supply line 4 by energizing a coil 11 to attract a spring loaded ferromagnetic member 6 downwardly into the liquid. The gas flowing from the line 4 carries a liquid film 20 upwardly along a pipe 2 which film 20 bridges the ends of two bar electrodes 14 to start a time measuring apparatus. After a predetermined distance along the electrodes 14 the film 20 is destroyed by an electrical filament 17 to open circuit the electrodes 14 and stop the time measuring apparatus.
Patent GB-1105129-A (GB)
Title: Conversion of crimped tow into staple fibre yarn
IPC: D01G1/08
Filed: 1965-07-12
Abstract: In the direct conversion of a crimped tow of continuous filaments into a staple fibre yarn or a spinnable sliver, the tow is opened with deregistration of crimps in adjacent filaments by the method and apparatus described in Specifications 1,001,813 and 1,042,064.  The opened tow may be collected into cans or as ball warps and a plurality thereof combined prior to cutting into 3 1/2 " or 1 1/2 " lengths, forming into sliver, stuffer-box crimping, pin drafting and spinning by cotton or worsted system.  The sliver and/or yarn is free from shivers or neps, or such normally unwanted conglomerations and entanglements may be allowed to accrue at regular intervals to product effect yarns.  The filaments may be of regenerated cellulose, acetate or triacetate, nylons, polyesters, vinyl, acrylic and olefine polymers and copolymers.
Patent GB-174183-A (GB)
Title: Improvements relating to internal combustion turbines
IPC: F02C5/02
Filed: 1920-10-19
Abstract: 174,183. Puplett, T. J. Oct. 19, 1920. Working-fluid supply.-In internal-combustion turbines comprising one or more vane wheels a secured to a shaft n, the combustion chambers d are charged by annular pistons o, and the exploded gases are delivered to each vane-wheel through two sleeves b, c, the sleeve b being stationary while the sleeve c is periodically moved to bring its passages c' into alignment with the passages b<1> in the sleeve b. The movement of the sleeve valve c is produced by the pressure of the explosion on pistons e connected to the sleeve. One of the pistons e is also actuated from a cam shaft g for the positive operation of the sleeve valve c.
Patent GB-275842-A (GB)
Title: Improvement in cam shafts
IPC: F16H53/02
Filed: 1926-11-23
Abstract: 275,842. Yassenoff, I. Nov. 23, 1926. Shafts.-Cam shafts, preferably of untempered steel, for internal combustion engines are provided with cams 10 and bearing-journals 3 welded thereto and preferably formed hollow, the cams of tubes or bent strips and the journals of two hollow cylinders with their edges welded together. As shown in Fig. 4, grooves 4 are formed in the shaft adjacent to chamfers 5 on the parts 3, 10, forming pocliets into which iron 6 is welded. The parts 3, 10 may be of high speed steel or of temperable metal, in which case they are hardened by carbonization before being secured in position, after which the entire assemblage is heated and quenched, with the effect that the parts 3, 10 are tempered and the shaft remains tough and untempered so that, if necessary, it may be straightened. The shaft is preferably hollow, and lubricant may pass from the shaft centre to the journal surface by holes 7, 8.
Patent GB-885540-A (GB)
Title: Deposited latex article and process for making same
IPC: B29C41/14
Filed: 1959-08-31
Abstract: 885,540. Dip-moulding latex garments &c. INTERNATIONAL LATEX CORPORATION. Aug. 31, 1959 [Sept. 9, 1958(2)], No. 29648/59. Class 87(2). [Also in Group VII] In forming an open pocket in a deposited latex garment 21 (see Group VII), a latex-separating film 29 is placed on part of the surface of a partially formed garment between successive dipping operations so as to form a closed pocket, and the latex and film are then trimmed at 32 to open the pocket. The latexseparating film may comprise polyethylene, " Cellophane " (Registered Trade Mark), aluminium or tin foil or a closed envelope of woven or knitted fabric impregnated with latex or coated on its inner surface with a plastics material. To form a reinforced pocket as shown, the film 29 is sandwiched between fabric layers 25 prior to incorporation in the garment. Specifications 636,344, 764,306 and 764,307 are referred to.
Patent GB-757921-A (GB)
Title: Improvements in roller scouring machines for washing textile fabrics
IPC: D06B3/26
Filed: 1953-10-27
Abstract: <PICT:0757921/IV(c)/1> <PICT:0757921/IV(c)/2> In a finishing machine for the washing of textile fabrics the fabric is arranged in an endless band T and passes first through a hollow cylinder, wherein it is condensed walls of the cylinders, and then, on emerging from the cylinder between pressing rollers 2, 3, the fabric leaving the rollers being returned to pass through the hollow cylinder via a bath of washing liquid.  The apparatus shown comprises three hollow cylinders formed in a single casing mounted in a rack 12, liquid connection being made to the cylinders through the pipes 18 (of which only one is shown in the drawing) stop cocks 19 and a main feed pipe 20.  The feed pipe 20 may be connected alternatively to a cold-water or a hot-water supply or to a supply of a liquid containing washing ingredients.  The liquid expressed from the fabric by the rollers 2, 3 is collected in a wooden receptacle 14 having a discharge outlet whereby the liquid may be discharged to a drain.  The fabric in passing from the rollers 2, 3 back to the hollow cylinders passes through liquid contained in the bottom of the external vat 1.  An aperture 29 at the bottom of the vat is connected to a jointed pipe 30, Fig. 3, which may be so positioned by means of the rod and chain mechanism 31, 32 that the liquid discharged from the receptacle 14 through the conduit 27 connected to the outlet 26 is transferred to the bottom of the vat 1.
Patent GB-409282-A (GB)
Title: Improvements in stiffening devices for maintaining the creases in trousers
IPC: A47G25/72
Filed: 1932-10-24
Abstract: 409,282. Trousers. DODINGTON, S. P., 65, Shirley Road, Roath Park, Cardiff. Oct. 24, 1932, No. 29712. [Class 141.] To maintain a crease in trousers, a stiffener is inserted at the bottom thereof, and a fastener or clip used therewith. As shown in Fig. 1, applied to a trouser with terminal cuffs portions, the fabric is gripped by a spring clip b and a stiffener a suitably positioned inside the leg part. The clip may be integral with the stiffener as shown in Fig. 12. In modifications, the clip may be spring hinged, or may be in two parts connected together by pins piercing the stiffener and trouser leg. Either or both the clip and stiffener may have wings, n<2>, m2, Fig. 5, to engage the trouser leg. Additional strips of canvas may be also clipped in position for stiffening purposes.
Patent GB-687608-A (GB)
Title: Fog lamp for vehicles
IPC: B60Q1/124
Filed: 1950-12-05
Abstract: 687,608. Vehicle fog lamps. MELZER, J. Dec. 5, 1950 [Dec. 14, 1949], No. 29739/50. Class 75(iii) A vehicle fog lamp is constructed so that the source of light is carried forward in front of the vehicle by means of an inflatable trunk which is elongated and braced by compressed air or exhaust gas. The trunk is made from collapsable material and when not in use is rolled up by a spring-actioned rolling device fixed to the front of the vehicle. The trunk is extended by inflation against the action of the spring of the rolling device. If the extended trunk collides with an obstacle it gives way. When the lamp is operated a space is created between the front of the vehicle and the source of light in which space fog remains unlighted and does not therefore reflect the light from the lamp.
Patent GB-638389-A (GB)
Title: Improved method of bending metal tubing
IPC: B21D9/15
Filed: 1947-11-08
Abstract: 638,389. Fillings. JENKINSON, Ltd., W. G., and JENKINSON, H. A. Nov. 8, 1947, No. 29799. [Class 83 (iv)] In bending tubes, ice is used as a filler to prevent buckling &c. A tube or part of a tube is plugged at one end, filled with water and frozen before bending. A substance such as ammonium chloride may be added to the water to reduce the size of the ice crystals and fillers of sawdust, cotton-wool, asbestos or rope may be used with the water to break up the ice core or provide reinforcement.
Patent GB-633074-A (GB)
Title: Improvements in and relating to frequency dividing apparatus
IPC: H03K25/00
Filed: 1946-10-07
Abstract: 633,074. Pulse frequency dividing circuits. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). Oct. 7, 1946, No. 29861. [Class 40 (vi)] A cathode coupled flip-flop is arranged so that the coupling capacitor is discharged in steps until the flip-flop reverses its state, whereupon the capacitor is recharged to commence the next cycle. Negative pulses are limited by valve 11 to give constant output positive pulses which charge capacitor 43 over diode 42a and discharge capacitor 22, capacitor 43 being discharged over diode 42 when the pulse ceases. A negative-going step wave is built up on capacitor 22 until the flip-flop 23, 24 reverses, recharging capacitor 22 and feeding an output pulse to device 44. Capacitor 22 recharges by grid current in valve 23, and may take a time greater than one repetition period so that capacitor 22 is discharged in fewer steps.
Patent GB-415904-A (GB)
Title: Improvements in or relating to rubber covered rolls
IPC: D21F3/10
Filed: 1933-10-27
Abstract: 415,904. Paper-making machine rolls &c. MILLSPAUGH, W. H., 101, Columbus Avenue, Sandusky, Ohio, U.S.A. Oct. 27, 1933, No. 29899. [Classes 42 (ii) and 96.] A perforate or imperforate roll e.g. a suction roll for paper manufacture comprises a shell 1 having a groove or grooves 2 parts of which are in angular relation with each other, and a rubber cover 3 firmly interlocked therewith so that it is prevented from becoming loose or creeping in any direction. The grooves 2 may be sinuous, zig-zag, &c. and extend circumferentially, longitudinally, or helically or as right and left-handed plane intersecting helices, and may be undercut. Holes 4 through the shell and cover avoid as far as possible the edges of the grooves. The outer surface of the metal roll between the grooves may be roughened.