baber/WOPTO huggingface dataset:
Patent GB-976661-A (GB)
Title: A new or improved rack and pinion steering gear
Inventor: ALDERTON HOWARD KENNETH
IPC: F16H55/28
Filed: 1960-03-02
Abstract: 976,661. Toothed gearing. CAM GEARS Ltd. April 5, 1961 [March 2, 1960], No. 7407/60. Heading F2Q. In a rack-and-pinion steering mechanism for vehicles the rack 6 is formed with flat or curved sliding surfaces 6a which co-operate with correspondingly shaped surfaces of a spring-pressed thrust pad 7 which urges the rack into mesh with a pinion 2. As shown, the spring pressure on the pad 7 may be adjusted by inserting shims 10 between a cap 9 and housing 5. The spring, Figs. 2 and 4 Provisional (not shown), may be replaced by belleville washers positioned between the pad and an adjusting screw in the cap, or may be replaced by a rubber block. In the Figure Complete (not shown) the sliding surfaces on the rack are in the form of a V-groove and the pad has a complementary V-shaped projection.
Patent GB-691474-A (GB)
Title: Improvements in or relating to tooth and denture brushes
IPC: A46B5/00
Filed: 1950-03-24
Abstract: 691,474. Toothbrushes. SHAVAX KHARSHEDJI KARANJIA. Aug. 10, 1950 [March 24, 1950], No. 7413/50. Class 19. A toothbrush comprises a brush head carrying bristles; a handle including a shank and a neck for joining the shank to the brush head, the neck being integral with the head and the shank having a hollow end externally screwthreaded to receive a screw thread on the neck; and a cap adapted to be mounted over the brush head and having screw threading to engage with an external screw thread on the handle. In Fig.. I the shank 1 merges into a neck 2 which carries a brush head 3 in which are embedded bristles 4. The brush head and neck are made as a separate unit detachable from the shank by being screw threaded at 5 the screw thread being adapted to be received in an internal screw-thread 6 in the end of the shank 1. The brush handle is made so that the part above the screw-thread 6 is of circular shape and carries an external screwthread 8. The screw-thread 8 is a reverse thread to the screw-thread 6, and is adapted to co-operate with an internal screw-thread 9 in the open end of a cap 10. Holes 11 may be provided in the cap for ventilation purposes and a pocket-clip 12 may be attached to it. In Fig. III an alternative arrangement is shown in which two screw-threads are provided on the shank 1 and only one on the neck 2. The neck 2 is provided with a single lower screw-thread 5 adapted to engage in an internal screw thread 6 in the end of the shank 1. An external screwthread 13 is provided on the shank 1 to receive the internal screw-thread 9 on the cap 10. The cap clip may be attached by any of the usual methods, e.g., the cap may be in two parts with a screwing device provided to take a ring collar to which the clip. is fixed.
Patent GB-571471-A (GB)
Title: Improvements in or relating to gas turbine plants
IPC: F02C1/08
Filed: 1943-05-11
Abstract: 571,471. Gas turbine plant. SULZER FRERES SOC. ANON. May 11, 1943, No. 7445. Convention date, May 30, 1942. [Classes 110 (i) and 110 (iii)] Compressed air or other gas, from L. P. and H.P. compressors 1, 2, driven by a turbine 6 is heated by the exhaust gases from the turbine, in an exchanger 4, part of the compressed air being further heated in tubes T in a combustion chamber 5 and passing to the turbine, the remainder acting as combustion air in 5 and actuating a turbine 7 giving external power. Coolers 3, 8, for the air, are provided. Make-up air supplied to the system by a compressor 9 enters the exchanger 4 at a temperature approximately the same as that of the air in the tubes 13 at that point. The compressor 9 can be fitted with devices for adjusting the pressure, or quantity of the air delivered, the speed remaining approximately constant. The first row of guide blades may be adjustable, and the specification states that the first rotor may be designed as a turbine using kinetic energy imparted to the air in consequence of reduction of cross-sectional area in the adjustable guide blading. The number of stages used in the compressor 9 may be varied. A change-speed gear may be fitted between the turbine 6 and the compressor 9 so that by altering the speed of the compressor the pressure and the quantity of the air-delivered can be adjusted. The exhaust from turbine 7 may be used externally of the plant.
Patent GB-112577-A (GB)
Title: An Improved Automatic Counter.
Inventor: BOYD ARCHIBALD EDWARD
IPC: G06M1/04
Filed: 1917-05-25
Abstract: 112,577. Boyd, A. E. May 25, 1917. Counters actuated by reciprocating members.- The units counter wheel is carried by a pinion 15 actuated by wedge-shaped lugs 13, 14 upon a, reciprocating bar 9. This bar is moved in one direction by a. lever 1 carrying a pawl 7 which is operative in one direction of the movement of the operating-member and slips past in the other direction under the control of a spring 5. The return movement of the bar 9, which completes the actuation of the counter, is effected by a spring 16. A single-tooth Geneva-type transfer is provided and a padlocked opaque slide prevents reading of the counter by unauthorized persons.
Patent GB-582212-A (GB)
Title: Improvements in or relating to marine propulsion plants, comprising at least one reversible internal combustion engine which has a supercharging compressor
IPC: F02B37/10
Filed: 1944-04-24
Abstract: 582,212. Motor power plant; turbines. GOLLIEZ, G. April 24, 1944, No. 7616. [Class 110 (iii)] [Also in Groups XXVII and XXXIII] A reversible marine internal-combustion engine plant, having a supercharger and a turbine driven by exhaust gas, is worked so that the supercharging pressure is higher when the engine runs in reverse than when it runs forward. The torque thus produced counteracts the action of the slip stream on the propeller when the ship is being braked by reversing the engine. The normal super-- charging pressure is reached at a lower reverse speed than the forward speed, and may even be provided when the engine is stationary. As shown, the supercharger 2 is driven by the engine crankshaft and the difference of pressure is provided by having separate exhaust turbines, 5, 6 for forward and reverse running respectively, having different back pressures, which turbines are connected to the propeller shaft by a fluid coupling 14 and gearing 13. A valve 7 directs the exhaust to the appropriate turbine. The reverse turbine may have more stages or more restricted nozzles. A single turbine may be adapted by arranging for the nozzles to be cut out or for the flow passage to be restricted either before or after the nozzles when the engine runs in reverse. This is effected by a piston controlled by exhaust pressure and subject to further fluid pressure when the engine is reversed. A reversing gear is incorporated in the shaft 17. It may, however, be effected by a simple mechanical connection with the engine reversing control lever. The supercharger may be driven by a separate prime mover which may only be used when the engine is in reverse. The exhaust driven turbine may oe coupled to this drive; The supply of exhaust to the turbine may be entirely stopped by a valve which is closed when the engine is put in reverse, exhaust gas then flowing through a bye-pass controlled by a spring-pressed valve.
Patent GB-140397-A (GB)
Title: Improvements in and relating to power actuated shovels or the like
IPC: B66C3/12
Filed: 1920-03-15
Abstract: 140,397. Ball Engine Co., (Assignees of Armstrong, E. J.). Dec. 6, 1916, [Convention date]. Driving-gear for winding and paying-out apparatus; apparatus with jointly-controllable drums.-In an excavator of the clam-shell type, hoisting and closing lines pass to separate drums which are driven through clutches from a single engine, and the controlling-device for the clutch on the closing-drum comprises means for making the engagement of the clutch insufficient to move a loaded clam shell. In the form shown, the clam shell 6, opened by weights 20, is hoisted by a line 12 passing to a drum 15 and is closed by a line 18 passing over pulleys 16, 17 and back to a drum 19. The drums are driven from an engine 22 through gears 25, 28 and clutches each comprising a band encircling the respective drum and fixed to pins 37, 39, Fig. 4, on the respective gear, the pin 39 being carried by an eccentric 40; a spring-pulled arm 48 coupled to a piston 46 rotates the eccentric to engage the band when pressure fluid is admitted through the hollow shaft 29 to the cylinder 44. The clutch for the closing-drum comprises also a pivoted spring- pulled arm 82 adapted to engage the respective arm 48 and, when fluid at reduced pressure ia supplied to the cylinder 44, limit the engagement of the hand so that the closing-line 18 is maintained taut but the pull is insufficient to lift the clam shell. The operation is controlled by a hand-operated slide valve 61 which controls ports 71, 73, Figs. 6 and 7, connected to the hollow shafts of the hoisting and closing drums respectively; with the valve in the extreme right-hand position, a port 77 bridges the ports 71, 73 and connects them to an exhaust port 75, both drums being then disengaged; in the intermediate position, a port 79 admits fluid from an inlet 65 through port 73 to operate the closing-drum clutch; in the next position, shown in Figs. 6 and 7, the port 79 admits fluid through port 71 to operate the hoisting-drum clutch, while port 73 is open to the fluid supply through a restricted port 80 and to exhaust through a restricted port 81, to effect the partial engagement of the closing-drum clutch. A foot-lever 94 operates a band brake to hold the hoisting-drum while the clam shell is opening.
Patent GB-323173-A (GB)
Title: Process for the production of artificial filaments, fibres, bands, sheets, films andthe like of a high lustre from aqueous cellulose solutions
IPC: D01F2/00
Filed: 1928-12-04
Abstract: 323,173. Kindermann, H. Dec. 4, 1928. Cellulose xanthates: cellulose solutions. - Artificial silk, staple fibres, films and the like are prepared from aqueous cellulose solutions, such as viscose or cuprammonium solutions, by preliminary coagulation, for example in an ammonium sulphate bath. followed by treatment in a strong sulphuric acid bath, containing from 45-50 per cent by weight of sulphuric acid, at a temperature below 10‹ C. whilst they are simultaneously subjected to a high tension. Filaments produced in this manner possess a very high lustre and a high web tenacity and it is possible to spin very fine denier filaments. In examples viscose is spun into a preliminary coagulating bath containing ammonium sulphate, the length of filament in the bath being 20-40 centimetres, and then treated in a bath containing 48 per cent of sulphuric acid by weight at 5‹ or 10‹ C., the length of filament in the water being 2 or 6 centimetres respectively; a cuprammonium cellulose solution is spun into a preliminary coagulating bath containing water at 60‹ C. or dilute caustic soda, the length of filament immersed being 15 centimetres and then treated in a bath containing 45 per cent by weight of sulphuric acid at 5‹ C., the length of filament immersed being 30-40 centimetres. Reference has been directed by the Comptroller to Specifications 264,161 and 283,481.
Patent GB-1011457-A (GB)
Title: Producing noble-metal patterns on heat-resistant supports
IPC: C03C17/10
Filed: 1964-02-25
Abstract: In a method of producing a noble metal pattern (gold, silver or platinum) on a surface of a heat resistant support such as glass or ceramic material, the surface is first coated with a photo-hardening composition such as cinnamic acid polyvinyl ester which becomes insoluble under the influence of light.  The surface is then exposed behind a positive mask of the desired pattern, followed by treating the surface with a solvent or developer, such as a mixture of xylene and ethylene glycol in which is dispersed a fine heat-resistant powder that does not melt, sinter together or sinter to the surface, such as Al2O3 or TiO2. The surface is then heated to 200  DEG C. for ten minutes to harden the exposed insoluble composition, and then washed with water to which a small amount of wetting agent is added, to remove the heat resistant powder not absorbed by the hardened composition.  A noble-metal compound, such as a gold resinate paste, is then applied to the surface, which is then heated to a temperature at which the noble metal compound is decomposed into metal and the hardened composition is decomposed and burned.  Finally, the heat resistant powder together with the noble metal deposited outside the pattern is removed with a soft brush.  Cr, V and Bi may be added to the gold resinate in small quantities.
Patent GB-953974-A (GB)
Title: Improvements in radiant tubes for furnaces
Inventor: RICHMOND TERENCE BERNARD
IPC: F23C3/00
Filed: 1962-03-01
Abstract: 953,974. Radiant tubes. BRAYSHAW FURNACES Ltd. Feb. 28, 1963 [March 1, 1962], No. 7929/62. Heading F4B. A radiant tube A, heated by a burner d is divided by a longitudinal partition B. The burner d delivers through a passage d<SP>1</SP> at one side of the partition, an exhaust flue d<SP>2</SP> leading from the other side of the partition B. Some of the combustion products are recirculated through a gap between the partition B and the end D of the tube. The tube A is of elliptical cross-section, and the partition B is formed of refractory blocks b resting in channel irons b<SP>1</SP> secured to the walls of the tube A. The channels b<SP>1</SP> are formed in sections, spaced apart to allow for thermal expansion, and one end of the channels may be closed, a pin b<SP>2</SP> securing the blocks within the other end of the channels. The tubes may be arranged horizontally on either side of the work, or may be arranged above and below a conveyer for the work.
Patent GB-612331-A (GB)
Title: Process for polymerising polymerisable substances in the form of an emulsion
IPC: C08F2/22
Filed: 1946-03-14
Abstract: In a polymerization process polymerizable substances are passed continuously in aqueous emulsion through an apparatus, fresh monomer being added at one or more points between the beginning and the end of the path covered by the emulsion in the apparatus. Monomers specified are vinyl chloride and acetate, vinylidene chloride, acrylic and methacrylic esters, styrene and fumaric acid esters.  The apparatus may be a series of chambers the liquid flowing in one direction only.  Fresh monomer may be added as such or as an emulsion of the same pH as that in the apparatus. Copolymers may be so prepared.  Sodium cetyl sulphate is specified as emulsifier.
Patent GB-435454-A (GB)
Title: Improvements in or relating to electric cables
IPC: H01B7/282
Filed: 1934-03-14
Abstract: 435,454. Impregnating-compositions for electric insulation. PIRELLI-GENERAL CABLE WORKS, Ltd., and HORLEY, R. E., 343, Euston Road, London. March 14, 1934, No. 8095. [Class 140] [See also Group XXXVI] The metallic conductors of electric cables are provided with waterproof paper insulation consisting of paper tapes which have previously been dried and then vacuum impregnated with a flexible waterproof insulating compound of such high melting point as not to melt at the working temperature of the cable. The compound should not melt below 60‹ C., and may consist of bitumen, wax, petroleum jelly, or a mixture thereof, with or without oil or rosin or both : for example, a mixture of 80 per cent medium hard bitumen and 20 per cent paraffin wax or 75 per cent hard petroleum jelly and 25 per cent gum rosin, may be employed.
Patent GB-104283-A (GB)
Title: Improvements in Tire Protectors.
Inventor: GAHAN WILLIAM HENRY
IPC: B60C27/00
Filed: 1916-06-08
Abstract: 104,283. Gahan, W. H. June 8, 1916. Hooks, safety.-In a wheel tyre attachment comprising hooks 8 engaging chain links 2, each link is provided with a collar 3 which can pass the inturned lip of the hook only when opposite the notch 11.
Patent GB-1482852-A (GB)
Title: Castor
IPC: B60B33/00
Filed: 1975-02-27
Abstract: 1482852 Castors SUGATSUNE  INDUSTRIAL CO Ltd 27 Feb 1975 [7 Aug 1974 31 Oct 1974] 8309/75 Heading A4U A castor comprises a connecting member 1 having a lower cylindrical portion, a wheel 4 having a pair of shafts 7 projected from respective opposite sides thereof, and a main body 3 having a tubular portion 2 rotatably receiving said cylindrical portion and an arc-shaped wheel-accommodating- and-bearing portion 6 having a pair of arc-shaped side walls (6') spaced apart to receive the wheel therebetween and forming bearing recesses 8 for receiving the shafts 7, the walls (6') extending downwardly to form resilient portions 10 for preventing slip-off of the wheel 4. Main body 3 may comprise elastic plastics material. As shown, shafts 7 are integrally formed with the wheel and are rotabably received in the recesses 8. In a modification Figs. 4 and 5, (not shown), the wheel comprises an axle assembly (111) having a pair of opposed shafts (107) received in the bearing recesses (108) and a roller (104') rotatably mounted on the axle assembly (111) by a ball bearing (119).
Patent GB-1058784-A (GB)
Title: Improvements in or relating to centrifugal driers
IPC: B04B11/08
Filed: 1965-02-26
Abstract: 1,058,784. Spin driers. SOCIETE FIVES LILLE-CAIL. Feb. 26, 1965 [Feb. 27, 1964], No. 8364/65. Heading F4G. Spin dried clothes are discharged through a central aperture 10 of a continuously operating spin drier basket 4 at the lower end of a vertical shaft 12, which basket has a central aperture 10 normally closed by a member 16 on a sleeve 18 slidable on the shaft 12, by a discharge device comprising a blade 36 secured to the lower end of a vertical shaft 38 secured to a tube 40 constituting the cylinder of a jack 42 so as to be vertically displaceable and which is rotatable about a vertical axis by a further jack 60. The blade is therefore displaceable between a withdrawn position in which it is spaced sufficiently far apart from the axis of the drier basket (the full lines in Fig. 2, not shown) to permit the passage of the closure member from a position beneath the blade to a position above the blade, and an operative position in which the tip of the blade is disposed adjacent the wall of the basket and the heel 37 of the blade is disposed at a distance from the axis of the basket which is smaller than the radius of the aperture 10. A guiding cam 62 fast on the blade shaft bears on the sleeve 18 when the blade is in the operative position to limit rotation of the blade to the basket wall. A locking device comprising a lug 64, Fig. 3 (not shown), secured to arm 24, which is pivoted by a further jack 26 to raise and lower the member 16 prevents rotation and vertical displacement of the blade shaft 38 when the member is in the lowered position.
Patent GB-1343011-A (GB)
Title: Apparatus and a method for detecting gas
IPC: G01M3/20
Filed: 1972-02-23
Abstract: 1343011 Detecting leaks COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CITALCATEL 23 Feb 1972 [23 Feb 1971] 8398/72 Heading G1S [Also in Division B1] Apparatus for detecting the presence and location of gas leaks comprises a gas receiver 1, a converter 2 for dissociating molecules of the gas into at least two parts of which the first part has a molecular mass less than a predetermined value, a trap 7 for removing molecules having a molecular mass greater than the predetermined value and a mass spectrometer 11 for analysing the first part of the gas. The converter 2 may comprise a tubular envelope enclosing at least two electrodes 3, 5 which are connected to a voltage source to provide a potential drop across two of the electrodes. A magnetic field may be provided across the envelope and a platinum or tungsten filament maintained between 400‹ and 600‹C. may be arranged in the envelope. The gas receiver 1 which may be tubular and provided with a needle 17 partially blocking an inlet aperture 18 is connected to the converter 2 which dissociates the gas into heaver and lighter molecules and leads the molecules to a cold trap maintained at the temperature of liquid nitrogen. The cold trap 7 in which the heavier gas molecules are trapped is connected to a diffusion pump 9 and a primary pump 8 and an outlet for the lighter molecules leads to the mass spectrometer 11 which is supplied from a power source 15 and is linked to a read-out device 14 by way of an amplifier 13.
Patent GB-403612-A (GB)
Title: The manufacture of ureas
IPC: C07C309/51
Filed: 1932-03-21
Abstract: Asymmetric ureas are made by causing salts or esters of cyanic acid other than the isocyanates of aminoazobenzene and its derivatives to act upon aminonaphthol sulphonic acids.  In examples (1) H acid is condensed with 4-nitrophenylisocyanate in benzene to form the corresponding nitro-urea which may be reduced; some 4<1>.4<1>-dinitrodiphenylurea is formed as a by-product; the following isocyanates may also be used: 3-nitrophenyl, 4-chlorphenyl, 2 : 5-dichlorphenyl, p-tolyl, p-anisidyl, naphthyl, benzoylaminophenyl, chlorbenzoylaminophenyl, nitrobenzoylaminophenyl, propyl, isopropyl, butyl, isobutyl and benzyl, and potassium and sodium cyanates; other aminonaphthol sulpho acids are also specified, (2) H or J acid is condensed with potassium cyanate in aqueous acetic acid.  Specification 377,278 is referred to.
Patent GB-248579-A (GB)
Title: Improvements in metal reinforcing fabric for concrete roadway foundations and the like
IPC: E04C5/04
Filed: 1925-03-30
Abstract: 248,579. British Reinforced Concrete Engineering Co., Ltd., and Hall, E. B. March 30, 1925. Reinforced concrete.-A wire fabric for reinforcing concrete road foundations and of the type composed of crossed wires looselv interlaced and tied bv small wire ties, has one or both ends of each wire spotwelded to the end or boundary wire, as shown in Fig. 1 for a rectangular frame. For an oval or circular piece of fabric, several adjacent outer wires are spot-welded to the outermost crossing wires.
Patent GB-634286-A (GB)
Title: Improvements in the construction of fishing casts
IPC: A01K91/047
Filed: 1947-11-28
Abstract: 634,286. Fishing. HEDDERWICK, H. J. Nov. 28, 1947, No. 8493/48. Addition to 604,822. [Class 48] In a fishing cast the droppers D, Fig. 1, are attached b y means of a freehinge construction to tubular couplings C squeezed on to the line. Various constructions are desscribed, in some of which the coupling C is free on the cast and abuts a second coupling squeezed on to the cast to act merely as a stop. In Fig. 8 the dropper is fitted with a coupling T formed with a ring threaded on the cast and the fixed coupling C merely forms a stop.