baber/WOPTO huggingface dataset:
Patent GB-672735-A (GB)
Title: Improvements in automatic control systems for aircraft
Inventor: MEREDITH FREDERICK WILLIAM
IPC: G05D1/06
Filed: 1949-09-07
Abstract: 672,735. Automatic flight control systems. SMITH & SONS (ENGLAND), Ltd., S. Sept. 7, 1950 [Sept. 7, 1949], No. 23187/49. Class 38 (iv). The flight of a craft is controlled by a first signal to produce approximately the path required, and a second signal dependent on the deviation from the required path. The " deviation " may be a linear one as in Fig. 1, or may be the variation of any quantity from a value which it would have on the required path, e.g. dz in Fig. 2 for exponential landing z+- = 0, on dt the required path (where z is the altitude). A first control signal 7, Fig. 1, is fed to an amplifier 1 to energize a servomotor 2 actuating the elevators 3 of a craft 4. Feed-back of elevator displacement and craft attitude may be provided. According to the invention a second control signal is fed back to the amplifier 1 from a radio-altimeter 5 through a device 6 which gives zero output when the craft is on the desired path. As applied to a flight control system such as that described in Specification 611,037, Fig. 2, wherein a platform 20 carries a rate-of-turn gyroscope 8, and a pitch altitude pendulum 9, which give signals to control an amplifier 10 energizing a servomotor 11 actuating the elevator 15 (12 is a feed-back tachoalternator), the control signal 7 is fed in series with a table displacement signal from 22 to amplifier 19 energizing a servomotor 18 to rock the table 20. The second control signal dz z+- from a radio-altimeter 23 and rate-ofdt change of height device 24 is fed in series with the signal from 7, or alternatively the table may be held level, and the signals from 7, 23 and 24 injected'into the circuit of the amplifier 10.
Patent GB-227886-A (GB)
Title: Grinding mechanism for the shear blades of tuft fabric looms
IPC: B24B3/42
Filed: 1923-09-17
Abstract: 227,886. Imray, O. Y., (Shawmut Engineering Co.). Sept. 17, 1923. Machine cutters, grinding in situ. -Apparatus for grinding the shear blades of tuft fabric or moquette looms, without removal of the blades from the loom, comprises a grinding-wheel 23 carried by a head angularly adjustable upon a carriage 9, supported and guided by rollers 69, 70 running on the blades 4, 5 which during sharpening are in the open position. The grinding-wheel is driven, through spiral gearing 12, 13 by an electric motor 18 mounted on the carriage, and the carriage is traversed to and fro across the loom by the engagement of a sprocketwheel 58 with a chain 59. The sprocket-wheel is rotated from the motor through bevel-gearing 55, 38, and its direction of rotation is reversed at the ends of a stroke by bevel-gearing 30 .. 32 and a sliding double clutch 39 actuated by a rod 42, the ends of which engage abutments 47 on the loom frame. The rod is held in either position by a spring- pressed tooth. The rollers 69, 70 are carried by arms 68 pivoted to the carriage and are pressed against the blades by springs 71. After treatment of one blade the other blade is ground by a grinding-wheel mounted on the other end of the shaft of the grinding-wheel 23. The apparatus may be driven, through a flexible shaft, from any external source of power.
Patent GB-293598-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B29/06
Filed: 1927-09-06
Abstract: 293,598. Armstrong, J. J. V., (Union Special Machine Co.). Sept. 6, 1927. Addition to 291,993. Presser-feet.-In a presserfoot according to the parent Specification in which fingers are provided to engage enchained loops, the fingers 21, 22 are bent upwards through openings in the pivoted foot 5 so that lips on the turnedup ends co-operate with the upper face of the foot in order to limit the downward movements of the fingers. The fingers are formed of a spring blade 17 split along the line 20, and secured to the heel of the presser-foot by a screw 18.
Patent GB-1387133-A (GB)
Title: Adhesive bond producing device
IPC: B65D35/32
Filed: 1972-05-18
Abstract: 1387133 Mixing in conduits A FISCHER 18 May 1972 [2 June 1971 4 Aug 1971] 23374/ 72 Heading B1C. A device for mixing and applying a resin adhesive having more than one component includes an expendable nozzle 1 with a plurality of inlet channels 3 a mixing zone 4 and a single outlet 5; the components are contained in reservoirs 6a, 6b consisting of collapsible tubes wrapped up by a common key 11. There may be baffles (not depicted) in the mixing zone to promote mixing and the cross-sections of the reservoirs may be proportional to the desired proportions of the components in the adhesive. The nozzle may have parallel inlets or be frusto conical, or cylindrical with one inlet in the end and another in the side (see Fig. 3, not shown). For Figures see next column
Patent GB-775886-A (GB)
Title: Improvements in or relating to steam traps
Inventor: FARRELL EDWARD
IPC: F16K31/24
Filed: 1954-08-12
Abstract: 775,886. Steam traps. ROYLES, Ltd. June 14, 1955 [Aug. 12, 1954], No. 23385/54. Class 64(2) [Also in Group XXIX] To give a greater opening movement and a snap closing movement of the outlet valve 17 of a steam trap, the arm 19 bearing the valve is pivoted on a link 18 which is pivoted at both ends. Steam and condensate enter the trap from an inlet 11 beind a baffle 13 and condensate overflowing into an open-topped float 20 tilts the float and the valve arm 19 bolted to its base to open the end of an outlet pipe 14 bearing a valve seat 16 to an extension from which the link 18 is pivoted. The float first tilts down about the pivot of the arm 19 and then the link 18 drops from the horizontal as shown in Fig. 4. Steam forces the condensate up the pipe 14 to an outlet 12 until condensate surrounding the float 20 raises it to close the valve 17 on its seat 16.
Patent GB-770059-A (GB)
Title: Process for printing textiles
IPC: D06P1/12
Filed: 1954-08-12
Abstract: In the azoic printing of cellulosic textiles wherein the material is padded with an alkaline solution of the coupling component and then printed with a thickened aqueous paste containing the diazo or stabilized diazo compound, the coupling component employed is 2 - hydroxy - 3 - naphthoic - 21:51 - dimethylanilide, which has low substantivity for the fibres and is therefore readily removed from the unprinted parts by washing with water or dilute alkali.  In an example, mercerised cotton sateen is padded with an aqueous solution of the coupling component containing also caustic soda and Turkey red oil at 80 DEG C., then dried and printed with an aqueous paste containing diazotized m - nitro - p - anisidine, sodium acetate and starch - tragacanth thickening.  The printed fabric is dried, treated with aqueous hydrochloric acid, then with hot water and hot aqueous caustic soda and finally rinsed, soaped and finished.
Patent GB-480704-A (GB)
Title: Improvements in or relating to synthetic moulding materials
IPC: C08K3/013
Filed: 1936-08-26
Abstract: Moulding-powders comprise fluorspar meal and sufficient synthetic resin to give a non-porous moulding.  Other fillers may also be present.  Suitable synthetic resins include phenol-, urea- and thiourea - aldehyde condensates.  In an example, a moulding powder comprises fluorspar meal, phenol-novalak resin, hexamethylenetetramine and dyes.  Specification 425,136, [Group V], is referred to.
Patent GB-406048-A (GB)
Title: A new or improved process for the surface coating of articles by dipping
IPC: C09D101/18
Filed: 1932-08-22
Abstract: In the process of coating articles by dipping them in a bath containing a film of coating liquid floated upon an underlying medium, different colouring effects and different thicknesses of coating film are obtained by varying the relative viscosities of the underlying medium and the coating liquid.  Suitable coating liquids are cellulose ester lacquers, oil varnishes and synthetic resin lacquers, and suitable underlying media are aqueous solutions of sodium silicate, glucose, isinglass, agar-agar or iceland moss, or gelatine liquefied by sodium salicylate.  A specified coating lacquer consists of toluol, xylol, methylated spirit, benzole, cyclohexanone, amyl acetate, cyclohexanol oxalate, nitro-cellulose cotton, and ester gum.  If the coating liquid has any affinity for or deleterious action upon the underlying medium, an interface layer of another liquid, e.g. a paraffinic oil of an intermediate specific gravity, may be interposed.
Patent GB-303733-A (GB)
Title: Improvements in handles for brushes
IPC: B25G3/12
Filed: 1928-10-17
Abstract: 303,733. Holman, A. J. Oct. 17, 1928. Fixing by screwed socket. - A brush-handle fastener is formed of square - section wire coiled on edge into a taper helix C, the end A being formed to grip the. flat end of the handle and the end B bent up and left free.
Patent GB-599333-A (GB)
Title: Improvements in footwear
IPC: A43B3/10
Filed: 1945-09-14
Abstract: 599,333. Boots and shoes. MALING, R. Sept. 14, 1945, No: 23809. Convention date, Dec. 8, 1944. [Class 17 (ii)] A shoe or slipper which has a moccasin construction of upper at the forepart and an overlasted construction at the heel is built around a combined platform and heel unit 14 which extends the full length of the sole. The unit 14 may include a full length platform, 16 and heel lift elements 18, 20 above and/or below it, or a solid wedge heel or cuban or other unitary heel may be secured below the platform, with shank stiffening means 22 on the shank. The elements 18, 20 may be,of matted fibre bound at those edge portions which may be visible. The upper comprises a bottom section 10 of leather or other flexible sheet material which underlies the platform andheel unit 14 throughout its forepart and at least a substantial portion of its rearp art, and a top forepart 12 of flexible sheet material. A sock lining 24 covers the stiffener 22 and the entire area of platform and heel and is preferably cemented to it. The edges of the parts 10, 12 are laced or stitched together. In a modification, the moccasin effect may be carried around the heel part of the shoe as well. In a further modification, the platform is of even thickness throughout, with a wedge heel superposed. A rearwardly extending strip from the bottom section of the upper may face the undersurface in the shank and also cover the heel breast.
Patent GB-373867-A (GB)
Title: Improvements in or relating to photo-electric cells
IPC: H01J40/06
Filed: 1931-08-25
Abstract: 373,867. Photo-electric cells. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Aug. 25, 1931, No. 23883. Convention date, Dec. 6, 1930. Addition to 343,930. Drawings to Specification. [Class 39 (i).] A photo-electric electrode consists of a photoelectric metal such as an alkali metal supported on a layer containing (a) particles of the metal, (b) particles of another conducting material such as silver, and (c) particles of an oxide of the photo-electric metal. Air is admitted to a cell containing a layer of silver on the inner surface and a discharge is passed between an electrode and the layer so as to oxidize the surface of the layer. The cell is evacuated, caesium in excess is admitted, and the cell heated to 200‹ C. so that silver oxide is reduced and caesium oxide formed. The cell is heated subsequently to 100‹ C. to cause caesium to penetrate into the mixture of silver and caesium oxide, and caesium is deposited on this layer. Excess caesium may be removed by a pump or by finely divided carbon, lead oxide or by the provision of a lead glass stem to the envelope. Barium may be used instead of caesium.
Patent GB-260731-A (GB)
Title: Improvements in or relating to electrical transformers
IPC: H01F19/02
Filed: 1925-09-24
Abstract: 260,731. Igranic Electric Co., Ltd., and Curtis, A. K. Sept. 24, 1925. Transformers with cores consisting of a number of wire loops 3, have their cores divided along a transverse plane cutting each loop twice. Each half of the core is embedded in a casing of moulded insulating material having a flange 4a through which the two halves are bolted together after the primary and secondary windings 1, 2 have been placed in position. The wire of the core may be of a nickel-iron alloy in which the proportions are 40 per cent nickel and 60 per cent iron.
Patent GB-278338-A (GB)
Title: Improvements in photographic objectives
IPC: G02B9/34
Filed: 1927-09-12
Abstract: 278,338. Zeiss, C., [Firm of]. Sept. 28, 1926, [Convention date]. Lenses. - Photographic objectives corrected spherically, chromatically astigmatically and for coma have each half consisting of a separate collective meniscus facing the diaphragm and a cemented doublet. Each half is so constructed that incident parallel rays coming from the side of the meniscus through a small diaphragm at the larger angles intersect each other in such a manner that the sagittal and tangential points of intersection of the rays follow each other with both halves in opposite sense. Numerical data are given in the Specification of such a lens having an aperture of F/4.5.
Patent GB-1285854-A (GB)
Title: Device for frosting drinking glasses
IPC: F25D31/00
Filed: 1971-04-19
Abstract: 1285854 Valves FROST-A-GLASS CORP 19 April 1971 [10 March 1970] 24052/71 Heading F2V [Also in Divisions B6 and F3-F4] A device for frosting a drinking glass comprises means whereby pushing downwardly an inverted glass 48 on a platform 46 moves the platform to open a valve 18 to allow a fluid refrigerant e.g. compressed carbon dioxide to flow through a pipe-line 40 and valve 18 into the glass. The upper surface of the platform has concave recesses 58 which co-operate with a shroud 56 surrounding the platform so as to circulate and retain refrigerant in the environment immediately surrounding the glass. Egress of gaseous refrigerant from the shroud is possible through ports 60 in the platform, and ports 62 in a base 12 of the device and the shroud has an upper opening for entry and exit of the glass. The valve 18 comprises a body 20 having an axially extending passageway 22 in which a pin 26 extends, the pin being urged by a compression spring 36 or a removable plug 32 against an upper seat 31 on a nozzle 30. A collar 34 on the lower end of the pin has radial arms 42 which project through openings 44 in the valve body 20 and which are engaged by slots 54 in the lower end of the platform so that the platform is supported thereby.
Patent GB-849216-A (GB)
Title: Improvements in and relating to fuel elements for nuclear reactors
Inventor: RITZ HUGO HEINRICH LUDOLF
IPC: G21C3/20
Filed: 1956-08-03
Abstract: 849,216. Nuclear reactors. PARSONS & CO. Ltd., C. A. July 12, 1957 [Aug. 3, 1956], No. 24072/56. Class 39(4). A fuel element for a nuclear reactor comprises a container for nuclear fuel housed in a graphite container having extended surfaces, e.g. finned surfaces. The nuclear fuel 1 may be provided with a beryllium sheath 2 surrounded by a graphite container 3 having fins 4 which may be helically disposed about the axis ; the passages between the fins may be interrupted by baffles 5 of graphite or metal which may make contact with the fuel channel of the reactor to locate the element. The graphite container 3 preferably extends axially at each end beyond the sheath 2 so that no load is borne by the fuel or the sheath. Specification 847,214 is referred to.
Patent GB-221648-A (GB)
Title: Improvements in and connected with needle points for mathematical instruments
IPC: B43L9/24
Filed: 1923-09-27
Abstract: 221,648. Thornton, Ltd., A. G., and Giles, W. H. Sept. 27, 1923. Compasses and dividers.-Consists of a needle point arrangement by which the needle can be adjusted rapidly through a considerable distance or adjusted through a very small distance, at will. The needle leg a is recessed to receive a split sheath c which is bored to form a guide for the needle g, the shank of which is screwthreaded. Also mounted in the sheath is a lever f, one extremity f<2> of which is toothed or serrated to engage the shank of the needle and is normally held in engagement therewith by a spring j. The other extremity f<1> of the lever projects from the sheath and is formed as a finger-piece. The sheath is also drilled to receive a screw d carrying a. nut e for clamping the needle in adjusted position; the screw may also serve as a fulcrum for the lever f. By depressing the end f<1> of the lever the needle is left free to slide in its mounting for rapid adjustment when the nut e is released. For fine adjustment the end f<1> is released and the needle, is turned, the end f<2> acting as a fixed nut to the threaded shank.
Patent GB-815209-A (GB)
Title: Improvements in delivery boxes for pneumatic conveyor devices
IPC: A24C5/39
Filed: 1957-07-30
Abstract: 815,209. Feeding tobacco. KORBER, K. July 30, 1957 [Sept. 10, 1956], No. 24100/57. Class 130. [Also in Group XXX] In a delivery box for a pneumatic feed system for tobacco &c. wherein the suction pipe 5 is horizontal and parallel to the feed pipe 6 and to the screen 2 between the suction chamber 3 and the supply chamber 4 and the two pipes are connected in mutually off-set manner to the opposed ends of the box in such manner that the lower surface part of the pipe 5, the upper surface part of the pipe 6 and the screen lie in closely adjacent planes, the suction chamber 3 and the screen are extended at 3a and 2a to a suitable extent in the region of the pipe 6 to ensure that the box is filled completely before the delivery flap 13 is actuated. A feeler 7, which is pivoted to the wall 10 of the box 1, moves counterclockwise as the box fills and moves the arm 11 to actuate the switch 12. A control valve 16 and a throttle valve 17, both of the butterfly type, are arranged in a part 3b of the chamber 3. Control surfaces 22, 23 secured at right angles to the valve 16 close auxiliary air openings in the bottom of the part 3b as the valve rotates. The valve spindle 18 carries a chain wheel 24 around which passes a chain 25. One end of the chain is connected to the core 26 of an electromagnet 27 and the other end is fixed to a tension spring anchored to the base 28. When the chamber is full, the feeler 7 actuates the switch 12 and the circuit of the magnet 27 is opened. The spring rotates the spindle 18 and the valve 16 takes up the position in which the pipe 5 is cut off from the box. At the same time the auxiliary air openings are opened to connect the box 1 and pipe 5 to atmosphere, the delivery flap 13 opens and material is discharged.
Patent GB-814074-A (GB)
Title: Catalysts, catalyst precursors therefor and the catalytic oxidation of organic compounds
IPC: C07C45/38
Filed: 1955-08-22
Abstract: An inactive catalyst precursor, suitable for conversion to an active catalyst for the oxidation of organic compounds, is prepared by depositing on a carbide or sintered iron oxide carrier an iron oxide-molybdenum oxide complex in the form of a partially hydrated ammonia-containing layer.  The carrier is preferably porous sintered silicon carbide of apparent specific gravity 2.4-2.9, but reference is also made to crystalline silicon carbide, crystalline tungsten carbide, and sintered iron carbide. The carrier may be contacted with a solution containing an iron salt and a molybdenum compound or with a slurry of iron oxide in a solution of molybdenum trioxide.  The iron salt is preferably ferric oxalate or ferric ammonium oxalate, but the citrate, ammonium citrate, nitrate and chloride are also suitable; ammonium molybdate is the preferred molybdenum compound.  A saturated aqueous solution of ferric molybdate-oxalate complex is especially suitable.  In another method, a solution of ammonium molybdate is added to a slurry of silicon carbide in a solution of ferric ammonium oxalate.  The impregnated carrier may be partially dried with agitation to a water content of 2-25 per cent, for example in a rotary tunnel drier.  Conversion to an active catalyst may be carried out in the converter to be used for the oxidation reaction by heating in a stream of air until water and ammonia have been removed. The catalyst is suitable for the oxidation of alcohols to aldehydes, glycols to dialdehydes, or glycollic acid to glyoxylic acid (see Group IV (b)). Specification 814,073 is referred to.ALSO:Organic compounds are oxidized in the presence of a catalyst formed from an inactive catalyst precursor which has been prepared by depositing on a carbide or sintered iron oxide carrier an iron oxide-molybdenum oxide complex in the form of a partially hydrated ammonia-containing layer (see Group III).  Alcohols are oxidized to aldehydes, glycols to dialdehydes and glycollic acid to glyoxylic acid.  A mixture of alcohol vapour and air, oxygen, or other oxidizing gas may be led through heated tubes containing the catalyst.  In the conversion of methanol to formaldehyde the weight per cent of methanol in the feed may be up to 16 per cent. Compared with the unsupported catalyst described in Specification 814,073, a lower maximum temperature is reached in the catalyst bed and a longer reaction zone is formed.  A suitable arrangement of apparatus for the oxidation is shown diagrammatically.
Patent GB-297958-A (GB)
Title: Improvements in mechanical apparatus for playing a race game
IPC: A63F9/14
Filed: 1927-09-14
Abstract: 297,958. Falconbridge, C. E. Sept. 14, 1927. Race games, mechanical.-In mechanical apparatus for playing a race game, variable friction driving-gear associated with each miniature racing figure comprises a driving disc having its periphery in contact with the face of a driven member and being adjustable by the player to and from the axis of the driven members in order to vary the ratio of the gear, and the face of the driven member is formed with depressions so disposed that an uninterrupted drive can only be obtained by correctly adjusting the position of the driving disc relatively to the axis of the driven member from time to time so as to miss the depressions. The track for the racing figures may be vertical, inclined or level and, in plan view, may be straight, curved or of circular form. In Fig. 1 is shown an inclined track A with one of the racing figures B and its operative mechanism; the remaining racing figures are similarly operated. The figure B is drawn up the track by means of cord G passing over pulleys H, G<1> to a winding drum J carried by an arm K<1>. The arm has a limited pivotal movement in an horizontal direction under spring action so as normally to maintain the face of the winding drum J against the edge of a continuouslyrotating wheel M, Fig. 2, driven by an electric motor. The position of the wheel M radially of the winding drum may be adjusted by the player through operative connections with a hand lever V, Fig. 1. In order to interrupt the progress of the figure along the track, the face of the winding drum is provided with one or more depressions N which interrupt the drive when opposite the driving wheel M. The player, by operating his handle B endeavours to move the wheel M so as to avoid these depressions, warning of their proximity being given by indications on the track, for example, by representations of rough ground or hurdles. When a racing figure arrives at the top of its track it operates a switch thus lighting a lamp Z to indicate the winner, and stopping the driving motor. The figures are simultaneously returned to the starting position, under the action of gravity, by withdrawing the winding drums J from their driving wheels by means of a bar S common to all the, pivoted arms K<1>.
Patent GB-1224446-A (GB)
Title: Optical glass
IPC: C03C3/072
Filed: 1969-05-12
Abstract: 1,224,446. Optical glass. NIPPON SHEET GLASS CO. Ltd. 12 May, 1969 [13 May, 1968], No. 24185/69. Heading C1M. An optical glass consists essentially of, in weight per cent, 35-75 PbO; 21-31 SiO 2 ; and 3-41 Tl 2 O. The glass has a refractive index of at least 1À75. The glass may be used as the core in an optical fibre, the core being coated with a glass of lower refractive index, preferably at least 0.25 lower.