baber/WOPTO huggingface dataset:
Patent GB-1089953-A (GB)
Title: Apparatus for measuring the circular dichroism of optically active substances
IPC: G01N21/19
Filed: 1965-01-28
Abstract: 1,089,953. Valve amplifying circuits. ROUSSEL-UCLAF. Jan. 28, 1965 [Feb. 6, 1964], No. 3854/65. Addition to 979,712. Heading H3W. [Also in Divisions G1 and G2] An amplifier A, Fig. 2 (not shown), for the output of a photomultiplier comprises two cathode-coupled pairs feeding a cathode follower the output of which is fed back to the input cathode coupled stage.
Patent GB-300055-A (GB)
Title: Improvements in or relating to devices for use in printing
IPC: B41L47/02
Filed: 1928-02-08
Abstract: 300,055. Hubbard, H. E. Feb. 8, 1928. Printing-surfaces. - A printing-device comprises a frame 10 constructed as a holder for one or more printing-plates 7 having the printing- characters formed by embossing, each plate being provided with corner projections 9 at one or both ends, and the frame with retaining-lips 12, 12<1> near its lateral edges adapted to engage the corner projections to prevent both endwise and lateral movement of the plates relative to the frame. The frame 10 may be fixed on the bed of a printing-machine, the lines of embossed characters on the plates 7 being so spaced relatively to the edge of the plates that the line spacing is the same throughout the combined plates : alternatively, a single plate 7 mounted in a holder may be employed in an addressing- machine. The edges of the frame 10 may be bent over to form flanges 11 on the back for clipping it on the bed of the machine, and gaps 11' may be provided in the flanges 11 to facilitate inserting an information card beneath the flanges. The lower pair of projections 9 on the bottom plate 7 of a series engage under corner lips 12<1>, the upper pair engage under lips 12, and a recess 8 between the projections 9 bears against a stop 13 the edge of which is in line with the inner edges of the lips 12, 12'. The top plate is held by stops 13, 14, and 15, and the intermediate plate or plates is retained in position by the end plates and by lips 12. The stop 14 may be replaced by a corner stop. Any plate may be inserted in the frame by placing the top left projection under the corresponding lip 12 while holding the plate in an inclined position and then sliding the plate down under the other lips.
Patent GB-1424781-A (GB)
Title: Conversion process for nitrogen-containing compounds
IPC: C01B21/02
Filed: 1973-01-26
Abstract: 1424781 Preparation of nitrogen and plutonium recovery GENERAL ELECTRIC CO 26 Jan 1973 [9 Feb 1972] 3988/73 Heading C1A Gaseous nitrogen is prepared by heating a liquid containing nitrate salts at 300-600‹ C. in the presence of ammonia, ammonium compounds or mixtures thereof. Preferably a molar excess of the ammonia and/or ammonium compounds are used and the nitrate is dispersed in water and heated in atomized form. Nitrogen may be prepared from liquid waste containing nitrate salts, e.g. plutonium nitrate by establishing a heated bed of inert particles, e.g. silicon dioxide, introducing the waste into the fluidized bed in atomized form and heating in the presence of ammonia and/or ammonium compounds at 300-600‹ C. In the apparatus of Fig. 1 fluidizing gas enters portion 11 of fluidizing apparatus 10, which can be heated by coil 30. Liquid waste nitrogen containing compound enters portion 11 in atomized form and the cationic portion deposits on the particulate medium of the fluidized bed. The larger particles may be withdrawn through outlet 35 and new particulate medium may be introduced from reservoir 34. Gas filters 32 in expanded portion 12 retain solid particles carried in gas leaving 12. In the apparatus of Fig. 2, fluidized bed apparatus 40 has portion 41 containing a fluidized bed and larger diameter portion 42. Portion 41 is heated by heating means 43. Ammonia and/or ammonium compounds from source 81 and waste nitrogen containing material from source 82 are introduced to tank 50 and then to fluidized bed portion 41. Particles which settle are removed through outlet 57 and new particular medium is introduced from reservoir 55. Gas filter 58 in expanded portion 42 remove particles from existing gas. Water from effluent gas condenses in condenser 60, collects in reservoir 61 and passes to neutralization tank 63. Plutonium solution from tank 62 is collected in tank 66 and distilled in column 65. Distillate collects in tank 70 which is connected to quarantine tank 72. Water free of plutonium contamination is discharged from tank 72. Condensed gas from tank 61 is fed to scrubber 74 where it is washed with water from tank 80. Scrubbed gas passes to the atmosphere via filter 77. Vapours from tank 70 are fed to the middle portion of scrubber 74. The process avoids release of metallic cation from the nitrate waste either in the aqueous discharge or the gaseous discharge. Fluidizing gas enters at 0À9 to 1À1 feet per second fluidizing velocity. The inert particles initially have a size range between 70 and 500 microns. Waste solution enters the fluidized bed in atomized form at 3 to 11 millilitres per minute. Particles reaching a size in the range 500-800 microns are withdrawn.
Patent GB-1417622-A (GB)
Title: Electric motor operated ice-crushing appliance
IPC: A23G9/08
Filed: 1973-02-09
Abstract: 1417622 Crushing apparatus SUNBEAM CORP 9 Feb 1973 4143/75 Divided out of 6473/73 Heading B2A [Also in Division A4] An ice-crusher 20 comprises a L-shaped plastics housing 22 containing an auger 38 to crush ice cubes 40, received via a chute 42 from double doors 152, 156, in a barrel 36 and deliver crushed ice at the upper end of the barrel through a discharge port 46 the auger being driven by an electric motor 166. A drive head 186 fits into a square recess 132 in the lower end of the auger 38 whose axis is at 20 to the vertical and, whose root diameter increases from its lower end, where a stainless steel spike 130 projects to aid initial ice engagement to the upper delivery end. The barrel 36 is generally cylindrical with its lower portion cut away adjacent a rear wall 54 of the appliance and its bore has a series of longitudinally extending serrated flutes 112 defining shoulders 116 facing in a direction opposite to the direction of rotation of auger 38. A spike plate is resiliently mounted in the barrel to reduce ice jams. To remove auger 38 for cleaning, a slidably-mounted, snap-lock cap 138 is removed and an auger head 126 is pulled. The two doors 152, 156 are each moulded flat with side-skirts 154, 158 respectively then folded to each form a U-shape, the adjacent side-skirts of the two doors being interconnected by pins 162 in slots 160 to open the doors simultaneously. Water drains from barrel 36 through hole 82 into recess 62. The motor 166 energised by a manual switch includes an impact clutch (Figs. 15, 16, not shown) and 100:1 reduction gears 178, 180, 182, 184 connect the vertical motor shaft 168 to drive head 186 which has the form of a pair of truncated pyramids with their bases adjacent each other and their sides at 22 to the vertical.
Patent GB-737693-A (GB)
Title: Improvements relating to jigs and fixtures
Inventor: WHARTON JOHN
IPC: B23Q1/01
Filed: 1953-02-13
Abstract: 737,693. Pipe joints. WHARTON & WILCOCKS,Ltd. Feb. 4, 1954 [Feb. 13, 1953], No. 4145/53. Class 99 (1). [Also in Group XXII] Two tubes are secured end-to-end by split-ring anchorages 90, 91 which are adjustable angularly relatively to one another and clamped by screws 92. The tubes, of octagonal section, are employed for building up jigs and fixtures (see Group XXII).
Patent GB-451513-A (GB)
Title: Improvements in or relating to the casting of rainwater, soil or like pipes or gutters, or sockets or fitments therefor
IPC: B22C9/24
Filed: 1935-02-11
Abstract: 451,513. Moulding processes. ALLENDER, J. J., and CALLANDER, M., Margaret Street, Ashton-under-Lyne. Feb. 11, 1935, No. 4278. [Class 83 (i)] Moulds; patterns.-A mould, for a rainwater or other pipe or gutter or a fitment therefore having integral cast ears, is made by ramming sand in a box y arranged over a bottom f which supports a pipe pattern e without ears. The whole is then inverted the part f removed, the sand face dusted with parting powder, a pattern i, Fig. 4, having the shape of the required ears but without perforations, and with a plate or flange i<1>, is placed on the pattern e and packed with sand at h<1>. A box k, Fig. 6, is then positioned and rammed, the sand over the pattern i is cut away, the pattern i replaced by a chill adapted to form the holes in the lugs and any desired recesses in the back of the ears and the mould completed by packing the box k, forming runners and replacing the pattern e by a core. If desired the pattern i and chill may be shaped to give thickened ears c, Fig. 11.
Patent GB-657021-A (GB)
Title: Improvements in and relating to nickel chromium steels
Inventor: OLIVER DONALD ARTHUR
IPC: C22C38/52
Filed: 1944-03-08
Abstract: The alloy steels set out in the parent Specification are subjected to a solution heat treatment at temperatures of 20-150 DEG C below their incipient melting points, preferably between 1200 DEG  and 1360 DEG C, and then cooled.  The alloy may be heated for 1-20 minutes, the length of time depending on the temperature used, e.g. at 1320 DEG C for three minutes, followed by cooling in air or quenching in oil. The treatment may be performed in an inert or reducing atmosphere preferably free from compounds of sulphur.
Patent GB-720719-A (GB)
Title: Apparatus for producing a stream of ionized air
IPC: A61M15/02
Filed: 1953-02-17
Abstract: 720,719. Ionization apparatus. QUINTON, A. Feb. 17, 1953, No. 4369/53. Class 98 (1). Apparatus for producing a stream of ionized air comprises a chamber 1 containing an air blower or fan 2 which discharges air through one end of the chamber, a second chamber 9 containing a radio-active substance and communicating with the air-discharge end of chamber 1, and an outlet 11 for the discharge of ionized air from chamber 9. The radio-active substance may be radiothallium 204 incorporated at a strength of .25 mc./sq. cm. in metal foil forming a lining 12 for the chamber 9. The apparatus may be trunnioned in forks 16 suspended from a ceiling. A cap 15 clips on the end of outlet 11 when the apparatus is not in use.
Patent GB-1208811-A (GB)
Title: Improvements in or relating to oscillators
Inventor: COPELAND JOHN ALEXANDER III
IPC: H03B9/14
Filed: 1968-01-29
Abstract: 1,208,811. Semi-conductor bulk effect diodes. WESTERN ELECTRIC CO. Inc. 29 Jan., 1968 [30 Jan., 1967], No. 4399/68. Addition to 1,190,984. Heading H1K. [Also in Division H3] An oscillator comprising a bulk (e.g. Gunn) effect device operating in the L.S.A. mode includes means for producing in the device an electric field alternating between positive and negative resistance regions of the device in such a way that the portion of each cycle in which the field is in the positive resistance region causes dissipation of any space charge accumulation. The device is connected to a load by means having a characteristic impedance which after a time delay of a few cycles falls from a 'value suitable for self-starting of the oscillations to a lower level represented by a transformed load impedance affording generation at higher efficiency. The device is preferably connected across an LC resonant circuit having a load impedance connected across it by a mismatched transmission line about 3# in length, so that the effective starting load is the impedance of the transmission line. In the Fig. 3 embodiment in which an N-type GaAs Gunn diode of specified thickness and doping is thermocompression bonded to copper stud 38 in rectangular waveguide 31, the resonant circuit is constituted by the self-capacitance of the diode and the inductance of conductor 34, while EH tuner 32 produces mismatch between waveguide 31 and the waveguide 35 communicating with the load. Initially the load is the impedance of waveguide 31 and in operation tuning plunger 36 and EH tuner 32 are adjusted to give the maximum output consistent with self-starting.
Patent GB-607912-A (GB)
Title: Improvements in jacks, actuators and the like of the ball-thrust, screw-and-nut type
IPC: B64C13/50
Filed: 1946-02-13
Abstract: 607,912. Screw-and-nut gearing. FLURSCHEIM, C. H., VANCE, W. G. C., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Feb. 13, 1946, No. 4492. [Class 80 (iii)] [Also in Group XXX] In screw-and-nut mechanisms of the ballthrust type, which may be used in jacks, actuators and the like for operating for example retractable undercarriages on aircraft, the balls are directed into or scraped out of the helical groove in the nut 6, Fig. 2, by fingers 10 on rings 11 which are held against the end faces of the nut by members 14, 15, Fig. 1. The fingers are integral with the rings 11 which are formed by machining from the solid and prevented from turning with respect to the nut by the engagement of keys 12 with slots 13. The return track 17 for the balls is formed on the exterior of the nut and connects extensions on the end faces of the helical groove.
Patent GB-964670-A (GB)
Title: Process for treating fibres and product thereof
Inventor: HERVEY LAURENCE ROBERT BASIL
IPC: E21D17/022
Filed: 1962-02-06
Abstract: Fibres are treated, to permit them to be formed into a product thereof from an aqueous slurry, by affixing to the surface of individual fibres in a substantially dry state, before forming the slurry, an essentially dry mucilage-producing material.  The mucilage-producing material is one which can be made to impart ropiness to water in low concentrations, and can be made to swell when the fibres on which it is deposited are dispersed in water, so producing a mucilaginous mass surrounding at least part of the surface of each fibre, and is preferably used in a finally-divided particulate.  Examples are a dehydrated product from okra pods, gum karaya and deacetylated gum karaya.  The fibres may be natural (cellulosic, cotton, linen, proteinaceous, wool or silk), synthetic (polyamide polyester, acrylonitrile polymer, cellulose derivative, regenerated cellulose, polyolefine, polyethylene, PTFE, vinyl polymers) or mineral (glass, asbestos, or aluminium silicate), and may be non-fibrillated.  Fibres of different kinds or lengths may be blended together.  The mucilage-producing material may be applied to the fibre surface simultaneously with or after a binder, or the fibres may be first treated with steam, and the binder eliminated. The binder, if used, must be a non-solvent for the mucilage-producing material, and preferably a liquid which is easily removed from the product by washing or evaporation.  Examples are triethylene glycol, glycerol, spindle oil, kerosene, oleic acid, octyl alcohol and mixtures of these. The treated fibres may be dispersed in water to form a slurry, which may then be sheeted out to form a web, or cast on a mould to form a shaped article, or used in hydraulic spinning. Fibres having a length greater than 3/8 inch may be treated and formed into a slurry, and fibres of paper-making length, which may be fibrillated, then added to the slurry.  A reactant for the mucilage-producing material, e.g. ammonia to deacetylate gum karaya, may be added to the slurry.  A resin binder may be added to the slurry or to the web after formation.  Examples are material and synthetic rubbers, aldehyde-condensation-resins, vinylpolymers and copolymers.  The products may be used as reinforcements for plastics, filters or one-use fabrics.  If thermoplastic fibres are used, they may be fused together by heat.
Patent GB-693169-A (GB)
Title: Improvements in and relating to electric circuit controllers comprising cam-operatedswitches
IPC: H01H19/62
Filed: 1950-02-23
Abstract: 693,169. Controllers. WEST & CO., Ltd., A., and MATTHEWS, J. M., [Representative of MATTHEWS, H. H.], March 30, 1951 [Feb. 23, 1950], No. 4669/50. Class 38 (iii) A controller comprises a shaft 1 with a plurality of cams 2 mounted thereon, together with a number of contact fingers 3 actuated by the respective cams and pivoted on a common axis 4. At their pivoted ends the fingers 3 are connected to fixed terminals 7 arranged in a row on one side of the cam-shaft, and at their other ends the fingers carry contacts 8 adapted to engage or disengage fixed contacts 9 arranged in a row on the other side of the cam-shaft. Insulation barriers 10 are placed between each set of contacts. All the contact fingers 3, fixed contacts 9, and insulation barriers 10 are removable as a unit from the remainder of the apparatus including the cam-shaft 1 and fixed terminals 7. The removable unit structure comprises a number of insulating spring blocks 11, 12, mounted between the insulation barriers 10. A leaf spring 13 is mounted on each block 11 and carries contact 14 for engaging isolating contact 15 which is connected to terminal 7. The detachable unit is provided with lugs which can be bolted to supporting posts fixed to the casing of the controller, the said lugs being integral with end-plates secured to two end insulation barriers 10 by bolts 18 and 19 passing through the spacing blocks. During removal of the detachable unit the contacts 14, 15, are disengaged. The cams, with spacers therebetween, are threaded on the shaft, which is partly of square crosssection, and are held in position by a spring concentric with the shaft. In a modification the controller has a plurality of detachable units arranged around cam-shaft 58 (Fig. 5). Each unit comprises a plurality of contact fingers 59, which are actuated by cams 60, and a number of insulation barriers 61 having insulating blocks 62 therebetween. As shown, the contact fingers are formed as bell crank levers pivoted on pins 64 and carrying bridging contacts 66: Springs 68 mounted on rods 67 bias the bridging contacts towards the spacing blocks. Contact rods 70 abut against fixed contacts 71, 72, and are biased by springs 73 away from contacts 66. Each detachable unit is secured by lugs 74 and nuts 76 on supporting posts 75, these posts being parallel to the corresponding rods 70. Disengagement of the detachable unit breaks the contact between members 70, 71, 72.
Patent GB-1373033-A (GB)
Title: Emulsions for textile treatments
IPC: D06M15/427
Filed: 1972-01-31
Abstract: 1373033 Creaseproofing textiles IMPERIAL CHEMICAL INDUSTRIES Ltd 31 Jan 1972 [16 Feb 1971] 4723/71 Heading DIP [Also in Division C3] An emulsion for imparting crease resistance to textiles comprises (a) 5-75wt% of a 25- 80wt% solution of a methylol derivative of a nitrogen-containing compound, or lower alkyl ether thereof, which gives a resin and/or reacts with cellulose under acid conditions, (b) 5-25 wt% of (a) of a block polyether E<SP>1</SP>PE<SP>2</SP> wherein P is a polyoxypropylene block of average molecular weight at least 2000 and E<SP>1</SP> and E<SP>2</SP> are polyoxyethylene blocks not totalling more than 25 wt% of the polyether, (c) up to 10 wt% of (a) of a fatty acid ester of sorbitan, provided (c) is not more than (b), and (d) at least 20wt% of a halogenated hydrocarbon. Suitable metrylol compounds are obtained from formaldehyde and urea, thiourea, dicyandiamide, amides, aminotriazines, urons, ureins, ureides, ethyleneureas, propyleneureas and triazinones, and may be in the form of C 1-3  alkyl ethers. Suitable solvents (d) are CHCl= CCl 2 , CCl 2 =CCl 2 , and CH 3 CCl 3 . A catalyst may be applied after the emulsion to a textile, or may be incorporated in the emulsion in amount 2-25 wt% of the methylol compound. In Example 1 1pbw sorbitan monoleate is mixed with 4 pbw of polyethylene polypropylene glycol (10% ethylene oxide units, MW 4440) in 10 pbw CCl 2 =CCl 2  and emulsified with 20 pbw of 50% aqueous dimethylol dihydroxyethyleneurea; the emulsion is diluted with more C 2 Cl 4  and a little water, a 15% emulsion of MgCl 2 . 6H 2 O is added, and cotton poplin is treated with the solution. In Example 2 an emulsion of Zn(NO 3 ) 2  . 6H 2 O is used as catalyst. In Example 3 a 50% solution of an MF resin is used as methylol component and the polyether is halved. In Example 4 the concentrations are varied. Cotton, linen rayon and polyester blends may be treated.
Patent GB-664192-A (GB)
Title: Improvements in and relating to navigational systems
IPC: G01S1/68
Filed: 1949-02-22
Abstract: 664,192. Navigational systems. STERN, W. L. Feb. 20, 1950 [Feb. 22, 1949], No. 4744/49. Class 40 (iii). A navigational system comprises a transmitter containing a radio-active element propagating radiation in selected directions and a detector carried by a craft responsive to this radiation. In the embodiment shown the radio-active material is mounted on a buoy 2 in a cylindrical shroud 4 of lead provided with openings 5 to allow radiation to pass in certain directions only. The shroud may be rotated or may be stationary and have a rotating mask, coaxial with and provided with apertures so that radiation passes in the directions in which the apertures coincide. The radio-active material may be carried on a container which opens automatically to expose the radio-active material when placed in position in the buoy. For example a cylindrical enclosure may slide over a projection in the buoy leaving the material supported on it. The receiver comprises a number of ionization chambers 6 connected in parallel across an high voltage supply. The chambers may be surrounded by a rotatable mask 9 to make the apparatus directional. The detecting member may carry out a scanning movement in synchronism with the beam of a cathode-ray indicator. The strength of the radiation received measured by conventional arrangements gives an indication of the range of the transmitter. In a modification a naphthalene crystal is arranged to fluoresce under the radio-active rays, a photo-cell responding to the flashes, the rate of flashing giving a measure of the transmitter distance. The transmitter may be movable, an arrangement being mentioned in which it is mounted near the top of a ship's anchor so as to be shrouded when the anchor is not in use or uncovered when it is lowered.-
Patent GB-278577-A (GB)
Title: Improvements in and relating to the steam distillation of coal and the like
IPC: C10K1/04
Filed: 1927-02-21
Abstract: 278,577. Synthetic Ammonia & Nitrates, Ltd., and Slade, R. E. Feb. 21, 1927. Coking and carbonizing processes.-In distilling coal &c. by means of superheated steam passed over or through the charge with or without additional external or internal heating means, the dirty steam from the retort is cooled only to a temperature well above its dew point by means of a scrubbing agent employed intensively in a packed tower so as to separate the oil without condensing steam. The residual steam is directly used as a source of heat for generating fresh clean steam at or above the working pressure, or the steam may be raised at a lower pressure and compressed preferably before superheating for use in the retort. If oil is used as scrubbing agent, the collected liquid which contains the primary tar and oils washed from the gas may be heated to distil the lighter portions, the heavier residue being employed as fresh scrubbing oil. The oils may be collected at different parts of the tower to secure a partial fractionation of the tar and oils. Specification 276,522 is referred to.