baber/WOPTO huggingface dataset:
Patent GB-842802-A (GB)
Title: Water-soluble azo or anthraquinone dyestuffs containing methylol groups, a process for their production, and dyeings obtained therewith
Inventor: BRAUN WILLY
IPC: C09B43/00
Filed: 1958-05-16
Abstract: The invention comprises water-soluble dyes of formula:  [D-]-(CH2OH)n wherein D is an azo or anthraquinone dyestuff radical having at least one water-solubilising group and in which hydrogen atoms susceptible to reaction with formaldehyde have been replaced by methylol groups, and n is 1 to 8. They are prepared by reacting a suitable dye or intermediate with formaldehyde in a medium of pH 6 to 11 and if necessary converting the intermediate to an azo or anthraquinone dye. Specified water-solubilising groups are carboxylic and sulphonic acid or acid amide, ureido or sulphone groups.  The dyestuffs dye cellulose, wool, silk, leather and synthetic polyamide and polyurethane fibres, preferably in the presence of acids or acid salts, in red, brown, yellow and blue shades.  In examples: (1) the following dyes are reacted with formaldehyde in alkaline medium:-3-aminophenol --> 2-amino-5-naphthol-7-sulphonic acid, 1-amino- 4-(41-ureido-orcarbonamido - phenyl)- aminoanthraquinone- 2-sulphonic acid, sulphanilic acid --> 2-ureido-5-naphthol-7-sulphonic acid or 1-ureido-8-naphthol- 3 : 6 -disulphonic acid and sulphanilamide --> 2-ureido -5- naphthol -7- sulphonic acid; (2) the product obtained by reacting phenol with aqueous formaldehyde is coupled with the diazo compound from 1-amino -3 : 4- dichlorobenzene-5- sulphonic acid or anthranilic acid; (3) as in (2) the reaction product of formaldehyde and 3-hydroxyphenylurea is coupled with diazotised sulphanilamide; (4) the dyes sulphanilamide or 4-aminophenylurea --> 2 : 4-dimethylol-phenol are prepared.
Patent GB-1380692-A (GB)
Title: Production of sulphur trioxide sulphuric acid and oleum
IPC: C01B17/76
Filed: 1972-04-06
Abstract: 1380692 Manufacture of sulphuric acid CANADIAN INDUSTRIES Ltd 18 Oct 1972 [16 Nov 1971 6 April 1972] 53087/71 and 15902/72 Heading C1A Sulphuric acid is prepared by the catalytic conversion of gaseous sulphur dioxide to sulphur trioxide in the presence of dry air and under a pressure of at least 2 atmospheres gauge wherein the converted gas stream is fed under pressure to an absorbing unit through which essentially sulphur dioxide free sulphuric acid is circulated to absorb the sulphur trioxide and unconverted sulphur dioxide from the converted gas stream, the acid emerging from the absorbing unit being depressurized and the sulphur dioxide being stripped therefrom by means of an essentially sulphur dioxide free gas and the resulting essen tially sulphur dioxide free acid being cooled and at least a part thereof recirculated to the absorbing unit. Air may be used in the stripping operation and this may be used subsequently in the catalytic conversion stage as the source of dry air. The stripping may be conducted under super-atmospheric pressure and at a temperature higher than that of the absorbing stage. Part of the converted gas may be fed to an oleum unit, from which oleum may be recovered and distilled to produce SO 3 . The SO 2  in the sulphuric acid stream leaving the absorbing unit may be oxidized by injection of an oxidizing agent such as hydrogen peroxide or ozone.
Patent GB-769782-A (GB)
Title: Diverter protection system in current converters for high voltage direct current
IPC: H02M7/06
Filed: 1955-06-03
Abstract: 769,782. Converting. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. June 3, 1955 [June 11, 1954], No. 15919/55. Class 38 (2). A high voltage converting system provided with a diverter protection system is characterized in that the diverters on the direct current side of the system are non-self extinguishing and are so dimensioned that the igniting voltage of these diverters is higher than the over voltage which occurs during normal operation of the system and that their extinguishing voltage, is lower than the highest operating voltage of the system. A converting system comprises two Graetz connected valve systems 11, 12 connected in series to give a direct current output at the lines 24, 25 from an alternating current supply 17. Arc type diverters 27 ... 32 are connected between the phases of the secondary windings 13, 14 of the transformer 15 to give protection thereto. These diverters 27 ... 32 present no special problems since they will extinguish normally due to the zero voltage which will occur in the A.C. cycle. The diverter 33 across the reactance coil 26 will also be self-extinguishing because of a zero voltage condition which will exist thereacross. The diverters 34, 35, 36 arranged across the valve groups 11, 12 and across the D.C. lines 24, 25 respectively are dimensioned so as to be non self-extinguishing after having been ignited due to one or other of the valves in the groups 11, 12 being cut-off. By making these diverters non-self-extinguishing the insulation problems of the transformer 15 of the valves in the groups 11, 12 are considerably eased. In a further embodiment, Fig. 4, not shown, means are provided whereby certain of the main valves in the groups 11, 12 and the by-pass valves 22; 23 may be blocked or deblocked respectively when ignition of the diverters occurs, thus causing the diverter to be extinguished. Various other diverter arrangements are described wherein all the points in the circuit are connected to earth through diverters either at the A.C. side or at the D.C. side.
Patent GB-620153-A (GB)
Title: Improvements in or relating to the manufacture of synthetic resinous compositions
IPC: D06M15/41
Filed: 1946-05-27
Abstract: In the preparation of synthetic resinous moulding compositions yielding products of high impact strength and anti-frictional properties suitable for bearings or sealing washers, powdered metal is mixed with liquid phenolic resin to form a paste which is worked into macerated cloth under heat and pressure.  The macerated cloth is preferably impregnated with a thermosetting potentially reactive phenolic resin and is in a loose bulky form. Graphite particles may also be included in the composition.  The graphite may be mixed on rolls to a paste with liquid potentially reactive thermosetting phenolic resin, the metal powder then added and dispensed, and finally the macerated cloth is worked into the paste on before the graphite or two pastes can be formed the rolls.  If desired, the metal may be dispersed and mixed.  If desired, paste may be mixed with more resin and with cloth in a paddle mixer.  In the example, a liquid potentially reactive thermosetting phenolic resin is pasted on heated rolls with graphite and a powdered alloy of lead, antimony and tin added. Macerated cloth impregnated with thermosetting synthetic resin is added and after heating to remove solvents, the product is ground to a loose fibrous material which can be moulded to the desired shape.  Zinc stearate may be added as mould lubricant. Specification 480,530 is referred to.
Patent GB-624232-A (GB)
Title: Garden shears
IPC: A01G3/047
Filed: 1947-06-18
Abstract: 624,232. Clippers. WOOTTON, D. June 18, 1947, No. 16025. [Class 131] Garden shears comprises two serrated blades D of arcuate form carried by crossed members A, B pivoted at C. A screw E carried by a block F in B slides in a slot in the member A and is covered by a guard G.
Patent GB-128946-A (GB)
Title: Improvements in Boilers for Heating Purposes.
Inventor: MOREAU HENRY
IPC: F24H1/38
Filed: 1919-06-25
Abstract: 128,946. Moreau, H. Oct. 8, 1917, [Convention date]. Sectional boilers. - Flat sheet-iron sections 2 with autogenously welded edges and connexions at the holes 3, 4 are mounted in the rear compartment of a casing 1 lined with refractory slabs 7, 7<1>, 7<2> in the front part of which is the fire-box. Air can rise through holes 12 into the space between the casing and the slabs, and, thus heated, can pass through holes 13 into the fire space above the fuel. The air space can be preserved by ribs on the casing, or by packing with broken earthenware. The cast-iron base is divided by a partition into an ash-pit 8 and smoke-box 10, air inlets 14, 15 being provided for each, the control oil which may be interconnected.
Patent GB-549757-A (GB)
Title: Improvements in or relating to percussive rock drilling tools
IPC: E21B17/046
Filed: 1941-12-15
Abstract: 549,757. Percussive rock drilling tools. INGERSOLL-RAND CO. Dec. 15, 1941, No. 16167. Convention date, Dec. 21, 1940. [Class 124] In a percussive rock drilling tool in which a'cutter 22 is provided with one or more radial tangs 25 to extend into one or more slots 29 in a drill rod or holder 21, the end of each tang having an integral raised portion 31 to seat against the bottom of the slot for upsetting the end of the tang and forcing the sides of the tang into engagement with the sides of the slot when the tang is driven into the slot, a flat seating surface 26 is provided on the cutter to engage the flat end surface 27 of the holder 21 and so limit the degree of upsetting of the tang. The tangs may be of greater height than the depth of the slots, the raised portions 31 may comprise attenuated longitudinal extensions of the tangs, and the bottoms of the slots may have rounded corners 30. The raised portions 31 may be defined by concave or flat side surfaces 33, or by a convex end surface of the tang.
Patent GB-349770-A (GB)
Title: Improvements in permanent hair-waving apparatus
IPC: A45D4/10
Filed: 1930-05-26
Abstract: 349,770. Hair-waving appliances. LEMAIRE, R., 63, Wupperstrasse, Solingen, Germany. May 26, 1930, No. 16185. [Class 131.] A steam wave-fixing device for permanent hairwaving apparatus comprises a steam chamber b adapted to receive a curler a and provided with a steam distribution chamber l in the form of a double walled lid c, the inner wall h of the chamber l being provided with perforations k and the outer wall g being formed with an inlet e for steam which is supplied from an external source. The side walls i of the chamber l are recessed to receive a rubber packing d located between the chamber band the lid c, and the chamber is provided with a steam outlet pipe f.
Patent GB-273097-A (GB)
Title: Improvements in and relating to means for dispensing petrols
IPC: B67D7/38
Filed: 1926-06-28
Abstract: 273,097. Pollard, A. June 28, 1926. Multiple-way plug cocks. - A valve for enabling a petrol pump to supply liquid from seven tanks consists of a rotatable inner drum D and an outer casing A with seven inlets B, connected with each tank. Any one of these inlets B may be aligned with a radial passage E, whence the liquid passes to the central outlet H and away as desired. The drum is rotated by a handle and carries a pointer coacting with index marks on the periphery of the casing A. Reference has been directed by the Comptroller to Specification 159,922.
Patent GB-135798-A (GB)
Title: Detachable Flange Rim for the Wheels of Motor Vehicles Fitted with Pneumatic Tyres.
Inventor: JOHNSON LANCELOT
IPC: B60B25/20
Filed: 1919-06-28
Abstract: 135,798. Johnson, L., and Roberts, J. T. June 28, 1919. Tyre attachments to rims.-The detachable side flange C, adapted to be sprung into a groove B near the edge of the main portion A of the rim, is formed at its ends with lugs C<1>, C<2> which pass through a slot in bottom of the groove B. The lug C<1> is formed as a hook, and the lug C<2> as a filling-piece, the latter being locked by a transverse bolt D. A lip C<3> may be formed on the flange C for a prising-tool.
Patent GB-108256-A (GB)
Title: Improvements in and relating to the Fittings of Window Blinds and the like.
Inventor: POLLOCK JOHN
IPC: E06B9/50
Filed: 1916-11-15
Abstract: 108,256. Pollock, J. Nov. 15, 1916. Roller-blinds.-The support 16 at one end of a window blind is provided with an open-sided slot 15 to receive the roller end pin 14 and with a blade spring 20 to press against the disk 13 which may have a corrugated or roughened surface. The cap on the opposite end of the roller may consist of a disk 23 with countersunk attaching lugs 24.
Patent GB-626928-A (GB)
Title: Improvements in or relating to a method of making flour from cereal grains or legumes
IPC: B02C9/02
Filed: 1945-06-27
Abstract: In a method of making flour, cereal grains or legumes, containing initially at least the normal amount of moisture, are cut partly through and split without grinding or milling action while moving through the air, the walls of a substantial proportion of the oil-containing cells being preserved in unruptured condition by controlling temperature and cutting and splitting conditions so as to maintain the moisture content approximately constant.  A suitable machine for carrying out the process, as described in U.S.A. Specification 2,278,459, has a cylindrical drum which is rotated about a horizontal axis at a linear velocity of 800-1500 ft./min. to throw the material centrifugally against comminuting means comprising a horizontal shaft carrying a plurality of parallel discs with sharp peripheries within the drum.  The shaft is preferably rotated so that the linear velocity of the peripheral portion is greater than that of the drum, e.g. between 10,000 and 14,000 ft./min.  The operation is preferably carried out below 100 DEG  F. in order to maintain a moisture content sufficient to prevent rupture of the oil cells and consequent rancidity.  The comminuted product may be used to make straight or mixed animal feeds.ALSO:A food preparation is made by mixing in at any time during the comminution of cereal grain or legumes, (see Group I), milk powder, sugar, baking powder or soda.
Patent GB-668600-A (GB)
Title: Sewing machine lubrication
IPC: D05B71/00
Filed: 1950-06-30
Abstract: 668,600. Sewing-machines. SINGER MANUFACTURING CO. June 30, 1950 [Feb. 25, 1950], No. 16381/50. Class 112. [Also in Group XXXIV] Lubricating.-In a sewing-machine having a hollow head with a lubricant sump and a horizontal shaft running in a bearing bush at the junction of the head with the arm, excess lubricant is removed from the sump by a wick dipping into the sump and held in communication with a member on the shaft provided with means for feeding lubricant towards a recess in the bearing, whence it is led into the arm on the side of the bearing away from the head, to drain into a main reservoir in the frame; provision is made for easy renewal of the wick. Means are provided for lubricating the mechanism within the head. In the embodiment shown, oil fed to an axial bore in the needle-bar shaft 22 by a pump passes through a radial bore 37 to the surface of the bearing bush 21, along which it is carried back into the arm 15 by a helical groove in the shaft 22 ; oil leaking from the lefthand end of the bush 21 collects in an annular groove 43 therein and is discharged into the arm 15 through a passage 44. A second radial bore 46 communicates with bores in the crank-disc 23 and pin 24 to lubricate the bearing surfaces of the latter, and leakage from these surfaces lubricates the bearing surface of the needle-bar collar 27; any excess oil from these moving parts collects in a sump 53 in the bottom of the head 16, and is removed therefrom by a wick 54 which is held at its upper end in contact with a frustoconical extension 87 of the crank disc 23, formed with a spiral groove to fling oil into the recess 43. The wick 54 is held in place at its lower part by a member 56 projecting from the presser-bar bushing, and its upper end is doubled and lies horizontally in a holder 57 pivotally mounted on a plug 59 in the rear wall of the head 16 and spring urged to hold the wick against the part 87. In a second embodiment, Fig. 5 (not shown), the wick holder 57 is spring-hinged to the bearing bush 21, which is cut away to accommodate it, and the mechanism in the head 15 is lubricated by wicks carried in a tray and arranged so that one end of each rests in a well in the frame and the top of the bush 21, supplied with oil from the bore 39, and the other end hangs down to make contact with one of the moving parts. In a modification of this form, Fig. 12 (not shown), the upper end of the wick is not directly in contact with the part 87 but an oil conducting felt pad is interposed ; the wick holder is vertically slidable under spring action on a support which is fixed in the head 15 by a slot and screw, and the holder can be readily withdrawn from this support through a plugged aperture in the head. In a further form, Fig. 9 (not shown), the wick is in the form of a loop passing over the member 87 with both ends in the sump 53, being kept in place by a wire arm towards its upper part and pulled downwards by a pair of claws engaging its limbs and connected by a tension spring with a clip on the presser-bar bushing.
Patent GB-1039734-A (GB)
Title: Improvements in or relating to electrical apparatus
IPC: H01L23/467
Filed: 1963-04-26
Abstract: 1,039,734. Semi-conductor devices; mounting electrical equipment. SIEMENS-SCHUCKERTWERKE A.G. April 26, 1963 [April 26, 1962], No. 16460/63. Headings H1K and H1R. A plastics channel-shaped member carrying semi-conductor devices is connected by means which includes adhesive material to a further plastics channel-shaped member carrying others of the devices. In the embodiment channelshaped members 5 of polyester glass wool are disposed between partition plates 3 and 4 and connected thereto by adhesive material. The semi-conductor devices 6 which may be rectifiers or transistors of silicon or germanium are centred in apertures 52 in each channel base by aluminium cooling elements 7 mounted on the members 5. The assembly is completed by mounting the members 5 together with the plates 3 and 4 between insulating support bars 1 and 2 using adhesive material. An insulating cover-plate may be fixed to the front of plates 3 and 4 to define closed channels for the passage of cooling air. A fuse 8 is connected in series with each device 6, connections being completed by means of bus-bar 11 to fuses 8 and bus-bar 12 to cooling elements 7, each connected to a device 6.
Patent GB-594191-A (GB)
Title: Improvements connected with brakes
IPC: F16D65/22
Filed: 1945-07-28
Abstract: 594,191. Internal expanding brakes. HUNT, J. B. July 28, 1945, No. 16463. [Class 103 (i] Brake shoes 23 are expanded by toggles 24, 26 connected to both pairs of adjacent ends of the shoes and operated each by a hydraulic cylinder 33 with a plunger connected to the toggle joint 28, 29. The shoes are guided by fixed pins 20. According to the Provisional Specification the toggles may be operated by cranks or eccentrics, interconnected by linkage or the shoe ends may be separated by cams.
Patent GB-909726-A (GB)
Title: Numbers selecting chance apparatus
IPC: G07C15/00
Filed: 1960-05-10
Abstract: 909,726. Chance apparatus. BRAY, T. E. April 4, 1961 [May 10, 1960], No. 16539/60. Class 132 (2). Apparatus e.g. for forecasting results for football pools, comprises a tray a with transparent cover, the floor of the tray having indentations d in which loose steel balls b can come to rest after shaking. Vertical pins e cause deflections of balls during travel and transverse pins f may be inserted through holes in the sides of the tray in various positions to form a retaining area h for balls not required and at the same time place out of " play " some of the indentations d.
Patent GB-231367-A (GB)
Title: Processes of colouring and simultaneously waterproofing and impregnating material
IPC: D06M15/17
Filed: 1924-07-10
Abstract: 231,367. Germann, E. July 10, 1924. Coating-compositions applied melted.-A composition to be applied melted, for simultaneously waterproofing and colouring textile and other materials, comprises ceresine, stearic acid, paraffin wax, wax such as Japan wax, and fat, with the addition of mineral colour. The fat may be wool grease, which is united with aluminium acetate before being added to the remaining ingredients. The composition may also comprise tallow and resin.
Patent GB-543276-A (GB)
Title: A lamp fitting for use in flashlight photography
IPC: F21K5/08
Filed: 1940-11-18
Abstract: 543,276. Colour filters. BARRETT, A. Nov. 18, 1940, No. 16621. [Class 97 (i)] A flexible pouch embodying one or more light filters is adapted to be fitted over a flash bulb for flash light photography, to limit the radiation therefrom to desired wavelengths. As shown, the pouch comprises a panel 1 consisting of several layers of a dyed fibre, a similar second panel 2 differently dyed, and a rubberized cloth partition 5, which may be silvered, all bound together round three edges with leather 3. The fourth edges are reinforced, and are provided with a cord 4 or with press studs or a sliding clasp fastening, so that the pouch may be closed around the lamp 6 to exclude all unfiltered lights therefrom. One filter panel may be dark red for infra-red photography, and the other may be deep violet for use with panchromatic emulsion in daylight or at night ; the partition prevents emission through the unwanted panel.
Patent GB-568684-A (GB)
Title: Improvements relating to frequency-changers for superheterodyne radio receivers and the like
IPC: H03D7/10
Filed: 1943-10-11
Abstract: 568,684. Thermionic valves and circuits therefor. COSSOR, Ltd., A. C., and BELL, D. A. Oct. 11, 1943, No. 16624. [Classes 39 (i) and 40 (v)] In a frequency-changer having two output electrodes and a first control electrode system which controls the sum of the currents drawn by the output electrodes, and a second control electrode system which controls the distribution between the two output electrodes, the switch-over from one output electrode to the other occurs in a small fraction of the cycle. As applied to a triode-hexode valve, Fig. 4 (not shown), the output is taken between the hexode anode and screen grid, which latter is aligned with the first control grid and the local oscillator is modified to produce a substantially square wave-form by a resistance inserted. in series with the oscillator grid lead. Fig. 1 shows an arrangement in which the second control electrode 5 operates by beam deflection. In this arrangement, the signal is applied to controlling grid 2 and a focusing electrode 3 is provided before the accelerator grid 4 which is preferably aligned with the grid 2. The deflector electrode, 5 co-operates with anodes 7, 9 to form a local oscillator circuit, while the output is taken from the anodes 6, 8. Fig. 2 shows the valve construction, the anodes 7; 9 forming the local oscillator, being arranged over extensions of the electrodes 3, 5 so that the accelerator grid 4 and control grid 2 do not affect the oscillator section.
Patent GB-251470-A (GB)
Title: Improvements in apparatus for drying fabrics, paper and the like
IPC: D06C7/00
Filed: 1925-06-29
Abstract: 251,470. Lyth, J. J. June 29, 1925. Drying fabrics and materials in long lengths.-In a drier, tubes are arranged to provide narrow parallel passages through which in normal working the material passes in straight lines and out of contact with the tubes which are in staggered relation to provide wider tortuous passages permitting zigzag passage of locally thickened portions of the material which would not pass straight through the narrow passages. Headers 11 are provided with parallel butt-ended tubes 16 each header forming one unit with steam inlet and outlet 20, 21. Two such units are arranged so that the vertical tube rows interdigitate, leaving narrow passages between the tubes of the combined sections these being in staggered relationship. Lugs 26 are provided to support the free ends of the tubes, the lugs of adjacent headers forming cradles for the tubes. Rolls 23 lead the cloth between the drying tubes and owing to the staggered arrangement the moisture is enabled to escape and wider tortuous passages exist so that a thick seam can pass through the drier with comparatively little resistance. In a modification the tubes may be U-shaped.