baber/WOPTO huggingface dataset:
Patent GB-467480-A (GB)
Title: Improvements in or relating to the treatment of textile materials
IPC: D06Q1/00
Filed: 1935-09-12
Abstract: Fabrics and other textile materials are delustred and/or weighted with an insoluble non-resinous condensation product in the form of finely divided particles obtained from urea or the like and formaldehyde, or from soluble partial condensates thereof, by the use of a precipitant before, during, or after impregnation.  The precipitant is preferably an acid or a potentially acid substance. Pattern effects may be produced by resist, discharge or direct printing.  The textile material may be treated with a solution of the condensation product, or its components, and subsequently treated with the precipitant, or the precipitant may be contained in the bath or in the fabric.  After precipitation, the acid is washed out.  In an example, urea and formaldehyde are mixed without heating, the textile material immersed therein, squeezed so that it contains its own weight of liquor, immersed in 2 per cent hydrochloric acid, or subjected to the action of acid vapour, washed in soap and oil and dried at not substantially above 100 DEG  C.  The treatment may be effected locally, and the patterned fabric dyed, or a dye incorporated in the resist.  Specifications 291,473 and 291,474, [both in Class 42 (i)], are referred to.
Patent GB-422694-A (GB)
Title: Improvements in oxide cathodes more particularly for gasfilled discharged tubes
IPC: H01J17/06
Filed: 1934-09-03
Abstract: 422,694. Thermionic cathodes. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Sept. 3, 1934, No. 25342. Convention date, Sept. 14, 1933. Drawings to Specification. [Class 39 (i)] An oxide cathode particularly for gas-filled tubes consists of a plurality of coated wire helices arranged one within another, at least one wire being traversed by the heating current. The helices are preferably arranged concentrically. In one form, two wires consisting of nickel wire wound on a tungsten core are helically coiled one within the other and are joined at one end to one lead-in. Separate leads are taken out at the other end so that either wire may be heated. The helices are insulated by their oxide coatings, or porcelain rods may be slipped between them.
Patent GB-193815-A (GB)
Title: Improvements in machines for printing designs in varnish on tin plates and the like
IPC: B41F5/02
Filed: 1922-09-19
Abstract: 193,815. Barnett, S. Feb. 23, 1922, [Convention date]. Pusher feeds for single sheets; sheet-registering devices; sheet-carriers; feed-tables.-A machine for applying designs in varnish to tin-plates comprises a feed-table 25 on which the plates are registered and advanced under spring-action when permitted by a cam 29 on the shaft of the main printing-roller 10. The plates are placed singly against the side register 26, Fig. 4, and end register 27, and rollers 46, driven by a chain from the printing-roller, assist in feeding the plate between the printing-roller 10 and an impression roller 9. The impression roller 9 is moved to operative position by a lever 39, or a pedal 3 with a weight attachment 3<a>, and a pawl 40. operated by a handle 41, engages a rack to hold the lever 39 in operative position. The table 25 can be held out of action by a lever and safety stop 36, when it is desired to stop the feed without stopping the machine.
Patent GB-419980-A (GB)
Title: Improvements in electric incandescent lamps, discharge tubes, and flash-light lamps
IPC: H01J7/44
Filed: 1933-09-14
Abstract: The Specification as open to inspection under Sect. 91 describes the use of an insulating lacquer consisting of alcohol, cresol, resin, and shellac solution, to which is added lead chromate and amylacetate.  This subject-matter does not appear in the Specification as accepted.
Patent GB-904630-A (GB)
Title: Improvements relating to air heaters for motor vehicles
IPC: B60H1/06
Filed: 1958-08-08
Abstract: 904,630. Ventilating. HARRISON, D. S. July 21, 1959 [Aug. 8, 1958], No. 25493/58. Class 137. Apparatus for supplying heated air to the interior of a motor vehicle having a radiator and fan in its water-cooling system comprises means for passing back air, induced through the radiator from front to back, to return said air to the front again by the action of the fan, and transfer means at the front of the radiator to pass said air to the back again through another area of the radiator. As shown, the system includes a radiator 11, header tank 12 and fan 13, the collecting means being an air scoop 17 having vertical blades 24, and the transfer means being a box 31. Air which has passed three times through the radiator, i.e. via scoop 17 and box 31, is drawn off through a distribution box 41 via a duct 43, to the vehicle cab, controlled by dampers 44 and 46, a duct 47 channelling hot air to the vehicle windows. In a modification, Figs. 7 to 9 (not shown), the distribution box is mounted above and in a single unit with the air scoop.
Patent GB-867605-A (GB)
Title: Improvements in or relating to transformers
IPC: H01F30/10
Filed: 1957-08-15
Abstract: 867,605. Transformers. TELEFUNKEN G.m.b.H. Aug. 15, 1957 [Aug. 17, 1956], No. 25727/57. Class 38 (2). A transformer comprises a winding 3 on a support 2 and a winding 7 on a support 12 which surrounds but does not touch the winding 3. As shown the support 2 has a flange 4 which supports directly the cylinder 12 and is provided with terminals 5 and insulating fins 10. In alternative arrangements, rods attached to the flange carry a ring-shaped support for the winding 7, or the cylinder 12 may have an inwardly directed flange which engages the support 2. A cap 8 of cast material is provided to minimize corona discharges.
Patent GB-535217-A (GB)
Title: Improvements in or relating to a.c. electric circuit-breakers having arc-control devices
IPC: H01H33/76
Filed: 1939-09-13
Abstract: 535,217. Fluid-blast switches. REYROLLE & CO., Ltd., A., ALLAN, A., and AMER, D. F. Sept. 13, 1939, No. 25754. [Class 38 (v)] The arcing-enclosure is formed by the space E between inner and outer hollow insulating structures A, B, the inner of which has a vent or vents B' past which the arc is drawn so that the blast flows into the inner structure, so enabling the outer structure A to be metallically reinforced without risk of reignition of the arc. A group of fixed contact fingers C<1>, C<2> are engaged by a lowerable tubular movable contact D closely surrounding the tube B, the contacts being arranged so that final separation occurs on the line of the vent or vents. The inner wall of the tube A extends close to the tube D except in the neighbourhood of the vents, where a space is left to form the enclosure E. In Fig. 2, a single vent is provided and the arc is kept short by a metal ring D<2> in continuous engagement with the tube D. The blast, in the case of an oil-switch, may be assisted by a piston F moved upwards by the opening contact-movement or downwards by being carried on the contact. The piston-arrangement may also be used in gasblast switches, or gas may be generated by the action of the arc on solids such as boron or fibre. The latter arrangement is shown in Fig. 4 in which gas-evolving linings A<3> B are placed on the inside of A and outside of B, the latter in this case being fixed to the tube D so as to move with it and uncover the vents B<2> in succession from the insulating extension G which is provided with metal packing G' for gas-cooling purposes. In Fig. 7, the operating-rod D' of contact D is extended at D<4> into structure B so preventing lowering of the pressure in enclosure E as the rod moves downwards, and producing a drop in pressure in structure B to facilitate the blast. By varying the diameter of the extension relative to the rod, these effects may be modified to increase the volume of the enclosure or to produce a definite pumping action. The tube D has a detachable arcing tip D<5> engaging arcing finger C<2> and is slotted on both sides of the tip D<5> so as to receive ribs B<4> on the tube B, which ribs prevent lateral wandering of the arc. In contrast to Fig. 2, the oil-level in this form is below the top of tube B. The Specification also describes a form of the invention appearing also in Specification 534,828 and employing a rotary movement of contact tube D and gas-evolving linings Specifications 435,308, 516,529, 516,530, 516,531, and 516,532 also are referred to
Patent GB-462905-A (GB)
Title: Improvements in or relating to file holders for index cards and the like
IPC: B42F17/02
Filed: 1935-09-17
Abstract: 462,905. Filing papers. MOORE'S MODERN METHODS, Ltd., and MOORE, B. Sept. 17, 1935, No. 25758. [Class 146 (i)] A file-holder for index cards and the like comprises a base member furnished with feet, preferably of rubber or other soft material, and two sides carried by the base member and provided with longitudinal projections or flanges adapted to rest and slide on horizontal projections in a cabinet. The base of the holder is formed by two transverse members A, A<1> carrying the feet A<2> and united by strips D which are bent up at one end to form an inclined front wall. The sides are formed of horizontal strips B, joining inclined strips B<1>, and are connected by the members A, A<1> and rods C, C<1>. The uppermost strip B is flanged at B<2> to slide between guides in a cabinet. A follower plate E is provided with a lug E<1>, pierced to run on a rod F, and has shoulders E<3> resting on the flanges B<2>. Alternatively, the sides of the file-holder may be made from perforated sheet metal.
Patent GB-796804-A (GB)
Title: Improvements in or relating to maps, charts and the like
IPC: G09B29/02
Filed: 1956-08-23
Abstract: 796,804. Maps, charts &c. HOFSHAGEN, O. Aug. 23, 1956 [Aug. 26, 1955], No. 25761/56. Class 146(2) A map. chart or the like comprises a number of sections 1, 2, 3 &c. mounted on separate sheets of rigid material, and on the back of each section is a similar map area 1'. 2<SP>1</SP>, 3<SP>1</SP>, which is displaced so that parts of the map which were on the edges or corners of one side appear in the centre on the reverse side. The reverse side may include a strip whereon the number of the map section may be printed, or in which holes for hanging the map section are provided.
Patent GB-889778-A (GB)
Title: Improvements relating to pulse generating circuits
Inventor: WALKER JAMES ARTHUR
IPC: H02M1/04
Filed: 1959-06-28
Abstract: 889,778. Valve and semi-conductor pulse circuits. FERRANTI Ltd. July 22, 1960 [July 28, 1959], No. 25786/59. Class 40(6). In a circuit for producing a pulse or train of pulses commencing at any desired part of each cycle of the alternating current supply A, a sawtooth oscillator is synchronized with the supply A and a second oscillator having a higher frequency is started when the combined value of the sawtooth waveform B and an adjustable direct current supply reaches a predetermined value. As shown in Fig. 1, waveform B is generated by charging capacitor 5 through resistor 3 until the voltage, when combined with the instantaneous voltage across diode 2 reaches the critical voltage of the silicon PNPN device 1, when capacitor 5 is discharged via devices 1, 2. When the voltage across capacitor 10, which is dependent on the sum of the adjustable voltage from the potentiometer 9 and the instantaneous value of waveform B, reaches the critical value of the PNPN device 7, capacitor 10 is discharged and executes higher frequency sawtooth oscillations until the end of the sawtooth stroke B. Waveforms C, D, E respectively show the effect of changing the voltage at the slider of potentiometer 9 from a low to a high value. The output may be fed via capacitor 14 to a controlled rectifier which is rendered conductive at the first cycle of the higher frequency sawtooth waveform. Gas discharge tubes may be used to replace the silicon devices 1, 7.
Patent GB-467488-A (GB)
Title: Improvements in variable pitch airscrews and the like
IPC: B64C11/34
Filed: 1935-09-17
Abstract: 467,488. Screw propellers. DELL, C., and READ, H. L. Sept. 17, 1935, Nos. 25798/35 and 12174/36. [Class 114] In screw propellers of the kind in which the hub is mounted for limited relative rotation and axial sliding on the draft for varying the pitch under varying thrust and torque, the hub assembly connecting the blades to the shaft provide that increases in thrust and /or torque reduce the pitch angle whilst decreases result in increased pitch. The boss 1 is mounted with limited relative rotation on a sleeve 3 which is splined to and has a limited sliding motion on the propeller shaft. The boss is also connected to the shaft by cam slots 6 engaging rollers 5 on studs 4 on the shaft. The sleeve 3 is formed with a bevel wheel 7 meshing with bevels 8 on the roots 9 of the blade. Sliding motion of the sleeve 3 is restrained by springs 12 and by liquid pressure acting on pistons 10. Pressure fluid under the control of the pilot is admitted by a central duct 13 past the valve 13 to the inlets 18. With a constant pilot valve setting the pressure depends upon the engine speed. The valve 15 may be omitted. In a modification, the pistons 10 act only as dashpots or may be omitted. A single annular piston mav be used in place of the two pistons 10. The cam slots may be formed in a flange connected to the hub through an intermediate ring which permits of a vernier setting relative to the hub.
Patent GB-161121-A (GB)
Title: Improved arch for destructor furnace with steam blast
IPC: F23M5/06
Filed: 1920-09-09
Abstract: 161,121. Williams, J. Sept. 9, 1920. Arches; linings.-The brickwork arch of a refuse destructor furnace, the sides of which are protected by boxplate castings, is protected from wear and injury by providing a hollow metal arch fitting under the brickwork and resting on the side castings. The sides of the grate are lined with box-plate castings c open at the bottom over recesses b<1> in the sides of the ash-pit, allowing part of the steam and air blast to enter the castings. A main casting f having internal ribs f<1>, f<2> rests on similar side castings h which in turn rest on the perforated upper surface of the bcx-castings c<1>. Pegs on the castings f, h fit in recesses in the castings h, c<1> respectively. Interchangeable segment plates n covering the casting f have flanges n<1> fitting ever the front and back edges thereof. Similar plates p cover the castings h and are fixed thereto by screws q entering bosses p<1>. The internal ribs divide the complete arch into compartments which communicate through holes s, so that air and steam from the casting c' can pass completely round the arch.
Patent GB-190821-A (GB)
Title: Improvements in mattress roll forming machines
IPC: D05B11/00
Filed: 1921-10-01
Abstract: 190,821. Droll, J. W., and Droll Patents Corporation. Oct. 1, 1921. Addition to 132,011. Sewing padded edges of mattresses, -In a mattress-roll forming machine of the kind described in the parent Specification the stitching mechanism is provided with guide-rollers engaging double tracks so arranged that while traversing the corners of the table the working centre of the machine (i.e. the plane midway between the packing-needles) retains the same position relative to the edge of the mattress as during the traversing of the sides. The machine is carried by castors 12 running on a track 14 and provided with guiderollers 21, 22 engaging lower and upper lateral flanges whtich constrain the castors to follow paths such that the line through their axes is always parallel to a tangent to the desired line on which the work is to be carried out and at the same distance therefrom. The upper roller 22, travelling in a counterclockwise direction continuing in a straight line to a point 53, Fig. 4, beyond the point where the curvature of the mattress edge begins and then travels in a circular path to a point 65 beyond the point where the curvature of the mattress edge ceases. The lower roller 21 commences to travel in a circular path at the point 56 before the curvature of the mattress begins and commences to travel in a straight path at a point 61 before the curvature of the mattress ceases. The working line of the machine which coincides with the edge of the mattress is indicated in Fig. 4 by the line 30, 31 and the beginning and ending of the curvature are defined by the section lines 6, 6 and 5, 5.
Patent GB-743992-A (GB)
Title: Improvements in the sampling and testing of molten steel
IPC: G01N33/20
Filed: 1952-10-17
Abstract: A method of taking a sample of molten steel comprises drawing a small quantity of the molten metal into a small bore refractory tube, quickly cooling the tube and the metal, breaking the tube to release the clean pencil of steel formed, drying, breaking, crushing, and sieving the metal, and subjecting the sieved powder to chemical analysis.  The metal may be drawn into the tube by creating a suction therein and the tube containing the metal may be quenched in water or oil fully to harden the metal and to break the tube.  The final crushing of the hardened steel may be performed by a pestle and mortar made from a similar steel, or of tungsten carbide or like hard material, or of steel having a very hard surface.  The powder passing a 40-mesh sieve is then subjected to chemical analysis.
Patent GB-1038279-A (GB)
Title: Diazonium compounds
IPC: G03C1/54
Filed: 1965-06-21
Abstract: The invention comprises compounds of formula <FORM:1038279/C2/1> wherein X is an anion, Y and Z are halogen, Ac is acyl, R is alkyl or -CH2CHR1-OAc, R1 is H or Me and n is 0-3. An example describes the preparation of the compound in which X is chlorozincate, Y is Cl, Z is 41-Cl, R1 is H, R is CH2CH2OAc and Ac is acetyl by reduction followed by diazotization of the corresponding nitro-precursor.  The latter is prepared by oxyethylating 2-(41-chlorophenoxy)-5-chloroaniline, making the bis-(2-acetoxyethyl) aniline, followed by nitration.
Patent GB-775779-A (GB)
Title: Impregnating carbon electrodes with drying oils and silver
IPC: C25B11/14
Filed: 1954-09-10
Abstract: Carbonaceous electrodes are first impregnated, preferably under vacuum, with a silver compound, e.g. silver nitrate or perchlorate, and a drying oil, e.g. linseed or oiticica oils, dissolved in an inert volatile organic liquid which is a mutual solvent for the oil and the silver compound, e.g. dimethyl formamide, benzonitrile, dimethyl acetamide and hexylene glycol and then heated at an elevated temperature: e.g. 150 DEG -175 DEG C. for 3-4 hours, to reduce the silver compound to silver and to volatilize the solvent, which may be recovered.  Diluents such as methyl ethyl and methyl isobutyl ketone, acetone and chloroform may be added to the impregnating solution. The silver compound is generally present in the solvent in an amount of 0.4-5 per cent by weight.
Patent GB-834702-A (GB)
Title: Improvements in or relating to roller-shutter constructions
Inventor: DOVER SIDNEY PERCY DONALD
IPC: B60J5/08
Filed: 1957-08-20
Abstract: 834,702. Sliding doors. DOVER ROLLER SHUTTERS Ltd. Nov. 20, 1958 [Aug. 20, 1957], No. 26241/57. Class 108(1) A sliding door comprises slats 1 hinged together at 6 and inset guide rollers 2 engage guides 7 on either side of the rear door opening and adjacent the roof interconnected by arcuate guides 9. A spring tensioned drum 12 mounted at the forward end of the vehicle counterbalances the weight of the door via tapes 14.
Patent GB-655407-A (GB)
Title: Improvements in or relating to electrostatic or electric gas cleaners
IPC: B03C3/60
Filed: 1947-09-29
Abstract: 655,407. Air filters. AMERICAN AIR FILTER CO., Inc. Sept. 29, 1947, No. 26254. Convention date, Oct. 18, 1946. '[Class 8(ii)] [Also in Group XL(a)] A gas filter is supported in a series of zig-zag panels between interfitting casing elements 19, 21. Each element 19, 21 comprises a rectangular base 24, with V-shaped members 22 extending from opposite sides, the opposed members being interconnected by struts 25, 31. The struts 31 are channelled and the V-shaped members 22 on element 19, are separated at their bases by channelled members. The edges of the filter panels fit into the channelled members and the channelled struts. The filter medium is composed of a plurality of superimposed layers, each layer comprising a matted network of short-fibered wood pulp. An electrostatic potential may be applied between the centre of each filter panel and its edges, and the assembly preceded by an ionizer. Several filter assemblies may be mounted in parallel.
Patent GB-229727-A (GB)
Title: Improvements in or relating to locking or securing devices for retaining in position adjustable elements in precision machines or apparatus
IPC: F16B1/00
Filed: 1923-10-23
Abstract: 229,727. Wickman, A. C. Oct. 23, 1923. Locking rotary elements by positive detents.- A device for locking adjustable elements in precision machines comprises a locking member e carried by two parallel resilient plates b, b<1> which are anchored at c, c<1> so that by pulling or pushing the handle h the locking bolt g may be withdrawn from a recess in the. element with which it is engaged. A restraining spring i is provided. Fig. 3 shows the application to a machine for gauging toothed gearing j as described in Specification 209,793, [Class 106 (ii), Dynamometers &c.]. Fig. 2 shows the application to a division plate a. The locking member e in this case has a central hole e<1> through which the spindle of the plate passes, and the locking bolt g is bent round to engage notches in the periphery of the plate.
Patent GB-162232-A (GB)
Title: Improvements in furnaces for melting glass
IPC: C03B5/04
Filed: 1920-09-16
Abstract: 162,232. Harvey Gas Furnace Co., Ltd., E. W., and Harvey, E. W. Sept. 16, 1920. Drawings to Specification. Glass furnaces.-In a gas-fired glass-melting furnace heated by one or more reversible flames, supplementary ports are provided near the gathering or tapping holes, through which a portion of the heating-gas is drawn, under the control of dampers, by a draught stronger than that serving the main ports. The supplementary ports may, for example, be connected directly with the chimney instead of through the regenerators. The invention is shown applied to tank furnaces heated by transverse and horse-shoe flames, and to circular and rectangular pot furnaces.
Patent GB-318468-A (GB)
Title: Improvements in the treatment of materials containing cellulose esters
IPC: D06M11/38
Filed: 1929-09-02
Abstract: 318,468. British Celanese, Ltd., (Assignees of Platt, H., and Dreyfus, C.). Sept. 1, 1928, [Convention date]. Addition to 316,521. Yarns, treating with liquids.-This process of the parent Specification for saponifying materials made of organic esters of cellulose, for example, cellulose acetate, formate, propionate, butyrate or mixed materials containing these esters, together with other fibres, for example, cotton, regenerated cellulose or natural silk, is modified in that the saponifying agent is applied in other than paste form, for example, in solution, and the material is thereafter immediately dried under the influence of heat, for example, by passing the materials round rotated heated drums or cans or by treatment in a heated atmosphere. The saponifying agent is preferably applied by means of a padding mangle. As saponifying agents there may be employed sodium or potassium hydroxide, carbonate, silicate or sulphide and to the solutions there may be added any suitable thickening agents, for example, gum arabic, gum tragacanth or British gum. They may be ironed or calandered at higher temperatures and wetted out more easily than the untreated materials and may be dyed very easily without creases, for example, in a winch machine. The materials may be coloured as described in the parent Specification. After treatment, the materials should be washed thoroughly to remove any excess of saponifying agent or products of saponification.