baber/WOPTO huggingface dataset:
Patent GB-429321-A (GB)
Title: Granular material for gas purification and method of making the same
IPC: C10K1/20
Filed: 1934-08-03
Abstract: A porous granular ferric oxide, adapted for use as a gas purification material, is obtained by mixing and sintering an iron-bearing material such as iron filings or borings, iron ore, pyritescinders, or aniline sludge with an alkali substance such as sodium or potassium carbonate, bicarbonate, or hydroxide to form an alkali ferrite in granular form, and leaching the cooled product with cold or hot water without destroying its granular nature.  The amount of alkali used, calculated as alkali oxide, is at least molecularly equivalent to the amount of iron, calculated as Fe2O3, and is preferably more than this.  The mixture is sintered at a temperature between 1650 and 1800 DEG  F., and alkali recovered from the leaching step is preferably re-used in the sintering step.  Leaching may be effected in a closed container with water heated by means of steam admitted under pressure.  British Specification 323,259, [Class 1 (iii)], and U.S.A. Specification 1,809,990 are referred to.
Patent GB-918957-A (GB)
Title: A process for coating zinc sulphide pigments
IPC: C09C1/06
Filed: 1960-06-28
Abstract: Zinc sulphide pigments, e.g. lithopone, are coated by suspending a zinc sulphide pigment in a solution of an inorganic compound containing polyvalent anions and flocculating this suspension with a solution of a mixture of an alkaline earth metal chloride, e.g. barium or calcium chloride and aluminium chloride. Specified inorganic compounds containing polyvalent anions are alkali metal silicates, e.g. water glass, alkali metal phosphates or alkali metal aluminates.  The coated pigment is washed, filtered and dried at 120 DEG -250 DEG C.  The coating process may be carried out intermittently or continuously.
Patent GB-809365-A (GB)
Title: Improvements in or relating to wave guides for the transmission of high-frequency polarised electromagnetic waves
Inventor: SMITH FREDERICK WARREN
IPC: H01P1/175
Filed: 1955-08-08
Abstract: 809,365. Waveguide accessories. MULLARD RADIO VALVE CO. Ltd. Aug. 8, 1955, No. 22866/55. Class 40 (8). The ellipticity of a wave propagated in a symmetrical waveguide is corrected by reactances arranged in a plane at 45 degrees to the major and minor axes of the ellipse. The electric vector of an elliptically-polarized wave may be resolved into two virtual components D, E selected to have equal amplitudes and arranged in space quadrature at 45 degrees to the axes of the ellipse. The vectors are separated in time by a phase angle Œ x related to the ellipticity. One or a pair of reactive phaseshifting elements P, P<SP>1</SP> are arranged to shift the phase of one or both the vectors D, E in the appropriate direction so as to reduce the phase difference x to zero. When x is zero the two vectors represent the virtual components of a plane wave polarized in the direction of the major axis of the ellipse. Positive or negative reactive effects may be achieved by the use of slots, conductive or dielectric septa or by deforming the waveguide walls to an elliptical or oval cross-section. A preferred form of reactance comprises an adjustable conductive rod 18 arranged to extend radially into the circular waveguide 1. A further rod 19 may be provided in a plane at right-angles to the first rod, although only one rod is necessary once the direction of rotation of the vector is known. As shown, the guide 1 forms part of a known type of gyromagnetic circulator having input and output iris transformers 2, 3 connected to rectangular guides whose major axes lie at 45 degrees to each other. Two further terminals 5, 6 in the form of side arms lie each in the plane of the major axis of the adjacent rectangular guide. The gyromagnetic element is in the form of a tapered ferrite rod 18 and is arranged in an axial magnetic field adjusted to give a Faraday effect rotation of 45 degrees. Elliplicity due to differential attenuation in the element of the two circularly-polarized components of a plane wave is corrected by the reactive rods 18 or 19 which may be placed on either side of the gyrator. The ferrite element 8 is supported by two diaphragms 9 of foamed polythene held within a metal tube 10. The tube 10 is axially compressed by turnbuckles 12 between shoulders on the two halves of the circular guide 1. Ports 13, 14, 15 in the guide walls and in the diaphragms 9 are provided for circulation of a coolant, e.g. compressed air, within the portion of the guide bounded by the dielectric discs 11. The invention may also be used in conjunction with non-reciprocal devices using gyromagnetic elements in a transverse field, of both the resonant and non-resonant types.
Patent GB-1172143-A (GB)
Title: Improvements in Armature Damping Devices
Inventor: SMITH JAMES DEREK
IPC: F16F6/00
Filed: 1967-05-17
Abstract: 1,172,143. Feeding record tapes. INTERNATIONAL COMPUTERS Ltd. 7 May, 1968 [17 May, 1967], No. 22921/67. Heading G5R. [Also in Divisions F2 and H1] The armature 5 of an electromagnet 9 is damped by attaching to it an arm 13 which is so connected to a block or blocks 14-17 of resilient material such as rubber as to deform them in shear when the armature moves about its pivot 7. The block or blocks may be bonded or, as shown, merely clamped to the arm 13 and fixed supports 18, 19. As shown the armature carries a pinch roller 2 which, when the electromagnet is energized, co-operates with a drive roller 3 to feed a tape 4, e.g. in a tape recorder. The invention is also applicable to the damping of electromagnetic relays.
Patent GB-404577-A (GB)
Title: Direction and the like indicating devices, particularly for use on road-vehicles
IPC: B60Q1/34
Filed: 1933-08-17
Abstract: 404,577. Road - traffic signals on vehicles. PARKES, J. H., 72, West Road, Shoeburyness, Essex. Aug. 17, 1933, No. 22984. [Class 118 (ii).] A manoeuvre indicator comprises a triangular casing, with or without rounded corners, which carries a stop signal indicator, turning indicators and the normal rear light. As illustrated in Figs. 1 and 2, the compartment 6 is illuminated to show a stop signal of the form indicated, the control being preferably connected to the brake pedal, the lamps in compartment 10 illuminate the arrow to give directiona signals and the lamp in compartment 9 is the normal rear lamp, an opening being provided at 17 to illuminate the number plate. When either of the lamps in compartment 10 is lit, almost all the arrow shaft is illuminated giving a relatively long direction arrow. Alternatively the compartment 10 may be divided by a partition 11 and the upper channel member 7 need not be provided, in which case the partition 11 could be carried up to join the partition 5. The translucent parts 14 and 15 of the cover are coloured red and the arrow 16 is coloured yellow. An alternative construction of indicator and casing is illustrated in Figs. 3 and 4.
Patent GB-597619-A (GB)
Title: Improvements in and relating to eyeglasses, or spectacles
IPC: G02C1/08
Filed: 1945-09-06
Abstract: 597,619. Spectacles &c. JAMESON, W., and JAMESON, Ltd., W. Sept. 6, 1945, No. 23038. [Class 97 (i)] In spectacles, pince-nez, or detachable frames therefor, each rim 1 has integral therewith lugs 2, 2a, and against one face of each lug 2a rests an upwardly extending end 5 of a bridge piece 3, a screw 4 passing through an aperture in the end 5 into the threaded bore of the lugs 2, 2a.
Patent GB-442657-A (GB)
Title: Improvements in or relating to metallic compositions for bearings, packings and the like
IPC: C22C1/00
Filed: 1935-08-16
Abstract: A metallic composition for use in bearings and/or packings consists of metals melted together with carbon added to the molten mass.  The metallic ingredients and their proportions consist of copper or silver 1-50, aluminium 1/2 -10, antimony 1-40, zinc 1-30, lead 1-80, and tin 1-80.  The metals in alloy or intimate mixture are graded according to their melting points. The metal with the highest melting point is melted first, and the others added in sequence in their decreasing order of melting points while slow cooling proceeds, each addition being preferably preceded by the addition of a part of the carbon content.  One composition has the following proportions by weight, copper 18, aluminium 1/2 , antimony 16, zinc 1 1/2 , lead 48, tin 16, graphite 1-2, blacklead 2-3.  Another composition comprises copper 20, antimony 10, zinc 2, lead 56, tin 12, soft carbons 3. The aluminium may, in some cases, be omitted.
Patent GB-887197-A (GB)
Title: Method and apparatus for the investigation of neutron propagating media
IPC: G21C7/34
Filed: 1958-07-18
Abstract: 887,197. Moderating neutrons. COMMISSARIAT A L'ENERGIE ATOMIQUE. July 18, 1958 [July 22, 1957], No. 23149/58. Class 39(4) Apparatus for investigating the neutron propagating characteristics of a medium comprises means for supporting a sample of the medium, neutron source means for irradiating the sample from a surface substantially completely surrounding the sample or for simulating irradiation from a surface substantially completely surrounding the sample, and means for detecting the resulting neutron flux at points within the sample. In the arrangement shown in Fig. 1 the medium 1 may comprise a cylindrical beryllium oxide-uranium lattice arranged between two guard sections 30, 31 on a fixed support. The guard section may comprise graphite-hydrogen-uranium lattices, the hydrogen being in the form of polyethylene tubes. The fixed structure is surrounded by a rotatable tower 4 driven by a motor 8. The tower carries two diametrically opposed neutron sources 12, 13 which are reciprocated up and down by a drive taken through a coupling and reversing arrangement from a gear 23 meshing with a rack 24. It is arranged that the sources move from top to bottom in 12.25 revolutions of the tower and then remain stationary for 3 revolutions; thus a complete cycle is half an integral number of revolutions and the sources 12, 13 exchange positions every cycle thereby ensuring perfect compensation for any minor inequalities between the sources. Each revolution may take 30 seconds, and a complete cycle of 30.5 revolutions thus takes about 15 minutes. The detectors may be rods of manganese or indium, the induced activity of which is measured to give the integrated flux. Each neutron source block, Fig. 7, comprises a sodium-beryllium source 40 surrounded by a bismuth shield 41 for screening the gamma rays and a cylindrical block 42 of uranium which also acts as a gamma ray shield and retards fast neutrons by inelastic collisions. In front of the source is a beryllium oxide stack 39 containing uranium rods 35-38 to act as a multiplier, and behind the source is a graphite reflector 43 and a layer of paraffin 44. Two sheets of cadmium 45, 46 line the side surfaces of the block to absorb thermal neutrons.
Patent GB-892256-A (GB)
Title: Improved device for illuminating an object
IPC: G03B21/20
Filed: 1960-07-04
Abstract: 892,256. Profile projectors. RUBELI, J. July 4, 1960 [July 6, 1959], No. 23319/60. Classes 97(1) and 98(1). A projector device for illuminating an object comprises means, including a lens, for photographing the object and means for projecting a luminous beam through the resulting negative and the said lens in order to illuminate the object. The apparatus shown comprises a housing 1, 2 which is ventilated through openings 1<SP>1</SP>, 12. Adjustably mounted on a base 9 in this housing are holders for a tube T on which a lens holder 15 is movably mounted, a heat filter 5 and a condenser lens 4. A lamp 5 is also provided and this, together with the filter 5 and lens 4, forms part of the projection system. For taking a photograph an apparatus 16 comprising a photosensitive plate and a reflex viewfinder is fitted on to the end of the tube T and the object is viewed through the window 14. The resultant silhouette negative is placed in a holder 19 which replaces the apparatus 16 and is rotatably mounted on the end of the tube. This image may then be projected so that the object is illuminated by following exactly the outline.
Patent GB-755172-A (GB)
Title: Improvements in paper cutters
IPC: B26B27/00
Filed: 1954-08-11
Abstract: 755,172. Paper cutters. TARRAZI, G. Aug. 11, 1954. No. 23320/54. Class 146(2) A paper cutter comprises a curved body with cutting means 38 secured in a bight in a recess therein, and shaping means 39 attached to the front of the body, closely overlying one end of the cutter means, and including two side surfaces extending toward the rest of the curved body and acting to form a loose fold in the sheet of paper when the latter is engaged between the side surfaces and the ends of the curved body to render that portion of the paper substantially rigid without tension. ing, so that the sheet is cleanly cut along the apex of the fold. The curved body comprises a handle 34, which may have an advertising or decorative surface, shaping means 39, a guide extremity 37, and the curved portion 35. The arms 41, 42 of the shaping means extend parallel to the plane of the cutter toward the extremity 37. Supports 43, 44 are provided at the ends of arms 41, 42.
Patent GB-501208-A (GB)
Title: Improvements in the separation of ammonia and hydrogen sulphide from gases
IPC: C10K1/08
Filed: 1937-08-25
Abstract: 501,208. Gas purifying materials; sulphur ; ammonium salts. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.) Aug. 25, 1937, No. 23339. Drawings to Specification. [Class 55 (ii)] [Also in Group III] Ammonia and hydrogen sulphide are removed 'from gases by scrubbing first with an ammonium sulphite - bisulphite solution, removing substantial amounts of hydrogen sulphide, then with an alkaline liquid containing heavy metal compounds forming sulphides which are afterwards regenerated by oxidizing gases; and finally with an ammonium sulphite-bisulphite solution, which is used for the first and final stages in either order and then added to the second stage liquid. Thiosulphate solution branched off from the cycle of the second stage liquid may be boiled to obtain sulphate and sulphur which may be used in preparing sulphur dioxide for making the sulphite-bisulphite solution ; or this may be derived from sulphur formed during the oxidation of the alkaline washing liquid, or from combustion of the hydrogen sulphide in waste gases from treatment of gas liquor. In an example, coke oven gas is first scrubbed with ammonium polysulphide to remove cyanogen and the ammonium thiocyanate formed may be caused to react with an excess of sulphuric, nitric, phosphoric, or hydrochloric acid, the said solution being added to concentrated thiosulphate solution from the second stage washer before boiling to obtain sulphate and sulphur. Or this solution may be acidified with sulphur dioxide and heated to 140‹ C. in a pressure-tight vessel:
Patent GB-299146-A (GB)
Title: Compressed air or steam turbine
IPC: F01D1/02
Filed: 1927-09-06
Abstract: 299,146. Stephens, W. Sept. 6, 1927. Inward-flow wheels. - A rotary compressor for use with a turbine comprises a number of scoops s which force the air into the hollow shaft. The exhaust from the turbine may be directed against the scoops s by nozzles n. The compressor discharges into tanks fitted with controlling valves.
Patent GB-702892-A (GB)
Title: Electric railway system
IPC: H01F30/14
Filed: 1952-09-18
Abstract: 702,892. Electric railway systems. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Sept. 18, 1952 [Feb. 14, 1952], No. 23431/52. Class 104 (3) In a'single phase electric railway system the overhead line 1 and the rails 2 are connected to two phases of a secondary winding 6 of a threephase transformer, a condenser 7 is connected between one of the two phases and the third phase and a reactance coil 8 is connected between the other of the two phases and the third phase. A power factor compensating condenser 9 is inserted between the two phases connected to the line 1 and rails 2. In an alternative arrangement a two phase secondary system is connected to the overhead line 1 and rail 2, the condenser 7 is connected in parallel to one of the windings of the secondary system and the coil 8 in parallel with the other winding and the power factor correcting condenser 9 is connected between the line 1 and rail 2.
Patent GB-709651-A (GB)
Title: Improvements in or relating to visual rear warning devices for cycles
Inventor: BLUEMEL FRANK WILLIAM
IPC: F21S8/10
Filed: 1951-10-09
Abstract: 709,651. Road-traffic signs. BLUEMEL BROS., Ltd. Oct. 8, 1952 [Oct. 9, 1951; March 21, 1952], Nos. 23437/51 and 7301/52. Class 3(2) [Also in Group XI] A warning device for cycles comprises a tubular body 10 closed at one end by an integral light-transmitting part 11 having a reflecting surface provided by integral light reflecting facets 13, on the inner face of the part, the body being provided at its opposite end with a seating portion shaped to conform to the convex curvature of the rear face of the mudguard on which the device is to be mounted so as to seat on that part of the mudguard which is indined to the vertical, with the reflecting face vertical or substantially vertical, and attachment means integral with the body and adapted to be secured to the mudguard by one or more screws 19 'or other fastening members, the tubular body including the light transmitting part with its associated facets and said attachment means being all formed as a one-piece moulding. The body 10 may be used with a member 16 which carries a lamp 21 to form a rear light. Both the member 16 and cover 10 are attached to the mudguard by the screws 19 which pass through the lugs on the part 10 and similar integral lugs on the part 16. The lamp 21 is carried by a spring coil 20 which acts as one terminal and another spring 25 engages the base contact of the lamp. When a reflector only is required the lamp is omitted.
Patent GB-596635-A (GB)
Title: Improvements in or relating to sliding-rule type calculators
IPC: G06G1/12
Filed: 1945-09-12
Abstract: 596,635. Calculators. TURNER, A. F., and SNODGRASS, B. Sept. 12, 1945, No. 23525. [Class 106 (i)] A calculator for computing income-tax comprises a slide a mounted in a stock b. The stock has a scale A of " unearned " income and a scale D of " earned " income, the divisions of the scale D being proportional to those of scale A according to the proportion of unearned income on which tax is payable. On the slide a is a scale B of taxable income readable directly against the scale A and a scale C of tax payable. The scale C of tax payable is divided into zones each proportioned in accordance with the rate of tax applicable in that zone. Scales B, C may be provided below their zeros with scales P, R representing premiums and rebates. A scale N gives P.A.Y.E. code numbers and scales T, S, X, W may be used to calculate monthly and weekly payments.
Patent GB-744971-A (GB)
Title: Improvements in or relating to the processing of copper wire or rod
Inventor: CLARKE GEORGE WILLIAM
IPC: C25D7/06
Filed: 1950-09-26
Abstract: 744,971. Electrodeposition of metal. STANDARD TELEPHONES & CABLES, Ltd. Sept. 21, 1951 [Sept. 26, 1950], No. 23558/50. Class 41. [Also in Group XXII] A copper wire is passed repeatedly through a cell for the electrodeposition of metal thereon and is drawn down to its original diameter after each passage; the wire is continuously annealed after the final passage or between successive passages. The annealing may be effected by passage of electric current through the wire. In the cell 1 shown in plan the wire enters as shown by an arrow, passing in a sinuous bath over electric contact pulleys 10 at the top of the cell and under wheels 14 at the bottom and returns along the opposite half of the cell to leave through the same end. Some of the pulleys 10 may be driven by power units 13. Anodes 6 are mounted as shown. To accommodate the additional length of wire produced by drawing, the capstan in the drawing unit 3 has a number of sections of different diameter, the pulleys 10 being similarly formed, so that the wire travels faster in successive passages. The wire passes through a wash tank 2 on emergence from the plating bath and through cleaning and washing tanks 4, 5 before re-entry. Specification 743,404 is referred to.
Patent GB-316590-A (GB)
Title: Improvements relating to severing annular vehicle wheel rims
IPC: B21D53/30
Filed: 1929-04-22
Abstract: 316,590. Goodyear Tire & Rubber Co., (Assignees of Woodward, A. TV.). May 15, 1928, [Convention date]. Divided on 311,729, [Class 144 (ii), Wheel tyres, Pneumatic &c.]. Hoops. - A profiled cut 27, 28, 29, 33 in a flanged rim for a vehicle wheel is effected by a moving cutter 40 which coacts with a stationary cutter 41, the edges of the cutters being correspondingly profiled.
Patent GB-203884-A (GB)
Title: Improvements in and relating to convertible seats
IPC: B60N2/34
Filed: 1922-08-30
Abstract: 203,884. Winslow, A. G., and Echols, W. P. Aug. 30, 1922. Seats, arrangement and disposition of; windscreens.-In a motor vehicle wherein the front and rear seats are adapted to be arranged to form a bed, the desired sliding movement of the seat parts to form a bed is permitted by the engagement of projections on the seat parts with grooves in the car body. Means are also provided for disengaging the projections from the grooves when it is desired to remove the seat parts. As shown in Fig. 3, the front seats 13 have projections 18 engaging grooves 19 in the side frames, and the rear parts 24, 26 have projections 27, 28 engaging the L-shaped slots 23, 22, so that a bed may be formed, as shown in Fig. 4, by moving the rear seat parts to a horizontal position, dropping the hinged back 14 of the front seat and sliding the part 13 rearwardly until the back 14 is supported on a projection 30 of the hinged leg 29, which is normally carried under the rear seat 24. The back 14 is normally held in its raised position by a bolt 16 engaging a slot 17. To permit removal of the rear seat parts, a detachable panel 30<1>, Fig. 4, may be provided, or grooves 36, Fig. 5, normally covered by hinged flaps 37, may be formed in the supporting frames. A foot or head-board 39, carried by a bracket 41, normally occupies the position shown in Fig. 4, but when the front seat is moved rearwardly, it is moved into active position by a spring 42. A foot rest 38, fitted with slots to receive the legs 29 to lock them in position, may be provided. A partition 32, fitted with a sliding screen 35, has pins 33 engaging grooves 34 in the car body, so that it may either take up the vertical position shown in Fig. 3, or be folded down on the vehicle floor, as shown in Fig. 4.