baber/WOPTO huggingface dataset:
Patent GB-326522-A (GB)
Title: Improvements in and relating to inductance coils and frame aerials used in wireless reception
IPC: H01F21/12
Filed: 1928-10-16
Abstract: 326,522. Henschler, W. Oct. 16, 1928. Aerials; receiving-sets, construction of.-A frame aerial or inductance coil comprises two or more co-axial, polygonal, sections, the straight portions of any one section being arranged not to coincide or run parallel with the straight portions of any other section. When used in a portable receiver the frame aerial is adapted to rotate with its changeover switch, about a ball- and-socket joint into or out of the cabinet. The section starting at d, Fig. 1, continues over pegs e - - i and back to d. A second section runs from e over pegs p, g, q, i, r, and back to e, while a third starts at p and runs over f, b, h, r, d, and back to p. A change-over switch comprising a plate l and a rotary member m is adapted to connect the three sections in parallel or series as follows. Leads a and b from the first section are connected to contacts n and o, Fig. 3; leads a' and b' from the second section are connected to contacts n<1> .and o'; and leads a<11> and b<11> from the third section are connected to contacts n<11> and o". The rotary member m carries two spring sectors s<1>, s<2> adapted to cooperate with and connect in parallel' or series, contacts n - - n<11> and o - - o<11>. The aerial is mounted on a plate t and rod v ending in a ball u, which works in a socket and allows the aerial to be clipped into clips x or y in or out of the receiver cabinet.
Patent GB-849842-A (GB)
Title: Improvements in or relating to the purification of waste gases
IPC: C01B21/26
Filed: 1957-09-24
Abstract: Gases containing the oxides of nitrogen are purified by contact, together with a gaseous hydrocarbon fuel, with a rhodium or palladium containing catalyst at a temperature of at least 690 DEG F.  The process relates particularly to the removal of the oxides of nitrogen from the waste or tail gases from a plant for producing nitric acid by the oxidation of ammonia.  The catalysts may be 0.1-5% wt. rhodium, palladium, a mixture of rhodium and palladium, or a mixture of rhodium or palladium with Pt, Ru, Tr, or Os, supported on alumina, silica, kieselguhr, silica gel or diatomaceous earth in the form of pellets, granules or powder. The use of unsupported palladium or rhodium metal in the form of a gauze is also referred to.  In operation, waste or tail gases are heated to 690-780 DEG F. preferably 725 DEG F. (after attaining a steady state the temperature may be reduced to 700 DEG F.), and together with natural gas or methane, in a CH4:O2 ratio 0.55-0.7, are passed through a bed of catalyst or a metal gauze of catalyst metal, at a space velocity of 10,000-130,000 V/V/hr. preferably 60,000 - 110,000.  After passage through the catalyst, purified gases may be passed to a turbine or vented to the air and the heat generated during the catalytic process may be used to generate steam for power purposes.
Patent GB-896995-A (GB)
Title: A gear-changing device
IPC: F16H63/46
Filed: 1958-09-19
Abstract: 896,995. Change-speed control. ZAVODY 9., KVETNA, NARODNI PODNIK. Sept. 19, 1958 [March 25, 1958], No. 30041/58. Addition to 863,325. Class 80 (2). A change-speed control for a single-track vehicle of the type described in the parent Specification wherein operation of an executive lever 30 in the appropriate direction establishes the next succeeding ratio up or down, or alternatively any other pre-selected ratio, comprises shift-forks 18, 19 shifted axially by turning shift cams 2, 3 splined on a shaft 1, along which the shift cams are moved to selected axial positions by turning a cam selector-drum 9 formed as a part-cylinder rotatable on the shaft 1 and having cam slots engaging pins 6 on sleeves 5 freely mounted on the shaft 1 between end flanges of the shift cams, and prevented from rotation by a guide-slot 14. For pre-selective operation, a control, not shown, operates through a bell-crank 29, to shift upwards a shaft 25 splined to the executive lever 30, causing a tongue 24 on the shaft 25 to make a torsionally rigid connection with a slot 22 in the shaft 1, whereupon actuation of the executive lever in either direction turns the shaft 1 and shift cams 2, 3 directly to establish a shift which has been pro-selected by a control which turns the selector drum 9 through a cable 16. After the shift the lever 30, shaft and shift cams are returned by springs (not shown) to the initial position. For operation by establishment of the next succeeding ratio up or down without preselection, the control is operated at 29 to move the shaft 25 downwards, which causes its tongue 24 to engage with lost-motion a slot 23, Fig. 5, in the shaft 1 and also couples the shaft 25 by dogs 34 to a pawl carrier 31. Subsequent operation of the executive lever 30 in one or other direction first turns the pawl carrier 31 causing one or other of two oppositely-acting pawls 32, 33 to pass through a corresponding window 36 in a fixed mask 35 and step a ratchet segment 38 fast to the selector drum 9 through one step in the appropriate direction. Further movement of the executive lever 30 takes up the lost motion 23 and turns the shaft 1 and with it the shift cams 2, 3 for introducing the next succeeding ratio, after which the lever springs back to its initial position. The pawls during the further movement ride on to and slide over the mask 35. The movement of the selector drum 9 also actuates the preselector control 16 which indicates the ratio selected.
Patent GB-672749-A (GB)
Title: Improvements in and relating to vitrifiable enamels for use in the decoration of pottery
Inventor: WHITE NOEL WALTER
IPC: C03C4/02
Filed: 1949-11-23
Abstract: 672,749. Enamels. JOHNSON, MATTHEY & CO., Ltd. Nov. 15, 1950 [Nov. 23, 1949], No. 30046/49. Class 56. A vitrifiable enamel containing gold, for firing on to pottery including china, bone china, earthenware, and porcelain, includes from about 0.3 to 6.0 per cent of CeO 2  or, an equivalent amount of a compound containing cerium. Preferably from 0.5 to 3.0 per cent by weight of CeO 2  is used. The CeO 2  may be melted in or fritted with the flux constituents of the enamel, or ground with the fritted constituents and, if; desired, roasted. The colour and composition by weight of five examples are as follows : -(1) Medium pink, PbO 38.40, K 2 O 5.20, Na 2 O 10.60, B 2 O 3  15.60, SiO, 26.50, Au 0.25, Ag 0.20, SnO 2  1:75, CeO 2  1.50, (2) purple, PbO 57.30, B 2 O 3  13.50, SiO 2  19.00 Au 0.90, Ag 0.30, SnO 2  5.70, CeO 2  3.30, (3) pink, PbO 30.0, Na 2 O 8.3, K,O 1.8, B 2 O 3  9.2, Al 2 O 3  5.1, SiO 2  42.0, Au 0.13, Ag 0.02, SnO 2  1.1, CeO 2  2.4, (4) pale pink, PbO 31.0, Na 2 O 8.3, K 2 O 1.8. B 2 O 3  9.2, Al 2 O 3  5.2, SiO 2  43.2, Au 0.05, Ag 0.02, SnO 2  0.50, CeO 2  0.80, (5) strong purple, PbO 50.0, B 2 O 3  10.80, Al 2 O 3  7.50, SiO 2  21.70, Au 0.83, Ag 0.83 SnO 2  7.50, CeO 2  0.83. The enamels develop their true colour at temperatures sufficiently low (usually 680- 720‹ C.) to allow the simultaneous fixing of gold, and/or, platinum metallic decorations, will not exhibit a brown coloration when overprinted, and will fire to substantially the same colour whether applied thinly or thickly, and have an. improved temperature stability. The enamels may be applied by painting, spraying, dusting, silk-screen printing, or by the use of transfers.
Patent GB-171401-A (GB)
Title: Improvements in dynamo electric generators
IPC: H02K21/48
Filed: 1921-03-02
Abstract: 171,401. Neyret, J. March 3, 1920, [Convention date]. Magneto - electric machines.-A magneto in which the permanent magnet is utilized as the flywheel of an internalcombustion engine of the type described in Specification 159,830, and is in the form of an almost complete circle with polar projections has its armature, Fig. 2, formed with four coils arranged at the ends of two diameters intersecting at right - angles, the three coils 18 supplying the lighting current and the remaining coil 16 generating current for ignition. The Specification, as open to inspection under Sect. 91 (3) (a), comprises a 1 s o two modified armature constructions. F i g. 2 (Cancelled) shows an armature with winding 19, for ignition only, wound on the body, and in Fig. 4 (Cancelled) the armature has three polar projections 15, 16, 15', the central projection 16 carrying the ignition winding, the outer projections being joined together by a thin iron segment 17. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1083689-A (GB)
Title: Rolling contact gear
IPC: F16H55/08
Filed: 1966-07-05
Abstract: 1,083,689. Toothed gearing. MACK TRUCKS Inc. July 5, 1966 [Aug. 30, 1965], No. 30183/66. Heading F2Q. To maintain correct mesh during variations in centre distance-eg, due to loadbetween a pair of gear-wheels 10, 11 having non-conjugate helical teeth with circular arc profiles, concave on the gear 10 and convex on the gear 11, the gearing is so dimensioned that the respective centres of curvature CG, CP of concave and convex flanks 14, 17 contacting each other at a point 20 lie on a line extending through the contact point 20 and the pitch point PP, and are located on opposite sides of the pitch point at distances therefrom directly proportional to the numbers of teeth on the respective gears. As the centre distance changes and the line through the contact point and the pitch point moves round in consequence, the relative movement of the centres CP, CG and the pitch point PP keeps the centres substantially on said line. The outer ends of the concave tooth flanks are relieved at 18, 19 and the concave teeth are formed on the larger of the two gear-wheels.
Patent GB-1421971-A (GB)
Title: Phenyl acetic acid derivatives process for their preparation and applications thereof polyester catalysts
IPC: C07D307/83
Filed: 1973-06-26
Abstract: 1421971 Benzofuran derivatives SERDEXSOC D'ETUDES DE RECHERCHES DE DIFFUSION ET D'EXPLOITATION 13 June 1974 [26 June 1973] 30196/73 Heading C2C Novel compounds I  (in which R 1 =H or C 1-6  alkyl, R 2 =H, halogen, C 1-6  alkoxy or C 1-6  alkyl, R 3 =H, C 1-6  alkyl or aryl, and R 4 =H, halogen, CF 3 , OH, C 1-6  alkyl or C 1-6  alkoxy) and pharmalogically acceptable salts and esters thereof, are preprepared by reacting a compound II with a compound III in which R=C 1-6  alkyl and X=halogen, and saponifying the resulting ester to give the corresponding acid. Compounds III are obtained by halogenation of acetyl - phenyl - acetic acid derivatives IV: which are themselves prepared by a Friedel- Crafts reaction between the corresponding phenyl-acetic acid derivatives and acetyl chloride. Pharmaceutical compositions having analgesic and anti-inflammatory activity, for oral or rectal administration, comprise one of the above novel compounds together with a pharmaceutical carrier.
Patent GB-932460-A (GB)
Title: Improvements in or relating to the manufacture of sintered metallic bodies
Inventor: JACKSON KENNETH
IPC: C22C1/10
Filed: 1960-09-01
Abstract: A sintered copper or copper alloy body containing a dispersed refractory oxide such as MgO or BeO is formed from a powdered mixture of copper and/or copper oxide and/or a copper compound decomposable by heat to the oxide and a minor proportion, e.g. up to 2% of the refractory oxide, which mixture is heated in an oxidizing atmosphere to at least 900 DEG  C.; then the oxides formed are heated in a reducing atmosphere prior to compacting and sintering.  In the preferred method copper powder is mixed with an aqueous solution of a water-soluble salt which decomposes to the refractory oxide by heating, e.g. the nitrate, acetate, citrate or formate of magnesium, the slurry formed is dried, heated in an oxidizing atmosphere at 1000-1100 DEG  C., and the mixture of oxides is crushed to minus 200 mesh.  The powder is then heated in hydrogen at 300-350 DEG  C., compacted at 10-40 t.s.i. and finally sintered at 800-1050 DEG  C. in H2, N, argon or vacuum.  The sintered compact is rolled, swaged and annealed to form wire or it may be extruded.  The Provisional Specification also refers to the incorporation of the oxides of Ba, Ca and Sr as the refractory oxide phase.
Patent GB-1045503-A (GB)
Title: Control circuit for controllable rectifiers
IPC: H03K17/72
Filed: 1965-07-16
Abstract: 1,045,503. Automatic control of current and voltage. INTERNATIONAL STANDARD ELECTRIC CORPORATION. July 16, 1965 [July 17, 1964], No. 30314/65. Heading G3R. [Also in Divisions H2 and H3] A control circuit for two alternately conducting controlled rectifiers, such as thyristors G1, G2, comprises a transformer TR2 whose primary 1 is supplied from a D.C. source +U through the transistor T of an oscillator comprising transistor T and transformer Tr1 connected as shown. Resistor R determines the frequency of the oscillator, and this resistor may be a transistor controlled by some parameter of the main circuit including the thyristors.
Patent GB-705269-A (GB)
Title: Improvements in or relating to ironing machines
Inventor: BICKELL STANLEY FENELEY
IPC: D06F67/00
Filed: 1950-12-12
Abstract: 705,269. Ironing ; stands for hand-Irons. PARNALL (YATE), Ltd. Nov. 30, 1951 [Dec. 12, 1950], No. 30369/50. Class 138 (2) An ironing machine is provided with an electrically heated pressure member and with means for releasably attaching a flat-iron 7 in heat transferring relationship to the pressure member. In the example shown, the pressure member comprises a concave plate 1 adapted to co-operate with a rotatable roller (not shown) but the invention may be applied to pressing ironers of the non-rotatable type. A casing 6 on the member 1 has an opening 5 to receive the iron 7 which is held in contact with the flat face of a block 4 by means of inturned fingers 8 and stops 9. The pressure member 1 and the iron are heated by means of an element 2 embedded in insulation 3 and clamped in place by the block 4. In an alternative construction (not shown) the iron is shaped to correspond with the cross-section of the pressure member and its casing, which in this case may be saddle shaped, the flat-iron constituting a detachable end closure plate of the pressure member, and being retained in position by means of pins which register with corresponding holes in the sole of the flat-iron. A separate heating element for the iron may be provided in the pressure member. In a modification (not shown), the iron is heated by a radiant heating element instead of by conduction. According to the Provisional Specification, the flat iron may be pressed into contact with the block 4 by means of a leaf spring.
Patent GB-469532-A (GB)
Title: An acoustical arrangement for concert halls, broadcasting studios and the like
IPC: E04B1/82
Filed: 1936-11-07
Abstract: 469,532. Modifying acoustic properties of studios. OELSNER & CO., W. Nov. 7, 1936, No. 30388. Convention date, Nov. 7, 1935. Addition to 442,251. [Class 13] The invention relates tc an acoustical arrangement for concert halls, broadcasting studios or the like comprising boundary walls formed partly of soundabsorbing material and partly of sound - reflecting panelling, the latter extending from the floor to a level intermediate the floor and the ceiling and being separated from the building structure by sound-insulating material which prevents the penetration of structureborne sounds into the hall or studio. According to the present invention the sound - reflecting panelling is arranged in such a way that by moving one or more parts of the panelling up or down to a desired height, the reflecting surface above the floor of the hall or studio can be varied as required. As shown in the Figure, a fixed reflecting panel 3 is separated from the wall 1 lined with a layer 2 of sound-insulating and sound-absorbing material. The area of the reflecting surface above the floor is varied by a panel 4 movable up and down in the space between the panel 3 and the layer 2. In a modification, Fig. 2 (not shown), a number of reflecting panels are independently movable through openings in the floor, and the portions of the panels not in use are located in a recess below the floor. In a further modification, Fig. 3 (not shown), a number of panels are independently movable in guiding channels formed on the walls of the hall or studio.
Patent GB-396109-A (GB)
Title: A new or improved method of transmitting the drive and varying the gear ratios chiefly for use on motor vehicles
IPC: F16H61/02
Filed: 1931-11-03
Abstract: 396,109. Change - speed gearing ; friction clutches. ROSE, R. H., Red Roof, Penn Road, Penn, Wolverhampton. Nov. 3, 1931, No. 30402. [Class 80 (ii).] Change-speed gearing suitable for vehicles comprises aligned driving and driven shafts 1, 6, Fig. 1, a countershaft 4 constantly driven through a gear pair 2, 3, and change-gear friction clutches A, B, C operated hydraulically, as by oil. The clutch A effects a direct drive, the clutch B middle speed through train 2, 3, 7, 5, and the clutch C low speed through train 2, 3, 8, 9. The clutch C may be larger than the others. Each clutch comprises slidable cone members 42 adapted to be thrust apart into engagement with a loose double female cone 43 by pairs of oppositely arranged pistons 37 sliding in cylinders 40 formed in a block 50 secured to the shaft 4 or 6. Alternatively, the pistons may be annular. The annular cone members 42 are supported on projections 41 on the ends of the pistons 37. Springs 44 disengage the clutch when the cylinders 37 exhaust. Reversed drive is effected by connecting the separated gears 8, 9 by an idler 10, Fig. 2, which may be slid into position hydraulically. Oil drawn from a sump 12 by a pump 11 passes by a pipe 14 to a main control cylinder 13. Raising a lever 16 by hand or foot allows the oil to escape past a taper valve 17 through a pipe 18 to the sump, and so disconnects the drive at any time. Oil from the cylinder 13 passes by a pipe 19 past a main relief valve 20 and through a pipe 22 to a valve box 21. A pipe 36 leads from the box 21 to each of the clutches A, B, C. There are three valves 25 admitting oil to the three pipes 36 selectively, and three corresponding exhaust valves 30 connecting the pipes 36 to an exhaust pipe 48. Each pair of valves 25, 30 is operated by a rocking lever 32, and the three levers 32 are operated by a selective manual control cam shaft 26. Each lever 32 is biased by a spring 31 to hold its exhaust valve 30 open. In order to produce a residual oil pressure to effect lubrication, a low pressure relief valve 46 is arranged through which oil from the main relief valve 20 and from the clutch exhaustpipe 48 must pass before passing back to the sump by a pipe 47. A rotary distributing valve is described which may be used instead of the rocking lever selector.
Patent GB-227261-A (GB)
Title: An improved appliance for binding loose leaf sheets
IPC: B42F13/04
Filed: 1923-12-04
Abstract: 227,261. Cooper, F. A. Dec. 4, 1923. Flexible - band files; locks: covers.-In a loose leaf binder of the type in which the thongs 5 are secured at one end to one of the cover members 1, 2, and are connected at the other end with a revoluble rod 10, the latter is provided with a toothed wheel 14 normally engaged by a pawl 15 which is slid out of engagement therewith to allow the thongs to be loosened without the use of a key. The wheel 14 is provided with undercut teeth in which fits the bevelled edge of the pawl 15 and the latter is withdrawn from contact with the wheel against the action of a spring 16 by a lever 22, Fig. 4, pivoted to a plate 18 of a casing 17 and provided with a slot 21 which engages a pin 20 on the pawl 15. The thongs are connected to the rod 10 by means of a cross-bar 7 and tapes 12, the latter being wound on flattened portions of the rod 10 formed between bearings 9, and being secured in position by a clamping strip. The covers are hinged together by a sheet of flexible material 3 having ends sliding in recesses therein.
Patent GB-871042-A (GB)
Title: Aircraft instrument system
IPC: G01L7/00
Filed: 1957-09-30
Abstract: 871,042. Indicating-apparatus; pressuregauges. KOLLSMAN INSTRUMENT CORPORATION. Sept. 30, 1957 [Sept. 28, 1956], No. 30519/57. Classes 106 (2) and 106 (4). In the system described in Specification 869,886, the motor 74 positions the frame 47 in accordance with an instrument error correction, a static error correction or with the combination of the two. Fig. 2 shows a correction system in which an instrument error correction cam 77 is positioned by synchro-type servo-mechanism including motor 78, synchro generator 61, amplifier 79 and synchro 80, and a cam follower 81 varies the position of the stator of the instrument error synchro 82. A static error correction cam 92 is positioned longitudinally from an angle of attack synchro 84 and rotationally from a Mach synchro 85, and a cam follower 93 positions the shaft 94 of a differential synchro 95. The motor 72 is thus energized to position the frame 47 until the positions of the synchros 74, 82 and 95 satisfy one another. Fig. 5 (not shown) represents a system correcting for instrument error only. In each case, should the electrical power fail, the automatic return mechanism 73 will position the frame 47 in zero compensation position and allow the mechanical operation of the instrument to continue.
Patent GB-261552-A (GB)
Title: Improvements in and relating to electrical terminals
IPC: H01R11/24
Filed: 1925-12-03
Abstract: 261,552. Rottenburg, H. Dec. 3, 1925. Connectors. - A spring- clip connector having jaws B and a binding post E to which a wire is connected, is provided also with two projections F1, F2 that come together when the jaws B are opened and so form a pin for insertion in a socket to which connection is to be made. The projections may be semi-circular in form and are parallel to the pivot C.. The spring that closes the jaws tends to separate the projections F1, F2 and so gives a resilient contact with the socket. Grips G1, G2 are provided.
Patent GB-769092-A (GB)
Title: Machines for the production of chocolate tablets and small articles filled with cream and the like
IPC: A23G3/20
Filed: 1953-11-05
Abstract: 769,092. Moulding chocolates. SOC. ANON. MACCHINE INDUSTRIA DOLCIARIA CARLE & MONTANARI. Nov. 5, 1953 [Dec. 22, 1952], No. 30591/53. Class 87(2). In a machine for moulding cream-filled chocolates, having scraping blades which bear resiliently upon the upper faces of the moulds and move along said faces to remove excess chocolate from the moulds, two of the blades are so inclined relative to their direction of movement that they effect a convergence of the scraped chocolate towards the centre line of their path. Fig. 1 is a plan view of a machine having filled moulds 1 which move intermittently in the direction of the arrow X. Each mould stops at position Y, where two inclined scrapers 2, 3 carried by travelling chains 32 scrape the upper face of the mould. As shown, a third scraper 4, which is not inclined, also is carried by the chains. The scrapers may be flexible (e.g. of rubber or sheet metal) of may be rigid but backed by springs. The scraped-off chocolate falls down a shoot 5 into a receptacle. This shoot also may be flexible. The scrapers are cleaned by contact with edges on a plate 7, these edges being electrically heated to melt chocolate retained thereby so that the chocolate runs off them.