baber/WOPTO huggingface dataset:
Patent GB-349024-A (GB)
Title: Improvements in commutating arrangements for continuous current motors
IPC: H02K29/06
Filed: 1930-02-18
Abstract: 349,024. Motors. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Feb. 18, 1930, No. 5404. Convention date, March 1, 1929. [Class 35.] Machines with vapour and like rectifiers in place of commutators.-In a continuous current motor, the different feeding points of the polyphase armature winding are supplied through valves or arcs, an auxiliary alternating current being superposed on the commutating sectors of the winding during starting to bring the valve currents periodically to zero, and the armature current is led in at the star point of the polyphase winding. Fig. 1 shows a polygon winding a with zig-zag connected winding elements b. In order to use the winding more effectively and to suppress higher harmonics, a star connected winding may be divided into a number of parallel star windings d<1>, d<2>, Fig. 4, by the use of a, choking coil e. In Fig. 5, the stationary armature winding 1 is connected to the continuous-current mains through a rectifier 6 having a single cathode. The grids of the valve are controlled by a commutator switch 5 and battery 7. The shaft of the motor carries the field winding 2 and also a winding 3 placed in proximity to the commutating sector of the armature winding 1. At starting, alternating current is supplied to the winding 3 from the source 4 but when the motor is rotating at a sufficiently high speed, the voltage induced by the field winding 2 is large enough to constitute a commutating voltage, and the winding 3 is short-circuited, thereby serving to reduce the inductance of the commutating sector.
Patent GB-100282-A (GB)
Title: Improvements in or relating to Wireless Telegraphy and Telephony.
IPC: H04R13/02
Filed: 1916-04-13
Abstract: 100,282. Soc. Franþaise Radio-Electrique. March 1, 1915, [Convention date]. Addition to 100,281. Receivers.-The Specification as open to inspection under Sect. 91 (3) (a) describes a telephone receiver with a short-circuited coil as the movable member, and also refers to a receiver diaphragm made of a thin rectangular iron sheet supported by a stretched sheet of light substance. This subject-matter does not appear in the Specification as accepted.
Patent GB-851333-A (GB)
Title: Improvements in or relating to suction and/or expulsion dredgers
Inventor: DONKERS JACOBUS MARINUS
IPC: E02F9/06
Filed: 1959-02-17
Abstract: 851,333. Earth - excavating apparatus. VERSCHURE & CO.'S SCHEEPWERF EN MACHINENFABRIEK N. V. Feb. 17, 1959, No. 5563/59. Class 68(1). [Also in Group XXXIII] In a suction and/or expulsion dredger having a suction or expulsion tube comprising two ports 4, 6 elastically connected with each other (at 5), each port is suspended by a cable 8, 9 led over a pulley 11, 12 carried by the piston rod 13a of a single hydraulic jack. The cylinder 13 of the jack is filled with oil kept under pressure by compressed air in an air drum 15. From the pulleys 11, 12 the cables run to hoist drums 16, 17.
Patent GB-983535-A (GB)
Title: Improvements relating to nuclear reactor installations
Inventor: BARKER ALLAN
IPC: F01K3/18
Filed: 1963-02-11
Abstract: 983,535. Feedwater supply systems for steam boilers. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Feb. 7, 1964 [Feb. 11, 1963], No. 5576/63. Heading F4A. [Also in Division G6] A nuclear reactor installation comprises a heat-exchanger in which heat from the reactor heats a fluid normally supplied to the heatexchanger by a main feed pump but which is supplied in the event of any failure, e.g. an emergency shut down of the reactor, by a supplementary injector type pump so that the flow of fluid is maintained whenever the removal of heat from the reactor is necessary. As shown, the heat-exchanger comprises a boiler 16 generating steam which may be superheated and which is fed to a turbine 17. Feedwater is delivered to the boiler by an electrically driven pump 18 and an injector type pump 19 supplied with H.P. steam tapped directly from the main to the turbine through a pipe 20. The injector provides about 10% of the feedwater requirement and preferably operates continuously. The boiler is heated by heat removed from a fast type nuclear reactor 11, the core 12 of which is cooled by a low melting-point metal coolant, e.g. sodium or an alloy of sodium with potassium. The coolant is forced upwardly through a core by a pump 13 and through a primary heat exchanger 14 wherein the heat is transferred to a similar liquid metal coolant circulated in a secondary heat exchange circuit comprising the primary heat exchanger and the boiler. In an emergency shut down the primary and secondary coolant flows are maintained by natural convection. If the main feed pump 18 ceases running, the injector pump 19 maintains the feedwater supply to the boiler, the valve 21 in the steam main to the turbine being closed and steam being discharged either to the turbine condenser or to atmosphere.
Patent GB-386811-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B33/00
Filed: 1932-02-25
Abstract: 386,811. Refrigerating. ELECTROLUX, Ltd., 153, Regent Street, London.- (Assignees of Dablgren, S. A. B. ; 33, Hockebyvõgan, Alsten, Sweden.) Feb. 25, 1932, No. 5664. Convention date, Feb. 25, 1931. [Class 29.] The cool strong liquor from the absorber of a continuous-cycle inert gas system exchanges heat simultaneously with the hot weak liquor and the hot vapours expelled from the generator 1, the vapours being rectified thereby. The strong liquor flows through a jacket space 18 around the hot vapour pipe 5, the weak liquor being passed through a pipe 4 formed as a coil immersed in the strong liquor in the jacket. Condensed solvent collects in pools formed by baffles 12 in the conduit 5 and flows back to the generator through a series of pipes 13, the hot vapours being compelled to pass through the liquid. In the arrangement shown in Fig. 1, the jacket has a number of vent pipes 14 through which vapour expelled from strong solution may pass back to the generator, and liquor flows through a pipe 15 to the generator. In the arrangemeht shown in Fig. 2, an extension of the liquor heat exchanger is formed as a concentric tube coil 26 around the upper part of a tall generator, which it serves in part to insulate, and the expelled vapour rises through analyser plates 24 within the generator over which the entering strong liquor flows. Refrigerant condensed in the exchanger collects in an end chamber 21 and passes on to the main condenser. The generator may be surrounded by a jacket 27, Fig. 2, for products of combustion from a burner 23, and the apparatus may be air cooled. The invention may also be applied to reabsorption non-condensing systems. The Specification as open to inspection under Sect. 91 comprises also the application to systems in which the strong liquor is circulated by a pump under the control of a float. A diaphragm pump or a piston pump driven by electromagnetic pulsations may be used, and regulating valves in the condensate and liquor pipes may be sealed by diaphragms, to minimize leakage. This subject-matter does not appear in the Specification as accepted.
Patent GB-927032-A (GB)
Title: Improvements in or relating to irrigation units for cooling towers
IPC: F28F25/08
Filed: 1960-02-17
Abstract: 927,032. Packing units. FILM COOLING TOWERS (1925) Ltd., and E. A. A. HOWE. Feb. 17, 1961 [Feb. 17, 1960], No. 5665/60. Class 55 (2). The plates 3 of a packing unit for a cooling tower are held spaced apart by slotted strips 4 made of a flexible plastics material. The strips 4 may be arranged at the upper and lower edges of the packing units, as shown in Fig. 1, or as shown in Fig. 6 only at the upper edges, the lower edges of the sheets in this case engaging in notched beams 2 in the cooling tower. Large packing units may have a number of overlapping strips 4 as shown in Fig. 5. The plastics material may be a mixture of natural rubber, fibrous fillers and a synthetic rubber, e.g. oil-resistant neoprene. Strips of polyethylene, polystyrene or polyvinyl chloride may also be used. Specification 806,884 is referred to.
Patent GB-193875-A (GB)
Title: Improvements in apparatus for testing metal and other material
IPC: G01N3/48
Filed: 1923-02-27
Abstract: 193,875. Dahlqvist, C. E. Feb. 27, 1922, [Convention date]. Testing hardness of materials.-In apparatus having a spring-controlled rod with a ball or other shaped striking end for penetrating the material under test, the spring is adapted to be compressed to a greater or lesser extent so as to vary the force of the blow. The striking-rod 16 is mounted in a tubular casing 2 and is surrounded' by a spring 13 confined between a projection 17 on the rod and an attachment 7 adjustably mounted in the casing 2, the spring being held in grooves 12 therein by means of a screw 14 and washer 15. The attachment 7 has a portion of larger diameter which is divided into four sectors 9 by means of slots 8 in which are mounted conicalheaded screws 10 provided with non-rotatable nuts 11. In adjusting the apparatus, .the screws 10 are first loosened so that the attachment grips the rod 16 and the whole can be screwed up or down the casing 2, then the screws 10 are tightened so that the screw threads in the attachment lock with those on the casing and thus hold the attachment in the set 'position and free the rod 16 for movement. A lock-nut 4 is provided at the upper end of the rod 16. A retaining and releasing device 24 is pivoted at the side of the casing and is provided with ratchet teeth 21 and a check projection 22. The spring is compressed by means of a gauge 28, Fig. 3, which is adapted to engage the ball or pointed end 18 of the rod 16 the amount of insertion being limited by a stop inserted in one or other of the holes 26 corresponding to the ratchet teeth 21 of the device 24. The hardness may be calculated by the Brinnell method.
Patent GB-1530222-A (GB)
Title: Antifouling coating composition
IPC: C09D5/16
Filed: 1977-02-11
Abstract: 1530222 Organotin compounds CHUGOKU MARINE PAINTS Ltd 11 Feb 1977 5727/77 Heading C2J [Also in Divisions C3 and C4] Antifouling agents of the formula wherein R 1  is an alkyl group having from one to eight carbon atoms, an aryl group having from six to eight carbon atoms or a cycloalkyl group having from three to eight carbon atoms, R 2  is an alkylene group having from one to four carbon atoms, and each of X 1 , X 2 , X 3  and X 4  is hydrogen, bromine, chlorine, iodine or methyl radical, provided that at least one of X 1 , X 2 , X 3  and X 4  is bromine, chlorine or iodine are prepared by the reaction of organotin compounds of formula (R 1 ) 3 SnX 5  wherein R 1  is the same as defined above and X 5  is Cl, Br, I, OH and Y 2 O with appropriate organic carboxylic acids.
Patent GB-1300550-A (GB)
Title: Improvements relating to safes and similar security structures
Inventor: RADFORD ARTHUR STANLEY
IPC: E04B1/94
Filed: 1969-02-03
Abstract: 1300550 Safes CHUBB & SONS LOCK & SAFE CO Ltd 28 Jan 1970 [3 Feb 1969] 5728/ 69 Heading E1A A panel for making safes/strongrooms comprises a drill-resistant or punch-layer such as nuggets of hard material in a copper matrix and a backing layer of material adapted to resist the heat of a thermal lance. The backing layer may be in the form of blocks 12 of graphite, which fit into compartments defined by metallic spacing members 13. Steel plates 5, 8 and 14, 15 serve as encasing members for the two layers. A number of such double layer units may be combined to form a multilayer construction or alternatively the individual layers may be combined with layers of other material. Certain compounds of tantalum, titanium or zirconium may be used instead of graphite. For minor details such as size of nuggets, spacing of parts, thickness of copper matrix &c. the Specification should be referred to.
Patent GB-889990-A (GB)
Title: Improvements in or relating to ceramic dielectrics, processes for producing the same, and electric capacitors provided with such dielectrics
IPC: C04B35/468
Filed: 1958-02-21
Abstract: 889,990. Ceramic dielectrics. SIEMENS & HALSKE A.G. Feb. 21, 1958 [Feb. 21, 1957; Feb. 22, 1957], No. 5789/58. Drawings to Specification. Class 37. In a method of making a ceramic dielectric, a substance having a tetragonally or rhombically distorted Perovskite crystal structure, and which is in the ferro-electric state, is converted to an anti-ferro-electric state by incorporating into the ceramic an oxide of a metal which can form bivalent and trivalent oxides. The ferroelectric ceramic has the formula Me" Me<1v> O3 (Me<11>, Me<1v> being metals from Groups II and IV of the Periodic Table), and the metal whose oxide is added to this ceramic is from Group X (Me<x>), the total atomic proportion of the metals Me" and Me<x> not exceeding the atomic proportion of the metal Me<1v>. The metal Me<1v> is preferably titanium; Me" is preferably an alkaline earth metal such as calcium, strontium or barium; and Me<x> is preferably nickel. A mixture of barium carbonate, titanium oxide, nickel trioxide, and zirconium dioxide is heated at 1000‹ C. for about two hours; the resulting ceramic, having a distorted Perovskite structure and a composition of the form (Ba, Ni) (Ti, Zr)O3, is ground to a grain size below 2Á and pressed into the required shape to constitute a capacitor dielectric, using a hydrocarbon plasticizer. The dielectric slab so formed is sintered in an oxidizing atmosphere at 1320‹ C. for about ten minutes. Specifications 703,030 and 758,145 are referred to.
Patent GB-1044555-A (GB)
Title: Improvements in or relating to building structures
IPC: E04B2/74
Filed: 1964-02-12
Abstract: 1,044,555. Building structures. PACIFIC VEGETABLE OIL CORPORATION. Feb. 12, 1964 [Feb. 13, 1963], No. 5950/64. Heading E1V. Panels 10 located between webs 18 and flanges 13, 14 of pairs of I-beams 11, in contact with the flanges 13 and spaced from the webs 18 and the flanges 14, are secured in such position by a plastics foam material 23 which fills a space between the panels and inner surfaces of each I-beam 11 and a channel shaped cap 20 which covers the flanges 14 and contacts the panels. The plastics, which is pre-foamed, is introduced into the space through one or more openings in the cap 20. A cutting filament 25 embedded in the plastics foam material can be drawn across the edge faces of the panel 10 to release the panel so that it may be removed in the longitudinal direction of the I-beams in the event of dissembly of the building. The invention is applicable to walls, ceilings or roofs. The panels may comprise a core 12 of plastics foam material sandwiched between layers 15, 16 of sheet material such as aluminium, plywood or asbestos cement.
Patent GB-1202021-A (GB)
Title: Improvements in or relating to shopping bags
IPC: B65D33/02
Filed: 1969-02-04
Abstract: 1,202,021. Carrier bags. PAPPERSTEKNIK AB. 4 Feb., 1969 [9 Feb., 1968], No. 6010/69. Heading A4G. A carrier bag is formed of two layers 3, 2 of soft, heat sealable plastics foil sandwiched between which is a sheet of reinforcing Kraft paper extending across the bag bottom and up to opposite walls, the bag when opened up from a flattened condition having a square bottom formation 22 and plastics foil 3 extending either side of the paper 5 and folded to form end bag-sides 6, 7, with weld seams 11, 12. The foil 3 may extend above the top of the paper 5 and be secured folded over at 13. Two-layer, folded over hand hole members 14 may be welded at 15 to both sides of each wall 18.
Patent GB-111241-A (GB)
Title: Improvements in Carburretters for Internal Combustion Engines.
Inventor: FLETCHER LLEWELYN
IPC: F02M11/00
Filed: 1917-04-28
Abstract: 111,241. Fletcher, L. April 28, 1917. Spray carburettors.-In a carburettor having a number of nozzles controlled by valves, the valve of one nozzle, serving as a main nozzle, is connected rigidly to an air valve, the other or auxiliary nozzle valves being so connected to the air valve as to be opened in succession thereby, the fuel supply to the main nozzle being cut off when the auxiliary nozzles are brought into action. A casing a connected to the induction pipe at b encloses an air chamber c, and a fuel chamber d which is fed through a pipe 31 and through ports 7, 8, supplies a main nozzle o and concentric auxiliary nozzles p controlled by valves m, n respectively. The air chamber has ports e, f controlled by a sleeve i and valve g, the ports e supplying the main nozzle and the ports f the auxiliary nozzles with air. The valve g is connected directly to the main nozzle valve m and, through a cross-piece 3, spring-loaded sleeves w, and flanged nuts 4 of different lengths, to the valves n of the auxiliary nozzles. A notch v in the spindle of the valve m ensures first the supply and afterwards the cutting off of the fuel to the main nozzle o. The air chamber c is always in communication with the induction pipe b through conduits r and annular passage q. The air valve and fuel valves are actuated from the steering-column through a flexible cable, pulley 20, nut 15, and screw 9. The screw is prevented from rotating by the bent end of a lever 13 engaging a spline 12 therein. The nut 15 is loaded by a spiral spring 17 which is initially wound up to ensure a sufficient force to close the fuel valves, a pawl 19 and ratchet 18 being provided for this purpose. The screw, nut, spring, and pawl device is of the type described in Specification 13517/I5, [Class 12 (iii), Lubricators &c.].
Patent GB-608553-A (GB)
Title: Improvements in and relating to high-explosive shells fitted with self-destroying and impact fuzes
IPC: F42C15/16
Filed: 1946-02-26
Abstract: 608,553. Projectile fuzes. SCHWEIZER, P. Feb. 26, 1946, No. 6035. [Class 9 (i)] Shells for large calibre automatic guns have in addition to an inertia-operated base fuze and a self-destroying device which effects detonation of the base fuze if the shell fails to strike, a direct impact needle extending from the nose to the region of the base fuze. In the form shown, the explosive charge 17 is contained in a thin - walled casing 1, reinforced at the base by a body 2 containing a base fuze 6, tracer composition 18 and detonator casing 13. The base striker pin 5 is hinged at 8 to a spring-pressed slider retained by pin 4 and the tail 10 of the striker engages a fixed incline 11. The base fuze is armed by the rotation of the shell, the pin 4 being released by the opening of split ring 3 by centrifugal force. On impact, or for self destruction when centrifugal force lessens on failure of impact, the striker 5 disengages the incline 11 and strikes the detonator 14. For instantaneous detonation on impact, when the nose of the shell is crushed, the needle 16, attached to the nose and extending through the explosive charge, strikes the detonator 15 of the base fuze. The body 2 serves to reinforce the thin casing in the vicinity of the driving band 19.
Patent GB-843189-A (GB)
Title: Improvements in or relating to rotary indexing or dividing tables
Inventor: SAMUEL WALTER DANIEL
IPC: B23Q16/10
Filed: 1957-02-22
Abstract: 843,189. Indexing. CENTEC MACHINE TOOLS Ltd., [formerly CENTRAL TOOL & EQUIPMENT CO. Ltd.]. May 15, 1958 [Feb. 22, 1957], No. 6066/57. Class 83 (3). In an indexing mechanism for the table 14 of a machine tool, an axially movable member 30 holds the table stationary after each indexing operation. The table is rotatable on a hollow post 16 supported by a flange and nut arrangement 17, 19, from a plate 22 attached to the bed 11. An indexing sleeve 24 attached to the table has upper and lower clutch teeth 27, 28, for engagement respectively with teeth on the member 30 and on a driving ring 40. A steel diaphragm 32 is attached by screws 33 to member 30, and by a ring 34 to a bearing plate 13 on the bed, and springs 38 in the plate act downwardly on the diaphragm, tending to engage clutch teeth 27, 31, and disengage clutch teeth 28, 41. A spacing ring 43 with a needle bearing is arranged between sleeve 24 and ring 40, and a similar ring 44 between ring 40 and an annular piston 45, which is operated to shift the ring 40 and member 30 against the influence of springs 38. Instead of the springs 38, the diaphragm may be operated pneumatically, and the piston 45 may be replaced by spring means. Gear teeth 42 on the ring 40 are engaged by opposed racks 68, 69, operated respectively by pistons 62, 63, piston 63 indexing the table, and the piston 62 operating to return piston 63 while clutch teeth 28, 41 are disengaged. Operation.-Air is admitted to cylinder 46 to engage teeth 28, 41, and the building up of air pressure operates a valve (not shown) which supplies air to cylinder 61 and exhausts cylinder 60. At the end of an indexing step, the end of rack 69 engages a plunger 80 contacting a rocker 84 operating a control valve 53 which releases the pressure behind piston 45, permiting springs 38 to disengage the clutch teeth 28, 41. Piston 62 is then operated to return.the racks, until a dog 70 on rack 68 contacts an adjustable stop 71. The position of the stop, which is accessible through a slot 72 covered by a removable panel 74, determines the retracted position of rack 69, and thus the travel of the rack, and angle of rotation of the table.
Patent GB-872473-A (GB)
Title: Improvements in or relating to the removal of fine particles from gases or vapours and filters therefor
Inventor: FAIRS GEOFFREY LOWRIE
IPC: D21F1/66
Filed: 1958-02-25
Abstract: 872,473. Contacting a gas with a liquid. IMPERIAL CHEMICAL INDUSTRIES Ltd. Feb. 9, 1959 [Feb. 25, 1958], No. 6135/58. Addition to 827,214. Class 55 (2). The process for removing finely-divided particles from gases or vapours according to the parent Specification is improved in that the material deposited in the filter of " non- wettable " fibre is continuously removed by irrigating the filter with a liquid capable of physically dissolving, emulsifying or dispersing the material or of reacting chemically with it whereby it becomes dissolved, emulsified or dispersed. One form of apparatus for removing fine particles is shown in the drawing. A rubber-lined mild steel vessel 1 has a contaminated gas inlet 3 and a clean gas outlet 11 between which a preformed filter mat 9 is mounted on a grid support 8. Above the filter 9 is disposed a ring pipe 4 with four sprays 5 through which the irrigating liquid is sprayed on to the filter. Liquid draining from the filter discharges from the vessel through an outlet 10. The invention is of particular use in the removal of sulphuric acid mist from gases leaving the contact chamber in the manufacture of sulphuric acid and in the removal of sodium monoxide fume liberated from cells for the electrolysis of fused mixtures of sodium chloride and calcium chloride. In both these applications the filter is irrigated with water.
Patent GB-830150-A (GB)
Title: Animal carrying handbag
IPC: A01K1/02
Filed: 1957-02-25
Abstract: 830,150. Handbags. HAY, LADY M. D. May 27, 1958 [Feb. 25, 1957], No. 6184/57. Class 133. A handbag for carrying small animals, e.g. dogs comprises a relatively rigid base with end walls 3 and side walls 2 integral with each other and formed with windows 4 of transparent flexible material. A closure flap 6 attached to one side wall 2 is secured to the opposite wall by turnbuckles 7 and eyelets 8. Handles 9 and ventilators 10 are provided.