baber/WOPTO huggingface dataset:
Patent GB-1452145-A (GB)
Title: Process for the preparation of catalysts for use in the manufacture of ethylene oxide
IPC: C07D301/10
Filed: 1973-12-13
Abstract: 1452145 Epoxidation catalysts SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 13 Dec 1973 [15 Dec 1972] 57808/73 Heading B1E [Also in Division C2] Catalysts comprising silver on a carrier are prepared by impregnating the carrier with an aqueous solution comprising hexamethylenetetramine and silver ions bound to 1, 2-diaminoethane and heating the impregnated carrier at a temperature at which silver is formed. The heating may be at 50-100C and be followed by heating at 125-400C to fix the silver on the carrier which may contain SiO 2  and/or Al 2 O 3  The impregnating solution may also contain an alkali metal compound.
Patent GB-1458040-A (GB)
Title: Electromagnetically operated switching device
IPC: H01H50/02
Filed: 1973-12-13
Abstract: 1458040 Time delay relay SQUARE D CO 13 Dec 1973 [26 Dec 1972] 57905/73 Heading H1N [Also in Division H3] The coil assembly of an electromagnetic relay comprises a shell having a pair of spaced cavities in one of which is the coil winding and in the other is an electric circuit having solid state components for delaying the energization of the coil winding for a predetermined time interval after power is supplied to the circuit. The relay comprises a laminated iron armature 32 cooperating with an iron core 30 around which is situated the coil in its cavity in the shell 48, the armature operating a plurality of movable bridging contacts 26 cooperating with stationary contacts 24. The delay circuit in its cavity in the shell 12 comprises a RC timing circuit (116), Fig. 5, not shown, a reset circuit (114) a power supply circuit (112) and an output circuit (118). A pilot light lights during the timing period, which period can be adjusted by means of a potentiometer on the wall of the shell 12. The coil cavity is filled with an epoxy encapsulating material.
Patent GB-1239998-A (GB)
Title: Package and method of producing same
IPC: B65D73/00
Filed: 1968-12-11
Abstract: 1,239,998. Packaging. UNION CARBIDE CORP. 11 Dec., 1968 [15 Jan., 1968], No. 58859/68. Heading B8C. A package has a thin heat-shrinkable thermoplastic sheet disposed about and heat shrunk around its contents and is characterized by a heat seal in said thermoplastic sheet proximate to said contents forming an appendage extending from a main body portion of said package which, together with a header board 18 of stiff sheet material in contact with said appendage and limiting shrinkage thereof, forms a gripping tab. In one construction the sheet is originally in the form of a strip 12 which is formed into a loop with the ends adjacent each other and the end portions are capped by the header board 18, which is folded to V-shape; the interior portion of the header board prior to assembly is coated with a heat sensitive adhesive, for example a vinyl adhesive and the coated header board is then heat sealed to the end portions 16 of the strip; the contents, which as shown are two batteries 14, are then positioned in the loop and the thermoplastic sheet is heat shrunk on to the batteries. The header board in limiting shrinkage of the end portions 16, 16<SP>1</SP> of the thermoplastic sheet which form the appendage during the shrinking operation, causes a stress between the shrunken thermoplastic sheet of the main body of the package and the unshrunken thermoplastic sheet material of the appendage enabling the thermoplastic sheet to be easily torn along the line of stress. In a modified construction the end portions of the thermoplastic sheets are heat sealed to the exterior of the header board which is in the form of a strip of material, the end portions can be disposed either on opposite sides of the header board or on the same side; after the heat sealing the thermoplastic strip is shrunk about the contents when they have been inserted in the loop. In an alternative construction the thermoplastic sheet is in the form of a tube and this is heat sealed longitudinally to form two tubular compartments, a first compartment which receives the header board which again is in the form of a strip and a second compartment for receiving the contents; the thermoplastic sheet is then heat shrunk around the contents and around the header board although the header board limits the shrinkage of the portion of the thermoplastic sheet surrounding it.
Patent GB-1207830-A (GB)
Title: Automatic xerographic development control
IPC: G03G15/043
Filed: 1967-12-29
Abstract: 1,207,830. Developing electrostatic images. RANK XEROX Ltd. Dec. 29, 1967, [Jan. 3, 1967], No. 59080/67. Heading G2H. The potential applied to a development electrode 24 is controlled by a first circuit which is activated solely during the exposure of a charged xerographic plate to produce a first potential which is a direct function of exposure time and intensity and approximates the drop in plate voltage in fully exposed areas and a second circuit which subtracts the first potential from the initial potential and applies the resulting potential between the plate and electrode to eliminate the field therebetween. In one embodiment, xerographic plate 14 is exposed to a document, photograph or other subject 19 illuminated by lamps 20. A photo-sensitive device 30 is exposed to a sample of background material 32 having the same optical density as the background areas of the subject. The device 30 is connected to an amplifier 34 connected through a resistor 36 to a capacitor. Capacitor 38 is charged during exposure at a rate proportional to the intensity of illumination as detected by the device 30. The development electrode 24 is swung into position in front of the plate 12 and a switch 28 is moved to right to connect power supply 40 to the capacitor 38. The supply 40 had a voltage and polarity equal to the voltage of the initally charged plate, such that the potential of the development electrode is equal to the potential of supply 40 minus the potential across capacitor 38 and so approximates the potential in image areas appearing as highlights. No electro-statically attractable particles are deposited in these areas, since there is no electric field between the plate and electrode. In a modification, the exposed plate is removed and placed in a support (66) Fig. 3 (not shown) beneath a developer hopper (68) controlled by a solenoid valve (70). In this case an amplifier (60) replaces the power supply 40, Fig. 1. In another embodiment capacitor (38) Fig. (not shown) is connected to a variable resistance circuit (78) connected to the electrode (24). In one form resistance of circuit the output of a divided circuit (90) Fig. 7 (not shown) is fed to an amplifier (92) which generates an output signal fed to the base of transistor (80) connected to the capacitor.
Patent GB-1344269-A (GB)
Title: Intercalated chalcogenides
IPC: C01B19/00
Filed: 1970-12-11
Abstract: 1344269 Intercalated metal chalcogenides SYNTEX ENERGY RESEARCH Inc and VARIAN ENERGY 11 Dec 1970 [11 Dec 1969 25 Nov 1970] 59098/70 Heading C1A [Also in Division C5] A structurally layered, intercalate-containing heavy metal chalcogenide comprises as the heavy metal element titanium, vanadium, zirconium, niobium, hafnium, tantalum, platinum, palladium, gallium and mixtures thereof, the chalcogen being selected from sulphur, selenium and tellurium or mixtures thereof, with the proviso that when the element is gallium the chalcogen is tellurium and that when the heavy metal chalcogenide is titanium disulphide the titanium disulphide has been subjected to an ordering treatment, and the intercalate being selected from at least one inorganic and organic compound, the compound being an electron donor, or an electron acceptor, or having a substantial polarization interaction, or being capable of dorbital bonding. Many examples are given of each type of intercalate. Preferred electron donors are Lewis bases, especially amines, amides, heterocyclic bases and amidines. Intercalation with organic compounds may be achieved by (1) immersion of the chalcogenide crystals in a solution or melt of the organic compound, (2) by placing the crystals in the vapour of the organic compound, or (3) by mixing the crystals with the organic compound in the solid phase. The crystals may be first intercalated with an appropriate compound and then treated with a second organic compound which then intercalates along with the first compound. Alternatively, the metals may be first treated with a compound that intercalates readily and then treated with a second organic compound that intercalates at an accelerated rate due to the presence of the first compound, the first compound being displaced by the second compound. Intercalation with inorganic compounds may be achieved by immersion in solutions or melts. Preferably the chalcogenides are pretreated before intercalation to order the layers thereof, i.e. to remove excess metal between the layers. This ordering may be achieved by annealing or by pre-intercalation with strong organic Lewis base, e.g. ammonia. The compositions may be used as lubricants.
Patent GB-1282759-A (GB)
Title: Method of manufacturing discs from wire
Inventor: LACHAUSSEE MAURICE
IPC: B21K21/02
Filed: 1969-12-04
Abstract: 1282759 Forging M LACHAUSSEE and A MAIGRET 4 Dec 1969 [18 Aug 1969] 59253/69 Heading B3H A disc is made by cutting a length of wire from wire stock, forging the length in a prismatic cavity in a first die 4 and then forging the prismatic blank in a disc-shaped cavity in a second die 5. The prismatic cavity is preferably triangular or star shaped with three lobes. The disc has a circular or polygonal cross-section. The disc is used as the starting blank for a stamping, drawing or extruding operation. The length of wire and the prismatic blank are supported around their periphery by the dies during forging to prevent buckling.
Patent GB-1165510-A (GB)
Title: Solid Electrolytic Capacitors
Inventor: MOSEBACH WOLFGANG
IPC: H01G13/00
Filed: 1968-12-13
Abstract: 1,165,510. Electrolytic capacitors. STANDARD TELEPHONES & CABLES Ltd. 13 Dec., 1968, No. 59340/68. Heading H1M. In a solid electrolytic capacitor comprising a porous sintered valve metal anode 3 the surfaces of which are coated with dielectric layer 4 of an oxide of the metal, the outside surface of the anode is coated with an additional layer of dielectric material 6 directly on top of the oxide layer to increase its dielectric strength. The additional layer may be silicon nitride, boron nitride or silicon dioxide deposited preferably by a gas plasma reaction, or a further anodically formed oxide layer using an electrolyte of lower ionic mobility. For example the primary anodizing may use 0À02% phosphoric acid in water, and the second either 0À005% phosphoric acid in 50: 50 ethylene glycol-water or 70% glacial acetic acid to 30% water. The anode, preferaby tantalum or niobium is reanodized after the additional layer is applied.
Patent GB-1366968-A (GB)
Title: Fuel pin for a liquid-metal-cooled fast-breeder nuclear reactor
IPC: G21C9/02
Filed: 1972-12-28
Abstract: 1366968 Fuel elements UNITED STATES ATOMIC ENERGY COMMISSION 28 Dec 1972 [28 Jan 1972] 59864/72 Heading G6C An inherently safe fuel pin for a liquid metal cooled, fast breeder reactor is designed so that axial movement of molten fuel is enhanced and return of the molten fuel to the fuel zone substantially prevented if a sudden reactivity insertion causes melting of the fuel. The fuel pin includes an annular upper blanket separated from a solid fuel zone by a conical nozzle, the upper nose of which is welded into a grid plate extending across the fuel pin and supporting the annular upper blanket. Thus, should the fuel melt, it is ejected into the central opening of the annular blanket through the conical nozzle, a substantial proportion of the returning molten fuel being trapped in a pocket formed between the conical nozzle and the cladding tube. The nozzle and cladding tube are formed of stainless steel, while the fuel employed is mixed UO 2 - PuO 2  and the blanket material is depleted UO 2 .
Patent GB-1455279-A (GB)
Title: Chuck
IPC: B23B31/167
Filed: 1973-12-31
Abstract: 1455279 Chucks METROLOGY SYSTEMS CORP 31 Dec 1973 60217/73 Heading B3B A chuck for holding a workpiece or tool comprises a body portion 12 rotatable relative to a cover plate 26 and end plate 60 to actuate the jaw means 52, 38 and comprising an annular rim 14, a web portion 16, and actuating means in the form of pins 20, the pins 20 engaging cam means 70 that move in a plane substantially perpendicular to the chuck axis and chordwise to said axis, and the jaws 52 being radially movable in response to said cam movement by the cam means 70 engaging in slots in the jaw means. The cam means are constituted by elongate cams 70, one for each jaw, having parallel end portions slidable in chordwise slots (36) (Fig. 3, not shown) and an angled intermediate portion that engages in the rear slot (40) of the jaw slide 38. Movement of the cam 70 longitudinally causes radial movement of the slide 38. Arcuate slots 21 are provided in the web portion 16 to allow limited rotation of the body portion 12 to actuate the jaws. The body portion may have a knurled finish for hand tightening or may have holes for a wrench, spanner flats for an open ended spanner or (Figs. 8 and 9, not shown) may have bevel gear means and chuck key to actuate the chuck.
Patent GB-1176305-A (GB)
Title: Intermediary Support for Piano Action
Inventor: SUNDSTROM JAMES WILLIAM
IPC: G10C3/16
Filed: 1968-07-25
Abstract: 1,176,305. Pianos. WURLITZER CO. 25 July, 1968, No. 60471/68. Divided out of 1,176,304. Heading G5J. [Also in Division E2] As shown in Fig. 1, a hammer 66 forming part of a piano action 54 is mounted on a butt knuckle 68 which is pivotally mounted on a main rail 60 by a butt flange 72 and a pivot pin 74. As shown in Figs. 2 to 4, the flange 72 comprises a rigid body 114 having a transverse channel 116 to receive a rib on the main rail 60 and an intersecting bore to receive a wood screw attaching the flange to the rail. The body 114 includes a pair of arms 122, 124, perforated with aligned bores 126 whereby the arms define a pivot for the butt knuckle 68. Tubular felt bushings 128 each comprising an abbreviated strip of felt which has been formed into a sleeve are secured in the bores 126 by adhesive material and receive the pin 74. As shown in Fig. 5, the surface of each of the bores 126a in the flange 72a is provided with a helical groove 136 to retain a portion of the adhesive 130 and thereby key the felt bushings 128 to the bores 126a. As is shown in Fig. 6, the abutting edges of each bushing 128 are bias cut and therefore form a helical juncture 140 around the received portion of the pivot pin 74 which is thereby prevented from entering the fissure between the abutting edges when the butt knuckle pivots about the pin.
Patent GB-1292599-A (GB)
Title: Method for the preparation of printing plates
Inventor: HAES LOUIS MARIA DE
IPC: G03F7/06
Filed: 1968-12-20
Abstract: 1292599 Planographic printing plates AGFA-GEVAERT 19 Dec 1969 [20 Dec 1968] 60837/68 Heading G2M [Also in Division B6] A hydrophilic colloid layer bearing a silver image produced by a silver complex diffusion transfer process is treated with an acidic aqueous composition containing (a) cerium (III) ions, preferably cerium sulphate, which at least superficially oxidises the image and (b) an organic compound which renders the oxidized silver hydrophobic; the colloid layer being hardened before during or after the treatment. The composition may also include other oxidizing agents e.g. Pb, Hg, Cu, Cr, Fe ions, a water-soluble permanganate, or iodic acid. The organic compound may be 1-allyl-imidazoline-2-thione. A latent hardener may be incorporated in the plate.
Patent GB-652926-A (GB)
Abstract: 652,926. Loose-leaf binders. BROWNING, W. H., and HARE & SON, Ltd., C. H. Jan. 13, 1948, Nos. 1065 and 8568. [Class 146 (i)] In a loose-leaf binder comprising oppositely disposed clamping bars movable towards and away from each other and having locking mechanism retaining the bars in closed position, locating members cooperating with locating formations on or near the inner edge of a sheet and a telescopic sheet locking member extending between the clamping bars, for and separate from each locating member to engage a recess in the inner edge of the sheet, a first sheet locating member, fixed in relation to one of the clamping bars is mounted closely adjacent each telescopic sheet locking member and at least one additional locating member is fixed in relation to the other clamping bar and is spaced from the corresponding telescopic sheet locking member. Further means may also be provided to allow offsetting of the sheets. Clamping bars 1, 2 integral with back plates 3, 4 are locked together by spring loaded detent pawls on levers 16, 17 on the back plate 3 co-operating with teeth on the underside of rack members 9, 10 on the bar 2, the levers 16, 17 having pawl releasing triggers 18, 19 over an aperture 20, through which pins may be inserted to open the clamping bars. Such opening of the clamping bars may be effected by a machine as described in Specification 652,921. Telescopic sheet locking members A, C and second telescopic locking members B, D are associated with the locating and additional locating members 22, 26 ; 24, 28 and 23, 27 ; 25, 29 respectively. Each locating member 22, 23, 24, 25 has a short locating edge 22a, 23a, 24a, 25a engaging one tongue 61 of the undercut recess 63 of a sheet 65 while the corresponding, higher, locating edge of the additional members engages the outer side edge of the sheet. The telescopic members A, B, C, D comprise rods 34 .. 37 fitting in the turned over edges of plates 30.. 33 which are pivotally mounted on rods 30a.. 33a so that in the vertical position they engage the portion 62 of the recess 63 to lock the sheet 65. The members A, B, C, D are spring urged to the sheet release position and are urged outwardly to lock the sheets by means of a wedge 41 slidably mounted on the rack members 9, 10 and operated by a knob, at the end of rod 43 passing through the bar 2 to press apart cam plates 39 (not shown), and 40 on the plates 31, 32, the plates 30, 33 being moved by connecting plates between the respective rods 34, 35 and 36, 37. A non-offsetting binder is also described. A further binder is described in which the members A, B, C, D are spring urged to the sheet locking position and plates connecting the rods 34, 35 and 36, 37 each have a slot engageable through a slot in the clamping bar 2 by a cam shaped finger or plate. Such opening fingers or plates may be on a fixed portion of an opening machine such as described in Specification 52,921.
Patent GB-732806-A (GB)
Abstract: 732,806. Electric portable igniters. RIDDELL, S. F. J. Jan. 11, 1954 [Jan. 17, 1953], No. 1415/53. Class 75 (3). An electric gas lighter comprises a body 1 of pistol-like form having in the end portion of the barrel 3 thereof, a heating element 3a fed from the secondary low voltage side of a main transformer 2 housed in the butt end of the body 1 and a switch device 6, 7 operated by a spring-biased trigger-like member 4 as by bridging the contacts 6, 7 by a contact 4a, to close, for example, the primary circuit of the transformer. The body 1 is made, for example, in two similar parts of plastic material held together by screws 8a, 8b, 8c, the barrel being of metal having a flanged end 3b held in recesses in the body 1. The transformer may alternatively be accommodated in the plug of a plug-andsocket device for connecting the lighter to the mains.
Patent GB-745510-A (GB)
Abstract: 745,510. Sparking plugs. BENDIX AVIATION CORPORATION. Sept. 9, 1954 [Sept 29. 1953]. No. 26167/54. Class 7(4) CONSTRUCTION (a) Spark Gap In an ignition device having an igniter-gap assembly s in which an annular spark-gap 27 is bridged by a semiconductive surface 29. and defined by two annular electrodes 23, 26 the former having one side seated against an internal shoulder formed at one end of a tubular shell 20, whilst one side of electrode 26 is seated against an enlarged head 25 formed at the corresponding end of a centre electrode supporting-rod 24 disposed axially of the shell 20. there is provided an insulating sleeve 28 one end of which forms the surface 29 whilst the ends of the shell 20 and rod 24 remote from the electrodes are spun inwards and outwards, respectively, over the sleeve 28 to maintain the parts in assembly; the invention also comprises a method of making such an ignition device. The shell 20 rests upon, as well as be- .ing. a force fit within a body flange 12, the latter having the tungsten electrode ring 23 soldered thereon; the support 24 to which is attached a terminal 15 is spaced from the shell 20 by the aluminium oxide insulator 28, whilst the head 25 which terminates flush with the ends of the body 10 and shell 20 has soldered thereto the tungsten centre electrode ring 26, the resulting spark gap 27 being at the tip of a conical sectioned groove formed by the sloping sides of the inner ends of the head 25 and the shell 20. The ground inner end of the insulator 28 which bridges both electrode rings is treated with silver nitrate or impregnated with an electrically conductive substance such as carbon or graphite to render it semi-conductive. Brass washers are inserted under the spun over ends of the support 24 and shell 20. To facilitate the assembling operation the body 10, shell 20 and support 24 are initially provided with extensions 33, 34 and 35 respectively and a ring 37 all of which are dispensed with when the assembly has been completed. The tungsten electrode rings may be replaced by platinum or platinum alloy elements. (b) GENERAL Above the assembly s is a sleeve 17 of ceramic or other insulating material and a powdered mass 16 of lead borosilicate glass or a lead cobalt silicate glass frit, one suitable composition comprising 16 equal parts by weight of lead oxide and Pyrex glass, the mass being rendered plastic during assembly and compressed so that a part thereof is forced into the space between the sleeve 17 and shell 10. The upper end of the latter receives a nut or a shielding barrel 19. Reference has been directed by the Comptroller to Specification 724,836.
Patent GB-2003218-A (GB)
Title: Lintels for cavity walls
IPC: E04C3/294
Filed: 1978-08-15
Abstract: This invention relates to lintels for use across openings in cavity walls and provides a lintel consisting partly of metal and partly of concrete. The lintel includes front and rear flanges, e.g. 2, 3, consisting of metal, and a central web, e.g. 12, consisting partly of metal and partly of concrete. The two flanges and the metal part of the web are preferably constituted by a metal member formed from a single strip of metal. The concrete part of the web may be constituted by a concrete beam cast integrally with the metal member or a concrete beam which is removably attached to the metal member, for example, by means of nuts and bolts. The concrete part may be formed in a permanent form of resin-impregnated glass fibres. <IMAGE>
Patent GB-2003415-A (GB)
Title: Improvements relating to the manufacture of containers
IPC: B21D22/20
Filed: 1978-08-22
Abstract: Drawn and ironed container bodies based e.g. on steel or aluminium are made from metal sheet blanks having on at least one of their surfaces permanently-affixed plastics film/ adhesive laminate. The plastics film may be p.v.c., polypropylene etc. and the adhesive for example a maleic anhydride modified polypropylene. One surface of the blank, if only one is laminate-clad, can be coated with an abrasion and breakdown resistant organic resin composition, e.g. epoxy phenolic resin.
Patent GB-2006121-A (GB)
Title: Lifeboats
IPC: B63C9/06
Filed: 1978-09-06
Abstract: A lifeboat has a horizontally extending transverse duct (3) and access to the interior of the lifeboat through openings (5) in the side walls (2) of said duct (3) providing easy access to the lifeboat for shipwrecked persons while swimming. <IMAGE>