baber/WOPTO huggingface dataset:
Patent GB-810619-A (GB)
Title: Improvements in and relating to closed-circuit television systems
Inventor: MASH DEREK HUBERT
IPC: H04N3/12
Filed: 1956-08-28
Abstract: 810,619. Photo-electric devices. THORN ELECTRICAL INDUSTRIES Ltd. Aug. 7, 1957 [Aug. 28, 1956], No. 26316/56. Class 37. [Also in Groups XL (a) and XL (b)] A closed-circuit television system employs a photo-conductive device for the production of image signals and an electro-luminescent device for reproduction of the image corresponding elements of each device being connected together by individual conductors of any required length. As shown, the photo-conductive device comprises a layer 10 of photo-conductive material positioned between a transparent conducting layer 11 and a mosaic of mutually-insulated conducting elements 12 each of which is connected via individual wires 13 (e.g. 50,000 wires) to individual elements 14 of a like mosaic which, with a layer 15 of super-linear resistive material (i.e. a material in which current varies as a power greater than unity of the applied voltage, e.g. silicon carbide), a layer 17 of electroluminescent material and a transparent conducting layer 16, forms the electroluminescent device. In order to operate the latter device a source of alternating current is necessary but, since for any useful length of the wires 13 the capacitance 18 between the wires renders the system impracticable by preventing any " pattern " of A.C. voltages produced on the wires at the end A from being transferred, as such, to the end B, a D.C. source 21 is connected in series with the A.C. source 20 between the layers 11 and 16. In operation, the A.C. voltage " passes through " the layer 10 to the mosaic elements 12 and the wires 13 both capacitively and, where the layer 10 is illuminated, conductively. Owing to the capacitances 18, however, the A.C. potential at the end B is approximately the same on all the wires. The D.C. is, however, fed to the wires 13 only at those regions where the photo-conductive layer 10 is illuminated and the resulting " pattern " is maintained to the B end since there is no D.C. leakage between the wires. This D.C. pattern is then converted into a resistance pattern in the layer 15 which therefore controls the A.C. applied to the electroluminescent layer 17 in a corresponding pattern so that the light emitted at 22 is a reproduction of the image formed on layer 10.
Patent GB-1304027-A (GB)
IPC: C08G77/38
Filed: 1970-06-01
Abstract: 1304027 Regenerated silicone rubber GOODYEAR TIRE & RUBBER CO 1 June 1970 [1 July 1969] 26334/70 Heading C3T Silicone rubber is regenerated by (a) contacting the rubber in an essentially non-aqueous medium with an acid of formula in which R 1  is halogen, R 2  is H, halogen or a C 1-5  optionally halogenated alkyl radical and R 3  is H or halogen, the rubber being degenerated to an easily masticatable state; (b) revulcanizing the degraded rubber. A preferred I is trichloracetic acid. Treatment with I may take place in a non-aqueous solvent, e.g. C 2 H 2 Cl 2 , C 2 HCl 3 , C 2 Cl 4 , CHCl 3 , C(CH 3 )Cl 3 , CH 2 Cl 2 , (CH 2 - Cl) 2 , C 2 H 3 Cl 3 , or (CHCl 2 ) 2 . The rubber may be revulcanized using an alkoxy-, amino-, oxime- or mercapto-silane. Unsaturated rubber may be revulcanized using a peroxide.
Patent GB-1215285-A (GB)
Title: Device for electro-magnetic shutter control
Inventor: HILBIG ERICH
IPC: G03B7/083
Filed: 1969-05-23
Abstract: 1,215,285. Photographic Shutters. KOMBINAT PENTACON DRESDEN KAMERA-UND KINOWERKE VEB. May 23, 1969 No.26460/69. Heading G2A. An electronically timed shutter having a switch opened at the start of the shutter opening movement to commence the delay timing of the electric circuit has one of the switch contacts formed by a shutter member itself or a drive element thereof. An opening blade 1 and a closing blade 16 are mounted on pivotted levers 2 and 15, a release pawl 9 and an electromagnet 18 being arranged to hold the blades in the position shown. A contact piece 5 provided on lever 2 has an edge 7 over which the release pawl 9, which has a knife 8, slides. The separation of edges 7, 8 opens the switch and releases blade 1. Conductors 6, 10 are connected across an integrating capacitor of the timing circuit. In an alternative arrangement, Fig. 3 (not shown), a contact lever (23) bears under the action of a spring (22) on the free end of lever 2, and conductor 10 is connected to the contact lever.
Patent GB-704484-A (GB)
Title: An electrically-heated device for lighting solid-fuel fires
IPC: F23Q7/02
Filed: 1951-11-13
Abstract: 704,484. Electric firelighters. JOHNSON, G. Sept. 11. 1952 [Nov. 13, 1951]. No. 26497/51. Class 39 (3) A portable electric firelighter comprises a metal casing having apertured top and bottom plates 31, 1 separated by a peripheral wall 2, a handle 10, and an electric heating element 14 disposed beneath the top plate 31 which provides radial solid bars 37 to protect the element 14. The bottom of the casing is apertured at 8, and the lid 31, which is apertured at 36, is removably fitted to the casing which contains a continuous heating coil 14 supported on radial insulating sleeves 15 which are mounted on removable metal rods 16 supported at each end in holes 13, 9 in a central boss 12 and in the wall 2 respectively. The leads to the coil 14 are taken out through the hollow handle 10. The wall 2 is a flange on the bottom plate 1 and fits inside a flange 33 on the top plate 31, pips 11 on the flange 2 entering recesses 35 on the flange 33.
Patent GB-362498-A (GB)
Title: Improvements in and relating to furnaces for the supply of hot gases
IPC: F26B21/00
Filed: 1930-09-05
Abstract: 362,498. Furnaces for supplying hot gases for drying materials. HARDING, L., Hatherleigh, Woldingham, Surrey, and DEBENHAM, E. R., 15, St. James's Place, St. James's, London. Sept. 5, 1930, No. 26505. [Classes 51 (i) and 51 (ii).] A furnace for producing a mixture of hot air and furnace gases for drying materials comprises a firegrate 14 above which are supported independently upon columns 5, a combustion chamber 19 and hot gas withdrawal flue 18 including a hood 3, a space 6 being provided between the combustion chamber and hood for the admission of air, which is regulated by relative adjustment of the hood and combustion chamber. A casing 9 surrounds the combustion chamber and provides an annular passage for air admitted at 8 and serving to cool the combustion chamber before entering the combustion zone. The grate 14 may be saucer shape and mounted on a frame provided with wheels. The part of the flue 18 above the combustion chamber is protected by refractory material 1. Fuel is fed to the grate from an annular hopper 12.
Patent GB-635602-A (GB)
Title: Detachable connection
IPC: F16B12/34
Filed: 1947-10-01
Abstract: 635,602. Stud-and-socket fastenings. SAUER, P. K. N., and ALLRAUM AKT.-GES. Oct. 1, 1947, No. 26506. [Class 44] A bolt for connecting together two members, e.g. of channel section, as shown in Fig. 6, comprises a shank 3 carrying a radial projection 5. The members 1, 2 are formed with registering holes through which the bolt passes and the inner one 2 carries a stop 11. The projection 5 has sloping surfaces 6, the lower of which rests on the stop 11 when the bolt is inserted. Rotation of the bolt in a clockwise direction causes the projection to abut the stop 11 and to engage the inside surfaces of the inner member to prevent axial movement of the bolt (Fig. 4). The sharp comers 7 of the projection may be adapted to'dig into the metal of the inner member to prevent unintentional rotation. The hemispherical stop may be replaced by a stop with a sloping upper surface. In other forms the projection is provided with a resilient member frictionally to engage a surface of the inner member to retain the bolt in the locking position. A spring received in a bore in the projection may engage the upper surface of the inner member on a cylindrical surface formed on the inner member concentric with the shank 3. The spring may be replaced by a plate of rubber or the whole projection may be of rubber bonded to the shank and adapted to engage the upper and lower surfaces of the inside member. In the form of Fig. 29, the shank 61 carries projections 62 at the upper end and is slotted at the lower end to receive a spring-loaded catch plate 66 engaging in a notch 68 to retain the bolt in the locking position. In another form, Fig. 11, for securing together structural parts 21, 25 the bolt has two projections 30 and passes through a slot 44 in the member 21. A collar 32 is arranged to engage under opposite strips 42 on the member 21 to retain the bolt against axial movement in the position where the projections 30 are aligned with the hole 45. In this position the bolt is prevented from turning by the resilient engagement of the walls 39 of the member 21 with flats 35 of a cam-piece 33 on the bolt. When all the bolts have been mounted on the member 21, the member 25 is fitted, the projections 30 passing through holes 45 and the shank ends 31 being received in holes 46. The bolts are then turned counter-clockwise through 90 degrees to secure the members together. The bolt is retained in the locking position by the resilient engagement of the walls 39 with the flats 66. In the last turning movement the walls 39 spread to pass the rounded comers 47 of the cam 33 but will not pass the corners 48 which therefore act as stops limiting the rotation of the bolt. The bolt may only be provided with one projection and there may be only one set of cam surfaces 35, 36, 37 on the cam 33.
Patent GB-503143-A (GB)
Title: Drop-dispensing bottle
IPC: B65D47/18
Filed: 1937-10-01
Abstract: 503,143. Bottles &c. KIRMES, E. Oct. 1, 1937, No. 26547. [Class 125 (i)] A drop - dispensing bottle 1 for cuticle remover &c. has a cap 2 with aperture 6 normally closed by a rubber &c. conical plug 5 in one piece with a washer 3 apertured at 4, pressure of the tip 7 of the plug against the nail forcing the plug inwards and releasing fluid through opening 6. The plug may be separate and supported resiliently by a piece of rubber sponge 9 within the cap as shown in Fig. 3, the plug 5 being formed with a passage 13 ending in an outlet 7 and the cap 2 being inserted in the neck of the container 1 with an interposed rubber ring 12.
Patent GB-823758-A (GB)
Title: Flange-type pipe joints
IPC: F16L23/032
Filed: 1957-08-22
Abstract: 823,758. Pipe joints. CHEMETRON CORPORATION [formerly NATIONAL CYLINDER GAS CO.]. Aug. 22, 1957 [Aug. 28, 1956], No. 26594/57. Class 99(1). A steel flange 11 of a pipe joint has a tapered face 11a which on being secured to a cast iron flange 10a exerts a progressive sealing force on an interposed gasket 15 from its bore face 15a outwards. To allow flexure when tightening bolts 16, the flange 11 is thinner than the opposing flange and the tapered face is inclined to the normal of the pipe axis at an angle of from ¢ to 4 degrees. The gasket 15 made of compressed asbestos, natural or synthetic rubber or the like, is thin and has flat parallel faces and may extend from the pipe bore to or beyond the bolts. On tightening the bolts the flange 10a negligibly deflects whereas flange 11 is moved towards it and may deflect through an angle nearly equal to its original taper and may deform so as to exceed the elastic limit of the material. The steel flange 11 is constructed so that the ratio of its radial width to its thickness is from 4¢ to 5 and is provided with a bevelled short neck 11b for welding at 25 to a pipe 12.
Patent GB-963997-A (GB)
Title: Means for sealing relatively movable members
IPC: F16J15/34
Filed: 1960-07-29
Abstract: 963,997. Seals; valves. DAVID F. WISEMAN & SONS Ltd., GESELLSCHAFT DER L. VON ROLL'SCHEN EISENWERKE A.G., and F. E. SWAIN. July 29, 1960 [July 29, 1959 (2)], No. 26611/60. Headings F2B and F2V. A seal for preventing the flow of fluid between two relatively movable members 2, 3, Fig. 1, comprises a sealing element 4 which is formed of an elastic, incompressible material and is mounted in one of the members 2 (as shown), so that its other end makes only slight contact with the other member in the absence of fluid pressure, the arrangement being such that, upon the application of fluid pressure from one side, the element 4 escapes a sufficiently large surface on that side to cause it to act as a toggle linkage 9, Fig. 2, whereby the sealing pressure exerted by the element against the member 3 is of greater magnitude than the applied pressure; the desired toggle action is conditional upon the exposed side face 4b of the element defining an angle α of more than 30 degrees with the member 3 and arranging for the gap between the members 2, 3 to exceed one-third of the width b of the contact end of the element. The side of the element forming the angle α may be flat, concave or convex and, if desired, both side faces may be so formed. The member 3 may be a shaft rotatable in a housing 2 or a butterfly valve pivoted in a conduit 2, in which case the element 4 serves as a seat for the valve in its closed position. If desired, the element may be of rubber, provided with an internal reinforcement or a hollow metal ring filled with a pressurized medium.
Patent GB-774179-A (GB)
Title: Fitting for controlling the flow of fluid in pipe lines
IPC: F16K3/312
Filed: 1953-09-29
Abstract: 774,179. Valves. HANDLEY, J. Sept. 24, 1954 [Sept. 29, 1953; Oct. 6, 1953; Oct. 16, 1953; Nov. 12, 1953], Nos. 26675/53, 27478/53, 28569/53 and 31329/53. Class 135. A valve includes two pipe sections 1, 2 rigidly interconnected, e.g. by the bolts 5 and distance pieces 6, a valve plate 7 insertable between the sections, seals 9, 10 on the pipe sections for engaging opposite sides of the plate and contractile and expansile means associated with one seal, e.g. a clamping band 13 having a wedging action for moving the ring 11 carrying the seal 10 for engaging or disengaging the plate and a further seal 12 influenced by the band for engaging a lip 14 on one pipe section. The band is split and the ends connected together by an adjusting screw. The band may be narrowed opposite the screw to overcome friction and produce equal pressure on the seal.
Patent GB-303783-A (GB)
Title: Improvements in clutching devices
IPC: F16D37/00
Filed: 1928-09-19
Abstract: 303,783. Aktiebolaget Pulvis. Jan. 9, 1928, [Convention date]. Addition to 275,125. Clutches, ratchet. -In the device of the parent Specification wherein a rotary bladed member drives a surrounding drum or casing through a loose mass of powdered, granular or like material, the blades are hinged so as to drive only in one direction and to allow over running. As shown, a driving drum 5 is integral with the boss 4 carrying pivoted blades 6, the casing 3, driven. through the mass of material 10, being integral with a sleeve 2 secured to the shaft 1.
Patent GB-482592-A (GB)
Title: Improvements relating to electric bells
IPC: G10K1/26
Filed: 1936-10-03
Abstract: 482,592. Electric bells. FOLKES, G. E. (Kastl, J., [trading as Castelco Fabrik f³r Elektrische Apparate und Metallwaren].) Oct. 3, 1936, No. 26837. [Class 13] An electric bell has a mounting plate 1 which carries a gong (not shown) and a pivot bearing for the axle pin of the vibratory arm 7 and which incorporates at one end an integrally formed outwardlyprojecting section 2 which continues in an integral inwardlydirected section 5 parallel to the outer surface of the said mounting plate, the outwardly-projecting section serving to carry the coils 3, 4 and the inwardly-turned parallel section to carry a cover (not shown). The armature 7 carrying the clapper 8 is mounted on a pin having one end mounted in the plate 1 and the opposite end 9 engaged in a bearing in the cranked portion 11 of a bracket 12 riveted to the plate 1. A plate spring 14 secured to the armature 7 has its upper end held by a second cranked portion 13 of the bracket 12 and its lower end carries a contact in engagement with a contact pin 17 adjustably secured by screws 19, 20 in a block 15 of rectangular shape fitting in a rectangular recess in a washer 16 made of insulating material and secured to the plate 1.
Patent GB-245394-A (GB)
Title: Improvements in screw cutting apparatus
IPC: B23G5/12
Filed: 1925-10-27
Abstract: 245,394. Wagner, K. Oct. 27, 1925. Screwing die-heads.-In a pivoted carrier diehead the die-carriers 3 have plain cylindrical pivot-pins 4 entering holes in the body 2, and are retained in place by arcuate guide strips 7 having flanges 5 which engage grooves 5 in the carriers. Closure is effected by an axially sliding bevelled sleeve 9, engaging projections 14 on the carriers, these projections lying in the same plane as the cutters. The dies are opened by radial spring plungers 10 engaging pins 12 on the carriers, and the motion of the plungers is limited by stops. To remove the carriers the sleeve 9 is drawn back and the carriers are rotated outwards about their pivots till they are clear of the guides 7.
Patent GB-264433-A (GB)
Title: Improvements in or relating to lock nuts
IPC: F16B39/32
Filed: 1926-10-29
Abstract: 264,433. Whitmore, T. E., and Kiely, J. Oct. 29, 1926. Locking nuts.-In a locknut of the kind in which a pawl h pivots in a V-slot d one edge of which is approximately tangential to the bore of the nut, a handle k<1> for actuating the pawl projects loosely through the slot g. The pawl has teeth of less depth than the bolt threads and its edge h<1> is preferably chamfered.
Patent GB-256090-A (GB)
Title: Improvements in advertising signs and the like
IPC: G09F7/12
Filed: 1925-10-28
Abstract: 256,090. Ryan, A. W., and Gordon, A. Oct. 28, 1925. Drawings to Specification. Affixing by adhesives. - A rigid background is coated with plastic clay to which price tickets may be temporarily attached. The background may be varnished, lacquered, sized, painted, &c. to render it non-absorbent. To preserve the plasticity of the clay any oily material may be added. Specification 6528/95, [Class 3, Advertising &c.], is referred. to.
Patent GB-195345-A (GB)
IPC: C07C17/10
Filed: 1922-10-06
Abstract: Methane is chlorinated by interaction with antimony pentachloride; the product comprises mainly methyl chloride, but methylene chloride and chloroform are also obtained.  The reaction is preferably effected at temperatures of 300-350 DEG  C. in the presence of distributing bodies, such as refractory clay or pumice; but if a catalyst such as the chlorides of copper be present, the temperature of the reaction may be reduced to 250 DEG  C. The antimony trichloride formed is preferably condensed and after rechlorination is returned to the reaction chamber.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the use of iron and calcium chlorides as catalysts. This subject-matter does not appear in the Specification as accepted.
Patent GB-1351860-A (GB)
Title: Circuit-breakers
IPC: H01H33/70
Filed: 1971-04-19
Abstract: 1351860 Gas blast switches MAGRINI FABBRICHE RIUNITE MAGRINI-SCARPA E MAGNANO MSM SpA 19 April 1971 [16 April 1970] 27197/71 Heading H1N A blast nozzle for an axial blast circuit breaker has a first convergent zone 1, a second cylindrical zone 5 and third divergent zone 9, the zone 5 being formed with an annular channel 22 and a plurality of circumferentially spaced outlets 6 and the zone 9 with a plurality of annular, V-section grooves 13 as shown. There are at least six outlets 6 which may be radial as shown or slope towards the outlet 2 of the nozzle; they may be tapered. The channel 22 may have a rectangular section as shown or a triangular or semi-circular one.
Patent GB-306605-A (GB)
Title: Improvements in furnace grates
IPC: F23H11/00
Filed: 1927-11-23
Abstract: 306,605. Bennis, A. W. Nov. 23, 1927. Divided on 306,581. Grates; air supply, regulating. - In a travelling grate the carrier bars 2 for the grate bars 1 are provided with pivoted dampers 3 adapted to be independently controlled so as to vary the supply of air over sections of the grate either longitudinally or transversely. The dampers are supported by guide rails 6 adjustable in height and pivotally connected at their ends with vertical rods 23, 24, 25 with which engage levers mounted on spindles 17, 18, 19 rotated by handles 30, 31, 32 at the sides of the grate.
Patent GB-1512085-A (GB)
Title: Heat exchanger
IPC: F28F9/00
Filed: 1975-06-27
Abstract: 1512085 Heating catalytic reactions UHDE GmbH 27 June 1975 [1 July 1974] 27326/75 Heading B1F [Also in Division F4] A heat exchanger for utlizing the waste heat of a nuclear reactor to effect catalytic processes and intended to be arranged in a steel-lined pod 2 within the prestressed concrete 1 of the nuclear reactor, comprises inner and outer spaced vessels 9, 8 defining a first chamber containing a plurality of catalyst tubes 10 having inlet and outlet pipes 11, 12 which pass through the walls of the vessels 9, 8, the outlet pipes 12 also passing through a second chamber surrounding the first, the first chamber having an inlet 14 for hot gas and an outlet 16 for cooled gas, both in communication with the exterior of the outer vessel 8, the second chamber having an inlet and an outlet for water, and a third chamber 18 is defined between the steel lining 3 of the pod 2 and the outer vessel 8 of the heat exchanger. In operation hot gas from the reactor circulates within the third chamber 18 and also within the first chamber, the latter including baffles 15 which direct the gas around heat exchange tubes 10. Cooled gas is returned to the reactor from the inner vessel 9 via the outlet 16 and an associated passage 17. The third chamber 18 is sealed with respect to the atmosphere by an arrangement of double seals described in some detail. Spaces 25, 26 between the double seals may be filled with gas at pressure higher than that prevailing in the third chamber. The hot gas, helium, from the nuclear reactor acts as a thermally insulating layer within the third chamber 18, loses its heat within the first chamber for the purpose of effecting catalytic chemical reactions within the tubes 10 (methane reforming may be one such reaction) and, by virtue of the presence of water in the second chamber, generates steam. The amount of steam generated depends upon whether the inner vessel 9 has internal thermal insulation or not.
Patent GB-350343-A (GB)
IPC: C01D9/04
Filed: 1930-09-12
Abstract: In the production of sodium nitrate and ammonium chloride, an ammonium chloride-ammonium carbonate liquor, obtained in the process, is treated with gypsum, and then with sodium chloride and ammonia; the resultant sodium sulphate-calcium carbonate mixture is separated and decomposed with nitric acid.  Sodium nitrate is crystallized from the solution, the mother liquor being employed to dissolve fresh sodium sulphate.  Gypsum precipitated and carbon dioxide evolved are re-employed in the process.  The mother liquor from the separation of the sodium sulphate-calcium carbonate mixture is cooled to separate part of the ammonium chloride, and is then treated with carbon dioxide.  The ammonium chloride-ammonium carbonate liquor thus obtained is the starting material for the initial step.  In a modification, the ammonia necessary for the process may be introduced prior to the addition of gypsum.  Preferably, excess of sodium chloride is allowed to remain in solution in order better to salt out sodium sulphate. Ammonia for reuse may be recovered from the ammonium chloride obtained.  Specifications 349,823 and 351,271 are referred to.
Patent GB-386728-A (GB)
Title: Improvements in electric tumbler switches
IPC: H01H23/04
Filed: 1931-10-01
Abstract: 386,728. Switch handles. GENERAL ELECTRIC CO., Ltd. and COLLINGS, J. H., Magnet House, Kingsway, London. Oct. 1, 1931, No. 27331. [Class 38 (v).] The operating lever 4 of a tumbler switch of the flush or semi-flush type is formed with a screwed end part 7 on which is mounted a dolly part 6 which can be readily changed so as to match the appearance of the room. A ring 9, which is screwed on to the crown 5 of the bridge to hold a cover plate 1 in position, is provided with a flange 10 to conceal the bridge and any internal parts of the switch. The invention is also applicable to tumbler switches with domed covers.