baber/WOPTO huggingface dataset:
Patent GB-1169661-A (GB)
Title: Improvements in or relating to Method of Producing a Non-Woven Fabric and Fabric Produced thereby
IPC: D04H13/00
Filed: 1968-02-23
Abstract: 1,169,661. Laminated non-woven fabrics. HERCULES Inc. 23 Feb., 1968 [1 March, 1967], No. 8999/68. Heading B5N. A non-woven fabric is produced by passing superposed webs 1-5 of oriented plastics film through a needling device 16 which produces splits in the films and breaks up some of the resulting strands to form filamentary portions which are forced through the different layers, and causing at least the ends of the filamentary portions near the surface of the superposed webs to curl so as to interlock those portions. Preferably, the webs are oriented in directions along the web and across the web alternately and at least some of them are composite, being formed, e.g. by simultaneous extrusion, from two plastics materials, such as polypropylenes of different molecular weight distribution, having different shrink characteristics when heated, in which case, the curling of the filamentary portions is brought about by heating the webs either in the vicinity of the needling machine or in an oven 19. Feed rollers 17, 20 maintain a suitable tension during heating along the webs and a tenter mechanism may perform the same function across them. Other suitable plastics are polyolefins, polyesters, polyamides, polyethers and polyvinyls.
Patent GB-236647-A (GB)
Title: Improvements in radio signalling systems
IPC: H04K1/00
Filed: 1924-04-09
Abstract: 236,647. Bangay, R. D. April 9, 1924. Secret and selective signalling systems; directive signalling. - A secret wireless signalling system employs two directional transmitters a, bat a distance from each other and each capable of radiating a narrow beam. Some components of the signals are sent by one transmitter, and other components by the other transmitter, so that readable signals are received only in the space c common to the two beams. The signal key or microphone may be placed at either transmitter, or at an intermediate station d, connected by land lines e, e<1> to the two transmitters. The key may be so arranged that dot signals are sent along one line e to the transmitter a, whilst dash signals are sent on line e<1> to transmitter b. In another arrangement, a commutator is arranged to connect the key or microphone to the lines e, e<1> periodically and alternately. The marking-signals may be sent from one transmitter and the spacing signals from the other. Both transmitters may radiate carrier waves continuously and signals be sent as interruptions of two different supersonic modulating frequencies. In the space c, both supersonic frequencies are received, and their audible beats give the signal indication. For telephony, the higher-frequency components of voice currents may be sent from transmitter a, and the lower-frequency components from b, division being effected by filters.
Patent GB-1452093-A (GB)
Title: Evaporators
IPC: B01D1/04
Filed: 1973-02-23
Abstract: 1452093 Multi-effect evaporators UNITED KINGDOM ATOMIC ENERGY AUTHORITY 20 Feb 1974 [23 Feb 1973] 9137/73 Heading B1B A multi-effect film evaporator comprises preheaters 10, a first evaporation chamber 12 and subsequent evaporation chambers 1, each chamber 1 comprising substantially horizontal tubes 2 extending between a vapour box 3 'and a condensate box 4, and each box 4 being provided with means 5 for venting incondensible gas. In use chamber 12 is heated by steam from a boiler (not shown) passing through tubes 14, the outflow from tubes 14 being returned to the boiler. The vapour produced in each chamber is passed through a preheater 10 where it heats incoming liquid (e.g. salt water) and then through the tubes 2 of the next lower chamber. Concentrated liquid is passed from one chamber to the next. by pipe 7 and sprayer 6. Condensate from boxes 4 is passed to common duct 17 where some flashing occurs.
Patent GB-1416667-A (GB)
Title: Production of antistatic polyamide fibres
IPC: D06M101/16
Filed: 1974-02-28
Abstract: 1416667 Antistatic polyamide fibres ALLIED CHEMICAL CORP 28 Feb 1974 [14 March 1973] 9156/74 Heading C3R An antistatic polyamide fibre contains (a) 1 to 12 wt. per cent of a predominantly branched product obtained by chain extending a tetrol (i) of M.W. 4000 to 50,000, wherein a to z are integers and A is a C 1-13  divalent hydrocarbylene radical, with (ii) a diepoxide or a compound yielding a divalent radical -CO-R<SP>1</SP>-CO- or -CONH-R<SP>1</SP>-NHCO-, where R<SP>1</SP> is a C 1-30  hydrocarbylene radical, e.g. diesters of dicarboxylie acids or diisocyanates; and (b) at least 0À5% by weight of (a) of a bisphenol where R is up to C 8  alkyl and R 1  is C 4-12  t-alkyl. The tetrol compounds (i) are described in U.S. Specification 2,979,528 and their use with polyamides in Specification 1,226,905; use of the tetrols (i) chain extended with (ii) in polyamides is described in German Offenlegungschrift 2,251,280, The presence of the additional component, (b) according to the present invention is stated to mitigate the formation of nubs in the fibre. Conventional additives such as antioxidants, stabiliziers, delustrants, dye assists and colourants may also be incorporated in the fibres. Examples illustrate nylon 6 and 66 fibres containing the specified combination of additives (a) being derived from a tetrol (i) of M.W. 12,500 wherein A is -C 2 H 4 - and a + b + c+d/w+x+y+z=6/4, extended with (ii) 4,41- methylene-bis-(cyclohexyl) isocyanate or dimethyl terephthalate and (b) is 4,4<SP>1</SP>-butylidene- or -heptylidene-bis-(6-t-butyl or 6-amyl mcresol).
Patent GB-1202686-A (GB)
Title: Siloxane coating for paper containers
IPC: C08K5/09
Filed: 1969-02-20
Abstract: 1,202,686. Coating paper. DOW CORNING CORP. 20 Feb., 1969 [13 March, 1968], No. 9164/69. Heading B2E. [Also in Division C3] Kraft paper is coated with a composition comprises a mixture of a curable polydimethylsiloxane of viscosity at least 100 cS/25‹ and a fatty acid having 10-25 C atoms and not more than 1 C=C group per molecule, the acid amounting to 15-60 wt. % of the mixture. The polysiloxane may be cured by a free radical generator, e.g. benzoyl peroxide, or by ionizing radiation, e.g. electrons or gamma rays or by reaction of terminal hydroxyl or hydrolysable groups or vinyl groups with Si-H-containing siloxanes, alkyl polysilicates, or alkoxy-, acyloxy- or tri-oximato-silanes or other hydrolysable silanes. The mixture may be applied in solution or in aqueous emulsion. In Examples aqueous emulsions are prepared containing a hydroxyl-terminated polydimethylsiloxane of 25000 cS/25‹C and minor amounts of a similar polysiloxane of 35 cS/25‹C, an ethyl polysilicate, C 2  C1 6 , toluene, polyvinyl alcohol, triethanolamine and acetic acid and varied amounts of isostearic, oleic or stearic acid; capric, myristic, lignoceric and gadoleic acids are also used; dibutyltin dilaurate is added before use.
Patent GB-1039230-A (GB)
Title: Battery casing construction and method of manufacture thereof
IPC: H01M50/171
Filed: 1965-03-04
Abstract: 1,039,230. Batteries. GLOBE-UNION Inc. March 4, 1965 [May 6, 1964], No. 9194/65. Heading H1B. The cover of an accumulator has channels engaging projections on the case and the channels contain a plastic sealing material and also an adhesive material, the latter taking the mechanical stresses of the joint.
Patent GB-635405-A (GB)
Title: Improvements relating to elevators of the continuous conveyor type
IPC: B65G21/02
Filed: 1948-04-01
Abstract: 635,405. Endless elevators. BUTTERLEY CO., Ltd., and FOSTER, F. H. April 1, 1948, No. 9212. [Class 78 (i)] The upward and downward runs of an endless elevator are each enclosed in a casing built-up from main and connecting sections which spigot into one another and are enclosed by plates secured to the main sections. In the embodiment shown, each casing C, D is built-up from a plurality of sections, Fig. 4, which are secured to one another by connecting members, Fig. 5. Each section comprises four pipes a connected together by plates b or by a single sheet metal enclosure b<SP>1</SP>, Fig. 6, welded to the pipes, whilst each connecting member consists of four short lengths of metal pipe c of slightly less external diameter than the bore of the pipes a, each with a collar d which serves as a distance piece to limit the extent to which the pipes c can be pushed into the pipes a, the collars being interconnected by welded plates e. Lugs f on adjacent collars in one casing are connected to corresponding lugs in the other casing by tie pieces g. The plates b or b<SP>1</SP> extend beyond the pipes a a distance equal to half the length of the collars d. The head h and base i of the elevator are spigoted into the pipes a at the top and bottom of the casings.
Patent GB-714925-A (GB)
Title: Process for the heat treatment and/or reaction of pulverised solid material with gaseous or vaporous media
IPC: C10B49/00
Filed: 1951-04-20
Abstract: Pulverulent solid materials which are to be subjected to heat treatment and/or reacted with hot gaseous or vaporous media are injected tangentially through an inlet 15 together with at least part of the hot gaseous or vaporous media into an externally heated reaction chamber 1 of circular cross-section 7 in such a way that the <PICT:0714925/III/1> <PICT:0714925/III/2> solid material and the hot gaseous or vaporous media follow a helical path around the heated interior walls of the chamber before being discharged into a separating chamber 3, the solid and gaeeous or vaporous components of the mixture being caused to travel at different velocities.  The treated or reacted solid material is removed through an opening 21 and the gaseous or vaporous media leave by a pipe 25 after passing through a cyclone separator 23.  As shown in Fig. 1, the chamber 1 has a double frusto-conical form and a second stream of the gaseous or vaporous media may be introduced through line 20.  The chamber 1 is heated by annular flues 6 into which a combustible gas and air are introduced through nozzles 8 and pipes 9 respectively.  In a modification (Fig. 6) a conical tubular member 60 is used and the solid material is injected through a line 66 and the gaseous or vaporous media through a plurality of openings 65.  The treatment and/or reation may comprise the low temperature carbonisation or partial oxidation of coal, the calcining of limestone to produce lime or the reduction of iron ores to iron.  In the low temperature carbonisation of coal and the calcining of limestone the hot gaseous or vaporous media consists of hot combustion products of a fluid fuel and air.
Patent GB-121612-A (GB)
Title: Improvements in and relating to Ignition Dynamos.
Inventor: MASON CHARLES THOMAS
IPC: H02K21/38
Filed: 1917-06-28
Abstract: 121,612. Mason, C. T. June 28, 1917. Inductor machines. - In an ignition magneto in which a motor member is arranged to shift the flux due to permanent magnets so as to generate an electromotive force in a normally stationary generating winding, the high tension conductor leading to the spark-plug is supported by the side plate of the magneto casing which is opposite the space between the arms of the magnets. The conductor 14<a> passes through an insulating bushing in the side plate 7 and is connected to the overlapped end 17<a> of the safety spark-gap 18<a>, or the conductor 14<a> may be connected directly to the generating winding instead of through the member 18<a>. Insulating tape 21<a> may be lapped round so that the conductor 14<a> and generating winding form a uraitary structure. The side plates 6, 7 are formed with overlapping edges which engage with the edges of the magnets or with a cover 1 surrounding the magnets, the plates being secured together by bolts and being secured to the base by screws 4. Specifications 8128/13, 8964/13, 106,466, and 121,106 are referred to.
Patent GB-551498-A (GB)
Title: Improvements in or relating to electron multipliers
IPC: H01J43/30
Filed: 1941-07-23
Abstract: 551,498. Electron-multipliers. BOSCH, F. J. G. VAN DEN, and VACUUM-SCIENCE PRODUCTS, , Ltd. July 23, 1941, No. 9340. [Class 39 (i)] In electron multipliers, having a number of secondary emitting electrodes and a collecting electrode carried by a number of supports common to all as described in Specification 540,893, one. of the secondary emitting electrodes 18 is arranged on the side of the collector electrode 17 away from the cathode, and is connected to the output circuit. According to the Provisional Specification, the collecting electrode may be the output electrode, in which case an additional electrode at higher potential is provided preferably on the cathode side of the collecting electrode. Specifications-516,621 and 531,541 are referred to in the Provisional Specification.
Patent GB-696923-A (GB)
Title: Anchorage for wire bundles in particular for pre-stressed concrete
IPC: E04C5/12
Filed: 1951-04-23
Abstract: 696,923. Covering by drawing. HUTTENWERK RHEINHAUSEN AKT.-GES. April 23, 1951 [Dec. 1, 1950; Jan. 17, 1951], No. 9385/51. Classes 83 (ii) and 83 (iv). [Also in Group X] A bundle of wires for prestressing concrete are anchored in a gripper supporting them when simultaneously tensioned against a permanent abutment, the wires being clamped radially at least by permanent deformation of the gripper and so disposed that the clamped portions extend axially. A gripper 2 accommodates a number of wires 1, each in an individual bore in a slightly thickened portion which tapers into a threaded end to be attached to stretching mechanism. On being drawn through a disc 5 the gripper becomes cylindrical and the wires are subjected to pressure from all sides. The wires which may be rectangular in cross section may be located in an annular groove surrounding a core which may have been hardened by electric heating. The core may comprise a bolt which with the inner surface of the bore may be ribbed, corrugated, &c. to produce maximum friction. An axial bore through both head and bolt provides for the insertion of bitumen into the groove and concrete after the structure has been prestressed.
Patent GB-842284-A (GB)
Title: Improvements in and relating to the production of spheroidised particles
IPC: B01J2/16
Filed: 1958-03-24
Abstract: 842,284. Granulating metals. SOUTH AFRICAN IRON & STEEL INDUSTRIAL CORPORATION Ltd. March 24, 1958 [April 4, 1957], No. 9394/58. Class 82(2) Irregularly shaped solid particles of oxidizable metals or alloys, e.g. of ferrosilicon, are rendered smooth and rounded by passage through a high temperature reverse flame, in which an annular fuel gas zone surrounds a zone of air, or air enriched with oxygen, or a mixture thereof with a small proportion of combustible gases. The particles may be fed into a burner comprising a nozzle 5 surrounded by a coaxial annular nozzle 7, the particles being induced from a supply pipe 3 into a Venturi 4 by a stream of oxygen enriched air and discharged therewith through the nozzle 5, whilst a combustible gas is fed to the nozzle 7 through pipe 6. The burner is mounted in the top wall 8 of a furnace 9 at the lower end of which the rounded particles are received into a water bath 14. In order to prevent the particles from sticking to the furnace wall heating or cooling gas is fed into the furnace through an annular slot 10 and through slots communicating with annular conduits 11, 12. Alternatively the furnace may be lined with polished stainless steel or vitreous enamelled steel. In an alternative apparatus, Fig. 3 (not shown), the product is collected in the dry state in a cyclone separator.
Patent GB-576024-A (GB)
Title: Improvements in breech-closing means for self-loading firearms
IPC: F41A3/82
Filed: 1943-06-11
Abstract: 576,024. Automatic smallarms. TRIGGS, W. W. (Western Cartridge Co.). June 11, 1943, No. 9440. [Class 119] The mainspring 56 of a gas-operated smallarm is housed rearwardly in a detachable tube 52, which is disposed beneath a rib 46 on the receiver 26 between the side of the receiver and the stock 25. At its rear end the tube is loosely mounted in a socket 49 in a lug 48 on the receiver, or by means of a loose stud-and-slot connection. The rod 57 of the spring is dismountably supported at its front end in a socket 59 in the cross-head 35 of the gasoperated action-slide 29 by which the breechbolt 31 is actuated.
Patent GB-365415-A (GB)
Title: Improvements in pose-reflecting systems for photographic apparatus
IPC: G03B17/53
Filed: 1931-03-28
Abstract: 365,415. Photographic portraiture apparatus. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(Simjian, L. G. ; 1329, Chapel Street, New Haven, Connecticut, U.S.A.) March 28, 1931, No. 9499. [Class 98 (ii).] Photographic portraiture apparatus is characterized by a camera, one or more posereflecting mirrors, and a movable imagedeflecting mirror with means arranged to guide this into a position to deflect to the camera the image seen by the sitter in the pose-reflecting mirrors. As shown, located on opposite sides of the central mirror 15 are side mirrors 16, 17, while in front of the mirror 15 is a concave lens 18 mounted in the shield 19, 20. The mirror 15 is provided at the top and bottom with bars 23 provided with trunnions 24 bearing in horizontal arms 25 projecting from pairs of guide-plates 26, 27. The mirror 15 is rotatable to permit the sitter to view himself in profile in either of the mirrors 16, 17 through the openings 21, 22. A rectangular imagedeflecting mirror 30 is provided at the top and bottom with guide-shoes 31 having studs 32 and sliding between the pair of guide-plates 26, 27. Arms 33, 34 secured to a shaft 35 operated by links 37, 38 have bifurcated ends 36 engaging the studs 32. Movement of the mirror 30 through the central position deflects the image into the camera 29. In a modification the mirror 30 is moved in a curved path and is provided with pairs of parallel arms. A prism is also provided to deflect into the camera the rays deflected by the mirror 30. In another modification a pair of complementary sector-shaped image-deflecting mirrors are rotatable obliquely into the sitter's line of vision to the viewing mirror.
Patent GB-535640-A (GB)
Title: Improvements in circular weaving looms
IPC: D03D37/00
Filed: 1940-05-30
Abstract: 535,640. Circular looms. SAINT FRERES SOC. ANON. May 30, 1940, No. 9506. Convention date, July 18, 1939. [Class 142 (ii)] The heddles c<SP>1</SP>, c<SP>2</SP> of a circular loom are raised and lowered by springs h<SP>1</SP>, h2 and cams j<SP>1</SP>, j2 on shafts i arranged at intervals round the loom. The cams act on levers k<SP>1</SP>, k<SP>2</SP> the ends of which are hooked to co-operate with spring pawls s<SP>1</SP>, s<SP>2</SP>. When these pawls are lowered they successively lock the levers and hold the warp threads down to expose the shuttle. When the pawls are raised they successively release the levers and the healds are operated normally. The shaft r carrying the spring pawls can be rotated by hand or by a weft stop mechanism.
Patent GB-918665-A (GB)
Title: Device for supporting and facilitating the depositing of a pile of sheets
Inventor: SEEL HOWARD JACK
IPC: B65H3/32
Filed: 1960-03-17
Abstract: 918,665. Feeding sheets. HARRIS-INTERTYPE CORPORATION. March 17, 1960, No. 9531/60. Addition to 772,679. Class 100 (1). The auxiliary sheet-pile support, described in the parent Specification, adapted to be inserted into a main sheet pile and to be withdrawn, when the pile is depleted, to allow the depleted pile to rest on a new main sheet pile, is modified in that instead of a single pallet the support comprises a number of individual rodlike members each hollow and provided with means for introducing compressed air thereinto and for discharging such air therefrom. As shown, a number of separate hollow rod-like members 10 each connected to an air supply by a readily-detachable hose 20 is inserted below a partially depleted pile. The rod-like members may be cylindrical or oval-shape, tapered at the front ends for insertion into a pile, and the airdischarge openings therein may have ball valves fitted, as disclosed in the parent Specification, so that the weight of the sheet pile will open the valves.
Patent GB-826594-A (GB)
Title: Automatic poultry neck breaking, neck skin stretcher, and head removing machine
Inventor: O'DONNELL CHARLES ROBERT
IPC: A22B3/08
Filed: 1958-03-25
Abstract: 826,594. Severing poultry heads. JOHNSON CO., G. March 25, 1958, No. 9566/58. Class 28 (2). Poultry necks are broken by the pull of a conveyer 19 on the necks moving in a narrowing groove of staggered rollers 20 after which the head is retarded by a spring 23 to stretch the neck skin before presenting it to a severing wheel 21.
Patent GB-1489487-A (GB)
Title: Method of manufacturing cathode-ray tubes
IPC: H01J9/227
Filed: 1975-03-07
Abstract: 1489487 Luminescent screens PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 7 March 1975 [11 March 1974] 9575/75 Heading H1D [Also in Division G2] A method of manufacturing a three colour c.r.t. with means for producing three beams and a colour selection electrode (shadow mask), the luminescent areas being smaller than the corresponding apertures in the selection electrode comprises (a) applying photosensitive layer 13, which when exposed to actinic radiation becomes insoluble in a solvent but removable by an etchant, (b) exposing to the radiation except areas 14 assigned to areas of a first colour, (c) developing by dissolving and removing unexposed areas by the solvent, (d) applying a second photosensitive layer 15 containing luminescent material of the first colour and which becomes insoluble on exposure to actinic radiation but is not attacked by the etchant, (e) exposing the entire layer 15 to radiation, (f) removing exposed areas of layer 13 with corresponding regions of layer 14 by the etchant, and (g) repeating for the remaining phosphors. Step (e) exposure is preferably through the support. Residues are removed by heating. Layers 13 and 15 preferably include photosensitive p.v.a., respectively sensitized by ammonium dichromate and a polydiazonium (e.g. tetradiazonium) compound. The latter may be a condensation product of paraphenylaminobezene diazonium nitrate and paraformaldehyde. Other condensate reactants are exemplified. In step (f), a decomposition reaction between the etchant (e.g. an aqueous 4% by wt. solution of hydrogen peroxide) is catalysed by the sensitizer of layer 13, but not that of layer 15. Concentrations of component parts in the fabrication are detailed and also exposure times. The green, red and blue phosphors may be respectively ZnCdS : Cu; Yttrium oxysulphate : Eu and ZnS : Ag.
Patent GB-864200-A (GB)
Title: process and apparatus for the production of direct positives as by the silver salt diffusion process
IPC: G03D9/00
Filed: 1959-03-19
Abstract: 864,200. Photographic processes and apparatus. AGFA A.G. March 19, 1959 [March 20, 19S8], No. 9589/59. Class 98(2) Negative and positive materials as of the silver salt diffusion transfer process, after wetting with developing liquid and bringing into contact, are separated before or after drying while moving in a common plane, by forces which act in such plane but in different directions. As shown the materials are introduced between rollers 3, 5 the former of which is driven by roller 4 but the latter is stationary or rotating at a lower speed, with the positive material uppermost and this is conveyed by rollers 6, 7 into a drying passage formed between heated roller 8 and outer casing 10, to emerge above roller 6. A stripping bar may replace roller 5. The stripping means may be arranged to follow the drying means. Specification 879,995 is referred to.