baber/WOPTO huggingface dataset:
Patent GB-973168-A (GB)
Title: Improvements in roving package winding apparatus
IPC: D01H1/36
Filed: 1962-02-27
Abstract: 973,168. Building roving packages with curved ends. INSTITUTE OF TEXTILE TECHNOLOGY. Feb. 27, 1962 [April 25, 1961], No. 7597/62. Heading D1D. In a roving frame builder mechanism the length of each layer of roving is varied in a non- linear manner with respect to the bobbin diameter so that a roving package with curved end profiles is produced. Reversal of the roving lay is effected in usual manner, by 180 degrees rotation of the builder dog 23 which rotation also results in the movement of the shifter rack 37 by means of gears 31, 32, 33, 34, 35, 36. In Fig. 2 this rack movement is used to move cam followers 54, fixed thereto, relative to a fixed flat cam 44. The movement of these cam followers is then hydraulically transmitted by the network 58 to brackets 49, 50 which carry the usual camming surfaces 16, 17 mounted on the bobbin rail 11. The brackets 49, 50 are biased apart by coil springs 52, 53. By choosing a suitable shape for the camming surfaces 45, 46 the relationship between bobbin diameter and length of lay is made non-linear and a curved end is produced on the package. In a further form the cam is fixed to the rack 37 and the linkage between the cam followers (which take the form of rollers) and the brackets supporting the camming surfaces 16, 17 is mechanical. In Fig. 4 the camming surfaces 16, 17 are, inknown manner, formed on internally threaded brackets 14, 15 mounted on oppositely threaded portions of the builder shaft 18. The usual 1:1 gearing between the rack 37 and shaft 18 is replaced by a linkage which comprises a half circular cam 105 mounted eccentrically on a gear 106 engaging the teeth 36 on rack 37, a line 109 attached to and engageable with the surface 108 of cam 105 and a chain 110 arranged so that movement of rack 37 winds up line 109 and causes the shaft 18 to be rotated by the chain 110 and gears 111, 41, 42, the chain being held taut by a weight W. A non-linear relationship between bobbin diameter and length of lay is thus achieved and bobbins with curved end profiles produced. Specification 921,375 is referred to.
Patent GB-185437-A (GB)
Title: Improvements in swash-plate driving mechanism for internal combustion engines
IPC: F02B75/28
Filed: 1921-03-10
Abstract: 185,437. Collinson, D. L. H. March 10, 1921. Link-work.-Engines having cylinders parallel to a central shaft drive through swash-plate mechanism comprising an inclined disc 7 mounted upon which are channel-shape members 5 housing plates 6 bearing against the disc 7. The piston rod 3 is connected to the member 5 by a universal joint carrying a slipper 9 working on a guide 10. A modified construction is described in which the universal joint is dispensed with, the piston rods having ball-ends which engage the members 5, one of the members carrying a roller oscillating on an arc-shape guide. The engine cylinders may each contain two oppositely moving pistons, a swash-plate being disposed at each end of the engine. Two sets of cylinders may be disposed between three swashplates:
Patent GB-416428-A (GB)
Title: Improvements in centrifugal or turbine pumps
IPC: F04D1/08
Filed: 1933-03-13
Abstract: 416,428. Centrifugal pumps. DICK, W. A., 18, Beach Grove, Durban, Natal, South Africa. March 13, 1933, No. 7626. [Class 110 (i).] The rotor of a centrifugal pump comprises rings of concentric blades 11, 12. The rotor rotates in the direction of the arrow X and the fluid passes through an opening 16 between the inner ring of blades 11 and into chambers 7. Part of the fluid leaves the other end of the chambers 7 through a discharge 13 and part through an opening 17. The part leaving through the discharge 13 passes to the next stage. The part leaving through the opening 17 increases by injector action the flow from a preceding chamber 7. The openings 17 may be shaped as nozzles. Diffuser vanes 9 are arranged between each stage.
Patent GB-1442726-A (GB)
Title: Integrated circuit
IPC: H01L21/00
Filed: 1974-02-20
Abstract: 1442726 Integrated circuits INTERNATIONAL BUSINESS MACHINES CORP 20 Feb 1974 [12 March 1973] 7649/74 Heading H1K Dielectric isolation between device-containing Si pockets of an integrated circuit is provided by a dielectric-surfaced substrate 42 supporting the Si layer from which the pockets are formed and by regions 51 of SiO 2  extending through the layer and laterally surrounding the pockets. The SiO 2  regions 51 are formed by selective oxidation of the Si layer before the substrate is applied and while the layer is still located on a subseuqently-removed body of highly conductive Si, the upper surface of the regions 51 being arranged to be substantially coplanar with the surface of pockets by the selective removal of part of the thickness of the to-beoxidized regions of the Si layer prior to oxidation. After application of the substrate 42 the highly conductive Si body is removed by preferential anodic etching, and devices are formed in the pockets, e.g. by diffusion. The substrate may be entirely made of a dielectric material such as SiO 2  or alumina, but in the form shown it comprises a polycrystalline Si layer 42 separated from the pockets by a layer 39 of alumina or silicon oxide or nitride. Modifications are disclosed (Fig. 5, not shown) in which interconnection between adjacent pockets may be achieved by buried conductors, e.g. of Pt, Mo, W or polycrystalline Si, provided at the interface between the pockets and the substrate 42. Such buried interconnections may be multilayered. In further modifications (Figs. 7 and 8, not shown) a supply voltage may be provided to the lower surface of one or more pockets (e.g. to the collectors of bipolar transistors) via the doped polycrystalline substrate, access to the pockets being attained through apertures in the dielectric layer at the pocket/substrate interface either directly or via buried conductors. The structure illustrated contains, in adjacent Si pockets, complementary bipolar transistors and a resistor 38. Other disclosed configurations include a pair of NPN bipolar transistors and complementary IGFETs.
Patent GB-1455521-A (GB)
Title: Pushbutton keyboard system
IPC: H01H13/702
Filed: 1974-02-20
Abstract: 1455521 Retractive switches TEXAS INSTRUMENTS Inc 20 Feb 1974 [21 Feb 1973] 7658/74 Addition to 1395647 Heading H1N A keyboard switching panel substantially as in Specification 1,395,647 has at least one set of conductive contact members with more than a single pole contact. A central fixed contact staple may be cut away to provide two contacts which are connected to different contact paths on the reverse of the insulating baseboard; alternatively at least two rivets may form the fixed contacts. The connection to the actuatable conductive elements may comprise annular shoulders formed by respective apertures in a sheet of conductive material overlying the insulating baseboard.
Patent GB-1455385-A (GB)
Title: Devides and arrangements for setting the position of a rotatable body
IPC: H01F19/04
Filed: 1974-02-20
Abstract: 1455385 Couplings SIEMENS AG 20 Feb 1974 [7 March 1973] 7691/74 Heading F2U [Also in Division H1] A shaft 1 engages in, and so can rotate a plate 3 through a triangular pyramid 6 with a rounded tip at the end of shaft 1 which is fitted in a recess 2 of the plate 3, the recess 2 having a triangular pyramidal shape. As described the inductance of a pot core coil is adjusted by rotation of one half 9 of the pot core, on which half the plate 3 engages to allow rotation of the core half 9 by shaft 1. The pyramidal faces 4 of the recess 2 are at a smaller angle to the axis of the plate than are the faces 10 of pyramid 6, so that engagement only occurs at a region 7. This allows slight angular misalignment to occur between the axes of shaft 1 and plate 3. A spring bracket 8 presses the two halves of the pot core coil together.
Patent GB-1404310-A (GB)
Title: Electrical switches
IPC: H01H13/02
Filed: 1972-01-21
Abstract: 1404310 Switch actuators; casings OTEHALL Ltd 30 Aug 1972 [21 Jan 1972] 7712/75 Divided out of 1404309 Heading H1N In an electric switch in which a plunger 8 or rockable actuating member is slidable within a slot 7 in the side of the casing 1 and retained by a casing side plate 2 a boss 10 on the side plate 2 is engaged within the slot 7 to prevent any undesirable narrowing. A projection 13a on the side plate may also engage within the end of a recess for locating and centring an actuator arm 11.
Patent GB-754244-A (GB)
Title: An apparatus for the separation of flour and bran
IPC: B07B1/20
Filed: 1954-03-17
Abstract: 754,244. Sifting apparatus. MIAG MUEHLENBAU UND INDUSTRIE, GES. Addition to 717,220. March 17, 1954 [March 18, 1953], No. 7716/54. Class 117. The sifting apparatus of the parent Specification is modified by the provision of bars f, i, parallel to the driving shaft m and mounted thereon at spaced intervals. The bars i are adjustable about an axis parallel to the shaft and the beater blades l are secured to the bars f. A disc k closes, at the upper end, the space occupied by the bars and an auxiliary conical guide member c is secured to the shaft between the bars and the lower guide member q.
Patent GB-1189598-A (GB)
Title: Improvements in or relating to Process for the Production of High Molecular Weight Linear Unsaturated Polyesters.
Inventor: LAKE ROBERT DONALD
IPC: C08G63/78
Filed: 1968-02-16
Abstract: 1,189,598. Unsaturated polyesters. KOPPERS CO. Inc. 16 Feb., 1968, No. 7844/68. Headings C3P and C3R. Linear unsaturated polyesters of MW above 2500 are prepared by condensing, at 190- 225‹ C., a mixture of an α-# unsaturated dicarboxylic acid and phthalic acid (mole ratio 2: 1 to 1: 2) with 3-5 mole per cent excess of a dihydric alcohol, the reaction mass being sparged with an " inert " gas at the rate of 0À06 cubic feet/minute/gallon (U.S. total reactants or greater, to remove water of condensation and also to agitate the reaction mass. Suitable dicarboxylic acids are maleic, fumaric itaconic, mesaconic or citraconic; suitable dihydric alcohols are ethylene-, propylene- or diethylene glycols; suitable " inert " gases are nitrogen, carbon dioxide and helium. Example II indicates the use of inhibitors and catalysts which are hydroquinone, 2: 5 di-t-butyl tin diacetate and anhydrous magnesium acetate. Example VIII indicates formation of crosslinked thermosetting resin from the polyester and styrene using cobalt naphthenate and methyl ethyl ketone peroxide as catalysts.
Patent GB-942213-A (GB)
Title: Electrostatic printing tube
IPC: H01J31/06
Filed: 1961-03-03
Abstract: 942,213. Cathode-ray tubes. A. B. DICK CO. March 3, 1961 [March 14, 1960], No. 7890/61. Heading H1D. In an electrostatic recording tube in which a plurality of wires 34 extending through the dielectric face plate 32 are successively caused to discharge through a dielectric tape 36 by the action of a scanning electron beam, a thin dielectric coating 40 penetrable by the beam, but not by secondary electrons, overlies the inner ends of the wires 34. A thin conductive coating 44 biased to collect secondary electrons is provided over the dielectric coating 40. The dielectric coating 40 may be formed by a deposit of aluminium which is fired to form an oxide.
Patent GB-1315918-A (GB)
Title: Strip transmission line structure
Inventor: HILL Y
IPC: H05K3/42
Filed: 1972-02-21
Abstract: 1315918 Strip lines INTERNATIONAL BUSINESS MACHINES CORP 21 Feb 1972 [19 March 1971] 7893/72 Headings H1R and H1W A strip transmission structure comprises a central dielectric layer 14 carrying on its surfaces orthogonal arrays 15, 16 of strip conductors, and outer dielectric layers 10, 12 carrying ground planes 11, 13 on their outer surfaces. The dielectric constant of the inner layers is greater than that of the outer layers, e.g. the inner layers may be made of epoxy glass or polyimide and the outer ones of fluorinated ethylene propylene or polythene. The conductive parts are of copper. Several such structures may be stacked one above another and provided with through conductors e.g. of the form indi- Gated at 17, 18, which make contact with the ground planes or with one of the line conductors. Components may be mounted on one side of such a stack and connections between terminals 18 made on the other.
Patent GB-307833-A (GB)
Title: Improvements in Load Regulating Systems in Electric Installations
IPC: H02H3/033
Filed: 1929-03-11
Abstract: 307,833. Telefonaktiebolaget L. M. Ericsson. March 14, 1928, [Co?zvention date]. Regulation, automatic; equalizing load on generator. - In installations in which the load is regulated to a prescribed maximum bv periodically switching on and off a part of the installation under the control of an ammeter or wattmeter, part of the installation is divided into sections successively switched off or on under the master control on the occurrence of increasing overloads or reduced loads, the section last switched off being periodicaly switched on and off to effect the regulation. 'Two wheels 11, 13 of a differential gear may be driven respectively by the meter 10 and by clockwork moving at a speed corresponding to the desired load, the third wheel 12 actuating through a toothed wheel 16 and a pawl 17 a mercury interrupter 8. A water heater 3 and a heat-accumulating stove 4 are connected to three poles 5 - - 7 of the interrupter 8 and are successively switched off when a large overload of lamps 2 is switched on. During the regulation, the heater 3 or stove 4 is periodically switched on and off, the loading being respectively above and below the prescribed load with the heater or stove on and off. The interrupter is pivoted at 9 and its downward movement is limited by a stop 20. The pawl 17 is spring- controlled and its movement is restricted by a stop 19. The heaters may be further subdivided and may be controlled by two or more mercurv interrupters moving about a common axis. Sections of a water heater may be successivelv switched on, or sections of a heater in series may be successively short-circuited.
Patent GB-1161775-A (GB)
Title: Electromagnetic Tooth Clutch
IPC: F16D27/118
Filed: 1967-02-20
Abstract: 1,161,775. Positive clutches. BENDIX CORP. 20 Feb., 1967 [7 March, 1966], No. 7982/67. Heading F2C. In a spring-released electromagneticallyengaged positive clutch in which driving and driven members 18, 20 have peripheral facial teeth 26, 28 which are interengaged by axial movement of the member 20 slidably splined on a driven spider 24, initial energization of a stationary coil 14 axially attracts a secondary armature 30 to overcome the bias of the clutch release springs 36 after which the driven member 20 is attracted to freely engage the facial clutch teeth 26, 28, the release springs 36 serving to immediately release the clutch on deenergization of the coil 14. The clutch teeth have a tooth angle approaching tooth locking angle to prevent separation of the clutch teeth under maximum torque load.
Patent GB-1385901-A (GB)
Title: Anthraquinone disperse dyes
IPC: C09B1/14
Filed: 1971-03-27
Abstract: 1385901 Water insoluble anthraquinone dyestuffs YORKSHIRE CHEMICALS Ltd 27 March 1972 [27 March 1971] 7993/71 Heading C4P  The invention comprises water insoluble anthraquinone dyes having the general formula wherein A is an anthraquinone radical, R<SP>1</SP> is a direct link or a bridging atom or group, R<SP>2</SP> is an alkylene, arylene or aralkylene group, R<SP>3</SP> is an oxygen or sulphur atom and R<SP>4</SP> and R<SP>5</SP> is alkyl or aryl groups and the alkyl, aryl, alkylene, arylene, aralkylene groups and the anthraquinone radical may be further substituted but not by sulphonic or carboxylic acid groups. They are prepared by condensing an anthraquinone compound of the general formula with one mol. of a compound R<SP>8</SP>-CO-N(R<SP>4</SP>)R<SP>5</SP> wherein R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP>, R<SP>5</SP> and A are as above and R<SP>8</SP> is Cl or Br in presence of an excess of the latter or in an inert organic solvent, preferably at 60-140‹ C. in presence of an acid binding agent. The dyes give pink, orange, red, blue and violet shades on cellulose acetate, polyamides, polyesters and polyacrylonitrile fibres.
Patent GB-1113086-A (GB)
Title: Apparatus for dispensing and measuring small quantities of liquid
IPC: B01L3/02
Filed: 1967-02-20
Abstract: 1,113,086. Delivering measured quantities of liquid. V. MORRILL. 20 Feb., 1967, No. 8010/67. Heading B8N. [Also in Division G1] Apparatus for dispensing accurately measured small amounts of liquid comprises a chamber 23 for holding the liquid and having inlet and outlet ducts 42, 34, a flexible filament 43 which extends through the inlet duct and a feeding mechanism 48, 49 for feeding measured lengths of the filament through the inlet duct into the chamber so that a volume of liquid equal to that of the length of the filament fed is expelled through the outlet duct. The filament, such as a fine wire of stainless steel, is wound on a pair of drums 48, 49 the drum 48 being contained within the liquid chamber 23. Both drums are mounted on a shaft 50 which is rotated, via gears 81, 79, 78, by means of a hand-wheel 75. The wire filament is tensioned by means of pulley 68 mounted in a bracket 69 which is loaded by a spring 71. As the wire moves from one pulley to the other, the bracket, which is connected by pins 70 to a slide 53, is moved correspondingly by means of a screwed-shaft 56 coupled to the gear drive. A counter is provided in the apparatus which may be used for checking the capacities of pipettes or capillary tubing.
Patent GB-177691-A (GB)
Title: Improvements in means for securing globes, shades and the like to incandescent gas burners and the like
IPC: F21V37/00
Filed: 1921-03-15
Abstract: 177,691. Jones, A. C., (trading as Messenger & Sons), and Stubbs, S. P. Addition to 168,129. Globe and shade holders.-In incandescent gasburner fittings of the kind described in the parent Specification, one of the radiating or depending arms c<1> for supporting the globe or shade d is made in the form of a pair of parallel tubes c<2>, c<3>. The gas passes from the pendent tube a down the tube c<2> to the body g of the gas supply controlling- tap h and thence up the tube c<3> to the burner b. The two single tubes c<2>, c<3> may be replaced by a strip of bar metal leaving two longitudinal passages extending therethrough.
Patent GB-1108526-A (GB)
Title: Heald frames
IPC: D03C9/06
Filed: 1966-02-24
Abstract: 1,108,526. Heald frames. GROB & CO. A.G. 24 Feb., 1966 [15 April, 1965], No. 8069/ 66. Heading D1E. A heald rail 2 is connected to the stave 1 by a spring loaded bolt 6 whose head 10 is located in a block 5 that is withdrawable from the stave 1 through a side aperture 12 to allow the rail and bolt assembly to be removed. The bolt 6 is adjustable through a hole 20 in the stave and may be secured in position by a bolt 22.
Patent GB-837247-A (GB)
Title: Process for producing a folded rim on a container made of thermo-plastic material, as well as an apparatus for carrying out this process
IPC: B29C57/12
Filed: 1958-03-13
Abstract: 837,247. Producing folded rims on plastic containers. KERKE, K., VAN DE., and KERKE, D. VAN DE, March 13, 1958 [March 21, 1957], No. 8070/58. Class 87(2). [Also in Group XVII] The upper rim of a plastic container, e.g. of polyvinyl chloride, has a horizontal flange on which a lid of similar material is heat sealed, the flange then being folded back with simultaneous cooling while it is still soft. The container resting on a table 29 is movable verti-. cally through a supporting ring 31 for the flange and above the table are a vertically movable ring or electrode 8 and a cooling ring 15 the inner diameter of which is smaller than the outer diameter of the container flange. In operation, the cooling ring is movable downwards until it rests upon the stop ring 32 on supporting ring 31, the sealing ring 8 being such that it moves on through the cooling ring in order to seal the container. The upward movement of the sealing and cooling rings, when the former is again above the latter but before the latter has left the supporting ring, causes the release of table 29 which has been held against the action of a spring 23 by a ball-lock (not shown) and the container with the flange which is still soft snaps into the cooling ring. This cooling ring consists of a number of segments 16 which are forced radially outwards against an elastic member as the flange of the container is folded back. The elastic member may consist of latex foam or plastic foam, or may be formed by an elastic cooling pipe which then at the same time effects the cooling of the segments.
Patent GB-1360307-A (GB)
Title: Foam-laminated fabric and process for manufacturing the same
IPC: D06N3/04
Filed: 1972-02-22
Abstract: 1360307 Foam coated fabric BURLING- TON INDUSTRIES Inc 22 Feb 1972 [23 Feb 1971] 8135/72 Addition to 1273468 Heading B2E A foam-laminated fabric is produced by applying to one side of a textile fabric a foamed or foamable polymeric composition including a cross-linkable acrylic polymer and a plasticizer therefor, if necessary foaming the foamable polymeric composition, gelling the foamed polymeric composition, impregnating the textile fabric and the gelled foamed polymeric composition with a cross-linkable resin, and thereafter heating the foam-coated textile fabric to cure the resin. The textile fabric may be woven or knitted or non-woven and may be made of cotton, wool, sisal, jute, linen, silk, regenerated cellulose rayon, polynosic rayon, cellulose esters, polyacrylonitrile, acrylonitrilevinyl chloride polymers, polyamides, polyethylene, polypropylene, polyesters, rubber, synthetic rubber, glass. The acrylic polymer may be a styrene-acrylic acid copolymer and may be internally or externally plasticized. Foams may be applied by roll, roller coating, casting, knife over table and doctor blade over tables. Foams may include pigments or dyes. The exposed surface of the foam may be printed on or embossed. The cross-linkable resin is preferably an aminoplast applied from aqueous solutions or dispersions optionally containing softeners, water repellant silicone, and a catalyst for curing the cross-linking resin. After the resin has been cured, the fabric may be subjected to compressive shrinkage. The completed fabric may also be treated with soil release coatings. The fabric may be made into drapes by hemming a length thereof at the top, bottom and side edges, reinforcing the top edge with a strip of stiffening material and pleating the top hem. The fabrics may also be used for slip covers, upholstery, tablecloths and wall coverings.