baber/WOPTO huggingface dataset:
Patent GB-1168256-A (GB)
Title: New Phosphite Triesters and their use in Stabilising Rubbers
IPC: C08K5/526
Filed: 1966-09-23
Abstract: 1,168,256. Phosphite ester derivatives of substituted hydroquinones. UNIROYAL Inc. 23 Sept., 1966 [8 Nov., 1965], No. 42441/66. Heading C2C. [Also in Division C3] The invention comprises a phosphite triester of the general formula (AO)xP(OB)y wherein B is a hydrocarbon group, x is 1 to 3, y is 0 to 2, x + y equals 3 and A is a substituted 4-hydroxyphenyl group of the general formula wherein R<SP>1</SP> is a secondary alkyl, terpenyl or aralkyl group and R<SP>2</SP> is hydrogen or a secondary alkyl, terpenyl or aralkyl group. The substitutents are preferably in the 2,5 positions. The secondary alkyl group may contain 3 to 28 carbon atoms, preferably 6 to 20 carbon atoms and the radical B may be alkyl, aryl, aralkyl or alkaryl. When R1 and/or R<SP>2</SP> are aralkyl they may be alpha methyl benzyl or alpha-alphadimethyl benzyl and when one or both of the radicals is a terpenyl radical the latter may be derived from a monocyclic, polycyclic or acyclic terpene, and several terpenes are specified including turpentine, camphene and dipentene. The phosphite triester products may be obtained by the following methods as appropriate: (a) by reacting 1 mole of an appropriately substituted hydroquinone with not more than one third mole of PCl 3 , (b) by reacting PC1 3  consecutively with a hydrocarbon-substituted phenol and the substituted hydroquinone using appropriate molar proportions, (c) by reacting a mixture of a substituted phenol and the substituted hydroquinone with the appropriate amount of PCl 3 , and (d) by heating a phosphite ester (BO) 3 P, e.g. triphenyl phosphite, a trialkyl phosphite, e.g. tributyl or tridecyl phosphite, or a mixed aryl alkyl phosphite with the substituted hydroquinone. The products are useful as stabilizers for diolefin polymer rubbers, e.g. styrene-butadiene copolymer. Substituted hydroquinones are obtained by reacting hydroquinone with an alpha-olefin and/or a terpene or styrene or methyl styrene. Several examples of such process are given including the production of alkylated hydroquinones by reacting hydroquinone with (a) mixed C 6 -C 10  alpha olefins in the presence of an acid activated montmorillonite catalyst, (b) and (c) with dodecene-1 and octene-1 respectively in the presence of boron fluoride etharate and (d) with a mixture of C 6 , C 8  and C 10  alphaolefins in the presence of a catalyst as in (a) using equimolar proportions of hydroquinone and the mixed olefins and then reacting the product with turpentine in equimolecular proportion.
Patent GB-1059584-A (GB)
Title: Improvements in or relating to bimetal elements
IPC: H01H37/10
Filed: 1963-10-28
Abstract: 1,059,584. Thermal switches. ROBERTSHAW CONTROLS CO. Oct. 28, 1963 [Feb. 20, 1963; March 1, 1963], No. 42478/63. Heading H2B. [Also in Division G1] A bimetal element comprises a unitary bimetal sheet shaped to form a pair of legs 14, 15, Fig. 1, joined by a relatively narrow web portion, the legs being bent to extend in opposite directions from the web portion. The bimetal sheet may be formed of Invar (Trade Mark) steel on the one hand and an alloy containing nickel or manganese on the other. Since the metals on the two legs 14, 15 are reversed one with the other, the legs will bend in opposite directions to compensate for changes in the ambient temperature. The element may be used, for example, to actuate a switch, one leg being clamped and the other carrying a movable contact. By placing a heating coil carrying the current to be controlled adjacent one of the legs 14, 15, this leg will bend to a greater extent than the other to actuate the switch, the central web forming the only path for conduction of heat from one leg to the other. Another form of element is described wherein two legs are provided extending in one direction from the web and only one leg extending in the opposite direction. In this case the current to be controlled may be passed through the element since the single leg will be heated to a greater extent due to its area being smaller than the combined area of the two legs. This element also eliminates effects due to flexing of the web transverse to the legs with rise of temperature. A further embodiment is formed by bending a tongue at right angles to the plane of the bimetal sheet. The central web is bent to a cylindrical form so that the element may be pivotally mounted on a pin. The embodiment shown in Fig. 13 is also formed with a tongue 50, the legs 51, 52 being bent at an acute angle to this tongue. The web 53a joining the two ends of the legs 51, 52 is bent parallel to the tongue 50 to afford a mounting for the element.
Patent GB-1246478-A (GB)
Title: Collimators
Inventor: CLARDIGE GEOFFREY MAXIMILIAN L
IPC: G21K1/04
Filed: 1968-09-06
Abstract: 1,246,478. Diaphragm arrangement. M.E.L. EQUIPMENT CO. Ltd. 6 Sept., 1968, No. 42536/68. Heading H5R. A collimator device comprises two shutter plates or blocks 1, 2, mounted so that they each pivot about a separate shaft, 3 and 4 (not shown), the two shafts being arranged parallel to each other, the shafts being mounted, e.g. in blocks 5, 6, 7, 8 (8 not being shown), respectively, sliding on rods 9, 10; so that they are capable of concerted rectilinear movement towards and away from each other along a direction perpendicular to the direction of the beam of radiation being collimated, means being provided, e.g. lever 11, slider 12, and sloping channel 13 so that the shutter pivots about its associated axis during such rectilinear movement by an amount which is proportional to the distance of the shutter from the central axis of the radiation beam. The rods 9, 10 on which the blocks 5, 6, 7, 8 slide are parallel to each other. Preferably the blocks are connected by two parallel sets of chains and sprockets 14, 15, 16, 17, which are arranged such that operation of the sprockets moves the shutters in opposite directions relative to the central axis of the radiation beam through equal distances.
Patent GB-1153773-A (GB)
Title: Apparatus for Producing Phosphor Screens in Color Television Tubes
IPC: H01J9/227
Filed: 1966-09-26
Abstract: 1,153,773. Lenses. NATIONAL VIDEO CORP. Sept. 26, 1966 [Oct. 1, 1965], No.42911/66. Heading G2J. [Also in Division H1] In a "lighthouse" method for producing the phosphor dot pattern upon the face of a shadow mask colour cathode ray tube two lens systems are used, the second of which compensates for the effect of the vertical component of the earth's magnetic field upon the electron beam. This lens may be formed from a substantially flat member 60, Fig. 6, of uniform thickness bent into the shape shown, or may have a varying thickness as in Fig. 7. Detailed calculations are given of the required shape of the lens.
Patent GB-901715-A (GB)
Title: Method and apparatus for cleaning dirty gas
IPC: B01D47/02
Filed: 1959-12-21
Abstract: 901,715. Washing gas. AMERICAN AIR FILTER CO. Inc. Dec. 21, 1959 [Dec. 31, 1958], No. 43300/59. Class 55 (2). Gas to be washed is directed on to the surface of a liquid in a sump 3 and (Fig. 2), passes with entrained liquid into sinuous conduits between plates 9 and 11, drains 16 being arranged to catch and remove from the apparatus a proportion, e.g. one sixth, of the liquid projected from the upper edge of the plate 11. Made-up liquid is supplied through a perforated pipe 18 below the working level of liquid in the sump to cause turbulence of the liquid and increase the amount of liquid entrained by the gas. As shown in Fig. 3, a curved baffle 27 may be arranged in the upper part of a sinuous conduit dividing the gas and liquid passing therethrough into two streams, the liquid in one of the streams being withdrawn through a drain 16.
Patent GB-1021599-A (GB)
Title: Improvements relating to moulding
IPC: B22C1/00
Filed: 1964-10-23
Abstract: 1,021,599. Mould and core materials. F. S. RAMBLER. Jan. 7, 1965 [Oct. 23, 1964], No. 43412/64. Heading B3F. A moulding mixture comprises 60-85% by weight of comminuted zirconium or a zirconium compound e.g. zircon, and 15-40% by weight of a comminuted compound of alumina and silica e.g. andalusite, cyanite or disthene, sillimanite, fibrolite or mullite. The moulding may be made into a slurry and moulded as described in Specification 1,021,600 which is referred to.
Patent GB-1470288-A (GB)
Title: Double seat valves
IPC: B60T17/18
Filed: 1975-10-23
Abstract: 1470288 Valves ROBERT BOSCH GmbH 23 Oct 1975 [2 Nov 1974] 43510/75 Heading F2V [Also in Division G3] A flat disc valve closure member 4 seats on a planar fixed seat 2 and a movable seat 3, its function being to effect communication between a load 20 and either a pressure source 21 (which may be a compressor) or a discharge passage 23 at its respective terminal positions of its actuator with an intermediate position where both communications are shut off, the movable seat 3 being actuated through a universal coupling 10, 11 to permit accurate alignment between the fixed and movable seats. Embodiments are described in which the universal coupling is at the moving seat member 13 as shown or at an actuating piston (35), Fig. 2 (not shown), and consists of a ball-and-socket. The load may be a pressure regulator (53), Fig. 3 (not shown), of a vehicle braking system in which a piston (51) is displaced by pressure from the source 21 via seat 2 to lift a valve allowing fluid to escape via a connection (54).
Patent GB-1332177-A (GB)
Title: Wide-band circulator
IPC: H01P1/387
Filed: 1970-09-14
Abstract: 1332177 Microwave circulators T D K ELECTRONICS CO Ltd 14 Sept 1970 [13 Sept 1969] 43856/70 Heading H1W A wide band circulator (#f/f>0À2) comprises a gyromagnetic member 13 for example  yttrium iron garnet sandwiched between a ground plate 12 and a circular conductor 14 having radial extensions, and means to apply a magnetic field over a region of the member 13 of greater diameter (D) than that of the circular conductor (d). The magnetic field may be applied over the entire member 13 when the diameters D, d are chosen such that 1À7<D/d<2À1 or the field may be applied to a central portion of member 13 when the diameters are chosen to satisfy the relationship D/d>1À4. The radial extensions extend to the edge of the magnetic member and are of a width approximately equal to the thickness t of the gyromagnetic member 13 and are such as not to act as impedance transformers. Dimensions and tables of numerical data are given.
Patent GB-1166458-A (GB)
Title: Thermoplastic Packaging Films
IPC: B29C48/10
Filed: 1966-09-30
Abstract: 1,166,458. Multilaminate thermoplastics film. CROWN ZELLERBACH CORP. 30 Sept., 1966 [1 Oct., 1965 (2)], No. 43874/66. Headings B5B and B5N. Multilaminate film is made by (I) feeding a plurality of streams of molten thermoplastics resins along independent parallel passageways for a distance sufficient to establish laminar flow; (II) the parallel streams are then brought together in a common passageway so forming a composite resin plug having interfaces between the streams; (III) the plug is then expanded laterally along an axis perpendicular to the direction of flow of the plug and parallel to the interface planes; (IV) the expanded plug is then extruded through a long narrow orifice lying in the plane of the plug. The composite plug may be of rectangular cross-section. The unexpanded composite plug may comprise a primary resin plug of circular cross-section and at least one other resin forming an arcuate portion sheath around not more than one-half of the crosssectional periphery of the primary resin plug. Apparatus is described. The film may be contacted with and adhesively bonded to a web substrate. The film may have one high-slip surface and one low-slip or tacky surface. Slip additives, e.g. fatty amides and antiblock agents, e.g. diatomaceous earth and fine silica may be added to the resin forming the high-slip lamina. The resins used may be polyolefins, e.g. ethylene and propylene polymers and copolymers; for the low-slip and intermediate laminae, copolymers of ethylene or propylene with vinyl acetate, ethyl or methyl acrylate, or methyl methacrylate, may be used. Specification 1,166,459 is referred to.
Patent GB-1240895-A (GB)
Title: Improvements in electromagnetic remote control switches
Inventor: GERSCHLER WOLFGANG
IPC: H01H50/22
Filed: 1968-09-16
Abstract: 1,240,895. Electromagnetic contactors. FABRIK ELEKTRISCHER APPARATE SPRECHER & SCHUH A.G. 16 Sept., 1968 [25 Sept., 1967], No. 43951/68. Heading H1N. An electromagnetic contactor having two mutually attracted linked armatures 1, 1<SP>1</SP> has four identical slide members 6, 6<SP>1</SP> and two of these members are coupled to each armature with the slide members interfitted in pairs, one of each pair being driven by each armature, to act as stops which limit the separation of the armatures. The slide members 6, 6<SP>1</SP> have rounded ends fitting in recesses 5 in the armatures and are retained on pins 11 of stirrup members 10. Each member 10 has a pin 12 which engages in a slot 13 in a respective lever 14 on a shaft 15. The two shafts 15 are rotated, when the armatures attract each other, so that levers 16 extending therefrom move a contact carrier 17. Ribs 20 on the slide members 6, 6<SP>1</SP> engage and slide in slots 21 in the housing 3 and cover 4 which retain the parts in position.
Patent GB-1272759-A (GB)
Title: Improvements in or relating to the longwall mining of coal and other minerals
Inventor: GREBE KONRAD
IPC: E21D23/00
Filed: 1968-09-17
Abstract: 1,272,759. Mineral-mining installations; advancing mine roof support members. K. GREBE. 9 Dec., 1969 [17 Sept., 1968], No. 44070/68. Headings E1F and E1P. The walking frames at the ends of a series of roof-supporting walking frames of a longwall, mineral-mining installation carry either the drive wheel or the guide wheel of a cuttercarrying endless chain mounted at the front of the frames and these wheels are secured on shafts which extend at an angle to the longitudinal axes of the frames supporting the shafts so that the wheels rotate in a plane or planes lying parallel to the face during advance of the frames in a direction that is not perpendicular to the face being mined by the installation. Guidance of the upper run of the cutter-carrying chain is on each of the other walking frames is by a guide rail 16 so mounted on the front of the roof-supporting beam 14 of the frame that the rail is movable into positions where it will extend at an angle to the longitudinal axis of the frame. Preferably the forward edge of each beam is parallel to the intended position of its associated guide rail when the installation is in use. A further guide rail may be fitted to the lower portion of each frame for guidance of the lower run of the chain. (For Figure see next page)
Patent GB-1480076-A (GB)
Title: Deflected-stream dryers for drying web material
IPC: F26B13/10
Filed: 1974-10-11
Abstract: 1480076 Drying webs BUTTNER-SCHILDE HAAS AG 11 Oct 1974 [12 Oct 1973] 44213/74 Heading F4G A deflected-stream web drier comprises one or a plurality of preferably infra-red gas fired radiators 4 disposed between two or respective pairs of drying gas delivery nozzles 1 respectively, each nozzle being in the form of a slot extending perpendicular to the intended plane of the web to be dried. The two nozzles 1 on each pair of nozzles are formed in a common nozzle box 2, a wall of each nozzle being formed by a wall of the box 2. The intermediate space between the nozzles is several times the width of each slot.
Patent GB-1463947-A (GB)
Title: Hydroformylation of olefins
IPC: C07C27/20
Filed: 1975-10-28
Abstract: 1463947 Hydroformylation CELANESE CORP 28 Oct 1975 [22 Nov 1974] 44294/75 Heading C2C In the hydroformylation of olefines using a catalytic complex formed in situ from a Group VIII metal, CO and a ligand, the Group VIII metal is introduced in the form of a watersoluble inorganic salt dissolved in a solvent comprised of at least 40% by weight of a polyalkylene glycol or a mixture of such glycols. The remainder of the solvent may comprise water and an alcohol. Another inert solvent may also be present in the reaction medium. Preferred ligands are organophosphorus compounds.
Patent GB-1360093-A (GB)
Title: Device for shuttering floors
IPC: E04G11/46
Filed: 1971-09-23
Abstract: 1360093 Shuttering for ribbed floors O WENZEL 23 Sept 1971 [29 Sept 1970] 44461/71 Heading E1S Shuttering for ribbed concrete floors comprises inverted open-ended channel members of plastics material, each channel having intermediate its ends a separation line e.g. a peripheral recess 7 whereby the channel may easily be separated into portions 1a, 2a and each channel having end flanges 4, 5 and flange-forming members 6a, 6b adjacent theline 7 which form end flanges on the portions 1a, 2a after separation, at least one end flange 4 being of different height from the members 6a, 6b, the flanges serving for overlapping engagement when a plurality of channels and channel portions are aligned end-to-end in use, (Fig. 7, not shown); separate end members close the ends of each such assembly of channels. The inside walls of the channels may have recesses to receive stiffening cross-struts, and pockets to receive tools for flexing the walls inwardly for stripping, and the outside walls may have ledges at various heights for bearing on supporting structure. As shown, the separation line 7 is located one-third of the length along the channel, but may be centrally located.
Patent GB-977949-A (GB)
Title: A process for the production of refractory bricks
Filed: 1961-12-12
Abstract: In the process of the parent Specification for the manufacture of converter buttoms or refractory bricks having a basis of refractory materials and organic binding agents in which the bottoms or bricks are initially compacted by pressure, are heated to 100-350 DEG  C., and whilst so heated are compacted further, the improvement is that the heating of refractory bricks is at least partly effected by means of heat-conducting elements introduced into or incorporated in the bricks to extend into or through the material of the bricks, the elements being withdrawn from the bricks prior to completion of the further compacting operation so that the ensuing compacting closes the cavities left by withdrawal of the elements. The elements may be hollow tubes, e.g. of steel, copper, magnesium or magnesium alloy, or of refractory material identical in composition to the base material or different therefrom, or may be bars of magnetic metal.  When the elements are hollow tubes, heating wholly or partly is by passing hot gases through the tubes, or by introducing electrical resistances into them.  Solid bars of metal may be heated by induction.  Part of the heating may be carried out externally by introducing the bricks in their moulds into a furnace, by passing hot gases through holes in the moulds, or by heating the moulds electrically. The bricks when made may be fired at 300-2000 DEG  C. before they are introduced into the furnace they are intended to line.  Both heating and firing operations may be carried out at superatmospheric pressure and the compacting operation can be performed under vacuum.
Patent GB-1279604-A (GB)
Title: Processing method for photodevelopable silver halide materials
Inventor: SUTHERNS EDWARD ARTHUR
IPC: G03C5/30
Filed: 1968-09-19
Abstract: 1279604 Processing photo-developable silver halide materials KODAK Ltd 19 Sept 1969 [19 Sept 1968] 44634/68 Heading G2C An internal latent image formed by imagewise exposure of a layer of a photo-developable silver halide material is developed or a visible image formed by photo-developing such a latent image is intensified by treating the layer with a solution of an oxidizing agent to bleach any surface latent image and then treating the layer with a silver halide developing solution containing a silver halide solvent. The oxidizing agent may be an aqueous solution of a ferricyanide or an acidic aqueous solution of a dichromate. The silver halide solvent may be a thiocyanate or thiosulphate, preferably present at 1-10g per litre of developing solution, or may be an alkali metal bromide present at at least 0À08 molar. The layer may be treated after development with a fixing or stabilizing solution. Images of good stability and discrimination (i. e. image density minus background density) are produced.
Patent GB-1404777-A (GB)
Title: Treatment of biodegradable waste products
IPC: C02F3/10
Filed: 1972-09-29
Abstract: 1404777 Biological filters ECODYNE CORP 29 Sept 1972 [26 Nov 1971] 44991/72 Heading C1C An apparatus for biologically purifying waste liquid comprises a housing 12 containing a biological filter bed 12 (e.g. polypropylene rings or saddles), surrounding a central passage 26 which is associated with surface aerator 30 (or with a diffuser, not shown), liquid inlet 14, clarified liquid outlet conduit 16 and sedimentation zone 38. In use the bed is maintained submerged and the liquid is circulated in a circuit in which it passes downwardly through the bed 12 and upwardly through passage 26, and is uniformly through the bed 12 and upwardly through passage 26, and is uniformly distributed over bed 12 and aerated by aerator 30. The clarified liquid is discharged through conduit 16 and weir box 18 to conduit 20. Solids settling in zone 38 are periodically removed.
Patent GB-1331755-A (GB)
Title: Liquid crystal colour display
IPC: G09F9/35
Filed: 1970-09-22
Abstract: 1331755 Modulating light RCA CORPORATION 22 Sept 1970 [29 Dec 1969] 45073/70 Heading H4F [Also in Division G5] A colour display system comprises a plurality of cells in tandem, each cell comprising a solution of a different pleochroic dye composition in a nematic liquid crystal composition, and electrodes for separately applying an electric field across each cell. In a preferred embodiment polarized light is passed sequentially through the cells which turn to colourless from cyan, magenta and yellow respectively on application of an electric field to provide substantially every visible colour including black and white. The cells may be separate units or may be compacted by providing a single separating plate, electroded on both sides, between adjacent compositions. Details of preferred pleochroic dye and nematic crystal compositions are given. The dyes are non-ionic and from 1-5%, preferably 1-2%, by weight of the overall composition. Reference has been directed by the Comptroller to Specifications 1,148724, 1,228,606 and 1,273,779.