baber/WOPTO huggingface dataset:
Patent GB-1065348-A (GB)
Title: Improvements in or relating to screwdrivers and their manufacture
Inventor: RODGER GEORGE ERIC
IPC: B25B15/00
Filed: 1965-04-26
Abstract: 1,065,348. Milling. J. STEAD & CO. Ltd. Jan. 13, 1966 [April 26, 1965], No. 17411/65. Heading B3K. [Also in Division B4] In a method of making a screwdriver with cruciform ribs of uniform thickness, the axis 2 of the stem is located between parallel axes 3A, 3B of two pairs of milling cutters 4A, 4B; 4C, 4D spaced apart by the desired rib thickness for cutting of a rib between them by relative lengthwise movement between the stem 1 and cutters substantially equal to the tapered length of the point 8 in a direction at right angles to the axis of the cutters so that the plane 11 which includes the axes 3A, 3B of the cutters reaches the plane at 12 where the tapering 9 reaches the full diameter of the stem 1. The inner side faces 8A, 8B of the cutters 4A, 4B form one side face each of the ribs 7AC and 7BC; the other side faces of the ribs 7AC and 7BC are formed by the peripheries 6C, 6D of the cutters 4C, 4D the inner sides 8C, 8D of which form the side faces of the rib 7CD. The cutters are relieved at 13A-13D on the arc of a circle centred on the axis 2 of the stem to effect a lengthwise fillet 15 between one rib and the adjoining rib. The relieving in concave to the arc of a circle of appropriate diameter so that the four resultant fillets produce a longitudinal core of circular cross-section. The two fillets at each of the ribs 7AB, 7CD emerge from the periphery of the stem at 16 but in order to effect the same results with the ribs 7AC, 7BC, it is necessary to make a second cut after indexing the stem 1 through 90 degrees, Figs. 3 and 4 (not shown). The identical form of the ribs results in there being between each adjoining pair, a symmetrical wedge (18) tapering inwards to the core, (14) in the direction of the tapered end (8). In a modification. Figs. 5-7 (not shown); the driver completed in one cut, the pairs of ribs being non-identical beyond the parallel length of the taper 9. By indexing the stem through 180 degrees one pair of cutters could complete the ribbed point.
Patent GB-719584-A (GB)
Title: Improvements in aliphatic ketone-diarylamine antioxidants
IPC: C08K5/3437
Filed: 1952-07-11
Abstract: A solid aliphatic ketone-diarylamine condensate is converted into a liquid having a viscosity of 10 to 50 poises at 30 DEG C., by heating it, for example at 200 DEG  to 300 DEG C. for 5 to 15 hours, with an alkylated benzene having at least one alkyl group containing at least 2 carbon atoms and at least one hydrogen atom on the carbon atoms alpha and beta to the benzene ring, in amount, for example, of 5 to 100 per cent. by weight of the solid condensate. Catalysts such as iodine, bromine, hydrogen iodide, hydrogen bromide, ferrous iodide and bromide and zinc iodide and bromide, may be used.  In examples, oils are formed by reaction of a solid diphenylamine-acetone condensate in the presence of iodine, with (1) diisopropylbenzene, (2) cumene, and (3) ethylbenzene.  The products may be washed with sodium bicarbonate solution and water, dried and volatile products removed by distillation under reduced pressure.  Other solid condensates specified are those obtained by condensation of N:N1-diphenyl-p-phenylene diamine, ditolylamine, dixylylamine, phenyltolylamine, dinaphthylamine, and phenyl-alpha-and phenyl-beta-naphthylamines with methyl ethyl-, methylpropyl-, methylbutyl-, diethyl-, dimethyl-, dipropyl-and dibutyl-ketones, mesityl oxide and phorone.  Other alkyl benzenes specified are n-propyl-, n-amyl-, n-hexyl-, isobutyl-, isoamyl-, mixed m-and p-diethyl-, n-butyl-, p-diisobutyl-, p-di-n-butyl-, p-diamyl-, 1.2.4-triethyl-, 1.2.4-tributyl-, 1-methyl 4-isopropyl-, 1.2.4.5-tetraethyl-and pentaethyl-benzenes.  The products are useful as rubber antioxidants.  Specifications 520,717 and 521,576 are referred to.ALSO:Liquid diarylamine-ketone condensation products (see Group IV(a)) are useful as rubber antioxidants and for imparting increased flexcracking resistance to natural and synthetic rubbers. Comparative figures are given for the flexing ability of products obtained by using antioxidants in curing the tyre tread recipe:-smoked sheet (100 parts by weight), carbon black (45), zinc oxide (5.0), pine tar (3.5), lauric acid (3.5), sulphur (3.0), mercaptobenzothiazole (1.0), and antioxidant (1.0). Specifications 520,717 and 521,576 are referred to.
Patent GB-1121335-A (GB)
Title: Polymerization of olefins with bf
IPC: C07C2/20
Filed: 1966-04-21
Abstract: A method of polymerizing C5-C20 1-olefins to an oily liquid oligomer mixture comprises feeding to a reaction zone a stream (1) of the 1-olefin saturated with BF3 and a stream (2) of BF3 complexed, in a 1:1 molar ratio, with a promoter, and commingling the streams under polymerization reaction conditions i.e. a temperature below 60 DEG C., preferably 0-35 DEG  C., and atmospheric or 1-500 p.s.i.g. pressure.  Suitable BF3-promoters are water, octanol, 1-decanol, acetic, propionic or butyric acid, diethyl ether, acetic or succinic anhydride, ethyl acetate, methyl propionate, acetone or benzaldehyde. The feedstock may be 1-pentene, 3-methyl-1-butene, 1-hexene, 3,3-dimethyl-1-butene, 2,3-dimethyl-1-butene, 1-heptene, 1-octene, 2,3,3-trimethyl-1-pentene, 2-ethyl-1-hexene, 1-decene, 1-undecene, 1-dodecene, 1-tetradecene, 1-hexadecene, 1-octadecene, 1-eicosene or mixtures thereof, especially 1-decene or a mixture of C6-C12 olefins having a C10 mean chain length.  The feed rates are controlled to charge 0.006-0.01 mol promoter per 100 gm. olefin.  Reaction conditions can be adjusted to give dimers, trimers, and higher oligomers in relative proportions as desired, for example (as exemplified) a minimum proportion of the dimer of poly-1-decene.  The products have use as lubricants.
Patent GB-274841-A (GB)
Title: Improvements in or relating to the application of cellulose esters and ethers, and products thereby obtained
IPC: D06Q1/00
Filed: 1927-07-01
Abstract: 274,841. British Celanese, Ltd., (Assignees of Schneider, G., and Dreyfus, C.). July 23, 1926, [Convention date]. Yarns and threads, treating with liquids.-A process for coating threads or other articles or objects made of or containing or having a surface of cellulose acetate or other fatty acid esters or ethers of cellulose consists in applying to the articles or objects a solution of cellulose acetate or other fatty acid ester or ether of cellulose in which the solvent used is a non-solvent for the ester or ether present in or on the article or object to be coated. The process may be applied to the protection of hygroscopic cellulose ester surfaces, by coating with a solution of a non-hygroscopic cellulose derivative, to the production of metallic, coloured, or decorative effects by the use of metal powders, pigment or other materials, or for the protection of the effect obtained by rubbing crystals of metallic salts on the articles to be coated. As the same ester of cellulose may be prepared in several phases of different solubilities, a base of cellulose acetate which is soluble in acetone but inosloluble in chloroform or ethyl acetate may receive a coating of cellulose acetate soluble in chloroform or ethyl acetate. Examples of the application of the process are as follows. Permanent metallic effects are produced on fabrics, &c. by first producing a dark polished surface by means of a coating of a solution of cellulose acetate in acetone, preferably dyed black by nigrosine. The cellulose acetate used is insoluble in ethyl acetate and insoluble in or only slightly softened by chloroform. A metallic effect is produced on this surface by rubbing with fine crystals of bismuth or antimony oxychlorides and the effect is made permanent by coating with a clear solution of cellulose acetate in ethyl acetate or chloroform. For the production of an iridescent metallic effect, the protective coating in the foregoing example is applied as several coatings of a very dilute solution of the cellulose ester. Filaments or threads of cellulose acetate artificial silk are treated with a dilute solution of a fatty acid ester or ether of cellulose dissolved in benzene, which is a non-solvent for the cellulose acetate, and containing bronze or other metallic powder. The Specification as open to inspection under Sect. 91 (3) (a) refers to esters and ethers of cellulose other than fatty acid esters and ethers, and in particular to nitro-cellulose. It also refers to Specification 271,425, [Class 140, Waterproof &c. fabrics]. This subject-matter does not appear in the Specification as accepted.
Patent GB-247079-A (GB)
Title: Means for, and relative to mixing cotton pneumatically
IPC: D01G13/00
Filed: 1925-07-09
Abstract: 247,079. Howard & Bullough, Ltd., and Bancroft, J. July 9, 1925. openers etc.; feeding openers (&c.-In an arrangement for cleaning and mixing cotton by pneumatic means in which the cotton from bale openers b Fig. 2, is passed through dust trunks i and a conduit k to one or other of a series of chambers m by a blower g, each chamber is provided with a pivoted flap valve m<1>, Fig. 4, where. by excess air pressure within the chamber is relieved. Air and dust are withdrawn from the chambers through a pipe n by a fan o and are passed to a filtering chamber r. This chamber is divided by gauze partitions, t, Fig. 5, in vertical and horizontal planes, so that the air traverses a tortuous passage. Dust falls into a box v at the base and the air escapes through an outlet t<2>. Gauze or otherwise protected fans may be used in the chambers m to assist in agitating and mixing the fibres therein.
Patent GB-632977-A (GB)
Title: Improvements in or relating to insulating structures
IPC: H01B17/16
Filed: 1947-07-04
Abstract: 632,977. insulators. DUKE, S. M. July 4, 1947, No. 17672. Convention date, July 29, 1946. [Class 36] To prevent changes of temperature damaging or loosening an insulator having a metal support the contact surfaces of the insulator and support are of a shape generated by a straight line which moves through a fixed point, e.g. frusto-conical. Fig. 1 shows an insulator 1 having a groove 2 provided with conical side walls 3 with which a ring 4 made in two or more segments engages. An open or closed cap 5 which may have tapered threads engages threads on the ring. The cones of which the walls 3 are a part have a common apex 7. Fig. 3 shows a modification in which the groove 12 in the insulator has only one conical wall 13, which is engaged by the sections of a ring 16. The end of the insulator is formed with a wedge shaped groove 14 the planes of whose walls pass through the apex 22 of the cone 13. A wedge 15 is pressed into the groove by the cap 17. Fig. 6 shows a further modification in which the insulator 31 is tubular and is fixed to a support 35 by bolts 39 which press a ring 37 into engagement with a projecting ring 32 on the insulator. The engaging surfaces of the rings 37, 32 are part of a cone having its apex at 40.
Patent GB-259313-A (GB)
Title: Improvements in or relating to the structural casings of internal-combustion engines
IPC: F02B3/06
Filed: 1925-07-10
Abstract: 259,313. Invernairn (W. Beardmore), Lord, and Chorlton, A. E. L. July 10, 1925. Frames and casings; cylinders, construction of and coolinp; engine constructions, independent of cycle.-The framing of a multicylinder Diesel or like engine is cast as an integral unit, serving as the engine casing, and comprising an apertured plate 10, from which the liners are suspended, webs 12, between the cylinders, and ends and sides 11. The liners are clamped by the separate heads 16 and guided by a plate 18, integral with the framing, a water-tight joint being formed by rings 20, the space 21 forming the water jacket; holes are formed in the webs 12 to allow the water to pass from one cylinder jacket to another and passages 31 connect the cylinder and head jackets. The bottoms of the webs 12 are thickened and made hollow and triangular in section. They have holes 23<1> for the holding-down bolts and carry the crank-shaft bearings. Hand holes 28 having covers are provided. An eight cylinder engine is described comprising two four-cylinder blocks. The framing may be of cast steel or iron. In the modification shown in Fig. 8 the engine block comprises eight cylinders arranged in two rows of four cylinders each disposed at an angle to one another. The plates 34, 35 from which the lines are suspended and the guideplates 45 are curved, the web plates are double, and a vertical partition 38 is cast integral with the structure. The cylinders are slightly staggered so that the big-ends of the connecting rods can be pivoted to the same crank-pin. The lower edges of the sides are of box section as shown at 58.
Patent GB-1062002-A (GB)
Title: Position determining apparatus for vehicles travelling on a track
IPC: B61L25/02
Filed: 1965-04-27
Abstract: 1,062,002. Electric selective signalling. SIEMENS & HALSKE A.G. April 27, 1965 [April 28. 1964]. No. 17768/65. Heading G4H. Pulses emitted for each metre's movement of a track vehicle travelling between marking points, the mean distance between which is 100 metres, are passed to a counter Z 1 counting up to 100, which via a switch B1 prepares an AND gate K1 when the counter reaches 80 so that pulses emitted from E2 as the vehicle passes a marking point are passed through an OR gate M2 to reset the counter Z1 and in so doing step on a marking point counter Z2 and a disturbance counter Z3. On reaching a count of 100 before receipt of a marking point pulse the counter Z 1 automatically steps on the counter Z2 and Z3, and in the event of a marking pulse appearing when the counter Z1 is in its 0-20 stage the counter is reset without counter Z2 and Z3 being stepped on. If several marking point pulses are missed the counter Z3 gives an alarm signal. In a modification the apparatus is extended so that marking pulses occurring between 65 metres and 135 metres are counted.
Patent GB-711031-A (GB)
Title: Improvements in or relating to oil-filled electric cables
IPC: H02G15/20
Filed: 1953-06-26
Abstract: 711,031. Stopping pipes. PIRELLI SOC. PER AZIONI. June 26, 1953 [Feb. 5, 1953], No. 17772/53. Class 99 (2). [Also in Groups XXIII and XXXVI] The end of a fluidfilled electric cable 1 is closed with an oil-impermeable sheet 7 secured around the cable with bindings 8. The oil duct in the cable is closed by driving an axially bored pin 9 through the sheet 7 and into the duct. The pin may be closed by a screw-in cap and the sheet 7 removed. If the cable is provided with a metal helix which supports the conductor around the duct, the pin 9 may have a shoulder 14 which engages the end of the helix and pushes it into the interior of the cable.
Patent GB-1102908-A (GB)
Title: Pressure relief valve
IPC: G21C9/00
Filed: 1966-04-19
Abstract: 1,102,908. Reactors. ATOMIC ENERGY OF CANADA. 19 April, 1966 [9 Aug., 1965], No. 17808/67. Divided out of 1,102,907. Heading G6C. The subject-matter of this Specification is identical with that described in Specification 1,102,907 but the claims are concerned with the relief valve connected to the reactor containment vessel.
Patent GB-1130363-A (GB)
Title: Improvements in and relating to rotary tapered plug valves
Inventor: FLOYD TERENCE JOHN
IPC: F16K5/16
Filed: 1965-04-28
Abstract: 1,130,363. Valves. AUDCO Ltd. 28 April, 1966 [28 April, 1965], No. 17853/65. Heading F2V. The plug 3 of a rotary conical cock is partly supported by the seating surfaces and partly by a pad 4 of shearable material between the smaller end of the plug and the body 2; the pad 4 extrudes under axial load into a recess 5 in the plug or body. The pad 4 which may be of lead, zinc, copper, synthetic rubber, polyvinyl-chloride or polytetrafluoroethylene, continues to support a load after the shearing action has ceased, the magnitude of the supported load being dependent upon the difference between the diameter of the outside of the pad and that of the recess
Patent GB-168724-A (GB)
Title: Improvements in vehicle axles
IPC: B60B37/10
Filed: 1920-06-30
Abstract: 168,724. Masters, L. M. June 30, 1920. Hubs. - In a vehicle axle of the kind provided with a removable collar G, Fig. 1, near its end to engage in a recess in the inner end of the wheel bush D, the wheel is secured in position by an annular plate E secured directly to the wheel hub C and loosely surrounding the axle A on the inner side of the collar. As shown, the collar G is internally threaded to screw upon a threaded portion H of the axle end B where it is held in position by jamming against a slight shoulder b on the axle, and the plate E is secured by bolts F to the hub C. In a modification, the collar G is made in one with a sleeve J, Fig. 2. which fits over the full length of the axle end B and screws thereon, thus providing a renewable lining to the axle bearing. The collar may be provided with means, such as holes g, to be engaged by appropriate tools for screwing purposes.
Patent GB-994515-A (GB)
Title: Improvements in or relating to electromagnetic clutches or brakes
IPC: F16D27/112
Filed: 1962-05-10
Abstract: 994,515. Friction clutches. PINTSCH BAMAG A.G. May 10, 1962 [June 13, 1961], No. 17970/62. Headings F2C and F2E. In an electromagnetic friction clutch or brake having an armature 5 attracted by a stationary magnet 1 into engagement with a polepiece 3 fast on a driven shaft 2, the polepiece 3 has a number of slotted cut-outs 3b forming peripheral pole-shoes 3d supported by bridge portions 3c, the circumferential resilience of the pole-shoes absorbing stick-slip vibrations and suppressing noise resulting therefrom, such vibrations being additionally suppressed by mounting the armature 5 with circumferential play on pins 7a of a carrier 7, fast on a driving V-pulley 6, or, in Figs. 3 and 4 (not shown), forming the armature from a number of segments resiliently mounted, for axial play, by blade springs on the carrier. The blade springs additionally serve to retract the armature segments, on disengagement, overcoming residual magnetism, and the polepiece and/or armature may have friction linings.
Patent GB-569996-A (GB)
Title: Improvements in or relating to electrode assemblies or anvils for electrical billet heating machines
IPC: C21D1/40
Filed: 1943-11-01
Abstract: 569,996. Heating by passage of current. ARON, H. Nov. 1, 1943, No. 18019. [Class 39 (iii)] Electrodes for machines for heating billets by passage of current therethrough comprise an anvil 57, the back of which is clamped against the face of an anvilholding block 50 having an aperture 173 in its face closed by the back of the anvil, cooling liquid being circulated through passages in the block 50 through the aperture into direct contact with the back of the anvil. The anvil 57 consists of a cylindrical block of metal with a circumferential groove 59 engaged by readily releasable dogs 60 fastened by set screws 160 in a recess 58 on the block 50. The anvil may be of copper and have a conical recess in its working face carrying a plug 142 of tungsten alloy to support the billet 133. The billet heater, described in Specification 569,120, [Group XXII], comprises an iron shelf 42 supporting tie bars 45, 46 and is insulated by bushes 51 and washers 52 from the bronze anvil-holding block 50 mounted thereon and supported centrally by a boss 55 and insulating washer 56. Water is fed at 67 to a plug 167 in the block 50 and passes by a jet 68 into a recess 69 in the anvil 57, passing thence to a central chamber 168, through a port 169 to a lateral chamber 170 and through a passage 171 to a second lateral chamber 172 in the block 50, whence the water is drawn off by an outlet 66 in a cover plate 65 on the block 50. , An upper movable anvil-holding block 70 similarly constructed slides on the bars 45, 46. Bushes 72, which may be made in two parts, have flanges 73 and are attached by screws 74 to the block 70, which is raised and lowered by a hydraulic ram 87 attached by screws 167 to a cylinder casting 75 on the block. Washers 158 are placed at the ends of spigots 157 on the backs of the anvil, which fits in recesses in the anvil block. The ends of secondary windings of a transformer are connected to screws 62 in the rear faces of the upper and lower anvil-holding blocks.
Patent GB-388642-A (GB)
Title: An improved subaqueous tunnel and method for its construction
IPC: E02D29/063
Filed: 1932-06-25
Abstract: 388,642. Subaqueous tunnels. GUNDERSEN, A., 30, Tollbodgaten, Oslo, Norway. June 25, 1932, No. 18023. Convention date, June 26, 1931. [Class 85.] A subaqueous tunnel section comprises two longitudinal interior side walls 1, 2 which are interconnected both at their upper and lower edges by flat and curved surfaces 5, 6 and 7, 8 respectively, two longitudinal vertical side-walls 3, 4 parallel to and spaced from the walls 1, 2 and tension members 9 integral with the horizontal surfaces 6, 5 extending laterally towards the walls 3, 4, thus ensuring that the concrete mass 10 shall also serve as a loadcarrying element. The pairs of side walls are connected by ribs which may have perforated webs and the structure may be of iron or of concrete, the surfaces 5 .. 8 being in the latter case reinforced. The spaces between the members 6, 8 and 5, 7 may serve as ventilation channels.
Patent GB-185891-A (GB)
Title: Device for mechanically rectifying high-tension polyphase current
IPC: H02M1/20
Filed: 1921-07-04
Abstract: 185,891. Lodge Fume Co., Ltd., (Metallbank und Metallurgische Ges.). July 4, 1921. Commutator switching - arrangements. - In a device for mechanically rectifying hightension polyphase currents for use in connection with apparatus consuming high-tension current of small energy, for example electrical gas purifiers, R÷ntgen tubes, &c. in which the current connections are effected synchronously with the periodicity of the polyphase currents, the connections are so arranged that individual phases are momentarily connected together when they are at the same potential. In the arrangement shown, for rectifying three-phase currents the direct-current terminals f1, f2 are connected through brushes l1, l2 and slip-rings d1, d2 to conducting segments b1, b2 on a disc a rotated by a synchronous motor. Each of these segments extends over an arc of approximately 120‹, and co-operates with stationary contacts or sparking points c1, c2, c3 connected to the polyphase poles. In the position shown, the phase II is at its positive maximum, and is connected to the segment b2, while the phases I, III have equal negative values represented by the point m, Fig. 2, and are both connected to the segment b1. An almost constant uninterrupted unidirectional voltage is thus obtained at the terminals f1, f2. The contacts may be placed in a medium having a high dielectric constant, e.g. oil, or synchronously-operated mercury jets may be used for making the connections.
Patent GB-756710-A (GB)
Title: Improvements in or relating to organic silver compounds and the production thereof
IPC: A61L15/18
Filed: 1954-06-21
Abstract: An antiseptic agent based upon a silver-polyuronate compound is obtained by partially depolymerizing alginic acid by heating, and reacting the product with a solution of a silver salt, e.g. silver carbonate.  Another oligodynamic metal (e.g. gold) may be substituted for silver.ALSO:A soap includes an antiseptic agent which is obtained by partially depolymerizing alginic acid by heating, and reacting the product with a silver salt, e.g. silver carbonate, to which reaction product is added potassium permanganate.  The soap may be prepared from castor oil, olive oil and oleic acid.ALSO:An antiseptic based upon a silver-polyuronate compound is obtained by partially depolymerizing alginic acid by heating, and reacting the product with a solution of a silver salt, e.g. silver carbonate.  Enhanced germicidal properties may be accomplished by combining the reaction product with an oxidising agent, e.g. potassium permanganate, and by the substitution of the silver by another oligodynamic metal (e.g. gold).  Soap may be present.