baber/WOPTO huggingface dataset:
Patent GB-435665-A (GB)
Title: Improvements in and relating to radial flow pressure turbines
IPC: F01D1/06
Filed: 1934-12-13
Abstract: 435,665. Steam turbines. SHEVLIN, J. T., 15, South Street, Finsbury, London.- (Siemens-Schuckertwerke Akt.-Ges.; Siemensstadt, Berlin) Dec. 13, 1934, No. 35862. [Class 110 (iii)] In a radial-flow turbine an overhung rotor disc 1 has blading on both sides, the blading being traversed by the steam in series. The blading 2 on the high pressure side is of less radial extent than that, 3, on the low pressure side, and a labyrinth packing 4 is sc positioned that end-thrust is balanced. The highpressure stage is shown as outward-flow, but may be inward-flow, the connection between the stages being by external piping or by openings in the rotor disc. The first blade-ring may be of impulse type to permit of nozzle regulation.
Patent GB-362551-A (GB)
IPC: F02M1/00
Abstract: 362,551. Throttle valves. TONDEUR, R., 25, Denbigh Terrace, and BOWDEN WIRE, Ltd., Bowden Works, Victoria Road, Willesden Junction, both in London. Sept. 20, 1930, No. 28168. [Class 135.] Closure members, hinged.-A butterfly throttle valve 1 is twisted to provide a screw surface to impart a rotary motion to combustible mixture traversing the inlet pipe of an internal-combustion engine. The surface is obtained by bending or twisting a sheet-metal disc of polished steel having a high resistance to heat and corrosion. Two coaxial spindles 3 embrace and grip the ends of the valve 1 through screws 4.
Patent GB-1346240-A (GB)
Title: Forming pleats in curtains
IPC: A47H13/16
Filed: 1971-08-02
Abstract: 1346240 Suspending curtains; curtains W BUNGER 2 Aug 1971 [8 Aug 1970] 36295/71 Headings A4B and A4S A curtain or pleating tape therefor includes a substantially inelastic pleating string 14 secured thereto in non-displaceable manner at pairs of spaced terminal positions 17, 18 to define float sections 16 and zones 19 over which the string is secured to the tape or curtain, open ended pockets 20 being provided in the tape or curtain, the arrangement being such that to pleat the curtain the float sections are drawn in loop form 25 through the pockets 20 to draw the respective terminal positions 17, 18 together and thereby form the pleats 27. The loops 25 may be used to engage a suspension hook or runner. The loops 25 may be drawn through the pockets by an auxiliary string 15 having loops 24 extending through the pockets and around the string 14. Several loops 25 may be engaged by a single suspension hook 28, Fig.4. The pockets 31, Fig.7, may be formed by threads 32 of the tape and the string 15 may engage the pleating string 14 to draw two loops 25, 25' through each pocket. The float section 16 may be sub-divided into sections 42, Fig. 8, to form a group of pleats (44-47), Fig. 9 (not shown). A curtain 50, Fig.10, may include two optionally usable pleating strings 14, 14' each with an associated auxiliary string 15, 15'. Float section 16 may have outer sections 61, Fig.12, and a short centre section which forms the loop 62 that can be pulled through a loop 67 formed from the threads of the tape.
Patent GB-364287-A (GB)
Title: Improvements in and relating to body supports for baths and the like
IPC: A47K3/12
Filed: 1930-12-02
Abstract: 364,287. Body-supports for use in baths &c. LAYLAND, L. E., 135, Hammersmith Road, West Kensington, London. Dec. 2, 1930, No. 36340. [Class 26.] In a device for supporting the body in a bath, &c., the supporting members for the seat, shoulders and head are mounted upon a rubber sheet attached to t h e inner surface of the bath &c. so as to be capable of longitudinal adjustment in relation to one another. The sheet 5 is attached to the bath &c. by suckers 6, and carries, by an integral or flexible connection, a pillow 7, which may be provided with a flap having suction members, the position of the pillow being adjusted by folding the sheet. The seat recess 1 is combined with a support 4 and a preferably semicircular member 3 which is partially of rubber and partially inflated or filled with water. The shoulder support is constituted by an inflated or rubber pillow 9 attached to the mat in any desired position by suckers.
Patent GB-1424280-A (GB)
Title: Electro-magnetic relay
IPC: H01H51/06
Filed: 1973-07-31
Abstract: 1424280 Hinged armature electromagnetic relays TRW Inc 31 July 1973 [31 July 1972] 36352/73 Heading H1N A hinged armature relay particularly for automobile control circuits, has its armature 29 on a spring hinge 20 attached to a terminal 19 adjacent the insulating relay base 11 and the movable contact 31 is mounted on the armature hinge spring assembly to engage a fixed contact 33 also adjacent the base 11 to provide minimum length current paths within the relay.
Patent GB-358792-A (GB)
Title: Improvements in captive ball appliances for games
IPC: A63B71/02
Filed: 1930-12-04
Abstract: 358,792. Practising golf &c. WYLD, W., 19, Harboard Road, Waterloo, Liverpool. Dec. 4, 1930, No. 36540. [Class 132 (ii).] A captive ball appliance for practising golf or other games comprises a coil of open formation having means for securing it to the ground or other surface and a ball tether adapted to ride along the turns of the coil when the ball is struck. As shown, the coil is of conoidal form and is secured to a central ground rod 4 bearing a graduated scale 15 of distances. The graduations may be made on the coil instead of on the rod. The ball 6 is connected to the coil by a flexible tether 7 'incorporating a shock absorber 10 and a detachable spring clip or hook 8. When the ball is struck the hook 8 travels up the coil, and the probable distance of the drive is indicated on the scale 15 by the height to which the hook rises.
Patent GB-988069-A (GB)
Title: Improvements in or relating to zirconium-base alloys
Inventor: EVANS EVAN WILLIAM
IPC: C22C16/00
Filed: 1962-09-26
Abstract: An alloy of the composition .Nb.2-3% .Zr and impurities.the balance, is solution treated at a temperature above the alpha/alpha plus beta transition temperature, e.g. at 800-860  DEG C., cold worked to a reduction between 10% and 50% and aged at a temperature in the range 470-520  DEG C. Prior to solution treating the alloy may be cold worked to a reduction of 1-50%, e.g. a reduction in two stages of 25% each with intermediate annealing. Reference is made to the production of tubes for use in water-cooled nuclear reactors, the tubes being straightened after solution treatment and before ageing to minimize the effect of distortion due to quenching. The treatment sequence given above may be preceded by hot-forging at about 950  DEG C. and hot-rolling at about 1000  DEG C.
Patent GB-1156814-A (GB)
Title: Amplifier Circuit
IPC: H03F1/34
Filed: 1966-08-16
Abstract: 1,156,814. Amplifying circuits. TELEFONAKTIEBOLAGET L.M. ERICSSON. 16 Aug., 1966 [16 Aug., 1965], No. 36720/66. Headings H3T and H3W. In an amplifier comprising amplifying elements, i.e. valves or transistors, having parameters which are dependent upon frequency and upon environmental factors, e.g. supply voltage, temperature, the amplifying elements are connected to a loss-free transmission line. The electrical length and characteristic impedance of the line, together with its manner of connection and the load impedances at input and output of the amplifier are so chosen that for normal working conditions the absolute value of the denominator in the transfer function of the amplifier is a minimum; as conditions vary from the normal condition said value slowly rises so that only a small decrease in amplification occurs over that at the normal working point. In one embodiment, the lowpotential input and output terminals 11, 13 respectively are connected to the corresponding terminals of the amplifying element and the other input and output terminals 10, 12 respectively are connected to either end of one element of the transmission line 2: the ends of the second element of line 2 are respectively connected to the input and output terminal of amplifying element 1. In a second embodiment, the input and output terminals are connected to either end of the transmission line, and in parallel to the input and output terminals respectively of the amplifying element (Fig. 2, not shown). In a further embodiment, Fig. 3, the amplifying element and transmission line are connected in series-parallel: in addition, a frequency dependent impedance may be connected to the input or output of the amplifying element either in series or in parallel, e.g. the impedance 3 connected in parallel with the input terminals of the amplifying element. The Specification gives a mathematical exposition of the manner in which the components of the circuit are determined.
Patent GB-864109-A (GB)
Title: Improvements in or relating to seed sowing machines
IPC: A01C5/06
Filed: 1959-10-30
Abstract: 864,109. Seed sowing machines. PALM, G. H. Oct. 30, 1959 [Oct. 30, 1958], No. 36846/59. Class 6(1). A farrow covering device for use with seed sewing machines comprises two pivotal arms 13 in which are adjustably mounted circular discs 23 each provided with a ring of pins 24. The arms 13 are pivoted in a shaft 11 which carries a press wheel 10.
Patent GB-1151601-A (GB)
Title: Nitrogen-Containing Derivatives of Oligomers of Perfluoroolefins
Inventor: FIELDING HAROLD CROSBIE
Filed: 1966-08-17
Abstract: 1,151,601. Oligomer derivatives. IMPERIAL CHEMICAL INDUSTRIES Ltd. 26 July, 1967 [17 Aug., 1966], No. 36862/66. Heading C2C. Novel nitrogen-containing derivatives of oligomers of tetrafluoroethylene and hexafluoropropylene whose molecules contain at least one of the groups in which the carbon atoms are carbon atoms of the oligomer molecule, the oligomers being branched-chain internally unsaturated perfluoro-olefins of the formula (C 2 F 4 )n, where n is an integer greater than 3, or (C 3 F 6 ) n , where n is 2 or 3, are prepared by reacting the oligomers with ammonia or hydrazine.
Patent GB-851126-A (GB)
Title: Improvements in liquid fuel-fired heaters
IPC: F24C5/08
Filed: 1958-11-17
Abstract: 851,126. Portable stoves : guards : supplying liquid fuel to burners. GRAETZ, E. Nov. 17, 1958 [Dec. 5, 1957], No. 36872/58. Classes 75(1) and 126. [Also in Group XXIX] In a liquid-fuel heating appliance in which fuel is fed from a tank to the burner by gravity, a regulator device connected to the burner feed pipe is arranged below the tank, and a subdivided foldable grid is fitted above the burner pivotable to serve as a grill or a guard, an adjustable and removable reflector being arranged between the grid and burner and the fuel tank. As shown, a valve rod 4 in the tank 2 carries a cone 5, which seals against a seat 6, and a disc 8. A fuel level vessel 3 below the tank is connected to the feed pipe 15 and has a bearing member 12 on which pivots a lever 13 which carries at one end a float 14. In operation, as the vessel 3 empties, the float 14 sinks and the other arm of the lever 13 lifts the disc 8 and valve rod 4, thus opening the valve 5, 6 and allowing fuel to flow into the vessel 3 until the float rises and the free end of the lever 13 is out of contact with the disc 8. If the cone is prevented by dirt from seating firmly in the seat 6 and excess fuel flows into the vessel 3, the float 14 as it rises strikes a lever 11 which trips a spring-loaded lever 9 bringing it into contact with the upper surface of the disc 8 so that the valve rod 4 is pulled sharply down compressing the dirt particles between the cone 5 and seat 6. When the surplus fuel in the vessel 3 is consumed, the valve rod 4 should be lifted, thus raising the disc 8 and returning the levers 9 and 11. to the position shown in Fig. 3. As shown in Fig. 2, the grid 18 acts as a grill ; to serve as a guard the rods are pivoted about the point 20 so that the upper one lies horizontally and the lower one vertically. The reflector 22 is slidably mounted in rails 30, pivotally attached to the side walls of the housing 1. The regulator spindle 16 has a handle 27 with an adjustable pointer (not shown) by means of which the handle may be set relative to a mark on the housing 1.
Patent GB-302594-A (GB)
IPC: F27D11/02
Filed: 1928-12-17
Abstract: 302,594. Schmitz, R. Dec. 16, 1927, [Convention date]. Resistance furnaces and ovens.-A machine for dental work has two superposed chambers a, b with separate electrical heating means a<1>, b<2>, the chamber a being used alone for melting out wax patterns, burning porcelain, soldering, &c. For melting-out, the box e filled with insulating material e<2> is removed, the dental flask d is placed with its cavity b<1> downwards in a funnel t, the upper end of the chamber a is closed by an insulating member e<1>, Fig. 3, with a mica window l<1> for observation, and the electric current is turned on. For casting, the flask d is clamped by bolts g to the box e and inserted, as shown in Fig. 1, in the chamber a. Current is then passed through the heaters a<1>, b<2>, and when metal in the cavity b<1> is observed, through a mica window l, to be ready for casting, a valve m connected to an air pressure supply is opened and the heaters turned off. The Specification as open to inspection under Sect. 91 (3) (a) comprises also modified constructions in one of which the compressed air is supplied by a foot-operated pump and is warmed by passing through a pipe heated by an electrical resistance; and in another the two chambers a, b comprise two portions of the same tube, this being mounted in an in'sulated box carried on trunnions. This subject-matter does not appear in the Specification as accepted.
Patent GB-1534298-A (GB)
Title: Fastener devices
IPC: F16B13/08
Filed: 1976-08-06
Abstract: 1534298 Riveting ROSS COURTNEY & CO Ltd 6 Aug 1976 [10 Sept 1975] 37234/75 Heading B3U [Also in Division F2] A fastener for the blind connection of hollow members 11, 12, 13 comprises a tube having a body portion 4 which is integrally connected at at least one end 5 by a frangible or deformable neck 6 to a head portion 3, the head portion 3 presenting an externally tapered end towards the body portion end 5 to facilitate driving the head portion into the end 5 to expand the. latter radially outwardly. In Fig. 1, the neck 6 is formed by incisions 7, 8 which allow the tabs so formed to be bent inwards to form the tapered part of the head, and leave frangible bridges 6. In Fig. 3, each head portion 3 has cylindrical end parts of different diameters joined by a tapered part 19, radial bridges 6 connecting the head to the body. A further form has the neck as an annular portion between the tapered end of the head portion and the inner edge of the body end 5, the neck not being sheared, but being deformed into the end 5 as the head portion is driven in. In Fig. 2, the fastener is used to join three elongate members 11, 12, 13 of hollow rectangular cross-section. The body portion 4 extends through holes in opposite walls 22, 32 of the middle member 12, and initially the members 11, 12, 13 are slightly spaced apart, with each head portion 3 projecting into one of the outer members 11 or 13 to abut the inner face of an outer wall 41 or 43. As the members are forced together, the fastener necks shear and the head portions enter and expand the ends 5 of the body portion 4 to rivet the three members together. If only two members are to be connected, the fastener may be threaded at one end, to screw into one member, the other end having a head portion 3.
Patent GB-1084743-A (GB)
Title: Method of producing dienes
Inventor: FRILETTE VINCENT JOSEPH
IPC: C07C5/373
Filed: 1964-09-11
Abstract: Diolefins of the formula <FORM:1084743/C4-C5/1> are obtained by pyrrolysis at 349-1010 DEG  C. of an olefin of the formula <FORM:1084743/C4-C5/2> or an olefin which isomarizes to this formula under the reaction conditions, in which R is a secondary or tertiary alkyl group, R1, R2 and R3 are independently hydrogen, halogen, alkyl, aryl, cyano or carboalkoxy groups or two of R1, R2 and R3 may join forming a 4-6 membered carbocyclic ring.  Specified olefins are 2,4,4 - trimethylpentene - 1 (or the - 2 isomer which isomerizes particularly in the presence of magnesium oxide), 2,2,4,6,6 - pentamethylheptene - 3, 1 - methyl - 1 - allyl - cyclopentane, 2 - phenyl - 4,4 - dimethylpentene - 1, 2 - chloro - 4 methylhexene - 1 and b  - isobutylacrylonitrile. Residence times of 0.1-100 seconds may be used together with inert diluents and/or solid heat carriers.
Patent GB-1006521-A (GB)
Title: Improvements in or relating to high voltage potential transformer
IPC: H01F38/26
Filed: 1963-09-23
Abstract: 1,006,521. Transformers. WESTINGHOUSE ELECTRIC CORPORATION. Sept. 23, 1963 [Oct. 26, 1962], No. 37313/63. Heading H1T. An inductive apparatus (e.g. a transformer), having at least one high voltage winding 12, has a lead 22 surrounded by a shield 42A which also, 42B, encircles .the H.V. winding, has solid insulation 140 substantially surrounding the winding and shielding member, and has a second shield 90 surrounding and contacting most of the solid insulation 140, with an intermediate shield 20 embedded in the solid insulation and substantially surrounding (20A) at least part of the lead and being interposed between two parts 12A and 12B of the H.V. winding. The shield 90, which may comprise a crepe-backed metal film (e.g. aluminium) or a carbon -film, may be earthed, and the shield 42A, which may be a similar film wrapped around a phenolic laminate tube 30, may be connected to the H.V. terminal 21 or may be used as the conductor instead of 22, and the intermediate shield 20 formed like the outer shield may be connected to an intermediate portion of the H.V. winding. The part 42B of the inner shield may be hollow and form a cooling duct with the tube 30, and may comprise press-board or laminated plastic rings 50, 54 (Fig. 3), corrugated press-board spacers 56, 58, 60, 62, rope or metal tube end rings 66, and a binding 70 of crepe backed metal foil or the like. A metal end ring 66 may conveniently form the sensing element of a capillary thermometer. Specification 620,900 is referred to.
Patent GB-449617-A (GB)
Title: Improvements in the manufacture of tubing by plastic deformation
IPC: B21J7/14
Filed: 1934-12-31
Abstract: In the manufacture of tubes for indirectly heated cathodes of luminous discharge devices, cathode-ray tubes, and the like by a process of swaging, the material of the tube may consist of an alloy of 98 per cent of nickel and 2 per cent of aluminium.
Patent GB-761526-A (GB)
Title: Steroid compounds
IPC: C07J75/00
Filed: 1954-12-24
Abstract: The invention comprises D 1-hydrocortisone, D 1-cortisone and the 21-organic esters thereof i.e. the 21-formate, acetate, propionate, butyrate, cyclopentylpropionate, dimethylacetate, trimethylacetate, phenylacetate, phenyl propionate, succinate or benzoate.  Such compounds may be prepared from an alkyl 3,11-diketo-1,4,17(20)-pregnetriene 21-oate by protecting the 3-keto group as with an enol ether, cyclic ketal or a pyrrolidyl enamine, reducing the 21-carbonyloxy group with lithium aluminium hydride, regenerating the D 1,4-3-keto group by hydrolysis usually with acid, acylating the 21-hydroxy group to produce 11b -hydroxy-21 - acyloxy - 1,4,17(20) - pregnatriene - 3 - one, and reacting the latter compound with hydrogen peroxide in the presence of a small proportion of osmium tetroxide, thus introducing the 17a  - hydroxy - 20 - keto group.  To produce D 1-cortisone or an ester thereof the 11b -hydroxy - 21 - acyloxy - 1,4,17(20) - pregnatriene-3-one is oxidized, e.g. with chromic acid, and subsequently the 11-keto compound thus obtained, is treated with hydrogen peroxide and a small proportion of osmium tetroxide to introduce the 17a  - hydroxy - 20 - keto group. Specifications 761,490, 761,527, 761,528 and 761,529 are referred to.
Patent GB-822789-A (GB)
Title: Improvements in the manufacture of spheroidal graphite cast iron
IPC: C21C1/10
Filed: 1957-12-02
Abstract: A process for the production of spheroidal graphite cast iron comprises adding to a bath of molten cast iron containing not more than 0.03% sulphur an amount of spheroidizing agent, selected from the group consisting of lanthanum, neodymium, samarium, and praeseodymium, sufficient to spheriodize at least some of the free carbon present in the melt.  The amount of spheroidizing agent added should be sufficient to give a residual amount in the iron of 0.02% to 0.06%.  The agent may comprise lanthanum plus neodymium e.g. 40% neodymium, 60% lanthanum, with cerium present only in impurity amounts.  The metal need not be cast immediately after the addition of the agent and the cast metal may be remelted and recast and the recast metal will also contain spheroidal graphite.  Ferrosilicon may be added as graphitizing agent. Specifications 645,862 and 718,177 are referred to.
Patent GB-986754-A (GB)
Title: Improvements in or relating to the production of steel
Inventor: SAGE ARTHUR MAXWELL
IPC: C21C5/04
Filed: 1959-11-05
Abstract: Molten steel which is tapped, e.g. at 1600  DEG C., from a basic open-hearth furnace into a ladle has its transverse ductility improved by adding, e.g. in the form of briquettes or packed in containers, a resin-bonded alloy addition composition consisting of by weight 93-99.5% comminuted, e.g. passing a 52 B.S. mesh, ferrosilicon chromium alloy optionally admixed with ferrochromium and 0.5-7% resinous organic binder, e.g. wood rosin or urea-formaldehyde resin, which will rapidly evolve gas in the molten steel, the whole composition consisting of by weight: .Cr.35 -55%, .Si.21.5-46%, .C.up to 2.52%, .Fe.as balance, except for impurities and the gaseous equivalent of the binder.  Examples of ferrochrome alloys are as follows: ..(a).(b) .Cr.60-70%.65-75% .Si.up to 10%.up to 4% .C.2 - 8%.up to 2% .Fe.balance.balance Briquettes not within the scope of this invention are disclosed containing Cr 42-45%, Si 17-20%, C up to 1.25% with balance Fe. Fe-Mn, Si-Mn, Fe-P and Fe-Si alloys may also be added to the molten steel with the composition. Specification 986,753 is referred to.
Patent GB-1189589-A (GB)
Title: Improvements in or relating to Methods and Apparatus for Metal Forming.
IPC: B21D53/16
Filed: 1968-08-07
Abstract: 1,189,589. Sizing; reaming. GROTNES MACHINE WORKS Inc. 7 Aug., 1968 [28 Dec., 1967], No. 37614/68. Headings B3C and B3Q. Apparatus for sizing a workpiece comprises a set of radially acting dies 15 slidably mounted in a cage integral with a cylindrical body 19, a pressure ring 16 slidable along the body and having wedges 36 which engage the rear of the dies to move them radially and hydraulic piston-cylinder assemblies 17 arranged around the body to move the ring. The workpiece is a wheel made from steel stampings welded together and after being sized by the dies 15 the holes therein are reamed by tooling 50. The dies each have replaceable wear plates 28 which co-operate to form a circular die surface in the inner position. The openings 22 for the dies have bronze bearing rings 23, 24. The pressure ring 16 is made of separate rings welded and bolted together and having bronze bushings 33, 34 slidable on the body. The body has longitudinal ribs 20 and a ring 35 is welded to the ribs to provide a guide for the rear bush 34. The wedges 36 have T-crosssection grooves engaged with T-shaped lugs 40 fixed to the dies. This arrangement allows the dies to be retracted by the wedges as they are moved by the piston-cylinder assemblies 17. The forward movement of the pressure ring 16 is limited by the interaction of the dies and the rearward movement by abutment of the wedges 36 on the guide ring 35. Flexible plastics or leather covers 52 are held between the dies by elastic bands to prevent scale or dirt entering between the dies. The apparatus may be arranged with its axis vertical to allow the scale to fall out. The tooling 50 is used for workpieces which require further machining but it is omitted to allow free passage through the apparatus when no machining is required.