baber/WOPTO huggingface dataset:
Patent GB-1001482-A (GB)
Title: Improvements in or relating to the purification of elements
IPC: C22B9/02
Filed: 1961-08-09
Abstract: Ultra-pure Zn, Cd, Ga, In, Ge, Sn, As, Sb or Bi are prepared from the corresponding impure element by converting the impure element into a corresponding alkyl or alkyl hydride derivative and decomposing it to deposit the desired ultra-pure element.  The alkyl or alkyl hydride derivative may be purified before decomposition by fractional or steam distillation, zone melting or recrystallization. For example, gallium alkyls such as tri-propyl/ butyl-gallium may be heated at 180-200  DEG C. under an inert atmosphere in a quartz flask fitted with a condenser, the separated metallic gallium being freed from any alkyl-Ga by washing with n-hexane which is later decanted off.  An indium regulus may be obtained by heating tri-ethyl/propyl/butyl-indium at 180  DEG C. under a nitrogen atmosphere.  Crystalline antimony may be grown on an internally heated quartz rod or cylindrical graphite from the vapour of tri-ethyl/propyl/butyl-antimony. Similarly tin may be deposited on a quartz rod from tetra-ethyl/butyl tin.  Other examples specify compounds of triethylbismuth diethylcadmium and diethylzinc. Specification 981,685 is referred to.
Patent GB-519810-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J19/38
Filed: 1938-10-04
Abstract: 519,810. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd., and GOODCHILD, F. D. Oct. 4, 1938, No. 28789. [Class 39 (i)] One or more grids is or are formed by winding wire on strips or backbones R', R<3> of flat tape section ; two co-planar strips may be used and the wire forming the grid flattened on to the faces of the strips. Only a single flat strip may be used as grid support if the grid is stiff enough.
Patent GB-223758-A (GB)
Title: Improvements in and relating to automatic valves for adding air, vapour or gas to the mixture of internal combustion engines
IPC: F02D9/00
Filed: 1923-11-17
Abstract: 223,758. Baxter, C. Nov. 17, 1923. Fluid-actuating mechanism. -A valve 31 for admitting air &c. to the induction pipe of an internal - combustion engine, is operated by a suction-actuated tubular diaphragm 41, a cylinder 40 being provided to limit the movement of, and to prevent the collapse of, the diaphragm.
Patent GB-744562-A (GB)
Title: Radiant and like space heaters
IPC: F24C7/06
Filed: 1953-10-21
Abstract: 744,562. Radiant and convector space heaters. RINK, H. L., and SPENCE, R. F. Oct. 18, 1954 [Oct. 21, 1953], No. 29098/53. Classes 39(3) and 126. A space heater comprises an electrically heated rod 6 or a gas heater of bar form supported by vertical end plates 1 between the upper edges of which is an upwardly bowed parabolic reflector 2 with the heater 6 in its axial focus line so that heat is reflected down on to a pair of lower reflectors 9 comprising plane rectangular sheets extending between the end plates 1 at 45 degrees to the axial plane of the parabolic reflector 2 so that heat is reflected out substantially horizontally. Air rises between the reflectors 9, the top edges of which are bent out at 12 and spaced apart and after passing over the heater 6 passes through apertures 23 in the reflector 2 and is deflected out under the edges of a hood 25 spaced above the reflector 2. The floor beneath the heater 6 is protected from heat by a polished channel member 19 extending between the end plates 1 acting as a reflector and carrying a junction box for the heater on its underside. A wire mesh guard 30 may extend along each side of the heater from the lower edges of the reflector 2 to the base of the reflectors 9. However, if the heater is to be placed adjacent, a wall, the latter is protected from the horizontally reflected heat by a flat rectangular reflector plate pivoted at its lower edge to the base of the reflector 9 so that it may lie on the reflector 9 or may be turned outwardly through 90 degrees and be held in this position to reflect the heat upwardly. The reflectors 9 may be adjustable so that the direction of heat reflected therefrom is also adjusted. The ends of the heater 6 are carried by clips 7 in the end plates 1, and removable domed caps may cover apertures in the end plates to give access to the ends of the heater.
Patent GB-1528407-A (GB)
Title: Scrubbing device
IPC: A47L17/00
Filed: 1976-07-13
Abstract: 1528407 Soap holding sponge MARVIN GLASS & ASSOCIATES 13 July 1976 [13 Aug 1975] 29124/76 Heading A4V A scrubbing device 10 comprises an upper frame 12 and a lower frame 14 hinged together by pivot pins 14, said frames 12, 14 defining a compartment 24 for receiving a bar of soap 5, co-operating hooks 20, 22 on said frames whereby said compartment 24 may be releasably closed, two scrubbing rollers mounted on a shaft 44 and having outer coverings 40 of foamed plastics material, whereby the coverings 40 of said rollers engage the bar of soap S to transfer soap to the body, and a pair of front wheels having outer coverings 28 of foamed plastics material.
Patent GB-975538-A (GB)
Title: Improvements in stair carpet fasteners
IPC: A47G27/06
Filed: 1962-07-30
Abstract: 975,538. Spiked plates. M. MORAN. Sept. 17, 1962 [July 30, 1962], No. 29135/62. Heading F2H. A plate for fastening a stair carpet is bent into two parts 2, 3 each with tangs 16 projecting into the included angle and at least one part has a tooth 8 projecting from its face outside the included angle for hammering into the stair tread or riser. The tangs 16 need not be at the edges of the plate. Each end of the plate is bent back at 11 and on the riser part 3 the end is bent again to form a ledge 12 from which extends a pair of bifurcated teeth 8. The tips of the bifurcations are bent in opposite directions to cause splaying. The ledge 12 limits the penetration of the teeth so that the final angle between the parts 2, 3 is less than a right angle and the rising part of the carpet is held forward, Fig. 1 (not shown). A single bifurcated tooth extends down from the bent edge 11 of the tread part 2 without an intervening ledge. To facilitate bending the blank at the angle 1 there is at least one perforation 6.
Patent GB-159567-A (GB)
Title: Improvements in or relating to motor vehicles
IPC: B62D61/08
Filed: 1919-11-24
Abstract: 159,567. Weller, J. Nov. 24, 1919. Tubular and like constructions.-The frame of a motor vehicle consists of a longitudinal girder or tubular member 1 to which a body or goods receptacle 4, the engine 16 and its accessories, the rear axle 17, and the seat pillar 23, are adjustably attached by clamping-members. The body part 4 carries rollers 6 adapted to run on a circular track secured to the longitudinal member by clamps 3, and is pressed on to the track by a spring 8 on its pivot 7. The front axle is attached to springs 9 secured to the body part. The steering-column 13, carried by the clamping-member 15, operates through a toothed wheel 12, in mesh with a segmental rack 11 on the body. The seat pillar 23 is carried by the clamping member 24, which also carries the chain drive gear 27. The brake pedals 32 are carried by a clamping-member 30.
Patent GB-285172-A (GB)
Title: Improvements in or relating to the furnaces of steam generators
IPC: F23M5/02
Filed: 1926-11-19
Abstract: 285,172. Bennis, A. W. Nov. 19, 1926. Smoke, consuming; air, supplying; crowns and roofs; pulverulent and liquid fuel furnaces.-In a chain grate or other furnace the products of combustion are drawn from beneath the arch d<1>, Fig. 1, through one or more conduits f, g and delivered into the combustion chamber c at a height above its base which is at least equal to the length of the combustion chamber as measured from the rear end of the arch d<1> to the rear wall y. The vertical portion of the conduit is provided with partitions k. An air-cooled damper j<1> controls the gases. A damper-controlled air-inlet h<11> is provided in the furnace wall adjacent to the discharge opening h of the conduit. In the modification shown in Fig. 4, the gases are impelled through the conduit by air supplied by a blower p and delivered through a pipe o terminating near the discharge end of the conduit g. The air may be carried through pipes or coils q contained within or around a chamber r forming part of the conduit through which the gases are drawn. In a further modification the air is heated by passing it through a conduit adjacent to the front of the ignition wall e of the arch and thence through a baffled casing surrounding the chamber r.. Fig. 6 shows a furnace in which solid fuel is burnt on the grate a and pulverulent liquid or gaseous fuel is supplied from a burner x. The products of combustion pass through the conduit w from the front of the furnace to the burner. Specification 243,416 is referred to.
Patent GB-708525-A (GB)
Title: Improvements relating to the production of sintered hard metal materials
IPC: C22C29/00
Filed: 1950-11-29
Abstract: Sintered hard metal materials having a final carbide phase containing tungsten carbide, titanium carbide and tantalum carbide are produced by a process in which primary mixed crystals of titanium carbide and tantalum carbide are first formed and the tungsten carbide is subsequently added, the primary mixed crystals of titanium-tantalum carbides being produced by heating powdered mixtures of titanium carbide and ferro-tantalum and carbon, or equivalently, technical tantalum and carbon, with or without nickel or other metal of the iron group and, after extraction from said primary mixed crystals of excess iron and other impurities by chemical treatment, for instance with hydrochloric acid, mixing said primary mixed crystals in powdered form with tungsten carbide, or equivalently tungsten and carbon, to form therewith the final carbide phase, the resultant powdered metal being annealed, pressed and sintered in known fashion. The titanium carbide may be substituted at least in part by zirconium carbide or hafnium carbide and at least part of the tantalum carbide may be substituted by one or more of the carbides of niobium, vanadium, chromium and molybdenum, which carbides may be formed from the corresponding nitrides or oxides during the formation of the primary mixed crystal.
Patent GB-789835-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B7/00
Filed: 1955-10-14
Abstract: 789,835. Photographic cameras. DECKEL, H., and DECKEL, F. W. Oct. 14, 1955 [Oct. 29, 1954], No. 29312/55. Class 98(1) In a photographic camera, a mounting ring is fixed to the camera body co-axially with the optical axis, a shutter unit is fixed to the inner face of the mounting ring; and a lens unit. not directly connected to the shutter unit, is mounted on the mounting ring and extends outwardly thereof. As shown in Fig. 3, the mounting ring 10 is fixed by screws 12 to the camera body 14. A shutter housing 22 has lugs 24, Fig. 1, which pass through recesses in the camera front 14 and are fastened to the mounting ring 10 by screws 28 between the screws 12. The shutter is of conventional type and is set and released by a spindle 32 engaging setting and release means (not shown) within the camera body. The shutter speed is set by a ring 34, which is connected by a lug 44 to a connector 38, which is rotatably connected to mounting ring 10 and is fixed to a shutter speed setting ring 36. The lens unit may be permanently connected to ring 10. but in the embodiment shown the lens mount 52 has lugs which engage bayonet slots in ring 10. The mount also houses an iris diaphragm 60, which is adjusted by a setting ring 62 connected to a coupling ring 68. The ring 68 has a tooth 76 which engages one of a number of recesses 78 on the connector 38. and is movable against springs 72 to disengage tooth 76 so that the relationship between the shutter speed and the diaphragm aperture may be altered..In a modification, the lens is axially movable for focusing in its interchangeable mount, and the focusing movement is transmitted to a range-finder. Specifications 676,075, 769,070, and 769,081 are referred to.
Patent GB-1182632-A (GB)
Title: Improvements in and relating to the Manufacture of Tubular, Heat-Shrinkable Roll Coverings of Thermoplastic Material
Inventor: WESTON WALTER
IPC: B29C61/08
Filed: 1967-06-26
Abstract: 1,182,632. Roll coverings. FLUORODYNAMICS Inc. 26 June, 1967, Nc. 29365/67. Heading B5A. Heat-shrinkable roll coverings may be produced from thermoplastic material by forming a tube thereof, e.g. by extrusion or rolling up a sheet, sealing the end sections thereof, inserting the tube within a cylindrical former, heating the tube and former within a heating chamber, applying fluid pressure to expand the tube to conform with the cylindrical former and cooling the tube. The tube may then be passed over the roll and shrunk thereonto by heating. The material may be a perfluorocarbon polymer, e.g. FEP, heated to 170‹ F. The apparatus, Fig. 1, comprises a chamber 14 having a hollow jacket 17 therearound for heating and cooling media. The chamber may contain one or more cylindrical formers 24 containing tubes to be expanded by air supplied via pipes 29.
Patent GB-785022-A (GB)
Title: Manufacture of cyclo-alkanone-oximes
Filed: 1953-10-23
Abstract: Cycloalkanone-oximes are prepared by bringing together in an aqueous medium a nitro cycloalkane salt and a salt of hydroxymethane sulphinic acid and also an acid in a quantity such that a neutral to acid medium is produced, at a temperature not exceeding 80 DEG  C. The salts may be water-soluble or insoluble salts used in aqueous suspension.  Preferably, the acid is rapidly added to the aqueous medium containing the salt reagents.  If desired, the acid may be mixed with the sodium sulphinate at a low temperature, followed by addition of the salt solution of the nitro compound.  Suitably, about 0.5 to 1.3 mols. of the sulphinate are used per mol. of nitro compound.  An improved result is obtained by the addition of a small amount of hydroxylamine, a salt thereof or a mixture of compounds yielding hydroxylamine such as a mixture of sodium nitrite and sodium bisulphite in aqueous solution, before or after introducing the acid. In an example, aqueous hydrochloric acid is rapidly added to an aqueous solution of sodium hydroxymethane sulphinate and the sodium salt of nitro-cyclohexane at room temperature; thereafter, the pH is adjusted to 6-7 and cyclohexaneoxime is recovered. Nitrocyclo pentane is another specified reagent.
Patent GB-1105128-A (GB)
Title: Production of staple fibre yarns
IPC: G21C1/00
Filed: 1965-07-12
Abstract: Staple (optionally crimped) fibres formed during the conversion of a tow of continuous synthetic e.g. cellulosic such as cellulose triacetate, polyacrylic, polyamide, polyester, polyolefin, vinylic, filaments, by passage between cutting and anvil rollers in a Pacific Converter, are "debonded" or separated by subsequent passage through the nips of successive roller pairs the distance between which is preferably slightly less than the fibre length.  Each pair comprises an upper roll with a hard e.g. steel, helically threaded surface mating with a cushioning roll having a resilient e.g. rubber, surface and the second pair is driven at the faster speed; some fibres are gripped between flat (helical) lands in the first pair (but are not gripped between the second pair) and other fibres are passed without gripping in the helical troughs between the lands in the first pair but are gripped at the second pair, with the result that some fibres are moved longitudinally relatively to other fibres.
Patent GB-152655-A (GB)
Title: A device for the prevention of impulse shocks in fluid feed supply conduits
IPC: F22D11/00
Filed: 1920-10-18
Abstract: 152,655. Allgemeine Elektricitõts Ges., and M³nzinger, F. Oct. 16, 1919, [Convention date]. Fluid-actuated valves. -A relief valve device particularly applicable for the prevention of impulse shocks in fluid feed supply conduits has a chamber which increases in capacity against an increasing load as the pressure rises and has a vent which is opened when a predetermined position is passed. In the form shown in Fig. 2, which shows the device applied to a boiler feed system, the variable chamber g is founded by a piston d acted on by feed pressure admitted through a port b and by boiler pressure admitted through a port a. The piston has a chamber t communicating with the vent t<1> and connected to inlet through an aperture controlled by a valve h loaded by a tension spring e acting through a lever i. The piston may also have a direct spring load. In a modification, the piston is directly loaded and itself closes the vent port.
Patent GB-776253-A (GB)
Title: Improvements relating to methods of and devices for installing anchor bolts and the like
Inventor: IRVING JAMES
IPC: F16B13/06
Filed: 1953-10-15
Abstract: 776,253. Anchor-bolts &c. BAYLISS, JONES & BAYLISS, Ltd Oct. 13, 1954 [Oct. 15, 1953], No. 29449/54. Divided out of 776,251. Drawings to Specification. Class 89 (1). In a method of installing anchor-bolts, the anchor-member is expanded by subjecting it, after insertion into the inner region of a borehole, to an expansive force by a member extending along the bore-hole and to which a longitudinal force is applied from a fluidpressure-operated device. The subject-matter of the Specification is substantially the same as that of Specification 776,251. Specifications 776,249 and 776,250 also are referred to.
Patent GB-1102478-A (GB)
Title: Improvements in and relating to crawler vehicles and tracks for use therewith
IPC: B62D55/088
Filed: 1965-07-13
Abstract: 1,102,478. Bearings. NITTOKU KINZOKUKOGYO KABUSHIKI KAISHA. 13 July, 1965 [13 July, 1964], No. 29680/65. Heading F2A. [Also in Division B7] In an endless-track for a vehicle adjacent track links 1, 1<SP>1</SP> are connected by a pin 3 inserted in spaced relation in a bush 2, a tubular metal bearing member 9 is inserted between the pin and bush, and annular sealing means at each end of the bush seal the space between the pin and bush. The bearing member 9 is formed from a thin plate or wire mesh of brass or bronze. Each sealing means comprises a rubber ring 6, a stainless-steel ring 7 and a synthetic rubber ring 8. The outer surface of the bush 2 may be made wear resistant by high frequency hardening.
Patent GB-647540-A (GB)
Title: Improvements in or relating to bread-making machines
IPC: A21C3/00
Filed: 1947-11-08
Abstract: 647,540. Dough - moulding machines. FREARS & BLACKS, Ltd., and FREARS, J. N. Nov. 8, 1947, No. 29782. [Class 87 (ii)] A bread-making machine is equipped with a reciprocatory ram 34 adapted for intermittent action upon bread dough, either in pieces or in bulk to move, shape, flatten or compress the dough, the body of the ram being made hollow and having at its operative end a pressure portion or plate 42 drilled with holes, the hollow interior of the ram being supplied with compressed air or any other appropriate gaseous medium from a supply, the arrangement being such that gas is interposed between the surface of the plate and the dough to prevent adhesion. The invention is described as applied to the reciprocatory rams 34 incorporated in the machine of Specification 632,352, wherein the rams are used to press together successive vertical folds F formed from a ribbon of dough R fed into troughs T. The outer ends of the holes 43 in the plate 42 may be countersunk or flared. Air is fed through a hose 45 at sufficient pressure to cause it to escape through the holes 43, even when the ram is pressing against the dough.
Patent GB-267048-A (GB)
Title: A new process of manufacturing shoeware
IPC: A43B9/12
Filed: 1926-11-25
Abstract: 267,048. Braun, E. May 15, 1926, [Convention, date]. Connecting uppers to insoles and soles; uppers.-A process of manufacturing shoeware wherein the sole is secured to the upper by an adhesive, is characterized in that a band or tape d, Fig. 1, is sewn to the upper and takes the place of the usual tacking edge. thereby saving upper material. The band or tape is drawn tight over a last by a cord g passing through or attached to the band so that the seam between upper and band is completely covered by the sole when this is stuck on. Braid may be put along this seam for ornamentation if a coloured line is desired. The band d may be attached as in Fig. 2 or as in Fig. 3. In each case the band is drawn tight over a last by cords g. In a modification, Fig. 5, the band is attached at any height desired above the lower edge of the upper. This is of importance in the production of shoes with rubber soles and edges. The tape is first impregnated with rubber at h, h<1> with a visible strip i of glazed rubber. The sole is stuck on as before at one operation.
Patent GB-506322-A (GB)
Title: Start-stop repeater system
IPC: H04L25/20
Filed: 1938-10-14
Abstract: 506,322. Type-printing telegraphy; valve circuits. CREED & CO., Ltd. Oct. 14, 1938, No. 29842. Convention date, Dec. 16, 1937. [Classes 40 (iii) and 40 (v)] A regenerative repeater for start-stop printing-telegraph signals comprises a receiving means controlling a beam of light, means to effect timing of the control of the beam both for the start impulse and for succeeding, code impulses, a photo-electric device activated by the beam and means to transmit signals according to the operation of the photo-electric device. Signals from a distant transmitter 2, Fig. 1, are received by a magnet 3 which, according to the nature of the impulses attracts or releases its armature 11 pivoted at 12. On receipt of the no current start impulse the armature is retracted by a spring 13 and an extension 54 of the armature 11, through a pin 52, releases for rotation frictionally driven cams 15, 30 by means of a stop arm and lever, Fig. 2 (not shown). Resiliently held between the armature arms 11, 14 by springs 21, 22 is an arm 20 carrying a slotted shutter 19 and held in the position into which it was last moved by an arm 25 of a lever pivoted at 26 and whose other arm engages the cam 30. At the centre of the start impulse the lever 25 is moved clockwise by the cam 30 so releasing the lever 20 and, by means of the shutter 19, interrupting a beam of light falling on a photo-electric cell. As each succeeding impulse is received the armature 11 is returned by the cam 15 actuating the lower arm 14 whereupon the armature is either held by the magnet 3 or allowed to drop according to the nature of the received impulse. In each case compression of either of the springs 21, 22 tends to move the arm 20 which, at the centre of the impulse is released by the lever 25. The shutter 19 is so arranged that when it is in the upper position light passes to the photoelectric cell, while when it is in the lower position it interrupts the light beam. The moving shutter 19, in conjunction with a similar fixed shutter, Fig. 3, thus interrupts or allows to pass a light beam 59 directed on a photoelectric cell 8. An amplifying circuit through which the transmitted impulses are passed consists of two series connected valves 9 7, fed from a common potentiometer 60. The bias of the grid 68 of the valve 9 is normally slightly negative allowing a small plate current to flow through contact 74 and resistor 73 to which the grid 77 of the valve 7 is connected. The fall in resistance of the cell 8 when light falls on it causes the bias of the grid 68 to increase to an extent such as to interrupt the plate current. Consequently the potential of the grid 77 increases sufficiently to allow current to flow in the valve 7 which is normally below cut-off and thence to line 5. Thus light falling on the cell 8 produces a marking impulse while darkness produces a spacing impulse, the particular nature of an impulse being determined by the nature of the received impulse while its timing is controlled by the cam 30. Specification 460,150 is referred to.