baber/WOPTO huggingface dataset:
Patent GB-362347-A (GB)
Title: Improvements in and relating to gaseous electric discharge devices
IPC: H01J17/06
Filed: 1930-07-23
Abstract: 362,347. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Foulke, T. E. ; 30, Evelyn Place, Nutley, New Jersey, U.S.A.) July 23, 1930, No. 22211. Convention date, July 27, 1929. [Class 39 (i).] One electrode of a gaseous discharge device comprises an open metal cone 5 coated internally with alkaline oxide reduced at the surface to the alkali or alkaline earth metal. The discharge starts at low voltages with the electrode 5 cold and a concentrated negative glow is produced in the cone. The other electrode may be an uncoated metal strip 4 carrying a tab 7 for magnesium. The electrodes are cleaned and are heated in vacuo or in hydrogen. The electrode 5 is then coated internally by spraying or painting with an alkaline carbonate, nitrate, or other compound decomposable to form the oxide, a carbonaceous binder such as collodion or a solution of celluloid in amyl acetate being used. The electrodes are mounted in the bulb 1, the bulb is heated and evacuated and the metal parts are heated by high-frequency induction to decompose the carbonate, to drive off gases occluded in the elec- . trodes and to vaporize magnesium from the lower side of the tab 7 on to the lower part of the bulb 1. Argon, helium, neon, or a mixture such as neon containing À25 per cent of argon, is then introduced at 30 mm. pressure, the bulb 1 is sealed and a high-frequency discharge is produced between the electrodes to reduce the surface of the oxide to the alkaline metal. The leads 2, 3 may be connected to a screw cap and one may include a ballast resistance. Specification 362,346 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a lamp with two parallel plate electrodes spaced at their upper ends by a glass bead, coated with alkaline material on their surfaces facing away from each other and treated as above described and refers to fillings of mercury vapour. This subject-matter does not appear in the Specification as accepted.
Patent GB-471450-A (GB)
Title: Improvements in or relating to closure caps for bottles, jars, and the like containers
IPC: B65D41/04
Filed: 1936-08-13
Abstract: 471,450. Stoppers for bottles and jars. ARMSTRONG, J. J. V. (Phoenix Metal Cap Co., Inc.) Aug. 13, 1936, No. 22291. [Class 125 (iii)] Caps for bottles &c. of the double-shell . type, i.e. those having a smooth exterior, and a threaded interior both of sheet metal, are formed from polygonal blanks having, e.g. six sides 10. The blanks are then stamped into cylindrical form, the surplus material at the apices of the polygon overlapping to form a series of beads 14, over which the outer shell is curled to prevent relative rotation of the outer and inner shells.
Patent GB-1298398-A (GB)
Title: Improved arrangement for feeding pressure medium into a rotatable cylindrical component
IPC: B23B31/30
Filed: 1970-05-08
Abstract: 1298398 Chucks SMW SPANNEINRICHTUNGEN SCHNEIDER & WEISSHAUPT 8 May 1970 [12 May 1969] 22307/70 Heading B3B [Also in Division F2]  An arrangement for supplying pressure medium into a cylinder, e.g. for a pressure operated chuck or clutch, comprises a stationary ring component 3 surrounding a rotatable body 1 and being connected to a pressure medium supply 6, a gap 5 separating the outer surface 2 of the body and the inner surface of the ring component 3, and sealing elements 13, 14, 15, 16 in recesses 11, 12 in the ring component on each side of a supply duct 8 or 9. The invention is characterized by providing one or more connecting lines 17, 17<SP>1</SP>, 18, 18<SP>1</SP> from the ducts 8 or 9, or separate pressure medium lines 22, to supply pressure medium into the recesses 11, 12 to press the sealing elements 13, 14, 15, 16 on to the surface 2 of the body 1. Restriction 19 or orifice plate 20 ensure an initial pressure build up to move the sealing elements, or alternatively the through-flow section of the connecting lines 17, 17<SP>1</SP>, 18, 181 are made greater than that for the ducts 8 or 9.
Patent GB-696584-A (GB)
Title: Improved wired broadcasting systems
Inventor: GABRIEL RALPH PARTON
IPC: H04H20/83
Filed: 1950-09-11
Abstract: 696,584. Distributing music &c. COMMUNICATIONS PATENTS, Ltd. Dec. 11, 1951 [Sept. 11, 1950], No. 22360/50. Class 40 (iv). [Also in Group XVIII] In a wired broadcasting system, a particular programme is limited to subscribers who effect, in response to a control signal which prevents the satisfactory reception of the programme, a certain operation, e.g. inserting a coin or token, which is arranged to complete the programme circuit and give a permanent indication of all such limited programmes accepted by each subscriber. The energization of a coil 11, Fig. 1, by a direct current from a battery 8 at the control centre opens contacts 21 to disconnect loud-speaker 15 from the lines 6. The armature 22 of a coin-freed mechanism, Fig. 2, is attracted by coil 11 and an arm 24 carrying a coin-shoot 28 is moved so that a ratchet-wheel 26 is stepped by a pawl 25 and the shoot is directly over contacts 19 which are short-circuited when a coin is inserted. The face of the ratchet-wheel holds a paper disc 39 and a pin 38 marks a circumferential trace when the wheel is fed forward. An inwardly extending trace such as 46 is made when a reversed direct current control signal energizes coil 12 and swings the shoot holding a coin away from the contacts 19. Had the subscriber not elected to receive the programme, pin 34 on lever 35 would have entered a cut-away portion of the shoot and no mark would have been recorded. A push-button switch for completing the circuit to a restricted programme which also punches a card suitable for automatic accounting is also described and a a further modification includes the use of cards or checks having punchings or cut-away portions constituting a key for use with a set of feeler contacts.
Patent GB-754290-A (GB)
Title: Improvements in locking means for sliding seats
Inventor: CORBER FREDERICK HENRY
IPC: B60N2/07
Filed: 1954-07-31
Abstract: 754,290. Adjustable sliding seats. HALLAM, SLEIGH & CHESTON, Ltd. Oct. 1, 1954 [July 31, 1954], No. 22403/54. Class 52(2). In a slidable vehicle seat having two side runners 2 working in guide channels 3 and locked in position by a peg 7 or 8 entering one of a series of holes 6, the pegs 7 and 8 being mounted on a common operating member 9, at least one of the pegs (peg 8 as shown) can move relatively to the operating member 9 so that, should it foul its hole, the other peg 7 can enter its hole. As shown, the operating member is pivoted in the runners 2 at 11 and 12 and the peg 7 is rigidly mounted on an extension of member 9 beyond the pivot 11. The peg 8 however is mounted on a lever 14 also mounted on pivot 12 and extended beyond this pivot so that the operating member can bear on it to withdraw the peg but does not force the peg into the holes 6. Spring 15 urges peg 8 into the holes and spring 13 acts on the member 9 and peg 7. In modifications, both pegs can be mounted as is peg 8, and the operating member can be mounted on the channels 3 and the holes formed in runners 2.
Patent GB-987860-A (GB)
Title: Improvements in or relating to gas governors
Inventor: BEEVERS ERNEST ARTHUR
IPC: G05D16/06
Filed: 1961-06-21
Abstract: 987,860. Valves. PEEBLES & CO. Ltd., and R. & A. MAIN Ltd. June 21, 1962 [June 21, 1961], No. 22415/61. Heading F2V. The outlet 3, Fig. 4, of a weight-loaded diaphragm-type gas-governor has an auxiliary passage leading to a pilot burner via a duct 13, flow to which is controlled by a tapered movable closure member 16, Fig. 3. The stem 17 is threaded into the outer end of the passage and embodies a knob 18 within a movable peg 19 engageable with a body abutment 20; an axially slidable resilient sealing ring 21 is disposed on the stem. The valve may be dismantled upon withdrawing the peg 19. In a modification, the auxiliary passage includes a tapered part 24 leading to a cylindrical portion 25 which to close the passage is engaged by a push-actuated closure member formed by a ring 26 between flanges 27, 28 on the stem 12. The inner end of the latter is partially cut away to provide for the flow of gas to the duct 13 when the ring 26 is unseated. The closure member and stem may be withdrawn upon removing a screw 33.
Patent GB-1303420-A (GB)
IPC: B65G47/71
Filed: 1971-04-19
Abstract: 1303420 Transferring dough lumps between conveyers MACHINENFABRIEK W VAN DIJK NV 19 April 1971 [26 Feb 1970] 22430/71 Heading B8A Articles, e.g. lumps of dough being fed in a single stream at 1 successively engage a member 14, 15. This is pivoted about an axis 6 and is connected under the conveyer to a plate 9. The latter pivotally (at 11) carries a member 16 which is centred at its opposite end by springs 17, 17. When the member 14, 15 is in the position shown, the loading article engages its portion 15 and in so doing, urges the member 16 against a switch 21. This energizes a motor 26 which causes the member 14, 15, to be swung into a position in which it deflects the articleinto a conveyer channel 3, and then reaches a pcsition of equilibrium in which the next oncoming article engages the portion 14 when the latter action occurs, the member 16 is pushed against a switch 28. This causes the motor 26 to return the member 14, 15, to its previous position and so on. Instead of switches energizing a fluid motor, valves &c. may be used to control solenoids &c.
Patent GB-1452908-A (GB)
Title: Liquid ring pumps
IPC: F04C19/00
Filed: 1973-05-11
Abstract: 1452908 Centrifugal separator PLESSEY CO Ltd 30 April 1974 [11 May 1973] 22511/73 Heading B2P [Also in Division F1] In a liquid-ring pump for separating gas and liquid mixture comprising a substantially oval chamber 8 containing a rotor having a central hub 10 and radiating vanes 12, the interstices between the vanes are partially filled by masses 30, e.g. of brass or mild steel, to raise the stall pressure of the pump and increase its efficiency. The masses preferably extend to the inner surface of the liquid ring at its minimum radius. Gas and liquid mixture enters via port 18. Gas leaves via ports 20 whereas the liquid leaves via outlets 22, 23 and a common outlet line 26 provided with a restrictor 28 for limiting the liquid discharge. The masses 30 serve additionally as weirs and prevent direct axial migration of liquid from the inlet port 18 to one of the gas discharge ports.
Patent GB-777792-A (GB)
Title: Improvements in or relating to automatic continuous pellet feeding mechanisms for compressed gas operated fire-arms
IPC: F41B11/51
Filed: 1955-08-05
Abstract: 777,792. Air guns. MAROCCHI, S. Aug. 5,1955 [Aug. 11, 1954], No. 22544/55. Class 119. In a pneumatically operated rifle or pistol, pellets 10, Fig. 3, contained in a tubular magazine 28 are automatically fed to the barrel 8 by means of a lever 21, Figs. 2, 3 pivoted at 20 for lateral movement and actuated by a tail 25, Figs. 1, 2, on the trigger 24 during each pull thereof, the trigger also carrying a pivoted seat 26 adapted to retract and subsequently release a spring-urged ram 4 which, on forward movement, opens a valve 16 to release compressed gas from a reservoir 2 to the barrel 8. The lever 21 is pivoted in a lateral slot 12 in the housing and on pulling the trigger, the lever is moved inwardly to push a pellet along a bore 19 from which it falls through a bore 17 to the barrel. At the same time the sear 26 pushes back the ram 4 against the action of a spring 7 by engagement with a shoulder terminating a tapered portion 27. The sear rides up the tapered portion 27 until depressed out of engagement with the shoulder, the ram then being moved forward by the spring 7 so that a plunger 5 on the ram engages a tail 15 of the valve 16 to open it against the action of its spring. Compressed air then passes through a bore 13 and bores 17, 18 to the barrel to fire the pellet. Springs acting on the sear 26 and lever 21 restore these parts to their next positions.
Patent GB-336322-A (GB)
Title: Improvements in or relating to loud speakers
IPC: H04R7/00
Filed: 1929-07-23
Abstract: 336,322. Harris, A. W. July 23, 1929. Loud - speakers; magnetic instruments; diaphragms.- A loud-speaker comprises a stretched sheet of material 1 vibrated by a light cone 3 having its base secured to the flat diaphragm 1, the cone being vibrated by an amplitude reducing device connecting the apex of the cone with the prime mover. The amplitude reducing device consists of a lever 5 pivoted at 9 with a moving coil drive at 6, the cone 3 being connected to the lever 5 at a point between the pivot and the moving coil. The diaphragm 1 consists of a sheet of linen stretched tightly over the wooden frame 2 and may be tautened by the application of dope.
Patent GB-1467357-A (GB)
Title: Halogenating thermoplastic polyolefins
IPC: C08F8/22
Filed: 1974-05-21
Abstract: 1467357 Halogenating polyolefins GENERAL ELECTRIC CO 21 May 1974 [28 June 1973] 22663/74 Heading C3P Halogenated polyolefins are prepared by (a) mixing particles of thermoplastic polyolefin material with particulate filler while melting surface portions of the polyolefin particles within an atmosphere comprising vaporous halogen thereby reacting halogen with the melting surface portions of the polyolefin particles, and removing the resulting combined filler and molten halogenated polyolefin from the particles by the mixing action and (b) continuing the mixing, melting, combining and removing to effect progressive halogenation of the polyolefin material. In a modification the particles of polyolefin may be obtained by fragmenting a mass of molten polyolefin and may be maintained in the molten state. The filler may remain in the product or may be removed by solvent extraction, e.g. with water when the filler is a water-soluble crystalline salt. Other materials, e.g. curing agents and antimony oxide, may be present during or added after halogenation. The polymer may be derived from ethylene, propylene, butene, pentene, hexene or butadiene, or may be an ethylene/vinyl acetate copolymer. Many suitable fillers are specified and examples describe the chlorination of polyethylene in the presence of clay, silica or a mixture of wood flour and carbon black. The halogen may be diluted with inert gases, and sulphohalogenated products may be obtained by halogenating in the presence of sulphur dioxide.
Patent GB-912931-A (GB)
Title: Improvements in and relating to two-stroke internal combustion engines
IPC: F02B37/00
Filed: 1961-06-22
Abstract: 912,931. Two-stroke engines. GOTAVERKEN A. B. June 22, 1961 [June 30, 1960], No. 22699/61. Drawings to Specification. Class 7(2) A two-stroke internal combustion engine of eight or a greater even number of cylinders arranged in-line is characterized in that the engine, with respect to the exhaust gas and air supply piping system, is divided into two separate halves each provided with an exhaust gas turbine driven compressor and in that the crank-shaft provides a firing order with uniform firing intervals and alternate ignitions in each engine half. Between each engine half is a separate member which houses the driving means for the camshaft.
Patent GB-237130-A (GB)
Title: Improvements in tennis net webs
IPC: A63B61/00
Filed: 1924-09-26
Abstract: 237,130. Waters & Co., Ltd., J. & E., and Mills, L. Sept. 26, 1924. Lawn-tennis and like nets.-A web A for the top of a tennis or like net B is provided with two rows of lacing eyelets A, one adjacent each edge. The web is folded over the straining rope B' and is attached to the upper meshes of the net by a cord C passing through the eyelets. The eyelets are preferably reinforced by stitches.
Patent GB-590565-A (GB)
Title: Improvements relating to clips for price tickets and similar articles and for other purposes
IPC: G09F3/16
Filed: 1945-02-13
Abstract: 590,565. Clips. JONES, P. Feb. 13, 1945, No. 22745/44. [Class 44] A clip adapted to form a backstay or hanger for a display article 6 and comprising a member bent from a single length of sufficiently resilient material in such a manner as to form a spring loop 1 with limbs 2 that cross one another and extend outwardly and terminate in hooks 5, is combined with perforated or otherwise prepared non-integral clips or fittings 10 into which the hooks engage. The clip may also comprise a ring or other means to hold the limbs close to one another at their crossing point while allowing them to slide freely, such means carrying or forming part of a depending device adapted to slip under the bottom edge of the display article.
Patent GB-199292-A (GB)
Title: Free-wheeling mechanism for steam locomotives and methods of operating said locomotives
IPC: F01L29/06
Filed: 1922-08-21
Abstract: 199,292. Barraclough, J. C., and Holmes, J. F. Aug. 21, 1922. Driving-gear.-The connecting-rod of a steam engine is divided into two parts 12, 4, the part 12 being secured to the crosshead and the part 4 to the driven member. The part 4 is pivoted to a slotted link 8 pivoted at 9, while the outer end of the part 12 slides in a slot in the link. By means of a hand-operated linkage, the part 12 can be moved along the link from the fulldrive position shown into intermediate positions to vary the stroke until it reaches the top of the link when the driven member can revolve without reciprocating the piston.
Patent GB-1133376-A (GB)
Title: Semiconductor device and method of making same
IPC: H01L25/07
Filed: 1966-05-23
Abstract: 1,133,376. Semi-conductor rectifiers. RADIO CORPORATION OF AMERICA. 23 May, 1966 [9 June, 1965], No. 22856/66. Heading H1K. A plurality of junction-containing semiconductor wafers are bonded in series in a stack by intervening conductive layers, the lateral surfaces of the wafers being protected by oxidic insulating material overlying which is a different insulating material. Suitable semi-conductors are silicon, germanium, and A<SP>III</SP>B<SP>V</SP> compounds such as gallium arsenide. Junction-containing wafers 10 may be produced from wafers of one conductivity type by single or double diffusion or by epitaxial growth. Conductive material 24 may be applied as a foil to one side of each wafer, or a conductive layer may be formed by evaporation, plating, spraying on a suspension of powdered material, or by dipping the wafer in powdered material. Conductive materials mentioned are chromium, niobium, palladium, platinum, silver, tantalum, titanium, or zirconium, and germanium and germaniumsilicon alloys. The wafers 10 are stacked between degenerate wafers 22, 23 and hot pressed in the neutral or reducing atmosphere of an induction furnace at specified temperatures and pressures to bond the stack by diffusion of conductive material into the semi-conductor. Grooves are then formed in the stack (Figs. 5, 6, not shown) by chemical or electrolytic etching, sawing, grinding, or ultrasonic machining to produce several stacks of square or circular cross-section united at one end by the remaining material of one of the degenerate wafers 22. As illustrated in the remaining Figures (not shown) an overall silicon dioxide coating (44) is formed by oxidation of the semi-conductor (when appropriate), by evaporation of the oxide, by decomposition of organosilanes, or by hydrolysis of hydrides or halides. (With germanium and gallium arsenide bodies the silica coating may contain phosphosilicate, borosilicate or lead silicate materials.) The grooves are now filled with glass (46) by pressing softened glass against the stacks (or by sedimentation or vapour deposition) and separate stacks produced by cutting through the glass and degenerate substrate. The degenerate material at each end of a stack is exposed, metal-plated (e.g. with nickel by electroless plating), and solder-coated. Electrode blocks (66, 68) of silver or copper are then attached. The stack is completed by a coating (70) of epoxy resin or silicone resin.
Patent GB-170952-A (GB)
Title: Improvements in lawn mowers
IPC: A01D57/01
Filed: 1920-08-03
Abstract: 170,952. Cole, H. P. Aug. 3, 1920. Lawn - mowers.- A non-rotary brush for brushing the grass and breaking up worm casts &c. is adjustably fixed in front of the rotary cutter of a lawnmower by means of bolts and slotted brackets. The brush A may be of bass, whalebone, &c. It is shown fastened to the mower axle C by slotted brackets B and U- shaped bolts D.
Patent GB-785602-A (GB)
Title: Improvements in or relating to extraction of uranium from its ores
Inventor: ARDEN THOMAS VICTOR
IPC: C22B60/02
Filed: 1948-08-31
Abstract: Uranium is extracted from phosphatic ores containing it by treating the ore with sulphuric acid of substantially 1.84 specific gravity, to decompose phosphates present and form a system comprising a liquid sulphuric acidphosphoric acid phase and a solid phase containing substantially all of the uranium from the ore, and thereafter separating the solid phase from the liquid phase and working it up to recover uranium.  The solids are preferably separated from the liquid by centrifugal means and afterwards taken up with water to dissolve the uranium and the solution treated with a soluble barium salt and filtered.  The remaining solution is then treated with sodium hydroxide, ammonia or magnesium oxide to precipitate metals, including uranium, as hydroxides.  Thereafter the separated and washed hydroxides are brought into nitric acid solution, from which the uranium may be extracted by means of diethyl ether or other organic solvent. According to an example, monazite was treated with sulphuric acid and heated to 220 DEG  C. for two hours, and after cooling the solids were separated from the liquid.  The solids were taken up with water and the resulting solution after dilution, was treated with gelatin and barium nitrate, the barium sulphate so formed acting as a collector for the mesothorium and the gelatin floculating the silica present.  The filtrate was treated with caustic soda and the precipitate obtained after washing was taken up in nitric acid leaving an insoluble residue of thorium and ceric phosphates.  The insoluble residue was, after separation, boiled with caustic soda, filtered, washed, dissolved in nitric acid and returned to the main solution.  The combined solutions, optionally in the presence of a salting out agent such as ammonium nitrate, were subjected to a solvent extraction with, for example, a mixture of diethyl ether, tetrahydrosylvane and nitric acid, the acid being present to reduce extraction thereof from the aqueous phase.  The residual aqueous solution may be treated for the recovery of thorium and rare earths whilst the organic phase contained uranium, thorium and cerium.  The uranium may be recovered for example by treating the organic solvent phase with water to obtain an aqueous solution from which the uranium may be precipitated with hydrogen peroxide as uranium peroxide.  Specification 781,721 is referred to.
Patent GB-358631-A (GB)
Title: Improved means for dispensing the contents of collapsible tubes or containers
IPC: B65D35/28
Filed: 1930-07-30
Abstract: 358,631. Collapsable tubes or containers. ERRIG, W. F., 4821, C. Street, Philadelphia, U.S.A. July 30, 1930, No. 23002. [Class 11.] Relates to means for extruding the contents of collapsable tubes or containers for dentifrice, shaving-cream, &c., of the kind comprising a holder for the tube, and pivoted pressure - exerting plates adapted to bear on the sides of the tube. The holder comprises a prefer. ably tapered casing 1, which can be suspended by means of a key-hole slot engaging a screw 10 or other support, and has a hinged cover 2. The bottom wall 6 of the holder is dished and apertured to receive the neck of a collapsable tube 8. Two pressure-plates 14, pivoted on a pin 13, can be moved towards each other by means of finger-pieces 15, which pass through a slot 17 in the cover 2 and retain it in closed position. The lower end of the holder can be closed by a hinged cap 20, which covers the neck of the collapsable tube. The pressure-plates 14 may be in the form of a unitary member comprising two plates, which tend to spring apart, and are connected by a tubular section, which engages the pivot pin 13.