baber/WOPTO huggingface dataset:
Patent GB-757718-A (GB)
Title: Improvements in ore treatment methods
IPC: C22B4/00
Filed: 1953-07-21
Abstract: <PICT:0757718/III/1> <PICT:0757718/III/2> <PICT:0757718/III/3> Ores are subjected, before the extraction of metals therefrom, to a preliminary treatment which consists in passing an electric current through the powdered ore and at the same time acting on the ore with a high frequency electromagnetic radiation. Radioactive material present in the ore, or applied as a layer to the electrodes between which the current passes, may provide the electromagnetic radiation. The layers on the electrodes may be protected from erosion by their sheets of carbon or aluminium; natural radioactive material or radio-isotopes, e.g. cobalt 60 or yttrium 89, may be used.  During treatment, the temperature of the ore may be raised by the passage of the current or by other means.  Reference is made to additional treatment of the one with X-rays, infra-red or ultra-violet radiation, ultrasonic vibration, and bombardment with protons, mesons, positrons, neutrons, and electrons.  The treatment is stated to improve the recovery of metals by decomposing complex silicates. The treatment of ores containing gold, silver, platinum, radioactive metals, copper, and lead is mentioned.  As shown in Fig. 4, the ore flows from vibrating hopper 6 between alternately positively and negatively charged plates 2 coated with radioactive layers 10. Fig. 6 shows apparatus in which ore passes between an axially-adjustable rotor 18 and stator 19, the facing surfaces of which are provided with layers of radioactive material; terminals on the parts 18, 19 are connected to a current source.  In Fig. 7, the ore passes through a cylinder 24 inside which rotates a squirrel cage 26 formed from hollow tubes 25; radioactive material is coated on the inside of the cylinder 24 and is also placed inside the tubes 25; positive and negative terminals are provided as shown.
Patent GB-945823-A (GB)
Title: Improvements relating to the production of tubular articles
Inventor: TAYLOR KENNETH
IPC: F16L9/12
Filed: 1961-06-06
Abstract: 945,823. Making plastic pipes &c. EAST LANCASHIRE PLASTICS Ltd. Sept. 5, 1962 [June 6, 1961], No. 20350/61. Heading F2P. In a method of producing tubular articles or lengths of tubing from glass fibre reinforced plastics, a former is heavily coated with a water-soluble material such as glue size and wrapped with a film material e.g. regenerated cellulose, to provide a good surface on which the glass fibre reinforced plastic is laid up, the whole being placed in a bath of water, when the plastic has set, so that the water-soluble layer is dissolved, and the former can be withdrawn. The former may be a tube of metal or cardboard, or of rubber and inflatable.
Patent GB-646760-A (GB)
Title: Improvements relating to the optical measurement and/or calibration of tubular surfaces
IPC: G01B9/02
Filed: 1948-07-30
Abstract: 646,760. Optical gauging-apparatus. BURCH, C. R., WILLCOCKS, M. J., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. July 30, 1948, No. 20366. [Class 106 (ii)] A Michelson interferometer consisting essentially of a light source 1 with a collimating lens 2 to provide a beam of light of narrow angle which is split into two portions by halfsilvered mirror 3 placed at an angle to the beam, with a reference surface 5 and a specimen surface 4 and an eye-piece 6, is modified or adapted for the comparison of cylindrical, elliptical or polygonal forms by the addition of an auxiliary reflecting surface which is so shaped and arranged that the image of the specimen surface as seen by the instrument has nominally the same figure as that of a standard reference surface arranged on the other arm of the interferometer, whereby irregularities of the specimen surface are made visible as interference fringes. As shown in Fig. 2, a gap gauge having faces 7, 8, is positioned with the faces parallel to the optical axis of one arm of the instrument and an auxiliary reflecting surface in the form of a 90 degree prism 9 with reflecting faces 10, 11, is placed between the faces 7, 8, as shown. Light from the source 1 after reflection from the surfaces of the prism 9 strikes the surfaces 7, 8, normally, and is reflected back along the optical axis to the halfsilvered mirror. The combination of the surfaces 7 and 8 of the gauge and the reflecting surfaces 10, 11 of the prism 9 forms an apparently flat image giving rise to interference effects in known manner, the apparent position of the image being the point where the surfaces 10 and 11 of the prism, if extended, would intersect the surfaces 7 and 8 of the gauge. The arrangement shown in Fig. 3 indicates the method of testing a right cylindrical bore, for example a ring gauge. In this case the bore 13 is arranged with its axis in line with the instrument axis and a 90 degree cone of speculum metal 14 or any metal with a reflecting layer 15 is positioned as shown, the combination of the surface of the bore of the cylinder and the cone forming an apparently flat image as before for production of interference effects with the reference surface. In Fig. 4 the converse arrangement is shown with a rod 16 arranged coaxially with an auxiliary reflecting surface 18 in the form of hollow cone 17 with a central aperture to clear the rod 16. Polygonal bores or rods may be similarly dealt with and in some cases a cone of parabolic form may be employed for bores of large diameter. With the apparatus it is possible to inspect a bore and detect any departure from a truly circular shape by observation of the interference fringes. Furthermore, by substituting for the specimen surface a test-piece of known diameter it is possible to measure accurately the bore under test.
Patent GB-856855-A (GB)
Title: Improvements in semi-conductor assemblies with cooling arrangements
Inventor: ROBINSON THOMAS PHILIP
Filed: 1959-06-15
Abstract: 856,855. Semi-conductor rectifiers. STANDARD TELEPHONES & CABLES Ltd. June 15, 1959, No. 20470/59. Class 37 A semi-conductor assembly comprises one or more semi-conductor devices, each device being mounted in a recess in a hollow support member, the recess(es) being formed in a part of the support member having a surface within the support member such that a cooling fluid passing therethrough comes into contact with the said surface in all three dimensions. As shown, Figs. 4, 7, an aluminium support member comprises a channel 3 which adjoins three sides of a block portion 2 of the member 1, the block portion 2 being provided with threaded recesses 4 into which are screwed silicon diodes 8, which may be of the kind described in Specification 835,865. A terminating member 5, also of aluminium, which is welded or otherwise fixed to each end of the member 1, comprises an apertured terminal lug 13 and a recess 6 through which cooling fluid passes on its way to or from channel 3.
Patent GB-270227-A (GB)
Title: Improvements in motor tractors for indoor use
IPC: B60N2/40
Filed: 1926-08-19
Abstract: 270,227. Clark Tructractor Co., (Assignees of Stockfleth, B., and Burger, F. W.). April 29, 1926, [Convention date]. Seats, arrangement of.-In short-base tractors for indoor use having a rear caster wheel 6, an L-shaped dash-board 17 is formed with lateral extensions 19 and with two sockets 23 adapted to receive the ends of springs 26, 27 supporting two seats 30. The seats are adjustable in slots in the part 29 by means of bolts 31.
Patent GB-1123085-A (GB)
Title: Improvements in and relating to conveyor means
Inventor: DEACON JOHN
IPC: B65G13/00
Filed: 1966-05-09
Abstract: 1,123,085. Track brakes. DEMAT Ltd. 27 July, 1967 [9 May, 1966], No. 20538/66. Heading F2E. [Also in Division B8] A braking ramp 5 for a pallet 4 on a gravity rollerway is cantilevered upwardly from a framework tube la, the other end of the ramp being connected to a bellows 7 having a small leak orifice. When the pallet engages the ramp the latter is pressed down at a rate permitted by escape of air from the bellows. A non- return valve may enable the bellows to expand more rapidly after the pallet has passed. In a modification, Figs. 3, 4 (not shown), the ramp is pivoted at one end and is urged upwardly by a compression spring (12). In a further modification, pallets have wheels which run in tracks.
Patent GB-175577-A (GB)
Title: Improvements in furnace feeding mechanism
IPC: F23K3/12
Filed: 1921-08-02
Abstract: 175,577. Marks, E. C. R., (Sanford Riley Stoker Co.). Aug, 2, 1921. Mechanical stoking.-Pairs of rams for feeding underfeed stokers are driven from a common driving-shaft through change-speed gear which enables the rams to remain inoperative or operate at various speeds independently of the other rams of the stoker. The twospeed-gear box shown is driven from a common driving-shaft 17, which runs in bearings 19 designed to prevent the escape of oil from the casing 15. Pinions 27, 28 on the shaft 17 mesh with gears 25, 26, on the worm shaft 21, the two gear ratios shown being approximately 1: 1 and 2: 2. A handle 36 operates a slinidg clutch member 32 on the shaft 17 to put the gears in and out of action, the handle 36 being adapted to remain in its neutral position by a latch pin 38 or in either of its operative positions by its own weight. The pinions 25, 26 drive a worm-shaft 21 and have enlarged bearing surfaces engaging the machined side plates of the gear-box to form a thrust-bearing for the worm. 24 which meshes with a worm-wheel 43 on a shaft 42. The end plates of the gear-box form a thrust-bearing for the worm 43, which engages a worm-wheel 44 on the crank-shaft 14 that drives the rams. The shaft 17 may extend over the whole width of the furnace front, or may be made in sections with flexible couplings.
Patent GB-226258-A (GB)
Title: Improvements in the treatment of ores for the extraction of values
IPC: C22B3/06
Filed: 1923-08-13
Abstract: Ores or concentrates containing one or more metals capable of forming complex compounds, including oxidized or roasted copper and other ores, are treated with a solution of a chloride and sulphur dioxide containing chlorine ion in such excess and of such concentration that the solution remains of sufficient strength to ensure solution of the metals.  The ores may be treated by percolation or agitation with a solution, preferably substantially saturated, of a chloride of an alkali, alkaline earth, or other metal which has been charged with sulphur dioxide; or the ore may be suspended in a saturated chloride solution and agitated with sulphur dioxide or with sulphur dioxide and air. Copper may be obtained as an oxychloride.  After first expelling excess of sulphur oxide, the copper in solution may be precipitated as a sulphide; or by treatment with any oxidizing agent or by agitation with air, the copper may be precipitated as a cupric compound.  Cupriferous gold and silver ores may be similarly treated prior to treatment with cyanide.  In some cases, the ore is mixed with an oxidizing agent, which may be a permanganate, manganese dioxide, or an alkaline nitrate, before treatment with the chloride and sulphur dioxide; or a solution of bleaching powder with sulphur dioxide may serve as a combined chloridizing and oxidizing agent; or a solution containing chlorine and sulphur dioxide may be used.  In the treatment of silver ores, the solution may be diluted with water and the silver chloride recovered on wood shavings.  In some cases, however, a weaker chloride solution may be used to avoid solution of any silver values, these being subsequently recovered by other means.
Patent GB-512358-A (GB)
Title: Improvements in or relating to elevators and the like
IPC: B65G17/14
Filed: 1938-07-12
Abstract: 512,358. Endless belt or chain elevators. SMITH, J. H. W. July 12, 1938, No. 20597. Addition to 475,277. [Class 78 (i)] The arm k to which the table supporting link j is pivotally connected, is not connected rigidly to the belt as in the parent Specification, but is connected to it by a hinge m in order that the arm k, table i and link j may lie closer to the belt on the descending run than on the ascending run.
Patent GB-1512004-A (GB)
Title: Material discharging implements
IPC: B65G67/24
Filed: 1974-05-10
Abstract: 1512004 Manure spreaders MASSEY - FERGUSON - PERKINS Ltd 30 April 1975 [10 May 1974] 20667/74 Heading AID [Also in Division B8] In an implement, suitable for spreading manure, material in a container is pushed by a moving wall towards a rotatable discharging impellor which is positioned at one end of the container. The wall is moved by a fluid pressure actuated thrust device coupled to the wall by flexible tension members led round training members. As shown, a double-acting hydraulic ram 18, coupled to the wall 16 by a chain 70 anchored at bracket 80 and passing round pocket wheels 62, 64, 74 and 76, moves wall 16 towards end wall 92 before loading the container 12 and away from wall 92 during discharge of material from the container 12. Material is discharged through a guide 29 by a rotary impellor 26 carrying flails 28. In alternative embodiments a single-acting ram is used, together with a coiled tension spring for moving the wall away from the impellor, Fig. 2 (not shown); a double-acting ram drives a chain and sprocket mechanism which rotates pocket wheels carrying endless chains attached to the movable wall, Fig. 3 (not shown); a single-acting ram drives a chain and sprocket mechanism which rotates flanged drums carrying wire cables attached to the wall, Figs. 4 and 5 (not shown); the impellor rotates about a transverse axis to discharge material over an end wall of the container, Figs. 6 to 13 (not shown). In all embodiments, the thrust of the hydraulic ram may be transmitted to the movable wall through a rack and pinion device, Fig. 14 (not shown).
Patent GB-299917-A (GB)
Title: Improvements in glareless lamps
IPC: F21V7/00
Filed: 1927-08-05
Abstract: 299,917. Stewart, J. M. Aug. 5, 1927. No Patent granted (Sealing fee not paid). Vehicle and like lamps.- An electric lamp, suitable for use on vehicles or for interior illumination, is provided with a hollow brightly polished recrector K pierced with symmetrically arranged holes L and disposed forwardly of a dark back cell. The back of the reflector K may be bright or dull, and the holes L preferably are circular and pierced in a circular section intermediate the rim and the centre of the reflector K. The rear face of the dark back cell may be formed by painting a dull black, or otherwise rendering light-absorbent, the front face of the standard reflector H, or the interior surface of the lamp casing A when the standard reflector H is dispensed with.
Patent GB-1284822-A (GB)
Title: Method of producing dry bulgarian yoghurt
IPC: A23C9/123
Filed: 1970-09-30
Abstract: 1284822 Yoghurt DSO "SERDICA" 30 Sept 1970 [7 Oct 1969] 20712/70 Heading A2B [Also in Division C6] A process for producing dry Bulgarian yoghurt in solid form comprises inoculating cow, sheep or buffalo milk with (i) the strain Streptococcus thermophilus No. 240 of the Bulgarian State Institute for Control of Drugs, and with (ii) a strain selected from Lactobacillus bulgaricum No. 236 adapted to the conditions of lyophilization and Lactobacillus bulgaricum No. 237 resistant to streptomycin, in a 3:1 ratio of cells, culturing the inoculated milk, enriching the inoculated milk with a culture in milk of the same strain(s) of Lactobacillus bulgaricus, causing the enriched milk to ferment so as to produce Bulgarian yoghurt, freezing the yoghurt and drying the yoghurt. The yoghurt is cooled at a rate of 1‹C per minute to below -25‹C and drying is effected by sublimation/lyophilization. The dry Bulgarian yoghurt is a milk-white powder, which may be tableted, and contains more than 100,000 vital cells of Lactobacterium bulgaricum per milligram.
Patent GB-516984-A (GB)
Title: Improvements relating to crepe yarns and the manufacture thereof
IPC: D02G3/30
Filed: 1938-07-15
Abstract: 516,984. Yarns; treating yarns. DINGLEY, R. M. and DICKIE, W. A. July 15, 1938, No. 21055. [Class 120 (iii)] [Also in Group IV] A crape yarn is made by twisting at least two ends of yarn in the same direction at least one end being twisted in the presence of steam or other hot aqueous medium and at least another end being twisted in the absence of such medium, the ends being doubled together with the same direction of twist in the presence of steam or other hot aqueous medium ; the ends may contain cellulose acetate or other derivative of cellulose. The ends may be simultaneously twisted in a machine arranged to supply steam or other hot aqueous medium to one or some of the ends at parts actually receiving twist, the twisted ends being then collected by parallel winding on a single bobbin which is subsequently employed as the supply bobbin for the second operation of doubling the ends in the presence of steam or other hot aqueous medium; when the yarn consists of two ends, alternate spindles of the first twisting machine may be arranged for the supply of the medium.
Patent GB-729916-A (GB)
Title: An improved spraying attachment
IPC: B05B7/30
Filed: 1953-01-28
Abstract: 729,916. Spray-producers. CURTIS, J. F. S. Jan. 28, 1953, No. 21117/51. Class 69 (3). A spraying attachment for the cap 11 of a liquid container consists of a bracket 1 with screwthreaded air and liquid tubes 2, 5, respectively, passing through clearance holes in the bracket and held in place by lock-nuts. The lock-nuts 6, 7 secure the attachment to the cap and a rubber tube 10 extends into the liquid in the container.
Patent GB-532803-A (GB)
Title: Refuse-collecting vehicles and the like
IPC: B60P1/48
Filed: 1939-07-21
Abstract: 532,803. Vehicle fittings for loading. BURRELL, A. J. July 21, 1939, No. 21172. [Class 78 (iv)] In a refuse-collecting vehicle in which a dustbin or like container is carried by a wheeled support raised in vertical guides on the vehicle by means of endless chains driven from the vehicle engine, and inverted for discharge at the top of the lift, the wheeled support carries hooks engaging the dustbin and the two axles run in different guides, one of which is diverted from the vertical at the upper end to cause tipping. In the illustrated form, the wheeled support is raised and lowered by endless chains 18, Fig. 2, passing round the upper and lower sprockets 19 and driven from the power shaft 23. The upper wheels 1 travel in the guides 16 which curve inwardly towards the vehicle at their upper ends, while the lower wheels 2 travel in the guides 15 which remain vertical throughout their entire length. The wheels are carried by a member 5 having a pivoted member 7 connected thereto, the latter including a sliding member 8 carrying a depending hook 13. A strap 10 on the member 5 limits forward pivotal movement of the member 7 while a rearward projection 11 on the member 8 normally engages a fixed member 12 on the vehicle frame and supports the member 8 in raised position. When the rim of a dustbin is lodged on the hook 14 on the member 7 it pulls the latter forward to the limits of the strap 10. A rearward push applied by the handle of the bin then swings the member 7 backwards until the member 11 is disengaged from the stop 12. The member 8 then falls by gravity until the hook 13 engages the handle of the bin. On operating the chains the bin is raised and tipped automatically into the vehicle body. During the tipping movement teeth 6, 9 on the member 5, 8 engage and prevent relative sliding movement between them which might release the bin from the hooks. On the return of the bin the member 12 automatically reengages the projection 11 and lifts the hook 13 clear of the bin. A spring pin 28 cushions the final downward movement. The apparatus may be used on a sealed vehicle in which the dustbin opens a lid or trap during the emptying process.
Patent GB-1084645-A (GB)
Title: Mining potassium chloride
IPC: E21B43/28
Filed: 1966-05-13
Abstract: 1,084,645. Solution mining. PITTSBURGH PLATE GLASS CO. May 13, 1966 [May 17, 1965], No. 21270/66. Heading E1F. In the solution mining of a subterranean potassium chloride deposit water or a lean potassium chloride solution is fed into a cavity in the deposit at a temperature that is below the boiling point of the water or solution but which will ensure the temperature of the effluent removed from the cavity being within 15C of the natural temperature of the deposit. Preferably the water or solution on entering the cavity may be up to 30C hotter than the effluent which has a temperature within a range of between 40 - 90C.
Patent GB-294481-A (GB)
Title: Improvements in or relating to the circuits of ignition and lighting generators
IPC: B60R16/023
Filed: 1928-07-23
Abstract: 294,481. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). July 21, 1927, [Convention date]. Magneto - - electric machines. - An ignition generator is adapted to supply a lighting circuit by connecting in parallel with the interrupter a group comprising a capacity in series with the lamps. As shown in Fig. 1, the primary winding 3 of the generator has in parallel therewith the usual condenser 4 and interrupter 5, and in addition a condenser 6 connected in series with the lamps 7. A switch 8 and resistance 9 may be arranged to short-circuit the interrupter without extinguishing the lamps. The usual condenser 4 may be omitted. If a battery is employed in conjunction with the generator, the need for a reverse current switch may be avoided by the arrangement shown in Fig. 2 in which a commutator 11 in series with the condenser 6 is connected to the battery 10. In this case, the ignition apparatus may be shortcircuited by disconnecting and earthing both leads from the commutator to the battery by means of the double-pole switch shown, or the condenser itself may be short-circuited. The Specification. as open to inspection under Sect. 91 (3) (a) states that where large currents are required a separate primary winding may be employed. Also that the condenser 6 may be stationary or rotatable and aaranged either inside, or outside the device; also that resistances or self induction coils may be aranged in series with the condenser in the lighting circuit. This subject-matter does not appear in the Specification as accepted.
Patent GB-1102527-A (GB)
Title: Improvements in vtol aircraft arrangements
Inventor: DELLINGER JUERGEN
IPC: B64C29/00
Filed: 1966-05-13
Abstract: 1,102,527. Aircraft lift fans. VEREINIGTE FLUGTECHNISCHE WERKE G.m.b.H. 13 May, 1966, No. 21306/66. Heading B7G. An aircraft wing 1 has a cylindrical passage 2 in which a lift fan 3 is mounted, and the inlet and/or outlet openings of the passage is or are provided with at least six flaps 4 of uniform width evenly spaced about the passage on tangential pivots so as to be movable from a position closing the passage to an open position to thereby form a tubular extension of the passage. In the closed position the flaps extend from the edge of the passage and fit flush against the flat end faces of the fan boss 6, 7 and may engage in grooves on the rims thereof, to be retained therein by locking means. The flaps are opened and closed sequentially, automatically acting interlocking means being provided between the flaps.
Patent GB-1512603-A (GB)
Title: Vehicle having a mechanical arrangement for assisting the operation of a clutch of the vehicle
IPC: G05G5/03
Filed: 1976-05-24
Abstract: 1512603 Clutch control; linkwork AUTOMOBILES M BERLIET 24 May 1976 [23 May 1975] 21349/76 Headings F2L and F2K In a clutch pedal assistor wherein a spring 9 is connected between a fixed pin 10 and a pin 16 carried by a lever 14 which pivots about a fixed axis 11 and a link 5 is connected between pivot pins 6, 15 respectively fast with a suspended clutch pedal 1 and the lever 14, the pins 15, 16 are spaced from each other. The length of the link 5 is adjustable and the positions of the pins 15, 16 on the lever 14 may be adjustable with respect to one another. As shown the pedal 1 actuates a clutch master cylinder 4.