baber/WOPTO huggingface dataset:
Patent GB-465346-A (GB)
Title: Process for the refining of lead and lead alloys
IPC: C22B13/06
Filed: 1935-10-31
Abstract: Impure lead and lead alloys are treated in the molten condition with sodium and zinc or an alloy or alloys thereof to extract any or all of copper, antimony and arsenic.  Alternatively, copper with or without antimony and arsenic is extracted from impure lead or lead alloys containing zinc by treatment with sodium.  The latter method is particularly suitable for the treatment of lead which has been desilvered by the Parkes process.  Residual sodium may be removed by treatment with steam.  Lead-tin alloys may be treated.  The process may be combined with that described in Specification 465,345. British Specification 171,490, [Class 82 (i)], and U.S.A. Specifications 1,428,041 and 1,925,688 also are referred to. Reference has been directed by the Comptroller to British Specification 171,490, and U.S.A.  Specifications 1,428,041 and 1,925,688.
Patent GB-266803-A (GB)
Title: Improvements in or relating to electrolytic decomposing cells
IPC: C25B9/17
Filed: 1925-11-30
Abstract: 266,803. Lawaczeck, F. Nov. 30, 1925. Electrodes; connections; diaphragms.-An electrolytic cell comprises closely - packed perforated electrodes having opposed surfaces electrically insulated from each other so that electrolytic action is restricted to surfaces of the electrodes which are rearwa.rdly disposed with respect to the insulated surfaces. The abutting or opposed surfaces may be insulated by a coating of enamel, hard rubber, glue, cement, varnish, paint, &c.. or an insulating grid may be disposed between them. Alternatively, a porous diaphragm may be employed which is pressed, for example, against the glue-coated surfaces and these surfaces then have powdered glass or other insulating material applied to them. Many forms of apertured electrodes having pocketed sloping surfaces are described, the pockets either being formed integral with the rest of the electrode by casting, stamping, &c. or being separately secured thereto. In one construction, Fig. 6, the electrodes a, b are separated at their opposed surfaces 10, 11 by a porous diaphragm 18 and a grid 26 of hard rubber &c. An insulating grid may also be located between the electrode b and the diaphragm 18, or the opposed surface of this electrode mav be treated in any of the abovementioned ways. In another construction, Fig. 8, cylindrical electrodes are constructed of slats 27, 28 held between slitted end-rings, the sloping surfaces for directing the gases evolved comprising frustum-shaped strips 36, 37 mounted on the slats 27, 28. The electrolyte is renewed to the active surfaces through tubular sleeves 38 which project below the separated gas streams. Portions of the rearward surfaces of the electrodes may also be treated with insulating material. The slope of the pocketed surfaces on one electrode may be different from that on the other electrode. The concentric cylindrical electrodes are arranged as a tower of cells in a container under pressure, the current passing from the inside of one cell to the outside of the next higher cell. Some of the inner cells may be connected in parallel.
Patent GB-973753-A (GB)
Title: Improvements in or relating to cathode-follower and emitterfollower circuits
Inventor: KANDIAH KATHIRKAMATHAMBY
IPC: H03F3/26
Filed: 1961-08-22
Abstract: 973,753. Cathode follower and emitter follower circuits. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Aug. 16, 1962 [Aug. 22, 1961; Dec. 13, 1961], Nos. 30279/61 and 44703/61. Headings H3T and H3W. In a cathode follower or emitter follower the effective load in the cathode or emitter circuit comprises a transistor J2, Fig. 5, having its collector connected to the base of a further transistor J3, the emitter of which is connected to the base of J2 whilst the output connection is taken from the emitter of J3. This arrangement reduces the output impedance and causes the voltage gain to approach unity. As shown in Fig. 5, changes in emitter current of the emitter follower J1 are fed to transistor J2, the collector load of which is a constant current circuit formed by J4, R7. Negative feedback is provided via J3. The Zener diode D ensures that the voltage between the collector and emitter of J1 remains constant. The integrating circuits R3, C1 stabilizes the system, it is also necessary to use as J2 a transistor with a cut-off frequency much higher than that of J1 and J3. In Fig. 4 (not shown), J4 is omitted and the Zener diode D is replaced by a resistor. In Fig. 6 (not shown), transistors J2, J3 are both of the NPN type and are connected between the positive line E1 and the emitter of J1 Fig. 3 shows the invention applied to a cathode follower V1 having a constant current circuit formed by J5 and R12. Changes in cathode current are fed to J2<SP>1</SP> having negative feedback via J3<SP>1</SP>. The anode-cathode potential is maintained constant by the gas discharge tube V2. Overswing is prevented when feeding a capacitive load by C2<SP>1</SP>, R15<SP>1</SP>. Alternatively an integrating circuit as shown in Fig. 5 may be connected in series with the grid. Expressions are given for voltage gain and for output impedance. The input capacitance may be smaller than 1 pF, particularly if shields are connected to the output instead of to earth. Balanced emitter follower circuits.-Fig. 8 shows two circuits according to the invention feeding a loud-speaker RL. The base-emitter path of a transistor J4<SP>1</SP> is included in the collector circuit of the main emitter follower J1. By connecting the collector of J4<SP>1</SP> to the load, the load voltage can rise to within 0.5V of the supply voltage E3. Constant current collector loads I3, I33 are provided for transistors J2, J22.
Patent GB-863667-A (GB)
Title: Self-loading transport for loose aggregates
Inventor: HAYES DALE IRWIN
IPC: E02F3/64
Filed: 1959-09-04
Abstract: 863,667. Earth-working equipment. AMERICAN ZINC, LEAD & SMELTING CO. Sept. 4, 1959, No. 30285/59. Class 68(1). A loader for the loading, transporting and discharge of loose aggregate consists of a groundsupported bowl 20 having a vertically swingable floor 33 that is pivoted about a shaft 32 mounted between the lower forward ends of the bowl. Also pivotally mounted about this shaft is a second bowl 21 that is open at the front and rear. Pivotally mounted at the front of the bowl 21 about a shaft 39 is a scoop 22. The scoop is swung about the shaft 39 by a winch-actuated cable 50 and drops down due to gravity to load loose aggregate into the bowl 21, which, when sufficiently filled, is swung up about the shaft 32, as the scoop engages stops 52 on the bowl 21 as the cable 50 is fully wound in, to crowd aggregate into the bowl 20. The bottom of the bowl 21 is a curved plate 40 that can be moved forward under the scoop 21 by a rack and pinion mechanism 86, 88 to leave an opening between the shaft 32 and the rear edge of the plate when it is desired to allow the aggregate to be discharged from the bowl 20.
Patent GB-193131-A (GB)
Title: Improvements in and relating to stop-apparatus for the spindles of spinning and twisting machines
IPC: D01H7/22
Filed: 1921-11-15
Abstract: 193,131. McLoughlin, W. C. Nov. 15, 1921. Stop apparatus, non-automatic; spindle apparatus.-Relates to stop apparatus for the spindles of spinning and twisting machines in which hollow tubes mounted on fixed spindles are stopped by a semi-rotary device mounted on the spindle and adapted to remove the driving-belt from the pulley. A disc c, Figs. 1 and 9, provided with a cam-shaped projection g is mounted in the lifting- rail around the spindle so that when it is partly rotated by a pedal f<1> through cords f, e<1>, and a bell-crank lever e<3>, the projection engages the driving-band and removes it from the pulley. A lubricating wad j<2>, Fig. 6, is mounted in a hole in the lifter rail between the spindle and a shank depending from the disc, and lubricant is fed thereto by branches k<1> from a channel k in the lifter rail. An arm m, Fig. 8, prevents undue vertical movement of the wharl.
Patent GB-1008927-A (GB)
Title: Improvements in lubricating systems for the vibratory mechanism of a motor-driven, manually applied working tool-carrying appliance
IPC: E02D3/068
Filed: 1964-08-04
Abstract: 1,008,927. Lubricating. H. WACKER, and P. WACKER. Aug. 4, 1964 [July 19, 1963], No. 30578/64. Heading F2A. In a lubricating system for the vibratory mechanism of a motor-driven manually-applied working tool-carrying appliance, oil supplied thereto is atomized by the movement of a piston and then supplied to the lubrication points as an oil mist. In an embodiment, a connecting rod 1 is driven by a motor and crank drive (not shown) and is connected by a crank-pin 3 to a piston-rod 2 of a piston 4 which is in a cylinder 6 having bores 24 therein and having a rammer foot 5 attached thereto. Springs 8, 9 are respectively located between the piston 4 and an upper end-plate 6<SP>1</SP> of the cylinder 6 and between the piston 4 and a lower end-plate 6<SP>11</SP> of the cylinder 6 which slides in an outer housing 10. The lower chamber of the cylinder 6 is filled to a level line 15 and communicates through holes 16 therein with an annular oil-chamber formed between the cylinder 6 and an outer cylindrical casing 17; a filler socket 18 and a window 19 being provided. The casing 17 is connected to the housing 10 by a bellows 21, which prevents ingress of dirt etc.; a rubber buffer 27 is carried by the piston 4; the foot 5 is prevented from rotating by a member 11, which is connected to the crank-pin 3, being provided with flats 12, 12<SP>1</SP>, Fig. 3, which engage flats 13, 13<SP>1</SP> on the housing 10; and the cylinder 6 is prevented from rotating by rods 14 which are attached to the end-face 6<SP>1</SP> and slide in holes in the member 11. In use, the reciprocation of the piston 4 pumps oil from the lower cylinder chamber through the piston bores 24 into the upper cylinder chamber, bores 25 in the upper end-face 6<SP>1</SP> of the cylinder 6, bores 26 in the member 11 and into a chamber containing the driving transmission in the form of an oil mist. In a modification, the bellows 21 are replaced by sealing-rings 28, Fig. 2, which are positioned between the housing 10 and an upward extension of the casing 17.
Patent GB-856900-A (GB)
Title: Improvements in utilization of nuclear energy
IPC: G21J3/00
Filed: 1958-09-25
Abstract: 856,900. Nuclear power plant. LINDSLEY, T. Sept. 25, 1958 [March 12, 1958], No. 30669/58. Drawings to Specification. Class 39(4). A method of distilling sea water to produce fresh water comprises exploding a nuclear bomb underground to form a heat reservoir which is used to evaporate the sea water ; the steam produced may be used to generate power.
Patent GB-810784-A (GB)
Title: Improvements in and relating to holders for electric lamp bulbs
IPC: H01R33/00
Filed: 1956-10-08
Abstract: 810,784. Lamp-holders. UNITED-CARR FASTENER CORPORATION. Oct. 8, 1956 [Oct. 10, 1955], No. 30675/56. Class 38 (1). In a lamp-holder comprising a cup-shaped insulating casing 18 having mounted in its open end a lamp-retaining shell 24 having fingers 30 adapted for snap-fastener engagement with an aperture 12 in a panel, contact between the shell and a spring 34 in the rear of the housing is prevented by an insulating member 36 which shrouds the forward end of the spring and carries a contact button 48 which, together with member 36 is biased by the spring towards the open end of the housing. Tongues 42 on the shell limit the forward movement of member 36.
Patent GB-1401303-A (GB)
Title: Apparatus for producing a granular material from a solution and or suspension
IPC: B01J2/02
Filed: 1972-06-30
Abstract: 1401303 Pneumatic separator CIBA-GEIGY AG 30 June 1972 [1 July 1971] 30714/72 Heading B2H [Also in Division B5] A solution and/or suspension e.g. of a condensation product of naphthalenesulphonic acid and formaldehyde in water, or of optical bleach in water and glycerine is sprayed from nozzle 19 onto fluidised bed la which is maintained over a perforated base 3 by an air stream through a duct 8 heated by a heater 10. The airstream is also directed up through the perforated base 4 of a sifter chamber 2 at a lower level than the granulating chamber, the air flow in these two chambers being arranged so that the sifter chamber is at a lower pressure than the granulating chamber. The flap 16 is adjusted so that it will lift to allow a proportion of the fluid bed to be drawn off into the sifter chamber where the fines are recirculated by the airstream through the conduit 6, the remainder being discharged through the outlet 31. Optimum fluid bed conditions are arranged by sensing the temperature and pressure drops through the bed, by means of temperature probes 51 and 52 and pressure lines 41 and 42, these being utilised either via temperature controllers 50 and 60 to alter the operation of the heater 10, fluid-bed agitator 17 or spray nozzle valve 190 thus adjusting bed conditions or via the pressure controller 40 to alter the balance of the flap 16 thus adjusting the pressure differential between the two chambers. A filter 22 in the upper part of the granulating chamber removes fines from the flue gas and automatically operated dampers 23-26 cause a periodic reversal of air through the filter to clean it.
Patent GB-1020187-A (GB)
Title: Anodic treatment of zinc and zinc-base alloys
IPC: C25D11/34
Filed: 1964-08-04
Abstract: An anodizing bath for coating zinc and zincbase alloy surfaces consists of an aqueous solution of pH 11-13 containing 0.2-2 mol/1. silicate anion, calculated as SiO3, 0.05-1.5 mol/1. chromate, vanadate, permanganate, molybdate and/or tungstate anions, calculated as CrO4, VO3, MnO4, MoO4 or WO4, and a Na and/or K cation. Alternating current is used for electrolysing using at least one electrode having exposed surfaces formed of Zn or Zn alloy, wherein the current density may be initially 350-1000 ASF until the formation of a film, probably ZnO, is initiated, then reduced to 100-300 ASF, electrolysis continuing until the voltage rises to a terminating value of 55-250 volts with deposition of the anions. To avoid the use of a high current density, the surfaces may be pretreated by applying a thin coat thereto using the process of Specification 876,127 or by applying a phosphate coating by spraying or immersion.
Patent GB-1254712-A (GB)
Title: Colouration process
Inventor: BERRIE ALISTAIR HOWARD
IPC: D06P3/36
Filed: 1968-06-27
Abstract: 1,254,712. Dyeing synthetic textile materials. IMPERIAL CHEMICAL INDUSTRIES Ltd. 4 June, 1969 [27 June, 1968], No. 30762/68. Heading D1B. Synthetic textile materials, e.g. aromatic polyester, cellulose acetate and polyamides are dyed, padded or printed with an aqueous dispersion of a dye of formula I in which A is an optionally substituted aryl radical, X is a hydrogen atom or an optionally substituted alkyl or aryl radical or -CN, -COOR, or -CONR<SP>1</SP>R<SP>2</SP> radical in which R is an optionally substituted alkyl or aryl radical, R<SP>1</SP> and R<SP>2</SP> are each hydrogen or optionally substituted alkyl or aryl radical, or R<SP>1</SP> and R<SP>2</SP> together with the N atom form a 5- or 6-membered ring, the dyes being free of carboxylic and sulphonic acid groups. Red-green-yellow shades are obtained.
Patent GB-198964-A (GB)
Title: Improvements in or relating to belts for personal wear, garters, sock suspenders and the like
IPC: A41F11/16
Filed: 1922-11-10
Abstract: 198,964. Patterson, J. Nov. 10, 1922. Belts; garters; sock-suspenders.-In a belt, garter, sock-suspender or like cincture with an elastic member consisting of a plurality of springs j, the springs are secured to the body of the cincture itself by box-like frames m with coverplates n which engage between the convolutions of the springs and are provided with bent-over tongues p engaging the frames m. An inelastic backing r limits the extension of the spring. Specification 179,486 is referred to.
Patent GB-650206-A (GB)
Title: Improvements relating to vehicle wheel suspensions
Inventor: WILKS MAURICE FERNARD CARY
IPC: B60G3/20
Filed: 1948-11-29
Abstract: 650,206. Steering gear. ROVER CO., Ltd. Nov. 29, 1948, No. 30892. [Class 79 (v)] [Also in Group XXXII] In a vehicle having independently sprung steering wheels carried by upper and lower links whose pivots are rubber bushes, the slight leaning out of the wheel which occurs during cornering owing to " give " in the rubber bushes is rendered ineffective on steering movements by arranging that the swivel connection between the steering arm and its operating rod is located in or near a horizontal plane passing through the neutral point on the wheel carrier, i.e. that point about which the wheel turns when leaning out. As shown, the wheel is journalled on a stub-axle g mounted on a swivel pin held in the wheelcarrier f, which is mounted on upper and lower links a, b. The pivots e and d at each end of the links are rubber bushed, or the like. When cornering, the lateral side thrust causes the wheel carrier to rotate slightly, so that the wheel leans outwardly of the curve. The swivel connection p between the steering arm o and its operating rod q is arranged on the same horizontal level as the point about which the wheel carrier f rotates.
Patent GB-819746-A (GB)
Title: Improvements in or relating to alkyd resins
Inventor: BARNETT GEORGE
IPC: C08G63/48
Filed: 1956-10-11
Abstract: A synthetic resinous drying compositions is obtained by esterifying a copolymer of a vinyl aromatic hydrocarbon (e.g. styrene) and an olefinically unsaturated organic acid containing short aliphatic chains with not more than 8 carbon atoms (e.g. maleic, acrylic or methacrylic acid), either with a mixture of a drying oil fatty acid, a polyhydric alcohol and optionally a saturated polycarboxylic organic acid (e.g. phthalic acid), or with a mixture of drying oil fatty acids partially exterified with a polyhydric alcohol and containing residual hydroxyl groups and optionally a saturated polycarboxylic organic acid.  Particular ingredients disclosed are styrene/maleic anhydride copolymer, linseed oil fatty acids, and glycerol or diethylene glycol. Paints and films may be obtained by the use of solvents and driers.
Patent GB-1110018-A (GB)
Title: Improvements in and relating to compact source mercury vapour discharge lamps
IPC: H01J61/20
Filed: 1965-07-21
Abstract: 1,110,018. Metal-vapour lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 21 July, 1965 [25 July, 1964], No. 31001/65. Heading H1D. The filling of a compact-source mercuryvapour lamp includes a rare gas, the iodides of sodium, lithium, and thallium, and iodine in excess of that bound to the latter elements, the ratio of the distance between the electrodes to the inner diameter of the cylindrical envelope lying in the range 1 : 1 to 1 : 10, and the length of the discharge vessel being at least 25% greater than the distance between the electrodes. The sodium and lithium iodides are each in sufficient quantity to ensure the presence of the liquid compounds at the operating temperature ; the rare gas may be argon or xenon; and indium iodide may additionally be present; quantitative compositions are given. The lamp may have an auxiliary starting electrode, and an exhausted outer envelope (15, Fig. 2, not shown) provided with a coating (17) of infrared reflective tin oxide, and getter rings (16). A further coating (18) of titanium dioxide is provided at the ends of the inner envelope, to maintain the temperature in the neighbourhood of the electrodes.
Patent GB-637480-A (GB)
Title: Improvements in filters for air and gases
IPC: B01D47/02
Filed: 1947-11-25
Abstract: 637,480. Air cleaners. AIR MAZE (GREAT BRITAIN), Ltd., and LOCKER, J. R. Nov. 25, 1947, No. 31182. [Class 8(ii)] In a filter in which incoming gas impinges on an oil surface e in a bath, entrains oil and deposits it on ar element 5 on flowing through, rendering the element 5 sticky to clean the gas, the oil draining then back into the bath, a baffle 2 is provided normally dipping into the oil and having near to and parallel with its lower edge one or more rows of openings 4, 6 or the highest row 4 being always above the oil level to function as flow commences and the others 6 if present becoming exposed in succession as the oil level falls due to increase in flow speed. The plate 2 may be cranked between the rows so that the latter are in different places, the upper edges of two adjacent rows then being in the relationship of two baffle plates. A shorter baffle 7 is arranged opposite the upper part of the element 5 to spread the stream evenly thereon and a central axial conduit 9 provided with apertures in its wall to facilitate flow evenly from the element 5. Specifications 569,423, 637,477 and 637,481 are referred to.
Patent GB-1268758-A (GB)
Title: Improvements in or relating to headlamp grilles and shutters
Inventor: MOLE ALAN DAVID
IPC: B60Q1/05
Filed: 1968-06-29
Abstract: 1,268,758. Protecting guards. WILMOTBREEDON Ltd. 29 Aug., 1969 [29 June, 1968], No. 31194/68. Heading B7B. A frontal grille unit comprises a central fixed radiator grille flanked by two headlamps grilles movable from a position in front of the headlamps to a position behind the radiator grille.
Patent GB-312081-A (GB)
Abstract: 312,081. British Thomson-Houston Co., Ltd., (Assignees of Shanklin. G. B.). May 18, 1928, [Convention date]. Cables, arrangement and disposition of parts of.- An oilfilled, lead-covered, electric cable is formed with shallow circumferential oil grooves 4 connected together by longitudinal passages 5, preferably formed as shown by a corrugated strip 6 wound spirally round the core insulation 2. The cable is completed by a lead sheath 3.
Patent GB-1078820-A (GB)
Title: Method of manufacturing film resistors
IPC: H01C17/07
Filed: 1964-08-04
Abstract: 1,078,820. Resistors. MATSUSHITA ELECTRICAL INDUSTRIAL CO. Ltd. Aug. 4, 1964 [Sept. 6, 1963], No. 31320/64. Heading H1S. A method of manufacturing a film resistor comprises grinding a ceramic base to close dimensional tolerances, subjecting the base to high temperature heat treatment (e.g. 1100‹ C. for 30 minutes) so as to make the base surface microscopically smooth, and then applying a resistive film by known methods. If the base is of rod form to which terminal end caps are fitted, the ends of the rod are bevelled by ballmilling to facilitate the application of the caps and the rod is heat-treated to give a microscopically smooth finish to the bevels. The smooth finish serves to stabilize the resistor with respect to its hours of operation. The resistive film may consist of SnO 2  with Sb as an impurity.
Patent GB-533832-A (GB)
Title: Improvements in thread guides for yarn and like winding-machines
IPC: B65H57/00
Filed: 1939-12-02
Abstract: 533,832. Thread guides for winding-machines. HOLT, Ltd., T., and BRIERLEY, E, Dec. 2, 1939, No. 31340. Addition to 475,215. [Class 120 (ii)] The thread guide of the parent Specification is provided with a metal rod having a hook-shaped end which forms the threadguiding groove. As shown the metal rod 20 having the hook-shaped end 21 is held to the head piece 15 by a spring clip 19 secured thereto ; a foot 23 on the rod 20 prevents the rod turning and ensures the thread-guiding groove 22 being correctly positioned relatively to the notched nose 17 of the head-piece. The rod may be of hardened steel, the clip may have a curl 191 by which it is operated to remove or replace a rod, and the part 15 is inclined outwardly so as to bring the groove 22 close to the nip of the yarn package and the driving drum. The spring clip may be in the form of a sleeve, or the part 15 may have a struckout tongue forming a sleeve in which the rod is secured by friction and, if necessary, a set screw.