baber/WOPTO huggingface dataset:
Patent GB-466284-A (GB)
Title: Improvements in detinning substances, in particular waste, containing tin
IPC: C22B25/06
Filed: 1935-12-03
Abstract: Tinned materials, particularly waste, are detinned with simultaneous production of oil solutions of tin by treating the tinned materials at temperatures above 50 DEG  C., preferably above 100 DEG  C., e.g. at 150--200 DEG  C., if desired under pressure, with tars, mineral oils, products obtained from coal, tar or mineral oil by distillation, extraction or hydrogenation, or their heavier fractions, with which, if their content of substances capable of dissolving tin (i.e. phenolic substances or naphthenic acids) is not sufficient, substances of the said kind are admixed.  The process may be combined with a subsequent thermal treatment of the oil or tar, e.g. at 250--500 DEG  C., particularly by destructive hydrogenation, advantageously under increased pressure of hydrogen, e.g. 50--500 atmospheres, the tin content of the oil used being adjusted by appropriate proportioning of the time of action of the oil on the tinned material, or by dilution of the oil enriched with tin with fresh oil.  Coals may be triturated with the tin-containing tars or oils and the resulting pastes, preferably containing 0,1--3 per cent of tin may be subjected to destructive hydrogenation, advantageously in the presence of halogen, halogen hydride or metalloid or ammonium halides.  In an example, tin sheet scraps are heated with a middle oil of low temperature tar.ALSO:Tinned materials are detinned with simultaneous production of oil solutions of tin by treating the tinned materials at temperatures above 50 DEG  C. with tars, mineral oils, products obtained from coal, tar or mineral oil by distillation, extraction or hydrogenation, or their heavier fractions, with which, if their content of substances capable of dissolving tin (i.e. phenolic substances or naphthenic acids) is not sufficient, substances of the said kind are admixed.  In an example, tin sheet scraps are heated with a middle oil of low temperature tar. The process may be combined with a subsequent thermal treatment of the tar or oil, e.g. at 250--500 DEG  C., particularly by destructive hydrogenation, advantageously under increased pressure of hydrogen, e.g. 50--500 atmospheres, the tin content of the oil used being adjusted by appropriate proportioning of the time of action of the oil on the tinned material, or by dilution of the oil enriched with tin with fresh oil.  Coals may be triturated with the tincontaining tars or oils and the resulting pastes preferably containing 0,1--3 per cent of tin may be subjected to destructive hydrogenation, advantageously in the presence of halogen, halogen hydride or metalloid or ammonium halides.
Patent GB-1500832-A (GB)
Title: Electrical switchboard
IPC: H02B1/21
Filed: 1975-08-12
Abstract: 1500832 Switchboard bus-bars GENERAL ELECTRIC CO 12 Aug 1975 [26 Aug 1974] 33514/75 Heading H1N In a switchboard having a plurality of compartments with vertical bus-bars to the rear, horizontal bus-bars behind these, and bolted connections at their phase intersections, isolation is enhanced by providing insulating panels fore and aft along the length of the vertical bars, insulation along at least the rear face and upper and lower edges of the horizontal bars, and removable insulating caps over the bolt heads at the joints. The construction disclosed in Specification 1,482,452 may be used, the vertical bars being located in channels formed by integral ribs on an insulating mounting panel, the open rear sides of the channels then being closed by a further insulating panel with apertures to accommodate U-shaped connectors which are brazed to the vertical bus-bars and bolted to the horizontal ones (Fig. 3, not shown) The rear insulating panel is secured to the ribs of the front panel and in turn has transverse insulating channels secured to its rear face to accommodate and embrace the horizontal bus-bars which have an insulating strip affixed to their exposed rear faces. Aper tures in this insulating strip are provided for the clamping bolts at the joints, these bolts having externally-threaded washers, over each of which an insulating cap is screwed (Fig. 5, not shown) to insulate the bolt head.
Patent GB-174500-A (GB)
Title: Electric lamp and switch holder
IPC: H01R33/955
Filed: 1920-11-27
Abstract: 174,500. Rutherford, A. P., and Haddow, A. N. Nov. 27, 1920. Holders. - A combined lamp-holder and switch comprises a casing made in two parts A, E permanently connected together but capable of relative rotation, an interior contact carrier made in two parts C<1>, K, grooves M, N at right-angles in the upper face of the lower part K, and contacts P arranged in the groove M so that a positive make-and-break connection is effected with fixed contacts R- in the part C<1> of the carrier by continued rotation in either direction of one of the parts A, E. A knurled ring F on the part E of the casing facilitates rotation of the switch. The two parts of the contact carrier are prevented from rotating in the corresponding parts A, E of the casing by projections B, G in the casing. A spring D presses down the contact carrier in known manner. According to the Provrsional Specification, the casing may comprise one part only, and the contact carrier three parts, the middle one of which is slidable radially to bring the contacts into and out of register.
Patent GB-982887-A (GB)
Title: Improvements in load-lifting apparatus
Inventor: LIGHTOWLER LESLIE ERNEST
IPC: B66F7/02
Filed: 1962-09-04
Abstract: 982,887. Garage lifts. LAYCOCK ENGINEERING Ltd. Sept. 4, 1963 [Sept. 4, 1962], No. 33774/62. Heading B8H. In a garage lift comprising tracks 27 mounted on I-section members 26 secured between beams 17 which are vertically movable on columns 11, safety members 33, supported by hooks 34 on plates 29 secured to the members 26, are adapted to actuate microswitches 32 on engaging an obstruction to open the drive circuit of the motor. The members 33 comprise expanded metal sheets with the edges bound with U-section metal and extend over the length of the tracks 27. Safety members 36 are pivotally connected between the members 33. In operation, when one of the safety members engages an obstruction, one of the members 33 rises causing a hook 34 to engage the operating ball 43 of one of the microswitches 42. The hooks 34 are provided with tubular extensions 39 tapped for the reception of adjusting screws 41 and housing supporting springs 42. The ends of the beams 17 each support a rotatable nut which engages a screwshaft 13 suspended from the top of a column 11 and which is secured to a chain sprocket 24 rotatable by an endless chain 23 driven by an electric motor 25.
Patent GB-1401968-A (GB)
Title: Basic azo dyes
IPC: C09B44/10
Filed: 1971-07-20
Abstract: 1401968 Basic monoazo dyes YORKSHIRE CHEMICALS Ltd 19 July 1972 [20 July 1971] 33862/71 Heading C4P New basic azo dyes of formula where R<SP>1</SP> is an aryl group linked directly or indirectly to a quaternary N atom or a 3-, 4-, 5-, 6- or 7-indazolyl, 6-benzothiazolyl, 3-isobenzthiazolyl or 4- or 6-benzimidazolyl group in which one of the ring N atoms is quaternized, R<SP>2</SP> is an aryl group, R<SP>3</SP> represents the atoms (which may include further hetero atoms) necessary to complete a heterocyclic ring; X is an anion which renders the compound soluble in water and m is the valency of the anion, the aryl and heterocyclic groups optionally being substituted but not by SO 3 H or CO 2 H groups are prepared by azo coupling using R 1 -NH 2  diazo components and give yellow, orange and red shades on polyacrylonitrile fibres. They may also be used to colour tanninmordanted cotton, cellulose acetate, acid-modified polyamide and polyester fibres.
Patent GB-877559-A (GB)
Title: Tool holding apparatus for rotary bits
IPC: E21B21/02
Filed: 1959-10-07
Abstract: 877,559. Lubricating drills &c. LORENTZ, R. Oct. 7, 1959 [Oct. 7, 1958], No. 34061/59. Class 83 (3). A shaft 1 is located between the driving-head 3 of a mining &c. drilling-machine and the bit 5, and has ducts 10, 10<SP>1</SP> to deliver flushing- liquid to the central bore 5<SP>1</SP> of the bit, from an annular passage 9 in a stationary sleeve 6 surrounding the shaft. The liquid is supplied at 8, and end-caps 7 on the sleeve secure packing members 12 within recesses 11. The shaft 1 screws at 2 within the driving head 3. Sockets.-The bit 5 engages a self-locking taper 4 in the shaft 1 and also screws therein at 13.
Patent GB-1325989-A (GB)
Title: Transistor amplifiers
IPC: H03F1/48
Filed: 1972-07-21
Abstract: 1325989 Transistor amplifying circuits LICENTIA PATENT - VERWALTUNGSGmbH 21 July 1972 [29 July 1971] 34163/72 Heading H3T  In an amplifying transistor, each electrode lead inculdes an inductance, 5, 6, 7 respectively, the inductances being of similar value and closely coupled one with another. One embodiment comprises a ferrite ring surrounding the three transistor leads (Fig. 4, not shown). The arrangement improves the high frequency response, in particular offsetting the effect of the capacitance 4 between collector and earth, which may be increased in the case of a power transistor by the connection of the collector to the casing. A resistor 8 may be used to clamp the resonance between the capacitor 4 and inductor 5.
Patent GB-813206-A (GB)
Title: Improvements in combine harvesters
IPC: A01F12/44
Filed: 1956-11-08
Abstract: 813,206. Combine-harvesters. RANSOMES SIMS & JEFFERIES Ltd., and JARVIS, J. S. Nov. 8, 1957 [Nov. 8, 1956], No. 34219/56. Class 6(3). A dressing apparatus in a combine-harvester comprises superimposed sieves 1, 3, a fan 9 delivering an air-stream through a duct 12 to the front undersides of the two sieves and two deflectors, the first, 11, at the exit of the duct, to divide the airstream between the two sieves and the second, 13, mounted between the sieves to direct most of the upper airstream towards the front of the upper sieve but to allow sufficient of the remainder of the airstream to flow to the rear of the sieve to prevent short straw from falling therethrough. The deflectors are pivotally adjustable, but the upper deflector 13 may, alternatively, be carried in slots 14 so as to be movable longitudinally of the sieves. The dressing apparatus is bodily reciprocated by an eccentric 5 and pitman 4, and the usual grain-pan 7 and auger 8 are provided for feeding the dressed grain to an outlet.
Patent GB-950770-A (GB)
Title: Improved cathodes for magnetically-confined glow discharge devices
IPC: H01J41/06
Filed: 1961-09-25
Abstract: 950,770. Ion-getter pumps. VARIAN ASSOCIATES. Sept. 25, 1961 [Dec. 23, 1960], No. 34267/61. Heading H1D] An ion-getter pump includes a cathode structure having a grid portion 31 with surface regions thereof disposed at glancing angles of incidence to the bombarding ion trajectories for enhancing erosion of the grid portion by increasing sputtering therefrom, the cathode structure being subjected in use to uneven erosion by magneticallyconfined ion bombardment such that a certain region 35 is subjected to more intense erosion than another region of the cathode structure, wherein the density of the cathode material in the region 35 of more intense erosion is greater than in the region of less intense erosion. The regions of denser cathode material are preferably disposed centrally with respect to the apertures in the cellular anode structure 17. These regions may take the form of plugs when the cathode grid structure 31 is composed of a series of concentric circles or of spiral form having their axes coincident with the axes of the apertures in the anode structure, or if the cathode grid is made up of slats they may take the form of bars of greater width than the slats. The cathode grid may be formed by compressing metallic powder in a mould. Specifications 883,138 and 949,097 are referred to.
Patent GB-1016311-A (GB)
Title: Improvements in and relating to inductor alternators
Inventor: PARTINGTON WALTER
IPC: H02K19/20
Filed: 1963-08-29
Abstract: 1,016,311. Inductor alternators. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 19, 1964 [Aug. 29, 1963], No. 34271/63. Heading H2A. An inductor alternator has a toothed rotor 2 co-operating with two, independently wound, annular stator cores 3, 4 both mounted on the same yoke but capable of annular displacement with respect to each other. In the construction described the two arms of the C-shaped yoke are proportioned to ensure approximately equal distribution of flux. The field energizing winding 13 is arranged in the recess of the yoke. Improved operating characteristics are obtained when a spatial displacement giving a 90 degrees electrical phase displacement is used or with 3-phase windings the spatial displacement is one-twelfth of the rotor tooth pitch.
Patent GB-747361-A (GB)
Title: Improvements in or relating to metal frames for glazings
IPC: E06B3/26
Filed: 1953-12-09
Abstract: 747,361. Windows. MICROLIT ANSTALT. Dec. 9, 1953 [March 11, 1953], No. 34313/53. Class 20(3). A hinged metal window sash which may cooperate with a wooden frame 16, Fig. 1, or a metal frame 1, Fig. 2, comprises a hollow member 19 or 23 having a stepped outer wall providing a double rabbet for co-operation with the fixed frame 16 or 1, an inner wall 20 opposite the stepped wall and two side walls, one of the latter projecting inwardly to support a window pane. At the vertical sides of the sash, a further hollow section member 4 integral with the sash has excisions to accommodate hinges mounted on the fixed outer frame. A dovetail groove contains packing 6 and a water drip 22 may be provided. The lower portion of the wooden frame 16 carries a water bar 17 and canal 18. In the case of double windows, the inner sash 21 which is of T-section is hinged at 24 to the hollow member 23.
Patent GB-195143-A (GB)
Title: Improvements in or relating to taps or cocks for baths, lavatories and the like
IPC: F16K27/12
Filed: 1921-12-21
Abstract: 195,143. Woodhouse, T. W., and Woodhouse, G. H. Dec. 21, 1921. Protecting covers; handles. - A bath or like tap is provided with a screwed barrel h passing through it, and with a protecting cap f adapted to move with the spindle and handle. The cap may be enamelled. Reference has been directed by the Comptroller to Specification 112,062.
Patent GB-912434-A (GB)
Title: Improvements relating to spark plug and gasket assemblies
Inventor: GREGORY DONALD FREDERICK
IPC: H01T13/08
Filed: 1960-10-07
Abstract: 912,434. Making sparking plug and gasket assemblies; jointing. GENERAL MOTORS Ltd. Sept. 26, 1961 [Oct. 7, 1960], No. 34458/60. Classes 83 (2) and 83 (4). [Also in Group XXVI] A method of making a sparking-plug and gasket assembly comprises placing on the threaded end of a plug an annular gasket having a number of inwardly extending nibs and reducing the gasket while on the plug so that the nibs engage in the thread. A circular gasket 1 of a " C " cross-section and having equispaced inwardly-projecting nibs formed on its inner periphery such that they clear the threaded portion of the plug is supported in a recess 5 of a split collet 6 by a guide sleeve 12. The screwed end of a spark plug is inserted through and rests on the gasket and a ram 14 is operated to pull the split collet 6 downwards relative to a fixed holder 11. The collet, due to the wedging action between its external tapered face and the internal tape of the holder 11 compresses the gasket radially inwards to reduce its diameter and cause the nibs 2 to engage in the thread. The gasket is preferably made from copperplated steel.
Patent GB-827167-A (GB)
Title: Improvements in and relating to the measurement of thickness in production of sheet and strip material
Inventor: STARLING COLIN WILLIAM
IPC: G01B21/08
Filed: 1954-11-29
Abstract: 827,167. Electric indicating apparatus. BRITISH IRON & STEEL RESEARCH ASSOCIATION. Dec. 2, 1955 [Nov. 29, 1954], No. 34524/54. Addition to 713,105. Class 40 (1). [Also in Group XXII] In apparatus as described in the parent Specification for measuring the thickness of sheet or strip emergent from a rolling or drawing mill, an alternating current signal is generated in accordance with the actual separation of the work rolls or dies (shown to be proportional to F S 0  + - (and additively compounded with an Mmf alternating current signal in accordance with the separating force F between the rolls to a resultant signal proportional to S 0  + F/Mm# + F/Mwr, where S 0  is the initial setting of the work rolls or dies, Mmf is a constant representing the elasticity of the mill frame, and Mwr a constant representing the elasticity of the work rolls. Fig. 1 shows work rolls 12, 13, rotatably mounted in chocks 14, 15 with a pair of cantilever resistance strain gauges 16, 17 mounted insulatedly on the upper chock, and distorted by sliding plungers 19, 21 carrying ball races 20, 22 contacting the necks of the respective work rolls 12, 13. A further cantilever resistance strain gauge 23 is insulatedly mounted on chock 25 of the back-up roll (not shown), and is distorted by a slidable plunger 26 carrying a ball race contacting the neck of the work roll 12. Strain gauges 16, 17, 23 are respectively connected in A.C. energized bridge networks 30, 31, 32 (Fig. 2); the sum of the outputs of bridges 30, 31 being proportional to the separation S of the work rolls, and the output of bridge 32 being proportional to the separation of the axes of the work and back-up rolls and thus to the separating force F. The output of bridge 32 energizes potentiometer 36 whose F setting represents -and is additively com- Mwr bined with the outputs of the other bridges in meter 37, whose reading is proportional to F F F S 0  + -- + -- = S + --and indicates Mmf Mwr Mwr the thickness of the emergent material. In a 2-high mill (not shown) the separating force is measured by a single strain gauge mounted in a block subjected to the mill load as described in parent Specification, and its signal is combined with the difference of the signals from strain gauges 16, 17 as described above. Strain gauges 16, 17, 23 may be provided at each end of the rolls and their signals averaged. The signal representing emergent thickness may be compared with a potentiometric signal representing required thickness to obtain an indication of thickness deviations.
Patent GB-486606-A (GB)
Title: Improvements in and relating to nozzles for use in the manufacture and production of artificial threads, filaments and the like
IPC: D01D4/06
Filed: 1936-12-17
Abstract: <PICT:0486606/IV/1> In the manufacture of artificial threads, and the like, by extrusion, the premature coagulation inside the spinning jet of the liquid being extruded and the consequent blocking of the jet is prevented by providing loosely inserted apparatus in the interior of the cylindrical jet for causing the liquid being extruded to sweep across the interior face of the jet prior to extrusion.  Such apparatus consists of a piece of metal or other resistant material, the crosssectional area of which is less than that of the interior of the jet by at least the total area of the holes, and which is spaced apart from the face of the jet by a distance which is small compared with the length of the jet.  In the Figure, the insert 4 is cylindrical with a central passage 5 through which liquid is forced. The annular projecting portion 7 spaces the insert from the jet face 3 in which are a number of holes 2.
Patent GB-938265-A (GB)
Title: Improvements in or relating to high temperature heating systems
Inventor: SAUNDERS JACK NORMAN
IPC: F24D3/02
Filed: 1960-10-11
Abstract: 938,265. Heating by circulation of liquids. PRESSURE SYSTEMS Ltd. Oct. 4, 1961 [Oct. 11, 1960], No. 34739/60. Class 64 (2). A heating system having a pressurized load circuit includes a primary circuit in which the heating liquid is heated, a secondary distribution circuit for the heated liquid, a mixer device M between the primary and secondary circuits through which the secondary circuit takes liquid from, and returns liquid to, the primary circuit, means T sensitive to the temperature of primary circuit liquid leaving the mixer device M and controlling, e.g. by a valve V, the secondary circuit flow rate so as to maintain the primary circuit liquid temperature at a predetermined level, and modulating control valve means MCV in the secondary circuit adapted to maintain substantially constant a predetermined secondary circuit temperature differential. As shown, the primary circuit contains boilers B1, B2 ... connected in parallel, each boiler having a circulation pump PB1, PB2 ... while the secondary circuit includes heat loads L1, L2 . . . connected in parallel and each having a circulation pump PL1, PL2 ... Each load circuit is provided with a valve V1, V2 ... at the outlet end, controlled by a thermostat (not shown), to maintain a predetermined exit temperature for the circuit. The valves V1, V2 ... are provided with by-pass valves or orifices which allow a minimum circulation when the main valves V1, V2 are fully closed. The primary and secondary circuits join in the mixer unit M, which may be a tubular arrangement, as shown, or a specially designed chamber.
Patent GB-1173218-A (GB)
Title: Water-Insoluble Monoazo Dyestuffs and a process for preparing them
IPC: C09B29/08
Filed: 1967-07-28
Abstract: 1,173,218. Substituted meta-amino-anilides FAREWERKE HOECHST A.G. 28 July, 1967 [30 July, 1966], No. 34820/67. Heading C2C. [Also in Division C4] Compounds of formula wherein R 1  is a C 1-4  alkyl or phenyl radical, R 2  is Me or a phenyl radical which may contain a Cl, OH or methylenedioxy substitutent and R 3  is Me, C 1-4  alkoxy or phenyl which may contain an OH substituent are prepared by reacting a 3-amino-anilide with (i) a keto compound R 2 -CO-CH 2 -CO-R 3  and hydrogenating the Schiff's base formed or (ii) an unsaturated keto compound R 2 -CH = CH-CO-R 3 . They are used as coupling components in the preparation of azo dyes (see Division C4). In Examples compounds wherein R 1 , R 2  and R 3  are respectively Me, Me, Me; Me, o-chlorophenyl, o-hydroxyphenyl; Et, Me, EtO; Ph, Me, EtO; Ph, Me, Me; Me, Me, EtO; Me, 3,4-methylenedioxyphenyl, o-hydroxyphenyl; Me, Ph, o-hydroxyphenyl and Me, o-hydroxyphenyl, Ph are described.
Patent GB-1152870-A (GB)
Title: Improvements in or relating to Screw Conveyors
IPC: F04D3/02
Filed: 1966-08-03
Abstract: 1,152,870. Screw conveyer. ALGEMENE KUNSTZIJDE UNIE N.V. 3 Aug., 1966 [4 Aug., 1965], No. 34838/66. Heading B8A. [Also in Division F1] A screw pump for conveying a highly viscous foaming liquid such as molten polyethylene terephthalate from a vacuum reactor 1 to an outlet 4 comprises a casing having an upper conical part 2 and a lower cylindrical part 3. The impeller has an initial section a extending into the reactor 1, a second section b fitting within the conical part 2 and third and fourth sections c, d fitting within the cylindrical part 3. In terms of the constant outer diameter D over sections c, d, the outer diameter of the screw 6 may increase from about 0À4D to between 2D and 3D over section a and decrease to D over section b. The diameter of the root 5 may increase over section c from the constant value 0À2D obtaining over sections a, b to the constant value 0À9D obtaining over section d. The length of section a may be between 0À5D and D, and the length of each of sections b, c may be between 2D and 3D. The screw has a constant pitch of between 0À8D and 1À2D. Instead, the outer diameter may increase over section a from 24 mm. to 60 mm. and decrease over section b to 30 mm; the two root diameters may be 12 mm. and 24 mm.; sections a, b, c and d may respectively be 20, 50, 45 and 115 mm. long; and the pitch may be 30 mm.