baber/WOPTO huggingface dataset:
Patent GB-486528-A (GB)
Title: Improvements in or relating to electric circuits for generating currents of saw-tooth wave form
IPC: H03K4/34
Filed: 1936-12-03
Abstract: 486,528. Valve generating circuits. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Dec. 3, 1936, No. 33199. Convention date, Dec. 3, 1935. [Class 40 (v)] Relates to sawtooth current generators of the kind described in Specifications 400,976 and 476,336 in which the long flank of the saw-tooth current is produced by applying a steady potential 14 to a coil 12 in the anode circuit of a valve 10, the short flank being produced by a free half-oscillation of the coil 12 and its associated capacity 13 when the valve is rendered non- conducting by a synchronizing-pulse. Selfoscillation is limited to one half-cycle by the provision of a rectifier 15 in series with a source 16 across the coil 12. A back coupling 12, 17 is provided from the anode coil to the grid circuit to accelerate the closure of the valve. According to the invention a screen is provided in the valve 10 and its voltage is adjustable from the battery 14, so that as the anode current approaches its maximum, which is determined by the screen voltage, the slowing down of the anode current rise will through the back coupling cause the grid to become negative and will close the valve rapidly. The positive voltage applied to the grid by the coil 17 during the rise of anode current is compensated by a battery 18 in the grid circuit; or a condenser 20 may be substituted for the battery, and a leak resistance 19 provided. By adjustment of the screengrid voltage, the period of the saw-tooth current may be kept substantially constant, even in the absence of synchronizing-pulses.
Patent GB-1083493-A (GB)
Title: Production of steel castings
Inventor: BODDEY RONALD FREDERICK
IPC: B22C3/00
Filed: 1964-08-14
Abstract: For use in a steel-casting mould (see Division B3) an aluminothermic lining has on its metal-contacting surface a coating containing titanium metal or compound.  Oxidizing agents, refractory fillers, simple or complex fluorides (to facilitate burning) and binders are specified for the lining composition and Specification 627,678 is referred to.  TiO2, ilmenite or a titano-fluoride or a halide, carbide or sulphate of titanium is applied to a lining of the aluminothermic composition as a paint or slurry to be dried out and contains a binder and refractory in water or isopropyl alcohol.
Patent GB-1055216-A (GB)
Title: Improvements in package binding machines
Inventor: CHEESMAN JOHN JAMES
IPC: B65B59/04
Filed: 1965-08-04
Abstract: 1,055,216. Binding packages. PACKAGE SEALING CO. (EXPORT) Ltd. Aug. 4, 1965, No. 33269/65. Heading B8C. Twin binding sections of a machine for putting two parallel ties about a package, open about a hinge 20 (Fig. 2, not shown) at at least one edge to permit access to the mechanisms. Preferably hinges 20 are provided at opposite ends so that the binding sections may be separated from either end after removing the corresponding hinge pins. Alternative hinges 20 may be fitted to alter the spacing between the ties. The binding mechanisms may be of the form described in Specifications 1,013,684, 1,013,685 and 1,017,905 and components of the mechanism may be mounted for removal separately or as a unit on a plate 16 (Fig. 5, not shown) defining the binding aperture. Each of plates 16 may be suspended by its upper edge from the corresponding frame 11, and may rest at its lower end on a resilient support 19.
Patent GB-393197-A (GB)
Title: An improved vice for holding piston rings and the like
IPC: B25B27/12
Filed: 1932-11-25
Abstract: 393,197. Vices. HUGHES, A. E., 134, Shirehampton Road, Sea Mills Park, Bristol. Nov. 25, 1932, No. 33315. [Class 61 (ii).] Piston rings are held for filing &c. by plates A, B one of which is provided with a lug which may be clamped in a vice, the lug being disposed at an angle to its plate. The plates are provided with gaps to give access to the surfaces of the piston ring ends and are secured by a square-shanked bolt C and nut D.
Patent GB-1310649-A (GB)
Title: Abrasive sheet material
IPC: B24D7/02
Filed: 1971-07-15
Abstract: 1310649 Abrasive products A RUGGEBERG H RUGGEBERG I RUGGEBERG and T RUGGEBERG [trading as AUGUST RUGGEBERG] 15 July 1971 [11 May 1971] 33315/71 Addition to 1263889 Heading C4V An abrasive sheet material consists of a glass fibre support impregnated with synthetic resin carrying on both surfaces abrasive grains fixed by synthetic resin, either or both of said resins containing short fibres of fibrous mineral materials. The fibres may be of asbestos, ceramic, or carbon, and may be individual fibres or bundles of fibres of diameter <SP>3</SP>/ 1000 - <SP>12</SP>/ 1000  mm. and of length up to 3 mm. The glass fibres and the fibres of the base material may be treated with a silane.
Patent GB-1112832-A (GB)
Title: Strand guide system for continuous casting plants
IPC: B22D11/128
Filed: 1965-08-04
Abstract: 1,112,832. Continuous casting. CONCAST A.G. 4 Aug., 1965 [4 Aug., 1964], No. 33429/66. Heading B3F. In a strand-guide or -withdrawing train, guide elements such as sliding elements or rolls are arranged in pairs, the spacing in the pairs being constant although the pairs are movable to a limited degree in a direction perpendicular to the strand surface. The rolls 19, 20 may be strung between link chains 21, 22, the axles of each roll pair being interconnected by further, transverse links 23 to maintain the spacing constant. The link chains 21, 22 are suspended in a frame between non-displaceable rolls 11-18 (which may be driven, to act as withdrawing rolls). Only the first, and possibly the last, rolls need be non-displaceable. In a modification, Figs. 5, 6 (not shown), there are no link chains and the transverse links (33) pass through fixed supporting lugs (34) which embrace their middle portions and form an abutment for springs (35, 36) also encircling the links and permitting the limited movement of the rolls (30, 31). For adjustment to different strand thicknesses, the transverse links (33) are in two parts screwed together.
Patent GB-468624-A (GB)
Title: Improvements in or relating to electrostatic sound receivers and reproducers
IPC: H04R9/04
Filed: 1935-12-03
Abstract: 468,624. Microphones. MASSOLLE GES., J., and MASSOLLE, J. Dec. 3, 1935, No. 33528. Convention date, Dec. 3, 1934. [Class 40 (iv)] in an electrostatic sound-translating device having a diaphragm adapted to vibrate as a whole or in partial areas, a closed air chamber dimensioned so as to resonate at a frequency below the natural frequency of the diaphragm or the partial areas thereof is arranged behind the diaphragm and functions to increase the response at the lower frequencies only. As shown in Fig. 1, the diaphragm 1 is supported above the fixed electrode 2, which is perforated with a number of apertures 3 leading to an enclosed air space 4. The diaphragm may be free to vibrate as a whole, or may be supported at points 5 so as to provide a number of equal or unequal vibrating areas. If desired the points of support 8 may be pressed out of the diaphragm 6 itself, Fig. 5, or formed integrally with the electrode, or the diaphragm may be disposed between a pair of fixed electrodes provided with supporting points.
Patent GB-366491-A (GB)
Title: Improvements in or relating to pony or bogie trucks particularly for use in conveying, loading or like machines
IPC: E21F13/02
Filed: 1930-09-30
Abstract: 366,491. Undercarriages for railway &c. vehicles. BRITISH JEFFREYDIAMOND, Ltd., Stennard Works, Wakefield, Yorkshire.-(Jeffrey Manufacturing Co. ; Columbus, Ohio, U.S.A.) Sept. 30, 1930, No. 33576/31. Divided on 364,118, [Group XXX]. [Class 103 (vi).] A pony truck or bogie D more particularly for use in machines for conveying coal from the working face of a mine, such as are described in Specifications 361,020, 362,492, and 364,118, [all in Group XXX], has supporting means, such as a stud 148, on which a member, such as a gathering conveyer C, can pivot or rock ; and has a horizontal ring-shaped member 149, which may be concentric with the stud 148, for limiting the movement of the conveyer &c. The stud 148 may engage an inverted cup-like member on the conveyer C.
Patent GB-629863-A (GB)
Title: Improvements in propelling mechanism for invalid carriages and the like
IPC: B62M1/14
Filed: 1947-12-19
Abstract: 629,863. Converting oscillating into rotary motion. NORTHERN PATENT DEVELOPMENTS, Ltd., and BARTLETT, B. G. W. Dec. 19, 1947, No. 33685. [Class 80 (i)] [Also in Group XXXI] In a manual propelling mechanism for invalid carriages and the like of the type in which two separate driving devices are adapted to be operated by each hand of the occupant of the carriage, each driving device has an annular internally toothed gear C in mesh with a plurality of idler pinions D mounted on a secondary lever F, the idler pinions meshing with an inner fixed pinion K secured to a stationary shaft L. As shown, the gear C is incorporated in each of a pair of hand levers B, B. The secondary levers F. F are each connected by a connecting rod G to a double throw crankshaft H by means of which the drive is communicated direct to the road wheels of the carriage or through chain and sprocket mechanism J. The annular internally toothed gear C is shrouded and in mesh with three idler pinions D which are mounted adjacent the apices of a triangular plate member E integral with the secondary lever F.
Patent GB-905451-A (GB)
Title: Improvements in supporting arrangements
IPC: D06F39/12
Filed: 1960-09-30
Abstract: 905,451. Machinery beds. LEPPER, W. Sept. 30, 1960 [Oct. 2, 1959], No. 33712/60. Class 80 (4). [Also in Group XXXII] Means for supporting a machine subjected to vibration includes at least one channel-shaped member 39 attached to the bottom of the machine, a complementary channel-shaped member 38 on a foundation, and rolling members 43 which each bear on two positions on each channel-shaped member in recesses 42 formed in the members. Small channel members may be fitted at each comer of the machine or the flanges may be formed directly as parts of a cast iron or other plate.
Patent GB-1506484-A (GB)
Title: Heatexchanger
IPC: C21B9/08
Filed: 1975-08-13
Abstract: 1506484 Tubular heat exchangers SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 13 Aug 1975 [27 Aug 1974] 33762/75 Heading F4S A heat exchanger for preheating the combustion air of an oil-fired furnace comprises an outer casing 1 containing elongated heat exchange tubes 3, 4 mounted between end plates 10, 11 through which a hot fluid passes from an inlet 5 to an outlet 6, and the medium to be heated is passed successively in counter, co- and counter current over the tubes from an inlet 9 to an outlet 12 in regions I, II, III by partitions 7, 8. The partition 7 extends coaxially of the tubes but is spaced at either end from the plates 10, 11 and substantially separates the tubes 3 from tubes 4 whilst being connected to the casing by the partition 8 formed by a transverse wall through which the tubes 4 extend. In a modification the partition and transverse wall are annular, the annular partition being water cooled and flow directing vanes may be provided on the partition or casing which vanes extend longitudinally of the exchanger.
Patent GB-1010873-A (GB)
Title: Apparatus for applying glue to box blanks
IPC: B31B50/62
Filed: 1963-08-27
Abstract: 1,010,873. Coating-apparatus. UNIVERSAL CORRUGATED BOX MACHINERY CORPORATION. Aug. 27, 1963 [Jan. 8, 1963], No. 33915/63. Heading B2B. Glue applying equipment comprises a glue transfer roller having a plurality of grooves therein extending transversely across the periphery thereof parallel to its axis, a presser roller associated therewith and positioned above the latter, means rotatably mounting said rollers for rotation thereof in opposite directions about parallel axes, means to drive said transfer roller, a glue pot positioned laterally of said transfer roller and having a mouth with a pair of spaced parallel side walls adapted to straddle the side edges of a relatively small portion of the periphery of the transfer roller with relatively little clearance therebetween to clean the ends of said transfer roller, means to meter the quantity of glue carried by said transfer roller from said glue pot upon rotation of said transfer roller, and means in said glue pot to clean the periphery of said transfer roller as the latter rotates, said cleaning means comprising a scraper blade inclined towards the trailing portion of the periphery of said transfer roller and having an edge extending parallel to the axis of the transfer roller and means resiliently retaining said edge against the periphery of the transfer roller, whereby when said roller is rotated and the edge of said blade is moved into and out of said grooves the blade will vibrate to enhance the cleaning of the roller. As shown (Fig. 1) a blank to be glued is fed in the direction of the arrow into the nip between the glue applying roller 12 and an adjustable, eccentrically mounted presser roller mounted on the shaft 32. Glue is fed from a reservoir 113 to a tank 61 which straddles a portion of the periphery of the glue applying roller 12. The tank is pivotable about the stud 62 and its position may be adjusted by means of the screw 65. A shaft 97 extends through the tank 61 and to this is attached the scraper blade 102 (see Fig. 4) which is urged into the grooves 13 in the circumference of the glue applying roller by means of a leaf spring 105, the tension of which is adjustable. A blade 93 is attached to the bottom of the glue tank 61 so as to control the amount of glue which is applied to the periphery of the roller according to the position of the tank.
Patent GB-305764-A (GB)
Title: Improvements in operating gas producers
IPC: C10J3/00
Filed: 1927-12-16
Abstract: 305,764. Carpenter, C., and South Metropolitan Gas Co. Dec. 16, 1927. Producers.-In the operation of gas producers or the like the waste of fuel during clinkering is minimized by reducing the temperature of the fuel-bed by means of a current of gas which is either inert or acts endothermically with the fuel. This gas may be substituted for the air blast or supplied to the space above the fuel. In the producer shown, when the clinkering doors are opened the gas or vapour is introduced through pipes E, E<1> leading to below the grates B. The draught may, however, be diminished by admitting cold and preferably inert gas or vapour through an inlet to the space F above the fuelbed.
Patent GB-338356-A (GB)
Title: Paddle wheels in particular for paddle steamboats
IPC: B63H1/04
Filed: 1929-11-09
Abstract: 338,356. Aller, G. van. Nov. 9, 1929. Paddle wheels.-A paddle wheel is constructed with pivotally mounted blades and is driven by mechanism which imparts a velocity to the blades exceeding that of the wheel over that part o:f the motion when the blades are performing their active work. For this purpose the paddles are pivotally or rigidly mounted on arms 25 which are in turn pivotally connected at 24 to the periphery of the driving wheel 11. Telescopic extension arms 26 are guided at their inner ends 27 on the periphery of a ring 28 eccentrically mounted with respect to the main shaft 10. The ring and shaft are rotated with the same angular velocity in the same direction. The ring 28 is supported by external rollers 29. Alternatively the arms 25 may be in one piece with their inner ends in guide slots in the disc 28, or the inner ends may be guided on the periphery of the wheel 11 by rotatable slotted guides.
Patent GB-1009163-A (GB)
Title: Improvements in or relating to apparatus for measuring or responsive to radio frequency power
Inventor: BONES ROGER ALEC
IPC: G01R27/06
Filed: 1963-08-29
Abstract: 1,009,163. Power measurement. WAYNE KERR LABORATORIES Ltd. July 31, 1964 [Aug. 29, 1963], No. 34283/63. Heading G1U. Apparatus measuring or indicating RF power flux comprises a resistive film deposited on an insulating e.g. glass bulb having a protruding capillary containing a bead of coloured liquid e.g. xylene and connected to atmosphere or to a similar uncoated bulb. The resistive film may be of stannic oxide doped with antimony trioxide, and the bulbs may be coated with opaque non-conductive layer e.g. black paint and/ or enclosed in foamed polystyrene. Dissipation of RF power in the film heats air or gas in the coated bulb and displaces the liquid bead accordingly. Capacitative detector electrodes adjacent the capillary may operate an indicating circuit.
Patent GB-894695-A (GB)
Title: Improvements of and relating to drying kilns for granulated substances
IPC: F26B17/14
Filed: 1960-10-06
Abstract: 894,695. Drying apparatus. LOESCHE, E. G. Oct. 6, 1960 [Oct. 21, 1959], No. 34332/60. Class 34(2) In a granule drying apparatus the granules pass downwardly through the upper part of an upright shaft, then form a free slope on an upwardly tapering cone in the shaft, and pass downwardly into a lower part of the shaft where they are cooled by air which is introduced into the lower part of the shaft, drawn by an exhaustor through a duct placed in the central part of the shaft while hot gas from a burner is passed into the mass of granules through the free slope and then ascends through the upper part of the shaft while drying the granules. The kiln comprises a pre-drying shaft 13 having at its lower end a displaceable telescopic ring 18 which alters the angle of slope of the granulate in the upper part of the annular drying zone 2 to maintain unobstructed outlets 8 in an annular channel 7 through which hot gases from a heating device 6 tangentially enter the drying zone. A cone-shaped part 10 is mounted on an axiallyextending exhaust pipe 9 in the drying zone to upwardly deflect the hot gases from the outlets 8 and to provide a shoot for the downwardly moving granulate, and the pipe 9 has a lower tube section 11 which terminates in a funnel-shaped opening 12 above a cooling air inlet 15 in the base of the kiln to collect the air to cool the material in the lower part of the kiln, the pipe 9, and the part 10 before recirculation to the heating device 6. A discharge device (not shown) beneath the kiln comprises a vibrating screen shoot to grade the granulate, which shoot is cooled and the dust removed by the cooling air before entering the inlet 15.
Patent GB-1438557-A (GB)
Title: Palladium compositions suitable as oxidation catalysts
IPC: B01D53/86
Filed: 1973-07-19
Abstract: 1438557 Treating exhaust gases LAROX RESEARCH CORP 19 July 1973 34339/73 Heading C1A [Also in Division B1] Carbon monoxide and sulphur dioxide, e.g. in exhaust gases from I.C. engines or oil and coalburning boilers, are oxidized to carbon dioxide and sulphur trioxide, respectively, by contact with a catalyst which comprises either (i) an aqueous homogeneous solution comprising (a) a water-soluble Pd (II) salt, e.g. the chloride or lithium palladium chloride, having a palladium ion concentration of 0À00005 to 0À025 mole/litre, (b) a Cu (II) chloride or bromide, (c) a Cu (II) salt of an oxyanion derived from a strong acid, wherein the total concentration of (b) and (c) is 0À003 to 3 moles/litre and (b) forms 15 to 60 mole per cent of the total of (b) and (c) and, optionally, (d) a chloride or bromide of a Group Ia or Group IIa metal, e.g. lithium chloride; or (ii) a composition obtained by impregnating a support with such an aqueous solution and drying to deposit 0À0003 to 0À03 moles / kg. support of the Pd (II) salt. The oxidations are carried out at 0‹ to 100‹ C. using the aqueous catalysts or at 0‹ to 300‹ C. using the supported catalysts. The reaction pressure may be sub- or superatmospheric but is suitably about atmospheric, whilst the contact time may be 0À1 to 5 seconds. The feed should contain a stoichiometric excess of oxygen.
Patent GB-1254747-A (GB)
Title: Improvements in vibratory feeders
Inventor: TARZIAN GEORGE MARTIN
IPC: B65G47/14
Filed: 1969-07-08
Abstract: 1,254,747. Spiral vibrating feeders. G. M TARZIAN. 8 July, 1969 [9 July, 1968], No. 34351/69. Heading B8A. A vibratory work parts feeder comprises a spiral track 34 formed in an annular feeder rim 16 supported by a ring 26 with lugs 28 mounted on springs 24, disclosed in Specification 1,254,611, attached to a base 12 on rubber feet 20. A reservoir 14 is mounted in the base 12 and has a false bottom 42 slidingly mounted on a post 40 and loaded upwards by a spring 44. When work parts are put into the reservoir 14, the bottom is depressed, e.g. to 42<SP>1</SP>. As the parts are fed from the rim 16 by vibration the bottom 42 rises to feed more parts into the rim 16 from a predetermined level.
Patent GB-1177430-A (GB)
Title: Preparation of aromatic polycarboxylic acids.
Inventor: LEWIS DONALD MACDONALD
IPC: C07C51/265
Filed: 1968-07-18
Abstract: 1,177,430. Polycarboxylic aromatic acids. E.I. DU PONT DE NEMOURS & CO. 18 July, 1968, No. 34384/68. Heading C2C. Polycarboxylic acids are prepared by oxidizing a polyalkyl-substituted aromatic compound with molecular oxygen in the liquid phase at elevated temperature and pressure and in the presence of an oxidation catalyst containing bromine and metal, the oxidation being carried out: (a) at a lower elevated temperature in the presence of little or no added water to convert a major proportion of the starting aromatic compound to an oxidation product comprising only a minor proportion of the desired polycarboxylic acid, and then (b) at a higher temperature, in the presence of sufficient water to maintain the solids content below 70% by weight to convert the oxidation product to the desired polycarboxylic acid. The second stage of the oxidation is carried out at a temperature, preferably at least 25‹ C. above that of the first. The process may be used for the conversion of p-ethyl toluene and/or p-diisopropyl benzene to terephthalic acid; o-xylene or o-isobutyl toluene to o-phthalic acid; m-xylene to isophthalic acid; ditolylethanes to phthalic acids; mesitylene to trimesic acid; pseudocumene to trimellitic acid durene to pyromellitic acid; dimethylnaphthalenes to dicarboxynaphthalenes and dimethylbiphenyls to biphenyldicarboxylic acids.