baber/WOPTO huggingface dataset:
Patent GB-1376265-A (GB)
Title: Worm presses
IPC: B30B9/12
Filed: 1972-12-19
Abstract: 1376265 Screw press for filtering slurryKRIMA MASKINFABRIK AB 19 Dec 1972 [22 Dec 1971] 58609/72 Heading B1D In a press for filtering fibrous slurry wherein screw 7, 8, 9 is rotated within a cylindrical strainer 6, the solids discharge opening 14 is defined between diverging extension 16 of the strainer and frusto-conical sleeve 15, which is rotatable relative to the screw but moves axially with the screw to adjust the width of the opening when the screw is moved - by hydraulic ram 24..28. The core of the screw diverges over two thirds of its length towards opening 14. The ram comprises annular flange 24 on housing 21, which encloses bearings 22, 23 supporting one end of the screw shaft 4, flange 24 acting as a piston movable in fixed cylinder 2 by supply of fluid to passages 27, 28. The opening 14 may thereby be adjusted during pressing to compensate for varying proportions of solids in the feed to produce a uniform solids product. Alternatively the screw is continuously reciprocated during pressing with an axial stroke of 5mm.
Patent GB-1374108-A (GB)
Title: Building framework structure
IPC: E04B1/24
Filed: 1971-12-17
Abstract: 1374108 Structural joints HITACHI ZOSEN KK 17 Dec 1971 [10 Sept 1971 18 Nov 1971 1 Dec 1971] 58746/71 Heading F2M [Also in Division E1] H-section elongate steel column members 1 are interconnected by an H-section connecting member 7 having its web engaged in opposed longitudinal slots 4 in the webs 2 and its flanges 8 in slots 3 in the flanges 3, the members being welded together at 9 and 74. The H-section elongate members preferably form the vertical side members of prefabricated room units and horizontal beams of the room units may be welded to the sides or ends of the flanges of the connecting member. Two sets of room units may be set up side by side and further connecting beams attached to the connecting units to increase the building frontage without increasing the size of room unit to be transported Many modifications are disclosed including connecting members 7 having flanges with enlarged ends, and H-section elongate members in which the slots in the flanges are merely edge rebates. In forming the room unit metal flooring members may be welded to the beams before they and the connecting members are secured to the ports. A modified connecting member may be formed by welding two H-section members together in parallel, the column members then having two slots in each end of their webs.
Patent GB-1240556-A (GB)
Title: Method and apparatus for producing high intensity radiation
Inventor: WARNEKE CARL JUNKER
IPC: H05B41/34
Filed: 1968-12-11
Abstract: 1,240,556. Transformers and inductors; metal-vapour lamps. C. J. WARNEKE. 11 Dec., 1968 [18 Dec., 1967], No. 58899/68. Headings H1D and H1T. [Also in Divisions G3 and H2] A control system for a gas discharge lamp or lamps 13 comprises a saturable reactor 27, a high reluctance step-up transformer 19<SP>1</SP> and a saturable peaking transformer 17<SP>1</SP> which latter may be an autotransformer. The high reluctance transformer 191 has a laminated core 41<SP>1</SP>, 42<SP>1</SP> and is provided with a paramagnetic shunt 43<SP>1</SP> between the primary and secondary windings 23<SP>1</SP>, 21<SP>1</SP> which latter winding may comprise a plurality of serially connected sections S1-S4. Between the ends of the magnetic shunt 43<SP>1</SP> and the core sections 421 are wedging shims 441 of non-magnetic material or alternatively the ends of the shunt 43<SP>1</SP> may enter the sections 42<SP>1</SP> and be secured therein by wedge shaped members. The transformer may also be provided with an auxiliary shunt member, 46<SP>1</SP> of paramagnetic material and the portion 50<SP>1</SP> thereof is adjustable relatively to the portions 48<SP>1</SP> by means of a member 54<SP>1</SP>. The transformer 17<SP>1</SP> may have a core 49 comprising either a wound laminar type of construction or a ceramic ferrite construction. The cone is provided with an air gap 79 in order to resist the production of a sharply peaked output waveform by the transformer. In the wound laminar type of core, the normal core clamps 73, 81 are provided. A lamp 13 used in a photo-chemical process comprises a high purity quartz or sapphire envelope filled with an inert gas together with a metal salt. The gases may be either helium, xenon, krypton, argon or a mixture of these and the salts may be of the metals, indium, mercury, mercury sulphide, a mercury amalgam, mercury bromide, mercury iodide, mercury cadmium or zinc. The gas pressure in the envelope is normally arranged to be less than one atmosphere. Cooling of the lamps is arranged by placing multiple leaf, silver foil vane type mercury condensers at each end of the envelope and a fan or blower may be provided. Examples given of the arc lengths of the lamps are 4À5 and 48 inches.
Patent GB-1274155-A (GB)
Title: Electronic system for use in calculators
IPC: G06F7/00
Filed: 1970-12-11
Abstract: 1,274,155. Digital calculator. OMRON TATEISI ELECTRONICS CO. 11 Dec., 1970 [15 Dec., 1969], No. 59054/70. Heading G4A. Digital calculator using binary coded decimal digits obtains the nines complements of digits for use in subtraction by using an inverter fed by an adder receiving a digit to be complemented and pulses representing the digits + 5 and + 1. The calculator has shift registers 1, 2, 3 each holding the same number of digits, i.e. 12 digits each of 4 bits. Registers 1 and 2 are coupled in series by gates and register 2 feeds an adder 5 via gates. Register 3 feeds the adder and can receive data from the adder directly or via an inverter 31 and from register 2. Each register can circulate data and register 1 can receive data from a keyboard. A four bit register 4 can be used to shift data to the left or most significant position and a four bit stage 26 of register 2 can be used to shift data to the right. To obtain a nines complement data from register 3 is fed to the adder and pulses representing binary 5 are fed to the adder. For all but the least significant digit a pulse representing binary 1 is also fed to the adder. The sum is fed to inverter 31. Multiplication and division can be performed by successive addition or subtraction.
Patent GB-1457440-A (GB)
Title: Packing elements
IPC: B01J19/30
Filed: 1973-12-21
Abstract: 1457440 Fluid/fluid contact apparatus KNITMESH Ltd S R M ELLIS and N F ASCTTON 25 Nov 1974 [21 Dec 1973] 59394/ 73 Heading B1R A fluid/fluid contact apparatus e.g. a distillation or absorption tower comprises a column 10 containing a number of redistributor elements 12, 13 and 14 each comprising an annularly shaped skeletal body e.g. of filamentary material defining labyrinthine fluid passageways and hawing one or more through apertures whose axes are parallel with the column axis e.g. the coaxial central aperture or a further annular aperture 28 (Fig. 5 not shown) or a plurality of apertures 20 of square cross section (Fig. 4 not shown) through which fluids can pass with relatively unhindered flow in respect to the flow through the skeletal structure. The elements are preferably constructed by winding round a wire mesh mandrel 15 a knitted material 16 whose mesh is denser at the lower end (when the column is vertical). An annular sheet of foraminous material 17 which may be planar or conical may also be provided on the element 14.
Patent GB-1452780-A (GB)
Title: Electrolytic process for forming low-abrasion surface layers on metal objects
IPC: B24B37/12
Filed: 1973-12-28
Abstract: 1452780 Forming low-abrasion surfaces electrolytically SUZUKI MOTOR CO Ltd 28 Dec 1973 [30 Dec 1972] 60081/73 Heading C7B  Low-abrasion surfaces are formed, e.g. on Al alloy engine components, by electro-plating a metal layer containing non-conducting particles on to the surface, followed by removing from 0À1-15 microns of the plated metal electro-chemically, chemically or mechanically whereby the particles are partly exposed and protrude from the surface. The metal plated may be Ni, Cu, Zn, Sn or Cr and contains dispersed particles of a hard material, e.g. SiC, WC, Al 2 O 3 , ZrC, TiC or BC together with a solid lubricant, e.g. MoS 2 , carbon fluoride, a polymer thereof or SBR resin. The particles may have a size of 0À01-20 Á. Electropolishing baths specified for the removal step comprise; aqueous H 3 Po 4  with one of CrO 3 , n-butanol or glycerin; HNO 3  with H 3 PO 4  and/or H 2 SO 4 ; aqueous CrO 3 , NaNO 3 , NaHSO 4 ; aqueous H 3 PO 4 /H 2 SO 4  with one of aniline, HCl, CrO 3  or HClO 4 , aqueous HClO 4 , ethanol, glycol monobutyl ether. Plating conditions may include a c.d. of 2-70 A/dm<SP>2</SP> giving a coating of 100-500 Á A lead or stainless steel cathode may be used for electropolishing.
Patent GB-1360029-A (GB)
Title: Closed cycle gas turbine plant control system
IPC: F02C1/10
Filed: 1971-12-23
Abstract: 1360029 Closed cycle gas turbine plant UNITED KINGDOM ATOMIC ENERGY AUTHORITY 21 Dec 1972 [23 Dec 1971] 60144/71 Heading F1G The invention relates to a closed cycle gas turbine plant in which the heat source may be a gas-cooled nuclear reactor and to a control means in which two by-pass ducts are provided in the high pressure gas flow path, each by-pass duct being arranged to by-pass a controlled fraction of the total gas flow around one or more components in the flow path. The plant shown in Fig. 1 comprises LP compressor 21, interstage gas cooler 29, HP compressor 22, recuperator 26, heat source 23, HP turbine 24 which drives the compressors 21, 22, and LP turbine 25 which drives an alternator 28; the plant comprises also a pre-cooler 27. The heat source is a gas-cooled nuclear reactor, the gas being helium. A valvecontrolled by-pass duct 31 is provided across the high pressure side of the recuperator. A further valve-controlled by-pass duct 32 is provided across the nuclear reactor. Thus the temperature of the gas at the inlet to the nuclear reactor and at the outlet of the reactor and so at the inlet of the HP turbine may be controlled. In a second embodiment a single turbine is provided driving three compressors in series flow, also an alternator. A valve-controlled by-pass duct 31 is provided across the high pressure side of the recuperator as in the first embodiment. The second valve-controlled by-pass duct however by-passes both the high pressure side of the recuperator and the nuclear reactor so that a controlled portion of gas can pass from the compressor outlet to mix with the heated gas at the turbine inlet.
Patent GB-1217550-A (GB)
Title: Extensible load lifting spreader
IPC: B66C1/10
Filed: 1968-12-18
Abstract: 1,217,550. Lifting spreaders. FRUEHAUF CORP. 18 Dec., 1968 [26 Feb., 1968], No. 60165/68. Heading B8H. An extensible lifting spreader comprises generally U-shaped end portions 45, the legs of which are telescopically received in parallel lateral box section members 47 of a centre portion 39, and are reciprocable therein by hydraulic rams 61. The centre portion 39 is mounted for horizontal rotation, on a platform 21, relative rotation being permitted by a roller bearing 25, 29, 31, one race 29 of which is formed with an internal gear 33 for driving engagement with a gear-wheel 35 driven by a rotor 37. Hydraulically operated twist locks 55, 57 for engagement with a container to be lifted are provided at the four corners of the spreader. The platform 21 is suspended from a crane gantry by wire ropes passing around sheaves 23 on the platform.
Patent GB-1199100-A (GB)
Title: Apparatus for Stirring a Liquid Film Covering a Surface
IPC: B01D1/22
Filed: 1968-12-20
Abstract: 1,199,100. Heat exchangers. BATTELLE MEMORIAL INSTITUTE. 20 Dec., 1968 [22 Dec., 1967], No. 60852/68. Heading F4S. [Also in Divisions B1-B2] In an apparatus, such as a heat-exchanger for sterilizing or pasteurizing liquids, wherein a film I of liquid flows down a surface which is heated by circulating heating medium through jacket 2, the film is continuously stirred by moving, hollow pad-like members 6 filled with fluid 9, the part 6b of each pad consists of an elastic membrane and the arrangement is such that the pads project into the film but do not contact the surface. The pads are supported by hollow arms 7 on hollow rotating shaft 8, all of which contain the fluid 9. The pressure of the fluid may be adjusted, e.g. by a pump. The pads may be provided with holes whereby the fluid, e.g. compressed air, is injected into the liquid of the film. The apparatus may be used as an evaporator, a chemical reactor, or a mixer (see Divisions B1-B2).
Patent GB-1281470-A (GB)
Title: Improvements in seismic impulse transmitting apparatus
IPC: G01V1/387
Filed: 1970-12-23
Abstract: 1281470 Seismic energy generators BOLT ASSOCIATES Inc 23 Dec 1970 [29 Dec 1969] 61249/70 Heading H4D A seismic energy generator for use on hard, soft or marshy ground or on water-covered areas comprises a liquid-containing tank 12 including one or more devices 18 for abruptly releasing pressurized gas (e.g. air) into the liquid, the tank having as its base a displaceable diaphragm structure comprising a diaphragm and cylindrical member 38. This structure allows the tank to move upwards as the seismic energy is transmitted downwards. The diaphragm is of metal. A seal which allows relative movement between tank 12 and member 38 is provided by annular, sliding, plastics (e.g. polyurethane) seal 42 or (Fig. 4, not shown) by a second, polyurethane diaphragm clamped at 47 to the rim of the wall of tank 12 so that the second diaphragm overlies the one shown. A stop-ring 56 and shock-absorbing polyurethane ring 58 limit the relative movement of tank 12 and member 38 so that the upward movement of tank 12 lifts the metal diaphragm after initial downward motion of the diaphragm. A support for the generator " catches " the generator and retards its subsequent fall. Rubber boot 62 excludes dirt from the generator. Released gas is vented from the generator via a gas-liquid separator.
Patent GB-1292610-A (GB)
Title: Explosive compositions
IPC: C06B25/34
Filed: 1969-12-23
Abstract: 1292610 Explosive compositions EXPLOSIVES CORP OF AMERICA 23 Dec 1969 62566/69 Heading C1D An explosive composition comprises hydrazinium nitrate (with or without ammonium nitrate), hydrazine (with or without ammonia), and particulate aluminium. Hydrazine may be mixed with hydrazinium nitrate or with ammonium nitrate and then the aluminium added; ammonia is removed by mixing under vacuum at elevated temperature. Also included may be minor amounts of alkali metal nitrates, calcium nitrate, aluminium nitrate, hydrazinium perchlorate, alkali metal perchlorates, and calcium perchlorate. Finely divided silica, guar gum, a carboxy vinyl polymer, or carbon black may be added as gelling or thickening agents and water, glycerine, glycol, wax, orhydrocarbon stove oil as desensitizing agents. In order to depress the freezing point of the composition, hydrazinium thiocyanate may be included.
Patent GB-753283-A (GB)
Abstract: 753,283. Making sparking-plugs. REITER, F., and SPODIG, H. June 15, 1954 [June 16, 1954], No. 17602/54. Classes 83 (2) and 83 (4). Powder metallurgy.-The outer housing of a sparking-plug is made by powder metallurgy, either separately from the central insulator or by moulding metal powder around the core and sintering it in situ. In the latter case the insulating core may first be coated with a suitable metal such as copper to improve the bond between the insulator and housing. The heat value of the plug may be controlled by varying the moulding pressure, the size of the powder grains and by impregnating the sintered housing, which is usually of steel, with a metal of higher conductivity, e.g. copper.
Patent GB-2002028-A (GB)
Title: Electrical insulating oil
IPC: H01B3/22
Filed: 1978-07-28
Abstract: The composition consists essentially of (I) 50 to 95 parts by weight of a mineral oil-derived electrical insulating oil, (II) 5 to 50 parts by weight of at least one compound selected from arylalkanes and diarylalkanes, and (III) 0.001 to 1.0% by weight of a hydrocarbon pour point depressant, based on the total weight of compounds (I) and (II).
Patent GB-2005629-A (GB)
Title: Hydraulically-operated rear loading ramp
IPC: B60P1/43
Filed: 1978-07-28
Abstract: A loading ramp 2 for a vehicle such as a heavy duty trailer and which is hydraulically operable between a stowed position and a loading and unloading position by means of a fluid-operated piston and cylinder unit 4 connected between a ramp member 2 and an intermediate portion of a lever 11 which is connected at one end to the vehicle and that the other end engages a cam surface 15 on the ramp. <IMAGE>
Patent GB-2004575-A (GB)
Title: Method and apparatus for continuously stranding thick linearly extended material
IPC: H01B13/04
Filed: 1978-08-17
Abstract: Strands which are to be assembled together in the manufacture of (e.g.) thick cables or ropes are passed through a stranding apparatus wherein they are held and stranded together in a stretched state while being advanced from a first to a second stranding point. One or more gripping jaw or tong assemblies may be employed to engage the material and revolve while travelling along with it. Strand handle 1a is rotated and advanced by driven chains 6 having strand-gripping jaws 7. <IMAGE>
Patent GB-2003684-A (GB)
Title: Digital-to-analog converter arrangement for electronic tuner
IPC: H03J5/02
Filed: 1978-08-25
Abstract: An electronic tuning type receiver comprises a digital-to-analog converter 1 and a memory 5 adapted to store a digital input value obtained by counting pulses generated by a manual operation. In one embodiment an up-down counter is also employed. The digital- to-analog converter generates a pulse signal having a period or a pulse width corresponding to an output of the memory or counter, and a tuning section receives as a tuning signal an analog output signal of the digital-to-analog converter. The receiver further comprises an electric source "off" state detecting circuit 11-13 which, when both the output of the digital-to- analog converter and the output of an electric source Vcc are in an "off" state, operates to disable the converter. In another embodiment the up-down counter and pulse oscillator are disabled when the power is switched off. <IMAGE>
Patent GB-2006259-A (GB)
Title: Hydrocarbon conversion
IPC: C10G69/06
Filed: 1978-10-04
Abstract: Olefins are manufactured by a thermal cracking process in which the feedstock is a mixture comprising naphtha and a hydrogenated hydrocarbon cut which is heavier than naphtha, for example a hydrogenated kerosene or distillate boiling in the gas oil range.
Patent GB-2012126-A (GB)
Title: Food heating systems
IPC: A47J39/02
Filed: 1979-01-08
Abstract: A system for electrically re- heating food enables the food to be heated to a first temperature range for a predetermined time period and thereafter maintains the food at a second, lower temperature range. The system includes a mobile cart having its own rechargeable power pack that may by utilized to propel the cart. The cart has separate bays 1, 2 each having a tier or racks for carrying individual food serving trays. Each tray has one or more thermally isolated heat transfer devices which are selectively energized when the tray is in place on a rack in the cart. The trays are constructed to carry conventionally styled, removable dishes, bowls, cups, etc., that may be either disposable or reusable. Preferably, each tray has a pair of heaters referred to herein as plate and bowl heaters and adapted to be operated by control means. The manually selected heaters associated with trays in all bays are operated for a predetermined period of time of, for example, 25 minutes, to re-heat the food from a frozen or at least cold state to a temperature of the order of 170 DEG F.-180 DEG F. Thereafter, the heaters in predetermined bays are operated cyclically to hold the food at the desired temperature range. <IMAGE>
Patent GB-2025039-A (GB)
Title: Focussing Method and Apparatus
IPC: G02B7/32
Filed: 1979-04-03
Abstract: The invention relates to the focussing of an image of a periodic raster 1, e.g. to adjust or test a lens 5. The image is formed by an optical system 2, 3, 4, 5, 7, 9 on a row of photodiodes 10 and, to avoid the need for any mechanical movement, the diodes are scanned electronically and sequentially by a scanning device 11. The sequence of signals produced by successive scannings is fed to an oscillatory circuit 12 tuned to the frequency of the signals produced by the scanning and the output of the oscillatory circuit 12 is fed by way of an impedance transformer 13 to a display device 14. Focussing is achieved by maximising the amplitude A of the displayed oscillatory signal. Because the diode array length is unlikely to correspond to the spacing of the raster image lines, the deviced 11 can introduce a delay between successive scans so that the signals produced in each scan are in phase. <IMAGE>
Patent GB-2018654-A (GB)
Title: Apparatus for reducing the width of a metal strip
IPC: B21H7/00
Filed: 1979-04-10
Abstract: A metal strip 21 for forming a taper leaf spring has its width reduced by passing it through grooved rolls 22a, 22b which have flanges 4 on either side of the grooves to constrain the expansion of the thickness of the strip at its edges. The rolls can be controlled in dependence on the contour of a template 21a. <IMAGE>
Patent GB-2019127-A (GB)
Title: A current-conducting roll and a manufacturing process therefor
IPC: C25D7/06
Filed: 1979-04-17
Abstract: A current-conducting roll for the transfer of heavy electric currents e.g. in electrolytic strip-finishing installations, comprises a roll body 1 and a conducting outer jacket 4 having its outer ends sealed, the space between the roll body 1 and the outer jacket 4 containing cooling tubes 2 and being filled with an electrically conducting metal 3. The conducting metal layer is introduced into the space between the roll body 1 and outer jacket 4 by casting under vacuum or a protective gas atmosphere, the roll body 1 and the jacket 4 being preheated to the casting temperature. <IMAGE>
Patent GB-2020436-A (GB)
Title: Improvements in or relating to ampere - hour meters
IPC: G01R21/00
Filed: 1979-04-30
Abstract: An ampere-hour meter has a current generator 4 connected across a resistance 3 through which the load current passes, generator 4 charging a capacitor 11 with a charging current which is proportional to the current in the load circuit, but is independent of the voltage across the capacitor 11, a bistable 10 which is triggered each time the voltage of capacitor 11 reaches a given value so that capacitor 11 is discharged by a transistor 12, and a counter 6 which advances by one unit after a given number (e.g. one) of discharges of capacitor 11. The charging current of battery 1 may be monitored by a second such counting arrangement to allow the state of battery charge to be deduced, or one up/down counter may be arranged to indicate this. <IMAGE>
Patent GB-2026087-A (GB)
Title: A radial piston machine
IPC: F04B1/113
Filed: 1979-06-15
Abstract: This invention relates to a radial pump or motor comprising a cylinder block 5 receiving pistons 9, and which rotates on a control journal 4. Two opposite control ports 19 and 20 for the control of pressure medium are provided on the control journal 4 and are surrounded by sealing webs 25 extending around the entire control journal 4. The webs are formed as a surface projecting beyond the outer surface of the control journal 4. In operation, there are formed between the control ports 19 and 20 and the sealing webs 25, pressure fields which are of varying widths in the peripheral direction of the control journal 4 due to the shape of the sealing web 25 and the centre of action of which coincides substantially with the point of engagement of the force loading the control journal 4. <IMAGE>