baber/WOPTO huggingface dataset:
Patent GB-1246084-A (GB)
Title: A rotary hydraulic machine having a rotor carrying radially slidable vanes
Inventor: JAGGER RAYMOND
IPC: F04C2/344
Filed: 1967-09-21
Abstract: 1,246,084. Rotary pumps. TOWLER HYDRAULICS Ltd. Sept. 16, 1968 [Sept.21, 1967], No.42996/67. Heading F1F. A rotary sliding vane pump of the multiple abutment kind comprising a rotor 24, Fig.6, having vanes 34 whose tips co-operate with a cam ring 32, Fig. 5 (not shown), including a cam surface having suction ramps α, delivering ramps y and maximum and minimum radii portions #, # therebetween includes means to hydraulically augment the force of springs 38 over the maximum and minimum radii portions of the cam surface. Each vane 34 which is formed with a peripheral groove 40 extending along its radial outer face and its two end faces includes a bleed bore 42, Fig. 2, or alternatively a bleed slot on its inner face which is masked by the vane slot when a vane passes over the portions of minimum radius. In operation, when the vane passes over a suction ramp both its inner and outer radial faces are connected to the suction port 21 so that the vane is in hydraulic balance and urged outwardly by the springs 38 and centrifugal force. When a vane passes over a delivery cam and is urged inwardly by the cam surface, both its inner and outer radial faces are subjected to discharge pressure, the bleed being ineffective, so that the vane is again in hydraulic balance and urged outwardly by the springs 38 and centrifugal force. In a vane passing over a maximum radius portion where there is no direct contact with either a supply or discharge port, pressure liquid enters the groove 40 through the bleed. The width of the vane, the width of the groove and the bleed are sized to that pressure acting in the inner surface of the vane exceeds that acting on the outer surface to augment spring pressure to urge the vane into sealing engagement with the cam surface with minimal force. In a vane passing over a minimum radius portion, discharge pressure is on the trailing face of the vane, and the closing of the bleed expels liquid from the vane slot it is stated the vane is in radial hydraulic balance and is maintained in contact with the cam surface by the springs and centrifugal force, so that at all times the vanes are maintained in sealing engagement with the cam surface with a minimal force to minimise wear on the vanes and cam ring.
Patent GB-908071-A (GB)
Title: Improvements in or relating to drum supporting frameworks or pallets
Inventor: POWELL CHARLES FREDERICK NELSO
IPC: B65D85/20
Filed: 1959-12-17
Abstract: 908,071. Stillages. CAMBRIAN ENGINEERING INDUSTRIES Ltd. Dec. 1, 1960 (Dec. 17, 1959], No. 43005/59. Class 78 (4). [Also in Group XVII] A pair of substantially cylindrical articles from 21 to 24 inches in diameter, particularly 40-gallon drums, are supported side-by-side on a framework comprising two sets of curved or V-shaped cradles such as 1, 2 and 5, 6, each of which supports such a drum with the ends of the cradles subtending an angle of from 65 to 110 degrees (preferably 95 degrees) at the drum centre. Each cradle is supported by two vertical struts such as 9, 10 with the four such struts 9, 10, 13, 14 supporting corresponding cradles of the two sets lying in a common plane with a spacing of from 7¢ to 22 (preferably 15¢) inches between the two innermost struts 10, 13 of the set of four. The struts mentioned, and the further horizontal struts completing the framework as shown, are so arranged that the drums may be deposited on the cradles by a fork lift truck which, without alteration of its fork spacing, may be used to lift the framework with its forks in the spaces immediately below the cross struts 21 and 28. As shown, the base of the framework incorporates further cradles 3, 4, 7 and 8 to allow for tiering of drums using a plurality of the frameworks.
Patent GB-1434409-A (GB)
Title: Method for measuring liquids and a device for the performing of the method
IPC: G01F1/00
Filed: 1973-09-13
Abstract: 1434409 Dispensing liquids DEMEKTOR AB 13 Sept 1973 [15 Sept 1972] 43158/73 Heading A4T [Also in Divisions F1 and G1 A device for measuring quantities of a liquid, e.g. beer, comprises an axially-twisted rotatable element 10 of rectangular cross-section having its ends skewed by at least 90 degrees and being located in the flow-path and arranged to interrupt intermittently by its rotation the passage of light from a source 5 to a photo-cell 4. A first channel 2, of rectangularly intersecting channels in a casing 1, contains a transparent pipe 6 on either side of which, in the intersecting channel 3, are arranged a filament lamp 5 and a photo-resistor 4. The pipe 6 contains fixing elements 7, 7' supporting a central axle 8 under the tension of a coiled spring 9, on which axle the element 10 is freely rotatably mounted in line with a row of balls 11. The rotatable element 10 is a twisted rectangular strip having its opposite endfaces skewed by at least 90 degrees. The ends of the pipe 6 are sealed by O-rings 12, 12' to the ends of bayonet pipe couplings 13, 13' detachably screwed into the casing 1. The photo-resistor 4 and lamp 5 are connected to a connector 14 arranged in a cylindrical recess 15, and are protected by cover-plates 16, 16'. The flow sensing device is coupled into a pipe 17 provided with a magnetic valve 20 and leading to a tapping cock 18. A counter 19 shuts the magnetic valve 20 after a predetermined number of photo-cell pulses have been counted, the number being that set by the manual operation of a preselector 21. A further counter 22 displays the number of discrete quantities of liquid dispensed, of whatever size.
Patent GB-1411980-A (GB)
Title: Reinforced and prestressed concrete structures
IPC: E04G21/12
Filed: 1972-09-19
Abstract: 1411980 Reinforced concrete beams R TAYLAR 13 Sept 1973 [19 Sept 1972 4 Nov 1972] 43230/72 and 50958/72 Heading E1W A reinforced concrete beam is formed from a plurality of prefabricated segments each of which are cast with their reinforcement tendons projecting from at least one end. Either the tendons may be continuous through a plurality of the segments so that they may be hinged for transportation or the projecting tendons are separate and must be joined 3 to form a composite tendon on site. The joining of the tendons, where necessary and the forming of a compression fillet 2 is made while the composite beam is supported on either side of the joint. Subsequent concreting around the tendons is completed after the central supports are removed and the beam completes its intended span. The reinforcement is prestressed in the segments and the exposed portion at the join tensioned by loading the beam prior to and during the casting the concrete around the tendons in the join, which loading is removed after this concrete has hardened. The compression fillet may be a steel cylinder engaged between steel angle sections embedded in the beam segment ends or may merely be concrete grout.
Patent GB-919090-A (GB)
Title: Improved motor vehicle driveshaft arrangement
IPC: F16C1/06
Filed: 1960-12-16
Abstract: 919,090. Flexible shafts. FORD MOTOR CO Ltd. Dec. 16, 1960 [Dec. 31, 1959], No. 43322/60. Class 80 (2). A flexible propeller shaft 20 for a motor vehicle is held bowed by bearings at its input and output ends and passes through a rigid tube 46 resiliently mounted on the vehicle frame by brackets 50, a light bearing within the rigid tube supporting the shaft adjacent each of the brackets. The bearings holding the shaft 20 bowed are mounted within the housing 18 of a dry plate or fluid clutch 19 converting the engine 12 to the propeller shaft and within the housing 22 of a combined change-speed and differential gear passing drive to the usual halfshafts. The rigid tube 46 may be closed at both ends and filled with lubricant. Reference has been directed by the Comptroller to Specifications 839,292 and 870,781.
Patent GB-1080627-A (GB)
Title: Electroluminescent device
Inventor: DUMKE WILLIAM PAUL
IPC: H01L31/153
Filed: 1964-10-27
Abstract: <PICT:1080627/C4-C5/1> A light-emitting device comprises an NPP zone structure in which the outer P region is doped with shallow level acceptors while the central zone contains deep level acceptors and is of higher resistivity than either outer zone. A typical device, Fig. 8, with a built-in injection luminescent diode is made by diffusing manganese, cobalt or chromium into a selenium, tellurium or silicon doped N-type gallium arsenide wafer.  If one face of the wafer is not masked during the diffusion the P layer formed thereon is removed. The same result is more economically achieved by cutting the wafer in half.  Zinc, cadmium or magnesium is then diffused into the wafer to a lesser depth to form P zones on both faces, the wafer diced and ohmic contacts made as shown to individual elements using tin on the N region and indium on the P zones.  A reflective coating 56 directs light from diode 16-50 on to radiation sensitive element 12, 14, 16. Another embodiment is similar but lacks P region 50.  In this case a separate radiation source is used and the device used as a light amplifier or, if the photons from the source are less energetic than those generated by the diode, as a quartum converter. The diode is made as described above except that the second P zone is removed or its formation avoided by masking, and may have a dichroic filter on its N surface to reflect back radiation generated within while admitting longer wavelength radiation from the source.  In the Fig. 7 circuit, not shown, the incident radiation is chopped at a frequency less than that of the alternating voltage fed to the diode.  A matrix of diodes may be used as an infra-red image converter or, if a gallium phosphide-arsenide alloy is used for the body to make infra-red images visible.
Patent GB-1528381-A (GB)
Title: Processing bar coded data
IPC: G06K7/016
Filed: 1975-10-27
Abstract: 1528381 Data transmission INTERNATIONAL BUSINESS MACHINES CORP 27 Oct 1975 [8 Nov 1974 31 Dec 1974] 43995/75 Heading H4P [Also in Division G4] Methods and apparatus for decoding distorted F2F coded signals, e.g. read from a magnetic record or an optical bar coded record (by a hand held reader) or received over a communications channel, are described in which search or inhibit windows are established to locate or inhibit certain transitions, e.g. mid cell transitions, to allow decoding, the duration of the windows being varied to account for print spread, e.g. in optically read bar codes, and/or the acceleration of the record relative to the reader. Print spread occurs where the ink used to form optically read bar codes spreads when applied to a record medium and therefore changes the times at which signal transitions occur when the record is read. The magnetic record equivalent is said to be intersymbol interference. A series of algorithms to decode F2F data correctly in the presence of print spread and/or acceleration are developed in the Specification (Tables 1A, 1B, and 1-5) for various types of coding, e.g. presence and absence of mid bit cell transitions between regular clock transitions denoting binary 1 and 0 respectively in which case a search window is established correctly to locate the midcell transition, or the polarity of the transition at the start of the bit cell in which case an inhibit window is established to remove any midcell transition and the remaining transitions are compared with a reference. The algorithms involve measuring, using a high frequency oscillator to drive counters, the intervals between certain transitions in a single binary 1 preamble bit, for print spread, and in two binary 1 preamble bits or one such bit and the first data bit for acceleration, and the data bits which the two cells preceding the current cell represent. Certain modifications are described, e.g. using any two consecutive 1-bits as if they were two preamble bits to recompute parts of the alogorithms. The Specification states that a programmed general purpose computer or specialized hardware logic circuits may be used to compute the duration of the windows, two embodiments of hardware logic being described in detail.
Patent GB-1451892-A (GB)
Title: Separators for electrolytic cells
IPC: H01M50/426
Filed: 1972-09-25
Abstract: 1451892 Coated electrode D E F E N C E  SECRETARY OF STATE FOR 19 Sept 1973 [25 Sept 1972] 44137/72 Heading B2E [Also in Division H1] A separator positioned between a positive electrode and a negative in an electrolytic cell comprises a moulding of particulate polymer material comprising particles having a nucleus of thermoplastic polymer material surrounded by a cross-linked polymer layer and an outer polar graft-copolymer layer. Preferably at least 30% of the particles have a diameter less than 100. The thermoplastics material forming the nucleus of the particles may also form the base polymer of the outer graft-copolymer layer and when cross-linked a cross-linked polymer layer. Preferably the thermoplastics material is selected from polyethylene, polypropylene, polytetrafluoroethylene, partially fluorinated polyolefins, partially chlorinated polyolefins or nylons. The comonomer of the outer graft-copolymer layer is preferably selected from acrylic acid, methacrylic acid, acrylamides or methacrylamides. The moulding form the separator may be produced by depositing the moulding on the surface of one of the electrodes by sintering the particulate polymer material into a coherent coating around the electrode using heat and/or pressure. Alternatively the particulate polymer material may be moulded into a case, envelope, sheet or film which is used to wrap around or encase one of the electrodes. The particulate polymer may be prepared by graftpolymerisation of a particulate thermoplastic polymer in a solution of a reactive monomer. In a typical example the particulate polymer is prepared by graft-polymerisation of polyethylene powder in an aqueous solution of acrylic acid. The grafted powder is then placed in a metal template on both sides of a silver electrode, the assembly placed between two sheets of photographic glazing plate and pressed in an electrically heated, hydraulic press. The electrolytic cell may be a battery, fuel cell, cell used for the production of metals and compounds by electrochemical separation methods.
Patent GB-981735-A (GB)
Title: Improvements in or relating to intelligence storage devices
Inventor: BREWSTER ARTHUR EDWARD
IPC: H03K23/00
Filed: 1960-12-23
Abstract: 981,735. Shift registers. STANDARD TELEPHONES & CABLES Ltd. Sept. 29, 1961 [Dec. 23, 1960], No. 44297/60. Heading G4C. [Also in Divisions H1 and H3] Intelligence storage apparatus comprises a semi-conductor strip containing a plurality of junctions with a negative resistance characteristic, a conducting body adjacent the strip to provide a network interconnecting some of the junctions, a strip conductor over the surface of the body to provide connections to the body at points opposite junctions and a strip conductor in contact with the opposite surface of the semi-conductor strip. Figs. 1 and 2 show a semi-conductor strip 10 on a backing plate 11. A plurality of tunnel junctions are provided in layer 10 by alloying of diffusing metal beads 13 and a strip 14 of resistive material is provided to contact each of the beads 13, with a thin neck portion between adjacent junctions which constitutes a resistance. Opposite each junction is an ohmic electrode 16 which contacts one of three strip conductors 17. Insulating material 18, 19, fills up the spaces between electrodes 16 and beads 13. The resistive portions are arranged to constitute resistors 21, 22 and 23 in the equivalent circuit shown in Fig. 3 which consists of a register for binary intelligence. Each stage has two stable positions. Three register stages are provided by the three input conductors 17 to ensure uni-directional transfer of intelligence through the resistor without losses; if conductors 17 are sequentially fed with a series of voltage pulses, each first overlapping the preceding pulse, intelligence passes continually down the register and the output may be fed back to the input to provide continuous circulation. Alternatively if potentials are maintained on any of the conductors 17 the arrangement may provide quasi permanent storage.
Patent GB-1313314-A (GB)
Title: Arrangement for the transmission of a beam of light modulated in accordance with data to be transmitted
IPC: G02B5/32
Filed: 1970-09-17
Abstract: 1313314 Holographic optical coupling LICENTIA PATENT-VERWALTUNGS GmbH 17 Sept 1970 [20 Sept 1969] 44527/70 Heading G2J In the optical transmission of data a light-beam passes from a first optical device 6 to a second optical device 7 via a hologram 8, the hologram being a record of the interference pattern of the diffraction image of the second optical device when illuminated by coherent light and a reference beam. Preferably the reference beam is transmitted from the first optical device. If desired the first optical device may be rigidly coupled to the hologram 8 by a transparent body 10. Alternatively two holograms in series may be used Fig. 4. The first optical device may also be a laser.
Patent GB-1004885-A (GB)
Title: Improvements in or relating to continuous dough dividers
Inventor: PICKUP HARRY
IPC: A21C5/00
Filed: 1962-11-26
Abstract: 1,004,885. Moulding dough. HENRY SIMON Ltd. Nov. 18, 1963 [Nov. 26, 1962], No. 44559/62. Heading B5A. A continuous dough divider comprises a rotor 8 having radial pockets and being rotatable in a housing having inlet and outlet openings 12 and 13 respectively, the inlet opening 12 being located adjacent a pressure-tight hood 6 which receives dough under pressure and the wall of which carries a pressure-sensitive element which controls the indexing of the rotor. The pockets are defined at one end by an axially adjustable end plate 23 and at the other end by individually adjustable plates 24. The indexing mechanism comprises a pawl-and-ratchet mechanism operated by a reciprocating motor and the arrangement is such that movement of the rotor to seal off a filled pocket does not take place until the pressure of the dough in the hood 6 is above a predetermined minimum. At each step of the rotor, a spray gun 54 is operated to spray parting oil into the interior of each empty pocket in turn. Specification 983,969 is referred to.
Patent GB-1004761-A (GB)
Title: Improvements in and relating to structural panels for floors
IPC: E04B5/26
Filed: 1961-12-15
Abstract: 1,004,761. Reinforced brickwork floor panels. D. LAMANNA. Dec. 15, 1961 [Dec. 17, 1960], No. 45033/61. Heading E1V. A preformed floor, &c. panel comprises a pair of reinforced concrete beams 43, 44 cast in spaces provided between a central and two terminal brickwork sections 1, 37, 38, which have load transmitting diagonals 5, 6, 7, 8, 49, 50, the beams having bases 15, 16 formed by brickwork having marginal parts which extend laterally into cavities 9, 10, 39, 40 in the brickwork sections 1, 37, 38. The parts of the brickwork bases 15, 16 which extend into the cavities 9, 10, 39, 40 have ribs which define cavities to receive projections 11, 12, 35, 36 on the brickwork sections 1, 37, 38, and also define cavities within which reinforcing rods 22, 23, 32 and 33 are arranged. Further cavities 13, 14, 41, 42 at the upper parts of the brickwork sections 1, 37, 38 impart an upper flange to the beams 43, 44. The single bricks in the bases 15, 16, may be replaced by two bricks side-by-side, Fig. 2 (not shown).
Patent GB-1360097-A (GB)
Title: Regeneration of absorbent for sulphur oxides
IPC: C01B17/16
Filed: 1971-09-28
Abstract: 1360097 Hydrogen sulphide; regeneration of absorbent NORTH AMERICAN ROCKWELL CORP 28 Sept 1971 [1 Oct 1970] 45193/71 Heading C1A Sulphur oxides are removed from flue gas by being contacted at a temperature of at least 350‹ C. with a molten salt mixture containing alkali metal carbonate to form alkali metal sulphite and/or sulphate, the alkali metal sulphite and/or sulphate is reduced to alkali metal sulphide by means of a carbonaceous reducing agent, and the so formed sulphide is converted back into carbonate and H 2 S by means of CO 2  and steam, the reduction step being carried out at at least 600‹ C. and the reduction temperature being maintained by addition of a supply of oxygen gas. Preferably the alkali metal carbonate melt is a mixture of lithium, sodium and potassium. As shown, the flue gas travels upwardly through the absorber 2 and contacts countercurrently a spray of molten carbonate discharged through a discharger 3. The desulphurized gas flows into a wire mist eliminator 7 to remove entrained droplets, then through a plurality of heat exchangers 9 and is discharged into the atmosphere. The sulphite/ sulphate containing melt collects in a heated sump 11 at the base of absorber 2. Part is recycled to the absorber via line 38, the remainder passing through an ash filter 40 to reducer vessel 17, where it is contacted with a stream of carbonaceous reductant 15. Suitable reducing materials include coke, charcoal and coal, fluidized coke in excess being preferred. Gaseous oxygen or air is also passed via line 16 into the reducer. A catalyst such as elemental iron, iron sulphide or iron sulphate may also be used in the reducing stage. The reduced material is transferred via heat exchanger 21 and line 22 to distributers 23 in a reformation vessel 24. CO 2  from reducer 14 is passed via cooler 26 and line 27 into vessel 24 together with steam from boiler 29. Excess CO 2  from 14 may be fed via line 28 to heat exchanger 9. H 2 S formed in vessel 24 passes through a mist eliminator and thence to a conventional plant 33 for conversion into sulphur or sulphuric acid. The carbonate melt in 24 is withdrawn via pump 36 and fed into the storage vessel 4 for use in the absorption stage.
Patent GB-1499939-A (GB)
Title: Loud-speaker output circuit
IPC: H03F3/20
Filed: 1975-10-31
Abstract: 1499939 Transistor amplifiers TOKYO SHIBAURA ELECTRIC CO Ltd 31 Oct 1975 [7 Nov 1974] 45574/75 Heading H3T A loud-speaker output circuit comprises a D.C. supply connected in series with a pair of transistors 31, 32 fed by an A.F. source 35, a biasing circuit 36 connected to the input electrodes of 31, 32, a loudspeaker coupled to a point 17 intermediate between the two transistors, and electrolytic capacitors 44, 39 across the supply and optionally in series with the loud-speaker, a plurality of non-polar capacitors 45-50 being connected in parallel with each electrolytic capacitor, whereby the loss/frequency characteristic of the electrolytic capacitors is compensated. The loss in electrolytic capacitors increases with frequency (curve a), Fig. 2 (not shown), giving rise to frequency distortion in an A.F. amplifier. By using parallel capacitors with dielectrics of either metallized paper (curve b), or polyethylene terephthalate (curve c), or polystyrene (curve d) the fidelity of amplification may be improved. Preferably the transistors are of complementary types fed by parallel inputs. In another embodiment the transistors (12, 13), Fig. 1 (not shown), are complementary FET's.