baber/WOPTO huggingface dataset:
Patent GB-423685-A (GB)
Title: Improvements in and relating to television and like systems
IPC: H04N5/10
Filed: 1933-11-03
Abstract: 423,685. Television. MANIFOLD, M. BOWMAN-, Heathcot, Worplesdon Station, Surrey, and PERCIVAL, W. S., 6, York Mansions, York Avenue, Hanwell, Middlesex. Nov. 3, 1933, No. 30624. [Class 40 (iii)] A thermionic valve 7 separates two differing sets of synchronizing signals which are applied to an input circuit 5 between its control grid and cathode, and each of two oscillators 18, 31, controlled respectively by the two sets of signals, are associated with different electrodes of the valve. Pulses in the anode circuit 10 of the valve are passed to the screening-grid of the line-frequency oscillator 18. A resistance 14 and condenser 15 between the cathode of the valve and the negative terminal 35 of the high-tension source have a small impedance to the short line-frequency signals but a large impedance to the longer framing signals. The grid of the framing-oscillator 31 is connected to the cathode of the valve 7. A condenser 6 and resistance 8 in the grid circuit of the valve 7 provide a negative bias greater than that corresponding to zero anode current.
Patent GB-1480272-A (GB)
Title: Apparatus for use in spectrum analysis
IPC: G01R23/16
Filed: 1975-07-02
Abstract: 1480272 Spectrum analyzer MARCONI INSTRUMENTS Ltd 2 July 1975 [11 July 1974] 30690/74 Heading G1U An input signal 1 has its frequency increased or decreased by an indicated 30 amount to provide a signal 9 for a spectrum analyzer (not shown), thereby extending the frequency range of the latter. The frequency shift is determined by a voltage 17 from a manually set potentiometer (not shown) and is constrained by a phase-locked loop to vary in discrete multiples of 50MHz. The frequency changing signal path includes filters 3, 6 and mixers 4, 7 and is so arranged that the effective frequency shift between the reference signals applied to mixers 4 and 7, is a multiple of 50 MHz irrespective of any slight drift in the reference frequencies themselves, and this difference is accurately maintained at a discrete multiple of 50 MHz by reference to a standard frequency 10 from the spectrum analyzer. Thus, the standard frequency 10 from the spectrum analyzer first locks an oscillator 12 to 50 MHz and this in turn, via a loop 16, 18, 21, 15 locks a voltage controlled oscillator 18 a multiple of 50 MHz away from an oscillator 22, irrespective of drift in the oscillator 22. The actual difference frequency is measured 26, 27, 28, 29 and indicated 30, a minus sign indicating a downward shift. If the loop 16, 18, 21, 15 is not properly phase locked, as when the frequency shift is being altered, a blanking signal 31, 32 inhibits any indication. The system described also includes a chain 35, 36, 37, 38, 39, analogous to the signal shifting chain 2, 3, 4, 6, 7, for shifting in a corresponding way, a swept signal 34 from the tracking generator output of the spectrum analyzer.
Patent GB-842433-A (GB)
Title: Two stroke cycle internal combustion engine
IPC: F02B25/00
Filed: 1958-09-25
Abstract: 842,433. Two-stroke engines. DE MARTIN, R. R. Sept. 25, 1958 [Oct. 1, 1957], No. 30696/58. Class 7(2). In an engine in which combustible mixture is drawn into the crankcase via a flap valve 54 and delivered to the working cylinder via a transfer duct 84, a working piston enlargement 44 draws in scavenge air via a flap valve 74 and delivers it via a piston cut-out 88 to the duct 84 at piston T.D.C. ready for entry to the working cylinder in front of the mixture at the end of the next power stroke. The engine may be air or water cooled and operate with spark or compression ignition, and may have a detachable cylinder head.
Patent GB-1492399-A (GB)
Title: Garments
IPC: A41F9/02
Filed: 1975-06-30
Abstract: 1492399 Garment waist bands BRIGGS JONES & GIBSON Ltd 30 June 1975 [11 July 1974] 30713/74 Heading A3V A waisted garment includes a pair of side bands 15 joined to a central strap 12 that can be fastened in a closed loop. Each side band is attached at 14 to the strap, passes through a loop 17, then either through an aperture 18 or another loop, and is doubled back inside or outside the garment. The end is secured to the garment.
Patent GB-1017325-A (GB)
Title: Improvements in and relating to apparatus for spreading or sowing granular materials
IPC: A01C15/00
Filed: 1964-08-04
Abstract: 1,017,325. Distributing granular material. LANDBOUWWERKTINGEN EN MACHINEFABRIEK H. VISSERS N.V. Aug. 4, 1964 [July 24, 1963; Oct. 18, 1963 (2)], No. 30738/64. Heading A1D. To enable a conveyer screw 8 in the bottom of a hopper 1 to operate only when the hopper is partially empty a spring member 18 is provided in the drive to the screw 8 which drive includes a pawl and ratchet device 10, 20 so that the spring takes up the movement of a driving member 13 when the reaction of the material on the screw exceeds a predetermined value. A liquid or gas filled cylinder and piston may replace the spring 18. As described the material is distributed from the hopper by a reciprocatable spout.
Patent GB-533982-A (GB)
Title: Improvements in or relating to high frequency electric cables
IPC: H01B11/18
Filed: 1939-11-24
Abstract: 533,982. Cables. TELEGRAPH CONSTRUCTION & MAINTENANCE CO., Ltd., and SMITH, E. W. Nov. 24, 1939, No. 30775. [Class 36] Spacing washers of ceramic or other non- resilient material are secured on the conductor 1 or conductors of an air-space cable, by forming the washers of complementary parts 2, preferably semicircular, which are held by circumferential bands, such as the metal band 3 held by a buckle A in a recess, Fig. 1, or a spring wire ring in a groove in the periphery, Fig. 2 (not shown). The central apertures are arranged to fit the conductor 1 closely, but a gap is left between the opposing diametral edges of the parts 2. The whole may be enclosed in a conductor as described in Specification 526,702. Specifications 467,268 and 470,760 also are referred to.
Patent GB-1130624-A (GB)
Title: Improvements in or relating to tipping vehicles
IPC: B60P1/34
Filed: 1966-07-08
Abstract: 1,130,624. Vehicles with raisable tipping bodies. J. W. APPLETON. 5 Oct., 1967 [8 July, 1966], No. 30788/66. Heading B8E. A modification of the tipping vehicle of 968,570 wherein the side members 19 of the subsidiary frame 18 are extended with an upward joggle 20 and the pivoted links 16 are extended at 21 to slidingly support arms 23 pivoted to the subsidiary frame 18 to slidingly support the tipping frame 26. The arrangement gives an increased lift to the frame 26 while keeping it horizontal during its raising and avoids increasing the length of the vehicle. Operation is by multistage rams 30, 31 to raise the subsidiary frame 18 and by a multi-stage ram 33 to effect tipping of the frame 26.
Patent GB-762724-A (GB)
Title: Improvements in fuel injection devices for internal-combustion engines
Inventor: LEACH JOHN
IPC: F02M51/08
Filed: 1954-10-26
Abstract: 762,724. Regulating; valve gear. WILMOT, Ltd., K. Oct. 25, 1955 [Oct. 26, 1954], No. 30797/54. Class 7 (6). [Also in Group XXXVII] The energization of solenoids F<SP>1</SP> operating fuel injection valves F<SP>2</SP> situated in the cylinders or induction manifold is controlled by a distributor comprising a rotating arm B carrying a contact b engaging in succession contacts E connected to the solenoids F<SP>1</SP>, the arm B being displaceable along its axis of rotation by a piston D actuated by intake manifold suction. The arm B is rotated by an engine driven shaft A which is connected to the piston D. A ball race d<SP>1</SP> may be provided between the piston D and arm B. The contacts E are triangularly shaped so that as the arm B is raised with increasing intake manifold suction, the period of energization of the solenoids F<SP>1</SP>, and hence the period of injection through each injector, is decreased.
Patent GB-409691-A (GB)
Title: Improvements in or relating to magnet cores for use in loading coils or the like
IPC: H01F1/24
Filed: 1932-11-02
Abstract: 409,691. Inductances. AUTOMATIC ELECTRIC CO., Ltd., Strowger Works, and ROSEBY, P. N., 57, Moscow Drive, both in Liverpool. Nov. 2, 1932, No. 30890. [Class 37.] A magnet core for loading coils &c. is made from finely divided magnetic particles of an alloy of iron, nickel and cobalt, preferably in the proportion of 3 : 1 : 1, insulated from one another by a coating of barium hydroxide. The process preferred comprises heating the magnetic powder approximately to 850‹ C., cooling, mixing with a solution of barium hydroxide, treating with synthetic resin varnish, pressing to agglomerate and subsequently heating to approximately 460‹ C. in the absence of oxygen and cooling rapidly. Specification 387,010 is referred to.
Patent GB-742909-A (GB)
Title: Process for refining lubricating oils
IPC: C10G71/00
Filed: 1953-11-09
Abstract: A continuous process for refining mineral lubricating oil fractions in order to improve their oxidation- and colourstability and to reduce their tendency to foam, comprises continuously contacting the fraction in a first zone with an aqueous extracting agent comprising an aqueous mixture of a monohydric alcohol having 1-5 carbon atoms per molecule and an alkali metal base or alkaline earth base, contacting the treated fraction countercurrently in a second zone with water and recovering the washed fraction for drying and further refining. The monohydric alcohol is recovered from the spent aqueous extracting agent.  The process may be used to supplement other refining processes such as solvent refining, dewaxing, acid-treating and clay-treating.  Thus, an oil refined according to the process of the invention may be treated with concentrated sulphuric acid and Fuller's earth.  The monohydric alcohol may be methyl or ethyl alcohol, while the basic material may be a carbonate or hydroxide, particularly sodium hydroxide.
Patent GB-1275184-A (GB)
Title: Quaternary ammonium derivatives of epichlorohydrin polymers
IPC: C08G65/00
Filed: 1970-06-25
Abstract: 1,275,184. Flocculating sewage sludge FIRESTONE TIRE & RUBBER CO 25 June 1970 [30 June 1969] 30982/70 Heading C1C [Also in Divisions C3 and C4-C5] Elutriated sewage sludge is flocculated by the addition of quaternary ammonium polymers obtained by reacting a tertiary amine such as trimethylamine or pyridine with a homopolymer of epichlorohydrin or a copolymer of epichlorohydrin or a copolymer of epichlorohydrin and an alkylene oxide, the quaternated polymers having a molecular weight of at least 150,000.
Patent GB-189769-A (GB)
Title: Improvements relating to recording devices
IPC: G01D15/24
Filed: 1922-11-13
Abstract: 189,769. Soc. Industrielle de MÚ- canique, (Assignees of Cheron, E.). Dec. 1, 1921, [Convention date]. Recording by distinctive marks. - Consists in means whereby the marking stylus is pressed against the recording disc, drum, or travelling- strip and so arranged that the pressure for all positions of the stylus will be constant, the said means being mounted independently of the stylus. As shown applied to a timedistance recorder for vehicles the stylus 3, which is mounted on an arm 6 carried by a lever 4 actuated by a cam 5 that is rotated by a moving part of the vehicle, is pressed against a recording disc 1, rotated by a clockwork mechanism 2, by means of a spring 7 secured to the cover of the instrument casing. The spring 7 is of such a shape that it exerts a constant pressure on the stylus throughout the extent of its movement. When the case is opened the spring 7 will no longer press the stylus against the disc so that the record is interrupted.
Patent GB-235481-A (GB)
Title: Improvements in the springs used in upholstered chairs, couches, seating, cushions, mattresses and other upholstered goods
IPC: A47C23/043
Filed: 1924-12-24
Abstract: 235,481. Joseph, J. Dec. 24, 1924. Helical springs. - Upholstery spring elements consist of a pair of coiled springs that are threaded one into the other, the inner spring being enveloped or surrounded by fabric or other suitable material to eliminate noise. As shown, the inner spring 2. which is of truncated conical form, is enveloped by a fabric 3 and is threaded into an outer spring 1 of the usual double conical form. In modifications, the inner spring may be of large diameter at its centre and taper towards the ends, its centre coil being of larger diameter than the centre coil of the outer spring, or the two springs may be of truncated conical form with the smaller end of each spring directed towards the larger end of the other spring.
Patent GB-1189874-A (GB)
Title: Novel Yarn and its Production
IPC: D02J1/00
Filed: 1967-07-06
Abstract: 1,189,874. Interlaced yarn. FIBER INDUSTRIES Inc. 6 July, 1967 [6 July, 1966], No. 31171/67. Headings D1D, D1F and D1W. A process for producing a compact cohesive yarn comprises feeding a twistless or substantially so bundle of filaments under tension through a zone in which it is subjected to two or more fluid streams directed tangentially to the bundle so that peripheral filaments are wrapped round the substantially undisturbed inner filaments in one direction of twist by one stream and in the opposite direction of twist by another stream, the treated bundle being withdrawn past a member against which it is pressed by the tension in the bundle. The bundle is preferably maintained under a tension of between 0.05 and 0.10 grams per denier, but tensions up to 0.65 grams per denier may be used. The yarn produced comprises a core of substantially parallel filaments held together by a surrounding network of filaments, which yarn when floated on water loses its cohesiveness by separation of the filaments.
Patent GB-1491363-A (GB)
Title: Preheating oil shale prior to pyrolysis thereof
IPC: C10B49/10
Filed: 1975-07-25
Abstract: 1491363 Heating oil shale OIL SHALE CORP 25 July 1975 [29 July 1974] 31239/75 Heading C5E Crushed raw oil shale is heated by entraining in a hot gas in a first dilute phase fluidized bed (i.e. a gas lift zone) and the preheated oil shale is then passed through at least one further dilute phase fluidized bed; the preheated shale is heated in the final dilute phase fluidized bed to between 400 and 650 F. with hot flue gas and the partially cooled flue gas from the final bed is passed through an incineration zone, thereby incinerating the entrained oil shale fines and hydrocarbon vapours; the flue gas from the incineration zone is cooled and the cooled flue gas is used to heat oil shale in at least one of the dilute phase fluidized beds other than the final bed. Crushed raw shale is heated in a first dilute phase fluidized bed 10 and then passed through the second bed 12 and the final bed 22 and into the retort 30 in which it is heated by hot ceramic balls from a heater 14 to produce a shale oil vapour stream 48, processed shale solids 50 and cooled balls which are recycled to the heater 14. The flue gas 44 from the heater 14 is cooled with air 31 and used to heat the shale in the bed 22. The gas 23 leaving the bed 22 is passed through an incinerator 24 which has a heat recovery zone 24 (d) which cools the gas from 1400-1500 F. to 800 F. The shale in the middle zone 12 is heated with a portion 21 of the cooled gas from zone 24 and the raw shale is heated in the first zone 10 with a mixture of cooled gas 21 from the zone 24 and cooled gas 13 from the zone 12. In an alternative procedure, the gas 13 from the zone 12 is passed through a second incineration zone, cooled and then used in the first bed 10.
Patent GB-283566-A (GB)
IPC: H01M50/443
Filed: 1927-11-21
Abstract: 283,566. Ziegner, H. Jan. 14, 1927, [Convention date]. Porous indiarubber.-Indiarubber is rendered porous by the addition of a porous material such as wood sawdust which is first saturated in a swelling medium such as benzine, the latter causing the rubber in contact with the particles of the porous substance first to swell and then, during the drying operation, to contract and loosen itself from the particles. In an example given, the mixture contains 100 parts caoutchouc, 7¢ parts sulphur, ¢ part accelerator, 50 parts lithopone, 75 parts chalk, 200 parts sawdust and 100 parts benzine. The porosity may be increased by adding water, which evaporates during vulcanization and so enlarges the capillaries.
Patent GB-467661-A (GB)
Title: Improvements in or relating to the packing of discs
IPC: B65B11/04
Filed: 1935-11-12
Abstract: 467,661. Wrapping-machines; packages; unpacking. AKTIEBOLAGET ALKA ALUMINIUMKAPSLAR, and ROOTH, G. Nov. 12, 1935, No. 31334. [Class 94 (i)] Bottle - sealing discs are assembled and wrapped in cylindrical packages to form cartridges as shown in Fig. 1. A number of discs a<1>, are deposited in a tube which is then placed on a support between two rollers r, s, and the tube withdrawn to allow the discs to be inspected. The wrapping paper b is inserted between the discs and the roller r and roller t is applied to force the discs into contact with the paper which .is then drawn round them. Gummed strips f may be added or the package may be closed by gumming the longitudinal edge of the wrapper e.
Patent GB-1318529-A (GB)
Title: Wrap around carrier
IPC: B65D71/00
Filed: 1970-06-30
Abstract: 1318529 Wrap-around carriers CONTINENTAL CAN CO Inc 30 June 1970 [1 July 1969] 31693/70 Addition to 1203495 Heading B8C The carrier described in parent Specification is modified in that the two end panels interlock at one side of the bottom of the carrier rather than at the centre of the bottom. The carrier may thus hold a single row of containers, the upright tabs then being sandwiched between the containers and a side wall of the carrier.
Patent GB-505986-A (GB)
Title: Improvements in or relating to automatic gain control circuit arrangements
IPC: H03G3/22
Filed: 1937-11-18
Abstract: 505,986. Automatic volume control. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and PARKER, G. P. Nov. 18, 1937. No. 31763. [Class 40 (v)] An automatic -volume-control potential for a high frequency amplifier is obtained from rectified signals derived from the input circuit to the last valve 3 to which the control is applied, the derived signals being first amplified in an auxiliary valve 7 which is also subject to A.V.C. control. The control on the valves 2, 3 may be such that an increase in input signal strength produces a decrease in output strength but where it is only required to produce a constant output, only part of the rectified potential across resistance 9 may be applied to valve 3. The control on the auxiliary valve 7 may also be partial by means of a tapping 12. The circuit shown is particularly suitable for continuous wave telegraphy since a heterodyne oscillator 14 may be directly coupled to the input circuit of the demodulating detector 1 without any reaction between the gaincontrol circuit and the local oscillator energy. Specification 456,100, is referred to.
Patent GB-537124-A (GB)
Title: Improvements in cord assemblies, particularly for parachutes
IPC: B64D17/00
Filed: 1939-12-08
Abstract: 537,124. Parachute equipment. FINLAYSON, D. GREENWOOD, E. L., and LATHAM, L. Dec. 8, 1939, No. 31766. [Class 4] [Also in Group XXV] The attachment for an assembly of shroud lines of a parachute described in Specification 518,101 comprising a member 1, sliding on the loops 18 formed at the ends of the shroud lines 2 when the load is applied thereto, and a connecting member 3 for linking the loops with the harness of the parachute, is modified by providing the connecting member with evenly spaced radial passages 7 through which the loops pass and are thereby prevented from fouling each other. The passages 7 are disposed in an annular part 6 of the connecting member, the part 3 integral therewith having slots 4, 5 for the reception of the harness straps. The passages are formed by drilling the part 6 and slotting out the holes upwardly the grooves so formed being closed by a metal ring 8 which is welded and screwed into an annular groove of corresponding section turned out of the face of the part 6. The sliding member 1 consists of a body similar to the upper half of the corresponding member described in Specification 518,101, a single apertured flange 10 only being necessary. The shroud lines 2 from the canopy pass through a ring of separate holes 11 in the flange and their return ends pass through separate holes 13 disposed in two rings through the whole thickness of the sliding member. The ends are secured together to form a tail 14, such as by adhesive thread 19. The curvature of the shoulder 15 of the sliding member may be varied according to the amount of friction desired. In the closed position of the loops, the parts 1 and 3 of the attachment fit snugly face to face. The attachment is preferably used with an assembly of 12 shroud lines, two such attachments being required for the'usual parachute of 24 cords.
Patent GB-1099928-A (GB)
Title: Speed detection
Inventor: WEIR ROBERT JAMES
IPC: G01P1/10
Filed: 1965-07-26
Abstract: 1,099,928. Digital speed measurement. IMPERIAL CHEMICAL INDUSTRIES Ltd. April 13, 1966 [July 26, 1965], No. 31783/65. Heading G4H. The speed of rotation of a shaft is detected by measuring the interval between pulses produced by the sensing of a portion of the shaft and comparing the interval with a standard interval. The shaft is provided with two portions diametrically opposite, so as to make two pulses per revolution. These are applied to a binary unit A which is set by the first and reset by the second. The set output is applied to a second binary unit B which receives accordingly only alternate pulses. These set and reset the unit B so that it is set for one revolution of the shaft and reset for the next and so on. While the unit B is set it opens a gate to allow clock pulses to pass to a binary counter. If the system is to detect overspeed, the shortest acceptable period for one revolution, represented as a count is entered in the counter in complement form. Pulses are entered for the period of one revolution. If the counter has not been filled no signal is applied to reset a trip gate binary. At the occurrence of the third pulse from the shaft a display gate is enabled and, if the trip gate binary has not been reset, a trip gate gives a signal indicating that an overspeed condition exists. The counter reset gate is operated by the third pulse at the same time as the display gate. Means are provided to produce an alarm signal only when two successive trip signals are given. The display gate serves to connect the counter to a display during the period the count does not change. If an input pulse is missing this is detected by the provision of two monostable circuits having a set time of about 1¢ times the normal input pulse interval, connected to the set and reset output of binary unit A. A missing pulse is detected by a gate connected to the outputs of the two monostable circuits.
Patent GB-993417-A (GB)
Title: Improvements in tables
IPC: A47B5/04
Filed: 1961-09-05
Abstract: 993,417. Bracket tables. A. L. F. JACOBSSON. Sept. 5, 1961, No. 31819/61 Heading A4B. A wall table for hospital laboratories &c. has top plates A, B supported by brackets 1, 2 of which bracket 2 is supported by the wall and a pillar 5 and bracket 1 is supported cantilever fashion from the pillar the parts being secured together by locking bolts 9.
Patent GB-1390858-A (GB)
Title: Driving gear
IPC: F16H31/00
Filed: 1972-07-07
Abstract: 1390858 Friction ratchets F R RAMSTROM AB 7 July 1972 [16 July 1971] 31880/72 Heading F2Q In a friction ratchet arrangement wedges 7 and 8 selectively engage a groove 2 of a wheel 1 to drive this wheel in one direction or the other in response to movement of the piston-rod of an operating cylinder 4. A lever 3 is attached to the end of the piston-rod and carries the wedges 7 and 8, pivoted on spindles 5 and 6 respectively, the wedges being biased by a spring 11 into contact with a pin 9 which has flats bevelled on it so that it moves the wedges into or out of their respective operating positions on being rotated. In the position shown wedge 7 moves the wheel 1 counterclockwise as the rod is extended. A piston 4 may drive more than one edge assembly, which may have a common pin 9. Both wedges may be simultaneously engageable.