baber/WOPTO huggingface dataset:
Patent GB-1207476-A (GB)
Title: Recording media
IPC: H04N1/23
Filed: 1969-04-17
Abstract: 1,207,476. Electrolytic recording media. MUIRHEAD Ltd. 17 April, 1969 [23 April, 1968], No. 19580/69. Heading D2B. An electrolytic recording medium comprises a porous web, e.g. paper, or a woven fabric, impregnated with an electrically conducting solution containing calcium formaldehyde sulphoxylate and/or strontium formaldehyde sulphoxylate. Preferably 0.1-10% by weight of these sulphoxylates are present in the solution, and the porous web may be impregnated with 25-50% (by wt.) of solution. The solution may also contain a neutral, water-soluble salt which may be a chlaride nitrate or sulphate of an alkali metal, an alkaline, earth metal or ammonia, preferably strontium or sodium nitrates. There may also be present an alkaline substance which is a hydroxide of an alkali metal, an alkaline earth metal or ammonia, and a buffering salt may be present, e.g. a formate, acetate, carbonate, bicarbonate, borate, phosphate or tartrate of an alkali metal or an alkaline earth metal. The solution preferably has a pH of 7-11. Recording may be effected by passing a current through the medium between an anode which provides an ion which may be reduced by the calcium and/or strontium formaldehyde sulphoxylate to give a coloured mark, and a cathode. The anode may contain metallic silver, copper or iron. The cathode may be platinum, a platinum alloy, steel or nickel.
Patent GB-498688-A (GB)
Title: Improvements in or relating to high frequency circuit arrangements
IPC: H03G5/26
Filed: 1937-07-15
Abstract: 498,688. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and RUST, N. M. July 15, 1937, No. 19639. [Class 40 (v)] In a high-frequency amplifier, positive or negative controlled reaction is obtained by connecting the input and output circuits to points on an artificial or natural line in which standing waves at the operating frequency are set up, the tapping points being of relatively-fixed phase-relationship so that the amount of feed-back may be varied without varying the phase-relationship, for example in selectivity-control arrangements. In one arrangement, Fig. 1, the line 19 consists of a helix 19e in an earthed sheath, the line being five quarter-wave-lengths long and having one end 19a short-circuited by connecting the helix to the sheath. Positive-feed-back for each of the valves 1, 2 is obtained by connecting points 21, 24, 27 low down on the inductances of tuned circuits 4, 9, 18, respectively, through high resistances 20, 22, 25 to tapping points 19b, 19c, 19d at distances equal to one, three, and five quarter-wave-lengths from the shortcircuited end. Overall positive-feed-back in a multistage amplifier may be effected by connecting the input circuit of one valve to point 19c and the output circuit of the next valve but one or the next but three &c. to point 19d. Similarly negative-feed-back may be obtained by connecting the input of one valve to point 19c and the output circuit of the next valve or the next but two &c. to point 19d. The control of the amount of reaction may be effected manually, or automatically in dependence upon incoming signal strength or incoming disturbance or noise. Fig. 3 shows an arrangement in which positivefeed-back is effected by tappings to an artificial line consisting of inductances 19g and condensers 19h and negative-feed-back by an impedance network 28 in the cathode lead. Signals are fed from a high-frequency cable and bias dependent on the signal strength is supplied over lead 34. In the circuit shown in Fig. 4, the output circuit of the valve has a band pass coupling 39 and the cathode lead contains two negative-feed-back networks 36, 37 each resonant at one of the limits of the maximum band-width to be passed, the arrangement being. such that with a strong bias over lead 34 the selectivity characteristic has a flat top and steep sides whilst with decreasing bias the width is reduced and the curve "peaked." In Fig. 5 (not shown), a circuit generally similar to Figs. 3 and 4 is illustrated and suitable values for all the circuit elements are given.
Patent GB-722559-A (GB)
Title: Improvements in or relating to electric transmission systems
IPC: H04R3/12
Filed: 1952-08-05
Abstract: 722,559. Intercommunication systems. BIAL, W. Aug. 4, 1953 [Aug. 5, 1952], No. 19658/52. Class 40 (4). The common return conductor of the system disclosed in Specification 599,350 is replaced by a plurality of return conductors (C, D) equal in number to the transmission (go) conductors (A, B), the connections between the stations (15 to 18) and the return conductors (C, D) being via inductively coupled impedances (15c) similar to those (15a) used for the connections to the transmission (go) conductors, and the connections to the return conductors being asymmetrical with respect to those to the transmission (go) conductors for each station.
Patent GB-358007-A (GB)
Title: A new or improved method of and means for disintegrating materials
IPC: B02C19/00
Filed: 1930-06-28
Abstract: 358,007. Disintegrating material by centrifugal pressure. BLYTH, C. E., Hill, near Rugby. June 28, 1930, No. 19692. [Class 59.] Coal, coke, ores, &c., are disintegrated by subjecting the loose material to the pressure due to centrifugal force whilst retained within a drum or container revolving at the requisite speed which may, with certain hard materials, exceed 20,000 rev. per minute. The cup or flanged member a<1>, Fig. 1, rotates at high speed in a casing b and the material is projected into the cup by an ejector c. The cup may be provided with blades, and the coarse material falls to the bottom of the chamber and is again projected into the cup by the ejector c. The fines are collected through a conduit d. The cup, Fig. 2, comprises a disc a fixed to the revolving shaft and circumferential walls built up of annular rings a<3> which are gapped to form perforated slits a<4>. The material is fed to the cup through a perforation e in the casing b. The material is disintegrated in the cup and the fines projected through the slits a<4>. The machine may be used for separating the heavier particles from the lighter in such material as quartz &c.
Patent GB-576523-A (GB)
Title: Improvements in and relating to arc welding electrodes
IPC: B23K35/04
Filed: 1943-11-26
Abstract: 576,523. Uniting by fusion. O & F. CO., PROPRIETARY, Ltd. Nov. 26, 1943, No. 19763. Convention date, Sept. 18. [Class 83 (iv)] Arc-welding electrodes for welding austenitic chromium-nickel steel consists of a mild steel core wire with a coating containing 15-30 per cent of nickel and also chromium, molybdenum manganese and gas and slag-forming ingredients. It may also contain reducing or stabilising agents such as titanium, niobium or tantalum. The coating may be prepared from ingredients ground to 100 mesh or more and mixed with a binding agent such as sodium silicate to form a plastic dry mass which is extruded on the core under very high pressure such as at least 400 lbs. per sq. in. The coating may be from 1.5 to twice the diameter of the core. It may contain 15-30 per cent of nickel, 20-60 per cent of chromium, 4-10 per cent of ferrosilicon, 3-8 per cent of ferro-molybdenum, 4 to 10 per cent of ferro-manganese and the balance gas and slag-forming ingredients. One coating of thickness 1.85 times the core diameter consisting of 15 per cent of nickel powder, 27.6 per cent of chromium, 4.4 per cent of ferro-molybdenum, 4 per cent of ferro-manganese, 6 per cent of ferro-titanium and 43 per cent of flux produces a weld deposit containing 0.06-0.08 per cent of carbon, 10.3 to 10.6 per -cent of nickel, 18 to 18.5 per cent of chromium, 2.5- 2.75 per cent of molybdenum, 1.2-1.8 per cent of manganese and 0.5 to 1 per cent of silicon. Either alternating or direct current may be used. Specifications 299,604, 320,596, [both in Class 83 (iv)], and 528,901 are referred to. The Specification as open to inspection under Sect. 91 states that the electrode may be used for welding also chromium steels or may be used in the atomic-hydrogen process. This subject-matter does not appear in the Specification as accepted.
Patent GB-999985-A (GB)
Title: Improvements in or relating to pulse generators
IPC: H04B14/04
Filed: 1962-05-23
Abstract: 999,985. Tunnel diode pulse generating circuits. NIPPON TELEGRAPH & TELEPHONE PUBLIC CORPORATION. May 23, 1962 [May 25, 1961; June 8, 1961; June 14, 1961; June 27, 1961], No. 19901/62. Heading H3T. [Also in Division G4] A pulse generator comprising a negative resistance semi-conductor device and a shortcircuited delay line is arranged to generate a number of pulses in dependance on the duration of an input signal. Pulse generating circuits.-Fig. 5A shows a tunnel diode connected in series with a shortcircuited delay line 2 and biased by a source 3 via a load resistor R so that the tunnel diode is normally in its low voltage state. When a short-duration trigger pulse A (Fig. 7) is applied via resistor Rt, the tunnel diode is switched to ts high voltage state, transmitting a surge along the delay line, which, because of reflection at the short circuit, results in a double pulse A (Fig. 7). Longer duration trigger pulses B (Fig. 7) result in more than one cycle of waveform A depending on the duration of the trigger pulse. Waveforms C, D show the operation of the circuit on positive half cycles of sine wave inputs. In Fig. 6A (not shown) the source of trigger pulses is connected in series with the D.C. source 3 whilst in Fig. 6B (not shown) the trigger pulses are fed via a resistor to the cathode of the tunnel diode. Fig. 5B (not shown) depicts the relationship between bias and trigger pulse amplitude for monostable or astable operation. S-type negative resistance devices may be used instead of tunnel diodes. Analogue-digital conversion and delta modulation systems are described (see Division G4).
Patent GB-575266-A (GB)
Title: Ion exchange resins
IPC: C08G12/14
Filed: 1943-11-29
Abstract: Anions are removed from fluids, e.g. acids from water, alcohols, sugar, juices, &c., by contacting the fluid with insoluble material formed by condensing an aldehyde with a compound comprising two guanidine or biguanide groups attached to a common benzene ring to form a gel and then drying and grinding the gel.  p- and m-phenylene, p- and m-toluylene, p- and m-xylylene diguanidine or biguanides are specified and may be condensed with aldehydes and with aldehyde reactive substances, e.g. guanidine, alkyl and aryl guanidines, m-phenylene diamine, guanyl urea, biguanide, alkylene polyamines or their salts; substances reacting with aldehydes may also be present: phenol, cresol, aniline, dicyandiamide, urea, thiourea, aminotriazines; aldehydes specified include formaldehyde acetaldehyde, aldol, benzaldehyde, cinnamyl chloride and furfural. The diguanidine compounds and their biguanide analogues may be prepared as described in Journal of Organic Chemistry, Vol. III, p. 146.  In examples: (1) 1 mol. p-phenylene diguanidine is reacted with 4 mols. formaldehyde at 40 DEG  C. until a gel is formed which is dried at 80 DEG  C.; (3) 1 mol. guanidine, 4 mols. formaldehyde and 1 mol. p-phenylene diguanidine are treated similarly; (6) 1 mol. melamine, 8 mols. formaldehyde and 1.5 mols. triethanolamine are first reacted and then p-phenylene diguanidine chloride is added in the presence of sulphuric acid and water.
Patent GB-1283461-A (GB)
Title: Golf practice means
Inventor: WALKER JOHN
IPC: A63B69/36
Filed: 1970-04-25
Abstract: 1283461 Golf practice device J WALKER 26 April 1971 [25 April 1970] 20007/70 Heading A6D A golf practice device has a flexible sheet playing surface, one or more apertures 9 in one end for receiving a golf ball and an element 8 secured beneath said end for raising the end relative to the rest of the sheet. The sheet may be of carpeting material with a foamed rubber or plastics backing and the element 8 may be a wedge of foamed rubber or plastics.
Patent GB-1037918-A (GB)
Title: Improvements relating to roof supports for mine workings
IPC: E21D23/00
Filed: 1963-01-29
Abstract: 1,037,918. Advancing mine-roof supports. K. M. GROETSCHEL. Jan. 29, 1963 [Jan. 29, 1962; Nov. 10, 1962], No. 20050/64. Divided out of 1,037,911. Heading E1E. The subject matter of the present Specification is the same as that of the parent Specification but the claims differ.
Patent GB-1468729-A (GB)
Title: Method of packaging and dispensing a fluid under pressure and pressurised dispensing container
IPC: B65D83/58
Filed: 1974-05-07
Abstract: 1468729 Pressurized dispensing containers L'OREAL 7 May 1974 [7 May 1973] 20075/74 Heading F1R The contents of a pressurized dispenser 1 are pressurized by means of an expandable pouch 13 which contains a cartridge of liquefied propellant when inserted through the opening 2 during filling. After completion of filling and closure of the container a stopper in the cartridge is ejected or, in another embodiment, the cartridge is burst, by increasing the propellant pressure by warming the dispenser, so that the pouch expands to pressurize the contents. The pouch may be spiral shaped, Fig. 7 (not shown) and the dip tube may have a secondary inlet near the upper end.
Patent GB-589659-A (GB)
Title: Improvements in piezoelectric crystal arrangements
IPC: H03H9/17
Filed: 1944-10-17
Abstract: 589,659. Frequency modulation. WESTERN ELECTRIC CO., Inc. Oct. 17, 1944, No. 20103. Convention date, Oct. 21, 1943. [Class 40 (v)] [Also in Group XXXV] A potential-varied capacity is provided by a piezo-electric crystal such as Rochelle salt, sodium rubidium tartrate, sodium thallium tartrate, ammonium dihydrogen phosphate, potassium dihydrogen phosphate, and the corresponding arsenates or mixtures thereof, maintained at its Curie point temperature and non-resonant with respect to the frequency of the circuit in which it is connected. Such a crystal exhibits hysteresis effects and a considerable change of dielectric constant with change of applied voltage, and may be used for frequency modulation, harmonic production, or automatic tuning. The crystal is preferably of heavy-water Rochelle salt which has a convenient Curie point temperature. The frequency generated by a velocitymodulation tube is modulated by such a crystal 3, Fig. 4, with electrodes 4, 5 connected in the inner conductor 7 of the line 23 coupling the buncher and catcher resonators 21, 22, the coupling loops 24 being connected to the resonators through small condensers 24a. The modulating potentials from source 25 are applied to the crystal electrodes 4, 5 through the low- or band-pass filter 27, 28, 29. In a second embodiment, Fig. 5 (not shown), the crystal is connected across a coaxial line resonator associated with a triode oscillator to modulate its resonant frequency. As a harmonic producer, the crystal 3, 4, 5, Fig. 6, is connected across a sinusoidal wave source 50, 51, 52, the voltages produced by the crystal being applied to triode 53 in whose output circuit is a circuit 54, 55 tuned to the desired harmonic frequency. In a further application, the motor-driven tuning capacitor of a frequency modulation transmitter of the type described in Specification 546,677 is replaced by potential-varied crystal capacity. Specifications 362,377, 451,098, 531,841. and 535,507 also are referred to.
Patent GB-657320-A (GB)
Title: Improvements in or relating to organs
IPC: G10H3/16
Filed: 1948-07-28
Abstract: 657,320. Organs. HAYES, D. H. July 28, 1948, No. 20166. Drawings to Specification. [Class 88 (ii)] A reed organ is provided with a plurality of microphones arranged to pick up sounds of selected different frequency ranges of the organ, for amplification and reproduction by one or more loud-speakers. The microphones are mounted in a sound box, adapted to fit over the reeds on the wind chest, and provided with partitions to divide it into compartments each containing the microphone or microphones for a particular note group. Additionally or alternatively the microphones may be mounted in the wind chest which is then provided with suitable baffles. The microphones or groups of microphones may be connected through individual amplifiers to loud-speakers appropriate to the frequency range to be reproduced. Alternatively, a common amplifier may be used fed from the microphones via buffer amplifiers, and supplying one or more loud-speakers. Gain control and tone control devices may be included in the circuits, the former being suitably coupled to a hand, foot or knee control as a swell device. The organ may be blown by an electrically-operated bellows, air-compressor or fan.
Patent GB-441017-A (GB)
Title: Improvements in and relating to the tempering of glass sheets
IPC: C03B27/052
Filed: 1934-07-10
Abstract: 441,017. Tempering glass sheets. PILKINGTON BROS., Ltd., Tower Building, Water Street, Liverpool, FORBES, L. J. B., The Crossways, View Road, Rainhill, St. Helens, Lancashire, and WILSON, J., Triplex Works, Eccleshall Road, King's Norton, Birmingham. July 10, 1934, No. 20244. [Class 56] [See also Group XXIX] A method of cooling a glass sheet, during the operation of tempering, consists in absorbing the greater part of the heat removed from the glass by the evaporation of water projected in a state of very fine division against the sheet. The water may be obtained in a state of fine division by the condensation of steam in a current of air. For this purpose, a casing 1, Figs. 1 and 2, is provided with a number of nozzles 2 projecting from, and uniformly distributed over, its front surface. Air is blown into the casing through a pipe 3, and steam is admitted to the casing through a pipe 5. The steam condenses and forms a cloud which is projected through the nozzles 2 against the glass sheet. A number of tubes 9 are fixed between the front and back surfaces of the casing to allow the escape of steam produced by contact between the water and the hot glass. In another construction, steam is blown through a number of nozzles of injector type, so that air is drawn through the nozzles and condenses the steam. The glass may also be cooled by a very fine spray of water produced by any suitable device. In the construction shown in Fig. 4, a vertical pipe 15 supplies air or steam to a tube 17 having a number of small holes 18 formed in its wall. The holes lead into an annular water channel 19, and a tubular member 24, which screws into the casing of the channel 19, controls the flow of water through the holes 18. A streamline member 22, fixed centrally within the tube 17, restricts the bore of the tube in the plane of the holes 18 to a narrow annular slot. The air or steam passes through this slot with a high velocity, and water passing through the holes 18 is formed into a very fine spray.
Patent GB-1355480-A (GB)
Title: Process for the oxidation of olefine compounds
IPC: C07D301/19
Filed: 1972-05-02
Abstract: 1355480 Oxidation process RHONE-POULENC SA 2 May 1972 [3 May 1971] 20370/72 Heading C2C Oxygen containing organic compounds are prepared by oxidizing olefinic compounds containing at least three carbon atoms and at least one aliphatic carbon-carbon double bond using as oxidizing agent, uranium oxide, hafnium oxide or an oxo-metal compound of the general formula in which M represents Ti, Zr, Hf, V, Nb, Ta, Mo, W or U, L represents a monodentate or polydentate ligand, A represents an organic or inorganic anion or cation, B represents oxygen or sulphur, x is an integer greater than or equal to zero, p is equal to zero or one, m is a positive or negative integer, n is zero or a positive integer with the proviso that when p is zero or B is sulphur, n is not zero and there is one or more oxygen atoms directly bonded to the metal M and not bonded to an organic radical. Acetone is obtained from propylene while higher olefinic compounds give mainly oxiran derivatives. Liquid or gas phase operation is possible. The oxidizing agent may be regenerated by a separate treatment with oxygen.
Patent GB-866523-A (GB)
Title: Improvements relating to jet engine fuel control apparatus
IPC: F02K3/00
Filed: 1959-06-15
Abstract: 866,523. Fluid-pressure servomotor control systems. GENERAL MOTORS CORPORATION. June 15, 1959 [June 23, 1958], No. 20389/59. Class 135. [Also in Group XXVI] In a jet propulsion engine the fuel supply is controlled by a variable to each value of which corresponds an optimum rate of fuel flow, any increase or decrease of that rate of flow worsening the relationship between the variable and the fuel flow. In an embodiment the speed of an aircraft is detected by a pitot-static head 18 which is connected to a differential bellows device 25 supplying a bellows 49 with a pressure that is a function of airspeed, and fuel flow in a conduit 14 is detected by a restriction 26 with connections 27, 28 to a differential bellows device 30 that feeds a bellows 51 with a pressure that is a function of fuel flow. The bellows 49, 51 are connected in opposition to a beam 52 with a pivot 53 movable by a piston 58 which moves in response to variations of the throttling effect of valve members 64, 66 on the beam 52. Thus, should the fuel flow be below the optimum for giving maximum range at a particular airspeed a servo-piston 89 controlled by a rotary valve 94 will be moving in a direction to increase the fuel flow from a controller 13. This will improve the ratio between the airspeed and fuelflow responsive pressures in the bellows 49, 51 causing the piston 58 to move to the left to maintain the beam 52 in balance. The pistonrod 59 carries an abutment 67 that urges an assembly of pistons 68, 82 also to the left. Once the optimum fuel flow has been reached any further increase of flow will cause the piston 58 to move to the right so that the abutment 67 will throttle an orifice 72 causing pressure to act on a piston 77 which, through a ratchet 107 will turn the valve 94 through one step to reverse the connections to the piston 89, whereby the fuel flow is reduced. As the piston 77 passes an opening 79 it allows pressure-fluid to act on the piston 82 to reset the orifice 72 relative to the abutment 67 so that pressure is released from the piston 77 which is then returned by a spring 78 to be ready for the next actuation of the valve 94 which will occur when the piston 58, after first moving to the left due to an improvement in the airspeed to fuel-flow ratio consequent upon reduction of fuel flow, again moves to the right after the optimum flow is passed. If the variable is not a ratio but a single quantity dependent upon fuel flow, e.g. maximum ram pressure recovery in a ram jet engine, the ratio-determining mechanism 25, 30, 49, 51, &c. may be dispensed with and a total pressure - sensing device connected through servo-mechanism to the rod 59.
Patent GB-1507027-A (GB)
Title: Sealing device
IPC: H02G3/06
Filed: 1975-04-30
Abstract: 1507027 Cable termination HAWKE CABLE GLANDS Ltd 30 April 1975 [9 May 1974] 20420/74 Heading H2E A sealing device for electrical conductors comprises an outlet member 14 containing a seal 10 which either has bores 32 therethrough or has, for example, markings on both end faces so that bores may be made therethrough, and a second (inlet) member 22 having a single bore which engages directly or indirectly outlet member 14 so that it causes compression of the seal at its end faces radially outside the area of the bores so the seal is pressed into fluid-tight engagement with the conductors in use. Plugs may be provided to close off any bores present in the seal which are not required for the passage of a conductor.
Patent GB-1123592-A (GB)
Title: Improvements in or relating to titanium alloys
Inventor: CHILD HENRY CAVE
IPC: C22C14/00
Filed: 1965-05-14
Abstract: A titanium base alloy comprises:-  .Al.2 - 4% .Mo.10 - 20% .V.10 - 20% .Si.0 - 2% .Cu.0 - 5% .Co.0 - 2% .Ni.0 - 2% .B.0 - 2% the balance, apart from impurities such as C, O and N, being titanium, up to 3% of the titanium may be replaced by an equal amount of one or more of Fe, Mn, Be, Nb, Sb, W, Bi, Zr, Sn or Cr. Examples are heated at 750 DEG C. water quenched and optionally aged at 500 DEG C. or heated at 900 DEG C. aircooled and aged at 500 DEG C.