baber/WOPTO huggingface dataset:
Patent GB-1163494-A (GB)
Title: Method for Disposal of Waste Solids
Inventor: QUERIO CHARLES WILLIAM
IPC: C02F3/04
Filed: 1967-06-22
Abstract: 1,163,494. Disposing waste in wells. DOW CHEMICAL CO. 22 June, 1967, No. 28838/67. Heading E1F. [Also in Division Cl] Sewage sludges are injected into wells, usually oil wells, at a pressure less than is required to fracture the formation. Though the sludges are injected for wasted disposal purposes, hydrocarbons may be produced by the bacteria in the sludges for subsequent commercial exploitation.
Patent GB-1138244-A (GB)
Title: Semiconductive circuit arrangement
Inventor: SANDBANK CARL PETER
IPC: G11C11/39
Filed: 1966-06-28
Abstract: 1,138,244. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. 28 June, 1966, No. 28874/66. Heading H1K. A semi-conductor circuit arrangement comprises a body exhibiting Gunn or like highfield instability effect, with means for applying a varying potential difference across the body; a momentary high potential is applied during the passage of a domain which produces a lasting (1Á sec.) change in the conductivity of that portion containing the domain thus to produce a conductivity profile along the body representative of the potential variation. The increase in conductivity is thought to be due to a form of impact ionization. The passage of subsequent domains thus results in current spikes when the new domain passes through one of the high conductivity regions produced during the passage of the original domain. If the voltage is sufficiently high, the increase in conductivity can be enough to cause the creation of a new domain before the first one has reached the end of the body. Thus a series of domains traversing only part of the body are created resulting in temporary higher frequency oscillations. The embodiment comprises an epitaxial gallium arsenide layer on a gallium arsenide substrate with ohmic contacts provided by evaporated tin layers.
Patent GB-250859-A (GB)
Title: Improvements in and connected with grinding, refining and mixing machines
IPC: B02C19/10
Filed: 1925-11-17
Abstract: 250,859. McIntyre, J., and Milne & Son, Ltd., J. Nov. 17, 1925. Addition to 212,490. Stationary mixers with rotary stirrers. - In a modification of the grinding, refining, and mixing machine described in the parent Specification, the rods A carried by the grinding or mixing blade D are formed with bent or turned-over ends A<1>, one end passing over the end of the blade while the other bent end passes through a T or other slot B in the blade, which is provided with pins G', G' to receive a keyplate F placed between the blades and the bent ends of the rods where the slot is situated. The plate F is of flexible metal, and the rods A may be of round, rectangular, or other section. Or the rods may be machined so that their ends form a slot; or separate pieces may be screwed or otherwise fixed on the ends of the rods to form a slot.
Patent GB-322045-A (GB)
Title: Improvements in or relating to flexible shaft couplings
IPC: F16D3/78
Filed: 1928-10-09
Abstract: 322,045. Large, T. H. Oct. 9, 1928. Flexible couplings.- An annular or other flexible universal-joint disc for motor-vehicles &c. comprises alternate laminations a of leather, rubberized fabric, &c. and thin sheet-steel or other metal discs b, the whole being clamped by bolts c, which may be used for attachment to the shaft spiders (not shown). The clamping- plates d, d' and the discs a, b are formed with a coacting radial ridge and groove at each attachment point, as shown, in order to improve the grip and distribute the torque load, and these ridges &c. may taper towards the centre. The discs a may be spaced by washers and the discs b slightly waved or curved between the attachment points, in order to allow limited rotary yield within the safe elastic limit of the discs a.
Patent GB-244902-A (GB)
Title: Improvements in wireless distributor boards
IPC: H02G11/02
Filed: 1924-12-04
Abstract: 244,902. Bushell, W. H., and Merrett, J. Dec. 4, 1924. Connection fittings.-The distributor board of a wireless receiving set is formed as part of, or is attached to, a reel on which the spare wire connecting the board to the set is wound. The board 1 upon which are mounted the terminals 3, is secured to the flange 5 of a reel 6 and is spaced therefrom by an insulating ring 4. The wire 13 is wound on the reel 6 and its ends pass through a hole 12 in the flange for connection with the metal bases 2 of the terminal pairs. The reel is rotated by a pivoted handle 15, the knob 10 of the base 11 upon which reel spindle 8 is mounted being grasped with one hand while the reel is turned with the other.
Patent GB-282543-A (GB)
Title: Improved process for extracting platinum from ores or the like
IPC: C22B11/02
Filed: 1926-11-18
Abstract: 282,543. Mellor, J. W. Nov. 18, 1926. Drawings to Specification. Dry processes of extracting platinum.-Platinum is extracted from platiniferous ores by treating the ores with a molten metal such as lead, or lead containing a small proportion of an alkali or alkaline earth metal, which dissolves platinum. The finely divided ore may be agitated with the molten lead or blown into it by means of a gas such as producer gas or deoxidized flue gas. The gangue and dross collecting on the surface of the lead may be blown away or skimmed, and the process may be made continuous, the platinitferous lead being cupelled, the lead oxide reduced, and the lead returned to the extracting vessel, while the gaseous reduction products are returned to the holder from which the blower is fed.
Patent GB-1514923-A (GB)
Title: Acoustic surface wave filters
IPC: H03H9/02
Filed: 1974-07-02
Abstract: 1514923 Surface wave devices PLESSEY CO Ltd 12 June 1975 [2 July 1974] 29190/74 Heading H3U At least one element of a transducer, Fig. 5, or multi-strip coupler, Fig. 6, of an acoustic surface wave filter is bifurcated to provide two parallel limbs, the limbs of each element being interconnected by at least one connecting link 11. As shown, links 11 are provided at the free ends of the limbs, but they may be provided at an intermediate position thereon. The bifurcated fingers suppress triple transit signals, and links 11 prevent breaks in the fingers leading to rejection of the filters during manufacture.
Patent GB-204927-A (GB)
Title: Improvements relating to steam turbines
IPC: F01D25/30
Filed: 1922-10-26
Abstract: 204,927. Baumann, K., and Metropolitan-Vickers Electrical Co., Ltd. Oct. 26. 1922. Cooling parts.-To prevent overheating of the low-pressure end of a turbine when running under no-load or light-load conditions, one or more open pockets for receiving water are provided in the exhaust casing, the water evaporating and cooling the exhaust casing. The pockets may be formed by metal plates 5 bolted at their lower edges to the wall 2 and to the inner ribs 3. The double ribs 4 also act as water pockets, the water evaporating through holes 6. The water level in a pocket may be maintained by a float 8 controlling a valve 9 admitting feed-water to a cistern 7. Alternatively, the water may be supplied to the pockets through nozzles, and overflow into the exhaust.
Patent GB-488249-A (GB)
Title: Improvements in egg stamping devices
IPC: B41F17/30
Filed: 1937-10-26
Abstract: 488,249. Printing. ODENSE AEGFORRETNING AKTIESELSKABET, and NIELSEN, A. Oct. 26, 1937, No. 29238. [Class 100 (ii)] Printing on eggs.-An egg-stamping device comprises a frame a adapted to hold an egg-tray e, and a number of stamps f freely suspended by chains or straps d from a non - counterweighted plate c which can be lowered by means of a hand-crank b to apply the stamps to the eggs, one to each, the stamps being grouped in conformity with the eggs and bearing against them by gravity alone. The tray e is slid into position between adjustable guides g. The plate c is supported by arms z from a bracket x fixed to a shaft j to which the crank is secured, and is normally raised by a spring s bearing against an arm t fixed to the shaft. A shutter n for closing the tray aperture is lowered at the same time as the plate c. Inking-apparatus.-An ink-pad movable in guides extending beyond the frame a is slid under the stamps f and passes under an inkdistributing roller.
Patent GB-783186-A (GB)
Title: Improvements in or relating to fractionating apparatus
IPC: F25J3/04
Filed: 1954-10-11
Abstract: 783,186. Contacting liquids with gases. HASELDEN, G. G. Oct. 10, 1955 [Oct. 11, 1954], No. 29273/54. Class 55 (2). A fractionating column comprises a series of parallel vertical walls 11 and 12 (Fig. 1) separated by corrugated partition elements 13 and 14 provided with rectangular holes 16 and secured to the walls 11 and 12 at points of contact so that liquid collecting troughs are formed as shown. The tops of alternate spaces between walls 11 and 12 are closed as shown at 19 and the ends of all the spaces are sealed by sheet metal strips 20, a manifold 21 connects by ports 22 with the upper ends of the spaces which have their tops closed. The open-topped spaces are connected to a second manifold, not shown. In a modification two or more corrugated spacer elements may be disposed between each pair of vertical walls and as shown in Fig. 3 corrugated elements 30 may be arranged extending across the column. In another modification the column takes the form of a circular tube within which is arranged a series of hollow cones alternately base to base and apex to apex. In a further modification the partition elements may be tubes. Specification 759,176 is referred to.
Patent GB-682646-A (GB)
Title: Improvements in or relating to watch movements having an automatic winding device
IPC: G04B5/14
Filed: 1950-11-29
Abstract: 682,646. Watches. GRUEN WATCH MFG. CO., SOC. ANON. Nov. 29, 1950 [Dec. 2, 1949], No. 29275/50. Class 139. A watch movement having an automatic winding mechanism operated by an oscillatory weight which is pivotally mounted in the centre of a non-circular movement plate is characterized in that at least one movable member of the watch movement, situated beneath the oscillatory weight, extends outwardly beyond the circular path described by the outer edge of the oscillatory weight. The oscillatory weight 2, Figs. 1 and 2, is mounted on a shaft 4 at the centre of the movement. The shaft 4 carries a pinion 6 which through the gear train 7, 8, 9, 10, 11, 12, 13, 14 described in Specification 651,211 winds up the mainspring in the barrel 15. The peripheries of the barrel gear 19, the balance 16 and the escape wheel 22 extend beyond the path described by the edge of the weight 2.
Patent GB-741606-A (GB)
Title: Improvements in or relating to glass melting
IPC: C03B5/20
Filed: 1954-02-22
Abstract: 741,606. Glass manufacture. GELL, P. A. M. Feb. 22, 1954 [Nov. 20, 1952], No- 29287/52. Class 56 [Also in Group XI] Glass is heated by the passage therethrough of an electric current, and bubbles which are formed at the electrodes are prevented from migrating, to the working body of . the glass, by perforate barriers which do not hinder the passage of the current. The glass is withdrawn for use from the body of glass between the barriers. As shown, a barrier 16 is placed near each electrode 14, leaving spaces 17 in which the heated glass rises to discharge bubbles at the surface. The barriers may be of electrically non-conducting material, or of a conducting material, preferably molybdenum, in which case they are insulated from the electrodes, e.g., by securing them to molybdenum rods 25 embedded in the floor 11. The barrier elements may be coated with a material which has relatively high dielectric properties at the temperature involved. The barriers may be of 16 S.W.G. mesh of from one-sixteenth to one quarter of an inch openings. The batch mixture, including substances which volatilize at furnace temperatures, is charged on to the upper surface of the melt at the central region thereof, the gases liberated at the surface tending to become unified with the gas in the bubbles which are thus burst or liberated. In a modification, a glass discharge opening in the floor, midway between the electrodes, is surrounded by a perforate fence upstanding from the floor.
Patent GB-603919-A (GB)
Title: Improvements in or relating to deck chairs
IPC: A47C4/50
Filed: 1945-11-05
Abstract: 603,919. Deck chairs. HATTO, H. A., and HEDGELAND. F. G. Nov. 5, 1945, No. 29388. [Class 52(ii)] In an X-frame deck chair, preferably made of metal tubing, the strut c has bands or rings e pivoted thereto in sliding engagement with the rear legs b. Notches g or depressions may be provided on the legs b with which detents on the bands can engage or the edges of the latter may provide a friction grip as the bands tilt under load.
Patent GB-918254-A (GB)
Title: Electric circuits
IPC: G01J1/44
Filed: 1960-08-26
Abstract: 918,254. Radiation detectors. KALMUS, H. P. Aug. 26, 1960, No. 29502/60. Class 40 (3). To measure a property affecting the conductivity of a non-linear and essentially unidirectional conducting valve having spaced electrodes, such as the intensity of light incident upon a vacuum photo-cell 10, it is connected in series with an R.C. circuit (a resistor 19 in parallel with a capacitor 18) and to the series combination is applied on A.M. carrier signal. In the absence of incident radiation, and neglecting thermo-excitation current, the cell behaves as a linear impedance and no signal at the modulating frequency appears across the R.C. combination. When the cell is irradiated, however, it behaves as a diode whose conductivity varies with the incident radiation and the circuit functions as an envelope detector to produce a modulating frequency signal across the resistor 19 of an amplitude dependent upon the intensity of radiation, this signal being fed to a measuring circuit comprising a narrow band tuned amplifier 24 and a d'Arsonval type meter 25. A circuit which includes means for preventing the supply of carrier frequency signal to the tuned amplifier to obviate errors due to rectification of this by the cathode follower 22 is described, Fig. 2 (not shown). The Specification contains a discussion of the signal-to-noise ratio obtainable with such a circuit when measuring low values of light.
Patent GB-1401824-A (GB)
Title: Oxidised polysaccharide
IPC: A24B15/16
Filed: 1972-06-23
Abstract: 1401824 Tobacco substitutes GALLAHER LTD 13 June 1973 [23 June 1972] 29583/72 Heading A2C [Also in Division C3] A tobacco substitute is made by oxidising cellulose into a polyanhydroglucerrenic acid by treatment with ruthenium tetroxide. The substitute may be blended with flavouring agent, combustion-modifying substances, natural and reconstituted tobacco.
Patent GB-750444-A (GB)
Title: Improvements relating to fluid pressure braking systems for vehicles
Inventor: WHITE JOSEPH
IPC: B60T8/18
Filed: 1953-10-27
Abstract: 750,444. Fluid-pressure brakes. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd. Sept. 28, 1954 [Oct. 27, 1953], No. 29636/53. Class 103 (1). In a fluid pressure braking system of the kind in which the fluid pressure supplied, upon brake application, to the brake cylinder is automatically dependent upon the load carried by the vehicle, the supply of fluid under pressure to the brake cylinder is controlled by a relay valve having a single movable abutment which is automatically opened and closed under the control of the pneumatic pressure in the brake cylinder opposed by a pneumatic pressure dependent upon the load carried by the vehicle, whereby the maximum pressure that can be built up in the brake cylinder is dependent upon the load. In the embodiment shown applied to a tractor-trailer vehicle compressed air braking system, an auxiliary reservoir 1 is carried on the trailer and is charged from the tractor and, upon the initiation of a brake application, compressed air is supplied through automatically regulated relay emergency valve 2 to supply compressed air from the auxiliary reservoir 1 to the trailer brake cylinder 3 through a normally open relay valve 4. The relay valve 4 comprises a control chamber 8 and a supply chamber 7 controlled by a valve member 11 moved by a flexible diaphragm 5. The control chamber 8 of the relay valve 4 is in communication through pipes 13 and 14 with auxiliary reservoir 1 by way of control valve 15 which automatically limits the air pressure supplied to the control chamber 8 to a magnitude determined by the load carried by the trailer as determined by the deflection of the trailer springs. If the degree of application of the brakes is sufficiently great, pressure will build up in the brake cylinder 3 and in supply chamber 7 until its action upon the diaphragm 5 is sufficient to overcome the opposing action of the pressure in the control chamber 8 such that the valve member 11 closes upon its valve seat 12 to cut off the supply of compressed air to the brake cylinder 3 from the auxiliary reservoir 1. The relay valve 4 is preferably biased towards its open position by a spring 17 (Fig. 2) so that a predetermined limited pressure may be built up in the brake cylinder despite the failure of the load dependent supply of fluid under pressure. In order to stabilise the pressure in the relay valve control chamber 8 regardless of the flexing of the trailer springs while running, a small chamber 18 may be inserted in the communication between the control valve 15 and the relay valve control chamber 8. In a modification, two brake cylinders may be employed, one (3) controlled in the manner described and the other (19) supplied directly from the relay emergency valve 2 so that the operation of the latter brake cylinder is independent of the load on the trailer.
Patent GB-842177-A (GB)
Title: Improvements in or relating to fuel supply systems for aircraft
IPC: F02C7/22
Filed: 1957-09-20
Abstract: 842,177. Fuel supply systems. BLACKBURN GROUP Ltd., and GADD, R. C. S. Aug. 27, 1958 [Sept. 20, 1957], No. 29678/57. Class 7(3). [Also in Group XXVI] A fuel system for an aircraft driven by piston engines has the or each fuel tank pressurised and provided with at least one outlet valve, which will pass fuel but not air leading to a motor driven vane-type proportioner which increases the fuel pressure so that it reaches the engine or engines at a pressure greater than that in the tank or tanks. Compressed air is passed through a non- return valve 8 and pressure-reducing valve 7 to a conduit leading from the top of the fuel tank 1 to an atmospheric vent valve 2. The tank 1 has at its bottom fore and aft valves 3 which pass fuel but not air. Pipes lead from the valves 3 to a vane-type fuel proportioner 4 incorporating a by-pass 41 normally closed by a non-return valve 42. A similar non-return valve 43 is also provided in the main discharge duct of the fuel proportioner 4 which is driven by an hydraulic motor 10 operated by fluid from a pump driven by the supplied engine. A pipe leading from the proportioner to the engine contains a shut-off cock 9 and a branch from the pipe leads to a fuel accumulator 5, to the opposite side of the diaphragm of which compressed pressure is supplied through a pressure reducing valve 6 and a relief valve. It is stated that the pressure in the fuel tank prevents the air boiling out of the fuel and the higher pressure in the engine supply pipes prevents the evolution of dissolved air. Starting the engine will cause pressure air to be supplied to the tank 1 and hydraulic pressure to the motor 10 so that the system requires no initial setting of valves or priming.
Patent GB-248119-A (GB)
Title: Improvements in looms for weaving coir mats and the like
IPC: D03D41/00
Filed: 1924-12-11
Abstract: 248,119. Green, A. W., Green, J. R., and French, P. Dec. 11, 1924. Shedding-motions; healds.- In looms for weaving coir mats &c., and particularly in looms of the kind described in Specification 168,444, means are provided to be placed in the path of the healds or harness frames to arrest their movement while work is being performed by other parts of the machine. As shown, the heald frames A, A', through eyes in which the thrum or pile threads are passed, are each provided with a slotted extension B, B<1> which are alternately engaged by spring-actuated levers D, D' controlled by constantly-rotating cams G. Rack extensions J, J<1> on the frames mesh with double pinions M, M<1>, the smaller pinions of which are in mesh with a pinion Q so that when one frame moves outwardly the other moves inwardly. In order to disconnect the frames from their driving mechanism when they are arrested, cam-operated spring-controlled levers N, N' mounted on the shafts of the pinions M, M' carry pinions in mesh with the pinions M, M' and adapted to be engaged with or disconnected from mutilated pinions P which are geared to the continuously-rotating cams G.
Patent GB-189334-A (GB)
Title: Improvements in margin mechanism for typewriting machines
IPC: B41J29/50
Filed: 1921-11-09
Abstract: 189,334. Fairweather, W. C., (Underwood Typewriter Co.). Nov. 9, 1921. Line-locking devices ; margin stops.- In carriage-shift machines, the shift frame is provided with a stop-carrying member which is movable longitudinally by an abutment on the carriage, and is formed with a depending arm of sufficient length to engage a keyboard-locking member in all positions of the shift frame. As applied to a portable machine having a pivoted shift frame 23 supporting the carriage 20, the line-lock stop 30 is supported on a sliding bar 31 mounted on the shift frame and connected to a longitudinally movable link 35 having a depending arm 43 engaging a bell-crank 39 for obstructing the universal bar 21. The bell-crank is mounted on a vertical pivot 40. At line-end, an .abutment formed .m a lever 33 on the carriage engages a lug 32 on the line-lock stop, and moves the bar 31 and link 35, the bell-crank thereby being caused to obstruct the universal bar. To release the universal bar, a release-key 60 on the lever 33 is depressed, and springs 61, 62, thereupon return the parts to the normal position. The arm 41 of the bell-crank is supported by a notch 42 in a bracket 44. A margin stop 65 is mounted on the bar 31 and co-operates with the lever 33. The stops are provided with a finger-piece 66 formed on a C-shaped piece 67 which is guided vertically by ears 71. and is formed with a tooth 68 engaging teeth or. the bar 31, a spring 70 maintaining engagement of the teeth. The teeth are disengaged by depressing the finger-piece. The stops can be moved towards each other without depressing the finger-pieces. Alarms.-A bell 48 is mounted on the linelock stop 30 and is operated bv a hammer 50 mounted on a wire-spring which is secured to the lever 33. An inclined projection 52 on the linelock stop raises the lever in opposition to a spring 47, and the lever then drops and operates the hammer. To permit return of the carriage, the projection 52 is pivoted and held in normal position by a spring 54,
Patent GB-1325629-A (GB)
Title: Signal processor
IPC: G01S13/56
Filed: 1971-06-25
Abstract: 1325629 Radar and sonar PANAMETRICS Inc 25 June 1971 [2 July 1970] 29855/71 Heading H4D An apparatus includes means for generating, from echo signals due to a radiated signal comprising two adjacent frequency components, respective Doppler signals, means for crosscombining the two Doppler signals into a third signal and means for integrating the said third signal. Source 11 radiates the two frequency signal via sonar or radar transducer 15 and also supplies the two signals to multiplier 31 and filter 35 extracts the difference frequency signal. The Doppler shifted echoes are heterodyned with the other transmitted carrier and then with the difference signal from filter 35. The resulting Doppler frequency signals are then each differentiated and multiplied by the other Doppler signal in multipliers 73, 75. The multiplier outputs are then integrated to give a substantially clutter free range dependent signal. To provide unambiguous results a single range gate is used. The processing may be performed digitally.