baber/WOPTO huggingface dataset:
Patent GB-289589-A (GB)
Title: A stall detector and alarm for use on aeroplanes
IPC: B64D45/00
Filed: 1927-10-29
Abstract: 289,589. Barros, J. Oct. 29, 1927. Angle-measuring instruments. - Relates to instruments for warning the pilot of an aircraft that the flying speed is diminishing or the angle of incidence increasing to an extent likely to produce stalling, of the kind in which a pivoted vane which is deflected by the air pressure operates to close an electrical circuit. According to the invention the whole of the moving parts are contained in a liner which can be readily removed from its containing casing which is secured to the aircraft. The casing 1, provided at its end 3 with means for securing it adjustably to a strut &c., is formed with a recess in which is inserted the liner 5 which is provided in its long face with an arcuate slot 6 through which passes a bolt 8 which can be secured in any position in the slot by a nut 12. Mounted between insulating washers 9, 11 on the bolt 8 is a cylinder 10 to which is secured one end of a spring 13 having a projecting tongue with which contact is adapted to be made at the required moment by a cam 14 on a disc 15. The disc is carried by a spindle 16 freely mounted in a bracket 17 carried by the housing 5, and carries a depending rod 19 on which is mounted the vane 20 which is subjected to the air pressure; a spring 21 resists the movement of the vane. The housing 5 is held within the casing 1 by a detachable cover plate 4. Contact of the cam 14 with the spring 13 is adapted to complete an electric circuit to operate a warning device which may comprise two buzzers &c. within the pilot's helmet, or, where telephones for wireless reception are carried, a buzzer &c. may be connected to the telephones and the wireless set as indicated in Fig. 12, where one telephone lead 25 is connected to the terminal 33 on the set and the other lead 26 is connected to the armature 27 on the buzzer and the adjustment-pin arm 29 on the buzzer is connected to the telephone terminal 32 on the set. The primary 34 of the induction coil 30 is connected to the lead 25 and the secondary 35 to the buzzer coils 28. For giving an alarm when the angle of incidence of the aircraft becomes dangerously large a larger cowling 4<1>, Fig. 13, may be fitted to the cover plate 4 so that the vane 20 is shielded from the air stream until a predetermined angle of incidence is reached.
Patent GB-1165605-A (GB)
Title: Anti-Roll Stabilizing Tanks for Ships.
IPC: B63B39/03
Filed: 1967-02-01
Abstract: 1,165,605. Ship stabilizers. JOHN J. McMULLEN ASSOCIATES Inc. 1 Feb., 1967 [7 Feb., 1966], No. 4831/67. Heading B7M. A ship stabilizer for minimizing rolling comprises an elongate tank 10, Fig. 1, which is orientated athwartships and contains a liquid in a free-surface condition, the motion of said liquid in response to rolling being retarded by a vertical plate 11 that is attached to the bottom of the tank and placed obliquely relative to the longitudinal sides of the tank so as to define therewith two convergent passages causing the liquid to flow around said plate, as indicated by arrows. The uppermost edge of the plate may be either adjacent the top of the tank, Fig. 2a (not shown), or below the static freesurface level of the liquid, Fig. 2b (not shown), so that during rolling of the ship some of the liquid flows across said edge. Alternatively, the edge aforesaid is inclined upwardly from each end of the plate, Fig. 2c (not shown), said free surface level being coincident with the outermost ends of said edge. In another embodiment, Fig. 4b, a non- return valve 40, or 42, is lodged between each end of the plate and the side wall situated at the greatest distance therefrom, each valve being constituted by a plurality of horizontal slats pivoted so that they permit flow of liquid in one direction only. The valves may be replaced by electrically-driven propellers (50), Fig. 7 (not shown), which operate either continuously at a constant speed to encourage flow of liquid around the plate in response to rolling of the ship or under the control of a gyroscope (30) that is sensitive to rolling motion so that the stabilizer is then of the activated-tank type. The propellers can be stopped when required by opening a switch (34). In a further embodiment, Fig. 5, holes 16 are provided in the plate 11 to permit some of the liquid to by-pass the ends of the plate, flow through these holes being regulated by pivotal shutters 15 that are operated by mechanism 13, 14, which is controlled by rollsensing means (not shown). Alternatively a plurality of holes (21), Fig. 6 (not shown), in said plate are controlled by horizontally-sliding shutters (17).  The tank may have a profile in a horizontal cross-section which is that either a parallelogram, Fig. 3a (not shown), or a rectangle with rounded corners, Fig. 3b (not shown), the plate 11 being correspondingly arcuate at each of its ends with curved guide plates (11<SP>1</SP>) situated adjacent said ends to promote the flow of liquid around the plate. The plate 11 may be pivotally mounted on a vertical shaft, or axle (12), Fig. 3c (not shown), so that its obliquity can be either adjusted to obtain optimum stabilization or varied under the control of a gyroscope (30) sensitive to rolling of the ship.
Patent GB-539588-A (GB)
Title: Improvements in wire drawing machines
IPC: B21C1/12
Filed: 1940-03-15
Abstract: 539,588. Drawing wire. LLOYD, H. J., and RICHARDS, S. H. March 15, 1940, No. 4877. [Class 83 (iv)] In a wire drawing machine having the speed of a block 3 controlled by a floating pulley in contact with a loop of wire between the block and succeeding die 5, the pulley operates an infinitely variable control gear of an electric motor 7 driving said block. The wire A to be drawn is pulled through a die 2 by the block 3 driven by the motor 7, the speed of which is regulated by a known device operated by a lever 11, which is pivoted at 12, urged by adjustable springs 19 against a stop 18, and moved in the opposite direction if the wire at A<SP>1</SP> is drawn through the die 5 by a block 6 more rapidly than it leaves the die 2, by reason of its passage over a pulley 4 mounted on said lever. The block 6 is driven by a motor 8 the speed of which is regulated by a hand-operated device.
Patent GB-474195-A (GB)
Title: Improvements in waste fittings for baths and the like
IPC: E03C1/23
Filed: 1937-02-18
Abstract: 474,195. Manually-operated valves. KLEIN, F. Feb. 18, 1937, No. 4902. [Class 135] In a waste valve fitting for baths, lavatory basins, sinks, &c. in which the valve member 1 is opened by the abutment of a flexible wire or cable 7 guided in a sheath 8 and connected to an operating handle 13, the valve member has a hollow stem 4 with guide wings 2, which stem accommodates the end of the wire and of the sheath so as to position the former centrally and prevent water entering the latter. The sheath 8 comprises a coiled wire or band and is supported in the outlet pipe 3 by a bridge piece 6 whilst the end adjacent the handle 13 is clamped by a set-screw 16 in a sleeve 15 depending from a guide 14 for a plunger 12 carrying the handle 13. The sheath, which may have a protecting jacket 5 fitted with end caps 10, passes obliquely through the outlet pipe 3 which is fitted with a gland cover 17. The end of the wire 7 within the valve stem 4 carries a ball 11. In modifications, the lower ends of the sheath and the wire are arranged in a curved tube passing through the outlet tube or into the overflow pipe leading thereto. The curved tube is closed by a cap which is also screwed on to the sheath. The operating handle may be formed as a bent lever which is partly encased.
Patent GB-1145598-A (GB)
Title: A gastight welded finned tube wall comprising a sheet metal skin
IPC: B23K11/00
Filed: 1967-02-01
Abstract: 1,145,598. Tube walls. L. & C. STEINMULLER G.m.b.H. 1 Feb., 1967 [2 March, 1966], No. 4938/67. Heading F4B. A gas-tight finned tube wall is formed from tubes 1 with longitudinal fins 2, welded at the end of one of the fins to sheet metal strips 4 extending between the tubes. The tubes may be provided with studs 5 on one side and be completely or partially embedded in a refractory and/or heat insulating material 6. V-section weld seams, weld beads, underfaced powder welds or carbon dioxide welding may be used. In a modification (Fig. 1), the fins of the tubes may be point, plug or roll welded to a continuous plate.
Patent GB-124276-A (GB)
Title: Improvements in or relating to the Vulcanisation of Rubber and similar Materials.
IPC: C08K5/00
Filed: 1918-03-20
Abstract: 124,276. Dunlop Rubber Co., and Twiss, D. F. March 20, 1918. Vulcanizing materials and compositions. - Potassium or sodium dissolved in a primary or secondary aromatic amine is used as an accelerator of vulcanization. The particular accelerators described are sodium or potassium in aniline, or potassium in diphenylamine or toluidine.
Patent GB-552839-A (GB)
Title: Improved contact controlling mechanism for use on automatic electric circuit breakers or switches
IPC: H01H77/10
Filed: 1942-04-15
Abstract: 552,839. Contact-members for switches. LANDIS & GYR SOC. ANON. April 15, 1942, No. 4944. Convention date, May 7, 1941. [Class 38 (v)l A closing force P applied in direction 9 to the pivot 8 of a toggle 7 causes the other toggle-pivot 10 to follow the left side of a fixed slot 11 until, when contact 2 meets contact 1, the pin 10 engages surface 12 and drives contact arm 3 bodily to the right, as permitted by the pivot slot 5, so causing 2 to rub on 1. When the toggle is broken, pin 10 follows the right-hand side of slot 11 so that contact 2 separates vertically from contact 1. Contact 2 may be a roller, and the pin and slot may be transposed. The pin 10 may alternatively be pivoted to a bracket on a spring- urged contact-member adapted to form two series breaks, Fig. 2 (not shown). The Specification as open to inspection under Sect. 91 discloses also an arrangement in which contact 1 of Fig. 1 is mounted on an arm retained by a separate toggle which is broken to open circuit, the contact 2 comprising a rounded contact mounted on a bowed spring arm which is closed by straightening a toggle which, in moving over-centre, 'causes the arm to be more bowed and so rub contact 2 along contact 1, Fig. 3 (Can,cetled), (not shown). This subject-matter does not appear in the Specification as accepted.
Patent GB-595831-A (GB)
Title: Improvements relating to combustion apparatus
IPC: F23R3/00
Filed: 1944-03-16
Abstract: 595,831. Generating combustion products under pressure. POWER JETS, Ltd., and NATHAN, M. L. March 16, 1944, No. 4967. [Class 51 (i)] [Also in Group XXVI] In a jet-propulsion plant which includes a gas turbine 1, 2, 3, Fig. 1, and a jet augmenter 6, 7, fuel is burnt in the airstream of the jet-augmenter in combustion chambers 9. These chambers are generally cylindrical and are arranged in the annular duct 8 with their discharge ends formed sector-wise to make a complete annular discharge. In each chamber, Fig. 2, -some air is admitted through ports in the end wall and is turned in passages 14 to swirl tangentially around the burner 20. Air from the stream surrounding the chamber is discharged in the chamber in an up-stream direction from apertures X<1> in transverse pipes 22. Further air from the surrounding stream is admitted through inwardly projecting apertures 23 and plain apertures 13. Adjacent chambers communicate through pipe connections 31 and one or more chambers have sparking plugs.
Patent GB-397536-A (GB)
Title: Improvements in or relating to electrical transformers, particularly for use as intervalve transformers in radio apparatus
IPC: H01F19/02
Filed: 1932-02-19
Abstract: 397,536. Transformers; binding-posts. PYE RADIO, Ltd., Radio Works, and DALGLEISH, J. W., 27, Haig Road, and ROOT, E..V., 176, Milton Road, all in Cambridge. Feb. 19, 1932, No. 4973. [Class 38 (ii).] In transformers, particularlv those used as intervalve couplings in wireless receivers, the end cheeks 6 of the winding spools have mounted thereon sheet metal members 8 provided with terminal tags 8a and projections 8b, 8c adapted to be bent over and passed through holes or slots in the end cheeks for direct connection to the wire of the winding. The hub 5 of the spool has a groove 9 of dovetail section formed therein to accommodate the projection 8b for connection to the inner end of the winding, and the periphery of the cheek of the spool is slotted at 10 to accommodate the projection 8c for connection to the outer end of the winding.
Patent GB-141162-A (GB)
Title: Improvements in variable gears for motor vehicles and the like
IPC: B62M25/00
Filed: 1919-02-28
Abstract: 141,162. Rudge-Whitworth, Ltd., and BIair, W. Feb. 28, 1918. variable-speed toothed gearing.-In threespeed gearing for motor-cycles &c., there are three pairs of toothed wheels always in mesh mounted in two shafts b, c, one wheel b<2>, i being fixed on each shaft and the others loose thereon. Changes of speed are effected by sliding the middle pair I, m together, this pair being provided with grooved to engage splines on the shafts and with dogs to engage similar dogs on the other loose pinions e, k. The sliding pair are moved by a fork q operated by a hand-lever through a spring arm or link and a shaft s. The engine-driven chain-wheel b<1> is fixed on the shaft b, and the road wheel is driven by a chain from a sprocket h fixed to the toothed wheel e.
Patent GB-142955-A (GB)
Title: Improvements in or relating to fire bricks for furnaces, coke ovens and the like
IPC: C04B35/14
Filed: 1919-02-28
Abstract: 142,955. Keillar, T. W. Feb. 28, 1919. Non-conducting coverings.-Fire-clay or silica fire-bricks are rendered less heat conducting by the provision of a cavity loosely packed with kieselguhr, which may be inserted through a hole subsequently sealed by a fire-clay plug; alternatively, the material may be introduced, with or without an envelope, into an open cavity and enclosed by a cover of fire-clay, or the brick may be moulded around an envelope containing the kieselguhr.
Patent GB-511500-A (GB)
Title: Improvements in the combustion of coal
IPC: F23K3/08
Filed: 1938-02-18
Abstract: 511,500. Firing boiler furnaces. MORGAN, J. S. Feb. 18, 1938, No. 5045. Drawings to Specification. [Class 51 (i)] Coal which may be in the form of wet slurry from washeries is carbonized by admixture with incandescent coke, e.g., by the method described in Specification 467,493, and the coke produced is fed while still hot on to the chain grate of a boiler furnace where it is burnt. Preferably the coke is transferred from the coking plant to the boiler by a pneumatic conveyer operated by the blow gases from the coking process, and the conveyer may discharge directly into the furnace, or to a cyclone separator ; and in the latter case the conveying gases may be recirculated.
Patent GB-361743-A (GB)
Title: Improvements in or relating to stoppers for bottles, drums, tanks and the like
IPC: B65D47/30
Filed: 1931-02-17
Abstract: 361,743. Stoppers for bottles. WILHELM, T., 25, Ausstellungsstrasse, Zurich, Switzerland. Feb. 17, 1931, No. 5057. [Class 125 (iii).] Relates to stoppers for bottles &c. of the pickle-jar type, i.e. which are held in the neck of the bottle by a compressed and radially expanded rubber ring 4 between a fixed plate 2 and a slidable plate 1. The stopper is released when the flat side of the cam 7 engages the plate 1. According to the invention the cam operating lever 6 opens and closes the valve 5. A stop pin 12 prevents over-running the concentric part of the cam in operating the cock. A vent hole 10 is provided in the cock. The distance between the plates 1 and 2 may be adjusted by screwing the plate 2 up or down.
Patent GB-1412871-A (GB)
Title: Magnetic detector
IPC: G01R33/04
Filed: 1973-02-01
Abstract: 1412871 Proximity detectors; magnetometers; switching circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 1 Feb 1973 [4 Feb 1972] 5094/73 Heading G1N [Also in Divisions G4 and H3]  The passage of e.g. vehicles is detected by a fluxgate magnetometer of the orthogonal field type, provided with automatic nulling of the "static" ambient magnetic field by feedback through a long-time constant circuit to the detector coil. The output pulse from the magnetometer due to the passage of a vehicle is applied to a switching type pulse shaper circuit Fig. 3, to produce a single constant amplitude pulse. MAGNETOMETER. Fig. 1 has a torroidal gating winding 6 and solenoid detector winding 7 around a tubular core 5. The signal passes through a 2f filter 10 to a synchronous detector 11 and to output terminals 3, 4. Automatic nulling of the static field is provided by feedback through a symmetrical amplifier 29, 30, with long-time constant RC networks 31 .. 34. The feedback is applied through 2f filters 39, 40 to the detector coil. This will compensate for local variations in the earths field strength and e.g. temporarily parked vehicles. PULSE SHAPER SWITCHING CIRCUIT. Figs. 3 and 4. If a signal such as V (graph a) is applied to a push-pull amplifier 42, 43 output signals VA, VB (graphs b, c) will be applied to differential amplifiers 50, 51 which will provide output pulses (graphs d, e) while the output exceeds a reference voltage VR. The resultant output when these signals are combined is a series of pulses (graph f). These spaces are filled in to produce continuous pulse by phase shifting the signals VA, VB through 90 degrees by networks 64, 65; 68, 69, to produce signals VC, VD. These are similarly applied to differential amplifiers 58, 59, whose outputs are added to the first pair of differential amplifiers 50, 51. (The corresponding graphs are illustrated in Fig.5 (not shown)). This enables a smaller smoothing capacitor 55 to be used in the output stage giving a more accurate switching time.
Patent GB-119618-A (GB)
Title: Improvements in or relating to Cleaning Metals.
Inventor: GRAVELL JAMES HARVEY
IPC: C23C22/00
Filed: 1918-03-22
Abstract: 119,618. Gravell, J. H. March 22, 1918. Cleansing-compositions. - A compcsition for cleaning iron and steel for painting consists of phosphoric acid, alcohol, and calcium phosphate. When a freely-flowing composition is required, water is added. The composition is especially designed for cleaning metals which have been treated with strong acids. The calcium phosphate may be replaced by other phosphates such as those of magnesium or barium.
Patent GB-162131-A (GB)
Title: Improvements in meat safes
IPC: A47B71/00
Filed: 1920-02-20
Abstract: 162,131. Williams, R. Feb. 20, 1920. Meat safes.-A meat safe consists of framed perforated slates which are hinged together to form the sides and which may be folded into two portions for transport &c. Fig. 1 shows three framed slates comprising one portion which co-operates with a similar portion to form a complete safe, the portions being mutually secured by screws at a. The bottom is provided with four wooden knob-legs, screwed to the slate-frame, and in large safes a slate shelf is fitted.
Patent GB-536634-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H29/24
Filed: 1940-03-20
Abstract: 536,634. Conducting-liquid electric switches. BRITISH THOMSON-HOUSTON CO., Ltd. March 20, 1940, No. 5221. Convention date, March 21, 1939. [Class 38 (v)] In an electric switch of the kind described in Specification 454,342, having an envelope comprising a pair of.cup-shaped terminals 10, 11 with their open ends sealed to opposite sides of an insulating barrier 12 having in it an opening 15 which by rotation of the switch is brought below or above the surface of conducting liquid 14 contained in the cups to make or break the contact, a baffle 27 is positioned at each side of the barrier so as to raise the conducting liquid above its normal level when the switch is rotated, the liquid passing through apertures in the baffles so as to return after a predetermined time to its normal level, whereby one of the switching operations is delayed. In the form shown, baffles 27 secured to the cups 10, 11 and engaging in grooves 26 in the faces of the barrier are provided, each having a small aperture 29 near one end and a notch 30 of larger area at the other. When the switch is turned from the open circuit position shown in Fig. 4, to the closed circuit position shown in Fig. 5 the conducting fluid: is moved by the baffles 27 and subsequently escapes through the apertures 29 to submerge the opening 15 in the barrier and complete the circuit with a delay action. On the return movement of the switch the fluid flows freely through the slots 30, the circuit thus being opened without delay. By rotating the switch through 180 degrees the delay action is rendered inoperative. The baffles 27 may alternately be arranged to cause a delay action in breaking the circuit, instead of when making it. A switch embodying two of these switch units, and of a construction similar to that described in Specification 466,258, is illustrated.
Patent GB-686670-A (GB)
Title: Process for making ultramarine
Inventor: GESSLER ALBERT EDWARD FRIEDRIC
IPC: C09C1/32
Filed: 1949-02-25
Abstract: Ultramarine is prepared by a modification of the process of Specification 686,669 in which the organic salt of an alkali or alkaline earth metal is replaced by an inorganic salt thereof and a reducing agent.  Specified inorganic salts are sodium carbonate or an alkali sulphide or a compound that forms an alkali sulphide under the reaction conditions, while reducing agents specified are pitch and rosin.
Patent GB-1146266-A (GB)
Title: Electronic relay circuit
IPC: H03K5/01
Filed: 1968-02-01
Abstract: 1,146,266. Relay circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 1 Feb., 1968 [4 Feb., 1967], No. 5252/68. Heading H3T. An electronic relay circuit comprises a thyristor whose main current path is in series with a resonant circuit between a power supply and a load, the transistor being turned on by pulses applied to its base-emitter junction through a transformer having a rectangular core characteristic and being turned off by the reversal of current in the resonant circuit, means being provided to magnetize the core in a positive or negative sense. In Fig. 1 telegraph signals are applied to a winding W1 on a core K having a rectangular hysteresis characteristic, and pulses are applied from a generator G to a further winding W2 on the same core, these pulses being alternately positive and negative, short in duration compared with a signalling element and having a sloping trailing edge (Fig. 2, not shown). By means of windings W3 and W4 on the same core K, these pulses are applied between the gate and cathode of thyristors T1 and T2. The leading edges of these pulses are biased by the magnetization of the core produced by the telegraph signals in winding W1, so that only one polarity of pulse is effective to turn on one of the thyristors depending on whether a mark or a space is being received. The trailing edges of the pulses are ineffective to turn on the opposite thyristor since their slope is gradual. When a thyristor conducts, current flows into the load Z from source B or B2, the load current being smoothed by capacitor C3. Tuned circuit C1L1 or C2L2 is also shock-excited and the second half-cycle of this cuts off the thyristor and, through winding W3 or W4, restores the magnetization of the core ready for the next pulse from the generator G. Diodes D1 and D2 have a quicker cut-off than the thyristors and prevent charge-storage in the latter from prolonging the current.