baber/WOPTO huggingface dataset:
Patent GB-191929-A (GB)
Title: Improvements in and relating to electromagnetic wave receiving and amplifying systems
IPC: H04B1/22
Filed: 1921-12-13
Abstract: 191,929. Chambers, F. J. Dec. 13, 1921. Thermionic relays.-In a thermionic amplifier the anode circuit is made oscillatory for even the lowest audible frequency and comprises an inductance I<1>, and two condensers C<1>, c<1> all in series with the anode battery, the condensers shunting the valve as shown. One condenser is usually larger than the other, the output being across the smaller. By varying the values of the constants, the amount of the " transient effects " that is effects due to the tendency of an oscillation to persist, is controllable. Where the system is to amplify selectively particular frequencies the anode circuit is given a high time-constant by making resistances R<1>, R<2> small and by providing grid potentiometers or high-resistance shunts r', r<2>, but for amplifying speech the timeconstant is made small. The Specification discusses at length the effect of altering the various constants on the operation of the device. According to the Provisional Specification, the anode inductance may be replaced by a resistance.
Patent GB-1073748-A (GB)
Title: Improvements relating to semiconductor elements
IPC: H01L23/482
Filed: 1964-08-17
Abstract: 1,073,748. Semi-conductor devices. COMPAGNIE GENERALS D'ELECTRICITE. Aug. 17, 1964 [Aug. 20, 1963; Dec. 24, 1963] No. 33605/64. Heading H1K. One region 3 of a semi-conductor body containing a PN junction between regions 3 and 4 is soldered under pressure to a metal plate 13a by means of an alloy layer 14a, the shapes of the components being such that the mechanical stresses set up in the region 3 cause the equipotential surfaces 15, when a potential difference is applied across the junction between the plate 13a and another electrode 1, to be closer together in the interior of the region 3 near the plate 13a (as shown at 16) than at the surface of the region near the edges of the junction (as shown at 17). The object is to allow a non-destructive leakage current to flow through the junction under reverse overload conditions, the reverse resistance decreasing suddenly at a threshold voltage. The device may be a diode rectifier or may form part of a larger device, such as a transistor.
Patent GB-1133790-A (GB)
Title: Package for cigarettes and the like
IPC: B65D85/10
Filed: 1966-07-26
Abstract: 1,133,790. Cigarette-packages. D. K. GILLHAM. 26 July, 1966, No. 33637/66. Headings B8C and B8P. A cigarette pack 10 is formed with integral matches 14 by folding a soft paper sheet 11 to form a container open at one end; securing a strip of cardboard 15, carrying matches 14, to the inside surface of the rear wall 11b of the container; placing the cigarettes, previously wrapped in a sheet of aluminium foil 12, in the container; folding down the strip 15 so that the portion thereof which carries the matches, and on its other side a match striking surface (16), Fig. 3 (not shown), is disposed between the front wall 11a of the container and the wrapped cigarettes; and wrapping the whole in a plastics sheet 17 having a tearstrip (17a) (Fig. 1). The portion of strip 15 which overlies the container end is formed with a plurality of score lines c-f to facilitate arching of this portion (Fig. 6). The cardboard strip 15 may alternatively, or additionally, be secured to the aluminium foil sheet 12.
Patent GB-639171-A (GB)
Title: Improvements in or relating to locks
IPC: E05B27/00
Filed: 1947-12-19
Abstract: 639,171. Barrel locks. MANTSAS, J. E. Dec. 19, 1947, No. 33655. Convention date, Oct. 22, 1941. [Class 44] The revolving cylinder of a barrel lock is provided with a plug 8 mounted transversely and adapted to co-operate with a conical recess 9 in the wall of the lock casing 1 so that as the key is turned from the closing position, the plug is displaced to engage in a conical recess 10 in the side of the key to prevent the key being withdrawn. The bottoms of the notches 11 in the key are formed flat and parallel to the axis of the key so that any small withdrawing movement permitted by the plug 8 does not cause the locking pins 3 to be forced against the lock casing with consequent damage.
Patent GB-313115-A (GB)
Title: The production of motor fuels
IPC: H01B3/20
Filed: 1928-11-17
Abstract: 313,115. Schanzer, S., (trading as Wernicke & Beyer). June 7. 1928. [Convention date]. No Patent granted (Sealing fee not paid). Addition to 301.076. Motor spirit contains 10 grams per kg. of a 2-5 per cent solution of hydroquinone in mineral oil of B.P. 170-200‹ C. The hydroquinone may be dissolved in benzole e.g. 2 grams in 15 grams, before solution in the mineral oil. The Specification as open to inspection under Sect. 91 (3) (a) describes a motor spirit containing a solution of hydroquinone in mineral oil and states that if the mineral oil boils at over 200‹ C. the hydroquinone is first dissolved in alcohol, benzole, a mixture thereof, or other solvent, and then added thereto. In an example, to 1 kilogram of petrol there are added 10 grams of hydroquinone dissolved in a mixture of 75 grams of benzole, 50 grams of alcohol, and 365 grams of mineral oil of B.P. 241‹ C. and 0.931 S.G. This subject-matter does not appear in the Specification as accepted.
Patent GB-1086044-A (GB)
Title: Kites
IPC: A63H27/08
Filed: 1965-08-06
Abstract: 1,086,044. Kites. PARKER BROTHERS Inc. Aug. 6, 1965 [April 1. 1965], No. 33742/65. Heading B7W. A kite has a lifting surface 5, of greater span than chord, which is convex as viewed from below, and has stabilizer surfaces 17 inclined upwardly and forwardly at a greater slope than the adjacent parts of the surface 5. The surface, which in Fig. 1 is sheet polyethylene, is attached by tape 6 to string 4 extending between the ends of longitudinal and transverse frame members 1, 2 respectively both bowed with their ends raised. The member 1 extends sufficiently far ahead of the leading edge 15 of the surface to ensure that the centre of gravity is ahead of the mid-chord position. A tail surface 11 extends upwardly and rearwardly from the trailing edge 9. The concavity of the surface may be varied for different wind conditions by altering the length of the string by an adjuster 13 (Fig. 7, not shown). In other embodiments the tail is replaced by trailing edge flaps 22 (Figs. 12 and 13, not shown), the transverse frame member is in two parts swept back from their attachment to the longitudinal frame member (Figs. 14 and 15, not shown), and the leading edge is attached to a second transverse member (Figs. 16 and 17, not shown). Alternatively the kite may be of moulded plastics in the shape of an aeroplane (Figs. 18 and 19, not shown).
Patent GB-340696-A (GB)
Title: Improvements in or relating to electrical switches
IPC: H01H19/58
Filed: 1929-11-06
Abstract: 340,696. Couplings. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London.-(Assignees of Schramm, W. H. ; 712, Ivy Street, Pittsburg, U.S.A.) Nov. 6, 1929, No. 33829. Convention date, Nov. 6, 1928. [Class 38 (i).] A device for connecting testing instruments in a circuit comprises a switch for opening the circuit and a coupling for completing the circuit through the instrument. The switch contacts 22, 24 are normally bridged by blades 35, 36 mounted in a rotary block 32. Other contacts 23, 25 connected in parallel to the contacts 22, 24 receive blades 51 .. 54 on a plug 42 through which conductors 44 .. 47 that can be connected together in different ways and serve for the connection of instrument leads 55, 56. The blades 52, 54 are longer than the blades 51, 53 so that the plug can be inserted in one position only in the keyhole slot 61 between lugs 69, 71 and can then be turned only in one direction to engage the blades 51 .. 54 between the contacts 23, 25. When the plug is inserted the blades 53, 54 enter a groove 67 in the block 32 which is turned when the plug is turned, but the groove is shaped to provide lost motion sufficient to allow the plug contacts to engage before the switch contacts are opened.
Patent GB-1021057-A (GB)
Title: Improvements in the detection of microwave energy
IPC: G01R21/00
Filed: 1962-09-04
Abstract: 1,021,057. Cold-cathode tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Sept. 4, 1962 [Sept. 6, 1961], No. 33833/62. Heading H1D. A method of detecting microwave energy comprises applying the microwave energy to the space between the anode and the filamentary cathode of a cold-cathode glow discharge tube, and adjusting the discharge current of the tube so that the frequency of the microwave energy corresponds to the oscillation frequency of the electrons in the portion of the discharge at the boundary between the cathode glow and the Crookes dark space, so that microwave energy is absorbed in the part of the discharge, and causes a decrease in the burning voltage of the tube. In an embodiment, the cathode is 0À5 mm. molybdenum wire, the cylindrical anode has a diameter of 8 mm., and the tube is filled with nitrogen at 3 cm. Hg.
Patent GB-352361-A (GB)
IPC: D03D49/36
Filed: 1930-11-10
Abstract: 352,361. Loom pickers. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- -(Assignees of Allgemeine Elektricitõts-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Nov. 10, 1930, No. 33835. Convention date, Nov. 8, 1929. [Class 142 (iii).] Pickers are made of superposed layers or pieces of leather and woven material treated with raw rubber adherently united by an artificial resin capable of hardening, such as phenol formaldehyde condensation product. The pickers may also contain textile fabrics or fibrous materials and wadding- like felted fibres, and be of the shape shown in Specification 352,522.
Patent GB-1402134-A (GB)
Title: Removal of acid catalysts from reaction products
IPC: C08C19/00
Filed: 1972-07-19
Abstract: 1402134 Removal of acid catalysts from polymers HOECHST AG 19 July 1972 [19 July 1971] 33835/72 Addition to 1224785 Headings C3P and C3R Sulphuric acid or acid-reacting derivatives thereof are removed from mixtures by heating with either a polydiolefin which is either a diolefin copolymer or a homopolymer of butadiene or a C 5-8  cyclicdiolefin or is a reaction product of any of these polymers, or a mixture of any such polydiolefin with an unsaturated terpene compound, and expelling the volatile products from the mixture. In Example 3, a phenol/formaldehyde resin produced in the presence of phenol sulphonic acid catalyst is freed of the catalyst by heating with a polybutadiene oil. In the remaining examples, sulphuric acid or phenol sulphonic acid which has been used to catalyse the reaction of phenol with a variety of diene polymers (listed below), is freed from the reaction products by heating to a temperature above that at which the phenol/polymer reaction has been effected, thus being reduced by the polydiolefin present. The diene polymers, some of which are liquid, in examples are as follows: (1, 2, 4 or 8) polybutadiene, Example 2 including colophony as an additional reactant; (5) butadiene/isoprene copolymer; (6) isoprene/styrene random or block copolymer; (7) butadiene/styrene copolymer; (9) a copolymer of styrene with a hydrocarbon fraction containing isoprene and dicyclopentadiene; (10) butadiene/vinyl toluene copolymer; (11) butadiene /styrene/α-methyl styrene copolymer; and (12) polycyclopentadiene or polycyclooctadiene. The product of Example 8 is said to contain cyclized units as well as bound phenol.
Patent GB-940046-A (GB)
Title: Improvements relating to commutators for dynamo-electric machines
Inventor: WATKIN KENNETH
IPC: H01R39/04
Filed: 1961-09-22
Abstract: 940,046. Making commutators. FERRANTI Ltd. Sept. 5, 1962 [Sept. 22, 1961], No. 33942/61. Heading B3A. [Also in Division H2] A commutator comprises a number of spacedapart metal segments 1 sealed to ceramic end discs 2 and is cooled by gas passing through apertures 6 in the end discs and out through the spaces between segments. The commutator is constructed by machining a slab of copper to form a rack having the required number of segments joined by a bridge of metal, Fig. 3. After bending the rack round a mandrel, the ceramic end discs are attached by metallizing the faces and brazing them to the rack after which the segments are separated by removing the metal bridge; mounting ferrules 5 are also brazed in place. To increase the flow of cooling gas the spaces between segments may be inclined to the radial direction or curved to act as an impeller, Fig. 6 (not shown), also the end discs may be provided with air intake scoops.
Patent GB-838870-A (GB)
Title: Improvements in or relating to apparatus for aggregating fine ores by roasting and sintering electrically
IPC: F27B21/06
Filed: 1958-10-24
Abstract: 838,870. Electric furnaces. KLOCKNER-HUTTENWERK HASPE A.G. Oct. 24, 1958 [June 9, 1958], No. 34025/58. Class 39(3) Fine ores delivered by rollers 4, 5 from containers 2 and 3 with an intermediate layer from 6 of good conducting material, e.g. iron chips is delivered into troughs 1 and are aggregated by roasting and sintered by electrodes 9 and 10 as the material is dragged past the electrodes, by the chain of troughs. The electrodes may be wedge shaped to increase the sliding contact. The conveyer units 1 are coated with refractory material.
Patent GB-489148-A (GB)
Title: Improvements in or relating to sash and store front constructions
IPC: E06B1/38
Filed: 1937-12-09
Abstract: 489,148. Glazing shop fronts. LIBBEY-OWENS-FORD GLASS CO. Dec. 9, 1937, No. 34092. Convention date, May 8. [Class 20 (iii)] The glass 26 of a shop or store front is secured between movable and fixed frame members, 21, 19, respectively, by a blade spring 29 secured to a rigid member 36 which is adjustably positioned by a ratchet 37, stop 38, and screw 39. The spring has its ends reversely bent to fit in undercut recesses 33 in the movable member and in the member 36.
Patent GB-738961-A (GB)
Title: Improvements in or relating to lift trucks
Inventor: QUAYLE GEORGE FRANCIS
IPC: B62B3/06
Filed: 1953-12-08
Abstract: 738,961. Lift trucks. YALE & TOWNE MANUFACTURING CO. Dec. 8, 1953, No. 34102/53. Class 78 (3). In a lift truck the platform 10 is raised and lowered by a roller 33 secured to a pair of interconnected levers 27 which are pivoted to the truck frame beneath the battery containing standard 11 at 30, and are operated by a pair of vertical hydraulic thrustors 34 located at the sides of a compartment 14 in the standard in such a manner that they straddle the steering wheel 13 and so reduce the overall length of the truck. The platform is mounted on the truck frame by a pair of levers 17 which are connected to a further pair of levers (not shown) at the other end of the platform by rods 21. The thrustors are suspended from a plate 36 in such a manner that they may swing but are prevented from moving axially. In a modification (not shown) one thrustor only is provided; the operating force being transmitted from the lever 27 actuated thereby to the other lever by the torsion tube 29. According to a further modification (also not shown) the platform 10 is replaced by a pair of pallet-engaging tines.
Patent GB-1401881-A (GB)
Title: Vehicle suspensions
IPC: B60G11/26
Filed: 1972-07-21
Abstract: 1401881 Tension springs SOC APPLICAZIONI GOMMA ANTIVIBRANTI SAGA SpA 21 July 1972 [21 July 1971] 34113/72 Heading F2S [Also in Division B7] A tension spring for a vehicle suspension (see Division B7) comprises a hollow cylindrical body of elastomeric or plastics material reinforced with an even number of helical windings 16, 17 of metallic wire or twisted textile threads, the windings of each pair being inclined at the same angle X to the longitudinal axis of the body but oppositely wound. The interior of the hollow body is supplied with liquid or gas under pressure. This may be a closed volume of fluid, in which case the rigidity of the spring increases as it is tensioned. Alternatively there may be a compensator for keeping the pressure of the fluid, and hence the rigidity of the spring, constant with extension, or for varying the fluid pressure to allow for load and road conditions. The tension spring may be used straight as shown (and in Figs. 1, 2, not shown), or U- shaped or in a closed loop (Figs. 5 and 6, not shown). In each ease the spring acts on a lever connected to the vehicle wheel. Graphs of the spring characteristic are given (Fig. 4, not shown).
Patent GB-340703-A (GB)
Title: Improvements in or relating to hand wheels for vehicle steering and like controls
IPC: B62D1/04
Filed: 1929-11-08
Abstract: 340,703. Hand wheels. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, and GOODYEAR, E. F., of Dunlop Rubber Co., Foleshill, Coventry. Nov. 8, 1929, No. 34116. [Class 80 (iv).] In motor-vehicle and like steering-wheels, valve hand wheels, &c., a strengthening-plate 1, having projections 2 to fit over and stiffen the inner ends of the spokes 3, is secured on the boss of the wheel, which is preferably formed of complementary pressings 7, 8, dished centrally at 9, 10 to receive a reinforcing-piece 6. The plate 1 has holes 4, the metal around which may be plunged into holes 5 in the part 6, in order to supplement the securing rivets or screws (not shown). The parts 7, 8 may be united by welding or folding the edges, and may be corrugated to improve the grip. The wheel may be wholly or partly covered with celluloid, fabric, rubber, or a combination thereof. The Provisional Specification describes the formation of grip.ridges on the rubber covering of the rim.
Patent GB-390572-A (GB)
Title: A new or improved system for controlling the operation of railway points, signals and the like
IPC: B61L19/14
Filed: 1931-12-09
Abstract: 390,572. Interlocking railway signals and points. BRITISH POWER RAILWAY SIGNAL CO., Ltd., Windsor Works, Slough, Buckinghamshire, SIEMENS & GENERAL ELECTRIC RAILWAY SIGNAL CO., Ltd., Caxton House, GLENN, S. L., 3, Central Buildings, both in Westminster, and HORLER, F., Central House, Kingsway, London. Dec. 9, 1931, No. 34147. [Class 105.] Relates to electric railway-signalling apparatus in which the signals and points are controlled by switch devices operated by levers, pushes, or the like, and in which interlocking is effected by preventing the completion of a circuit to any conflicting signal or points although the levers are always free to be moved. According to the invention, each lever switch device has associated therewith an " interlocking" relay to control the contacts for operating the signal or points and the circuit to this relay includes a contact of its own switch device and contacts of other " interlocking " relays and of traffic-controlled devices so that the relay can only be energized when the conditions are correct. The " interlocking" relay may be a two-coil relay with interlocked armatures, or a polarized relay. To clear a signal for the passage of a train over a main line having a crossover, the cross-over must be at normal so that the contact slide N12 of the cross-over lever relay B closes its contact 12 whereby, on moving the signal lever SA over to close contact 4-5, the reverse coil R of the signal lever relay A can be energized to actuate its contact slides N<2>, R<2> to close the reverse contacts and so cause clearing of the signal. When the signal lever is returned to normal the coil N is energized to return the contact slides N<2>, R<2>. The economy contact X opens when armature N<1> is lifted but this armature is held up in known manner by a latch released only when the coil R is energized. The inoperative coil N or R is shunted by the lever bridging contacts 2-3 or 5-6 to prevent actuation by stray current. The lever may be held sufficiently firmly over in the reverse position against the action of a return spring by a permanent or electro magnet effective only when the signal or points have moved over and closed detector contacts ; the holding action is not sufficient to prevent manual restoration to normal.
Patent GB-1318912-A (GB)
Title: Tamping tool unit for railway track tamping machines and a track tamping machine having such tamping tool units
IPC: E01B27/17
Filed: 1970-07-14
Abstract: 1318912 Railway ballast tamping machines F PLASSER 14 July 1970 [8 Aug 1969] 34161/ 70 Heading E1G A motorised tamping tool unit for a railway ballast-tamping machine comprises at least one pick holder 18 which depends from a shaft 17 on a support 12 and is vibrated by a hydraulic motor 14 on the support, the support 12 being progressively rockable-e.g. by jack 26 about a horizontal axis 13 to squeeze the vibrating pick 18' towards a sleeper 4. As shown a shaft 17 carrying a pair of laterallyadjustable pick holders 18 is mounted in a casing 12 which is freely pivotally suspended on a motor-driven shaft 13 and is positioned by jack 26. Within the casing a guide arm 24 rigid with shaft 17 is oscillated by a slide block 23 rotatably mounted on an eccentric portion of the shaft 13. The shaft 13 and jack-pivot 28 are mounted on a column 11 forming part of a height-adjustable unit, Fig. 1 (not shown) on a track-maintenance machine. Such machine may include track lifters (9) and monitoring devices. Numerous combinations of hydraulically-oscillated tamping units are suggested, Figs. 4-7 (not shown) in many of which the units can be swung about vertical pivots (30), or driven in pairs from common motors (14).
Patent GB-176146-A (GB)
Title: Improved means of control for motor cycles or the like
IPC: B62M25/04
Filed: 1920-12-03
Abstract: 176,146. Alexander, G. C. Dec. 3, 1920. Control mechanism.-A hand-grip upon the handle-bar or the like of a motor-cycle is axially slidable so as to operate a Bowden-wire control for fittings such as a carburettor or magneto, a collar on the handle-bar acting as a stop and as a fulcrum for the thumb or a finger during the displacement of the grip. Fig. 3 shows a construction wherein the grip may be rotated as well as axially displaced in order to operate two wires independently of each other. The hand grip is formed of a part A which is slidable, and a part B which is both slidable and rotatable, on the handle-bar 6. A stop 5 on the handle-bar serves as an abutment for the thumb. The part B carries with it a sleeve 3 having a cap 2 connected to a wire cable 1, which is thus operated by an axial displacement of the hand-grip. The sleeve 3 is locked in any axial position by a pair of blocks 7, 8 pressed apart by springs 9. The block 8 may be provided with a friction pad 13 of leather &c. and the block 7 with antifriction balls. Pressure applied to a knob 11 attached to the block 8 allows the blocks to slide freely. The rotation of the sleeve 3 turns, through the medium of a key 17, another sleeve 16, which is axially constrained by screws &c. working in a groove in a plug 21 secured in the handle-bar 6. Projections on the sleeve 16 engage a helical groove in a spindle 15, which is axially but non-rotatively displaceable in the plug 21. A second control wire 22 is attached to the spindle 15, and the first wire 1 passes freely through the spindle. Rotation of the part B thus operates the wire 22 independently of the wire 1. According to the Provisional Specification, the locking-device comprises a block inside the handle-bar connected by a spring-plunger to a serrated wedge, which in its normal position engages the serrated sides of an opening in the handle-bar, and is depressed by a pin to permit of longitudinal displacement.