baber/WOPTO huggingface dataset:
Patent GB-921240-A (GB)
Title: Flying control system for aircraft
Inventor: EBDON ERIC
IPC: B64C13/00
Filed: 1960-06-16
Abstract: 921,240. Controlling aircraft. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. May 18, 1961 [June 16, 1960], No. 21176/60. Class 4. An aircraft having lift control devices, e.g. combined high lift flaps and ailerons, or jet flaps, at the trailing edges of the wings, comprises a pilot's control column 21 connected to a lever 33 pivoted at its mid point on a support and connected at its opposite ends to the lift control devices on opposite wings, so that pivoting of the lever by the control column operates the lift devices in opposite senses, and a further control connected to move the support and lever bodily to operate the lift control devices in the same sense. In the embodiment described, the wings each have an outboard and an inboard jet flap control surface. The control column 21 has a handle 22 pivotable on a pin 23 and fast with a lever 24 connected by cable 25 with a pulley 27 rotatable on a fixed axis 28. Fast with the pulley is a lever 29 connected by link 30 to a parallel lever 31 fast with lever 33, the levers 31 and 33 being pivotally supported in parallel members 32 which are pivotable about axis 28. Displacement of handle 22 pivots lever 33, each end of which is connected by a rod 34, lever 35, and cables 36, 37, to a bell crank lever 42 operating the hydraulic jack 9a of an outboard jet flap control surface (not shown). The two outboard jet flap control surfaces are thus operated in opposite senses. A lift control lever 52 operates a hydraulic jack 50 connected by linkage 49, 48, lever 46, and link 45, to members 32, so that operation of lever 52 swings lever 33 bodily about axis 28, to operate the outboard jet flap control surfaces in the same sense. An arm of lever 46 is connected by cables 56, 57, to bell crank levers 61 operating the hydraulic jacks 9b of the inboard jet flap control surfaces (not shown), the bell crank levers being interconnected by a further cable 62. All four jet flap control surfaces are thus operated together in the same sense by control lever 52. The jack 50 includes a spring box, so that lever 52 can be moved to a desired " flaps down " position, the control surfaces following at a predetermined rate. There may be discrete " flags down " positions. The hydraulic jacks may be duplicated. The control 52 may turn the inboard and outboard surfaces through different angles. The outboard surfaces may be lowerable through 40 degrees by control 52, and may be deflectable by 20 degrees, either side of neutral by the control column.
Patent GB-1447004-A (GB)
Title: Aircraft aerial systems
IPC: H01Q1/28
Filed: 1974-05-14
Abstract: 1447004 Aerials ELLIOTT BROS (LON. DON) Ltd 17 Feb 1975 [14 May 1974] 21180/74 Heading H4A An aircraft H.F. aerial comprises a rigid conductor across a point where a change in section of the aircraft structure occurs. The conductor is fed at one end and electrically connected to the structure at the other. As described an aluminium coupling conductor 1 of hollow box construction extends from the body 2 of the fuselage to the tail boom of a helicopter. The cross-sectional dimensions of the conductor increase from the end 4 to the end 3, where it is mechanically and electrically connected to the boom. An extension plate 7 may be provided to improve electrical coupling. End 4 passes slidably through a moulded insulator, and is fed from an aerial tuning unit 6 in the body via a cable.
Patent GB-221808-A (GB)
Title: Improvements in and relating to thermionic amplifiers used in transmitting speech orlike currents of varying frequencies
IPC: H03G5/08
Filed: 1924-09-09
Abstract: 221,808. Siemens & Halske Akt.-Ges. Sept. 14, 1923, [Convention date]. Addition to 154,925. Amplifying systems.-In order to obtain a uniform amplification of all speech frequencies, the input or output transformer is shunted by an impedance comprising an ohmic resistance K, an inductance L, and a capacity C all connected in series, the inductance L being in turn shunted by a capacity C<1>. The values of L and C are tuned to the frequency it is desired to amplify least, whilst the circuit L, C' is tuned to the highest frequencies in the speech band so that these are relatively accentuated. More than one such resonance shunt may be provided in the amplifying system.
Patent GB-722154-A (GB)
Title: Improvements in or relating to the hardening of epoxide resins
IPC: C09J163/02
Filed: 1952-08-26
Abstract: Epoxide resins are admixed with salts of di- or higher valent metals with substances exhibiting keto-enol tautomerism as hardening agents. Suitable metals are aluminium, cobalt, copper and nickel and tautomers mentioned are acetoacetic ester, malonic ester and b -diketones, e.g. formylacetone, acetylacetone or formylacetophenone. The salts may be added in solution to the resin or a solution thereof, or may be melted in to the resin. The epoxy resins may be mixed with a monoepoxy compound, e.g. glycidyl phenyl ether.  In examples (1), (2), (3), (5) and (6) resins produced from p,p1-dihydroxydiphenyldimethyl methane and dichlorhydrin or epichlorhydrin are mixed with (1) aluminium acetoacetic ester (Al(C8H9O3)3) to by melting give an adhesive hardened at 120 DEG  C.; (2) a solution of Al(C8H9O3)3 in ethylene glycol, to give a lacquer; (3) Co(C8H9O3)3; (5) nickel-acetylacetone; (6) Al(C8H9O3)3.  In example (4) a resin produced from resorcinol and epichlorhydrin is mixed with the copper compound of formylacetophenone.
Patent GB-316434-A (GB)
Title: Improvements in and relating to floor coverings and the like
IPC: D06N1/00
Filed: 1928-07-24
Abstract: 316,434. Irwin, D. L., and Tippins, R. E. July 24, 1928. Multiple superposed coatings; special fabric bases; treatment prior to coating; compound fabrics; inlaid linoleum.-In floor coverings &c. of flexible or semi-flexible character comprising a, foundation of bituminized felt and a surface of linoleum composition, the felt is coated with an aqueous emulsion of a resinous material which does not contain any considerable proportion of filling or other solid material and may be free therefrom, prior to the application of the linoleum composition. The emulsion may include pitch or bituminous material and rosin in substantially equal proportions; it may comprise, for instance, 68 parts by weight of stearin pitch having a fusing point of 65‹ to 70‹ F., 61 parts of rosin, 2 parts of borax, 13 parts of casein, 13 parts of ammonia of 26‹ BaumÚ, and water sufficient to yield a composition of the desired consistency. The pitch and rosin are mixed, heated to 250‹ or 300‹ F., and the mixture run slowly at 190‹ to 210‹ F. into a dispersion formed by mixing casein with about 4 or 5 times its weight of water, allowing it to soak and then adding borax in solution. The mixture is allowed to cool and become viscous, when it is thinned with water. The ammonia is then added, and then water. The bituminized felt is treated with this emulsion, and a sheet of linoleum composition applied. The back of the felt is treated with a floor-cloth backing paint. The composite sheet is passed between heated rollers and then stoved or cured. Inlaid linoleum may be made by applying shaped pieces of linoleum composition to the felt. Specification 299,178 is referred to.
Patent GB-712671-A (GB)
Title: An electrical circuit for giving an indication of the condition of one or more storage circuits
Inventor: BRANCH MAURICE CHARLES
IPC: H03K17/52
Filed: 1952-08-27
Abstract: 712,671. Discharge-tube circuits. STANDARD TELEPHONES & CABLES, Ltd. Aug. 27, 1952, No. 21543. Addition to 636,700. Class 40 (6) A circuit for indicating the state of conductivity of a discharge gap comprises a coincidence gate circuit of the type described in the parent Specification connected between an output electrode of the gap and a source of pulses so that an output pulse is produced only when the gap is in a predetermined state of conductivity or non-conductivity. The Figure shows a circuit for "examining" the state of conductivity of a series of cold-cathode gas discharge tubes S1-S4 upon which information is stored as indicated by the conductivity or non-conductivity of any tube. A series of positive-going pulses is applied at each of the inputs PA-PD so that a positive pulse appears at the junction of resistor R3 and rectifier MR1, which together form a coincidence gate circuit as described in the parent Specification only when the corresponding tube S1-S4 is not discharging. If the corresponding discharge tube S1-S4 is discharging no "examining" pulse is passed to the output terminal via rectifier MR2 and capacitor C1. Thus in dependence upon the state of tubes S1-S4 "examining" pulses will either be present or absent at the junctions of resistors R3 and rectifiers MR1 and if tube G1 is discharging rectifiers MR2 will be conducting to pass these pulses to the output circuit. In a modification the coincidence gate circuits MR1, R3 are connected to the cathodes of the discharge tubes S1-S4 to be tested; in this case a pulse is only passed to the output when the respective tube is discharging. Specification 712,643 also is referred to.
Patent GB-757002-A (GB)
Title: Improvements in or relating to crystalline vinylidene chloride copolymers
Inventor: KIDWELL ALFRED SPILLER
IPC: C08F214/08
Filed: 1954-07-23
Abstract: Terpolymers are made by polymerizing a monomeric mixture consisting of 94 to 97 parts by weight of vinylidene chloride, 3 to 6 parts of methyl acrylate, and 1 to 7 parts of trichloroethylene.  The polymerization may be effected in an inert solvent or in aqueous emulsion or suspension, and in the presence of a polymerization catalyst.  It may be terminated at 80 to 95 per cent conversion. Emulsifying agents mentioned are gelatin, starch, and polyvinyl alcohol.  The catalyst may be benzoyl peroxide, acetyl peroxide, lauroyl peroxide, 2,4-dichloro-benzoyl peroxide, tert.-butyl hydro-peroxide or peracetic acid.  The polymer may be extruded into filaments and cold-drawn.
Patent GB-933387-A (GB)
Title: Improvements in or relating to mechanical razors
IPC: B26B19/02
Filed: 1961-06-14
Abstract: 933,387. Dry shavers. L. RESSLER. May 31, 1962 [June 14, 1961], No. 21552/61. Class 131. A dry shaver comprises a flexible band 17 extending from front to rear of a housing and over movable blade means 15, the band having a plurality of perforated sections 18, 19, 20, Fig. 4, each adapted to constitute a foil head, and means are provided for moving the band longitudinally so as selectively to bring the sections each to a position over the blade means. The sections 18 to 20 are of different thickness and the perforations of each section are of different size from the perforations of the other sections. The band also has a section 21 having apertures which when disposed over the blade means enable shavings to be expelled from the shaver. The band has another section 23 formed with a single aperture which when located over the blade means enables shavings to be expelled by inverting the shaver. The band has a further section 22 which is adapted to serve as a guard for the blade means. The band has flexible strips 26 each terminating in a spring 27 having a hook 28 engageable with an eye 29 to connect the ends of the band together. The band is disposed within a casing 32. The blade means, which may be reciprocable laterally or in a rotary direction, are driven by an electric motor 5. The band is movable longitudinally beneath the casing 32 by means of a knob 33 connected to the band by a stem 34 which projects from the band through a slot 35 in the casing 32. The shaver has an internal switch which ensures that the motor is cut out when the section 22 or 23 is located over the blade means. Any desired section may be secured temporarily in position, e.g. by providing the underside of knob 33 with a spring-loaded ball to engage recesses in the casing 32.
Patent GB-1376642-A (GB)
Title: Bleed type fluid pressure control apparatus
IPC: G05D16/06
Filed: 1972-01-13
Abstract: 1376642 Fluid-pressure servomotor systems JOHNSON SERVICE CO 13 Jan 1972 [13 Jan 1971] 21577/74 Heading G3P [Also in Division F2] The subject-matter of the present Specification also appears in Specification 1376641, but the claims are directed to the arrangement illustrated by Fig. 8 of the latter Specification.
Patent GB-842211-A (GB)
Title: Improvements in and relating to tools for rolling screw-threads, and other forms upon a cylindrical surface
IPC: B21H3/04
Filed: 1957-07-08
Abstract: 842,211. Rolling screw-threads. ACTON BOLT Ltd., and DORSETT, T. F. July 8, 1958 [July 8, 1957; Feb. 19, 1958], Nos. 21591/57 and 5429/58. Class 83 (4). A tool for rolling a screw-thread or other profiled form on a revolving workpiece comprises a pair of rolls mounted in a holder for independent rotation about parallel axes, means for biasing the rolls into a desired angular relationship and means for varying the setting of the biasing means. Each roll 10 or 11 has a spindle 11a, 11b by which it is mounted in a holder comprising two parts 14, 15 interlocked and fastened by a bolt 18. The holder is pivotally mounted on a carrier 13 by a pin 12. The biasing means for each of the rolls comprises an index plunger 19 slidably mounted in a sleeve 21 but prevented from rotating therein by opposed keys 22. Spindle 11a has inclined cam surfaces 28 engaged by mating surfaces 29 on the plunger 19 which is loaded by a spring 31. Rotation of a roll by the work causes the surfaces 28 to ride up the surfaces 29 and compress the spring 31 but when the roll is disengaged from the work it is rotated back to its selected angular position in the holder. This position can be adjusted by slacking off a clamping-ring 24 and then turning the sleeve, plunger and roll as a unit. To prevent accidental damage the rolls are allowed limited axial movement in the holder and the holder may have limited transverse movement in the carrier against a spring 32. The carrier is mounted on the traversing mechanism of a suitable machine by means of studs 33 passing through elongated holes 34. In a modification, Fig. 3, the two roll-carrying limbs of the holder are hinged by means of pins 45, 46 and the pass is adjustable for work of different diameters by screwing the limbs to various spacing members 51.
Patent GB-225276-A (GB)
Title: Improvements in and relating to earthing switches for use with wireless circuits
IPC: H01H27/00
Filed: 1923-08-27
Abstract: 225,276. Hough, Ltd., J. E., and Pleasance, F. W. Aug. 27, 1923. Grounding aerials. - A switch by which the aerial is earthed except when a plug is inserted to couple up a receiving set comprises a chambered block of insulating material a carrying two terminals b, c which are connected by a leaf spring f secured to one of them. The other terminal is connected to a bearing h by a plate g. A plug having concentric conducting members j, k may be inserted into the bearing h and the member k then engages the bent end of the spring and breaks the connection between the terminals b, c. A connection is established between the terminals b, c and the conductors of a twin lead l<2>, which are connected to the members j, k by terminals on an insulating plate i<1> carrying the plug members j, k and covered by an apertured cap i screwed on to the plate.
Patent GB-479360-A (GB)
Title: Improvements in or relating to reinforced concrete glazing bars
IPC: E04D3/14
Filed: 1936-08-06
Abstract: 479,360. Glazing roofs. THOMPSON, W. R., THOMPSON, R. H., and THOMPSON. J. W. Aug. 6, 1936, Nos. 21637 and 35217. [Class 20 (iii)] Flashing strips 3 for sash bars consist of strips of lead secured in grooves in the bar during or after casting. Cement or mastic or other suitable grouting material may be used to secure the strips. One or both edges of the strips may be beaded. The glazing bar 1 is preferably of reinforced concrete having a bottom vertical rib 1d tapering from maximum depth at the middle to zero at the ends where the bar rests on the roof supports, and a nut 9 is cast in the end of the bar for a bolt which secures an end stop 10. The nut is positioned by casting in a bolt and nut and subsequently removing the bolt.
Patent GB-597728-A (GB)
Title: Improvements in apparatus for coating and/or impregnating threads with synthetic resins
IPC: D06B1/14
Filed: 1945-08-24
Abstract: A composition for coating threads contains two copolymers of vinyl chloride and vinyl acetate having molecular weights of 10,000 and 24,000, a plasticiser, and a ketone solvent such as methyl ethyl ketone.  The plasticiser may be dioctyl phthalate mixed with dibutyl phthalate or tricresyl phosphate.  Pigments or oil-soluble colours may be added.
Patent GB-597729-A (GB)
Title: Improvements in or relating to combustion chambers of internal combustion engines
IPC: F02B3/00
Filed: 1945-08-24
Abstract: 597,729. Combustion chambers. MORRISON, A. C. Aug. 24, 1945, No. 21771. [Class 7 (iii)] The combustion chamber of a compression ignition engine of the kind having, main and subsidiary air swirls A, A<1>, respectively, with the fuel jet J crossing arid passing through the subsidiary swirl has depressions or grooves formed in the piston crown and/or either the opposing face of a piston valve in the cylinder head or the head itself for the purpose of producing the swirls. In Figs. 1 and 2 the piston W.P. has depressions 5, 6 of tapering depth, the main air swirl A originating in the depression 5 and leading into the central depression 7, and the subsidiary swirl occurring in the depression 6 whence it passes the fuel jet 2 and combines with the main swirl. In a modification, the swirling chambers are constructed by depressions formed partly, in the piston top and partly in the head of an opposed piston valve and in another modification the depressions are formed entirely in the cylinder head:
Patent GB-1342533-A (GB)
Title: Pressure-reducing valve
IPC: F16K1/30
Filed: 1971-04-19
Abstract: 1342533 Valves SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 19 April 1971 [17 Feb 1970] 21799/71 Heading F2V In a pressure reducing valve having a closure member 82 which experiences an auxiliary opening force proportional to the flow rate, the closure member is adjustably biased to its open position by spring 90 acting on diaphragm 100 responsive to pressure in outlet chamber 103 which receives fluid via ports 89 in the closure member, intermediate chamber 113 defined by bellows 110 and restricted passage 83, 81 in stem 80. The pressure differential between chambers 113, 103, varies according to the flow rate and causes the auxiliary opening force to be applied to the closure member.
Patent GB-1132686-A (GB)
Title: Protective head covering
IPC: A42B3/14
Filed: 1967-05-11
Abstract: 1,132,686. Helmets. FIBRE-METAL PRODUCTS CO. 11 May, 1967 [9 Dec., 1966], No. 21854/67. Heading A3V. A helmet 20 consists of a rigid shell 21 and a cradle 22 which supports the shell 21 in spaced relationship to the wearer's head. The cradle 22 consists of a sheet of flexible yieldable material, e.g. plastics material, having downwardly extending extensions 51, 52, 53, 54, 55, 56. The extensions 51, 53, 54, 56 are detachably secured to the shell 21 by projections 60 on the extensions engaging in sockets 34 on the shell 21 and the extensions 52, 55 are attached to a headband 72 by headed pins 75. The cradle 22 has cutouts 67, 68, 69 and has a plurality of apertures arranged in concentric annular arrays over its surface to increase its flexibility and to provide ventilation. The shell 21 may be provided with a peak 26, a gutter 29 and reinforcing ribs 30, 31 along its rear and side edges.
Patent GB-768262-A (GB)
Title: A packing container made of non-metallic material
IPC: B65D8/04
Filed: 1954-07-27
Abstract: 768,262. Portable containers; closures. MAUSER, A. July 27, 1954 [June 15, 1954], No. 21870/54. Classes 66 and 125(3). The thickness of the container wall 1 of non-metallic material e.g. plastic or pasteboard is reduced at the ends preferably to about half its thickness to permit of folding and seaming. At the lower end 5 the wall is seamed into a fold with the bottom end member 3, the inner linings 2 and 4 being contained into the fold. At the upper end the wall is rolled at 8 and may be wired as at 9, thereby forming a seating for a removable closure 10 having a lining 12 and packing 11 held in place by a clamping ring 13. The lining may be metal or plastic.
Patent GB-964785-A (GB)
Title: Improvements in or relating to tailstocks
IPC: B23B23/00
Filed: 1961-06-16
Abstract: 964,785. Tailstocks. P. F. DE VALLIERE. June 16, 1961 [June 24, 1960], No. 21942/61. Heading B3T. A tailstock is provided with a number of feed drives for the spindle one of which is by a hand wheel and the other or others by mechanical drive means, a single movable member enabling the drive to be changed. The centrespindle 1, Fig. 1, of the tailstock is provided with a rack 3 the teeth on which are cut as part of a cylindrical " thread." A pinion 4 on a transverse shaft 5 operated by a hand wheel gives a quick-feed. A sleeve 7, threaded interiorly to match the rack teeth is rotatable and supported within a further eccentric sleeve 9, Figs. 1 and 3, threaded into the tailstock housing. Adjustment of a collar 10 on this sleeve brings the threaded member 7 into engagement with the rack for slow-feed operation by the hand wheel 8. In a modified arrangement, Fig. 4, a pinion 18 engages the rack for a quick-feed and a smaller pinion 26, meshing therewith and slidably keyed to a shaft 24, may be moved by a control lever into three positions, viz.: (1) where a slow drive is taken through hand wheel 22, skew-gear sleeve 23, pinion 26 and rack pinion 18; (2) mechanical drive from a shaft 27 and skew-gear 29 to pinion 26 etc.; (3) a mid-neutral position when the quick-speed may be operated.
Patent GB-1267632-A (GB)
Title: A microphone for direct conversion of sound signals into pulse-coded electric signals
Inventor: BERNARD PATRICE
IPC: H04R1/00
Filed: 1970-05-07
Abstract: 1,267,632. Digital microphones. P. BERNARD. 7 May, 1970 [27 June, 1969], No. 21985/70. Heading G4H. [Also in Division G1] A digital optical microphone, particularly for a telephone handset, includes an interferometer consisting of a two-prism block 1 and a mirror 2 attached to the microphone diaphragm 25. Infra-red radiation from a diode 4 is reflected off the moving mirror 2 and the back face of the block, interferes and is detected by photodiodes 3 1 , 3 2 . The two photo-electric signals are in phase quadrature due to the different thicknesses of reflecting coating 2 0 , 2 1  on the mirror 2 which reflect light to the photodiodes 3 1 , 3 2  respectively. The two signals may be deltamodulated by a logic circuit (Fig. 4, not shown), which may additionally include a winding, providing a biasing force on the diaphragm, which receives an integrated value of the two photo-electric signals (Fig. 6, not shown).