baber/WOPTO huggingface dataset:
Patent GB-715313-A (GB)
Title: Improvements in or relating to automatic flight control systems and automatic pilots
IPC: G05D1/08
Filed: 1949-12-01
Abstract: 715,313. Automatic flight control systems. SPERRY CORPORATION. Dec. 1, 1949 [Dec. 1, 1948], No. 30860/49. Class 38(4) A predetermined attitude of an aircraft is corrected and maintained by earth references devices, e.g. pendulums controlling the auto-pilot. The predetermined bank or pitch is initiated by the pilot's control member, which (i) generates a signal proportional to its rate of movement to operate the control surfaces and (ii) tilts a platform carrying the earth reference devices through an equal and opposite angle so that they remain in substantially the same plane with reference to the earth. Any error in the attitude thus initiated is gradually corrected by the pendulum devices. A gyroscopic pendulum compensated for centripetal and longitudinal accelerations such as that described in Specification 641,360 may be used, or the pendulums may be compensated, Fig. 3 (not shown). As shown, Fig. 1, the ailerons, rudder and elevator are servo controlled from conventional torqued roll, jaw, and pitch gyros 11, 12, 13. The pilots control member 31 is mounted for rotation about axes 32, 35 (at right angles in a horizontal plane) to operate generators 36, 38 giving signals dependent on the rate of movement which are applied to torque motors on the gyros 11, 12, 13. The pitch voltage is divided between the rudder and elevator systems by a cross-over controller 63 according to the angle of bank. Transmitters 40, 41 also operated by the control member 31 actuate a displacementservo-system to tilt the platform 43 carrying pitch and roll pendulums 45, 46 and a compass repeater 49. The platform may alternatively be tilted by direct mechanical connection to the control member, Fig. 3 (not shown). The correct rate of turn for the selected bank-angle is controlled by a computor 70 as described in Specification 715,312 together with a pendulum side-slip-detector 73. The pitch and roll pendulums may alternatively be replaced by a gyro pendulum and the roll pendulum may be compensated for centripetal acceleration by applying a torque proportional to the rate of turn times the velocity of the craft, obtained from a twophase induction motor energized from true-air-speed indicator and a rate of turn generator on the compass repeater, Fig. 2 (not shown). Eddy current brakes may be provided to limit the speed of movement of the control stick. Specification 715,379 also is referred to.
Patent GB-156979-A (GB)
Title: Improvements in saddles for cycles, motor cycles and the like
IPC: B62J1/02
Filed: 1919-12-10
Abstract: 156,979. Lattre, W. A. de, Lattre, M. de., and Middlemores (Coventry), Ltd. Dec. 10, 1919. Saddles. - The bow springs supporting the rear of the saddle consist each of a plurality of strips A, B, C, clipped together to form a leaf spring.
Patent GB-838952-A (GB)
Title: Resin-drug compounds
Inventor: LINNELL WILFRED HERBERT
IPC: A61K47/48
Filed: 1957-10-03
Abstract: Resinate salts of basic vitamins (e.g. aneurine, pyridoxine or riboflavine) are made by reacting a basic vitamin or its hydrochloride with an acidic cationic ion-exchange resin, for example, a polystyrene polymer cross-linked with divinyl benzene and containing sulphonic acid groups or carboxylic acid groups.  The use of a crosslinked methacrylic acid resin of high stability is also disclosed.  The degree of saturation of the resin with the basic vitamin can be varied.  The salts are insoluble in solvents and have therapeutic properties.ALSO:Resinate salts of basic vitamins are made by reacting a basic vitamin or its hydrochloride with an acidic cationic ion-exchange resin, for example, a polystyrene polymer cross-linked with divinyl benzene and containing sulphonic acid groups or carboxylic acid groups (the use of a cross-linked methacrylic acid resin of high stability is also disclosed).  The basic vitamin may be aneurine, pyridoxine or riboflavine.  The degree of saturation of the resin with the basic vitamin can be varied.
Patent GB-1477955-A (GB)
Title: Triazine derivatives
IPC: C07D251/70
Filed: 1975-07-24
Abstract: 1477955 Herbicidal s-triazine derivatives CIBA-GEIGY AG 24 July 1975 [25 July 1974] 31028/75 Heading C2C Novel s-triazine derivatives of the Formula (I) wherein R 1  represents hydrogen, C 1 -C 6 -alkyl, C 3 -C 6 -cycloalkyl, C 4 -C 7 -cycloalkylalkyl, C 2 - C 6 -alkoxyalkyl, C 2 -C 6 -cyanoalkyl, C 3 -C 4 - alkenyl or C 3 -C 4 -alkynyl, R 2  presents hydrogen or C 1 -C 6 -alkyl, R 3  represents hydrogen, C 1 -C 6 - alkyl, C 3 -C 6 -cycloalkyl, C 2 -C 6 -cyanoalkyl or C 3 -C 4 -alkenyl, R 4  represents C 1 -C 6 -alkyl, C 3 -C 6 -cycloalkyl, C 2 -C 6 -alkoxyalkyl, C 2 -C 6 - cyanoalkyl or C 1 -C 6 -halogenoalkyl, R 5  represents methoxy, ethoxy, methylthio, ethylthio or azido (N 3 ), and Y and Z each independently represent sulphur or oyxgen, are used in herbicidal compositions. They may be prepared by reacting a compound of the formula with methyl mercaptan, ethyl mercaptan, an alkali metal azide, an alkali metal methylate or an alkali metal ethylate, in the presence of a base.
Patent GB-427613-A (GB)
Title: Process of preparing solutions of cellulose in sulphuric acid and artificial silk threads, films, bands, and such like artificial products thereof
IPC: C08B1/00
Filed: 1934-10-30
Abstract: The process described in the parent Specification for preparing solutions of cellulose by dissolving cellulose in sulphuric acid of over 60 per cent concentration and adding a diluent which is soluble in the solvent until the concentration of the sulphuric acid is lower than 60 per cent, is improved or modified by using as diluent, sulphuric acid of at the most 45 per cent concentration, or viscous substances such as glucose or glycerine.  Examples of suitable diluents are 30 per cent sulphuric acid, 20 per cent sulphuric acid made somewhat viscous with glucose, and a mixture of glucose and water.  The solutions may be employed for the production of artificial silk, films, and the like.  Specification 427,611 is referred to.
Patent GB-917985-A (GB)
Title: Improvements in or relating to photographic cameras having automatic exposure control means
IPC: G03B7/085
Filed: 1960-09-09
Abstract: 917,985. Photographic cameras. KODAK Ltd. Sept. 9, 1960 [Sept. 10, 1959], No. 31100/60. Class 98 (1). [Also in Group XL (b)] A photo-electrically operated exposure controlling member provides an artificially illuminated signal in the viewfinder when the light level is too low for a correct exposure. A lamp 40, Fig. 1, in the circuit of the camera motor 46 illuminates an aperture scale 36 on the photoelectrically controlled diaphragm vane 12 and an image of scale 36 is transmitted by mirrors 52, 54 to a signal aperture 62 visible through the viewfinder eyepiece 64. If a pinhole aperture is placed in front of lamp 40, the lens 50 may be omitted. In a modification, Fig. 8 (not shown), the scale is replaced by a notch or lug which is aligned with the lamp 40 at the position of largest aperture. In place of the notch, vane 12 may carry an arm 76, Fig. 4, which completes the circuit of lamp 40 in the position of largest aperture.
Patent GB-174749-A (GB)
Title: Improvements in and connected with building blocks and the erection of building construction therewith
IPC: E04B1/41
Filed: 1920-11-03
Abstract: 174,749. Brown, T. A., and Walker, C. Nov. 3, 1920. Building -blocks, special shapes of.- Concrete or like building-blocks have embedded in their upper portions bolts h, Figs. 1, 2 and 3, or other metal fastening-devices adapted to engage holes l in hollow metal fittings j embedded in the lower portions of superposed blocks. Cavities g extend from top to bottom of each block, thus enabling blocks in the same course to be secured together by bolts passed through horizontal holes s, which may be provided with linings t. The upper face and one side of each block are formed with projections b, c adapted to engage corresponding recesses d, e in adjacent blocks. Angular recesses o, o<1> are formed in the edges of the blocks, the verticallydisposed recesses being filled with packing-strips of wood &c. and the horizontally-disposed recesses with cement &c. Recesses r are provided for the reception of damp-proof cord &c. The ends of the blocks may have channels p, which are adapted to be filled with cement &c. and are arranged to communicate with cross channels q of the blocks below. In a modification, the vertical and horizontal cross-sections have the outline shown in Fig. 6. The blocks may be curved for use in building shaft and tunnel linings and other curved structures. In order to facilitate the lifting of a block, a bar m, Fig. 1, may be secured to it by means of the bolts h.
Patent GB-484814-A (GB)
Title: Improvements in or connected with internal combustion rammers
IPC: E01C19/36
Filed: 1936-11-14
Abstract: 484,814. Internal-combustion rammers. JOHNSON & SONS, Ltd., C. H., HARTLEY, J. A., and PHILIPPOVIC, J. W. Nov. 14, 1936, No. 31165. [Class 124] In an internal-combustion rammer, an auxiliary piston g co-operates with an opentopped auxiliary cylinder d located at the base of the main cylinder a to form an air compressor which further compresses the pre-compressed air within the cylinder d so as to elevate or return the blow-striking foot c and the piston rod or sleeve f without the use of internal springs. In the form shown, the sleeve f carries the auxiliary piston g but is not connected to the explosion piston e. The upper end of the sleeve f may be closed by a plug f<1> serving as an abutment for the explosion piston e and the latter may be formed with heat-dissipating webs or fins. A hand operated lever k is provided to move the explosion piston when starting up. A lubricating device l is fitted with a control valve l<1>, and oil ducts b<2> serve to lubricate the guide sleeve or bearing b<1>. An inlet valve h is supplied from a carburetter b having a breather b<3>. Specifications 293,228, 313,516, [both in Class 124], and 347,492, [Group XXVII], are referred to.
Patent GB-1454579-A (GB)
Title: Profile extrusion process
IPC: B29C48/90
Filed: 1974-07-15
Abstract: 1454579 Extruding and sizing foamed plastics COSDEN TECHNOLOGY Inc 15 July 1974 [17 July 1973] 31296/74 Heading B5A [Also in Division C3] Profiled products are made by extruding an expandable styrene polymer composition, containing as blowing agent 0À2 to 1À0 parts by wt. of an alkaline earth metal carbonate and 0À2 to 1À0 parts by wt. of an organic carboxylic acid per 100 parts by wt. of the styrene polymer, in the unexpanded state through a die orifice having the desired profile and then passing the extrudate through a sizing die having the desired profile and cross-section wherein the extrudate fully expands to produce a product having an unfoamed outer layer and a foamed interior. The expandable composition may consist of polystyrene or impact polystyrene i.e. a graft styrene/rubbery polymer with calcium or magnesium carbonate and citric or oxalic acid. The above products may be made in an apparatus (Fig. 1) consisting of an extruder 10 with feed 12, barrel 14 wherein the polymer is made molten and mixed with the blowing agent, and die 16 from which the unexpanded composition is forced into a vacuum fixture 20 consisting of a sizing die 22, with a profile shape the same as that of die 16 but of larger cross-section, the area around die 22 being under vacuum, and cooling chamber 26 from which the foamed polymer, having unfoamed surfaces is drawn by unit 30.
Patent GB-762879-A (GB)
Title: Process for purifying lactams
Filed: 1953-11-11
Abstract: A lactam is purified by passing the impure lactam in aqueous solution over both anion and cation exchangers.  The anion and cation exchangers may be used in any order and they may also be used in the form of a mixed bed.  Any non-ionogenic impurities which may be present may be removed by using a surfaceactive adsorption agent, e.g. activated carbon or a bleaching earth, in the form of a filter bed before or after passing the lactam solution through the ion exchangers.  Suitable cation exchangers are those containing strongly acid groups such as sulphonated polymerization and polycondensation products, e.g. sulphonated polystyrene.  Weaker cation exchange agents may also be used. Suitable anion exchange agents are quaternary ammonium bases of high molecular weight.  The concentration of the aqueous lactam solution should preferably not exceed 30 per cent and the lactam may be recovered from the treated aqueous solution by evaporation preferably under reduced pressure. The non-ionogenic impurities present in the impure lactam may also be removed by previously subjecting a solution of the lactam in an inert organic solvent medium to an oxidizing treatment so as to oxidize the impurities selectively, e.g. by the process disclosed in Specification 757,406.  In examples: (1) a 50 per cent aqueous solution of impure caprolactam is passed successively through a column filled with Dowex-50 and a column filled with Dowex-2 and the purified solution is then neutralized by passing through a pH correction filter and then evaporated to recover the purified lactam; (2) as in (1) except that the aqueous solution of the lactam is of 20 per cent concentration and the pH correction filter is stated to be Dowex-50; (3) a 20 per cent aqueous solution of impure caprolactam is passed successively through columns filled with Dowex-2, Dowex-50 and previously washed activated carbon and the purified solution then evaporated; (4) crude caprolactam is purified by passing a 20 per cent aqueous solution thereof through a column filled with a mixture of equal parts by volume of Dowex-2 and Dowex-50; (5) a 20 per cent solution in benzene of the lactam obtained by the Beckmann transformation of cyclohexanone oxime is boiled with a saturated aqueous solution of KMnO4 and after distilling off the water as an azeotrope with benzene the solution is filtered and extracted with water to give a 20 per cent aqueous solution of the lactam which is then passed successively through columns filled with activated carbon, Dowex-50, Dowex-2, and Dowex-50.
Patent GB-652029-A (GB)
Title: Improvements relating to the production of castings of palladium or palladium-containing alloys
IPC: C22C5/00
Filed: 1948-12-03
Abstract: In the production of castings of palladium or palladium-containing alloys, the metal is melted by induction heating and refined by an atmosphere containing one or more of the inert gases: argon, helium, neon, krypton and xenon and also either hydrogen or carbon monoxide. The melting may be performed in air or in the refining atmosphere. The atmosphere may be formed by directing separate jets of either argon or helium on the one hand and carbon monoxide on the other hand, or a jet of a mixture of the gases.  Alternatively hydrogen may be intermittently injected into an atmosphere of argon maintained over the molten metal.  Preferably the atmosphere never contains more than 10 per cent of rydrogen or carbon monoxide.  The invention may be applied to alloys containing as ittle as 25 per cent palladium and to alloys containing 50 per cent or more of palladium with the balance substantially one or more other elements such as platinum, rhodium, iridium, osmium, ruthenium, gold, silver, manganese, tungsten, iron, nickel, cobalt, and copper.
Patent GB-1146545-A (GB)
Title: Improvements in or relating to emergency lamps
Inventor: DENNETT ANTONY
IPC: B60Q1/26
Filed: 1966-07-13
Abstract: 1,146,545. Lens covers. STADIUM Ltd. 22 June, 1967 [13 July, 1966], No. 31422/66. Heading F4R. A lens cover 10 for modifying the colour of the light emitted by e.g. a vehicle reversing lamp 15 has an open box-like structure comprising a front wall 11 and a rim 12 and is provided with at least one strap 17 extending between opposite parts of the rim for securing the cover to the lamp. Preferably the strap is made of elastic material. The rim may have inwardly projecting ribs (23, Fig. 4, not shown) and the front wall an inwardly projecting stud (24) to space the cover from the lens.
Patent GB-410415-A (GB)
Title: Improvements in or relating to the production of rubber thread and apparatus therefor
IPC: B29D99/00
Filed: 1933-11-14
Abstract: 410,415. Rubber threads. INTERNATIONAL LATEX PROCESSES, Ltd., 10, Lefebvre Street, St. Peter's Port, Guernsey. Nov. 14, 1933, Nos. 31686, 31687, 31688, and 31689. Convention dates, Nov. 18, 1932. [Class 70.] Rubber thread is made by introducing latex into a coagulant by way of a support or backing surface an end of which is beneath the surface of the coagulant, and removing the length of coagulum produced. As shown, Fig. 1 latex is streamed through pipes 13 on to rods 14 dipping into coagulant. Thread is withdrawn from the ends of the rod through the coagulant and on to a travelling belt 23. In a further method, Fig. 6, latex is fed to the surface of rotating disc 65 and flows into the U-shaped flange extending below the surface of the coagulant. whence it is drawn over roller 74 by travelling belt 75. In other apparatus, not shown, rotating discs with flat or grooved edges are used. The term latex designates broadly coagulable dispersions of elastic materials. Specification 400,846 is referred to.
Patent GB-1089832-A (GB)
Title: Guard rail fence
IPC: E01F15/02
Filed: 1965-07-26
Abstract: 1,089,832. Crash barriers. H. ST. PIERRE. July 26, 1965, No. 31733/65. Heading E1G. The contiguous ends of the guard rails of a crash barrier are joined by a connecting plate through headed fasteners slidable in slots. The W-rails are bolted to wood or metal vertical post members of circular section held above ground level by curved supports embedded at their ends in the ground. A chain may be connected to the post members above the guard rail. On impact will extend due to the slotted butt joint and then the curved supports will rotate in the ground.
Patent GB-905435-A (GB)
Title: Improvements in or relating to transistor beat-frequency oscillators
Inventor: BAXANDALL PETER JAMES
IPC: H03B21/00
Filed: 1959-09-18
Abstract: 905,435. Transistor oscillator circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 18, 1960 [Sept. 18, 1959], No. 31841/59. Class 40 (6). A beat frequency oscillator comprises a transistor amplifier of the virtual earth type J7, J8 fed from a switching circuit J5, J6, the input to the switching circuit being provided by a first oscillator J1, J2 and the switching signal being provided by a second oscillator J3, J4. As described both oscillators are " long-tailed pair " circuits employing transistors, the tuned circuit C2, L2 of the second oscillator being variable. The square-wave switching signal from J3, J4 is fed via transformer 21 to the switching circuit, the transistors J5, J6 of which are operated in an inverted manner, and the sine-wave output from J1, J2 is fed to the switch via filter FN1. The output from the switch is fed to the emitters of the amplifier J7, J8, the output from which is taken from the collector of transistor J8 via low-pass filter FN2. A balance control P1 is included between the bases of transistors J7, J8. To reduce coupling between the oscillator J1, J2 and the switch, an emitter follower stage may be included between them.
Patent GB-747111-A (GB)
Title: Improvements in foot-operated pumps
IPC: A62C8/00
Filed: 1953-11-18
Abstract: 747,111. Reciprocating pumps and compressors. BARRONIA METALS (GREAT BRITAIN), Ltd., and HENDERSON, J. R. P. Nov. 17, 1954 [Nov. 18, 1953], No. 31971/53. Classes 8(1) and 102(1). A double-acting pump or compressor comprises base 10 to which is attached a rod 12 carrying a piston 20 on which slides a cylinder 14 having trunnions 15, 16 that engage slots 37 in a frame 17 pivoted at 18 to the base 10 and having treads 19 at each end. The cylinder has inlet and outlet valves 21, 22 at each end and the trunnions 15, 16 have passages which form the inlet and outlet to the pump or compressor.
Patent GB-824844-A (GB)
Title: Improvements in or relating to fertilizers
IPC: C05B1/02
Filed: 1955-11-09
Abstract: A fertilizer in the form of soluble cubes contains 80-90% of plant feeding agents comprising bone meal, treated excreta, dried blood, calcium superphosphate, pulped vegetable matter, lime, hoof and horn mixture, soot, potassium nitrate, potassium sulphate, ferous sulphate and magnesium sulphate, and 5 to 6% of pest-deterrents comprising dried naphthalene, ammonium sulphate, liver of sulphur, potassium permanganate and D.D.T., the remainder being a solid inert diluent, such as silica sand, plaster, whiting, Portland cement, or china clay.  Trace elements in the form of manganese, zinc or copper sulphate, sodium borate or alluminium molybdate may be added. Additional ingredients may be chlorophyll, Epsom salts and colouring.
Patent GB-415019-A (GB)
Title: Stiffener for wearing apparel
IPC: A41D27/06
Filed: 1932-11-11
Abstract: 415,019. Stiffeners for wearing- apparel. GUILLEAUME, E., 3, Na Porici, Br³nn, Czecho-Slovakia. Nov. 11, 1932, No. 31981. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 21, 1934]. [Class 141.] Stiffeners for wearing-apparel are made from a sheet of material shown in the Figure,and consisting of disorderly placed fibres, or hairs, agglutinated. Each fibre or hair is stated to be "enclosed in a tubular film of an elastic material and united by the latter at the places of contact only whereby an elastic sheet with interstices is produced."
Patent GB-245108-A (GB)
Title: Improvements in and relating to optical projection
IPC: G03B21/60
Filed: 1925-12-18
Abstract: 245,108. Marsat, A. J. B. Dec. 20, 1924. [Convention date]. Drawings to Specification. Optical-projection apparatus. - A transparent body having an index of refraction different from that of air, is placed between a projection screen and the spectators to produce a relief effect in projected images: the body comprises a number of thin plates of glass connected together by Canada balsom or the like, or a vessel containing a liquid or a gas. The body may have plane parallel faces or be of prismatic form, and the prism may produce a single reflection or two reflections, the apparatus being suitably arranged. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also the use of a thick plate or prism formed in one piece of glass. This subject-matter does not appear in the Specification as accepted.