baber/WOPTO huggingface dataset:
Patent GB-1096783-A (GB)
Title: Lead titanate-zirconate piezoelectric vibrator and method for producing the same
IPC: H01L41/257
Filed: 1965-02-02
Abstract: 1,096,783. Piezoelectric elements. HITACHI SEISAKUSHO KABUSHIKI KAISHA. Feb. 2, 1965 [Feb. 5, 1964], No. 4515/65. Heading H1E. [Also in Division H4] A ceramic piezoelectric bimorph is produced by chemically reducing an intermediate or outer layer of a ceramic plate. For example, a lead titanate-zirconate sheet of 650Á thickness is heated for 15 mins. at 800 C. in hydrogen to reduce the whole sheet. The sheet is then heated for 2 hours at 650 C. in oxygen to produce surface oxidization to a depth of 150Á. The sheet is cut to size and the outer layers electrically polarized. The resistivity of the reduced layer may be about 10<SP>-1</SP> ohm/cm. cube. The method may be applied to tubes or square rods which are subsequently provided with two pairs of electrodes and used in stereophonic pick-ups. An intermediate reduced layer may also be produced by bonding together two sheets each having a reduced layer on one side only.
Patent GB-1133651-A (GB)
Title: Packaging method and machine
Inventor: SMALLEY ARTHUR
IPC: B65B67/10
Filed: 1966-02-02
Abstract: 1,133,651. Packaging apparatus. FLOWRAP Ltd. 2 May, 1967 [2 Feb., 1966], No. 4532/66. Heading B8C. A packaging device for solids and liquids comprises a rotatable member having two or more supporting surfaces which successively receive a packaging web and support it while the contents is laid upon it and an upper card or further web sealed to it. The member then rotates to present the next surface. In one form, intended to package folded shirts, the member is a rectangular frame 2 with a sloping sheet 4 forming it into upper and lower tray portions. Web engaging teeth 12, 12a are located along diagonally opposed edges. Web is drawn from a roll 11 across the member and impaled on the teeth 12 and the shirt is placed upon it. A stiff card is laid over the shirt and a heat sealing frame 5 lowered to join it to the web. A blade 13 on the frame cuts the web adjacent the teeth 12. The member is now turned through 180 degrees and the package falls to remain suspended from the teeth 12a, Fig. 4c, until the frame 5 seals the next package and severs the web. In a modification, Figs. 5a-5c (not shown), upper and lower webs are drawn from two rolls across the support surface and the shirt slid in between them. The teeth engage both webs in the same manner as in the first embodiment. In other embodiments (not shown) the teeth may be dispensed with, and some form of separate holding means (not described) relied upon to draw off the web. The tray portions may be shaped according to the article packaged.
Patent GB-525019-A (GB)
Title: Improvements relating to the transmission of alternating currents and more particularly to the modulation of carrier currents in accordance with ringing currents
IPC: H04Q1/442
Filed: 1939-02-11
Abstract: 525,019. Electromagnetic relays. LORENZ AKT.-GES., C. Feb. 11, 1939, No..4553. Convention date, Feb. 12, 1938. [Class 38 (v)] [Also in Group XL] Alternating current, especially for modulating a carrier current in accordance with ringing signals, is transmitted by means of a relay. The alternating current source T is connected to the relay coil E through a rectifier G so that the contacts e only interrupt the carrier source F once per cycle, and an impedance A which may consist of a resistance, condenser, or resistancecondenser combination is connected in parallel with the rectifier to ensure that the relay releases every cycle of the source T.
Patent GB-452008-A (GB)
Title: Improvements in and relating to transportable trunk communication electric cable installations
IPC: H02G15/12
Filed: 1935-02-12
Abstract: 452,008. Loaded cables. SHEVLIN, J. T., 15, South Street, Finsbury, London.- (Siemens & Halske Akt.-Ges. ; Siemensstadt, Berlin) Feb. 12, 1935, No. 4554. [Class 36] [See also Group XXXIX] In a transportable pupinised communication cable installation the coil spacing is made equal to the lengths into which the cable is divided for laying purposes, i.e. about 250 metres. The pupin coils are preferably arranged at the ends of the cable lengths and may be divided into sub-unit coils which are distributed over the ends of each length, the coils or sub-unit coils being mounted either in the conical end portions of the cable lengths or in the junction sleeves by which the conical end portions of adjacent cable lengths are connected together. The Figure shows a sub-unit coil 3 inserted in a pocket 2 formed in the conical end portion 1 of a cable length, the sub-unit coil 3, together with a similar sub-unit coil contained in the end of the adjacent cable length, forming the total loading for the cores 5 of one cable length. The coil 3 may be retained by a plug 6, or it may be vulcanized in position. Equalizing elements, such as condensers, may be accommodated in pockets formed in the conical end portions of the cable lengths.
Patent GB-193415-A (GB)
Title: Improvements relating to spools for cinematograph films
IPC: G03B21/32
Filed: 1923-02-16
Abstract: 193,415. Bucy, J. M. E. de. Feb. 18, 1922, [Convention date]. No Patent granted (Sealing fee not paid). Feeding webs. - A spool for winding kinema.tograph films comprises two substantially similar discs comprising central portions 1, 1', preferably of stamped aluminium and plates 2, 2<1> of thin sheet metal. The sleeve 3 forming the winding surface is secured to the disc 1 which is also centrally threaded to receive the spindle 4. The disc 1<1> has a central aperture through which the spindle can slide, and is held in position by a ring 11 carrying a pin 10 adapted to engage in a bayonet slot in the spindle. A spring 6 is interposed between the disc 1<1> and ring 11. In the Specification as open to inspection under Sect. 91 (3) (a), it is stated that the spool may also be used for telegraphic, morse, and similar tapes. This subject-matter does not appear in the Specification as accepted.
Patent GB-592896-A (GB)
Title: Improvements in and relating to rotating-wing parachutes
IPC: B64D19/02
Filed: 1945-02-23
Abstract: 592,896. Parachute harness. ISACCO, V. Feb. 23, 1945, No. 4637. [Class 141] [Also in Group XXXIII] A harness for a rotary parachute, as described for example in Specification 590,612 [Group XXXIII], comprises two portions, one of which is rigid and .bears upon or near the wearer's shoulders for supporting the parachute, while the other is flexible and engages the body of the wearer. Fig. 5 shows a construction in which the parachute is normally carried over the wearer's head by rigid tube members 30. 31 attached to the shoulders of the flexible harness 32, 36. 38. In the modification shown in Fig. 7 the parachute is normally carried in front of the pilot, and is raised to the operative position by a cable 1 attached to the aircraft. Alternatively. the parachute may be carried on the back of the wearer, Fig. 10 (not shown). An automatic locking device for the rigid harness members as shown in Fig. 9 comprises interengaging spring-loaded levers 42, 46 carried respectively by the rigid members 30 and an upper plate 11 to which the parachute is attached.
Patent GB-753861-A (GB)
Title: Method and apparatus for separating mixtures of particles into fractions according to settling rate
IPC: B03B5/34
Filed: 1954-02-17
Abstract: 753,861. Centrifugal separators; washing granular &c. STAMICARBON, N. V. Feb. 17, 1954 [Feb. 17, 1953], No. 4658/54. Classes 23 and 82(2). A mixture of solids in a liquid carrier is continuously separated into fractions in apparatus comprising an open topped vessel 10, an inlet 24 discharging tangentially into the vessel, an outlet 21 at the bottom of the vessel for discharge of the coarse or heavy fraction, and an outlet 34 coaxially placed in the upper part of the vessel for discharge of the fine or light fraction. As shown the apparatus is provided with an additional outlet 48 for the discharge of float solids. The mixture to be separated is fed into the vessel at lowpressure, the inlet pipe being provided with a control valve. The flow through the outlet 21 may be controlled by fitting different sized nozzles 22 which discharge to atmosphere. In a modification the outlet 21 is fitted with a pipe having a submerged outlet and controlled by a valve. The flows through the outlets 34, 48 are controlled by axially slidable sleeves 74, 84 and valves 38, 52. In the modification in which the discharge from the outlet 21 is submerged the outlet 34 is formed as a siphon. The horizontal parts 80 of the outlets 34, 48 are streamlined, and the lower part of the interior of the vessel is smooth and unobstructed. As an alternative to or additional to the outlet 48, the upper part of the vessel may be provided with an annular trough into which the float solids with some coarse or heavy particles are discharged. Particular uses of apparatus, according to the invention, are the separation of grain from a grain and corn cob mixture, separating young peas from a pea mixture, or classifying coal, dolomite and sand particles. Dimensions and performance figures are given in the Specification. Specification 704,874 is referred to.
Patent GB-1391033-A (GB)
Title: Pneumatic dryers
IPC: F26B17/10
Filed: 1973-01-30
Abstract: 1391033 Pneumatic dryer A MARK 30 Jan 1973 [4 Feb 1972] 4666/73 Heading F4G A pneumatic dryer for divided materials comprises a cylindrical drying chamber 1, Fig. 1, having frusto-conical ends 2, 3, and a central tubular column 11 having a closed end 11a an open end which terminates within the end 3 of the column 11 and being mounted by arms 12 within the chamber 1 so as to provide an annular space A between the chamber 1 and the column 11. The latter has a cylindrical section 11b, having a slot 11c which opens tangentially to the outer periphery of the column, a frusto-conical section 11d, a cylindrical section lie which has a tangentiallydirected slot 11f extending the full length of the section lie and being in the reverse direction to that of the slot 11c, a frusto-conical section 11g, and a cylindrical section 11h which is closed by said end 11a and is provided with a tangentiallydirected slot 11i, the latter being in a reverse direction with respect to the slot 11f. The end 3 of the chamber 1 is connected to a blower 6 having an inlet communicating with a flue 7 of a hot and dry gas supply, and the end 2 of the chamber 1 is connected by a conduit 4 to a cyclone separator 5. The hot and dry gas supply is also supplied, via the flue 7, to a blower 8 which is connected, via a conduit 9 and a tangential opening 9a Fig. 2, formed in the end 3 of the chamber 1, to said chamber, a device 10, Fig. 1, being provided so that divided material can be entrained with the gas drawn by the blower 8. A wire mesh 13 is provided for the larger particules of divided material and is located between the end 3 of the chamber 1 and the section 11b of the column 11. Valves 14, 15, 16 or 18 are provided for the blower 6, the blower 8, the conduit 9 and for a cool air supply respectively. In use material-free gas is introduced into the chamber 1 by the blower 6, a minor portion of the gas flowing through the wire mesh 13 and a major portion of the gas entering the column 11. Simultaneously the blower 8 forces gas with material suspended therein through the tangential outlet 9a. The mixture of this tangential flow with the flow from the wire mesh 13 causes a whirling motion, the direction of whirling being reversed at. the level of each of the slots 11c, 11f and 11g. The dried material is finally collected from the bottom of the separator 5, the wet and relatively cool gas being exhausted through an outlet 17 of the separator. In modifications the slot 11c, Fig. 6 (not shown), is adjusted by an angle iron 19, the annular passage provided between the open end of the section 11b, Fig. 7 (not shown), and the end 3 of the chamber 1 is adjustable by a sleeve 21, and an exhaust fan 22, Fig. 8, which replaces the blowers 6 and 8, is located so as to receive relatively cool gas and has not therefore to be constructed for use in high temperatures. (For Figures see next page.)
Patent GB-1094972-A (GB)
Title: Anion exchanger and method of preparation thereof
Inventor: LEFEVRE JEAN
IPC: C01D17/00
Filed: 1965-02-03
Abstract: An ion exchanger which fixes ions of caesium, barium, and rubidium is composed of granular particles of zirconium phosphate containing up to 60% by weight based upon the total weight of the composition of the potassium or ammonium salt of a heteropolyacid, e.g. phosphomolybdic or phosphotungstic acid.  The exchanger is prepared by the addition of phosphoric acid and an aqueous zirconium salt solution, e.g. zirconyl chloride, with stirring to an aqueous suspension of the phosphomolybdate or phosphotungstate with stirring, the zirconium ion concentration being usually lower than 18g per litre of suspension and the phosphoric acid having a concentration of 1N to 6N and being in excess, the precipitate is then filtered, washed with dilute nitric acid and dried at about 110 DEG  C.
Patent GB-175530-A (GB)
Title: Improvements relating to centrifugal pumps
IPC: F04D1/06
Filed: 1921-02-10
Abstract: 175,530. Mather & Platt, Ltd., and Sherwell, T. Y. Feb. 10, 1921. Multi-stage centrifugal pumps; casings.-A multi-stage centrifugal pump has a number of medium lift pumps in series, each having a double suction impeller a delivering into a volute d without the employment of guide-vanes. The discharge f of one section is connected to the suction g of the next by an external U-connection e. The shaft is supported by bearings i, j external to the pump and packing is provided where the shaft passes through the casing. The units are separated by sleeves n, n' to minimize leakage and similar parts are interchangeable.
Patent GB-1511622-A (GB)
Title: Method for manufacturing steel sheet by controlled temperature rolling
IPC: C21D8/02
Filed: 1976-02-09
Abstract: 1511622 Heat-treating steel sheet ITALSIDER SpA 9 Feb 1976 [10 Feb 1975] 04889/76 Heading C7A [Also in Division B3]  Steel sheets of 6-80mm thickness and characterized by a minimum yield P and of 35 Kg/mm<SP>2</SP>, minimum tensile strength 55 Kg/mm<SP>2</SP>, minimum elongation 25%, minimum impact strength 4 Kg/cm<SP>2</SP> (transverse) and 8 Kg/mm<SP>2</SP> (longitudinal), both over the range -80‹C to +100 C, are produced from a composition containing in wt, per cent. C 0À04-0À09 Mn 1À3 -2 Si 0À15-0À45 S # 0À02 P # 0À025 Nb 0À01-0À06 Al 0À005-0À05 Mo 0À1-0À45 Ni -0À4 Ce -0À05 by heating the slab to 1000-1150‹C and rolling to a thickness 2 to 5 times that finally required. The intermediate material is then cooled to 950-820‹C, and further rolled to final thickness under such conditions that the entry temperature to the final pass is 740-850‹C. The product may either be force cooled to 400‹C at #10‹C/sec., or spraycooled to 580-620‹C and then allowed to cool in air. The steel is used for forming into pipes, and also for tanks.
Patent GB-1384003-A (GB)
Title: Method and apparatus for depositing materials on surfaces of  revolution
IPC: B29C70/32
Filed: 1973-01-31
Abstract: 1384003 Depositing material OWENS-  CORNING FIBERGLAS CORP 31 Jan 1973 [3 Feb 1972] 4894/73 Heading B5A [Also in Division B2] Material, e.g. resin and chopped glass fibre, is deposited on a surface of revolution by rotating the surface about its axis of revolution and moving the depositing means over the surface in a plane containing the axis of revolution at a constant distance from the surface and at a speed which increases as it approaches said axis to a maximum when crossing said axis and decreases as it moves away from said axis. As shown in Figs. 1, 3, the apparatus comprises a pair of hemispherical formers 10 each mounted on a shaft 12 journalled on a pedestal 16 and driven by motor 18. A glass strand chopper 22 and a resin spray head 24 are mounted on leg 26 depending from arm 28. Arm 28 comprises parts 32, 34 pivoted together at motor driven hinge 36. Inner part 32 is mounted on column 30 and rotated thereon by motor 76. Hinge 36 is driven by motor 52. Part 32 is rotated until hinge 36 lies over the centre of spherical former 10 and part 34 rotated to distribute the material. The other former 10 is then similarly coated. In the embodiment of Fig. 2 (not shown), the former has a part-spherical crown portion (82) surrounded by a knuckle portion (84), the centres of curvature (86) of which lie on a radius of portion (82). The inner part (32<SP>1</SP>) of arm (28<SP>1</SP>) is pivoted over the centre of curvature of portion (82) and the hinge (36<SP>1</SP>) is mounted at the end of part (32<SP>1</SP>) so as to be placed over the centres of curvature (86) of portion (84). With hinge (36<SP>1</SP>) over centre (86), part (34<SP>1</SP>) is rotated over portion (84) until the whole arm (28<SP>1</SP>) is straight, which is then rotated about column (30<SP>1</SP>) over portion (82) and then part (34<SP>1</SP>) is rotated about portion (84) again. The movements of stepping motors 52, 76 are controlled by a tape programme. The articles cast may be the head portions for containers, tanks, &c.
Patent GB-1131604-A (GB)
Title: Improvements in or relating to electrostatic dust precipitators
IPC: B03C3/10
Filed: 1966-02-04
Abstract: 1,131,604. Electrostatic precipitators. G. A. MESSEN-JASCHIN. 4 Feb., 1966 [5 Feb., 1965], No. 4904/66. Heading B2J. An electrostatic precipitator for treating dust-laden air comprises a cylindrical collector electrode 13 surrounding a coaxially mounted, rotatable ionising electrode assembly 18 consisting of a supporting rod 19 carrying a plurality of radially disposed sharp electrodes 20 connected to a source of high voltage, the rod 19 being connected via a shaft 23 to a driving mechanism. The electrode 13 is mounted between plates 11, 16 of insulating material and is made of a rough or porous electrically conductive material such as metal wool. A thin-walled metal cylinder 14 surrounding the electrode 13 acts as a support and is earthed through a plate 15. Holes 17 are provided in the plates 11, 16 for the passage of dust-laden air and clean air respectively. The rod 18 may be mounted directly in the plates 11, 16 with lubricating rings 21 surrounding it or bearing bushes may be provided. The bottom end of the shaft rests upon a thrust bearing 24, 25 disposed on a metal rail 26 connected to a high voltage generator. In operation, any dust particles tending to deposit on the electrodes 20 are ejected by the action of centrifugal force due to rotation of the assemlbly 18. A number of collector electrodes with their associated ionising electrode assemblies may be adjacent one another and a common drive may be provided for all the ionising electrode assemblies.
Patent GB-1496533-A (GB)
Title: Oxidation of sulphide materials
IPC: C22B3/00
Filed: 1975-02-06
Abstract: 1496533 Oxidation of sulphides INCO Ltd 6 Feb 1975 [5 Nov 1974] 5122/75 Addition to 1365666 Heading C1A In the process of the Main Patent, the surfactant comprises a mixture of a rosin acid and a fatty acid, and is preferably tall oil or tall oil pitch in an amount between 0À25 and 5 kg./tonne of sulphide material.
Patent GB-717145-A (GB)
Title: Reinforced rubber and rubber-like articles
Inventor: WATTS JOHN THOMAS
Filed: 1952-02-27
Abstract: 717,145. Compound fabrics. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Jan. 28, 1953 [Feb. 27, 1952], No. 5132/52. Class 140. A rubber or rubber-like article (conveyer belts, tyres) reinforced with at least one lamina comprising material composed of a highly polymerized polymethylene terephthalate as defined below and at least one layer of another textile material is constructed so that at least one lamina of the material comprising the polymethylene terephthalate always lies between the other textile material and any surface of the article exposed to wear. "Highly polymerized polymethylene terephthalate" is defined as those polymers containing at least 80 per cent by weight of a polyester obtained from terephthalic acid or an ester-forming derivative thereof, and a glycol of formula HO(CH<2>)nOH when n is from 2 to 10. Some of the terephthalic acid may be replaced by dicarboxylic acids, such as sebacic or adipic acid. 100 per cent polyethylene terephthalate is preferred. Rubber or rubber-like materials include natural rubbers (smoke sheets, pale crepe, gutta percha and balata) and synthetic rubbers including polyvinyl chloride and polybutadiene, interpolymers of butadiene with styrene, acrylonitrile, methyl methacrylate, interpolymers of isobutylene with butadiene and isoprene, polychloroprene, interpolymers of chloroprene with acrylonitrile orcyanoprene and isocyanate modified polyesters or polyester-amides. The bonding of the rubber with the reinforcing textile material may be improved by means of adhesives such as an organic polyisocyanate or a resorcinolformaldehyde composition. The completed article possesses increased resistance to attack by the atmosphere, water, bacteria or fungi. If desired, alternate layers of polymethylene terephthalate and the other textile material (e.g. cotton, cellulose acetate or regenerated cellulose) may be used provided that a layer of polymethylene terephalate always protects the other textile material. In an example, a polyethylene terephthalate fabric and a cotton duck are each coated on both sides with a rubber composition. The fabrics are plied together with the polyethylene terephthalate making an envelope completely round the cotton fabric, and the assembly cured.
Patent GB-577778-A (GB)
Title: Improvements in and relating to reciprocating pumps of the swash-plate type
IPC: F04B1/14
Filed: 1938-02-18
Abstract: 577,778. Fluid-pressure servomotors. NASH, A. G. FRAZER-. Feb. 18, 1938, No. 5156. [Class 135] [Also in Group XXVIII] In a swash-plate pump in which the angularity of the swash - plate 18 is caused to vary in accordance with the delivery pressure of the pump, the inlet and delivery sides 2, 3 of the pump are connected respectively to the smaller and larger ends of a spring-loaded piston valve 52 in a cylinder 51, the valve 52 uncovering a port 50 to allow pressure fluid to pass into a control cylinder 48 having a piston 47 to move the swashplate in opposition to its spring 43.