baber/WOPTO huggingface dataset:
Patent GB-1210235-A (GB)
Title: Improvements in or relating to electric motors
Inventor: SKOYLES DEREK ROBERT
IPC: G01P3/495
Filed: 1967-05-16
Abstract: 1,210,235. Induction motors. MULLARD Ltd. 29 Dec., 1967 [16 May, 1967], No. 22689/67. Heading H2A. A disc rotor split-phase or shaded pole eddy current motor has main and auxiliary stator coils located around the motor axis and main and auxiliary magnetic circuits located on both sides of the rotor, each magnetic circuit having at least four polepieces located around the axis and each pole of each circuit being positioned between two adjacent poles of the other circuit. The coils may be located on the same side of the rotor R, Fig. 6, or on opposite sides, Fig. 7 (only one side of rotor shown), or each may be split into two parts with one part on each side of the rotor. The coils are fed with out of phase currents or one may be shortcircuited to form a shading coil. The polepieces are formed from stamped or pressed sheet metal and two adjacent poles 2, 3 of the main and auxiliary circuits may be formed from a single stamping which may be continuous or may have a radial slot to separate the poles. The two halves of the stator may be of the same construction or the side opposite the coils (where the coils are on the same side of the rotor) may be formed of a single stamping having a plurality of radial slots to form the polepieces. Where the coils are on opposite sides of the rotor, Fig. 7, each stator half may include a toothed ring T, the teeth being located opposite the polepieces of the other stator half to act as return paths for the flux. The motor is said to be of use as a tachometer.
Patent GB-830287-A (GB)
Title: Improvements in or relating to flat wire conveyor belts
IPC: B65G17/08
Filed: 1957-07-19
Abstract: 830,287. Endless conveyer bands. PITT, J. H. J. Nov. 21, 1957 [July 19, 1957], No. 22866/57. Class 78 (1). An endless conveying band is formed of transverse wave-like strips 20 and transverse rods 6 passing through holes 7 formed in the strips, the strips being formed at 3A, 4A with curved bearing surfaces engaging the rods. The holes 7 are formed larger than necessary so that the rods are capable of a small movement permitting the rods, at any moment, to engage only the strips which lead in the direction of movement of the band.
Patent GB-974168-A (GB)
Title: Manufacture of 2-ª-methoxyethylpyridine
Inventor: JONES WILLIAM GLYNNE MOSS
IPC: C07D498/04
Filed: 1961-06-26
Abstract: 2-b -Methoxyethylpyridine is prepared by heating a 2, 3-dihydro-4-H-oxazino (2, 3-a)-pyridinium salt (e.g. a halide or the acetate) with methanol in the presence of a base.  The halide starting materials are obtained by heating 2-g -hydroxypropylpyridine-N-oxide with a hydrohalic acid.  According to the Provisional Specification, the quaternary salt may be heated with an alkali metal methoxide alone.  Reference has been directed by the Comptroller to Specification 889,748.
Patent GB-1256172-A (GB)
Title: Production of 3-ketobutanol-(1)
IPC: C07C49/17
Filed: 1969-05-06
Abstract: 1,256,172. Production of 3-ketobutanol-(1). BADISCHE ANILIN- & SODA-FABRIK A.G. 6 May, 1969 [7 May, 1968], No. 23020/69. Addition to 1,191,006. Heading C2C. 3-Ketobutanol-(l) is prepared by reacting acetone with aqueous formaldehyde solution at superatmospheric pressure at a temperature above 210‹ up to 300‹ C. The reaction is preferably conducted at 220‹ to 280‹ C. at a pressure of 30-500 atmospheres in the presence of an alkaline catalyst such as a salt of an alkali metal with a carboxylic acid. Preferably 5 to 7 moles of acetone are used per mole of formaldehyde.
Patent GB-517692-A (GB)
Title: Process for the manufacture of ª‰-indole acetic acids
IPC: C07D209/18
Filed: 1938-08-04
Abstract: 517,692. Indole derivatives. I.G. FARBENINDUSTRIE AKT.-GES. Aug. 4, 1938, Nos. 23094 and 23095. Convention dates, Aug. 4, 1937 and July 8, 1938. [Class 2 (iii)] #-Indole acetic acid and its substitution derivatives are prepared by condensing indoles which are unsubstituted in the #-position with formaldehyde and hydrocyanic acid or a salt thereof and saponifying the resulting #-nitrile to the corresponding carboxylic acid. It is also possible to obtain the carboxylic acids in one step. Specified substituents which may be present in the benzene nucleus of the parent indole are alkyl, alkoxy or aryl groups and halogen atoms ; the substituents in the 4- and 5- positions may also form a ring system as in naphthindole. Substituents which may be present in the pyrrole ring in alpha-position are alkyl, aralkyl and aryl groups (which may themselves be substitutedby hydroxyl or ether groups) and halogen atoms. The nitrogen atom may also bear a substituent, such as an alkyl or aryl group. Polymers'of formaldehydemay be used instead of formaldehyde as the reagent. The reaction may be carried out in the presence or absence of solvents, of which are mentioned water, methanol, ethanol, n-butanol and acetone. In the examples, indole, alpha-phenylindole, alphamethylindole and 2:5-dimethylindole, condensed with formaldehyde and potassium cyanide and saponified, yield respectively #-indole acetic acid, alpha-pheynl-#-indole acetic acid, alpha-methyl-#- indole acetic acid and 2:5-dimethyl-3-indole acetic acid. Other specified starting materials are 2:5-diethylindole, N-methylindole, and 6- chlorindole. The products are useful for promoting plant growth. The Specification as open to inspection under Sect. 91 also indicates the use of N-etheylindole, N-phenylindole, alpha-ethylindole, alpha-butylindole, alpha-tolylindole and 6-chlorindole as starting materials. This subject-matter does not appear in the Specification as accepted.
Patent GB-1367197-A (GB)
Title: Advanced geometry main rotor blade
IPC: B64C27/46
Filed: 1972-05-17
Abstract: 1367197 Rotor blade; propellers TEXTRON Inc 17 May 1972 [17 May 1971 (2)] 23118/72 Headings B7V and B7W A blade for a convertiplane prop rotor has a unitary structure and its twist and camber vary non-linearly from root to tip, the twist angle between blade chord and a reference plane decreasing linearly from root to an intermediate point and decreasing less severely from that point to the tip, curve 24, Fig. 3, and camber decreasing from the root to an intermediate point and increasing from that point to the tip, curve 25. As a result aerodynamic twist, curve 26, decreases from root to tip, the major change being in the inboard 40% of span. The blade comprises a spar 30 formed from channels 33, 34, 35, and a panel 40, and a trailing section 31 having upper and lower skins 50, 51 with honeycomb units adhesively secured thereto, with the cells substantially perpendicular to the blade chord. The parts are secured by bonding with heat-setting adhesive and as pressure is applied during manufacture the honeycomb units intersect. A fitting (70), Fig. 10 (not shown), in an extension (60) of the spar 30 receives, on needle bearings, a spindle (71) of a hub.
Patent GB-316781-A (GB)
Title: An improved filter or strainer for wells
IPC: E03B3/20
Filed: 1928-08-10
Abstract: 316,781. Laubner, O. Aug. 10, 1928. Wells.-A unit for a well filter or strainer comprises a number of superposed bell-shaped elements which are formed in one piece or formed separately and joined. As shown, bells c are connected by a rib b which projects both inwardly and outwardly, the inward projection forming a guide for a cleaning brush or the like, and the outward projection having grooves h to receive the rods. End members dare screw-threaded for connection to adjacent units. A bottom plate f is shown screwed on the end member e. Each bell may be tapered outwardly, and the end may be bent outwards as indicated by broken lines. If of ceramic material, separately formed bells can be fused together, the contact surfaces being painted over with clay water or slip before firing. If of cast iron or other metal, the bells may be cast, welded, or soldered together.
Patent GB-360034-A (GB)
Title: Improvements in the manufacture of coated papers
IPC: D21H19/38
Filed: 1930-08-01
Abstract: 360,034. Coated paper. BAILEY, F. W., College of Technology, CRUNDALL, S. F.W., SPENCE, H., and SPENCE & SONS, Ltd., P., National Buildings, St. Mary's Parsonage, both in Manchester. Aug. 1, 1930, No. 23180. [Classes 96 and 140.] Finely divided anhydrous calcium sulphate of close texture which may be prepared as described in Specification 319,228, [Class 1 (iii), Oxides &c., Metallic], is used for coating paper. Casein, gelatine, &c. may be used as adhesives, and the coated paper may be calendered, or brushed and calendered. In an example, the pigment of a coating mixture comprises equal parts of china clay and anhydrous calcium sulphate.
Patent GB-221642-A (GB)
Title: A new or improved apparatus for moistening and mixing clay or other materials
IPC: B28C1/22
Filed: 1923-09-17
Abstract: 221,642. Whitehouse, D., and Steel Belt Conveyors, Ltd. Sept. 17, 1923. Continuous-discharge apparatus with moving containers. - Apparatus for moistening and mixing clay &c. comprises an endless band conveyer on which the clay &c. is carried past moistening devices and means for turning the clay over. The conveyer band 1 lies within a wooden trough 2 made with longitudinal gaps for the escape of water, and water is sprayed from nozzles supplied with water by branches 7 trom a main pipe 6, and with air bv branches 10 from a main 9. The clav is turned over by blades 13 mounted on cross pieces 15 and arranged to turn the clay inwards and outwards alternately. The blades may be adjustable, and the jets may be replaced by sprinklers. The air supply pipes may be dispensed with.
Patent GB-600469-A (GB)
Title: Improvements in, or relating to chucks
IPC: B23B31/175
Filed: 1944-11-23
Abstract: 600,469. Chucks. EATON, J. Nov. 23, 1944, No. 23280. [Class 83 (iii)] A toggle-operated chuck comprises radial jaws actuated by toggles 9, 12. The free end of the toggles are mounted on spring arms 15 on a plunger 16 secured to an operating rod 20. Movement of the rod 20 to the left closes the jaws until the links 12 are normal to the axis and a heel 18 engages a wedge 24. Adjustment of the latter by a bush 22 or a spring varies the radial position of pins 13 to adjust the jaw openings. '  Chuck.-operating mechanism.-The rod 20 mav be controlled by a fluid cylinder on the headstock.
Patent GB-879284-A (GB)
Title: Polymerization process for polyolefins
IPC: C08F2/00
Filed: 1960-07-05
Abstract: An alpha-olefin having from 2-8 carbon atoms per molecule is polymerized in the presence of a catalyst comprising at least one compound of a multivalent transition metal and at least one co-catalyst reducing agent at above 120 DEG C., in the presence of an inert diluent in controlled quantity capable of maintaining at all times the reaction mixture as a heterogeneous hydrocarbon diluent phase-liquid polymer phase mixture and maintaining from 7%-20% concentration of polymerized alpha-olefin in the reaction mixture and from 0,1%-10% of the monomers in the hydrocarbon diluent phase. Specified olefins are ethylene, propylene, butene-1, their copolymers amongst each other, higher olefins and copolymers with divinyl benzene, allene, dimethallyl, isopentene, styrene, cyclopentene, conjugated dienes and trienes, unconjugated dienes, acetylenes, chloroolefins, vinyl esters, vinyl carbazole, vinyl pyridine, acrylonitrile, and others.  Long lists of the usual reducing agents and transition metal compounds are given.  Saturated aliphatic and aromatic hydrocarbons are used as diluents.
Patent GB-734911-A (GB)
Title: Improvements in or relating to telephone systems
Inventor: IRELAND ERIC BERTRAM
IPC: H04Q1/24
Filed: 1953-08-26
Abstract: 734,911. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. May 26, 1954 [Aug. 26, 1953], No. 23509/53. Class 40 (4). The group selector disclosed in Specification 588,790 in which the pre-operated test relays HB, HA hold over the test contacts of busy outlets is modified by the provision of capacitors QX, QZ earthed through resistors YX, YZ to prevent release of the test relays if the wipers overshoot the bank contacts and avoid possible switch-through to a busy outlet.
Patent GB-170155-A (GB)
Title: Manufacture of new soluble chromium lakes of azodyes
Filed: 1920-08-11
Abstract: Soluble chromium compounds of the monoazo dyes from diazotized anthranilic acid or its derivatives not containing hydroxyl groups and b -naphthylamine sulphonic acids, or of those from diazotized anthranilic sulphonic acids and b -naphthylamine, are obtained by boiling the dyes with chromium compounds.  In an example, diazotized anthranilic acid is coupled with 2-naphthylamine-7-sulphonic acid, the dyestuff salted out, boiled with chromium fluoride and water, and the chromium compound salted out; the anthanilic acid may be replaced by its chlor- and nitro-derivatives such as C6H3(COOH) : (NH2) : Cl= 1 : 2 : 4, C6H3(COOH) : (NH2) : (NO2) = 1 : 2 : 5 or 1 : 2 : 4; and the 2 : 7 - naphthylaminesulphonic acid can be replaced by 2-naphthylamine di- or tri-sulphonic acids; further, sulphoanthranilic acids such as C6H3(COOH) : (NH2) : (SO3H) = 1 : 2 : 5 or 1 : 2 : 4 can be coupled with 2-naphthylamine.  Lakes.-Barium, calcium, and aluminium lakes can be prepared from the above-described chromium compounds; the compound of the example yields pure reddish-violet lakes fast to water, lime, and light.
Patent GB-337423-A (GB)
Title: Improvements in or relating to automatic switches for use in telephone or like systems
IPC: H01H67/16
Filed: 1929-07-31
Abstract: 337,423. Automatic Telephone Manufacturing Co., Ltd., and Jackson, H. July 31, 1929. Automatic exchange selectors.-Rotary offnormal contacts 11 of a two-directional selector are operated on the first energization of the rotary magnet by the engagement of the armature 21 with a projection on a pivoted member 18, the springs being maintained operated independently of the rotary magnet by the engagement of a projecting tongue on the member 18 with a slot 27 in a flat spring 25. The member 18 and springs 11 are restored to normal when the release magnet is energized by the engagement of the striking pin 29 with the free end of the spring 25. The bracket 10 carrying the springs 11 and member 18 is adjustable on the switch frame by means of a screw and slot fixing 16.
Patent GB-257751-A (GB)
Title: Improvements in and connected with electric resistances
Filed: 1925-09-22
Abstract: 257,751. English Electric Co., Ltd., and Andrews, H. H. Sept. 22, 1925. Resistances. - An electric resistance is cooled by a current of gas or liquid directed over it by a fan or pump driven by an electric motor, the voltage applied to which depends on the current passing through the resistance, so that as the current in the resistance increases the speed of the cooling current increases also. In the arrangement shown the resistance 3, which may be a braking rheostat for an electric locomotive, is cooled by a current of air produced by a fan driven by a series wound motor 1, the current for which is obtained from tappings 5, 6 taken from the resistance 3.
Patent GB-1073087-A (GB)
Title: Improvements in and relating to counter structures
IPC: A47F9/00
Filed: 1964-06-10
Abstract: 1,073,087. Shop counters. INDUSTRIAL & MERCHANDISING SERVICES S.A. June 10, 1964 [June 1, 1964], No. 24063/64. Heading A4T. A while-you-wait, service counter is formed as a single unit and includes vertical partitions 4 carrying counter shelves 6, customer seats 12 on one side of the partitions 4, and a plurality of posts 2 mounted on base plates 3 at the other side of the partitions 4, the posts 2 carrying machines 1 in a position such that the operator faces the customer when using the machine. The shelves 6 carry vertical screen panels 7. The partitions 4 are secured at 9 to the posts 2. Struts 16 connect the post bases 3 to the legs 15 of the seats 12. A post 2 may carry an extension element (17, Fig. 4) to support a second machine (1<SP>1</SP>). Partitions may be provided between adjacent machines.
Patent GB-160437-A (GB)
Title: Apparatus for loading and unloading vehicles
IPC: B60P1/44
Filed: 1920-08-18
Abstract: 160,437. Vonnez, E., and Jaquemot, C. March 15, 1920, [Convention date]. Vehicle fittings and attachments.-Comprises constructions of apparatus for loading and unloading vehicles of the type in which a movable bridge or a bridge with a movable part is brought into suitable positions for loading and unloading by means of a winch mounted on the chassis. In all these constructions the bringing of the bridge to its normal position on the chassis automatically disconnects the driving-gear of the winch. In one construction, a body or bridge 1, Fig. 1, is raised by a winch 17 from the loading position on the ground and, by continued winding, is tilted and drawn over pairs of flanged rollers 10 mounted on the chassis. The rear roller shaft is arranged to oscillate, to facilitate the manoeuvring of the body, and the latter is formed with a rounded front end to pass over the rollers readily. The winch may be power-driven from the engine, in the case of motor vehicles, and may be stopped automatically when a projection on the body strikes a stop 27 and thus sets a system of levers 26, Fig. 4, in operation to move a rod 34 axially. In the stopping position a bolt 35 registers with an eye 37 to secure the body in position. In a modified construction, only the rear part 40, Fig. 5, of the body is movable, and is rotated by the winch about the axis 42 between the dotted and full line positions. The vehicle is loaded by repeated operations of the movable part, the successive loads, when raised, being pushed by hand from the movable to the fixed part of the body. Fig. 7 shows a modification in which the underside of the base of the removable body is inclined upwardly towards the front of the vehicle. Hooks 68 on the body engage the ends of the lengthened rear shaft 61 and form pivots about which the body tilts into the position shown in dotted lines. In the form illustrated, the body is fitted with rails 70 carried on a turntable. Segmental supports 74 for holding special loads can be adjusted slidably on the rails 70 and fixed in adjusted position by bolts 76. The rear ends of the vehicles may be fitted with telescopic supports for use during the loading operation. The winch is stopped or reversed by the axial movement of a shaft 104, Fig. 10, which is identical with the rod 34, Fig. 4. The axial movement of this shaft controls two claw clutches 97, 98 which can be engaged alternatively to clutch members 85, 87 which drive directly or through reversing gear 92 a wheel 104 geared to the winch. Specification 160,436, [Class 103 (iv), Railway &c. vehicles, Body details &c. of], is referred to. In the Specification as open to inspection under Sect. 91 (3) (a) it is stated that the winch drum is moved laterally to maintain the line of pull on the cable parallel to the longitudinal axis of the vehicle, by forming a helical groove 22, Fig. 12 (Cancelled), on the surface of the drum and arranging a fixed spring-pressed ball 20 to contact therewith. This subject-matter does not appear in the Specification as accepted.
Patent GB-632839-A (GB)
Title: Improvements in or relating to processes and apparatus for removing lead from tin
IPC: C22B25/00
Filed: 1947-09-01
Abstract: 632,839. Refining tin. AMERICAN METAL CO., Ltd. Sept. 1, 1947, No. 24088. Convention date, March 20, 1941. [Class 82(i)] Lead is removed as an impurity from tin by forming a dross of stannous chloride and lead chloride on a tin-lead bath, maintaining the stannous chloride in the liquid phase on the bath, drawing off the dross and distilling therefrom the stannous chloride which is returned to the bath for the formation of further dross from any lead impurity remaining. As shown, a molten bath b of tin with lead as impurity is maintained molten at a temperature of 470‹-600‹F. and has on the surface a layer d of stannous chloride and lead chloride dross, formed by the addition of stannous chloride through a funnel 15 or by the addition of chlorine gas through a pipe 17, which is removed by a dross trap 8 and conduit 9 to a retort 10. The retort is maintained at a temperature sufficient to distil off the stannous chloride which is returned by the pipe 12 to the kettle but not sufficient to distil off the lead chloride. A stirrer 7 driven by a motor 4 agitates the bath. When the lead has been removed from the bath the temperature of the retort may be raised to 1500‹F. to remove all the stannous chloride which may be smelted to obtain tin. The residue of lead chloride in the retort may be removed as and when necessary.
Patent GB-337788-A (GB)
Title: A new or improved device for charting the limits of the scotomatous areas of the eyes
IPC: A61B3/024
Filed: 1929-08-07
Abstract: 337,788. Courlander, H. Aug. 7, 1929. Sight-testing apparatus. - A scotometer for charting the limits of the scotomatous areas of the eyes is constructed in such a manner as to enable the examiner to be sure that the patient's eye is fixed on the fixation point during, the marking out of the areas by arranging for fixation of a patient's eye by an eye of the examiner from the opposite side of the chart. A frame 12 holds the chart 2 which is provided with a small aperture 3 at about the middle point. The frame is adjustably supported from a rod 10 on which is situated two rests 16, 17 for the examiner's and patient's foreheads respectively. The examiner's eye thus constitutes the fixation point for the eye of the patient. Charting is effected by means of the pointer 24 on the spring frame 20 which embraces the chart 2, the knob 21 constituting the visible target for the patient, being opposite the pointer 24, so that areas 4, 5, may be plotted for each eye.
Patent GB-518179-A (GB)
Title: Improvements in ingot moulds and ingots and method of producing ingots
IPC: B22D7/06
Filed: 1938-08-16
Abstract: 518,179. Moulds; casting' processes. GATHMANN, E. Aug. 16, 1938, No. 24179., Convention date, June 1, 1938. [Class 83 (i)] A mould for casting steel or non- ferrous ingots has upwardly diverging side walls, the 'divergency of at least two walls of the lower portion 3, which comprises between 20 per cent to 50 per cent of the total height of the mould chamber, being greater than that of the upper portion of the walls. In the form shown, the mould is of approximately square cross section and if the maximum diameter is twenty inches then the lower portion 3 should have about four times the divergency of the intermediate portion 4. An upper portion 5 comprising from 5 per cent to 20 per cent of the total height is of substantially uniform cross section. Corrugations R, S extend downwardly from the top of the mould and merge into the lower portion 3. the bottom of the mould comprises a slightly dished central portion 2a connected to the walls 3 by a concave portion 2b having a radius of between 5 per cent and 20 per cent of the maximum diameter of the mould cross section. In order to avoid erosion of the portion 3 when casting, molten metal is poured in slowly until the lower portion is filled. Specification 505,444 is referred to.