baber/WOPTO huggingface dataset:
Patent GB-422868-A (GB)
Title: Improvements in electrode furnaces adapted for use as salt bath furnaces
IPC: H05B3/60
Filed: 1933-07-22
Abstract: 422,868. Electric furnaces. EVANS, O., 27, Chancery Lane, London. - (Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl- Ufer, Berlin) July 22, 1933, No. 20746. [Class 39 (iii)] In a salt bath wherein the container 1 forms one electrode, the other electrode or electrodes 5 are separated from the central part of the bath by a partition or partitions 4 which allow the salt to circulate between the central part and the electrode enclosure or enclosures. The partitions may be integral with or separate from the container and may be perforated with openings of regulatable size. One form of partition is similar to a Venetian blind. Another form consists of relatively movable adjacent perforated sheets. The partitions may rest on the bottom of the container, may hang from its top edge or may be suspended by racks secured thereto and engaging pinions for raising or lowering them. The partitions are of metal or ceramic material, and the electrodes are of iron or carbon. When two electrodes are arranged in the container a switch enables them to be arranged in series or in parallel. Polyphase arrangements are also described.
Patent GB-726388-A (GB)
Title: Method of and apparatus for removing solid or liquid particles from a gas
IPC: B04C3/00
Filed: 1953-07-27
Abstract: 726,388. Centrifugal separators. STAMICARBON N.V. July 27, 1953 [July 28, 1952], No. 20813/53. Class 23. Particles dispersed in a gas are passed through a chamber having a single axial outlet and one or more inlets which cause the dispersion to whirl within the chamber to precipitate the particles on the chamber wall, gas and precipitated particles discharging together through the outlet being subsequently separated. In the construction shown in Fig. 3, the dispersion enters the chamber 21 through an inlet 22 and the gas and particles pass through the outlet 20 to a further chamber 24 having outlets 26, 28 for the gas and particles respectively. Should the particles comprise viscous material or solids, liquid may be supplied through a pipe 25 to promote the flow of the precipitated particles along the chamber wall towards the outlet. In multi-cell separators a number of chambers are arranged in or on a partition dividing a vessel into two compartments, the chambers having inlets communicating with one compartment and outlets which discharge into the other compartment. In the multi-cell separator shown in Fig. 5D, a number of chambers 52 are arranged to divide a vessel 51 into two compartments, the dispersion entering through a conduit 49, gas leaving by a conduit 50, and the particles discharging through an outlet 55. The chambers may be made from glass or moulded materials and the inlet area should not be greater than the area of the outlet. Dimensions and performance figures are given in the Specification.
Patent GB-915526-A (GB)
Title: Improvements in or relating to marker buoys
Inventor: COOTE JACK HOWARD
IPC: B63B22/20
Filed: 1959-06-17
Abstract: 915,526. Buoys. EXPANDED RUBBER CO. Ltd. Sept. 15, 1960 [June 17, 1959], No. 20845/59. Class 68 (1). A marker buoy for attaching to a mooring buoy comprises a float provided with a tall upstanding rod and a downwardly depending counterweight, said marker buoy being linked to the mooring buoy by a flexible coupling connected at a point between the float and the lower extremity of the counterweight.
Patent GB-196529-A (GB)
Title: Improvements in tools for forming taper holes
IPC: B23B51/08
Filed: 1922-08-01
Abstract: 196,529. Simpson, A. E. Aug. 1, 1922. Addition to 144,006. Drills; reamers.-In the tool described in the parent Specification the stepped cutting-points or teeth of the reaming portion of the tool lie on a thread of varying pitch and the tops of the teeth may have flats z of varying width as shown in Fig. 2. In a modification, Fig. 6, the teeth may be reversely-inclined and their tops may be flatted at z. Other modifications of the cutting teeth are described. The teeth shown in Fig. 2 may be cut in a lathe by imparting to the sliderest a reciprocatory movement parallel to the taper side of the drill in addition to the usual screw-controlled movement, while modified teeth, Fig. 3, may be cut by maling the additional movement parallel to the line a, b.
Patent GB-516157-A (GB)
Title: A new or improved method of constructing walls and shuttering for use in connection therewith
IPC: E04B2/86
Filed: 1938-07-15
Abstract: 516,157. Casting concrete walls in situ. WILLSON, L. E. July 15, 1938, No. 21022. [Classes 20 (ii) and 20 (iv)] Shuttering for use in the construction of walls having a base or body of concrete is provided with yielding elements 2 mounted thereon in spaced relation for the purpose of temporarily supporting individual facing slabs or tiles in position on the face of the shuttering, such elements being adapted, after a concrete backing' has been cast against the facing units, to allow 'withdrawal of the shuttering and attached, elements, the facing units being left in position on the wall. The upper and lower edges of the tiles 4 shown in Figs. 1 and 2 are engaged frictionally by a series of parallel strips 2 of rubber or other resilient material. These strips 2 have integral stems 3 which are cemented in grooves in the face of the form 1, and the portions of the strips 2 which project from the face of the form are of laterally tapering crosssection so that the edges of the strips which frictionally engage the tiles 4 are relatively thin so as to permit the strips to be easily flexed for the insertion and removal of the tiles. The tiles are spaced apart between the strips 2 by transverse strips 5 which may be of wood or rubber and removably secured to the form 1 by means such as tongues 5a thereon engaging beneath the edges of the strips 2 ; alternatively, the strips 5 may be permanently secured to the form. The strips 2, 5 may be so constructed that each tile 4 is bounded by a relatively deep groove into which concrete flows when the wall is cast, and the faces of the strips 2 may be convex in order to provide a concave face to the concrete appearing between the tiles. In the modification shown in Fig. 7, a T-shaped resilient strip 42 is secured to the form 10 by nails and is adapted to engage grooves 41 in the edges of the tiles 40. In another form, the resilient strip is provided with a flat face to contact with the face of the shuttering 1, and the opposite face may be tapered at the edges which engage the edge of the tiles. The concrete is cast between the shuttering 1, which is provided with the tiles 4, and a spaced form 7 which may be in the form of a wire-screen through which the concrete is projected by pressure apparatus. If a special colour is desired for the concrete appearing at the joints between the tiles 4, a layer of concrete of the desired colour is first projected through the screen to the desired thickness, followed by the backing of the normal colour. The grooves which are left between the tiles 4 on the exposed face of the wall may be pointed with mortar of any desired colour.
Patent GB-1056904-A (GB)
Title: High pressure discharge lamps
IPC: H01J61/18
Filed: 1965-05-18
Abstract: 1,056,904. Metal-vapour lamps. SYLVANIA ELECTRIC PRODUCTS Inc. May 18, 1965 [May 28, 1964], No. 21052/65. Heading H1D. The filling of a high pressure mercury vapour lamp includes completely evaporated mercury, a halogen other than fluorine, and molybdenum, the atomic ratio of the halogen to the mercury being in the range of 0À025 to 0À85, and the molybdenum concentration in the range 5À2 x 10<SP>-7</SP> to 1À6 x 10<SP>-5</SP> gm. atoms per cm. of arc length; the filling may also include 25 torr of any of the rare gases to assist starting. The arc tube, which may be of alumina, is mounted within an outer jacket, and may include a starting electrode, a series resistor, and a heat shield. Prior to filling, the arc tube is cleaned by baking out, flushing with argon, and passing an arc between the electrodes in argon. The emission spectrum of the lamp renders it suitable for photo-copying work.
Patent GB-1009760-A (GB)
Title: A process for the preparation and spinning of solutions of polyacrylonitrile and acrylonitrile copolymers
IPC: D01F6/18
Filed: 1963-05-27
Abstract: A solution in an aqueous solvent containing zinc chloride of polyacrylonitrile or of a copolymer containing a major proportion of acrylonitrile is rendered suitable for spinning by keeping it at a temperature between 50 DEG  and 100 DEG  C., for a period ranging from a few hours to a number of days until the solution has a maturity number of between 5.5 and 9; the maturity number being the number of c.c. of water required to cloud 2g. of spinning solution diluted with 10 c.c. of 60% zinc chloride solution when agitated. Polymers exemplified are polyacrylonitrile and a copolymer of acrylonitrile and methyl methacrylate. Aqueous solutions used are solutions of zinc chloride alone and with calcium chloride. The solution is preferably weakly acid.  The solution may be spun to form fibres using baths having salt concentrations below 25% or even baths of water.  The fibres produced when stretched and subsequently shrunk have a high loop tenacity.
Patent GB-406720-A (GB)
Title: Improvements relating to rotary pumps
IPC: F04C2/04
Filed: 1932-07-27
Abstract: 406,720. Fluid-actuated valves. VARLEY PUMPS & ENGINEERING, Ltd., and VARLEY, C. H., Chase Estate, Sunbeam Road, Acton, London. July 27, 1932, No. 21244. [Class 135.] A pump comprising a gyratory piston a and a fixed abutment s, has means for supplying a quantity of fluid into the fluid being pumped just before the crescent-shaped working chamber c is opened to the discharge d. The object is to prevent backflow from the discharge d into the chamber c which is at a lower pressure than d when the points e<1>, f<1>, separate. The means comprise a spring-loaded piston k in a conduit l which communicates by way of a passage m with the suction side of the pump, which is pressed back by fluid in the chamber c entering through a port p. A quantity of fluid is thus trapped in the conduit l by the side of the piston a covering the port p. Fig. 3 shows the piston a just commencing to uncover the port p to re-admit the fluid trapped in the conduit l. A bye-pass valve v is acted upon by fluid at discharge pressure through a port d<1>. When this valve is lifted slightly off its seat fluid flows around the space S<3> to the suction side by way of a port m<4> and also acts upon a second area v<1> of the piston v. Helical grooves m<1> allow communication between the space m<2> and the back of the compensator piston k. A dashpot and piston w<1>, u, prevent chattering of the valve v. The full open position of valve v is represented by a line Z-Z, and from there the skirt s of the valve bore, diverges. The dashpot is held against the end cover h<1> by the spring t, washers w<2> and a cross-pin w<3>. In a modified arrangement of the byepass valve, oblique holes allow fluid to pass from a space inside the valve seat, when the valve is lifted slightly, to the interior of the valve and so to the suction space. Packing pieces e<1>, e4, are provided to bear against curved walls f<1>, f<4>, on the piston. The angular positions of cut-off lines for the piston and port p, and experimental results with certain back pressures are given in the specification. A groove j<1> is cut into the casting h to facilitate the machining of the conduit l. Specifications 154,261 and 217,615, [both in Class 110 (ii)], are referred to.
Patent GB-206480-A (GB)
Title: Improvements in folding seats
IPC: A47C4/18
Filed: 1923-08-22
Abstract: 206,480. Deny, J. Oct. 31, 1922, [Convention date]. Pivoting adjustments.-The pairs of pivots 8, 8<1>, 10, 10<1> of the back and arms of a folding seat are oppositely threaded screw joints set so as to serve as stops to the opening and closing movements respectively. The links 4, 4<1> supporting the front ends of the arms 3, 3<1> are pivoted to the ends of a spring 11 secured to the seat 1. The slight movement allowed by the spring facilitates the folding of the seat even though the frame members are distorted.
Patent GB-313352-A (GB)
Title: Improvements in and relating to the manufacture and production of anhydrous sodium acetate
IPC: C07C51/41
Filed: 1928-07-23
Abstract: 313,352. Courtaulds, Ltd., Adcock, F., Baguley, N. G., and Wilson, D. L. July 23, 1928. Sodium acetate.-Anhydrous sodium acetate is produced by treating practically anhydrous acetic acid with sodium or sodium amalgam. Sodium amalgam is prepared by electrolysis of brine, using a. mercury cathode, the liquid cathode material being circulated to and from a vessel containing acetic acid. Preferably the acetic acid is at a raised temperature such as 30-60‹ C., and may be circulated to and from a vessel in which it is cooled so as to separate the acetate. A beat exchanger may be employed. The separated acetate contains acetic acid in loose combination, which may be driven off by heat.
Patent GB-719675-A (GB)
Title: Improvements in or relating to rotary meters, motors, pumps and the like
IPC: G01F3/06
Filed: 1952-08-25
Abstract: 719,675. Rotary pumps. ROCKWELL MANUFACTURING CO. Aug. 25, 1952 [Sept. 24, 1951], No. 21317/52. Class 110(2) A rotary pump, meter, or motor, comprises a rotor 19 mounted on a fixed shaft 17 in a fixed housing, the rotor having vanes 44 which are rotated in timed relation with the rotor, so that a cut out portion of each vane passes a division plate 50 during rotation, by means of a control member 78 which is connected by cranks to the vane shafts and which rotates about an axis parallel to the rotor axis but displaced radially therefrom. In the construction shown a fixed shaft 17 is mounted in the end plates 11, 14 of a motor housing 10 and carries ball bearing assemblies 20, 21 for the cylindrical rotor 19. The end plates 26, 28, of the rotor each carry four ball bearing assemblies 36 for the cranked ends of shafts 42, each of which is secured to or integrally formed with a semicylindrical vane 44. The vanes move in recesses in the rotor and, when extended, move with a close rotating fit within the housing 10. To one end of each shaft 42 is pinned a crank 66 carrying a bushing 72 into which extends a pin 80 extending from a plate 78, the latter being mounted by a ball bearing assembly 7 on a boss 74 on the end plate 11. The boss 74 has its axis eccentrically disposed with respect to the axis of the shaft 17, the distance a between the axes being equal to the distance b between the rotational axes of the pins 80 and the shafts 42. By this means the vanes constantly face the same direction when the device is in use. The device may be geared at 88 to a revolution counter for indicating the quantity of fluid passing through the meter.
Patent GB-835752-A (GB)
Title: Diolefine polymers and process for preparing same
Inventor: GIULIO NATTA
IPC: C08F4/68
Filed: 1956-07-10
Abstract: Diolefines are polymerized in the presence of a catalyst obtained by reacting an organometallic compound of a metal of Group I, II or III of the Periodic Table with a compound of a transition metal of Group IV, V or VI in which the metal is bound to an organic radical through an oxygen atom.  The first compound is preferably triethyl aluminium, the second an alkoxide or acetylacetonate of titanium, vanadium, chromium or molybdenum which is preferably soluble in any solvent present.  The two components may be dissolved separately in a hydrocarbon and then mixed.  Specifications 810,023 and 834,554 are referred to.ALSO:Linear polymers are prepared from conjugated diolefins having at least one vinyl group by polymerizing in the presence of a catalyst obtained by reacting an organo-metallic compound of a metal of Group I, II or III of the Periodic Table with a compound of a transition metal of Group IV, V or VI in which the metal is bound to an organic radical through an oxygen atom.  The transition metal compound is preferably soluble in any solvent present and may be an alkoxide or acetyl-acetonate of titanium, chromium, vanadium or molybdenum.  The organo-metallic compound may be triethyl aluminium.  The polymerization is preferably carried out in a hydrocarbon solvent and the catalyst is prepared by suspending or dissolving the two components in separate portions of the hydrocarbon and then mixing.  The monomer may be added to the suspension or solution of the organo-metallic compound before adding the transition metal compound or may be added to the composite catalyst.  Temperatures of -80 DEG  to 150 DEG  C. may be used. Monomers include butadiene and isoprene.  Butadiene yields a mixture of an amorphous and a crystalline polymer which may be separated by dissolving the latter in solvents such as acetone, ether, heptane and toluene.  The butadiene polymer has 1,2-enchainment and the isoprene polymer, which is amorphous, 3,4-enchainment.  The polymers may be vulcanized.  The crystalline polymers can be extruded into filaments and moulded or calendered at temperatures slightly below the melting temperature to obtain sheets with a plane orientation.  Oriented films can be obtained by cold-drawing in two directions unoriented sheets obtained by moulding or calendering at above the melting temperature.  The amorphous polymers are elastomeric.  Specifications 810,023 and 834,554 are referred to.
Patent GB-426552-A (GB)
Title: Improvements in and relating to neon-sign layouts
IPC: H01R33/02
Filed: 1933-09-30
Abstract: 426,552. Discharge lamps. WINGRAVE, F. H., Boundary House, Potters Bar, Middlesex. Sept. 30, 1933, No. 21429. [Class 39 (i)] An electric discharge tube shaped as a sign is supported on an insulating panel P by a conducting member A<1> extending through an earth plate P<1> and connected by a sleeve or other detachable connection B to a conducting member A which is secured to the electrode chamber E and connected electrically to an electrode. An insulating sleeve C, supported by a spring Z, may be depressed to permit access to the sleeve B from the front of the plate P<1>. The Provisional Specification describes an arrangement in which grooved or V-shaped members are provided to support the viewed portions of the tube.
Patent GB-856458-A (GB)
Title: Antioxidant composition and its use
IPC: C10L1/18
Filed: 1958-07-04
Abstract: An antioxidant composition comprising 65-80% of 2, 6-di-tert butyl phenol, 10-15% of 2, 4, 6-tri-tert butyl phenol and 25-5% of 2-tert butyl phenol, the proportions being by weight, may be added to natural or synthetic rubber, polyethylene or polypropylene. Specification 798,438 is referred to.ALSO:An antioxidant composition comprises 65-80 % of 2, 6-di-tert butyl phenol, 10-15 % of 2, 4, 6-tri-tert. butyl phenol and 25-5 % of 2-tert. butyl phenol, the proportions being by weight.  A suitable composition of this type may be prepared by alkylation of phenol with isobutylene at elevated temperature and pressure in the presence of an aluminium phenoxide catalyst.  The composition may be added to gasoline, diesel fuel, mineral lubricating oil, lubricating grease, petroleum wax, rubber, synthetic rubber, polyethylene, polypropylene, and edible fats and oils. Specification 798,438 is referred to.ALSO:An antioxidant composition comprising 65-80% of 2,6-di-tert butyl phenol, 10-15% of 2,4,6-tri-tert. butyl phenol and 25-5% of 2-tert. butyl phenol, the proportions being by weight, may be added to gasoline, diesel fuel, mineral lubricating oil, lubricating grease, petroleum wax or edible fats or oils. Gasolines, to which the antioxidant composition may be added, may comprise straight-run components, thermally or catalytically cracked stocks, polymer blending stock, reformed gasoline, butane or pentane and may also comprise additional ingredients such as auxiliary solvents, organo-lead antiknock agents (e.g. lead tetra - alkyls), organic halogen - containing scavengers (e.g. alkylene dihalides, other halogen - substituted aliphatic or aromatic hydrocarbons, b ,b 1-dibromo-diisopropyl ether, b ,b 1 - dichlorodiethyl ether, ethyl - a  - bromo - acetate, 1,1 - dichloro - 1 - nitroethane and 1 - bromo-3-hydroxypropane) and organic phosphorus compounds (e.g. phosphate esters, tri-(b  - chloroprophyl) thionophosphate, di - xylyl phosphoramidate and trialkyl phosphines). Specification 798,438 is referred to.ALSO:An antioxidant composition comprising 65-80% of 2,6-di-tert butyl phenol, 10-15% of 2,4,6, - tri - tert. butyl phenol and 25-5% of 2-tert. butyl phenol, the proportions being by weight may be added to edible fats and oils as incorporated in the petroleum waxes used on paper coatings for food containers and food wrappings.  Specification 798,438 is referred to.
Patent GB-615496-A (GB)
Title: Improvements relating to electric motor control arrangements especially applicable to electric traction
IPC: H02P7/282
Filed: 1946-07-18
Abstract: 615,496. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. July 18, 1946, No. 21487. Convention date, Oct. 14, 1940. [Class 38 (iii)] Regenerative braking.-A compounded motor A for traction or other purposes has a preponderating series field winding B and a light shunt field winding C with means, such as a rheostat G1, G2 ; H1, H2, for gradually reversing the shunt excitation so that, at maximum speed, the motor is differentially compounded and rectifier means D1, wholly or partially to prevent the passage of regenerated current through the series field winding. Alternative rectifier arrangements are described.
Patent GB-985430-A (GB)
Title: Thermoelectric generator
IPC: H01L35/00
Filed: 1961-06-14
Abstract: 985,430. Thermoelectric devices. MINNESOTA MINING & MANUFACTURING CO. June 14, 1961 [June 14, 1960], No. 21495/61. Heading H1K. A thermoelectric generator comprises a pair of thermo elements located in the annular space between a tube and a ring, the elements being clamped between the ring and the tube by biasing means located on the opposite side to that containing the elements. Fig. 2 shows a pair of arcuate shaped thermoelectric elements 12 and 13 held in the space between an inner tube 11 and an outer ring 14 of iron alloy which constitutes the hot thermo-junction connecting the elements 12 and 13. The inner surfaces of each of these pairs of elements is connected to the inner surface of an element of the next adjacent pair by means of copper member 15, so that all the elements are connected in series. A resilient ring 17 having an insulating oxide coating, is provided for each pair of elements 12, 13 and lies between member 15 and tube 11. On the opposite side, a resilient member 19 engages an insulating bushing 18 to exert pressure on ring 17 so that it effectively presses contact members 15 and 14 against the thermoelements 12, 13. The thermo-electric elements may consist of P and N type lead telluride alloys. The assembly may be mounted in a tube 22 and Fig. 4 shows the resulting thermoelectric generator 10 adapted for heating by burner 30. The output of the generator is supplied to a motor 31 which operates a pump 32 to drive a water or other medium through heat exchanger 35 to the cold junction inner tube 11 of the generator and back to the pump via conduit 38. Motor 31 also operates blower 33 which forces air through exchanger 35 to the warm air outlet 36.
Patent GB-256068-A (GB)
Title: Improvements in the manufacture and production of hydroxychlor-anthraquinone
IPC: C07C46/00
Filed: 1925-08-27
Abstract: 256,068. Dodd, H., Sprent, W. C., and United Alkali Co., Ltd. Aug. 27, 1925. Chlorhydroxyanthraquinone free from hydroxyanthraquinone is produced by condensation of phthalic anhydride and o- or p-chlorphenol in sulphuric acid without the use of either boric acid or aluminium chloride, the temperature not appreciably exceeding 200‹ C. Specification 245,584 is referred to.