baber/WOPTO huggingface dataset:
Patent GB-869223-A (GB)
Title: Improved method of refrigeration and apparatus therefor
IPC: F25B1/00
Filed: 1959-07-10
Abstract: 869,223. Refrigerating. CLEVELAND PNEUMATIC INDUSTRIES Inc. July 10, 1959 [July 11, 1958], No. 23840/59. Class 29 [Also in Group XXVIII] Liquid e.g. acetone, is compressed by compressor 10, cooled in exchanger 11, expanded in the compression space of the compressor so as to assist the driving motor, thereafter heated in exchanger 12 thereby effecting cooling and returned to the compressor. A reservoir 21 which may be closed or open to atmosphere is provided on the low pressure side of the system. The compressor 10 consists of a casing 23 in which is a driven shaft formed with a crank 24 and provided with a flywheel 13. Pivotally mounted on the crank is one end 37 of a piston 32 working in a cylinder 28 the head of which pivots on a transverse pin 26. The compression space 36 communicates through a passage 41 in the cylinder head, a fan-shaped radial passage 39 in the pin and an axial passage 42 in the pin with a surface 43. The end of passage 42 at surface 43 is put into one of connections 16-19 by means of two spool valves 51, 52 reciprocated at the appropriate times against spring pressure by cams 68, 73 on cam shaft 67 making one revolution for every two of the drive shaft. The valve action is as follows. All valves being closed, the piston advances on a compression stroke after 5% of which the compression space is put into communication with connection 16 leading to the cooler 11 and the compressed heated liquid is discharged into the cooler. When the piston withdraws, the compression space is put into communication with connection 17 leading from the cooler and the high pressure cool liquid expands into space 36. On the next forward stroke, space 36 is in communication with connection 18 leading to heater 12 and the cold low pressure liquid is displaced thereinto. On withdrawal of the piston, space 36 is in communication with connection 19 leading from heater 12 and low pressure liquid is displaced into the space for the start of the next compression stroke. Reversing valves may be provided so that exchanger 12 can be used for heating or cooling at will.
Patent GB-504824-A (GB)
Title: Improvements in or relating to reverberatory furnaces
IPC: F27B9/20
Filed: 1937-08-31
Abstract: 504,824. Gaseous - - fuel furnaces. OESTERREICHISCH AMERIKANISCHE MAGNESIT AKT.-GES. Aug. 31, 1937, No. 23842. Convention date, Jan. 9. [Class 51 (i)] In a reverberatory furnace the fuel and air for combustion entering through the ports 1, 2 are intimately mixed by introducing compressed air or gas into the gas stream through pipes 4 having nozzles directed towards the outlet ports. The nozzles 6 are arranged as shown in Fig. 3 at right-angles to the axis of the pipe 4 which is provided with a jacket for the circulation of cooling liquid. The pipes are provided with a hemispherical bearing member 12 which rests upon a seat 13 and an adjustable collar 10 provided with a handle 11, so that the nozzles may be adjusted in height, tilted and turned in the direction of flow of the gas stream. The pipes 4 may be arranged in the central longitudinal plane of the furnace or in planes on both sides thereof.
Patent GB-891472-A (GB)
Title: Improved process for the production of high molecular weight copolymers
IPC: C08F210/00
Filed: 1958-07-24
Abstract: Linear, high molecular weight, unbranched, amorphous copolymers of olefins of formula CH2=CHR where R is a hydrogen atom or an alkyl group are prepared using as catalyst the compound obtained by contacting a hydrocarbon-insoluble solid compound of a transition metal of Group IVa, Va or VIa with a metal alkyl compound of a Group I or III metal, the alkyl group containing at least 4 carbon atoms. Specified olefins are ethylene-propylene and ethylenebutene-1. Specified metal alkyls are the triisobutyl, trihexyl and trioctyl aluminiums.  Solvents may be employed, e.g. n-heptane.  Continuous feed and discharge together with recycling of the liquid reaction phase may take place. Methanol is used to stop the reaction. Specifications 856,733, 856,736 and 856,737 are referred to.
Patent GB-645327-A (GB)
Title: Automatic screw and bolt turning machine
IPC: B23Q7/10
Filed: 1948-09-13
Abstract: 645,327. Lathes. B.E.V.I. BULLONERIA E VITERIA ITALIANA. Sept. 13, 1948, No. 23983. Convention date, March 11, 1947. [Class 83 (iii)] In a double spindle automatic lathe for screws and bolts, blanks 6 are fed alternately to the spindle chucks 4, 5 by means of a segment 18 which receives blanks from a hopper through a slot 23, the segment being rotatable through 90 degrees and back again to supply blanks alternately to carriers 8, 9 which are rotated intermittently and out-of-phase by means of a pawl 12 coacting with ratchet-wheels 10, 11. The carriers are provided with semi-circular grooves 13 within which the blanks are held by segments 16, 17.
Patent GB-1017942-A (GB)
Title: Improvements relating to the dyeing of polymeric and copolymeric acrylonitrile fibres
IPC: D06P3/76
Filed: 1964-06-10
Abstract: Polyacrylonitrile and copolymers are dyed in aqueous acid bath containing a basic dye and as assistant a polyamine which has 3 or more quaternised nitrogen atoms, a polygylcol ether chain and at least one lipophilic substituent which is an alkyl or alkenyl radical having 14-20 carbon atoms.  The material is dyed in acid liquor preferably pH 3.5-5 at temperatures of 60-100 DEG C., the amount of assistant being used is generally 1-2% in weight of the polyacrylonitrile.  The polyamines used are derivatives of the diethylene-triamine type, preferably N-octadecyl-diethylene triamine quaternised with dimethyl sulphate, the polyglycol ether chain having 15-20 ethylene oxy groups.
Patent GB-471289-A (GB)
Title: Improvements in and relating to advertising means
IPC: G09F7/12
Filed: 1936-09-03
Abstract: 471,289. Supporting signs. ZELL, M. Sept. 3, 1936, No. 24110. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 5, 1937.] [Class 3 (ii)] Signs are built-up by securing characters to a tacky adhesive strip. In the embodiment shown, the characters are secured by tongues 1 to a strip 2 which may be adhesive on both sides whereby the sign may be secured to a glass window. The tongues may be secured between two adhesive strips or in the groove formed by folding a single strip longitudinally. The adhesive strip may be covered by an ornamental strip 3. Reference has been directed by the Comptroller to Specification 288,113, [Class 3 (ii)].
Patent GB-1382704-A (GB)
Title: Alarm timepiece
IPC: G04G13/02
Filed: 1972-05-23
Abstract: 1382704 Electric alarm timepieces CITIZEN WATCH CO Ltd 23 May 1972 [5 June 1971] 24157/72 Heading G3T [Also in Division H3] An electronic battery-powered watch has an alarm buzzer 50, Fig. 4, which is actuated by closure of a switch 51 which causes a transistor 53 to conduct and consequently a transistor 52 of an alarm oscillator circuit 65. After a period determined by the time constant of a timing circuit 66 comprising resistor 56 and capacitor 57, a transistor 54 conducts which turns off transistors 53 and 52 and automatically terminates the alarm signal. Power is thus saved, even though transistor 54 conducts until switch 51 is opened. In the circuitry of Fig. 5 (not shown), the switch 51 is positioned between circuits 65, 66. In Fig. 6 (not shown), the oscillator circuit is an astable multivibrator. At an alarm time, axial movement of a cannon wheel 11, Fig. 1, causes projections 11a thereon to enter slots 12a in an alarm-setting wheel 12, thus connecting contacts 13c and 10a which constitute the switch 51. The buzzer 50 is formed by a membrane 24 to which is fixed a Piezo-electric or electro-strictive element 25. The back 27 has projections to raise the watch from the wearer's skin, and has holes 27c to release sound of the alarm. The time base 8 of the watch may be a balance wheel or a tuning fork.
Patent GB-305976-A (GB)
Title: Combined decanting and filtering apparatus
IPC: B01D21/02
Filed: 1928-08-22
Abstract: 305,976. Piccardo, C. Feb. 13, 1928, [Convention date]. Separating by gravity; filters having sheet filtering-material.-A sheet 10 of filtering fabric is suspended near the wall of a settling-tank, being held away therefrom by a. permeable support 12. The upper edge of the fabric is fixed by nails 11 to an angle iron 5 and its lower end is held by sand 9 against the inner side of an annular ring 7 which divides into two parts a channel in an angle-iron 6. The permeable support 12 is preferably of spirally-woven wire-work. An outlet 13 is provided for discharge of the filtrate.
Patent GB-1246077-A (GB)
Title: An improvement in or modification of a process for evaporating a metal in vacuo at high temperature, allowing of avoiding metal projections
Inventor: MALDY JACQUES
IPC: C23C14/24
Filed: 1970-05-19
Abstract: 1,246,077. Coating by vapour deposition. COMPAGNIE GENERALE D'ELECTRICITE. May 19, 1970, No. 24244/70. Addition to 1, 154, 959. Heading C7F. In a process of vapour depositing, e.g. Pb, as described in Specification 1, 154, 959 the amount of oxide, e.g. Pb O or MoO 3  introduced to the melt is from 1 to 5 thousandths parts by weight. An atmosphere of hydrogen, nitrogen, argen, neon, krypton or xenon may be used.
Patent GB-1038945-A (GB)
Title: Improvements in and relating to regenerated cellulose films
IPC: B29B7/00
Filed: 1963-06-19
Abstract: 1,038,945. Dyed regenerated cellulose film. UNION CARBIDE CORPORATION. June 19, 1963 [June 25, 1962], No. 24345/63. Heading B5B. A continuous process for producing coloured films of regenerated cellulose, comprises heating a viscose composition to a temperature between room temperature and 70 C., continuously passing a stream of the heated viscose composition through a mixer, continuously and simultaneously adding to the stream of heated viscose a metered amount of a vat dye and of an aqueous solution of a reducing agent for said vat dye, turbulently mixing the stream of heated viscose, vat dye and reducing agent in the absence of air until the dye is reduced to its leuco form and a homogeneous mixture of viscose and reduced dye is formed, passing the homogeneous mixture stream to the extrusion nozzle, the time lapse from the onset of turbulent mixing to the time of extrusion being less than 30 minutes, extruding the homogeneous mixture into a regenerating bath, regenerating the viscose and oxidizing the reduced dye, and recovering a coloured, regenerated cellulose film. Preferably, the vat dye is one in which at least 80% by weight of the dye, and especially at least 90%, is reduced to its soluble leuco form in five minutes at a temperature of 25 C. in a 0À008 to 0À016% vat dye paste, 0À2% sodium hydrosulphite, 6À1% sodium hydroxide solution. The proportion of sodium hydrosulphite is preferably from 0À02 to 8% by weight of the viscose, and especially from 0À025 to 0À1% by weight. Aqueous sodium hydrosulphite solutions satisfactorily used have ranged from 8% sodium hydroxide and 7% sodium hydrosulphite by weight to less than 6% sodium hydroxide and 3À5% sodium hydrosulphite. The coloured regenerated cellulosic tubing can be made having an outer layer only of dyed cellulose. This may be done by extruding two annular conjoined viscose compositions through an extrusion nozzle, so controlled that essentially laminar flow occurs when the viscose is extruded through the annular opening of the extrusion nozzle. The inner annular viscose composition contains a clear viscose, and the outer annular viscose composition contains the vat dye in its soluble leuco form.
Patent GB-746388-A (GB)
Title: Improvements in the separation of hydrocarbon oxidation products
Inventor: THOMPSON BERNARD HAMMOND MARKH
IPC: C07B35/04
Filed: 1953-09-05
Abstract: Dihydroperoxides are produced by oxidation of a compound of the formula <FORM:0746388/IV(a)/1> wherein R and R1 are methyl or ethyl groups, and X is hydrogen, alkyl of 1-5 carbon atoms, CHRR1, halogen, or nitro, whereby a mixture of the dihydroperoxide and hydroxyhydroperoxide is obtained, and the two are separated by extracting the mixture with 1-12 per cent aqueous alkali metal hydroxide solution and an organic solvent as defined below, whereby the hydroxy-hydroperoxide is substantially extracted into the organic solvent and the dihydroperoxide into the aqueous alkali solution. The organic solvents have a dielectric constant greater than 3, and boil below 70 DEG  C. at 20 mm. pressure.  Three methods of separation may be employed: (1) addition of organic solvent to the alkaline extract of the oxidation reaction mixture; (2) addition of aqueous alkali to an organic solvent solution of the mixed peroxides obtained by non-selective extraction from the aqueous alkaline extract of the oxidation mixture; (3) contacting the solid mixed peroxides with organic solvent and aqueous alkali. Solvents specified include chlorinated hydrocarbons, ethers, ketones and alcohols. Inert salts, such as sodium sulphate or chloride, facilitate the separator.  Separation is more complete at higher pH values.  The dihydroperoxide may be separated from the aqueous alkaline phase by acidification, or by a further solvent extraction, which may be with the same solvent as used for separation, and may be carried out at a lower pH value than the separation.  In examples (1) the aqueous alkaline extract of the oxidate from m- or p-diisopropylbenzene was fed to an intermediate stage of a liquid-liquid extractor through which aqueous caustic soda and methyl isobutyl ketone were passed countercurrently; (2) the aqueous alkaline extract from 1.3.5-triisopropylbenzene oxidate was extracted countercurrently with diisopropyl ether; (3) aqueous alkaline extract from the m-diisopropylbenzene oxidate was fed to the top of an extracting column having a rotating cone, or having pulsations applied through a neoprene diaphragm, diisopropyl ether or methyl isobutyl ketone being fed to the bottom, or the alkaline extract is fed to the middle of the column, solvent to the bottom, and additional aqueous alkali to the top.  Specification 727,498 is referred to.
Patent GB-481367-A (GB)
Title: Improvements in and relating to the production of metal powders
IPC: B22F9/00
Filed: 1936-09-09
Abstract: 481,367. Conveyers. MANDLE, H. H. Sept. 9, 1936, No. 24617. [Class 78 (i)] [Also in Group II] In the production of metal powders, particularly bronze powder, there is provided for the supply of the constituent materials which are at different stages of treatment to a chamber 1 wherein they are subjected to a common further treatment a separate conveyer for each material. One conveyer is in the form of a pneumatic conveyer P which is carried in and rotated on bearings 87. The tube of this conveyer carries an external worm 3 which serves as the conveyor for the other material fed through the hopper 2. Specification 481,366 is referred to.
Patent GB-493166-A (GB)
Title: Improvements in or relating to celluloid and similar tyre inflators
IPC: F04B33/00
Filed: 1937-09-10
Abstract: 493,166. Tyre inflators. BRITTON, C. E. Sept. 10, 1937, No. 24673. [Class 8 (i)] The end of a tyre inflator is closed by a cap b of cellulose acetate &c. enclosing and covering the end faces of an internally screwed bush c provided for coupling to a tyre valve. The periphery of the bush may be octagonal to prevent rotation..
Patent GB-1283159-A (GB)
Title: Improvements in neutron absorbers
Inventor: SHEPHERD LESLIE ROBERT
IPC: G21C7/24
Filed: 1970-05-21
Abstract: 1283159 Radiaton absorbing materials; nuclear reactor control rods UNITED KING- DOM ATOMIC ENERGY AUTHORITY 11 May 1971 [21 May 1970] 24774/70 Headings G6C and G6R A thermal neutron absorber for use as a control rod or as shielding in a high temperature nuclear reactor comprises a solid ceramic body containing silicon nitride. The body may be enclosed in a nitrogen atmosphere in a gas-tight container or may be surrounded by a filamentary stocking of a refractory material. The silicon nitride may be mixed with boton nitride or carbide and the ceramic body may include reinforcing molybdenum or tungsten metal filaments. To prevent denitridation in use, nitrogen may be added to the cooling gas. The ceramic body may be made porous and thermally insulating by adding sugar balls during manufacture and volatilizing these to leave voids in the product.
Patent GB-871350-A (GB)
Title: A process for the manufacture of moulding compositions from epoxy-resins and 4:4-diaminodiarylalkanes
IPC: C08K3/013
Filed: 1957-08-06
Abstract: Moulding compositions are manufactured from a homogeneous solution of a 4 : 41-diaminodiphenyl alkane in an epoxy resin which is liquid at room temperature by allowing the solution to ripen at below 100 DEG C. to form a mass which is solid at room temperature, fusible and heathardenable.  Preferably 0,2 to 0,35 mols of diamine are used per epoxide equivalent of epoxy resin.  Specified diamines are 4 : 41-diaminodiphenyl methane, 4 : 41-diaminodiphenyl ethane, 4 : 41-diamino-3 : 31-dimethyldiphenyl methane and 4 : 41-diaminodiphenyldimethyl methane.  Fibrous or pulverulent filling materials, lubricants, colouring matters or other modifying substances such as asbestos, glass, mica, kaolin, quartz, metal powder, metal oxides, natural or synthetic fibres, steatite, powdered chalk, glycerine monostearate or nigrosine may be added immediately after the dissolution of the diamine in the epoxy resin or may be ground with the ripened solid.  The moulding compositions may be made into the form of small chips, tablets or granules.  In Examples (1)-(3), 4 : 41-diaminodiphenyl methane was dissolved in an epoxy resin prepared from 4 : 41-dihydroxydiphenyldimethyl methane and epichlorhydrin and the solution ripened to a solid, either the solution being admixed with or the ripened solid being ground with (1) Steatite powder, glycerine monostearate and nigrosine; (2) and (3) Glycerine monostearate, powdered chalk and glass fibres.  In Example (4), 4 : 41-diaminodiphenyl methane was dissolved in an epoxy resin prepared by reacting a phenol-formaldehyde novolak (dissolved in methyl glycol) with epichlorhydrin, then quartz powder, short glass fibres and glycerine stearate were added to obtain a viscous paste which was moulded into small pieces which were allowed to harden.
Patent GB-1088333-A (GB)
Title: Process for preparing quaternary phosphonium compounds
IPC: D06M13/285
Filed: 1966-06-03
Abstract: Compounds of the general formula (R4P)+X-wherein each R is an alkyl group containing 1-3 carbon atoms and X is Cl, Br or F, are prepared by reacting white phosphorus with an alkyl halide of the formula RX at 200-400 DEG  C.  The reaction is preferably carried out under pressure, e.g. in a lined iron autoclave to prevent the reaction mixture coming into contact with the iron.  The phosphorus may be sprayed into the autoclave at a temperature above 250 DEG  C. Small amounts of PCl3 may be present.  Alkyl dihalo phosphines are formed as by-products.
Patent GB-1270441-A (GB)
Title: Silicon reactor furnace
Inventor: HARRISON JAMES RENEAU
IPC: C01B33/035
Filed: 1969-05-15
Abstract: 1,270,441. Deposition of silicon on silicon; apparatus. TEXAS INSTRUMENTS Inc. 15 May, 1969 [5 June, 1968], No. 24781/69. Heading C1A. In a process for growing rods of a material, such as silicon, which is capable of being grown by vapour deposition on to an elongated rod from a gas circulated over the rod, the material is deposited on a rotating rod of the material suspended within a chamber, by directing a gas over the rod in a direction transverse to the longitudinal axis of the rod at a uniform flow rate at all points on the length of the rod. The rod is preferably supported in a vertical position and rotated by an identical rotatory force at each end to avoid twisting, and the gas enters and leaves the chamber, by front and back foraminous (perforated or porous) panels which are parallel to the filament. In Fig. 1 a reaction chamber 10 comprises parallel front and back foraminous panels 11 and 12 with holes 16, side panels 13 and 14, and a top panel 15 and a bottom panel (not shown). The chamber 10 is enclosed by a jacket 17 of which the panels that are over foraminous panels 11 and 12, form manifolds 18 and 19 and chambers 23 and 24. Jacket 17 also has side panels 25 and 26 and top and bottom panels 28 and 29. The apparatus also incorporates a water-cooled coil 27. A plurality of rods 13 are supported between pairs of opposing chucks 34 at the top and bottom of the apparatus, which chucks extend through seals, to the outside of the apparatus where they all (top and bottom) are interengaged by gear-wheels and linkage, to a driving motor. The chucks are also provided with electrodes (not shown) in order to conduct an electric current through the rods to heat them to the required temperature. The gas passes into the apparatus via header 21 of manifold 18, distributes itself throughout chamber 23 (between 18 and 11) and then passes at a uniform rate through holes 16 of panel 11, across the rods, and leaves via panel 12, chamber 24 and headers 22 (not shown) of manifold 19. The invention is particularly described with reference to silicon, the depositing gas for which, is a mixture of trichlorosilane and hydrogen.
Patent GB-462595-A (GB)
Title: Improvements in or relating to force feed lubricators
IPC: F16N13/16
Filed: 1935-09-06
Abstract: 462,595. Lubricating - pumps. TECALEMIT, Ltd., and CHALMERS, R. A. Sept. 6, 1935, No. 24879. [Class 102 (i)] In a centralized lubricating system, a number of plungers 5 are arranged in bores in a body 3 and are operated by a disc 7 carried by a piston 8, reciprocating in a cylinder 1, inserted in a system through which a flow of lubricant or other liquid is maintained. Ports 15 in a body 12 carried by the piston 8 are controlled by a slide valve 14, which is held in two positions by spring-pressed balls 17, and is moved by the engagement of springs 18, 19 on the valve-rod with a fixed abutment 21.' The piston 15 is thus moved to the right by the liquid pressure and is returned by a spring 23. When the operating liquid is a suitable lubricant, the suction ports 9 communicate with the cylinder 1, as shown. A pump body 3 may be arranged at either or both ends of the cylinder 1.
Patent GB-481524-A (GB)
Title: Improvements in or relating to thrust bearings
IPC: B63H23/32
Filed: 1936-09-12
Abstract: 481,524. Supporting thrust bearings. WHELAN, W. Sept. 12, 1936, No. 24881. [Class 12 (i)] The thrust bearing 13 for a ship's propeller shaft 10 or the like is mounted in a cross-head 16, the opposite ends of which are connected to piston-rods 17, one on each side of the longitudinal axis of the bearing. The rods 17 having pistons 22 slidable in cylinders 18. The pistons 22 are normally located half-way in each cylinder adjacent a port 23 for the admittance of pressure fluid into the cylinder. Upon racing of the engine the fluid trapped on one side or other of each piston 22 forms a cushion and prevents hunting of the bearing. Pipes 31 with valves 32 may connect opposite sides of the cylinders. Alternatively, the pistons may be grooved. The pressure fluid used may be lubricating oil and it may be taken from the system supplying oil to the thrust bearing.