baber/WOPTO huggingface dataset:
Patent GB-1460620-A (GB)
Title: Refrigeration installation
IPC: F25D17/06
Filed: 1974-05-06
Abstract: 1460620 Refrigerators ETABS BONNET 6 May 1974 [8 May 1973] 19921/74 Heading F4H A thermally-insulated chamber is provided with a removable cooling device in the form of a bridge which comprises upright ducts 20, 21 and an upper transverse part constituted by an evaporator 19, which is so mounted as to cover openings in the upper portions of the ducts. The inwardly facing lower portions of the ducts are each provided with an opening in which at least one air-circulating fan 22 is provided. The fans in the two ducts may be arranged so that one is an expeller fan and the other is an induction fan or so that they are both either expeller or induction fans. In use, goods to be cooled are loaded on a trolley which is placed between the two ducts, Fig. 8 (not shown). The chamber is formed by joining two one-piece members, one constituting three walls and a top and the other constituting the fourth wall, Figs. 1-6 (not shown), each member being made up of a thickness of plastics foam between two layers of a dense material.
Patent GB-963467-A (GB)
Title: Method of applying metallic coatings to solid materials and fuel cells employing such coating materials
IPC: C23C18/28
Filed: 1962-05-24
Abstract: Surfaces of porous and non-porous solid bodies generally non-metallic and non-conducting are coated with metal, said surfaces having reactive groups chemically and/or physically bound thereto and capable of forming a deposit of first-metal on said surface on contact with a solution of a metal salt; said first metal forming catalyst metal sites being capable of catalysing the reduction of a second metal salt in the presence of a reducing agent to form a thin continuous metal coating.  The reactive groups consist of groups for reversible oxidation-reduction reactions contained in suitable organic compounds adsorbed on the solid surface. The first metal forming the catalyst metal sites is formed by treating the reactive surface with a salt of Ag, Au, Pt or Pd.  Groups for reversible oxidation-reduction reactions may be formed chemically thereon, or adsorbed as with dyes and consist of, e.g. benzenoids.  Suitable dyes for irreversible adsorption of oxidation-reduction units are the water-soluble redoxdyes. The preferred dyestuff is methylene blue. The second metal must have salts catalytically reduced by the first metal and is preferably Ag or Ni.  For Ag the first metal may be Ag, Au, Pt or Pd but for Ni the first metal should be Au, Pt, Pd, but not Ag. Reducing agents used with a salt of silver as the second metal may be hydroquinone, hydroxylamine &c.  For a salt of Ni as the second metal the reducing agent should be sodium or potassium hypophosphite used at 65  DEG C.  Membranes coated by the method of the invention may be electroplated, using the metal-coated membrane as cathode, with, e.g., Cu, Pt, Au, Ir, Rh, Pd, Ni, Cr, Fe, Co and alloys thereof.  The second metal coating, i.e. Ag, deposited can be replaced by another metal, e.g. Au, Pt or Pd, by chemical exchange or replacement as by contacting the Ag with an aqueous solution containing ions of such metal.  Metal-coated membranes for fuel cell electrodes are 2-20 mils thick, preferably 2-12 mils, with metal coatings of 0.001-0.0001 inch thick.  Substrates mentioned are membranes of inter polymers, carbon and glass.
Patent GB-831447-A (GB)
Title: Improvements in or relating to devices for operating by means of a permanent magnet,an adjustable member in an electric toy or model railway
Inventor: GOTHE OTTO
IPC: A63H19/32
Filed: 1957-06-25
Abstract: 831,447. Toy railways. ROKAL G.m.b.H. June 25, 1957, No. 20006/57. Class 132(3) An adjustable member in an electric toy or model railway is pivotable between two extreme positions by means of a permanent magnet rotatably mounted between and in the plane of two soft iron bars having a common longitudinal axis, the magnet being prevented, by two abutments, from orientating into a position in which the magnetic axis of the magnet is coincident with the common longitudinal axis of the two soft iron bars. As shown, a switch plate 5 of a set of points is pivoted at E and is connected by a link 4 to a magnet 1 rotatable about a vertical axis, the magnet tending to rotate such that its magnetic axis coincides with the common axis of soft iron bars 2, 3. Further anticlockwise rotation of the magnet is prevented by engagement of the plate 5 with the rail at C. Similarly, when the plate 5 has been moved to the branch line position, further rotation of the magnet clockwise is prevented when the plate engages the rail at D. The turning force on the magnet resulting from the interaction of the bars 2, 3 with the magnet causes the plate to be urged against the rails at C or D By passing a D.C. impulse through series connected coils 8, the magnet may be rotated for moving the plate into either of its two positions. Lost motion may be provided between the link 4 and plate 5 by slotting the link where it engages the plate, Fig. 3 (not shown).
Patent GB-676492-A (GB)
Title: Device for mixing together two substances normally retained separate from each other in a common container without having to open said container
IPC: B65D51/28
Filed: 1950-08-11
Abstract: 676.492. Compound bottles. HAUDUROY. P. Aug. 11. 1950 [Aug. 13. 1949; July 12. 1950], No. 20040/50. Class 125(i) [Also in Group VI] A compound containe for medicines &c. com prises a primary container 1 and a secondary con tainer 2 of aluminium or other easily puncturable or frangible material hel( in the top opening by a deformable disc 4 and a capseal 3, crimped to the primary container at 3a, engaging flanges 2a. A pointed perforator 5 frictionally engages the secondary container and is fitted with an annular cap 11. An outer protecting cap 14 has a breakable strip 15 to facilitate its removal. The container is used for storing two substances, e.g. antibiotics which must be mixed just prior to use, the frangible container 2 being fractured by pressure on the cap 11 through the disc 4 to mix the contents without exposing them to the air. A dose can then be extracted by piercing the disc 4 with a syringe.
Patent GB-258238-A (GB)
Title: Improvements in or relating to metal screw propellers
IPC: B64C11/18
Filed: 1926-08-16
Abstract: 258,238. Soc. Anon. Nieuport-Astra. Sept. 14, 1925, [Convention date]. Screw propellers.-Screw propeller blades are formed with cylindrical front and rear faces, the directrices being inclined so that the blade tapers in thickness from root to tip and also in width and thickness from leading edge to trailing edge. The roots are formed with parallel cylindrical surfaces and with grooves which fit between corresponding surfaces on a two-piece boss. The cylindrical blade surfaces are generated by inclined lines a, a, Fig. 2, such that the sections i, h, g, f, Fig. 1, have circular elements generated from centres i<2>, i<3> h<2>, h<3>, g<2>, g<3>, f<2>, f<3> whereby the blades taper in thickness from root to tip and in width and thickness from the leading to the trailing edge. The root section e is formed with parallel surfaces j having grooves k and with a recess l to take over the driving shaft. The boss is in two portions, of which m, Fig. 6, has cylindrical flanges s provided with grooves k' and set at the pitch angle. This portion is coned and keyed to fit the driving shaft. The other portion u, Fig. 5, has corresponding plain flanges s and is secured by a nut to the part m.
Patent GB-596939-A (GB)
Title: Improvements in or relating to hair-drying machines
IPC: A45D20/22
Filed: 1945-08-07
Abstract: 596,939. Hair-drying apparatus. PATTERSON, E. A. Aug. 7, 1945, No. 20157. [Class 81 (ii)] In a hair-drying apparatus, air is forced by fan 2 past heating elements 15 through concentric annular passages adjacent the periphery of an outer casing, and is directed by baffles on to the hair and into an inner shell 9 whence it returns to the fan. The passages are defined by concentric partitions 10, 11 mounted on bolts 13 provided with insulating spacers 14 supporting the heating elements and formed as shown to deflect the air through openings 16- 19 in the inner shell. Air passing through the outer passage is deflected by lip 8. Shell 9 is closed by disc 20 formed with a gauze-covered aperture 21. Two fans may be provided. A gauze-covered air inlet 6 is disposed in casing 5. The heating elements may be such that the initial temperature to which the air is heated varies according to its length of path.
Patent GB-153127-A (GB)
Title: An improved container for powder and other pulverulent substances used for toilet and other purposes
IPC: A47G19/24
Filed: 1919-08-18
Abstract: 153,127. Robarts, G. W. Aug. 18, 1919. Powder-distributors; contents, delivering.-In the type of distributor, in which a valve controlling the discharge orifice is carried by a spring- controlled rod passing through the container and worked by the finger or thumb, the valve is at the top of the container and the thumb-piece in a recess in the bottom. The valve may, in one form, act as a measurer. The vessel a has a concave bottom b of sufficient depth to house a spring g and the head f of the rod e, which is loosely connected to the valve d made of soft metal and fitted with guide vanes. The rod is pinched to the valve at d<1> or its end is upset and covered by a piece k, Fig. 8, which is then bent down over it. By forming a stop d<3> on the valve, it may act as a measurer. The bottom may be made of cardboard sprung into place. Re-filling can be. accomplished by cutting out the bottom and springing in a new one.
Patent GB-243441-A (GB)
Title: Improvements in and relating to liquid level indicating devices
IPC: F22B37/78
Filed: 1924-08-27
Abstract: 243,441. White, A. E., (Dean, P. P.). Aug. 27, 1924. Indicators actuated by pressure of head of liquid; gauge glasses.- The level of liquid in a boiler 3 is indicated at a distance by allowing the differential action of a column of liquid 6 of constant height, and a column of liquid variable in height with the boiler level to influence a liquid of different density m a gauge glass 8 and reservoir 17. The cross-sectional area of the reservoir is large with respect to that of the gauge glass, and the indicating liquid has twice the density of the liquid in the boiler so that the rise and fall of the indicating liquid will be equal to that of the liquid in the boiler. The pipe 6 is connected to the boiler steam space and contains a reservoir 18, preferably at a predetermined low level of the boiler, at which level the indicating liquid is at zero. The level in the reservoir 18 is maintained constant by a drain line 19 connected to a steam pipe or superheater at boiler pressure, or to a trap. A suitable indicating liquid for use with a boiler is acetylene tetrabromide coloured red.
Patent GB-923939-A (GB)
Title: Improvements relating to vibratory members
Inventor: HARDMAN ARTHUR RANDALL
IPC: C22C19/05
Filed: 1960-06-09
Abstract: A method of manufacturing a vibratory member having a substantially zero thermoelastic coefficient over the range - 50 DEG  to 150 DEG F. and an inherent mechanical hysteresis of at least 4% comprises heating a member made from a Ni-Cr-Ti-Fe alloy containing 38-46% Ni, 7.5-7.7% Cr+Ti and the balance iron and unavoidable impurities to a temperature and for a time sufficient to cause a phase consisting of an intermetallic compound of Ni and Ti to dissolve in the matrix of the alloy, rapidly cooling the member, and, if the thermo-elastic coefficient is not substantially zero, subjecting the member to a further heating at a lower temperature to precipitate sufficient of the dissolved phase to bring the thermo-elastic coefficient to the desired value.  The first heating may be to 1750 DEG  to 1950 DEG F., followed by quenching in water, and the second heating may be to 600 DEG  to 1050 DEG  F.
Patent GB-614206-A (GB)
Title: Improvements in snap-action electric switches
IPC: H01H50/68
Filed: 1946-07-08
Abstract: 614,206. Snap-action switches; electromagnetic interrupters. GRATZMULLER, J. L. July 8, 1946, No. 20390. Convention date, July 7, 1945. [Class 38 (v)] [Also in Group XXVIII] A retractive snap-action switch has a toggle mechanism comprising two links 4, 5 and spring 8, and supported between a member 3 and ball swivel 7. The link 4 carries a contact 64 which co-operates with a contact 9b fixed on the lower member of a stirrup 9, or with an insulating stop 14 fixed on the upper member of the stirrup. When the button 16 is depressed, the stirrup 9 is moved downwards against the spring 11, forcing the toggle mechanism to move over the dead-centre position to close the contacts 64, 9b. This switch mechanism may be used in a fluid-pressure switch (Fig. 3, not shown), in which the stirrup 9 is moved by a diaphragm against the tension of the spring 11, the latter being adjustable to permit the operation of the switch at different pressures. The device may also be used as the interrupter for an electromagnetic diaphragm-type fuel pump, Fig. 4. When the contacts 17, 64 are closed, a coil 32 is energized and attracts the armature 36, causing the downward displacement of a diaphragm 35 which draws in fuel through a port 39, a filter 40, a port 42 and a disc valve 43. At the same time, a rod 31 carrying the stirrup 9 moves downwards and the contacts 17, 64 are opened to de-energize the coil 32. The spring 11 now forces the armature and diaphragm upwards and the motion imparted to the fuel causes valve 43 to close and a ball valve 46 to open to discharge the fuel through an outlet 47. The contacts 64, 17 reclose as the stirrup returns to its original position and the cycle of operation is repeated. The Specification as open to inspection under Sect. 91 describes and illustrates alternative constructions in which a simple contactcarrying bowed spring blade is used in place of the toggle mechanism, the spring being supported between one resilient and one rigid member or between two resilient members. This subject-matter does not appear in the Specification as accepted.
Patent GB-790351-A (GB)
Title: Process for the redistribution of organosilanes
IPC: B01J27/06
Filed: 1956-07-02
Abstract: The Specification describes the preparation of sodium chloroaluminate on a carrier, used as a catalyst in a redistribution reaction between chlorosilanes, and the regeneration of the spent catalyst by contacting it with anhydrous aluminium trichloride.  Suitable carriers are porous clay, pumice and the material known under the Registered Trade Mark "Alundum."  The preformed sodium chloroaluminate may be deposited in the molten state, or it may be dissolved in a solvent and mixed with the carrier and the solvent evaporated off. Alternatively, the catalyst may be prepared in situ, e.g. by soaking "Alundum" particles in saturated saline solution, drying the particles and heating with anhydrous aluminium trichloride in a sealed, steel tube at 475 DEG  C.  The regeneration may be effected by passing the aluminium chloride over the catalyst in combination with the feed for a limited time.  The amount of AlCl3 is generally from 0.5 to 10 per cent of the weight of the silane mixture and the temperature may be from 250 DEG  to 500 DEG  C.ALSO:The process described in the parent Specification, in which sodium chloroaluminate is used as catalyst in a redistribution reaction between two organochlorosilanes or between an organochlorosilane and silicon tetrachloride, is improved by regenerating the spent catalyst by contacting it with anhydrous aluminium trichloride.  This may be done by passing the aluminium chloride over the catalyst in combination with the feed for a limited time.  The amount of aluminium chloride is generally from 0.5 to 10 per cent of the weight of the silane mixture. Temperatures of 250 DEG  to 500 DEG  C. are employed, and the catalyst is used in combination with a carrier. Examples are given illustrating the yields of dimethyldichlorosilane obtained from a mixture of MeSiCl3 and Me3SiCl, using different amounts of aluminium chloride and different residence times.
Patent GB-816892-A (GB)
Title: Purification of terephthalic acid
Inventor: NESBITT PHILIP
Filed: 1957-06-28
Abstract: The invention comprises a process for purifying crude terephthalic acid, by heating the same with benzoic acid until solution occurs, cooling the resultant solution and allowing the terephthalic acid to crystallize out.  The process may be conducted under atmospheric or super-atmospheric pressure, and the solution is conveniently cooled to 150 DEG  C. before isolation of the crystallized terephthalic acid.  The purification may be carried out in the presence of an inert gas, e.g. nitrogen, and the mixture of acids is preferably agitated at least until the terephthalic acid dissolves.  The process may be carried out in a titanium vessel, and may be preceded by a first purification by a known method, e.g. a simple recrystallization of crude terephthalic acid from water under super-atmospheric pressure, or extraction with suitable solvents, or oxidation, reduction treatment with periodic acid or lead tetra-acetate, or physical treatments such as absorption of impurities with carbon, to the benzoic acid solution of terephthalic acid prior to crystallization.  The benzoic acid used may be recovered for use again by simple distillation.  The process may be operated batchwise or continuously, and aqueous solutions of the benzoic acid may be employed.  Examples are given of the purification of crude terephthalic acid which has been prepared by (1) air oxidation of p-xylene using cobalt and manganese bromides as catalysts in (a) benzoic acid, (b) acetic acid, (c) propionic acid; (2) nitric acid oxidation of p-xylene; (3) air oxidation of p-diisopropyl benzene; (4) air oxidation of p-xylene; and (4) dismutation of potassium benzoate.
Patent GB-249464-A (GB)
Title: Improvements in processes of purifying, deodorising, or the like, gaseous mixtures, and apparatus therefor
IPC: F01N13/02
Filed: 1925-08-14
Abstract: 249,464. Bregeat, J. H. March 21, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Materials for purifying gases; scrubbers and washers; purifiers. -The exhaust gases from motors or producers are purified by passage through absorbent liquids or solids which may be regenerated. The gases may be purified in a cylindrical holder A, Fig. 2, entering by a pipe F and passing into a chamber C having serrated edges C<1> dipping into liquid in the base of the holder A and then passing through solid purifying material D resting on a perforated floor D, final purification being obtained by passage through a cylindrical contact filter E. In other forms of apparatus the gases pass through solid absorbing agents coated with agglutinants, e.g. oils, glycerine, tetraline, soap suds, &c. In a modification, the purifying liquid is sprayed in the path of the gases by rotating blades 15, Fig. 8, driven on the motor shaft 14; in another form, the gases pass upwards through a tower packed with absorbent material 13, Fig. 9, moistened by liquid circulated by a pump 16. The solid absorbents used are kiesel-guhr, pumice stone, peat and wood charcoal. Specifications 171,507, 201,119 and 239,744, [Class 90, Non-metallic elements], are referred to.
Patent GB-678220-A (GB)
Title: Improvements in or relating to electric fires
IPC: F24C15/36
Filed: 1949-08-06
Abstract: 678,220. Electric fires ; guards for electric fires. MOLE, G. T. Aug. 8, 1950 [Aug. 6, 1949], No. 20515/49. Classes 39(iii) and 126 A guard for an electric fire of the box type comprises a series of forwardly extending, rigid, parallel louvres 13 rigidly secured to spaced end members 15 having flanges 16 on their front and rear edges, to engage the casing 10 of the fire, the louvres 13 and members 15 forming a detachable unit for fitting over the casing 10. The louvres, which are downwardly inclined towards the front, may be of aluminium or heat-resisting glass and are attached to the members 15 by end lugs 14. The Provisional Specification describes also several embodiments in which a single electric heating element is mounted behind a metal or glass screen suitably shaped reflectors being provided to direct heat forwardly of the fire, while in an embodiment similar to that described in the Complete Specification the louvres are stated to be moveable, and if desired vertically arranged. The casing of the fire, or parts of it, may be double-walled and contain a little water, or be partially oil- or liquid-filled. A pressure-sensitive control for a switch may be included in the double wall.
Patent GB-1165848-A (GB)
Title: Adjustable Trench Shoring Machine
Inventor: TORTI EMMANUEL
IPC: E02D17/08
Filed: 1968-05-01
Abstract: 1,165,848. Trench shoring machine. E. TORTI. 1 May, 1968 [18 May, 1967], No. 20535/68. Heading E1E. A trench shoring machine consists of two telescopic box-like sections 10, 12 which are selectively expanded or contracted by an arrangement of four hydraulic jacks having independent and common control means, see Fig. 3 (not shown). The sections may have provision for adjusting their widths and jacks for effecting tilting or lifting thereof. The machine may also be provided with a superimposed extension box and an excavator box.
Patent GB-422962-A (GB)
Title: Improvements in and relating to the manufacture of sheet rubber suitable for use as surgical dressings or bandages or as other wrappings
IPC: C08C4/00
Filed: 1933-07-20
Abstract: Rubber is rendered capable of adhering to itself but not appreciably to other surfaces for use in surgical bandages and other wrappings by dissolving out most of the gummy constituents, and heating until it becomes tacky.  Numerous methods are described of carrying out the process.  The rubber may be treated with a ketone, such as a mixture of water and at least 25 per cent acetone.  This may also serve as a vehicle for the introduction of antiseptics, dyes, pigments or stabilizers.  After extraction, the rubber is heated for about an hour at 65-90 DEG  C.  Bandages may be made by extracting the resins from a strip of cr<\>zepe or the like, rolling the strip with an interlayer, packaging the roll, and heating the packet.  Stretch may be reduced by an interposed textile, wire gauze &c. layer, which may be inserted at any stage of the process.  Fabrics may be impregnated, or threads may be coated with a rubber dispersion, and after coagulation, treated by the process.  The resins may be extracted from latex before coagulation.  British Specification 397,694 and U.S.A. Specification 1,885,007 are referred to.ALSO:Bandages are made from rubber which is rendered capable of adhering to itself, but not appreciably to other surfaces, by dissolving out most of the gummy constituents, and heating until it becomes tacky.  Numerous methods are described for carrying out the process.  The rubber may be treated with a ketone, such as a mixture of water and at least 25 per cent of acetone.  This may also serve as a vehicle for the introduction of antiseptics, dyes, pigments or stabilizers.  After extraction the rubber is heated for about an hour at 65-90 DEG  C.  A strip of extracted cr<\>zepe or the like may be rolled with an interlayer, and the roll packaged before heating.  Stretch may be reduced by an interposed textile, wire gauze &c., layer which may be inserted at any stage of the process.  Fabrics may be impregnated or threads coated, with a rubber dispersion, and after coagulation, heated by the process. The resins may be extracted from latex before coagulation. British Specification 397,694 and U.S.A. Specification 1,885,007 are referred to.