baber/WOPTO huggingface dataset:
Patent GB-512966-A (GB)
Title: Improvements in or relating to process for the electrolytic production of persulphuric acid and persalts and apparatus for carrying out the process
IPC: C25B1/28
Filed: 1938-03-25
Abstract: 512,966. Electrolytic cells. OESTERREICHISCHE CHEMISCHE WERKE GES. March 25, 1938, No. 9272. Convention date, May 21, 1937. [Class 41] In apparatus of the filter-press type for the production of persulphuric acid and persalts such as ammonium persulphate, the anode of one cell and the cathode of the next are mounted to form a chamber through which a cooling liquid is passed. In the apparatus shown in Fig. 2, the intermediate electrodes are bipolar, the cathode side being formed by a tray 1 of lead or graphite and the anode side by a thin sheet 2 of platinum mounted over the tray to form a cooling chamber 3 through which liquid is passed by pipes W, W<1>. The electrodes are separated by diaphragms 6 mounted between insulating rings 7, 8. The cells are preferably of circular cross-section. Electrolyte is passed through the anode and cathode chambers by pipes E, E<1> and F, F<1> respectively. Diaphragms may be dispensed with. In the apparatus shown in Fig. 4 each electrode comprises a tray 1 having a perforated upper surface over which the anode surface 2 is mounted. Cooling liquid enters by pipes W and leaves by pipes W<1> extending up to the anode surface. The diaphragms 6 are of tray form. The anolyte and catholyte are independently circulated through the successive cells from top to bottom, the overflow pipes E being so placed as to ensure, covering of the cathode surface ; gas collects in pockets 11. The insulating rings separating the electrodes may be provided with grooves or apertures above the electrolyte level for access to the electrodes or diaphragms.
Patent GB-177403-A (GB)
Title: Improvements in dipping tanks for coating electrical apparatus and machinery
IPC: H01B13/30
Filed: 1921-03-29
Abstract: 177,403. Symons, H. D. March 29, 1921. Coating - machines. - A dipping-tank a for varnishing electrical apparatus by immersion is formed with a channel d round the top containing liquid or sand, which, in conjunction with the edge of the lid c forms a seal. A support e is provided with the lid when in open position.
Patent GB-314919-A (GB)
Title: The manufacture and treatment of cellulose esters
IPC: C08B3/16
Filed: 1928-03-28
Abstract: 314,919. Dreyfus, H. March 28, 1928. Fibres, treating; yarns and threads, treating with liquids. - Products termed mixed alkacylalkoxyalkacyl derivatives of cellulose, i.e. products in which a part of the hydroxy groups of the cellulose molecule is substituted by one or more simple aliphatic acid radicals and a part or the whole of the remaining hydroxy groups by one or more alkoxy aliphatic acid radicals, are obtained by treating fibres made of or containing cotton or other cellulosic material with appropriate reagents, particularly with the corresponding acid anhydrides, under conditions such that the alkacyl-alkoxyalkacyl derivative produced does not go into solution. The acylations may be conducted in suspension in non-solvent liquid diluents or, according to the Provisional Specification, the vapours of the anhydrides may be used in the absence of liquid diluents. Suitable acylation conditions and catalysts are mentioned. Materials made of or containing the alkacylalkoxyalkacyl derivatives may be loaded as described in Specification 314,918 in connection with the simple alkoxyalkacyl derivatives. The Provisional Specification states that materials containing the alkacyl-alkoxyalkacyl derivatives may be subjected to local or other delustering and relustering treatments similarly to cellulose acetate. Specifications 165,519, [Class 2 (ii), Cellulose &c.], 198,023; 203,092, 263,938, 300,998, 304,674, [all in Class 2 (ii), Cellulose &c.], 313,233, 313,234, and 313,235, [all in Class 2 (iii), Dyes &c.], are referred to.
Patent GB-1113365-A (GB)
Title: Improvements in or relating to powder deposition welding torches
IPC: B05B7/20
Filed: 1967-02-28
Abstract: 1,113,365. Welding by fusion. MESSER GRIESHEIM G.m.b.H. 28 Feb., 1967, No. 9376/67. Heading B3R. In a powder deposition gas-welding torch in which powder from a hopper or the like passes into the gas stream and is conveyed thereby to the torch tip, a non-return valve in the powder supply line between the hopper and the gas stream is closed by a pressure wave should a flash-back occur. Oxygen from a central passage 11 and acetylene from surrounding passages 12 are mixed by an injector 13 and the mixed gases pass through a bore 19 to the torch tip. Powder from a hopper 15 passes through a flexible pipe 16 in an attachment 14 fixed to the torch body 10 and enters the gas stream at the outlet of the injector 13. The flexible pipe 16 may be closed by a manuallyactuated member 18. A cup 21 threaded in the attachment 14 and carrying the hopper 12 has one or more powder outlets 24 in its base which is formed with an annular valve seat 23. A centrally apertured diaphragm 25 co-operates with the valve seat 23 to close in the event of a flash-back. The suction effect of the oxygen flow normally maintains the diaphragm 25 in an open position. A bore 32 connects the base of the hopper to atmosphere. Alternatively, the bore 32 may be dispensed with and flats be provided on one or both of the cooperating threaded parts of the hopper 15 and the cup 21.
Patent GB-177405-A (GB)
Title: A new or improved chuck for broaching and like machine tools
IPC: B23D41/04
Filed: 1921-03-29
Abstract: 177,405. Liddiard, W. H. March 29, 1921. Broaching.-A cylindrical casing a has a tapered nose a<3> and is made integral with, or screwed to, a head a<1> provided with a stem a<2> which is screwed into the pulling-head of the machine. Within the casing is a movable head b to which are pivoted three jaws c, pressed apart by springs c<1>. The head may be moved by a handlever d and is pushed forward when free by a spring b<2>. When the headed shank is pressed in, the head is pressed back and the jaws open to allow the head e to pass within them, as shown in Fig. 2. When the pressure is released the head b is pressed forward by the spring b<2> on the lever, and as the jaws move into the nose a<3> they are closed behind the head e.
Patent GB-1158495-A (GB)
Title: Airmen's Helmets
Inventor: LOBELLE MARCEL JULES ODILON
IPC: B64D10/00
Filed: 1966-03-13
Abstract: 1,158,495. Flying helmet. M.L. AVIATION CO. Ltd. 27 Feb., 1967 [3 March, 1966], No. 9423/66. Heading A3V. A non-pressurized airman's helmet has an oxygen mask 6 supported by a jaw-piece 7 which is pivoted to the shell 4 at one side 8 and releasably secured to the other side 10 so that the jaw-piece and the mask can be swung away from the wearer. The helmet is described in detail in Specification 1,158,494 and is particularly for use with an ejection seat helmet restraint system. The jaw-piece is rigid and the oxygen mask 6 is secured to a U-shaped bracket within the jaw-piece. The pressure of the mask against the face is controlled by a knob 30 secured to a screwed rod 31. Further adjustment wheels 18, 24 enable the mask to be raised or lowered relative to the jaw-piece. In an alternative mask adjusting means, Fig. 5 (not shown), the mask is held against the face by a pair of upper cords (33), (34) and a pair of lower cords (35), (36). Each pair is connected over pulleys to adjusting screws (46), (50) respectively.
Patent GB-1368059-A (GB)
Title: Stabilised boat hull
IPC: B63B1/12
Filed: 1971-08-24
Abstract: 1368059 Trimaran A H ORR 24 Aug 1971 9456/70 Headings B7A B7S and B7M A trimaran type hull, e.g. for a yacht, comprises hull sections 11, 12, 13 integral with main hull 14, central section 12 having a step 15. Fixed plates 17, 18, 19 on sections 11, 12, 13 provide protection when grounding, and also form hydrodynamic surfaces. Control member 20 is pivotable between sections 11 and 13 to alter the hydrodynamic lift forces at the stern of the hull. The intersection of the hull sections with the main hull may be flared or angular. The hull may be rigid or formed from inflatable tubes.
Patent GB-825707-A (GB)
Title: Improvements in electrical switchgear
Inventor: GIBSON ARTHUR CHARLES
IPC: H02B11/133
Filed: 1956-03-27
Abstract: 825,707. Switchgear structures. BRITISH THOMSON-HOUSTON CO. Ltd. June 25, 1957 [March 27, 1956], No. 9541/56. Class 38 (5). A draw-out switchgear panel has one set of isolating contacts 12 mounted in a carriage 22 slidable in a movable portion 14 and operable by a pivoted lever 31 which is controlled by a link 35 on a trunnioned nut 34 on a threaded shaft 33. To disconnect the contacts 12 from the fixed bus-bar contacts 10 the shaft 33 is rotated to move the nut 34 to the right so that the carriage 22 is moved in the same direction guided by its projecting pins 24, 25 sliding between rails 26. When the Fig. 5 position is reached the pins 24 engage abutments 40 on rods 38 which may be turned through 90 degrees to disengage the abutments 40 and move abutments 39 behind the pins 24. If the rotation of the shaft 33 is now continued a conducting blade 19 engages an earthing contact 48 to earth one side of the circuit-breaker 18. If instead the rotation of shaft 33 is reversed the abutment 39 prevents the return to the Fig. 1 position and the complete movable portion 14 is withdrawn to disengage the isolating contacts 11, 13. The movable portion 14 may be locked in the operative (Figs. 1 and 2) position by bolts 41 engaging blocks 47 in the fixed portion, the bolts being controlled by a shaft 45 through links 42, 43, 44 and interlocked with the circuit-breaker 18.
Patent GB-682376-A (GB)
Title: Improvements in or relating to lead-in seal for electrical discharge devices
IPC: H01J5/32
Filed: 1951-04-24
Abstract: 682,376. Discharge apparatus. KREFFT, H. E. April 24, 1951 [Jan. 25, 1951], No. 9559/51. Class 39(i) [Also in Group XXXVI] A lead in seal for an electric discharge device comprises an electric conductor consisting of an inner lead 18 and an outer lead 4 connected by a thin foil 5 which is sealed in a quartz glass body 1 having a tubular plug 2 fused to one end so that the inner lead 18 is located axially of and spaced from the inner wall of the plug 2. The leads 4, 18, which are of sheet metal are connected to the foil 5 by tongues 9, 16 which pass through slots in the foil, and by folding the margins 8, 15 of the leads over the foil, the parts then being secured by spot welding. That part of the inner lead 18 that is not secured to the foil 5 may be bent to tubular shape to receive a support rod for an electrode. The foil 5 may have stiffening ribs, and the sealing edges 13 may be wedge shaped and bent out of the plane of the foil. The vitreous jacket is made from two quartz glass tubes of different diameters joined end to end. The assembled conductor is introduced into the larger tube so that the tubular conductor 18 lies in the smaller tube, through which an inert gas is then passed. The larger tube is heated and pressed on to the foil 5 and the resulting seal is severed from the remainder of the tube. The smaller tube is also cut, leaving the plug 2 for sealing to a vitreous envelope. Quartz 3 remaining on the outer lead 4 is removed to form the completed seal. The lead in conductor may be made of molybdenum, tungsten or tantalum.
Patent GB-1431004-A (GB)
Title: portable calculator
IPC: H01H13/785
Filed: 1974-03-04
Abstract: 1431004 Keyboards AVIATRONIK PRAZISIONSMECHANIK INDUSTRIE ELEKTRONIK GmbH 4 March 1974 [15 Sept 1973] 9565/74 Heading B6F [Also in Divisions G4 and H1] An electronic calculator (see Division G4) may have keyboard switches and slider switches. Keyboard.-When a key, held in a layer of foam plastic 35 (Fig. 4) and projecting through an aperture in a metal plate 38 is operated, rubber foil 33 is depressed to bring a bridge contact 31 on the lower side of a sheet of polyester foil 30 into engagement with a pair of circularly shaped concentric contacts 24 on circuit board 10 through a hole 28 in an insulating layer 27. In a modification (Fig. 7, not shown) operation is effected by inserting a finger into an aperture (47) in a top plate (46) to exert pressure via a transparent protective foil (44) and keyboard foil (41) to make contact as in the embodiment of Fig. 4. Slider key.-This comprises a slide element 78 (Fig. 9) having a plate shaped central element and either a separate ball member or, as shown, an integral convex pressure part 79 continuously depressing a polyester layer 73 having self adhesive on its side adjacent a rubber sheet 72. When the slider key is moved to the right a bridge contact 31 on a polyester layer 30 is brought into engagement via aperture 28 in insulating foil 27 with contact 24. A multiposition switch movable in either an arcuate or linear path may be similarly constructed.
Patent GB-760476-A (GB)
Title: Improvements in or relating to gates and the like
Inventor: BOUTCHER CHARLES EDWARD DAVISO
IPC: E06B9/02
Filed: 1953-04-09
Abstract: 760,476. Gates. HIGHWAYS (NURSERYLAND), Ltd. April 5, 1954 [April 9, 1953], No. 9603/53. Class 45. [Also in Group X] An adjustable guard gate comprises panels, e.g. three, 10, 13, 14 hinged together at 15, 16 and each formed of a metal frame 11, 11a, 11b with a wire mesh 12, 12a, 12b welded thereto in criss-cross fashion, adjustable pressure-contact members 17 ... 19 mounted on the outer vertical sides of the gate and being free to turn relatively thereto and having rubber pads 20, and means for moving the members 17 ... 19 to contact the sides D of the space in which the gate is to be fitted. The members 17 ... 19 comprise brackets 17 clipped at 18 to the appropriate frames, e.g. 11a, Fig. 6, to be rotatable about a vertical axis, the brackets 17 each carrying a pair of cup members 19 fitted with rubber pads 20. The brackets 17 are fixed respectively to one end of a threaded rod 23 and to a tube 21 in which the rod 23 passes freely. Rotation of a nut 24 on the rod 23 against the free end of the tube 21 forces the rod 23 outwardly to press the members 17 . . . 19 against the surfaces D. A single elongated member may replace each pair of cups 19, and two panels only may be used, see Fig. 3 (not shown).
Patent GB-1472462-A (GB)
Title: Process for photographically printing an image on a surface  of an object
IPC: G03F7/24
Filed: 1974-04-12
Abstract: 1472462 Photographic process FABRIQUE NATIONALE HERSTAL SA 12 April 1974 [12 April 1973] 9635/74 Heading G2X An image is photographically printed on a geometrically non-developable (as defined) surface of an object, by (1) coating the surface with a photo-sensitive polymer, (2) exposing to light through an exposure mask which is provided between the coating and a transparent casing enclosing the object, the mask being pressed into intimate contact with the coating over the whole area thereof by reduced pressure within the casing, and (3) dissolving away the more soluble parts of the exposed coating. In embodiments the exposure mask may be provided on the internal surface of the coating, the coating may be opaque or an antireflective varnish may be applied before the coating.
Patent GB-689636-A (GB)
Title: Improvements in and relating to reservoir cleansing devices
IPC: B65D47/42
Filed: 1950-04-19
Abstract: 689,636. Cleansing dabbers. THORPE, T. E. April 19, 1950, No. 9664/50. Class 19. A cleansing dabber for capping liquid containers and of the kind comprising a perforated cap provided with an absorbent pad which becomes moistened by the liquid when the device is used, comprises a rigid cap over the perforated crown of which a disc of textile material has been stretched by means of an endless inextensible straining ring which has been forced over and frictionally clamps the margin of the disc securely between itself and the wall of the cap. It is essential that the material of the disc be such as to enable the container to be inverted to moisten the disc without pouring the liquid so that the liquid can be sparingly applied to the material to be cleaned. An all woollen woven cloth is satisfactory. A thin-walled metal sleeve-like ring serves well. In the Figure, the dabber comprises a rigid metal cap 1 the crown of which is provided with a central perforation 2 and similar perforations 2a spaced round the central one. The wall 3 of the cap is pressed or deformed to form an internal and external screw thread whereby the cap is screwed on to the threaded neck of the container 4. A disc 5 of textile material is stretched over the crown and secured by the endless straining ring 6 of metal. The leading end 7 of the disc may be flared outwards to facilitate its passage down over the marginal portion of the disc whilst its trailing edge may be slightly inturned as shown. The cap is adapted to be sealed round the mouth of the container by means of a centrally holed sealing disc 8 e.g. of cork, which is disposed in light surface contact with the crown and covers the perforations therein or all save the central perforation. An outer imperforate sealing cap, Fig. 3 (not shown), may be frictionally engaged over the disc of textile material with the straining. The textile material may be compressed against the crest of the external helix by the straining ring.
Patent GB-782457-A (GB)
Title: Improvements in or relating to artificial back teeth
IPC: A61C13/097
Filed: 1955-04-02
Abstract: 782,457. Artificial teeth. APPENRODT, G. J., and WINTERS, H. April 2, 1955, No. 9679/55. Class 81 (2). Opposed molars are formed so that one has a chisel-like edge which engages in a complementarily shaped recess in the other. Thus the projections 11 on lower molars 10 fit into recesses 13 in the upper teeth 14. If desired, the teeth may be formed with two pointed ridges on one tooth engaging two acute-angled recesses in the opposing tooth (see Fig. 3, not shown). The set of molars is produced as a continuous ridge of appreciable length, suitably shaped to simulate separate teeth, and the appropriate length is cut off as required.
Patent GB-478099-A (GB)
Title: Improvements in or relating to the removal of scale from rolled metal, more particularly from billets or blooms
IPC: B21B45/04
Filed: 1937-04-06
Abstract: 478,099. Removing scale from metals. SCHLOEMANN AKT.-GES. April 6, 1937,. No. 9824. Convention date, April 22, 1936. [Class 83 (iv)] A rolled metal billet or bloom B is freed from scale by passing it through a pair of rolls- 1 inclined to the direction of movement of the work. This is fed by a roller table 7 and inclined rollers 8 which are grooved and pressed together by springs, lateral movement being prevented by a wall 9 equipped with rollers 10. In a modification the billet is fed in an upright position, the rollers 10 in this case supporting it.
Patent GB-673443-A (GB)
Title: Polymeric tetrafluoroethylene dispersions
IPC: C08F14/26
Filed: 1950-04-21
Abstract: Stable aqueous dispersions of polytetrafluorethylene or copolymers thereof with ethylene, isobutylene, trifluorchloroethylene, vinyl and vinylidene fluoride, vinyl acetate and acrylonitrile are obtained by polymerization under heat and pressure in an aqueous medium containing a water-soluble catalyst, e.g. disuccinic acid peroxide, ammonium persulphate and those described in Specifications 572,265, 574,688 and 631,570, and as a modifier 0.1-12 per cent on the aqueous medium, of a saturated hydrocarbon having more than 12 carbon atoms and which is liquid under the polymerization conditions, e.g. tetradecane, cetane, octadecane, eicosane, paraffin wax and white mineral oil. Promotors, e.g. sodium bisulphite with ferrous sulphate and dispersing agents, e.g. ammonium or alkali metal salt of polyfluorocarboxylic acid having the formula H(CF2)nCOOH, where n is an even number from 6 to 10, may be present.  In an example tetrafluorethylene is introduced continuously into the polymerization reaction which takes place under pressure.  The modifying hydrocarbon may finally be removed from the surface of the dispersion together with entrained coagulated polymer.  The dispersions may be used for making films and for coating, fabrics, wood, ceramics, carbon and metals, e.g. wire, foils, chemical reactors, pipe-lines, and porous castings. Fabrics, particularly glass fabrics, may be impregnated or coated, for use as fuel pump diaphragms, resistor cores, laminates, or casting moulds for low melting metals.  The dispersions may be used as adhesives for polytetrafluorethylene sheet, mica, metals and ceramics, e.g. a polytetrafluorethylene surface may be joined to a solid by a dispersion containing at least 10 per cent polymer, drying at a temperature below 100 DEG  C. and then heating to above 327 DEG C.ALSO:Polyfluorocarboxylic acid H(CF2)nCOOH (where n=6 to 10) is prepared by oxidizing with permanganate, a polyfluoroalkanol obtained by heating at a temperature between 75 DEG  and 350 DEG  C. in the presence of a free radical-producing catalyst, a mixture of methanol and tetrafluorethylene.  Ammonium and alkali metal salts are used as dispersing agents.
Patent GB-198858-A (GB)
Title: Improvements in or relating to condenser-tubes cleaning apparatus
IPC: F16K11/048
Filed: 1922-04-06
Abstract: 198,858. Brearley, D. B. April 6, 1922. Cleaning, fiuid-pressure processes for.-An apparatus for cleaning condenser tubes by spraying into them a jet of high-pressure water comprises a casing 1 having a connection 2 by which the water is admitted and a tapering dischargetube 4, screwed to a connection 3 of the casing 1, by which it is discharged into the tube to be cleaned. Communication is controlled by a hand- - operated disc-valve 11 co-operating with a seat 10 in the casing and normally held open by an adjustable tension-spring 22. The Figure shows the apparatus while being transferred from one tube to another, with the handle 19, for operating the disc-valve 11, depressed against the action of the spring 22. Should the tube being cleaned become choked, the water escapes to atmosphere at 27 past an adjustably loaded spring relief-valve 28 spigoted over one end of the spindle 12 of the valve 11. A tight fit is made between the apparatus and the end of the condenser tube by an interchangeable conical pad 9 of rubber, lig- . num-vitas, or copper, held between the spraying nozzle 7 and the end of the discharge tube 4, which permits the apparatus to be used with tubes of different diameters. A whirling motion is given to the jet by ribs 8 on the interior of the nozzle. The Provisional Specification also states that the casing may be provided with two or more discharge tubes by which two or more tubes may be cleaned simultaneously.
Patent GB-554108-A (GB)
Title: Dump wagon
IPC: B60P1/14
Filed: 1942-07-15
Abstract: 554,108. Dump wagons. LE TOURNEAU, Inc., R. G. July 15, 1942, No. 9865. Convention date, Aug. 1, 1941. [Class 108 (i)] The body 5, which is bottomless and is loaded when over a platform 4 of the wagon, is moved rearwardly to dump the load by means of a forwardlymoving multiple-sheave block 10 operated from a fixed multiple-sheave block 9 by a cable winch on the tractor-vehicle hauling the wagon, the sheaveblock [10] being connected to the body 5 by a cable 13 secured at its ends to the body-posts 7 and passed round fair-leads 14 and 15, mounted on the wagon tongue 2, to the sheave-block 10.