baber/WOPTO huggingface dataset:
Patent GB-677375-A (GB)
Title: Improvements in or relating to a process and apparatus for the circulation of mercury in electrolytic cells
IPC: C25B1/42
Filed: 1950-06-27
Abstract: 677,375. Liquid electrode apparatus. IMPERIAL CHEMICAL INDUSTRIES, Ltd. (Solway Et Cie.). June 27, 1950, No. 16010/50. Class 41. A process for the circulation of mercury in mercury cathode electrolytic cells comprises the application of a hydrogen pump for transporting the mercury from a mercury amalgamdecomposition denuding-cell, the mercury being elevated by the introduction at the bottom of the elevating column of hydrogen under pressure from the denuding cell. In the arrangement shown in Fig. 1, mercury flows from the denuding-cell 1 through a U-tube 2 and overflows into a vessel 4 which contains water from a reservoir 8. The mercury passes by way of pipe 5 into a column 6 where it is raised by hydrogen supplied through pipe 7 from the denuding-cell 1. The mercury is washed by water in the reservoir 8 and passes through tube 10 to the electrolytic cell 9. In the arrangement shown in Fig. 2 the hydrogen coming from the denuding-cell 1 is bubbled through mercury in the tube 3 which is enlarged to accommodate a wide tube 13 connected by a pipe 15 to the bottom of the column 6. Specification 623,121 is referred to.
Patent GB-1262614-A (GB)
Title: Improvements in or relating to reinforcement mats for concrete structures
IPC: E04C5/04
Filed: 1970-04-06
Abstract: 1,262,614. Reinforcement mat. BAU-STAHLGEWEBE G.m.b.H. 6 April, 1970 [11 April, 1969], No. 16114/70. Heading DIK. A reinforcement mat comprises longitudinal and transverse steel rods, the longitudinal rods 1' at one longitudinal edge region being on the opposite side of the transverse rods 2 from those 1 of an adjacent region. The edge region overlaps a portion of a second mat, the transverse rods 2 of both mats away from the overlap region lying in the same plane. Individual mats may be cut from a large mat (Fig. 5, not shown).
Patent GB-1520352-A (GB)
Title: Removal of organic impurities from aluminate liquor
IPC: C01F7/473
Filed: 1976-04-21
Abstract: 1520352 Aluminate liquor purification GIULINI GmbH GEBR 21 April 1976 [25 April 1975] 16150/76 Heading C1A Coloured organic impurities i.e. those comprising humic acid derivatives are removed from the aluminate liquor formed in or during the production of alumina by treatment of bauxite with sodium hydroxide by treating the liquor with a compound of magnesium to precipitate a mixture of the hydroxides of magnesium and aluminium, the mixture of liquor and precipitate is then agitated so that the organic compounds are at least in part removed from solution by the precipitate and hence the organic compounds are removed from the aluminate liquor along with the precipitate. The magnesium compound may be kieserite and the purification is of particular use in the Bayer process.
Patent GB-1465915-A (GB)
Title: Vortex air cleaner array
IPC: F02C7/05
Filed: 1974-04-11
Abstract: 1465915 Vortex separators PALL CORP 11 April 1974 [16 April 1973] 16184/74 Heading B2P A vortex air cleaner assembly for removing solid or liquid contaminant particles from an air stream comprises a housing 11, Fig. 3 defining a scavenge chamber 31 therewithin; a number of vortex air cleaners 10 arranged in the housing and each comprising a tubular body 23 having an inlet 24 and an outlet 28 and defining an airpassage 33; an angularly vaned deflector 26 disposed in the air passage at or adjacent the inlet to create a vortex in the influent air stream; a generally tubular clean air outlet member 27 disposed in the outlet 28 of the tubular body 23 and having an end 38 of smaller external diameter than the internal diameter of the tubular body, the member 27 defining with the tubular body an annular passage 30 for the reception of a peripheral flow of concentrated particle-laden air and its discharge into the scavenge chamber 31; and a flow restrictor 37 at or adjacent the entry to the annular passage defining an orifice adjacent the entry to the annular passage so as to maintain a higher pressure within the passage 33 of the tubular body than downstream in the scavenge chamber. In the air cleaner shown in Fig. 3, the housing 11 consists of a shell 14 to which are riveted tube plates 12, 13 having apertures 20, 21 for mounting the tubular bodies 23 of the air cleaners and their clean air outlet tubes 27. The tube plate 13 is shock-mounted to an inlet duct 4 at the air intake of an engine through rubber air seals 17 and bolts 18, access to which is by way of apertures 18a and removable plugs 18b in plate 12. The tubular body 23 may be wholly cylindrical, as shown, or tapered from its outlet to its inlet along at least a portion of its length. The deflector 26 may be bonded or press-fittted in the tubular body. The tubular body, the deflector and the outlet tube may be made of plastics examples of which are given. The flow restrictor is in the form of a circumferential flange or ring about the external periphery of the outlet tube, Fig. 3, or the internal periphery of the tubular body It can be shaped to present a perpendicular or forwardly or rearwardly sloping surface to flow. It can also be placed partially on the tubular body and partially on the outlet tube, Fig. 5, to define an orifice in the form of a passage which may be straight, curved, doglegged or tortuous, Fig. 8. Where large particles are present in the air stream, too large to pass through the orifice, a large opening can be provided in the flow restrictor by removing a segment thereof, or providing a passage therethrough of larger diameter than the orifice, in one or several locations.
Patent GB-476578-A (GB)
Title: Improvements in electrical switching means, more especially applicable to wireless tuning apparatus
IPC: H03J5/06
Filed: 1936-06-10
Abstract: 476,578. Mechanical switches without quick action for wireless sets. HOBBS, E. W. June 10, 1936, Nos. 16235 and 18507. [Class 38 (v)] [Also in Group XL] A switching device, specially suitable for wireless receiving sets comprises a number of contacts 29 mounted on the surface of a fixed insulating cylinder 16 and adapted to be selectively engaged one or more at a time by a flexible conductor such as 45 which is fixed at one end to the cylinder at 48 and drawn tight round the cylinder by a spring 49, the conductor passing also round a roller 39 (or several rollers) carried by a frame rotatable about the cylinder axis. In the position shown the conductor engages all the five contacts 29 excepting that opposite the roller 39. Rotation of the frame through steps equivalent to the distance between the contacts 29 brings each contact 29 successively out of engagement with the conductor, the other four contacts being in engagement with it. The five contacts 29 may be connected to five condenser 24, or to inductances. In the form shown, the cylinder 16 carries two other groups of contacts 30, 32, Fig. 4, adapted to be engaged by two other flexible conductors 46, 47. These are fastened to the cylinder in a similar way to the conductor 45, but pass round four rollers 37, 38, 40, 41 on the same frame carrying the roller 39. These four rollers keep the conductor 46 or 47 out of contact with four of the five contacts of the particular group, the contact opposite the roller 39 being the only one engaged by the conductor. Rotation of the frame brings each contact in turn into engagement with the conductor. The above device is shown incorporated in a wireless tuning set, the step-by-step rotation of the frame changing the range of tuning and being brought about by the continuous rotation of a cam 52 which carries pins 51 engaging the teeth of a wheel 50 on the frame. The periphery of the cam engages a pin 53, so as to rotate the shaft 23 of a variable condenser 20, 22. The shape of the cam is such that continuous rotation of it causes the variable condenser to move through its range and then to be brought back to its original position each time a pin 51 moves the frame on a step to bring a new range of tuning into operation. The cam is rotated by movement of a control knob co-operating with a dial, provision for fine adjustment being made. The cam comprises two insulating plates enclosing a conducting plate which projects in places as shown in Fig. 1, to close a circuit through the pin 53. The figures show one only of three tuning stages of the apparatus. The other stages are similar and are arranged behind the stage shown and are operated simultaneously by the operating mechanism already described.
Patent GB-595102-A (GB)
Title: Design of radio-frequency coils and coil formers adaptable to efficient mass-manufacturing
IPC: H01F27/02
Filed: 1945-06-26
Abstract: 595,102. Tubes for electric coils. HOLZER, R. C. de. June 26, 1945, No. 16235. [Class 120 (iii)] [Also in Group XXXV] A tube for carrying an inductance or transformer winding is made by bending a single lamination of plastic or paper or other fabric impregnated with plastic after polymerization of the plastic. The bending done optionally on a mandrel or core may result so that the adjacent edges are longitudinal or helical directed, and are gapped, abut or overlap, in which latter case they may be free or welded. The plastic may be celluloid, polythene, or "Bakelite" (Registered Trade Mark), or rubber (see Provisional Specification).
Patent GB-637979-A (GB)
Title: Improvements in and relating to closure caps for containers and locking means therefor
IPC: B60K15/04
Filed: 1948-06-17
Abstract: 637,979. Caps with locks; tank closures. WILMOT-BREEDEN, Ltd., and SATCHWELL, F. J. June 17, 1948, No. 16293. [Classes 21 and 125(iii)] A closure cap for a motor vehicle fuel tank &c. comprises an outer cap, a spring loaded inner cap for closing the container neck, the caps being relatively axially slidable, means on the outer cap for engagement in recesses beneath a flange on the neck and a key operable device in the outer cap for locking the caps against relative axial movement. In the form shown, an outer cap a fits over the neck b of the tank and has a number of inwardly directed pins c which, when the cap is turned to close the tank, engage inclined surfaces f to draw the cap downwardly and snap into recesses d beneath a flange e surrounding the neck. To allow removal of the cap the flange is slotted for the passage of the pins. An inner cap g is axially slidable within cap a, its periphery being urged into sealing engagement with a washer i by a spring j interposed between the caps. The outer cap is formed with an inner central cylindrical portion n housing a key operable locking cylinder o which carries a transverse bar p at its lower end. The central portion of the inner cap is of cup form and is formed with a pair of shoulders q which are engaged by the bar p when this is turned, by a key inserted in the locking cylinder, to lie across them as in the position shown. With the bar in this position, the closure is locked against removal since the outer cap cannot be depressed to free the pins c from the recesses d. To unlock the closure the bar p is turned through 90 degrees by the key. The outer cap can then be depressed against spring j, since the bar can now enter the recess between the shoulders, thus freeing the pins c from engagement in recesses d. A cover piece r protects the end of the locking cylinder.
Patent GB-120432-A (GB)
Title: Improvements in or relating to Ceilings and the like.
Inventor: CHRISTIN LOUIS
IPC: E04F21/02
Filed: 1917-11-07
Abstract: 120,432. Christin, L. Nov. 7, 1917. Ceilings. -A reed or like fabric forming the foundation for a ceiling is supported by wires b which are stretched under the fabric and are twisted around nails c projecting from the beams or other part of the floor. Similar wires f may be stretched above the fabric when the fabric is spaced from the beams. For concrete beams, the nails c are temporarily supported by sand in holes l in the bottom board of the mould.
Patent GB-798205-A (GB)
Title: Preparation of chloroprene
Inventor: BELLRINGER FREDERICK JAMES
IPC: C07C17/25
Filed: 1956-05-26
Abstract: Chloroprene is prepared by heating 3 : 4-dichlorbutene-(1) with an aqueous solution of an alkali in the presence of a salt of picric acid.  Suitable concentrations of picrate are from 0.1 to 1.0 per cent by weight, based on the volume of the reaction medium, and calculated as picric acid, the units of weight and volume bearing the same relation to each other as do kilograms to litres.  Picric acid itself may be added to the reaction medium, in which case the picrate corresponding to the alkali used will be formed, or a salt such as sodium or calcium picrate may be used. The reaction is preferably carried out by introducing 3 : 4-dichlorbutene-(1) into a solution of the alkali, such as a 10 to 20 per cent wt./vol. aqueous sodium hydroxide solution, containing a salt of picric acid, preferably with stirring or agitation.  The solution is maintained above the boiling point of chloroprene, i.e. about 60 DEG  C., which is distilled off as it is formed. Examples are given.
Patent GB-1481752-A (GB)
Title: Motor vehicle heater
IPC: F24H3/06
Filed: 1975-04-21
Abstract: 1481752 Motor vehicle heater; burners; water heaters W BAIER W BAIER L SCHOBER and E SCHLUMPRECHT 21 April 1975 [22 June 1974] 16353/75 Headings F4A F4S and F4T A motor vehicle heater comprises a housing 1 containing a burner unit 4, a combustion chamber 2 and a heat exchanger 3. Air to be heated is blown over the heat exchanger 3 by a fan 7. The burner unit 4 includes a housing 10 with an intake spigot 11 for combustion air, a combustion air blower 6 and a fuel pump 8 with an atomizer nozzle. The fuel is ignited by a sparking plug 12 located in a bore in the housing-1. The connected end of the sparking plug is enclosed in a chamber 15 which is gastight except for communication through a tube 20 with the-suction side of the combustion air blower 6. Any exhaust gases which leak from the region of the sparking plug 12 into the chamber 15 are sucked through the tube 20, blown into the combustion chamber 2 and thereby prevented from reaching the passenger area of the vehicle. The operation of the heater is as described in Specification No. 1,460,220. A modification is mentioned where there is a water heater instead of an air heater.
Patent GB-529602-A (GB)
Title: Brackets for curtain rails
IPC: A47H1/144
Filed: 1939-06-03
Abstract: 529,602. Curtain-rail brackets. BORTON, A. F. June 3, 1939, No. 16385. [Class 52 (v)] A curtain-rail bracket comprises an arm 1 with a claw 2 to engage one flange a<SP>1</SP> of a runner rail b, and a cam lever 3 pivoted at 5 to the arm 1 and movable to engage under the other rail flange a<SP>2</SP>. The lever is bossed at 6 to space its acting edge below the level of the rail flange, and has a thumb piece 8 and a projection 9 to hold it steady in its active position. The bracket may be a strip bent to form the squared apertured fixing base 10 and continued as a reinforcement 11 along the arm 1. Alternatively the arm may be apertured for vertical screws and extend from an apertured back fixing plate.
Patent GB-790791-A (GB)
Title: Pharmaceutical preparation and process for making same
Filed: 1955-06-07
Abstract: Potassium p-aminosalicylate is prepared by neutralizing an aqueous solution of p-aminosalicylic acid with an aqueous solution of potassium hydroxide, carbonate or bicarbonate to a pH between 7.5 and 8.0, precipitating the salt by addition of a lower aliphatic alcohol and/or ketone and removing the precipitate from the solution.  The process may be modified by dissolving the acid and base each in a water-miscible lower aliphatic alcohol, mixing the solutions and precipitating the salt by addition of a lower aliphatic ketone or ether.  The temperature during neutralization is preferably not allowed to rise above 40 DEG  C.  In an example pure p-amino salicylic acid dissolved in aqueous methanol is neutralized with potassium hydroxide and the required salt precipitated by addition of isopropanol.  Potassium p-amino salicylate so prepared may be used in anti-tubercular preparations.ALSO:Pharmaceutical preparations having antitubercular activity comprise from about 5 to 100 per cent of potassium p-aminosalicylate (for method of preparation see Group IV (b)), the balance being a pharmaceutical diluent.  The preparation may be administered in the form of tablets, pills, dragees, &c., using as adjuvants calcium carbonate, sugar, lactose, talcum, starch, bolus alba, magnesium stearate, pectin, gelatin, gum arabic, methyl cellulose, yeast extract, agar and tragacanth.  The preparation may be put up in resorbable gelatin capsules, or administered in aqueous syrup solution or parenterally in sterile water or saline.  Other tuberculostatic agents may be present such as streptomycin, dihydrostreptomycin and isonicotinic acid hydrazide.
Patent GB-112124-A (GB)
Title: Improvements in or relating to Pump-syringes for Medical, Surgical and like purposes.
Inventor: DAVID ISAAC
IPC: A61M5/31
Filed: 1917-11-08
Abstract: 112,124. David, I. Dec. 4, 1916, [Convention date]. Syringes.-The piston and the piston-rod are made hollow, the rear end of the rod being fitted with a flexible tube A which may be fitted with a pinch cock G. The nozzle N of the barrel is fitted with a flexible tube B to which a needle or other fitting may be attached. Stop cocks may be provided at C and M. The syringe is capable of use for injection or exhaustion by suitably controlling the valves at each stroke, or by applying finger pressure to the tubes A, B.
Patent GB-330392-A (GB)
Title: Improvements in and relating to cooking and heating appliances or the like, and utensils therefor
IPC: F24C15/10
Filed: 1929-05-29
Abstract: 330,392. Motley, L. May 29, 1929. Cooking - stoves; hot-plates. - A hotplate heated by gas or oil burners A is formed with flameholes 3 between upstanding projections 4, and the base 6 of the utensil 5 is provided with downward projections 7 which lie between the projections 4 and coaxially with the flame-holes. Lugs or flanges 8 on the utensil base ensure correct relative positioning of the projections 6 and 7. The base 6 may be detachably secured to the utensil, for example by a ring 10 screwed to it and formed in sections, and having an inclined inner edge engaging a correspondingly inclined flanged portion at the base of the utensil.
Patent GB-1474513-A (GB)
IPC: G11B11/00
Filed: 1975-04-22
Abstract: 1474513 Cassette for recording tapes KIENZLE APPARATE GmbH 22 April 1975 [24 April 1974] 16610/75 Heading B8M A cassette 1 comprises a housing defined by first and second walls 4, 5 and side walls 6, 7 and 8, 9 respectively, the housing mounting spools 20 and 20<SP>1</SP>, which carry wound tapes 14, and guide rolls 27, 28, 29, 38 for guiding the tape 14 from spool 20 to spool 20<SP>1</SP> when recording, wherein one of the side walls 6, 7 (sidewall 7 in this embodiment) includes an opening 10 for cooperation between the tape 14 and recording means such as recording electrodes 11 while one of the side walls 8, 9 (side wall 9 in this embodiment) is made of transparent material whereby the tape 14 is usually readable for a substantial distance of its travel. The guide roll 28 also serves as a recording support for the electrodes 11 and the guide roll 29 having an elastic bushing 35 also serves as an elastic support for a counter electrode 13. The side wall 6 can also be made of a transparent material but as shown includes a recess 39 which allows the application of marking labels. The cassette 1 is made of a hood part comprising walls 4, 6, 7, 8 and 9, and a bottom part comprising wall 5 only. Cut outs 17 and 18 serve to position the cassette 1 in the recording device or in an evaluating apparatus while recess 19 allows the cassette 1 to be placed into the recording device in one position only. The ends of the recording tape 14 may be clamped to respective spools 20, 20<SP>1</SP> by clamps 25, 26.
Patent GB-866668-A (GB)
Title: Improvements in or connected with graphs, charts and like indicating means
IPC: G09D1/00
Filed: 1956-05-30
Abstract: 866,668. Display charts. KUNA, J., and SPITZ, E. May 30, 1957 [May 30, 1956], No. 16691/56. Class 3(2) A graph or chart 1, 3 as described in Specification 773,353 is provided with an apertured backing panel 4, Fig. 2, to jointly receive elastic flow lines 7 which are secured by thin metal strips 8a and pegs 10 or 17, see Figs. 5 and 6 respectively. The flow line is positioned parallel to the panel by a beaded strip 15, see also Fig. 8 (not shown) and is used in association with strip-carrying title holders 20, see also Fig. 7 (not shown).
Patent GB-497096-A (GB)
Title: Improvements in brakes for automobile vehicles
IPC: F16D65/46
Filed: 1937-06-16
Abstract: 497,096. Brakes. FARKAS, P. June 16, 1937, No. 16742. Convention date, June 17, 1936. [Class 103 (i)] In a vehicle brake of the kind in which the thrust of one shoe is transmitted to the other by adjustable members, the shoes anchoring at one end of one or other of them on a stationary abutment, according to the direction of drum rotation, the abutment has substantially radial faces which are engaged only by the edge of the lining carrying surface of the shoe. The shoes 1, 2 are applied by a floating cam 5 slidable in the rotatable operating member 49 and engaging rollers 22, 23 on the shoe ends. A pair of adjustable thrust-transmitting members each comprises two parts 27, 29 and 28, 30 arranged to be screwed one into or out of the other by a pinion on a transverse shaft engaging a pair of part-spherical pinions 33, 34 on the squared ends of the parts 29, 30. The parts 27, 28 are forked to engage the shoes and the parts 29, 30 are slidable in the pinions and the casing 35 and abut on each other. The casing is mounted on the back plate through which the squared end of the shaft extends. The stationary abutment 14 for the lower ends of the shoes has radial surfaces 39, 40 with which the edge of the lining carrying surface of the shoes engages. The edges of the shoes are thus free to move outwardly on the abutment surfaces as wear occurs. The shoes are slit at 57 to enable the arc of the shoes to flatten to correspond with the wear, the deformation being maintained by resilient washers on bolts 58 passing through the shoe web. A resilient connection 43 is provided in the cam-operating link 42 to compensate for relative movements between the axle and chassis of the vehicle. The Specification as open to inspection under Sect. 91 describes a modification of the thrusttransmitting device in which each member comprises a single part, and the adjustment is effected by a wedge between the parts and carried by a rod freely mounted in a recess in a screwed rod. Also the thrust members may be in alignment instead of being inclined to each other. This subject-matter does not appear in the Specification as accepted.