baber/WOPTO huggingface dataset:
Patent GB-811818-A (GB)
Title: Improvements in or relating to pressure-operated electric switches
Inventor: BECK RUDOLF
IPC: H01H35/34
Filed: 1957-04-12
Abstract: 811,818. Diaphragm pistons. MANNING, MAXWELL & MOORE Inc. April 12, 1957, No. 12022/57. Drawings to Specification. Class 122 (1). [Also in Group XXXVII] A piston-diaphragm used to actuate an electric switch (see Group XXXVII) on fluidpressure increase, comprises a layer of tetrafluoroethylene on the pressure side, face-toface with a layer of glass fabric coated with tetrafluoroethylene.
Patent GB-181202-A (GB)
Title: An improved construction of holder for stropping razor blades
IPC: B24D15/10
Filed: 1921-04-27
Abstract: 181,202. Sanders, G. April 27. 1921. Razors, safety. - A holder for stropping safetyrazor blades comprises two similar strips a, b hinged together at c along their edges at the end remote from the handle portion which is formed by the swelled-out or spoon - shaped ends f of the strips. The two strips are locked together to clamp a blade between them by a catch or turn-buckle m pivoted in the strip a and passing through a slot n in the strip b. A blade d of the " Gillette " type is positioned between the strips by the embossed flanges of holes stamped in the strip a engaging the perforations in the blade and recesses k stamped in the strip b.
Patent GB-1191932-A (GB)
Title: Fine-Pored Filter Material
Inventor: FURTIG HELMUT
IPC: B01D37/02
Filed: 1967-03-15
Abstract: 1,191,932. Filtering medium. VEREINIGTE PHOSPHATDUNGERWERKE, VEB. 15 March, 1967, No. 12206/67. Heading B1D. [Also in Division Dl] The pore diameter of woven or felted cotton, nylon or PVC, nettlecloth or kalmuck is reduced to below 10<SP>-6</SP> cms. by precipitating silicic acid on to the fabric fibres. The fabric may be impregnated with silica sol, which is converted to silicic acid by treating with HCl, after drying. Or silicon tetrachloride is applied to the fabric, hydrolysed with water to form silica sol and silicic acid formed therefrom by applying. HCl. These processes may be repeated several times to achieve the desired pore size reduction. The fabric is then used to filter precipitated salts from chemically treated sea water, in sea rescues.
Patent GB-1372748-A (GB)
Title: Foot-operated pump electric switch and electrical connector for windscreen washing and wiping installations of vehicles
IPC: B60S1/48
Filed: 1972-03-16
Abstract: 1372748 Windscreen cleaning installations SWF-SPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU GmbH 16 March 1972 [19 March 1971] 12216/72 Heading A4F [Also in Division F1] A combined foot pump, switch, and electrical connector for a windscreen washing and wiping system comprises a resilient washer pump chamber 11 compressible by an actuating plate 22 connected to the actuator 21 of a windscreen wiper control switch 20 located in a recess in the pump chamber wall and connected to an electrical connector socket 15 by a cable 18 disposed in a passage in the pump chamber wall. (For Figure see next page)
Patent GB-768636-A (GB)
Title: Improvements in the separation of mixtures of organic substances by fractional crystallisation
IPC: C07C7/14
Filed: 1955-04-28
Abstract: A process for the separation of mixtures of organic liquids by fractional crystallization consists in directly cooling the mixture with liquid carbon dioxide and then separating the crystal pulp so formed.  The mixture and the liquid carbon dioxide may be contained in a spiral pipe or pressure vessel and the pressure released, or the carbon dioxide can be allowed to escape from a pressure container through a jet so that it sucks in the mixture to be separated.  The temperature may be lowered to -78 DEG C. when the pressure on the carbon dioxide is released.  In examples (1) p-xylene is separated from a mixture of xylenes; (2) p-cymene is separated from impurities, such as m-cymene, 1, 2, 3-trimethylbenzene, p-a -dimethylstyrene and C10 hydrocarbons; (3) tertiary butyl alcohol is separated from isopropyl alcohol. Other substances mentioned are 1, 4-diethylbenzene, 1-methyl-4 ethylbenzene, p-methylstyrene, and p-a -dimethylstyrene, which may be separated from mixtures containing them.
Patent GB-231345-A (GB)
Title: Improved construction of extensible garment hanging rail for use in a wardrobe or the like
IPC: A47B61/02
Filed: 1924-05-20
Abstract: 231,345. Everitt, J. May 20, 1924. Garment racks.-In sliding racks of the type described in Specification 206,338 the inner end plate g<4> is provided with two rollers l, m and a roller o engaging the outer and inner faces of the underside of the guide, a, respectively. The roller o may be constituted by a transverse pin passing through a free hole in the end plate. The cap f is formed with a long bearing f<2> for the. rod g<2>.
Patent GB-369444-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H21/60
Filed: 1931-04-25
Abstract: 369,444. Mechanical switches without quick action ; switchboards. QUANTE, W., 353, Uellendahlerstrasse, Elberfeld, Wuppertal, Germany. April 25, 1931, No. 12326. [Class 38 (v).] In throw-over switches for controlling a plurality of circuits, in which a number of independently-operable switch levers h are mounted side by side on a common axis f, each switch lever is provided with a T-shaped contact member, with three contact blades i, k, l, adapted to engage corresponding spring contacts d<1>, d<2>, d<3>. The contact blades l are wide enough to remain permanently in contact with the contact springs d<3>, and are connected to the contact springs d<1> or d<2>, through the blades i or k, in accordance with the position of the switch levers. A removable bar n may be provided for coupling two or more of the switch levers together, the bar being secured to the rear surfaces of the barrels g carrying the switch levers and contact blades A writing tablet m, on which the positions of the levers may be marked, is disposed on the cover c.
Patent GB-1369882-A (GB)
Title: Roll gap measurement
IPC: B21B38/10
Filed: 1972-03-16
Abstract: 1369882 Rolling mills FRIED KRUPP GmbH 16 March 1972 [17 March 1971] 12377/72 Heading B3M  A transducer arrangement, which is suitable for measuring the roll gap in a four-high stand, includes a transducer housing carried jointly on the necks 3, 4 of a pair of work rolls, at each end of the rolls, each housing having arms 8 and 11 extending forwardly and rearwardly in the rolling direction. The arms 8 carry upper transducer parts 12, and are held by a spring-loaded bolt 16 and shell 14 to the roll neck 3, whereas the arms 11 carry lower transducer parts 13, and are similarly mounted on the neck 4. Each housing is located between the respective roll chock and the barrel portion of the roll. By having the transducer parts positioned between the arms, the housing can readily be applied to work rolls of small diameter. Centering webs maintain the transducer parts in a plane transverse to the roll axes.
Patent GB-830877-A (GB)
Title: Process for the manufacture of resorcinol
IPC: C07C37/04
Filed: 1958-04-18
Abstract: Resorcinol is produced by heating an aqueous solution of a water-soluble salt of 2,4-dichlorobenzene sulphonic acid with an alkali metal hydroxide at a temperature between 100 DEG  and 300 DEG C., preferably from 180 DEG  to 200 DEG  C., for a period sufficient to convert the dichloro-com-pound into a water-soluble salt of 2,4-dihydroxybenzene sulphonic acid, then acidifying the solution to liberate the free sulphonic acid, heating the acid solution between 100 DEG  and 300 DEG  C. to convert the dihydroxybenzene sulphonic acid into resorcinol, and finally separating the resorcinol from the reaction mixture, e.g. by extracting it with a water-immiscible solvent such as diethyl ether, di-isopropyl ether, benzene, or dichloroethane.  The 2,4-dichlorobenzene sulphonic acid may be obtained by the selective sulphonation of a mixture of m- and p-dichlorobenzenes obtained by fractionating the product produced by the vapour-phase chlorination of monochlorobenzene.  The selective sulphonation is effected by employing a quantity of sulphonating agent which is sufficient to react with from 50 to 95% of the m-dichlorobenzene in the mixture. The 2,4-dichlorobenzene sulphonic acid is then separated from the unreacted m- and p-dichlorobenzenes by extraction with an aqueous solution of sodium hydroxide.  Suitable sulphonating agents are liquid sulphur trioxide, solid sulphur trioxide, gaseous sulphur trioxide, sulphuric acid, oleum, chlorosulphonic acid, alkali metal pyrosulphates, and the adducts of sulphur trioxide with tertiary amines and with dioxane.  The unreacted mixture of m- and p-dichlorobenzenes may be cooled to 10-15 DEG  C. to crystallize the greater part of the para-compound, which is filtered off.  The filtrate is mixed with a fresh batch of metapara fraction, and returned to the sulphonation step. Although it is preferred to employ an aqueous solution of the sodium salt of 2,4-dichlorobenzene sulphonic acid for the dechlorination step, the other alkali metal salts may be used; and the salts of the alkaline-earth metals and of organic amines are also referred to.
Patent GB-1107655-A (GB)
Title: Improvements in or relating to medicaments adapted to act as a gastro-intestinal composition
IPC: A61K33/24
Filed: 1966-03-22
Abstract: A medicament intended for use as a gastro-intestinal composition consists of a mixture of polyvinylpyrrolidone, aluminium hydroxide and a bismuth salt, e.g. bismuth sub-nitrate. The proportion of each component may vary from 10-80% by weight. The medicaments, which are administered orally, may be in the form of a powder or tablet for dissolving in water, a lozenge or a suspension in water.
Patent GB-1562765-A (GB)
Title: Semi-permeable  membrane apparatus
IPC: B01D63/14
Filed: 1977-03-24
Abstract: The dialysis cell, intended in particular for haemodialysis, has a rigid housing (10) composed of a two-piece shell (22) having inlet and outlet orifices (14, 16, 18, 20) and two wedge pieces (30, 32). The latter interact with wedge surfaces (62, 64) of the shell and, with this, form a rectangular cavity for receiving a semi-permeable membrane (34). The membrane is folded into a multiplicity of layers which are sealed at the edges against the housing and form between themselves capillary channels (36, 38) for the through-flow of blood and dialysate to various membrane sides. The last membrane layer (46) extends between the wedge surfaces (60, 62) and is sealed against these. On assembly, the folded membrane is clamped in between the wedge pieces and is thus protected against damage. This type of construction makes possible the manufacture of a dialysis cell of small dimensions. <IMAGE>
Patent GB-648475-A (GB)
Title: A new or improved means for securing corrugated sheets and tiles to structural members such as purlins
IPC: E04D3/36
Filed: 1948-05-06
Abstract: 648,475. Hook bolts and rivets. COCKEN, S. May 6, 1948, No. 12471. [Class 89(ii)] [Also in Group X] Hook bolts and rivets for use in securing corrugated sheets to purlins and other profile bars have pointed ends that enable them to be used for punching the holes in the sheets during assembly. The hook is made by bending a rectangular section bar to U-shape 6 the distance between the limbs being slightly less than the thickness of the flange which the bolt 8 is to engage. The upper limb 61 is slightly longer than the lower and has welded to it a bolt 8 with pointed end 81. The hooks are hammered on to the flanges 71 in the required locations and the sheet 10 is located and lightly hammered in the vicinity of the ends 81 to make small projections visible from the upper side and a curved annular tool 11 is located round the projections and a hammer 12 is employed to cause the bolt to perforate the sheet. Fixing is completed by the usual curved washer and nut. The threads 82 may be omitted and the end 81 riveted over on to the washer.
Patent GB-1034523-A (GB)
Title: Signal storage tubes
IPC: H01J31/64
Filed: 1963-03-29
Abstract: 1,034,523. Signal storage tubes; semiconductor electrodes. RAULAND CORPORATION. March 29, 1963 [March 29, 1962], No. 12506/63. Headings H1D and H1K. A signal storage tube has a composite storage screen comprising a first fluorescent layer, a second P.-C. (photo-conductive) layer and a third layer exhibiting B.I.C. (electron bombardment induced conductivity). As described, the screen comprises (a) a wiremesh support 34, (b) a thin layer of fluorescent material 36 evaporated on to it (e.g. zinc sulphide, cadmium sulphide, cadmium selenide, aluminium oxide activated by aluminium), (c) a photo-conductive layer 37 which also exhibits B.I.C., e.g. barium fluoride, magnesium fluoride, antimony trisulphide, (d) a thin layer of aluminium foil 35. Alternatives:- (i) Fig. 2 (not shown), a thin conductive transparent layer 50 of gold bismuth oxide is positioned between layers 36, 37 to maintain potential on rear of layer 37. (ii) Fig. 3 (not shown), separate layers 51, 52 are used for P.C. and B.I.C. (iii) Fig. 4 (not shown), the mesh 34 is in the middle of the assembly with aluminium and phosphor layers 35, 36 facing the writing gun and layers 37, 50 facing reading gun. (iv) Fig. 5 (not shown), a semi-conductor screen comprises (a) a one-micron thick layer of zinc sulphide evaporated on to aluminium foil and doped by evaporation of 10<SP>-3</SP> to 10<SP>-4</SP>% of copper, gallium or indium to be fluorescent with a long after-glow, (b) a further layer of zinc sulphide evaporated on to it and doped with 0À1 to 1À0% of copper thermally diffused throughout the layer to exhibit photo-conductivity, (c) a final layer of zinc sulphide having an inherent bombardment-inducedconductivity property. (v) Fig. 6 (not shown), a layer 61 of aluminium oxide activated by aluminium to emit ultra-violet radiation may be used as the support and to take the place of the fluorescent layer.
Patent GB-559998-A (GB)
Title: Composite structural metal panel
IPC: E04C2/08
Filed: 1942-09-07
Abstract: 559,998. Composite metal panels. DEHN, F. B. (Vultee Aircraft, Inc.). Sept. 7, 1942, No. 12598. [Class 20 (ii)] A composite metal plate particularly for use in aircraft construction as a bulkhead comprises a thin plain metal sheet 11 bonded to an expanded metal sheet 13 having arched deformed portions spaced from the sheet by strands 15 which form the spaces in the sheet, the outstanding ridges being surmounted by channel-section cap-plates 17 welded thereto. The edge of the plate is stiffened by an angle section rim 10 welded to 'the flat plate and the ridges may be disposed either transversely or longitudinally.
Patent GB-780355-A (GB)
Title: Dissoluble preparation, a method for its manufacture and a solution manufactured from the preparation
Inventor: CEIMERTZ SVEN ERIK
IPC: C11D3/02
Filed: 1955-05-02
Abstract: 780,355. Bubble-blowing materials. KORPOSOFF,G. May 2,1955, No. 12654/55. Class 132(3) A preparation in tablet or powder form for dissolving in water to produce a bubble-blowing solution comprises, in percentages by weight, 10-84.5 fatty alcohol sulphonate, 10-75 borax, 5-35 gelatine, 0.5-25 gum tragacanth, and a small amount of preservative. With all the ingredients in powder form, the preparation may be produced by, mixing at room temperature the fatty alcohol sulphonate with the gum tragacanth, mixing the gelatine with the borax, and after mixing the two mixtures, heating the resulting mixture for about an hour to about 50-90‹C. The mixture is then allowed to cool and the preservative added prior to final stirring. The powder may be pressed into tablets in which case a dispersing preparation, preferably one producing carbonic acid, should be added to the mixture. The proportion of the preparation to the water in which it is dissolved should be 1:10 by weight.
Patent GB-992945-A (GB)
Title: Solid light amplifying apparatus
IPC: H05B33/26
Filed: 1961-04-07
Abstract: An electroluminescent light-amplifying apparatus comprises a plurality of heat-resistant insulating posts 8 each of which is formed with a sintered photo-conductive cadmium sulphide layer 2a, a line electrode 3a and auxiliary separate electrodes 7a, an electroluminescent layer 1 on one side of which are disposed separate electrodes 7 which are in contact with the auxiliary electrodes 7a by means of silver paint, a transparent electrode 4 on the other <PICT:0992945/C4-C5/1> side of the layer 1, and a voltage source 5 connected across the line electrodes 3a and the electrode 1. The posts 8 can be made of ceramic, the line electrodes 3a and the auxiliary electrodes 7a are fastened by silver paint, and the bottom surface of each post 8 is bonded to the separate electrodes 7 by epoxy resin.
Patent GB-698975-A (GB)
Title: Improvements in or relating to ultrasonic pulse echo systems
IPC: A61B8/00
Filed: 1951-05-30
Abstract: 698,975. Ultrasonic inspection devices. SPERRY PRODUCTS, Inc. May 30, 1951 [Aug. 17, 1950], No. 12708/51. Class 118 (ii). In an ultrasonic pulse-echo flaw detector comprising a cathode-ray tube indicator in which a common transmitting and receiving electroacoustic transducer is coupled to the work piece by a coupling having dimensions comparable to those of the work piece, the time-base for the cathode-ray tube is triggered by the echo produced by the front surface of the work piece so that the display is independent of variations in the propagation time through the coupling due to thermal changes variation in the spacing between the transducer and the work piece or variation of the direction of the transmitted beam. As shown in the figure, a quartz crystal transducer 12 and the work piece 20 are immersed in a coupling liquid, the transducer being connected to a synchronizer 10 and pulse generator 11 and via amplifiers 26 and 43 to the T-plate 27 of a cathode-ray tube 30 whose time-base circuit 38 is connected to amplifier 26 via a gate circuit 40 which is blocked during pulse transmission by a negative pulse derived from the synchronizer so that the time base is triggered by the first echo received. In place of the liquid coupling, attenuating solids such as plastic and lead or metals such as aluminium, steel and brass may be employed.
Patent GB-1127350-A (GB)
Title: Method of stripping dip-moulded articles from mould
Inventor: KEESLING THOMAS BELMONT
IPC: B29C37/00
Filed: 1966-11-28
Abstract: 1,127,350. Dip-moulding; stripping. BECTON, DICKINSON OF CALIFORNIA Inc. 28 Nov., 1966, No. 12719/68. Divided out of 1,127,348. Heading B5A. Dip-moulded articles are stripped from the formers by rolling an open upper end of the article along the mould to form a cuff, moving a stripping element into a position so that the cuff may be unrolled over it and moving the former and stripping element relatively. As shown in the Figures, the formers 14 are carried along an endless track 12 by endless chain 15, the stripper units 21 being carried synchronously along by endless chain 22. The former 14 passes into stripper unit 21 as they converge, and the article thereon, e.g. glove 16, is then gripped by arms 57 having a brush 81 and spade 82 at their ends which are rotated by bevel gears (Fig. 6, not shown) to roll the end of the article into a cuff (Fig. 12, not shown) and the lip of the spade 82 is inserted adjacent thereto. The cuff is then unrolled by opposite rotation of the brush 81, the arms 57 then being opened holding the glove (Fig. 14, not shown), and the article removed by relative movement of former and stripper unit. Movement of arms 57 &c. is effected by cams &c. adjacent the track (Fig. 17, not shown).
Patent GB-663111-A (GB)
Title: Improvements in or relating to means for securing fitments in place in constructionscomprising ceiling boards or the like
IPC: H02G3/20
Filed: 1949-05-12
Abstract: 663,111. Building board constructions. CHURCHMAN, H., and MERCHANT TRADING CO., Ltd. May 4, 1950 [May 12, 1949], No. 12746/49. Class 20(iv) In constructions comprising ceiling boards supported by runners such as are described in Specifications 661,063 and 663,109 two oppositely bowed members 16 and 17 are used to connect runners 12 and 13 thereby providing a circular space which may house a fitment, e.g. an electric light fitting or a junction box. The members 16 and 17 are secured to the webs of the runners by screws such as 24 and have flanges 18 on which a cover plate 26 is detachably mounted underneath the housing, the lower web of each runner being cut back to receive the cover plate. The cover plate supports. the adjacent building boards which are cut away as shown by the dotted lines 25 to clear the members 16 and 17.
Patent GB-444443-A (GB)
Title: Improvements in collapsible tube containers
IPC: B65D35/14
Filed: 1935-04-29
Abstract: 444,443. Collapsable tubes. WEIL, O., 6, Rue Balzac, Paris. April 29, 1935, Nos. 12759 and 12761. Convention dates, May 24, 1934 and Sept. 14, 1934. [Class 66] The neck b of a collapsable tube for containing scent &c. is closed by a partition c which is pierced from the inside to form a capillary orifice through which the contents can be sprayed. The partition may be formed separate from the tube and of different material and may have an internal or external projection d through which the orifice is pierced. The partition may be formed by dipping the neck in molten metal. The Specification as open to inspection under Sect. 91 describes an attachment l, Fig. 3 (Cancelled), affixed to the closed filling end to facilitate rolling up the tube, and as an alternative a strip m, Fig. 4 (Cancelled), of lead &c. engaged over the neck and folded with the closed filling end. This subject-matter does not appear in the Specification as accepted.
Patent GB-198878-A (GB)
Title: Lubricating arrangements for the crank cases or oil chambers of motor vehicles
IPC: F01M11/06
Filed: 1922-05-06
Abstract: 198,878. Goodwin, W. E. May 6, 1922. Levels, regulating.- In a lubricating - system for motor vehicles in which oil is supplied to a crank case, sump or other reservoir by a pump or forcing device drawing from another reservoir, a floatoperated valve is inserted in the pipe leading from the pump to the sump, whereby, when the level in the sump has reached a predetermined height, the supply of oil to the sump ceases and oil supplied by the pump returns through a pipe to the pump reservoir. The float chamber c is in communication with the sump d by a pipe c' and contains a float e which, through lever and link mechanism f, g, h, operates a valve i movable in a casing j. The valve i is cylindrical and provided with a reduced neck j<7>, and is hollow for passage of air. The casing j has a screwed cap j<x> bored at j<2x> and holding a gauge cap j<3x>. When the level in the sump is low, oil supplied from the pump b through a pipe j<1> and entering the valve casing through a port j<6>, passes through the neck j' and a port j<8> to a pipe j<2> leading to the crank case d<1>. When the level rises to a predetermined degree, the port j<8> is cut off and oil supplied by the pump passes back to the pump reservoir a through a port j<9> and pipe j<3>. A sight-glass j<4> is inserted in the return pipe j<3>. An indicator may be operated by the float to show the amount of oil in the sump. When applied to a Ford motor vehicle, the flange of the pipe c<1> may be fixed to the sump as shown in Fig. 1<a>, so that the usual Ford taps t may be fitted.