baber/WOPTO huggingface dataset:
Patent GB-750642-A (GB)
Title: Improvements in bipolar electrolysers
IPC: C25B9/20
Filed: 1954-02-12
Abstract: 750,642. Electrolytic cells. NORA, O. DE. Feb. 12, 1954, No. 4279/54. Class 41. In a bi-polar electrolyser of filter-press type two permeable diaphragms are introduced between the anode and the cathode compartments of each single cell so as to constitute an intermediate compartment delimited by the said diaphragms and in direct communication with the atmosphere, in such a way that the small fractions of gas tending to diffuse from the anodic to the cathodic compartment and vice versa are captured in the intermediate compartment and forced to discharge into the free atmosphere. In an illustrated embodiment a single cell is formed by the frame 1 and the main electrodes 2 and 3. The electrodes 2 and 3 are pressed against the frame 1 with the interposition of gaskets 5 and they act as partition walls between the cell under consideration and the adjacent cells. Auxiliary electrodes 21 and 3<SP>1</SP> are supported by the main electrodes by studs 4. Thus a face of one of the main electrodes together with its respective auxiliary electrode into which the current flows constitutes the cathode of one of the two cells which it separates, whereas the other face of the same main electrode together with its other auxiliary electrode (not shown) forms the anode of the contiguous cell. By applying a difference of potential to the end partitions of the battery of cells the electrolysis current passes through all the cells. The two diaphragms 6 and 6<SP>1</SP> delimit an intermediate compartment 7, between the anodic compartment 8 and the cathodic compartment 9, which is in communication with the atmosphere through relief tube 30. The oxygen and hydrogen discharged at the anode and cathode are conveyed through pipes 11 and 10 respectively to separating tanks 14 and 13 (latter not shown) where any electrolyte conveyed by the gaseous currents separates from them, re-descending through pipes 15 and 16 to re-enter the electrolytic cell. The oxygen and hydrogen leave the separating tanks through pipes 22 and 21, respectively, and enter tank 41, containing water, through bubblers 27 and 28 located in compartments 23 and 24. Pipe 30 relieves any gas that might tend to diffuse from one compartment of the electrolytic cell to another. Any electrolyte that might be carried into pipe 30 by gas bubbles discharges into tank 31 and returns to the cell through pipe 40 (not shown).
Patent GB-508234-A (GB)
Title: Tooth brush
IPC: A46B9/04
Filed: 1938-02-11
Abstract: 508,234. Tooth brushes. LOEFFLER, A. Feb. 11, 1938, No. 4327. [Class 19] A tooth brush comprises a short flat handle 17 with a ring 15 and a convex stock 20 riveted at 21 as shown, and with a guide 23 slidable on the handle. In a modification, Fig. 3, the guide is further provided with a set of bristles 26 facing the others 27. In another modification, 7 rubber bristles attached to a niat replace the bristles 22 of Fig. 1.
Patent GB-110485-A (GB)
Title: Improvements in Record Cabinets.
Inventor: BREXENDORF ALEXANDER MAX
IPC: A47B81/06
Filed: 1917-03-26
Abstract: 110,485. Brexendorf, A. M. March 26, 1917. Cabinets. - A cabinet for disk records of phonographs comprises a casing 10, 11, 13 in which is mounted a revoluble container 14 having a hollow centre post 15 through which a spindle 16 extends and a number of side posts 21 between which shelves 22 are mounted. The shelves are separated by staggered spacing strips 23 so that the edges of records are presented alternately at cut out portions 24 of successive shelves. The shelves are held in position by hinged edge strips 25 which are locked by means of sliding bolts 27 engaging the top plate of the holder. The strips 25 may also be attached by screws. The doors 30 of the cabinet are interconnected by links 32, the pivot of which moves in a slot 35<a>. Friction stops comprising spring- pressed balls 38 are mounted below the container to retard its rotation.
Patent GB-1577396-A (GB)
Title: Alcoholic disinfectants
IPC: A01N37/40
Filed: 1978-02-03
Abstract: The novel sporicidal disinfectants contain one or more odourless or low-odour aromatic percarboxylic acids in an alcoholic solution. The alcohols used have 1 to 4 carbon atoms. The abovementioned percarboxylic acids are defined in Patent Claim 1.
Patent GB-681881-A (GB)
Title: Improvements in or relating to polishing machine
Inventor: STIEGLITZ HENRY C
IPC: B24B21/00
Filed: 1951-02-23
Abstract: 681,881. Abrasive-band machines. THOMPSON PRODUCTS, Inc. Feb. 23, 1951, No. 4423/51. Class 60. An endless abrasive-belt polishing machine has pulleys 21, 23, 28 for supporting and driving the belt 20 and a slide 15 provided with a hub 17 for rotatably-supporting the workpiece W to be polished. As applied to polishing the convex surfaces 2 on the blades V of an impeller W, the impeller is supported rotatably on the hub 17 on the slide 15 which is slidable on rods 14 fixed by brackets 13 above a base 10a so that the blades V of the impeller may, successively, be fed from an indexing and loading position to a position over the edge of the base and in the path of the belt. The latter is influenced to engage the blade by a spring 31 which rocks a .pivot-lever 29 carrying the pulley 28 when a bellcrank lever 36, 39 has been released from the position, illustrated in broken lines in Fig. 1, in which pulleys 35 thereon hold the belt away from the blade. After each polishing operation, the belt is disengaged from the blade in the polishing position by depressing the lever 36, 39 until it displaces a bolt 41, Fig. 2, which is spring-pressed to return to its initial position after the lever has passed so as to retain the lever in the depressed position until withdrawn by hand-pressure applied to a pin 44 carried by the bolt. An abutment 48 on a housing for the bolt 41 lies in the path of a lug 39a carried by the lever 36, 39 to limit the movement of the limb 36 of the latter away from the belt under the influence of gravity. After displacing the belt from the polishing position, the slide 15 is traversed to carry the polished blade V out of the path of the belt, and an indexing plunger 51, Fig. 2, which is carried by the slide 15 and engaged between two of the blades V, is withdrawn by hand-pressure applied to pin 55 thereon. The impeller is then indexed and the pin 55 released to carry a pad 56 of soft material on the plunger 51 into the path of the blades V. A motor 22, supported from beneath the base 10a by a bracket 10d, drives the belt 20 which can be adjusted by varying the position of an arm 24 for the pulley 23 in a slot 25a provided in a bracket 25 secured to the base 10a.
Patent GB-1083201-A (GB)
Title: Production of benzimidazoles
IPC: C07D235/18
Filed: 1965-02-02
Abstract: Benzimidazoles, or 2-substituted benzimidazoles are prepared by the vapour phase reaction of o-nitroaniline, or a nuclear substi-tuted derivative thereof, with an aldehyde or carboxylic acid, or a precursor thereof, in the presence of hydrogen and a catalyst which is a metal of the platinum group supported on a carrier.  The reaction is generally effected at 280-450 DEG  C. Specified nuclear substituents of the o-nitroaniline are halogen atoms and alkyl and alkoxy groups.  Specified aldehydes include olefinic aldehydes, which are hydrogenated to the saturated aldehyde during the reaction, and substituted aldehydes. Alcohols which dehydrogenate in the presence of the Pt group metal catalyst may be used as aldehyde precursors.  1 - Hydroxy - 2 - methylbutan-3-one may be used as a source of formaldehyde. Suitable carboxylic acids include olefinic and substituted acids. The acid may be used in the form of its esters or amide. When an aldehyde reactant is used the initial reaction is the formation of a Schiff's base and the process mfy be effected in two stages, the first being the formation of the Schiff's base in a pre-heating zone in the presence of a dehydrating material, and the second the passage of the Schiff's base over the hydrogenation catalyst. Examples relate to the preparation of benzimidazole, and 2-phenyl-, 2-furyl-, and 2-methyl-benzimidazole.
Patent GB-640320-A (GB)
Title: Improvements in the reclamation of alloys from composite alloy materials or articles
IPC: C22B7/00
Filed: 1948-02-16
Abstract: 640,320. Recovering metals from scrap. HARRIS, E. P., and TROSTLER, F. J. Feb. 16, 1948, No. 4453. [Class 82(i)] [Also in Group XII] A process of reclaiming metals or alloys from composite materials or articles consisting of the metal or alloy and "dross," consists in subjecting the materials or articles to treatment to loosen and/or melt the metal or alloy component and to a physical disruption to break down their physical structure, and then mechanically separating the buoyant dross from the surface of a bath of substantially the same composition as the metal or alloy to be reclaimed. This bath may be formed by accumulation of metal or alloy being reclaimed or it may be provided separately. The "dross" may include copper wires, insulating material such as pitch, rubber or paper, from electric cables or paste separators and/or glass of electric accumulators. Apparatus for carrying out the process may comprise an inclined rotary drum 1, heated and open at its ends, a collecting pot 2 into which the drum discharges its contents and means for skimming dross over a weir at one end of the pot. This means may be a rotary paddle 4, the weir 5 being shaped to conform to the path of the paddle tips. The edges of the blades may be serrated and the blades themselves perforated to allow molten metal or alloy to drain back into the pot. Rotary paddles 3 may be mounted above the bath to move the dross towards the weir and to depress or submerge it in the molten bath.
Patent GB-112553-A (GB)
Title: Improvements in Cloth Stentering Chains and Guid Rails therefor.
Inventor: FARRELL ERNEST
IPC: D06C3/04
Filed: 1917-03-28
Abstract: 112,553. Farrell, E., and Dod, G. March 28, 1917. Tentering.-Tentering-chains and their guiderails are so constructed that the pull and weight of the fabric on the clips or pins is borne by roller members arranged on the chain links on each side of the plane of the fabric. In the form shown, each clip has arms d', d<2>, and the arms of adjacent clips are pivoted on a hardenedsteel pin g carrying hardened-steel rollers h arranged above and below the plane of the fabric d<3> and guided in race-ways c formed in members a<2>, a<3> of the guide-rail. The rollers h may be mounted on ball-bearings on the pins g, and they may have convex or coned surfaces, or the ends of the pin g may be bent to receive them, the race-ways c being made to correspond with their form or disposition. Rollers i moving in grooves in the rails may be mounted on the underside of the clips. The link plates d and the pawl-supporting arms may be made of wrought iron or steel forgings or stampings riveted, soldered, or welded together. In a modification, each link is provided with a single roller mounted above or below off-set members on the connecting-arms of the links and adapted to engage a vertical part of the race-way, the plane of the fabric intersecting the axis of the roller at about its centre. In another modification, ordinary links are provided with rollers mounted on the pivot pins or on pins secured to the links, the rollers being above and below the plane of the fabric.
Patent GB-592492-A (GB)
Title: Improvements in ribbon microphones
IPC: H04R9/08
Filed: 1944-03-10
Abstract: 592,492. Microphones. GENERAL ELECTRIC CO., Ltd., and JULIAN, T. A. March 10, 1944, No. 4484. [Class 40 (iv)] In a ribbon type microphone wherein the ribbon lies between a pair of polepieces, the latter are supported on the magnet by magnetic forces alone. In the example, soft iron plates 2 and 3 are held to the magnet solely by magnetism and soft iron rods of circular cross-section are held in recesses in these plates in a similar manner. Insulating plates 6 and 7 are screwed to the ends of these rods and carry the ribbon 9 which is connected by leads 10 to a transformer 11. A wire gauze shield 12 surrounds the ribbon.
Patent GB-986267-A (GB)
Title: Improvements in or relating to extruders
Inventor: BENNETT WILLIAM DOUGLAS
IPC: B29C48/12
Filed: 1961-02-08
Abstract: 986,267. Extrusion dies. DUNLOP RUBBER CO. Ltd. Feb. 2, 1962 [Feb. 8, 1961], No. 4649/61. Heading B5A. In an extrusion die the passageway 2 connecting the orifice 3 to the extrusion head has a transverse cross - sectional profile similar to that of the orifice 3 and contains at least one cutting element 5 to cut the material axially and positioned so that the material may recombine before being extruded. The cutting element blades 5, 7 have diamond shaped cross-section with the larger diagonal parallel to the passageway axis and the blades extend from the wall almost to the axis. With a cylindrical passageway, four blades are disposed along two mutually perpendicular diameters such that each blade makes an angle of 45 degrees with the vertical. Each blade 7 is formed on a shaft 9 which slides adjustably in a hole 11 and is locked in position by a compressible ring 12. In a modification for extruding thread strip, vertical knife blades are disposed at intervals across the passageway. A compensating passage having a transverse cross-sectional profile which is the inverse of the profile of the die orifice is fixed between the extruder barrel and the passageway to ensure that there is a substantially uniform flow of rubber across the whole width of the orifice. Specification 974,822 is referred to.
Patent GB-868064-A (GB)
Title: Extrusion and drawing of beryllium
Inventor: SACKMAN JOHN FREDERICK
IPC: B21C23/32
Filed: 1958-02-13
Abstract: 868,064. Plating beryllium. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 29, 1959 [Feb. 13, 1958], No. 4760/58. Class 41. [Also in Group XXII] After cleaning by immersion in trichlorethylene and treatment by mineral acids, and washing, a billet of beryllium is plated in a heated alkaline bath containing silver or gold cyanide.
Patent GB-1248166-A (GB)
Title: An inking apparatus for stamping or printing machines
IPC: B41K3/56
Filed: 1969-01-28
Abstract: 1,248,166. Inking pad. ERNST REINER K. G. FEINMECHANIK UND APPARATEBAU. 28 Jan., 1969 [27 March, 1968; 17 April, 1968], No. 4767/69. Heading B6C. Inking pad 3 is inset into ink-impregnated resilient reservoir 1 and overlies a part 1<SP>11</SP> of reservoir 1 which is of reduced thickness. Reservoir 1, base 6 and optional end-walls 6<SP>1</SP> are all of thermoplastics material and pad 3 is preferably of a hair felt. Application of type to pad 3 causes the ink in part 1<SP>11</SP> to be squeezed through holes 5 into pad 3, then replenished from the main part of reservoir 1. The unit comprising pad 3, base 6 and reservoir 1 may be replaceable in a printing machine and may have a sliding lid which protects it until it is placed in position.
Patent GB-122547-A (GB)
Title: An Improved Overgarment or Cloak.
Inventor: GROVE GEORGINA ANNIE
IPC: A41D3/02
Filed: 1918-08-09
Abstract: 122,547. Grove, G. A. March 19, 1918. Sleeping-bags.-A garment or cloak of the kind that can be converted into a sleeping-bag, ground sheet, or small tent is formed of an outer, preferably rectangular, waterproof sheet A, provided with eyelet holes 1, 2, 2', 5 along its edges and with a hook &c. 3 and eyelet or loop 4. Attached to the inside of this sheet, on its inner side, by means of buttons II and button-holes III is a smaller sheet B, preferably of woollen material, provided with holes, through which loops d, attached to the outer sheet, pass to carry a belt or cord D. The sheet B has angular slits C. To form a sleeping-bag, the sides are secured together by strings fastened through the eyelets 2, 2<1>, and the bottom by lacing the cord through the eyelets 5.
Patent GB-907835-A (GB)
Title: Preparation of metal halide polymerization catalyst components
IPC: C08F4/68
Filed: 1959-02-12
Abstract: An atmospheric stable polymerization catalyst component is prepared by blending under inert conditions: (A) a preformed linear polymer of ethylene, an alpha-olefinic polymerizable compound or a 1:3-diolefinic polymerizable compound, (B) a solvent for said polymer and (C) a finely-divided preformed solid halide of a Group IVa-VIa transition metal, the A:B:C weight ratio being in the range of 0,1:1:1 to 10:200:1.  The stabilized halide component is used in conjunction with a Group I-III organometallic cocatalyst.  In Examples, (1), (5), (6) AlEt3 or Ali-Bu3 and polypropylene/n-heptane/VCl3 or TiCl3 are used to polymerize propylene, (2) AlEt3 and polystyrene/benzene/TiCl3 are used to polymerize styrene, (3), (4) AlEt3 and polyethylene/n-heptane/TiCl3 are used to polymerize ethylene.  Other catalyst components, monomers and solvents are also mentioned.
Patent GB-485697-A (GB)
Title: Improvements in drawing arrangements for preparing and spinning frames
IPC: D01H5/22
Filed: 1937-02-18
Abstract: 485,697. Drawing-mechanism for preparing and spinning machines. DEVAUX, P. Feb. 18, 1937, No. 4931. Convention date, Aug. 31, 1936. [Class 120 (ii)] In drawing-mechanism for preparing and spinning machines wherein rollers arranged close to the nip of the front rollers are driven magnetically, one or more of the rollers consist of a permanent magnet or electromagnet. The roller 10 may be in one piece or may consist of a sleeve-shaped magnet keyed or loose upon an axle, and is driven by a shaft 40 of diameter the same as the normal rollers. The shaft 40 and magnet 10 may be smooth, or of fluted or like form. The rollers 10, 11 are preferably of a length to serve two spindles and are carried by forked members 18 adjustably secured to the cap bars. The roller 11 may be of magnetic material if considerable pressure is desired, or of non-magnetic material or covered with insulating material of nature or thickness in accordance with the desired lesser pressure. Relative speeds may be ensured between the roller 10 and the preceding roller by suitably choosing the sizes of the contact surfaces of them as in the arrangement shown in Fig. 5, wherein the roller 10a is also a magnet.
Patent GB-1434485-A (GB)
Title: Stable pumpable slurries of ethylene oxide polymers
IPC: C08L71/00
Filed: 1974-02-04
Abstract: 1434485 Slurries of ethylene oxide polymers UNION CARBIDE CORP 4 Feb 1974 [5 Feb 1973] 04966/74 Heading C3R A stable slurry formulation comprises (a) a particulate water-soluble ethylene oxide polymer having an average M.Wt. greater than 500,000 and a true density of 1À15-1À26 g./ml.; (b) an inert liquid vehicle which is a non-solvent for said polymer, said vehicle being a mixture of at least 2 mutually soluble liquids, or a solution of a solid in a liquid, characterized in that the density of the vehicle is from 96À5% to 103À5% of the density of said polymer, said vehicle being present at a total volume per unit volume of said polymer powder which exceeds the void volume of said polymer by at least 3% but by less than 500%; and (c) a thickening agent which is non-reactive with (a) and (b) in an amount of 0-3¢% by weight based on the weight of the slurry. Polymer (a) may be a homopolymer of ethylene oxide or a copolymer thereof with one or more polymerizable olefin monoxide comonomers. Desirably at least 85% wt. of (a) passes through a 20 mesh screen. Vehicle (b) may be a mixture of (1) a liquid having a density less than that of the ethylene oxide polymer, e.g. alkane diols, dipropylene glycol, butane or hexane triol and water-soluble polyalkylene oxides of M.Wt. 200- 20,000, with (2) a liquid or solid having a density greater than that of the said polymer, e.g. glycerine, hexane hexol, erythritol, pentaerythritol, ethylene carbonate, and ethylene chlorohydrin. Preferred vehicles are solutions of K 2 HPO 4  in ethylene glycol or a mixture of glycerol and propylene glycol. Suitable thickening agents include colloidal silica, colloidal silica-alumina mixtures, chrysotile asbestos, colloidal clays such as montmorillonite, modified clays of the magnesium aluminium silicate type, microcrystalline asbestos, microcrystalline nylon, hydroxypropylcellulose, propylene glycol derivative of alginic acid, and polyvinylpyrrolidone. Additional agents include ultraviolet light screening agents, antioxidants, corrosion inhibitors and dyes. In the examples slurries are prepared from (a) poly-(ethylene oxide), (b) a mixture of propylene glycol and glycerine and (c) colloidal silica. Uses.-Reducing the hydrodynamic drag of water undergoing turbulent flow, e.g. in conduits, in pumping systems.
Patent GB-825939-A (GB)
Title: Improvements in crystal filters
Filed: 1956-02-17
Abstract: 825,939. Crystal filter circuits. GENERAL ELECTRIC CO. Feb. 17, 1956 [Feb. 18, 1955], No. 5029/56. Class 40 (8). [Also in Group XL (c)] A driving circuit for a crystal filter comprises a resonant circuit formed by an inductance connected in parallel with two other series-connected reactive impedances. The circuit may be used for separating a fundamental frequency from bursts of television colour information. The input signal is applied across the inductance, and the crystal with its terminating network are connected in parallel with one of the reactive impedances. In the circuit of Fig. 1 the reactive impedances consist of a capacitor 30 and inductor 32. These are effectively in parallel with inductor 26 and are tuned to resonate with the inductor across which the signal is applied. The crystal 36 and its series-resonant terminating circuit 48, 50 are together resonant at the signal frequency and are connected in parallel with the inductor 32. The overall Q of the circuit may be lowered if necessary by insertion of a resistor 56 of appropriate value. The capacitance of the crystal 36 is neutralized by means of a capacitor 46, having the same capacitance as the crystal, and an inductor 44 which forms a bifilar winding with the inductor 32. Alternatively, the crystal capacitance may be neutralized by connecting across it an inductance which resonates at the signal frequency with the capacitance. In the circuit of Fig. 2 (same reference numerals as Fig. 1) the (additional) blocking capacitor 62 has negligible reactance at the signal frequency so that the inductors 26, 32 may be considered as connected to a common point. A resistor 64 is provided to prevent short-circuiting of the signal between this common point and earth. The capacitor 60 and inductor 32 form a series circuit and are chosen to resonate with the inductor 26. In a modification of the circuit of Fig. 2 (Fig. 3, not shown), the function of the inductor 26 and resistor 64 is connected to ground through an additional capacitor which forms a resonant circuit with the capacitor 60 and inductor 26. In addition, the inductance 32 is made to appear as a relatively high resistance by connecting between the extremes of the inductors 32, 44 an additional capacitor to produce parallel resonance at the signal frequency. In a modification of the circuit of Fig. 1 (Fig. 4, not shown) the inductor 32 is shunted by a capacitor which together with the capacitor 30 and the inductor 26 forms a parallel circuit resonant at the signal frequency. The crystal is in the form of a bevelled plate, the bevelling being such as to reduce all spurious responses of the crystal to a negligible amplitude for a frequency region within which the bursts have an appreciable amplitude.