baber/WOPTO huggingface dataset:
Patent GB-471591-A (GB)
Title: Improvements in or relating to the manufacture of coated and impregnated textile materials
IPC: D06M15/15
Filed: 1936-03-03
Abstract: Yarns or fabrics are treated with a solution of a degenerated or denatured vegetable globular protein in a specified solvent, the protein then being coagulated in or on the material by means of a dilute aqueous medium which will counteract the dispersive effect of the solvent.  The protein may be degenerated or denatured by the action of the solvent.  Solvents specified are urea, thiourea, methyl urea, sodium thiocyanate, sodium salicylate, formamide, acetamide and urethane.  Protective colloids such as glue or gum arabic may also be added.  A "spinning auxiliary" as defined in Specification 467,704 may be added to the protein solution to modify its viscosity, e.g. glyoxal polymer, formaldehyde, benzaldehyde, ethylene oxide, glycide, salicylic acid.  The coagulating bath may be water or dilute salt solutions, e.g. ammonium or sodium sulphate or sodium sulphite.  The treated material may have its mechanical strength improved by treating with a solution of formaldehyde, potassium dichromate, chrome alum, tannic acid &c.  In an example, cotton material is treated with a solution of ground nut seed globulin with urea and passed through a coagulating bath at 50 DEG  C. containing ammonium sulphate, zinc chloride, sulphuric acid and glycerine, rinsed, treated with a solution of glycerine, rinsed and immersed in formaldehyde solution for 18 hrs., washed and dried under tension.
Patent GB-124730-A (GB)
Title: Improvements in Cisterns for Flushing Water-closets.
Inventor: LARS SCHURMANN LANGE
IPC: E03D1/05
Filed: 1919-03-17
Abstract: 124,730. Lange, L. S. March 16, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Siphon-discharge water-waste preventers. - The rim of the bell 3 fits water-tight in the wall 6. When the bell is allowed to fall the flap valves 4 close and all the water in the bell is forced towards the flush pipe 2.
Patent GB-637620-A (GB)
Title: Improvements relating to reinforced concrete piles
IPC: E02D5/52
Filed: 1948-03-03
Abstract: 637,620. Reinforced concrete piles. RICHES, V. C. D. March 3, 1948, No. 6625. [Class 68 (ii)] A pile comprises a precast concrete main pile A and a bottom unit C and may have one or more extension units B, the main pile having a reinforcing bar with a screwed end to which a washer D and sleeve E are attached, an extension unit B, or the bottom unit C, being screwed to the lower end of the sleeve E. In assembling the pile, the unit A is lowered and the rod B<SP>5</SP> guided into the bore B<SP>6</SP> of an extension unit B or of the bottom unit C, a gauged quantity of cement being poured into the conical recess B<SP>2</SP> or C<SP>2</SP>, the weight of the pile unit being sufficient to ensure tightness. Similarly, other extension units may be applied, and the bottom unit C, which may be of pointed form or comprise a steel shoe, is secured in position by a nut F. Alternatively, a steel tube closed by a detachable shoe may be driven into the ground, a small quantity of cement mortar poured in, and the pile inserted therein. A further quantity of cement is poured in to fill the 'spaces left around the pile when the tube is removed. Specification 521,682 is referred to.
Patent GB-563417-A (GB)
Title: Improvements in or relating to the loading of transmission lines for signal currents
IPC: H04B3/16
Filed: 1943-04-27
Abstract: 563,417. Negative resistance loading. WESTERN ELECTRIC CO., Inc. April 27, 1943, Nos. 6626 and 6627. Convention dates, April 25, 1942. [Class 40 (iv)] Thermistors designed and biassed to act as negative resistances at speech frequencies or negative resistances of other types are connected at intervals in a telephone line with attenuation equalizers if necessary and with further slow acting thermistors to compensate for the effect of temperature changes. The Specification comprises a. discussion of the conditions for avoiding instability. Where pure negative resistances, e.g. thermionic tube circuits, are used, they are associated with networks such as 24, Fig. 11, or the network shown in Fig. 15, to cause the negative resistance to decrease with frequency and become positive at the upper edge of the transmitted band. Properly designed thermistors have this property inherently, but may be associated with a similar network to lower the effective cut-off frequency. A series network 23 designed as an attenuation equalizer may be used. An alternative form of equalizer 13<1>, Fig. 12, may be provided with a thermistor and increases the sharpness of the cut-off at high frequencies. A network of the form shown in Fig. 13 having portions tuned to the frequencies at which singing tends to occur may be provided.
Patent GB-1084625-A (GB)
Title: Method of making a set of die facings for metal pressing operations
Inventor: BRIGHT WILFRED
IPC: B21D37/20
Filed: 1966-02-16
Abstract: 1,084,625. Making dies. FORD MOTOR CO. Ltd. April 4, 1966 [Feb. 16, 1966], No. 6729/66. Headings B3A and B3Q. A die-set for pressing sheet-metal, e.g. motor vehicle bodies, comprises a facing of sheet metal (22, 23, Fig. 3) for each die and a rigid backing (25, 26) for the facing. The die-set is made from a plaster mould (11, Fig. 1) of the desired surface formed after first building up the surface with a facing of wax of the same thickness as that of the facing sheet. A sandwich is made of two metal plates (12, 13), to be formed into the facings (22, 23), and a sheet 14 of the thickness of the pressings to be formed. The sandwich is formed by an explosion or an electric discharge, under water, against the mould (Fig. 2). Stainless steel facings (22, 23) may then be backed by concrete (25, 26), or tooling plastics material may back facings of stainless-steel, titanium or berylium, or caststeel may be used to back facings of titanium or berylium. The facings may be secured to the backing by bolts or by adhesion during setting of the backing material.
Patent GB-101598-A (GB)
Title: Improvements in Electrolytic Cells.
IPC: C25B9/17
Filed: 1916-05-11
Abstract: 101,598. Churchill & Co., C., and Geeraerd, E. May 11, 1916. Hydrogen and oxygen, obtaining; cells; electrodes.-Vertical series of inclined non-conducting vanes are arranged close to the electrodes to confine gas flow to the spaces between the vanes and electrodes. The vanes g, Fig. 1, wihich may be of glass or earthenware may be held at their ends by wooden or other distance-blocks situated behind vertical flanges d, Fig. 5, on the dished electrodes a. Vertical grooves e may be provided in the electrode faces to allow passage of gas, or the electrodes may be smooth and slightly spaced from the vanes. The electrodes are clamped together by insulated bolts, being separated by a rubber sheet b a part of which forms a gas-separator at the top of the cell, enclosed by the electrodes. Slots j convey the gases to passages f. Electrolyte is supplied from a funnel k. Two or more cells may be united to form an electrolyzer.
Patent GB-930053-A (GB)
Title: Tobacco compressing vacuum wheel for continuous rod cigarette-making machine
IPC: A24C5/18
Filed: 1962-02-21
Abstract: 930,053. Cigarette-making machines. AMERICAN MACHINE & FOUNDRY CO. Feb. 21, 1962 [Feb. 24, 1961], No. 6778/62. Class 130. In a continuous-rod machine as tobacco is fed from a U-folded belt 3 on to and at a slightly lower speed than the peripheral speed of a suction wheel 8 rotating anticlockwise as viewed in Fig. 1, it is first blown up against a flexible elastic plate 123 extending from a guide-plate 23 by a draught of air F2 flowing through a gap 9 towards apertures 10. The entry of air from the sides is excluded by walls 22 of, for example, rubber or plastics material. The flexible plate 123 has a fork-shaped end with two tongues having a V-shaped notch between them. The guide-plate 23 which is formed from a channelshaped member is pivotally mounted by a pin 24 and slidably mounted by a bolt 52 passing through arcuate slots 51 in the walls 22 to permit pre-set adjustment of the pressure of the flexible plate 123 on the tobacco stream. A second similarly-constructed guide-plate 26 is also fitted. A trimming wheel 29 and cooperating blade 30 are mounted at one end of a bell-crank lever 33, the other end of which carries a roller 37 that is held in contact with a cam 36 by a spring-loaded tappet 38. The trimmed tobacco filler stream is released from the suction-wheel 8, when it reaches the lowermost point of rotation, by fixed packing 113 which cuts off the suction. The filler stream is then directed by a scraper 40 on to a continuous band of cigarette paper 7 carried on a conveyer 5 and fed through a conical semi-tubular tongue 41 to begin the formation of the cigarette rod. Any remaining tobacco particles are removed from the wheel 8 by air forced into a space 42 in the packing 113 and discharged through a tube 45. The movement of the trimming wheel 29 in response to the cam 36 produces a regular variation in the tobacco stream density and is synchronized with the cutting of the wrapped rod into individual cigarettes so that the cigarettes are densest at their ends. Similar dense parts may be produced under portions of cigarettes to be printed upon. In a modification the entire cam 36 and its transmission are raised and lowered according to the weight of cigarettes produced.
Patent GB-253206-A (GB)
Title: Improved process and apparatus for carbonisation of wood
IPC: C10B53/02
Filed: 1925-03-13
Abstract: 253,206. Strache, H., and Polcich, G. March 13, 1925. Carbonizing processes. - Wood in pieces of about 5-20 cms. is carbonized by the direct action of hot gases at a temperature above 600‹ C., the charcoal being cooled with hydrocaxbon containing gases which may also contain tar vapours. In one form of apparatus the heating gases are generated in a producer 1, burned with air from a pipe 12 in a chamber 10 and passed through a dust-depositing space below a baffle 9 and opening 16 into the carbonization shaft 2 charged with the wood. Neutral gases, which may be the tar-freed gases from the shaft, are added through an opening 15 to lower the temperature of the gases entering the shaft 2, these gases being also supplied through an opening 21 to cool the charcoal. In a modification, the producer is situated inside the carbonizing shaft and is heated thereby.
Patent GB-512611-A (GB)
Title: Improvements in hand saws
IPC: B23D49/10
Filed: 1938-03-05
Abstract: 512,611. Saws. FORTESCUE, S., PERKS, H. E., PRESSEY, J. W., and PRESSEY, N. W., (trading as PERKS & CO., H. E.). March 5, 1938, No. 6926. [Class 61 (ii)] A saw comprises a saw blade 1 secured in a handle 2 and guided in a slot 6 in a supporting rod 5 passing through a bore 7 in the handle and provided at the front end with a member 15 to bear against the work 14 to be sawn and at the rear end with a projection 12 connected to a return spring 9 anchored in a bore 8 on the handle. The abutment member 15 is secured to the rod 5 by a screw 16 and houses a guide roller 17 engaging the back of the saw blade.
Patent GB-1361285-A (GB)
Title: Window frame
IPC: B63B19/00
Filed: 1971-03-16
Abstract: 1361285 Window frames ESSEX ALUMINIUM CO Ltd 13 March 1972 [16 March 1971] 7003/71 Heading E1J A window frame 10 has a right-angled portion receiving the edge of a wall P of sheet material, the inner edge 12 of the portion having a channel receiving an annular strip 14, a resilient insert 16, 18 being pressed between wall P and strip 14. The insert comprises resilient wedges 16, 18, rubber ring (24) or a spring clip (26) and filler (28). Frame and strip are of Al. Packing 20 is of sponge plastics.
Patent GB-225065-A (GB)
Title: Expanding trench strut
IPC: E02D17/08
Filed: 1923-09-24
Abstract: 225,065. Flower, T. Sept. 24, 1923. Strutting. - E xpanding trench struts of the type having a central sleeve coacting with reversed screwed ends b and in which protecting sleeves c are used for the screws, are provided with stop rings d placed on the ends of the central sleeve to coact with fixed stops e in the protecting sleeves, to limit expansion. The ends of the struts are shaped to rest on the tops of the walings.
Patent GB-512614-A (GB)
Title: Improvements in or relating to apparatus for delivering lubricating or other liquid or semi-liquid substances
IPC: F16N17/02
Filed: 1938-03-07
Abstract: 512,614. Lubricating. TRIER BROS., Ltd., TRIER, F. N., and CROTHERS, P. F. March 7, 1938, No. 7043. [Class 12 (iii)] Apparatus for delivering into hot fluids e.g. steam, liquid or semi liquid substances which when affected by heat tend to choke the delivery passage, comprises a casing A fitted to a pipe D conveying steam'or other hot fluid. The casing A has passages B, C, which lead to the delivery passage and which are connected through valves B<2>, C<2>, to pipes B<1>, C<1>. The delivery passage E<3> is formed in a rod E having an enlarged portion E<1> fitting a bore in the casing A and an annular duct E<2> with radial passages E<4> leading to the passage E<3>: The rod E passes through a transverse bore F<1> of a valve plug F and has a handle E <5> at its upper end. Removal of the rod E is prevented by a pin G locked in position by a chain G<2> which is hinged to a toggle link G<4> connected to a projection A<9> on the casing A. In operation lubricant or other substance supplied to the pipe B<1> passes through the valve B<2> to the passage Band thence through the delivery passage E3 to the hot fluid flowing through the pipe D. If the passage E<3> tends to become choked the valve C<2> is opened and the passage E<3> is cleaned in the manner described in Specification 486,555. To remove the rod E for cleaning, the pin G is detached, the rod is raised clear of the valve F which is then closed, the stuffing box A7 is removed after which the rod E is withdrawn.
Patent GB-1486675-A (GB)
Title: Metal pipe coupler
IPC: F16L13/14
Filed: 1975-02-19
Abstract: 1486675 Pipe coupler R O MARSH JNR and A. J. NICHOLSON 19 Feb 1975 [21 March 1974] 7065/75 Heading F2G A pipe coupler comprises a tubular metal, e.g. steel body provided at each end thereof with respective annular sockets 26, 27; each socket defining near its mouth a cylindrical portion and having an adjacent portion tapering in diameter and each socket being of uniform radial thickness throughout its length and throughout its circumference. As shown, a ring member 23 is bonded to, e.g. by welding, two coaxial sleeve members 21, 22 to define the socket spaces, 26, 27 shown wherein an inserted pipe end is received into a first cylindrical space, expanded radially into a tapered space and finally received into a second larger cylindrical space at abutment with ring 23. To facilitate assembly of the coupler the two sleeve members may each be formed of two identical portions (Fig. 2, not shown) spaced axially by the ring member. The invention further provides a mobile ram, Fig. 3, for driving piping on to the couplers described. In use pipe portions 56<SP>1</SP>, 56 are engaged by a support ring 43 and supported between rollers 55 carried by a mobile platform 41; and blows from a ram of an air pressure operated cylinder 50 provide via impact head 57, the driving force required to engage the pipes into a coupler 10.
Patent GB-550446-A (GB)
Title: Process for the preparation of sulphenamido and sulphonamido derivatives of heterocyclic compounds
IPC: C07D239/42
Filed: 1941-06-04
Abstract: 550,446. Sulphenamido and sulphonamido compounds. MAY & BAKER, Ltd., and BARBER, H. J. June 4, 1941, No. 7070. [Class 2 (iii)] Benzene sulphenyl halides having in the pposition a halogen atom or a nitrogen-containing group capable of conversion into an amino group are reacted with pyridine or thiazole compounds containing an amino group to give sulphonamido compounds which, on oxidation, yield sulphonamido-pyridine and -thiazole compounds. The reaction with the sulphenyl halide is effected under alkaline conditions and in the absence of a hydroxylic solvent, whilst the oxidation takes place in an alkaline medium. Nitrogen-containing groups mentioned are arylamino, nitro, azo and hydrazo groups. The products may be converted into the corresponding p-amino compounds which are useful therapeutically. According to the examples (1) p-nitrobenzenesulphenyl chloride, prepared from p : p<SP>1</SP>-dinitrodiphenyldisulphide is treated with excess 2 - aminopyridine in ethereal solution and the resulting 2 - p - nitrobenzenesulphenamido-pyridine oxidized with aqueous potassium permanganate ; (2) acetanilido - p - sulphenyl bromide, obtained from acetanilido - p : p'-disulphide, is reacted with 2 - aminopyridine in ether and. then oxidized in acetone solution by addition of aqueous potassium permanganate containing a little caustic soda to give 2 - p - acetylaminobenzenesulphonamido-pyridine ; (3) p-nitrobenzenesulphenyl chloride is reacted in chloroform solution with excess of 2-aminothiazole to form 2 - p - nitrobenzenesulphenamido-thiazole; (4) p-nitrobenzenesulphenyl chloride is treated in ether-carbon tetrachloride with 2 - aminobenzthiazole in presence of a little sodium carbonate and yields 2- p - nitrobenzenesulphenamido-benzthiazole. Specifications 379,683, 512,145, 551,206 and 551,681 are referred to ; the Provisional Specification also refers to Specification 517,272.
Patent GB-685068-A (GB)
Title: Combustion chamber for gas turbines
Inventor: LUBBOCK ISAAC
IPC: F23R3/06
Filed: 1950-03-21
Abstract: 685,068. Generating combustion products under pressure. SHELL REFINING & MARKETING CO., Ltd. Feb. 26, 1951 [March 21, 1950], No. 7072/50. Class 51 (i). In an air-jacketed type of combustion chamber for a gas turbine engine, the flame tube comprises a cylindrical portion 8 within which the burner 17 is disposed, and a tubular wall 9 of greater diameter than the portion 8, the wall 9 and portion 8 being connected by a divergent wall 10. A shroud 13 surrounds the burner to form an annular channel through which a substantial though minor portion of the combustion air is admitted, and an air swirler 12 is disposed around the shroud through which the remainder of the combustion air is admitted. The part of the tubular wall 9 which surrounds the flame 18 is substantially imperforate, but the portion downstream of the flame is provided with orifices 19-22 through which dilution or tertiary air is admitted. The shroud 13 is closed at its upstream end and has ports 14 in its wall for the admission of combustion air ; the downstream end is formed with a converging lip 15. The relative axial positions of the burner and shroud may be adjustable. The upstream rows of orifices 19, 20 are elongated and their longitudinal axes are inclined to the axis of the flame tube at the same angle as that which the current of gases inside the flame tube makes with the axis thereof. The upstream rows of dilution air orifices may alternatively be provided with chutes or with an obturator ring of U-shaped section disposed around the downstream edges of the orifices. A bleed tube may be disposed around the burner to permit a small flow of air around the tip of the burner to keep it clean. Combustion air may be admitted through the open upstream end of the sleeve 13 instead of through ports 14, and a disc-shaped baffle is then disposed upstream of the open end. Some or all of the dilution air orifices may have short pipes projecting radially or tangentially into the interior of the flame tube and the pipes may be double-walled. The orifices may also have trough-like baffles with their open sides facing upstream as in Specification 676,473.
Patent GB-1211176-A (GB)
Title: High-pressure sodium vapor lamp
Inventor: HANNEMAN RODNEY ELTON
IPC: H01J61/36
Filed: 1968-02-13
Abstract: 1,211,176. Metal vapour lamps. GENERAL ELECTRIC CO. 13 Feb., 1968 [16 Feb., 1967], No. 7100/68. Heading H1D. Sodium cleanup in a high-pressure lamp comprising an alumina envelope 12 with a filling which includes mercury, an inert gas and sodium. said sodium being at a partial pressure of 10 to 1000 torr. in operation, is prevented by providing in oxygen-communication with said envelope a reactive metal substance, said metal having over a given temperature range a free energy of reaction in the formation of its oxide per mole of oxygen more negative than the free energy of formation of sodium aluminate per mole of oxygen within said envelope, said substance being so located within said lamp as to achieve during operation a temperature within said range. The metal substance may be the pure metal or a compound or alloy thereof. A list of 26 suitable metals is provided, those preferred being Y, Ce and Lu in that order. The sodium is preferably provided by a sodiummercury amalgam 26 and the inert starting gas may be xenon. The reactive metal may be provided in a dummy niobium exhaust tube 20, niobium being permeable to oxygen over the said temperature range. Alternative locations are as an internal or external coating on a niobium end cap 18, a coating 43 on a metal tab 44, or an addition 42 to the amalgam 26. The envelope 12 is supported by a frame 22 in an outer evacuated vitreous envelope 2 containing getters G, G<SP>1</SP> of barium powder which is at a temperature below said range.
Patent GB-561013-A (GB)
Title: Production of ª‰-alanine and ª‰-alanates
Filed: 1942-05-26
Abstract: Alkali metal, alkaline earth metal and ammonium salts of alanine are prepared by treating the corresponding salts of acrylic acid with ammonium hydroxide.  The alkali metal and alkaline earth metal salts of acrylic acid may be prepared in situ from the bases and acrylic acid or esters thereof.  Free alanine may be prepared from the salts thereof by treatment first with acid and then with silver or lead oxide.  In examples: (1) sodium acrylate, prepared from ethylacrylate and sodium hydroxide is heated with a solution containing ammonium carbonate and hydroxide; the resulting salt is dissolved in hydrochloric acid, evaporated and taken up with acetic acid and acetone to give b -alanine hydrochloride; (2) ammonium acrylate, prepared from the ethyl esters is similarly converted into b -alanine hydrochloride; (3) ethylacrylate is heated with aqueous ammonia and calcium hydroxide to give calcium b -alanate.  Specification 478,304 is referred to.
Patent GB-535560-A (GB)
Title: Improvements in stripping electrodeposited metal sheets
IPC: C25D1/20
Filed: 1940-04-22
Abstract: 535,560. Electrodeposition of metal foils. ANACONDA COPPER MINING CO. April 22, 1940, No. 7261. Convention date, May 11, 1939. [Class 41] Thin sheets or foils of copper or other metal formed by electrodeposition on a rotating cathode drum 11, Fig. 1, mounted in a tank 10 above anodes 13 are stripped therefrom by a member 19 which may be of the configuration shown in Fig. 3 with bearing axles 22 and acts in such a way as to separate the central portion of the sheet from the drum in advance of the edge portions, so as to minimize the tearing strain thereon. The member 19 may be a steel or other roll which may be faced with rubber and may be provided with a doctor blade to keep it clean. The member need not be rotatable, however, but may comprise a bar for instance of upwardly curved form. To start the operation a relatively thick deposit which can be stripped easily by hand is allowed to form on the drum. The cathode surface is preferably of antimonial lead and a polishing brush 14 is provided to maintain it in condition. The stripped foil is received on a take-up reel 20.
Patent GB-341766-A (GB)
Title: Improvements in or relating to radio and similar high frequency communication systems
IPC: H04B1/30
Filed: 1930-03-06
Abstract: 341,766. Wireless signalling. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. March 6, 1930, No. 7405. Convention date, March 8, 1929. Addition to 332,834, [Class 40 (v), Wireless signalling &c.]. Class 40 (v).] The auxiliary transmitted control-frequency, utilized as described in the parent Specification for automatic gain regulation, and also for synchronizing the frequency of a local homodyne generator, is now made to carry an additional message by keying.