baber/WOPTO huggingface dataset:
Patent GB-819192-A (GB)
Title: Finish for nylon textile materials
IPC: D06M11/74
Filed: 1957-07-25
Abstract: Mixed aromatic coal acid compounds, i.e. coal acids, their water-soluble salts, particularly the alkali metal and ammonium salts, and mixtures thereof, are produced by the oxidation of an aqueous alkaline slurry of finely divided coal or of coke that has been obtained by the carbonization of coal at temperatures below 700 DEG  C.  Oxidation may be effected with gaseous oxygen at a temperature between 200 DEG  and 300 DEG  C. and under a pressure of from 500 to 1200 pounds per square inch.  The free coal acids may then be isolated by acidifying the solution with sulphuric acid and, after filtration, recovering the water-soluble free acids by extraction with a water-immiscible solvent, e.g. methyl ethyl ketone. The coal acid compounds may also be obtained by the nitric acid oxidation of suitable carbonaceous materials. Suitable coals are anthracite, bituminous coal and lignite.  The coal acids are polycarboxylic and have an average molecular weight of 250 and an average equivalent weight of about 80, the aromatic nuclei of the acids being preponderantly methylnaphthalene, benzene, biphenyl, naphthalene, phenanthrene, alkyl benzene, benzophenone and toluene nuclei.ALSO:Nylon yarn or like filamentary material is finished to facilitate its construction into fabric by the deposition thereon of a plastified film of mixed coal acid compounds, i.e. mixed aromatic acid compounds obtained by the oxidation of coal (see Group IV (b)), comprising free coal acids, water-soluble salts of free coal acids or mixtures thereof.  The film of coal acid compounds may be plastified by a solvent for the compounds, e.g. water, glycerine, a glycol or a polyglycol, and the finish may be applied in solution in such a solvent by immersing the yarn in the solution or by roller or wick applicators or liquid jet or spray devices.  The film finish may be dried in air, preferably at an elevated temperature, e.g. with heated ovens or heat lamps. The finish may subsequently be removed by scouring with water or "Triton X-100" (Registered Trade Mark), an alkyl-aryl polyether alcohol type of detergent.  The coal acid compounds may be applied in combination with other finishes or sizes for nylon, e.g. polyacrylic acid.
Patent GB-780264-A (GB)
Title: Improvements in hole detectors for rib knitting machines
IPC: D03D51/34
Filed: 1954-08-13
Abstract: 780,264. Knitting-machines. VOSSEN, E. Aug. 13, 1954, No. 23659/54. Class 74 (2). A stop-motion device for a circular machine comprises a pair of arcuate bars 20 which are spaced one above the other to engage the inside of the knitted tube, as it is produced, to hold it taut. A number of feelers 74 are positioned in a block 62, pivotally mounted in a casing 48 supported between the two arcuate members, and are resiliently urged against the fabric so that in the event of a feeler engaging a hole in the relatively rotating fabric tube the block 62 is swung about its pivot and releases a catch bar 104 holding a switch actuating member 88. The number 88 is mounted on the side of the casing and is resiliently urged towards the fabric so that when released it presses against the fabric and actuates a switch through an arm 118 mounted on the outside of the fabric tube, thereby stopping the machine. Alternatively, the feelers may be mounted to press against the outside of the fabric tube.
Patent GB-1242949-A (GB)
Title: Ester-containing polyols and use in preparation of urethane compositions
IPC: C07F9/08
Filed: 1969-05-09
Abstract: 1,242,949. Ester-containing phosphorus polyols and polyurethane foams therefrom. MARLES - KUHLMANN - WYANDOTTE S.A. 9 May, 1969 [13 May, 1968], No. 23808/69. Headings C3C and C3R. Ester-containing polyols suitable for use in the preparation of polyurethanes are prepared by reacting (i) a polyhydroxyl-containing phosphorus compound with (ii) a halogen-containing organic polycarboxylic acid anhydride and reacting the product with an alkylene oxide. The phosphorus compound is a phosphate polyol, phosphite polyol, phosphonate polyol, phosphinate polyol, phosphoramidate or a polyhydroxyl - containing phosphine oxide. Many reactants are specified, those used in the examples being: I-propylene oxide, tetrachlorophthalic anhydride and a phosphate polyol prepared by reacting propylene oxide with 100% phosphoric acid; II-IV tetrabromophthalic anhydride, chlorendic anhydride, tetrabromophthalic anhydride and a mixture of tetrachlorophthalic anhydride and tetrabromophthalic anhydride respectively, the other reactants being as in Example I; V and VI tetrachlorophthalic anhydride or chlorendic anhydride with propylene oxide and a phosphate polyol prepared by the reaction of propylene oxide with 115% phosphoric acid; Example VIII follows the procedure of Example I using various phosphorus-polyols. Polyurethane foams are made by reacting the above polyols with a polyisocyanate and a blowing agent by the " one-shot " or the prepolymer process. The polyols may be used in admixture with other polyfunctional monomeric or polymeric compounds in which the functional groups are hydroxy, amino or mercapto groups. The usual chain extending agents, catalysts and surfactants may be used. In the examples (VIII) foams were prepared by the " one-shot " process using the polyols of Examples I-IV ; polymothylene polyphenylisocyanate, a polyalkylene ether polyol, silicone surfactant, tetramethylene ethylene diamine and trifluoro chloromethane.
Patent GB-918518-A (GB)
Title: Hose connectors for vacuum cleaners
IPC: F16L21/00
Filed: 1961-07-03
Abstract: 918,518. Hose connectors. SINGER MANUFACTURING CO. July 3, 1961 [July 7, 1960], No. 23867/61. Class 99(1). A connector 22 in the form of a tubular member and adapted for use with a vacuum cleaner, has an internal body portion 23 formed of a squashy substance such as sponge rubber or vinyl foam and at least the inside surface of the member is covered with an impervious coating 24, e.g., of vinyl. The aperture is formed with at least one frusto-conical surface. As shown, the outside of the connector is covered with a vinyl coating 26 and the connector has an upper flange 27 and spaced rings 28 which assure a non-leaking contact with the internal surface of a tubular element of the vacuum cleaner. The inner surface of the connector is formed with a number of frusto-conical surfaces each provided with protuberances 46, 56, 66 and for the connection of tubes of different diameters.
Patent GB-614896-A (GB)
Title: Improvements in and relating to electric discharge lamps
IPC: H01J61/82
Filed: 1946-08-12
Abstract: 614,896. Discharge lamps. SCOPHONY. Ltd., and WIKKENHAUSER, G. Aug. 12, 1946, No. 23902. [Class 39 (i)] At least one electrode of an electric discharge lamp, or a support for such electrode, is taken into the interior of the lamp envelope through a flexible metal membrane 11 which constitutes a gas-tight seal and permits limited movement of the electrode. In a mercury vapour lamp the membrane may be of stainless steel, chrome steel or chromium, or its inner surface may be plated with platinum, chromium or rhodium. The membrane may be concentrically corrugated and is preferably provided with a stop 16 to limit the movement of the electrode. The flexibility of the membrane or membranes may be sufficient to enable the two electrodes to be brought into contact with one another, as in a carbon arc lamp, for starting purposes. The electrodes may be moved, after starting, to increase the arc length to the most favourable value.
Patent GB-517610-A (GB)
Title: Improvements in or relating to supports for grill pans for cookers
IPC: F24C15/18
Filed: 1938-08-13
Abstract: 517,610. Grilling stoves. EMSCOTE. FOUNDRY CO., Ltd., and HARVEY, F. Aug. 13, 1938, No. 23936. [Class 126] The grill-pan 17 of a gas-heated cooker is supported by a strip-metal frame 18 having a lateral extension 19 pivoted in lugs 22 to the sidewall 13 of the cooker so that the frame can be swung outwards from beneath the hot-plate for the removal or inspection of the grill-pan. The frame may be formed with transverse members 25, 26 and be provided with a stop 27 engaging the side-wall of the cooker. Alternatively the grill-pan may be directly pivoted to the side-wall. In a modification, the frame 18 is pivoted to one end of a bar which is pivoted at its other end to the cooker. The grilling device is preferably of the form described in Specification 516,207.
Patent GB-439479-A (GB)
Title: Improvements in or relating to electrolytic condensers
IPC: H01G9/04
Filed: 1935-08-27
Abstract: 439,479. Electrolytic condensers. GWINN, C. D., The Moorings, Catlins Lane, Pinner, Middlesex, STEPHAN, F. C., St. Lawrence, Riddlesdown Road, Purley, Surrey, and TELEGRAPH CONDENSER CO., Ltd., Wales Farm Road, North Acton, London. Aug. 27, 1935, No. 23951. [Class 37] In electrolytic condensers in which one or both of the electrodes consists of aluminium of 99À7 per cent purity or over, the aluminium used for the electrodes is etched by subjecting it to the action of a direct electric current in a solution of an electrolyte which has little or no chemical action on the aluminium until the current is passed, the current being passed through the solution in such a direction that the aluminium is positive with respect to the solution. The electrolyte may be a weak solution of a halogen acid, or an aqueous solution of a halide of an alkali or alkaline earth metal, e.g. sodium chloride, acidified with hydrochloric, hydrofluoric, nitric or oxalic acid. The etching may be confined to one of the surfaces of the aluminium, e.g. to the outer surface of the anode in condensers comprising a hollow anode surrounded by a cathode, as described in Specification 428,679. In carrying out the process, aluminium strip may be passed through a bath of the electrolyte between carbon cathodes, the current being fed to the strip by means of rollers. If the etching is to be confined to one side of the strip, the cathode is arranged opposite that side.
Patent GB-201435-A (GB)
Title: Appliance for testing pipe joints and the like
IPC: G01M3/28
Filed: 1922-09-04
Abstract: 201,435. British Mannesmann Tube Co., Ltd., Ross, D., and Smith, E. S. Sept. 4, 1922. Indicating leaks.-Relates to apparatus for testing joints in a pipe line, of the kind comprising two interconnected obturating members 4, 5 which are inserted through one end of the pipe line being tested, and arranged to enclose a space 15 containing the joint under test, a testing air pressure being then created in the space for this purpose. According to the invention, the obturating members are provided with circumferentially disposed tyre-like members 8, the inner tubes 9 of which are inflated to form air-tight joints with the walls of the pipes 1, 2. The inner sides of the outer covers 8 are preferably provided with flanges or lips 7. Air is pumped, when the apparatus is in the desired position, through the three-way cock 20, along a tube 12, to two flexible connections 11 leading to the tyrevalves 10. When the tyres 9 are inflated to the required pressure, shown by a gauge 23, the cock 20 is turned to communicate, through a tube 13 enclosing the tube 12, and an aperture 14 at its. end, with the space 15 being tested. Constancy of reading of the gauge 23 indicates that there is no leak in the apparatus itself, The desired test pressure is then applied, and any falling of the gauge reading 24, provided the apparatus is airtight, will indicate a leakage at the joint 3. After the testing pressure has been maintained for the desired period of time, the tubes 9 are deflated by opening the cock 20 to an exhaust connection 22, thus simultaneously releasing the pressure in the space 15. The tube 13 is graduated to facilitate positioning the apparatus in the pipe, and the tubes 12, 13 are rigid and composed of short connected lengths, the inner tube 12 being supported inside the outer tube 13 by perforated supports 16. The tubes 12, 13 may be curved to conform to the shape of the pipe and are provided with one or more spider-supports 18 for taking the weight.
Patent GB-599456-A (GB)
Title: Improvements in or relating to fluid pressure motors of the reciprocating piston type
IPC: F16N13/16
Filed: 1945-09-17
Abstract: 599,456. Fluid-pressure motors. GILBERT & BARKER MANUFACTURING CO. Sept. 17, 1945, No. 23989. Convention date, Sept. 16, 1944. [Classes 122 (ii) and 122 (v)] In a fluid-pressure actuated piston motor for driving a grease pump a differential piston valve 71, 72 controlling the inlet to and exhaust from the lower end of a power cylinder 37 is moved initially by mechanical means and finally by fluid pressure. Air under pressure is supplied through a port 52 to open a valve 74 carried by a differential piston 72, 71 in a smaller valve cylinder 65 to move the piston valve 71, 72 downwards and close the opening 69 to the larger valve cylinder 66 by means of a valve 77, mounted on the piston valve 71, air may thus pass to the power cylinder 37 through the passages in the piston valve and a conduit 60 to move the power piston 42 upwards on its power stroke. Nearing the end of the power stroke, a flange 95 on the upper side of the piston 42 will contact a forked arm 94 that is slidably located on a guide 91 by its boss 92 to which is' secured a second forked arm 93 disposed between the two end flanges of a spool 89 adjustably secured to the spindle 84 of the piston valve 71, 72 ; further upward movement of the power piston 42 will cause the valve 77 to be raised from its seat permitting pressure air to enter the large piston valve cylinder 66 to move the piston valve 71, 72 upwards and close the air inlet valve 74, at the same time uncovering an exhaust port 80 allowing air to escape from the cylinder 37. The return stroke of the power piston is effected by a second and smaller power piston 47, attached to and co-axial with the power piston 42 in a cylinder 38 which is in constant communication with the air supply through the pipe 57. Underneath the piston 47 is attached a stop 96 which, in the event of the valve 74 sticking and not operating under air pressure, will contact the upper face of the forked arm 94 and force the valve 74 from its seat.
Patent GB-939761-A (GB)
Title: Automatic slide-valve device
IPC: F16K31/56
Filed: 1960-07-11
Abstract: 939,761. Valves. ETABLISSEMENTS GEORGES MARTIN. July 11, 1960 [Aug. 1, 1959], No. 24146/60. Class 135. An automatic feed reversing device, for a double line lubrication system, is adapted to switch the supply of lubricant, fed to an inlet 5, alternately from one to the other of two outlets 6, 7, in response to overpressure at these outlets, the device comprising a longitudinal slide valve having two piston portions 3, 3a spaced on opposite sides of the inlet, there being associated with the displacement zone of each piston portion a first passage in communication with the outlet 6 or 7 to be fed, a second passage 9 or 9a connecting this first passage to the corresponding piston end, and a return passage 8 or 8a for connection to a tank. The valve is coupled through an overcentre toggle device to a biasing spring 15, Fig. 1, this toggle device being constituted by connected chain link parts 19, 22 pivoted on fixed pins 21 and to the slide valve at 23, and biased through a plunger 14 bearing on the links. A chamber 17 housing the toggle device has a tank connection 24. In a modification, a pressure relief valve is connected to the valve chamber in line with the inlet 5 to avoid trapping the pressure during change-over. In another modification, the toggle device is connected to a central portion 4 of the valve, being housed in the valve chamber. In the embodiment of Fig. 9, an auxiliary piston valve 31 is spring centred in a bore 30 parallel to the main valve bore and intersecting the outlets 6, 7 so as to close communication between these outlets and a conduit 3 connected to the inlet 5. On operation of the main valve in either direction the auxiliary piston 31 moves under the corresponding overpressure at one or other of the outlets so as to connect the inlet, during the movement of the main valve, with that piston end 3 or 3a which is subject to the overpressure, in order to assist the actuation of the main valve and avoid stopping in the mid-position. In other modifications, a projecting end 39a of the main valve is arranged to actuate an electric alarm switch or a warning bell, or a counter for recording the number of reversals of the valve.
Patent GB-799854-A (GB)
Title: Multiple magnetic transducing head units
IPC: G11B5/187
Filed: 1956-08-07
Abstract: 799,854. Magnetic recording heads. NATIONAL CASH REGISTER CO. Aug. 7, 1956 [Aug. 23, 1955], No. 24160/56. Class 40 (2). A multiple magnetic transducing head unit comprises a two-part casing in which the head members 2 are in each part 13 held in spaced complementary relationship to each other by internal slots 11, 14 such that when the two parts of the casing are secured together a plurality of heads is formed in a single unit. Intermediate slots 25, 26 are also provided to accommodate sheets 8 of screening material. The halves 13 of the casing are provided with chambers 23, 24 which are subsequently filled with epoxy resin. Leads 6 from coils 5 wound on the head members 2 pass through chamber 24 to the inner ends of terminal plugs 15. During the filling operation the screening sheets 8 are replaced by dummy shields 21. After curing and cooling the dummy shields are removed and the surface of the housing, pole tips and filling is ground flat. The two housing assemblies are then temporarily mated together after a non- magnetic shim 33 0.00035 inch thick, adhesively coated on one side, has been inserted between them. The halves are then separated and the excess portions of shim 33, including the portions covering slots 25, are removed and the screening shields 8 replaced. The two assemblies are then clamped together by bolts 34 passed through holes 35 in the casing.
Patent GB-1435935-A (GB)
Title: Community antenna television system
IPC: H04N7/10
Filed: 1973-05-21
Abstract: 1435935 Television distribution systems HOCHIKI CORP 21 May 1973 [20 May 1973 (3)] 24162/73 Heading H4R A control circuit 8 at each TV receiver in a wired distribution system responds to a control signal to switch on the receiver if not already switched on, interrupt the passage of TV signals between the tuner 12 and IF stage 14 and pass alarm signals modulated on an IF carrier to the IF stage. The alarm signals from a video camera or recorder 3 are RF modulated on to the IF carrier for distribution with broadcast TV programmes. Each control circuit 8 includes filters 10, 15, 16 respectively passing TV signals to the tuner 12, alarm signals to the IF stage and control signals to a relay 13 whose contacts 18, 19 change over to effect the above connections. In Fig. 4 (not shown) an IF filter (20) feeds a splitter (21) supplying both the television IF stage and an HF amplifier (22) whose output operates the relay as before.
Patent GB-651403-A (GB)
Title: Improvements in and relating to the preparation of zein
Inventor: PINNER SOLOMON HARRIS
IPC: A23J1/12
Filed: 1947-09-02
Abstract: <PICT:0651403/IV (b)/1> In a process for the extraction of zein, maize gluten is subjected to a treatment with an aliphatic chlorhydrocarbon at above room temperature whereby the major portion of the impurities is dissolved out, and the purified oil-free maize gluten is then treated to extract the zein.  The gluten need not be dried before extraction and water may be removed in the treatment with the chlorhydrocarbon.  Maize gluten as a suspension in water or substantially free from water may be used, a starch-free gluten being preferred.  The impurities dissolved in the chlorhydrocarbon may be continuously removed from the heated zone.  In an example, maize gluten is agitated and boiled with trichloroethylene, in vessel 1, the rising vapours of the latter and entrained water being condensed in condenser 10, the water separated from the trichloroethylene in separator 11, which is then refluxed to vessel 1.  A solution of impurities in trichloroethylene passes through the streamline filter 7 into container 13 and thence to vessel 17 where the trichloroethylene is distilled and returned via pipe 18 and the reflux system. Water and trichloroethylene are then removed via the separator and valve 91.  The purified gluten is heated with aqueous alcohol and the zein solution is separated in a centrifuge or by decantation.  Removal of residual trichloroethylene from the gluten may be expedited by blowing in live steam with or without the application of a vacuum.  Alcohol distilled from the zein solution may be returned to vessel 1.  Suitable chlorinated solvents are trichloroethylene, perchloroethylene, carbon tetrachloride, ethylene dichloride, acetylene tetrachloride, trichlorethane propylene dichloride.  In the second stage aqueous alcohol and solvents such as methanol, aqueous isopropyl alcohol, aqueous acetone, a binary mixture of two of the following, an alcohol, a chlorinated hydrocarbon, an ether, an ester or water, or known ternary solvent mixtures may be used.  The zein solution may be decolourized as described in Specification 651,396.
Patent GB-440974-A (GB)
Title: Means for freeing liquids from gases
IPC: B01D19/00
Filed: 1934-08-22
Abstract: <PICT:0440974/III/1> A device for freeing a liquid from a gas comprises a casing 1, 2 having a gas outlet valve 11 at its top end, and a liquid valve 8 intermediate its ends which opens against a spring 9 under the weight of the superincumbent liquid, said valves being interconnected so that the opening of the liquid valve closes the gas valve and the closing of the liquid valve permits the gas valve to open.  For example the gas valve may be closed by a weight 14 which rests on the liquid valve.  The liquid valve may have within it a one-way valve permitting a return flow of liquid.
Patent GB-462125-A (GB)
Title: Improvements in breast-supporting garments for women's wear
IPC: A41C3/00
Filed: 1935-08-30
Abstract: 462,125. Brassieres. KLIN, R. L. Aug. 30, 1935, No. 24263. [Class 141] A brassiere is made from a single triangular blank A of fabric cut on the bias by making cuts B, B<1> parallel to the base of the blank, and removing triangular pieces leaving spaces C, C<1>, the edges of which are sewn together to form darts D, D'. The top of the blank is cut away at E, and the outer ends G, of the lower part of the blank may be removed, and the ends provided with button and buttonholes or other fastening means. A shoulder strap F is provided, and, if desired, a strap H connecting together the sides of the garment. According to. the Provisional Specification, the whole bottom of the blank below the cuts B, B<1> may be removed, and the strap H may be replaced by a strap secured to the shoulder strap, and to a lower garment.
Patent GB-1235964-A (GB)
Title: Vacuum furnace
Inventor: SCHERFF GEORGE E
IPC: C21D1/773
Filed: 1969-05-13
Abstract: 1,235,964. Vacuum furnaces. MIDLANDROSS CORP. 13 May, 1969 [6 Sept., 1968], No. 24282/69. Heading F4B. A vacuum furnace comprises a water-cooled casing 12 which is evacuated during a heat treatment, a heating enclosure 30 having openings 38, 36 for the inlet and outlet of a cooling gas during a cooling treatment and heat reflective covers 40, 42 and shields 44 respectively spaced from and within the openings. During the cooling treatment, argon or nitrogen, admitted through a line 65, is circulated through the enclosure 30 and over water-cooled coils 54 by a fan 48. The enclosure 30 is heated by electrical elements 26, 28. The elements of each shield 44 may be perpendicular to or inclined at an oblique angle to the plane of the corresponding opening.