baber/WOPTO huggingface dataset:
Patent GB-1509183-A (GB)
Title: Apparatus for contacting metal waste with a liquid
IPC: B01D11/02
Filed: 1974-04-19
Abstract: 1509183 Extracting metal waste BATCHELOR ROBINSON METALS & CHEMICALS Ltd 14 April 1975 [19 April 1974] 17184/74 Heading B1Q An apparatus for contacting metal waste with a treatment liquid which can selectively remove a coating from the waste comprises a plurality of treatment vessels (10), a treatment liquid inlet opening (11), a treatment liquid outlet (12) conduit means (13) serially interconnecting the treatment vessels so that, in use, the treatment liquid flows serially through the vessels from the inlet to the outlet, at least one washing vessel (20, 22), means for feeding washing liquid to and from the or each washing vessel, at least one pair of inclined screw conveyors (14) in each of the treatment and washing vessels, the screw conveyors being arranged to transfer metal waste, through the treatment vessels and then through the washing vessel or vessels, each screw conveyor having an inlet end in the respective vessel and an outlet end positioned to discharge metal waste into an adjacent vessel, and a planar inclined floor (17) to at least some of the vessels, and each inclined floor being substantially parallel to the axes of rotation of the respective screw conveyors. The liquid and waste may flow in counter-current.
Patent GB-550351-A (GB)
Title: Improvements in or relating to the injection mechanism of die-casting machines
IPC: B22D17/10
Filed: 1941-06-23
Abstract: 550,351. Casting-machines. DANIELS, Ltd., T. H. & J., and DANIELS, J. L. June 23, 1941, No. 17236/42. Divided out of 550,864. [Class 83 (i)] In a die-casting machine of the type in which an injection cylinder 13 is carried by the slide 12 of the movable half die, premature movement of the injection plunger 11 is prevented by a catch or catches 15. When the die has been closed the catches are released, e.g. by a rod 23 operated by the closing mechanism, or hydraulically.
Patent GB-1329532-A (GB)
Title: Frequency changing and multiplying arrangements
IPC: H03D9/06
Filed: 1972-04-14
Abstract: 1329532 Frequency changers NIPPON HOSO KYOKAI 14 April 1972 [28 April 1971] 17265/72 Heading H3T [Also in Division H2] A waveguide has mounted in it a strip line signal pickup arrangement, which is mounted on a dielectric base-plate, is resonant at at least two frequencies and extends parallel to a direction of high frequency electric field in the waveguide. A non-linear semi-conductor element has one terminal connected to the strip line, both it and the strip line being formed by printed circuit technique. In an embodiment comprising a frequency-changer, signal, frequency f c , and local oscillations, frequency f p  impinge on either side of dielectric base-plate 11, carrying the strip line 13 which is a quarter wavelength long at the mean of the two frequencies. One end of strip line 13 is connected to the walls 12 of the waveguide by means of arms 14 and the other to diode 15, which may comprise a Schottky barrier diode. The second terminal of diode 15 is connected to a widened line 16, also a quarter wavelength long at the mean frequency and shaped to decrease its impedance, and thence by strip line 18 to the centre conductor 22 of a coaxial connector from which the I.F. output is obtained. Quarter wave chokes 19, 20 each situated a half wavelength at the relevant frequency, from the plate 15 prevent passage of the frequencies f p , f s  respectively into the opposite portions of the waveguide. The strip line 13 may be replaced by a number of parallel strip lines each connected to a separate diode, the outputs of which are combined (Fig. 12, not shown). The Specification also describes embodiments comprising frequency multipliers (see Division H1).
Patent GB-981684-A (GB)
Title: Storable compositions comprising unsaturated polyesters and polyisocyanates
IPC: C08G18/28
Filed: 1961-05-11
Abstract: A storable composition comprises a mixture of (A) an unsaturated polyester containing free OH groups derived from an olefinically unsaturated at least dicarboxylic acid and an excess of an at least dihydric alcohol and (B) a polyisocyanate dissolved in styrene, said mixture having incorporated therein a C1-4 alcohol which is added either to the polyisocyanate before admixture with the polyester or to the mixture of polyester and isocyanate.  The composition may comprise a mixture of the polyester (A) with a reaction product of a similar polyester and a polyisocyanate which has had at least 75% of the isocyanate groups converted to urethane groups with the C1-4 alcohol in weight proportions between 1: 1 and 95: 5.  The polyester may be derived from C2-8 glycols, glycerol, pentaerythritol, trimethylol propane, hexane-triol, dior tetra-ethylene glycol or sorbitol and maleic, fumaric, itaconic, tetrahydrophthalic, tetra-chlorotetrahydrophthalic or aconitic acid or a Diels-Alder reaction product thereof with an olefine.  Up to 50 mol. per cent of the unsaturated acid may be replaced by saturated or aliphatic acids. Specified isocyanates are toluylene, cyclohexylene, 4,41-dicyclohexylmethane, hexamethylene, and 1,4-diphenylmethane diisocyanates and polyisocyanates obtainable by reacting these with the polyols mentioned above.  Specified C1-4 alcohols are the alkanols. Hardening catalysts specified are benzoyl, cyclohexanol, t-butyl and di-t-butyl peroxides which may be used with a co-catalyst, e.g. dimethylamine, N-dimethyl-toluidine, -xylidene or -naphthylamine, triethylamine or tributylamine. Specified fillers are quartz, barium sulphate, silicon carbide, coke powder, graphite and slate powder.  Specification 845,529 is referred to.
Patent GB-396395-A (GB)
Title: Processes for the production and employment of organic persulpho compounds
IPC: C07C409/44
Filed: 1931-11-27
Abstract: The organic persulpho-compounds, described in the parent Specification as prepared by the reaction of organic sulphochlorides with peroxides, such as hydrogen peroxide, in the presence of organic solvents and substantial absence of water, are now prepared by treating sulpho-compounds other than sulphochlorides with peroxides, the presence of organic solvents and absence of water not being essential, but good cooling and/or stabilizers must be employed.  The free sulphonic acid may be reacted with a metal peroxide, or compounds of the type R-SO2-O-X, where X is hydrogen or a metallic, ammonium or like salt-forming radical, may be reacted with hydrogen peroxide, or a peroxide may be reacted with a compound of the type R-SO2-O-O-SO2-R<1>, where R and R<1> are the same or different organic radicals.  In the examples, (1) naphthalene-sulphonic acid is treated, while cooling and in the presence of sodium pyrophosphate, with both sodium and hydrogen peroxides.  (2) Naphthalene disulphoacid is treated with hydrogen peroxide in the presence of sodium pyrophosphate.  (3) Diisopropyl - b -naphthalene-sulpho-acid - peroxide is treated with sodium peroxide in the presence of sodium pyrophosphate, with cooling.
Patent GB-146197-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02B75/02
Filed: 1920-06-25
Abstract: 146,197. M³ller, E. L. Dec. 17, 1917, [Convention date]. No Patent granted (Scaling fee not paid). Two-stroke-cycle engines; driving-gear.-Oppositely-moving pistons reciprocate in each of the cylinders of a. radial revolving cylinder engine. The inner pistons h, i are connected to a stationary crank shaft a and the other pistons are connected by outside rods m. to eccentrics x secured to the shaft. The cylinders have inlet ports r to which charges are supplied from a crank case fed through the hollow shaft a. The cylinders and crank casing may be constructed of aluminium. An aircraft propeller is driven from the end y of the casing and accessories from a gear-wheel q carried by the other end.
Patent GB-273735-A (GB)
Title: Method of synthetically producing ammonia from its elements
IPC: C01C1/04
Filed: 1927-06-30
Abstract: 273,735. Uhde, G. F. July 2, 1926, [Convention date]. Catalytic agents, preparation and treatment of; ammonia, catalytic production of from nitrogen and hydrogen.-The synthesis of ammonia is performed with the use as catalyst of a mass containing iron, aluminium, carbon, and nitrogen, and an alkali metal or a compound thereof. The preferred alkali metal is potassium and the preferred compound thereof is the cyanide or the ferri- or ferro-cyanide. In an example, a solution of an aluminium salt, such as aluminium chloride or sulphate, is mixed with a solution of potassium ferrocyanide and the mixture is evaporated to dryness in vacuo. The dried and pulverized composition is then poured into the catalyst furnace and prepared for use by treatment at 300-450‹ C. with hydrogen, with or without nitrogen, preferably under pressure. The product may then be used to effect the synthesis of ammonia at about 400‹ C. under 100 atmospheres pressure. The catalyst may be reactivated, after continued use, by pulverizing it. Reference has been directed by the Comptroller to Specification 253,122.
Patent GB-815800-A (GB)
Title: New biguanide salts
Inventor: SENIOR NORMAN
IPC: C07C279/26
Filed: 1956-06-06
Abstract: The invention comprises salts of hydroxyalkane sulphonic acids of the formula R-CH2-SO3H (wherein R is an alkyl radical substituted by at least one hydroxy group and optionally substituted by halogen atoms) with bis-biguanides of the formula <FORM:0815800/IV (b)/1> (wherein A is phenyl, halophenyl or alkyl phenyl and m is an integer from 2 to 12) and their preparation by interaction of the acid or a salt thereof (e.g. an alkaline-earth metal salt) with the bis-biguanide or a salt thereof, advantageously in a liquid medium such as water. Examples describe the preparation of the diisethionates of 1 : 6-di-(N1-p-chlorophenyldiguanido - N5) - hexane, 1 : 6 - di - (N1 - 2 : 5 - dichlorophenyldiguanido - N5) - hexane, 1 : 6 - di-(N1 - m - chlorophenyldiguanido - N5) - hexane, 1 : 6 - di - (N1 - p - tolydiguanido - N5) - hexane, 1 : 4 - di - (N1 - p - chlorophenyldiguanido - N5)-butane, 1 : 10 - di - (N1 - p - chlorophenyldiguanido - N5) - decane and 1 : 2 - di - (N1 - p-chlorophenyldiguanido - N5) - ethane, and of the di - (2 : 3 - dihydroxypropane - 1 - sulphonate), the di - (3 - chloro - 2 - hydroxypropane - 1 - sulphonate) and the di - (2 - hydroxypropane - 1 - sulphonate) of 1 : 6 - di-(N1 - p - chlorophenyldiguanido - N5) - hexane.  In the Provisional Specification the bisbiguanides are represented by the general formula <FORM:0815800/IV (b)/2> wherein A is phenyl, alkylphenyl, alkoxyphenyl, nitrophenyl or halophenyl, R and R1 are hydrogen, alkyl or aralkyl, X and X1 are each a direct linkage or an alkylene radical of 1-3 carbon atoms, m is 2-12 and (CH2)m may optionally be interrupted, e.g. by oxygen atoms and/or aromatic nuclei. Specification 705,838 is referred to.ALSO:Antimicrobial compositions comprise one or more salts of hydroxy-alkane sulphonic acids of the formula R-CH2-SO3H (wherein R is an alkyl radical substituted by at least one hydroxyl group and optionally substituted by halogen atoms) with bis-biguanides of the formula <FORM:0815800/VI/1> (wherein A is phenyl, halophenyl or alkylphenyl and m is an integer from 2 to 12) in admixture with a pharmaceutically-acceptable diluent or carrier, particularly water. An aqueous solutionof 1 : 6-di-(N1-p-chlorophenyldiguanido-N5)-hexane is described.  In the Provisional Specification the bis-biguanide salts are defined in somewhat wider terms.  The compositions may be for medical or general use.  Specification 705,838, [Group IV (b)], is referred to.
Patent GB-464727-A (GB)
Title: Improvements in or relating to porous metallic products
IPC: B22F3/00
Filed: 1936-06-23
Abstract: 464,727. Filtering-media. HEVALOID AKT.-GES. June 23, 1936, No. 17470. Convention date, Jan. 11. [Class 46] [Also in Groups II and XXII] A porous metal article, such as a filter plate, is composed of small elongated or thread-like unorientated metal particles 1 such as scraps of wire or metal sheet, turnings, or elongated filings, entwined with one another, which may or may not be united by means of a layer of more readily fusible metal or alloy which may entirely coat them and may protect them from oxidation ; or the particles may be united by being heated by high-frequency currents while under pressure, and in presence of a neutral or reducing gas. In some cases powder of an auxiliary metal such as copper and a volatile liquid such as alcohol may be mixed with the particles before heating, the metal of the powder forming a coating on the particles.
Patent GB-1209314-A (GB)
Title: Manufacture of laminated articles
Inventor: WOOLER ALAN METCALF
IPC: B29C44/32
Filed: 1967-04-17
Abstract: 1,209,314. Foamed plastics laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 11 April, 1968 [17 April, 1967], No. 17530/67. Addition to 997,086. Heading B5N. In a process for the continuous manufacture of laminates in which a polyurethane reactant mixture is applied to a lower facing sheet 1 and foamed between the sheet 1 and an upper facing sheet 12 the lower facing sheet 1 is held in contact by suction with a heated supporting surface as the sheet passes from the position at which the reactant mixture is applied thereto to the position at which the upper facing sheet 12 is applied. In the machine shown for performing the process the edges 9 of a facing sheet 1 are folded upwardly to form edging strips and are supported by guide rails 8 as the facing sheet passes beneath a transversely oscillated mixing and dispensing head 10 which applies reactant mixture to the sheet 1. Whilst the mixture is applied the sheet 1 passes over heated platens 4b against which it is held by suction. The sheet 1 subse-  quently passes over further heated platens 4a against which it is held by suction during expansion of the foam 11, and before the sheet 1, foam 11, and the upper facing sheet 12 enter the nip between endless belts 2, 13. Heated platens 15, 16 cause curing of the foam in its passage through the nip, and the laminate formed is cut into sections on leaving the nip. The platens 4a, 4b may be heated electrically. The support surface formed by the platens 4b, and the position of the head 10 may be longitudinally adjustable. The support surfaces formed by the platens 4a, 4b may be replaced by a single support surface heated wholly or in part. The facing sheets may be of polyethylene, P.V.C., polystyrene, paper, cardboard or asbestos paper.
Patent GB-425341-A (GB)
Title: Improvements in or relating to kinematograph projectors, particularly toy projectors
IPC: G02B27/06
Filed: 1934-06-13
Abstract: 425,341. Kinematograph apparatus. MANUFACTURAS B. YSUAR SOC. ANON., 12, Carrencß, Bonanova, Barcelona, Spain. June 13, 1934, No. 17531. Convention date, June 13, 1933. [Class 97 (i)] Kinematograph images are projected from images printed on opaque cards which are carried by an endless band driven by rollers of substantially equal diameters and are successively arrested in projecting position by a single stop ; the cards may be connected perpendicularly to the band so as to be slightly spaced, and the movement of the band may be effected through the medium of a second endless band upon which the first band is superposed. As shown, the cards 4 are secured to a band 10 loosely carried on a taut band 11 mounted on two or more equal rollers 12, 14. One roller may be hand-driven, and an intermediate roller 14 may be adjustable in position to tension the bands. A flange 9 arrests each card in turn in the exposure position, and the card is then illuminated by two lamps 1 in laterally placed compartments. Projection is effected by a lens 5 without the use of a reflector in the apparatus.
Patent GB-650074-A (GB)
Title: Improved vertical cloche for tomato and other plants
IPC: A01G13/04
Filed: 1948-06-30
Abstract: 650,074. Cloches. MARRIOTT, J. G. June 30, 1948, No. 17556. [Class 20(i)] A cloche, triangular in plan, is formed of vertical sheets of glass secured at their edges by slotted rubber or the like blocks 4, 5, 6, Fig. 1. An extended cloche of hexagonal form is shown in Fig. 4. Roof sheets may also be secured by slotted blocks.
Patent GB-817024-A (GB)
Title: Improvements in inserted-tooth hobs and the like
IPC: B23F21/16
Filed: 1957-06-03
Abstract: 817,024. Milling-cutters. KRUSE, H., [trading as FETTE, W. [Firm of]]. June 3, 1957 [June 8, 1956], No. 17569/57. Class 83 (3). A hob &c. comprises cutting-teeth 5a on stems 5 held in slots 2 by keys 4a located in keyways formed by grooves 4, 6, in the stems and the body of the cutter respectively, extending obliquely to the bottoms of the slots. Axial pressure applied to the teeth forces the stem against the bottom of the slot, the part of the stem beneath the key acting as a wedge. The stem may be of trapezoidal cross-section, or have parallel sides with a rounded edge 7 and a sloping surface 9. Alternatively, the bottom of the slot may slope, or a step may be formed on the bottom of the slot or on the stem (Fig. 7, not shown). The key, which may be tapered, can be narrower or wider, Fig. 9, than the grooves 4, 6.
Patent GB-990539-A (GB)
Title: Improvements in or relating to signal recording circuit arrangements
IPC: H04S1/00
Filed: 1961-05-15
Abstract: 990, 539. Recording binaural sound; volume compression. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. May 15, 1961 [May 18, 1960], No. 17583/61. Heading G5R. [Also in Division H4] A magnetic recording head has gaps 61, 62 (Fig. 7) for recording stereophonically related signals and lateral pole pieces 66, 67 provide a third gap 68 at right angles to gaps 61, 62 for recording a compression control signal. Head parts 63, 64 are connected by a yoke 69 on which is a winding 70 energized by the control signal. Alternatively, a tape coated on both sides may be used, the stereophonically related signals being recorded on one side and the control signal on the other side. In this arrangement a pole shoe on such other side is connected by a bracket with the main recording head. In another arrangement signals to be kept separate are recorded in different layers of the tape by using appropriate auxiliary A.C. fields. In another embodiment a monaural base signal and one high frequency signal are recorded in one track and the other high frequency signal and control signal are recorded in a second track. Other track coding means are described.
Patent GB-808207-A (GB)
Title: Improvements in and relating to boilers
IPC: F24H1/28
Filed: 1955-06-17
Abstract: 808,207. Boiler furnaces. GUSTAVSBERGS FABRIKER A.B. June 17, 1955 [June 29, 1954], No. 17610/55. Class 51 (1). [Also in Group XIII] In a boiler comprising a water jacket 3 around a furnace 1 and water walls 5-8 heated by flue gases from the furnace, a dust separator 11 is provided laterally of or behind the furnace in the flue gas path between the furnace 1 and water walls 5-8. In the oil-fired boiler shown, two cyclone separators arranged in parallel are surrounded by a water space 12, and each has a hot gas inlet 10 and outlet 14. The space above each separator has an insulated cover. Two or more separators may be provided in parallel or in series, and may have dampers to cut one or more off. The flue gases pass to the chimney 20 through a fan 19 or directly.
Patent GB-679191-A (GB)
Title: Improvements in or relating to heat exchange apparatus for the treatment of milk
IPC: C07C37/72
Filed: 1949-07-04
Abstract: 679,191. Sterilizing liquids. PLETT, O. July 4, 1949 [July 3, 1948], No. 17615/49. Drawings to Specification. Class 49. In a heat exchange apparatus for the treatment of milk consisting of a regenerative section, a pasteurization section and a temperatureregulating section for the inflowing fluid inserted between the pasteurization and the regenerative sections, and one or more cooling sections inserted after the regenerative section, the regenerative section, besides being provided in known manner with heat exchanging plates for raw milk and pasteurized milk, is provided with additional heat exchanging plates for a cooling medium and a heating medium, for use in the treatment of milk for consumption and milk for manufacturing purposes respectively. By using a cooling medium, the pasteurized milk, independent of the regenerative effect, can be cooled to a predetermined temperature for a definite time, whereby the efficiency of the pasteurization section can be determined within absolutely fixed limits. In a preferred embodiment of the apparatus a temperature holder section is inserted after the regenerative section containing the additional heat exchanging plates, which when the apparatus is used for pasteurizing milk for consumption exerts no influence on the pasteurization, whereas when the apparatus is used for the treatment of milk for manufacturing purposes it functions normally i.e. serving as a temperature holder, while the temperature regulating section at the same time allows the milk to receive such a degree of pasteurization that it reacts negatively to Stooch's test.
Patent GB-382590-A (GB)
Title: Improvements in and relating to sea anchors
IPC: B63B21/48
Filed: 1932-06-22
Abstract: 382,590. Parachutes and drag anchors. HEIN, H., 17, Georg-Gr÷ningstrasse, Bremen, Germany. June 22, 1932, No. 17656. Convention date, July 30, 1931. [Classes 4 and 114.] A drag anchor is caused to rotate about its axis in order to prevent oscillations of its cable. The rotation may be imparted through the cable itself or by providing inclined fins e on the resistance body or in front of or behind it. Holes f may be formed in the wall of the body through which fluid flows to impinge on the fins. According to the Specification as open to inspection under Sect. 91 the invention may be applied to parachutes. This subject-matter does not appear in the Specification as accepted.
Patent GB-111883-A (GB)
Title: Improvements relating to the Treatment of Refuse Liquors from Coke Oven and Gas Works.
Inventor: WELLINGTON STEPHEN NEWCOMBE
IPC: C10J3/80
Filed: 1916-12-08
Abstract: 111,883. Wellington, S. N., and Etherton, S. B. Dec. 8. 1916. Materials for making gas.-Gas-producers are supplied with the refuse liquors from coke ovens and gas works. The liquors are collected in a tank, treated with fresh lime, and allowed to flow under gravity into the gus-producer where they are converted into steam and gases.
Patent GB-256206-A (GB)
Title: Improvements in or relating to optical signals
IPC: G08G3/00
Filed: 1926-07-15
Abstract: 256,206. Pintsch Akt.-Ges., J. July 28, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Burners, mounting and adjusting. - In a signal lamp for aerial navigation provided with a Fresnel lens or equivalent opticial device for simultaneously and evenly directing light in all directions, the light source is periodically raised and lowered, or a shutter is periodically moved, or both the light source and shutter are moved independently of each other. In one form, a vertically adjustable gas burner 2 is raised to and lowered from the focus of a cylindrical Fresnel lens 1 by means of a cam-disc 7.
Patent GB-1532066-A (GB)
Title: Pneumatic blood pump
IPC: A61M60/894
Filed: 1976-04-30
Abstract: 1532066 Reciprocating pumps THERMO ELECTRON CORP 30 April 1976 [9 Jan 1976] 17765/76 Heading F1A A pneumatically-activated blood pump for implanting in the body comprises a flexible bladder 112 internally flocked with blood-compatible material and clamped within a housing 114 by adaptors 124, 126, the housing having a connection 140 for receiving pneumatic pulses. The bladder openings may be of different diameter, as shown, or the same diameter, Fig. 1 (not shown). P.T.F.E. sealing rings 130, 132 and 206 permit rotation of the adaptors relative to the housing and bladder. Valves 208 may be lift valves, as shown, or tilting valves, (Fig. 1). The stiffness of the bladder wall is symmetrical relative to plane Y so that the bladder collapses in a three lobe pattern, Fig. 2 (not shown) during the discharge stroke, the pneumatic pulses being controlled to prevent contact between portions of the bladder wall.