baber/WOPTO huggingface dataset:
Patent GB-717763-A (GB)
Title: Improvements in or relating to separation of tyrosine and cystine
Filed: 1951-11-14
Abstract: Cystine and tyrosine are separated by reacting in aqueous suspension a mixture containing cystine and tyrosine with an alkaline reducing agent to reduce the cystine to cysteine, lowering the pH to a range where tyrosine is substantially insoluble and cysteine is soluble, and separating the tyrosine. The process may be used to recover tyrosine and cystine from a mixture containing them by forming an aqueous suspension of the mixture, adding sodium sulphide, potassium sulphide, or ammonium sulphide, to adjust the pH to 9 to 11 and to reduce cystine to cysteine, adjusting the pH to a point where tyrosine precipitates p  and, removing the tyrosine, adding sufficient acid to the cysteine in solution to liberate hydrogen sulphide, removing the hydrogen sulphide and thereby simultaneously oxidizing the cysteine to cystine, and recovering the cystine in the pH range in which it is insoluble.  It is preferred to use an alkali metal or ammonium sulphide as reducing agent and sufficient alkali metal sulphide or mixture of alkali and alkali metal sulphide should be employed to provide at least 2 mols. of alkali metal sulphide for each mol. of cystine and to maintain an adequately alkaline pH level. In a preferred procedure, after the alkaline reduction, the pH is adjusted to between 7 and 9 preferably to 7.5 to precipitate the tyrosine which is removed, e.g. by filtration and the filtrate containing the cysteine is acidified preferably to a pH of about 1.6 to 2.0, although the range may be 0.5 to 5.0, the mixture heated to remove the hydrogen sulphide and oxidize the cysteine to cystine and the pH of the solution is then adjusted to about 2 to 6, preferably 3.5 to 6, its precipitate the cystine which may be removed by filtration.  The process is particularly applicable to crude mixtures of tyrosine and cystine obtained by the hydrolysis of wheat gluten. The preferred acid for acidifying the filtrate containing cysteine is sulphuric acid although other mineral acids, e.g. hydrochloric acid, may be used.  Examples are given for the recovery of pure tyrosine alone and for the recovery of both cystine and tyrosine from a crude mixture of the amino acids obtained by hydrolysis of wheat gluten, sodium sulphide being used as the reducing agent in each case and the recovered tyrosine and cystine being finally purified by treatment with decolourizing carbon.
Patent GB-977356-A (GB)
Title: Improvements in or relating to magnetic developer powder applicators
IPC: G03G15/09
Filed: 1962-07-11
Abstract: 977, 356. Electrophotographic developing apparatus. W. ZINDLER, [trading as LUMOPRINT ZINDLER KOM. GES.]. July 11, 1962 [July 27, 1961], No. 26702/62. Heading G2H. Apparatus for applying developer powder to an exposed xerographic material comprises a magnet roller, a container for developer powder into which the roller dips thus forming a brush on the roller and a stripper for removing the brush before the roller re-enters the powder supply. This stripper may be in the form of a knife, or have a serrated edge or be screwshaped. As shown, the apparatus includes a roller 1 rotatable on shaft 5 and having alternate longitudinal north and south poles. A powder brush 4 forms on the drum as it rotates and contacts the exposed material as it passes from rollers 8 and 9 to rollers 10 and 11. The brush 4 is removed by stripper 12. A second stripper 14, in the form of a comb, may be provided in the developer. Instead of having a knife edge 13, the stripper may be a single-thread screw or a screw with opposite threads in each half of the stripper. Alternatively, the middle part of the strip per may be a trough (cf Fig. 2, not shown). In the screw form, it may also act as a stirrer for the developer and for new developer powder which is scrapped off a briquetted rod of developer 32 by the powder brush.
Patent GB-1292430-A (GB)
Title: Spool box
IPC: G03B21/32
Filed: 1971-04-19
Abstract: 1292430 Containers for reels KALLE AG 19 April 1971 [14 April 1970] 26769/71 Heading B8P A reel container comprising two separable hollow parts fitting one within the other and thermo-formed from transparent film of P.V.C., has one or more feet portions 6 by which the container can be supported on a surface 10. The wall thickness may range from 150 to 1000Á and is preferably within the range 250 to 500 Á. The two parts may be of different thickness. The plane circular base surfaces of each part may be flat, concave or convex.
Patent GB-1278143-A (GB)
Title: Phosphorus-containing compounds and preparation of polyurethanes therefrom
Inventor: BUISSON MICHEL
IPC: C08G18/38
Filed: 1970-06-03
Abstract: 1278143 Polyurethanes NAPHTACHIMIE 3 June 1970 [4 June 1969] 26775/70 Addition to 1201097 Headings C3C and C3R [Also in Division C2] A polyurethane is prepared by reacting a phosphorus-containing compound with an organic polyisocyanate, and, if desired, an organic polyhydroxylated compound not containing phosphorus. The phosphorus-containing compound is prepared by reacting a chloro-chloroalkyl phosphate having an average of 0À5 to 2À5 chlorine atoms attached directly to each phosphorus atom with a primary or secondary amine having one or more groups capable of reacting with an organic isocyanate, in an aqueous medium at 0 to 100 C. in the presence of a hydrochloric acid acceptor whose reaction products with hydrochloric acid are watersoluble, the number of molecules of amine being substantially equal to the number of chlorine atoms attached directly to phosphorus, and then removing the aqueous phase. A polyurethane premixture composition, which is subsequently reacted with a polyisocyanate, may comprise such a phosphorus-containing compound and other ingredients, such as polyether polyols, catalysts and foaming agents. Specified additives for the premixture composition are a polyether polyol prepared by condensing propylene oxide and sorbitol, dimethylethanolamine, triethylenediamine, silicon oil, trilchloromonofluoromethane and dibutyl tin dilaurate. A specified phosphorus-containing compound is that prepared by reacting diethanolamine with the condensation product of phosphorus oxychloride and propylene oxide. The polyisocyanate may be polymethylene polyphenylisocyanate.
Patent GB-451763-A (GB)
Title: Improvements in or relating to filter devices for use in tobacco pipes
IPC: A24F1/20
Filed: 1935-08-13
Abstract: 451,763. Tobacco pipes. BLELOCH, W. E., 29, Alexandra Road, Epsom, Surrey. Aug. 13, 1935, No. 26799/34. [Class 130] A filter plug for tobacco pipes consists of a wad d of absorbent material in a rigid fireproof holder e having a perforated base formed with an elongated slot h. The plug is placed in the pipe bowl with the perforated base uppermost. The absorbent material may be cottonwool, preferably with the fibre disposed longitudinally of the cylindrical plug, or a coiled strip of corrugated absorbent paper or other material.
Patent GB-1398775-A (GB)
Title: Toaster
IPC: A47J37/08
Filed: 1972-06-08
Abstract: 1398775 Toasters MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd and TOYO PRESS CO Ltd 8 June 1972 26911/72 Heading A4D A toaster comprises: an inner casing 1 defining bread toasting chambers 5; a vertically-movable bread carrier frame 6; an elevator mechanism 7 actuable to vertically move said carrier frame; an outer casing 38 provided with bread inlet openings 41; a closure 42 slidably mounted on said outer casing and adapted to close said bread inlet openings, the closure being movable between positions opening the bread inlet openings and closing the bread inlet openings upon actuation of the elevator mechanism 7; a closure operating mechanism including an arm 52 having a horizontal lower end portion pivotably supported by the inner casing and a generally upright portion operatively connected at its upper end to said closure, said elevator mechanism having an engaging element 60 operable to engage the generally upright portion of the arm 52 to move the closure to a bread inlet openings opening position, the elevator mechanism also having an engaging element 59 operable to engage the arm 52 to move the closure to a bread inlet openings closing position; and a manually operative mechanism 67 for causing pivotal movement of the arm 52, engagement between the engaging element 60 and said arm being releasable upon actuation of the manually operative mechanism. The bread carrier frame 6 is provided with an elevator plate 9 slidably mounted on a vertical guide post 8. A spring 10 biases the carrier frame 6 upwardly. The carrier frame is retained in its lowered position by the latching of a roller 14 and a hook 12 pivotably supported by the toaster inner casing. The hook 12 may be released from the roller 14 by lifting a lever 11 or may be automatically released at the end of a toasting operation by a releasing mechanism 18 actuated by a bi-metallic device. The releasing mechanism 18 includes a transmission rod 25 operated by the bi-metallic device to move a lever 26 and cause a weight 28 to drop on a shock lever 29. The shock lever 29 is pivoted to release engagement of the roller 14 and hook 12.
Patent GB-748376-A (GB)
Title: Improvements in or relating to vapour vacuum pumps
Inventor: BARRETT ARTHUR STEPHEN DENNIS
IPC: F04F9/00
Filed: 1953-10-01
Abstract: 748,376. High vacuum pump. EDWARDS & CO. (LONDON), Ltd., W. Oct. 1, 1953, No. 27001/53. Class 71. A vapour vacuum pump is provided with means for causing the discharged gas to accelerate and subsequently impinge upon a surface to change direction in order to separate pump liquid entrained therein. A chamber 7 is connected to the outlet 11 of the separating chamber 12 of a pump 8 and comprises a plurality of " scrubbers " 15 each of which comprises a first plate 3 apertured at 5 to cause the gas to accelerate, and a plate 4 against which the gas impinges, provided with holes 6 of larger nett area. In addition gauze discs 16 are provided. The scrubbers are interchangeable to suit various gas flow rates or the apertures in the first plate may be made adjustable. The chamber 7 may replace the normal separator chamber. In a modification the scrubbers comprise concentric cup-shaped apertured members.
Patent GB-1267744-A (GB)
Title: Hot-water meter
Inventor: HANSEN JENS PETER FISCHER
IPC: G01K17/02
Filed: 1969-05-28
Abstract: 1,267,744. Hot water meter. INGENIORFIRMAET CONSTANTIN BRUN A. S. May 28, 1969 [May 28, 1968], No. 27050/69. Heading G1D. A hot water meter comprises a calorimeter 3 connected by conduits 7 to a coupling 8 for connection to a throttling device for diverting part of the hot water flow through the calorimeter, a distillation ampoule consisting of an evaporation container 5 adjacent the calorimeter and a condensation container 6, and a recess 9 housing a copper heat conductor 12 which extends such a distance from the condensation container towards the coupling that the evaporation container and the condensation container achieve the same temperature under no-load conditions. The heat conductor 12 may be soldered to or in one piece with a heat distributing rod 11.
Patent GB-207796-A (GB)
Title: Closing device for jam jars and the like, which are kept closed by the pressure of the external air
IPC: B65D51/16
Filed: 1923-10-29
Abstract: 207,796. Conservenglasges. Bott & Co. Nov. 30, 1922, [Convention date]. Vacuum closures.- In jam jars &c. with - closures maintained in position by external air pressure and provided with a boring d closed by a plate &c. for facilitating opening, the plate e is formed with one or more collars f engaging grooves in the surface on which it is held. As shown, the boring d is provided in the - cover b, and the plate e is seated in a recess e in the cover and made of soft packing material, such as indiarubber, with a reinforcing layer g of stiff material and of a form corresponding to that of the collar. The plate may be circular or of other form.
Patent GB-726644-A (GB)
Title: Branching arrangements for electric pulse communication systems
IPC: H04J3/00
Filed: 1953-10-02
Abstract: 726,644. Pulse signalling. STANDARD TELEPHONES & CABLES, Ltd. Oct. 2,1953 (Nov. 12, 1952], No. 27067/53. Class 40 (5). At a junction station, having two-way paths to three or more terminal stations, each path carries a train of marker pulses and interleaved trains of channel pulses, the marker pulses on one incoming path being used to synchronize all the received channel pulse trains and to control means for assembling the pulse train transmitted to at least one terminal by selecting some channel pulses from those arriving from two or more other terminals. In the embodiment described, the radio transmitters 56, 55, 47 and 43 and receivers 79, 37, 84 and 75 at the junction station communicate respectively with the north, south, east and west terminals 16, 17, 1 and 2. The incoming pulse train 36 from receiver 37 is used as the master control train, the double marker pulse being separated therefrom in circuit 38 where it is converted into a control pulse 49 which is fed to a delay line 50 provided with tappings equal in number to the number of channels. As these are four interconnected paths at the junction, each transmitter is fed from a mixer connected to the outputs of three gate circuits by which pulses are selected from incoming pulse trains from the other three paths. The gating pulses are derived from selected tappings on line 50 through sets of bus-bars 51 ... 54. In order to ensure correct interleaving of all the pulse trains, a master source at each terminal station is synchronized by a marker pulse 71 supplied to all the transmitter mixers from a gate circuit 39 opened by a pulse 69 from the end tapping on line 50 to pass the marker pulse from pulse train 36.
Patent GB-648847-A (GB)
Title: Improvements relating to sealing means between rotating and non-rotating machine parts
Inventor: WILKINSON SAMUEL CLIFFORD WALT
IPC: F16J15/36
Filed: 1947-10-09
Abstract: 648,847. Stuffing-box substitutes. CRANE PACKING, Ltd. Oct. 9, 1947, No. 27130. [Class 122(v)] In a liquid sealing means between a rotary member 1 and a stationary member 12, a stationary sealing ring 11 is located in the member 12 and a rotary sealing ring 9 is mounted on the rim of the outer cylindrical wall of an annular sealing ring carrier 4 of U-shaped cross section the inner cylindrical wall of which embraces the rotary member 1, the material composing the carrier 4 being such that the outer wall can creep axially with respect to the inner wall, the rotary sealing ring 9 being maintained in pressing contact with the opposed non-rotary sealing ring 11 by springs 15 housed in the cavity between the inner and outer walls of the carrier 4, which cavity also contains part of a drive ring 5 presenting a shoulder to take the counter pressure of the springs 15 without preventing the aforesaid axial creep of the outer wall, the remainder 5<SP>1</SP> of the drive ring extending into embracing contact with the rotary member 1 so as to be driven thereby, the said sealing means including a rigid supporting ring 10 shaped and located inside the U-shaped ring carrier 4 to prevent the latter from becoming unduly distorted by the external fluid pressure acting upon it. The stationary ring 11 is axially adjustable towards the rotary ring 9 by the pressure of a backing ring 16 enclosed by an adjustable hood member 17 which may be locked in position by a pin 20. Specification 648,814 is referred to.
Patent GB-828487-A (GB)
Title: Improvements in and relating to davits for ships
Inventor: SCHAT MARINUS LEENDERT
IPC: B63B27/10
Filed: 1957-08-28
Abstract: 828,487. Jib cranes. SCHAT DAVITS Ltd. Aug. 28, 1957, No. 27135/57. Class 78 (4). The horizontal jib 27 of a ship's crane is integral with a vertical hollow spindle 26 supported in a column 22 by upper and lower bearings 25, 24 and slewed by a worm-wheel 28 fast with the spindle 26 and turned by a worm 29 carried in bearings on their column 22. The worm 29 may be turned through gearing from a motor or, alternatively, by a crank 30 which can be placed on one end of the worm shaft to drive it directly or on the other end to drive it through reduction gearing. The hoisting drum 40 in the construction illustrated may be driven by hand or by a motor subject to an overhoisting control. Two such cranes may be mounted on the deck of a tanker or bulk cargo vessel and may be positioned for loading stores to the crew's quarters or for loading spares to the engine room through a hatch associated with a travelling bridge crane (not shown) above the engine room.
Patent GB-1148802-A (GB)
Title: Microcrystalline cellulose granules containing useful oils
IPC: A61K9/16
Filed: 1966-06-17
Abstract: 1,148,802. Microcrystalline cellulose granules containing vitamins. EASTMAN KODAK CO. 17 June, 1966 [18 June, 1965], No. 27168/66. Heading A5B. Vitamin-containing beadlets or granules having an average particle size greater than 200 mesh, U.S. Screen Size, are made of microcrystalline cellulose and contain from 15-40%'  by wt. of a fat-soluble, vitamin-active oil and from 1-11% by wt. of polyoxyethylene (20) sorbitan monooleate. The oil may contain vitamins A, D, E, and/or K and also an antioxidant.
Patent GB-533063-A (GB)
Title: Process for sealing glass tubes on to glass vessels
IPC: H01J5/24
Filed: 1939-10-04
Abstract: 533,063. Welding and jointing glass and silica. EGYESULT IZZOLAMPA ES VILLAMOSSAGI R.T. Oct. 4, 1939, No. 27215. Convention date, Oct. 4, 1938. [Class 56] A process for sealing a vitreous tube 20, Fig. 3, on to a vessel or bulb 15 of glass or silica consists in placing an end of the tube in contact with the wall of the bulb, and then heating the parts in contact by a pointed flame 17 acting on the wall of the bulb from inside and in the direction of the axis of the tube. The area of the bulb on which the flame plays is softened and is forced by the pressure of the flame to enter the end of the tube, as shown in Fig. 5. The burner 18 is then moved nearer the softened area, or the pressure of the gas is increased, and the flame pierces the bulb wall and penetrates into the tube. The pressure of the flame causes the glass which has entered the tube to weld to the softened glass at the end of the tube and form a fused joint. After the joint is completed, gas is cut off from the burner and air is blown through it to cool the joint. During the operation, the open end of the bulb may be closed by a plate 21<SP>1</SP> to throttle the escape of the burnt gas and thus increase the pressure within the bulb. In a modification, the tube 20 is sealed first to the wall of the bulb, the wall then being perforated and welded to the tube in the manner described.
Patent GB-455944-A (GB)
Title: Improvements in and relating to paper bags
IPC: B65D33/24
Filed: 1935-10-02
Abstract: 455,944. Paper carrier-bags. SIEBENBORN, L., 11B, Lindenthalg³rtel, Cologne, Germany. Oct. 2, 1935, No. 27226. [Classes 94 (ii) and 133] In a paper carrier-bag of substantially rectangular cross section, more particularly for carrying bottles, of the kind furnished with aligned hand slots e in cardboard &c. reinforcements g, and with a closing flap d, h adapted to be passed through the hand slots, the closing flap is formed as an integral portion of the cardboard &c. reinforcement g associated with an upper edge of the bag. A strip f furnished with a dry rubber composition may seal the flap d, h in position. In a modification, Fig. 4, the flap d may be formed integrally with the reinforcement at the upper edge i of a hand hole, the flap being sealed in the closed position by dry adhesive at k. In a still further modification, to the construction of Fig. 4 is added an adhesive flap which folds over the top edges of the bag and to which the flap d is secured. A bottom reinforcement c is also provided.
Patent GB-267039-A (GB)
Title: Bottle washing machine
IPC: B08B9/26
Filed: 1926-10-30
Abstract: 267,039. Flower, A. L. Oct. 30, 1926. Bottles, washing.-The bottles are supported in pockets formed by longitudinal partitions h on the periphery of the drum g and fins c supported by the inner face of the stationary tank a. The fins are inclined within the lower half of the tank and are straight within the top portion, or they may be omitted from the top portion. The rotation of the drum causes the partitions and fins to coact to move the bottles from one end of the drum to the other, the progressive movement taking place only within the lower half of the tank.
Patent GB-1107166-A (GB)
Title: Chlorine-stable detergent compositions and process for the preparation thereof
IPC: C11D11/00
Filed: 1966-06-17
Abstract: Chlorine-stable detergent compositions containing a non-ionic surfactant are prepared by adding an aqueous solution of a non-ionic surfactant to tetrasodium pyrophosphate or a mixture of tetrasodium pyrophosphate and at least one other inorganic salt, the mixture containing at least 50% by weight of tetrasodium pyrophosphate, whereby hydration of the condensed phosphate and simultaneous absorption of the surfactant occurs, adding a hydrated sodium metasilicate to the hydrated condensed phosphate with mixing, before or after reducing the size of the mixture to a desired particle size, and thereafter adding an active chlorine containing compound to the mixture whereby a dry, free-flowing granular product is obtained, and a detergent composition comprising the above ingredients whenever prepared by a processas described.  Non-ionic surfactants mentioned are condensates of polyalkylene oxides with aliphatic alcohols, alkyl phenols, acids, amines, amides and alkyl mercaptans, inorganic salts specified are sodium carbonate and sodium sulphate and chlorine active compounds include chlorinated trisodium phosphate, trichloro-cyanuric acid, the sodium or potassium salt of dichlorocyanuric acid, sodium hypochlorite and 1,3-dichloro-5,5-dimethyl hydantoin.
Patent GB-1148079-A (GB)
Title: Improvements relating to pumps and reversible pump turbines
Inventor: HARTLAND DEREK
IPC: F03B3/10
Filed: 1966-06-17
Abstract: 1,148,079. Friction clutches. ENGLISH ELECTRIC CO. Ltd. 13 June, 1967 [17 June, 1966], No. 27294/66. Heading F2C. [Also in Division F1] A clutch 26, 28 between a starter turbine runner 18 and a pump-turbine runner 4, 6 (see Division F1), is engaged by supplying pressure water through pipe 32 into a sealed chamber 30, and is disengaged by supplying pressure water to an annular space 52, or by supplying pressure fluid through pipes 40 to jacks 38 the space 52 then being permanently connected to a low pressure. When the clutch is disengaged by pressurizing the space 52, the space is thereafter connected to a low pressure via a valved passage 54 and the clutch is maintained in its disengaged position by the jacks 38. Movement of the jacks 38 is co-ordinated by switches 48. The clutch may alternatively comprise one or a number of pairs of engageable flat annular surfaces, or a dog coupling. The clutch may be engaged automatically when the runner 4, 6 overspeeds.
Patent GB-368206-A (GB)
Title: Improvements relating to thread guides for the traverse rails for yarn reeling machines
IPC: B65H57/06
Filed: 1931-10-01
Abstract: 368,206. Thread guides for reeling- machines. BALLANTYNE BROS. & CO., Ltd., D. and FREER, J., March Street Mills, Peebles. Oct. 1, 1931, No. 27319. [Class 120 (ii).] A thread-guide for the traverse rails of reeling- machines comprises a length of wire formed at one end as a helical coil 1, constituting the thread-guide proper, and at the other as a shank .2 adapted to be received in a hole 5 in a rectangular block 3 permanently secured to the rail and to be secured therein by a screw 7 disposed in a perforation 6 at right-angles to the hole 5 and engaging the shank 2.