baber/WOPTO huggingface dataset:
Patent GB-1004638-A (GB)
Title: Process for culturing b megatherium and products thereof
IPC: C12P19/42
Filed: 1962-12-12
Abstract: A product containing vitamins, antibiotics and growth factors which may be used for human and animal consumption, is obtained by coating a solid carrier of cereal or other vegetable origin in particulate form with an active culture of B. megatherium in a liquid nutrient therefor, incubating in the presence of air at 30-45  DEG C. for a time sufficient to complete the growth of the culture, and drying the product.  The carrier may be cereal grains, soy bean meal, malt sprouts or brans from wheat, rice or corn; when cereal particles are used the product may be vitamin B12.  The solid may contain proteinaceous material, e.g. gelatin, casein, or soy or cottonseed proteins, which forms an air impervious film around the particles on drying.  An example is given.ALSO:A product containing vitamins, antibiotics and growth factors which may be used for human and animal consumption, is obtained by coating a solid carrier of cereal or other vegetable origin in particulate form with an active culture of B. megatherium in a liquid nutrient therefor, incubating in the presence of air at 30 DEG  C. to 45 DEG  C. for a time sufficient to complete the growth of the culture, and drying the product. The carrier may be cereal grains, soy bean meal, malt sprouts or brans from wheat, rice or corn; when cereal particles are used the product may be Vitamin B12.  The solid may contain proteinaceous material, e.g. gelatin, casein or soy or cottonseed proteins, which forms an air-impervious film around the particles on drying.  An example is given.
Patent GB-1098450-A (GB)
Title: Fault tolera nt superconductive memory
IPC: G11C15/06
Filed: 1966-10-20
Abstract: 1,098,450. Circuits employing superconductive elements. GENERAL ELECTRIC CO. Oct. 20, 1966 [Oct. 22, 1965], No. 47076/66 Heading H3B. [Also in Division G4] . Each drive line 41(i) of an addressable memory, e.g. a coincident current thin film memory 40, has an individual address selection circuit so that faulty selection circuits may be disabled without affecting the remaining part of the memory. To select a particular X- coordinate drive line, e.g. 41(3), an initial reset current is applied via switch 45 to the gate conductor of cryotrons connected in shunt paths 43(i), each shunt path 43(i) being connected in parallel with its associated drive line 41(i). The cryotrons are thus rendered resistive so that an input current Ix travels to earth via each of the drive lines. The line 41(3) is then selected by closing switches 44(2) and 44(3) so that current is applied to the gate conductors of cryotrons connected in drive lines 41(1), 41(2) and 41(4), as shown, the drive current Ix being then diverted away from these drive lines and through their corresponding shunt lines 43(1), 43(2) and 43(4). Thus only one particular X-coordinate drive line, i.e. 41(3), conducts current, and this line may cooperate with a similarly selected Y-coordinate drive line 410 at the cross-over point 412, to magnetically influence the thin film memory plate, whose state at the point 412 is sensed in conventional manner. Shunt path-drive line cross-overs, e.g. 413, 414 or shunt path-shunt path cross-overs, e.g. 415 are not sensed. To reduce space the lines at each set of four cross-over points, e.g. 412-415, may be formed in layers on the memory plane, while to reduce the number of lines traversing the memory a pair of drive lines may share the same shunt path (Fig. 5, not shown). In another embodiment (Fig. 7, not shown), a particular drive line is selected by inhibiting particular ones of cryotrons (77(i)) and only then allowing drive current to pass through the selected drive line, while in a further embodiment (Fig. 8, not shown), the shunt paths do not cross the memory plane and the drive lines are therefore formed as loops, the resulting effect being a reduction in the required number of cryotrons. Auxiliary memory address selection circuits (Fig. 9, not shown), are also described, any one of which is enabled to replace a faulty selection circuit which is then by-passed.
Patent GB-1015727-A (GB)
Title: Dehumidifiers
Inventor: SOUTER GEORGE ROBERT
IPC: F24F3/153
Filed: 1963-11-28
Abstract: 1,015,727. Refrigerating; defrosting. WESTOOL Ltd. Nov. 27, 1964 [Nov. 28, 1963], No. 47118/63. Heading F4H. A dehumidifier comprises a refrigerating circuit having an evaporator coil 4, a condenser 2, and means, e.g. a fan 5, for passing air first over the evaporator to cool the air, and thereby extract moisture from the air, and thence over the condenser to reheat the air. Further heating may be obtained by passing the air over the fan motor 8 and compressor 1. Means, e.g. valve 12 or a reversing valve, Figs. 3 and 4 (not shown), are provided for temporarily circulating warm refrigerant through the evaporator coil 4 to defrost it. Said means may be time-controlled and may have a temperature sensitive override. The moisture extracted from the air is collected in a drip tray 6 which is heated by warm refrigerant passing through pipe 9.
Patent GB-1443965-A (GB)
Title: Process and apparatus for cleaning webs travelling at high speed
IPC: B29C48/25
Filed: 1973-10-10
Abstract: 1443965 Cleaning webs BASF AG 10 Oct 1973 [11 Oct 1973] 47272/73 Heading D1L Plastics film is cleaned by contacting the travelling film 9 with an absorbent material 7 detachably fixed to roller 6 or endless band 35 moving in the opposite direction, the material having had applied thereto a cleaning liq. e.g. aq. propanol, from a nozzle 8, the liq. take-up being controlled by pressure rollers 17 or 18, 19, and the cleaned film being dried by air jets 33. The material may be a non-woven polymer or velour. Figs. 4-7 (not shown) show various constructions for the roller.
Patent GB-1255646-A (GB)
Title: Vulcanization of rubber
Inventor: BAKER CRISPIN STUART LEWORTHY
IPC: C08K5/32
Filed: 1968-10-04
Abstract: 1,255,646. Vulcanizing rubber. NATURAL RUBBER PRODUCERS RESEARCH ASSOCIATION. 2 Oct., 1969 [4 Oct., 1968], No. 47289/68. Headings C3E and C3P. A rubber containing carbon-carbon double bonds is reacted with a compound of formula X-Ar-NO where X is hydroxy or a primary or secondary amino group and Ar is an aromatic group, and the pendant amino or hydroxy groups in the product are reacted with a polyfunctional linking agent to cross-link the rubber. The preferred linking agent is a polyisocyanate. A drying agent and a zinc, cadmium or stannous dithiocarbamate, dithiophosphate or mercaptobenzthiazole may also be included. The linking compound may be added as a decomposable precursor therefor, e.g. a bis-phenol adduct of an isocyanate. In a modification a nitrosophenol-diisocyanate reaction product may be added to the rubber together with, if desired, excess isocyanate.
Patent GB-1414299-A (GB)
Title: Catalysts
IPC: B01J21/04
Filed: 1972-10-13
Abstract: 1414299 Pyridine and 3-methylpyridine DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 13 Oct 1972 [15 Oct 1971] 47291/72 Heading C2C [Also in Division B1] Pyridine and 3-methyl-pyridine are produced by the gas phase reaction of acrolein with ammonia in the presence of a catalyst consisting of Al, F, O and one or more elements of the second, third (excluding Al) or fourth groups of the Periodic Table with an atomic ratio Al/F of 1000 : 25 to 1000 : 800 and an atomic ratio Al/the group 2-4 element(s) of 1000 : 5 to 1000 : 200 and the preparation of which has included a step of contacting a mixture of the elements or compounds containing them with oxygen at 550-1200 C. Specified reaction conditions include a pressure of 1-3 atm., a temperature of 300-500 C., a residence time of 0À5-5À0 secs. and a mole ratio of ammonia/ acrolein of greater than stoichiometric, e.g. 1 to 10 : 1. To preferentially produce pyridine, the reaction gas should contain 1 to 4 mols. oxygen/mol. acrolein, whilst to preferentially produce 3- methyl-pyridine there should be a lower oxygen content. Suitably, the acrolein is initially diluted with diluent gas and added to the ammonia immediately before the reaction zone at 200-400 C. The examples describe the use of catalysts containing Al, F, O, one or more of Mg, Ba, Zn, Sn or Zr and B and/or Si.
Patent GB-472971-A (GB)
Abstract: 472,971. Valves. PARKINSON STOVE CO., Ltd., and SMITH, R. E. April 1, 1936, No. 9581. [Class 135] [Also in Group XI] The gas supply to a gas-fire is controlled by a foot-operated pedal or the like. In one form, the pedal 13 is provided at one end of a spring- pressed pivoted lever 12, connected by a link 15 to a rotatable plate 16 on a rotatable spindle 17 engaging the cock spindle (not shown), a pivoted pawl 20 on the plate co-operating with a ratchet wheel 19 on the spindle 17 so that the cock is rotated step-by-step through 90‹ for opening and closing the cock alternately. A double-ended cam 22, keyed on the spindle 17, is adapted to engage a spring strip 23 so as to project a tongue 24 thereon through an opening in the front of the fire to indicate when the cock is open. In a gas-fire having a duplex burner and cock, two separate indicator strips, operated respectively by cams at rightangles to one another, indicate when all or half of the burner is supplied with gas, the cock being turned successively to the " full-on," "half-on," " off " and initial positions. In modifications, the lever may be replaced by a spring-pressed member movable vertically in a slot in the frame, or it may operate the cock spindle through a rack-and-pinion and a oneway clutch. Two pedals may be coupled to the cock so that depression of one pedal turns on the gas and depression of the other turns off the gas and returns the first pedal to .its initial position. A pivoted pedal lever may be coupled by a link to a radial arm on the cock and held in the depressed position against the action of a spring or weight by a spring-pressed or gravity catch, which can be tripped by the foot, or by depressing the pedal beyond the position in which the cock is open, to release the lever and allow it to return and close the cock. A slide valve may be employed. The Provisional Specification states also that the gas supply to the parts of a duplex burner may be turned on and then off successively by successive actuations of the pedal.
Patent GB-1199728-A (GB)
Title: Collapsible Crate or like Container
Inventor: BARNSHAW FRANK ROBINSON
IPC: B65D6/18
Filed: 1966-10-24
Abstract: 1,199,728. Collapsible crates. ZAMBA CO. Ltd. 9 Oct., 1967 [24 Oct., 1966], No. 47543/66. Heading B8P. [Also in Division F4] A collapsible crate comprises wall panels hinged one to the next, a bottom panel hinged to one of the wall panels, means for supporting the bottom panel in a substantially horizontal position when the crate is opened out for use, and means at the top of the wall panels for supporting a second crate. The wall and bottom panels are made of intersecting wires. As illustrated, the bottom panel supporting means comprises projections 10 at the bottom of the wall panels, and the means for supporting a second crate is provided by hooks 11 and projections 10 at the top of the wall panels. Each wall panel has a frame formed by bars 6, 7 and members 8, 9 of narrower gauge welded thereto. Labelling plates 13, 13a are provided. Means may be provided for locking the bottom panel in its substantially horizontal position. For use as an incinerator the crate may be provided with legs or alternatively the bottom panel may be hinged to the one wall panel at a position above that illustrated.
Patent GB-1075457-A (GB)
Title: Instant release connection
Inventor: MATTHEWS STANLEY EDWARD
IPC: F16L23/10
Filed: 1964-11-23
Abstract: 1,075,457. Pipe coupling. GRAY TOOL CO. Nov. 23, 1964, No. 47548/64. Heading E2B. [Also in Division F2] A conduit coupling 10 comprises a shoulder member 34 disposed adjacent a terminal portion 26 of one of a pair of clamping elements, and a releasable connecting member 38 pivotally secured to an adjacent terminal portion of the other clamping element for swinging movement about an axis substantially parallel to the axis of the coupling, an arcuate bearing surface 54 being formed on the shoulder member 34 having an axis of curvature offset from the pivotal axis of the connecting member, and an adjustable device 46, 48 having a face complementary in curvature to the bearing surface of the shoulder member being provided on the connecting member 38 for tightening the clamping elements and for permitting quick release thereof. As shown, in which the coupling is used to couple conduits 66, 68 with the interposition of a sealing member 76, the clamping elements are of channel-like section and engage flanges 70, 74 formed or provided on the ends of the conduits. The adjustable device 46, 48 is in the form of a nut and washer, and the connecting member 38 is retained in the clamping position by means of a shear or locking pin 52. The coupling may comprise three or more pivotally or flexibly connected clamping elements.
Patent GB-1332004-A (GB)
Title: Vacuum pump having rotor and stator construction
Inventor: SHAPIRO ASCHER H
IPC: F04D19/04
Filed: 1970-10-08
Abstract: 1332004 Molecular pumps SARGENTWELCH SCIENTIFIC CO 8 Oct 1970 [27 Oct 1969] 47860/70 Heading F1C A multi-stage molecular vacuum pump comprises rotor discs formed integrally with blades 94, as by means of a milling cutter of stepped configuration providing three segments A, B, C in each blade with angled faces 114, 116, 118 each parallel to the opposing angled faces 120, 122, 124 of the next blade, there being an unobstructed line of sight through the space between the segments A of each pair of adjacent blades in a direction parallel to the axis of rotation. As shown, such a line of sight occurs also for the segments B but to a lesser extent. The blade angle is 20 degrees to 50 degrees, preferably about 40 degrees. The corresponding stator discs are of similar form but of opposite hand. This configuration, giving high volumetric flow, is used for the initial stages. For the intermediate stages, a smaller blade angle, 15 degrees to 30 degrees, preferably about 20 degrees, is used, and the blades may overlap in all segments A, B, C. For the final stages, the blade angle is 5 degrees to 20 degrees, preferably about 10 degrees, with considerable overlap between adjacent blades, e.g. to the extent of about half the blade chord, this configuration giving a high pressure rise per stage. The blades of the final stages are short, with only a single segment, the hub to tip ratio being higher than in the previous stages, ranging from 0À75 to 0À95 instead of 0À4 to 0À8, with a preferred value of 0À9 instead of about 0À5 to 0À6. Since the volumetric flow is small in the final stages, the blades can be thicker than in the previous stages, the thickness being, say, about half the inter-blade spacing.
Patent GB-970854-A (GB)
Title: Oxidation of selenium
IPC: C07C205/57
Filed: 1961-01-23
Abstract: Selenium is dissolved in an organic solvent and nitrogen dioxide is passed thereinto whilst maintaining the temperature above 100 DEG C., to precipitate selenium dioxide, nitric oxide being formed at the same time.  Specified solvents are halogenated hydrocarbons having 1-6 chlorine atoms, e.g. chlorobenzene, homologues of the latter, chlorinated diphenyls and nitrobenzene. Undissolved selenium may be present initially, and dissolve as selenium already in solution is removed by oxidation; alternatively, additional selenium may be added as the oxidation proceeds.  Temperatures up to and exceeding 200 DEG C. may be used; in the example, nitrogen dioxide is passed into a flask containing selenium in trichlorobenzene at 185 DEG  C. at a point just above a down-draught propeller.  Nitric oxide formed in the reaction may be dried, mixed with oxygen or air, passed through silica gel to regenerate nitrogen dioxide and recycled to the process.  Selenium dioxide may be separated by centrifuging or filtering the mixture and washed with selenium-free solvent followed by benzene or naphtha.
Patent GB-1122524-A (GB)
Title: Substituted s-triazines and a process for the preparation thereof
IPC: C07D413/04
Filed: 1966-10-26
Abstract: Novel compounds of the formula <FORM:1122524/C2/1> (wherein R1 and R2 are H or C1- 6 alkyl or hydroxyalkyl; Y is CH3, -CH2hal, CHhal2, Chal3, halogen, OR or SR, in which R is C1- 6 alkyl which may be substituted by OH, OR5, NHR5, N(R5)2 or halogen, R5 being C1- 6 alkyl or aryl or the two groups R5 on N being joined to form a heterocyclic ring which may contain another hetero atom, or Y is NR3R4, in which R3 and R4 have the same meanings as R1 and R2 or may represent halo alkyl or alkoxyalkyl groups or may be closed to form a ring optionally containing another hetero atom, and Z is NR3R4, but Y and Z cannot both be NH2) are prepared by hydrolysis of the corresponding triazines containing a -C(R1.R2)-O.CO.R6 side chain (wherein R6 is C1- 6 alkyl or hydroxyalkyl, aryl or hydroxyaryl) in the presence of a water-miscible organic solvent and of substantially molar quantities of barium hydroxide. If Y is Chal3, the products may optionally be reacted with an amine NHR3R4 to replace the Chal3 group by the group NR3R4.
Patent GB-1200347-A (GB)
Title: Heat sealing apparatus
IPC: B29C65/74
Filed: 1967-10-25
Abstract: 1,200,347. Seaming non-metallic sheet material. WINDMOLLER & HOLSCHER. 25 Oct., 1967 [6 Dec., 1966], No. 48554/67. Heading B5K. Apparatus for heat sealing at least two superimposed thermoplastic sheets with the simultaneous formation of a weakened tear line in the region of the heat-sealed seam comprises a heatsealing jaw 1 provided with an insulating layer 2 over which an impulse heating strip 3 is stretched, an unheated backing jaw 5 carrying a resilient abutment layer 6, e.g. of silicone rubber, and a thin bead element 8 having a portion which protrudes from the engaging surface of one of the jaws, this portion being formed with closely-spaced interruptions and the bead element 8 being connected to the jaw at least in the region of these interruptions. In one embodiment, Fig. 1, the jaws 1, 5 are covered by tapes 4, 7 of "non-stick" material, e.g. polytetrafluoroethylene, which are each wound on two rolls one on each side of the jaws so that the tape is adjustable for wear. The bead element is formed by one of a number of parallel running stitchlines 8 in the tape 7 and is positioned so that the weakened tear line is formed along approximately the centre line of the seam. The stitchlines 8 may be formed as single or double stitchlines and may consist of a ply yarn or a fine wire, e.g. of nickel-chromium steel or silver. In a modification, Figs. 7-9 (all not shown), a triangular cross-section wire (14) is embedded in the tape 7 and its sharp protruding edge is formed with closely spaced notches (15). In another embodiment, Fig. 2, the tape 7 is omitted and the jaw 5 is provided with a polytetrafluoroethylene strip 10 slidably inserted in grooves 9 over the layer 6.
Patent GB-992201-A (GB)
Title: Method for the extraction of sulphated polysaccharides
IPC: C08B37/10
Filed: 1963-12-09
Abstract: A material containing a sulphated polysaccharide in an aqueous medium at pH 4 to 10 is treated with a cross-linked copolymer of a mixture of 96-99.9 mole per cent of an aromatic monovinyl hydrocarbon and 4-0.1 mole per cent of an aromatic divinyl hydrocarbon, said copolymer bearing on the aromatic nuclei substituent groups of formula <FORM:0992201/C3/1> where R1, R2 and R3 are hydrocarbon groups, n is 1 to 4 and Y is an anion, said aqueous medium containing a water-soluble alkali metal, alkaline earth metal or ammonium salt of an acid, in such an amount that at least 50% of the sulphated polysaccharide is bound to the copolymer, and the copolymer bearing the bound sulphated polysaccharide is then separated from the aqueous medium.  Specified sulphated polysaccharides are heparin, chitin sulphate, xylon sulphate, chondroitin sulphate and hyaluronic acid sulphate.  Preferred copolymers are styrene-divinylbenzene copolymers bearing methylene trimethyl ammonium chloride groups and methylene dimethyl hydroxyethyl ammonium chloride groups, e.g. certain "Dowex" (Registered Trade Mark) quaternary ammonium anion exchange resins. In the extraction of e.g. heparin from hog liver, by treating the lever with aqueous salt solution, the homogenized aqueous extract is, after adjustment of salt content and pH if necessary, stirred with, or passed down a column of, anion exchange resin. After washing the resin, the heparin adsorbed thereon may be removed by elution with an aqueous solution of an alkali metal or ammonium salt of a mineral acid at a concentration of at least 1.9 molar. Alternatively the resin may be eluted with aqueous salt solutions of successively increasing molar concentrations up to at least 1.9 molar.  The eluted polysaccharide may be precipitated from aqueous salt solution by addition of an organic solvent, e.g. methanol, ethanol or acetone. The resin may be regenerated by washing with an aqueous or salt solution of concentration at least 3 molar. Heparin may also be stored adsorbed on the resin, i.e. as a quaternary ammonium heparin salt of the above cross-linked copolymers. Specification 654,706 is referred to.
Patent GB-1452385-A (GB)
Title: Synchro-mesh gear assemblies
IPC: F16D23/06
Filed: 1974-11-11
Abstract: 1452385 Positive clutches IFA GETRIEBEWERKE BRAWDENBURG VEB 11 Nov 1974 [12 Nov 1973] 48727/74 Heading F2C In a friction synchronised positive double clutch for a change speed gear wherein initial axial movement of an internally toothed sleeve 8 engageable with clutch teeth 11, 12 fast with gears 2, 3 moves a synchronising ring 15 or 16 into engagement with a friction surface 13 or 14 fast with the gear 2 or 3 and friction drag rotates the ring 15 or 16 relative to the sleeve 8 to cause interengagement between baulk surfaces 23, 25 on the ring 15 or 16 and sleeve 8 to prevent further axial movement of the sleeve 8 until synchronism is attained, each synchronising ring 15, 16 has axial projections 19 which engage recesses in a hub 6 on which the sleeve 8 slides axially and the sleeve 8 has radially inward projections 24 the end faces 26 of which engage the ends of the teeth 11, 12 to limit axial movement of the sleeve 8. The baulk surfaces 25 on the sleeve 8 are formed by grooves cut in the projections 24.
Patent GB-1532625-A (GB)
Title: Cupboards and the like fixtures
IPC: A47B95/00
Filed: 1976-01-26
Abstract: 1532625 Cabinets ALFA FURNITURE Ltd 26 Jan 1976 [11 Nov 1974] 48773/74 Heading A4B A cupboard 1 or like unit is secured to a wall and includes a top, front part 4 to which is secured an overlapping panel 3 for covering the gap between the ceiling C and the top of the cupboard 1, the panel 3 being mounted for vertical displacement so that it may be raised to a position in which it engages the ceiling and is releasably secured in this position. The panel 3 includes a pair of vertically extending slots 7 of T-shaped cross-section, each slot 7 slidably receiving the head 6 of a bolt 5 passing through an associated aperture in the top part 4. The bolt 5 carries a wing nut 9 which is tightened to clamp the panel 3 in its operative position. The upper edge of the panel 3 carries a resilient strip 8.