baber/WOPTO huggingface dataset:
Patent GB-967234-A (GB)
Title: Apparatus and method for culturing microorganisms
IPC: C12M1/12
Filed: 1963-05-17
Abstract: <PICT:0967234/C6-C7/1> <PICT:0967234/C6-C7/2> <PICT:0967234/C6-C7/3> Culturing apparatus for micro-organisms comprises a casing impermeable to culture medium and to the micro-organisms to be cultured, which casing is divided by internal partitions into separate culturing compartments and each partition has interstices or pores through it of a size to permit the micro-organisms being cultured to grow and diffuse from one compartment to the next in succession. The casing 10 and compartments 22 may be formed by folding over a flexible sheet of thermoplastic material and heat sealing together the sides 14 and top 16 of the sheet, and making compartment-forming partitions 20.  For the cultivation of gas-forming bacteria, yeast or moulds, the compartments may intercommunicate at their upper ends above the culture medium, Fig. 4 (not shown), the gas produced being vented through a valve. The interstices or pores are formed by a wick 24 extending through each compartment 22; the wick pore size should not be so great as to permit the free flow of culture medium or of the metabolic products. The speed of transfer of the micro-organism culture from compartment to compartment may be decreased by using a wick of smaller pores or of smaller cross-sectional area, or by adding agar or gelatin to the culture medium.  The casings may be suspended from their grommets 18. An elongated casing containing, for example, 365 compartments of equal volume may be wound into a roll and packed in a casette during storage, transport and use, Figs. 5 and 6 (not shown).  Thermoplastic materials mentioned: polyethylene, polyvinyl chloride and their copolymers, polypropylene, tetrafluoroethylene and trifluoro chloroethylene, as exemplified by sheets of polyethylene and polypropylene 0.002 inch thick which will transmit oxygen and are therefore suitable for use with aerobic micro-organisms, and sheets of 0.006 inch thickness or laminated thinner sheets for anaerobic micro-organisms; where aerobic micro-organisms are to be cultured, either the entire casing or only one face thereof may be made of plastic material which transmits oxygen.  The wick may be of commercial cotton twill tape 0.25 inch by 0.007 inch (preferred), filter paper or cloth, wet strength paper towelling, fibre glass tape, cotton ribbon, and cotton twill or cross grain ribbon. Ingredients for the culture medium include peptones, sugars (specified), sodium chloride, potassium hydrogen phosphate, gelatin, agaragar, serum, blood, specified proprietary preparations and brom cresol purple indicator.  After the casing has been made and the culture medium inserted into the compartments, the assembly is sterilized, e.g. by autoclaving at 121  DEG C. for 20 minutes, radiation or immersion in an atmosphere of ethylene oxide. Examples are directed to the culturing of Clostridium welchii and Lactobacillus acidophilus.
Patent GB-1079182-A (GB)
Title: Improvements relating to textile treating rollers for use on carding machines
Inventor: NUTTER WALTER
IPC: D01G15/80
Filed: 1965-03-15
Abstract: 1,079,182. Carding engines. T. M. M. (RESEARCH) Ltd. May 17, 1966 [March 15, 1965], No. 10874/65. Heading D1N. Burr crushing rollers 14, 15 associated with the stripper roller (13) Fig. 1, not shown, of a carding device are cleared by doctor blades 16, 17 and each roller is provided with a preferably helical groove 21, 22 so that any fibre caught between a blade and roller is severed between the blade and the trailing edge of the groove. The blades 16, 17 are pivoted on pins 18, 19 and urged towards their rollers by a spring 20. Pneumatic means are provided to clear fibres from each blade. The grooves on rollers 14, 15 preferably do not extend to the ends thereof. A variety of possible cross-sections for the grooves is illustrated in Figs. 4a, 4b, 4c not shown.
Patent GB-593291-A (GB)
Title: Improvements in or relating to metal hose clips
IPC: F16L33/08
Filed: 1945-08-02
Abstract: 593,291. Clamping-rings. MILLERET, P. E., and HUNT & TURNER, Ltd. Aug. 2, 1945, No. 19876. Addition to 593,258. [Class 44] In a metal hose clip having a cylindrical housing 3 to which one end 2 of a band is secured, the other end 4 having serrations 5 for engagement by a worm or screw 9, which is so mounted in its housing that when turned to expand the band it moves axially until disengaged from the serrations, the worm 9 has a bore of non-circular and preferably square cross-section engaged by a pivot 12 of the same cross-section, preventing relative rotation but allowing the worm to move axially. At the end the pivot 12 has .an operating head 10 which bears against one end of the housing 3 ; at the other end it has a cylindrical extension 13 engaging rotatably in the bore of a washer 8 which is secured, e.g. by chucking, to the other end of the housing. This cylindrical part may be secured by upsetting its extreme end. When considerable expansion of the band is required, the head 10 is turned counter-clockwise, the serrations 5 acting as a nut member, until as a result of simultaneous axial and rotary movement the worm is disengaged from the serrations, and the end 4 of the band can then be drawn through its casing.
Patent GB-846754-A (GB)
Title: Improvements in or relating to heat exchangers
Inventor: LONG EVERETT
IPC: F28D1/02
Filed: 1957-06-24
Abstract: 846,754. Heating and cooling liquids in bulk. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. June 24, 1958 [June 24, 1957], No. 19902/57. Class 64(3) A liquid container 2 is divided into upper and lower compartments 6, 7 by a partition 5 in which is arranged a tubular member 8 constituting a passage interconnecting the two compartments and containing a heat exchanger comprising a nest of tubes 11 through which a first liquid passes in flowing from one compartment to the other, the tubes 11 and a surrounding shell 12 all extending between two tube plates 13, 14, a second liquid being caused to flow around the heat exchanger tubes in a direction countercurrent to the first liquid. In the form shown the second liquid flows downwardly through a tube 15 to enter the heat exchanger at a point adjacent the lower tube plate 14 whereafter it flows upwardly over the tubes 11 and through tubes 16 to a header 34 having an outlet duct 35. Closed end elements 43 shaped as shown and disposed in alignment with the tubes 16 are said to minimize streaming of the liquid entering these tubes. In an alternative arrangement the open lower end of the tube 15 may be located in the tube plate 13 and the tubes 16 extended to open in the region of the tube plate 14. In this arrangement the duct 35 is the inlet for the second fluid and the tube 15 becomes an outlet tube; a member similar to members 43 would then be provided immediately below the open end of the tube 15. The invention s particularly applied in anuclear reactor heat transfer system, the first liquid then comprising primary active sodium and the second liquid comprising secondary inactive sodium. The tank compartment 6 normally contains the primary active sodium at the level 50 so that the heat exchanger is wholly submerged. The compartment 7 contains cooled primary active liquid sodium which has been caused by pumps (not shown) located in compartment 7 to flow from compartment 6 and through the heat exchanger as indicated by arrows 51, 52, 56, 57 to compartment 7. The heat exchanger hangs from the pipes 15, 16 and hence is free to move axially within the pipe 8 to allow for heat expansion. It may when required be removed together with the cover plate 31 at the upper end of the tube 8.
Patent GB-796733-A (GB)
Title: Improvements in or relating to alloy steels
Inventor: HARRIS GEOFFREY THOMAS
IPC: C22C38/52
Filed: 1955-07-09
Abstract: Non-austentic alloy steels which are hardenable and have a good creep strength lie within the following range expressed in per cent by weight: C 0.05-0.3, Cr 9.0-20.0, W and/or Mo 1.5-10.0, Nb and/or Ta 0-2.0, V 0.1-2.0, N 0.001-0.04, B 0-0.5, Co 1.0-15.0, Ni 0.5-5.0, Fe, with impurities and deoxidizers the balance.  Mn in the range 0.1-1.0 and/or Si in the range 0.1-1.0 may be added as deoxidizers.  Cu in the range 0.5-5.0 may be added instead of or in addition to Ni.  The alloys may be hardened by heating in the temperature range 1100 DEG C.-1250 DEG C. and quenching or air cooling, and may be tempered in the range 500 DEG C.-700 DEG C.  The Provisional Specifications describe also alloys which may contain Ti up to 2.0, and in which V is an optional constituent up to 2.0, N being in the range 0.001-0.2. Specifications 638,110, 658,115, 730,272 and 733,146 are referred to.
Patent GB-467135-A (GB)
Title: Improvements in safety razors
IPC: B26B21/24
Filed: 1936-07-17
Abstract: 467,135. Safety razors. BENJAMIN, S. H. July 17, 1936, No. 19928. [Class 30] [Also in Group XVII] In razors of the type having a hollow handle adapted to store the razor head and a magazine of spare blades, the magazine 40 is formed with a hole 39 by means of which it may be mounted on the head 24, 25, when detached, the clamping stud 36 passing through the hole. The blades are similarly perforated. The end cap 24 and guard are shaped as shown in Fig. 11. A resilient tongue 45 is provided in the form of magazine shown in Fig. 12. The guard is formed with substantially rectangular bosses 29, 30, Fig. 8, for locating the blade which has corresponding apertures.
Patent GB-1385385-A (GB)
Title: Tensioning arrangement for drive belts and washing machines  incorporating such arrangements
IPC: F16H7/14
Filed: 1972-04-28
Abstract: 1385385 Belt gearing SIEMENS AG 28 April 1972 [29 April 1971] 19953/72 Heading F2Q In an arrangement for tensioning a drive belt which passes over a pulley 23, the pulley is mounted for rotation on a shaft from a motor 15 mounted on trunnions 17 for pivotal movement about an axis spaced from the pulley, and perpendicular to and coincident with the axis of rotation thereof, and a spring 19 is connected between a point 21 on the motor, spaced from its pivotal axis, and a fixed anchorage 20 as shown. The effect of the arrangement is that on movement of the pulley 23 from the position shown in full lines to that shown in broken lines the tension applied to the belt is maintained constant or decreased, this movement being due to variation in the pulley diameter. The invention may be applied to a washing machine, wherein pulley diameter variation is used to vary the speed of a drum between washing and spinning.
Patent GB-228460-A (GB)
Title: Improvements in or relating to toothbrushes
IPC: A46B15/00
Filed: 1924-08-23
Abstract: 228,460. Munro, H. Aug. 23, 1924. Teeth - cleaning appliances. - The extremity of the handle of a toothbrush is formed as a blunt conical point 1 which projects as shown. The point may be fitted with a conical sheath of flexible material such as rubber, the projecting end of the sheath being closed or open. The point, with or without the sheath, is rubbed along the teeth to remove foreign matter.
Patent GB-1067068-A (GB)
Title: Method of polymerizing fluoroolefins in aqueous medium
IPC: C08F14/18
Filed: 1964-05-13
Abstract: Fluoro-olefines are polymerized in aqueous media by a method which subjects the reaction system to ionizing radiation in the presence of 0.001 to 10% of an anionic surface-active agent having a water-solubility of at least 0.001 weight per cent at 100 DEG  C. and containing a polyfluoroalkyl group of 4 to 13 carbon atoms, at least half of the atoms bonded to said carbon atoms being fluorine atoms and the remainder being hydrogen or chlorine atoms at 0 DEG  to 100 DEG  C. under a pressure of 1 to 100 kg./cm.2. Specified fluoro-olefines are vinyl fluoride, vinylidene fluoride, trifluoroethylene, tetrafluoroethylene, hexafluoropropene, octafluorocyclobutene, trifluorochloroethylene, and mixtures, e.g. of tetrafluoroethylene and hexafluoropropene.  Specified surface-active agents are water-soluble salts of polyfluoroaliphatic carboxylic and sulphonic acids, sulphates and phosphates of polyfluoroaliphatic alcohols, and polyfluoropolychlorocarboxylic acids.  These may be used with conventional surface-active agents, e.g. water-soluble salts of sulphates and phosphates of aliphatic alcohols and of aliphatic and aromatic sulphonic acids. Polymerization may be effected batchwise or continuously, and in the presence of aliphatic hydrocarbons liquid at the polymerization temperature, e.g. butane, heptane, hexane, cyclohexane, dodecane, hexadecane and paraffin wax; and stabilizers, e.g. hydrocarbons having more than 12 carbon atoms, trifluorotrichloroethane and tetrafluorodichloroethane. Irradiation may be effected in the initial stages of the polymerization or throughout.  In examples ammonium perfluoro-octanoate is used as surface-active agent in the polymerization of (1) tetrafluoroethylene; and tetrafluoroethylene in the presence of (2, 3, 5 and 6) hexadecane, (7) dodecane and trifluorotrichloroethane, and (9) n-cetane; and the copolymerization of tetrafluoroethylene and hexafluoropropylene in the presence of (8) hexadecane. The fluoro-olefines may be copolymerized, e.g. with vinyl chloride or perfluorovinyl ethers.
Patent GB-726288-A (GB)
Title: Improvements relating to carburetters for internal combustion engines
IPC: F02M19/12
Filed: 1953-07-20
Abstract: 726,288. Spray carburetters. GENERAL MOTORS CORPORATION. July 20, 1953 [Aug. 8, 1952], No. 19998/53. Addition to 705,851. Class 7 (3). Final closing movement of the throttle valve 4 is retarded by an air dash pot 16. During opening movement of the throttle valve air passes from the right hand side to the left hand side of a diaphragm 18 through ports 29 (best seen in Fig. 5) and through a series of openings 32 in the diaphragm. During closing movement when an arm 10 on the throttle valve spindle engages the head of a screw 11 and the diaphragm is moved to the left the air has to pass through a restricted orifice 30 and the last part of the throttle movement takes place slowly. The diaphragm is bonded to an annular surface on a metal disc 24.
Patent GB-295821-A (GB)
Title: An improved die for moulding lids or covers of teapots or the like
IPC: B28B7/20
Filed: 1927-07-28
Abstract: 295,821. Coulter, W., and Bennett, P. July 28, 1927. Moulding hollowware; pressing-dies. -Lids or covers for teapots &c. of the kind having the knob sunk in a recess are moulded by means of a domed die adapted to form the recess and associated displaceable die sections adapted to form the knob. As shown, a die block c arranged within a mould a carries a domed member e apertured for the passage of the knob and a pair of die sections f furnished with knob-forming recesses f<1>. The sections fare pivoted on a spindle d<3> and are furnished with tails f<2> adapted to contact with blocks b<1> to close the sections together when the block c is lowered, and with curved faces f<3> adapted to engage noses a<2> of adjustable screwed members a<1> to open the sections as the block e is raised for delivery. A top die g is formed with a flange-forming groave g<3> and recesses g<2>, g<5>, and is furnished with a central ejector h which may be forced down by a rod h<1> or by a spring. In use the block c is lowered and the mould charged' with powdered clay &c. After pressing, the top die g is raised and the lid ejected by raising the shank d of the block c by a treadle; during this movement, the sections f separate, as shown, leaving the article free for removal. A stationary rod b<2>, passing through an aperture in the block e and a hole g<1> in the die g, forms the vent in the lid.
Patent GB-636249-A (GB)
Title: Improvements in asymmetrically conducting electrical devices
IPC: H01L29/00
Filed: 1946-07-04
Abstract: 636,249. Detectors : generating high-trequency oscillations. PURDUE RESEARCH FOUNDATION. July 4, 1946, No. 20030. Convention date, Jan. 23. [Class 40 (v)] Crystal detectors are made of germanium having minute quantities of impurities such that the detectors exhibit with increasing current in the high-resistance direction a peak back voltage of 5-40 volts, followed by a negative resistance characteristic (Fig. 2). This may be used for generating H.F. oscillations (Fig. 3, not shown). The peak back voltage decreases less than 50 per cent for temperature increase from 23‹ C. to 75‹ C. The germanium may be prepared from its dioxide reduced in a crucible by carbon and may be etched with hot H2O2. The whisker may be of Pt, Ta, Ni, Fe, Zn, Mo, W, Au, Cu, Ag, Zr, Pb, Pt-Ir or Pt-Ru. Specification 636,248 is referred to.
Patent GB-397652-A (GB)
Title: Improvements in mattress tufting frames
IPC: B68G15/00
Filed: 1932-07-15
Abstract: 397,652. Tufting mattresses. DROLL, J. W. and OLSON, A. H., 341, East Ohio Street, Chicago, U.S.A. July 15, 1932, No. 20053. [Class 52 (iv).] A machine for supporting a mattress 14 during hand-tufting comprises frames 15, 16 for compressing the mattress, compressor-bars 28 adjustable on the frames to ensure equal spacing of the rows of tufts, and holes or slots 39 in the compressor-bars to locate the penetration points for the tufts. In the machine shown, the frames are movable to compress and release the mattress by four screws 19 connected by chain gear for simultaneous operation either by hand or by a motor 40. Belt driving means, under the control of hand-levers, or of tappets operated by the moving frames, is provided to start, stop and reverse the motion of the screws. The mattress support is mounted to turn in bearings 11 on the base 10 so that tufting can be carried out with the frames in a vertical position. The compressorbars, which slide transversely in the frames, are connected by lazy-tong links 33 for equal spacing adjustments, locking being effected by bolts 36. The slots in the bars are enlarged at positions R, D which permit of arranging the penetration points to suit a.rectangular or diamond-shaped disposition of the tufts.
Patent GB-1461146-A (GB)
Title: Method for the preparation of -semi-insulating- cadmium telluride
IPC: H01L31/18
Filed: 1974-05-07
Abstract: 1461146 Cadmium telluride AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 7 May 1974 [11 May 1973] 20056/74 Heading C1A A semi-insulating single crystal of cadmium telluride is prepared by a method in which the concentration of impurities is minimized and the proportion of dislocations, twinning and other crystal defects is reduced by carrying out the preparation in several steps, namely (a) synthesis from high purity (99À99%) cadmium and tellurium in stoichiometric proportions accompanied by crystallization at the melting point of the stoichiometric mixture, (b) purification of the cadmium telluride ingot thus obtained by not less than ten vertical zone-melting passes and (c) monocrystallization in tellurium as solvent at 452-900‹ C.
Patent GB-1183851-A (GB)
Title: Electrolytic Cells with a Mercury Electrode.
IPC: C25B9/02
Filed: 1967-05-01
Abstract: 1,183,851. Mercury cathode electrolytic cells. SINCAT SOC. INDUSTRIALE CATANESE S.p.A. May 1, 1967 [May 4, 1966], No.20102/67. Heading C7B. [Also in Division G3] A device for the automatic adjustment of the gap between the anode and cathode of an electrolytic cell having a mercury cathode 2 comprises a number of frames 7 each supporting one or more anodes 4 and each constrained so as to move up or down a pair of threaded supports 12, 13; a nut 14 or 15 screwed on each threaded support the frame 7 resting on these nuts; means such as sprockets 17, 18 and a chain 9 for rotating together each pair of nuts 14, 15 so that each nut moves up or down the support by the same amount; and drive means including a speed reducer 21 coupled to a sprocket 16 on the nut 14 by a chain 25 for controlling this rotation in dependence upon the voltage differential between the anode or anodes supported by that frame and the cathode, the drive means being brought into operation when the voltage differential exceeds the limits of a preselected range. As shown the supports 12, 13 are fixed to the cell casing and the nuts move on the supports, but in a modification the nuts are fixed on the supports which are rotatable within threaded bushes fixed to the cell walls. The voltage sensing arrangement producing the control signal for the drive means may include photo-sensitive resistors cooperating with lamps associated with the movement of a galvanometer responsive to the sensed voltage, and a suitable circuit is described with reference to Fig. 3 (not shown); circuits employing transistor relays and magnetic or electro-pneumatic devices may also be used. Limit switches may be provided on the drive means, together with means for effecting manual control if necessary.
Patent GB-1127130-A (GB)
Title: Continuous flow electrophoresis apparatus
IPC: G01N27/447
Filed: 1966-05-06
Abstract: 1,127,130. Electro-phoretic separation of substances. BECKMAN INSTRUMENTS Inc. May 6, 1966 [Aug.23, 1965], No.20106/66. Heading C7B. In an apparatus for the electro-phoretic separation of substances comprising an electrophoresis working space formed between parallel, insulating plates, means for introducing electrolyte into said working space and removing it from such that a lamilar flow sheet of electrolyte is formed therein, and means for producing an electric potential gradient across said space, adjustable means are provided for injecting a sample to be electro-phoretically separated into the electrolyte stream at any selected position across the electrolyte and means for removing at least one sample component downstream from the injection point, the component removed depending upon the position of injection of the sample. In the embodiment shown the upper part of the working space is of an inverted Y-shape, 108, the electrolyte inlet 114 being positioned in the upper part thereof, electrolyte flowing from thence downwards, and the sample material is injected via an L-shaped inlet (136) Fig.3 (not shown), one branch thereof rotatably extending through one of the plates 102 forming the cell and the second branch 136a at right angles thereto lying between the plates forming the working space such that rotation of the branch 136 permits the tip 136b of the branch 136ato be swivelled to any point across the working space. The lower part of the cell may be V-shaped as shown with electrolyte outlet 118 and stationary sample component withdrawal means 144 and 146, or may be Y-shaped, i.e. similar to the upper part of the cell but inverted, and having one or more movable sample outlets 152; 154, 156, 158 Figs. 4 and 5 respectively, (not shown), these outlets being similar in construction to the sample inlet 136. Electrodes 128 may be provided in electrolyte chambers 126 positioned adjacent the sides of the working space (106) but separated therefrom by ion-permeable barriers 130.
Patent GB-121291-A (GB)
Title: A Process and Apparatus for the Emulsifying of Liquids and other Substances.
Inventor: TARENTO CHRISTOFFERSEN
IPC: B01F5/00
Filed: 1918-12-04
Abstract: 121,291. Christoffersen, T. Sept. 28, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Emulsions, making.-Liguids &c. to be emulsified are fed to the narrow space, between two conical surfaces rotating relatively to one another so that they pass in the direction of increasing diameter of the surfaces. Surfaces of solids of revolution other than cones may be employed. In the apparatus shown, a cone 3 mounted on a spindle 4 is rotated within a conical casing 1 formed with cooling-jackets 37 and supported on a frame 2. Liquids enter at 5, are preliminarily mixed by blades 7, and pass downwardly between the conical surfaces to a stirring- chamber 8 and outlet 11. The cone 3 is secured to the shaft 4 by upper and lower cones 13, 12. The shaft rotates in upper and lower neck bearings 15, 16 and a thrust bearing 20. The upper and lower plates 26, 21 of the thrust bearing are held in place by conical shoulders on adjustable sleeves 23, 22. The sleeve 23 is prevented from rotating, but may be moved axially by a nut 27 geared to a band-wheel 34 so that the clearance between the emulsifying-surfaces may be adjusted. Grooves extending along axial planes may be formed in either or both of the emulsifying surfaces. The clearance between the surfaces may be greater towards their apexes than at the base.