baber/WOPTO huggingface dataset:
Patent GB-1224174-A (GB)
Title: Improvements in or relating to the production of fibrous material from micro-organism cells
Inventor: GIDDEY CLAUDE ROBERT
IPC: C12P21/00
Filed: 1967-06-06
Abstract: 1,224,174. Extracting protein. BRITISH PETROLEUM CO. Ltd. 2 May, 1968 [6 June, 1967], No. 26095/67. Heading C3H. [Also in Division C6] Cells of micro-organisms are extracted with a solvent which consists of or contains formic acid, the extraction being carried out under conditions such that all, or a substantial proportion, of the protein and carbohydrate content of the cells passes into the extract phase, thereafter, any solid phase still present is separated from the extract phase and (whether or not a solid phase has been separated) the extract phase is mixed with an aqueous phase whereby a fibrous material is precipitated and recovered. The micro-organism cells are typically obtained by the aerobic culture of specified normal paraffin-consuming yeasts, moulds or bacteria on a hydrocarbon substrate. Under preferred conditions of operation: the micro-organism is in a dry state when subjected to the extraction, formic acid is employed in the anhydrous state or in aqueous dilution containing at least 80% of formic acid, and the extraction is carried out at a temperature of at least 60‹ C. with a contact time of at least 2 hours. The extract phase is mixed with aqueous caustic soda solution or sodium citrate buffer to give a pH in the range 3À5 to 4À2, the resulting solid fibrous phase is dried in an oven, and the remaining aqueous phase is spray dried as such, or the proteins are precipitated and a fraction containing the proteins is mixed with the fibrous material, with or without treatment to achieve bonding. According to an example, 100 g. of dry Candida yeast was stirred with 1 kg. of 85% aqueous formic acid at a temperature of 90‹ C. for 5 hours, and at the end of this period the solution thereby obtained was added to three times its volume of cold water. The mass of solid fibrous material which formed in the aqueous medium was removed by filtration on a 0À5 mm. mesh nylon screen using reduced pressure. The filtered material was dried in a vacuum oven at 45‹ C., whereby there was obtained 25 g. of a fibrous material having a nitrogen content of 2À7% by weight. The filtrate contained in solution 75 g. of solid material having a nitrogen content of 11%. In a further example, the solution in formic acid was added to N/5 aqueous caustic soda instead of to cold water.
Patent GB-261098-A (GB)
IPC: B66F7/24
Abstract: 261,098. Cross, H. P. Aug. 13, 1925. Hand-trucks.-Blocks 1 support parts 2 and inclined parts 3 of track and are connected by sliding boards 5. The parts 2 may be slidably mounted on one pair of blocks. Normally, the parts 2, 3 are detachably secured to the blocks by vertical pins. The blocks may support frames 13, Fig. 6, having lifting devices 15, 17 for an axle and a cross-bearer respectively, the crossbearer also being provided with screw jacks for supporting the car frame. The blocks may rest on connected half-frames carried by castors 22. Screw jacks may also be mounted on the boards 5. Brackets 26 for a platform may be provided. Specification 261,674, [Class 79 (iii), Motor vehicles, Arrangement &c. of parts of], is referred to.
Patent GB-836030-A (GB)
Title: Improvements in or relating to a turbine blade and rotor assembly
IPC: F01D5/28
Filed: 1956-08-27
Abstract: 836,030. Mounting turbine rotor blades. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Aug. 27, 1956 [Oct. 31, 1955], No. 26137/56. Class 110 (3). [Also in Group XXV] In a bladed turbine rotor assembly in which a blade formed of brittle material such as ceramic is mounted in a metallic turbine rotor, a multi-layer shim is disposed between the bearing-surfaces of the rotor and blade root, the shim having one layer which is adapted to deform plastically under the action of centrifugal force when the rotor is first set in operation so as to conform with irregularities on the bearing- surface of the blade root, and at least one other layer which is adapted to deform elastically. In Fig. 2, the irregular surface of the unmachined blade root is shown at 1 and the machined surface of the rotor blade-mounting slot is shown at 2, a multi-layer shim 3 being disposed therebetween. The shim comprises a layer 5 of soft metal, such as a copper or aluminium alloy, which is partly covered by a steel jacket 4 disposed between the layer 5 and the blade root surface, and a layer 6 of, for example, chromiumnickel steel which lies against and is secured to the layer 5 by welding or brazing. The layer 5 is deformable plastically and completely fills the jacket 4 as a result of plastic deformation while the layer 6 is deformable elastically. In Fig. 3 the surface 2<1> of the rotor blade-mounting slot is also unmachined and the elastic layer 6<1> is partly covered by a steel strip 7 which has secured on its outer surface, a layer 8 of soft metal such as copper which deforms under operating conditions so as to conform with the irregular surface of the rotor blade-mounting slot. In this embodiment sliding can take place between the steel layer 6<1> and the steel strip 7. The layer 5 is deformable plastically as in Fig. 2 so as to conform to the irregularities on the surface 1 of the blade root. In Fig. 4 the shim 3<11> is formed by enclosing a brass mesh 11 within a steel envelope 10, the brass mesh constituting the plastic layer which is deformed under operating conditions so as to conform with irregularities on the surface 1 of the blade root. The thickness of the walls of the steel jackets 4 and 11 which bear against the blade root surfaces may be reduced either by grinding or by metal erosion. The two shims 3, 3<1> disposed one at either side of a blade root are connected by a steel strip bent to U-shape, a loop formed at the bottom of the U engaging a recess in the rotor. The shim shown in Fig. 4 may be bent to a U-shape so as to extend on both sides of the blade root.
Patent GB-1343069-A (GB)
Title: Apparatus for liquid treatment of textile materials of string form
IPC: D06B3/28
Filed: 1971-04-19
Abstract: 1343069 Liquid treatment apparatus VALD HENRIKSEN AS 19 April 1971 [17 April 1970] 26171/71 Heading D1L An endless length of material 14 is treated with liquid whilst circulating in a closed circuit container 1. The container 1 comprises a wider channel, with a constant radius of curvature, and a narrower channel 5. There is also provided a by-pass channel 10 and pump 9 by means of which treatment liquid is bled from the wider channel and -introduced into the narrower through a jet nozzle 4. This reintroduced liquid produces a flow sufficient to move the material around in the container. Some of the liquid flow passes through the perforated part 8 of narrower channel 5 into chamber 6 which it leaves by throttle valve 7 to pass into the wider channel in a direction counter to the main liquid flow. This slows down the main liquid and prevents the material piling up against partition 3. As seen, the material is pleated in the wider channel but straightens in the narrower.
Patent GB-514598-A (GB)
Title: Improvements in rubber compounds and methods of making them
IPC: C08C19/00
Filed: 1938-01-21
Abstract: 514,598. Indiarubber compositions. STEIN, J. Jan. 21, 1938, No. 26175/39. Divided out of 513,939. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 22, 1938.] [Class 70] Indiarubber compositions which have an antiseptic or therapeutic action in contact with body emissions are prepared by reacting upon rubber with an acid-reacting substance and afterwards with a basic antiseptic, or first with a basic substance and then with an acid antiseptic. The acid-reacting substances may be chlorsulphonic acid, sulphuryl chloride, thionyl chloride, or chlorsulphenyl benzene sulphonic acid, chlorosulphonyl benzoicacid, phosphorus oxychloride or maleic anhydride, and the basic antiseptic may be quinolines or homologues, oxyquinolines and halogen, sulphur or nitro derivatives of the quinolines, acridines, phosphines, organometallic compounds such as phenyl, tolyl or aniline mercuric hydroxide, phenyl mercuric acetate, or stannic, zinc, bismuth or lead hydroxides. The basic-reacting substances may be those having a stable amino group, e.g., chlorsulphonyl acetanilide; and may be formed in situ, e.g., by reducing nitrobenzene sulphonyl chloride to the amino body, and the basic bodies are reacted with an acid antiseptic such as salicylic acid. The rubber composition may be used for making bandages, tampons, tiles, toilet seats, bath mats, telephone mouthpieces &c.
Patent GB-919614-A (GB)
Title: Sleeve bearing
IPC: F16C33/20
Filed: 1959-07-30
Abstract: A split bearing-liner 10 for a housing 24 comprises a thin flexible outer backing member 14 having a thin flexible inner member 12 attached thereto.  The inner member has a bearing surface of wear-resistant synthetic plastic and is secured to the member 14 by adhesive bonding or by mechanical means such as pressing, stitching and crimping.  When pressing is employed, a woven layer of fabric 12b, Fig. 5, formed of fibrous fluorocarbon is forced against a sheet of relatively soft metal 14b so that the metal is indented by the fabric, alternatively the metal may be perforated as at 16 or may be an open mesh wire screen. Non-fibrous fluorocarbon resin 12c may be sprayed on to the screen or perforated metal sheet 14c, Fig. 6.  The fluorocarbon layer 12d, Fig. 7, may be stiched to the sheet 14d by means of a thread 18, or the fluorocarbon fabric 12e, Figs. 8 and 9, <PICT:0919614/III/1> <PICT:0919614/III/2> <PICT:0919614/III/3> <PICT:0919614/III/4> <PICT:0919614/III/5> <PICT:0919614/III/6> <PICT:0919614/III/7> may be crimped to the member 14e, by edges 20 and thongs 22 thereon passed through the fabric 12e.  The laminated sheet is pressed to the required thickness and then bent to a cylindrical form, Figs. 1 and 3, lips 26 and 28 being provided to prevent axial movement of the liner within the housing.  A helical gap 30 serves as a lubricant reservoir or a collecting chamber for grit &c. and allows expansion and contraction to facilitate assembly &c.
Patent GB-429016-A (GB)
Title: Improvements in portable power driven screw drivers or other means for effecting a turning effort
IPC: B25B21/00
Filed: 1933-09-23
Abstract: 429,016. Screwing-up screws, nuts, &c. ARMSTRONG, WHITWORTH, & CO. (ENGINEERS), Ltd., SIR W. G., and REAVELY, T. C., Scotswood Works, Newcastle-on-Tyne. Sept. 23, 1933, No. 26307. [Class 83 (iii)] In a power-driven screw-driver, spanner, &c. of the kind in which the tool is driven through a frictional slipping clutch arranged so that the torque at which slip takes place is determined by the pressure on the tool, the drive is transmitted from the motor to the tool through a reduction gear whose function is separate from that of the friction clutch. The clutch may be normally engaged by a spring or normally kept open by the spring and closed by pressure on the tool. In one form a portable machine comprises a motor casing 1 and a gear casing 2. The motor shaft 3 carries a clutch part 4, the other part 5 being mounted on a spindle 6 carrying a sun pinion 12. A sleeve 9 carries a planet pinion 13 engaging the pinion 12 and a sun pinion 16 engaging a planet pinion 17 on the tool spindle 15. Internally toothed rings 2a, 2b fixed on the gear casing engage the planet pinions 13, 17. A square or otherwise shaped socket 15b in the tool spindle slidably receives a screw-driver 19 which abuts on a rod 11 slidable in the tool spindle and engages the clutch shaft 6 through a ball thrust bearing 10. A spring 18 normally maintains the clutch 4, 5 in engagement, but increased axial pressure on the screw-driver will increase the pressure between the clutch faces. A sleeve 20 loosely surrounds the tool spindle and centres the driver 19 with respect to the screw being driven. In a modified portable construction, the spring 18 is dispensed with and a spring is inserted in a recess in the clutch shaft 6, the other end of the spring engaging the end of the motor shaft 3 so as normally to maintain the clutch 4, 5 disengaged. For cooling the clutch, in the case of a pneumatic motor, the exhaust air from the motor passes through apertures 23a to a channel 1<a> leading to the clutch and thence to atmosphere by a port 1<b>, and in the case of an electric motor, a fan is mounted on the shaft 3 to supply air to the clutch and thence to atmosphere through the port 1<b>.
Patent GB-463317-A (GB)
Title: Improvements in or relating to the manufacture of derivatives of cellulose and other polymeric hydroxy compounds
IPC: C08B11/12
Filed: 1935-09-23
Abstract: Polymeric hydroxy compounds, particularly cellulose or its derivatives, are etherified by means of an agent containing an alkaline oxide radicle, or by means of an unsubstituted halohydrin or a halogenated fatty acid or salt thereof, in the presence of an inert liquid organic diluent which is miscible with water in a proportion of at least 20 per cent by weight.  Examples of suitable diluents are methyl acetate, methyl ethyl ketone, acetone, dioxane and methylene ethylene ether.  Suitable polymeric hydroxy compounds are wood pulps, regenerated cellulose, partially etherified and esterified celluloses, and cellulose derivatives containing free hydroxy groups in the substituent radicles.  Furthermore, fully esterified celluloses may be etherified in the presence of a base which splits off ester groups and at the same time acts as catalyst for the etherification.  The reaction is preferably effected so as to obtain oxy-alkyl cellulose ethers which are of low viscosity and are soluble in water or dilute alkali.  Thus the alkali cellulose may be ripened, and may be milled at raised temperatures, e.g. 40--50 DEG  C. for 9--15 hours or more.  The products may be worked up by extraction of the caustic soda, if desired, after first converting it to a salt, or by conversion of the caustic soda into a harmless substance.  For example, a crude ether to be employed as a size may be treated with acetic, oleic or boric acid and any solids, including precipitated sodium salts, filtered off.  An example is given of the purification by means of boric acid of an oxyethyl cellulose prepared in the presence of acetone as diluent. Another method for removing mineral matter is by electro-osmosis. An example is given also of the preparation of a cellulose-glycollic acid soluble in dilute ammonia, in the presence of acetone as diluent.
Patent GB-1207604-A (GB)
Title: Frequency scanning radar system with improved angular target detection
IPC: G01S13/28
Filed: 1968-06-04
Abstract: 1,207,604. Pulse radar. INTERNATIONAL STANDARD ELECTRIC CORP. 4 June, 1968 [6 June, 1967], No. 26459/68. Heading H4D. In a radar utilizing frequency scanning for direction finding each transmitted pulse is frequency-modulated (F.M.) and the centre frequency F is varied from pulse to pulse. The pulse-to-pulse frequency variation provides coarse direction and the F.M. affords fine direction correction. In the embodiment frequency F is programmed by unit 9 to give coarse elevation angle data; the fine correction is produced by limiter-discriminator 12; a pulse compression filter 8 is incorporated in the receiver I.F. section; the receiver I.F. is constant; a range-height indicator 18 is fed from detector 11; and azimuth scanning may be added by mechanical means or electronic means.
Patent GB-806670-A (GB)
Title: Improvements in or relating to plants for the aeration of liquids
IPC: C02F3/20
Filed: 1956-08-30
Abstract: 806,670. Aerating liquids. INDUSTRIKEMISKA A.B. Aug. 30, 1956 [Sept. 2, 1955], No. 26532/56. Classes 46 and 111. [Also in Group VI]. In a plant for aerating liquids, particularly liquid sewage, an aeration tube 1 includes a horizontal portion provided with perforations 4, and is connected at one end by a pipe 8 to an air feed line 3 and is provided at its other end with a downwardly extending portion 6 open at its lower end. The horizontal portion is disposed below the level of the liquid to be treated and the portion 6 extends to a depth where the hydrostatic pressure of the liquid exceeds the air pressure supplied to the tube. To flush the tube the feed line 3 may be supplied with water or the pipe 8 is disconnected from the air supply and supplied with water under pressure. Several such tubes 1 may be connected to the pipe 8 in which case the pipe has an open downwardly extending portion below the tubes the length of which is sufficient to prevent escape of the air.
Patent GB-1347412-A (GB)
Title: Process for producing low iron content nickel sulphide matte from sulphidic nickel concentrates
IPC: C22B23/02
Filed: 1971-04-19
Abstract: 1347412 Reducing nickel ores OUTOKUMPU O Y 19 April 1971 [10 April 1970] 26601/71 Addition to 1291911 Heading C7D In the flash smelting of Ni or Ni/Cu sulphidic concentrates in which the concentrates are passed down a reaction shaft together with slag forming ingredients and oxidizing gases into a sedimention zone where slag and matte accumulate, and gases are exhausted through a rising fire, the gases at the lower end of the shaft are made reducing, e.g. by injecting light petrol or sulphur, so that the iron content of the slag is mainly in bivalent form, and the nickel content of the dust in the shaft is reduced to metallic Ni or Ni sulphide. The feed to the top of the shaft may comprise a Ni concentrate, a Cu-Ni residue, and sand, with or without recirculated dust. The temperature at the lower end may be 1350-1450C, or higher, e.g. 1600C if less fuel is used and O 2  is also injected at this point.
Patent GB-833973-A (GB)
Title: Purification of the antibiotic ristocetin
Filed: 1958-08-19
Abstract: Ristocetin, ristocetin A and ristocetin B, are purified by adding an aromatic aldehyde to an aqueous solution of the said antibiotic in order to precipitate the compound of ristocetin with the aldehyde. The aqueous solution, which may be a clarified broth, is preferably adjusted to pH 7.0 to 8.1 and especially 7.5 to 8.1 by the addition of alkali such as sodium bicarbonate or sodium hydroxide prior to the addition of the aldehyde which is preferably salicyl-aldehyde or cinnamaldehyde.  The compound contains three aromatic aldehyde groups per mol. of ristocetin and in the case of the salicyl-aldehyde-ristocetin A is soluble in polyethylene glycol, propylene glycol, aqueous acetone, aqueous methanol, aqueous ethanol, pyridine and formamide and isoluble in amyl acetate, ethyl acetate, benzene and chloroform.  It is non-irritating to tissue in 50% aqueous methanol.  Ristocetin is recovered from the aldehyde compound by acidification, e.g. to pH 2.0 and (a) extracting the freed aromatic aldehyde with a solvent such as chloroform, or (b) precipitating the ristocetin salt, e.g. the sulphate by the addition of a non-solvent such as acetone. Specification 765,880 is referred to.
Patent GB-1532234-A (GB)
Title: Coal preparation plant
IPC: G05D9/04
Filed: 1975-06-25
Abstract: 1532234 Jigging and screening materials SIMONACCO Ltd 11 May 1976 [25 June 1975] 26897/75 Heading B2H [Also in Division G3] A float 24 in a coal washbox oscillates with pulsations of liquid within the box and operates an actuator at one rate as the mean level of the float rises and at a lower rate as the mean level of the float falls. A mixture of waste material and coal is fed through a chute 11 to a perforated deck 13 where the waste material settles whilst the coal floats near the surface and spills over a sill 17 into an outlet chute 12. Fine particles of waste material pass through perforations in the deck while the remainder of the material passes over gates 14 to be received by bucket elevators 19 which also receive material from screw conveyors 18 beneath the deck. When the quantity of material on the deck is excessive the mean level of the float rises and a striker 26 engages a stop 27 on an endless chain 28 which operates a regulator 31 through a shaft 30 and a cam 31. A valve 22 controlled by air pressure from the regulator connects the space above the liquid with atmosphere so that pulsation of the liquid is increased to lift waste material over the gates 14. When the liquid level falls again, the striker engages a stop 36 on a second endless chain 34 connected with the cam 31 through a one-way drive and a reduction gear so that the valve 22 closes more slowly. A number of valves may be controlled from a single regulator.
Patent GB-1506617-A (GB)
Title: Magnetic tape recording and/or playback apparatus
IPC: G11B15/665
Filed: 1975-06-25
Abstract: 1506617 Autothreading rotary head tape apparatus STAAR SA 25 June 1975 [5 Aue 1974] 26939/75 Heading G5R A magnetic tape 2 is wrapped in a helical path above a rotaty magnetic head drum 1 by movement, in a plane perpendicular to the axis of drum 1, of flat plates 4, 4<SP>1</SP> between a first position, Fig. 1, and a second position, Fig. 2, plates 4, 4<SP>1</SP> carrying tape-engaging fingers 3, 3<SP>1</SP> and being driven by driving elements 14, 14<SP>1</SP>, 18, 18<SP>1</SP> associated with resilient locking means 15, 20, 21, 22, 15<SP>1</SP>, 20<SP>1</SP>, 21<SP>1</SP>, 22<SP>1</SP> which cause the driving elements to be self-locking to hold the fingers 3, 3<SP>1</SP> in the second position when the force applied to finger 3, 3<SP>1</SP> by the tape is below a predetermined value during normal operation, fingers 3, 3<SP>1</SP> being released when such force exceeds said value and moving from the second position towards the first by a limited amount under the action of such force and resuming the second position when such force falls below said predetermined value again. When gears 18, 18<SP>1</SP> are rotated from the first position, Fig. 1, plates 4, 4<SP>1</SP> are pivoted about shafts 5, 51 in a frame (9), Fig. 1a (not shown), by connecting rods 14, 14<SP>1</SP> having slits 13, 13<SP>1</SP> receiving pins 10, 10<SP>1</SP> on plates 4, 4<SP>1</SP>, pins 10, 10<SP>1</SP> running in arcuate slots (11), Fig. 4 (not shown), in frame (9) and being engaged by tension springs 15, 15<SP>1</SP>. On reaching the second position, Fig. 2, plates 4, 4<SP>1</SP> abut stops 22, 22<SP>1</SP> but gears 18, 18<SP>1</SP> can continue rotating, due to slits 13, 13<SP>1</SP>, until rods 14, 14<SP>1</SP> have moved over dead-centre positions and studs 20, 20<SP>1</SP> on gears 18, 18<SP>1</SP> abut stops 21, 21<SP>1</SP> which co-operate with stops 22, 22<SP>1</SP> and springs 15, 151 to resiliently lock plates 4, 4<SP>1</SP> against pivoting in either direction whilst allowing pins 3, 3<SP>1</SP> to yield, by an amount set by the length of slits 13, 13<SP>1</SP>, under abnormal tape tension. Such movement of pins 3, 3<SP>1</SP> may cause operation of a switch to effect movement of the plates 4, 4<SP>1</SP> back to the first position if either pin 3, 3<SP>1</SP> has to yield to a persistent abnormal tape tension. To prevent vertical play and vibration of fingers 3, 3<SP>1</SP>, arms 12, 121 below frame (9) interconnect pins 10, 10<SP>1</SP> and shafts 5, 5<SP>1</SP>, plates 4, 4<SP>1</SP> each rest on frame (9) via three feet 6, 7, 8 or 6<SP>1</SP>, 7<SP>1</SP>, 8 of which one 6 and 6<SP>1</SP> of each set is adjustable, and plates 4, 4<SP>1</SP> are urged against frame (9) by spring-biased pins (25), Figs. 4, 6 (not shown), fixed to plates 4, 4<SP>1</SP> and sliding in slots (11), and by spring-biased blocking devices (30), Figs. 4, 5 (not shown), pressing on projections (36) on plates 4, 4<SP>1</SP> in the second position thereof.