baber/WOPTO huggingface dataset:
Patent GB-1116615-A (GB)
Title: Improvements in or relating to the production of yeast
IPC: C12N1/18
Filed: 1966-11-04
Abstract: In a process for continuously producing yeast (e.g. Candida tropicalis), the yeast is produced in the presence of at least one substance that improves the kinetics of the yeast cells and there is maintained a substantially constant dilution rate below the value at which alcohol is formed. Suitable substances (as referred to) are amino acids and their amides, particularly glutamic acid, glutamine, aspartic acid and asparagine, and these are employed in amounts of 5-10 grams per 100 grams of the nutrient sugar. Typically, the dilution rate is 0.1 to 0.3 per hour, the concentration of sugar (added as molasses) amounts to 5% by weight of the nutrient solution and an absorption of 200 millimols of oxygen per litre of fermentation liquid per hour is effected; the absorption of oxygen should be correspondingly lower or higher for a lower or higher sugar concentration. Subsequent to its being produced, the yeast is aerated without the addition of further sugar whereby to produce yeast with an adequate leavening power.
Patent GB-1440610-A (GB)
Title: Method for producing a substantially voidless filament rein forced resin matrix
IPC: B29C70/46
Filed: 1973-10-24
Abstract: 1440610 Moulded composite turbine disc UNITED AIRCRAFT CORP 24 Oct 1973 [1 Nov 1972] 49603/73 Heading B5A [Also in Division F1] A method of producing a voidless filament reinforced resin matrix composite comprises placing a filament reinforced uncured resin matrix composite containing voids in a mould cavity to occupy a portion thereof, filling the remaining portion of the cavity with dry uncured resin powder, the resin being the same as in the composite and using heat and pressure to melt the resin and to force the melted resin powder into the composite to fill the voids therein. The composite may comprise filaments 12, 14 hoop wound about the circumference of a titanium gas turbine compressor disc 10. There may be two cavities 18, 20. The pressure may be applied to the cavities by respective annular punches 28, 30. The cavities may be heated by resistance heating coils 26 located in the walls of an annular die 16, 22, 24 and in the punches 28, 30. The filaments may be of boron, carbon, silicon carbide or silicon carbide coated boron. The resin may be polyimide, polybenzimadazole polybenzothiozole or polyoxadiazole. The filaments may be coated with a resin dissolved in a solvent by either passing the filaments through a bath prior to winding or spraying the filaments during winding around the disc 10. At least part of the solvent is removed in an oven prior to inserting the wound disc into the mould.
Patent GB-1483743-A (GB)
Title: Seal for making a seal between two relatively movable members
IPC: F16J9/16
Filed: 1974-11-15
Abstract: 1483743 Seals NIPPON PISTON RING CO Ltd 15 Nov 1974 [17 Nov 1973] 49632/74 Heading F2T A seal ring between relatively movable parts such as a piston 2 and cylinder 5 comprises a ring 6 of rectangular section and a ring 76 of L-shaped section, the latter being dished by insertion in the cylinder and the sliding surface 74 of its axial portion being inclined relative to  its initially radial portion 75 by an angle equal to or greater than that through which the ring is dished, whereby contact with the cylinder can occur over the whole or only a part of its outer surface. The axial portion 74 is located in a flange portion 81 of a groove in the piston 2. Means, not described, may prevent rotation of the seal in its groove, and the seal rings may be of synthetic resin.
Patent GB-1191118-A (GB)
Title: Improvements in Film Transport Mechanisms for Telecine Systems
IPC: G03B21/43
Filed: 1967-11-02
Abstract: 1,191,118. Film feed mechanisms. COMPAGNIE FRANCAISE THOMSON HOUSTONHOTCHKISS BRANDT. Nov. 2, 1967 [Nov. 4, 1966], No.49835/67. Heading G2E. A cinematographic film feed mechanism for use in telecinema systems of the type using a double light beam to form the scanning spot, is designed to provide constant film speed at position 3 of the scanning channel, and at the sound reading region 7, and comprises a main synchronous motor actuating the film transport device at regions 3 and 7, and at least one auxiliary synchronous motor actuating a continuous feed device drawing film from a supply spool, the film being mounted to form loops 12, 13 between the feed and transport devices to provide mechanical de-coupling between the main and auxiliary motors. Inlet and outlet sprockets 8, 9 of the film feed device are driven by auxiliary motor (16), Fig.2 (not shown), which is coupled through gearing to the main motor (15) by means of a magnetic clutch during starting and stopping to avoid breaking the film due to different motor speeds. Alternatively, electrical coupling through a synchro-coupler controlled by a triple-phase relay, fed from the common supply, may be used.
Patent GB-1366106-A (GB)
Title: Coated article and method of making same
IPC: C23C2/26
Filed: 1971-10-28
Abstract: 1366106 Coating surfaces TOLLENS & CO NV and PLAATWERKERIJ EN VERZINKERIJ NV 28 Oct 1971 [29 Oct 1970] 50248/ 71 Heading B2E Protective films are obtained on hot-dip metal coated articles by dripping a spray of paint directly against the solidified metal coating while the latter is still hot from the hot-dip reatment, the paint comprising flowing agents not showing any boiling phenomenon at the temperature of the articles at the time of spraying. Preferably the paint is applied when the articles are at a temperature of at least 100C. The paint may comprise a thermosetting resin and the preferred metals are zinc, tin, lead, aluminium and alloys of these. The temperature at spraying may be sufficient to cross-link the binding agent of the paint. Suitable thermosetting resins are epoxy resins and alkyd resins. The paint may be applied by electrostatic spray. In the Example H-section steel beams are coated.
Patent GB-1338270-A (GB)
Title: Fluid flow control valves
IPC: F16K39/02
Filed: 1971-10-29
Abstract: 1338270 Valves YAMATO SANGYO CO Ltd 29 Oct 1971 50389/71 Heading F2V The closure member 12 having upper and lower cylindrical sliding ports 12A, 12B, an intermediate closure rim 12C and a neck 12D is fluid pressure balanced with respect to the pressures acting in chamber 14A connected to inlet 17 and chamber 14B to connected to outlet 20. As shown the valve is a pressure regulator with an adjustable loading spring 34 and a diaphragm 28 responsive to outlet pressure. Alternatively the closure member may be manually actuated via a screw spindle or actuated by an electromagnet.
Patent GB-1171257-A (GB)
Title: Process and Apparatus for Processing Irradiated Ceramic Fuel Elements
Inventor: MANEVY GEORGES
IPC: G21C19/48
Filed: 1968-10-24
Abstract: 1,171,257. Processing spent nuclear fuel. COMMISSARIAT A L'ENERGIE ATOMIQUE. 24 Oct., 1968 [21 Nov., 1967], No. 50512/68. Heading G6R. Apparatus for the treatment of spent fuel elements consisting of ceramic fuel pellets within a stainless steel can comprises, Fig. 1, a shear 14 for cutting a fuel element 10 into short fragments 12, these fragments dropping into the hopper 16 of a ball mill 18. The ball mill drum 20 is inclined and rotated on journals 22 by a motor 40, compartments formed by partitions 26 receiving the balls 30. Openings 28 in the partitions 26 permit passage of the fragments 12 but are too small to receive the balls. Longitudinal ribs 32 on the drum continually raise the balls as the drum rotates, the hammering action on the fragments 12 causing the fuel to leave the can fragments and to be reduced to powder. The powdered fuel and can fragments leave the mill 18 through a spout 34 and drop on to a vibratory screen 36, the latter separating the powder which drops into a collector 38. A modified apparatus, Fig. 2, additionally permitting fluorination treatment of UO 2 -PUO 2  fuel comprises a drum extension 44, 46 provided with heating means (not shown). This extension is supplied with hydrofluoric acid through a pipe 48 and with oxygen through a pipe 50. In part 44 of the extension, which is heated to about 400 C., the UO 2  is oxidized to form U 3 O 8  and is partially fluorinated. In part 46 of the extension, which is heated to about 500 C., prefluorination to form UF 4  and PuF 4  is completed. The empty can fragments, the fission products which have not undergone the fluorination reaction and the mixture of tetra-fluorides are collected in the lock-chamber 54. The volatile fission products together with excess hydrofluoric acid and oxygen leave through the tube 22<SP>1</SP> and pipe 56.
Patent GB-1103070-A (GB)
Title: A control means in a fuel burning system
IPC: A61F9/00
Filed: 1966-11-14
Abstract: 1,103,070. Burner control systems. MALLORY TIMERS Ltd. 14 Nov., 1966 [17 Nov., 1965], No. 50887/66. Heading F4T. An oil burner control system includes a timer with a motor 30 operating cam switches 37 . . . 41, a thermostat 27, a flame switch 29 and a heat relay 26 which provide a programmed ignition procedure. In operation, a call for heat by thermostat 27 closes the circuit including an igniter 47 and the relay 26 closes contacts 25, 28 so that when the igniter reaches ignition temperature the current flowing through it energizes a relay 24 to energize the timer motor 30 to advance the cam 32 to close switch 38 and open switch 39 and provide a purge period, at the end of which time switches 37, 40 are closed to run the burner motor 44 and open oil valve 46. As combustion takes place the flame switch 29 opens to stop timer motor 30 and disconnect the igniter 47 but the burner motor 44 keeps running and oil valve 46 remains open until the call for heat is satisfied. As the thermostat 27 opens, relay 26 opens contacts 25, 28 to close the oil valve 46 but the motor 44 still runs to purge the burner and as it cools, the flame switch 29 closes, timer motor 30 starts and at the end of the purge period switch 37 is opened and switch 39 closed to return the system to the standby condition. Power failure causes the system to fail safe and renewal of the supply starts the timer motor and causes a purge. Flame failure or failure to get ignition causes a trip relay 22 to operate and de-energize the system, the trip being reset manually.
Patent GB-1480921-A (GB)
Title: Stabilized aqueous formaldehyde solutions and process for their manufacture
IPC: C07C45/86
Filed: 1974-11-25
Abstract: 1480921 Stabilizing aqueous formaldehyde BASF AG 25 Nov 1974 [26 Nov 1973] 50896/74 Heading C2C Aqueous formaldehyde solutions are stabilized by means of a bis-guanamine of formula wherein the two substituent on the phenylene ring are in m or p-position to each other. 0À001 to 0À5% by weight of stabilizer may be used and the formaldehyde solution may contain 28-65% by weight of formaldehyde. The stabilizer may be added as a stock solution in a formaldehyde solution of higher strength than that to be stabilized and having a pH of 2À5 to 5À8 and the latter is preferably kept at 40-80 C. for 10-30 hours before adding the stock solution.
Patent GB-1187337-A (GB)
Title: Conductive Grinding Wheel
IPC: B24D7/00
Filed: 1968-10-28
Abstract: 1,187,337. Abrasive wheels. NORTON CO. 28 Oct., 1968 [31 Oct., 1967], No. 51067/68 Heading C4V. [Also in Division C7] An organic resin bonded electrically conductive grinding wheel for electrochemical grinding contains abrasive grains in a thermoset resin matrix and contains 10 to 25% by volume of finely divided silver in the form of conducting paths. The resin may be a phenolic resin and the abrasive may be diamond, aluminium oxide or silicon carbide. The wheels may be made by forming a mix of resin powder with a curing agent such as hexamethylene tetramine and 10 to 25% by volume of silver powder having a particle size less than 10 microns, blending the mix with abrasive grains and moulding and curing the resin to a thermoset condition.
Patent GB-1001876-A (GB)
Title: Apparatus for detecting radiation
IPC: G01T1/178
Filed: 1961-09-25
Abstract: 1,001,876. Radiation detectors. AMES LAB-TEK Inc. Sept. 25,1961 [Oct. 10,1960], No. 51263/64. Divided out of 1,001,875. Drawings to Specification. Heading G1A. The present invention is described with reference to a part of the apparatus disclosed in Specification 1, 001, 875. The claims are directed to radiation detecting apparatus constructed and arranged so that a predetermined volume of radioactive test sample can readily be presented to a radiation-electric transducer.
Patent GB-1134397-A (GB)
Title: Valve-means for gas-fuelled lighters
Inventor: HOCQ ROBERT RAYMOND
IPC: F23Q2/16
Filed: 1966-11-17
Abstract: 1,134,397. Lighters. SOC. FRANCO HISPANO AMERICAINE FRANCISPAM. 17 Nov., 1966, No. 51648/66. Heading F4F. A gas-fuelled lighter has the liquid fuel fed to a porous washer 18 by means of a wick 17 dipping into the reservoir, the washer 18 being compressed in controllable fashion between the wick and wick carrier 14 and a member 12 which has an axial passage 11, and the wick carrier 14 is extended to form a grooved axial head 20 mating with the passage 11 to form interrupted capillary passages through which the fuel flows and vaporizes. In modifications the passage 11 has grooved walls.
Patent GB-1315409-A (GB)
Title: Change speed transmission
IPC: F16H47/08
Filed: 1970-10-30
Abstract: 1315409 Change-speed control CHRYSLER CORP 30 Oct 1970 [22 Dec 1969 (2)] 51803/70 Heading F2D The subject-matter is the same as that of Specification 1,315,408, but the claims are directed to the compound-piston servo (58, Fig. 11) applying the second-ratio brake in such a manner that, during a 3-2 downshift, a controlled overlap between second-ratio brake engagement and direct-drive clutch release is produced.
Patent GB-1279252-A (GB)
Title: Improvements in or relating to apparatus for coating fibres
Inventor: BOWEN DENNIS HERBERT
IPC: C03C14/00
Filed: 1968-11-01
Abstract: 1279252 Glass fibres; coating fibres with glass UNITED KINGDOM ATOMIC ENERGY AUTHORITY 29 Oct 1969 [1 Nov 1968] 52023/68 Heading C1M [Also in Divisions C3 and D1] Fibres in a tow 11 are passed through a coating slurry 27 of a powdered glass in a binder and solvent, in the form of a flat ribbon, the two being transported by a series of rollers after unwinding from a container 12, air being directed from spaced fish-tail nozzles 25 and 26 in opposed manner between the tow and respective rollers 16 and 21, the subsequent rollers having flanges to define the width of the ribbon, and light mangling being effected by rollers 23 and 24. As shown, the tow passes between a partially immersed roller 22 in a tapered coating vessel 28, coating material being re-cycled from an outlet 44 to a nozzle 31 similar in shape and position to nozzles 25 and 26. In another embodiment (Fig. 2), a modified vessel dispensing with nozzle 31 and containing a plurality of immersed rollers is employed, and the coating material is stirred without recirculation by passage of air upwards through a glass filter plate at the base of the vessel. The fibres may be of carbon, glass or metal or of an organic material but particularly carbon. The slurry may be of 5 to 15% by volume nucleated or boro-silicate glass in 5 to 15% polyvinylalcohol binder and 90 to 70% methyl-ethyl ketone solvent. The coated fibres are wound on to a square cross-section take up drum (Fig. 3). Rectangular composite sheets (65, Fig. 3) of the coated tow may be cut from the take up drum and pressed in a mould under high temperature and pressure; for a boro-silicate matrix, the composite is pressed in a stainless steel mould coated with colloidal graphite at 5000 p.s.i. at 900 C.; for a nucleated glass matrix, the composite is pressed in a graphite mould coated with colloidal graphite at 1500 p.s.i. at 1300 C. The composite may be coated during or after pressing with glass, a resin or silicon which is subsequently nitrided; the coating may be applied as a slurry of the powdered coating material in a binder on to a carrier which is dried and partially cured before being placed on the composite. The mould may be lined with molybdenum strip.
Patent GB-1280149-A (GB)
Title: Method of and apparatus for welding
Inventor: ALLEN BRIAN ROBERT
IPC: B23K20/02
Filed: 1968-11-04
Abstract: 1280149 Welding by pressure JOSEPH LUCAS (INDUSTRIES) Ltd 31 Oct 1969 [4 Nov 1968] 52075/68 Heading B3R In welding apparatus including a workpiece supporting anvil 14 and a tool 15 movable towards and away from the anvil, the anvil is supported on a fluid bearing for angular movement relative to the movable tool. In one embodiment the anvil 14 is hemispherical and is positioned in a hemispherical recess formed in a conductive bed 11. Fluid is supplied to the recess via a plurality of apertures 13 communicating with a source of pressurized fluid by way of an annular chamber 13a. The tool 15 is in the form of a welding electrode connected to one side of the current supply and carried by a support frame (not shown) attached to the bed 11 and electrically insulated from it. The bed 11 is connected to the other side of the current supply. Pressure upon the electrode will cause the anvil 14 to move should there be any misalignment, and increased pressure together with a control of the fluid pressure causes the fluid film to collapse so that the anvil 14 makes contact with the bed 11 and a current is passed for welding to be initiated. The tool 15 may alternatively comprise a cold welding tool or an ultrasonic welding tool and in these latter two cases the welding operation can take place while the anvil is still supported by the fluid film since it is not necessary to establish an electrical connection. The anvil may alternatively be replaced by a semi-cylindrical anvil supported in a semi-cylindrical recess for producing a linear weld. Cover means may be provided for the apparatus. In the embodiment shown a cylindrical conductive cover 16a is resistance welded to a base plate 16b for supporting a semiconductor device in an hermitically sealed enclosure.
Patent GB-1277888-A (GB)
Title: Film-flow packing
Inventor: NEALE ROBERT FRANCIS
IPC: B32B27/00
Filed: 1968-11-04
Abstract: 1277888 Finishing edges of non-metallic sheet material; sheet forming IMPERIAL CHEMICAL INDUSTRIES Ltd 23 Oct 1969 [4 Nov 1968] 52128/68 Headings B5A and B5K A method of reinforcing a film-flow packing consisting of a bonded atack of sheets of a rigid thermoplastic organic polymeric material comprises compressing the bonded stack between two platens in a press, the platens contacting the load-bearing edges of at least some of the sheets in the packing, one or both platens being heated to a temperature which renders the edges of the sheets in contact with the platen(s) plastic so that during compression such edges are formed into a flange. In a preferred embodiment, at least the heated platen is provided with a coating of polytetrafluoroethylene. In an alternative embodiment a substrate e.g. a metal gauze or a mat coated with polytetrafluoroethylene and which may or may not be removed after compression is interposed between a hot platen and the edges to be reinforced. The example describes the reinforcement of a packing comprising adhesively bonded alternating sheets of flat and flat peaked corrugated polyvinyl chloride by a method involving the use of a press having a heated bottom platen and an unheated top platen, the packing being inverted between two pressing operations.
Patent GB-1103239-A (GB)
Title: Control device for electric switches
Inventor: TERRIER G
IPC: H01H3/26
Filed: 1966-11-22
Abstract: 1,103,239. Actuation of switches. ETABLISSMENTS MERLIN & GERIN SOC. ANON. 22 Nov., 1966 [2 Dec., 1965], No. 52236/66. Heading HlN. A motor and manually-operable control device for a switch 10 having a pivoted operating lever 11 controlled by a slide 20 (Figs. 5, 6, not shown), comprises a rotary member 24, for causing sliding and reciprocating movement of slide 20, a motor-controlled unidirectional step-by-step drive device for member 24 and a manually-controlled unidirectional step-bystep drive device therefor. A motor 41 rotates an eccentric 40 which imparts via a rooking lever 36, 37 a reciprocating movement to the tail (35) of a rider 32 (Figs. 11, 13 14, not shown). The rider 32 periodically wedges against the cam 31 of rotary member 24 to drive the latter in step-by-step fashion, while during return movement of tail (35) and rider 32 the cam 31 is wedged tight by a second rider 32<SP>1</SP> to prevent the member 24 returning rearward. An eccentric shoulder 23 of member 24 moves slide 20 by rollers 22 thereon between guiding spurs 19 so that lever 11 is actuated. Another cam 27 of member 24 controls a motorreversing switch 28 via a lever 29 after movement of lever 11. Manual actuation is by a handle 45 imparting a reciprocating movement to a disc portion 44 thereof having a bent lug 47 which periodically actuates the tail 35<SP>1</SP> of rider 321. Rider 32<SP>1</SP> then actuates cam 31 and rotary member 24 step-by-step, and the rider 32 serves to prevent rearward movement of the member 24.
Patent GB-1213014-A (GB)
Title: Testing blood for the presence of haemoglobins
Inventor: TILLEM HAROLD B
IPC: G01N33/72
Filed: 1967-11-16
Abstract: 1,213,014. Determination of haemoglobin S. H. B. TILLEM. 16 Nov., 1967 [5 Oct., 1967], No. 52245/67. Heading BIX. A composition for testing whole blood for haemoglobin S comprises a buffer solution, for example a phosphate buffer pH 6.5 to 6.8, a reducing agent and an erythrocyte haemolyzing agent. The reducing agent may be sodium hydrosulphite and the haemolyzing agent a 2% solution of saponin. If the blood sample contains haemoglobin S this precipitates when the sample is mixed with the test solution, making the solution turbid.
Patent GB-1282437-A (GB)
Title: Skin care composition and its preparation
Inventor: REHTIJARVI KATRI ELINA
IPC: A61K8/26
Filed: 1969-10-24
Abstract: 1282437 Skin care compositions K E REHTIJARVI and J E VILKKI 24 Oct 1969 [25 Oct 1968] 52305/69 Heading A5B Skin care compositions, comprising as a base emulsion an oil-water and/or water-oil emulsion, and one or more non-ionic emulsifiers, and as a skin film-forming phase (a) at least one ionic, layer-forming, colloidal complex silicate compound and (b) a gelling organic substance, (a) and (b) together comprising one per cent by weight of the total composition and the pH of the composition being from 4.0 to 6.0, may be prepared by suspending (a) and (b) in an oil-water and/or wateroil emulsion. Ingredient (a) may be bentonite, bolus or veegum; (b) may be pectin, tragacanth, agar, methyl cellulose or its derivatives, sodium alginate or gelatine; and the oil may be a vegetable oil such as sesame and/or soy oil. The base emulsion containing the skin film-forming substance is preferably a glycerol suspension. The compositions may also contain cholesterol and/or a medicament such as zinc oxide, talcum, titanium oxide and/or cortisone derivatives e.g. hydrocortisone and fluorocortisone.
Patent GB-1537538-A (GB)
Title: Method for detecting physiological conditions especially pregnancy
IPC: G01N33/76
Filed: 1977-12-06
Abstract: 1537538 Pregnancy test method AMERICAN HOME PRODUCTS CORP 6 Dec 1977 [16 Dec 1976] 52640/76 Heading G1B In pregnancy testing, human chorionic gonadotropin (HCG) or its beta sub-unit in body fluid samples is determined by first concentrating the sample by ultra-filtration then carrying out the assay on the retentate. Specification 1537537  relates to suitable ultrafiltration devices. The filter may be prewashed with a protein or a protein may be added to a urine sample before it is tested. It is stated that the invention may be applied in the detection of physiological conditions other than pregnancy by determination of luteinizing hormone, follicle stimulating hormone, human menopausal gonadotropin or antibodies to gonadotropins.