baber/WOPTO huggingface dataset:
Patent GB-281372-A (GB)
Title: Improvements relating to tunnelling shields
IPC: E21D11/10
Filed: 1926-08-30
Abstract: 281,372. Manton, A. W., Price, C. G., and Fisher, R. J. Aug. 30, 1926. Tunnels; tunnelling. - A tunnelling shield has one or more pipes located outside and longitudinally of the wall of the shield and terminating near the rear thereof, whereby filling material may be packed between the excavation and the tunnel lining. Elbows 7 are secured to the shield by plates 6 and project through openings 3; a pipe 11, preferably of rubber or other flexible material, connects each elbow to a nozzle 12 which may have lateral openings 16. A channel-shaped hood 13 protects each pipe 11. Where ploughs &c. are provided to prevent rotation of the shield, the pipes 11 and hoods 13 are arranged to lie in the grooves left by the ploughs &c., or the hoods may form part of the ploughs. The nozzles 12 may be omitted. Gravel, sand &c. may be filled in at high velocity so as to pack tightly or it may be filled in at low velocity and the interstices then filled with grout, or cement, an aggregate and water may be injected simultaneously through the same pipe or separate pipes.
Patent GB-1500548-A (GB)
Title: Roll and drive gearing assembly
IPC: D21G1/00
Filed: 1975-05-20
Abstract: 1500548 Toothed gearing; universal joints VALMET OY 20 May 1975 [19 June 1974] 21395/75 Headings F2Q and F2U In a countershaft gear arrangement which is used to drive a tubular roll member 2 mounted upon a stationary axle 1, an input drive shaft 5, coaxial with axle 1, carries a central wheel 6, meshed with two or more pinions 8a, &c., each pivoted on a pin 9 in a stationary cage member 16 fast on the axle 1, and a floating annulus 10 having internal teeth 12, meshed with teeth 11 of the pinions 8a, &c., drives the roll member 2 through at least one further non-rigid coupling means, e.g. through a toothed coupling, thereby providing limited relative feedom in cumulative effect to the coupling freedom of the meshed teeth 11, 12, in order to accommodate axial misalignment which may result from deflection of the roll members 2 in use. In the embodiment of Fig. 1, internal teeth 13 are meshed with external teeth 14 of an annular member 23 secured to the roll member 2. In another embodiment, Fig. 5, there are two separate toothed couplings, having teeth 12, 20 in addition to teeth 13, 14. In a further alternative arrangement, Figs. 3, 4 a single elastic coupling includes cylindrical coupling spring stacks 19 engaged between an annulus 10d and and a ring gear 18 carrying internal teeth 12a.
Patent GB-583516-A (GB)
Title: Improvements relating to laundry and like presses
IPC: D06F71/06
Filed: 1943-12-21
Abstract: 583,516. Ironing-presses. HOWLETT, E. J. Dec. 21, 1943, No. 21413. [Class 138 (ii)] [Also in Group XXIV] The head 5 of a laundry or like press is carried by a lever arm 7 adapted to swing the head about a pivot 8 into a position'(shown dotted) behind the buck 4 or to raise it against gravity into the operative position, the operative pressure being applied to the pivotal point 8 which is guided for movement substantially in the line of pressure and the swinging of the lever arm accomplished by a power link 14 connecting it to a part which has no substantial motion relatively to the head when the operative pressure is applied. The head 5 is resiliently mounted at 6 as described in Specification 583,538 to the lever arm 7 which is C-snaped and whose pivot point 8 below the buck 4, is slidably mounted in the main casting 3 and is connected by links 11, 13 to a main hydraulic cylinder 18 the construction of which is des cribed in Specification 583,539 The power link comprises ar auxiliary power cylinder 14 which raises the head 5 frorr the position shown dotted tc the position shown in full lines. Pressure then applied tc the main cylinder 18 draws the head 5 down against the work. On reducing pressure the head 5 rises under the action of a return spring 20 and pressure then being released in the cylinder 14 gravity swings the head 5 backwards away from the operator to the position shown dotted. The head 5 and buck 4 are curved to allow sufficient clearance when the head 5 swings down. The whole of the mechanism may be enclosed except for the head 5 and lever arm 7. The buck 4 may be constructed to be inclined towards the operator.
Patent GB-949432-A (GB)
Title: A method of and machine for hobbing and shaving gearwheels
IPC: B23F23/12
Filed: 1962-06-04
Abstract: 949,432. Gear finishing machines. SCHIESS A.G. June 4, 1962 [June 9, 1961], No. 21419/62. Headings B3B and B3K.  Gears are crowned in a hobbing machine by exchanging the hobbing head for a shaving head, and tilting the shaving tool during finishing. The machine comprises a circular work-table 11, Figs. 1 and 2, clamped by a device 12, a column 15 movable radially with respect to work 13, and a tool carriage 17 movable on the column by a spindle 18. A hobbing head or a shaving head can be mounted on carriage 17, and the shavin head com rises a carriage 21, Fig. 3, movable on guides 22 by a spindle 23. A base-plate 27, Fig. 5, pivoted at 28 on carriage 17, has bearings 29, 30, which by means of spindles 31, 32, and eccentric bushes 33, 34, support a guide plate 35, which is provided with the guides 22. A tool support 36 is pivoted on carriage 21 at 37, and carries the shaving wheel 24 mounted on an eccentric bush 40 carried by a spindle 39. Bush 34 is driven by an electric or hydraulic motor through a worm 43, Fig. 6, and worm-wheel segment 42a to tilt guide plate 35. The latter may be tilted by a cam which replaces bushes 31, 33, or a wedge 46, Fig. 8, may cause the tilting. The shaving tool may be tilted at various angles α, α, Fig. 4, relative to work 13, in a continuous manner controlled from the drive to spindle 23, or the tool may be locked in the respective positions 25a, 25, 25b during each pass. Specification 761,294 is referred to.
Patent GB-597538-A (GB)
Title: Improvements in or relating to gas-filled electric discharge tubes
IPC: H01J17/56
Filed: 1945-08-22
Abstract: 597,538. Thermionic valves. PHILIPS LAMPS, Ltd. Aug. 22, 1945, No. 21461. Convention date, June 15, 1940. [Class 39 (i)] Mica or metal screens 7 divide the envelope of a gas-filled discharge valve into separate compartments, in each of which is a three-electrode system 2, 3, 4. The upper and lower mica spacers 5, 6 also extend to the envelope walls. The subject-matter is identical with that of Specification 547,646.
Patent GB-358978-A (GB)
Title: Improvements in or relating to apparatus for delivering and regulating the dischargeof material from a receptacle or supply hopper
IPC: G01G21/00
Filed: 1930-07-16
Abstract: 358,978. Feeding-devices for granular &c. materials. HARDINGE CO., Inc., 122, East 42nd Street, New York, U.S.A.- (Assignees of Hardinge, H. ; York, U.S.A.) July 16, 1930, No. 21483. Convention date, July 17, 1929. [Class 59.] The discharge of a constant weight of material from a hopper 10 and its conveyance to the feed hopper 11 of a grinding mill 12 are effected by an adjustable hopper gate 32a supported by links 33 pivoted on the hopper 10 and connected by links 35, 37 to a pivotally-mounted counterweighted frame 13 carrying an endless-belt conveyer 14 and its driving mechanism which comprises an electric motor 23, gearcase 22, and chain-gearing 19. The frame is supported through brackets 26, Fig. 2, and studs 27 upon blocks 28 carried by members 29 secured to the hopper 10. By this arrangement, the frame is adapted to tilt and, through the gate 32a, maintain constant the weight of material discharged through the hopper mouth 32 to the conveyer. The rate of discharge can be controlled by varying the positions of the studs, the bolt 39 connecting the links 35, 37, and the counterweight 40, and altering the speed of the conveyer.
Patent GB-1270561-A (GB)
Title: Castors
Inventor: HARLANG BENT
IPC: B60B33/00
Filed: 1969-04-28
Abstract: 1,270,561. Castors. KEVI S.A. April 28, 1969 [April 26, 1968; March 12, 1969], No.21489/69. Heading A4U. A castor comprises a pair of rollers 10, 11, a casing 13 and an integral partition 14 extending between and carrying the rollers, and a pivot 16 mounted in a bearing in the partition and lying outside the vertical plane or planes containing the shaft 12 or shafts for the rollers. The rollers are held to the shaft 12 by a sheet metal member 10 screwed to the partition. The rollers may be inclined.
Patent GB-1221334-A (GB)
Title: Corneal and scleral contact lenses
Inventor: REICHERDT WALTER
IPC: G02C7/04
Filed: 1968-05-07
Abstract: 1,221,334. Contact lenses. DEUTSCHE AKADEMIE DER WISSENSCHAFTEN ZU BERLIN. May 7, 1968, No.21619/68. Heading G2J. A process for the production of contact lenses from plastic mouldings or silica glasses is carried out in two operations. An unpolished lens blank produced from an organic polymer or silica glass is mounted on a support such as a meniscus-like indentation on the upper surface of a rotable truncated core, and a second layer consisting of a solution of a hydrophilic polymer added dropwise from a pipette centred vertically above the lens blank at an optimum distance from it of between 3 and 10 cm. The solvent is a physiologically compatable liquid such as acetone and contains in it a small proportion of a flow promoting agent which may be an alcohol or a mono-ether of a diol which also acts to improve the wetting properties of the flexible layer. The diopter value of the lens may be varied by control of the number of coats of polymer given to either the convex or concave side of the optically stable core. Increasingly positive diopter values may be obtained by an over-application to the convex side while increasingly negative values may be obtained by an over-application to the concave side.
Patent GB-741964-A (GB)
Title: Improvements relating to weighing machines
Inventor: BRIAN JOHN CHARLES
IPC: G01G21/00
Filed: 1953-08-06
Abstract: 741.964. Partial-load-weighing. SIMON HANDLING ENGINEERS. Ltd. Aug. 5. 1954 [Aug. 6, 1953], No. 21713/53. Class 143 In an automatic weigher comprising a weight box a and a weight bucket b, carried by a beam c partial load weighing is effected by a lever j arranged to lift the weight-box (by straps under the weightbox-hanger-bar g) so that it can be attached by a hook t to a reverse-reading- weighing-dial indicator r. Other features: (i) the automatic feed compensating lever d is pulled out of action by rod p attached to lever j (ii) the weigh-bucket discharge door can be hand operated by rod n.
Patent GB-677423-A (GB)
Title: Process of preparing streptomycin
IPC: C12P19/54
Filed: 1948-08-18
Abstract: Streptomycin is produced by aerated submerged propagation of Actinomyces griseus in an aqueous medium having nutrient components comprising an enzymatic digest of casein, a carbohydrate and inorganic salts including a source of potassium and chloride ions. The inorganic salts present may be sodium chloride, potassium chloride, di-potassium hydrogen phosphate, calcium chloride, magnesium sulphate, ferrous sulphate, zinc sulphate and sodium nitrate.  The medium may contain 1-2 per cent (e.g. 1.6 per cent) of casein digest, 0.5-2.0 per cent of carbohydrate (e.g. glucose, maltose, or starch) and 1-2 per cent of inorganic salts, percentages being by weight.  When maximum streptomycin yield is reached, the medium is filtered and worked up as usual.  Examples are given of media containing various combinations of all or some of the above salts and the yields obtained.  The culture medium of Specification 650,087 is disclaimed.  According to the Specification as open to inspection under Sect. 91, the carbohydrate may be replaced by any source of carbon. This subject-matter does not appear in the Specification as accepted.
Patent GB-1298424-A (GB)
Title: A device for filling flower-or suchlike pots with earth or the like
Inventor: NOBELEN ARNOLDUS HENDRICUS VAN
IPC: A01G9/08
Filed: 1971-04-19
Abstract: 1298424 Potting appliances A H VAN NOBELEN 19 April 1971 [16 Feb 1970] 21857/71 Heading A1E [Also in Division B8] A conveyor with outwardly extending lifting plates 9 raises earth from a vessel 1 and drops it into flowerpots 24. A belt conveyor 3 feeds the earth to the plates 9. The pots are manually or automatically deposited on a chain conveyor which feeds the pots to the filling station and then to stations in which a hole is drilled in each pot and a plant inserted. The vessel may be mounted on wheels.
Patent GB-627672-A (GB)
Title: Improvements in and relating to optical glass
IPC: C03C3/155
Filed: 1947-08-08
Abstract: 627,672. Glass manufacture. KODAK, Ltd. Aug. 8, 1947, No. 21972. Convention date, Aug. 9, 1946. Drawing to Specification. [Class 56] An optical glass having a high refractive index and a moderate Abbe value is obtained from a batch containing the following constituents, the figures being the essential minimum percentages by weight: B 2 O 3  24, CdO 5, La 2 O 3  5, (CdO+La 2 O 3  52). Small amounts of other oxides, e.g. ThO 2  or Ta 2 O 5 , may be added. The CdO and B 2 O 3  may be introduced into the batch as CdCO 3  and H 3 BO 3 .
Patent GB-503672-A (GB)
Title: Improvements in transparent cover plates
IPC: G01D11/26
Filed: 1937-08-11
Abstract: 503,672. Clock cases. ERIE RESISTOR CORPORATION. Aug. 11, 1937, No. 22130. Convention date, Sept. 25, 1936. [Class 139] [Also in Group XIX] A transparent cover-plate 3 has a bezel ring 4 of thermoplastic material die-cast around it, the bezel ring overlapping both faces of the plate, projecting portions for securing the cover-plate to a base member 1 being cast integral.with the bezel ring. These projections may be lugs 7 having spring clips 9 to hold the cover-plate against the base member' 1 or be screwed and provided with nuts and washers. Alternatively, the lugs may be dispensed with and a screw-thread cast on the outside of a projecting part 4a of the ring 4.
Patent GB-747634-A (GB)
Title: Improvements relating to glazing materials
Inventor: MERTON THOMAS RALPH
IPC: E06B3/67
Filed: 1953-08-12
Abstract: 747,634. Reflection-reducing coatings. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 20, 1954 [Aug. 12, 1953], No. 22220/53. Class 97 (1). [Also in Group X] Two panes of glass, fixed together substantially in register and at a substantially uniform spacing, each have the internal face coated with a non-reflecting film. The film may be deposited in any known manner, such as that in which aluminium or magnesium fluoride is volatilized on to the glass in a high vacuum or it may be applied in a solution, the glass then being heated to drive off the solvent and effect any desired decomposition of the solute. Silica film may be deposited as a dilute organic silicate solution, such as ethyl silicate, in an organic solvent, such as acetone and ethanol in equal proportions with a small amount of collodion, spread out into a uniform layer and the glass heated to about 600‹ C. Any annealing processes may be combined with this heating process.
Patent GB-1006655-A (GB)
Title: Temperature responsive apparatus
Inventor: PERKINS PETER THOMAS
IPC: G01K1/14
Filed: 1961-06-20
Abstract: 1,006,655. Measuring temperature electrically. SUPERHEATER CO. Ltd. June 14, 1962 [June 20,1961], No. 22285/61. Heading G1N. Apparatus for measuring the temperature of a fluid flowing in a pipe 1 comprises a temperature sensitive device 4, e.g. a thermocouple, in a tube 5 mounted in a rigid support 2 welded to the pipe 1 at 6, which contains slots 10,11 through which the test fluid passes. The areas of contact 7, 8 between the tube 5 and the support 2 are formed as threads to minimise direct heat conduction, and the temperature sensitive element is located between the portions 7, 8. In some applications the lower portion 8 may be dispensed wity the support 2 terminated at 7. Specification 865,017 is referred to.
Patent GB-463940-A (GB)
Title: Improvements in and relating to indirectly heated solid fuel cooking ovens
IPC: A21B1/14
Filed: 1935-08-08
Abstract: 463,940. Bakers' ovens ; gas producers. BELLAY, J. Aug. 8, 1935, No. 22430. Convention date, July 4. [Classes 51 (i), 51 (ii), and 55 (i)] In a Perkins-tube decker oven in which the ends 16 of the tubes 2 project into a combustion chamber 3 tapering upwardly from a gas-producer 12, the primary air supply to the latter is thermostatically controlled in accordance with the temperature of the oven and is delivered into the fuel bed through a water-cooled nozzle 7 having a slot-like outlet 10 which extends over substantially the entire width of the fuel bed. Secondary air for the combustion of the gas produced is supplied through horizontal perforated pipes 15 disposed at different levels in the combustion chamber 3. The fuel shoot 6 does not extend over the entire width of the fuel bed so as to produce, at one or both ends thereof, a sloping surface on which, due to the proximity of the end of the air slot 10, there is maintained a pilot flame 13, Fig. 3, serving to ignite the mixture in the combustion chamber. A modification is described in which the outer wall of the combustion chamber and producer is formed as a water chamber.
Patent GB-644877-A (GB)
Title: Improvements in and relating to styrene co-polymers
Inventor: COVENEY LEONARD WINSTON
IPC: C09D125/14
Filed: 1947-08-12
Abstract: Copolymers are prepared by heating under reflux styrene and polymerized or unpolymerized partial esters of polyhydric alcohols with unsaturated fatty acids of drying or semidrying oils.  The partial esters may contain one or more hydroxyl groups and may be the glycerol, pentaerythritol, mannitol or sorbitol partial esters of the fatty acids of tung, linseed, soya bean or perilla oil.  Catalysts, e.g. sulphur dioxide and b -methyl anthraquinone and aromatic, aliphatic or terpenic solvents may be used.  In using partial esters of non-conjugated fatty acids, e.g. those from linseed and soya bean oils, the styrene is slowly added to the ester maintained at a temperature not below 180 DEG  C. Polymerized or unpolymerized drying or semi-drying oils and natural or synthetic resins may be added at any stage.  The products may be esterified with monobasic or polybasic acids, e.g. drying or semi-drying oil fatty acids or heated with glycerol and/or phthalic acid to form modified alkyd resins. White spirit and cobalt driers may be added to form air-drying varnishes. Specifications 573,809 and 580,912 are referred to.
Patent GB-614779-A (GB)
Title: Improvements in or relating to deck chairs
IPC: A47C4/50
Filed: 1946-07-29
Abstract: 614,779. Deck chairs. DAVAN, W., and DAVAN, L. July 29, 1946, No. 22522. [Class 52 (ii)] A slidably mounted extension frame o is provided on the rear legs b of an X-frame chair so that the chair can be lowered to serve as a hammock. The top rail is preferably carried by a telescopically adjustable frame r and the heads of the struts h are adjustably clamped by wing-nuts j in slots s in the front legs a. In the seat position the spare canvas is rolled around the top rail which can be rotated when freed from a stop device.
Patent GB-711421-A (GB)
Title: Improvements in mining machine haulage gear
IPC: E21C29/10
Filed: 1949-08-31
Abstract: 711,421. Winches. MAVOR & COULSON. Ltd., and MAVOR, J. B. Jan. 29, 1951 [Aug. 31, 1949], No. 22578/49. Class 78 (5) Thedrum 23 of the haulage gear of a mining machine, e.g. a coal cutter, is rotated continuously at slow speed by a hydraulic motor comprising a series of cylinders 10, the pistons 12 of which act on a swash-plate 14. This plate has a universal mounting 16 on the motor shaft 8 and is engaged by fins 18 on the casing to prevent rotation. The plate bears on an inclined thrust plate 20 which is keyed to the shaft 8. A gear 24 fast on the shaft engages a ring gear 25 on the interior of the drum. The upper end 7 of the shaft 8 drives a rotary distributer valve 6 which supplies the cylinders in succession with the high-pressure liquid delivered by the variable delivery pump 5.
Patent GB-222486-A (GB)
IPC: C01G25/06
Filed: 1924-09-24
Abstract: Zirconium ores are decomposed with sulphuric acid and the product, dissolved in as little water as possible is treated with a mineral acid such as sulphuric or hydrochloric acid to precipitate zirconium sulphate, or the solution is submitted to hydrolysis at 70 DEG  or more whereby a basic sulphate of about the composition ZrO2:SO3=1 : 1.4 is obtained, which by further digestion may be converted into a more basic salt of the composition ZrO2 : SO3-=1 : 0.75.  The mother-liquors contain practically all the iron and titanium.  One or other of the above processes may be repeated, or both processes may be combined.  Solid zirconium sulphate may be digested with the mother-liquor to convert it into basic sulphate.
Patent GB-1203853-A (GB)
Title: Fluid flow machine such as a gas turbine
Inventor: COPLIN JOHN FREDERICK
IPC: B64C29/00
Filed: 1968-05-13
Abstract: 1,203,853. Jet propulsion plant; turbines. ROLLS-ROYCE Ltd. May 12, 1969, [May 13, 1968], No. 22627 / 68. Headings F1J and FIT In a lift fan unit having fan blades 40 driven by a tip turbine 44 supplied with driving gas through a scroll having guide blades 48, the latter are provided over at least a sector of the scroll with control vanes 50 disposed at the entry to the flow passages between the blades 48 and pivotal into a position in which they block the flow passages. The sector of the scroll having vanes 50 is of between about 70 and 140 degrees, the vanes being controlled by way of radial shafts 59 from a central unit 58 in a fairing 42. The unit 58 comprises a toothed rack engaging pinions on the shafts 59 and arranged so that the vanes 50 progressively open or close in sequence from one end of the sector to the other, as shown by vanes 50a, b, c in Fig.4. A lift fan unit may be mounted in each wing of an aircraft, Fig.1 (not shown), the tip turbine 44 of each unit being supplied with driving gas through respective branches 24, (26) of the bifurcated exhaust duct (22) of a common gas turbine type gas generator (14) mounted in the aircraft fuselage. The two lift units are controlled manually or automatically from a central apparatus (60) to permit attitude control of the aircraft. Additional lift units may be disposed in the aircraft fuselage. The lift units may also be used in hovercraft.
Patent GB-1144004-A (GB)
Title: Hanger for an inverted channel section insulating sheath containing an electrical conductor
Inventor: HOLLANDER JOHN MICHAEL
IPC: B60M1/24
Filed: 1966-05-21
Abstract: 1,144,004. Electrical conductors. E.M.S. ELECTRICAL PRODUCTS Ltd. 25 April, 1967 [21 May, 1966], No. 22739/66. Heading H1A. [Also in Divisions E2 and H2] An S-shaped conductor 11 which coacts with a travelling contact has an insulating sheath 10 supported by a hanger which is screwed into a support 18.