baber/WOPTO huggingface dataset:
Patent GB-608304-A (GB)
Title: Plant for the production and heating of compressed air such as blast furnace air
IPC: C21B9/16
Filed: 1946-02-19
Abstract: 608,304. Turbine plant. AKT.-GES. FUR TECHNISCHE STUDIEN. Feb. 19, 1946, No. 5180. Convention date, Feb. 22, 1945. [Class 110 (iii)] In a plant for supplying compressed air, e.g. blast furnace air, in which the air is compressed to a pressure higher than that required in the consumer, heated and then expanded in a turbine driving the compressor, a quantity of air greater than that required by the consumer is branched of at least before the last stage of the turbine, reheated in the heater and then that part required by the consumer withdrawn and the remainder together with the quantity of air that has not been heated a second time expanded still further in the turbine, the exhaust of which serves as combustion air in the heater. In the plant shown, Fig. 1, the air is compressed in the compressor 2, heated in the heater 3 and then expanded in the high-pressure compressor turbine 7, the exhaust from which is reheated in the heater 10 and then passed.partly to the blast furnace 1 and partly to the low-pressure compressor turbine 8. The air from the lowpressure turbine 8 is supplied to the burner 14 of the heater 4 as combustion air. Part of the exhaust air from the turbine 7 passes through a pipe 16 byepassing the heater 10 direct to the turbine 8. A valve 17 allows the temperature at the inlet to the turbine 8 to be controlled irrespective of the temperature of the air required by the blast furnace 1. The exhaust gases from the heater 4 may be used to preheat the fuel supply to the burner 14 and part of the exhaust from the turbine 8 may be used for preheating purposes. The valve 17 is also used to balance the output of the compressor turbine 7, 8 with that required by the compressor 2. In addition, other means of balancing the power requirements may be used, such as varying the amount of intermediate cooling in the compressor, variation of the amount of air serving as excess air in the heater or variation of the quantity of air compressed to the final pressure or expanded in the turbine to the final pressure. In a modification, an additional burner 14 is used between the heating elements 3 and 10.
Patent GB-1028217-A (GB)
Title: A froth-flotation apparatus
IPC: B03D1/14
Filed: 1963-02-08
Abstract: 1, 028, 217. Froth-flotation apparatus. KLOCKNER-HUMBOLDT-DEUTZ A.G. Feb. 8, 1963 [Feb. 4, 1962], No. 5201/63. Heading B2H. Pulp and reagent is introduced at 3 to the top of a cylindrical tank 1 with a conical bottom 2, a hollow walled cylinder 9 depending into the tank to form a froth discharge chamber, and air being introduced through apertures 6 in the tank 1 and apertures 14 in the outside wall of cylinder 9. Vanes 17 calm the flow of froth as it is driven underneath the bottom edge of the discharge cylinder 9. A valve 18 regulates flow from an outlet at the base of the tank. The cylinder 9 may be adjustable to vary its depth within the tank and may be telescopic so as to independently vary the height of its overflow edge to a collecting trough 15. The vanes 17 may also be adjustable in height. Air may be introduced through nozzles, or woven material, or porous metal, plastic, or stone.
Patent GB-579356-A (GB)
Title: A device for supporting plants and other articles from stakes and the like
IPC: A01G17/08
Filed: 1944-03-21
Abstract: 579,356. Plant supports &c. GERHOLD, A. March 21, 1944, No. 5245. [Class 6 (ii)] [Also in Group XXV] Plants and other articles are supported in opensided loops projecting laterally from the clip 10, the jaws 12 of which are opened by pinching the opposite ends 14 of the clip. The plane of the loop 17 is the same as or parallel to the plane of movement of the clip members. The shank 18 may traverse the helical pivot 11 and be retained by its lower bent end. It may also extend integrally from one end of the spring. More than one loop may be carried by a single shank.
Patent GB-288783-A (GB)
Title: Improvements in the use of gasfilled photoelectric cells
IPC: H01J40/14
Filed: 1927-02-25
Abstract: 288,783. General Electric Co., Ltd., and Campbell, N. R. Feb. 23, 1927. Copying-telegraphs. - Electric currents are controlled bv light, by using the effect of a change of illumination on the normally unstable part of the frequency-current characteristic of a gas-filled photoelectric cell 1. The characteristic is stabilized by connecting in series with the cell a current limiter, such as a two-electrode thermionic valve 4, and a source of potential 9 greater than the sparking potential of the cell is also connected in series. The current passing through the valve is adjusted so that a change in illumination falling on the cell produces a change in the intermittent frequency in the circuit or a change from intermittent to direct current. Specification 288,747, [Class 40(v), Wireless signalling &c.], is referred to.
Patent GB-360307-A (GB)
Title: Improvements in film reels
IPC: G03B21/32
Filed: 1931-02-20
Abstract: 360,307. Kinematograph apparatus. PATHE CINEMA, ANCIENS, ETABLISSEMENTS PATHE FRERES, 6, Rue Francoeur, Paris. Feb. 20, 1931, No. 5399. Convention date, Feb. 27, 1930. [Class 97 (i).] The spokes 5, 6 of the side-plates of film spools are arranged in pairs separated by angular spaces 7 greater than the spaces between the members of the pairs ; tongues 9, 10 for securing the film may be formed in or secured to the hub 1, and be placed between the pairs in the vicinity of one spoke.
Patent GB-744060-A (GB)
Title: Improvements in or relating to cellulose ester compositions
IPC: C08L1/12
Filed: 1953-02-27
Abstract: Plastic compositions containing an aliphatic cellulose ester containing combined sulphate groups are stabilized by the incorporation of a small proportion of an epoxide and a small proportion of a sulphuric acid neutralizing-type stabilizer.  The cellulose ester may be cellulose propionate, acetate butyrate, acetate sorbate or, particularly, cellulose acetate.  In general, any non-volatile epoxy-type compound (preferably boiling above 400 DEG F.) compatible with the plastic composition may be used.  The epoxide is defined as an organic compound containing at least one epoxy group or oxirane ring and containing no atoms other than carbon, hydrogen and oxygen.  Epoxy compounds which may be used are oils (e.g. peanut, corn, cottonseed or soybean oil) which have been epoxidized, epiphenylin, or polyglycidyl compounds prepared by the polymerization or condensation of glycidol. Preferred epoxides are reaction or condensation products of an epihalohydrin (particularly epichlorohydrin) with a polyhydric phenol such as hydroquinone, resorcinol or, preferably, bisphenol. The neutralizing type stabilizers may be carbonates, bicarbonates, tartrates, citrates or oxalates of sodium, potassium, calcium, magnesium, lithium or barium. The epoxide stabilizer may be added to the cellulose ester at any stage between its formation and its exposure to an elevated temperature, e.g. as an aqueous emulsion sprayed on to dewatered cellulose acetate flake.  A preferred method of adding the neutralizing type stabilizer is in solution in the water used to wash the cellulose ester.  The stabilized cellulose ester compositions may contain 40-250 p.p.m. of total stabilizer metal, e.g. 5-80 p.p.m. of sodium, 25-60 of calcium, and 10-110 of magnesium.  The compositions may also contain any of the usual plasticizers.  In an example a mixture of 100 parts by weight of cellulose acetate, 35 of diethyl phthalate, 0.5 part of "Epon RN-48," an expoxy-type resinous condensation product of epichlorohydrin and bisphenol, and 0.01 part of tartaric acid (employed as a colour stabilizer) is extrusion compounded at 400 DEG  F. through a cellulose acetate extruder to obtain a moulding powder.  The cellulose acetate had been produced in the presence of sulphuric acid and neutralizing-type stabilizers had been incorporated in it by washing it with water containing 5 p.p.m. of calcium, 20 p.p.m. of magnesium and 30 p.p.m. of sodium (all chemically combined as carbonate, sulphate or chloride) and having an alkalinity equivalent to 6-7 p.p.m. of calcium carbonate.
Patent GB-559197-A (GB)
Title: Improvements in or relating to apparatus for raising, lowering or moving an object
IPC: B66F3/24
Filed: 1940-12-12
Abstract: 559,197. Lifting-jacks. MORGENSEN, O. Dec. 12, 1940, No. 5556/43. Divided out of 559,196 under which a Specification was laid open to inspection under Sect. 91 of the Acts, June 9, 1941. Drawings to Specification. [Class 78 (iii)] The subject-matter of the Specification is the same as that of Specification 559,196, but the claims are different.
Patent GB-783403-A (GB)
Title: Improvements in or relating to means for connecting vertical and horizontal members of steel framing
Inventor: GIBBS BERNARD JAMES
IPC: E04B2/78
Filed: 1956-02-23
Abstract: 783,403. Walls, constructional metalwork. LIGHT STEEL SECTIONAL CONSTRUCTION, Ltd. Feb. 23, 1956, No. 5642/56. Classes 20(2) and 20(4) Steel frame members of L, or, as shown, of channel section, such as for use in an internal partition, are secured in perpendicular relation by means of brackets comprising inner and outer plates 4, 5 having mutually perpendicular portions 4a, 5a, which embrace side flanges 1a, 3a of a horizontal member 1 and a vertical member 3 and engage at opposite sides of the base of each of the members 1, 3, wedges being provided to clamp the plates 4, 5 together. The plates 4, 5 are triangular in shape with the corners 4e, 5e cut away and are provided with aligned holes 4d, the portions 4a of plates 4 being offset outwardly to compensate for the thickness of flanges 1a, 3a. Flanges 4b, 5b on the plates bear on the outer and inner sides respectively of the base of the frame members. A stirrup 6 has outwardly bent end portions 6a bearing against the outer side of plate 4, the central portion projecting through holes 4c, 5c, in the plates and held by a channel section wedge 7 having tapered flanges. As shown two brackets are employed to secure upright 3 to base member 1, a similar arrangement being employed to connect ceiling member 2 to upright 3. The members 1, 2, 3 may have large holes 1b, 2b, 3b for lightness and small holes 1c, 2c, 3c, for use in attaching expanded metal lathing. In a modification the plates form inclined bracing means between mutually perpendicular frame members and two or more wedge means are provided.
Patent GB-490699-A (GB)
Title: Improvements in skeleton corner wardrobes
IPC: A47B81/00
Filed: 1937-02-26
Abstract: 490,699. Collapsable cabinets. EVERITT, J. Feb. 26, 1937, No. 5738. [Class 52 (i)] A corner wardrobe has an upper framework 5 secured to the room walls and upright supports 10, 12 constituting part of the wardrobe front are detachably connected thereto.
Patent GB-659632-A (GB)
Title: Improvements in or relating to closures for vacuum flasks, jugs, jars, bottles and the like
IPC: B65D39/16
Filed: 1949-03-03
Abstract: 659,632. Closures for vacuum flasks and the like. ISOVAC, Ltd., (formerly EXCELVAC FLASK CO., Ltd.), and CATLIN, R. J. March 3,1949, No. 5820. [Class 125(iii)] A plug closure for a vacuum flask or the like comprises a cork 3 having an enlarged head 3a which is secured as shown in a hollow cap 1 by means of a ring 2 such that the core is pressed against projections 1b formed on the inside of the cap.
Patent GB-279695-A (GB)
Title: Air humidifying device
IPC: F24F6/12
Filed: 1927-03-02
Abstract: 279,695. Handelan, D. March 2, 1927. Air, moistening. - An air humidifier comprises an elongated casing A arranged in the wall plastering 52, and its. front wall is provided respectively at its upper end and near its lower end with register openings 13, 14. A spray nozzle 20 is supplied with water from a pipe 19 having a cock 22 accessible through the lower opening. A vertical partition 26, insertible through this opening is supported within the casing by the upturned ends 127 of flanges 27 secured to the side walls. A curved deflector 28 extends over the upper end of the partition and forms with it a constricted and reversed passage for the air current induced through the upper opening 13, surplus moisture being deposited in a trough 18 forming the bottom of the casing whence it overflows through pipes 25, 24. A second deflector 32 which may be supported by two wing portions of the upper part of the partition is also provided. The register frames 35 which have an inturned notched flange across which are laced cords 39, are removably supported in U-shaped casings 40, 41.
Patent GB-1088202-A (GB)
Title: Improvements relating to electrical vacuum switch assemblies
Inventor: WATERTON FRANK
IPC: H01H33/34
Filed: 1964-02-12
Abstract: 1,088,202. Vacuum switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 23, 1964 [Feb. 12, 1964], No. 5887/64. Heading H2B. A multi-break circuit interrupter comprises a plurality of vacuum switches each including an evacuated envelope having a rigid body portion 8, 9 and flexible end walls 2, 3, and contacts 6, 7 movable by flexure of the end walls. The switches are stacked in alignment and operated by hydraulic devices each comprising a capsule 21 closed by an end wall of a switch or by the end walls 2, 3 of two adjacent switches in the case of the intermediate hydraulic devices as shown. The end walls move over a centre position to provide a snap-action when pressure is applied to the capsule to close the contacts. Each contact is biased to its open position by compression springs 36 which act between a flange 31 of the capsule 21 and discs 31 on the end of spigots 34 extending from a plate 33 secured to the contact. Electrical interconnection is effected by metal braid connectors, each connector having a central portion 38 secured to the plate 33 and a plurality of arms 39 secured to the flange 31. The contacts may be any of those disclosed in Specification 997,384.
Patent GB-295557-A (GB)
Title: Wax-knife
IPC: A61C13/00
Filed: 1928-02-24
Abstract: 295,557. Lessmann, R. Feb. 24, 1928. Teeth, artificial. - Wax-knives are formed with recesses or indentations 4, 5 at each end to collect and store the wax which melts when the knife is heated.
Patent GB-463675-A (GB)
Title: Improved apparatus for grinding end surfaces on the inside of ring-shaped bodies
IPC: B24B7/16
Filed: 1936-02-27
Abstract: 463,675. Grinding end surfaces. JUNG, K., (trading as JUNG MASCHINENFABRIK, K.). Feb. 27, 1936, No. 5944. Convention date, March 2, 1935. [Class 60] End surfaces are ground in ring-shaped bodies of U- or T-cross-section, for example, in bearing races or rings, in an internal grinding machine, the work 5 being held in a rotating chuck 4 on a slide 2 movable on a bed by means of a hand wheel 6 and to an extent limited by adjustable stops 8.. 11. The end surfaces are ground by a grinding- disc 15 in the form of two cones, base to base, mounted on a spindle 14 driven by a motor 16 and mounted on a carriage 17 movable along a table 18, which is angularly adjustable about a pivot 20; for grinding surfaces at right-angles to the axis of the work the spindle 14 is set at an angle to the work axis equal to the base angle of the grinding-disc cones, and for surfaces at other angles, the base angles are greater or less than the angle between the spindle and the work axis. Stops are provided on the table 18 to locate the disc 15 in the correct positions, and a trueing device 23 comprising diamonds 24, 25 movable in the directions of the arrows shown in Fig. la is used for trueing the disc 15 after coarse grinding; the carriage 17 is moved in the direction d by a small amount e for trueing the disc, and for finish grinding, the stops on the table 18 are adjusted also by the amount e.
Patent GB-491158-A (GB)
Title: Improvements in combined direct-fired and waste heat steam generators or water heaters
IPC: F22B1/18
Filed: 1937-02-27
Abstract: 491,158. Heating steam boilers by waste gases. CLARKSON THIMBLE TUBE BOILER CO., Ltd., and FOUNTAIN, H. J. Feb 27, 1937, No. 5949. [Class 123 (ii)] The outlet flue 3 of a directly - fired vertical boiler having thimble or loop tubes in the combustion space extends through the side of the boiler, and vertical water tubes 5 heated by waste gases, connect the top of the boiler to a steam and water drum 4. The vertical water tubes are surrounded by a casing 8, having an inlet 9 and an outlet 10 for the waste gases.
Patent GB-427217-A (GB)
Title: Improvements in or relating to ankle and like bandages
IPC: A61F13/06
Filed: 1934-02-23
Abstract: 427,217. Ankle and like bandages. HINDER, P. G. H., 174, Estcourt Road, Fulham, London. Feb. 23, 1934, No. 5973. [Class 81 (ii)] An ankle and like bandage comprises an endless band of elastic material divided into two loop portions by connecting the opposite sides along an inclined line extending from edge to edge of the bandage. The endless band a is divided into two portions a<3>, a' by a line of stitching a<2> which extends from a point threefifths along one edge of the folded bandage to a point two-fifths along the opposite edge, and the loop a<3> fits round the ankle, while the loop a<4> is turned inside out and drawn over and round the instep. Pockets for stays or padding may be attached to the sides of the loop a<3> by zig-zag stitching to act as protectors for the ankle, and pockets such as c, made of leather and containing padding &c., may be attached to the part underlying the instep to form supports for the metatarsals or the transverse arch.
Patent GB-794562-A (GB)
Title: Improvements in or relating to a method of and apparatus for regulating the temperature of superheated steam
Inventor: PLUMMER GILBERT ASHTON
IPC: F22G5/12
Filed: 1954-03-01
Abstract: 794,562. Regulating steam temperature. THOMPSON WATER TUBE BOILERS, Ltd., J. Feb. 28, 1955 [March 1, 1954], No. 5980/54. Class 123(3) The temperature of superheated steam produced in a unit comprising primary and secondary stage superheaters 1, 2 is regulated by injecting varying amounts of pure water into the steam flow through spray devices 13, 14, located respectively between the superheaters and after the final superheater, the amount of water injected being controlled by valves (not shown), which are adjusted according to variations in the final steam temperature as sensed by a device 15 located at the final superheater outlet. To obtain the water used in the spray devices, the whole of the saturated steam from the boiler associated with the unit is passed through a condenser 4 before entering the first superheater. Part of the steam condenses, the condensate flowing into a chamber 7 having a level control 8 which regulates the coolant supply to the condenser coil 6 by actuating a valve 9 at the coil inlet. The condensate is pumped from chamber 7 to devices 13, 14 by a pump 12.
Patent GB-123222-A (GB)
Title: Improvements in Swinging Racks for Fire Hose.
Inventor: MORRIS JOHN
IPC: A62C35/20
Filed: 1918-04-10
Abstract: 123,222. Morris, J. April 10, 1918, Hose racks.-A swinging hose rack is formed of two parallel arms B connected by a saddle piece C over which the hose pipe is folded, the nozzle being provided with projections to rest in the recesses b<1>. The arms are carried by a body A having an aperture through which the pivot, which may be the hydrant, passes.
Patent GB-300843-A (GB)
Title: An improved method of making a cellular cementitious product
IPC: C04B38/10
Filed: 1928-02-27
Abstract: 300,843. Hinton, G. B. Feb. 27, 1928. Porous compositions.-A cellular cement material containing cells of larger size surrounded by cells of smaller size is made by forming a frothy mass of cement containing bubbles of small size, forming a second mass containing bubbles of larger size, and mixing the two masses. The frothy masses are preferably made in apparatus, described in Specifications 298,847 and 300,842, comprising a container for a cement slurry mixed with a frothing flotation agent, an air supply, and oppositely rotating members for breaking up the air into bubbles of substantially uniform size. In an example, the mass containing the small bubbles is made in one apparatus and is then fed to a second apparatus in which a mass containing larger bubbles is being formed, so that the first mass is mixed with the second during the formation of the latter.
Patent GB-144765-A (GB)
Title: Improvements in or relating to sectional toys
IPC: A63H33/06
Filed: 1919-03-12
Abstract: 144,765. Wells, H. W. March 12, 1919. Building - blocks and the like. - A sectional toy for making framed structures is built up of a number of lapped members A, B, C provided with two or more equidistant lap recesses D and a number of locking-members E, F each shaped to lie in the angles of the lapped members and provided with two or more equidistant pairs of gripping shoulders H which extend over and grip the opposite outside faces of the lap joints. Partitions may be fitted to the framework to form walls &c. Toy vehicles may be formed by providing holes in the lower members of the framework to receive the axles of wheels.
Patent GB-310137-A (GB)
Title: Improvements in thermostats for water heaters
IPC: G05D23/02
Filed: 1928-02-28
Abstract: 310,137. Small, A. G. M. Feb. 28, 1928. Thermostats.-A thermostat comprising a lift valve 18 actuated by a copper tube 10 acting through an Invar rod 9 and lever 7 is provided with a three-way cock 3 adapted to control the main and bye-pass passages so that both passages or the main passage alone may be closed. The valve member is adjustably screwed to a spindle carried by a block 19 pivoted to the lever 7 and is secured in its adjusted position by a set screw 22. The lever 7 is pivoted to a sleeve 21 fitting into the body of the thermostat. The bye-pass passage is separately controlled by a cock 15 and is provided with a dirt trap 14.
Patent GB-535527-A (GB)
Title: Improvements in or relating to brakes
IPC: F16D65/46
Filed: 1940-04-05
Abstract: 535,527. Internal shoe brakes. AUTOMOTIVE PRODUCTS CO., Ltd., and GATES, G. R. G. April 5, 1940, No. 6205. [Class 103 (i)] The spreading device between the trailing and leading shoes 10 and 11 forms a rigid spacer when the brake is not applied and an adjusting means shown in the form of a screwed plunger 30 carried by the wheel cylinder plunger 23 is pivotally connected with the leading shoe 11. The wheel cylinder 15 is capable of angular movement in the plane of the shoe about a central spigot and also of limited longitudinal movement against a friction device; and the pistons are only capable of limited movement into the wheel cylinder 15 in order-to obtain the rigid spacer for the shoes. The movement of the adjusting plunger 30 is effected by means of notches 35 in the edge of the cap which carries the plunger; a spring locking finger 36 engaging in notches 35 is provided. The adjusting means may be associated with the trailing shoe 10, whose adjustment is in part effected by distortion of the drum arising from the torque of the leading shoe.
Patent GB-224785-A (GB)
Title: Improvements in and relating to springs applied to the hinged covers of spectacle cases and like cases
IPC: A45C11/04
Filed: 1924-03-11
Abstract: 224,785. Cottet, F., and Ferrer, F. March 11, 1924. Wire springs.- A spring adapted to keep the hinged covers of cases for spectacles, pipes, &c. in the closed or open position comprises two arms 6, 7 anchored at 10, 11 within the body of thecase and having at their ends loops 8, 9 engaging a slide-bar 12 fixed in lugs 13, 14 on the cover. The spring arms together with a connecting portion 5 may be bent up out of a single length of steel wire, and may be anchored to the cover while the slide-bar is fixed to the case. In a modification, the spring arms have their free ends directed away from each other and two separate slide-bars are used. The connecting portion 5 is shaped to assist in maintaining the bends at 10, 11 anchored.