baber/WOPTO huggingface dataset:
Patent GB-821578-A (GB)
Title: Stainless steel
IPC: C22C38/42
Filed: 1957-04-01
Abstract: An alloy steel having good corrosion resistance and good physical properties at room temperature and at high temperatures has a composition within the following range in per cent by weight:- .Cr.12.0-18.0 .Ni.2.25- 5.0 .Cu.2.25- 5.0 .Mo.1.0- 3.5 .B.0- 0.005 .V.0- 1.0 .W.0- 3.0 .Nb.0 up to 9 times the C content and not over 0.8 .Ti.0 up to 5 times the C content and not over 0.5 .Mn.0 up to 2.5 (1.0-2.5 if Ni is below 3.0) .N.0 up to 0.14 (0.06-0.14 if Mn is 1.0-2.5) .C.0- 0.1 .Si.0- 1.0 .S.0- 0.05 .P.0- 0.05 .Fe the remainder.. The alloy can be solution treated in the range 1700-2000 DEG F., quenched and precipitation hardened in the range 800-1200 DEG F. Specification 620,174 is referred to.
Patent GB-1489149-A (GB)
Title: Method and apparatus for processing timber
IPC: A01G23/085
Filed: 1976-03-17
Abstract: 1489149 Debranching trees EATON YALE Ltd 17 March 1976 [20 March 1975] 10655/76 Heading B5L Apparatus for delimbing timber, comprises a support, a clamp 29 engagable with one end of a felled tree T to hold the tree stationary on the support, reciprocable first delimbing means 41 which advance lengthwise of the support from a starting position to delimb a first portion of the clamped tree and which thereafter return to the starting position, severing means 43 to sever the delimbed first portion B1 from the remainder of the tree, and means 41 for gripping and for moving the remainder of the tree concurrently with and in the same direction as the returning first delimbing means, there being a stationary second delimbing means 51 for delimbing a second portion B2 of the tree during the movement of the latter and means 53 for severing the second portion B2 from the remainder of the tree. The clamp 29 forms part of a shearing device for felling trees.
Patent GB-527272-A (GB)
Title: Improvements in the construction of bomb-proof shelters, huts and the like
IPC: E04H9/10
Filed: 1939-04-06
Abstract: 527,272. Reinforced concrete; air-raid shelters. MATHEWS, C. B., and AMBROSE, J. G: April 6, 1939, No. 10711. [Classes 20 (i) and 20 (iv)] Air-raid shelters, huts, and the like, are formed of reinforced concrete the reinforcement taking the form of wattles of willows or canes which are positioned on the foundation to form a support for the concrete which is cast thereon. The building may be of square or round section and the walls may be solid or hollow. A foundation 2 is laid on the site and supports upright 3 to which are secured the wattles of willows in four layers ; the concrete is cast between the outer pair forming walls a with spaces b between. The roof d is cast solid on wood reinforcement 3a and may be further supported by a pillar k. The wattles of willows may lie near to the surface of the cast concrete or towards the centre thereof.
Patent GB-383628-A (GB)
Title: Improvements relating to fertilisers
IPC: C05C1/00
Filed: 1932-04-11
Abstract: Excess acid in the mixed fertilizers containing ammonium sulphate and ammonium nitrate, obtained according to the process of Specifications 370,993, 370,995, and 370,996 by the reaction of ammonia with nitric acid and sulphuric acid under such conditions that the heat of the reaction causes practically all the water to evaporate, is neutralized by alkalies, other than ammonia, or other substances suitable for neutralizing free acids, e.g. calcium carbonate, dolomite, blast furnace slag, Thomas meal, &c.  The process is stated to improve the granular consistency of the mixed fertilizers.  The Specification as open to inspection under Sect. 91 also states that ammonia may be used for the neutralization.  This subject-matter does not appear in the Specification as accepted.
Patent GB-729824-A (GB)
Title: Improvements in or relating to devices for centring of fastening studs or the like being fired by a cartridge-actuated tool
IPC: B25C1/18
Filed: 1952-04-29
Abstract: 729,824. Cartridge-operated tools. HOLZ, E. April 29, 1952 [April 30, 1951 ; June 15, 1951 ; July 27, 1951], No. 10768/52. Class 119. A cartridge-operated studding or nailing tool for walls has a stud-centring ring 7 arranged in the front plate 6 of the shatterguard 5 on the front end of the muzzle of the tool barrel 4. The ring may be entrained by the stud and means may be provided to limit the depth of insertion of the stud into the wall. The ring may be formed of soft metal and rifled by a helical projection on the stud. The shatter-guard may be made in half sections for ready removal.
Patent GB-271617-A (GB)
Title: Improvements in vacuum cleaners
IPC: A47L5/32
Filed: 1926-04-23
Abstract: 271,617. Stent, T. F., and Edison Swan Electric Co., Ltd. April 23, 1926. Vacuum cleaners.-A two-way valve for a vacuum cleaner provided with a floor nozzle 4 and a connection 5 for a flexible hose comprises a hollow cylindrical plug 11 fitting in the exhaust conduit and furnished with an aperture extending over little less than half the circumference, the apertures leading to the passages 4, 5 being diametrically opposite and each extending nearly half way round the conduit. The connection 5 is provided with a cap 6.
Patent GB-542139-A (GB)
Title: Improvements in or relating to wringers
IPC: D06F45/26
Filed: 1940-06-24
Abstract: 542,139. Wringers. ACME WRINGERS, Ltd., and BURT, J. W. June 24, 1940; No. 10785. [Class 138 (ii)] A wringer is provided on opposite sides with pivoted board or apron members 16, 16<SP>1</SP> adapted in one position to serve as a clothes guide board and in the other position as a water drain board. The boards may be connected by a link for simultaneous movement and secured in position by a pin 32. The sides of the boards are curved at 27 into side flanges 26 for guiding the clothes and with a bottom flange 24 cut away centrally to direct and deliver water squeezed out of the clothes. The upper edges of the boards are coiled round spindles 17 bifurcated at the ends to engage supporting brackets 19.
Patent GB-252851-A (GB)
Title: Improvements in work-chucking devices for lathes or other machine tools
IPC: B23B31/40
Filed: 1925-04-25
Abstract: 252,851. Herbert, Sir A., and Lloyd, A. H. April 25, 1925. Chucks; sockets; mandrels. - A device for gripping work in a lathe or other machine tool wherein the work may be gripped in different positions for performing successive machining operations comprises two separate gripping- devices, one being mounted on the other and the movement of the gripping-devices of one being controlled by that of the other. A chuck 2 having radial jaws 15, 16, has a central recess for a bush 4 which is tapered internally to engage the end of a mandrel 6. The mandrel is split at 25 and is expanded to grip the work 20 by a drawspindle 8 having a floating collar 11 engaging a nut 12 thereon and displaced axially by bevelled plungers 14 which are actuated by the chuck jaws either directly or through flanges 17 secured to the jaws. A spring 19 releases the draw-spindle which may be guided at 18 in the mandrel. In operation, the work may be gripped for a boring operation in the jaws of the chuck 2 with the mandrel removed. after which the work is released, the mandrel inserted in the chuck and the work gripped internally for a subsequent operation. The mandrel may grip by contracting and may be. actuated by a push-spindle and may be replaced by any form of chuck, such as a collet chuck. In a modification of the mandrel the end of the draw-spindle is threaded to engage the work, either internally or externally, which is then drawn against the end face of the mandrel. The draw or push-spindle may be operated by one plunger 14 only, but preferably a plunger is provided for each jaw of the chuck, and each plunger is retained in position by a key-way and screw 22.
Patent GB-435573-A (GB)
Title: Improvements in and relating to mineral water siphon bottles and similar containers for aerated liquids
IPC: B67D1/04
Filed: 1934-04-11
Abstract: 435,573. Siphon bottles. EUGSTER, E. J. P., Barnsbury Works, Barnsbury Street, London. April 11, 1934, Nos. 10842 and 25867. [Class 14 (i)] A siphon bottle or similar container for aerated liquids under pressure is provided with means for venting excess gas pressure automatically in advance of the discharge of liquid from the siphon, in order to obtain a quiet discharge. As shown, the upper end of the carrier 3 for the discharge tube 1 is closed by a spring-pressed ball valve 12 adapted to be opened by an extension 7b of the discharge valve 7 when the latter is actuated by the lever 16. The upper part 3 of the carrier is connected by screw threads to a lower part 3a secured to the tube 1, and is held on the packing washer 10 by the screwed head 6 of the siphon. Bores 4 in the carrier open into an annular groove 9<b> normally sealed by an annular packing disc 5 pressed down adjustably by a spring 5<a> and screwed ring 11. When the valve 7 is opened, the gas pressure in the space a of the siphon raises the disc 5, so that the pressure is relieved. The valve 7 then opens the valve 12, and liquid is discharged through the tube 1 and spout 14. In a modification, the gas-release valve is formed as a flexible sleeve arranged inside, and covering apertures in the wall of, the carrier 3, or the tube 1 if the carrier is dispensed with. In another modification, the gasrelease valve is a spring-pressed ball valve arranged in an aperture in the carrier wall, and the ball valve 12 is replaced by a sliding tubular plunger formed with a sealing collar.
Patent GB-862836-A (GB)
Title: Improvements in line focus electron emission systems
Inventor: BROAD DONALD ANTHONY GIFFORD
IPC: H01J3/02
Filed: 1956-04-11
Abstract: 862,836. X-ray tubes. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 11, 1957 [April 11, 1956; May 1, 1956], Nos. 10984/56 and 13376/56. Class 39(1). An electron gun assembly comprises a linear cathode 1 (Figs. 6 and 8) located within a focusing hood 3 and parallel to the mouth thereof, and a reflector electrode mounted close behind the cathode; the face 5a of the reflector electrode simulates, in contour and position, the zero equipotential surface which is effective to suppress backward emission when the hood has a sufficiently high negative bias with respect to the cathode, such bias being from 0 to -1 % of the anode potential. The distances cathode-to-slot-mouth and cathode-to-reflector may be adjustable. A second zero potential electrode 15 having a slot 17 (Figs. 5 and 8) may be placed immediately in front of the filament. Fig. 5 shows the distribution of the equipotential curves in this arrangement, and the trajectories of various electron paths from cathode 1 to anode 4. The gun is intended for use in X-ray tubes to produce a sharply defined line focus suitable for crystallographic work, and Fig. 8 shows such a tube, having a rotating anode 4, windows 9, and a water-jacket 10 round the gun. The tube described in Specification 854,363 may also be provided with such a gun. Some typical dimensions and operational data are given.
Patent GB-386630-A (GB)
Title: Improvements relating to the manufacture of steel alloys
IPC: C23C26/00
Filed: 1931-04-14
Abstract: 386,630. Electrodeposition of metals. ELECTRIC FURNACE CO., Ltd., 17, Victoria Street, London.-(Assignees of Clamer G. H. ; 129, S. Berkeley Square, Atlantic City, New Jersey, U.S.A.) April 14, 1931, No. 11013. Convention date, April 14, 1930. Void [Published under Sect. 91 of the Acts]. [Class 41.] An alloy of predetermined composition is formed at the surface of an-iron or steel object by coating the iron or steel with a plurality of layers of different metals in the proportions required to produce the alloy and then fusing the metals into union with the iron or steel. For example one or more layers of nickel and chromium may be deposited on a steel surface electrolytically and fused into the surface by passing alternating current through an induction coil surrounding the object, to form a layer of stainless steel at the surface. By varying the thickness &c. of the coatings, the time of heating and the frequency of the alternating current the nature and depth of the alloy may be varied ; for example the steel base may be surrounded by a layer of stainless steel containing for example 18 per cent chromium and 8 per cent nickel with an outer layer of pure chromium or alloy rich in chromium. Figs. 1 and 2 show the application of the method to the interior surface of a cylinder and the outer surface of a roll respectively, the steel base 7 being coated with layers of metals 5, 6 which are fused into the surface by the passage of alternating current from a source 9 through an induction coil 8 or 81.
Patent GB-910825-A (GB)
Title: Improvements in or relating to swaging machines
IPC: B21J7/14
Filed: 1959-04-01
Abstract: 910,825. Swaging machines. GESELLSCHAFT FUR FERTIGUNGSTECHNIK UND MASCHINENBAU G.m.b.H. April 1, 1959 [April 4, 1958], No. 11087/59. Class 83(4). A swaging machine has its radiallyacting hammers 1 driven by eccentric shafts 2 mounted eccentrically in rotatably adjustable housings 3 which are clamped in their adjusted position during the hammer blow. The eccentric shafts 2 carry flywheels 15 which are driven by a motor 10 through V- belts, gearing 11, 12, 13, 14 and slide blocks 17 engaging in radial grooves 16 of the flywheels 15. The housings 3 are rotated to vary the stroke position of the hammers, by gears 5 meshing with a central gear 6 actuated by a pinion 7 coupled to an external pinion 9 driven by an hydraulicallyoperated rack. Inserts 19, arranged on opposite sides of each hammer, carry clamping pistons 18, Fig. 3, supplied with pressure oil through a spring-biased control valve 20 actuated by a face cam 21, Fig. 4 (not shown), driven by one of the eccentric shafts 2. A spring-loaded check valve 33, Fig. 4 (not shown), maintains pressure in the hydraulic system whereby pressure pulses are transmitted to the clamping pistons 18 in timed relationship with the hammer blocks. Excess oil passes into a housing 36 and is used to lubricate the working parts. Recesses 37 are provided in the bearing surfaces of the swaging box 3 which receive the housings 3 opposite the clamping pistons to produce a wedge action and hence increase the clamping friction. Oil drain grooves 38 are also provided. These grooves may be on sheet metal bands, Figs. 12-14 (not shown). To further increase the friction wedge shaped annular ribs may be provided on the housing 3, Fig. 5 (not shown), to engage with complementary wedge grooves on the bearing surfaces of the box 3. Alternatively, a pair of friction rings connected respectively to the box 3 and to the housing may be interposed between these parts to provide three annular friction surfaces, Fig. 6 (not shown). In another embodiment, Fig. 10, the housing 3 which is rotatably adjustable by gear 5, has an inner sleeve 3a receiving the eccentric shaft 2 and to which clamping pressure is applied through rings 50 keyed to housing 3, by a stirrup 49, Fig. 11 (not shown), embracing half the circumference of the housing. This arrangement provides two annular friction surfaces for the adjustable housing 3.
Patent GB-674844-A (GB)
Title: Improvements in or relating to sheet separating machines
IPC: B65H3/08
Filed: 1948-04-22
Abstract: 674,844. Feeding sheets. BACKHOUSE, H. T. April 22, 1949 [April 22, 1948; Feb. 11, 1949], Nos. 11152/48 and 10708/49. Divided out of 674,842. Drawings to Specification. Class 100 (i). In apparatus for separating sheets one by one from a pile and wherein a gripper (e.g. a suction nozzle) engages an edge portion of each sheet in turn and bends it away from the body of the pile, and a nozzle in the form of a foot rests on the pile edge to direct a blast of air between the bent sheet and the pile, and is then lifted, a control valve for the air supply to the nozzle is located adjacent to the nozzle and is operated in timed sequence with the operation of the gripper and the movements of the foot. The apparatus is identical with that described in Specifications 674,842 and 674,843.
Patent GB-1452873-A (GB)
Title: Friction disc for driving twist tubes rotating at high revolution speeds
IPC: D02G1/06
Filed: 1975-03-18
Abstract: 1452873 Driving false twist tubes HEBERLEIN & CO AG 18 March 1975 [1 April 1974] 11174/75 Heading D1D A friction disc 1 for driving a false twist tube comprises (a) a non-resilient support flange 3 having a circular cylindrical circumferential surface and made of a metal alloy having (i) a specific electrical resistance of between 1 and 2 ohms per sq. mm. per meter, (ii) a modulus of elasticity of at least 6,500 kg. per sq. mm, and (iii) an ultimate tensile strength of at least 25 kg. per sq. mm., and (b) a resilient synthetic plastics friction ring 5 rigidly fixed to the circumferential surface of the flange 3. As shown, a driving roller for a magnetically-supported twist tube comprises two titanium alloy support flanges 3, 3' pressed onto a steel shaft 4 and spaced by a brass sleeve 2. Polyurethane friction rings 5, 5' are provided. The titanium alloy has a specific electrical resistance of 1.71 ohms per sq. mm. per meter, a modulus of elasticity of 11,600 kg. per sq. mm., and an ultimate tensile strength of 91 kg. per sq. mm.
Patent GB-1169273-A (GB)
Title: Inflatable Buoys
Inventor: LOBELLE MARCEL JULES ODILON
IPC: F42B19/36
Filed: 1967-03-09
Abstract: 1,169,273. Inflating buoys. M. L. AVIATION CO. Ltd. 9 April, 1968 [9 March, 1967], No. 11197/67. Headings B7A and B7S. [Also in Division F4] Apparatus for inflating and releasing an inflatable buoy from a submerged vessel 1 includes a tubular part 4 defining at least a part of a water-tight enclosure 5 in which to stow the buoy, and having an opening through which the buoy can be released normally closed by a locked cover 6, a normal shut valve 38 sealing off the enclosure from the exterior, a cartridge holder 13, a piston 27 located in a cylinder into which ignition products resulting from ignition of a cartridge in the holder pass, the piston 27 controlling a second valve 28 located in a passage extending between a connection 10 to a source 9 of high pressure gas and a connection 23 for the buoy in the enclosure 5, and mechanism which in response to the effect of the ignition products causes the valve 38 to flood the enclosure 5 and also unlocks and tends to eject the cover 6. The ignition products also move the piston 27 in a direction to pierce diaphragm 26 for the high pressure gas to act in opposition to the ignition products, in which position the piston remains until the enclosure has flooded sufficiently for the mechanism to eject the cover 6, whereupon the consequent reduction in pressure of the ignition products results in movement of piston 27 under the influence of the high pressure gas in source 9, which movement opens the valve 28 permitting the high pressure gas to flow through connection 23 to inflate the buoy which moves outwardly through the opening. The buoy may be used to raise the submerged vessel or to act as a marker.
Patent GB-706290-A (GB)
Title: Improvements in or relating to polysiloxanes
IPC: C08G77/00
Filed: 1952-05-02
Abstract: Polysiloxanes of the general formula RO2CCH2(CH3)2SiO [(CH3) 2SiO]n Si(CH3)2CH2 CH2 CO2R, wherein R represents an alkyl radical and n is an integer, are prepared by copolymerizing cyclic dimethylsiloxanes with a disiloxane of the general formula  [RO2CCH2CH2(CH3)2Si]2 O, wherein R has the above significance (see Group IV (b)).  The reaction may be carried out in the presence of an acid.  In the example, a disiloxane of the above general formula, wherein R represents the ethyl radical, is reacted with octamethylcyclotetrasiloxane in the presence of concentrated sulphuric acid, water is added to the resulting reaction mixture, and the organic layer separated from the reaction mixture is dried with sodium sulphate and then by azeotropic distillation with benzene, and is then distilled to give polysiloxanes of the above general formula wherein R represents the ethyl radical and n is 1, 2 and 3, and a mixture of polymers containing more than 3 dimethylsiloxane units. Specification 685,533 is referred to.ALSO:The invention comprises organo-silicon compounds of the general formula <FORM:0706290/IV (b)/1> wherein R represents an alkyl radical and n is zero or an integer. When n is zero, the compounds are obtained by esterifying the corresponding dicarboxylic disiloxanes with an alcohol ROH, R having the above significance.  When n is an integer, the compounds are prepared by co-polymerizing cyclic dimethylsiloxanes with a disiloxane of the general formula [RO2CCH2CH2(CH3)2Si]2O, wherein R has the above significance.  The latter reaction may be carried out in the presence of an acid.  Methyl, ethyl, octyl or stearyl alcohol may be used as the alcohol ROH referred to above. Octamethylcyclotetrasiloxane is a suitable cyclic dimethylsiloxane. In the example, a compound of the above general formula, where n is 0 and R represents an ethyl radical, is prepared by esterifying the corresponding acid with ethyl alcohol and hydrochloric acid.  This compound is then reacted with concentrated sulphuric acid and octamethylcyclotetrasiloxane to form compounds of the above general formula wherein R represents an ethyl radical and n is 1, 2 and 3. Specification 685,533 is referred to.
Patent GB-114561-A (GB)
Title: Improvements relating to Melting and Deoxidising of Mill Scale and the like.
Inventor: ROLLASON ARTHUR
IPC: C21C5/04
Filed: 1917-08-07
Abstract: 114,561. Rollason, A. Aug. 7, 1917 Extracting.-A charge of mill scale, iron sand, magnetic iron ore, or other oxidized form of iron is added together with finely-ground coal, coke, or charcoal to a relatively small quantity of molten pig iron or steel scrap in a furnace. A thick layer of a non-oxidizing siliceous slag, preferably from an acid-lined converter, or hard roasted dolomite, is next added to prevent the carbon of the charge from taking up oxygen from the atmosphere. After addition of the slag, the temperature of the charge is raised. During the reaction, the iron oxide of the charge is reduced and the iron takes up a little carbon; by the addition of reagents in the usual way, this iron is decarburized and refined, and by the addition of alloys and other elements is converted into steel. The quantity of the molten metal into which the mill scale &c. is charged may be from 5 per cent to 25 per cent of the charge.
Patent GB-911426-A (GB)
Title: Heat resistant steel
Inventor: KOUTSKY JAROSLAV
IPC: C22C38/24
Filed: 1961-09-27
Abstract: A steel for use in turbines contains in percentage by weight: .C...0.1-0.25 .Mn...not more than 1 .Si...not more than 0.6 .Cr...10.5-13.5 .Ni...not more than 2 .W...2-4 .V...0.1-0.3 .Fe...balance This composition yields a structure containing 20-50% of delta ferrite.
Patent GB-1267972-A (GB)
Title: Flocculation-deflocculation steps in mineral wool-clay board formation
IPC: C04B30/02
Filed: 1969-03-04
Abstract: 1,267,972. Paperboard. ARMSTRONG CORK CO. 4 March, 1969 [4 March, 1968], No. 11477/69. Headings D2A and D2B. In the process of forming a ceramic board by slurrying mineral fibre and clay with water, forming into a water-laid sheet on the wire of a board-forming machine, draining, drying and firing, the slurry is flocculated by adding a hydrated. aluminium sulphate, Ca(OH) 2 , CaCl 2  or Fe 2 (SO 4 ) 3 , the flocculated slurry is formed into a water-laid sheet, and a deflocculant that is NaOH, Na 2 CO 3  or NaHCO 3 , is showered on to the surface of the sheet, while it is draining. A secondary flocculant, e.g. polyethylene oxide, or polyacrylamide, may be mixed with the slurry just before sheet formation. The clay is preferably Mississippi M & D clay. If the white water is to be reused, its pH is adjusted to 6.8 to 7.2 by adding mineral acid. Other additives, e.g. starch, may also be present in the slurry. The specification also describes, by way of comparison, a process that omits the deflocculant spray but is otherwise similar.