baber/WOPTO huggingface dataset:
Patent GB-1013176-A (GB)
Title: Improvements relating to a device for forming fabric selvedges
IPC: D03D5/00
Filed: 1964-08-07
Abstract: 1,013,176. Leno-woven selvedges. F. SCHULTEN. Aug. 7, 1964 [Aug. 10, 1963], No. 32331/64. Headings D1E and D1K. An internal selvedge mechanism for leno yarns 8, 9 comprises two lens healds 5, 6 which run in the right hand and left hand pair alternately of three guides 2, 3, 4, between which are slots 37, 38 in which standard threads 39-42 are independantly shed. As the leno healds 5, 6 rise (Fig. 2) a tongue 14a strikes a member 31 which pivots about 30 against a leaf spring 34 so that it "snaps over" its centre and pushes down a rod 28 to tilt a heald guide 10 so that, when the healds descend, they enter the left hand pair of guides 2, 3. When the healds next ascent the member 31 pushes down rod 27 to tilt the guid 10 back into the position of Fig. 2 so that the healds enter the right hand pan of the guides 3, 4 as they descend. A fabric construction as in Fig. 3 is obtained in which the leno yarns 8, 9 cross over two or more standard wash threads 39-42, this fabric being subsequently divided along the warp.
Patent GB-335769-A (GB)
Title: Fusing coatings to metal sheets
IPC: H05B6/10
Filed: 1929-10-24
Abstract: 335,769. Ajax Metal Co., (Assignees of Neuhauss, H.). Oct. 24, 1928, [Convention date]. Heating by electricity.-A flat sheet of metal having an adherent coating is formed into a cylinder 16, Fig. 3, and its edges joined by conductive connections 21 in order that the coating may be fused by an alternating current, preferably of high-frequency, induced therein by a. primary coil 17<1>. In the apparatus shown in Fig. 9 for fusing coatings on both sides of a sheet, the cylinder 16 formed therefrom is fed between internal and external guides 22, 27 having recesses in which are housed inducing coils 17, 17<1>.
Patent GB-425328-A (GB)
Title: Improvements in or relating to miners' safety lamps of the flame type
IPC: F21L23/00
Filed: 1933-11-21
Abstract: 425,328. Miners' lamps. WEDGWOOD, A., Allanby House, Granville Drive, Forest Hall, Northumberland. Nov. 21, 1933, No. 32471. [Classes 75 (ii) and 75 (iv)] In a miners' non-electric safety lamp a substantially rectangular sheet metal reflector is held in position by engaging the inner surface of a cylindrical lamp glass. The reflector may be disposed between an outer glass and an additional inner glass chimney, and it may be made of stainless steel or of copper coated with chromium or nickel. It may be so shaped as to project a concentrated beam, to focus the light at a desired distance in front of the lamp, or to spread the light over an angle of 180‹, and its length may be approximately equal to the height of the flame or of the lamp glass. In the form shown in Fig. 2, the edges A<3>, A<4> of the reflector A contact with diametrically opposite points on the inner surface of the glass B and extra support may be provided by means of longitudinal axes A<1>, A<2> also engaging the inner surface of the glass. In the form shown in Fig. 4, the reflector F is held in position by means of upper and lower sets of curved springy arms F<1>, F<2> integral with the reflector, whilst according to Fig. 5, the reflector G engages in longitudinal grooves H<1>, H<2> in the glass H. In each form the lower end of the reflector may be provided with one or more ventilation apertures or with a cutaway portion as shown at F<3>, Fig. 4.
Patent GB-643510-A (GB)
Title: Process for the preparation of artificial cryolite substantially free from silica
IPC: C01F7/54
Filed: 1947-12-10
Abstract: In the precipitation of artificial cryolite by mixing a sodium fluoride solution having a pH not less than 7 with an aluminium fluoride solution having a pH of 3.5-4.5, one or both solutions containing soluble silica as an impurity, the cryolite is p  prepared substantially free from silica by first acidifying the sodium fluoride solution with, for example, sulphuric acid, to a pH value approximating that of the aluminium fluoride solution and filtering, if necessary, before admixture with the aluminium fluoride solution. The solutions of aluminium fluoride and sodium fluoride may be prepared by treating hydrofluosilicic acid with alumina and sodium carbonate respectively.
Patent GB-276546-A (GB)
Title: Improvements in pistons and cylinders
IPC: F02F1/18
Filed: 1926-12-28
Abstract: 276,546. Nicholson, S. G. Dec. 28, 1926. Multiple-acting bucket pumps. - An engine or pump comprises two semi - cylindrical cylinders, which may be formed by a partition inserted in a circular cylinder, or by two semicylindrical cylinders 10 separated by a partition 11. Fig. 3 shows a pump, the s e m i - cylindrical pistons 9 of which are cperated by an oscillating beam 5. Alternatively, the pump may be operated by rack and pinion mechanism.
Patent GB-1025582-A (GB)
Title: Improvements in or relating to the manufacture of flat glass
IPC: C03B18/18
Filed: 1963-08-19
Abstract: In the manufacture of flat glass by the floatation technique such as is described in Specification 893,663 there is confined adjacent the molten metal a compound of an additive element for the molten metal whose release into the molten metal is controlled by the application of a controlled electric current to the compound to cause electrolysis of the compound.  The compound, which is preferably a halide salt of lithium, sodium, potassium, magnesium, calcium, strontium, barium, cerium, manganese, iron, zinc, boron, aluminium, silicon, titanium, zirconium, niobium or tantalum is confined in liquid form as a layer above the molten metal in a pocket in the tank structure, the current auxiliary heating and circulation being applied as described in Specification 1,025,581.  A modified example is described with reference to Fig. 3.  A reservoir 45 is extended from and separated from the pocket 31 by a wall 48.  The reservoir 46 and pocket 31 are covered over by a roof 50. A layer 52 of a compound of the additive metal is confined to be in contact with both the molten metal in pocket 31 and molten metal additive element in reservoir 46.  Electrodes 42 and 53 extend through the floors into the molten metal and molten metal additive respectively, and are so connected that the molten metal in pocket 31 becomes the negative electrode.  When the electrolysing current is applied the compound is continually replenished by the interaction of the element released at the positive electrode with fresh additive metal from the reservoir.
Patent GB-1026307-A (GB)
Title: Improvements in and relating to the desulphurisation of hydrocarbon oils
Inventor: HARDWICK WILLIAM EDWARD
IPC: C10G65/04
Filed: 1963-08-20
Abstract: A hydrocarbon oil is desulphurized in a process which comprises vaporizing the oil, before or after admixture with a hydrogen-rich gas, passing the mixture over a hydrodesulphurization catalyst, for example, cobalt or nickel molybdate, in a first zone, cooling the effluent to obtain a hydrocarbon condensate which is separated from the gas and vaporized, again before or after admixture with a hydrogen-rich gas, and passing the mixture over a material selected from the oxides of zinc, manganese, and iron, with or without a hydrosulphurization catalyst, such as cobalt or nickel molybdate. The waste hydrogen sulphide-containing hydrogen gas may be burnt to heat the vaporizers.  The temperature in the first and second zones may be 350-450 DEG  C., and the pressure atmospheric or superatmospheric. The oil product may be vaporized, mixed with hydrogen, and subjected to steam reforming to obtain a hydrogen-rich gas.
Patent GB-1109552-A (GB)
Title: Helicopter rotor system
IPC: B64C27/48
Filed: 1965-07-30
Abstract: 1,109,552. Helicopter rotors. LOCKHEED AIRCRAFT CORPORATION. 30 July, 1965 [5 Aug., 1964], No. 32836/65. Headings B7G and B7W. Each blade of a rigid helicopter rotor is attached to the hub by a member which is torsionally relatively soft, to permit pitch changes, and has the same chordwise and flapwise bending stiffness. The member 70 (or 14, Fig. 1, not shown), is laminated, and of X or + section, the ends of the limbs of the crosses having flanges which are bonded to the blade skin. The member, of either shape, merges into a C-section within each blade and forms the main spar. Pitch changes are transmitted to each blade from a swashplate 64 through a torque tube 96 (or 50, Fig. 1, not shown) connected to the blade by a coupling 108 which transmits torque and shear but not bending moments. The blade is arranged to sweep forward, i.e. with the aerodynamic axis ahead of the feathering axis so that for example a downward force on a blade caused by the helicopter rolling, causes the rotor to precess in the same direction. This is effected by variations in the section of the member (Figs. 2-6, not shown) or by providing a cantilever 118 from the hub which is arranged between springs 120, 122 to rotate the blade when the member 70 flexes. The rotor is stabilized by the inertia of the swashplate 64, which may be supplemented by weighted arms either above or below the rotor plane.
Patent GB-1285125-A (GB)
Title: Apparatus for comprising a printer with keyboard for printing data in plain language and simultaneously recording corresponding coded data
Inventor: SAXHOLM ROLF
IPC: B41J3/50
Filed: 1970-07-07
Abstract: 1285125 Selective printing R SAXHOLM 7 July 1970 [11 July 1969] 32839/70 Heading B6F A keyboard printer SK which produces a normal plain language record on an individual card on the platen V and simultaneously a coded record e.g. by punches P1 on to a tape H, has associated with it a memory M to store certain data which is reproduced by a second punch P2 which records the coded information already printed on the card. The punch P1 can operate not only from the keyboard T of the printer SK but from a reader L which reproduces information on further control tapes or punched cards.
Patent GB-880425-A (GB)
Title: Improvements in rotor blades for helicopters and the like
IPC: B64C27/473
Filed: 1958-10-16
Abstract: 880,425. Rotor blades for rotary wing aircraft. PARSONS CORPORATION. Oct. 16, 1958 [Oct. 21, 1957], No. 33059/58. Class 4. A rotor blade comprises a leading edge spar 10, a trailing portion 15, root and tip parts 22, 37 and a manually adjustable trim tab 20. Spar 10 is formed from a shaped plate 11 which is attached to an internal channel member 12, and overlaps the leading portion of the aft portion 15. The portion 15 may be of sheet metal but in the embodiment is moulded glass fibre having a leading web to abut channel 12 and a solid trailing edge portion 18 to which tab 20 is bonded. A cylindrical cavity 19 extends sparwise through portion 18 and a tube 21 extends throughout the span of the leading edge, each being provided at the root end with a threaded bushing for the retention of mass balance rods 34 and 29 respectively. A method of balancing production blades against a standard blade of standard weight and mass moment about either axis of tube 21 or cavity 19 is stated to involve the suspension of each blade about the selected axis and measuring its mass moment thereabout and then inserting a spanwise distributed weight in the opposite leading or trailing edge cavity to bring the moment up to that of the standard blade. A spanwise distributed weight is then inserted into the cavity about which the moment was measured in order to bring the weight of the blade up to the standard weight. Such balancing is stated to lessen need for blade tracking, though this may be achieved by tip weights or whirl test stand by manual adjustment of the trim tabs 20. Specification 871,625 is referred to.
Patent GB-372729-A (GB)
Title: Improvements in and relating to sheet printing machines
IPC: B41F21/05
Filed: 1930-11-04
Abstract: 372,729. Printing-machines. SCHNELLPRESSENFABRIK AKT.-GES. HEIDELBERG, Heidelberg, Germany. Nov. 4, 1930, No. 33125. Convention date, Nov. 16, 1929. Void [Published under Sect. 91 of the Acts]. [Class 100 (i).] Sheet carriers and forwarders; grippermechanism.--In a sheet-feeding mechanism for the oscillating cylinder 18 of a printing-machine of the kind in which the sheets are taken from stops on a feed-board 1 by grippers on an oscillating member 2 and are transferred to grippers 20, 21 of the cylinder 18 as this cylinder moves forward to effect the printing, the member 2 is controlled in such manner as to prevent inaccuracies in the transfer of the sheet even after a long period of usage. To this end toothed gearing is avoided in the oscillating mechanism for the shaft 3 of the member 2, and as the sheet is moved towards the grippers 20 the shaft 3 is controlled by a cam 11 operating on a roller 10 on a lever 9 fixed to the shaft 3 which is spring-controlled by means of springs 16 acting on rods 172 pivoted to arms 17 fixed to each end of the shaft 3. When the roller 10 moves off the high part of the cam 11, levers 6, 7 fixed to the shaft 3 engage abutments 19, 19<1> on the sides of the cylinder 18, and these control the motion of the sheet-transfer grippers while the sheet is being taken by the grippers 20, 21. The members 20 are cut away at parts corresponding to the transfer grippers, and the abutments 19, 19<1> are timed to take control of the grippers at the time they reach these cut-away parts. The member 2 is returned to its sheet-receiving position by the high part of the cam 11.
Patent GB-302151-A (GB)
Title: Manufacture of rubber compositions
IPC: C08J3/21
Filed: 1928-11-13
Abstract: 302,151. Rubber Latex Research Corporation, (Assignees of Wescolt. W. B.). Dec. 10, 1927, [Convention date]. Indiarubber and fibrous plastic compositions.- A rubber-bonded dry moulding composition which is not tacky nor liable to oxidation is obtained by treating granular or fibrous fillers with diluted latex, containing a protective colloid such as haemoglobin and preferably zinc oxide, drying the mass, and comminuting or shredding it. The product may contain as little as 5 per cent of rubber, which is in gel form, or where cords previously treated with a coagulant are used, is coagulated rubber coated with gelled rubber. When fibre is used in the form of cords, the reaction that occurs between haemoglobin and zinc oxide on agitating or warming may be used to thicken the latex to prevent it from penetrating the cords, or when the cords are partly penetrated the reaction may be brought about to prevent further penetration. Apart from cords the fillers may be asbestos, cotton, comminuted old tyre stock, granular material, whiting, talc, etc., and sulphur and accelerators may be included. In an example, haemoglobin (3 parts) is dissolved in diluted latex (8 parts rubber) sulphur is added (3.2 parts) and then litharge zinc oxide, bauxite, barytes and whiting (28.8 parts). The mixture is agitated and warmed to 100 F. and assumes a batter-like consistency. Some water is added and 60 parts of short-fibre asbestos is stirred in. The wet mass is dried in trays in suitably conditioned air at not more than 150 F. and the resulting slabs are disintegrated in a toothed shredding machine. The granular material may be graded by sieves, the finer portions giving stronger products. To form a switchboard panel the granular material is compressed for a few seconds at 2 tons per square inch at a temperature somewhat above the melting point of sulphur, which reduces its bulk to one-third, and the whitish panel is finally cured in an open mould. Black panels may be got by surfacing with a layer containing more rubber, or with a synthetic resin compound.
Patent GB-758202-A (GB)
Title: Improvements in and relating to pliers, pincers, and like tools
IPC: B25B7/08
Filed: 1953-11-30
Abstract: 758,202. Hinges. BERGS FABRIKS AKTIEBOLAG, E. A. Nov. 30, 1953 [Oct. 5, 1953], No. 33227/53. Addition to 737,536. Class 65 (2). [Also in Group XXIII] A modification of the pliers of the parent Specification consists in modifications of the box joint. As shown in Fig. 2, the inner handle member 2 has, on opposite sides, integral pivot studs 3, 31 which engage in recesses in the wall of the box member 1 and in the washer 4. The pivot studs terminate a short distance from the bottoms of the recesses to provide lubrication chambers 41, 42, lubrication ducts 45 being also provided. As shown in Fig. 5, the pivot stud 30 is integral with the washer 4, extends through an aperture in the inner handle member 2 and terminates a short distance from the wall 16 of the box member 1 to provide a lubricating chamber 43, a lubrication duct 46 being provided in the pivot. In another modification the pivot stud extends into a recess in the wall 16 and terminates a short distance from the bottom of the recess. The duct 46 may connect with lateral ducts (not shown).
Patent GB-1533947-A (GB)
Title: Delivery valve for a compressor
IPC: F16K15/14
Filed: 1977-08-09
Abstract: 1533947 Rotary positive-displacement fluidmachines WANKEL GmbH 9 Aug 1977 [10 Aug 1976] 33290/77 Heading F1F [Also in Division F2] A non-return delivery valve 20 for a compressor, which may be of the trochoidal type (as shown), has flexible tongues 25 formed in a tube 27 sandwiched between an outer tube 21 with slots 23 and an inner tube 28 in which stops 29 are formed to limit inward deflection of the tongues. When undeflected the tongues obturate the slots 23, the latter when the valve is in situ being in the flowpath of the compressed gas between outlet ports 14 and a discharge passage 17. The valve may be retained in a bore 15 by a screw-threaded cap 31.
Patent GB-481040-A (GB)
Title: Improvements in or relating to electrolytic processes for the manufacture of the alkali earth metals
IPC: C25C3/02
Filed: 1936-12-04
Abstract: 481,040. Electrolysis. GARDNER, D. Dec. 4, 1936, No. 33312. [Class 41] Alkaline earth metals are produced by electrolyzing anhydrous calcium, strontium or barium sulphide dissolved in a fused normal, anhydrous fluoride or mixture of anhydrous fluorides, suitably of melting point 1000 to 1400‹ C. The fluoride may be that of the alkaline earth metal in question or cryolite, and sodium or potassium fluoride may be added to either. The electrolysis should be carried out in an atmosphere of a reducing and/or inert gas, at ordinary or reduced pressure, and in absence of moisture, nitrogen, and oxygen or oxygen-containing gases, e.g. in an atmosphere of hydrogen or argon. The electrodes may be of carbon, and the lining of the chamber may be of graphite, carborundum, petroleum coke, or a stable carbide, such as zirconium or tungsten carbide, but not of any substance liable to evolve oxygen or oxygen-containing gases at the temperature of electrolysis. The process may be intermittent or continuous.
Patent GB-1240293-A (GB)
Title: Electrophotographic apparatus and method
Inventor: VILLE IVAN BERNARD
IPC: G03G21/00
Filed: 1968-07-12
Abstract: 1,240,293. Cleaning and developing xerographic surfaces. EASTMAN KODAK CO. July 12, 1968 [July 17, 1967], No.33313/68. Heading G2H. A xerographic process includes forming a latent electrostatic image on a surface by applying a sensitizing charge of a first polarity, imagewise exposing the surface, applying toner charged with a second polarity by brushing the surface after exposure in an electric field which urges residual toner having a charge of the first polarity away from background areas and image area and then brushing the surface in the presence of a second electrical field which urges toner, charged with the second polarity, toward the image areas and away from the background areas. In one embodiment, a surface 7, Fig. 1B, carrying a negatively charged image 2 is brushed with a brush 6 connected to a voltage source 8 which produces a field which urges positively charged toner towards the image and background areas while negatively charged toner is urged away from the surface 7. The surface 7 is then brushed with a brush 5 connected to a potential source 10 of,the same polarity but less magnitude than the charge image. In another embodiment, Fig. 2C (not shown) the charged surface (24) of a photo-conductive layer is brushed by a grounded magnetic brush (25) and then by a second magnetic brush (26) connected to a potential source (27) which urges toner from background areas. The process may be applied to a xerographic printer, Fig. 3, including a transparent drum 30 coated with a photo-conductive layer 32 exposed internally by a projector 34 to form a latent image brushed with first and second brushes 35, 36. A brush 40 cleans the inside of the drum after exposure by a lamp 41.
Patent GB-1113626-A (GB)
Title: Improvements in or relating to articulated joints
IPC: F16C11/08
Filed: 1965-08-04
Abstract: 1,113,626. Ball joints. SOC. ANON. ANDRE CITROEN. 4 Aug., 1965 [6 Aug., 1964], No. 33436/65. Heading E2F. The variation in load on the ball 3a of a ball joint is utilised to cause a suction effect whereby grease is drawn from a reservoir to lubricate the joint. In one form, the ball is mounted in a metal or plastics seating 4 secured by a screwed flange 6 in the casing 5 and a conical spring washer 10 supports the seating 4, with variation of load the spring is compressed and allowed to expand alternately thereby drawing grease along passages 9, 5a from a reservoir 8 and forcing it through an orifice 4a. A rubber or plastics cover 7 forms part of the reservoir. In another form, the spring 10 is dispensed with and the lower wall of the seating 4 is concave on its underside and is deformed sufficiently under load to produce the suction effect.
Patent GB-759454-A (GB)
Title: Electric capacitor
IPC: H01G4/26
Filed: 1954-11-19
Abstract: 759,454. Capacitors. STANDARD TELEPHONES & CABLES, Ltd. Nov. 19, 1954 [Nov. 24, 1953], No. 33567/54. Class 37. In a stacked type capacitor which is formed by folding a strip comprising alternate layers of conducting and insulating material into zigzag form, the strip is formed by applying the varnish layer 2 over one face of an aluminium ribbon 1, coating the layer 2 with a metal layer 3 of narrower width than the coating 2 and extending to one edge thereof, applying a second varnish layer 4 and coating this with a further metal layer 5 again of narrower width but extending to the edge opposite from that to which the layer 3 extends. In the embodiment described further alternate varnish and metal layers 6, 7, 8 and 9 are applied as shown, the aluminium ribbon then being dissolved to provide a strip which is folded to zig-zag form as indicated in Fig. 1, the edges of the stack thus formed being coated with metal layers and connected to terminals indicated diagrammatically at A and B. The capacitor thus formed may be placed in a protective container.
Patent GB-956829-A (GB)
Title: Improvements in or relating to cotton reels
Inventor: GILL LORNA MARY
IPC: B65H75/14
Filed: 1962-08-31
Abstract: 956,829. Reels. METAL BOX CO. Ltd. April 18, 1963 [Aug. 31, 1962], No. 33573/62. Heading B8M. A cotton reel is made of organic thermoplastic material, for example polypropylene, and includes a thread-holding element consisting of a lug 11 (Fig. 8), extending from the outer point of a flange 3 and an element 10 extending through the flange from the hollow cylindrical body of the reel. The element on bead 10 is preferably one of several joining the parts of the reel together. The reel may comprise two identical integral half reels-one of which is shown in Fig. 2-or separate flanges and either a single body member or two semi-circular body forming members. The flanges may be hexagonal or circular.
Patent GB-1261034-A (GB)
Title: Dispensing apparatus
Inventor: ROBINS HORACE
IPC: H05K13/02
Filed: 1968-07-15
Abstract: 1,261,034. Orienting articles. JOSEPH LUCAS (INDUSTRIES) Ltd. 20 June, 1969 [15 July, 1968], No. 33621/68. Heading B8S. Connectors 21 are dropped into tray 13 provided with holes 18 and an operator pushes one of the connectors into each of the holes 18 so that it rests on a fixed plate lla. The tray 13 is then moved horizontally over the plate so that an edge 19 beneath the tray engages with the connectors and moves them rightwards so that they fall into the groove 12 aligned in the direction of the groove.