baber/WOPTO huggingface dataset:
Patent GB-247940-A (GB)
Title: Improvements in and relating to the manufacture of sulphonic acids and the salts thereof from mineral oils
IPC: C07C309/62
Filed: 1926-02-09
Abstract: 247,940. Schestakoff, P. I. Feb. 17, 1925, [Convention date]. Mineral oils, purifying. - Mineral oils are treated with sulphuric acid or a mixture of sulphuric acid and sulphuric anhydride, the sulphonated oil separated, and treated with acetic acid or a water-soluble ester thereof, e.g. the ester with methyl alcohol or glycerine. The sulphonated oil may be treated with water or aqueous alkali solutions, to obtain a solution of the sulphonic acids or sulphonates, before treating with acetic acid or water-soluble ester. In examples : (1) Spindle oil obtained from Baku naphtha is treated with sulphuric acid and sulphuric anhydride, separated from the acid resin formed, and the sulphonated oil is then heated with methyl acetate to deposit the sulphonic acids; (2) Solar oil distillate is similarly sulphonated and neutralized with dilute caustic soda solution. The layer containing the sulphonates is separated and treated with sodium chloride, and the mixture of sulphonates and mineral oil thereby obtained is heated with acetic acid, when the oil separates out.
Patent GB-113968-A (GB)
Title: Improvements in Wire Netting.
IPC: B21F27/06
Filed: 1918-03-04
Abstract: 113,968. RiviÞre Ú Hijos, F., [Firm of]. March 3, 1917, [Convention date]. Addition to 101,093, [Class 83 (iv), Metals. Working]. Wire netting in which the connected portions are twisted in opposite directions, the two twists being separated by an untwisted portion as described in the parent Specification, is reinforced by longitudinal wires 27, Fig. 1, intertwisted with the mesh wires 24, 25. In manufacture, the reinforcing wires pass between the parent slides 1, 2 of the machine described in the Specification, so as not to partake of any of the movements necessary in the formation of the hexagonal meshes. One of the two guides 1, 2 may remain stationary, double the travel being imparted to the other guide, and the pinions described in the parent Specification may be replaced by divided pinions. To facilitate the withdrawal of the fabric the pins 38 on the roller 34 are bifurcated to embrace the wires 27 and bent as shown in Figs. 5 and 6.
Patent GB-716144-A (GB)
Title: Improvements in turbine blades and their method of manufacture
IPC: F01D5/18
Filed: 1950-05-24
Abstract: 716,144. Turbine blades. STALKER, E. A May 24, 1950, No. 3826/52. Divided out of 716,105. Class 110(3) [Also in Group XXII] A hollow turbine blade has a line of openings formed along the leading edge, and in front of the openings is a corresponding number of small plates inclined to the axis of the blade and so spaced as to form discharge slots through which cooling fluid issues over the external surface of the blade from the hollow interior. The blade is formed from a metal blank 60 which has thickened portions 62, 64 corresponding to the leading and trailing edges respectively. The portion 62 is then cut to form a plurality of spaced plates 68 and openings 70 are cut through the blank between the plates, and the plates are then bent downwardly to form narrow discharge slots 20. The blank is then formed into an aerofoil shaped blade and the thickened portion at the trailing edge cut off to form a sharp edge. Specifications 652,870 and 679,467 are referred to.
Patent GB-548058-A (GB)
Title: Improvements in or relating to glass substitutes
Filed: 1941-03-20
Abstract: 548,058. Compound sheet material. DUFAYCHROMEX, Ltd., and WICKHAM, A. R. March 20, 1941, No. 3838. [Class 140] A reinforced glass substitute is made by casting a transparent or translucent plastic sheet against a smooth continuous support such as a drum or band. applying a reinforcement to the outer surface of the sheet so as to form a unit having on one side a continuous surface of the plastic and cementing thereto a sheet or sheets of the same or a different plastic. The plastic may be a cellulose derivative, e.g. cellulose acetate or a synthetic resin. Cementing may be effected with a solvent, e.g. acetone, which may contain a plasticizer such as dimethyl phthalate. The 'reinforcement may be cotton net or a lattice of crossing threads, bands or ribbons adhered at the crossing parts. The product may be secured to a frame of hard wood strips and used as a glazing unit.
Patent GB-404473-A (GB)
Title: Priming device for centrifugal, helico-centrifugal or screw pumps
IPC: F04D9/02
Filed: 1933-02-08
Abstract: 404,473. Rotary pumps. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI, 91, Rue de l'Enseignement, Brussels. Feb. 8, 1933, No. 3857. Convention date, Feb. 11, 1932. [Class 110 (i).] In an arrangement for priming a centrifugal, helico-centrifugal, or screw pump, the suction pipe 18 is arranged as a siphon connected to the inlet 5, and a mixer 8 is placed at the end of the bye-pass 7 in the vicinity of the impeller 1. At starting, the pump and pipes are filled with water to the level of the point A at the top of the siphon and the pump is then rotated. The water passes up the delivery tube 4, through the bye-pass 7 and the mixer 8 so that a mixture of air and water then passes through the pump. The air passes upwards through the delivery tube 4 while the water passes again through the bye-pass 7 and the mixer 8. This action is repeated until all air is withdrawn from the pipe 18, and the flow of liquid in the delivery pipe 4 closes the valve 9 at the end of the byepass 7. The mixer may be a pipe bent in the direction of movement of the water, and it may have a cone in front of it so that the water strikes the point of the cone and is converted into spray. In the modification shown in Fig 8, the leakage water round the eye ring 21 of the impeller entrains air from the suction pipe, and the mixer 8 is omitted.
Patent GB-1095723-A (GB)
Title: Improvements relating to lockets
Inventor: VINCENT CHARLES BASSETT
IPC: A44C3/00
Filed: 1965-01-29
Abstract: 1,095,723. Lockets. C. B. VINCENT & CO. Ltd. Jan. 26, 1966 [Jan. 29, 1965], No. 3955/65. Heading A3H. A locket has an eye 33 for a chain mounted on a stem to rotate in an opening at one end of the locket. The locket may comprise two concentric apertured parts with frustro conical ends. Each part has a flange 31, 32 for rotating one member about the other to open or close the apertures. The locket may comprise cylindrical telescoping parts which are separated to allow insertion of an article into the locket. The parts may be partly separated and provided with an opening for the insertion of the article. The locket may have a hinged section or a detachable end part.
Patent GB-690250-A (GB)
Title: Improvements in or relating to a fluid-powered engine
Inventor: BELLOWS LEWIS F R
IPC: F01L25/00
Filed: 1951-02-19
Abstract: 690,250. Engine valve-gear; fluid-pressure engines. BELLOWS CO. Feb. 19, 1951, No. 3961/51. Classes 122(ii) and 122(iii) A fluid pressure engine comprises a housing H having an inlet opening I and exhaust vents 12, means for opening and closing the vents, a piston 15 in the housing comprising a head 17 and oppositely directed skirts 16 and having a passage therein open to the inlet opening I and communicating through outlet openings 18 with the vents 12 and means within the passage and carried by, and movable relative to, the piston for closing one or other of the outlet openings 18. A ball valve 21 which co-operates with and projects through the ports 18 is resiliently mounted by coil springs 22 in a valve chamber 19 in the piston head 17 connected by a passage 20 with the inlet opening I. Each exhaust vent 12 can be closed by a valve member comprising a rubber disc 40 attached to the spring-loaded core 38 of a solenoid 35 housed in a slotted casing 36 within the piston skirt and connected to an outside electrical source through a wire clip 41 and insulated plug 42. With the piston in the position shown, the ball valve has been engaged by the left hand coil casing 36 to open the left hand port 18 and both ports 18 are open. Both vents 12 have been momentarily closed and the fluid pressure across the piston balanced but as shown the right coil 37 has been energised by a conventional timing means in the solenoid circuit, to open the right vent to atmosphere whereupon the pressure differential across the piston first forces the ball valve to the right to close the right port 18 and then moves the piston to the right. Toward the end of the piston travel the ball valve is unseated by contacting the right coil casing 36, the piston completes its travel when it engages the right coil casing and in this position the ball valve is centralised and both ports 18 are again open. Right coil 37 is then de-energised and right vent 12 closed by its spring 39 thereby balancing the pressure across the piston head through ports 18. The left coil 37 is then energised, left vent 12 is opened and the pressure differential created .moves the ball valve to close the left port 18 and the piston moves to the left until it reaches its original position, the left coil is de-energised and the right coil energised to recommence the cycle. The piston actuates a slide valve 25. In a modification the plugs 42 are fitted in the housing end walls 13 and electrically connected to the coils 37 whose casings 26 are unslotted and provided with clearance between their ends and the end walls 13 for the passage of fluid. In a further modification the exhaust vents are opened and closed by spring-loaded valves mounted in the housing end walls and operated either mechanically or manually.
Patent GB-368031-A (GB)
Title: Improved process and apparatus for the disposal of ash in furnaces
IPC: F23J1/00
Filed: 1931-02-10
Abstract: 368,031. Pulverulent-fuel furnaces. INTERNATIONAL COMBUSTION ENGINEERING, 200, Madison Avenue, New York, U.S.A.-(Assignees of Wood, W. R. ; Aldwych House, Aldwych, London.) Feb. 10, 1931, No. 4162. Convention date, July 7, 1930. [Class 51 (i).] In a method of disposing of ash which is carried in suspension from a combustion chamber of a furnace installation, more particularly a furnace burning pulverized fuel, the ash is returned to a combustion chamber of the installation having a slagging bottom in such a manner that it will be retained and any combustible present will be burnt. To this end the ash is preferably returned below the level of the burners and in a wetted condition. As shown, the bottom of the combustion chamber is formed by rows of tubes 10, 11 sufficiently close to retain and form a bed of precipitated particles, the upper portion of which bed forms slag under the action of the intense heat. By means of a conveyer 15 and water sprinkler 16, ash is returned to the combustion chamber in a wetted condition beneath the level of the burners 9 and is retained by the molten slag.
Patent GB-451119-A (GB)
Title: Improvements in or relating to joints and couplings for pipes and tubes for the conveyance of corrosive media
IPC: F16L33/22
Filed: 1935-02-08
Abstract: 451,119. Pipe joints. SWINDIN, N., and NORDAC, Ltd., Rosslyn Crescent, Wealdstone, Harrow, Middlesex. Feb. 8, 1935, No. 4174. [Class 99 (i)] In a joint of the kind in which a pipe of rubber or containing rubber has its flared end clamped on to a tapered union-plug by a sleeve and coupling nut, the plug, sleeve and nut are formed from or coated with a corrosion-resistant material comprising rubber, preferably the material known under the Registered Trade Mark " Vulcoferran." Two pipes are connected by a double conical plug 29, sleeves 34, 35 and a nut 36 screwing on to sleeve 34. The coned plug is formed as shown to connect pipes of different sizes. In joining a pipe to a valveplate 40, Fig. 3, a metal nipple 42 having a tapered extension 44 is screwed into the valve plate, the nipple and rear side of the plate having a covering 45 of corrosion-resistant material.
Patent GB-699361-A (GB)
Title: Ignition timing apparatus for internal combustion engines
Inventor: DOWNING ERIC WILLIAM
IPC: F02P5/14
Filed: 1951-02-21
Abstract: 699,361. Interrupters. LUCAS (INDUSTRIES), Ltd., J. Feb. 7, 1952 [Feb. 21, 1951], No. 4196/51. Class 38 (v) [Also in Group XXVII] In an ignition interrupter of the kind in which the ignition timing is automatically adjustable in response to variations of depression or pressure in an engine inlet manifold and having combined therewith a timing unit, such as a slidable member f, chamber h, diaphragm i and a rod r which is loaded by a spring g and is movable as a whole by depression or pressure in the manifold, the rest position of the unit is determined by a stop s under the control of an element t responsive to atmospheric pressure. The interrupter contacts b which are actuated by the cam a are mounted on an angularly movable plate c whilst in the interrupter housing e is provided the hollow slidable member f which terminates at one end in the chamber h that is divided by the spring-loaded diaphragm i. Chamber h is contained in a larger chamber k which is also divided by a diaphragm m that may consist of an extension of diaphragm i; the right-hand part of each chamber is open to atmosphere through orifices p and q whilst the left-hand chamber parts are connected to the inlet manifold, not shown, through openings o and connection n. The rod r, which has one end attached to diaphragm i, extends along member f and is pivotally connected at the other end to the plate c. The member f is supported at one end by the wedgeshaped stop s that is carried by an elastic evacuated capsule t in a chamber u open to atmosphere; upon temporarily closing the throttle, not shown, any change in atmospheric pressure since the last closure of the throttle will effect a change in the position of the stop s and hence the ignition timing. The apparatus may also be used in conjunction with coil or magneto ignition.
Patent GB-1081692-A (GB)
Title: Improvements in or relating to internal combustion engine combustion chambers
IPC: F02B23/06
Filed: 1964-01-31
Abstract: 1,081,692. Combustion chambers. J.G. GILES. April 26, 1965 [Jan. 31, 1964], No.4242/64. Heading F1B. The mouth of a combustion chamber 1 in the piston is closed near top dead centre by a plug 5 on the cylinder head, the remaining air entering the chamber through subsidiary ducts 2. The ducts 2 may be formed in the piston or in the plug 5 and may comprise passages through the piston crown or open-topped channels.
Patent GB-1373032-A (GB)
Title: Methods and apparatus for the manufacture of mouth-piece cigarettes
IPC: A24C5/47
Filed: 1971-02-09
Abstract: 1373032 Filter cigarette-making machines MOLINS Ltd 8 Feb 1972 [9 Feb 1971] 4284/71 Heading A2C In an apparatus for uniting abutted assemblies of cigarettes and mouthpiece portions, a uniting band 15, with a molten coating of a hot melt adhesive, is rolled around an abutted assembly along a surface 19 the temperature of which is maintained low enough to cool the adhesive to cause it to set. As shown, the assembly is rolled between a rolling drum 11 and the surface 19 of a rolling plate 18. The plate 18 may be cooled by having fins, and a flow of cooling air may be provided; alternatively, a cooling liquid could be passed through it or it could be refrigerated. Molten hot melt adhesive is applied to a continuous web of uniting band material, the web is delivered at a temperature below the melting point of the adhesive onto the rolling drum 11 which is heated by elements inserted in passageways 35, the web is cut to form a succession of uniting bands- 15, and the adhesive coating on the bands 15 is reactivated by the heated drum surface 11.
Patent GB-1181421-A (GB)
Title: Improvements in and relating to Coating Electrical Conductors
Inventor: OXFORD KEITH ERIC
IPC: B23K1/008
Filed: 1967-01-30
Abstract: 1,181,421. Soldering. LEAR SIEGLER Inc. 30 Jan., 1967 [25 Feb., 1966], No. 4371/67. Heading B3R. [Also in Divisions C7 and H1] An adherent surface layer of solder or other alloy is applied to the conductors of a printed circuit board by exposing the metal of the conductors to the molten alloy, so that a coating of liquid alloy forms on the metal and the surface layers of the metal mix with the alloy to form a band of material intermediate in composition between them. Excess alloy is flushed away with a spray of liquid which is immiscible with the molten alloy and is maintained at a temperature above the melting point of the applied alloy but below that of the mixed band between it and the metal of the conductors. A printed circuit board with copper conductors may be dipped into a bath of tin-lead solder, kept in it for 3 to 5 seconds, during which time the copper surface unites with the solder, and have excess solder removed with a spray of hot polyethylene glycol either alone or accompanied by one or more anti-oxidants such as hydroquinone or mercaptobenzothiazole. Printed circuit boards suitable for use with the invention may be of laminated glass, epoxies, phenolic resins or paper epoxies. Use of the hot liquid spray to remove excess applied alloy or solder is stated to be particularly applicable to those printed circuit boards in which metal eyelets in holes in the board or internally-plated through holes are intended to receive the terminal pins of components to be mounted on them. The hot liquid may be soluble in water or alcohol, so that its residues can be easily rinsed from the printed circuit board when the removal of excess solder is complete.
Patent GB-235500-A (GB)
Title: Improvements in knives with separable blades
IPC: A61B17/32
Filed: 1925-02-17
Abstract: 235,500. Goldman, G. Jan. 17, 1925, [Convention date]. Thin - blade handles with clamping devices. - A knife with interchangeable blade for surgical &c. use comprises two handle portions 7, 8, slidably pivoted at 13a and gripping a blade 1 between their ends by sliding a cam slot 17 of the part 8 under the head of a pin 11. A keyhole slot in the blade fits over thepin 11, its rear end abuts against a shoulder 10 formed on the part 8 and the back of the blade bears against an overhanging bevelled flange 15, Fig. 4, which forms a guide rest for the forefinger. The sides of the slot 14 are tapered to wedge against the head of the pin 13<a>. Specification 225,888 is referred to.
Patent GB-269703-A (GB)
Title: Improvements in locks
IPC: E05B37/02
Filed: 1926-02-16
Abstract: 269,703. Olinger, J. Feb. 16, 1926. Locks, permutation; padlocks.-A lock comprises a locking bolt 4 urged by a spring 8 and carrying a forked member 20, 21, the legs of which must enter holes in a number of rotatable discs 29 - - 32 mounted on a cylindrical member 5 surrounding the bolt 4. Each disc 29 - - 32 is separately rotatable by a spring-pressed radial pin 39 having a T head which engages frictionally against the lock casing to hold the disc in set position. When the lock is released, these pins are turned and the heads are withdrawn by their springs into the casing. The proper setting of the discs 29 - - 32 brings radial holes 35 in the peripheries opposite the pins 34 on a lever 16 which is then rocked by the spring 14 to withdraw the tooth 15 from the bolt 4 which may then be moved and held by the click 13, the fork members 20, 21 entering the disc 29 - - 32 axially. The shield 26 is simultaneously rocked about its pivot so as to hide the figures on the rotatable discs. On the closing of the lock a one-way pawl 25 on an arm 23 of the forked member on the bolt replaces the tooth 15 and withdraws the pins 34 from the discs 29 - - 32 which are then reset by springs to their normal position. False shallow holes 35<1> are provided in addition to the holes 35 of effective depth in all the discs except the last on the right. The setting should be done from the left since if the right disc is set first the pins 34 on the lever 16 may engage with holes 35<1>. The lever can be released from such engagement by means of any instrument inserted in an oil hole 41 to depress the lever.
Patent GB-422742-A (GB)
Title: Process for the separation of oils from mixtures thereof with solid matter and asphalts, obtained as residues in the destructive hydrogenation of distillable carbonaceous materials
IPC: G02B9/02
Filed: 1934-02-10
Abstract: Oils are separated from the residues obtained in the destructive hydrogenation of distillable carbonaceous material by agitating the residues, at an elevated temperature, with an addition of aqueous dilute acids or aqueous solutions of acid salts until an acid reaction is obtained and some or all of the asphalt and all of the solid constituents and water separate from the oils.  According to an example, the residue is added to dilute sulphuric acid during 3 hours stirring, a temperature of 90 DEG  C., being maintained.  After a further 2 hours stirring at the same temperature, a good separation of oil is obtained.  U.S.A. Specifications 1,840,287 and 1,881,691 are referred to.
Patent GB-200451-A (GB)
Title: Improvements relating to the packeting of cigars, cigarettes and like articles
IPC: B65D85/12
Filed: 1923-02-16
Abstract: 200,451. Braden, W. E. Feb. 16, 1923. Packing cigars, cigarettes, &c.-Cigars, cigarettes, &c. F are packed by tying them by a band G around a post C which is provided with end tenons D to be inserted into holes in square or circular plates E of such dimensions as to fit into a box A.
Patent GB-872454-A (GB)
Title: Improvements in or relating to tape spools
Inventor: BRIAN-DAVIS REGINALD
IPC: G11B23/02
Filed: 1958-02-12
Abstract: 872,454. Kinematograph apparatus. INTERNATIONAL COMPUTORS & TABULATORS Ltd. Jan. 6, 1959 [Feb. 12, 1958], No. 4586/58. Class 97(1) [Also in Group IX] A spool for winding or unwinding a roll of film comprises a side plate to which is secured a fixed member for receiving a driving shaft, two or more arcuate members disposed around, and movable radially relative to, the rotational axis of the spool and resiliently urged towards an outer position to form a hub for the film and manually retractable towards an inner position to release the wound film. As shown, side plates 1 and 2 are screwthreadedly, connected to members 3 and 4 by studs 6 and 15 coacting with radial and tapered slots 7 and 14. As a bushing 9 (secured to plate 1) is positioned on a shaft 13, a chamfered portion and a slot therein engage a projection on one arm of a bell-crank lever 11 to rock the lever and lock the other arm against the head of one stud 6. The film may be wound on a removable gripper 17 under a tag 18 of which, or under a similar tag on member 3 or 4, one end of the film is  anchored. The roll is released by removing plate 2 and pressing the studs 6, and therefore the member 3 and 4, inwards against springs 8: inward movement of studs to their limit frees the spool from the shaft 13. The members 3, 4, may be held in winding position by a cam or locking lever (not shown). The plate 2 may be dispensed with and the diameter of the plate reduced, if guides are provided for winding film on or off the spool. The lever 11 is unnecessary if bushing 9 is permanently secured to shaft 13. Slots 14 may be replaced by spring-catches (not shown). Specification 864,756 is referred to.