baber/WOPTO huggingface dataset:
Patent GB-816399-A (GB)
Title: Improvements in the agglomeration of suspended particles in aqueous media
IPC: C02F1/52
Filed: 1956-04-13
Abstract: A method of improving the agglomeration of suspended particles in aqueous waste media having a biochemical oxygen demand such as organic wastes, comprises adding an inorganic coagulant and one or more synthetic polymeric water-soluble polyelectrolytes having an average molecular weight of at least 10,000 and having a structure derived by the substantially linear ploymerization of at least one monoolefinic compound through the aliphatic unsaturated group. The ployelectrolytes may be homopolymers of acrylic or methacrylic acid or their derivatives such as the alkali metal and ammonium salts of acrylic acid or of methacrylic acid, acrylamide, methacrylamide, the N-alkyl substituted amides, the N-aminoalkylamides and the corresponding N-alkylaminoalkyl substituted amides, the aminoalkyl acrylates, the aminoalkyl methacrylamides and the N-alkyl substituted aminoalkyl esters of either acrylic or methacrylic acids, or copolymers thereof with copolymerizing monomers such as ethylene, propylene, isobutylene, styrene, a -methylstyrene, vinyl acetate, vinyl formate, alkyl ethers, acrylonitrile, methacrylonitrile, vinyl chloride, vinylidene chloride, the alkyl acrylates, the alkyl methacrylates, the alkyl maleates and the alkyl fumarates.  The polyelectrolytes may be used in amounts from 0,1 to 1,000 parts per million, preferably from 0,5 to 5 parts for dilute wastes and from 3 to 240 parts for concentrated sludges.  The inorganic coagulant may be alum, hydrated lime, a ferrous salt, a ferric salt, aluminium sulphate, calcium carbonate or chloride, or zinc chloride, and may be added first.  The invention is exemplified with municipal sewage, activated sludge, Guggenheim process sludge (where the coagulant, ferric chloride, is added in the Guggenheim treatment), mixed domestic sewage and industrial waste, textile wastes from the finishing of synthetic fibres, beet sugar processing waste, tannery effluent, cotton mill wastes, tannery-wastes (treated with 7 lbs. lime per 1,000 gallons prior to the present treatment), laundry waste, starch wastes from wool felt processing, paper de-inking wastes, raw sewage sludge containing industrial wastes, and digested sewage sludge.  The invention may be applied also to oil wastes, stillage, milk, dairy, rubber plant, cornstarch, meat packing and slaughterhouse wastes and fermentation residues.  Reference has been directed by the Comptroller to Specifications 768,662 and 768,665.
Patent GB-623304-A (GB)
Title: Improvements in or relating to arc welding electrode holders
IPC: B23K9/28
Filed: 1947-04-28
Abstract: 623,304. Arc welding electrode holders. GENERAL ELECTRIC CO., Ltd., and BAKER, W. F. April 28, 1947, No. 11323. [Class 39(iii)] [Also in Group XXXVII] An arc-welding electrode holder has within the holder body a switch with contacts 14 carrying the welding current, and the switch is prevented from breaking the welding current by an interlock device operated in dependence on the flow of said current, e.g. by having a part magnetised on flow of welding current through the switch, which may mechanically lock the switch. A spring-pressed rod 3 holds an electrode 4 against a head 2 of anodised aluminium alloy and is retracted by a pin 8 on a switch-operating lever 7. The end of the rod 3 carries a switch contact 9, and the cable 12 is connected to a contact 11. A single moving copper bar 13 has two contacts bridging the contacts 9, 11 and is closed against a spring 16 by engagement of the lever 7 against an insulating thimble 17 on a pin 15. The interlock device comprises a channel-shaped soft non-armature 18 fitted over the moving contact bar 13 to provide pole surfaces 24, 25 co-operating with fixed :pole surfaces 22, 23 of a U-shaped soft iron yoke 20 on each of the fixed contacts 9, 11. An air gap 27 is left between the pole surfaces when the switch is closed to prevent magnetic sticking so that the spring 16 opens the contacts when the lever 7 is released. In Fig. 5 the switch contacts are enclosed by two parts 28, 29 of soft iron of tubular form hinged together below the fixed contacts and having pole surfaces 30, 31 moving together against leaf springs 32 when welding current flows and partly cut away to engage over a rim 33 on the thimble 17, a small gap being left between the poles. To ensure silent operation with A.C. current the armature 18 and yokes 19, 20 may be laminated and carry shading coils. Specification 592,004 is referred to.
Patent GB-167223-A (GB)
Title: Improvements in or relating to continuous cigarette making machines
IPC: A24C5/60
Filed: 1920-04-23
Abstract: 167,223. Fox, C. J. April 23, 1920. Bronzing and the like.-Relates to means for producing bronzing, gold blocking, or like effects in designs, letters or printed matter on the paper web in a continuous cigarette-making machine. The bronzing rollers 12, 13, 15 are actuated by the movement of the printed paper between the rollers 12 and a pressing roller, not shown, and the bronzing powder is applied to the wet print by the roller 12. The powder box or container 1 is fitted with a movable spring-pressure partition 23 regulated by a screw and nut 27, a sliding cover 28, a pivoted scraper 18 and a retaining fence plate 30. A brush and tray are provided under the endless travelling tape under the paper web to collect loose bronzing powder.
Patent GB-289055-A (GB)
Title: Improvements in record-card-controlled statistical machines
Filed: 1928-04-17
Abstract: 289,055. Tauschek, G. April 21, 1927, [Convention date]. Statistical apparatus; transfer mechanism; splitting machine.-In a statistical machine the tens transfer device for each counting wheel is independently disconnectible to facilitate splitting of the counting mechanism into independent sections. The invention is described in a machine using record cards in which each numeral in a column is represented by a number of holes equal to the number of the digit. Each time a brush 15 reads a hole an impulse is given to the appropriate magnet 1, advancing the corresponding numeral wheel 5 one step by means of armature 2, pawl 3, and ratchet 4. When a wheel passes from 9 to 0 a tooth at the end of the transfer lever 6 enters a notch 7 in a disc rigid with the numeral wheel. The lever 6 has a wedge-shaped lug 9 which normally holds a similar lug 8 on a lever 10 against a spring 11. When the transfer lever enters notch 7 the lever 10 is released and its lower end contacts with a plate 12 of which there is one for each numeral wheel on an insulating bar 12'. This prepares a circuit through line 16 to the magnet of the next higher denomination, this circuit being completed, after the card has been read and by a device (not shown) common to all denominations, to effect transfer. A rod 13 restores all tripped levers 10. To disconnect the transfer at any point and split the machine it is merelv necessary to break the appropriate line 16 at the plug 14. The Specification as open to inspection under Sect. 91 (3) (a) also refers to a purely mechanical construction in which the counting wheels may be arranged to slide axially upon a common axis so that any groups of the wheels may be displaced to interrupt the tens transfer mechanism. This subject-matter does not appear in the Specification as accepted.
Patent GB-1309094-A (GB)
Title: Pneumatic control device for a weighing machine
IPC: B65B1/32
Filed: 1970-03-10
Abstract: 1309094 Weighing apparatus AGA AB 10 March 1970 [14 March 1969] 11375/70 Heading G1W A weighing machine 5 has a pneumatic control system which regulates the feeding of one or more substances to a container 1. In its simplest form the system comprises a platform 6 which initially supports the container but which is lowered when the cylinder 8 controlling the platform in depressurized due to the manipulation of a starting valve 23. Simultaneously the stop 7 now pneumatically operated from pressure line 12 locks the counterpoise of the weighing machine in its desired position so that the container 1 is supported by the weighing arm of the machine 5. As the platform 6 is lowered it trips a control valve 10 which permits pressure from line 12 to actuate pressure chamber 13 and feed valve 3 to permit a substance to be fed to the container 1. On reaching the desired weight the weighing machine is balanced and a shut-off valve 17 closed which permits control valve 16 to be spring actuated such that pressure line 12 is connected to an accumulator 21 which in turn operates valve 19 to open the pressure line to the lower end of the starting valve 23 and reset it. Consequently the stop 7 is released and the platform 6 raised to support the container 1 whereby the control valve 10 closes the line to the chamber 13, and the valve 3 is then closed to prevent further supply of the substance. Where two substances are to be supplied an auxiliary circuit is interposed between the valve 16 and the pressure chamber controlling the supply of substances and it is arranged on an impulse from the valves 16 and 17 to cause the supply valves to be operated in succesion so that a quantity of one substance followed by a quantity of the second may be deterred, Figs. 2 and 3 (not shown). To achieve this the counterpoise is adjusted to permit first the one then the second substance to be weighed. Finally the supply is cut off and the system reset. Where a number of substances are to be delivered and weighed in succession a series of auxiliary control circuits each of which becomes operative on completion of the feeding of the substance controlled by the preceding circuit 7 is provided, Fig.3 (not shown).
Patent GB-546333-A (GB)
Title: Metallic coated paper
IPC: D21H19/06
Filed: 1940-07-08
Abstract: 546,333. Metallic coated paper &c. WARREN CO., S. D. July 8, 1940, No. 11383. Convention date, July 12, 1939. [Classes 96 and 140] Metallic coated sheet material simulating metal foil is obtained by applying to a base of paper or treated, i.e. coated and calendered, textile fabric a coating of a suspension of finely divided metal in flake form in an aqueous medium containing water-dispersible adhesive in which coating the ratio of adhesive to metal is so low that the coating after drying but before calendering shows a true pick on a No. 7A Dennision wax, drying the coating and smoothing the coating by heavy calendering, supercalendering or friction calendering. The coated surface may be further burnished, buffed or otherwise polished, e.g. by a buffing operation as described in Specification 542,492. An example is given of the coating of a mineral-coated paper to which is applied, by an air doctor described in Specification 483,998, a suspension of aluminium powder or bronze powder in an aqueous dispersion of polyvinyl alcohol, followed by drying, calendering and buffing. Other specified adhesives are casein, animal glue, soya bean protein, starch, egg albumin, blood albumin and alginates ; a wetting agent, e.g. an alcohol, sulphonated naphthalene derivative or sulphate of a high aliphatic alcohol may be added. For powdered aluminium, the adhesive/metal ratio should not exceed 35/100; for other metals, 20/100. Examples of other coating compositions, with casein and oxidized starch as adhesives, are given.
Patent GB-856015-A (GB)
Title: Improvements in or relating to colour television cameras
IPC: G03B33/00
Filed: 1957-04-08
Abstract: 856,015. Television. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 8,1957 [April 11, 1956], No. 11383/57. Class 40(3). Red, green and blue component images are formed on the targets of television camera tubes 8, 9 and 10 by a V-form assembly of dichroic mirrors 1, 2 in association with plane mirrors 6, 7 and separate objectives 3, 4 and 5 for the three tubes, the arrangement being characterized in that the light path from the first dichroic mirror 1 to the associated camera tube 8 includes first mirror 6 and then the camera objective 3 whilst the light path from the second dichroic mirror 2 to the associated camera tube 10 includes first the camera objective 5 and then the mirror 7. The arrangement is stated to permit a spatially limited and, if desired, symmetrical arrangement of camera tubes 8 and 9 with respect to the main optical'axis X-X on which is located the remaining camera tube 9. By disposing the three camera tubes on axes parallel to each other they may be mounted on a common slide for focus adjustment. A number of objectives of different focal length may be associated with each camera, each assembly of objectives being mounted on carriers 26, 27, 28 arranged for displacement in guides 20 - 21, 22 - 23, 24 - 25 in a direction at right angles to the plane of the figure to move a desired objective in the light path. The carriers are preferably coupled so as to be capable of simultaneous displacement by a single control.
Patent GB-543579-A (GB)
Title: Improvements relating to processes for the manufacture of keto-alcohols
IPC: C07C49/17
Filed: 1940-07-08
Abstract: 543,579. Ketobutanols. ISTITUTO PER LO STUDIO DELLA GOMMA SINTETICA and NATTA, G. July 8, 1940, No. 11410. Convention date, July 8, 1939. [Class 2 (iii)] Ketobutanol-3-1 and 2-methylene butanol-3- 1 are made by condensing aqueous acetone of 30-70 per cent. with substantially one or two proportions of formaldehyde respectively at not above 50 per cent. and at pH 7-10, preferably at pH 8-9. The temperature for making ketobutanol 3-1 should be 25-32‹C. and for 2-methylene ketobutanol-3-1 or a mixture of the two products 30-40 ‹C. The products may be reduced to the corresponding glycols. The Specification as open to inspection under Sect. 91 includes the production of other keto-alcohols. This subject-matter does not appear in the Specification as accepted.
Patent GB-114857-A (GB)
IPC: E04G11/18
Abstract: 114,857. Marks, E. C. R., (Hydraulic Pressed Steel Co.). Jan. 18, 1917. Casting in situ.-Mould plates, Fig. 3, preferably formed of planks 5 faced with metal 6 on the inside, are provided on the ends with channelirons 8 and cover-plates 9 for the rabbets 5<a>, and angle-irons 7 on the top and bottom edges. The plates are held against a framework of posts 1 and sills 35 by clamps 10 and wedges 18, Fig. 4, which are driven in locking-bolts 14 engaging keyhole slots 13 in the posts and formed with tongues 16 and heads 15. The bolts, permanently secured in the clamps, are inserted in the posts and the heads 15 then formed on them to prevent removal from the posts before the plates 4 are secured in place, and the length of the bolt is such that when the head 15 is just inside the slot 13, the clamp and bolt can be turned together through a right-angle. To assemble the parts, the mould boards are placed in position as shown in Fig. 4, and the wedges 18 then driven home to force the legs 10 of the clamps against the channel-irons 8. When the concrete has set, the bolt is loosened, moved to the centre of the slot 13, and then partly withdrawn with the clamps; the clamps and bolt are then turned through a right-angle and the wedge is tightened to secure the clamp. For hollow walls, flat metal ties 19, embedded in the concrete, are provided with loops 20 which are temporarily held by a bolt 22 passed through the post and having a collar 23 on its outer end. The inner mould boards are supported by angle-irons 31 slid able on Z-shaped members 28 welded to the ties 19, and by channelirons 32, 33 which taper in opposite directions; a third channel-iron 34 is welded to the channel 33 and embraces the flange of the member 32. The sills 35, made of notched channel-iron, brace the posts and are provided with short channeliron packing-pieces 37 welded opposite the notches. Bolts 38 are passed through the faces of the pests and through slots on the pieces 37, and receive wedges 39.
Patent GB-115282-A (GB)
IPC: F28D1/04
Abstract: 115,282. Urwick, A. J. May 10, 1917. Straight tubes between headers.-In radiators comprising separate detachable sections connected by hollow caps or terminals to stepped faces on the top and bottom headers or tanks, the sections are held in position by yoke-pieces engaging two adjacent terminals of the sections and secured by bolts located between the sections. The hollow caps are formed with cranked spouts for connexion with apertures in a stepped face in about the central plane of the radiator. In the construction shown, the sections l comprise a series of water-tubes soldered to plates s forming parts of the hollow terminals m provided with spouts t. The inner plates d of the tanks are of cast aluminium, iron, or other metal, and the bodies a are of sheet metal and adapted to fit into grooves e in the cast plates. Solder is run into the grooves and adheres only to the sheet metal, so that the bodies may be readily removed by unscrewing bolts g. The yoke-pieces u, having tongues w and recesses x, are secured by studs r screwed into bosses q on the stepped face, and the joints may be hidden by a hinged or other perforated cover y. The side frame c may be of pressed metal. The joint between the plate s and the hollow terminal m may be made by wire caulking and solder, the ends of the wire being allowed to protrude to facilitate dismantling.
Patent GB-739681-A (GB)
Title: Current regulator for dynamo - electric machines
IPC: H02K23/66
Filed: 1954-04-21
Abstract: 739,681. Exciting dynamo-electric machines; automatic current control systems. BENDIX AVIATION CORPORATION. April 21, 1954 [April 30, 1953], No. 11540/54. Classes 35 and 38(4). A shunt generator having shunt winding 12 and interpole and compensating windings 13 has a current regulating device comprising a carbon pile 18 in the shunt circuit, a control winding 24 to adjust the carbon pile resistance and a compensating resistor 27 so located near the winding 13 that any temperature variation in the latter correspondingly affects the resistor 27 and also the control winding 24 which is connected in the circuit of the resistor 27. The resistor 27 and winding 24 circuit is connected across the winding 13 so that for a given temperature the current in winding 24 is proportional to the P.D. across the winding 13. Now, if for instance, the temperature of the winding 13 rises, the temperature of the resistor 27 also rises and consequently less current would flow in the control winding 24 which in turn would exert less pull on the carbon pile armature 19 and this in turn would cause more current to flow in the shunt winding 12. The resistor 27 is made up of a length of copper wire which is doubled as in Fig. 2 (not shown), and wound into a flat coil 31. Fig. 4 shows how the coil 31 is located and secured relatively to the windings 13. It is stated that the device would also be used to include voltage regulation.
Patent GB-907858-A (GB)
Title: Finned heat exchanger tube and method of producing the same
IPC: F28F1/30
Filed: 1961-03-30
Abstract: 907,858. Tubular heat exchange elements. HAPPEL G.m.b.H., [trading as GEA-LUFTKUHLERGESELLSCHAFT HAPPEL G.m.b.H. & CO. KOMM.-GES.]. March 29, 1961 [March 31, 1960], No. 11649/61. Class 64 (3). [Also in Group XXII] A heat exchange comprises a steel alloy tube provided with a series of fins of steel, copper or brass in which the whole of the external surfaces are coated and the gap between the fin and the tube filled with a thin metal layer by dipping the assembly into a bath of molten tin, zinc or cadmium.
Patent GB-704095-A (GB)
Title: Improvements in cinematograph cameras
Inventor: TOLE DONALD KENNETH
IPC: G03B1/22
Filed: 1951-05-18
Abstract: 704,095. Kinematograph apparatus. SPECTO, Ltd. May 15, 1952 [May 18, 1951], No. 11678/51 Class 97(1) A camera wherein a magazine is inserted or withdrawn in a direction parallel to the path of the film where engaged by a feed claw has means to prevent the claw engaging the film as the magazine is inserted or withdrawn. As shown, the claw 5 is attached to a member 6 forked to embrace a cam 13 which produces the movements for feeding the film 4. The member 6 is pivoted at 18 to a member 15 pivoted at 16 and kept by a spring 17 in contact with a cam 14 which produces the engaging movements of the claw. The member 6 carries a pin 9 which when acted on by the pivoted lever 7 holds the member 15 out of contact with the cam 14 and the claw out of engagement with the film. The lever 7 is, for this purpose, urged by a spring 10 into contact with a pin 12. When the door 3 is closed, after a magazine is inserted, the pin 12 is depressed; the lever 7 retracted and the feed mechanism operates normally.
Patent GB-573436-A (GB)
Title: Improvements in directional short-wave aerials
IPC: H01Q21/10
Filed: 1942-08-19
Abstract: 573,436. Aerials. GENERAL ELECTRIC CO., Ltd., and CLAYTON, R. J. Aug. 19, 1942, No. 11695. [Class 40 (v)] In a short-wave aerial comprising a central conductor 1 fed from one end 3 and surrounded at intervals by conducting cylinders 2 so as tc leave the conductor 1 exposed at intervals at least in one direction the conductor is covered by a sheath (not shown) of a thickness consider. ably greater than the diameter of the conductor and of a dielectric of a permittivity greater than that of the surrounding medium. When the surrounding medium is air, a suitable material for the sheath is poly. thenÚ or polystyrene and its thickness may be equal to the inner diameter of the cylinders 2 so that it serves as a support for these cylinders. The cylinders may be provided with end shields which may be tapered, Figs. 2a-2c (not shown). The spacing should be such that the distance between corresponding points of adjacent radiating sections of conductor 1 is approximately equal to the wave-length of propagation in the aerial. As shown, the lengths of the exposed and unexposed parts of conductor 1 are equal and the conductor is of uniform diameter, but in modifications (i) the length of the exposed part is reduced and that of the cylinders increased and the diameter of the conductor inside each cylinder for a quarterwave-length from the feed end is increased to decrease the characteristic impedance and maintain the current constant, or (ii) each unexposed part of the conductor is divided into two quarter-wave sections of different characteristic impedance, in which case the current decreases progressively from the feed end. To get a lateral directive effect, the exposed portions may be associated with V- shaped screens or a continuous cylinder may be used with spaced apertures at one side. Specifications 489,775 and 543,337 are referred to.
Patent GB-462150-A (GB)
Title: Improvements in or relating to the manufacture of self-locking nuts
IPC: B21K1/70
Filed: 1936-04-24
Abstract: 462,150. Making lock-nuts; stamping. ELASTIC STOP NUT CORPORATION. April 24, 1936, No. 11713. Convention date, April 30, 1935. [Classes 83 (ii) and 83 (iv)] In making lock-nuts of the type described in Specification 228,505, [Class 89 (i)], a fibre or like washer 80, Figs. 9 and 10, is inserted in the cavity 78 of a nut 76 and the walls of the cavity are deformed over the washer, the operation taking place in a press, shown in Fig. 1, having a spring-pressed die 50, with a pilot pin 46 for entering the fibre washer and maintaining the hole of greater diameter than required finally so that when the pin emerges, the compressive force on the washer slightly reduces the aperture. The press head slides in V- grooves in standards 12 and carries a die-holder 38 having an aperture 44 for the die 50 on the top of which rests a pair of pins 58 capable of engaging a knock-out bar 32 to hold back the die and allow the pilot pin to be pulled out of the fibre washer. Thereby the nut is stripped and is knocked aside by a pivoted lever engaging a cam plate. The bed block 64 may be pneumatically mounted.