baber/WOPTO huggingface dataset:
Patent GB-872871-A (GB)
Title: Hydraulic pit prop
IPC: F16K17/10
Filed: 1957-09-24
Abstract: 872,871. Pit props. LINSINGEN, von M., [trading as BOCHUMER EISENHUTTE HEINTZMANN & CO.]. Sept. 24, 1957 [Sept. 28, 1956], No. 29978/57. Class 20(2) A hydraulic pit prop has a non-return valve 11 closed by fluid from the pressure chamber and by a spring 12. Pressure in the chamber of the outer prop is transmitted through conduit 9 in the prop base 10 and conduit 21 in the valve housing 14 to hold the valve body 11 against its seating. The valve housing 14 may also be unseated by unscrewing its thread 16 in the prop base 10 with the aid of a lever in hole 17 to allow fluid to escape via conduits 9 and 8 around the conical head of the housing 14. A spring-loaded pressure relief valve 19 is also mounted in the housing 14. The bore 21 may be enlarged conically at its ends and a semi-peripheral groove be formed around the housing 14 to ensure passage of the fluid. The seatings of the housing 14 and valve body 11 may be packed with resilient material.
Patent GB-738397-A (GB)
Title: Apparatus for the transportation of loads and chiefly buildings
IPC: E04G23/06
Filed: 1952-11-27
Abstract: 738,397. Moving buildings bodily. ETABLISSEMENTS CHRISTIANI & NIELSEN. Nov. 27, 1952 [Dec. 8, 1951], No. 30028/52. Class 20 (2). [Also in Group XXX] An apparatus for transporting complete buildings comprises a frame to which the building is secured and which is supported on rail trucks provided with lifting jacks so interconnected that the frame is effectively supported at three points only. A building 1 is transported on four trucks 3 along parallel tracks 2 to the required position. The trucks are mounted beneath a main frame comprising cross-braced girders 9, 10, and mounted on this frame, with the inter-position of inter-connected frame prestressing jacks 15, is an auxiliary framework comprising girders 11, 12 and 13 passing through the walls of the building 1. The trucks are each provided with a hydraulic jack 5-8, the jacks 5 and 6 being independently operated whilst the jacks 7 and 8 are interconnected so that when operated they provide a third suspension point 18. The direction of transport or the orientation of the building may be changed by using a second set of tracks or a transferring circular track (not shown), the trucks being transferred from one track to the other by jacks (not shown) which are inserted .beneath each truck and which, when raised, first remove the weight of the loaded frame from the truck, and then raise the trucks from the tracks so allowing them to be pivoted into alignment with the new trucks.
Patent GB-462757-A (GB)
Title: Means for regulating rectifiers by grid control
IPC: H02M7/15
Filed: 1935-10-31
Abstract: 462,757. Rectifying alternating current. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Oct. 31, 1935, No. 30079. Convention date, Nov. 1, 1934. [Class 38 (ii)] A grid-controlled rectifier 2 supplying a load such as a fly-wheel motor 1 is regulated for constant voltage up to a predetermined value of load current, further increase in load current being prevented by automatic reduction in voltage. The grids are supplied from an A.C. source 6 through an impedance combination 5 of known type wherein the phase of the grid voltage is varied by current in a D.C. control winding 51. The latter is energized in accordance with variations in the voltage across the load 1 in comparison with a source of rectified current comprising a transformer 8 and auxiliary rectifiers 10 substantially as described in Specification 459,443. The transformer 8 is provided additionally with two mutually opposed exciter windings 81, 82, energized respectively through inductances 12, 13 from a current transformer 9 on the A.C. side of the main rectifier 2. The inductance 13 has a saturating winding 14, the current in which is adjusted so that for current values up to the predetermined value at which the voltage characteristic is to be modified the inductances 12, 13 remain equal, and the windings 81, 82 balance each other, thus allowing the comparison voltage provided by the rectifier 10 to remain fixed and the main rectifier to be regulated for constant voltage. Above the critical value of load current the effective value of the .inductance 13 increases and the winding 81 predominates over the winding 82 to vary the comparison voltage in such manner that the output voltage of the main rectifier is reduced. Regulation over a wider range than that provided by the grid control is provided by a step regulator 16 associated with the main transformer 17 and actuated by a relay 18 included in the circuit of the winding 51 as described in Specification 434,456. Other non-linear impedances than the saturable inductance 13 such as a glow discharge lamp or a battery in series with a valve may be utilized to obtain the required discontinuous regulation characteristic.
Patent GB-260789-A (GB)
Title: Improved manufacture of wrought iron
IPC: C21C3/00
Filed: 1925-11-28
Abstract: 260,789. Gedda, G. G. Nov. 28, 1925. Alloys. - Wrought iron containing nickel or cobalt or both is obtained by using as the material from which it is to be obtained pig iron with the addition of or previously alloyed with nickel or cobalt, and obtaining the final product containing the nickel or cobalt by the ordinary operations for the production of wrought iron. In some cases a small amount of copper may be present. An example of the product contains 0.03 per cent of carbon, 0.01 per cent of silicon, 0.07 per cent of manganese,. 0.006 per cent of sulphur, 0.021 per cent of phosphorus, and 3.57 per cent of nickel.
Patent GB-904913-A (GB)
Title: Method of softening water by ion exchange
IPC: B01J49/00
Filed: 1958-09-19
Abstract: 904,913. Softening water. SOC. D'ETUDES POUR LE TRAITEMENT ET L'UTILISATION DES EAUX. Sept. 19, 1958 [Oct. 10, 1957], No. 30120/58. Class 46. In softening water by ion-exchange, the ionexchange material is regenerated by treatment with an aqueous solution obtained by evaporating the water to be treated, or water from another source, so that the ratio of alkali-metal to alkaline-earth metal ions is greater in the regenerating solution than in the water to be treated. The process is particularly suitable for water-softening plants operating in arid areas. As shown, water from a well 1 is delivered by a pump 3 partly to an ion-exchange column 5, from which softened water is withdrawn at 6, and partly to an irrigation system 8. After flowing through and over the soil, and thereby undergoing evaporation so that the ratio of alkali-metal to alkalineearth metal ions is increased, the water is collected in a ditch 11, from which it is discharged by a pump 12 through the column 5, to regenerate the ion-exchange material,
Patent GB-1465093-A (GB)
Title: Storage cathode ray tube having auxiliary coils to correct  non-symmetrical geometry
IPC: H01J29/70
Filed: 1974-07-08
Abstract: 1465093 Cathode ray storage display tubes TEKTRONIX Inc 8 July 1974 [16 Aug 1973] 30137/74 Heading H1D A c.r.t. has auxiliary, Helmholtz type coils 9, 10 to correct asymmetrical geometry of an image caused by electron-electron interaction of writing and storing electron beams and comprises storage face-plate 1<SP>11</SP>, single on-axis electron gun 4<SP>11</SP> producing high velocity electrons for writing, and a single off-axis flood gun 7<SP>1</SP> producing uniformly distributed electrons to effect image retention. Current source 11 is connected so that all flood gun current flows through coils 9, 10. The forces acting on the beam may, apart from the required correction, effect a slight vertical shift which may be compensated electronically.
Patent GB-761318-A (GB)
Title: Improvements in fuel condensers for internal combustion engines
IPC: F02M37/20
Filed: 1954-10-20
Abstract: 761,318. Filters. MITTERER, A. V. Oct. 20, 1954 [Oct. 22, 1953], No. 30143/54. Class 46. [Also in Group XIII] A wire mesh filter 28, Fig. 3, and its holder 29 in the fuel supply line of an I.C. engine are mounted in a finned casing 31 attached to a flange 32 on a base 1 which has an inlet 2 and outlet 3 for the fuel The base 1 also carries an air-cooled condenser 8 (see Group XIII) for vapour escaping from the fuel. Fuel flows from the inlet 2 into the filter 28, and then through holes 5 and 39 to the outlet 3. In another form, Fig. 5, a cylindrical filter 40 is soldered to two discs 41, 42 attached to a perforated tube 47. A spring 48 presses on the bottom disc 42.
Patent GB-723728-A (GB)
Title: Improved slab for marking demarkation lines on pavements
IPC: E01F9/06
Filed: 1953-07-06
Abstract: 723,728. Road traffic signs. NICHOLSON, F. July 6, 1953 [Nov. 28, 1952], No. 30154/52. Class 3 (2). [Also in Group X] A road marking strip comprises a rubber or other plastic or metal cap A to which is keyed a bituminous composition backing M, the cap being formed with a central ridge and ribbed ends, and with projections B and/or inclined ribs C on its upper surface. The strips are secured to a road surface D by bitumen and, in the case of wood blocks, by nailing.
Patent GB-405762-A (GB)
Title: Improvements in or relating to processes and apparatus for surfacing sheet material with pigments, varnishes, lacquers or the like
IPC: B05C5/00
Filed: 1932-10-27
Abstract: 405,762. Coating webs. BROWN, G. M., 6, Elvaston Place, Queen's Gate, London, and RAYMAKERS SYNDICATE, Ltd., 16, Charlotte Square, Edinburgh. Oct. 27, 1932, No. 30164. Addition to 332,190, [Class 140]. [Class 140.] The flotation process of the parent Specification is modified by maintaining the level of the flotation medium with respect to the doctor substantially constant, by supplying, as and when required, additional liquid to the trough, for example, by means of a pump or gravity device. The trough 5 communicates by a pipe 22 with a cistern 23 which is supplied with water by a pipe 24 through a float controlled valve 25. The simultaneous fall of the levels in the trough and cistern is thus counteracted by the entry of water through the valve 25 and consequent flow through the pipe 22. A pipe 27 is provided to by-pass the cistern for flushing and refilling the trough. The shaft 13 carrying the pattern-forming discs 14 is mounted on brackets 35 suspended from a cross bar 36 by vertical screw-threaded spindles 37 rotatable in guides 38 and engaging threaded apertures in the brackets 35. Vertical adjustment of the pattern forming discs is carried out by means of a handle 42 which rotates the spindles 37 through bevel pinions 39, 40. Similar mechanism is employed for adjustment of the doctor 10, as described in Specification 405,761.
Patent GB-950805-A (GB)
Title: Watchcase
IPC: G04B37/00
Filed: 1962-08-07
Abstract: 950,805. Watches. G. MONTESE-CARUSO, and E. BUSSI. Aug. 7, 1962 (Aug 9. 1961]. No.30207/62. Heading G3T. In a watch case the bezel 12, Fig. 2, located in an annular groove 10 in the case-band 2 and is substantially flush with the top of the case-band. The case bottom has an upstanding flange 6 by which it is snap-fitted to the case-band 2. The dial 7 is in one piece with the case-band. The bezel carrying the glass 14 is removable by inserting a pointed tool e.g. a screwdriver in the winding stem passage 8 or in a specially provided passage which is normally closed by a screw and may be at right angles to the bezel. In another example, the bezel carries a row of diamonds. The glass may be flat. Specification 950,806 is referred to.
Patent GB-190862-A (GB)
Title: Improvements relating to bakers' ovens
IPC: A21C9/00
Filed: 1921-11-12
Abstract: 190,862. Huxley, J., Huxley, A., and Huxley, G., (trading as Huxley & Sons, J.), Turnbull, R. G., and Wood, J. Nov. 12, 1921. Baking-trays, greasing; bread.- coating bakers' goods.-A device for spraying oil on to baking tins and also for spraying the tops of baked and unbaked loaves to impart a glossy surface thereto comprises spring controlled levers and cams which are operated by the rollers of the oven chain, a valve b opened by said levers to supply air or steam under pressure from a pipe a to pipes n, o, p, and pipes g, dipping into the reservoir h, through which a flow of oil is induced. A pair of pipes p and g is preferably provided for each tin, the oil issuing from the pipes g being sprayed on to the tins q. The reservoir h is provided with a float-operated supply valve. A lever c, having a roller d which engages the chain rollers e', is pivoted to a spindle 2 and is provided with a pivoted cam s which engages a cam t on the valve-operating rod u, pivoted at u<1>. The roller d is normally in the dotted position and the cam s on the valve side of the cam t. When the roller d is moved by the rollers e' the cams s, t co-operate to open the valve and the lever c is returned by a spring x, the cam s being tripped on reaching the cam t and returned by the spring v. Theduration of the valve-opening is regulated by a. rod m, pivoted at 4 and adjusted by a set screw z and lock nut z<1>, the pivot 2 being thereby raised or lowerd in the slot 3. A waste tray l is provided. According to the Provisional Specification the valve is opened by a valve-lifting rod and the apparatus may be operated by the rollers on a drawplate. The duration of the valve-opening may be varied by lengthening or shortening the valve-lifting rod, and any number of spraying devices may be operated by one roller and lifting rod.
Patent GB-1107793-A (GB)
Title: Reciprocatory internal combustion engine
Inventor: CAYLESS GEORGE ERNEST
IPC: F02B75/18
Filed: 1965-07-16
Abstract: 1,107,793. Crank-chambers; cylinders; valves. FORD MOTOR CO. Ltd. July 16, 1965, No.30238/65. Heading F1B. Each main bearing comprises half-shells 14 supported by upper and lower members 15, 16 which are secured together and to the crank-case 12 by bolts 17. In a modification, Figs. 3 and 4 (not shown), the upper member 15 is integral with the crank-case and has arcuately recessed sides to facilitate insertion of the pistons in the cylinders. Each inlet or exhaust valve 9 is operated by a cam 10a through a rocker 11, the latter pivotting about the head 20a of a stud 20 against which it is held by a spring 21. A lubricant passage (not shown) in the cylinder head communicates by way of a longitudinal bore in the stud 20 with a peripheral groove, Fig. 2B (not shown), in the head 20a. When cam 10a is opening the valve, a passage in the rocker registers with this peripheral groove, thus lubricating the cam. The cylinder head 1a, block 1b and crank-case 12 are formed in one piece.
Patent GB-382079-A (GB)
Title: Improvements in or relating to electric polarity testers
IPC: G01R19/14
Filed: 1931-11-02
Abstract: 382,079. Current detectors.; discharge lamps. PRENTICE, H. B., Primley Park Road, Alwoodley, and TINDALL, W., 20, Spring Bank Crescent, Headingley, both in Leeds. Nov. 2, 1931, No. 30262. [Class 37.] An electric polarity tester consists of a two-electrode neon or other glow discharge tube carried in the handle of a screwdriver, bradawl or pricker, the metal shank of the tool being connected to one electrode, the other electrode being connected to an earthing contact on the handle and insulated from the shank. The electrode 4 is connected directly to the shank or bit 5 or to a chuck, and the external electrode 6 embraces the tube partially and is connected to an earthing plug 8 or pocket clip.
Patent GB-1046895-A (GB)
Title: Stapling machine
Inventor: WHEBLE ALFRED GEORGE
IPC: B65B7/16
Filed: 1964-07-31
Abstract: 1,046,895 Stapling machines. DUNHAM WHITE &. CO. Ltd. Sept. 3, 1965 [July 31, 1964], No. 30285/64. Heading B4C. A stapling machine comprises a housing having a pair of movable clinching anvils 5, 6 adapted to be lifted relatively to a staple driver 15 and the housing base 2 by means 9, 17, 18, Fig. 4 (not shown), the arrangement being such that in operation, initial downward movement of the driver causes the anvils to enter the material of the workpiece whilst simultaneously driving a staple therein, further movement of the driver causing the lifting means to lift the anvils and the material toward the base while driving home and clinching the staple between the anvils and the driver. The anvils 5, 6 are pivoted at 7, 8 on a plate 9 vertically slidable in the housing 1 and connected by links 17, 18 to the driver 15 which may be reciprocated manually. In order to effect the lifting movement of the anvils, a roller 23 is secured to the driver and moves through a slot 24 in the plate 9 and is adapted to actuate cam plate 12 during the latter part of the working stroke. The cam plate is pivoted on a pin 14 adjustably mounted in a slot formed in the front wall 10 of the housing 1. In a modification the pin 14 is adjusted in the slot by means of a flanged plate 39, Fig. 5 (not shown), which may be lifted against the action of a spring 44 and rotated so that, via a pin-and-slot connection 35, 44 with a second flanged plate 34 having cam slots 36, the pin 14 is raised or lowered; the plate 39 is then repositioned by means of a peg 42 engaging in one or other of holes 43 in the plate.
Patent GB-1180744-A (GB)
Title: Plastics Films Heat Sealing Method and Device
Inventor: DICKSON ROBERT WALKER
IPC: B29C65/00
Filed: 1966-07-06
Abstract: 1,180,744. Seaming non-metallic sheet material. BRITISH VISQUEEN Ltd. 31 May, 1967 [6 July, 1966], No. 30288/66. Heading B5K. A heat seal is formed between at least two layers 1, 1<SP>1</SP> of plastics film by pressing together the layers 1, 1<SP>1</SP> between two surfaces at least one of which is heated to a temperature sufficient to effect heat sealing and supplying by conduction additional but less intensive heat on at least one side of the sealing area so as to extend the area of temperature gradient between the heat sealing area and the cold area of the film layers 1, 1<SP>1</SP>. As shown, the layers 1, 1<SP>1</SP> are formed by the walls of a web of flattened tubular film. Heat sealing members 2, 2<SP>1</SP> have secured thereto annealing members 3, 3<SP>1</SP> of lower thermal conductivity than the members 2, 2<SP>1</SP> and comprising silicone rubber blocks which, when the members 2, 2<SP>1</SP> are spaced apart, stand proud of the heat sealing surfaces. A knife 4 is advanced when the members 2, 2<SP>1</SP> are closed to sever the layers 1, 1<SP>1</SP> to form individual bags each with the annealed side of the seam facing the interior of the bag. In another embodiment (not shown), the annealing members are made of rigid material and stand slightly proud of the sealing surfaces but are spring-loaded so as to enable the sealing members to be brought together during sealing. In a further embodiment, the surfaces of the annealing members may be level with the surfaces of the sealing members. The invention is also applicable to machines in which a single heated member works against a surface or in which the film layers are carried by steel bands between heated sealing members. The heat sealing member(s) are made of metal, e.g. mild steel, stainless steel or aluminium. Specified materials for the annealing member(s) are silicone rubber; laminates of paper and thermosetting resins, e.g. phenol formaldehyde resins; glass cloth/epoxy resin laminates; wood-filled or fibre-filled thermosetting resins; hard asbestos and glass-filled nylon. Specified films to be sealed are polythene, polypropylene and polyvinyl chloride films having a thickness of at least 0À006 inch.
Patent GB-734095-A (GB)
Title: Improvements in and relating to the production of linear polyethers
Inventor: REEDER FRANK
IPC: C08G65/48
Filed: 1952-12-01
Abstract: The linear polyethers of the parent Specification, obtained by reacting equimolecular proportions of a dihydric phenol and a disulphonic ester of a diol in the presence of an alkali, have their thermol stability improved by heating them under homogenous conditions with an alcohol, a phenol or an amine in the presence of a base.  Where an amine is used, the amine itself may serve as the base.  If polyether does not dissolve in the alcohol, phenol or amine an additional solvent, e.g. o-dichlorobenzene or anisole is added to render the mixture homogenous.  Heating is preferably effected at 150-250 DEG  C. and is conveniently done under reflux. In examples: (1) a polyether obtained by heating a mixture of hydroquinone, butane-1 : 4-diol-di-p-toluene sulphonate, sodium hydroxide, water and dioxane was stabilized by heating it with meta-cresol containing potassium hydroxide; (2) a polyether obtained by heating a mixture of diphenylol propane, pentane-1 : 5-diol-di-p-toluenesulphonate, sodium hydroxide, water and dioxane was stabilized by heating it with meta-cresol containing potassium hydroxide; (3) the unstabilized polyether of example (1) was heated with the monoethyl ether of di-ethylene glycol containing potassium hydroxide; (4) a polyether obtained by heating a mixture of 4 : 41 - dihydroxydibenzyl, butane - 1 : 4-diol - di - p - toluenesulphonate, sodium hydroxide, water and dioxane was stabilized by heating it with meta - cresol containing potassium hydroxide; (5) the unstabilized polyether of example 1 was dissolved in anisole and heated with a solution of potassium hydroxide in polyethylene glycol (M.W.2000); (6) the unstabilized polymer of example 1 was heated with o-dichlorobenzene and triethanolamine.  Ethylene glycol is also referred to as a stabilizing agent.
Patent GB-1148512-A (GB)
Title: Process for making sintered metal catalyst electrodes
IPC: C22C1/04
Filed: 1966-07-06
Abstract: 1,148,512. Sintered electrodes. ROBERT BOSCH G.m.b.H. 6 July, 1966 [20 July, 1965], No. 30352/66. Heading H1B. [Also in Division C7] Sintered catalyst electrodes e.g. for use in fuel cells, are made by compacting and sintering a powder mixture of a " Raney" (Registered Trade Mark) palladium alloy containing a soluble metal component, nickel and silver followed by leaching out the soluble component of the palladium alloy. The silver is preferably formed in situ :in the mixture by thermal decomposition of silver carbonate. Ammonium or sodium carbonate or bicarbonate may be added to the mixture as a pore former and the nickel may be formed in situ by decomposition of nickel carbonyl. The palladium alloys may be PdAl 3  or PdAl 4  or mixed alloys with Ag, Ni and Mn. The mixture is pressed and sintered or hot pressed and a composite body may be formed by pressing together a powder layer of the mixture and a layer of nickel powder and sodium carbonate and an intermediate layer of nickel, silver carbonate and sodium carbonate. An outer layer of nickel may also be formed. The mixture may also be pressed and sintered on a carrier of nickel foil attached to nickel gauze.
Patent GB-353786-A (GB)
Title: Improvements in bird cages
IPC: A01K31/06
Filed: 1930-10-13
Abstract: 353,786. Bird cages. NICHOLS & SON, Ltd., J., TOMPKINS, G. H., and MOTTERSHEAD, E. H., Cheapside Wire Works, Cheapside, Birmingham. Oct. 13, 1930, No. 30526. [Class 5 (ii).] A bird cage comprises side panels, the lower edges of which are above the lower edges of the cage sides, so leaving the lower parts of the bars uncovered, in combination with a surrounding external guard wall to catch seeds and the like and to deflect them back into the cage beneath the lower edges of the side panels. A cage 1 formed with an open lower end is detachably fixed to a bottom tray 2 with upstanding curved or inclined side walls 3, sheet metal corner pieces 4 being provided on which rests the lower frame 5 of the cage body. Glass panels 6 mounted in guides 7 are supported some distance above the frame 5 but projecting into the tray 2, which is provided with a removable drawer 9 and is fastened to the cage body by means of a wire loop 11 and spring catch 10 on the tray.