baber/WOPTO huggingface dataset:
Patent GB-1305356-A (GB)
Inventor: ERHARD ALBERT EDWARD
IPC: C01G33/00
Filed: 1970-02-06
Abstract: 1305356 Niobium recovery MOLYBDENUM CORP OF AMERICA 6 Feb 1970 [6 Feb 1969 17 Dec 1969] 29456/72 Divided out of 1303531 Heading C1A Niobium values are recovered from niobium concentrates by baking the concentrate with sulphuric acid, leaching with water, forming an alkali metal/niobium complex or an ammonia/ niobium complex in the leached concentrate with excess (i.e. pH greater than 7À0) ammonium or excess alkali metal hydroxide, leaching the concentrate with water and/or HCl, and recovering niobium values from the aqueous stock solution thus produced. The sulphuric acid baking may be carried out at 175-400 C. Ammoniation may be effected at 25-110 C. using 0À1-1À0 part ammonia per part niobium, and may be carried out simultaneously with the first leaching. The ammoniated concentrate may be treated with 6-14 molar HCl (e.g. 4À0-5À0 moles per mole niobium) at 20-110 C. Niobium oxide may be recovered from the aqueous stock solution by evaporating, cooling, dilution with water, filtration and hydrolysis. The product may be calcined at 350-1000 C.
Patent GB-389416-A (GB)
Title: Improved machine for casting stereotype plates and the like
IPC: B41D3/00
Filed: 1932-10-21
Abstract: 389,416. Casting stereotype &c. SCHAFLEIN, K., 2, Kornhausstrasse, and MASCHINENFABRIK WINKLER, FALLERT, & CO. AKT.-GES.; 35, Wylerring- strasse, both in Berne, Switzerland. Oct. 21, 1932, No. 29473. [Class 100 (ii).] In a machine for casting stereotype plates and for backing electrotypes, comprising a metal pot a having an outlet slot b, a mould adapted to be moved against the pot with its inlet in register with the outlet slot b, and a valve or cock turning in bearings c to open and close the outlet slot b to separate, when closed, the cast plate from the contents of the pot. wedge-shaped thickenings e are provided on the wall of the pot at the ends of the outlet slot to prevent the pot from cracking at the ends of the slot during the operation of the cock. The mould is correspondingly shaped at the ends to enable it to be fitted close to the pot outlet.
Patent GB-263766-A (GB)
Title: Process and apparatus for the blowing and moulding of articles in silica glass and new products resulting therefrom
IPC: C03B23/07
Filed: 1926-11-22
Abstract: 263,766. Quartz et Silice. Dec. 20, 1925, [Convention date]. Blowing; forming silica-glass articles.-A process for forming articles of fused silica, or of glass having a high content of silica, consists in softening a tubular blank in a furnace, and in subjecting this blank, immediately it is removed from the furnace, to blowing in a mould, or in free air, to bring it to the required shape. The apparatus comprises a tubular furnace f, a mould b arranged beneath the furnace, a pair of shears c which work against the underside of the mould, and another pair of shears d, which are situated above the mould. The silica, blank g is supported by a balanced beam h which is provided with an index pointer l. A flexible tube o connects the blank with a reservoir m of compressed air, and a three-way cock n connects the interior of the blank either with the air supply or with the atmosphere. The furnace f may be heated by oxyhydrogen blowpipes, or by an element e which is heated by the passage of an electric current or by induction. An oscillating circuit may be combined with the apparatus for heating the furnace by high-frequency induction. The mould may be made of a metal or alloy usually employed for glass moulds, or it may be made of nickel or graphite, and it is heated electrically, preferably by induction. In operation, the movement of the balanced beam h indicates the softening of the blank, and the operator lowers the blank into the mould and closes its lower end by means of the shears c. Air is admitted to the blank to blow it to shape, and the shears d are closed. These shears do not sever the blank but crush it sufficiently to allow the finished article to be broken off. A fresh section of the blank is heated while the softened part is being blown. In a modified construction, the beam h is arranged beneath the mould and supports a member which is in contact with the lower end of the blank. This member, when lowered, forms a bottom to the mould cavity and allows closed articles to be blown. With this construction, the shears c are dispensed with, and the article may be blown in free air without using the mould.
Patent GB-1081308-A (GB)
Title: Electrodeposition of nickel
IPC: C25D3/12
Filed: 1966-06-30
Abstract: In electro-deposition of nickel from an aqueous acid bath containing 55 to 110 g/l Ni as nickel sulphamate with or without nickel sulphate, the molar content of sulphate ion being not more than that corresponding to the provision of half the nickel content as nickel sulphate, up to 25 g/l chloride ion, and boric acid as a buffer at a temperature between 38 DEG  and 77 DEG  C. with a cathode current density up to 300 amps/sq.ft., the electrolyte is subjected to anodic oxidation with a subsidiary polarized anode of insoluble material operated at a potential sufficient to liberate oxygen from the electrolyte and so that at least 0.25% of the total plating current passes through the subsidiary anode.  The subsidiary anode may be located in the nickel deposition bath or in a subsidiary tank through which the deposition bath solution passes in an external circulation path. The subsidiary anode may be of Pt or platinized Ti or Ta, or of activated Ni containing 0.02 to 0.04% by weight of sulphur.  The bath pH is maintained in the range of 4 to 4.5.  The stress resulting in the nickel deposits for different operating conditions is specified. Semi-bright deposits of zero stress may be produced.  By increasing the anodic oxidation, brighter stressed deposits are obtained.
Patent GB-444101-A (GB)
Title: Improvements in cutters for use in the manufacture of wood-wool
IPC: B27L11/04
Filed: 1935-10-25
Abstract: 444,101. Cutters for making woodwool. BANG OR, 0., Moum, near Fredrikstad, Norway. Oct. 25, 1935, No. 29487. [Class 145 (i)] In a cutter assemblv for making wood-wool a backing edge is interposed between the planing iron and the cutter plate, so as to control the cut of the planing iron. A cutting plate 3, Fig. 1, having a serrated edge is secured to the planing iron 1 by a cap iron 2 and screws 5; the lower edge of the cutting plate 3 bears on the eccentric heads 7<1> of screws 7 whereby it can be adjusted, A plate 6 forming the backing edge is interposed between the planing iron 1 and cutting plate 3, being adjustably secured to the planing iron 1 by screws. In a modification, Fig. 4, the backing edge is formed integral with the cutting plate.
Patent GB-1485730-A (GB)
Title: Rail wheel
IPC: B60B17/00
Filed: 1975-07-14
Abstract: 1485730 Rail vehicle wheels FRIED KRUPP HUTTENWERKE AG 14 July 1975 [10 Aug 1974] 29487/75 Heading B7C A rail vehicle wheel has a body comprising two axially spaced discs 14, 15; a hub 1 with a radial flange having opposed faces 4, 5 which are of concave section as viewed from the outside of the wheel and engage correspondingly curved radially inner peripheral regions 18, 19 of the discs 14, 15; and a rim 3 with a radial flange having opposed faces 6, 7 which are of concave section as viewed from the outside of the wheel and engage correspondingly curved radially outer peripheral regions 20, 21 of the discs 14, 15. The hub 1 and rim 3 may be provided with steps 8-11 abutting respective peripheral edges of the discs 14, 15 and the peripheral regions 18-21 of the discs may be secured to the respective flanges by welding, adhesive or screws. The wheel body may be corrugated so as either to have circumferentially alternate radially disposed ribs and recesses (Fig. 2, not shown) or to have alternate concentric annular ribs and recesses (Fig. 3, not shown). The space between the discs 14, 15 may be filled with material 26 to reduce noise in use.
Patent GB-174418-A (GB)
Title: Improvements in the generation of oxygen gas
IPC: C01B13/02
Filed: 1920-10-20
Abstract: 174,418. Levy, L. A., and Davis, R. H. Oct. 20, 1920. Respiration, appliances for promoting.-A mixture for generating oxygen by contact with water, for use in respirators, consists of sodium perborate (preferably the monohydrate) and about 1 per cent of potassium permanganate or manganese dioxide. Reference has been directed by the Comptroller to Specifications 4500/04, [Class 90, Non-metallic elements], 23165/06, and 7062/10, 10066/10, 24641/10, and 18987/11, [all in Class 90, Non- metallic elements].
Patent GB-379901-A (GB)
Title: Improved method of making groups of insulated electric conductors
IPC: H02K3/32
Filed: 1931-10-27
Abstract: 379,901. Dynamo-electric machine insulation. SIEMENS - SCHUCKERTWERKE AKT.-GES., Siemensstadt; Berlin. Oct. 27, 1931, No. 29800. Convention date, Nov. 1, 1930. [Class 35.] Insulated conductors are formed by applying U-shaped insulation to three sides of the conductor in a mould and pressing it against the conductor by a stamp p before covering the exposed side of the conductor with the free ends. In the form shown, the conductors are arranged in pairs, the inner pair 56 being surrounded by a U-shaped insulator w and separated from the insulator v of the second pair 3, 4 by the layer z, and the top pair 1, 2 are enclosed by the U-shaped insulator u as well as the limbs of v, w. After applying radial pressure, the ends of the insulators u, v, ware bent over and the insulated conductor thus formed is enclosed in an insulating sheath. The mould f may be heated, and after the radial pressure has been applied, the sides of the mould may be pressed towards one another. The upper conductor of each pair may have an insulating member s on three sides and the lower one may be enclosed in a sheath h. This method of insulating need not be applied to all the conductors in a slot. Where triangular core slots are used, wedge-shaped insulating members may be used to fill the slot.
Patent GB-445937-A (GB)
Title: Improvements relating to reinforced concrete floors, roofs and like structures
IPC: E04C5/16
Filed: 1934-10-18
Abstract: 445,937. Radiators for heating and cooling buildings. MUSGRAVE, J. L., Bush House, Aldwych, London, JAMES, R. T., Brook Cottage, Brook, Godalming, Surrey, and CRITTALL & CO., Ltd., R., Bush House, Aldwych, London. Oct. 18, 1934, No. 29815. [Class 64 (ii)] [See also Groups X and XXVIII] The heating or cooling pipes B of a building are embedded in a reinforced-concrete floor, roof or the like and are maintained in position by hangers or stirrups A, Fig. 1, which combine with bearing members D for positioning the reinforcing members d<1> of the structure. In the case of a floor embodying hollow blocks E as shown in Fig. 1, the pipe B and the hangers A are first placed in position on the shuttering, a layer of concrete is then poured, and the reinforcing rods d<1> are laid on bearing members D placed on the pipe B. The hollow blocks E are then arranged in position and the remainder of the concrete is cast. The ends a<1> of the hangers A. are bent downwardly on to the blocks E. In a modification, the bearings D are provided with legs d<2> as shown in Fig. 3, which rest on the shuttering, and such bearings D serve to register the positions of the blocks E. The reinforcing rods d' may be supported by the bearings D in a position at right angles to the pipe B. A stirrup and bearing member may be constructed in one piece and formed either of wire as shown in Fig. 4, or sheet-metal as shown in Fig. 7, the rods d<1> in these constructions being disposed at right angles to the pipe B. The stirrup and bearing shown in Fig. 8 is bent from sheet-metal and is adapted to support the reinforcing rods in bent parts d<3> so that they lie parallel to the pipe B.
Patent GB-466272-A (GB)
Title: Improvements in clockwork mechanisms
IPC: G04C1/02
Filed: 1936-10-12
Abstract: 466,272. Clocks. SIEMENS BROS. & CO., Ltd., and FORCEVILLE, E. A. Oct. 12, 1936, No. 29831. [Class 139] Winding - apparatus, electric. - Clockwork mechanism has a first wheel (rigid with ratchet 6) of the gear train driven by a leaf spring 18 through a lever 15 and pawl 17 thereon, a pivoted armature 9 of a periodically energized electromagnet 8 operating the lever 15 to give additional tension to spring 18 and the pivots 14, 10 of the lever 15 and armature 9 lie on opposite sides of a plane containing the axis of the said first wheel, with the lever and armature extending towards said plane. The driving spring 18 is anchored at 20 near the hinge 10 and its free end presses down at 21 on the lever 15. The latter is cut away at 15<a> to permit this and has a bifurcated end, of which 15c carries the pawl 17 and 15b carries a contact 16 overlying a coacting contact 13 on the armature 9. As spring 18 and pawl 17 pull ratchet 6 counterclockwise under control of the escapement 7, contact 16 meets contact 13 to energize the magnet 8 which pulls up its armature to raise lever 15 ; whereby pawl 17 rises over another tooth and spring 18 is further tensioned.
Patent GB-954315-A (GB)
Title: Improvements in or relating to vacuum lifting devices
Inventor: STRETTON HENRY JACKSON
IPC: B66C1/02
Filed: 1961-08-18
Abstract: 954,315. Holding and picking-up tools. G. D. PETERS & CO. Ltd. July 5, 1962 [Aug. 18, 1961], No. 29853/61. Heading B4W. [Also in Division B8] A vacuum lifting device comprises a suction pad and means for creating reduced air pressure under the suction pad by means of compressed air. The device comprises a body 1 attached to a circular foot 2 by # neck. The foot houses a lipped seal 4 of rubber or similar flexible material which is clamped to the foot. A bore 8 formed in the foot and neck is connected with a transverse bore 49 at one end of the body and which communicates with a blind bore 18 in the body via a passage 19. An operating handle 10 pivoted at 11 to the body, rests at the other end on a push-button 12, the latter being arranged to knock a ball valve 14 off its seating. A spring-loaded piston 31 is slidable in the cylindrical bore 18 in the body on a shaft 37 which is connected directly to an auxiliary piston 32. One end of the piston -- forms a chamber 43 with the blind end of the bore 18. A spacer 42 is arranged between the two pistons to form another chamber 44, a third chamber 45 being formed between the piston 32 and plug 28 which closes the entrance to the bore 18. The second and third chambers are in communication via passage-ways 46 in the piston 32, the second chamber 44 being normally connected with the ball valve 14 via an inlet orifice 47. On pressing down the handle 10 air under pressure from a source connected to conduit 17 is permitted to enter the second chamber 44. The air under pressure acts on the piston 31 and moves it along the bore 18 against the pressure of the return spring 36 until the piston hits the abutment 40 on shaft 37 thereby causing the piston 32 to move with the shaft to close the inlet orifice 47 and open the outlet orifice 50 to atmosphere. Air contained in the first chamber 43 exhausts to atmosphere through a non-return valve 20 in the passage 19. The chambers 45, 44, are connected to atmosphere when the piston 31 reaches the end of its forward stroke. On the return stroke, the piston 31 under the influence of the spring 36 is returned to its original position and forces air from the chamber 44 to the chamber 45 and to the atmosphere via orifice 50. During the return stroke rarified air passes one way from the lipped seal 4 to the chamber 43 through a noreturn valve 21. When the piston 31 has returned far enough to abut the spacer 42 pressurized air can again enter the chamber 44 through the orifice 47 and the action is repeated until the required degree of vacuum is obtained, the degree of vacuum being determined by the spring 36.
Patent GB-1272593-A (GB)
Title: Apparatus for controlling machine cutting tool/workpiece vibration
Inventor: TOBIAS STEPHEN ALBERT
IPC: B23Q11/00
Filed: 1968-06-24
Abstract: 1,272,593. Vibration damping. NATIONAL RESEARCH DEVELOPMENT CORP. 8 July, 1969 [24 June, 1968], No. 29980/68. Heading B3B. Apparatus for controlling vibrations set up between the cutting tool and workpiece in a machine tool during the machining of a workpiece comprises means to sense the amplitude of the vibration and to actuate means to heat the tool/workpiece contact area whenever the vibration exceeds a predetermined value. In a lathe a vibration pick-up transducer 13 is located adjacent the cutting tool 12 which machines the workpiece 11, the output from the pick-up being passed through a circuit containing an amplifier 14, rectifier 15, filter 16 and a Schmitt trigger 16<SP>1</SP> to a transformer and rectifier 22. The output terminals 23, 24 of the transformer 22 are connected to a brush 25 contacting the workpiece 11 and cutting tool 12 respectively whereby the contact region between tool and workpiece is heated thereby reducing vibration. The apparatus may be applied to boring and milling machines.
Patent GB-786458-A (GB)
Title: Improvements relating to arrangements for the supply of fuel air mixture to internalcombustion engines
IPC: F02M33/04
Filed: 1955-10-21
Abstract: 786,458. Carburetters. DAIMLER-BENZ AKT.-GES. Oct. 21, 1955 [Oct. 22, 1954], No. 30111/55. Class 7(3) Fuel is supplied by a pump 1 past a filter 3 to a nozzle 4. The mixture passes through screens 6 to the engine and fuel droplets above a certain size are separated out and the fuel thus collected flows back to the fuel reservoir 2. The rate of air flow is regulated. The invention is particularly for multi-cylinder engines.
Patent GB-969783-A (GB)
Title: Improvements in or relating to engineer's drilling jigs and the like
IPC: B23B47/28
Filed: 1961-08-22
Abstract: 969,783. Drill Jigs. D. B. VALLANCE. Aug. 22, 1962 [Aug. 22, 1961],- No-. 30160/61.` Heading B3C. A drill jig comprises a base 21, a vee block 22 adjustable in a slot 45 for supporting work 23, and a clamp- 10 having drill bushes 16, 17 therein. An adjustable work stop 43 is slidable in a bore 40, and a second vee block 44 is provided to support overhanging work. The clamp can be set in three positions, as shown, or aligned with bores 47, 49, or 46, 48.
Patent GB-1389904-A (GB)
Title: Nuclear power generating systems
IPC: F28F21/08
Filed: 1972-06-28
Abstract: 1389904 Heat exchangers for steam generation BABCOCK & WILCOX CO 28 June 1972 [14 July 1971] 30310/72 Heading F4A [Also in Division G6] A heat-exchange module comprises upper and lower headers 52, 53 an inlet feedwater tube 56 for conducting water to the lower header, a plurality of heat-exchange tubes 47 for conducting the water from the lower to the upper header, and an outlet 60 from the upper header. Ferritic steel may be used in the construction of the heat exchange module which is adapted for use with a nuclear reactor. In the reactor, the module is assembled adjacent similar modules to form a lattice arrangement above and outside the periphery of the nuclear core (Fig. 2, not shown). The modules are staggered vertically (Fig. 4, not shown) to provide improved access thereto by the reactor coolant. The bundle of heat-exchange tubes 47 of the module is supported against bowing by means of grids 52. The outlet steam from groups of nine and ten modules passes to manifolds.
Patent GB-428913-A (GB)
Title: Improvements in winches having two drums
IPC: B63B21/16
Filed: 1934-10-23
Abstract: 428,913. Winches. AKTIEBOLAGET ALCUS, 45, Regeringsgatan, Stockholm. Oct. 23, 1934, No. 30411. Convention date, Oct. 25, 1933. [Class 78 (v)] A winch for loading ships comprises a single non-reversible driving motor 24, separate reversible motion transmitting means contained in housings 13 and including a braking mechanism operative for driving the drums 8 independently of each other in the same direction, or in opposite directions, or for driving one drum in either direction while the other is stationary, and operating members 22, 23 for each transmission mechanism so arranged that they can be actuated by one man. Each end of the motor shaft is secured to a shaft 40 on which are mounted disc clutches 20, 21 controlled by the movement of the arms 22, 23. The outer clutch sleeves are connected by bevel gears 17, 18 to a gear 19 on a shaft 54 which can be coupled to the worm shaft 58 either directly through coupling members 63, 64 when a gear 15 is displaced, or through the train of gears 59, 60, 62, 15. Each shaft 58 engages a worm wheel on one of the drum shafts 35, 36.
Patent GB-738398-A (GB)
Title: A rake accessory for a lawn mower
IPC: A01D34/62
Filed: 1952-12-01
Abstract: 738,398. Lawn-mowers. BISSET, J. L. Dec. 1, 1953 [Dec. 1, 1952], No. 30465/52. Class 6 (2). A rake for a lawn-mower comprises tines 33 fixed on a rod 31 mounted on a U-shaped holder 14, 15, 16 secured to a lawn-mower and springs 38, 39 for urging the free ends of the tines away from the cross-member 15 of the holder. As shown, the member 15 is hollow and carries L-shaped brackets 18, 20 which are secured by screws 21, 22. The bracket 18 carries grippers (not shown) and the bracket 20 carries adjustable clamps 27, 28 for securing the rake to a grass box 12 of a mower 10. The rod 31 is mounted in slots 29, 30 and movement of the rod is limited by a stop 37. In a modification for use on an electric lawn-mower provided with a rear grass-collecting box, the rod is non- rotatably mounted on the side arms and four sleeves rotatable on the rod each carry a series of tines. In a further modification for use on a mower provided with a grass box which is emptied by pivoting forwards, the forwardly extending arms are pivotally mounted on the cross-member.
Patent GB-1382640-A (GB)
Title: Oxidation of sulphur and sulphur compounds to so2
IPC: B01J23/80
Filed: 1972-06-29
Abstract: 1382640 Oxidation catalyst INSTITUT FRANCAIS DU PETROLE 29 June 1972 [1 July 1971] 30574/72 Heading B1E [Also in Division C1] A catalyst for the oxidation of sulphur compounds in waste gas streams comprises a mixed oxide of the spinal type formed with iron and/or chromium and zinc and/or nickel, any other divalent metals present in the catalyst being at most 20% of the total metal content. At least 60% by weight of the catalyst has the spinel structure. The catalyst may be of the formula M x Cr z  Fe 2-z O u  where 0.2#x #2; 0.1#z #1.9; and 3.2 #u #9 and wherein M is a divalent metal either zinc and/ or nickel and may contain optionally a minor proportion of copper, cobalt, magnesium or cadmium. The catalyst may be supported on a carrier such as alumina, alumina-silica, aluminates and silicon carbide.
Patent GB-940132-A (GB)
Title: Flexible, multiple, continuous, pull-apart form and method of making same
Inventor: HUFFMAN HAROLD WALTER
IPC: B41L1/32
Filed: 1961-08-25
Abstract: 940,132. Manifolding stationery. HAMILTON TOOL CO. Aug. 25, 1961, No. 30669/61. Heading B6A. Superposed record sheets 20, 30, 40 and 50 are secured together by providing tongues 60 which are struck out of the top sheet 20 and secured at their free ends by adhesive to the sheet 30, and further similar tongues in the sheets 30 and 40 which are similarly secured, respectively, to the sheets 40 and 50, whereby the sheets can be moved relatively to each other in one axial direction of the tongues, but not in the other. As shown, the record sheets form parts of superposed strips or webs which have been folded in zig-zag form, and the method of securing them together facilitates this zig-zag folding. The strips are all perforated at 16 to provide an end stub 14, and superposed strip-feeding holes 12 are also provided. Carbon sheets or strips 25, 35, 45 are secured, respectively, by adhesive to the record sheets or strips 20, 30, and 40 along zones between the holes 12 and the perforations 16, whereby the record sheets may all be separated from the stub 14, leaving the carbon sheets or strips attached to the stub. The carbon sheets are omitted where the record sheets are treated chemically for duplicating purposes.