baber/WOPTO huggingface dataset:
Patent GB-741688-A (GB)
Title: Improvements in or relating to articulated link cartridge belts for machine guns
Inventor: FRENCH GEORGE FREDERICK
IPC: F42B39/08
Filed: 1953-06-15
Abstract: 741,688. Cartridge belts. FRENCH & SONS, Ltd., T. April 2, 1954 [June 15, 1953; Oct. 26, 1953], Nos. 16357/53 and 29480/53. Class 92 In a link for a disintegrating cartridge belt, of the kind comprising arcuate cartridge-engaging arms a<SP>1</SP>, c, c<SP>1</SP> Fig. 2. two c, c' of which extend in the same direction from central connecting part having vertical portions b integral with the outer side edges of the arms a<SP>1</SP>, c, c<SP>1</SP>, the arm a<SP>1</SP> is formed with a central indentation a adapted to be located between the two arms c, c<SP>1</SP> of an adjacent link, the arrangement being such that the cartridge is gripped at the indentation a whilst the arms c, c<SP>1</SP> of the adjacent link can turn freely on the cartridge beneath the sides of the arm a<SP>1</SP>. The root ends of the sides of the arm a<SP>1</SP> have extensions a<SP>2</SP> bent to lie underneath the box-like formation provided by the portions b and the root ends of the arms, and the root end of the indented portion a is slit at its edges a<SP>3</SP> to form a resilient tongue a<SP>4</SP> adapted to grip the cartridge but allow radial ejection thereof. In another form the outer edges of the arms 12, 13 Fig. 10 have stiffening flanges 12a which provide abutment faces for axial ejection of the cartridge. In addition instead of slitting the root end of arm 10, it is cut back to form a notch 10f and a notch 10g or an aperture 10h Fig. 13 (not shown) is formed in the outer end of the arm. A C-shaped clip 15 is located on the arm 10 with its ends 15a, 15b engaging in the notches and one or both ends being adapted to engage the cartridge resiliently.
Patent GB-1535889-A (GB)
Title: Continuous production of iron oxide black pigments
IPC: C01G49/08
Filed: 1977-04-20
Abstract: 1535889 Fe 3 O 4  black pigment BAYER AG 20 April 1977 [24 April 1976] 16370/77 Heading C1A Fe3O 4  black pigment having a magnetite structure is continuously made by introducing a ferrous salt solution and the solution of an alkaline precipitating agent into the first vessel of a cascade of vessels, oxidizing the resulting suspension with free O 2 -containing gas simultaneously in each vessel of the cascade at pH 9-10 and 60-80‹ C. while maintaining the concentration of iron oxide in the suspension discharged from the last vessel at 30-50 g/l Fe 3 O 4 . The cascade preferably comprises three vessels, the ferrous salt is preferably ferrous sulphate and the precipitating agent may be NaOH or NH 4 OH. Oxidation is suitably continued until the ratio of Fe(III):Fe(II) in the suspension discharged from the last vessel is 1.8.
Patent GB-410325-A (GB)
Title: Improvements in and relating to pneumatic dispatch and other conveying systems
IPC: B65G51/44
Filed: 1933-06-07
Abstract: 410,325. Pneumatic despatch systems. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Chambers, D. E.; 17, Pinewood Avenue, Schenectady, New York, U.S.A.) June 7, 1933, No. 16378. Convention date, June 16, 1932. [Class 116.] In a pneumatic despatch or other conveyer system in which a number of stations are connected by a single conveyer path, such as a tube, and in which the delivery of the carrier or other conveying member at a predetermined station is effected by the mutual effects of oscillation circuits, a vapour electric discharge device responsive to current in an oscillation generator including coils surrounding the conveyer path, controls a member for deflecting the carrier into a desired branch path which incorporates means operated by the passage of the carrier for opening the plate circuit of the associated discharge device. When a carrier 30 with a closed oscillation circuit 31, 31<a> of a definite frequency passes through spaced coils 20, 21 associated with an oscillation generator 22, 23, 24 of the same frequency, the generator is overloaded so that oscillation ceases and makes less negative the grid of the vapour electric discharge device 32 which is of the type in which plate current, when started, continues to flow irrespective of changes in the grid voltage. The plate circuit operates a relay 33 which effects the operation of a relay 15 and the solenoid 16 of this relay operates a deflecting member 12 against a stop 17. The carrier in passing down the discharge tube 10 engages a pivoted member 40 which opens at contacts 34, 41 the plate circuit of the valve 32. Relays 33, 15 de-energize and the deflecting member 12 is returned to its normal position, as shown, by the action of a spring 14. Specifications 270,718 and 271,449, [both in Class 116], are referred to.
Patent GB-1466928-A (GB)
Title: Method for producing flooring plasters from inorganic binders by the flooding process
IPC: E04F15/12
Filed: 1974-04-16
Abstract: 1466928 Self levelling plaster flooring BAYER AG 16 April 1974 [16 April 1973] 16434/74 Heading E1G A method of producing a self levelling flooring by which an inorganic binder is formed into a fluid composition by the addition of excess water and is applied to a layer on the floor which sets with said water. To control the water absorption a separating layer of paper, cardboard, textile fabric, perforated plastics sheeting, or a water soluble layer may be used. The binder may include 50% to 150% by weight of fillers. The water absorbent layer may comprise gypsum, anhydrite, Portland cement, or a mixture thereof, and the binder may be anhydrite. The ratio of water to binder by weight is between 0.38 and 0.75 and preferably between 0.45 and 0.60.
Patent GB-548164-A (GB)
Title: Improvements in or relating to key rings, links and like articles
IPC: A44B15/00
Filed: 1941-12-22
Abstract: 548,164. Key and like rings. BEECH, E. E., and HOWARD WALL, Ltd. Dec. 22, 1941, No. 16472. [Classes 44 and 89 (ii)] A key ring, closed hook or swivel link, chain link or like article is of resilient material cut at a suitable point, the complementary surfaces of the cut being curved with the general direction of the cut preferably oblique. Fig. 2, shows a form of closed hook or swivel link 3 with eye 4 and obliquely cut at 5 the surfaces of the cut being curved. The Specification also shows applications to a circular key ring and elongated chain link. The material of the ring may be of circular, oval, or other cross-section.
Patent GB-807564-A (GB)
Title: Valve arrangements in compressed air blow guns
Inventor: ELLIOTT CHARLES HERBERT
IPC: F16K11/16
Filed: 1956-05-28
Abstract: 807,564. Valves. REED ROLLER BIT CO. May 28, 1956, No. 16492/56. Class 135. A blow gun with a hollow body 10 of aluminium, bronze, cast iron, rubber or plastic material is formed with a hand grip portion 11 and an extension 12 terminating in a nozzle 13, the latter being provided with a hook 15. Communication between the compressed air inlet 18 and the nozzle passage 35 is controlled by four standard tyre valves each sealed in a bore through a wall 20 extending transversely across the body, the valves being positioned at different heights so that they are opened sequentially upon depressing a common actuating stem 22 in a nut member 21, removal of which latter facilitates access to the valves. The extent to which the stem 22 is depressed determines the number of the valves which are unseated and hence the quantity of air discharged through the nozzle 13.
Patent GB-355380-A (GB)
Title: Method of preparing new azo dyes
IPC: C09B29/08
Filed: 1930-05-28
Abstract: Azo-dyes which may be used for colouring and preserving food products, for staining histological specimens, as antiseptics, and in the treatment of various diseases and skin infections, are obtained by diazotizing an alkoxy aniline and coupling with a 1 : 3 diaminobenzene which may also be substituted by 1-3 alkyl groups. According to an example p-phenetidine is diazotized and coupled with m-phenylene diamine, to give the monoazo compound, and with excess of the phenetidine to give the disazo compound. Other alkoxy anilines specified are p-anisidine, o-phenetidine, p-propyloxyaniline, p-butyloxyaniline, p-isoamyloxyaniline, all coupled with m-phenylene diamine, and the products isolated as hydrochlorides, or acetates. Alkoxyanilines are obtained by condensing a nitrophenol with an alkyl bromide (butyl, propyl, amyl, &c.), in presence of the corresponding alcohol, and reducing the nitro group.
Patent GB-1509997-A (GB)
Title: Vacuum stripping of hydrocarbon-contaminated waste water streams
IPC: C02F1/58
Filed: 1975-04-22
Abstract: 1509997 Treating wastewater containing hydrocarbons H-T MANAGEMENT CO 22 April 1975 16565/75 Heading C1C [Also in Division B1] Domestic sewage containing hydrocarbon contaminations goes from a primary clarifier to a lime contact raising the pH to about 11 and removing phosphates and some biological sludge. It then flows at a temperature of at least 40‹F. to a vacuum stripping tower 12 where the hydrocarbons, ammonia and some water are removed as vapours through the vacuum pump. A countercurrent stripping gas may be introduced into the tower. Packing material 14 may be present in the tower. The effluent is recarbonated to a lower pH and the recovered lime recycled to the lime contact.
Patent GB-212476-A (GB)
Title: Apparatus for handling loose materials
IPC: E21F13/06
Filed: 1923-06-26
Abstract: 212,476. Marks, E. C. R., (Goodman Manufacturing Co.). June 26, 1923. Guiding load.-Relates to means for guiding. and controlling the movements of a scraper 1 which is hauled to and fro by head and tail ropes 2, 3 for transporting loose material from place to place, for example from the working face in a mine to and over a portable incline 65 for loading trucks 66. The incline 65 is carried on a selfpropelled truck, which also carries the winding drums, the driving motor and the controls. The head rope 2 passes from a winding arm over guide sheaves on the truck and over the sheaves 5 to the scraper. The sheave 5 is supported by a control line 6 passing from a second drum over guide sheaves 6<b>, 6<a> on the truck, and over the fixed guide sheave 7. The tail rope 3 passes from a third drum over guide sheaves 3<b>, 3<a>, on the truck and a fixed guide sheava 4. The mechanism is arranged so that when hauling on the head rope in the position shown the drumfor the control line falls behind and subsequently overtakes the other drums, and the guide sheave 5 moves so that the scraper 1 travels first along the face 83, then outwards from the face and towards the incline 65. A fixed guide is provided at 84.
Patent GB-903077-A (GB)
Title: Method of purifying olefin polymers
IPC: C08F6/02
Filed: 1961-05-08
Abstract: Olefin polymers are purified by treatment with an organic compound containing a sulphate group, i.e. <FORM:0903077/IV(a)/1> in the molecule.  The polymer is preferably polypropylene obtained by stereospecific polymerization.  Specified organic compounds are diethylsulphite, and ethylene-glycolsulphite.  The sulphite compound is generally added to the polymerization slurry as a solution in an inert solvent, e.g. n-heptane, and after agitation it is removed, e.g. by a centrifuge, and the solid polymer purified by conventional methods, e.g. treatment with steam.
Patent GB-709608-A (GB)
Title: A hydraulic driving device
IPC: E21B4/02
Filed: 1952-07-02
Abstract: 709,608. Hydraulic turbines. RAUTENKRANZ, H. VON, and MEYER, O. July 2 1952 [July 20, 1951]. No. 16650/52. Class 110(3) The turbine comprises a stator provided with substantially tangential discharge nozzles mounted concentrically with a rotor carrying blades, or ducts, which are open in one axial direction. Working fluid may flow radially outwards, or inwards, i.e. the rotor may be inside the stator or outside. As shown for a boring tool shaft, a stator 5. containing the liquid supply pipe 2, has discharge nozzles 7 and a rotor 6 is provided with ducts 8, oblique to the longitudinal axis, the ducts being closed at one end 8a and open at the other. The liquid is discharged through a chamber 9 and bores 10 to outlet 11.
Patent GB-621963-A (GB)
Title: Improvements in or relating to means for facilitating the tightening and unscrewing of nuts on bolts or the like
Filed: 1946-06-03
Abstract: 621,963. Bolts ; nuts. AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN. June 3, 1946, No. 16821. Convention date, June 13, 1945. [Class 89 (i)] To facilitate the screwing up and unscrewing of nuts under heavy loads, tension is applied to the bolt by means acting independently of the nut. A piston 3, Fig. 1, is screwed on to the bolt 1 so that the end of a skirt 4 contacts the upper member 17 to be secured. Cylindrical parts of the piston fit the cylinder 7 at 5 and 6 and a cap nut 2 screws onto the piston to abut the cylinder. The space 16 between packing washers 9, 10 is ported at 15 to a chamber 14 closed by a tightly fitting screw 13, and is filled with a fluid such as paraffin. The pressure produced by screwing in the screw 13 tensions the bolt and the resulting elongation is taken up by the nut 2. The Specification as open to inspection under Sect. 91 describes a modification in which the nut 2, Fig. 2 (Cancelled), directly engages the part 17 and is spanned by a series of legs 18 projecting from the cylinder and affording space for the application of a tommy bar to holes 19 in the nut. In this form, the hydraulic device may be removed after the bolt has been tensioned. This subject-matter does not appear in the Specification as accepted.
Patent GB-167650-A (GB)
Title: Improvements relating to spring-forks for motor-cycles
IPC: B62K25/24
Filed: 1920-06-22
Abstract: 167,650. Rigby, G. E., and Ruby Cycle Co., Ltd. June 22, 1920. Spring devices.-In spring front forks for motorcycles wherein the control spring is provided with upper and lower attachments to the steering- column, a central horizontal spring I is mounted in a forwardly projecting carrier or housing F<x> which is formed with side plates or arms F for attachment to the column B above and below the head G. The spring may be pivotally and adjustably secured within the carrier.
Patent GB-1486591-A (GB)
Title: Machine erectable box
IPC: B65D5/30
Filed: 1974-04-17
Abstract: 1486591 Boxes DRG PACKAGING Ltd 9 April 1975 [17 April 1974] 16851/74 Heading B8P A collapsible box, e.g. of polyethylene-lined cardboard includes a bottom panel 2 and pairs of side panels 3, 4, the panels 3 having slits 5 for co-operation with tongues 8 on the panels 4 and having sloping end edges 17 so that their free edges 16 are shorter than hinge lines 18. On erecting the box, the tongues 8 are pushed through the slits 5 so that the edges 17 of the panels 3 engage the panels 4 along junctions with flaps 7 bearing the tongues 8, Fig. 3, and the panels 4 are drawn outwardly, so that free edges 21 of the tongues 8 engage portions 5<SP>11</SP> of the slits 5, Fig. 2 (not shown). The box may be provided with a similarly-formed lid.
Patent GB-530322-A (GB)
Title: Improvements in or relating to shoe stiffeners
IPC: A43D11/03
Filed: 1939-06-09
Abstract: 530,322. Shoe stiffeners. BRITISH UNITED SHOE MACHINERY CO., Ltd., BANCROFT, W. H., Hill, M. G., and CLARK, K. J. B. June 9, 1939, No. 16890. [Classes 17 (i) and 17 (ii)] Relates to improvements in the method of making stiffeners wherein a locally delivered mass of impregnant is, by pressure, spread and caused to penetrate into a layer of absorbent sheet material from one side thereof, such as described in Specifications 469,014 and 487,159. According to the invention, a blank of backstiffened swansdown (i.e. one which has one surface loaded with china clay and the other surface raised or fleeced) is placed on a die, such as described in Specification 469,014, with the raised surface uppermost, a mass of impregnant is locally delivered thereon and covered with a blank of greaseproof paper. Pressure is then applied through a pressure plate, as described in the Specification referred to. The resultant stiffener is stored in a closed container until required, when the greaseproof paper is stripped off. Instead of a back-stiffened swansdown, unloaded swansdown with the lower side treated with a celluloid derivative solution, rubber solution, gelatine solution or shellac solution may be used. In another method, two blanks of swansdown, either back-loaded or back-treated with solution, are arranged in the die, impregnant being locally applied between them. The product may be stored until required, and then separated to form two stifteners. Alternatively, untreated swansdown blanks may be used, with blanks of filter paper at the bottom and top of the opposed swansdown blanks between which the impregnant is delivered. To guard against the escape of impregnant between the layers the die block described in Specification 487,159 is replaced by a die device comprising a block 1 having an upstanding central portion 3 formed with a marginally-bevelled die cavity 5 and fitting snugly in an aperture in a plate 7. This plate is urged upwards to a limited amount by springs 11 surrounding three screws 9. Four plungers 15 urged upwards by weak springs 17 serve as positioning means for the blank.
Patent GB-792296-A (GB)
Title: Improvements in or relating to enclosed electric switches and switch units
Inventor: PRENTICE HERBERT WALTER
IPC: H01H9/22
Filed: 1955-06-13
Abstract: 792,296. Switch cases. PRENTICE, Ltd. June 12, 1956 [June 13, 1955], No. 16956/55. Class 38 (5). Rotation of the operating lever of a switch to the off position allows a cover 11 to be removed by unscrewing a screw 24 from a plate 15. As the screw is withdrawn, a spring 12 raises an L-shaped locking-plate 17 so that a portion 20 thereof enters a notch 13 in the switch-spindle 12 to prevent operation thereof until the cover is replaced. The switch spindle carries a cam adapted to depress a bridging bar-contact out of engagement with fixed contacts against the action of springs (Fig. 6, not shown). The cover has a widened slot which clears the operating lever in the off position.
Patent GB-702652-A (GB)
Title: Improvements in electric cables, more particularly submarine cables
IPC: H01B7/14
Filed: 1952-07-07
Abstract: 702,652. Cables. NORDDEUTSCHE SEEKABELWERKE AKT.-GES. July 7, 1952 [Aug. 31, 1951], No. 17000/52. Class 36 Cavities occurring between the conductor and insulation and within the stranded conductor of a polyethylene-insulated cable are filled with a viscous mass consisting of polyalcohols. The conductor is drawn through the viscous mass, which may be heated, before the application of the polyethylene insulation.
Patent GB-776904-A (GB)
Title: Pipe coupling
Inventor: LENSING RUDOLF
IPC: F16L37/52
Filed: 1955-06-13
Abstract: 776,904. Pipe joints. SCHARF GES., H. June 13, 1955, No. 17002/55. Class 99(1) Pipes 7 are connected by a sleeve 1 carrying retaining rings 2 to which are rigidly secured sealing rings tightly seated on the ends 6 of the pipes. As shown, the sleeve has inwardly-directed flanges 3 and each sealing ring is angular in crosssection, one flange 4 being inserted in a ring 2 and the other flange 5 forming a lip; a steel wire ring 8 is embedded in the rings and at the junction of the flanges. To prevent withdrawal of the pipes from the sleeve, cable, chain or rope devices 9 are provided. A branch pipe may be connected to an opening 10 in the sleeve.
Patent GB-647316-A (GB)
Title: Method of production of ammonium salts of the sulphamic acids
IPC: C01B21/093
Filed: 1948-06-24
Abstract: Ammonium salts of sulphamic acids (ammonium amido sulphonate, NH2SO3NH4, normal ammonium imido sulphonate, NH(SO3NH4)2, basic ammonium imido sulphonate, NH4.N (SO3NH4)2 and ammonium nitrilosulphonate, N(SO3NH4)3) are made by mixing with anhydrous ammonia the hot SO3-containing gases obtained from the contact bodies in the contact-process for making sulphuric acid, and recovering the sulphamic acid salts from the reaction mixture.  Gaseous or liquid ammonia, e.g. in finely-divided form, may be used and may be diluted with air or other inert gas.  The composition of the reaction product is mainly dependent on the ratio NH3 : SO3, the reaction temperature which may be below the melting point of the reaction product, and on the duration of the reaction.  The mixture of the ammonium salts may be worked up to pure products, e.g. by recrystallization.  Ammonium amidosulphonate on heating forms the normal imido sulphonate and ammonia, and the nitrilosulphonate hydrolyses to the imidosulphonate and acid ammonium sulphate.  The prior art discloses the preparation of potassium nitrilo and imido sulphonates from potassium nitrate and potassium bisulphite, amidosulphonic acid from urea and chlorsulphonic acid, ammonium imido sulphonate from pure sulphur trioxide and ammonia in the form of gas or liquid spray and basic ammonium imidosulphonate from sulphur trioxide and aqueous ammonia.ALSO:Mixtures of ammonium salts of sulphanic acids (ammonium amido sulphonate, NH2SO3NH4, normal ammonium imido sulphonate, NH (SO3NH4)2, basic ammonium imido sulphonate, NH4N (SO3 NH4)2, and ammonium nitrilosulphonate, N(SO3NH4)3), made by mixing with anhydrous ammonia the hot SO3-containing gases issuing from a sulphuric acid contact-process (see Group III), may be used as a nitrogenous fertilizer.
Patent GB-683120-A (GB)
Title: Improvements in and relating to methods of testing lamp cathodes
IPC: G01R1/30
Filed: 1951-07-19
Abstract: 683,120. Electric indicating systems. BRITISH THOMSON-HOUSTON CO., Ltd. July 19, 1951 [Aug. 9, 1950], No. 17160/51. Class 40 (i) [Also in Group XXXVI] The quantity of emission material on the resistive cathode 2a of a discharge tube 2 is measured by comparing, in a Wheatstone bridge, the thermal inertia of the cathode 2a with that of similar uncoated or partially coated cathode 3a of known thermal inertia. The bridge may be balanced e.g. by means of the resistor 6 with both cathodes at a relatively high temperature. The cathodes are then allowed to cool to ambient temperature when the bridge is re-energized and the maximum temporary unbalance of the bridge measured during the time taken to reach the highest thermal equilibrium. Alternatively, the bridge may be balanced with the cathodes below emission temperature and the maximum momentary unbalance measured during the heating of the cathodes when a predetermined higher voltage is applied to the bridge. The maximum temporary unbalance is in each case a measure of the amount of emission material on the cathode 2a and is measured on a valve voltmeter 7. The bridge output at CD is preferably fed through a transformer 10 Fig. 2 - to a rectifier 13 which applies a positive voltage proportional to the bridge output to a valve voltmeter consisting of two parallel connected similar pentodes 18, 19 having the meter 20 connected across their anodes. Normally the valves conduct equally, application of the input voltage to the grid of pentode 18 increasing the anode current therein to produce a corresponding deflection on the meter 20.
Patent GB-938043-A (GB)
Title: Dialkoxyaluminium hydride reducing agents
IPC: C07F5/06
Filed: 1961-05-11
Abstract: Dialkoxy aluminium hydrides of formula Al(OR2)H, in which R is an alkyl group, e.g. C5H11, C8H17, C16H33, are prepared by reacting Al(OR)3 with R2AlH, (Alk)AlH4 or AlH3, in which Alk is an alkali metal or by reacting B(OR)3 with R2AlH.  The dialkyl-aluminium hydride may have alkyl groups containing from 1 to 20 carbon atoms and the trialkyl borate may have alkyl groups containing from 1 to 18 carbon atoms.  The dialkylaluminium hydride and trialkyl borate are preferably used in stoichiometric quantities.  The reaction temperature may be between 25 DEG  and 150 DEG C.  Numerous examples of starting materials are given. Specifications 770,707 778,098, 878,136 and 938,044 are referred to.