baber/WOPTO huggingface dataset:
Patent GB-582917-A (GB)
Title: Improvements in or relating to fastening devices for inspection covers, engine cowling on aircraft and for like purposes
IPC: E05C3/12
Filed: 1944-10-02
Abstract: 582,917. Fastenings. FAIREY AVIATION CO., Ltd., and TIPS, E. O. Oct. 2, 1944, No. 18824. [Class 44] A fastening for an inspection cover, panel, or the like a comprises a hook f, pivoted on a bracket e on the panel and adapted to engage a flange or lug on the fixed member to which the cover is to be secured, and a pair of toggle links i, k connected to the hook and the bracket respectively, with an operating member n passing through the cover and attached to the common pivot of the toggle links. The operating member n is preferably, as shown, a push-button, and it may be provided with a knob for withdrawal or, if the surface is required to be flush as shown, with means for engagement by a hooked tool; the latter means may comprise an undercut edge or a pin extending across an axial bore in the member n, and for this purpose the common pivot pin of the toggle links may be used, the member n being bored right through. A plate p under the bracket has re-curved edges (not shown) to hold a packing-piece which engages a seating on the flange of the fixed member carrying the cover. An emergency exit panel may be provided with a number of fastenings of this kind with their members n arranged to be operated from a single handle.
Patent GB-743475-A (GB)
Title: Centripetal subsonic compressor
IPC: F04D17/02
Filed: 1951-08-13
Abstract: 743,475. Electric motors. RANSFORD, A. J. (Pavlecka, V. H.). Aug. 13, 1951, No. 19069/51. Class 35. [Also in Group XXVI] Synchronous electric motors 26, 28 drive the rotors 36, 38 respectively of a contra-rotating radial-flow compressor. The compressed air passes through hollow rotor shafts 18, 20 to outlet ducts 109, 110, the shafts being insulated by sleeves 103, 104 to reduce heat transfer from the compressed air to the motors 26, 28. The inlet duct 97 of the compressor may be provided with ventilation ducts 99, 100 for the supply of cooling air to the motors 26, 28.
Patent GB-668412-A (GB)
Title: New quinoxaline derivatives
Filed: 1949-07-20
Abstract: The invention comprises quinoxaline-di-N-oxides of the formula <FORM:0668412/IV (b)/1> in which X and Y are alkyl groups having less than 5 carbon atoms and Z is hydrogen, cyano, methoxy or halogen, and their preparation from the corresponding quinoxalines or their mono-N-oxides by oxidation with per-acids.  The quinoxalines may be prepared by reacting the appropriately substituted o-phenylenediamine with the appropriate 1,2-diketone, e.g. 6-chloro-2,3-dimethylquinoxaline is prepared by reacting 4-chloro-1,2-phenylenediamine with diacetyl in aqueous acetic acid medium.  Examples are given of the preparation of 2,3-dimethylquinoxaline - 1,4 - di - N - oxide; 6 - chloro-, 6 - bromo- and 6-cyano-2,3-dimethylquinoxaline-1,4 - di - N - oxide; 2 - methyl - 3 - ethylquinoxaline - 1,4 - di - N - oxide; 2,3 - diethylquinoxaline - 1,4 - di - N - oxide; 2,3 - di - n - propylquinoxaline - 1,4 - di - N - oxide; 2 - methyl - 3 - n - propylquinoxaline - 1,4 - di - N - oxide; 2 - methyl - 3 - isopropylquinoxaline - 1,4 - di - N - oxide; 6 - chloro - 2,3 - di - n - propylquinoxaline - 1,4 - di - N - oxide; and 6 - methoxy - 2,3 - dimethylquinoxaline - 1,4 - di-N-oxide.
Patent GB-180242-A (GB)
Title: Improvement in neck-ties
IPC: A41D25/06
Filed: 1921-07-15
Abstract: 180,242. Nicolls, A. July 15, 1921. Neck-ties.-A neck-tie of the type comprising a neck band and two tying ends is provided with one or two tabs such as B for facilitating the adjustment of the tie. The tabs may be parallel with or at an angle to the tie; and are particularly useful when a double collar is worn. Reference has been directed by the Comptroller to Specification 12902/10.
Patent GB-406562-A (GB)
Title: Process for obtaining fibres fit to be spun from muscular flesh
IPC: A61L17/08
Filed: 1933-07-07
Abstract: 406,562. Obtaining fibres chemically. BOST, P., 95, Buergerheimstrasse, Lichtenberg, Berlin. July 7, 1933, No. 19268. Convention date, July 18, 1932. [Class 120 (i).] Spinnable fibres are obtained from muscular flesh by macerating or digesting the flesh and then impregnating it, before the drying, with a solution which will deposit crystals between the fibres on evaporation, e.g. carbonates chlorides or sulphates, or treating it successively with different solutions which interact and deposit a precipitate between the fibres. The flesh is subsequently dried and mechanically disintegrated. In an example the flesh is macerated, well watered and placed for 3-5 days in a saturated solution of sodium sulphate. Upon drying, minute crystals surrounding each fibre are formed. In a further example, the flesh is treated first with a solution of soda, and then with a calcium chloride solution, whereby a sediment of calcium carbonate is formed between the fibres.
Patent GB-797169-A (GB)
Title: Magnetic electric switch
IPC: H01H5/02
Filed: 1956-06-22
Abstract: 797,169. Magnetic switches. GUNNEBO BRUKS AKTIEBOLAG. June 22, 1956 [June 29, 1955], No. 19420/56. Class 38 (5). A switch, Figs. 1, 2, comprises a housing 2, 3 enclosing a rectangular cavity 7 in which a per-' manent bar magnet armature 8 may slide from right to left, as viewed in Fig. 2, to disengage a pair of fixed contacts 16. The armature is controlled by a pair of permanent bar magnets 13, 14 carried in members 19, 21 rotatable on the outside of the housing 2, 3 by a handle 9. The magnets 13, 14 are reversely positioned with respect to their polarity so that in each of the two positions of the handle 9, which are 180 degrees apart, the armature is held in its position by the attraction of one magnet and the repulsion of the other. In another construction, Fig. 4, the controlling bar magnets 38, 41 are rotated through 180 degrees by a knob 43 on a shaft 42 to cause movement to the left of permanent magnet armature 39 to disengage contacts 31. According to Fig. 8 four permanent magnets 51 ... 54 are rotated through 90 degrees to cause sliding movement of the armature 55 in a housing 56 to control contacts 57. In a modification of Fig. 8 (Figs. 10, 11, not shown), six permanent control magnets are provided to operate the armature with a 60 degrees rotation, and fixed soft iron keepers adjacent the path of the magnets serve to retain them in their switching positions. In Fig. 12 there are two pairs of fixed contacts 97, 98 and a pair of soft iron members 95, 96 are provided whereby the armature 93 may be held in either end position to bridge a pair of the fixed contacts or may be held in a central intermediate position by rotation of the control magnets 91, 92 through 90 degrees. In a modification of Fig. 12 (Figs. 15-17, not shown), the same result is achieved by utilizing four 90 degrees spaced control magnets, three having a north polarity and one a south. The switch housing may be air-tight and filled with an inert gas. Specification 492,189 is referred to.
Patent GB-966645-A (GB)
Title: Improvements relating to the production of plated metal
IPC: C25D7/06
Filed: 1962-05-21
Abstract: 966,645. Producing metal sheets. NATIONAL STEEL CORPORATION. May 21, 1962 [June 5, 1961], No. 19432/62. Heading B3A. A method of producing thin gauge steel strip plated with a corrosion protective metal comprises cold reducing hot rolled strip to a weight of from 80 to 100 lbs. per base box, cleaning, annealing and further cold reducing the strip to a weight of from 40 to 60 1bs. per base box, and finally cleaning and plating the strip with the protective metal. A base box represents the area of 112 sheets of 14 inches by 20 inches. After cold rolling a hot rolled strip to between 40 and 60 1bs. per base box and cleaning and annealing, the strip may alternatively be temper rolled and then cleaned and electroplated. A ferrous metal strip having, for example, the composition 0.09% C, 0.33% Mn, 0.035% S, 0.012% K, 0.015% Sn and 0.12% Cu is coated with tin aluminium or zinc. The strip 3 after conventional cold rolling, cleaning and continuous or batch annealing is passed through a pickling tank 53, a scrubber 57 and through electroplating pans 63 containing soluble tin anodes. One side of the strip is plated along path 49 and the other along path 51, the strip finally passing a rinse tank 80 and a drip tank 83 before coiling or further rinsing. A cleaner is shown in Fig. 3 comprising a cleaning tank 25, a scrubber 29, a hot rinse tank 33 and a drier 35.
Patent GB-223982-A (GB)
Title: Improvements in magnetos for ignition purposes
IPC: H02K1/27
Filed: 1923-07-31
Abstract: 223,982. British Thomson-Houston Co., Ltd., and Young, A. P. July 31, 1923. Magnetoelectric machines.-In a magneto provided with a rotor comprising a tubular permanent magnet having pole-pieces co-operating with a single stationary armature coil, laminated' fingers 1 are secured to ring pole-pieces 2 on the magnet 3 and the cylindrical form of the rotor is completed by a filling of insulating- material 5. The pole-pieces, which may also be laminated, and the fingers may be moulded together in the insulating-material and thereafter assembled' as a unit upon the magnet. Recesses 2<A> in the pole-pieces and similar recesses in the fingers may be provided for holding the insulating- material, and the fingers may be rounded off or parallel as at 1<B>.
Patent GB-911531-A (GB)
Title: Ball nut and screw assembly
IPC: F16H25/22
Filed: 1961-05-31
Abstract: 911,531. Screw-and-nut gearing. GENERAL MOTORS CORPORATION. May 31, 1961 [June 27, 1960], No. 19639/61. Addition to 865,260. Class 80 (3). In a modification of the ball-nut and screw assembly described in the parent Specification, a transfer tube 20 is held in position on a nut 12 by a clamp 26 which, in turn, is held in position on the nut 12 by spacedapart arcuate wire elements 22. Each element 22 has an arcuate portion which is fixed in a groove 18 by hydrogen brazing, and the free end 28 of the arcuate portion is shaped after the element has been fixed in the nut by means of a tool inserted through an orifice 30 in the nut so as to deflect the balls between the helical path and the transfer tube. The opposite end of each element 22 extends through an aperture 38 in the nut and is bent over and soldered to the clamp 26.
Patent GB-793407-A (GB)
Title: Improvements in or relating to ball or roller bearings
IPC: F16C33/78
Filed: 1956-06-25
Abstract: 793,407. Stuffing-box substitutes. ABBEY, A. (Aktiebolaget Svenska Kullagerfabriken). June 25, 1956, No. 19642/56. Class 122 (5). [Also in Group XXXIV] In a ball or roller bearing, sealing means on each side of the bearing comprises an annular rubber member 18, secured to the outer race 12, having two annular axially extending lips 21 which make wiping contact with the base of a channel 25 formed in a plate 23 which is attached to the inner race 10. The rubber member 18 has an annular metal stiffening rib 22 and the inner periphery 24 of the member 18 makes wiping contact with a surface 26 on the inner race 10.
Patent GB-1394824-A (GB)
Title: Production of laminated products
IPC: B32B27/00
Filed: 1971-06-09
Abstract: 1394824 Laminating method IMPERIAL CHEMICAL INDUSTRIES Ltd 30 May 1972 [9 June 1971] 19671/71 Heading B5N A method of making a laminated product comprises the steps of introducing between two laminae a material capable of forming fibres, subjecting the fibre-forming material to conditions such that it becomes fibre-forming and adhesive to the laminae, separating the laminae to a distance such that fibres of material are formed between them and hardening the fibreforming material whilst it adheres to the laminae. The laminae may be the same or different and may be of wood, plywood, chipboard, hardboard, metal, e.g. copper, thermosetting resin, reinforced thermoplastic or thermosetting resin, natural or synthetic rubber, asbestos, leather, glass, ceramic material, regenerated cellulose, textile material, e.g. woven nylon, paper or cardboard. The fibre-forming material may be thermoplastic or thermosetting and may comprise the monomers from which a thermoplastic resin is formed. Specified fibre-forming materials are polyamides, polyesters, polyethylene terephthalate, polycarbonate, a homo- or copolymer of ethylene, propylene, butadiene, vinyl chloride, vinyl acetate, vinylidene chloride, acrylonitrile or styrene, an epoxide, a polyurethane or a phenol-, urea- or melamineformaldehyde resin. The fibre-forming material may be introduced between the laminae in the form of a sheet which may be perforated or freshly extruded; in the form of a foam or as particles. Alternatively, when a polymerizable material is used it may be sprayed or deposited as spots. In a further embodiment, the fibreforming material may be applied to a surface of at least one of the laminae as a discontinuous or continuous layer prior to bringing the laminae together. Separation of the laminae may be effected by vacuum plates or continuous belts between which the assembly is sandwiched. Alternatively, rods or wedges may be used. Hardening of the fibres may be effected during drawing of the fibres either by cooling a thermoplastic material or by curing a thermosetting material. The products of the invention which may comprise more than two laminae with a layer of fibres bonded between each pair of adjacent laminae may, depending on the nature of the laminae and of the fibrous layer, be flexible or rigid. Flexible products may be used as shock absorbing and thermally insulating packaging material, pipe lagging, wall coverings or textile products whilst rigid products may be used as structural units for walls, floors or partitions or as cups, food trays, filters, heat exchangers, mixing devices for fluids or as reaction vessels.
Patent GB-417689-A (GB)
Title: Improvements relating to screw clamping devices for securing the frames of tennis racquet presses and for other purposes
IPC: A63B60/44
Filed: 1933-07-12
Abstract: 417,689. Bolts. APPLEBY, Ltd., J., and APPLEBY, N. C., Tower Road, Aston, Birming- ham. July 12, 1933, No. 19730. [Class 89 (i).] A clamping screw for use in tennis racket presses and other clamping devices comprises a screwed stem a and integral shoulder b, a washer g slidable on the stem being forced by a spring f against a pivotal finger piece e to hold the latter in either of the positions shown in Figs. 1 and 5, respectively. The pivotal pieces d of the finger e which engage in a hole c in the stem a, may be replaced by a single pivot piece extending across the gap h in the finger piece, in which case the end of the stem a is split to allow of insertion of the pivot in the hole c. The stem engages with a nut j formed of a thin tube and provided with indentations o for engagement with the thread of the stem.
Patent GB-209775-A (GB)
Title: Improvements in electric thermionic tubes
IPC: H01J21/20
Filed: 1922-07-19
Abstract: 209,775. Hunter, E. K. July 19, 1922. Vacuum tubes.-A valve for use as an amplifier or relay comprises one or more filaments and a number of grids and anodes which are interconnected by reaction elements such as resistances and capacities mounted within the bulb. The valve shown has a filament 11, two grids 5, 9 and two anodes 6, 8, a capacity 10 being connected between the grid 9 and the anode 8, and a resistance 7 between the two anodes, the leads being brought out to four contact pins only.
Patent GB-614046-A (GB)
Title: Improvements in the treatment and colouring of textile material
IPC: D06M15/423
Filed: 1946-07-02
Abstract: A process for the delustring and/or colouring of fibrous material comprises the application thereto of a mixture in an alcohol-free aqueous medium of a pigment and/or colouring matter and a methyl, ethyl or propyl ether of a precondensate of formaldehyde and an aminotriazine, after which application the material is dried and heated to complete the formation of the resin.  The preferred ether is the tri-methyl ether of tri-methylol melamine.  The pigments may be water-insoluble delustring pigments such as titanium dioxide, blanc fixe, china clay; pigment colours insoluble in aqueous media including pigment dyestuffs, inorganic pigments and lakes and toners derived from soluble dyestuffs; aniline black; dyestuff derivatives and intermediates with or without affinity for the material to which they are to be fixed.  Water soluble dyestuffs include those forming true solutions and those forming colloidal solutions. Impregnation may be complete, or the mixture may be formed into a printing paste and printed and fixed by steaming.  Resist effects may be utilized. The process is applicable to all textile materials, pure and tussore silks, cotton, rayon, nylon and other synthetic fibres.  The finish is resistant to laundering.  In an example 10 parts of a concentrated paste comprising 30 parts of titanium dioxide, 25 parts of the tri-methyl ether of trimethylol melamine, 5 parts powdered gelatine and 40 parts of water (all parts by weight) are mixed with 90 parts water and a viscose filament fabric impregnated in the liquor. Excess liquid is removed, the fabric dried and cured for 10 minutes at 140 DEG  C., resulting in a permanent delustered finish.  In a further example a cotton fabric is printed with a paste of 15 parts Irgalite Yellow GS paste, 7.5 parts of an 80 per cent syrup of trimethyl trimethylol melamine, with gun tragacanth, a dispersing agent and water to 100 parts, and after drying is baked or steamed to fix the print.  Delustring effects may also be produced together with the print.  Specification 614,047 is referred to.
Patent GB-883277-A (GB)
Title: Process for the production of organic hydroperoxides
IPC: C07F3/00
Filed: 1958-06-20
Abstract: Organic peroxides are prepared by treating an aliphatic organometallic compound of zinc, cadmium or mercury with oxygen or an oxygencontaining gas at a temperature in the range -30 DEG C. to +25 DEG C. and converting the resulting peroxide salt to a free hydroperoxide in known manner, e.g. by hydrolysis with water, aqueous solution or acids.  The organo-metallic compounds may be metal alkyls which may be substituted, e.g. by carboxylic ester groups. Polyvalent hydroperoxides may be obtained from organometallic compounds having several metal atoms per molecule.  Butyl zinc chloride, dibutyl zinc, butylcadmium chloride and dibutyl cadmium are prepared as starting materials by reacting appropriate proportions of zinc chloride or cadmium chloride with n-butyl magnesium chloride.
Patent GB-531827-A (GB)
Title: Improvements in or relating to electron discharge valve amplifiers
IPC: H01J43/30
Filed: 1939-07-10
Abstract: 531,827. Valve amplifying circuits. WHITE, E. L. C. July 10, 1939, No. 19989. [Class 40 (v)] The control grid of an electron-multiplier or of a triode or pentode valve operated in such manner that the emission from the cathode is not space-charge limited, is connected back to the anode in such a way that the mean anode current is maintained substantially constant and the signal gain is stabilized. As shown, the valve comprises a cathode 2, control grid 3, screen grid 4, a series of secondary-emitting electrodes 5 ... 8, and an anode 11. The grid 3 is connected to a tap on a potentiometer 15 arranged in series with a battery 16 across the anode 11 and cathode 2. If anode current rises, the anode voltage falls due to the drop in the resistances 12, 13, and a suitable fraction of this fall is applied to the grid to restore the anode current to normal. This action occurs only for slow variations, as the lower part of the potentiometer 15 is shunted at signal frequency by a lowimpedance input circuit including the condenser 17. The Specification shows that, owing to the exponential relation between anode current and grid volts in a valve operating without spacecharge limitation, the mutual conductance of the valve is constant if the mean anode current is constant. Specification 481,996 is referred to.
Patent GB-1112271-A (GB)
Title: Friction device employing wear compensating means
IPC: F16D23/12
Filed: 1965-05-12
Abstract: 1,112,271. Clutch control. BORG-WARNER CORPORATION. 12 May, 1965 [12 Aug., 1964], No. 20086/65. Heading F2L. A friction clutch has automatic wear compensating means incorporated in its actuating linkage. As shown, a friction clutch A is engaged by a remote spring D-1 which pivots a lever 51 anticlockwise about a fixed pivot 52, the lever 51 acting through an adjustable link H, I, which constitutes the wear compensator W, and a lever G to shift a bearing 72 towards the clutch plates to engage the clutch. A clutch pedal D-2 is connected to the lever 51 by a flexible cable 56 and can be depressed to pivot the lever 51 clockwise to disengage the clutch. The wear adjuster comprises an internally screw-threaded sleeve H which is non-rotatably mounted on the lever 51 by a pivot pin 69, and an externally threaded rod I having a one-way drive means J, Fig. 7, in the form of a helical spring coiled about the threads of the rod I and having a terminal finger 91 extending therefrom and engaged by ears 78, 77 of an. arm K fast with the lever 51, Fig. 4, at the ends of the engaging and disengaging strokes of the lever 51. On the occurrence of wear in the clutch plates, gear 77 of the arm K engages the finger 91 of the spring and rotates it relatively to the rod I. On disengaging the clutch the ear 78 engages the finger 91 and thus locks the spring to the rod I and rotates the rod relative to the sleeve H to extend the link H, I and thus compensates for wear in the clutch plates. In modifications suitable for clutches engaged by internal coilsprings or by a diaphragm spring, in which the clutch is disengaged by a bearing when it is moved towards the clutch plates, the link H, I is arranged to shorten to compensate for wear of the plates.
Patent GB-1075035-A (GB)
Title: Method of barring an electric motor
IPC: H02K15/12
Filed: 1965-05-12
Abstract: 1,075,035. Control of A.C. motors; cooling electric motors; frequency changing. BRUCE PEEBLES INDUSTRIES Ltd., and H. E. C. CLAPHAM. May 11, 1966 [May 12, 1965], No. 20097/65. Headings H2A, H2F and H2J. [Also in Division F1] A submersible three-phase induction motor and boiler feed pump combination is rotated at slow speed when otherwise inoperative, to equalize heating, by supplying it with current at a low frequency, e.g. 1 c.p.s. The low frequency is derived from the normal supply by an arrangement in which graduated voltages from the tapped secondary of a transformer. (41, Fig. 2, not shown) are selectively connected to the motor (45) by a rotatable switch (43) driven at an appropriate slow speed by a separate electric motor. The fixed contacts of the switch are of differing angular extent to produce an approximately sinusoidal waveform, and rectifiers (42) improve commutation as also does a resistor network (44) across the output. The motor is cooled by water circulated around the windings by an impeller (27) and through ducts between core and casing (16) to an external cooler (not shown) through an outlet (28). Mixing of high-temperature pump water with the cooling water is restricted by a collar (33).
Patent GB-651584-A (GB)
Title: Improvements relating to the manufacture of loom pickers
IPC: D03D49/36
Filed: 1948-07-28
Abstract: 651,584. Loom pickers. SUTCLIFFE, A., and BRITISH PICKER CO,., Ltd. July 28. 1948, No. 20103. [Class 142(iii)] A loom picker made from raw or buffalo hide is allowed to retain a predetermined percentage of moisture from the liquid used for softening it before pressing to shape and is then coated with cellulose acetate or other substance to seal the moisture and form a dry covering. The picker may also be soaked in a suitable lubricant before sealing.