baber/WOPTO huggingface dataset:
Patent GB-1342696-A (GB)
Title: Fibrous thermal insulation and method for preparing same
IPC: F16L59/00
Filed: 1972-03-06
Abstract: 1342696 Thermal insulation UNITED STATES ATOMIC ENERGY COMMISSION 6 March 1972 [7 April 1971] 10278/72 Heading C1J Thermal insulation for use at high temperatures and having a density of 10-25 pounds per cubic foot is made by moulding a slurry of inorganic fibres, impregnating the moulded fibres with an organic sol binder, gelatinizing the sol, curing the gelatinized binder, drying the composite and heating it under oxidizing conditions. A slurry of silica fibres is moulded under vacuum and the impregnated under vacuum with a silica sol in water or an ethanolwater mixture, the impregnated fibres are treated with ammonium carbonate, sodium hydroxide or gaseous ammonia to gelatinize the binder, the composite is then cured in an air-tight bag at 95‹ C., dried at 95‹ C. and fired in air at 1000‹ C. The silica sol can be formed by hydrolysing a chloride, fluoride or ester of orthosilicic acid, e.g. ethyl silicate, or by the ionexchange removal of sodium from a sodium silicate solution. Titanium dioxide particles of 1 to 5 microns can be incorporated as an opacifier by mixing them with the slurry of fibres to be moulded. Composites can also be made from a slurry of zirconia fibres using a gelatinizable sol of zirconia as the binder.
Patent GB-281926-A (GB)
Title: Improvements in electric circuit breakers or contactors
IPC: H01H50/64
Filed: 1927-04-14
Abstract: 281,926. Whipp, F., and Whipp & Bourne, Ltd. April 14, 1927. Electromagnetic switches; switches, actuating. -In order to prevent the opening or closing of electromagnetic switches or contacts by vibration, a pair of cores controlled simultaneously by a solenoid or solenoids are interconnected at their outer ends bv bell-crank levers, one arm of each lever forming a member of a toggle mechanism extending between a pair of switch arms which are thereby moved simultaneously in opposite directions. As shown in the Figure the cores b controlled by a common solenoid a have their outer ends joined to the arms d of bell crank levers which are pivoted at points g to contact-carrying lever h pivoted at i, arms e of the bell crank levers forming toggle members and being interconnected by a pin f. With this arrangement any shock tending to cause engagement or disengagement of one contact lever will produce an opposite effect on the other. From the closed position shown the switches are moved to the " off " position shown in dotted lines on de-energization of the electromagnet a by a spring connected between the pivot pin f and a fixed point or by any other suitable spring arrangement. On energization of the electromagnet attraction of the cores b moves the contact arms into engagement with the fixed terminals m cramping the toggle arms. The solenoid a may be replaced by two separately wound solenoids each controlling one of the cores b.
Patent GB-632518-A (GB)
Title: Improvements in or relating to the recovery of ammonia from gases containing it and the recovery of iron from waste pickle liquor
IPC: C01G49/00
Filed: 1947-04-18
Abstract: <PICT:0632518/III/1> Ammonia is recovered as ammonium sulphate from gases, such as coke oven gases, containing ammonia and hydrogen sulphide and iron values are recovered from pickle liquor containing free sulphuric acid and ferrous sulphate by intimately contacting a feed liquor containing ammonium sulphate and the pickle liquor with such gas to precipitate at least a major portion of the iron and to form ammonium sulphate, and separating the liquor containing the dissolved ammonium sulphate from the precipitate, which comprises ferrous hydroxide, ferrous sulphide and ammonium ferroferrocyanide when unpurified coke oven gas is used.  According to the drawing, a feed liquor, comprising pickle liquor from tank 1, partially neutralized pickle liquor from an ammonia recovery tank 38 and recycled liquor from filtrate tank 20, is passed from tank 5 through an absorber 8 and a reactor 13 in countercurrent flow to coke oven gas from 24.  Substantially all ammonia from the gas leaving 13 is removed in absorber 8 by neutralization of the free sulphuric acid in the feed liquor, while the major portion of the iron in the feed liquor is precipitated in the reactor 13. Solution withdrawn from 13 is pumped to a decanter 18, and optionally a filter 19, from which 60-90 per cent of the separated liquor is recycled and blended with raw pickle liquor in 5 and the remainder is passed to an oxidizer 30 wherein air is admitted at 32, and if necessary additional ammonia at 31, to precipitate ferric hydroxide, which is removed in decanter 34, leaving a clear liquor from which crystalline ammonium sulphate may be recovered in known manner.  Unused ammonia from the oxidizer is absorbed in fresh pickle liquor in tank 38.  The precipitate from filter 19 or decanter 18 and containing primarily ferrous hydroxide and sulphide, may, after washing, be converted into ferric oxide. The gas may be contacted with the liquor in saturator type chambers in which the precipitate is maintained suspended in the liquor by agitation; and heat may be added to the system by heating the gas in a reheater 241 and a preheater 27 or by heating the feed liquor before entering the absorber.  Specification 632,519 is referred to.
Patent GB-387171-A (GB)
Title: Improvements in or relating to wads or wadding for whale guns, or the like
IPC: F42B7/08
Filed: 1932-04-12
Abstract: 387,171. Cartridges and wads for whaling. BROFELTH, G. E., Halmstad, Sweden. April 12, 1932, No. 10496. Convention date, April 13, 1931. [Class 9 (i).] Relates to wads intended for whaling guns and of the kind comprising a number of discs 2, 3, Fig. 2, held between end-pieces 1, 4 of rubber or the like, for example by an axial wire. According to the invention, the discs 2, 3 are made alternately of larger and smaller diameters, the larger discs being of soft or resilient material, or concave or convex, as shown at 2b, 3b, Fig. 4, and 2d, 3d, Fig. 6. The periphery of the discs may be cylindrical or conical. The rear piece 4 may be formed with circumferential grooves 7, or may be built up of discs of diameters alternately larger and smaller. A pasteboard cup 5 is attached to the rear piece 4 and receives the powder charge which is tied therein by cords 6.
Patent GB-105445-A (GB)
IPC: D06B3/08
Abstract: 105,445. Partridge, S. S. May 24, 1916. Hank type.-In machines for dyeing hanks, of the kind described in Specifications 8570/04 and 3114/14, in which a hank-carrying frame is given a vertica reciprocating movement, the frame is at the sane time reciprocated horizontally. The frame B having hank-poles 1, 2 is suspended from a beam C reciprocated vertically by slides 3, 4 from a frame 30 fulcrumed at the back of the vat and resting at the front on crank-pins 29 on wheels 27, 28 rotated from the shaft 20. To reciprocate the frame horizontally, the shaft 20 carries a worm 19 rotating a worm-wheel 18 having a crankpin 14 engaging a slot 13 in a lever 10 pivoted at 11 in brackets carried by the slide 3 and attached at the upper end, through a connecting-rod 22, to the beam C.
Patent GB-399237-A (GB)
Title: Improvements in or relating to permanent magnets
IPC: H04R9/02
Filed: 1932-04-14
Abstract: 399,237. Making permanent magnets. DARWINS, Ltd. and BROWN, W., Fitzwilliam Works, Templeborough, Sheffield. April 14, 1932, No. 10661. [Classes 83 (ii) and 83 (iv).] Welding.-Pole shoes or pole pieces are electrically welded to the hardened steel permanent magnets of moving coil loud speakers &c., through distance pieces of restricted area so as to localize the welds and avoid loss of magnetic efficiency due to over heating. The junction surfaces are brought into magnetic contact with one another over the whole of their area by the pressure applied during welding. The projection 14, which may be provided with recesses 16 or co-operate with recesses in the other part to receive surplus metal, may be formed integral with the pole-piece 10 or with the magnet 11 or separate pieces may be placed in recesses in either or both of the parts. The projection may be produced in the form shown in Fig. 2, by pressing between a punch 21 and a die having a recess 18 and flange 19, or the punch may consist of a trade mark, letter, figure, &c. to denote origin, so as to form a projection of similar shape while leaving the design impressed in the upper surface of the part after welding. The distance pieces may be round, square or oval, or may consist of discs surrounded by grooves, or may consist of small pips, studs or rims, which may be left when making the polepieces by a turning operation.
Patent GB-1362961-A (GB)
Title: Load carrying vehicles
IPC: B60P1/04
Filed: 1972-04-12
Abstract: 1362961 Unloading vehicles E S THORNTON and K A GARNETT [trading as THORNTON & GARNETT] 12 April 1972 [22 April 1971] 10685/71 Heading B8E [Also in Division B7] A vehicle 10, Fig. 1, with a tipping body 14 which is V-shaped in cross-section has an adjustable gate 20, Fig. 3, for controlling discharge through a hole 19 at the rear of the vehicle and an endless conveyer 28 supported on a beam 22 which is pivotable about a horizontal axis 23 and a vertical axis 24. The wheels 12 are driven from the power-take-off of the tractor and the body is tipped by a ram 17. A ram 21 controls the gate 20. An indicator 31 moves with the gate and shows its position on scales 32. When the body is tipped a hook 29, Fig. 4, can engage a member 30 so that when the body is moved to its untipped position the conveyer is raised to the position shown for transport. An adjustable stop 27 limits downward pivoting of the beam 22.
Patent GB-107007-A (GB)
IPC: H01F1/24
Abstract: 107,007. Western Electric Co., (Assignees of Woodruff, J. C.). May 26, 1916, [Convention date]. Electro-magnets.-Cores for Pupin loading coils, magnets, and the like are made from iron particles by successively comminuting, coating with some other metal, insulating and compressing the particles. The iron, preferably electrolytic, is ground in a ball mill and annealed by heating in a furnace. The annealed iron particles are then coated with zinc, lead, aluminium, &c. by shaking them up with pieces of the metal and are afterwards coated with shellac. The insulated particles are compressed into masses from which the cores are formed or directly into the desired form of core. The specific gravity of the cores is approximately 7.
Patent GB-235531-A (GB)
Title: Improvements in table driving mechanism for circular grinding machines
IPC: B24B47/06
Filed: 1925-04-24
Abstract: 235,531. Mayer & Schmidt Schleifmaschinen-u. Schmirgelwerke Akt.- Ges. June 10, 1924, [Convention date]. Driving and feed devices.-The reciprocating table of a cylindrical grinding machine is driven through toothed gearing by a rotary fluid motor, and a controlling valve is provided whereby the movement of the table is reversed, valve gear also being provided for varying the time the table stops at each end of a stroke of the table. In a casing 1 on the machine bed is mounted a rotary pump 2 feeding a, rotary motor 3 through a pipe 5 and a valve 6. The shaft 7 of the motor carries a clutch 8, and on a shaft 7<1> is a pinion 9 with clutch faces at its ends, so that by engagement with the clutch 8, the motor drives the pinion, and through a rack 12, the table 13, and by engagement with a clutch 14, the pinion and the table may be driven by hand. The valve 6 is rotated by a shaft 19 carrying a lever 20, which is engaged by stops 21 on a lever 17, and which engages, by stops 52, a lever 53 loose on the shaft 19. The lever 17 is moved by dogs on the machine table and also has a cam part 22 engaged by a spring plunger 23, whereby when the lever 17 has been moved about onehalf of the angle a, Fig. 9, by a dog on the table, it is thrown over the whole angle, thus also moving the lever 20 and closing the valve 6. The table now remains stationary until the valve is opened by a rotating roller 29, which lifts a lever 42 slidably keyed on a hollow shaft 43, and thus moves a lever 44 on the shaft to press forward a spring plunger 45. This plunger engages the lever 53 and moves it to engage and move the lever 20 and thus open the valve to allow reverse rotation of the. motor. The roller 29 is loosely mounted upon a continuously rotating shaft 27 and is held stationary by a notched plate 30 and a lever 32 until, upon depression of the plunger 23 near the end of a stroke of the table, a pin 34 on the plunger removes the lever 32 from the plate 30, a cam part of the lever also actuating a lever 37 to clutch the roller to the shaft 27. The roller is shaped as shown in Fig. 6, so that by movement of the lever 42 along the roller by a screw 49 the table can be stopped at each end of a stroke for any required length of time.
Patent GB-436382-A (GB)
Title: Improvements in spirally ribbed grinding wheels
IPC: B23G5/00
Filed: 1934-04-10
Abstract: 436,382. Grinding screw - threads. ATKINS, J. H. C., Hill Royd, Steeple Gidding, Huntingdonshire. April 10, 1934, No. 10752. [Class 60] A spirally ribbed grinding - wheel for grinding screw threads 9 on part only of a shank 10 has the run out portion or portions of the rib or ribs 2 arranged, as shown at 3, 4, to recede gradually towards the centre of the wheel in the manner of an inwardly directed volute so that the crest of the extremity of each run out portion is level with or slightly below the root of the adjacent convolution of the rib. The run out portions may extend for approximately a quarter of a convolution, and the angle between the flanks of the run out portion remains constant. To preserve balance the two run out portions of the rib are disposed diametrally opposite.
Patent GB-1062732-A (GB)
Title: Improvements in or relating to knitting
IPC: D04B1/00
Filed: 1964-03-13
Abstract: 1,062,732. Knitting. FRENCH KNIT PTY. Ltd. March 13, 1964 [Oct. 14, 1963], No. 10828/64. Headings D1C and D1K. An inelastic thread 19 is laid in between the rib and plain loops of each course of a fabric knitted on a cylinder and dial machine the thread being fed under such tension as to be closely gripped by the loops during the knitting to an extent which imparts come-back when the fabric is stretched in the direction of its warp. A bush 20 or toothed wheel may be used to insert the thread in the fabric. Alternatively the thread guide may be positioned close to the needles to guide the thread into the position in which it is enveloped by the loops, and, to avoid damage to the needles or guide, the guide may be of a flexible nature so as to be readily deflected in the event of it being struck by the needles.
Patent GB-430115-A (GB)
Title: Improvements in machines for chipping or slicing potatoes or the like
IPC: B26D3/18
Filed: 1934-04-11
Abstract: 430,115. Cutting potatoes &c. DRAKE, E., and DRAKE, F., Dennis Court, Green Lane, Halifax. April 11, 1934, No. 10850. [Class 5 (i)] The grid-like plunger H of a chip potato machine is connected by links O to the elbow of a bell-crank operating lever J of which the short arm J<1> is pivoted at its end on a pin L housed in the machine frame B. The short arm J<1> is forked and a rod T is pivoted on a pin S within the fork, the rod being provided with a washer W and adjusting nut V. A spring X mounted on the rod T is compressed between the washer W and the base of the machine on the down stroke of the lever. The plunger H carries sleeves G sliding on vertical guide rods E.
Patent GB-245650-A (GB)
Title: Improvements in or relating to balanced pivoted disc valves
IPC: F16K1/226
Filed: 1925-04-27
Abstract: 245,650. Glenfield & Kennedy, Ltd., and Ball, E. B. April 27, 1925. C l o sure e members. hinged. - In a pivoted disc valve a fluid-tight joint between the valve A and its seating B on the inner surface of the casing is formed by a projecting rim of rubber or like compressible material E. The packing rim may be formed by pressing the rubber whilst in a plastic state into a peripheral groove in the disc and subsequently vulcanizing the same, as in Fig. 3. Alternatively, the rubber rim may be secured by a junk ring F, as in Fig. 5. The rim may be flanged in cross section with the flange disposed so that the pressure of the fluid forces the rim in close contact with the seating.
Patent GB-1136025-A (GB)
Title: Improvements in or relating to stabilized stannous salts
IPC: C07C51/50
Filed: 1966-03-14
Abstract: 1,136,025. Stabilization of stannous carboxylates. TENNECO CHEMICALS Inc. 14 March, 1966 [15 March, 1965], No. 11164/66. Heading C2C. A stabilized stannous salt composition comprises a stannous salt of an aliphatic monocarboxylic acid having from 6 to 18 carbon atoms or of an aliphatic dicarboxylic acid having from 4 to 10 carbon atoms and as a stabilizer 0À1% to 3% based on the weight of the stannous salt, of an alkylhydroquinone having the structure: wherein R is an alkyl group having from 1 to 6 carbon atoms and R<SP>1</SP> represents hydrogen or an alkyl group having from 1 to 6 carbon atoms. The preferred stannous salts are those of 2-ethylhexoic and oleic acid while those of hexoic, n-octoic, decanoic, lauric, myristic, succinic, glutaric, adipic, azelaic and sebacic acids are also specified. The exemplified alkylhydroquinones are ter-butyl-, 2-methyl-, 2,5- di(ter-butyl)- and 2,5-di(ter-amyl) -hydroquinone while ethyl-, isopropyl-, ter-amyl, n-hexyl dimethyl-, di-n-propyl and di-hexyl-hydroquinone and mixtures thereof are also specified. The compositions, which are used as catalysts in the production of polyurethanes, may also include, e.g. tertiary amines, water, surfactants, solvents and colouring agents.
Patent GB-581956-A (GB)
Title: Improvements relating to air impellers or fans
IPC: F04D29/38
Filed: 1944-06-12
Abstract: 581,956. Screw fans. COLLINS, J. N. June 12, 1944, No. 11171. Drawings to Specification. [Class 110 (i)] An axial flow fan comprises vanes each consisting of a number of wires or rods extending between the hub and peripheral rim of the fan and covered with a wrapping of flexible material such as thin strip metal, wire, insulating tape, string, or the like. The pitch of the vanes may vary from the inner to the outer ends.
Patent GB-790235-A (GB)
Title: Improvements in and relating to subaqueous sound-transmitting apparatus
Inventor: LAGER FREDERICK JOHN WILKINS
IPC: G08C23/02
Filed: 1955-04-19
Abstract: 790,235. Subaqueous audible and link signalling apparatus. TELECOMMUNICATION INSTRUMENTS, Ltd. March 5, 1956 [April 19, 1955], No. 11231/55. Class 118 (2). Apparatus for automatically transmitting sound waves from a subaqueous position whereby the depth of such position may be determined, comprises a quartz crystal or other transducer, a battery-operated ultrasonic oscillator for energizing said transducer, and means for modulating said oscillator at a frequency dependent upon the depth of submersion of the apparatus. A watertight casing a incorporates an R.C. oscillator b coupled via an amplifier and suitable circuit c for applying square waves to an ultrasonic oscillator d driving a quartz crystal transducer e. The oscillator b modulates the oscillator d at a frequency determined by the setting of a potentiometer arm coupled to a Bourdon tube f acted upon by the prevailing hydrostatic pressure due to the depth of submersion of the casing a. Thus the number of pulses transmitted per second is a function of the submerged depth. Instead of a potentiometer control of oscillator b, a variable inductor or capacitor may be used. A battery g supplies power and a pressure-operated switch h may be incorporated so that the supply is not switched on till a predetermined depth has been attained. The device may be used to indicate the depth of a trawl, or as a submerged sea beacon. The receiver (Fig. 2, not shown) may comprise a plurality of dekatron type valves arranged as a pulse counting device which is gated to receive pulses for one second periods. and display the result.
Patent GB-673486-A (GB)
Title: Improvements in or relating to apparatus for the distribution of stable manure or the like
IPC: A01C3/06
Filed: 1950-05-05
Abstract: 673,486. Vehicles equipped with conveyers for unloading; drop-bottom vehicle bodies. RESSELY, O. May 5, 1950. [May 11, 1949] No. 11232/50. Class 78 (iv). [Also in Group I] Manure is distributed over the ground by apparatus comprising a travelling receptacle 11 whose floor is composed of a number of doors adapted to be opened one after another for successive discharge by gravity of portions of the load of manure. The machine shown is divided into upper and lower compartments 13 and the floor 12 of each compartment is divided into four parts of equal width, each part being in the form of a grating. The tines 16 of each grating extend from carriers 15 threaded on each end of a spindle 17, the threads at the opposite ends of each spindle being of opposite hand. Each spindle carries a fixed sprocket 20 and a loose sprocket 21, each fitted with clutch elements, and each sprocket 21 is connected by a driving chain 29 to the sprocket 20 on an adjacent shaft ; the right-hand end shaft of the lower compartment is connected in this way to the shaft above it as shown in Fig. 1. The sprocket 20 at the left hand end of the lower compartment is driven from the shaft 25 of the land wheels 24, which shaft is fitted with a clutch 27. In operation, when the clutch 27 is engaged the tines 16 of the lower lefthand shaft are moved outwards by the rotation of the corresponding shaft 17 and the portion of the load above these tines discharges by gravity on to a conveyer belt 30 fitted with spikes 33, the conveyer discharging the load on to a platform 31 which is given an up and down movement by a cam 32 driven by the shaft 25. When the carrier 15 reaches the end of its travel it closes the clutch elements on the sprockets 20, 21, to couple the driven end shaft 17 with the adjacent shaft, and the operation is thus repeated for the adjacent section of the lower compartment, and continued until all eight sections of the two compartments are emptied. The floors are returned to the positions shown hy bandies 22 on the spindles 7.
Patent GB-1091493-A (GB)
Title: Storage racks
Inventor: PREECE KENNETH
IPC: B65G1/02
Filed: 1965-03-17
Abstract: 1,091,493. Racks. JOSEPH LUCAS (INDUSTRIES) Ltd. Feb. 28, 1966 [March 17, 1965], No. 11265/65. Heading A4H. A storage rack comprises a framework of girders forming a plurality of opentopped compartments and curved flaps (17) hinged at different levels to the sides of the compartments and serving as supports for coils of strip metal.