baber/WOPTO huggingface dataset:
Patent GB-925014-A (GB)
Title: Improvements relating to impedance protective systems
Inventor: MORTLOCK JOSEPH RONALD
IPC: H02H3/38
Filed: 1958-09-03
Abstract: 925,014. Protective arrangements. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 19, 1959 [Sept. 3, 1958], No. 28332/58. Class 38 (5). An impedance protective arrangement includes a linear mutual inductor 9 having a primary winding carrying the current in the protected circuit 1 and a non-ferro-magnetic core, the inductor providing a voltage quantity proportional to the rate of change of the current. When the phase relationship of the vector difference between this voltage quantity and a voltage proportional to the circuit voltage with respect to a voltage corresponding to the circuit voltage reverses in successive half-cycles, due to a fault, a protective relay is energized without error due to D.C. offset. In Fig. 2, the output of the inductor is applied to an amplifier 12 to produce the voltage quantity specified above, and to an integrating and amplifying circuit 10 which in conjunction with a resistor 11 produces a voltage component corresponding to the resistive component of the line voltage. This component is added to the above quantity to achieve accuracy when the circuit resistance may be an appreciable fraction of the total fault impedance. The sum and the output of a voltage transformer are supplied to a transistorized relay arrangement 3 which controls the energization of the trip coil 5 of a circuit-breaker 2. The relay arrangement 3 includes auxiliary transformers interconnected to produce the vector difference referred to above. It also includes coincidence transistor circuits which effect phase comparisons for both the negative and positive halfcycles of the input voltages and energize a relay controlling the trip coil 5 only when the appropriate phase-relationship exists on both half-cycles. Fig. 3 (not shown), illustrates the relay arrangement 3 which is described in the Specification.
Patent GB-503185-A (GB)
Title: Improved garment stiffeners, boning or stays
IPC: A41C1/14
Filed: 1938-09-29
Abstract: 503,185. Garment stiffeners. ETABLISSEMENTS WEEKS SOC. ANON. Sept. 29, 1938, No. 28354. Convention date, Nov. 12, 1937. [Class 141] [Also in Group VIII] A garment stiffener or stay comprises a commercial metallic strip 1 having its edges untreated to remove their roughness covered with plastic material 3 in which is embedded a netlike reinforcement 4 surromding both edges and faces of the strip. The net-like reinforcement may be a loosely woven fabric of natural or artificial cellulose threads, metal threads, or mixtures, and the plastic may be a pyroxylin composition applied by extrusion. The quantity of the plastic or the position of the fabric may be adjusted to give a rough surface. End-protecting tips may be applied.
Patent GB-241739-A (GB)
Title: Rotor windmills
IPC: F03D3/00
Filed: 1924-11-26
Abstract: 241,739. Watson, G. Nov. 26, 1924. Current motors; regulating. -In wind motors having rotor vanes 1 arranged radially to the shaft 2 and utilizing the so-called Magnus effect, and wherein the wind power itself is used to cause the rotor vanes to revolve on their own axes, friction rollers 7 for rotating the vanes 1 are driven by engagement with a fixed friction ring 5. Alternatively, the members 5, 7 may be toothed gears. For starting the motor, ordinary screw vanes 8 are provided on the same or an independent wind-wheel, and these vanes may be arranged outside or inside the ring of rotor vanes 1. The rotor vanes may be cylindrical or conical. Regulation may be effected by varying the effective diameter of the friction ring 5, or by regulating the amount of the friction slip, or by turning the motor more or less out of the wind, or by allowing the ring 5 to revolve under the control of an automatic brake. The motor may drive a screw or paddle-wheels for ship propulsion.
Patent GB-954849-A (GB)
Title: Production of silicon
Inventor: HOLLOWS FRANK BRIAN
IPC: C01B33/02
Filed: 1961-08-04
Abstract: Apparatus for casting silicon comprises a silica melting-vessel 1 containing a silica siphon tube 5 whose longer limb projects into a subjacent vertical tubular silica mould 6 which is closed at its base by, e.g. a Ta cap, and encased in an annular jacket 8 of heat-insulating material, e.g. quartz fibre, which tapers downwards at its outer surface. Electromagnetic heating employing work coil 4 is preferably used. The internal surface of mould 6 is preferably coated with carbon black. The whole apparatus is mounted in a gas-tight <PICT:0954849/C1/1> enclosure which may be flushed with inert gas, e.g. argon. The cast Si rod freezes in the mould from the base upwards and after withdrawal from the mould may be acid-etched with HNO3 + HF to remove carbon.
Patent GB-931650-A (GB)
Title: Method of and apparatus for speech compression and the like
IPC: H04B1/66
Filed: 1961-08-04
Abstract: 931,650. Bandwidth compression systems. BOLT BERANEK & NEWMAN Inc. Aug. 4, 1961 [Aug. 26, 1960], No. 28485/61. Drawings to Specification. Class 40 (4). In a bandwidth compression system the signal is sampled in the frequency domain by extracting from the signal frequency band a number of frequency-separated sub-bands, the sub-bands either being modulated and transmitted contiguously or modulated to the same frequeny band, and time division multiplexed on to one line. In the described embodiments only the frequency bands 100-600 c/s., 1100-1600 c/s. and 2100-2600 c/s. of a speech signal are transmitted, the bands being modulated to occupy the band from 10,100 to 11,600 c/s. for transmission, or alternatively each band may be modulated to the same frequency band, e.g. 12,100 to 12,600, and time division multiplexed on to the same line. It is suggested that more bands, e.g. 6, of smaller bandwidths, e.g. 100 c/s., may be used and the transmission take place at higher frequencies, e.g. 200 kc/s.
Patent GB-233487-A (GB)
Title: Improvements in or relating to the manufacture of filaments for electric lamps, thermionic tubes and the like
IPC: H01J9/04
Filed: 1923-11-12
Abstract: 233,487. Bullimore, W. R. Nov. 12, 1923. Filaments.-A filament for a lamp in which ionization occurs is formed by mixing one or more oxides of the alkaline-earth metals with an agglutinant such as uncarbonized cellulose, and forming the mixture into a filament which is then sintered; or the oxide may be coated on a filament of dried but uncarbonized cellulose and the coated filament sintered. The filament mav be squirted through dies and sintered by heating to 1200‹ C. in an inert atmosphere, or the filament may be packed in graphite or magnesite so as to exclude air. The coating may be effected as described in Specification 233,374, [Class 39 (i), Electric lamps, Arc &c.]. According to the Provisional Specification, compounds of the alkalineearth metals mav be used.
Patent GB-498706-A (GB)
Title: Improvements in or connected with conveyors of the belt type
IPC: B65G45/00
Filed: 1937-10-20
Abstract: 498,706. Endless - belt conveyers. MAVOR & COULSON, Ltd., and THOMSON, J. Oct. 20, 1937, Nos. 28540 and 33438. [Class 78 (i)] In an endless-belt conveyer A provided with means whereby spillage can be cleared off the lower run and returned to the top run, the spillage return unit B, Fig. 2, comprises a transverse casing C containing auxiliary scraper chain conveyers D, E. The upper run of the conveyer E travels over a plate forming part of a closed frame through which pass the shafts of the sprockets 10, 11. The upper shaft is journalled in fixed bearings, and the frame can turn about it, stops F2 being provided to limit the downward movement. The scrapers 9 of the conveyer D push the spillage through the space between the conveyers D, E into a chamber in which it accumulates until its depth is sufficient for it to be removed by the conveying run of the conveyer E. The conveyer E lifts to permit the passage of spillage of abnormal size. In a modification, Fig. 5, the auxiliary conveyers D<1>, E<1> are belts, and an inclined plate 25 is provided in front of the return drum 26 of the belt D<1> to cause an accumulation of spillage near the lower end of the conveyor E'. Specifications 428,056 and 465,471 are referred to.
Patent GB-990579-A (GB)
Title: Polyesters
IPC: C08G63/685
Filed: 1961-08-08
Abstract: A polyester is formed by condensing a polycarboxylic acid or ester-forming derivative thereof with a polyhydric alcohol or ester-forming derivative thereof, which is or contains N-tert-butyldiethanolamine or N-tert-butyldiisopropanolamine. Lists of suitable polycaroxylic acids and polyhydric alcohols are given. Unsaturated polycarboxylic acids may be used to give unsaturated polyesters which may be mixed with copolymerizable monomers, several of which are mentioned, and with a stabilizer, e.g. quinone, hydroquinone, pyrocatechol, resorcinol or aniline. The mixtures may be copolymerized, e.g. with benzoyl peroxide in casting, moulding or laminating applications.  The polyesters may have terminal OH or COOH groups, or, if monohydric alcohols are used in the reaction mixture may have no terminal functionality. Polyesters with terminal functional groups may be reacted, e.g. with organic polyisocyanates, if desired together with water to give cellular products. Polyesters of aromatic polycarboxylic acids may be used for fibres, films or sheets, which have good dyeability. The dyeing properties of the polyesters may be enhanced by quaternization of their tert-amine groups.  Treated with acidic aqueous solutions the polyesters may be solubilsed for use in aqueous coating compositions. They may be used as plasticizers, and stabilizers, e.g. for vinyl halide polymers or copolymers, and also as additives to lubricants, hydraulic or heat transfer liquids.  Examples describe polyesters from N-t-butyldiethanolamine and (1), (2) trimethylolethane and adipic acid with or without sebacic acid, (3) glycerol and adipic acid, (4) adipic acid, (5) 2-ethyl hexanol and sebacic acid (6) 2-ethyl hexanol, propylene glycol and sebacic acid (12) ethylene glycol and dimethyl terephthalate.  Fibres were melt spun from the product, (13) hexane-1,6-diol and dimethyl terephthalate. Examples 7-9 uses tert-butyl-bis-(2-hydroxypropyl amine together with (7) maleic and phthalic anhydrides, (8) itaconic acid and phthalic anhydride, (9) fumaric acid and phthalic anhydride.  In Example (10) the polyester of Example (7) is mixed with quinone and methyl methacrylate and cured with benzoyl peroxide, and in Example (11) copolymers are similarly prepared, using ethyl methacrylate, methyl acrylate, vinyl acetate or styrene as comonomers.ALSO:Polyesters containing residues of N-t.-butyldiethanolamine or N-tert.-butyl-diisopropanolamine may be added to hydraulic or heat transfer fluids, or mineral or synthetic lubricants and act as sludge dispersants and V.I. improvers. Examples 5, 6 describe oily polyesters from t.-butyldiethanolamine sebacic acid and either 2-ethyl hexanol or a mixture of 2-ethyl hexanol and propylene glycol, which show sludge-dispersant properties in hydrocarbon lubricants.
Patent GB-337138-A (GB)
Title: Improvements in or relating to resilient bearing arrangements, applicable particularly to vehicles
IPC: B60G11/12
Filed: 1929-09-21
Abstract: 337,138. Thornycroft & Co., Ltd., J. I., and Barford, V. G. Sept. 21, 1929. Laminated springs.- In a resilient mounting, more particularly for attaching leaf springs to the chassis of a vehicle, of the type comprising a bush of rubber or like resilient t material interposed between an inner metal member or pin and an outer sleeve so as to be torsionally flexed by relative pivotal movements of the pin and sleeve, the ends of the pin and its associated shackles are so formed that by means of pressure applied axially, the pin and the shackles become firmly wedged together in a non-rotatable manner. As applied to the connection of the eye 10<a> of a leaf spring 10 by shackles 5, 6 to a bracket 1 on a vehicle chassis, rubber bushes 3, 8 are interposed respectively between pins 2, 7 and sleeves 4, 9, and the pins 2, 7 are formed with tapered ends 2<a>, 2<b>, 7<a>, 7b engaging similarly-shaped holes in the shackles 5, 6, which are rigidly fixed to the pins by means of a bolt 11, nut 12, and spring washer 13. In the attachment of the end of a spring to the dumb iron of a chassis. a single pin with rubber bush carrying the eye of the spring passes through the centre of a pair of shackles, which are rigidly fixed to the pin and to the dumb iron by means of a bolt at each end of the shackles.
Patent GB-191868-A (GB)
Title: Improvements in the propulsion and manoeuvring of ships and aircraft
IPC: B63H25/38
Filed: 1921-10-29
Abstract: 191,868. Rees, E. S. G. Oct. 29, 1921. Propelling, steering, and manoeuvring by water jets and aerial propellers.-In screw propeller apparatus for ships whereon an augmenter tube with controllable pallets is placed behind the propeller, such tubes are formed with a pressure chamber at the rear end. The tube which is of circular section at the propeller end, and gradually merges into a rectangular section aft, has its sides a, a<1>, Fig. 4<a>, bent into arcs with a common centre within which is rotatably mounted a section b of a cylinder cut away at c, c<1> to form a nozzle. For submarines the movable part and its fixed guides may be of spherical form instead of cylindrical. For providing a nozzle of variable area and reversal the controlled member may be in two b<1>, b<2>, Fig. 5a moving over external guides. In the position shown, forwardly directed nozzles d<1>, d<2> are formed for directing the propeller-stream ahead and reversing the ship. In the arrangement Fig. 6<c> the segments are piloted at points which are eccentric to the centre of curvature whereby there is a nozzle b<0> between the parts directed to the same side as the main nozzle d<2>. For moving the pellets jointly or positively, arms f<1>, f<2>, Fig. 8, on the pintles are connected with arms k<1>, k<2>, pivoted at k<0>, by rods h<1>, h<2>, springs providing a yielding connection. The arms k<1>, k<7> are linked by rods to a crosshead j on a tiller k. The crosshead can be moved to and fro on the tiller by screw-and-nut gear operated by the handwheel j<0>. Swinging the tiller produces the like motion of the pallets and rotating the handwheel produces opposite motion. Specifications 124,047, 141,445 and 159,927 are referred to.
Patent GB-258749-A (GB)
Title: Cloth expanders
IPC: D06C3/06
Filed: 1925-11-16
Abstract: 258,749. Voegeli, F. B. Nov. 16, 1925. Moulding indiarubber; processes.-A roller for a cloth &c. expander or squeezer comprises a number of roller members 8 mounted on a curved rod and a rubber cover 12 moulded on and anchored to the members 8. As shown, projections 14 on the cover engage dovetailed recesses 13 in the thickened centre parts 9 of the members 8. The ends of the members 8 are formed with interengaging clutch teeth 11, the cover being spaced from the ends of the member 8, e.g., by coating the ends with some powder or paper sleeves during the moulding operation. The cover is preferably moulded on the members 8 while they are on a straight rod, the paper sleeves being subsequently broken.
Patent GB-1043419-A (GB)
Title: Improvements relating to hydraulic reciprocating pumps
IPC: F04B49/22
Filed: 1963-07-22
Abstract: 1,043,419. Reciprocating pumps. BARMER MASCHINENFABRIK A.G. July 22, 1963 [July 25, 1962], No. 28923/63. Heading F1A. A pump piston works in a sleeve 4 the interior of which is continually in communication with a space 6 through at least one hole 5. The pump draws liquid through an inlet 26 and discharges partly to a bore 17 and to pressure storage system through a connection 18 (Fig. 1, not shown). Liquid flows to a cylinder 37 via bores 17, and 34 the latter containing a restriction 33. A piston 40 in the cylinder 37 bears against an adjustable spring loaded valve 31 which is also subjected to the pressure of the pump cylinder. The pressure in the cylinder 40 and space 6 builds up with successive strokes of the piston 2 up to a pre-determined level. Whereupon at the next suction stroke of the piston 2, the piston 40 overcomes the effect of the spring 27 and pressure in the chamber 6 to lift the ball valve 31 and allow liquid to flow to the supply reservoir via an outlet bore 41.
Patent GB-307899-A (GB)
Title: Improvements in or relating to vehicle jacks
IPC: B60S9/04
Filed: 1928-10-09
Abstract: 307,899. Schneider, A. March 16, 1928, [Convention date]. Stands or supports.-In vehicles, fitted with screw jacks operated by the engine, the driving gear is in two portions located in separate boxes 6, 11 connected by a shaft 8.: The box 11 is located above, below, or laterally of the box 6 according to the height of the axle 14 above the ground.
Patent GB-265704-A (GB)
Title: Improvements in bale forming and like presses
IPC: B30B9/30
Filed: 1925-11-18
Abstract: 265,704. Shaw & Sons (Salford), Ltd., J., and Shaw, J. Nov. 18, 1925. Baling-presses.-In a hand-operated baling- press comprising a press-box d supported by a pair of end frames each composed of two uprights a and a cross-bar b, all of channel section, a long screw, one end of which is journaled in a travelling cross-bar l whilst the other end carries a press head, and a nut mounted on the screw and adapted to engage the uprights a to take the reaction thrust of the screw, a single central bar of channel section supports the press box and connects together the end frames. The ends of the cross-bars b are connected by angle bars e and foundation angle bars g are secured by angle cross-bars f to the uprights a. A U- sha.ped bar q secured to the foundation bars g supports at its ends rail-tracks o for the wheels n of the travelling cross-bar l, the other ends of the tracks being carried by a cross-bar p secured to the uprights a. The side doors of the pressbox are locked bv loops i pivoted to lugs j interconnected by a bar which forms a pivot for the catch of the top door.
Patent GB-280208-A (GB)
Title: Improvements in apparatus for producing foam for fire extinguishing purposes and for bathing purposes
IPC: B01F3/04
Filed: 1927-11-01
Abstract: 280,208. Sandor, N. Nov. 3, 1926, [Convention date]. Liquid fuel. - In the production of foam by passing compressed gas in a fine state of subdivision into a foam-forming solution, the gas is subdivided by passage through the natural vascular tissues of plates b or bodies c, Fig. 1, cut from wood with their operative faces inclined to the direction of the fibres of the wood. The bodies are arranged in battery-like formation on perforated tubes. As shown in Fig. 4, a solution tank 10 is connected to a foam tank 11 by pipes 9 in which are arranged perforated pipes 2 strung with wood bodies c. The tubes 2 are fed with compressed gas by pipes 13 and a header 12. Solution is fed in by a pipe 14 and foam passes off by a pipe 15. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a construction. Fig. 4 (Cancelled), wherein a tank 4 is formed with a false bottom constituted by wood plates b held in a frame 5. Compressed gas is introduced by a pipe 6 and dry foam passes off by a pipe 7, other pipes 8<a>, 8<b>, 8<c> serving for the withdrawal of foam of varying degrees of dryness- It also states that lime-trees grown on stone provide a suitable wood for the bodies b, c and refers to the use alternatively of porous bodies of earthenware or dense fabrics. It further refers to the use of the foam as a fuel (petrol-air foam). This subject-matter does not appear in the Specification as accepted.
Patent GB-1081995-A (GB)
Title: Ventilation system in a multi-level garage or enclosed car park
Inventor: LIPP KURT
IPC: F24F7/06
Filed: 1963-07-24
Abstract: 1,081,995. Ventilating systems. SULZER BROS. (LONDON) Ltd. July 17, 1964 [July 24, 1963], No. 29397/63. Heading F4V. A ventilation system in an annular or spirally shaped garage or car park comprises an elongated supply duct 17 extending along the top of a boundary wall 13 of the garage space with a plurality of closely spaced inlet nozzles 19 distributing the conditioned air, outlets 31 being provided in the same wall. The car park shown in Fig. 1 consists of a cylindrical outer wall 10 with a continuous generally spiral roadway 11 providing several floor levels. Positioned centrally within the wall 10 are two concentric cylindrical walls 12 and 13 defining an annular space 14. Air enters through passage 20, passes through a filter 22 and heater 23 to fans 24 and thence to a circular chamber 25 within the inner wall 12. From this chamber the air passes through controllable shutters 27 to vertical air supply trunks within the space 14 and then to the inlet duct 17 via apertures 18. Exhaust air leaves via openings 31 to four more air trunks in the space 14, Fig. 3 (not shown), which are spaced at 90 degrees about the central vertical axis of the car park. From the air trunks the exhaust air passes through controllable shutters 30 into chamber 29 and is expelled by fans 28 via the outlet 21.
Patent GB-305264-A (GB)
Title: A new or improved process and apparatus for treating fabric with rubber solution or the like
IPC: B29C70/68
Filed: 1927-11-04
Abstract: 305,264. Macintosh & Co., Ltd., C., Brazier, S. A., and Campbell, J. D. Nov. 4, 1927. Coating fabrics in long lengths.-In the process of coating fabric in which a coating of rubber solution or natural or artificial aqueous dispersion of rubber is mechanically applied to the fabric and the latter is then transported in the form of festoons through a drying chamber, the treatment is repeated by continuously passing one length of fabric through a series of coating machines each followed by a drying chamber. The fabric a, Fig. 1, is fed from a joining table b to a solution spreader c in which a coating is applied to one surface. The fabric then passes to a drying chamber d through which it is transported in the form of festoons in the usual manner as shown in Fig. 3. The temperature of the chamber is maintained at about 70‹ C. The fabric then passes to a second spreading machine, and thence through a second drying chamber, and so on. One or more of the final chambers may constitute vulcanizing compartments; preferably the spreading machine preceding this chamber or chambers is adapted to spread farina or other pro-vulcanizing agent on the coated material. From the last chamber the fabric passes to a reeling machine. The spreaders and drying chambers may be arranged in two series, one above the other, as shown in Fig. 4; such an arrangement facilitates the coating of both sides of the fabric. Alternatively the fabric may be made to return in a path parallel to its original direction by making one of the chambers of semi-circular form. One side of the fabric may be given a thicker coating than the other.
Patent GB-1534294-A (GB)
Title: Stringed instrument with sliding variable spaced frets
IPC: G10D3/06
Filed: 1975-07-14
Abstract: 1534294 Stringed musical instruments P A DUNLAP 14 July 1975 [23 Aug 1974] 29508/75 Heading G5J A stringed musical instrument such as a guitar or banjo has a non-fretted neck carrying a slidable fret block which has a number of frets, and which is arranged to vary the spacing between the frets as a function of its position along the neck. The arrangement reproduces the (non- uniform) fret spacing of a conventional instrument as the block is moved along the neck and allows chords of continuously varying pitch to be played.  The block carries one fixed fret 26, which may be at either end of the block, and a number of relatively movable frets 24 each mounted on a diamond shaped plate 36. The plates are slidable within the block and are spring biased towards each other, each plate having a recess 43 to allow nesting at the closest spacing. Spacers 46 slide in diverging grooves 32 in the neck so as to vary the fret spacing by acting between adjacent plates 36 as a function of the position of the block along the neck. The function may be made non-linear by suitable shaping of the grooves 32 or the edges of the plates 36 on which the spacers act. The block may have a shroud extending around the neck of the instrument to prevent contact between a players hand and the stationary neck as the block is moved.