baber/WOPTO huggingface dataset:
Patent GB-1161185-A (GB)
Title: Process for preparing 2-[2-(Substituted) Vinyl] Amidines
IPC: C07D239/06
Filed: 1968-02-07
Abstract: 1,161,185. 2 - (2 - (Substituted) vinyl)- cyclic amidines. CHAS PFIZER & CO. Inc. 7 Feb., 1968 [28 Feb., 1967; 1 Dec., 1967], No. 6156/68. Addition to 1,108,207. Heading C2C. 2 - [2 - Substituted) vinyl] - cyclic amidines having the formula are produced in a process which comprises condensing, at a temperature between 50‹ C. and 150‹ C., a compound of the formula where R 2  is and R 3  is ethyl, Cl, Br or I; R 4  is H or methyl; R 5  is F, mercapto, methylthio, Cl, Br, or I; with a compound of the formula where Y is an ethylene or trimethylene group and if desired reacting the free base thus obtained with a suitable non-toxic acid to obtain the corresponding salt product. The by-product water is removed by use of a molecular sieve, e.g. the synthetic "Linde Molecular sieves," or by reason of the water forming an azeotrope with the reaction-inert solvent, e.g. benzene or toluene, or by the condensation being conducted at a temperature of from about 100‹ C. to about 150‹ C. in the absence of a solvent. Pharmaceutical compositions having use in the veterinary control of helminthiasis and containing the compounds defined above are administered orally or parenterally in association with a pharmaceutically acceptable diluent or carrier.
Patent GB-633328-A (GB)
Title: Improvements relating to the treatment of gas retorts
IPC: C04B33/13
Filed: 1948-02-28
Abstract: Method of treating the inner surface of a silica gas retort comprises a primary treatment with a composition containing 4-30 per cent borax and 70-96 per cent silica and a secondary treatment with a composition containing 1-15 per cent borax and 85-99 per cent silica, the first composition being applied as a slurry, e.g. by spraying and the second composition either as a slurry or in powder form.  The treatment is carried out while the retort is hot and one or more coats of each composition may be applied.
Patent GB-780178-A (GB)
Title: Underwater transducer
IPC: G01S1/72
Filed: 1956-02-29
Abstract: 780,178. Holders for piezo-electric crystals. BENDIX AVIATION CORPORATION. Feb. 29, 1956 [March 8, 1955], No. 6360/56. Class 40 (8). [Also in Group XXXIX] At least one longitudinally vibratile cylindrical ceramic element 14 having electrodes on its end surfaces is mounted in a substantially solid casing 10 of rubber-like material, one electrode being bonded to a conductive surface layer forming a terminal 16 on a front diaphragm 22 and the other electrode being bonded to a rear electrical terminal 17. The front terminal 16 and a screening electrode 19 are connected to the outer conductor 12b of a cable 12, the inner high potential conductor 12a of which is connected to terminal 17. The electrodes on each element 14 are formed by painting with silver paint and baking to leave a thin film of silver. The electrodes are then cemented to the terminals 16, 17 which have previously been sand-blasted so that electrical contact is made through the cement. The device is mounted on the bottom of a ship, the front 10e of the device being pointed to reduce turbulence. The transducer is dimensioned to operate at a frequency of about 100 kc/s.
Patent GB-1085132-A (GB)
Title: Warp knitting
Inventor: NOE HAROLD COOPER
IPC: D04B23/08
Filed: 1965-02-15
Abstract: 1,085,132. Knitting. I. ZENDMAN Inc. Feb. 15, 1965, No. 6423/65. Headings D1C and D1K. To produce a warp knitted fabric having a laid-in yarn, a first yarn LY is wrapped about the needles while in a lower position, the needles are raised to clear the yarns below the latches, ground yarns are then wrapped about the needles which are then lowered to draw loops and cast off both yarns. Embroidered fabrics are obtained by shogging the yarn guides in front of several needles; and file fabrics by wrapping yarns about points behind the needles. In knitting double faced terry fabrics laid-in yarn is wrapped about needles of both beds then the ground yarn is knitted on needles of one bed, and the cycle repeated knitting ground yarn on needles of the other bed.
Patent GB-430933-A (GB)
Title: Improvements in or relating to roofing tiles
IPC: E04D1/04
Filed: 1934-02-28
Abstract: 430,933. Roofing-tiles. HURDEN, E., The Gables, Harefield, Middlesex. Feb. 28, 1934, No. 6469. [Class 87 (i)] In a pantile, the edge of the pan opposite to the roll is formed with a reverted curve of smaller radius than the roll, forming a smaller roll adapted to fit closely under the roll of the adjacent tile. At the point where the curve is reversed on the under tile, it is so shaped that a gap J is formed between the upper and under tiles to prevent the creeping of moisture, and so that a projection M, formed on the roll of the upper tile and fitting closely to the small roll H of the under tile, will lock the tiles together. The tiles may be made of material such as asbestos cement, and may be provided at one end with a flattened depression K to allow the heads of the fixing nails to be recessed. Specification 402,215 is referred to.
Patent GB-1515585-A (GB)
Title: Thermoplastic copolymers of polysiloxane polycarbonate and polyester constituents
IPC: B01D71/80
Filed: 1976-02-19
Abstract: 1515585 Polysiloxane - polyester - polycarbonate block copolymers BAXTER TRAVENOL LABORATORIES Inc 19 Feb 1976 [10 March 1975] 6490/76 Heading C3T A linear thermoplastic alternating block copolymer comprising polydiorganosiloxane blocks, polyester blocks which are condensation products of a difunctional organo-diacid or a derivative thereof with an aromatic diol, and polycarbonate blocks which are condensation products of an organocarbonate precursor and an aromatic diol may be prepared by reacting under esterification conditions a difunctional polydiorganosiloxane, preferably an alpha,#-dichloropolydimethylsiloxane, an aromatic diol, a difunctional organo-diacid or derivative thereof and an organocarbonate precursor. Preferably the aromatic diol and polydiorganosiloxane are reacted together in a first step and the resulting product is reacted with the organodiacid or derivative thereof in a second step, and the resulting product is reacted with the organocarbonate precursor. Suitable organocarbonate precursors are carbonyl dihalides, e.g. phosgene, and bishaloformates of dihydric phenols or glycols. Suitable aromatic diols are 4,4<1> - isopropylidene diphenol, resorcinol, 2- methylresorcinol and hydroquinone. Suitable diacid derivatives are terephthaloyl chloride, isophthaloyl chloride, succinoyl chloride and adipoyl chloride. The block copolymer may be represented by the average formula wherein R is a divalent aromatic group and R<1> is a divalent organic group, R<11> is O, S, a divalent organic group attached to the adjacent Si atom by a C-Si or a C-O-Si bond, or a -NR<111> group, where R<111> is hydrogen or R<0> or R<0> attached to the nitrogen atom by a divalent carbonyl or thiocarbonyl group; R is a monovalent organic group, e is greater than 0 and less than 1, x, y and z are positive numbers such that the molecular weight of each polyester, polycarbonate and polydiorganosiloxane segment is 100 to 100,000, the polyester and polycarbonate segments constituting 10 to 90% wt. of the copolymer. In an embodiment the diol is 4,4<1>-isopropylidene diphenol and the polyorganosiloxane segments are linked by Si to 1,3-propylene groups to aliphatic polyether linkages, particularly polyethylene ether, the polydiorganosiloxane comprising at least 50% by wt. of the combined polydiorganosiloxanepolyether. In Examples 1, 2 and 4 copolymers are prepared by reacting bisphenol A or a mixture thereof with resorcinol first with an alpha,#-dichloropolydimethylsiloxane and then with terephthaloyl chloride in the presence of an organic solvent and pyridine or trimethylamine as catalyst, followed by phosgenation. In Example 5 a copolymer is similarly prepared from bisphenol A, an alpha,# - dichloro - polydimethylsiloxane, terephthaloyl chloride and 1,4-butane diol, followed by phosgenation. Uses.-Medical devices.
Patent GB-1030822-A (GB)
Title: Propeller shaft mounting for multi-screw ships
IPC: B63H23/32
Filed: 1965-02-15
Abstract: 1,030,822. Propeller shaft tubes. WESER A.G. Feb. 15, 1965 [Feb. 13, 1964], No. 6503/65. Heading B7S. In a propeller shaft mounting for multi-screw ships wherein each propeller shaft is journalled where it emerges from the hull and at at least one other place outside the hull, the shaft is separable outside the hull between the two, or two of the bearings and is surrounded by a sealed housing which can be filled with lubricant. The housing consists of two telescopic tubular parts.
Patent GB-501178-A (GB)
Title: Improvement in gas supply apparatus for the chlorination or similar treatment of liquids and gases
IPC: C01B7/01
Filed: 1938-03-02
Abstract: 501,178. Float - actuated valves; purifying water; mixing fluids in flow. PEET, G. D. March 2, 1938, No. 6589. [Class 135] [Also in Groups I and II] Apparatus for supplying gas for chlorination or like treatment of.- liquids and gases comprises flow-controlling means, means for supplying gas at a constant substantially atmospheric pressure thereto, a suction device for drawing the gas through the flow-controlling means, an adjustable restriction in the flow passage between the flow-controlling means and the suction device, and means for maintaining the negative pressure at the discharge side of the restriction substantially constant, the restriction being automatically adjusted to maintain the suction head transmitted to the flow-controlling means constant. As applied to apparatus for chlorinating water, a Venturi aspirator 15 in a water pipe 30 create suction in pipes 23, 22, a float chamber 20 and a pipe 21 supplied with gas at atmospheric pressure, the flow of gas being kept constant by a restricted orifice 12. The suction draws water into the float chamber until the float 26 reduces the suction by closing a valve 25 controlling the pipe 22. The suction necessary for this can be adjusted by raising or lowering a tray 43 supporting one end 42 of a U-tube 50 connected at its other end to the float chamber, the tube having a larger cross-section than the inlet pipe 36. Suction between the valve 25 and aspirator 15 is maintained constant by raising water to a chamber 33, between the pipes 22, 23, from a constant level vessel 34 ; when the level of the water reaches the pipe 23 it serves as " make-up " water. Specification 463,880, [Group II], is referred to.
Patent GB-872179-A (GB)
Title: Improvements in or relating to coatings for foils
IPC: C08J7/052
Filed: 1959-02-25
Abstract: A graft polymer is prepared by admixing 60%-95% vinylidene chloride with a water soluble polymerizable monocarboxylic acid which has been previously partly polymerized in the aqueous phase, with a content of emulsifier, by means of a redox system, together with, or immediately after the addition of, a quantity of acrylic and/or methacrylic acid ester and/or vinyl acetate which together with the monocarboxylic acid provide the remaining 40%-5%, the quantity of monocarboxylic acid being less than that of the ester and/or acetate.  The redox system may be sodium bisulphite-ammonium persulphate and the emulsifier may be an alkyl benzene sulphonate.  The water-soluble polymerizable monocarboxylic acid may be acrylic acid and the acrylic and/or methacrylic acid ester may be the methyl ester.
Patent GB-235320-A (GB)
Title: Scaffold clamps
IPC: E04G7/16
Filed: 1924-03-15
Abstract: 235,320. Wright, M. W. March 15, 1924. Clips, band.-Pole clamps comprising swivelled parts so that the poles may be clamped at varying angles, have the clipping bands A provided with hooked extremities for disengaging attachment to the swivel plates C, C'. The clamps are locked by nuts I31 engaging swivel bolts B attached to the ends of coacting clipping bands. Specifications 6766/85, [Class 52, Furniture &c.] ; 7578/98, [Class 20, Buildings &c.] ; 17152/03: and 9899/10, [Class 20 (ii), Buildings and structures, Miscellaneous accessories &c.], are referred to.
Patent GB-635237-A (GB)
Title: Improvements in and relating to piston slide control valves
IPC: F16K11/078
Filed: 1947-03-10
Abstract: 635,237. Valves. DANIELS, Ltd., T. H. & J., and JOHNSON, A. O. R. March 10, 1947, No. 6663. [Class 135] A piston slide-valve for controlling fluids at a pressure of, e.g., 2000 p.s.i., having means to overcome the resistance to axial movement of the piston due to .capillary action between the piston and its bore, comprises a ported casing 10, housing a piston 11 and having a detachable extension 14 formed with a slot 13. An operating arm 12 secured to an extension of the piston has a spring-urged bush 15 which coacts with the slot 13, whilst a spring-loaded sleeve 18 engages a recess 20 formed around the slot 13 to maintain the piston in its adjusted position. In operation, the sleeve 18 is disengaged from the recess 20 by a collar 17 on the arm 12 and the arm 12 moved in the slot 13 to impart a combined angular and axial movement to the piston. The arm 12 may be mechanically-actuated.
Patent GB-749665-A (GB)
Title: Improvements in thread bobbins
IPC: B65H55/00
Filed: 1954-03-08
Abstract: 749,665. Bobbins; yarns and threads. FAIRWEATHER, H. G. C. (Heminway & Bartlett Manufacturing Co.). March 8, 1954, No. 6680/54. Drawings to Specification. Class 120 (3). A yarn package is produced by winding a package of a thread of synthetic resinous material, e.g. nylon, polyacrylonitrile, polyethylene glycol terephthalate, or a copolymer of vinylidene chloride and acrylonitrile, having one or more surface coatings of thermoplastic material which softens to adhesive consisting at temperatures above 140‹ F., e.g. the coating materials described in Specification 699,579, [Group IV (a)], compressing the package in the direction of its axis sufficiently to effect a substantial reduction, e.g. 20 per cent, in thickness of the package and to force adjacent convolutions of the thread into tightly compacted relationship axially of the package, subjecting the package during the compressing operation to a temperature at least as high as the softening point of the coating material and maintaining the package under pressure until the coating softens and secures the convolutions in such manner that the package will not unravel under normal handling but will unravel freely under an unwinding tension. The package may be pressed between convex dies in order to compress the package more in the centre than at the periphery so that on cooling and relaxation of pressure the package assumes a flat-sided form, or the dies may be so shaped as to produce a package having curved or rounded faces.
Patent GB-1169002-A (GB)
Title: Label Card
Inventor: DAVIS FREDERICK THOMAS
IPC: G06K19/04
Filed: 1966-02-16
Abstract: 1,169,002. Tickets. BRITISH SHOE CORP. Ltd. 25 Jan., 1967 [16 Feb., 1966], No. 6794/66. Heading B8F. A rectangular label card can be divided along weakened lines 12, 19 into three parts: (1) a portion 11, which can be punched at 16 for use in a computer, and has printing 15 enabling a human to read the punching, (2) a display portion 14 suitable for attachment to a container for goods, and (3) an intermediate portion printed with information relating to the goods, spaces being left for further information to be written. In the form illustrated the middle portion may be further divided along a weakened line 18. Space is left for further written information on the computer section 11 and the display section 14 includes a part intended to fold inside the container.
Patent GB-1463644-A (GB)
Title: Analog signal comparators
IPC: G05B1/02
Filed: 1975-02-18
Abstract: 1463644 Temperature control JOHNSON SERVICE CO 18 Feb 1975 [14 March 1974] 6837/75 Heading G3R [Also in Divisions H2 and H3]  A signal comparing circuit is required to compare two inputs and, if the difference between them exceeds a predetermined value, provide pulsed operation of an output element (e.g. an electric motor) in a manner dependent on the sense of the difference (e.g. the sense of rotation of the motor depends on the sense of the difference). The described application is to temperature control. A temperature-monitoring device 15 sets a command potentiometer RX and the position of a mechanical damper element 16 for adjusting the flow of heating or cooling medium sets a further potentiometer R3. The difference in potential at the potentiometer wipers is fed to a differential amplifier 21 comprising transistors Q1 to Q4. The amplifier outputs 31, 33 provide inputs to a pair of oscillators R12-C2-Q6 and R13-C3-Q7, Q6 and Q7 being unijunction transistors. If the inputs are equal-or nearly equal, neither unijunction transistor conducts. If the input difference is sufficiently great, Q6 or Q7 will conduct according as the difference is positive or negative. The associated RC (i.e. R12-C2 or R13-C3) causes the relevant unijunction transistor to provide a pulsed output which is fed to the gate of the relevant triac 26 or 28 thereby shorting out, whenever the triac conducts, one or the other of two shading pole coils 11, 12 governing the position of the armature of a motor 14 which sets the damper 16. The latter will thus move in the appropriate sense until the input difference (representing the difference between required and actual positions of the damper) is less than the predetermined amount.
Patent GB-338466-A (GB)
Title: Improvements in hydraulic shock absorbers
IPC: F16F9/26
Filed: 1930-03-03
Abstract: 338,466. Bentley, P. H., Draper, A. D., and Bentley & Draper, Ltd. March 3, 1930. Fluid-friction vibration-dampers.-In apparatus of the type in which a double-acting plunger operated from a point intermediate its ends works in a double-ended cylinder, the ends of the cylinder are connected by a throttling passage which is sealed by a floating piston, the movement of which is limited by stops or springs so that the plunger may have a limited amount of free movement before the throttling effect commences. The plunger 10' is reciprocated by a depending arm 6 mounted upon a shaft 7 which is oscillated by an external operating arm 5, oneway ball valves 14 being provided in the plunger to connect the ends of the cylinders to the intermediate reservoir 2. The two ends of the cylinder are connected by a passage 16 in which a piston 18 moves freely between limit stops 19. Springs may be interposed between the piston 18 and the stops 19. When the piston 18 engages one or the other of its stops or springs, further movement of the plunger 10 is checked by the throttling effect of one or the other of the adjustable needle valves 21.
Patent GB-1098502-A (GB)
Title: Improvements in shock-absorbers for vehicle suspensions
IPC: F16F9/50
Filed: 1965-02-17
Abstract: 1,098,502. Shock absorbers. REGIE NATIONALE DES USINES RENAULT. Feb. 17, 1965 [Feb. 18, 1964; Dec. 24, 1964], No. 6951/65. Heading F2S. In a vehicle having a suspended road wheel and an associated fluid type shock absorber the shock absorber comprises a piston 2 and cylinder 3 assembly the interior 5 of the cylinder communicating with an hydraulic accumulator through a tube 4. A valve in the fluid flow path includes two telescopic sleeves 6, 8, the sleeve 8 being connected to the closed base of the sleeve 6 and to the piston 2 by springs 10, 11 respectively. The two sleeves 6, 8 are provided with a plurality of lateral holes 7, 9 which, in the position of rest of the shock absorber, are in coincidence but when the shock absorber telescopes the sleeve 8 moves to close the holes 7, 9 in relation to the degree of telescoping. The resilience of the springs 10, 11 is chosen such that the sleeve 8 may vibrate with a natural frequency of the high-frequency oscillations of the wheels to damp these oscillations. In a modification (Fig. 2, not shown) a deflector plate is provided on the base of the sleeve 8 and damping orifices formed in the plate and the base of the sleeve 8. Further in a purely hydraulic shock absorber (Fig. 3, not shown) the fixed sleeve 6 forms part of the stem of a hollow piston rod and the sleeve 8 is spring mounted within the stem of the piston rod.
Patent GB-1424666-A (GB)
Title: Electrical signal amplifiers
IPC: H03F3/26
Filed: 1972-02-15
Abstract: 1424666 Transistor amplifying circuits COMMUNICATIONS PATENTS Ltd 6 April 1973 [15 Feb 1972] 7010/72 Heading H3T In a class B push-pull amplifier comprising output transistors VT10, VTll, the transistors are biased above the non-linear current region and driven by means of cascaded emitterfollowers VT6, VT8 and VT7, VT9 respectively: diodes W3, W4 are connected to the emitters of the transistors VT6, VT7 respectively and biased from the base bias source VT12 so that they prevent the transistors VT10, VT11 being driven towards the non-conduction region. Reference has been directed by the Comptroller to Specification 1,329,090.
Patent GB-1496697-A (GB)
Title: Removal of dark current spikes from image sensor output signals
IPC: H04N5/217
Filed: 1975-02-19
Abstract: 1496697 Television RCA CORPORATION 19 Feb 1975 [28 Feb 1974] 7044/75 Heading H4F Isolated occurrences of video signal disturbances due to residual currents (dark current) in individual diodes of a photosensitive diode array 14, Fig. 5, are removed from the output signal and replaced by a substitute signal derived by averaging the currents of the line adjacent diode elements. Array 14 is exposed to an image by the repetitive operation of an electro-optic shutter having a 60 microsecond cycle, the shutter being opened for 20 microseconds of the cycle and closed for the remaining 40 microseconds. During the latter part of each cycle exposure signals plus any disturbances from each of the diodes in one row, n say, are transferred to a holding register 28. During the 40 microsecond closed period the residual currents forming the disturbance are allowed to integrate and in the first half of the subsequent exposure the integrated currents in row n are transferred to another holding register 20. Row n output now occurs, during that period occupied by the latter half of the said subsequent exposure and integration period for row n + 1. Signals stored in registers 20 and 28 are serially applied via respective gating circuits 60 and 62 to readout registers 64 and 66. The integrated signals coming from register 64 are compared with a variable threshold value whilst those of the combined video and disturbances are applied through a three tier bucket brigade 34 to 38. When an integrated diode output in excess of the chosen threshold is detected selector 67 chooses as output the average current from the diodes line adjacent to that exhibiting a disturbance instead of the actual current from that diode. In another embodiment Fig. 2 (not shown) the electro-optic shutter is replaced by circuitry for amplifying the diode outputs during the closed period.
Patent GB-571339-A (GB)
Title: Production of relief marquetry
IPC: B44C3/10
Filed: 1943-05-04
Abstract: 571,339. Marquetry. HOING, C. H. A. May 4, 1943, No. 7051. Drawings to Specification. [Class 20 (iv)] [Also in Group XV] Relief marquetry is obtained by shaping separate pieces to from portions of the pattern and assembling them in correct relationship upon a suitable background. The desired relief effect is obtained by carving the assembled pieces. Portions of the design lying in different planes are separately formed and shaped. Woods of appropriate colour and grain to the parts represented are used.