baber/WOPTO huggingface dataset:
Patent GB-1287874-A (GB)
Inventor: KRAESSIG J
IPC: D02G3/06
Filed: 1970-01-27
Abstract: 1287874 Film fibrillation CHEMIE FASER LENZING AG 27 Jan 1970 [28 Jan 1969] 3891/70 Heading B5B Polymer film selected from polyethylene, polypropylene, polyester, polyamide, polyacrylonitrile, polytetrafluoroethylene and polyvinylchloride films is converted into filaments by continuously feeding it to a combined slitting and stretching zone, where it is simultaneously slit by passage over a series of cutting tools arranged less than 0À5 mm. apart in a row transverse to the feed direction of the film, and stretched by taking up the filaments from the cutting tools at a rate faster than that at which the film is supplied to them, the stretch point being localized in the said slitting and stretching zone by the braking effect of the cutting tools on the film. The film may be heated on one or both sides in the slitting zone, it may also be crimped by unilateral heating followed by drawing off the fibres under an obtuse angle. The film may be pre-stretched, prior to slitting. The continuous fibre product may be cut to staple fibres. In Fig. 1, the film 3 drawn off from roll 1 by the triple-roll assembly 2, is guided via vertically and horizontally movable and heatable tension pins 4 over the slitting device 5, whence it is drawn off under an obtuse bending angle (γ) by the triple roll assembly 7. The triple roll assembly 7 runs at a higher speed than assembly 2, so that the film is stretched, the braking effect of the cutting tools 5 confining the stretching to the slit film 8. A guiding device 6, which may be heated if so desired, may be arranged between the slitting device 5 and the triple roll assembly 7. From 7 the multifilaments are conveyed to the heat device 9, then finally wound on to a roll 11 via a further triple roll assembly 10. An embodiment of the slitting device 5 is shown in Fig. 2. It comprises the cutting members 12, illustrated in front and lateral view in Figs. 3(a) and 3(b) respectively, a heating plate 13 and a casing 16 heated by the heaters 14 and 15. 17 is an insulating layer which permits 12 and 13 to be at different temperatures.
Patent GB-1535894-A (GB)
Title: Preparation of azo dyestuffs
IPC: C09B31/02
Filed: 1977-02-01
Abstract: A diazonium compound is coupled with a coupling component of the formula III or IV, where the substituents X7 - X11 are each as defined in Claim 1. The coupling takes place at 0-80 DEG C and in the presence of an acid, in a solution or dispersion medium in the form of a mixture of 90 - 15% by weight of an aliphatic alcohol having a chain length of 4 - 6 carbon atoms and a solubility in water of not more than 15% by weight at 15 DEG C and 10 - 85% by weight of water. The reaction medium used in the process, which can be carried out in one or two stages, makes it possible to prepare pure azo dyes in good yield within a relatively short reaction time. <IMAGE>
Patent GB-173704-A (GB)
Title: Improvements in paper feeding and collating device
IPC: B65H39/042
Filed: 1921-02-03
Abstract: 173,704. Marcuson, E. Feb. 3, 1921. Stationery cases.-An apparatus for superposing or collating a series of sheets of papers, for example, writing and carbon sheets for use in a typewriter, advertising-sheets or circulars, and book or pamphlet sections, comprises an open-ended box 1 provided with shelves 2, for supporting piles of sheets, and pushers 11 for simultaneously pushing the top sheets of the piles into position for being grasped by the hand and withdrawn. The pushers are carried by arms 10 on iods 5 which can slide or turn in ears 4 and are associated with means, preferably consisting of stationary stops 9 engaging bends 8 on the rods, which normally hold the pushers above the piles but permit the pushers to drop when the rods are moved outwards. The pushers are operated by links 27 having shoulders 28 for engaging the bends 8, the links being pivoted to a block 26 carried by levers 18, 19 operated by a crank 21 and returned by a spring 25. Any pusher can be rendered inoperative by disconnecting the associated link 28 from the bend and permitting the link to rest on a support 30. The pushers may consist of a needle secured by a screw 13 to a split sleeve 12 mounted' on the arm 10, the arrangement permitting adjustment of the needle. For use with thin sheets, the needles may be provided with a stop 31. To facilitate the insertion of the sheets, they may be supported by stiff trays 32 of cardboard &c. The trays may have stops for registering small sheets. Carbon sheets, after being used, may be piled on a tray suported on the top 35 of the box. A number of apparatus may be coupled for simultaneous operation. A stop 29 is arranged in the path of the crank. The crank 21 may have a lost-motion connection arranged so that the crank can be turned forwards idly to permit closing of a draw or desk in which the apparatus is placed'.
Patent GB-968042-A (GB)
Title: An alkaloid (c h o n) and a method of extracting it from plant material
Inventor: ALOSHKINA JANINA ADOLFOVNA
IPC: C07D455/02
Filed: 1962-02-02
Abstract: The invention comprises an alkaloid of the empirical formula C30H42O5N2 from members of the family Nymphaeaceae, having protistostatic, spermicidal, bactericidal and fungicidal properties and forming a perchlorate (C30H42O5N2.2HClO4) of melting point 225-6 DEG C., and the preparation thereof by extracting Nymphaeaceae plant material (e.g. Nupharlutenm rhizomes) with dichloroethane in the presence of ammonia, extracting the extract with 10% sulphuric acid, neutralizing the acid extract with ammonia, dissolving the resulting precipitate of alkaloids in chloroform, evaporating the solvent, dissolving the residue in an organic solvent, precipitating the alkaloid as its perchlorate or methylene-bis-salicylate, suspending the precipitate in ammonia solution, extracting the alkaloid with ether and drying the solution, and, if desired, purifying the solution with alumina and passing hydrogen chloride through the purified solution to precipitate the hydrochloride of the alkaloid. Pharmaceutical preparations.-The alkaloid may be administered in the form of a 0.1-0.5% spermaceti emulsion, a 1% aqueous solution, a globular emulsion in cocoa butter, or 0.5-1 gm. effervescent tablets each containing 3 mgs. of the alkaloid.
Patent GB-630506-A (GB)
Title: Improvements in or relating to imitation scenery for theatrical, shop display and like purposes
IPC: A63J5/02
Filed: 1947-02-13
Abstract: Artificial stone is made by heating woven asbestos cloth impregnated with sodium silicate, pressing or otherwise forming to the desired shape, and then reheating.  The heating may be carried out for about 20 minutes at a temperature of 112-200 DEG  C. according to the nature of the desired product.  The product may be coloured by treating the asbestos cloth before or after impregnation or before or after heating.  Preferably, a colouring-material which changes colour on heating is employed.  Articles may be made in several sections secured together by adhesive such as sodium silicate.
Patent GB-568792-A (GB)
Title: Improvements in or relating to ointments
Filed: 1943-03-18
Abstract: A sulphonated or phosphated hydrogenated castor oil derived from a castor oil having an iodine value of not more than 11, and prepared, for example, as described in Specification 558,912, may be neutralized with sodium, potassium, lithium, ammonium or organic amine cations.  The degree of hydrogenation, the percentages of combined SO3 or P2O5, and of moisture, and the degree of neutralization may all be varied to give a product having the desired hardness, melting point and hydrophilic properties.  The Specification as open to inspection under Sect. 91 is not limited in respect of the iodine value of the castor oil used in the preparation of the derivative.ALSO:A hydrophilic base for ointments, salves, cerates, creams and the like comprises a mixture of sulphonated or phosphated hydrogenated castor oil, derived from a castor oil having an iodine value of not more than 11 and an unctuous substance suitable for application to the skin.  The castor oil derivative may be prepared as described in Specification 558,912, and may be neutralized with sodium, potassium, lithium, ammonium or organic amine cations.  The degree of hydrogenation, the percentages of combined SO3 or P2O5, and of moisture, and the degree of neutralization may all be varied to give a product having the desired hardness, melting point and hydrophilic properties.  Unctuous substances referred to are petrolatum, liquid petrolatum, mineral, vegetable and animal oils, fats, waxes, fatty alcohols, fatty alcohol esters, lanolin, glycerine, glycols and glycol esters.  Emulsion creams are made as above with the addition of water (preferably 30-70 per cent) and emulsifying agents such as diethylene glycol monostearate, glyceryl monostearate, triethanolamine and its soaps, tri-isopropanolamine and cholesterol.  Medicaments referred to are benzoic acid, boric acid, tannic acid, belladonna, Burow's solution, chrysarobin, nutgall, ammoniated mercury, iodine, phenol, pine tar, sulphur, zinc oxide, calamine, camphor, capsicum, salicylic acid, mercurous chloride, colloidal mercurous chloride, mercuric nitrate, red mercuric oxide, ichthaminol, menthol, coal tar, birch tar, potassium iodide, resorcinol, scarlet red, mustard, sulphanilamide, sulphathiazole, sulphadiazine, stramonium, alkaline sulphur, zinc stearate.  Examples of ointments, cleansing, vanishing and sunburn creams have ingredients other than those referred to above as follows: stearic acid, peach kernel oil, hydroxystearic acid, spermaceti, oleyl alcohol, stearyl alcohol.  U.S.A. Specification 1,940,390 is referred to.  The Specification as open to inspection under Sect. 91 is not limited in respect of the iodine value of the castor oil used in the preparation of the derivative, and refers to the use of the derivative alone as a base for an adhesive salve and in an example to its admixture with benzoic and salicylic acids to form an ointment.
Patent GB-1203567-A (GB)
Title: Film viewer
IPC: G03B21/11
Filed: 1969-01-27
Abstract: 1,203,567. Microfilm projection readers. PHOTRONIX Inc. Jan.27, 1969 [May 7, 1968], No.4492/69. Heading G2A. A microfilm projection reader has a microfilm carrier 6 movable orthogonally in directions normal to the optical axis beneath lamp house 5, an enlarged image of the microfilm being thrown on to a screen supported on top 2 by way of a folded optical system comprising two inclined mirrors on a vertically movable spring-balanced carriage within cabinet C, movement of said carriage through control knobs 23 altering the magnification of said image, there being two projection lenses of different magnifying power which may be selectively placed in the optical axis to change a given image magnification as determined by the position of said mirror carriage. Once either lens (85, 87), Fig.11 (not shown) has been focused by means of knobs 60, 62, Fig.1, rotation of shaft (22) by knobs (23) to shift the mirrors automatically focuses the lenses by means of cams acting on lens housing (4). Rotation of shaft (22) also shifts lamp (112) vertically by means of post (107) and cam follower (102) relative to condenser system (113). A blower directs cooling air to the lamphouse through duct (48). Lenses (85, 87) are selectively shifted on the optical axis (95) in their frame (4) by means of toggle (58) operable through switch (59). Knobs 64, 67, Fig.1, operate rack and pinion drive of the microfilm carrier 6 is orthogonal directions, the microfilms being mounted either separately in cards or on film reels, in which case a reel crank is provided. Printing is possible if the screen on top 2 is replaced by photo-sensitive paper.
Patent GB-1385795-A (GB)
Title: Colour television receiver for use in pal system
IPC: H04N9/455
Filed: 1972-01-31
Abstract: 1385795 Colour television MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 31 Jan 1972 [10 Feb 1971 18 June 1971(2)] 4524/72 Heading H4F In a PAL colour television decoder, phase errors are reduced by using the integrated output of R-Y demodulator 6 to control phase controllers 3, 13 connected between a reference oscillator 4 and demodulators 6 and 2. If no phase error is present the sum of adjacent lines of equal amplitude and opposite phase R-Y components will be zero, whereas a non-zero phase error will produce a non-zero sum from integrator 12. If the B-Y component is positive a positive phase error will increase (make more positive) the output of demodulator 6 for each line, whereas if the B-Y component is negative a positive phase shift will decrease the output of demodulator 6. To compensate for this gates 10, 11 are made operative by the output of B-Y demodulator 2 when this output is positive or negative respectively. The difference in the outputs of gates 10, 11 is taken at 9 and passed to integrator 12 which has a time constant of from three lines to several fields to give a measure of the phase error. The output of demodulator 6 is switched by PAL switch 8 controlled by a generator 7 operated by separated bursts and flyback pulses. In an alternative embodiment (Fig. 4, not shown) two R-Y demodulators are provided each receiving alternate lines of the incoming signal and each being provided with two gates (equivalent to 10 and 11) a differential amplifier and an integrator, a differential amplifier receiving the outputs from the integrators, and feeding the phase controllers. Rather than using the output of the R-Y demodulator, the output of the B-Y demodulator may be used to reduce phase errors. In an alternative embodiment (Fig. 5, not shown) phase error reduction is accomplished using demodulators additional to the demodulators used for producing the signals to be displayed, the output of the additional R-Y demodulator being used to gate anti-phase reference signals to the additional B-Y demodulator from which the phase control signal is developed via an integrator and amplifier. In this embodiment a second pair of extra demodulators may be included (Fig. 9, not shown) the output of the extra B-Y demodulator gating reference signals to the extra R-Y demodulator. The thus produced phase control signals are then summed.
Patent GB-1167763-A (GB)
Title: Fluid Valve Mechanism
IPC: F16K11/074
Filed: 1967-01-30
Abstract: 1,167,763. Valves. AMERICAN OPTICAL CORP. 30 Jan., 1967 [18 May, 1966], No. 4528/67. Heading F2V. A rotatable disc selector valve comprises a non-rotatable ported seating plate 10 on a fixed stem 14, in spring-loaded engagement with a rotatable valve plate 13 of plastics material. Plate 13 is engaged by a V-shaped pivot washer 18 engaging a plain washer 19 backed by a plastics washer 20. A ring of arcuate recesses 47 in the valve plate co-operates each to connect two of the ports in the sealing plate together. Two annular grooves 48, 51 in the seating plate on opposite sides radially of the ring of ports, are connected each with an inlet and an outlet passage (52, 53) and (49, 50), Fig. 3 (not shown). In use, water or other liquid is circulated through these grooves to effect sealing and keep the valve clear of dirt deposits. The valve is oscillated through a crank arm 28 and eccentric drive 36, 41. The eccentric is driven by a motor (not shown) controlled by selector and positioning switches to provide the desired porting positions. In extreme positions of the eccentric the edges of a V-stop (26, 27) on the valve plate are just clear of a flat on the stem (14), Fig. 4 (not shown).
Patent GB-1477290-A (GB)
Title: Interlockable slider pair for two-way closable sliding clasp fasteners
IPC: A44B19/26
Filed: 1976-02-05
Abstract: 1477290 Sliding clasp fasteners; locks YOSHIDA KOGYO KK 5 Feb 1976 [10 Feb 1975] 04535/76 Headings E2A and E2S A two-way closable sliding clasp fastener in which the sliders 14, 15 are moved towards each other to close the fastener, the sliders may be locked together in the closed position by means of a tongue 24 on sliders 14 which enters a socket 26 and is retained by a spring- loaded bolt 28 which enters an aperture 25 in the tongue. A key-operated lock 27 on slider 15 may release bolt 28 by means of a camming surface 39 on a rotatable tumbler 31.
Patent GB-766855-A (GB)
Title: An improved single-phase alternating current fed driving arrangement for electric traction
IPC: B60L9/12
Filed: 1955-02-18
Abstract: 766,855. Converting. MIJNSSEN & CO., N. V. Feb. 18, 1955 [Feb. 20, 1954], No. 4946/55. Class 38 (2). [Also in Group XXXVII] A control system for two groups of parallelconnected traction motors T1, T2 and T3, T4 comprises a transformer T1 for stepping down the high voltage received from a single-phase power supply-line 1 and connected on its secondary side to a polyphase rectifier group G1, a rotary phase converter C1 being fed from the transformer and having its winding 8 interconnected with the secondary winding of the transformer to provide a polyphase supply system 11, 12, 13 for the rectifier. The converter is mechanically coupled with a directcurrent machine M1 provided with a voltage regulator 18, the rectifier G1 and machine M1 being connectable in series with the traction motors. For starting, the traction motors are supplied with gradually increasing voltage from the machine M1 alone acting as a generator, and, thereafter the voltage across the traction motors is further increased by connecting the rectifier in opposition to the machine, the voltage of which is gradually reduced. Fullload operation of the motor is obtained by raising the voltage of the machine M1 in the opposite sense, the machine and rectifier acting in the same direction. As shown, the converter C1 is of the synchronous type with its high-voltage stator winding 6 fed from the primary transformer winding 3 and its rotor winding excited with direct-current. The low-voltage stator winding 8 of the converter is in quadrature with the winding 6 and has one end connected to a tapping in the transformer secondary winding 10. The neutral point of the three-phase system 11, 12 13 is earthed through the line 14. A high reactance coil 22 is. connected across opposite points in the armature of the machine M1, a centre tapping of the reactor being earthed and connected to a point between switches S3, S4, which are closed when the motors are supplied from the machine alone. In a modification a four-phase full-wave rectifier arrangement is employed for supplying the two groups of parallel-connected traction motors, two phases of the rectifier being fed from tappings in an auto transformer drawing current from the line, Fig. 2 (not shown). The other two phases of the rectifier are supplied from the ends of the low-tension stator winding of the converter which is mechanically coupled to two directcurrent machines each connected in series with a pair of traction motors. The field windings of the direct-current machines are adapted to be excited by amplidynes which, for regenerative braking, are switched over to supply the excitation of the traction motors. In this case, the traction motors act as generators and feed the direct-current machines which drive the converter for feeding power back into the line. In another arrangement, the output circuit of the rectifier comprises three supply-lines so that the motors can be supplied alternatively at half the rectifier voltage or the full voltage.
Patent GB-632682-A (GB)
Title: Preparation of 2-amino-3-carboxymethylmercapto-propanoic acid
Filed: 1947-02-20
Abstract: 2 - Amino - 3 - carboxymethylmercapto - propanoic acid is prepared from cystine and a halo-acetic acid by reduction in alkaline solution with a metal (preferably finely-divided) which forms an amphoteric hydroxide.  Chloracetic and bromacetic acids are specified as starting materials, with sodium or potassium hydroxide and zinc or aluminium.  The example shows the use of chloracetic acid, sodium hydroxide and zinc dust.  The product is an intermediate in the synthesis of biotin.
Patent GB-252445-A (GB)
Title: Improvements in rotary pumps
IPC: F04B1/113
Filed: 1925-02-24
Abstract: 252,445. Rotoplunge Pump Co., Ltd., and Smith, C. Lakin-. Feb. 24, 1925. Revolving-cylinder pumps; stroke, varying.- In a pump of the kind having radial cylinders in a hollow rotor 9 mounted concentrically on a driving shaft, the eccentricity of the pin 15 on which the plunger 10 or plungers are pivoted is varied by means of an eccentric sheave 20 rotatable in a recess in the end cover 3, the pin passing through a radial slot or guideway 18 so that the position of the cylinders in relation to the inlet and outlet passages 26, 27 is not altered when the stroke is varied. A packing washer is placed between the square collar 17 and the end cover. Th bearing block 14 has a bearing surface 13 longer than the diameter of the plunger.
Patent GB-1119776-A (GB)
Title: Quilt-guide apparatus
IPC: D05B11/00
Filed: 1966-02-04
Abstract: 1,119,776. Sewing machines. JAMES CASH MACHINE CO. 4 Feb., 1966 [16 Feb., 1965], No. 5097/66. Heading D1G. A stitching template for a quilting machine has an endless guide track constructed from a plurality of sections which can be connected together in one arrangement to provide an endless guide track of one size, and in a different arrangement to provide an endless guide track of different size. As shown, a base 10, carrying an endless guide track D11, is fixed to be upper one of a pair of carriages displaceable in directions disposed at right angles to each other. The upper carriage also supports a quilt to be stitched in accordance with the guide track pattern. The machine comprises a pair of standards interconnected by a pair of vertically-spaced beams. The upper beam carries one or two sewing heads, the lower beam carries the co-operating looptakers, and a motor housed in one of the standards drives the sewing heads; the looptakers and a follower engaging the guide track for displacing the upper carriage in accordance with the pattern. The overall width of the pattern is 64 inches. To sew a pattern 50 inches wide, a first bar 73, carrying pairs of guide members 71, 72 arranged in V-form, is replaced by a bar 69 carrying U-shaped members 68 in place of respective pairs of members 71, 72. For sewing patterns 44 and 38 inches in width respectively, second and third bars 73 are respectively replaced by bars 69. For sewing a pattern 28 inches wide, a bar 63, carrying pairs of members 61, 62 arranged in V-form and central intersecting members, is replaced by a bar 59 carrying U-shaped members 58 and central divergent members, and two bars 79 carrying intersecting members 78 are replaced by bars 77 carrying divergent members 76. The maximum pattern length, namely 64 inches, may be sewn by a single head. Alternatively, the pattern may be sewn simultaneously by the two heads, each cooperating with a guide track for sewing over an area of 32 inches (half the length) by up to 64 inches (the maximum width).
Patent GB-104774-A (GB)
Title: Air-filtering Pad in Case, for Respiratory Purposes.
Inventor: JACKSON FREDERICK EVANS
IPC: A62B18/04
Filed: 1916-04-07
Abstract: 104,774. Jackson, F. E. April 7, 1916. Inhalers and respirators. - A cup d, Fig. 1, containing a sponge g treated with some suitable mendicament to neutralize deleterious fumes, and retained by a perforated sheet h secured by cross-strips i, is provided with a breathing-tube f and is secured to the front of a smoke helmet or gas mask a. The exhaled air escapes through the material of the mask, if porous, or through a non-return valve. In a mask for the nose and mouth only, the cup d, Fig. 5, is used preferably without the breathing-tube, and a non-return valve m is inserted in the metal body of the mask, which is strapped round the wearer and is lined with flexible material j, such as rubber.