baber/WOPTO huggingface dataset:
Patent GB-1287518-A (GB)
Title: Acrylonitrile polymer filaments and a process for the production thereof
IPC: D01D5/253
Filed: 1970-02-03
Abstract: 1287518 Acrylonitrile polymer filaments JAPAN EXLAN CO Ltd 3 Feb 1970 [3 Feb 1969] 5214/70 Heading B5B A wet-spun acrylonitrile homopolymer or copolymer filament has a generally triangular cross-section in which each peripheral edge is curved and the curvature is defined by the formulae :-(#d/p)## and (l/p#d)#8, (#d/a)#(#3/24) and (l/a#d)#16 in which l is a length (in microns) of one side, represented as a straight line connecting two apices of the triangle, a is a minimum curve height (in microns) of the peripheral edge measured in the direction normal to the straight line connecting the two said apices, p is a minimum curve pitch length (in microns) measured in the direction along the straight line connecting the two said apices and d is the denier of the filament. The filament may have a "contrast index" of 15 to 50 and a "60-degree mirror-surface lustre degree of at least 35. Both these optical properties are defined in the Specification. The acrylonitrile copolymer may consist of at least 80% by weight of units of acrylonitrile and up to 20% by weight of units of another monomer. The copolymers used in one of the examples consists of acrylonitrile, methyl acrylate and sodium methallylsulphonate in a weight ratio of 91/8À73/0À27 and in another example consists of acrylonitrile and vinyl acetate in a weight ratio of 89/11. The filaments of the invention may be produced by extruding a spinning solution consisting of the acrylonitrile polymer and a concentrated aqueous solution of an inorganic salt such as a thiocyanate through a spinneret the extrusion orifices of which have a Y-shaped cross-section into a coagulating bath consisting of an aqueous solution of an inorganic salt, said bath being maintained at a temperature of - 10 to 15 C., in which the ratio of the concentrations of the salt in the polymer solution and in the coaguluting bath satisfy the relationships:- -2#x-(y/4)#3 and 35#y#49 in which y and x are the percentage by weight of the inorganic salt in the spinning solution and the coagulating bath respectively, maintaining the ratio of the average linear flow velocity of the spinning solution through the spinneret orifice to the extrusion velocity of the coagulated filament within a range of 0À5 to 3À0 and stretching the coagulated filament in a manner defined by the relationship:-16X 1 + 2À5X 2  - 3X 3  # 31 in which X 1  is the stretch ratio at which the filaments are first stretched in air at room temperature, X 2  is the stretch ratio at which the filaments are subsequently stretched in hot water, and X 3  is the stretch ratio at which the filaments are thereafter stretched in steam.
Patent GB-1058163-A (GB)
Title: Steering mechanism
IPC: B62D7/14
Filed: 1964-02-07
Abstract: 1,058,163. Steering vehicles. DROTT MANUFACTURING CORPORATION. Feb. 7, 1964 [Sept. 30, 1963], No. 5383/64. Heading B7H. A vehicle with a wheel supported body or frame, such as a straddle type crane, comprises a wheel 15 pivotable about a vertical axis, an arm 24 pivoted at one end to the frame and swing- able in a horizontal plane by an actuator 26 pivotally mounted between the arm 24 and frame, and a preferably cranked link 23 pivotally interconnecting the arm and wheel whereby the wheel is turned as the arm is pivoted on the frame. As shown, there are two steerable wheels 15, 16 and the actuators are telescopic hydraulic rams and the steering arrangement is such that when one ram is fully extended and the other fully contracted the vehicle pivots about one non-steerable wheel 13. The wheels 15, 16 are driven by hydraulic motors (29) (Fig. 1, not shown) supplied with fluid by an enginedriven pump.
Patent GB-862805-A (GB)
Title: Suspension gear
IPC: B60G11/18
Filed: 1958-02-19
Abstract: 862,805. Road-vehicle spring-suspensions. YUSAWA, E. Feb. 19, 1958 [Feb. 28, 1957], No. 5380/58. Class 108(2). A road vehicle axle is suspended by transverse torsion bars 13, 15 each connected to a respective end of the axle by crank arm 12 and link 11. The axle is also connected to the frame by radius rods 28, 29. The latter may be replaced by a second set of torsion rods 13, 15, and associated crank arms and links (Figs. 1 and 2, not shown).
Patent GB-818592-A (GB)
Title: Vehicle covering or body, more particularly for a two-wheeled vehicle
IPC: B62K27/16
Filed: 1956-02-21
Abstract: 818,592. Weather shields for vehicles. FITCH, J. C. Feb. 21, 1956 [March 18, 1955], No. 5381/56. Class 136(1) In a rigid detachable covering or body for vehicles, more particularly for twowheeled vehicles, which is adapted to surround the steering means and the seats of the vehicle to protect the driver and pillion rider from the weather, the covering is open underneath to leave the foot part free and has lateral sections 2 each having an opening therein equal in area to at least one-third and preferably about a half of the area of the side of the covering to avoid undue. side wind effects. The covering comprises a front closure means 1, two lateral walls 2 provided with doors 11 and a steeply sloping rear wall 3. The lower edge of the covering extends downwardly to a greater degree at the back than at the front. A movable, foldable roof 9 is supported by uprights 10 carried by the lateral walls 2. The roof may be collapsible and may be stored in the vehicle. The windscreen 7 and the roof 9 are arranged in such a manner that rain falling at an angle of up to 30 degrees to the vertical or to the longitudinal direction of the vehicle does not touch the driver or pillion rider. The lateral coverings are provided with central bulges 4 to afford unhindered freedom of movement to the driver's arms. The bulges enclose the headlights 5. The doors 11 are suspended at their front ends and are provided with springs for automatic closing within an opening angle approximately between 0 and 15 degrees.
Patent GB-629552-A (GB)
Title: Automatic tabbing or labelling attachment for particular use in association with a sewing machine
IPC: D05B3/20
Filed: 1947-02-25
Abstract: 629,552. Sewing-machines. FEILD, B. D. Feb. 25, 1947, No. 5384. [Class 112] [Also in Group XXIV] Feed by clamps.-An ordinary sewing-machine is adapted for the automatic attachment of labels or the like by removing the presser-foot and putting out of action the feed-dog and fitting an attachment comprising a work-clamp actuated to move in a predetermined path by means of a pinion which is driven by a flexible shaft from the bobbin winder or a wheel engaged by the usual driving belt and meshes with a rack of suitable form carried by the work-clamp to give the latter the required movement. In the form shown, the base plate W of the clamp is mounted on a compound slide, within a housing C, for universal movement in a horizontal plane and carries a rack, in the form of the path the clamp is required to follow, engaged by a pinion on a vertical shaft geared to a flexible drive A. The housing C is fixed on the machine bed by a jack J engaging the machine arm. The clamp base W carries a loosely-mounted plate N, an upper clamp plate 5 mounted on pivoted arms 3, and a hand-lever R actuating cam blocks 1 to force down the arms 3 and plate 5; the plates N, 5 are apertured at O to allow the needle access to the work while the latter is shifted along its path, and are pressed apart by springs Q which, even when the plate 5 is raised, press the plate N downwards with sufficient force to hold the work stretched in position before the plate 5 is lowered to secure it for sewing. In a modification, the plate 5 is carried by a pair of arms, on which the springs Q are fixed. Presser-bars.-In order to hold the work down close to the needle, as with an ordinary presserfoot, a presser-foot F may be mounted on a bail Z pivoted on the housing C.
Patent GB-422995-A (GB)
Title: Improvements in baths
IPC: A47K3/00
Filed: 1934-02-19
Abstract: 422,995. Baths. HUTCHISON, A., London & Glasgow Foundry, Hancock Road, Bromley-by-Bow, London. Feb. 19, 1934, No. 5405. [Class 26] The floor of a porcelain or porcelain-coated bath, is provided with a series of depressions such as b, Fig. 1, that are filled with blocks such as d which extend slightly above the normal surface of the bath and provide a non-slipping surface. The blocks may be circular, square or rectangular in cross-section or may be in the form of strips, the upper surfaces thereof may be concave or convex, and the sides may be vertical, conical or part-vertical and partpyramidal. In another form, the blocks may be in the form of rings. Bosses c, Fig. 1, are provided beneath the depressions, and the blocks may be of rubber or rubber compound containing, if desired, sand ; such blocks may be of dovetailed shape and forced into depressions having vertical sides. One or two rows of blocks may be provided on either side of the longitudinal central line of the bath ; the blocks in opposite rows may be arranged opposite one another, Fig. 14, or be relatively staggered or be inclined to the said central line. In a further form, the longer sides of the blocks are arranged longitudinally of the bath and a row is provided along the central line of the bath.
Patent GB-580718-A (GB)
Title: Improvements relating to connecting devices for the ends of conveyor belts
IPC: F16G3/02
Filed: 1945-03-06
Abstract: 580,718. Belt fasteners. MASTABAR BELT FASTENER CO., Ltd., and TEBB, B. March 6, 1945, No. 5592. [Class 80 (i)] The ends of a conveyer belt are connected by wires c, Fig. 1, formed with loops through which passes a pivot pin d, as described in Specification 522,856, and U-shaped members e, f, Fig. 2, slipped over the edges of the belt and secured thereto by rivets m and hinged together by loops g, h engaging pins p bored at one end to receive. the end of the pivot pin.
Patent GB-1064723-A (GB)
Title: Improvements in or relating to pulsed transistor circuits
Inventor: JULIAN JOHN DERTAD
IPC: H03K5/01
Filed: 1963-02-12
Abstract: 1,064,723. Transistor pulse circuits. MARCONI INSTRUMENTS Ltd. Nov. 22, 1963 [Feb. 12, 1963], No. 5674/63. Heading H3T. Pulse delays caused by charge - storage effects in a transistor pulse circuit in which an input pulse is applied to the base and an output taken from the collector are reduced by applying the input to the base through a branch circuit comprising a resistor shunted by two paths each including in series therein a unilaterally conductive device (e.g. a semi-conductor diode), the two devices being connected with opposite directions of polarity. In the sawtooth generating circuit illustrated, the initial heavy pulse of current which occurs when the transistor is switched on due to discharge of the capacitor 6 calls for a large base current to ensure bottoming; this is provided by conduction in diode 8. When, however, this ceases, the base current need is reduced and the bias on diode 8 is stated to fall to a value at which it becomes substantially non-conductive. The input resistance to the base is accordingly increased, and the base current is reduced thus reducing charge-carrier storage in the base. Diode 9 conducts to permit rapid discharge of the base when a reverse bias potential is applied to the base to switch the transistor off. The invention is stated to be applicable to simple pulse amplifiers in which the capacitor 6 is omitted, Fig. 7 (not shown). A resistor may be connected in series with either or both of diodes 8 and 9. The branch including diode 8 may also include a pulse differentiating circuit, Fig. 8 (not shown).
Patent GB-287446-A (GB)
Title: Electric lamp specially applicable for automobile head-lights
IPC: H01K9/08
Filed: 1928-02-23
Abstract: 287,446. Tricoche, A. March 19, 1927, [Convention date]. Multiple - filament lamps; reflectors and screens within bulbs.-In bulbs for vehicle head-lights &c. of the kind comprising two filaments 3, 6 one arranged at the focus of the main reflector 5 to project the main beam and the other arranged in front of the focus to project a diffused beam, a reflecting or other screen 8 is arranged to prevent light from the second filament from reaching the main reflector. The bulb may be of diffusing or coloured glass.
Patent GB-1533271-A (GB)
Title: Process for separating non-fibrous material from mineral wool
IPC: C09K23/28
Filed: 1976-02-13
Abstract: 1533271 Cleaning mineral wool fibres BEROL KEMI AB 13 Feb 1976 [13 Feb 1975] 5807/76 Heading B2A Mineral wool fibrous material carrying non- fibrous material is dispersed in an aqueous solution of a cationic or ampholytic surfactant having at least one hydrophilic group containing at least 8 C atoms and at least one hydrophilic group having at least one N or S atom, and the non-fibrous material is separated from the dispersed fibrous material e.g. by settling or centrifugation. Removal of the non-fibrous contaminants results in improved dispersibility of the mineral wool fibres in water.
Patent GB-635711-A (GB)
Title: Mechanical oscillograph indicator
IPC: G01S1/02
Filed: 1947-02-28
Abstract: 635,711. Indicating-apparatus. STANDARD TELEPHONES & CABLES, Ltd. Feb. 28, 1947, No. 5834. Convention date, Sept. 1, 1945. [Class 100 (iv)] [Also in Group XL (c)] An oscilloscope, for use in a continuously rotating radio direction-finding system, comprises a fluorescent screen, means for projecting thereon a radial line of illumination which rotates in synchronism with the directional receiving aerial, and a shutter arranged to obdurate a portion of the radial line to an extent dependent upon the amplitude of the received radio signal. A shutter, comprising slotted disc 35 and movable sector 33, Fig. 2, is mounted for rotation upon a shaft 13, Fig. 1, which is synchronized with the rotation of directional aerial 1 by their being driven respectively by synchronous motors 40 and 3 from a common power supply 42. An ultraviolet lamp 31, also mounted for rotation upon the shaft 13, is supplied over slip-rings 18, 19 from power supply 15. The output from the radio receiver 5 is fed, over slip-rings 11, 12 to shutter-movement control 28 which rotates the sector 33 relative to the disc 35 through an angle dependent upon the signal applied thereto. An illuminated line having a length proportional to the received signal strength is produced on fluorescent screen 38 and as the aerial 1 rotates a pattern, as shown in Fig. 2a, and indicating the direction of the transmitter from which signals are being received, is produced. Fig. 3 shows an alternative form of shutter which causes only the edges of the pattern traced out to be illuminated. Instead of the slotted disc 35, a tubular light source may be used in conjunction with the movable sector 33. Fig. 5 illustrates an alternative arrangement in which a stationary source of ultra-violet light is used and the shutter is rotated by a pinion 61 coupled to gearing cut into the periphery of the slotted disc. In this arrangement, the pattern to be displayed may be presented as an absence of illumination on an otherwise uniformly illuminated screen. The Specification as open to inspection under Sect. 91, also describes a system similar to that illustrated in Fig. 1, but wherein the axis of rotation of the sector 33 does not coincide with the axis 13. This subject-matter does not appear in the Specification as accepted.
Patent GB-542211-A (GB)
Title: Improvements in or relating to optical projection apparatus
IPC: G03B21/06
Filed: 1939-03-15
Abstract: 542,211. Optical-projection apparatus. ANCIENS ETABLISSEMENTS BARBIER, BENARD & TURENNE. March 15, 1939, No. 5837/40. Convention date, March 15, 1938. Divided out of 526,404. [Class 97 (i)] Illumination of an episcopically projected object is effected by at least one high pressure mercury or other vapour lamp and one or more neon or other correction tubes producing therewith a daylight effect. As shown, mercury vapour lamps 10, 11 over opposite sides of the object carrier 3, and coiled or other neon tubes 14 in a housing 15 are provided. The neon tube may form a circular ring above and surrounding the object.
Patent GB-671584-A (GB)
Title: O-(halophenyl) o-alkyl amidothiophosphates
IPC: C07F9/24
Filed: 1950-03-08
Abstract: The invention comprises o-(halophenyl) o-alkyl amidothiophosphates of formula <FORM:0671584/IV (b)/1> where n is from 1 to 4, X is chlorine or bromine, and R is cyclohexyl or alkyl.  They may be prepared by treatment of a dichlorothiophosphate <FORM:0671584/IV (b)/2> with an alcohol ROH or its alcoholate to give the o-(halophenyl) o-alkyl chlorothiophosphate, which is further treated with ammonia.  The above dichlorothiophosphate may be prepared by treatment of a bromo- or chloro-phenol with PCl3 to give the o-(halophenyl) dichlorophosphite, which is then heated with sulphur.  In the examples: (1) o-(4-chlorophenyl) dichlorothiophosphate is treated first with ethanol and then with ammonia to give o-(4-chlorophenyl) o-ethyl amidothiophosphate; (2) the o-(4-bromophenyl) (3) the o-(2 : 4-dichlorophenyl), (5) the o-(2 : 4 : 5-trichlorophenyl), and (11) the o-(2 : 4 : 6-trichlorophenyl) homologues are prepared in a similar way.  The preparation (4) of o-(2 : 4 : 5-trichlorophenyl) o-methyl amidothiophosphate is described; and (6) the o-isopropyl, (7) the o-sec.-butyl, (8) the o-tert.-butyl, (9) the o-n-dodecyl, and (10) the o-cyclohexyl analogues are prepared similarly.  o-(2 : 3 : 4 : 6 - Tetrachlorophenyl) o-isopropyl amidothiophosphate is also prepared (12).  Further compounds are mentioned in which X is bromine or chlorine and n is 1, 2, 3 and 4, and R is n-butyl, n-decyl, n-hexyl, n-octyl, cyclohexyl and n-dodecyl.
Patent GB-720775-A (GB)
Title: Apparatus for charging a shaft furnace
Inventor: TESCH ERIK TORSTEN ANDERSON
IPC: C21B7/18
Filed: 1953-03-03
Abstract: 720,775. Charging shaft furnaces. TESCH AKTIEBOLAG, T. A. March 3, 1953, No. 5906/53. Class 51 (2). In a bell-type charging device for a shaft furnace having superposed hoppers with a double bell closing the lower hopper and a fixed charge distributer co-operating with the lower member of the double bell, charge material deposited in the charging hopper B from the upper rotatable hopper C is distributed evenly in the shaft by the co-operation of the lower double bell member 9 with fixed concentric charge distributers 14 and 15, having upper frusto-conical sections and lower cylindrical sections. To discharge the hopper B, the double bell members 8 and 9 may be raised together, Fig. 8 (not shown), when charge material passes through the centre openings in the distributers 14 and 15. With the upper member 8 raised and the lower bell 9 in line with the outer distributer 14, Fig. 6 (not shown), charge material is spread over a peripheral annular area of the shaft and with the lower bell 9 in line with the inner distributer, Fig.. 7 (not shown), the charge is spread over an inner annular area of the shaft. The upper hopper bell 3 and the lower bell members 8 and 9 are attached to concentric lifting tubes as 24 and 28, actuated by cables 34, 35 and 37 connected to the pistons of compressed air cylinders 4, 22 and 25 respectively, a pipe 29 being provided for the supply of cold blast furnace gas to cool the concentric tubes. Setting of the lower bell 9 in line with the outer distributer 14 and with the inner distributer 15 is obtained by a power driven worm gear 26 and a screw-threaded rod 27 engaging in arm 31 attached to the cylinder 27, the supply of compressed air to the latter being discontinued during these operations. A thermostat 38 at the top of the shaft actuates a known electrical control device to cut off or reduce the blast air if the effluent gases reach a temperature which would damage the charging device.
Patent GB-942803-A (GB)
Title: Improvements relating to smallware looms
IPC: D03D35/00
Filed: 1960-02-19
Abstract: 942,803. Shuttleless smallware looms. BREVITEX ETABLISSEMENT POUR L'EXPLOITATION DE BREVETS TEXTILES. Feb. 19, 1960 [Feb. 26, 1959; Dec. 19,1959; Jan. 28, 1960], No. 5996/60. Heading D1E. A smallware loom comprises weaving units driven by common oscillating shafts 16, 22 and another oscillating shaft (not shown) carrying beatup reeds. Each weaving unit has a weft inserting needle 6, operated by bevel gears 14, 13 from the shaft 16, and a selvedge knitting needle 8 and selvedge thread guide 27. The knitting needle is carried by parallel arms 19, 20 oscillated by the shaft 22, whereby the needle moves along a shallow arc. The thread guide 27 is mounted on a lever 34 operated from the shaft 16 through a dog clutch 36,37 having lost motion between the dogs; a pivoted arm 30 causes the thread guide to follow a curved path to lay its thread in the knitting needle. By altering the height of the weft inserting needle 6 so that the weft is engaged or missed by the knitting needle, and by putting the selvedge thread guide 27 into or out of action by means of a setscrew 38, selvedges can be formed by knitting each weft loop through the preceding one, with or without a selvedge thread, or by knitting a selvedge thread through the weft loops without knitting the loops themselves.
Patent GB-993358-A (GB)
Title: Method of manufacturing synthetic fibres of vinylidene cyanide-vinyl acetate copolymer having excellent dyeability
IPC: C08L31/02
Filed: 1962-02-16
Abstract: Synthetic fibres of vinylidene cyanide-vinyl acetate copolymer having good dyeability are made by mixing a water-insoluble polymer containing 0.1-50 mol. per cent of sulphonate radical (defined as including sulphonic acid or a salt thereof) per unit molecule of the polymer with a vinylidene cyanide-vinyl acetate copolymer in such proportion as to provide an emulsion (the solvent or dispersant of which is a solvent for the vinylidene cyanide-vinyl acetate copolymer) containing 0.05% to 20 mol. per cent of sulphonate radical per unit molecule of total polymers. The solvent, or dispersing agent, for the emulsion may be dimethyl sulphoxide, aqueous dimethyl sulphoxide, dimethyl formamide, dimethyl acetamide, acetonitrile, aqueous acetonitrile, g -butyrolactone, aqueous acetone, ethylene carbonate, or an aqueous solution of one or more of acetone, methanol or dioxane together with zinc chloride, potassium rhodanide, sodium rhodanide, ammonium rhodanide or sodium nitrate.  In examples: (B) a solution of a mixture of 20% of copolymer consisting of 10 mol. per cent of potassium styrene sulphonate and 90 mol. per cent of styrene and 80% of vinylidene cyanide-vinyl acetate copolymer in dimethyl sulphoxide is wet-spun and heat stretched; (C) a 30: 70 polymer mixture of the emulsion of a copolymer consisting of 3 mol. per cent potassium styrene sulphonate and 97 mol. per cent styrene and the solution of vinylidene cyanide-vinyl acetate copolymer is spun similarly and the resulting filaments hot-stretched; (3) a copolymer emulsion consisting of 73 mol. per cent of methyl methacrylate, 25 mol. per cent of a -methyl styrene and 2 mol. per cent of sodium p-styrene sulphonate is dissolved in dimethyl formamide to form a 15% solution, which is mixed at a ratio of 2: 8 by weight with a 15% solution of vinylidene cyanide-vinyl acetate copolymer; (4) the sodium sulphonate derivative of polystyrene is mixed with vinylidene cyanide-vinyl acetate copolymer and wet-spun; (5) a sodium vinyl sulphonate-acrylonitrile copolymer in 25% solution in dimethyl formamide is mixed with a 25% solution of vinylidene cyanide-vinyl acetate copolymer at a ratio of 15: 85 by weight and dry-spun; (6) a sodium allyl sulphonate/vinyl acetate copolymer is mixed with vinylidene cyanide-vinyl acetate copolymer at a ratio of 1: 9 by weight, wet-spun and heat-stretched; (7) a copolymer emulsion made from methyl methacrylate, sodium p-styrene sulphonate and divinyl benzene with dimethyl formamide as dispersing agent, is mixed with a vinylidene cyanide-vinyl acetate copolymer at a mixture ratio of 15: 85 to form a mixed spinning solution which is wet-spun and heat-stretched; (8) an acrylonitrile copolymer containing 3 mol. per cent of sodium p-styrene sulphonate is added to vinylidene cyanide-vinyl acetate copolymer at a ratio of 15% thereto, wet-spun and hot-stretched.