baber/WOPTO huggingface dataset:
Patent GB-955239-A (GB)
Title: Stretching polyacrylonitrile
IPC: D01F6/18
Filed: 1962-08-21
Abstract: 955,239. Spinning polyacrylonitrile. AMERICAN CYANAMID CO. Aug. 21, 1962 [Dec. 18, 1961], No. 32125/62. Heading B5B. Shaped structures e.g. films, ribbons, tapes and filaments of an acrylonitrile polymerization product are made by extruding a spinning solution of the polymer into a coagulating medium, washing the resulting gel structure, and stretching the washed, wet gel structure in two heated aqueous baths, the second bath being at higher temperature than the first bath. The polymer, may be a homopolymer of acrylonitrile, or a copolymer, preferably at least 80% acrylonitrile combined with other monomers containing e.g. a single CH 2  = C< group. The solvents for formation of the spinning solution may be e.g. dimethyl formamide, dimethyl acetamide, ethylene carbonate, dimethyl sulphoxide or concentrated inorganic salt solutions e.g. of sodium thiocyanate or zinc chloride. The coagulating medium may be a liquid, e.g. water or a dilute salt solution, in a wet-spinning process, or a gas, e.g. in a dry-spinning process. The washing liquid is preferably water or a dilute salt solution maintained at less than 20 C. The first aqueous bath for the first stretching stage is preferably water, at 40-90 C.; the second, for the second stretching stage, is preferably water at 95-100 C. In one embodiment, a copolymer comprising at least 80% acrylonitrile copolymerized with one or more of methylacrylate, vinyl acetate, methyl methacrylate or methyl vinyl pyridine, dissolved in aqueous sodium thiocyanate, is fed through conduit 11 into heated spinning device 12. The solution is extruded into coagulant 13, e.g. water at - 15 C.-+ 10 C. and the resulting filaments 16 passed to rolls 17 where they are washed to less than 1% salt on wet gel basis with cold aqueous liquid. The filaments 16 are then passed into heated aqueous stretching baths 20 and 22 between which is power-driven roller 21 to proportion the stretch between the baths. Preferably the filaments are stretched 5 to 13 times; 1<SP>1</SP>/3 to 7 times in the first bath, the remainder in the second. The filaments are then led to rolls 24, which may be heated to dehydrate and collapse the gel structure. The use of a plurality of heated aqueous stretch bath of sequentially increasing temperature (three or more such baths may be used) permits the filaments to be stretched at optimum temperature and facilitates the dehydration of the stretched gel structure.
Patent GB-470563-A (GB)
Title: Improvements in screw stopper closures for cans and the like
IPC: B65D41/04
Filed: 1936-11-20
Abstract: 470,563. Closures for cans. RICHARDS, A. Nov. 20, 1936, No. 32147 /35. [Class 125 (iii)] A screw-cap or plug stopper for cans, tanks, bottles, &c. has a metal disc d disposed between two concave surfaces f wherein a rubber ring c is clamped and binding on the ring is prevented
Patent GB-1396685-A (GB)
Title: Electronic flash gun for photographic picture-taking purposes
IPC: H05B41/32
Filed: 1973-07-05
Abstract: 1396685 Electronic flash control FRANKE & HEIDECKE GmbH 5 July 1973 [10 Aug 1972] 32148/73 Heading G2A Closing an ignition switch 8 discharges a capacitor 7 through a transformer 10 to ionize a flash tube 2 connected to a storage capacitor 3 by a resistor 14, and the resulting positive pulse is conducted via capacitors 18, 26 and a voltage divider 27, 28 to fire a thyristor 17 which shorts out resistor 14 and provides a full flash current flow through tube 2. This ensures that the tube is ionized before commencement of the main discharge. The light reflected from the object is detected by a photo-electric measuring device 21 which at a pre-set level fires a switch 19 whereby capacitor 18 discharges to provide a reverse current flow through switch 17 and via capacitor 26 and divider 27, 29 to provide a negative pulse on the control electrode 29 of switch 17. This switches off switch 17 to terminate the flash. The negative pulse on the electrode 29 reduces the time required for switch 17 to switch off and therefore reduces the capacitance required of capacitor 18.
Patent GB-1469473-A (GB)
Title: Apparatus for use in the continuous production of steel from iron ore pellets sinter or the like
IPC: C21B13/00
Filed: 1974-07-22
Abstract: 1469473 Arc furnaces KLOCKNER-WERKE AG 22 July 1974 [25 Aug 1973] 32335/74 Heading F4B A shaft furnace for the direct production of steel from iron ore, pellets, sinter, &c comprises a shaft 1 of substantially uniform cross-section, electrodes 4 extending downwardly through a hollow guide 3 and ports 8 and 9 for the introduction of reducing gases, which may also pass from the guide around the electrodes. The hearth 6 is of generally hemispherical configuration with a taphole 7.
Patent GB-774921-A (GB)
Title: Improvements relating to spindles for textile spinning and like machines
Inventor: BELL WILLIAM OGILVIE
IPC: D01H7/04
Filed: 1954-11-09
Abstract: 774,921. Spinning spindles. T.M.M. (RESEARCH), Ltd. Oct. 28, 1955 [Nov. 9, 1954], No. 32386/54. Class 120 (2). [Also in Group XXXIV] In a spinning spindle of the type in which the spindle blade 11 is rotatably supported in the bolster 10 by means of a tubular insert, the insert incorporates two co-axial components, viz., an outer component 13A, 13B and an inner component 14 the former of which is seated in the bolster and the inner of which is seated in the outer component such that the components are capable of pivotal movement together or independently about the seatings. The seatings are preferably of spherical form and there is sufficient clearance between the components to permit selective oscillatory and gyratory motion between the components and between the outer component and the bolster. The blade 11 is mounted in a journal bearing 15 in the outer component and a footstep bearing 18 in the inner component and the outer component may incorporate a loosely fitted sleeve 13C which is resiliently pressed in an axial direction against an abutment at the base of the inner component.
Patent GB-1511777-A (GB)
Title: Extruder head
IPC: B29C48/475
Filed: 1976-08-04
Abstract: 1511777 Cross-head tube extrusion die BEKUM MASCHINENFABRIKEN GmbH 4 Aug 1976 [22 Aug 1975] 32453/76 Heading B5A In a cross-head die for the extrusion of a tube of thermoplastics material, e.g. a blow moulding parison extruded by an accumulator piston of the die head (not shown), the material flows from a lateral inlet 15 in opposite directions along passages 11A, 11B around a mandrel 5, to recombine at 180 degrees offset seams 37a, 37b as a single tubular stream which is then concentrically divided into streams flowing around and within a ring 21, at the downstream end of which the material is again recombined into a single tubular stream which is delivered to the extrusion orifice, and at least one of the streams flowing around or within the ring 21 comprises a plurality of streams in channels defined between helically oriented baffles 20, 120, extending between the ring 21, and the mandrel 5 or the surrounding body of the die. In the embodiment, the single recombined stream at the downstream end of the ring 21, comprises the seams 37a, 37b, which are offset from seams 39a to 39f, produced by the baffles 20 in the material flowing within the ring 21 and which may extend helically. Grooves 44 may run alongside the baffles to facilitate the confluence of the material at the downstream ends of the baffles, and prevent stagnation of the material, e.g. when changing the colour of the material. The baffles 20 and passages 11a, 11b produce heating and orientation in regions giving rise to lesser thickness in a blow moulded parison, which may be minimized by the introduction of less heated and oriented material into the regions, effected by die housing grooves 45 aligned with the downstream ends of the baffles 20, and mandrel grooves 46 aligned with the confluences 10 of the passages 11A, 11B.
Patent GB-663350-A (GB)
Title: Improvements in shaft couplings
IPC: F16D3/74
Filed: 1949-12-20
Abstract: 663,350. Universal joints. MASCHINENFABRIK STROMAG GES. Dec. 20, 1949 [Dec. 28, 1948], No. 32589/49. Class 80 (ii) A flywheel, belt pulley or the like 4 is flexibly connected to a flanged member 5 on a shaft 8 by an S-section disc 1 of rubber or other elastic material, the ribbed edges of which are secured by clamping plates 3,6. The disc 1, having a radial or inclined slit to facilitate assembly, has one or more woven or fabric reinforcing layers. According to the Specification as open to inspection under Sect. 91, the reinforcing layers may be of wire or woven wire. This subject-matter does not appear in the Specification as accepted.
Patent GB-407462-A (GB)
Title: Improvements in or relating to tennis posts and the like
IPC: A63B61/02
Filed: 1932-11-18
Abstract: 407,462. Tennis posts. LAKE, A. E., 113, Dunmow Road, Bishop's Stortford, Hertfordshire. Nov. 18, 1932, No. 32606. [Class 20 (i).] A portable tennis post is formed of hinged members forming post, base, and strut, which can collapse on each other. The post is formed of two uprights which are crossconnected and carry a pulley A<1> at the top for the net cord, these members sloping outwardly towards the ground. The base is formed of two strip members B<1>, B<2> which embrace the post and are cross - connected by a pinning-plate B<4> at the rear and by a bearing plate B<3> at the front, provided with two clips B<5> under which is slipped the end plate C' of the strut members C<1>, which are pivoted at their upper ends to the post.
Patent GB-455536-A (GB)
Title: Improvements in or relating to electric clocks
IPC: G04C11/08
Filed: 1935-11-25
Abstract: 455,536. Electric clocks. JUNGHANS AKT.-GES., GEB., Schramberg, W³rtemburg, Germany. Nov. 25, 1935, No. 32636. Convention date, Dec. 1, 1934. [Class 139] A pendulum clock having its own mechanical or electrical drive, is also controlled by means including an A.C. synchronous motor 1, a first contact 6 operated by the motor, a second contact 12 operated by the pendulum 19, and a coil 10 for re-energizing the pendulum, the circuit of the contacts 6 and 12 and of the coil being closed only when the pendulum is in phase with the impulses from the coil, i.e. at the right-hand end of its path. Contact 6 is rotated by the motor at an appropriate rate and 13 is a rubber buffer. A wheel 4, rigid with insulated disc 2 carrying the contact 6, has a weight 15 so that when current fails in the lighting mains 5 the contact 6 comes to rest away from the spring contact 11, so that the circuit of battery 9 is opened. Instead of battery 9, the circuit may be fed from the mains 5. The circuit for parts 6, 12 and 10 may include contacts 16 which are held closed so long as relay 17 is energized from the mains 5.
Patent GB-1489739-A (GB)
Title: Sample point interferometric system for optical figure monitoring
IPC: G01B9/02
Filed: 1976-08-06
Abstract: 1489739 Checking surfaces optically PERKIN ELMER CORP 6 Aug 1976 [13 Aug 1975] 32829/76 Heading G1M [Also in Division G2J]  A system for monitoring the configuration of a surface comprises light reflecting elements located at specific sample points on the surface, the elements each being oriented to reflect light to a preselected focal point, independent of the radius of curvature of the surface being monitored, each element having a reflective capacity detectably different from the adjacent portion of the surface, wherein beams of light are directed at the elements and the reflected beams are compared for intensity and phase change by interferometric means. In Fig. 1 the light beams are provided by means of a laser 10 directed at beam-splitter 12, producing a reference beam 15 which is reflected off oscillating reflector 16 back to the beamsplitter, and a measuring beam 14, directed to the reflecting elements and reflected back to the beamsplitter where it is combined with the measuring beam and directed to a detecting means 18.
Patent GB-342309-A (GB)
Title: Improvements in and relating to spools for photographic films
IPC: G03B17/30
Filed: 1929-10-30
Abstract: 342,309. Roll-film spools. BAXENDEN, T. G., Lawrenny, Hempstead Road, Watford, and COLLYEAR, T. R., Leverno, Beechcroft Road, Bushey, both in Hertfordshire. Oct. 30, 1929, No. 32985. [Class 98 (i).] The threading channel in a metal spool is constituted by a U-shape metal piece slotted at the bend. The guide may form part of the metal spool itself as by bending a blank 6, Fig. 2, to the shape shown and then bending the upper parts of the U, above the sunk depressions 10, 10<1>, outwardly so that the edges 8 meet in a line coincident with the slot 7 in the bend, as shown in Fig. 3. The edges 9 form flanges for securing the ends 13 which are formed with a keyhole 15 and tenons 16 which engage the end portions 11 of the inner guide. Alternatively an inner guide 11<1>, Fig. 4, may be made form a separate blank and positioned by means of the inturned edges 17 of the spool blank. The threading slot 12<1> is between the ends 17 and registers with the opposite slots 7<1>, 19 in the channel blank 11<1> and the spool blank respectively.
Patent GB-506591-A (GB)
Title: Improvements in or relating to fluid control cocks
IPC: F16K27/02
Filed: 1937-11-30
Abstract: 506,591. Screw - actuated valves. GAS LIGHT & COKE CO., and LLOYD, P. Nov. 30, 1937, No. 33014. [Class 135] A screw-actuated lift valve comprises a flatfaced valve member 6 attached to a screwed stem 5, a removable flat annular valve seating 9, a scale 17 surrounding the stem and mounted beneath a controlling knob 7 attached to the stem, and a pointer 19 movable over the scale by the knob 7. The valve member 6 is of disc form, and the valve seating is formed integrally with a threaded connection bush 8 screwed into the valve casing 1 up to a flange 10 and serving as the inlet or outlet of the cock. A lateral extension 13 of the valve casing has a flared opening 14 in which an outlet bush 15 is secured by a union 16. The maximum flow may be adjusted by means of interchangeable bushes 8 with different sized apertures.
Patent GB-763555-A (GB)
Title: Manufacture of salts with organic bases of monoazo-pyrazolone-dyestuffs
IPC: A47L15/00
Filed: 1954-11-15
Abstract: The invention comprises salts with organic bases of dyestuffs of formulae <FORM:0763555/IV(b)/1> where X is H or an aryl radicle, Y is an alkyl, phenyl or carboxylic acid, amide or alkyl ester group and Z is H, a halogen atom or an alkyl, trifluoromethyl or sulphonic acid group, the dyestuffs containing at least one sulphonic or carboxylic acid group.  They are made by reacting with the base a dyestuff obtainable by coupling the appropriate diazotized 2-nitraniline and pyrazolone.  The dyestuff salts dye lacquers and resins in yellow tints and may be used in wood staining compositions.  In examples which illustrate the preparation of the salts, the bases used are dicyclohexyl- and dodecyl-amine sulphates, guanidine thiocyanate and diortho-tolyl- and diphenyl-guanidine, aniline and benzylamine hydrochlorides, the diazo components being 2-nitraniline and its 4-sulpho- and chloroderivatives and 3-nitro - 4 - amino - 1-methyl - and trifluoromethyl-benzenes and the coupling components are 1-(21-sulpho-, 61-chloro-21-methyl-41-sulpho, 21-chloro-51-sulpho- and 21-methyl-41-sulpho-phenyl)- and 1-(51, 71-disulpho - 21 - naphthyl) - 3 - methyl - 5-pyrazolones, 3-methyl-5-pyrazolone, 1-(21-sulpho-, 41-chloro-21-sulpho- and 21-methyl-41 - sulpho - phenyl - and phenyl - 5 - pyrazolone - 3 carboxylic acids, 1 -(21 - sulphophenyl) - 3 - phenyl - 5 - pyrazolone, 1-phenyl - 5 - pyrazolone - 3 - carboxylic acid amide and 1 - (61 chloro - 21 - methyl - 41 - sulphophenyl) - 5 - pyrazolone - 3 - carboxylic acid ethyl ester.  Specifications 271,580, 277.371 and 293,067 [all in Class 2(iii)] are referred to.
Patent GB-447544-A (GB)
Title: Improvements in methods of making or moulding bricks and in apparatus therefor
IPC: B28B7/44
Filed: 1934-11-17
Abstract: 447,544. De - airing clay. WHITTAKER & CO., Ltd., C., and WHITTAKER, N., Dowry Street Ironworks, Accrington. Nov. 17, 1934, No. 33102. [Class 87 (ii)] Clay material used in the semi-plastic brick making process is de-aired by direct evacuation in the mould of a machine of the type having top and bottom pressing plungers by connecting the interior of the mould to a suction pump or the like. Passages b<1>, b<2> are made in the plungers B<1>, B<2> and are connected by pipes D<1>, D<2> to a suction pump. The plungers are faced with fine wire gauze to protect the open ends of the passages and these openings may be further protected by frog-forming panels F which have a grooved surface. A valve E in the pipe line is controlled by the press head through gearing e, e<1> and a chain f<1> attached to the head at c. Thus, as the plunger B<1> enters the mould, the valve E is opened. In a modification, a three way valve may be provided so that compressed air will be blown through the pipes D<1>, D<2> when the plungers leave the mould to clean them. The periodical "Claycraft ", Vol. VIII, No. 1 is referred to.
Patent GB-456859-A (GB)
Title: Improvements in or relating to gauze and like filters for internal combustion engines
IPC: B01D35/00
Filed: 1935-11-30
Abstract: 456,859. Joint - making packings. GRIFFITH, C. C., Waldron, Silverdale Avenue, Walton-on-Thames. Nov. 30, 1935, No. 33288. [Class 122 (iii)] [See also Group I] A sump filter for an internal-combustion engine comprises a wire gauze 1 provided with a margin of cork, vegetable fibre or other readily compressible material constituting a gasket adapted to form a fluid-tight joint at the crank-case junction. The margin may be two strips 2, 3 of cork with the gauze interposed and secured by adhesive or by copper eyelets 4 or steel or copper staples. Strips of vegetable fibre may be used. The cork may be formed by compressing granular cork with a binder.
Patent GB-893139-A (GB)
Title: Improvements in mechanisms for momentarily closing an electric switch
IPC: H01H13/28
Filed: 1958-10-17
Abstract: 893,139. Momentary-contact switches. ILLINOIS TOOL WORKS. Oct. 17, 1958 [Oct. 17, 1957], No. 33303/58. Class 38 (5). A mechanism for momentarily closing a switch comprises a tubular operating plunger 54, controlled by a spring 72 and slidable in a bushing 20, which, together with a spring-reaction base 34, is secured to the switch casing 10. A thimble 76, controlled by a spring 102, is slidable in the bore of plunger 54, but is normally fixed in the position shown in Fig. 3 by the engagement of balls 90, located circumferentially in holes 88, with a shoulder 70 and the wall of a cup 92. The latter is integral with a rod 94 and is slidable in the thimble 76 against a spring 104, a hole 82 allowing free passage of air. In operation, members 76, 94, are forced down by depression of plunger 54 until the rod 94 has depressed a flexible diaphragm 48 to operate the switch actuator 14, upon which further movement of rod 94 is prevented and the thimble 76 slides past the cup 92 so compressing spring 104. When the holes 88 are opposite a recessed shoulder 96, the balls 90 are forced inwards by the shoulder 70 to engage shoulder 96, so releasing the thimble 76 from the plunger 54 and locking it to the cup 92. The spring 102 thereupon forces the thimble up the bore of plunger 54 to release members 14, 48, the upward movement being limited by a ring 98, Fig. 6. Removal of operating pressure from plunger 54 allows the mechanism parts to return to their original positions.
Patent GB-832114-A (GB)
Title: A method of making shaped articles from animal bladders
IPC: A22C13/00
Filed: 1957-10-25
Abstract: A number of animal bladders are placed one within another over a former, at least one of each pair of adjacent surfaces having been coated with adhesive, and then heated to set them permanently to the shape of the former.  The bladders have initially been cleaned and inflated, softened with water for ease of manipulation and turned inside out.  In the example quoted, table lamps (both stand and shade) are made from cow bladders.
Patent GB-1506024-A (GB)
Title: Flare system vapour recovery
IPC: F23G5/50
Filed: 1975-08-11
Abstract: 1506024 Flare gas systems JOHN ZINK CO 11 Aug 1975 [9 Sept 1974] 33420/75 Heading F4T In a waste gas flare system a waste gas recovery arragement comprises a conduit 12 for supplying the gases to the stack, a sensor 18 for sensing the pressure or the flow rate of the gas and signalling to a control 40, 42, for starting the motor 48 of a compressor 52, and for signalling to a means 36 for opening a valve 54 which is normally closed and is connected to conduit 12 and to compressor 52, the outlet 57 of which is connected through a check valve 58 to a fuel-using system 49. In operation, compressor 52 is started by a signal from sensor 18, which acts through a line 22, pressure switch 40, starting relay 42 and motor 48, and a minimum flow of vapour passes into fuel system 49 via a by-pass 51 and the compressor, and a flow 16 passes to the flare stack. If the gas pressure or flow-rate increases in conduit 12, valve 54 is opened and flow 56 increases whilst still allowing flow 16. In a modification, conduit (64) Fig. 2 (not shown), is inserted into a water seal (102). Steam enters conduit 26 and passes to the stack along conduit 28 when the signal 30 from sensor 18 opens valve 24.
Patent GB-973965-A (GB)
Title: Improvements in thermally induced reproduction of graphic originals
IPC: G03G5/05
Filed: 1960-09-29
Abstract: Ferric stearate is prepared by adding an aqueous solution of one mol. of ferric sulphate to an aqueous solution of three mols of the sodium soap of commercial triple-pressed stearic acid. This acid has a melting point of 53 DEG C. and supposedly contains a minor amount of other fatty acids.  The precipitate of ferric stearate is filtered off, washed separately with water and alcohol and dried at room temperature. It softens or melts in the range 70 to 95 DEG C. Specification 829,022 is referred to.ALSO:Ferric stearate is dispersed in a solution of nitrocellulose in a mixture of toluene and acetone by grinding in a ball mill.  The product may be coated on to paper for use in a thermographic copying process (see Division G2). Ethylcellulose may be used in place of nitrocellulose. Specification 829,022 is referred to.ALSO:A carbon paper or typewriter ribbon comprises pyrogallol dispersed in a coloured wax composition and thinly coated on a paper or fabric carrier.  Specification 829,022 is referred to.
Patent GB-414371-A (GB)
Title: Improvements in bearings particularly for cyeles
IPC: B62K19/34
Filed: 1932-12-28
Abstract: 414,371. Ball bearings. ALLEY, G. M., 48, Salterford Road, Tooting, London. Dec. 28, 1932, No. 33609. [Class 12 (i).] To prevent movement of the ball cup b from its adjusted position in a cycle bottom bracket or like bearing, and to facilitate adjustment of the cup within close limits, the threaded part of the cup has two diametrically opposite grooves f in which ride two inwardly projecting pips on a washer a having a serrated or suitably roughened face c which engages a corresponding face d on the bracket, or on a member secured thereto. The washer a prevents rotation of the cups b whilst the lock ring g is screwed home. Reference has been directed by the Comptroller to Specifications 13658/95, 18898 /95, and 28506 /97, [all in Class 12].
Patent GB-337166-A (GB)
Abstract: 337,166. Baker, G. J., Baker, J., and Baker, C. A. Oct. 8, 1929. Pattern books.-In a wallpaper or like pattern book, any one of a set of main patterns a may be associated with any one of a set of border or subsidiary patterns c which are mounted in one cover b of the book. As shown, the subsidiary booklet is permanently attached to the cover b by a flap d and is located in position when the book is closed by a strap fastener e, which may be released for the purpose of comparing the patterns. Specifications 21063/99 and 212,149 are referred to.