baber/WOPTO huggingface dataset:
Patent GB-823261-A (GB)
Title: Improved melt-spinning apparatus
IPC: B29C48/08
Filed: 1956-09-03
Abstract: <PICT:0823261/IV (a)/1> In melt-spinning apparatus of the type in which the molten material is supplied by a screw-type extruder to a positive displacement metering pump of the rotary gear type, the driving shaft of the metering pump is driven by the screw of the screw type extruder or pump, the drive being taken from the end of the screw at the discharge end of the screw pump and the coupling or other drive from the screw to the metering pump being enclosed in a casing or housing, the free space in which communicates with the free spaces in the screw pump and metering pump casings respectively and the joints between the drive casing and the screw pump and metering pump casings respectively being liquid-tight. As shown in Fig. 1, grains of polymer 2 in the supply vessel 1 are melted by the spiral tube melting grid 5 to which a heating fluid is supplied through the inlet end 6 and thereafter flows through the heating jacket 9 surrounding the melt receiver 8 and the heating jacket 20 surrounding the casing 13 of a screw pump 12. The melt flows through channels 10, 11 to the screw pump 12 in which the melt is moved towards the discharge port 25 by the screw 14 integral with the shaft 15 carrying the gear-wheel 16.  The melt is pumped under pressure through the discharge port 25 and inlet 26 to the metering pump 27 which supplies the melt through duct 34 and filter 35 to the monofil spinneret 38. The discharge end of the screw 14 is integral with a journal 24 provided at its free end with a groove 31 and rotatably mounted in the bore 23 in the closure 21 attached to casing 13 by bolts 22.  The tongue 30 at the free end of the shaft 29 of the gear pump 27 fits into the groove 31.  The pump 27 is attached to the closure 21 by bolts 28. Melt leaking out of the pump 27 is immediately picked up by the fresh melt at the discharge end of the screw pump and is at once returned to the gear pump together with fresh melt.  Decomposition and carbonizing of melt due to long residence in the pump assembly are thereby prevented and the gear pump does not require a packing gland.  In the other illustrated embodiment of the invention the melt is delivered by the screw pump to three metering gear pumps in parallel via a liquid-tight housing containing a gear-wheel coupled to the discharge end of the screw pump screw and mounted on the drive shaft of one of the gear pumps and also gear-wheels mounted on the shafts of the other two gear-pumps.  The first gear-wheel drives the other gear-wheels either directly or through intermediate gearwheels, all the gear-wheels being in the same plane.
Patent GB-817715-A (GB)
Title: Flexible profiled plastic threads or strips suitable for the manufacture of sliding clasp fasteners and a method for their production
IPC: A44B19/10
Filed: 1956-09-04
Abstract: Relates to sliding clasp fasteners comprising interengaging helices of plastic strip and consists in the extrusion of profiled plastic strip through a nozzle having a circular inlet and narrowing towards an outlet slot, the outlet having a ratio between the axes of cross-section which exceeds the ratio between the axes of cross-section required in the strip, the extruded strip being cooled and immediately drawn to the desired uniform profile.  Suitable plastic materials are polyamide, polymethane and polyacrylonitrile. A suitable cross-section is oval; or one with one side rounded and the other flat.  Beside being formed into a helix, the strip may be given hook-like or looped configurations.  Specification 547,663 [Group XXV] is referred to.
Patent GB-809499-A (GB)
Title: Improved reciprocatory gas compressor and pneumatic suspension system incorporating such compressor
IPC: F04B39/00
Filed: 1957-08-29
Abstract: 809,499. Compressors. GENERAL MOTORS CORPORATION. Aug. 29, 1957 [Sept. 17, 1956], No. 27213/57. Class 8(1). [Also in Groups XXVI, XXXII and XXXIV] A reciprocatory-type compressor comprises a connecting rod 100 having an integral cupshaped socket 96 at one end for receiving the crank pin 92 of the crankshaft 74. As described, the compressor is incorporated in a closed air suspension of a vehicle and is mounted for belt-drive of the crankshaft from the electrical generator 25, Fig. 2, of the vehicle. The cast aluminium body 32 of the compressor comprises a ribbed cylinder 34 with sintered iron liner 42, crank-case 36 and oil reservoir 38. The crankshaft 74 is carried in bearings 76, 78 in a support 60 secured to the open side face 58 of the crank-case 36. The connecting rod 100 is of cast aluminium and has sintered bronze bearing 106 for a gudgeon pin 108 press-fitted in a piston 114. A reed valve 134 controls an intake port 132 in the top of the piston in accordance with pressure differential on opposite sides of the latter. A second such valve 52 similarly controls an outlet port 50 in the cylinder head 48. A gravity-feed lubrication system comprises passages 148, 150, Fig. 6, leading from the oil reservoir 38 to the annular space 70 around the crankshaft 74 and thence by passages 154, 158, 164 to the hollow interior of the crank pin 92 ; radial passages 168 in this pin lead to a circumferential groove 170 and thence through a longitudinal bore 172 in the connecting rod to the gudgeon pin bearing 106. The intake 22, Fig. 2, and outlet 50 of the compressor are connected, respectively, with low pressure and high pressure tanks which are connected through valves with the air springs of the vehicle. It is arranged that, once the air system has been filled, the compressor transfers air from the pressure in this tank at the desired level; when this pressure is reached, the compressor continues to function mechanically without passing air to the tank until the pressure falls below the desired level.
Patent GB-1430715-A (GB)
Title: Toy
IPC: A63B67/08
Filed: 1974-06-19
Abstract: 1430715 Manipulative toys J L BASEVI 19 June 1974 27225/74 Heading A6S A manipulative toy comprises a longitudinally curved track 1 of channel section 6 to receive a tennis, &c ball 5, legs 4 connecting the track to a handle 1. As shown, the track 1 is arcuate in transverse cross-section, but alternatively it may be U or V shaped. Stops 2A, 2B are as shown provided at the ends of the legs 4. The handle 3 is located at the pivotal centre of the track 1. The toy is made of plastics.
Patent GB-1389744-A (GB)
Title: Electrophotographic developer
IPC: G03G9/113
Filed: 1972-06-12
Abstract: 1389744 Coated particles for electrophotographic developer INTERNATIONAL BUSINESS MACHINES CORP 12 June 1972 [23 June 1971] 27302/72 Heading B2E An electrophotographic developer includes carrier particles and toner particles, the carrier particles each having an interior core portion and a surface layer which comprises at least a major portion of carboxylated polyethylene ionomer. The core may be of sand, glass, metal e.g. iron or steel, magnetic oxides and alloys, e.g. copper-nickel-iron. The coating may be applied to the particulate core material by dipping, spraying, tumbling the core material with a coating solution in a barrel, or by using a fluidised bed. The core material may be pre-treated with a primer, e.g. polyvinyl butyral resin, vinyl chloride terpolymer, polymethyl methacrylate. Other pre-treatments include cleaning, pickling and etching. Pigments and other polymers may be added to the ionomer coating to modify the triboelectric behaviour of the coating.
Patent GB-1029178-A (GB)
Title: Electric motor driven refrigerating compressor
Inventor: GRAUPNER KARL-HEINZ
IPC: H02K9/10
Filed: 1963-07-10
Abstract: 1,029,178. Refrigerating. DKK SCHARFENSTEIN VEB. July 10, 1963, No. 27307/63. Heading F4H. [Also in Division H2] In an electric motor-driven compressor comprising mounted in a housing 1, 2 an electric motor on whose rotor 10 is a bladed fan 17 which passes through a cylindrical gap 20 between the stator and rotor a portion of refrigerant vapour introduced into the housing, such portion is guided towards the gap by outwardly inclined surfaces 19 between the fan blades 17a.
Patent GB-275143-A (GB)
Title: Improvements relating to direction indicators for motor-cars and other vehicles
IPC: B60Q1/34
Filed: 1926-11-01
Abstract: 275,143. Wood, J. W. July 30, 1926, [Convention date]. Road-traffic signals on vehicles.-A pointer 21 is arranged to turn about a vertical axis through 180‹, a horn being actuated automatically while the pointer is being turned from one position to another and the pointer being automatically illuminated only when it is in an indicating position. A drum 4 carrying the pointer or hand is turned by Bowden wires and is connected in the horn circuit so as to make contact with a plunger 28 on a fixed part 1 of the device when the drum moves. Insulated parts 29 of the drum break the circuit when the hand is in indicating position. Illuminating lamps in a reflector 26 are connected to plunger 30 on the drum 4 and contacts 31, 32 on the part 1 so that the lamps are only lit when the hand is in its forward or sideways position. The hand 21 may be pivoted to its arm 22 so that it may be raised by pulling a cable 42, as shomn in Fig: 6.
Patent GB-392812-A (GB)
Title: Apparatus for spreading liquid bituminous materials upon roads
IPC: E01C19/17
Filed: 1932-10-03
Abstract: 392,812. Tar heating and spraying apparatus. GOUVERNET, F. P., Avenue Montmajour, Arles-on-Rhone, France. Oct. 3, 1932, No. 27441. Convention date, Oct. 17, 1931. [Class 107.] Apparatus for heating and spreading liquid bituminous materials on roads comprises a vehicle carrying a reservoir 1 and a boiler 4 adapted to be connected in a closed circuit so that heating is effected by thermo-siphon action, and a pump 5 for charging the reservoir and spreading the heated material. The reservoir and boiler are connected by a pipe line 21, 22, 24, having two three-way cocks 19, 23 connected respectively with the delivery pipe 20 of the pump 5 and a tube 25 leading to the distributing member 8, as shown in Fig. 2. From the upper part of the boiler a valve-controlled pipe 27 leads to the reservoir. The pump 5, which is driven by a motor 6, is arranged with its suction pipe 18 connected through a three-way cock 16 with a pipe 15 leading to the reservoir and also to a pipe 17. The reservoir is also provided with a pipe 12 leading to a distributer 14. By suitably adjusting the cocks 16, 19, 23, the following operations may be effected: (1) heating of the material by allowing circulation through the pipes 21, 22, 24 to the boiler 4 and through the pipe 27 to the reservoir 1 ; (2) filling of the reservoir by connecting the pipe 17 with a vat and causing the pump 5 to draw the material through the pipes 17, 18 and discharge it through the pipes 20, 21 to the reservoir ; and (3) spreading of the material either by gravity through the distributer 14 or through the distributer 8 by means of the pump 5 by way of the pipes 15, 18, 20, 22, 25. Alternatively, charging of the reservoir and spreading may be effected by an air compressor 9 instead of by the pump 5, and such compressor is driven by a motor 11 as shown in Fig. 3, and has its suction and delivery pipes 29, 31 connected with a four-way cock 32 whereby these pipes may be put into communication with the atmosphere through a pipe 34 or the reservoir through a pipe 33. To fill the reservoir, the cock 32 is set so that the compressor 9 draws air from, and creates a vacuum in, the reservoir whereby liquid is caused to enter the reservoir through the pipes 17, 15. Spreading is effected through either or both of the distributers 8, 14 by opening the valves in the corresponding pipe lines and adjusting the cock 32 so that the compressor pumps air to the reservoir. One motor may be provided for driving either the pump 5 or compressor 9. If desired, a valve-controlled pipe of large diameter may extend between the reservoir and the lower part of the boiler for use when very thick tar is to be heated.
Patent GB-886686-A (GB)
Title: New dyestuffs containing hydrocarbon radicals capable of fixation on textile fibres
IPC: C09B62/002
Filed: 1958-08-27
Abstract: The invention comprises dyestuffs of the formula <FORM:0886686/IV (c)/1> wherein A is a polycyclic aromatic hydrocarbon radical which contains at least 4 condensed rings and is bound to -NHX directly or through -SO2-NH-R- or -SO2OR- where R is an organic residue attached to the residue -NHX while the sulphur atom is attached to A, m is 1 or 2, n is 1-4 and X is a chloropropionyl group or a radical of the formula <FORM:0886686/IV (c)/2> where Z is chlorine or a substituted or unsubstituted amino group or a substituted hydroxyl group. Polycyclic aromatic hydrocarbon radicals mentioned are pyrene, perylene, tetracene, rubicene, periflanthene and decacyclene.  The dyestuffs are made by condensing an amine of the formula <FORM:0886686/IV (c)/3> with a chloro-propionyl chloride or with a compound of the formula <FORM:0886686/IV (c)/4> and, if desired, when Z is chlorine, reacting the product with ammonia or with an aliphatic or aromatic amino- or hydroxyl-compound to replace one of the two chlorine atoms.  The dyestuffs dye and print cellulose textile materials in conjunction with an alkali treatment.  Examples are given. Specifications 831,371 and 838,337 are referred to.
Patent GB-1176451-A (GB)
Title: Studded Heat Exchanger Tubes
Inventor: STRAIGHT HARRY FRANKLIN JR
IPC: F28F1/12
Filed: 1968-06-10
Abstract: 1,176,451. Heat exchange tubes; boilers; liquid heaters. ESSO RESEARCH & ENG. CO. 10 June, 1968 [30 June, 1967], No. 27510/68. Headings F4A and F4S. A steam generator or like furnace 10, Fig. 1, comprises heat exchanger tubes 18 mounted in the combustion or economizer section 14 which extends transversely of the flow of heating gases from burners 24 passing to a flue 26, each tube having metallic studs 20, Fig. 2, welded thereto and positioned in staggered rows about approximately 190 degrees of the tube periphery, leaving the remainder of the periphery free of studs. The tubes are mounted with the studs orientated towards the gas flow and in staggered rows wherein the tips of the studs of one tube lie in the stud-free zone of the adjacent tube in the adjacent layer.
Patent GB-1065816-A (GB)
Title: Process for simultaneously bleaching and dyeing cellulose textile fibres
IPC: D06L4/10
Filed: 1964-07-03
Abstract: Textile fibres of cellulose as defined are dyed and bleached simultaneously by the application of sulphuric acid esters of leuco vat dyes in an alkaline bath in the presence of hydrogen peroxide as bleaching agent followed by development in vats preferably containing sulphuric acid and sodium nitrite.  Wetting, dispersing, stabilising and sequestering agents are also used.
Patent GB-1261686-A (GB)
Title: Improvements in plasticizing wood and the production of shaped wooden articles
Inventor: HUTTUNEN JOUKO
IPC: B27K3/16
Filed: 1970-06-08
Abstract: 1,261,686. Softening wood. NESTE OY. 8 June, 1970 [10 June, 1969], No. 27552/70. Heading D1P. Wood is softened by impregnation with hydrazine whereupon it may be readily shaped and the hydrazine removed, leaving the wood stable in its new shape. The final wood is harder than the original; this may be enhanced by compression. Hydrazine recovered, e.g. by pressing or heating, may be reused. The hydrazine may be used pure or in, e.g. aqueous solution. Vacuum and/or pressure may be used to assist impregnation, or the hydrazine may be applied by brushing. A heating step increases the plasticity of the impregnated wood.
Patent GB-283676-A (GB)
Title: Improvements in pressure-reducing valves
IPC: G05D16/10
Filed: 1926-11-04
Abstract: 283,676. Blakeborough, R. A., and Brotherton, C. Nov. 4, 1926. Pressure-regulating valves.-A valve device of the kind comprising a valve member adapted to reciprocate in an internal cylinder arranged axially in an outer casing and controlled by a pilot valve seating on the main valve has the auxiliary valve actuated by an external plunger constantly subject to outlet pressure and loaded by a weighted lever. Externally adjustable means are provided for regulating the inlet of pressure fluid to the actuating cylinder whereby small supplies, such as may be required during night time service, may be passed without movement of the plunger. In the form shown in the Figure, the lever actuated by the plunger is mounted on a shaft e connected by an arm f and link g to the spindle d<1> of the control valve d. In a modification the shaft e has internal and external toothed wheels engaging respectively with a rack on the pilot valve spindle and a toothed quadrant on the plunger lever. The supply of inlet pressure to the actuating chamber is controlled by a screwactuated valve n.
Patent GB-1356782-A (GB)
Title: Methods of making bi-metal strip products
IPC: C23C2/00
Filed: 1970-06-08
Abstract: 1356782 Casting a composite strip VANDERVELL PRODUCTS Ltd 8 June 1971 27636/70 Heading B3F [Also in Division C7]  A backing strip is moved along a linear path inclined at an angle of at least 10 degrees to the horizontal and whilst on said path is coated on an upper face with a molten alloy, the strip being cooled by application thereto of a coolant so that said alloy solidifies; the alloy must be one which when molten has different phases of different specific gravity up to a certain tempera- and is homogeneous above that temperature. As shown, steel strip 14, which may have an Al-6Si bonding layer thereon, is fed from 15 and 16 via preheater 18 to casting die 10 (cooled by coolant passages 12) where an Al-Pb alloy is fed to the strip, liquid coolant being supplied from 20 and collected at 22. Excess coating is removed by machine tool cutter 23, the strip is optionally heated at 24, and passes through nip-rolls 25 to storage. The coating-alloy may contain 10% Pb, up to 5% total Sn, B, Sb, Ti, Cu, Ni, Mn or Si, and balance Al.
Patent GB-247309-A (GB)
Title: Improvements in the construction of built-up boards
IPC: B41F27/04
Filed: 1924-11-19
Abstract: 247,309. Whitfield, J. H. Nov. 19, 1924. Printing - surfaces.- Boards such as those used in stereo-printing, or for other purposes, are built up from blocks 5 and 6, grooved and tongued along their edges so as to inter-engage, and arranged so that longer blocks 5 alternate with shorter blocks 6. The longer blocks are obtained by sawing up a tongued and grooved strip and grooving each sawn face, whilst the shorter blocks 6 are obtained by sawing up a doubly-tongued strip and then removing the parts 8. If desired all the edges may be grooved, and the connection effected by separate tongues. Adjacent blocks are arranged with the grain perpendicular, and a metal band is fixed round the edge of the, board.
Patent GB-236442-A (GB)
Title: Improvements in or relating to telephonic receivers
IPC: H04R13/02
Filed: 1924-11-19
Abstract: 236,442. Graham, E. A. Nov. 19, 1924. Magnetic instruments.-Telephone receivers having an adjustable magnet system operated by external means are provided with removable protecting means surrounding the external adjusting means. A protecting cap h, Fig. 2, may be screwed on, or secured by a bayonet joint to the boss g of the receiver, or the cap h, Fig. 4, mav be provided with a central pin or spigot i adapted to engage a hole, d<1>, screwed or otherwise, in the adjusting stem d. Specification 15369/15 is referred to.
Patent GB-1515391-A (GB)
Title: Hysteresis voltage supply included in deflection synchronizing waveform generator
IPC: H04N5/44
Filed: 1975-07-01
Abstract: 1515391 Transistor bi-stable and sawtooth deflection circuits RCA CORPORATION 1 July 1975 [9 Aug 1974] 27705/75 Heading H3T In a horizontal deflection system, e.g. for TV apparatus, a D.C. supply circuit comprises means for charging a capacitor 27 the voltage across the capacitor 27 being monitored and arranged to turn on switching means 38 and so connect the voltage across capacitor 27 to a synchronizing waveform generator 40 when the voltage across capacitor 27 is equal to a voltage V ON  greater than the minimum voltage required to operate generator 40 and to maintain the supply to said generator 40 until the voltage across capacitor 27 has fallen to a lower value V OFF  which is still sufficient to operate generator 40. The invention prevents faults due to temporary reduction in the A.C. line voltage while switching on, causing the thyristors 504 or 512 of the line deflection circuit to remain conductive for several cycles. As described, the line deflection circuit 514 is of the form described in Specification 1,260,375 and receives power from the A.C. line via a rectifier 21 and smoothing circuit 22...24. The rectified voltage is reduced and stabilized by components 25...29 so as to provide a supply across capacitor 27 for the synchronizing waveform generator 40. Transistors 33...38 form a hysteresis switch which delays connecting the supply to generator 40 until voltage V ON  is reached, when transistor 33 is turned on, so as to turn off the Darlington pair 35 and allow the switching transistor 38 to connect the supply to generator 40.
Patent GB-803967-A (GB)
Title: Improvements in or relating to screwdrivers
IPC: B25G1/08
Filed: 1954-09-27
Abstract: 803,967. Screwdrivers. FLORIN, G. H. Oct. 7, 1955 [Sept. 27, 1954], No. 27801/54. Class 61. In a screwdriver having the handle 11 recessed to receive a set of feeler gauges, and in which neon glow element 22 is mounted in the handle in contact with the screwdriver blade 21, the handle is either made of transparent material or there is provided an observation window. As shown the handle has an axial bore 16 which is threaded to receive a threaded plug 18 to which the feeler gauges 15 are pivoted at 14. A neon glow element 22 located in a bore 20, is held in contact with the screw driver blade 21 by a spring 23. The spring abuts against a threaded plug 24 which shuts off the bores 16, 20 from each other. In a modification the handle has a longitudinal slotted recess extending transversely into the handle the feelers being mounted on a transverse pivot within the recess. The recess may or may not be continued into the top of the handle.
Patent GB-362040-A (GB)
Title: Improvements in or relating to the manufacture of semi-coke and to apparatus therefor
IPC: C10B47/10
Filed: 1930-09-17
Abstract: 362,040. Coke ovens. TOTZEK, F., 59, Salkenbergsweg, Stoppenberg, and KOPPERS AKT.-GES., H., 29, Moltkestrasse, both in Essen, Germany. Sept. 17, 1930, No. 27804. Convention date, Nov. 29, 1929. [Class 55 (i).] In the production of semi-coke, the wall between the coal charge and the heating flues is a composite one, the portion next the combustion chamber being silica, and that next the charge being refractory material having a clay binding, and the thickness of the wall produces a temperature gradient resulting in the formation of semi-coke. A suitable thickness for the wall is 180 mm., and the temperature of the walls of the heating flues is 1100‹ C. while that of the coking chamber is 700‹ C. The walls 13 next the flue spaces 11 are of lime-bound silica bricks and the walls 12 next the ovens 10 are of fireclay bricks with a clay binding.
Patent GB-519587-A (GB)
Title: Device for stabilizing indicating instruments suspended by springs
IPC: B64D45/00
Filed: 1938-09-23
Abstract: 519,587. Indicating-apparatus. CRESCIMANNO, S., [nee BRAIBANT, M.]. Sept. 23, 1938, No. 27821. Convention date, Sept. 27, 1937. [Class 106 (iv)] [Also in Groups XX and XXXII]  Indicating instruments supported in gimbals mounted on a ring itself supported by springs have suspended from the ring or from the instrument by springs an additional mass to damp vibrations one end of such spring being rigidly secured to the ring or instrument while the other end is connected to the mass by a universal joint or vice versa. The invention is shown applied to a magnetic compass g supported in gimbals h, i, the outer gimbal ring i being connected to a binnacle p by springs not shown. The vibration-damping member l is carried by springs o rigidly secured by bolts m to the outer gimbal ring. i. The damping effect is adjusted by placing annular weights r inside the member l.