baber/WOPTO huggingface dataset:
Patent GB-836555-A (GB)
Title: Improvements relating to the production of net or netlike fabrics by extrusion methods
Inventor: MERCER FRANK BRIAN
IPC: B29C48/05
Filed: 1955-11-09
Abstract: <PICT:0836555/IV (a)/1> <PICT:0836555/IV (a)/2> An extruded net-like fabric of plastic material has net intersections a and strands b which are divisions from the intersections a, the whole fabric being an extruded entity.  The net may have various patterns (Figs. 20 to 25, not shown) and the strands may have various cross-sections (Figs. 9 to 11, not shown).  Lists of suitable plastic material and uses for the fabric are given, e.g. polyesters, polyamides, polyethylene, polyvinyl chloride, copolymers of vinyl chloride with vinylacetate or vinylidene chloride.  A method of making the integral net-like fabric comprises extruding a plastic material through a number of dies located in a pair of members mutually displaceable transversely to the direction of extrusion, through positions in which the dies of each member are out of register and extrude separate strands, to a position in which the dies of each member register and extrude confluent strands forming integral intersections of the net.  The die members may be annular to extrude a tube-like net, arcuate, or rectilinear to extrude a sheet-like net.  Plastic material is fed by a screw 2 through a gauze screen and breaker plate 3a into a feed chamber 3 coupled to an extrusion chamber 5 having a movable inner member 12 and a movable die member 6.  The members 12, 6 have die apertures 14, 10 in slideways 13, 9 respectively which operate in mating adjustable engagement and are actuated by variable-speed motors 18b, 11c and chain drives 18a, 11a.  Differential rotation of the members 6, 12 causes the plastic extruded through the die apertures 10, 14 to form separate strands when the dies are out of register and confluent integral strands when the dies are in register.  The extruded fabric may be tensioned, before setting in a cooling bath 25, to alter the shape of the mesh and may be slit by a knife blade 22 to form a flat sheet.  Various methods of rotation or oscillation of the die members are described to produce various shaped meshes and one die member may be stationary whilst the other rotates or oscillates.  The rotations or oscillations may be "stepwise."  The die apertures may be of various sections to produce different sectioned strands and may be convergent (Fig. 12, not shown).  A series of separate fabrics may be extruded by forming portions of the slideways without die apertures.  The die apertures may be formed in endless steel bands or reciprocal steel plates.  The extruded fabrics may be laminated one upon another or applied as a coating or armouring to one or both sides of plastic or other cloths. Specification 836,556 is referred to.
Patent GB-1507964-A (GB)
Title: Carrier-bound gibberellins
IPC: C08B37/00
Filed: 1976-08-02
Abstract: Gibberellins are reacted in the form of their anhydrides or their derivatives containing amino groups with a carrier. During this process, an amide group is formed. The carrier is preferably a high molecular weight polysaccharide. The resulting carrier-bound gibberellins are suitable for affinity chromatography and investigating the mechanism of action of the gibberellins.
Patent GB-604576-A (GB)
Title: Centrifugal coupling
IPC: F16D43/18
Filed: 1945-11-28
Abstract: 604,576. Centrifugal clutches. WEISSBERG, J. Nov. 28, 1945, No. 32084. [Class 80 (ii)] In a centrifugal clutch the driving and driven shafts are connected to two elements 1, 2, the element 1 being contained within a cylindrical casing 5 of the element 2 and having a diametrical slot 4 which locates the ribs 9 of two segmental shoes 8 restrained against small centrifugal forces by springs 10. The element 1 is substantially centered by a screw 12 and by a coverplate 6 on the element 2.
Patent GB-412841-A (GB)
Title: Gas filled incandescent electric lamp with a tubular bulb
IPC: H01K1/50
Filed: 1933-11-17
Abstract: 412,841. Electric incandescent lamps with residual gases. VEREINIGTE GLUHLAMPEN UND ELECTRICITATS AKT.-GES., Ujpest, Budapest. Nov. 17, 1933, No. 32136. Convention date, Nov. 18, 1932. Drawings to Specification. [Class 39 (ii).] In a gas-filled electric incandescent lamp having a " tubular " bulb, i.e. one in which the length of the bulb is at least three and a half times as great as its maximum diameter, blackening of the parts of the bulb nearest the filament is prevented by using a gas filling at a pressure when cold of more than two atmospheres. The length of the bulb is preferably six times its greatest diameter, and its dimensions are so chosen that the product of the tensile strength of the glass and the minimum thickness of the bulb wall is at least three times the product of the gas pressure and the maximum circumference, all quantities being measured in C.G.S. units. The bulb is of glass of high melting-point or of quartz and well annealed. With higher pressures, above 6 atmospheres, the bulb has an external protective netting of bright nickel or steel wire, which may be provided with a small window through which the useful light passes.
Patent GB-870997-A (GB)
Title: Improvements relating to high-voltage oil circuit-breakers provided with turbulators
Inventor: AMER DONALD FOSTER
IPC: H01H33/75
Filed: 1956-10-22
Abstract: 870,997. Oil-blast switches. REYROLLE & CO. Ltd., A. Oct. 21, 1957 [Oct. 22, 1956], No. 32181/56 Drawings to Specification. Class 38 (5). A high voltage oil circuit-breaker has a turbulator with one or more lateral vents and a number of separate oil-containing cavities, some of the cavities being disposed so that their mouths are obliquely directed at an associated vent inlet from positions offset on either side thereof. When an arc is struck the converging arc-produced blasts reduce any tendency for the arc to lodge in a sheltered position to one side of the vent or vents. The construction described is that of Specification 870,998.
Patent GB-495147-A (GB)
Title: Improvements in or relating to electro-acoustic devices for transmitting or reproducing sound
IPC: H04R9/00
Filed: 1937-11-23
Abstract: 495,147. Sound-magnifying applliances. INKSTER, S. H. Nov. 23, 1937, No. 32195. [Class 13] [Also in Group XXXIX] In a loud-speaker a diaphragm a secured at its centre communicates with the external air by means of a sound conduit formed by a tube i surrounded by a chamber m into which a liquid may be introduced. The chamber m which is formed between walls j, k and is closed by rings l, l<1>, has an aperture t closed by a plug t<1>. The tube i may be tapered or flared and the walls j, k may be similarly shaped or they may have a shape different from that of the tube i.
Patent GB-287247-A (GB)
Title: Improvements in or relating to partition walls
IPC: E04H1/12
Filed: 1926-12-20
Abstract: 287,247. Corby, S. F., and Wasp, J. Dec. 20, 1926. Slabs for partitions.- Walls. suitable as partitions for cubicles for water closets, are made of single slabs 1 of concrete, artificial stone, or wood composition, and are secured in recesses in the wall and floor by webs 2, 6, which may be integral with the slabs or be formed as separate standards. The front web 6 projects laterally to form door jambs and is formed at the base as a foot 5. The angles at the junctions of slabs and webs are rounded. The separate standards and slabs are interlocked by tongues and grooves, and secured together at the bottom by dowels and at the top by bolts. A grooved head rail 9, Fig. 8, is provided over the webs 6, and distance pieces 10 are located in the groove.
Patent GB-193534-A (GB)
Title: A new or improved emergency braking system for motor road vehicles
IPC: B60R19/02
Filed: 1921-12-01
Abstract: 193,534. Aves, H. Dec. 1, 1921. Wheel-guards, obstruction-removers, and safety appliances.-The brakes of a motor vehicle are applied when bars arranged around the vehicle contact with an obstruction. The side bars 4, which may be formed as footboards, and may include wheel-guards 6, are connected by levers 5 to rods 2 which are slidably mounted on the chassis. The rods 2 carrv a buffer 3 at the front of the vehicle and a buffer 7 at the rear connected to them by a linkage 8. The rods 2 are coupled together by levers 26, and one of the rods co-operates with a spring-actuated trip lever 12 by which the brakes are applied and the clutch is disengaged. The lever 12 is secured to a sleeve 11 which surrounds the brake and clutch rock-shaft. Slots are arranged in the sleeve in such a manner that the normal use of the brake and clutch pedals is not interfered with, but when the lever 12 is tripped, the sleeve 11 is rocked and the edges of the slots engage the brake and clutch pedal and actuate them. The slots in the sleeve may be filled with adjustable collars or plates. The trip mechanism comprises a spring-pressed plunger 15 on the rod 2 adapted to engage the bevelled end 13 of the lever 12 and to retain the lever 12 in an inoperative position as shown in Fig. 2 until the rod 2 is displaced. When released, the lever 12 is pulled down by a tension spring 17 connected to it by the members 16, 18. A rack-and-pinion gear 21, 22, 23 is provided on the dash-board for returning the lever 12 to its normal position. The rods actuating the trip mechanism may also be moved by a pedal 24 en the conductor's platform in the case of a passenger vehicle, or by a cable 27 operated by the driver. The vehicle may also be stopped by pulling cn a transverse bar 9 intended for the use of police or other authorities. A lostmotion connection may be interposed between the cross-bar 3 at the front and the rods 2 to allow some movement before the rods are actuated. According to the Provisional Specification the trip lever 12 may be weighted instead of spring-actuated.
Patent GB-1304426-A (GB)
IPC: C01C3/11
Filed: 1970-07-02
Abstract: 1304426 Ammonium gold cyanide ENGELHARD MINERALS & CHEMICALS CORP 2 July 1970 [3 July 1969] 32278/70 Heading C1A Ammonium gold cyanide is prepared by passing an aqueous solution of an alkali metal gold cyanide over a cation exchange resin in ammonium form. The cation exchange resin in ammonium form may be obtained by passing an aqueous solution of an ammonium salt, for example ammonium sulphamate, phosphate or sulphate, over the hydrogen form of the resin. The cation exchange resin may be a sulphonated resin, e.g. a copolymer of styrene and divinylbenzene. The alkali metal cyanide may be potassium gold cyanide or sodium gold cyanide. Alkali metal ions may be desorbed from the resin by acid, e.g. sulphuric acid, to give the hydrogen form of the resin again. In an example, crystalline NH 4 Au(CN) 2  is made by evaporating a 9% aqueous solution of the cyanide eluted from a resin column, the feed solution being 15% K Au(CN) 2 .
Patent GB-520522-A (GB)
Title: Improvements in or relating to closures for conserve cans and the like
IPC: B65D47/12
Filed: 1938-11-07
Abstract: 520,522. Conserve cans etc.; stoppers. SCHMIDT, C. W. R. Nov. 7, 1938, No. 32292. Convention date, Nov. 6, 1937. [Classes 66 and 125 (iii)] The end of a can for condensed milk &c. is formed with a single opening or with a pair of openings c, d, Fig. 1, which are closed by elastically formed press-studs f which, in the case of two openings, may be mounted on a rigid strip e which may then be prized up when it is desired to open the can. The studs are initially sealed in the openings by solder g but may be replaced after breaking the seal to afford a temporary re-closure. Specifications 202,240, [CLass 66], and 352,436, are referred to. The Specification as open to inspection under Sect 91 describes also studs mounted on a corrugated metal strip provided with a pull-ring, Fig. 5 (Cancelled), formed with lever ends adapted to bear on the can end when the the ring is raised, a stud-carrying strip, Fig. 7, (Cancelled)', attached to the end by an integral hinge, a strip, Fig. 8 (Cancelled) provided-with a pivoted wire loop adapted when turned outwardly to fulcrum on the rim of the can, and a pair of studs, Fig. 10 (Cancelled), connected together by a bent wire.' This subject-matter does not appear in the Specification as accepted.
Patent GB-220272-A (GB)
Title: Improvements in and relating to fluid pressure braking apparatus
IPC: B61H13/30
Filed: 1923-12-27
Abstract: 220,272. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Redford, J. E.). Aug. 6, 1923, [Convention date]. Piston-rods. - In fluid-pressure braking apparatus of the kind having clutch mechanism interposed between the brakecylinder piston and the piston push-rod connected to the brake rigging, and adapted automatically to connect the pushrod to the piston when fluid under pressure is supplied to the latter, the clutch mechanism comprises nuts 6, 7 mounted to rotate in opposite directions in helical grooves 8, 9 in th push-rod 4, which is adapted to slide in the sleeve 3 connected to the piston 2. In the release position of the piston, Fig. 2, the nut 6 is spaced from the nut 7 by the engagement of pins 14 with the cylinder head 5, so that, the nuts being free to rotate the rod 4 can slide freely in the sleeve 3. When, however, fluid under pressure is supplied to the cylinder to move the piston and its sleeve to the right, as shown in Fig. 1, a spring 16 causes the nuts to engage, so that teeth 10 prevent their rotation, and the rod 4 is clutched to the sleeve through the nuts and the housing 5.
Patent GB-651386-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/94
Filed: 1948-12-14
Abstract: 651,386. Cathode-ray tubes. CINEMATELEVISION, Ltd., and BUCHANAN, W. H. Dec. 14, 1948, No. 32328. [Class 39 (i)] To prevent the defocusing of the scanning beams of high-vacuum cathode-ray tubes, especially those used in television reception, due to the varying beam current affecting the ionization of the residual gases within the tube, auxiliary measure provided for producing ionization of the tube gases. The anode 4 of the scanning beam 2 has an annular flange 5 carrying an auxiliary electron gun comprising a ring-shaped electron source 7, an annular beam concentrating electrode 8, and an accelerating electrode 9. The annular auxiliary beam 6 is composed of low velocity electrons which are caused to describe helical paths by the focusing field of the scanning beam, whereby the gases are ionized. The auxiliary beam 6 may ionize such a large proportion of the gas molecules that any additional ionization by the scanning beam 2 is of negligible -effect, or, alternatively, the beam 6 may be modulated in the opposite sense to that of the scanning beam 2 by applying a potential to the concentrating or accelerating electrodes 8, 9, whereby the ionization is maintained substantially constant. Numerical values of voltages which can be applied to the tube electrodes are given in the Specification.
Patent GB-794481-A (GB)
Title: Improvements in rotary and percussive rock drills
Inventor: HAUSHERR RUDOLF
IPC: F04B19/24
Filed: 1954-08-27
Abstract: 794,481. Percussive tools. HAUSHERR, R., HAUSHERR, G. and HAUSHERR, H., [trading as HAUSHERR UND ERBEN KOMMGES., R.]. Aug. 27, 1954, No. 32359/57. Divided out of 794,480. Class 124. A rotary percussive drill comprises an impacting device comprising two pressure-medium actuated pistons disposed in coaxial cylinders, one piston executing an impacting stroke while the other executes a return stroke. As shown, the impacting device comprises a first piston 48 in a cylinder 47 which strikes the end of a rotary drill steel 42 and a second piston 45, surrounding the steel and operating in a cylinder 46, strikes a shoulder 43 on the steel. A disc valve 59 distributes compressed air in such manner that when the piston 48 moves to strike the steel, the piston 45 makes a return stroke. The steel may be rotated in any known manner e.g. by an electric motor.
Patent GB-1478361-A (GB)
Title: Process and apparatus for producing patterned plastics  materials
IPC: B29C44/30
Filed: 1974-07-22
Abstract: 1478361 Rolling plastics paste PEGULAN-WERKE AG 22 July 1974 [30 Aug 1973] 32375/74 Heading B5A A textured plastics sheet is produced by applying a layer of a plastics paste having a viscosity of 5000-50,000 cp. to a continuously moving carrier and contacting it with a smoothsurfaced roller and the textured paste produced is then gelled. The paste may be polyvinyl chloride, and may be foamable. It may also contain a reinforcing fleece. As shown, a carrier web 1, e.g. of paper is coated with paste 3 by an applicator 2 and reinforcement 5, e.g. a fleece layer is supplied from roller 4 onto the wet paste layer by roll 6 and the laminated material is then gelled in duct 7. After passing over guide rolls 8, more paste 10 is applied by means 9 and contacted with a smooth-surfaced hydraulically driven rise and fall roller 11 which forms a pattern thereon. The web 1 is supported immediately before and after roller 11 by rolls 12. The layer is gelled in duct 13. The laminate 14 and web 1 are then separately wound onto rollers 15, 16.
Patent GB-287621-A (GB)
Title: Improvements in and relating to wireless apparatus
IPC: H04B1/16
Filed: 1926-12-22
Abstract: 287,621. Nutter, C. H. P., and Hurd, J. E. A. Dec. 22, 1926. Thermionic amplifiers dnd detectors.-High-tension and low-tension current are supplied to thermionic valve receivers from alternating- current mains through gas-containing filamentless rectifiers. The divided secondary coil of the supply transformer a is connected for fullwave rectification to a pair of duplex rectifiers b, arranged in parallel as shown, or in series, Fig. 2 (not shown); and the rectified output current is smoothed by series choke coils d, e and shunt condensers c. One or more of the choke coils d may be tuned by a condenser d<1>, preferably to double the supply frequency. Hightension current is taken for the several valves from tappings on a potentiometer f, each tapping being connected to the negative lead by a condenser p. The filaments are connected in series with the supply, the series circuit including a resistance k for giving suitable bias to the valve grids, a resistance l at the opposite end of the filaments, and the field coil q of a moving-coil loud-speaker q<1>. The coil q may be shunted by a buffer resistance r. One or more of the filaments may be shunted by rheostats. The valve circuit shown comprises an anode-bend detector valve g with resistance coupling to two lowfrequency amplifiers h, j. A reaction coil g<4> is connected in series with a variable condenser g' between plate and filament of the detector valve. A choke coil is inserted in the plate circuit of the last valve, and the moving coil s of the loudspeaker has a capacity connection to the plate of that valve.
Patent GB-1478266-A (GB)
Title: Circuit for detecting relative angular displacement of a steering wheel
IPC: G01D5/244
Filed: 1975-08-04
Abstract: 1478266 Monitoring movements of steering wheel NISSAN MOTOR CO Ltd 4 Aug 1975 [2 Aug 1974] 32434/75 Heading G1N A circuit for detecting movement of a vehicle steering wheel comprises a first means, arranged in use such that it is sensitive to the direction of movement of the steering wheel and arranged to produce a series of first signals when the steering wheel is turned continuously in one direction, one first signal representing a predetermined increment of movement in the one direction, and a series of second signals when the steering wheel is turned continuously in the second direction, one second signal representing a predetermined increment of movement in the second direction. A first integration circuit produces, in use, a third signal of which the magnitude increases with time in the presence of successive first signals and decreases with time in the presence of successive second signals unless the initial value in the circuit is zero. A second integration circuit produces, in use, a fourth signal of which the magnitude decreases with time in the presence of successive first signals, unless the initial value in the circuit is zero, and increases with time in the presence of successive second signals. Means are also provided for producing an output signal when the third signal exceeds a first predetermined value or when the fourth signal exceeds a second predetermined value. As shown the first means includes a positionto-voltage transducer 20 the output of which is connected to voltage subtractors 21, 22. The output of each subtract or 21, 22 is compared in a respective comparator 23, 24 with a constant reference voltage provided by a source 31. If the output is sufficiently above the reference voltage, e.g. by 1 volt, a first signal or a second signal, depending upon which subtractor-comparator is being considered, is produced. A feedback loop including an up-down counter 30 and a digital-toanalog converter 29 is connected to both subtractors so as to cancel the first or second signal on production. The production of a first or second signal triggers a respective up-down counter 25, 26 which comprise the first and second integration circuits. The first and second predetermined values are set in respective logic gates 27, 28. A feedback circuit 35, 36 from each logic gate zeros the associated counter when the value is reached. The detecting circuit is described as being used in a vehicle warning device. A counter, driven by timing pulses from the vehicle distributer, increases its count until an output signal from the detecting circuit clears the same. If no output signals are forthcoming an alarm is triggered Fig. 1 (not shown).
Patent GB-1479381-A (GB)
Title: Hydroxy propylene polynitrilo polymethylene phosphonic acids
IPC: C07F9/38
Filed: 1975-08-04
Abstract: 1479381 Hydroxy propylene polynitrilo polymethylene phosphonic acids; 1,3-diamino-2- hydroxypropane PHILIP A HUNT CHEMICAL CORP 4 Aug 1975 [30 Sept 1974] 32478/75 Headings C2P and C2C [Also in Division C1] Polymethylene phosphonic acids have the formula  where n = 1-5 together with their alkali metal, ammonia, amino and hydroxyalkylamine salts. The compounds are prepared by reacting PCl 3  with the appropriate amine/formaldehyde condensation product followed by hydrolysis. Preferred compounds are those in which n = 1-4 and also compositions containing compounds in which n= 1-3. The compounds are used to chelate metal ions having a valency of 2 or more, particularly to inhibit the formation of calcium sulphate precipitate in aqueous systems. 1,3 - Diamino - 2 - hydroxypropane is prepared from ammonium hydroxide and epichlorhydrin followed by distillation. The crude reaction product is a mixture of amines of formula where n = 1-5.
Patent GB-265745-A (GB)
Title: Improvements relating to vapour condensers
IPC: F28B1/02
Filed: 1925-12-23
Abstract: 265,745. Guy, H. L., and Metropolitan- Vickers Electrical Co., Ltd. Dec. 23, 1925. Surface condensers. - In a condenser having a nest of tubes 6 passing across the steam space from an inlet header 7 to an outlet header 8, and enclosing an air-withdrawal space 10 free from tubes, the cross-sectional area of the space 10 is not less than 10 per cent of the total cross sectional area enclosed by the tube nest. The space 10 contains a large air-removal trunk 11 having openings 20 and serving as a stay for the tube plates. Air is withdrawn through a pipe 9 leading to openings 15 between radial fins 14 surrounding a closed conical casing 13. Water separated by the fins 14 is drained into the condenser through an opening 16. Alternatively the pipes 9 may be attached directly to the tube-plate. Air-cooling tubes may be arranged in the trunk 11. The nest of tubes 6 may have a star-like or serrated cross-section.