baber/WOPTO huggingface dataset:
Patent GB-1034166-A (GB)
Title: Yarn-quenching apparatus
IPC: D01D5/092
Filed: 1964-11-09
Abstract: 1,034,166. Quench apparatus for meltspinning. E. I. DU PONT DE NEMOURS & CO. Nov. 9, 1964 [Nov. 8, 1963], No. 45634/64. Heading B5B. A filament-quenching chimney consists of a length of rectangular cross-section at the end of the chimney adapted to receive freshly-extruded filaments, then an inwardly-tapered length, and finally, a tubular length, the length of rectangular cross-section having front, back and side walls, with openings in the front and back walls for the admission of a quenching medium and outside air, the chimney being imperforate except for said openings and so constructed that when quenching medium and outside air are admitted into the chimney, filaments extruded from a spinneret into the chimney and through a convergence guide beyond the bottom of the chimney are quenched without substantial breakage or fusion. The top of the opening in the front wall may be at the level at which filaments enter the chimney, and a vacuum fitting may be provided, traversing this opening. In one embodiment (Fig. 2, not shown), a chimney has a rectangular length 10 bounded by back wall 16, top wall 18, side walls 20 and a front wall which includes hinged door 22 and lower perforated section 24, a tapered length 12 and a tubular length 14. An opening in the back wall, located below imperforate section 26, is fitted with diffusion screen 28 through which quenching medium is discharged from plenum chamber 30. Filaments from spinneret 32 advance to convergence guide 34. In operation, a gaseous quenching medium is discharged transversely through screen 28 at a rate of at least 140 cu. ft./min. at 23-50‹ C. Due to the pumping action of the filaments, the flow is then directed downwardly and air is drawn in through the opening above door 22. Air containing vaporized monomer is withdrawn through vacuum fitting 36 which has a slit traversing the opening above door 22 at spinneret level. Depending upon the rate of flow of quenching medium through screen 28, air is either drawn in or expelled through perforated section 24, which thus acts as a pressure equalizer. In an example, filaments extruded from a melt of polyhexamethylene adipamide (80%) and polyhexamethylene isophthalamide are quenched by blowing air at 35‹ C. at a rate of 200 cu. ft./min. through screen 28, hot stretched and wound. The air temperature at the approximate centre of the chimney adjacent the filaments is 184‹ C. just below the spinneret, 44‹ C. at the top of the access door 22 and 58‹ C. from the bottom of the access door to the bottom of the chimney.
Patent GB-1450254-A (GB)
Title: Damped air valves
IPC: F16F9/02
Filed: 1974-10-23
Abstract: 1450254 Rotary dampers LEAR SIEGLER Inc 23 Oct 1974 [29 Oct 1973 (2)] 45889/74 Heading F2S [Also in Division B7] In an air suspension levelling valve including an actuator shaft 54 carrying a paddle 52 which actuates valves for controlling the volume of air in an air spring 10 disposed between a vehicle frame 12 and axle 14, a damping vane 80 secured to the shaft 54 is located in a fluid-filled chamber 36 which has portions disposed both above and below the shaft so that the levelling valve can be used one way up on one side of the vehicle and the other way up on the other with no alteration in damping performance. A reservoir cavity 88 communicates through a port 86 with each portion of the damping chamber 36 so that air can escape from the chamber regardless of the orientation of the valve. The vane 80 is dimensioned so that damping fluid can flow only slowly past the vane, by-pass conduits 82, 84 and flap valves 90, 92 being arranged so that movement of the vane away from the central position is damped but return movement is undamped until the vane approaches the central position and obstructs the ports 86. The flap valves 90, 92 are part of a thin metal strip bent into U-shape.
Patent GB-1359612-A (GB)
Title: Pressure reducing valves
IPC: G05D16/06
Filed: 1972-02-15
Abstract: 1359612 Valves RELF RESEARCH Ltd 15 Feb 1972 [19 Feb 1971] 45969/72 Divided out of 1359611 Heading F2V The description is similar to that of Specification 1,359,611, but the claims relate to the connection of the two body parts.
Patent GB-466694-A (GB)
Abstract: 466,694. Ignition systems. NAGEL, O. Aug. 14, 1936, No. 22440. Convention date, Dec. 14, 1935. Addition to 464,179. [Class 7 (iv)] In ignition arrangements in which a continuously operative igniter is lodged in a subsidiary combustion chamber from which the flame of combustion reaches the main combustion space through a restricted orifice, this orifice k1 may open obliquely into the main space. Alternating or direct current may be supplied by an engine-driven generator, either with or without the interposition of an induction coil; and the igniter may be a sparking-plug, or of the incandescent type.
Patent GB-1131820-A (GB)
Title: Equipment for use in precision casting using the lost-wax moulding process
Inventor: VERBITSKY VIKTOR DMITRIEVICH
IPC: B22C7/02
Filed: 1966-10-19
Abstract: 1,131,820. Lost-wax process; locking device. NAUCHNO - ISSLEDOVATELSKY INSTITUT AVTOMOBILNOIPROMYSHLENNOSTI. 19 Oct., 1966, No. 46743/66. Heading B5A. The patterns 2, Fig. 1, and ceramic 3 cast thereon are held together on a mounting rod 1 for use in a lost-wax process by a locking device 4, comprising a cap member 5, Fig. 4, of non- fusible material, and a core member 6 the cap being removably attachable over the core and having on its outer surface, a screw thread 7 for unscrewing the pattern block from the cast ceramic. A wider portion of the core 6 has a screw groove with a locking recess 11 engaging with a pin 8 on the inside of the cap. The narrower portion of the core 6 has an L-shaped groove 12 engaging with a pin 13 on the inside of the hollow tubular mounting rod 1, the core member being biased by a spring 15 between a top plate of the core and bushing 14 of the mounting rod. The cap is screwed on to the core so that pin 8 engages in recess 11; further rotation removes pin 13 from the horizontal part of groove 12, the core then springing up due to spring 15, locking the patterns 2 together so that ceramic can be cast thereover and the mounting rod and cap can be removed therefrom by unscrewing after melting the pattern material.
Patent GB-1027449-A (GB)
Title: Blood pressure monitoring apparatus
IPC: A61B5/023
Filed: 1963-11-27
Abstract: 1,027,449. Measuring blood pressure. S. B. LONDON. Nov. 27, 1963 [Nov. 27, 1962], No. 46769/63. Heading A5K. A blood pressure measuring device comprises an inflatable cuff communicating with a pump 12 for inflation of the cuff, a bleeder valve 28 for gradual deflation of the cuff, an open mercury tube 52 for measuring the pressure in the cuff and an electric circuit, which includes the mercury in the tube, contacts C1-C51 spaced along the tube and a display panel 40. The device operates in response to Korotkov sounds received by a microphone 36 (Fig. 1 not shown), located in use adjacent the cuff to energize the display panel to indicate the pressures in the cuff at which the Korotkov sounds are produced. The cuff is inflated to a selected maximum pressure determined by a six-position switch 20 (Fig. 4). Each contact C1-C51 is in a control circuit which is closed by the mercury as it rises. The cuff is rapidly deflated through a solenoid valve 30 when the pressure in it has fallen below the estimated diastolic pressure. Each position of the selection switch 20 is connected to a selected contact on the tube 52. When the switch is set it interconnects the selected contact and the top contact C51 on the tube, so that, as the mercury rises in the tube to the selected contact, a relay K1 associated with the top contact is energized. Energization of the relay K1 operates poles I-III which respectively cut out the pump, hold the relay energized until the mercury falls to the lowest contact C1 and supply direct current through the mercury column and the contacts to relays K2-K26,K29 and K30. During inflation of the cuff, a relay K28 is energized to cause extinction of lamps 42 on the display panel 40. The microphone 36 is connected to an amplifier 38, the output of which is changed to a direct current signal in a relay circuit. Energization of the relay K29 connects the amplifier relay circuit to the contacts of the relay K2 associated with the tube contact C5O. If the mercury is at or above the top contact C50, the relay K2 is energized to connect the amplifier circuit to the lamp 42 appropriate to the mercury level. As the mercury falls, the relays K2-K26 are successively de-energized, their contacts in changing over connecting the amplifier relay circuit successively to the relay appropriate to the top-most tube contact contacted by the mercury, the lamp associated with each relay only being illuminated if a Korotkov sound is produced at the pressure indicated by the mercury. In each lamp circuit is a self-holding relay which ensures that a lamp, once illuminated, will not be extinguished until the mercury has fallen to the bottom of the tube. The highest and lowest lamps illuminated during the deflation of the cuff indicate the systolic and diastolic pressures respectively. The pump 12 is connected in a circuit receiving an alternating current mains supply, the circuit also including transformers for obtaining the necessary direct current supply for operating the pressure-responsive parts of the device.
Patent GB-1198682-A (GB)
Title: Apparatus for Manufacturing Leather Heel Veneers.
Inventor: MUDGWAY JAMES BRACKENRIDGE
IPC: A43D95/26
Filed: 1967-10-13
Abstract: 1,198,682. Slicing leather logs. J. B. MUDGWAY. 13 Oct.. 1967 [17 Oct., 1966], No. 46835/67. Heading B4B. ' Apparatus for manufacturing leather heel veneers comprises a log holder 2 having a curved plate 9 to which is clamped a laminated leather log 8 from which slices are cut by means of a knife 7 fastened to a saddle 5 movable in guides 6 in a carriage 3 which is movable in guides (4), Fig. 3 (not shown) in a base 1. The saddle is reciprocable transversely by a lever 22 having a slot 27, and a pin 21, the latter being adjustably mounted on a wheel 20 which is rotated. The carriage is advanced, after a cut has been made, by means of a screw threaded shaft 28 on which is mounted a ratchet wheel 29. This is engaged by a spring-loaded pawl 30 held in a carrier 31 which is rotatbly mounted on the shaft 28 and has an arcuate movement imparted thereto by means of a pawl carrier lever 32 and a pivotally-mounted lever 33. The lever 33 is provided with an arm 35 periodically operated by the rotatable pin 21. The lever 33 is held by a spring 36 against an adjustable back stop 37 the position of which determines the thickness of the veneers produced. The shaft 28 may be rotated manually to withdraw the carriage to its starting position.
Patent GB-1451786-A (GB)
Title: Method of manufacturing a contact body
IPC: C03C25/10
Filed: 1973-10-09
Abstract: 1451786 Gas/liquid contact body CARL MUNTERS AB 9 Oct 1973 [19 Oct 1972] 46981/73 Heading B1R A contact body for gas and liquid is obtained by a process comprising securing a plurality of sheets of fibrous material together to form a body, in a manner such that passages extend between adjacent sheets of the body and from edge to edge of the body, and providing the sheets, either before or after they are secured together with a thin coating of an impregnating agent which imparts wet strength and simultaneously water-repellant properties to the sheets, and incorporating in the coating water-insoluble powder particles that project partially above the surface of the coating to form capillary recesses between the particles, whereby when a liquid engages the coated sheets, it is spread immediately into a continuous film over the fibres and interspaces between the fibres. The sheets may be of mineral wool, or of glass, vegetable animal or asbestos fibres or other inorganic fibre material or an organic fibre material such as cellulose fibres. Preferably the sheets are at least partially corrugated. The impregnating agent may be a plastics material such as a thermoplastic, e.g. synthetic rubber or a thermosetting material such as a melamine or phenol resin. Suitable powder materials are siliconecontaining materials such as silica gel, molecular sieves and kieselguhr.
Patent GB-1065591-A (GB)
Title: Improvements in or relating to sound-deadening material
Inventor: BRAMLEY ALBERT
IPC: B60N3/04
Filed: 1962-12-13
Abstract: 1,065,591. Non - conducting coverings. BOSTIK Ltd. Dec. 11, 1963 [Dec. 13, 1962], No. 47056/62. Heading F2X. The intimately mixed ingredients of a sounddeadening sheet material include bitumen and a filler, e.g. whiting, ground limestone, silica, or barytes, or a mixture thereof, possibly with a small proportion of mica, and one side of the sheet has a regular pattern, e.g. of dots or lines, of adhesive thereon. The adhesive is a rubber latex and is applied by an intaglio roller or silk screen to cover some 25% of the surface with a weight distribution of adhesive of 1-2 grams per square foot. In the manufacture of motor body metal panels, a suitably shaped sheet of the sound-deadening material is laid on the upturned inside face of the panel, which is then passed through an oven at 150‹ C. to cause the sheet to assume the contour of the panel and to bond the sheet and panel together.
Patent GB-1505610-A (GB)
Title: Process for preparing 3,4-dicyano-1,2,5-thiadiazole
IPC: C07D285/10
Filed: 1976-11-12
Abstract: 1505610 3,4 - Dicyano - 1,2,5 - thiadiazole; potassium 1,2,5-thiadiazole-3,4-dicarboxylic acid MONTEDISON SpA 12 Nov 1976 [18 Nov 1975] 47300/76 Heading C2C 3,4-Dicyano-1,2,5-thiadiazole is obtained by reacting diaminomaleonitrile with thionyl chloride in a molar ratio of thionyl chloride to diaminomaleonitrile of from 2 : 1 to 10 : 1 at a temperature of from 40‹ C. up to the boiling point of thionyl chloride. The compound may be converted with or without isolation into the monopotassium salt of 1,2,5-thiadiazole-3,4-dicarboxylic acid.
Patent GB-1122640-A (GB)
Title: Printing machines employing variable line-spacing means
IPC: B41J19/96
Filed: 1965-11-09
Abstract: 1,122,640. Typewriters. INTERNATIONAL BUSINESS MACHINES CORP. 9 Nov., 1965 [29 Dec., 1964], No. 47372/65. Heading B6F. [Also in Division F2] Variable line-spacing. The platen 3 of a typewriter may be linespaced by a plurality of different increments, as shown-none or five to twenty points, by a transmission ratio converter having two. input ratchet wheels 26, 27 each of which has a constant ratio with respect to the platen and of which each is arranged to be driven, during each line-spacing cycle, through one of a plurality of different increments, one of which can be zero. The ratchets 26, 27 are driven by pawls 23, 24 on a bail 25 operated by a link 50 from a cyclic power drive 11, 12 when the line-spacing key 13 is depressed. The pawls 23, 24 rotate the ratchets an amount determined by shielding cams (19, 20), Fig. 1 (not shown), set by a control knob 18. Rotation of the ratchet 26 rotates a sun gear 44 which drives a planet gear 39 on a disc 36 connected to the platen shaft. Rotation of the ratchet 27 rotates an internal toothed gear 43 which drives a second planet gear 41 on a pin 40 on a further disc 37. A C-spring 55 is provided to exert a predetermined force on planet gears 39, 41 via studs 53, 54 so the gears snugly engage the gear 43 eliminating backlash and compensating for wear. In the embodiment shown rotation of the ratchet 26 by one tooth results in a fifth-of-a-tooth rotation of the platen while a one tooth rotation of ratchet 27 results in four-fifths-of-a-tooth. Since each ratchet can be advanced one to four teeth the platen can be advanced in any of sixteen different line spaces between one tooth and four teeth. A zero linespace can be arranged by suitable rotation of the cams 19, 20 by the knob 18.
Patent GB-1079568-A (GB)
Title: Improvements relating to the manufacture of semi-conductor devices
Inventor: SCOTT WILLIAM JOSEPH
IPC: H01L23/29
Filed: 1964-11-23
Abstract: A process for introducing a conductivity or conductivity type modifying impurity into one or more surface regions of a semi-conductor body and applying an ohmic contact to another surface region makes use of a deposited pre-formed mass or masses of refractory insulant to separate the regions, the insulant serving as a masking layer during the process and remaining as a junction-protecting layer in the device made by the process.  The insulant is preferably a glass having a coefficient of expansion substantially the same as the semi-conductor and a softening point at a temperature not much below and preferably above the temperature to which the semi-conductor is heated during the process.  For a silicon semi-conductor such a glass is: 80.6% (by weight) SiO2, 4.14% Na2O, 2.2% Al2O3, 12.6% B2O3, 0.1% CaO, 0.05% MgO.  The glass may be attached to the previously oxidized semi-conductor surface. Alternatively, the insulant may be a non-vitreous ceramic, preferably with a surface glaze.  For making a single diode rectifier (Figs. 1 and 2, not shown) the insulant is laid down on one surface of a semi-conductor wafer as a closed ring, the diffusion or alloying of impurity taking place on the surface either inside or outside this ring and the contacting by an ohmic electrode on the other of these two surface regions.  To make a controlled rectifier (Fig. 5, not shown) a second ring and second diffusion or alloying within it is employed.  To make a plurality of diodes the insulant takes the form of a sheet with many holes: this is attached to one face of a semi-conductor wafer, impurity is alloyed or diffused through each hole and an ohmic electrode applied to the other face of the wafer. The whole assembly is then broken into separate diodes (Figs. 3 and 4, not shown).
Patent GB-1518568-A (GB)
Title: Process for the preparation of concentrated suspensions of pesticides
IPC: A01N43/707
Filed: 1976-11-16
Abstract: The formation of concentrated, stable suspensions of pesticides, whose solubility in water is not more than 1.5%, is achieved in a simple manner by metering a melt of pesticidal active substance and an addition of an emulsifier or an acid which is based on an anionic emulsifier into an aqueous phase with vigorous stirring but with the exclusion of air, the aqueous phase having a temperature of below the point of solidification of the melt and, if an emulsifier acid is present in the melt, furthermore containing the corresponding amount of a base which together with the acid gives the finished emulsifier. The melt can additionally contain formulation auxiliaries, and the aqueous phase can additionally contain soluble pesticides and/or formulation auxiliaries.
Patent GB-1091480-A (GB)
Title: A process for the production of copolymer latices
Inventor: MAYER-MADER RUDOLF
IPC: C08F2/22
Filed: 1966-10-25
Abstract: A monomer mixture comprising 40 to 70 parts by weight of a conjugated diene, 0.5 to 5 parts of a bicycloheptene derivative containing a carboxyl group and 50 to 15 parts of another monoethylenically unsaturated compound is used for the production of copolymer latices. The preferred dienes are 1,3-butadiene, isoprene and chloroprene and suitable comonomers include (meth)acrylonitrile, methylene glutarodinitrile, ethyl acrylate, n-butyl acrylate, vinyl acetate and styrene.  The polymerization may be carried out in aqueous emulsion using conventional emulsifiers, catalysts, regulators and terminators.  The latices are used, in conjunction with cross-linking and vulcanizing agents, as binders for non-woven fabrics (see Division D1).  In the examples, copolymers of butadiene and bicyclo-[2,2,1]-hept-5-ene-2,3-dicarboxylic acid with acrylonitrile and/or methacrylonitrile, methylene glutarodinitrile, styrene, ethyl acrylate or n-butyl acrylate are produced in an aqueous emulsion containing sodium alkyl sulphonates, a stearyl alcohol-ethylene oxide condensate, an alkyl naphthalene sulphonic acid - formaldehyde condensate, sodium sulphoxylate, t-butyl hydroperoxide, FeSO4, tetrasodium pyrophosphate and t-dodecyl mercaptan, the ingredients being added stepwise and the polymerization being terminated using sodium dithionite, a steary alcohol-ethylene oxide condensate and the sodium salt of ethylene diamine tetraacetic acid.  The latices are stabilized and the latex comprising the acrylonitrile terpolymer is mixed with ZnO, melamine resin and NH4Cl and cured.ALSO:Non-woven fabrics or fibrous webs are consolidated by a binder consisting of a latex of a copolymer produced from 40 to 70 parts by weight of a conjugated diene, 0.5 to 5 parts of a bicycloheptene derivative containing a carboxyl group and 50 to 15 parts of another monoethylenically unsaturated compound.  The binder may also contain a cross-linking agent and catalyst and a vulcanising agent.  The production of suitable latices is described (see Group C3).  In an example, non-woven cotton fabric is impregnated with a binder comprising a latex of a terpolymer of butadiene, bicyclo[2,2,1]-hept-5-en-2,3-dicarboxylic acid and acrylonitrile, ZnO, a melamine resin and NH4Cl.  The fabric is then squeezed, dried, heated to cross-link the polymer, washed and dried again, calendered and subjected to drycleaning or boiling.
Patent GB-1206157-A (GB)
Title: Magnetic switch devices
Inventor: WOLFORD BYRON FREDERICK
IPC: H01H36/00
Filed: 1967-10-20
Abstract: 1,206,157. Movable magnet switches. PROXIMITY CONTROLS Inc. 20 Oct., 1967, No. 47956/67. Heading H1N. A magnetic switch which can be used to indicate the level of particles in bins, hoppers or grain elevators or explosive atmospheres has a diaphragm 72 which acts on a spring 56 having at a free end a permanent magnet 58 which when it moves toward a non-magnetic wall 16 repels a second permanent magnet 52 on a lever 46 which controls a switch mechanism 28 in a casing 30. The diaphragm which may be made of rubber is backed by a non-magnetic metal disc 74 whose movement is limited by a stop flange 64 of the sealed switch casing 14. The spring 56 is flexed away from the wall 16 by a screw 60 and the lever 46 is biased by a compression spring 50. The casing 30 encloses a microswitch having a plunger 44 and contacts 32, 33.
Patent GB-1520842-A (GB)
Title: Method and apparatus for welding a marginal edge of a cover sheet onto a base sheet
IPC: B29C63/04
Filed: 1976-05-10
Abstract: 1520842 Folding edges of non-metallic sheet material TOMITA SANGYO KK 10 May 1976 48131/77 Divided out of 1520841 Heading B5K The subject matter is identical to that disclosed in Specification 1,520,841 but the claims relate to bonding the heat weldable marginal edge of a cover sheet which edge has been folded over the periphery of a base sheet by applying to the marginal edge heat the amount of which varies across the width of the marginal edge.
Patent GB-1217980-A (GB)
Title: Improvements in vibrators
IPC: B06B1/16
Filed: 1969-10-01
Abstract: 1,217,980. Separating solids. ROBERT BOSCH G.m.b.H. 1 Oct., 1969 [2 Oct., 1968], No. 48133/69. Heading B2H. [Also in Division B8] A vibrator for operating a conveyor or the like comprises an imbalance exciter 12, Fig. 1, secured to one of a pair of plates 7, 8 which are adjustably spaced apart by bolts 9 and urged away from a base plate 2 by springs 11. The base 2 is bolted to the frame 6 of the conveyer. In a second embodiment, Fig. 3, two exciters 16 synchronously driven, are connected to a plate 19 by a wall 18. The plate 19 and a plate 20 are adjustably spaced from a base plate 23 by springs 30 and bolts 29. In Fig. 5 the parallel shafts of two exciters 34 are arranged parallel to the longer sides of the vibratory plates 35, 36 and not at right angles thereto. The exciters are attached to the plate 35 and springs 43 and a single bolt 39 space the plates from the base 37. Fig. 6 shows two gear wheels 46 interposed between the wheels 45 of a pair of exciters to keep the height of the apparatus down below what it would be if the wheels 45 were enlarged to engage each other.