baber/WOPTO huggingface dataset:
Patent GB-864096-A (GB)
Title: Improvements in and relating to polyacrylonitrile solutions
Inventor: FURNESS VERA ISABELLA
IPC: C08F28/00
Filed: 1958-02-11
Abstract: 864,096. Acrylonitrile polymers. COURTAULDS Ltd. Feb. 10, 1959 [Feb. 11, 1958], No. 4389/58. Addition to 796,294. Class 2(6). Acrylonitrile polymers containing at least 80% acrylonitrile are produced by a modification of the process of the parent Specification in which acrylonitrile, with or without other monomers, is polymerized in a concentrated aqueous or aqueous/alcoholic solution of an inorganic thiocyanate in the presence of a non-oxidizing azo polymerization catalyst-forming free radicals and at a pH of 3À5 to 5À5. The acrylonitrile may be copolymerized with styrene, methyl acrylate, vinyl pyridine, itaconic acid or vinyl acetate. The inorganic thiocyanate may be the sodium or calcium salt and the azo catalyst may be azo-bisisobutyronitrile or azo-bis-isobutyric acid ethyl ester. A reducing agent such as thiourea dioxide, sodium formaldehyde sulphoxylate or sodium metabisulphite may be added to the polymerization mixture together with acid or alkali, depending upon the acidity of comonomers and other ingredients, to bring the pH into the above range. A buffering agent, e.g. sodium acetate, may be added to keep the pH constant during the polymerization. The polymer solution obtained may be extruded into an aqueous coagulating bath to form threads, which may be stretched in steam, and the coagulating bath may be later used as the polymerization medium, after concentration. Specifications 626,155 and 824,361 also are referred to.
Patent GB-288542-A (GB)
IPC: A61K9/20
Filed: 1928-02-11
Abstract: 288,542. Hermann, S., and Pharmaceutische Werke Norgine Akt.-Ges. April 11, 1927, [Convention date]. Addition to 285,091. Coatings for medicines; medicines for internal use.-In the manufacture of pills or pastilles according to the parent Specification, the mixture ot stearic acid with other fatty acids used as a pill mass or excipient is replaced by any single fatty acid or any mixture of fatty acids, provided that the melting point is lower than that of stearic acid. Specified materials are palmitic acid, mixed acids derived from coconut oil, and mixtures of palmitic acid with lauric acid or with coconut oil acids. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use of the acids as coatings for pills. This subject-matter does not appear in the Specification as accepted.
Patent GB-955275-A (GB)
Title: Silicone rubber coated tapes
Inventor: NOWAK PAUL
IPC: H01B3/46
Filed: 1961-02-06
Abstract: A silicone rubber-forming composition, for coating glass tapes (see Division B2), is made by mixing together (a) a dispersion of a dialkyl- or alkylaryl-polysiloxane containing a reinforcing filler in aromatic solvents, (b) a solvent-free dialkyl- or alkylaryl polysiloxane containing non-reinforcing fillers and (c) an organic peroxide catalyst.  Fillers specified are silica aerogel (reinforcing), and titania and zinc oxide (non-reinforcing). In the example (a) 100 parts (weight) of a 40% (weight) toluene dispersion of a dimethylpolysiloxane containing 26% silica aerogel, (b) 40 parts of a dimethylpolysiloxane containing 33% TiO2, (c) 2.6 parts of benzoyl peroxide, and 1 part of iron oxide, were mixed together, applied to a glass tape and cured in situ.ALSO:An insulating tape is made by combining (a) a dispersion of a dialkyl- or alkylaryl-polysiloxane containing a reinforcing filler in aromatic solvents, and (b) a solvent-free dialkyl- or alkylaryl-polysiloxane containing a non-reinforcing fillers, adding thereto an organic peroxide and applying the resulting combination (see Division C3) as a coating on a tape consisting of woven glass fibre.  If desired, the surface of the glass fabric may be given a grounding consisting of a dispersion of a dialkylpolysiloxane containing a reinforcing filler and including benzoyl peroxide.  The tape is then heated at 90-110 DEG C. to remove solvents and to convert the siloxane to the semi-vulcanized state, final curing of the siloxane being effected in situ.  An example is given.
Patent GB-872647-A (GB)
Title: Improvements in and relating to frequency changing electric systems
Inventor: CLARK LEONARD JACK
IPC: H02K47/20
Filed: 1957-02-08
Abstract: 872,647. Synchronous motors; converting. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 16, 1958 [Feb. 8, 1957], No. 4429/57. Drawings to Specification. Classes 35 and 38 (2). In a frequency-changer comprising an alternator driven by a synchronous motor, relative phase-shift between the two alternating currents, due to the synchronous motor falling back in angular position on load, is prevented by means of an additional quadrature motor field component proportional to the load on the alternator. The additional quadrature winding on the motor field member (rotor) may be energized from the alternator output current through a rectifier and current transformer.
Patent GB-1298281-A (GB)
Title: Improvements in or relating to y-junction circulators
Inventor: KNERR REINHARD HEINRICH
IPC: H01P1/383
Filed: 1970-01-30
Abstract: 1298281 Circulators WESTERN ELECTRIC CO Inc 30 Jan 1970 [3 Feb 1969 7 Oct 1969] 4540/70 Heading H1W A Y-circulator comprises overlapping radiallyextending strip conductors, the capacitance between the conductors being arranged to resonate with the inductance of the conductors at a frequency within the operating band. As described, the circulator comprises a disc 20 of gyromagnetic material bearing, on one side, a ground plane and, on the other, a pattern of strip conductors, e.g. as shown in Figs. 1, 4. A further disc and ground plane may be added to form a "sandwich" construction. As shown in Fig. 1, three radial strip conductors 11, 12, 13 are grounded by conductive pins 14, 15, 16 at one end and are provided with divided central portions which intermesh at insulated crossing points. Further overlapping is provided by sets of interdigitated fingers, e.g. as shown at 21. In one embodiment (Fig. 7, not shown), the overlapping of the central portions is alone relied upon to provide the necessary capacitance. This may be increased by insertion of thin dielectric spaces between the intersecting conductors. The pattern of intersection is symmetrical, i.e. it is identical for each strip conductor. In another embodiment (Fig. 4), the conductors 31, 32, 33 are connected at their ends to a circular conductive strip 39 which is recessed into the gyromagnetic disc so as to afford three insulated intersections 31a, 32a, 33a with the radial conductors. The circular strip 39 is grounded at the intersections by pins 34, 35, 36. Air or solid dielectric spacing may be used. The pattern of conductors and dielectric spacers may be built up using a photolithographic process.
Patent GB-397387-A (GB)
Title: Improvements in or relating to reciprocating engines
IPC: F16F15/22
Filed: 1933-02-14
Abstract: 397,387. Balancing reciprocating engines. SULZER FRERES SOC. ANON., Winterthur, Switzerland. Feb. 14, 1933, No. 4566. Convention date, Feb. 29, 1932. [Class 122 (iii).] In a reciprocating engine, a periodically varying force is applied to the main crank shaft through one or more subsidiary cranks driven by the main engine to balance a harmonic component of the torque applied to the shaft. The cranks may be connected to pistons subjected to fluid pressure, or to weights. In a four cylinder internal-combustion engine, a sinusoidally increasing and decreasing force H is applied to the main crank shaft of the engine so as to oppose the resultant B, Fig. 3, of the harmonic components of the first order represented by the vectors I . . IV of the torque curve of the four cranks. The force H is applied to a subsidiary crank set at an angle a to the engine crank corresponding to the vector IV. In the construction, shown in Fig. 5, the main shaft is connected to a subsidiary shaft with a crank operating a scavenging-air compressor. The desired balancing force is provided by a piston 7 mounted on an extension of the compressor piston-rod which is subjected to the pressure in a chamber 9 above the compressor cylinder 6. A modified arrangement is described wherein balancing pistons are attached to the compressor piston-rod and a compressor valve rod. The forces on the pistons are so arranged that their resultant balances in magnitude and direction the vector resultant of the vectors representing the harmonic components of the torque curve of the four cranks. The loading of the pistons may be effected by springs or hydraulic pressure. Reciprocating inertia masses may be used instead of pistons. The ratio of the speed of drive of the auxiliary shaft driving these masses to the speed of the main shaft must be equal to half the order of the harmonic component to be opposed.
Patent GB-702033-A (GB)
Title: Improvements in multiple sliding surface shaft bearings
IPC: F16C33/10
Filed: 1949-02-19
Abstract: 702,033. Bearings. FRÍSSEL, W. Feb. 19, 1949 [Oct. 1, 1948], No. 4598/49. Class 12(1) A bearing between two relatively rotatable members a, c is formed by the cylindrical surface of one member, and multiple sliding surfaces b on the other member, the surfaces b being of different curvature from the cylindrical surface so as to form load bearing wedges of lubricant and being so proportioned that at the point of minimum clearance h between the sliding surfaces the gap is 0.002 mm., the ratio between the gap at this point and that h<SP>1</SP> at 30 degrees angular displacement before and after this point is 1:25, and the difference between the radii R, r of the relatively movable surfaces is from five to ten times of 0.1 to 0.2 per cent of the shaft diameter. In the embodiment of Fig. 2 (not shown), the multiple sliding surfaces are alternatively on the inner member and the outer member has a plain cylindrical surface. The bearing may be formed of cast-iron, steel, sintered iron, glass or porcelain and may be lubricated by acids or lyes. The Specification as open to inspection under Sect. 91 comprises also an end thrust shaft bearing, and square and round sectioned relatively longitudinally moving members provided with bearing surfaces of the invention. This subject-matter does not appear in the Specification as accepted.
Patent GB-267682-A (GB)
Title: An automatic stop motion for carding machines
IPC: D01G31/00
Filed: 1926-02-18
Abstract: 267,682. Hoyle, J. E. Feb. 18, 1926. Stop-motions. - The patter A used to flatten the sliver on the feed lattice B of a carding- machine is arranged, on breakage, failure, or thinning of the sliver, to assume a position in which it will cause the stoppage of the machine. The patter A is connected by slotted links a to the arms a<1> which impart to it its up and down movements. It carries rods a<4> extending upwards through holes in arms a<5> on a shaft a<6>. When the sliver is absent or unduly thin the patter descends sufficiently to cause collars a' on the rods a<4> to move the arms a<5>, and through an arm a<8> on the shaft a<6>, to disengage a catch a<9> from a collar d on a rod D, which is them moved by a spring D<1> and operates a rod e to release a spring catch holding the belt-fork. The belt-fork is moved by a screw operated by a falling weight on a cord wrapped round a pulley. The pulley can be turned by hand to wind up the weight and move the belt fork back to restart the machine. The abutment e<2> on the rod e, which releases the belt-fork, is movable and can be turned into an inoperative position. The rod D may be used to control the switch arm of an electric motor, if the machine is driven electrically.
Patent GB-1078191-A (GB)
Title: Improvements in or relating to heat exchangers
Inventor: RADLEY STEWART ALBERT
IPC: F24D3/00
Filed: 1963-02-05
Abstract: 1,078,191. Gas fired water heaters. RADIATION Ltd. Feb. 4, 1964 [Feb. 5, 1963], No. 4694/63. Heading F4A. In a gas water heater heat exchanger comprising at least one finned water tube, a heat absorbing circuit is connected to the tube to provide a water circulating path comprising the tube and circuit so that residual heat in the finned tubes when the heater is turned off is absorbed by water in the circuit to prevent boiling and noise generation. As shown the heat exchanger comprises four finned, series connected, heating tubes 1 . . . 4, which may be of stainless steel, with a small cylindrical tank 6 connected in parallel across tubes 3, 4 and disposed clear of the path of combination products leaving the heat exchanger. During operation water flows through the tubes 1 . . . 4, the tank 6, tubing wound round the combustion chamber of the heater (not shown) and emerges through pipe 8. When the heater is turned off water including that from the tank continues to circulate through the tubes 3, 4. In another embodiment the finned tubes are connected in parallel between headers and tank 6 is connected between the headers with means for reducing the circulation through the tank whilst the heat exchanger is in use which may consist of non-return valves or small diameter pipes. In a further embodiment heat, for example from a separate gas burner is supplied to the circulation path to maintain a flow through the circulation circuit when the heater is turned off and the water, the temperature of which may be controlled by a thermostat, can be supplied when the heater is again used.
Patent GB-112213-A (GB)
Title: An Improved Apparatus for Filling Jars, Bottles, or other Vessels with Jam or other Substances or Liquids.
Inventor: LEALAND ARTHUR
IPC: B65B39/12
Filed: 1917-04-03
Abstract: 112,213. Lealand, A. April 3, 1917 Bottling; filling jars and like receptacles.-In a modification of the apparatus described in Specification 10428/13 for filling jars, bottles, &c., with jam or other substances or liquids, an open reservoir a with one or more closed receptacles b having discharge nozzles h and slidable air-tight inlet and outlet valves c, d is employed, the height of the reservoir a above the fixed table h<3> up to which the jars h<2> are raised being adjustable to vary the distance that the nozzles h protrude below the table, to enable jars of variable capacities to be filled to any predetermined general level from one size of receptacle b, the level of the liquid in the jars being governed by the depth to which the nozzles enter the jars The valve-plates c, d are operated by pivoted hand-levers c, f, and when the valve d is opened, a stop-finger f<1> ensures that the valve c is closed. The reservoir a and receptacles b are raised or lowered by means of screws i, which engage with nuts i<1> on the plate h<3> and are operated by bevelgearing i<2>, i<3> from shafts j situated at the ends of the reservoir. A cross-shaft k with a handwheel k<1> is geared to the shafts j. The jars rest on spring-pressed plates m<2> in a portable tray which is run on to an adjustable table q below the nozzles h. Distance-pieces o<1> on the pillars n enable the height of the false bottom m<1> of the tray to be adjusted. The table can be raised on pillars r by means of a treadle lever r<1> which operates wheels s<4>, s<5> gearing with racks s<6> connected to the table. An adjustable rod u pivoted to the lever r<1> passes through a hole in the slotted bracket g in which the hand-lever f works, and prevents the valve d from being opened until the jars have been brought up against the plate h<3>. The table is locked in the raised position by the top of the rod u engaging a projection on the lever f. A tray carried by a boss v<1> rotatable on one of the pillars r may be provided to catch any drippings from the nozzles. Air at atmospheric or greater pressure may be forced through a pipe w into the receptacle b when dense substances are being filled into the jars; or a small air-pipe fixed by the side of each nozzle may communicate with the upper end of each closed receptacle b. The reservoir a and the receptacles b may be jacketed.
Patent GB-569852-A (GB)
Title: Improvements in melting pots
IPC: F27B14/14
Filed: 1943-03-24
Abstract: 569,852. Melting-pots. WHITEHEAD, E. G. March 24, 1943, No. 4784. [Class 82 (i)] A pot for melting the more readily fusible metals, such as brass, aluminium, or zinc base alloy, is madeof glass or comprises an inner vessel made of glass, and means are provided for supporting the glass. The pot may comprise an inner shell C, Fig. 1, of glass supported by a shell B of ferrous metal. Alternatively, the pot may consist of a glass shell C, Fig. 2, without an outer supporting shell, the glass being strengthened by metal reinforcement K embedded therein.
Patent GB-972763-A (GB)
Title: Improvements in cavity walls of buildings
IPC: E04B2/30
Filed: 1961-02-09
Abstract: 972,763. Units for cavity walls. E. WENNSTROM. Feb. 9, 1961 [Feb. 12, 1960], No. 4828/61. Heading E1B. A cavity wall is formed from concrete blocks 2 each having one or two lugs 9, 10 projecting from one side, the blocks being built to form the leaves 6, 7 of the wall with the lugs overlapping each other and spaced from the inner surface of the opposite leaf. As shown each block is provided with two lugs, each extending over half the breadth of the blocks, or in an embodiment is disclosed a block having a single lug extending over the full breadth of the block. The blocks in each leaf may be in staggered bond or laid exactly on top of each other and the blocks in the two leaves are staggered or are exactly opposite each other.
Patent GB-1012597-A (GB)
Title: A milking system
IPC: A01J5/04
Filed: 1964-02-05
Abstract: 1,012,597. Milking machines. DAIRY EQUIPMENT CO. Feb. 5, 1964 [Feb. 6, 1963], No. 4847/64. Heading AIM. A milk receiver vessel 26 is connected at 32 to vacuum and at 30 to the milk claw and has at its lower end a chamber 44 comprising a metal sleeve 50 and a rubber lining 48, the sleeve 50 having a connection 58 to a pulsator whereby the lining 48 is alternately expanded and collapsed to discharge milk from the vessel. When the pulsator connects the space between sleeves 48, 50 to vacuum, the sleeve 48 is expanded so that milk flows from chamber 28 into chamber 44. When the space is vented to atmosphere sleeve 48 collapses to close valve 46 and open valve 64 so that milk is forced from chamber 44 into the milk line 68.
Patent GB-858733-A (GB)
Title: Centrifugal gate valve for sewing machines
IPC: D05B71/00
Filed: 1959-02-11
Abstract: 858,733. Lubricating. SINGER MANUFACTURING CO. Feb. 11, 1959 [Feb. 14, 1958], No. 4857/59. Class 12 (3). [Also in Group XXIX] In a sewing-machine comprising a shaft 20 having a bore 21 through which lubricant is supplied to bearing-surfaces of eccentrics 33, 35, a sewing speed responsive valve 47 ... 50 is provided where the lubricant enters the bore 21 to obviate the supply of excess lubricant at low speeds. The valve comprises a spring-pressed gate member 47 which, at high speed, slides in a slot 46 and uncovers the bore 21. Lubricant within a reservoir 16 becomes agitated on rotation of an internal gear 24 and is thrown in a fine mist from about the reservoir, thereby entering the bore 21. To facilitate flow of lubricant by capillary action, a rod 44 is disposed in the bore 21. Specification 534,453 is referred to.
Patent GB-1263295-A (GB)
Title: Improvements in or relating to universal joints
IPC: F16D3/40
Filed: 1969-01-29
Abstract: 1,263,295. Making universal joints. NADELLA, and A. PITNER. 29 Jan., 1969 [30 Jan., 1968], No. 4902/69. Addition to 1,208,006. Heading B3A. [Also in Division F2] A Hooke's joint fork is formed from a blank A having two tabs 5a, 5b on one side forming the fork branches, the connecting edge 23a being first deformed from the plane of the blank to increase its developed length prior to forming the fork, the branches of which have their facing surfaces concave. The shaft gripping hub may be as in Fig. 4. Reference has been directed by the Comptroller to Specification 1,208,007.
Patent GB-124067-A (GB)
Title: An Internal Combustion Turbine Engine for Aeroplanes, Seaplanes, Airships and the like.
Inventor: RUSSELL JOHN
IPC: F02C5/12
Filed: 1918-03-21
Abstract: 124,067. Russell, J., and Kennedy, R. March 21, 1918. Jet-wheels; working fluid supply; cooling parts. -- An internalcombustion t u r b i n e suitable for aeroplanes, seaplanes, &c. comprises two rigidly connected rotors b, c having an air space between them and provided over a portion of their periphery pockets 10 co-operating with explosion chambers 14, 14a, 14<b>, the pocket portion of the rotor b being opposite the pocket portion of the rotor c so that the two portions operate alternately. Each explosion chamber has camoperated valves 19, 20 admitting air and fuel from chambers 17, 18, the fuel admission to the chamber 18 being controlled by a valve 33 operated by a cam 35, rod 38, crank 39, and wheel 40. Two clearance spaces 8, 8<a> are provided between the rotors and the casing, the space 8<a> having a cold-air connexion 9, while the space 8 communicates with the exhaust outlet 5. Pipes 30, connecting the space 8<a> with h the explosion chambers and having non-return valves 31, admit cooling and scavenging air to the explosion chambers after each explosion, the cooling action being assisted by fan blades 7 on the sides of the rotors, which blades serve also to expel through the outlet 5 the exhaust gases arriving through the rotor parts 13. The number of rotors and explosion chambers may be varied.
Patent GB-585549-A (GB)
Title: Improvements in the treatment of white textile materials
IPC: D06L4/621
Filed: 1944-03-01
Abstract: White cellulosic textile materials of the class used for the manufacture of articles requiring frequent laundering are rinsed, in the form of piece goods, yarn or fibre, in an aqueous bath containing a very small proportion of a substantive blue-fluorescent substance. Advantageously the aqueous bath contains not more than 0.05 per cent and suitably between 0.01 per cent and 0.001 per cent of the blue-fluorescent substance calculated on the weight of the textile material to be treated. Specified substances are: a di-benzoylaminostilbene sulphonic acid or a nuclear substitution derivative thereof or a salt of these acids, e.g. a 4 : 41-dibenzoylaminostilbene-2 : 21-disulphonic acid or a nuclear substitution derivative thereof or a salt of these acids, 4 : 41-di-p-aminobenzoylaminostilbene-2 : 21-disulphonic acid or a salt thereof, sodium 4 : 41 - di - p - methylbenzoyl - aminostilbene - 2 : 21 - disulphonate; the corresponding 3 : 31-disulphonates and 2 : 21-6 : 61-disulphonates; the symmetrical urea derived from sodium 4-amino-41-benzoylaminostilbene-2 : 21-disulphonate; dibenzyl derivatives such as sodium 4 : 41-dibenzoylaminobenzyl-2 : 21-disulphonate; benzidene derivatives such as sodium dibenzoylbenzidine-3 : 31-dicarboxylate.  In an example a new white cotton cloth is rinsed for a few minutes in an aqueous bath containing 0.005 per cent (calculated on the weight of the cloth) of the sodium salt of 4 : 41-di - p - aminobenzoylaminostilbene - 2 : 21 - disulphonic acids.  Specifications 442,530, [Group VIII], and 522,672 are referred to.