baber/WOPTO huggingface dataset:
Patent GB-1485151-A (GB)
Title: Multiple glazing panel
IPC: E06B3/67
Filed: 1974-01-22
Abstract: 1485151 Multiple glazing units GLAVERBEL-MECANIVER 16 Jan 1975 [22 Jan 1974] 02876/74 Heading E1R A multiple glazing unit with sound insulating properties comprises at least three vitreous sheets 11, 13, 14 and metal spacers 17 of channel section. Sheets 13 and 14 are in direct contact with one of the walls 19 of the spacer giving a "dynamic coupling", the inner sheet 13 being held in position by the resilient portion 22 of the spacer while the outer sheets 11, 14 are attached to the spacer by, preferably non-hardening, adhesive at 20, 21, giving a "non-dynamic coupling". Desiccants may be used in the air space.
Patent GB-983027-A (GB)
Title: Improvements in or relating to feet for articles of furniture
Inventor: BINKS HENRY PETER
IPC: A47B91/06
Filed: 1963-01-23
Abstract: 983,027. Furniture tips &c. PLASTIGLIDE PRODUCTS Ltd. Jan. 9, 1964 [Jan. 23, 1963], No. 2883/63. Heading A4U. A furniture foot or glide castor comprises an aluminium ferrule 10 and a ground-engaging pad 11, the part 10 having a concave part-spherical seating surface 12 against which bears the outer partspherical surface 13 of a hollow boss 14 formed on pad 11, a stem 17 projecting downwardly from surface 12 passing through a central hole 18 of larger diameter and the lower end of the stem 17 being expanded after assembly to form an overlapping flange 20 and hold the parts together whilst allowing relative tilting movement between them. The foot is secured to the leg 22 of an article of furniture by a nail 23, a wood screw, a bolt and screw socket or by an integral spike 24, Fig. 3.
Patent GB-908378-A (GB)
Title: Improvements in or relating to rotating combustion engines
IPC: F01C19/10
Filed: 1961-01-25
Abstract: 908,378. Rotary l.C. engines. CURTISSWRIGHT CORPORATION. Jan. 25, 1961 [Jan. 29, 1960]. No. 2946/61. Class 110 (2). The rotor 24 of a rotary I.C. engine of the n and n+1 lobe type is sealed by means of spring-loaded sealing strips in grooves in the apex of each lobe of the rotor and in the end faces of the rotor. Sealing strips 52 slide in apex grooves 50, slightly wider than the sealing strips, so that the groove is pressurized. The bottom of each groove 50 has an enlarged cylindrical portion at each end of the groove in which slides an intermediate seal member 56 which is slotted to take the sealing strip 52. Sealing strips 62, of L-shaped cross-section are fitted in grooves 60 in each end face of the rotor 24, and engage the flank portions 78 of the intermediate seal members 56. There is provided in the centre of each strip 62 a notch with which pins 72 engage to prevent movement of each strip 62 along its length. The ends of the strips 62 and of the intermediate seal members 56 may be connected by a tongue and groove (Fig. 8, not shown). A circular end face sealing strip 66 is also provided, radially inward of strips 62, to act as an oil seal. To provide effective end sealing with the apex sealing strips 52, they should be made of material whose coefficient of thermal expansion is between 0.4 and 0.7 for a water-cooled engine, or 0.65-0.8 for an air-cooled engine, times as great as that of the material of which the casing is made. The end wall sealing strips may be omitted from one side of the rotor. The axial width of the rotor (shown in Fig. 5) varies with the distance from its axis, to allow for thermal expansion.
Patent GB-1184502-A (GB)
Title: Collagen Derivatives for Fining Beer.
Inventor: COURTS ALBERT
IPC: C12H1/052
Filed: 1968-01-19
Abstract: 1,184,502. Eu-collagen. GELATINE & GLUE RESEARCH ASSOCIATION. 17 Jan., 1969 [19 Jan., 1968], No. 2986/68. Heading C3H. [Also in Division C6] A composition for fining beer comprises an acidic preparation of eu-collagen. The eucollagen may be prepared by alkaline treatment of ossein or hide collagen at raised temperatures, e.g. between 18‹ and 29‹ C., in the presence of a substance capable of preventing swelling of the collagen, e.g. sodium sulphate. The acidic constituent of the preparation may be citric, lactic or tartaric acid. According to an example, dry ossein (decalcified bone) is soaked in sodium sulphate solution, the sulphate liquor is removed and used as the solvent for some sodium hydroxide, and this solution is added to the ossein and allowed to act for four days at about 20‹ C. At the end of this time the ossein is drained, washed in running water and acidified with hydrochloric acid to pH 4. The ossein is then washed again until it is almost neutral and it is then dissolved with agitation into 0.2% tartaric acid solution to give 10 litres of finings at pH 2.5. In other examples the collagen source is cow hide and tannery split pieces, respectively. Beer is treated with a solution of mixed ossein and hide eu-coHagens.
Patent GB-607326-A (GB)
Title: Improvements in or relating to the production of benzene hexachloride and of insecticides containing it
IPC: C07C17/02
Filed: 1946-01-30
Abstract: Benzene hexachloride, suitable for inclusion in insecticidal compositions, is made by the additive chlorination of benzene in actinic light in the presence of not more than 10 per cent by weight of an aromatic disulphide having the general formula X-S-S-X, wherein X represents a benzyl or phenyl radical which may contain substituent groups inert to chlorine, e.g. halogen, nitro or alkyl.  In examples: (1) benzene containing 0.1 per cent of dibenzyl sulphide is chlorinated at 40 DEG  to 45 DEG  C. under irradiation from a mercury vapour lamp until the density of the reaction mixture is 0.97 to 1.0 when the mixture is steam distilled to remove unreacted benzene leaving a residue which is cooled, dried and may be diluted with gypsum to obtain an insecticidal composition; (2) benzene containing 1.0 per cent by weight of dibenzyl sulphide is chlorinated and the product is isolated as in (1); (3) benzene containing 4.0 per cent by weight of dibenzyl sulphide is chlorinated as in (1).  Specification 573,689 is referred to.ALSO:Benzene hexachloride, suitable for inclusion in insecticidal compositions, is made by the additive chlorination of benzene in actinic light in the presence of not more than 10 per cent by weight of an aromatic disulphide having the general formula X-S-S-X wherein X represents a benzyl or phenyl radical which may contain substituent groups inert to chlorine, e.g. halogen, nitro or alkyl.  The benzene hexachloride may be incorporated with other materials to form insecticidal compositions having specific uses such as dusts, sprays or dispersible powders. It may, for instance, be intimately mixed with a diluent material such as talc, gypsum or chalk, with edible substances such as bran, or with adhesive substances.  Specification 573,689 is referred to.
Patent GB-756545-A (GB)
Title: Improvements in or relating to manufacture of hydrazine
IPC: C01B21/16
Filed: 1952-02-06
Abstract: Aqueous hydrazine is distilled in contact with a dehydrating agent and a saturated hydrocarbon whose boiling temperature at atmospheric pressure is within the range of about 90 DEG C. to about 150 DEG C. Mineral oils in which a minor amount of an aromatic or olefinic hydrocarbon may be present, and aliphatic and cycloaliphatic hydrocarbons are specified.  Presence of hydrocarbon in the distilland stabilizes the anhydrous hydrazine. The dehydrating agent may be sodium hydroxide, barium hydroxide, or calcium oxide.  At least one mole of sodium hydroxide should be used per mole of water to be removed.  The process may be continuous, the dilute aqueous hydrazine, sodium hydroxide and hydrocarbon being fed continuously to the still while continuously removing sodium hydroxide monohydrate from the still and separately removing hydrazine and hydrocarbon, which form separate layers, from the distillate receiver.  The hydrocarbon can be returned to the still and a portion of the sodium hydroxide monohydrate enriched and returned to the still with the aqueous hydrazine, the remainder of the monohydrate being dehydrated. A portion of the hydrocarbon may be retained with the hydrazine to reduce hazards in store or in transport.  In an example 99 per cent of the hydrazine was recovered at 96.3 per cent cencentration by distilling a 54.5 per cent aqueous hydrazine at about 105 DEG C. with sodium hydrazine and 40 per cent by weight of the aqueous hydrazine of a crude oil fraction boiling between 121 and 143 DEG C. In a modfication the hydrocarbon is metered to the still as a vapour, some liquid hydrocarbon being present in the still throughout the distillation.
Patent GB-1376129-A (GB)
Title: Digital error simulator
IPC: H04L1/24
Filed: 1972-01-24
Abstract: 1376129 Testing data transmission systems POST OFFICE 24 Jan 1972 [26 Jan 1971] 3185/71 Heading H4P A pseudo-random or random pulse generator introduces error bits into a digital data stream. The error bits may be distributed or occur in bunches, at selectable average rates and bunch length. The arrangement provides an error ridden signal for testing a transmission system. TDM 7-bit parallel PCM signals IT1-IT7 are converted into serial form at gate SG10 by gates SG1-SG7 opened by sequential clock pulses SD1-SD7 and pass via an exclusive-OR circuit comprising gates SG14-SG16, the output of which is sampled by strobe pulses from information synch generator (Fig. 1b) at gate SG16 and converted back to parallel form by gates SG32-SG26 and sequential clock SD1-SD7 for storage on bi-stables BT9-BT15. Bi-stables BT16-29 accept the 7-bit signal for transmission on outputs OT1-OT7. A pseudorandom or random pulse generator, having a Zener diode noise generator has its output divided by 2 to generate equal probabilities for the 0 and 1 bits. To insert distributed errors, switches ES1- ES3 are set to position DE, whereby error bits from the error generator, at an average rate selected by divider switch ER, are synchronized with clock pulses PC2 by bi-stable BT23 and are then fed via switch ES to the exclusive-OR gate arrangement SG14-SG16 to modify the clear data bit streams. To insert bunched errors switches ES1-ES3 are set to position BE and a circuit via true and inverted inputs VTT and IVTT supplies pulses of a selectable duration at intervals having a Gaussian distribution (Fig. 2, not shown). Only during the periods of the pulses does AND gate SG11 block the clear data stream and AND gate SG12 admit a bunch of error bits from the error generator. In an alternative arrangement the bunches of errors can be introduced by not inhibiting the data stream but supplying the error bunches to the exclusive-OR gate arrangement as with the distributed errors.
Patent GB-122726-A (GB)
Title: Improvements in or relating to Marine Engine Stop and Control Valves.
Inventor: COPELAND RIDLEY
IPC: F01B25/00
Filed: 1918-02-22
Abstract: 122,726. Copeland, R., (trading as Carville Engineering Co.). Feb. 22, 1918. Lift valves. - Relates to a lever-operated marine-engine stop valve in which the fluid pressure tending to hold the valve member g closed is balanced, prior to opening, by means of a pilotvalve s, by-pass v, and a balance piston e. The valve is characterized in that the by-pass valve s is a sliding D-valve, the exhaust port of which is open to the condenser through the passage w, and in that the by-pass valvo s is operated by a crank-connexion with the main operating-lever m. The initial operating movement of the lever m from positions 1 to 2 moves the by-pass valve connexion from t<1> to t<2> and moves the said valve s so as to cut off the condenser and open the space above the balance piston e to the steam passage c through the by-pass pipe v. The piston and valve e, g are thereby balanced. Further movement of the lever m to position 3 readily opens the main valve g, but the change of position of the by-pass connexion from t<2> to t<3> does not vary the position of the by-pass valve s owing to the crankconnexion being in the region of its dead-centre between positions t<2> and t<3>. The lever m operates through a link n and lever o; an alternative means for closing the valve consists of the screw p.
Patent GB-726839-A (GB)
Title: Improvements in mortise locks for doors or furniture
IPC: E05B65/44
Filed: 1953-02-05
Abstract: 726,839. Key-operated bolts. GERMANN, K., and LAMBRECHT, J. Feb. 5. 1953 [Oct. 22, 1952], No. 3296/53. Class 44. In a mortice lock comprising a cylindrical housing 1 and a bolt 3 having a cylindrical guide part the peripheral surface of which adjoins a segmented attachment 4, the latter is provided with notches 13, 14 for a double-bit key 5 serving to shift the bolt in both directions, the width of the key, measured over the two bits, being approximately equal to or approaching in extent the inside diameter of the lock housing, and notches 16, 17, 18, being provided for the engagement of a click spring 19 or tumbler which extends over the key and is also operated by the key bits. In the arrangement shewn a stop 8 secured within the housing co-operates with a recess 9 in the end of the attachment 4. The key may be inserted from either side of the housing.
Patent GB-777383-A (GB)
Title: Improvements in or relating to grid-controlled mercury arc rectifiers
IPC: H02M7/15
Filed: 1955-02-04
Abstract: 777,383. Rectifying. HACKBRIDGE & HEWITTIC ELECTRIC CO., Ltd., and WELLS, R. Jan. 24, 1956 [Feb. 4, 1955], No. 3332/55. Class 38 (2). So that the D.C. output voltage of a grid-controlled mercury arc rectifier energized through a transformer including an interphase transformer 9 does not rise under no load conditions, the instant of grid energization is retarded by the disappearance of a bias voltage derived from the interphase transformer normally applied to the grids 3. This bias voltage is taken from the output of a rectifier 17 supplied through transformer 12 from interphase transformer 9, and applied between cathode 2 of the mercury arc rectifier and star point 29 of the secondary windings 26 of the grid transformer. The bias voltage is smoothed by LC circuit 21, 22 and its value adjusted by potentiometer 20. The voltage applied to transformer 12 may be suitably adjusted by varying tappings on interphase transformer 9, Fig. 2 (not shown), or on a resistor connected across it, Fig. 3 (not shown). Specification 712,267 is referred to.
Patent GB-869641-A (GB)
Title: Improvements in vehicle drawn trailers more particularly for the transport and transshipment of containers
IPC: B60P1/64
Filed: 1958-02-03
Abstract: 869,641. Transferring freight containers to and from vehicles. RHEINSTAHL SIEGENER EISENBAHNBEDARF A.G. Feb. 3, 1958 [Feb. 2, 1957], No. 3501/58. Class 78 (4). [Also in Group XXXII] A trailer, or a semi-trailer, for carrying containers provided with rollers, has at least one wheel set 16 (Fig. 1) pivotally connected to the chassis 1 by crank, arms 15, and has also a parallel-link mechanism 27, 28 by which the chassis 1 is connected either to another wheel set or, as shown, to a driving unit 26. This arrangement permits the chassis 1 to be lowered to the ground, and also permits the links 27, 28 to be adjusted, while the chassis 1 is on the ground, for connection to the second wheel set or driving unit. In the arrangement shown the rollers 7 of the container 9 are supported on rails 4 carried by a turntable from the chassis 1. The rails 4 may be tipped, as shown in Fig. 5, by a ram 36, and a further ram 12, which may be mounted on a frame independently rotatable about the axis of the turntable, or which may be carried by a universal mounting 11 (Fig. 1) on the turntable, serves to move the containers on to and off the rails 4. Movement of the links 27, 28 is by a ram 19, and movement of the crank arms 15 is by a ram 19. An auxiliary wheel 30 supports the driving unit 26 when it is disconnected from the semi-trailer. Stops 34 engage recesses 35 in the rails 4 to lock the turntable when the rails are lowered.
Patent GB-253161-A (GB)
Title: Improved manufacture of homogeneous, ductile pieces of chemically pure metals of the tungsten group, having a high melting point, such as tungsten, molybdenum, and uranium, and also of titanium, & chromium
IPC: C22B34/00
Filed: 1925-02-07
Abstract: 253,161. Gewerkschaft Wallram Abteilung Metallwerke, Voigtlõnder, H., and Kaufels, O. Feb. 7, 1925. Dry processes of f extracting tungsten and other refractory metals; thermo-aluminic and like metal-extracting processes. - Tungsten, molybdenum, uranium, titanium, chromium, and like metals having a high melting-point are obtained in ductile form from their oxides by exothermic reduction, the violence of which is lessened and controlled by (a) first reducing the oxide with a gaseous or other reagent and then completing the reduction by means of a metal such as aluminium, or (b) reducing the oxide by means of aluminium or the like in the presence of contact materials such as metals or metal oxides, or (c) causing the oxide and reducing-agent to act on each other in very finely-divided form, e.g. atomized or vaporized, or carried in heated gas currents, preferably in counter-current. External heat may be applied if necessary. The molten product may be stratified by magnetic or centrifugal means before solidifying, several metals being thus obtained in separate layers. Specification 23499/09 is referred to.
Patent GB-399374-A (GB)
Title: Improvements in or relating to soldering-irons
IPC: B23K3/06
Filed: 1933-02-06
Abstract: 399,374. Soldering-irons. BAIN, A. G., Muirhead, Head of Muir, Denny, Stirling- shire. Feb. 6, 1933, No. 3512. [Class 83 (iv).] In a soldering-iron of the type having a reservoir for molten solder, means for melting the solder and an outlet control valve, a rod of solder is inserted in a holder surrounded by a heating chamber, melted solder being received in a reservoir with outlet control valve. A tube a which passes through a handle b, being held from contact therewith by flanged washers, carries at its lower end a cylinder d, provided with a removable cap e on which is formed or to which is attached the bit c, and at its upper end a cover containing a non- return supply tube or holder k into which a rod of solder is inserted. The bit is provided with an outlet v which is normally closed by a spring-pressed pivoted valve, opened by a trigger v<3> on the handle. The outlet communicates with channels in the base of the bit. The cylinder is surrounded by a heating chamber g and the cover j has a screw-plug m, which is removed when the solder is to be removed from the container. The heating may be effected by gas, acetylene, oil or by electricity. In the case of electric heating a resistance wire is wound on a mica former inserted in the chamber g. When gas heated, as shown, the heating chamber has air inlet ports h and vent holes i and the tube a is provided with air holes u and regulator u<1>. The tube contains a pipe o furnished with a screw-down valve rand needle valve t. The tube k is connected by webs to the inner wall of the heating chamber so as to melt solder inserted therein.
Patent GB-911739-A (GB)
Title: A decompression stage indicator for divers
IPC: G01L7/00
Filed: 1961-01-30
Abstract: 911,739. Decompression indicators. ALINARI, C. Jan. 30, 1961 [Jan. 30, 1960], No. 3527/61. Class 106 (2). [Also in Group XXI] A decompression stage indicator for divers comprises a chamber 10 connected through a throttle 13 to a non-deformable chamber 12 connected with a pressure gauge 14. The effect of the throttle is such that at any given depth the gauge does not register the expected pressure until sufficient time has elapsed to allow the necessary amount of nitrogen to escape from the tissues of the diver's body. A bladder 15 containing compressible fluid is situated in chamber 12 if chambers 10, 12 contain water but is unnecessary if they contain air. Throttle 13 may be a calibrated hole, a nozzle or a labyrinth. In another embodiment, Fig. 4, a container 101 formed with holes 102 has a flexible casing 103 defining a chamber 104 connected through a porous ceramic member 121 to a non-deformable chamber 110 containing a Bourdon tube.
Patent GB-581677-A (GB)
Title: Improved spark plug
IPC: H01T13/36
Filed: 1945-02-13
Abstract: 581,677. Springs. AC-SPHINX SPARKING PLUG CO., Ltd., and CORBIN, D. H. Feb. 13, 1945, No. 3534. [Class 108 (iii)] [Also in Group XXVII] In a sparking-plug the insulator assembly 3 is retained under pressure on a gasket 4, seated on a ledge by an encircling steel spring 7 of elongated S cross section. The top of the spring fits the inwardly-turned lip 8 of the shell which is forced down to put the spring under pressure, and the bottom is seated on a gasket 6 to fit the curved shoulder of the insulator 3.
Patent GB-900107-A (GB)
Title: Oxidation of organic compounds by ruthenium tetroxide
IPC: C07D307/33
Filed: 1959-02-02
Abstract: Ruthenium tetroxide is prepared by slowly adding aqueous sodium bromate solution to a boiling mixture of ruthenium trichloride and aqueous hydrochloric acid, the resulting RuO4 volatilizing off as it is formed.ALSO:Olefins, N-alkyl substituted aliphatic amides and cyclic ethers are oxidised to, respectively, aldehydes, imides (N-alkanoyl substituted amides) and lactones by means of ruthenium tetroxide at a temperature not substantially exceeding ambient temperature, preferably at 0-20 DEG C., and in the presence of a substantially inert solvent e.g. water, CHCl3, CCl4, a paraffin, a naphthene, acetone, ethyl acetate or butyrolactone.  Examples describe the oxidation of cyclohexene to adipaldehyde, 1-octene to heptaldehyde, N-n-hexyl heptamide to hexoyl heptoyl amine and tetrahydrofuran to butyrolactone.  Tetrahydrofurfuryl alcohol oxidised similarly is believed to yield an aldehyde-lactone.
Patent GB-452091-A (GB)
Title: Device for transmitting motion in either of two opposite senses
IPC: F16H3/14
Filed: 1936-02-06
Abstract: 452,091. Reversing-gearing. RENAULT, L., 8, Avenue Emile Zola, Billancourt, Seine, France. Feb. 6, 1936, No. 3672. Convention date, April 16, 1935. [Class 80 (ii)] [See also Group XXXI] A vehicle transmission mechanism adapted to transmit power simultaneously from a primary shaft 1, Fig. 2, to two driving axles, 6, 7, Fig. 1, which are on opposite sides of it and are adapted to be driven alternatively in opposite directions, is characterized in that two secondary shafts 4, 5 are geared on the one hand to their respective axles 7, 6and on the other hand are interconnected by a gear pair 8, 9 so as to rotate in opposite directions, and means are provided for driving positively either secondary shaft at will from the primary shaft. In the form shown, a pinion 2 is splined on the shaft 1 and the change in direction of the vehicle is obtained by sliding the pinion 2 from engagement with a wheel 10 fast on the shaft 4 into engagement with a wheel 11 fast on the shaft 5. In another form, there are two constant-mesh pinions loose on the shaft 1 with a sliding double clutch between them. In a third form, the constant-mesh pinions are fast on the shaft 1 and the wheels 10, 11 are loose and adapted to be entrained by alternative clutches.