baber/WOPTO huggingface dataset:
Patent GB-462781-A (GB)
Title: Improvements in ceramic compositions
IPC: C04B35/63
Filed: 1936-03-19
Abstract: A binder for a ceramic composition consists of aluminium phosphate formed in situ from an ammonium phosphate and a material rich in aluminium oxide, such as clay, bauxite or another aluminium hydroxide.  Heating to 200 or 300 DEG  C. serves to develop the binder.  The Specification as open to inspection under Sect. 91 comprises also the use of other solid compounds of phosphoric acid, for example acid-reacting phosphates of the alkaline earth metals, and the addition of water-soluble salts of aluminium.  This subject-matter does not appear in the Specification as accepted.ALSO:A binder for a ceramic composition consists of aluminium phosphate formed in situ from an ammonium phosphate and a material rich in aluminium oxide, such as clay, bauxite or another aluminium hydroxide.  Heating to 200 or 300 DEG  C. serves to develop the binding action.  Suitable fillers for the composition are quartz, chamotte, synthetic spinel, sillimanite or sintered corundum.  The Specification as open to inspection under Sect. 91 comprises also the use of other solid compounds of phosphoric acid, for example acid-reacting phosphates of the alkaline earth metals, and the addition of water-soluble salts of aluminium.  This subject-matter does not appear in the Specification as accepted.
Patent GB-682067-A (GB)
Title: Manufacture of 1,2-epoxy-2,4,4-trimethylpentane
Inventor: GASSON EDWARD J
IPC: C07D303/04
Filed: 1949-03-26
Abstract: 1,2 - Epoxy - 2,4,4 - trimethylpentane is made by reacting gaseous oxygen with alpha-diisobutene in the liquid phase at 90-150 DEG  C., at pH 7-10.5 and in the presence of an oxidation catalyst.  Pressure, e.g. 200 p.s.i. at 140 DEG  C. may be necessary to ensure a liquid phase.  pH adjustments are made with inorganic bases or salts representative of those specified being sodium hydroxide and bicarbonate and magnesium oxide and carbonate. They are preferably added in aqueous solution or suspension.  pH adjustments may also be made by evaporating off acids, e.g. formic acid, formed during the reaction.  Preferred reaction times are 1/2 -10 hours.  Catalysts specified are compounds of Co, Mu, Fe, Ni, V, Pb, Cu, Ce, Zn, Cd, Ag, Cr and W.  The process may be made continuous and unchanged, diisobutene returned to the oxidation stage after freeing from low-boiling products the epoxide being removed by fractionation.  The epoxide may be isomerized to the corresponding aldehyde or reacted with, e.g. alcohols, ammonia, amines, acids, to give ethers, alkanolamines and esters or hydrogenated to the corresponding alcohol.  In examples the epoxide is obtained by the air oxidation with cobalt naphthenate as catalyst of (1) 2,4,4-trimethylpentene-1 with the addition of magnesium oxide; (2), (3) and (4) commercial diisobutene with the addition of aqueous sodium carbonate, magnesium sulphate and aqueous caustic soda, and disodium hydrogen phosphate and aqueous caustic soda respectively and with lead naphthenate as catalyst in (5) where commercial di-isobutene is oxidized with the addition of aqueous sodium carbonate.  In (1) the roughly separated or crude product is treated with phosphoric acid to yield 2,4,4-trimethylpentenal and in (2) methylneopentyl ketone is also formed.  In Provisional Specifications no temperature limits are given.  In the first Provisional Specification slightly acid or neutral conditions may be maintained and metallic, e.g. Co, Cu, Mn, or Ni, catalysts used.  In the second Provisional Specification organic peroxides, e.g. tert. butyl peroxide may also be present and in the third Provisional Specification an example is given in which sodium vanadate is used as a catalyst.
Patent GB-1083768-A (GB)
Title: Improvements in or relating to a safety valve
IPC: F16K17/04
Filed: 1966-02-24
Abstract: 1,083,768. Valves. DRESSER INDUSTRIES Inc. Feb. 24, 1966 [Feb. 24, 1965], No- 8303/66. Heading F2V. A pressure-relief valve includes a disc 18 cooperating with a seat 38 and a member 34 movable with the disc and co-operating with a surface 44 to provide a secondary orifice y which decreases in area as the disc lifts. The seat 38 is formed on a member adjustably mounted on an inlet nozzle 16. As the steam discharges, it impinges on a horizontal surface 32 to provide rapid opening, the area of the secondary orifice decreasing most rapidly during initial movement of the valve to maintain the reaction effect of the escaping steam at its optimum value throughout the full movement of the valve. Closing of the valve is also accelerated by the effect of the secondary orifice.
Patent GB-259121-A (GB)
Title: Improved method and means for the fixation of glass panes in their frames
IPC: E06B3/60
Filed: 1926-03-27
Abstract: 259,121. Asseler, J. d'. March 27, 1926. Glazing.-Sheets of glass are secured in frames of windows, glasshouses, &c., by means of a sheet-metal capping 1 bolted to the frame and provided with a double-bent part 12, 13 extending between the glass and frame and terminating in an extension 10 bearing on the glass, with or without putty. When applied to vertical frames, the glass, sheet 11<1>. Fig. 2, is provided with a grooved rib 16 adapted to engage the extension 10. In fixing inclined overlapping sheets, the metal strips 7, Fig. 8, are of elongated trapezoidal shape, the adjacent edges being covered by strips 48 soldered to one strip and curved and bent substantially at right-angles. Additional covering elements consisting of bent sheets having side wings 20, Fig. 4, may be applied over the capping.
Patent GB-1417231-A (GB)
Title: Colour television display apparatus
IPC: H04N9/64
Filed: 1973-02-21
Abstract: 1417231 Colour television PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 Feb 1973 [24 Feb 1972] 8436/73 Heading H4F The beam current levels of a three-gun cathode-ray tube are corrected during three successive line periods at the beginning of each field. During these three line periods a signal fed from a pulse generator 35 to a level insertion circuit 59 (also Fig. 5, not shown) receiving the separated luminance signal causes the circuit 59 to pass to a distributer circuit 75 a reference level, the signal passed to distributer 75 during the other line periods of each field being the received luminance signal. Level insertion circuit 59 also provides a second output to cut off a chrominance amplifier 69 during the specified three line periods at the start of each field, the output of amplifier 69 being fed to matrix circuit 115 to derive red, green and blue colour difference signals which are fed to respective blanking circuits 95, 93, 91 (also Fig. 4, not shown) in which the modified luminance signal from distributer 75 is added to the colour difference signals, a different signal being passed to each of blanking circuits 95, 93, 91 from pulse generator 35 so as to suppress the luminance reference level in two of the three line periods during which it is present in the output of distributer 75, the outputs of blanking circuits 95, 93, 91 being red, green and blue signals respectively, each of which has a reference level (from the luminance signal) in a different one of the specified three line periods. These signals are supplied to respective beam current level correction circuits 133, 135, 137 (also Fig. 4, not shown) which receive blanking signals from pulse generator 35 and respective correction signals from storage devices 163, 165, 167, each of which is connected by a respective switch 177, 178, 179 to a measuring circuit 187 (also Fig. 3, not shown) during that line period during which the input to the respective beam current correction circuit 133, 135, 137 has the reference level, the storage devices 163, 165, 167 retaining the stored values for the following field period. Brightness control may be effected by adjusting a potentiometer (509, Fig. 5, not shown) in the level insertion circuit 59. White-point correction is carried out using adjustable resistors (429, Fig. 4, not shown) in the beam current level correction circuits 133, 135, 137. Pulse generator 35 includes a shift register (603, Fig. 6, not shown) and a plurality of gate circuits. The beam current level correction may alternatively be applied to an assembly of several individual cathode-ray tubes.
Patent GB-662075-A (GB)
Title: Improvements relating to smokeless solid fuel stoves
Inventor: COLEY ERIC HARRY
Filed: 1949-03-29
Abstract: 662,075. Closed stoves. RADIATION, Ltd. March 2, 1950. [March 29, 1949; Sept. 2, 1949] Nos. 8468/49 and 22765/49. Class 126. A stove comprises a closed fuel chamber adapted to admit downflow of air below which is a grate through which air flows upwardly and across which air flows horizontally to a combustion products passage extending from the lower end of the fuel chamber, a passage conveying secondary air to the free surface of the fuel adjacent the inlet to the combustion products passage, a baffle associated with the grate being disposed below these passages to prevent air other than secondary air entering the combustion products. The grate b is situated at the base of a fuel chamber a lined with firebrick. Primary air passes upwardly through the grate b and horizontally across the grate b to a combustion products passage g, secondary air being supplied from an air chamber above the fuel cnamber a through a passage h to the free surface of the fuel adjacent the combustion products passage g. Primary air is prevented from entering the combustion products passage, e.g., by a baffle i, adjacent the grate b. Primary air may also be supplied from the air chamber j to a point beneath the surface of the fuel through a passage m. An opening n between the air chamber j and the fuel chamber a allows the entry of a small amount of air to keep the space above the fuel adequately purged. The opening n is partially closed by a slidable damper q connected with a slidable damper r closing an opening o between the air chamber and the flue p above it. Both dampers q, r may be withdrawn simultaneously to allow fine ash deposited in the flue p to fall into the fuel chamber a.
Patent GB-418211-A (GB)
Title: Improvements relating to invertase preparations
IPC: C12N9/26
Filed: 1933-03-21
Abstract: An invertase preparation is obtained by releasing the enzyme from yeast cell tissues, separating the liquid, acidifying it and adjusting the acidity to a pH of about 3,5 to 6,5 by the addition of an alkaline substance, preferably insoluble in water. Yeast cells may be killed by the addition of toluene, benzene, xylenes, diethylene oxide, glycerine and like solvents, and autolysis is then carried out, preferably in presence of an alkaline substance such as sodium carbonate, ammonia, sodium bicarbonate, diammonium hydrogen phosphate, trisodium phosphate, potassium carbonate or bicarbonate &c., and at about 30 DEG  C.  The product is then filtered with the assistance of kieselguhr or Filter-Cel (Registered Trade Mark), and the filtrate treated with a strong acid such as phosphoric, hydrochloric or sulphuric acid, with the addition of decolourizing carbon, such as that known under the Registered Trade Marks "Darco" and "Norit," and the acidity finally adjusted with the addition of calcium carbonate, sodium bicarbonate, or magnesium carbonate &c. Finally, the invertase solution obtained may be mixed with a suitable preservative, e.g. ethylene glycol, glycerol, mannitol cane sugar or erythritol.  In the addition of solid carbonates to adjust the acidity, the carbon dioxide is eliminated by aeration of the solution, and the preferred pH is from 4,5--6,5.  The Specification as open to inspection under Sect. 91 includes the production of enzyme preparations from cell tissues broadly. This subject-matter does not appear in the Specification as accepted.
Patent GB-1081865-A (GB)
Title: Improvements in or relating to implements for the lateral displacement of crop lying on the ground
IPC: A01D78/00
Filed: 1965-04-20
Abstract: 1,081,865. Haymaking machines. C. VAN DER LELY N.V. April 20, 1965 [April 29, 1964], No. 8572/67. Divided out of 1,081,864. Heading A1F. A tractor-mounted rake-wheel type haymaking machine comprises a horizontal frame-beam 1 carrying connections 12, 15 for the lower hitch-links at its ends and having two rearwardly-divergent upwardlyextending frame-beams 2, 3 connected to it to carry at their ends a second horizontal frame-beam 4 oblique to the travelling direction and having mountings for rakewheels 36, a third horizontal beam 9 being mounted between the divergent beams so as to extend parallel to the first beam and at a higher level and being provided with a connection for the top hitch-link. The top hitch-link connection is indirect and includes pivoted spring-loaded links 20, 21 which enable the whole frame to be pivotally movable about the lower hitchpoints 12, 15. The rake-wheels are carried by mountings 32 pivoted to stub-axles (Fig. 3, not shown) projecting downwardly below the beam 4. Each mounting includes a pivoted crank carrying the rake-wheel and suspended by a spring from a fixed part of the mounting. Each mounting can be swung through nearly 90 degrees about the axis of the stub-shaft and retained in this position (dotted) by a pin 46 and apertured sector-plate 43.
Patent GB-452969-A (GB)
Title: Improvements in the manufacture of silk fabrics
IPC: D03D11/00
Filed: 1936-03-24
Abstract: Threads, each comprising a plurality of raw silk filaments, are partly degummed by treatment for an hour in a 7 per cent soap solution at 60--80 DEG  C., and may then be softened by immersion in an emulsion of peanut oil, which oil has been treated with soda lye and neutralized with sulphuric acid.
Patent GB-1241442-A (GB)
Title: Improvements in or relating to gelation apparatus
Inventor: WACE PETER FREDERICK
IPC: B01J8/20
Filed: 1968-02-22
Abstract: 1,241,442. Forming gel spheres. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 28 April, 1969 [22 Feb., 1968], No. 8780/68. Heading B5A. Solidified spheres, of a sol or a solution, are formed from injected drops thereof which form with an outer solidified coating on falling through a rising column of an immiscible solidifying liquid in laminar flow, whereby drop coalescence is avoided, into a region of higher liquid flow wherein they are fluidized to comtinue their solidification, whereafter the flow in the region is reduced to permit the spheres to fall to a lower part of the column for removal therefrom. The liquid inlet to a cylindrical vessel comprises a perforated base-plate of downwardly directed conical form, leading to an outlet for the spheres, and which may be open or closed depending on the liquid velocity therethrough. One or more regions of higher liquid flow are produced by mandrels of upwardly pointed conical form, which are supported clear of the vessel walls by a spider which permits the spheres to fall between the vessel wall and the spider when the flow is reduced. Where more than one mandrel is provided at different heights the flow around only one thereof at a time may be reduced, by opening a by-pass pipe therearound.
Patent GB-890836-A (GB)
Title: Improvements in or relating to transistor amplifiers
IPC: H04N5/16
Filed: 1958-03-19
Abstract: 890,836. Transistor circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 19, 1958 [March 21, 1957], No. 8824/58. Class 40(6). [Also in Group XL(b)] The D.C. level at the input of a transistor circuit having an A.C. input coupling is restored by obtaining a D.C. restoring voltage from the signal and applying to an impedance in the input circuit of the transistor, the impedance being additional to any input coupling impedance. Fig. 4 4 shows a pulse or video amplifier in which the D.C. component lost in the R.C. input coupling is restored by providing, an additional winding 12 on the output transformer, rectifying the output voltage of the winding and applying the rectified voltage to a capacitor 13 in the base circuit. The output voltage of the winding should be made approximately equal to the input voltage of the amplifier and the charge and discharge time constants of the capacitor should be similar to the corresponding time constants of the input circuit. The leak resistor 18 may be connected either directly across the capacitor 13 or, as shown, across the rectifier. In the latter case positive feedback occurs through resistors 19 and 18. The winding 12 is poled so as to invert the output signal but where this is unnecessary the rectifier may be connected through a capacitor and a potentiometer to the output circuit (Fig. 3 not shown). In an alternative circuit (Fig. 5 not shown) the rectifier is coupled to an additional winding on the input transformer instead of on the output transformer. Fig. 6 shows a blocking oscillator employing the invention, in which triggering pulses are applied through an emitter follower circuit 31. The rectifier circuit 11, 13, 18 provides a bias to the base such as to maintain the effective base emitter bias constant. It is stated that the capacitor resistor time constant circuit in the compensating circuit may be replaced by an inductor resistor circuit.
Patent GB-447223-A (GB)
Title: Improvements in and relating to bean trimming instrument
IPC: A47J17/06
Filed: 1935-03-21
Abstract: 447,223. Stringing beans. COUGHLAN, G. N., 535, Valley Road, West Orange, New Jersey, U.S.A. March 21, 1935, No. 8846. Convention date, March 21, 1934. [Class 28 (ii)] [See also Group I] A bean trimmer of the kind having a handle with a through aperture for the passage of the bean, a pair of stringing knives mounted above said aperture on a pair of resiliently displaceable beanguide members, and a number of slicing knives extending across the aperture, is characterized by the slicing knives, which form part of a grid-like member, being locked within a recess in the walls of the aperture by the bean-guide members. As shown in Figs. 1, and 4, the parts 42 which carry the complementary parts 48 of the cup-shaped bean-guide are slidable on the part 30 of the handle, which part is enlarged at 38 to form stop means for limiting the mutual approach of the guide parts 48. Hooks 50 on the parts 42 are connected by tension springs 52 which tend to maintain the parts 48 at their closest position. The stringing knives 58 are arranged across the bean-guide and are positioned in flat grooves in posts 46 in which they are secured by spring clips 24. The blades are arranged to slope in opposite directions. The slicing blades 34 are moulded in a frame 36. In Fig. 7, the bean-guide parts 108 are carried on arms 110 urged together by a spring 120 and pivoted by square apertures 114 engaging, with play, square pegs 112. The square pivot connection imposes limits of possible swing on the arms 110. A spring wire clip maintains the arms 110 on the pegs 112. In both modifications, a topping knife 22 or 102 is secured in flat grooves in horns on the end of the handle structure. The knife is retained in the grooves by separate or integral spring clips.
Patent GB-944843-A (GB)
Title: Process for the manufacture of 2-(2-aminoaryl)-4:5-arylene-1:2:3-triazole-1-oxides
Filed: 1960-03-14
Abstract: The invention comprises compounds of the formula: <FORM:0944843/C2/1> where A and B are substituted or unsubstituted radicals of the benzene or naphthalene series; and their preparation by coupling a diazotised o-nitroamine of the benzene or naphthalene series with a primary amine of the benzene or naphthalene series (or the N-sylphonic acid or N-methanesulphonic acid derivative thereof), and treating the diazo-compound with a solution of sodium dithionite at 20-80 DEG C. and pH 6-14, and splitting off the N-sulphonic acid group (if present) by treatment with mineral acid, or the N-methanesulphonic acid group (if present) with caustic alkali. Substituents which may be present in the A ring include halogen, trihaloalkyl, alkyl, aryl, alkoxy, aryloxy, cyano, carboxylic acid, carboxylic acid amide, carboxylic acid ester, sulphonic acid, sulphonic acid amide, sulphonic acid ester, alkylsulphonyl, aralsulphonyl, alkylamino, arylamino, acylamino and acyl; substituents present in the B-ring include alkyl, alkoxy, acylamino and sulphonic acid.
Patent GB-254406-A (GB)
Title: Improvements in or connected with electric fires
IPC: F24C7/06
Filed: 1925-04-06
Abstract: 254,406. Berry, H. H., and Reid, J. W. April 6, 1925. Wire resistances mounted on flat surfaces. - The heating element of an electric fire comprises a bar-like insulator a built from a number of sections c and carrying a resistance wire, for example, in grooves in the sections c, a metal back b for the sections c, projecting lugs d behind the back b for mounting the element in the fire independently of its electric connections, and electric connections to the wire comprising separate flexible leads g one at each end of the element and each carrying a plug h or blade i, the plugs &c. co-operating with sockets or like terminals spaced apart at the back of the fire at positions remote from the element. The element is removable, and, if the leads g have terminals h, is of different form, must be correctly replaced to be connected. The lugs d may be pressed out of the back b or may have play to facilitate fitting into slots in the fire. The leads g may be connected to terminals f connected to the ends e of the resistance or may be a continuation of the wire e which may then be folded to and fro and covered by beads &c. The sections c may be of earthenware or clay and may be bolted together. Specification 12924/15 is referred to. The Provisional Specification describes modifications in which the ends of the bolts through the insulator sections engage sockets or holes in the frame of the fire and in which the lugs d receive screws fitted to the frame.
Patent GB-309292-A (GB)
Title: Improvements in or relating to milk pails
IPC: A01J9/00
Filed: 1928-03-26
Abstract: 309,292. Dairy Supply Co., Ltd., and Darbishire, H. March 26, 1928. B u c k e t s and pails ; handles.-The bail carrying handle of a milk pail is adapted to serve as a seat during the milking operation. The sides of the handle are bent, as shown, so that the lower ends can rest on the inclined top A<2> of the pail and the upper ends incline upwardly towards the cross-piece B<1>. Pads B<3> of leather &c. may be provided on the lower ends of the handle or on the top of the pail. The handle may be fixed or detachable. The pail has a guard D and may be fitted with a filter.
Patent GB-927984-A (GB)
Title: Improvements in or relating to gas lighters
Inventor: ROGERS LEONARD GILBERT
IPC: F23Q2/52
Filed: 1962-03-09
Abstract: 927,984. Cigarette lighters. ROGERS Inc. March 9, 1962, No. 9219/62. Class 75 (3). [Also in Group XXIX] A cigarette lighter fuelled with liquefied gas comprises a centrally bored resilient washer 31 housed in a sleeve 22 and compressed by a control member 25 which screws into the sleeve 22 and which incorporates a reciprocating valve pin 21 adapted to seat over a bore 32 of the washer 31. The valve pin extends through a burner tube 28 and is pushed down to close the bore 32 of the washer by a spring element on the lighter cap. A step 38 on a shoulder of the pin 21 provides a gas passage into the burner tube. The control member 25 is rotated by a wheel 27 on the head of the member. The sleeve 22 has a top flange 23 and screws into the top of the lighter. A metal thimble 33 driven into the bore of the sleeve has a bevelled hole housing a bored thermally stable disc 34 made of sapphire or garnet.