baber/WOPTO huggingface dataset:
Patent GB-447226-A (GB)
Title: Process for the manufacture of new heterocyclic compounds
IPC: C09B29/42
Filed: 1935-04-17
Abstract: Bactericidal azo dyestuffs are manufactured by diazotizing amino - compounds of the pyridine or quinoline series, the amino group of which does not possess tautomeric character, and which contain in addition to the amino group at least one other substituent, and coupling with 3 : 5-diaminopyridine or its halogen, hydroxy, alkoxy or alkyl substitution products.  In an example, 2-butyloxy-5-aminopyridine is diazotized and coupled with 3 : 5-diaminopyridine.  Samples have been furnished under Sect. 2 (5) of the following dyestuffs: (a) 2-methoxy-5-aminopyridine --> 3 : 5-diaminopyridine; (b) 2-chloro - 5 - aminopyridine --> 3 : 5-diaminopyridine; (c) 2-ethoxy-5-aminopyridine --> 3 : 5-diaminopyridine; (d) 5-amino-8-hydroxyquinoline --> 2-hydroxy-3 : 5-diaminopyridine.  2-Butyloxy-5-aminopyridine is obtained by reacting sodium butylate with 2-chloro-5-nitropyridine and reducing the resulting 2-butyloxy-5-nitropyridine.
Patent GB-527796-A (GB)
Title: Improvements in high-pressure metal-vapour electric discharge devices
IPC: H01J17/04
Filed: 1939-04-20
Abstract: 527,796. Discharge lamps. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand Ges. fur Elektrische Gluhlampen). April 20, 1939, No. 11920. [Class 39 (i)] A high-pressure metal vapour lamp, the partial pressure of the mercury in which is not less during operation than three atmospheres, contains a refractory body to be heated to incandescence by the discharge, which body consists of a tube the axis of which is substantially in the straight line joining the electrodes and the diameter of which is substantially greater than the distance between the electrodes ; the ratio of the power absorbed in watts to the distance between the electrodes in centimetres is not less than 100. Preferably this ratio is over 300 and the pressure is over 30 atmospheres, the distance between the electrodes being between 2 and 5 mm. Fig. 1 shows such a lamp enclosed in an outer jacket 2 which may be coated with fluorescent material. One of the electrodes 3 is vertically above the other and the incandescent tube 5 is between them, in other forms it surrounds the end of the upper electrode and may be attached thereto.
Patent GB-800122-A (GB)
Title: Improvements in the production of hollow articles from, or the coating of articles with, polyvinyl chloride containing softener
IPC: B05D1/18
Filed: 1956-04-19
Abstract: An article, e.g. a glass bottle, is dipped into a paste of polyvinyl chloride containing at least one softener, the coated article is dipped into a heated water-soluble liquid to effect preliminary gelatinization, and then the gelatinization is completed.  The water-soluble liquid may be a polyalcohol, which may be at 100-150 DEG  C. to effect the preliminary gelatinization. After preliminary gelatinization the coated article may be rinsed with water to remove adherent polyalcohol and then completely gelatinized in a tunnel kiln or a cabinet at a temperature above 160 DEG  C., e.g. 160-180 DEG  C. Alternatively the final gelatinization may be effected in the bath of polyalcohol that was used to effect preliminary gelatinization, by raising the temperature of the bath to 160-180 DEG  C.ALSO:A mould is dipped into a paste of polyvinyl chloride containing at least one softener, the coated mould is dipped into a heated water-soluble liquid to effect preliminary gelatinisation, and then the gelatinisation is completed.  The water soluble liquid may be a polyalcohol, which may be at 100-150 DEG C. to effect the preliminary gelatinisation.  After preliminary gelatinisation the coated mould may be rinsed with water to remove adherent polyalcohol and then completely gelatinised in a tunnel kiln or a cabinet at a temperature above 160 DEG C., e.g., 160 DEG -180 DEG C. Alternatively the final gelatinisation may be effected in the bath of polyalcohol that was used to effect preliminary gelatinisation, by raising the temperature of the bath to 160 DEG -180 DEG C.
Patent GB-782767-A (GB)
Title: Improvements in the preparation of printing-sleeves by electro-deposition
IPC: B41C1/18
Filed: 1955-04-25
Abstract: 782,767. Printing surfaces. ABELL, G. E. B., TILLEY, D. W., PRICE, P. R., POWELL, J. A., BENNETT-, and FORSTER, W. S. April 25,1956 [April 25,1955; Aug. 16, 1955], Nos. 11931/55 and 23637/55. Class 100(2) A method of preparing a printing-sleeve comprises the steps of (a) forming the design on a master cylinder, (b) forming a negative replica by electro-depositing a sleeve on the master cylinder, (c) separating the mother from the master by subjecting them to such temperature - change as will produce by differential thermal expansion (or contraction) a clearance sufficient to permit removal by relative axial movement, (d) forming a printing sleeve or printer by electro-depositing a sleeve on the inner face of the replica and (e) separating the printer from the replica by differential thermal expansion as in step (c). The design is produced by known methods on a steel master cylinder which is hollow and provided with steel end plate. The steel master is electrolytically coated with copper to form the replica. After coating, the master 12 and replica 11 are placed in an oven 13 heated by element 14. The oven is sealed so that an inert gas can be introduced to prevent any risk of oxidation. Coolant may be circulated within the master 12 by pipes 19. As the replica 11 expands more rapidly than the master 12 the two cylinders become separated and the master may then be withdrawn from the replica by rotation of a nut 16 on a spindle 15 extending through the end plates 18 of the master 12. Alternatively the different expansion can be affected by placing incandescent elements around the mother, by placing the replica and master between the ends of the limbs of a U-shaped soft-iron core on which an energizing coil is wound so that the assembly is heated by induced eddy currents or by placing the replica and master around a soft-iron core so as to form a short-circuit secondary of a transformer so that heating is affected by the low-voltage high current induced in the master. After separating the copper replica a nickel printing sleeve is deposited electrolytically on the inner face of the replica. After deposition separation of the sleeve is affected by differential expansion in the same manner as separation of the master and the replica. After separation the bore and ends of the sleeve are machined to the required dimensions and the nickel printing cylinder is preferably chromium plated. The method may be used for producing intaglio and letter-press printing surfaces.
Patent GB-970814-A (GB)
Title: Improvements in or relating to printed circuits
Inventor: UNDERWOOD JOHN DUCKLES
IPC: H05K1/02
Filed: 1963-03-26
Abstract: 970,814. Stencils. STANDARD TELEPHONES & CABLES Ltd. March 26, 1963, No. 11936/63. Heading B6C. In a method of printing a diagram of the circuit on the reverse face of a phenolic or epoxy fibre glass laminate bearing a printed circuit pattern the reverse face is coated with Kodak P.C. resist or Kodak metal etch resist, is exposed via a negative of the pattern to be printed and is then developed. The laminate is then immersed in a solution of xylene saturated with the dyestuff waxoline blue A.S., the resist being subsequently removed by washing. The development may be effected with a solution of trichlorethylene at a temperature of about 35‹ C. and the immersion'in the dyestuff may be for between 5 and 15 seconds.
Patent GB-200266-A (GB)
Title: Water tap
IPC: E03C1/04
Filed: 1922-04-28
Abstract: 200,266. Frei, J., (Richt, G., and Hiemer, C.). April 28, 1922. Lift valves; closure members; outlets. - A water tap of the kind which includes an auxiliary check valve which shuts off water when the main valve is removed, comprises an inlet part a the discharge end of which is screwed internally and externally to receive a seating bush c and a discharge nozzle f. A check valve b with downwardly projecting stem, is adapted to close upon the upper end of the part e, and a loose valve g on the lower end. The valve is opened by slightly unscrewing the part f, whereupon the valve g falls, and is followed by the valve b, but not sufficiently far to close the latter. If the pin s is removed, the part f with the valve g may be removed internally for repairs etc.; the valve b remains on its seat and closes the supply passage. An antisplash device i may be fitted in the nozzle. Specifications 3067/98 and 22598/10 are referred to.
Patent GB-255181-A (GB)
Title: Tampon for use during menstruation
IPC: A61F13/20
Filed: 1925-05-08
Abstract: 255,181. Mallinson, M. G. May 8, 1925. Catamenial appliances. - The appliance comprises a tampon of cotton wool enclosed in gauze and provided at one end with a loop of gauze for the purpose of withdrawal. It is neither washable nor medicated.
Patent GB-965815-A (GB)
Title: Copolyamide filaments and process for their production
IPC: D06P3/24
Filed: 1962-03-29
Abstract: Filaments are made by extruding a copolymer of hexamethylene adipamide and hexamethylene isophthalamide, containing less than 10% by weight of the isophthalamide, preferably from 5-9%.  The copolymer may be made from an aqueous solution containing a salt component consisting of 92% by weight hexamethylene diammonium adipate and 8% hexamethylene diammonium isophthalate to which is added 0.03% excess hexamethylene diamine as a viscosity stabilizer.ALSO:Copolyamide filaments of enhanced dyeability are made by extruding a copolymer of hexamethylene adipamide and hexamethylene isophthalamide containing less than 10% by weight of the isophthalamide, preferably from 5-9%. A filament comprising at least two component sections in eccentric or concentric relationship may be extruded, one section comprising the said copolymer and another section comprising a homopolyamide, especially polyhexamethylene adipamide.  Example 1 illustrates the melt-spinning of the copolymer to form filaments, which are quenched, steamed, contacted with a liquid finish and wound up. Subsequently the wound-up filaments are drawn four times their as-spun length. The filaments are dyed with Perlon Fast Red 3BS at 55 DEG C., and take up the dye at 9.7 times the rate of take up of the same dye with polyhexamethylene adipamide filaments. Filaments may also be dyed with C.1.  Acid Blue 113 at 80-90 DEG C. Potentially crimpable composite filaments may be made by concurrent extrusion of the copolymer melt and a homopolyamide melt to form eccentric (e.g. side-by-side) or concentric (e.g. core-and-sheath) composite filaments.  In Example III such a side-by-side filament made by melt-spinning is quenched with air, and wound up.  Subsequently the wound-up filaments are drawn to a ratio of 2.66, relaxed 11% in a steam tube at 175 DEG C., interlaced with an air jet and wound up. The filaments develop crimp on subjection to boiling water for about 15 minutes.  The copolymer may be made from an aqueous solution containing a salt component consisting of 92% by weight hexamethylene diammonium adipate and 8% hexamethylene diammonium isophthalate to which is added 0.03% excess hexamethylene diamine as a viscosity stabilizer.
Patent GB-115558-A (GB)
Title: Improvements in Apparatus for Indicating Continuously the Ratio of the Totals of Two Independently Measured Quantities, taken from the same Instant of Time.
IPC: G06G1/14
Filed: 1917-08-23
Abstract: 115,558. Guillemin, A., and Compagnie des Forges d'Audincourt et DepÚndances. July 21, 1917, [Convention date]. Differential speed indicators; measuring average speed over interval.-The ratio of two quantities, the totals of which from the epoch of last setting- to-zero are summed by meters independently, is continuously indicated by an apparatus comprising two screwed spindles b, d at right-angles, driven by the meters respectively, the one spindle d being moved as a whole parallel to the axis of the other spindle b which carries a non- rotatable nut a for the purpose. Rotation is communicated to this second spindle d through bevel gearing f from a member feathered to slide upon and turn with a spindle g driven by one of the meters, both meter-driven spindles having squared ends p, n to admit of resetting the parts. The ratio is indicated by an arm h pivoted at a point i upon the axis of the first screw, and positioned by a nut e upon the second screw to read upon a scale j, placed on a frame k at a distance from the pivot equal to one unit of scale value. Specification 115,354, [Class 97 (iii), Thermometers &c.], is referred to
Patent GB-1193815-A (GB)
Title: Improvements in or relating to Nuclear Reactors
IPC: G21C13/028
Filed: 1969-03-07
Abstract: 1,193,815. Cooling reactors. SNAM PROGETTI S.p.A. 7 March, 1969 [8 March, 1968], No. 12288/69. Heading G6C. A sodium cooled reactor is mounted in an inner housing 2, spaced from the outer housing. 1 by the sealing rings 3. Liquid sodium is received at its inlet 6 and flows through the core to the outlet 7. The rings 6 are formed of metal and are urged against the projection 8 so as to allow for different rates of thermal expansion between the housings 1, 2.
Patent GB-1127054-A (GB)
Title: Improvements in or relating to high speed computing systems
Inventor: JARVIS DENIS BRIAN
IPC: G06F17/12
Filed: 1966-03-21
Abstract: 1,127,054. Data processing systems. MULLARD Ltd. 21 June, 1967 [21 March, 1966], No. 12298/66. Heading G4A. A computer, or peripheral machine for a known computer, comprises a plurality of serial stores connectible under centralized micro-programme control with a plurality of processors to perform simultaneously similar operations on a plurality of numbers contained in the serial stores. The serial stores may be recirculating quartz delay lines, a magnetic drum or tape loop, or a serially-operated ferrite thin film or core store. The number of words in the serial stores may be varied using selected tapping points on the delay line or selected heads along the magnetic drum or tape. The numbers are in signed floating-point form, negative numbers being in twos-complement form. Addition of two numbers in a given processor is done by subtracting the exponents in serial form to feed a shift register which (according to the sign of the difference) gates the larger exponent from one of two shift registers which also received the two exponents. This gated exponent is the exponent part of the unnormalized sum. The mantissa corresponding to the larger exponent is gated to a further shift register, and the other mantissa to a tap selected through a decoder by the exponent difference referred to on another shift register. The mantissµ shift registers feed a serial adder to give the mantissa part of the unnormalized sum. The unnormalized mantissa is shifted into a shift register as a control count is decremented to zero. Each digit is tested against the preceding as it is entered and on a change first being detected, the current value of the control count is inserted into a shift register and later subtracted from the unnormalized exponent serially, to give the final exponent. The final mantissa is obtained by zeroizing some digits of the unnormalized mantissa while passing the sum back to one of the serial stores. Round-off is by setting the least significant mantissa digit equal to one. Multiplication of two numbers in a given processor is by adding one mantissa (passed into a shift register) into a parallel adder under control of successive pairs of digits of the other mantissa, the result mantissa being held in a shift register. The result exponent is obtained by serial addition of the operand exponents, the result exponent being held in another shift register. Normalization is done by mantissa shift with exponent adjustment and round-off. Matrix addition (and subtraction), matrix multiplication, and iterative solution (using an overrelaxation factor) of simultaneous linear equations and Laplace's equation (the latter using a tag bit for boundary values) are described. Some intermediate and final results are stored in the serial stores.
Patent GB-1388134-A (GB)
Title: Scanner apparatus for optically discernible characters
IPC: G06K7/10
Filed: 1972-03-16
Abstract: 1388134 Optical character reader ZELLWEGER USTER Ltd 16 March 1972 [22 March 1971] 12338/72 Heading G4M The subject matter of this Specification is substantially the same as that of Specification 1,388,131, but the claims relate to an optical scanner having a movable component for projecting a light beam so as to scan a character, and a cylindrical lens for focusing the scanning beam from the movable component.
Patent GB-1060683-A (GB)
Title: Improvements in or relating to twine knotting mechanism for a hay baler
IPC: A01F15/14
Filed: 1964-03-24
Abstract: 1,060,683. Knot-tying devices. INTERNATIONAL HARVESTER CO. March 24, 1964 [May 10, 1963], No. 12339/64. Heading D1C. The twine knotting mechanism of a hay baler comprises a pair of discs 4,5 and twine gripping means of which part 18 engages the outside of one of the discs 4,5 to retain the twine resiliently during operation of the mechanism. The twine holder assembly (3) Fig. 1 including spring 18, twine knotter arm (2) and twine knife 14 are assembled on a frame 15 with a hub (16) mounted on drive shaft (30). Assembly (3) comprises a pivoted keeper blade 13 mounted between the discs 4,5 and offset from the spindle 6 carrying them. Spring 18 is mounted beside twine knife 14 and they extend respectively along the surfaces of discs 5 and 4. Discs 4,5 are similar each having two pairs of radial slots diametrically opposite one another each pair comprising a narrow slot 9 or 11 to hold the free end of the twine during bale forming and a wide slot 10 or 12 for holding the spool end of the twine during knot tying. Spring 18 grips twine against disc 4 between slots 10 and slots 11.
Patent GB-1218873-A (GB)
Title: Organosilicon sulphides
IPC: C07F7/18
Filed: 1969-03-10
Abstract: 1,218,873. Organosilicon sulphides. DOW CORNING CORP. 10 March, 1969 [11 March, 1968], No. 12420/69. Heading C3S. Organosilicon sulphides of the formula (R) 3 Si-C(R<SP>1</SP>) 2 .C(R<SP>1</SP>) 2 -S-R<SP>11</SP>, wherein R represents a monovalent hydrocarbon radical free of aliphatic unsaturation, an alkoxy radical, an acyloxy radical, an aryloxy radical or a hydrocarbonthio radical, R<SP>1</SP> represents hydrogen or a hydrocarbon radical free of aliphatic. unsaturation, R<SP>11</SP> represents hydrogen, -CN, -COY, -CS.OY, -CS.SY, -CON(Y) 2 , -CSN(Y) 2  or a monovalent hydrocarbon radical free of aliphatic unsaturation, and Y represents a C 1-6  monovalent hydrocarbon radical free of aliphatic unsaturation, are prepared by reacting compounds of the formula (R) 3 Si-C(R<SP>1</SP>) 2 .C(R<SP>1</SP>) 2 -X, wherein X is chlorine, bromine or iodine, with a compound of the formula R<SP>11</SP>SM, wherein M is an alkali metal or alkaline earth metal.
Patent GB-310283-A (GB)
Title: Improvements in apparatus for cooling coke
IPC: C10B39/02
Filed: 1929-04-22
Abstract: 310,283. Humphreys & Glasgow, Ltd., (Assignees of Haug, J. S.). April 21, 1928, [Convention date]. Cooling discharged materials.-In coke-cooling apparatus of the kind in which a stream of cooling gas is circulated through the coke chamber and a steam generator, a horizontal fire-tube boiler 12 is disposed above and external to an inclined cooling chamber 7 which is fitted with a cokesupporting surface 3 formed of overlapping plates 4. The circulation of the gas is effected by a fan 14 which is connected on the outlet side to the space 6 below the surface 3 and on the intake side to the flue 13 into which the fire-tubes 11 of the boiler deliver. The chamber 7 is inclined at an angle somewhat greater than the angle of repose of the coke and is provided with gas-tight charging and discharging doors 8, 9. The boiler 12 is suspended bv hangers from cross-girders 24 carried by vertical beams 23, while dustcollecting pockets 20, 21, 22 are arranged in the path of the circulating gas stream.
Patent GB-721563-A (GB)
Title: New or improved apparatus for determining the size and fitting of boots, shoes, slippers, sandals and the like required for any particular individual
Inventor: WESTWOOD JOHN FREDERICK
IPC: A43D1/02
Filed: 1952-05-19
Abstract: 721,563. Shoe-fitting apparatus. LENNARDS, Ltd. March 12, 1953 [May 19, 1952], No. 12647/52. Class 17 (3). A shoe-fitting apparatus comprises a series of impressions 1 made in separate elements 8 which are arranged in a frame 2 with divisions 3, 4 to simulate a ladder. The impressions are moulded in the element which may be of plaster of paris, cement, rubber, especially sponge or foamed latex, synthetic resin, aluminium or other metal conveniently by use of the actual last on which the shoes are made. The shoe sizes may be marked on the frame or on the separate elements, and fittings may be indicated by lines drawn on the base of the impressions. Modified ways of mounting the elements are described such as in a framework forming steps or in both sides of a foldable frame. Alternatively, a series of impressions may be made in a single base comprising a one-piece moulding.
Patent GB-784098-A (GB)
Title: Improvements in or relating to apparatus for and methods of refining paper or like pulp
Inventor: JR EDWARD HENRY CUMPSTON
IPC: D21D1/30
Filed: 1955-05-02
Abstract: 784,098. Refining, de-watering, and rolling paper pulp. JONES & SONS CO., E. D. May 2, 1955, No. 12656/55. Class 96. Paper pulp is fed through an inlet 21 into the space between two discs 1, 2 where it is refined without defibration, and is de-watered, and the fibres, e.g. cotton linters, formed into rolls by the action of teeth or grooves on face-plates 3, 4 of the discs 1, 2; the disc 1 being on a driven shaft 6, and the disc 2 being eccentrically, mounted on a hollow shaft 11 so that by turning the shaft 11 with the aid of a screw 14 and an arm 13, the eccentricity relatively to the disc 1 may be adjusted. There may be screw-adjustment 10 of the spacing apart of the discs. In a modification, the disc grooves are of spiral form.
Patent GB-271634-A (GB)
Title: Improvements in absorption refrigerating apparatus
IPC: F25B17/06
Filed: 1926-05-18
Abstract: 271,634. Berlin, D. W. May 18, 1926. Refrigerating, absorption machines for.-The pipes or channels 3, 4 connecting the generatorabsorber 1 and the condenser-evaporator 2 of apparatus working on the reversing system open into the vessels near the rim parts that are close together, as shown. The pipes dip to the bottoms of the respective vessels so that columns of liquor and liquefied refrigerant form therein. The condenser-evaporator may have a well 9 for ice-making, and vertical or horizontal internal flanges to increase the cooling-effect. The vessel 2 is placed in a cooling-tank 10 while the vessel 1 is being heated and after generation is complete the vessel 2 is placed in a refrigerator-box and the vessel 1 in the cooling-tank 10. By means of a handle 14 the apparatus may be turned to empty the contents of the evaporator into the generator or the liquor from the generator may first be run into the evaporator to dissolve any solids deposited on the walls, and then run back again into the generator. Reference has been directed by the Comptroller to Specifications 3157/77, 16293/88 and 234,110.