baber/WOPTO huggingface dataset:
Patent GB-1496393-A (GB)
Title: Determination of phosphorus
IPC: G01N21/77
Filed: 1975-04-17
Abstract: 1496393 Phosphorous determination PIERCE CHEMICAL CO 17 April 1975 [23 April 1974] 15799/75 Heading G1B An aqueous solution comprises a reducing agent for reducing a phosphomolybdate complex to form molybdenum blue colour and a water-soluble hydrocarbon amine/ethylene oxide adduct, or a quaternary derivative thereof, which is cationic in acid solution and contains lipophilic and hydrophilic non-ionic groups, the adduct or quaternary derivative thereof being present in an amount sufficient to prevent protein precipitation when the solution contains a protein, molybdic acid and a phosphomolybdate complex. The adduct or quaternary derivative thereof preferably has the Formula wherein X<SP>m</SP> - is a non-interfering anion which does not effectively compete with phosphorous for molybdenum or does not promote interference with the blue colour of a phosphomolybdate complex; m is 1, 2 or more; R is a lipophilic group containing from 6 to 28 carbon atoms; R' is H or -CH 2 -CH 2 -(OCH 2 CH 2 ) x -O-CH 2 -CH 2 OH; R" is H or a lipophilic group containing from 1 to 10 carbon atoms; x and y are integers with the sum of x and y being from 5 to 30; and n is 0 or 1. The aqueous solution may be used in the spectrophotometric determination of inorganic phosphate in samples such as sera and urine.
Patent GB-312240-A (GB)
Title: Improvements in and relating to electrical windings
IPC: H01B3/18
Filed: 1929-05-22
Abstract: 312,240. British Thomson-Houston Co., Ltd., (Assignees of Turner, H. W.). May 22, 1928, [Convention date]. Insulation.-The armature coils of motors for railway-trucks, mills &c. are secured by embedding them in a plaster insulating-composition, a suitable composition consisting of 60 per cent asphaltum and 40 per cent soapstone. The windings are laid in the slots 14, layers of winding alternating with layers of composition, and the ends of the windings are packed in composition in the spaces between the armature core of a fan 17 at one end and the commutator 16 at the other. The whole is secured by wire bindings 21, 22. The composition is then hardened by baking. The coils may be of wire treated as described in Specification 179,460, [Class 36, Electricity, Conducting &c.].
Patent GB-144728-A (GB)
Title: Improvements in or relating to the extracting of metals from metallic compounds, ores, foundry products, furnace dust and the like
IPC: C22B1/08
Filed: 1920-06-11
Abstract: 144,728. Krupp Akt.-Ges. Grusonwerk, F. June 3, 1919, [Convention date]. Distilling lead, silver, copper, bismuth, molybdenum, and other metals. - Ores, concentrates, furnace dust, and the like, preferably finely divided, are mixed with sodium chloride, preferably in finely divided form or in solution, and the mixture is heated to the volatilization temperature of sodium chloride, whereupon metals are volatilized and may be collected. The process is applicable, for example, to the treatment of leadzinc ores, lead and silver being volatilized, and to the extraction of other metals such as copper, bismuth, and molybdenum.
Patent GB-1122680-A (GB)
Title: Piston-and-ring assembly
Inventor: CROSS ROLAND CLAUDE
IPC: F16J9/20
Filed: 1966-04-12
Abstract: 1,122,680. Piston packing. CROSS MFG. CO. (1938) Ltd. 18 Jan., 1967 [12 April, 1966], No. 15909/66. Heading F2T. A piston and ring assembly comprises at least two outer split rings 48 and at least two inner split rings 49 of triangular or truncated triangular cross-section housed in a groove in the piston 1 and respectively tapering towards and away from the piston axis, the outer rings alternating with the inner rings, the sides 6, 7 of the groove being inclined to the piston axis and the rings being outwardly springing, whereby the axially endmost rings are urged against the sides of the groove and the outer rings 48 are urged against the cylinder wall 2. As shown in Fig. 1 the sides 6, 7 of the groove are parallel to one another. In a modification, Fig. 2 (not shown), there are four outer rings (48) and three inner rings (49) and the sides of the groove diverge outwardly from the piston axis. The rings may be helical.
Patent GB-240544-A (GB)
Title: Improvements in or relating to apparatus for distributing liquid bitumen or the like
IPC: E01C19/16
Filed: 1924-07-02
Abstract: 240,544. Wilkins, W. P. July 2, 1924. Surface treatment with liquid materials.-Tar spraying machines. The squeegee or like device 13 for spreading the tar surrounds the outlets from the tar-delivery pipes 32 in order to prevent the tar flowing away from the track of the spreader. The spreader extends without a break behind and at the sides of the point of delivery, and at each side extends inwardly in advance of the point of delivery. In the form shown in Fig. 1, the rubber squeegee 13 is of rectangular form with rounded ends stiffened by metal or leather plates 16. Wooden blocks 14 attached to the rubber carry wooden cross members 15 by means of which the squeegee is supported from a frame 6, 7 adjusted in guides 3 on the tar tank by a rack and pinion gear 5. 8. The squeegee is yieldingly held in contact with the road surface by springs 22 adjusted by rods 18. The flexible tar delivery pipes 32 lead from separate valves 33, each of which may be controlled irom the side of the machine. In a modification, the squeegee is carried from a counterweighted transverse shaft by arms mounted on the shaft with slight play and connected to the wooden blocks 14. The ends of the flexible. pipes 32 may be adjusted transversely from the side of the machine. Specification 192,458 is referred to.
Patent GB-854541-A (GB)
Title: Electrolytic sharpening, shaping and finishing of electrically conductive materials
IPC: B23H9/08
Filed: 1956-11-23
Abstract: 854,541. Removing metal by electrolysis. CLEVELAND TWIST DRILL CO. Nov. 23, 1956, No. 15955/56. Class 41 [Also in Group XXXV] A method of eroding e.g. sharpening or shaping, an electrically conductive body 18, e.g. of cemented tungsten carbide or high-vanadium steel, comprises metering a thin layer of electrolyte on to a smooth electrically conductive surface 2 moving at high speed to form a layer of electrolyte of 0À001 to 0À008 inches deep, disposing the body 18, as anode, in surface contact with the layer of the electrolyte, and maintaining direct current flow between the body 18 and the electrolyte, the body 18 and surface 2, which is made the cathode, being held in spaced relation. The surface 2 is a disc, which may be planar or slightly conical, e.g. sloping at 1 degree, is rotated on a spindle 1, cathode connection being through a mercury cup 23. The body 18 is held in a universal vice 20 which is advanced at a predetermined speed, and electrolyte is delivered by a pipe 5 having a baffle 6, the electrolyte being recirculated by a pump. The feed rate of the body 18 equals the eroding rate, and the apparatus is self-regulating in this respect, a decrease in the inter-electrode gap causing an increase in current and hence an increase in the erosion rate, and vice versa. The body 18 is fed towards the disc 2 by a variable speed reversing motor through a reduction gear, a reversing switch in the motor circuit enabling the body 18 to be withdrawn. The switch may be operated manually or by an electric timer, and may be included in the electrolysis circuit. Alternatively, the operation may be stopped by a limit switch actuated by the support for the body 18, the switch reversing the feed direction and opening the electrolysis circuit, or by an ampere-minute meter in the electrolysis circuit. Several compositions of aqueous electrolytes are described, e.g. for tungsten carbide, (all figures are grams/litre) Na 2 C 4 H 4 O 6  150, NaOH 150, and NaCl 20, and for vanadium-steel, NaCl 200 and H  3 BO  3  25. For composite bodies, additional constituents are NaCN and Na 2 CO  3  and the tartrate may be replaced by triethanolamine, sodium citrate, tetra sodium ethylene diamine tetra acetate or ammonium hydroxide. Operating voltages are in the range 2 to 30, preferably 5 to 25 current densities depending inter alia on voltage and inter electrode spacing, lying between 100 to 2,000 amps per square inch. The inter electrode gap, i.e. the thickness of the electrolyte layer, is in the range 0À001 to 0À020 inches. In a modification, Fig. 4, a cathode disc 31 is mounted on a spindle 30 and has a cylindrical flange 32 closely adjacent to which is supported the body 36 in a vice 37, electrolyte being delivered by a pipe 34. The electrolysis current may be kept constant by an electric circuit (see Group XXXV), which utilises a variation in the current to operate a two phase motor which adjusts the inter-electrode gap and so restore the current to its original value.
Patent GB-298933-A (GB)
Title: Improvements in machines for winding threads, twine, cords or the like
IPC: B65H54/14
Filed: 1927-06-16
Abstract: 298,933. Fairbairn Lawson Combe Barbour, Ltd., and Lawson, L. H. June 16, 1927. Winding-machines; creel arrangements; threadguides; tension arrangements.-In a machine for winding threads, twine, or cords an expanding sleeve member 3, Fig. 1, on which the cheese is wound is formed with oppositely extending longitudinal slots a - - a<3>, b - - b<3>, Figs. 3 and 5, so that when positioned on the conical winding spindle 2 it will expand from both ends towards its centre. The sleeve is forced on and from the spindle 2 by a hand-lever 9 connected by links 5, 5a to devices 4, 4a, Fig. 2, engaging a groove in the head 3a of the sleeve 3, the, device being locked in its winding-position by a catch 11<b>. The winding-spindle unit may be used in combination with a creel arrangement wherein the thread g is led from a bobbin 12, Fig. 7, over guides 13 - - 13<c> to the traversing guide 14, the intermediate guides 13<a>, 13b being braked by springs 16, 16<a> to tension the yarn. An empty bobbin 12 is discharged on to a guideway 19 by a pedal 18 and takes up the position 12c. Simultaneously the catch 20 retaining a full bobbin in the position 12b is released, permitting the bobbin to roll down to the forked supports 18d. Overrunning of the bobbin 12 is prevented by the spring-controlled drag-member 23.
Patent GB-627798-A (GB)
Title: Improvements in or relating to illuminated box signs
IPC: G09F21/04
Filed: 1947-06-18
Abstract: 627,798. Illuminated enclosures. CARBODIES, Ltd., and ORR, J. H. June 18, 1947, No. 16030. [Class 75(iv)] [Also in Group XVIII] An illuminated sign for mounting on the top of a roof panel 11 of a motor-car, kiosk &c., comprises a front wall 14 having translucent display areas, a reflector 13 of substantially half parabolic shape in vertical medial cross-section perpendicular to the front wall and forming top, and rear walls which, in conjunction with reflective side walls, surround an opening 12 in the roof panel, the underside of the opening being closed by a removable floor 18 carrying a light source 26. The front wall is slightly inclined either forwardly or backwardly and comprises a translucent sheet 14a the rear face of which is frosted and contacts a matt black face of an opaque stencil 14b. The sheet and stencil are mounted in a channel-section rubber frame 29 which is positioned at the top by a flange 30 on the reflector 13 and at the bottom and sides by a flange 31, the latter being secured at the bottom in a slot in a resilient weather-sealing strip 32 and at the sides to a casing 15 which also covers the reflector 13. The casing 15 has a projection 16 above and to the sides of the front wall 14 to keep sunlight from it, and has a marginal flange 27 which engages a slot in a weather-sealing strip 28 secured to the roof panel. The side portions of the inside wall of the casing act as reflectors. The floor 18 carries three rearwardly-directed electriclight bulbs 26, which are arranged so as not to project above the lower edge of the front wall 14, and is secured by screws and knurled nuts 19, 20 at the sides to two brackets 17 which depend from the casing 15, and at the rear by a screw 23 and nut 22 which also secure the rear of the reflector 13.
Patent GB-185839-A (GB)
Title: Improvements in or relating to marking, embossing or like machines for boot or shoe uppers or other articles
IPC: A43D95/14
Filed: 1921-06-11
Abstract: 185,839. British United Shoe Machinery Co., Ltd., and Morley, D. W. June 11, 1921. Embossing; platen machines.-In a machine for embossing boot or shoe uppers or other articles, a strip bearing the marking-medium is fed step by step to a stamp, means being provided for utilizing in consecutive marking operations and without bowing of the strip for this purpose different lateral portions of the strip so disposed thereon as both to be intercepted by a line extending perpendicularly across it. As shown, the invention is applied to a machine of the kind described in Specification 21066/12 in which type discs 1 carried by an oscillating frame 11 are depressed on to a fixed bed supporting the article. A strip 2, Fig. 2, carrying by means of an adhesive a gold or silver substitute passes from a spool 27 under a guide-roller 29 across the faces of the types and between feed-rollers 30, 31, the former being coupled after each two impressions to a rotating roller 39, Fig. 1, and the latter being releasable against a spring for threading through the strip and also being provided with grooves engaged by a pronged member 33, Fig. 6, for preventing the strip from adhering to the roller. A nut 9, Fig. 1, reciprocating in guides 10 is provided with an internal projection engaging a helical groove 140 in the roller 39 for rotating the same. A spring-pressed stop 44 slidably secured to the frame 11 engages loosely between collars 40 fixed to the roller 39, the resultant preliminary end long motions of the roller 39 engaging and disengaging teeth on its end from teeth on the end of the feed-roller 30. The feeding-mechanism is mounted in a carriage 19 slidably carried in guides 18 in the frame 11 and spring-pressed to the left in Fig. 1. A roller 21 on an arm 22 extending from the carriage 19 engages a cam 23 rotated intermittently by a ratchet actuated by an oscillating arm 14, the high parts of the cam causing the inner half of the strip to receive the impressions and the low parts corresponding to impressions on the outer half and also allowing the feed-roller 39 to move far enough to the left to be coupled to the driving-roller 39. By throwing out the pawl one half only of the strip 2 may be used; if this is the inner half, the stop 44 must be moved to the right to allow the necessary coupling between the rollers 30 and 39. The rollers 29, 30. 31 may be made of heat insulating material such as asbestos or fibre.
Patent GB-1459621-A (GB)
Title: Data processing systems
IPC: H04L12/403
Filed: 1974-04-11
Abstract: 1459621 Automatic exchange systems; master and slave systems SIEMENS AG 11 April 1974 [30 May 1973] 16114/74 Headings H4K and H4P In a computer controlled exchange having a common data bus via which a set of peripherals R may intercommunicate with each other or with a central processor C, the latter cyclically addresses the peripherals so as to communicate therewith whereas an independent cyclical address unit H addresses the peripherals during pauses in central processor addressing so as to permit inter-peripheral communication. The peripherals may be register buffers each of which serves a set of telephone relay sets. Every address emitted by the processor is accompanied by a transmit or receive instruction bit while every address emitted by the address unit is accompanied by an invitation to transmit bit. The peripherals respond by indicating that they have nothing to transmit or that they are not ready to receive, by sending data to the processor with an indication of the total number of data words that they are going to use or by sending the address of a register with which they wish to communicate. Each register recognizes its own address and responds automatically.
Patent GB-991242-A (GB)
Title: Improvements in or relating to shaft furnaces
IPC: F27B1/00
Filed: 1964-04-18
Abstract: 991,242. Cooling shaft furnace walls. J. SEPULCHRE, and P. SEPULCHRE. April 18, 1964, No. 16191/64. Heading F4B. The upper part of a shaft furnace is lined by a water-cooled metal jacket 2 and a duct system injects a neutral non-combustible gas, e.g. CO 2  into the shaft at or near the lower end of the jacket. The duct system comprises spaced tuyeres 5 passing downwardly and inwardly through the lining from an annular chamber 6, the system being provided with means for controlling the injection of the gas, which may be recirculated waste gas from the furnace. The tuyeres 5 may be replaced by a similarly inclined annular slot-like duct, Fig. 2 (not shown), formed by two annular plates secured to and dividing the jacket into two compartments connected by pipes. The jacket may form part of a circulating system whereby the heated fluid is used in appliances located externally of the furnace.
Patent GB-121150-A (GB)
Title: Preserving Metallic Surfaces.
Inventor: JENSEN NIELS CHRISTIAN FUNDER
IPC: C23F15/00
Filed: 1917-11-06
Abstract: 121,150. Jensen, N. C. F. Nov. 6, 1917. Japanning.-Metallic articles are dipped in an oil, for example a mixture of whale oil and mineral oil, drained, and then heated to a temperature high enough to gasify the volatile constituents in an oven which permits the escape of the lighter gases. A suitable oven is one having an outlet at the top, the aperture of which can be raised, and a suitable temperature is about 300‹ C. Reference has been directed by the Comptroller to Specifications 2022/73, 4486/74, 9570/88, 9848/88, 1146/96, 3682/04, [Class 82, Metals and alloys], and 3945/15.
Patent GB-456848-A (GB)
Title: Improvements in or relating to the production of protective coating compositions
IPC: C09D115/02
Filed: 1935-06-04
Abstract: A coating-composition contains chlorinated rubber together with that component of an oxidized drying or semi-drying oil or oil-resin mixture obtained in accordance with the method described in the parent Specification.  About 3 parts by weight of chlorinated rubber preferably of high chlorine content, are used with from 1 to 6 parts by weight of the oil or oil-resin component.  The compound base, which may comprise also natural or synthetic resins, gums, or the like, is dissolved in a suitable solvent, and pigments, dyes, fillers, &c., may be added. According to examples: (1) a primer for metal comprises chlorinated rubber, oxidized drying oil component, red lead, xylol and benzol; (2) a finishing coat comprises chlorinated rubber, oxidized drying oil component, titanium dioxide, zinc oxide turpentine and xylol; (3) an acid and alkali resisting clear varnish comprises chlorinated rubber, oxidized drying oil component, turpentine and xylol; (4) an elastic finishing varnish comprises chlorinated rubber, oxidized drying oil component, tetralin, toluol and xylol.
Patent GB-131199-A (GB)
Title: Improvements in Chairs for Railway Rails.
Inventor: JOHN DAVID
IPC: E01B9/58
Filed: 1918-10-05
Abstract: 131,199. John, D. Oct. 5, 1918. Addition to 123,282. Joint chairs with adjustable jaws.-The chairs described in Specification 123,282 have wide jaws b, c to receive rail ends which are secured by fishbolts j passing through the jaws. The holes i in the jaws are larger than the bolts j, or may be oblong, to allow adjustment of the jaw c.
Patent GB-145061-A (GB)
Title: Improvements in the valve casings of internal combustion engines
IPC: F01L3/08
Filed: 1920-06-15
Abstract: 145,061. Daimler-Motoren-Ges. Dec. 20, 1915, [Convention date]. Valve-chests, construction of and cooling.-The axle spindle guide 1 is constructed with lateral and bottom projecting plates 2, 3, and is welded to the casing 4, which is cut away at 5, thus leaving a pocket so that the cooling water which surrounds the casing may obtain access to the spindle guide.
Patent GB-1535684-A (GB)
Title: Electrochromic display device
IPC: G02F1/1516
Filed: 1977-04-19
Abstract: 1535684 Controlling light INTERNATIONAL BUSINESS MACHINES CORP 19 April 1977 [17 May 1976] 16289/77 Heading G2F In a display device of the type comprising between electrodes an active layer of material which is imagewise photo-ionizable, thereby allowing subsequent imagewise current flow and electrochemical development of a coloured image (see Specification 1522226), the electrodes are respectively covered by anion and cation permselective membranes, and the active layer contains an electro-chemically reversible donor molecule (pyrazoline or spiropyran) and an electrochemically reversible acceptor molecule (1, 2, 4, 5-tetra-cyanobenzene; 1, 2- or 1, 4- dicyanobenzene; and fumaric nitrile).
Patent GB-1544216-A (GB)
Title: Bleaching and digesting cellulosic pulp
IPC: D21C9/10
Filed: 1976-04-22
Abstract: The bleaching sequences, if appropriate combined with a partial chlorination, start with an alkaline peroxide digestion. In the peroxide stage, the pulp having an alkali content of 0.5-3% by weight, calculated as 100% pure substance and relative to absolutely dry pulp, is bleached at a bleaching liquor temperature of at least 65 DEG C. The process can be carried out unpressurised and hence in simple equipment and allows complete bleaching even of hard pulps. Up to 90% of the substances polluting the effluent are dissolved out by the alkaline peroxide treatment, so that the receiving water course is not polluted thereby. As compared with hitherto conventional processes, about half the quantity of alkali and at most 1/5 of the quantity of chlorine are required. The effluent arising is non-corrosive and can easily be regenerated.
Patent GB-515435-A (GB)
Title: Improvements in voltage stabilizing devices for electric supply systems
IPC: G05F1/52
Filed: 1938-06-01
Abstract: 515,435. Automatic control systems. WHITE, E. L. C., and MANSFORD, H. L. June 1, 1938, No. 16345. [Class 38 (iv)] Voltage.-In a load voltage stabilizing arrangement in which the grid of a valve 12 in series with the load is connected to the anode of a control valve 3 in a shunt circuit of which valve the grid is connected to a tapping on a high resistance 10 connected across the load circuit, one negative end of this resistance is maintained at a constant negative p.d. with regard to the load circuit terminal by a control voltage 6. This control voltage may serve for a large number of stabilizers, To permit a wide range of regulation down to zero voltage at further source 16, such as a voltage stabilizer, may be connected between the cathode of valve 3 and the load circuit terminal. A condenser 13 may eliminate ripple voltage. The valve 3 may be a triode. The invention extends to arrangements in which a relay valve is arranged between the valves 3 and 12 or between the resistance 10 and the grid of valve 3.
Patent GB-112262-A (GB)
Title: Improvements in Artificial Legs.
IPC: A61F2/64
Filed: 1917-11-08
Abstract: 112,262. Hanger Incorporated, J. E., and Hanger, H. H. Dec. 28, 1916, [Convention date]. Limbs, artificial.-Comprises an operating lever for the knee-joint of a leg which may be clamped to the pin of the joint in different angular positions for purposes of adjustment. The knee-bolt 3 is rigidly secured by nuts 6 to the lower leg 2. The operating lever 8' within the thigh portion 1 is formed with a split ring which may be clamped to the knee-bolt by a set-screw 10. The outer end of the lever, by means of a short link 20, carries a roller 11 around which the suspender 12 is looped. The back-check 5. secured to the leg portion and pivoting upon the knee-bolt, is bifurcated, each member of the fork being formed of a plate 5, bent to form collars 14 surrounding the knee bolt and turned back upon itself to be secured by screws. The back-check limits movement by contact with the ends of a slot at the back of the thigh portion 1. In a modification, the split ring is looped back on the lever 8' and secured by a set-screw on the same side of the knee bolt as the roller 11.