baber/WOPTO huggingface dataset:
Patent GB-1407981-A (GB)
Title: Outomatic analytical machine
IPC: G01N35/00
Filed: 1971-10-07
Abstract: 1407981 Automatic analysis machine WELLCOME FOUNDATION Ltd 6 Oct 1972 [7 Oct 1971] 46639/71 Heading G1B An automatic analytical machine for analysis of liquid samples comprises in combination a reaction chamber D, a continuous length of connecting tubing, one end of which is directed into the reaction chamber and the other end of which is open and free to dip into a supply of a sample to be analyzed, a pressure-controlled measuring device C provided with fluid-pressure changing means, the measuring device being connected between the two ends of the connecting tubing so as to be able to draw a predetermined quantity of a sample from the reservoir into the open end of the tubing 27, a pressure control mechanism which is operable to cause a change of fluid-pressure in the reaction chamber and in the connecting tubing, for example by applying reduced pressure at Q, to draw liquid into chamber D, and reagent supply means H, U, or F for supplying reagent to the reaction chamber, the machine optionally including also a diluent supply device G, B, the pressure control mechanism then operating to draw into chamber D reagent from supply H and diluent with the predetermined quantity of sample. Optical measurements may be made on the reaction mixture in chamber D. For titration of the sample in chamber D, reagent from device F is fed by the syringe device through tubing 28 into the chamber D. The sample measuring device Fig. 4, (not shown) may comprise a U-tube containing mercury, one end of the U-tube carrying a sintered glass disc L2, the other side of which communicates with a tube containing carbon tetrachloride and joining the sample-taking tubing 27, the other end of the U-tube carrying telescopingly within it a capillary tube M (for adjustment of sample volume), the outside end of the capillary tube communicating via a second sintered glass disc Ll with a vacuum source. Examples relate to determination of calcium by complexometric titration with EDTA, of total protein using the biuret reaction and of lactate dehydrogenase.
Patent GB-989269-A (GB)
Title: Improvements relating to the hydrocatalytic treatment of hydrocarbons
IPC: C10G47/16
Filed: 1962-12-12
Abstract: The dealkylation of hydrocarbon feedstocks containing alkyl aromatics is carried out at an elevated temperature in the presence of hydrogen and a catalyst comprising zeolit Y (see Specification 909,266), and a hydrogenating component which may be a metal selected from Group VIa or VIII, e.g. palladium. The hydrogenating metal may form 0.1-5 wt. % of the catalyst and may be supported on the zeolite as elemental metal or a compound thereof or introduced into the zeolite by base exchange.  The process conditions specified are temperatures of 450-900 DEG  F., pressures of 50-1500 p.s.i.g., space velocities of 0.1-10 v/v/hr. and hydrogen rates of 500-20,000 SCF/B.
Patent GB-1056598-A (GB)
Title: Improvements in or relating to motion picture film projectors
IPC: G03B19/18
Filed: 1963-11-29
Abstract: 1,056,598. cinematographic projectors. CONTINA BUREAUX - UND RECHENMASCHINENFABRIK A.G. Nov. 29, 1963 [Nov. 30, 1962; Sept. 6, 1963], No.47209/63. Heading G2E. A moving film projector has means for advancing the film at normal frame sequence rates and a means for advancing the film at a slow frame sequence rate, both rates being so arranged that correct shuttering is attained by correct phasing of the film advance mechanism. As shown, a shutter 29, eccentric 30, cam 31 and gear wheel 32 are fixed on a shaft 27 driven by a pulley 28. A worm 34 rotatably mounted on the shaft 27 drives a film sprocket through a worm wheel 35 and shaft 51. The worm is driven through gears 32, 39 and either 42, 36 or 41, 37 depending on the position of a clutch 43, the gears 42 and 41 being fixed on a shaft 38 rotating at one third the speed of the shaft 27. The train 32, 39, 41, 37 allows projection at the normal sequence rate and the train 32, 39, 42, 36 at one-third the normal rate. A cam 33 fixed on the shaft 38 has a follower connected to a lever 45 which, when the gears 42, 36 are operative moves the shaft 27 towards the film once every three revolutions of the shaft 27 and enables the claws to engage the film. Engagement of the gears 42, 36 is obtained by energizing a solenoid M, contacts 52 allowing current to flow to the solenoid only at that time in the cycle when the film is in the correct position to be engaged by the claws. In a modification, Fig. 6 (not shown), the change in speed may be obtained by the use of a Geneva movement and a stepping motor, the motor being actuated by contacts on either of two shafts, one rotating at one-third the speed of the other.
Patent GB-1490309-A (GB)
Title: Contact bar for electrolytic cells
Inventor: DEANE RICHARD
IPC: C25C7/02
Filed: 1975-11-17
Abstract: 1490309 Contact bar for electrolytic cells COMINCO Ltd 17 Nov 1975 [28 Nov 1974] 47312/75 HeadingC7B A contact bar for electrolytic cells comprises a cylindrical or semi-cylindrical metal bar grooved as shown. The grooves are equally spaced and are identical or alternately identical. Parts 25 may be 1/3-¥ of the diameter of ends 22. Sides 27 may be at 45 degress to the bar axis. In use, a cell for electrowinning has alternate anodes and cathodes, each provided with a header bar having at one end an extension with a V-notch in its underside. The notches engage in the grooves of the bar to provide support and electric contact, for which purpose parts 25 should be narrower than the width of the notched extensions. The included angle of the notches may be 75-105 degrees. A semi-cylindrical bar is used at the end of a multi-cell row. For a Cu bar at least 1 sq.in. of bar section is provided per 1000 Amps.
Patent GB-970000-A (GB)
Title: Novel acrylonitrile polymers and their preparation
IPC: C08F20/44
Filed: 1962-12-14
Abstract: An acrylonitrile homopolymer which has a diffuse X-ray pattern as compared to a standard X-ray pattern of conventional polyacrylonitrile obtained by conventional free-radical polymerization, and maximum solubility in propylene carbonate at a temperature in the range of from 35 DEG C. to 60 DEG C. not exceeding one per cent. by weight, is made by polymerizing acrylonitrile in an inert medium in the presence of a complex catalyst made by (1) introducing into an aromatic hydrocarbon solvent (a) an aluminium trialkyl e.g. the triethyl and (b) a compound of the formula MOR wherein M represents a metal selected from alkali or alkaline earth metals, and R represents a lower alkyl radical or hydrogen, reacting (a) and (b) at ambient temperature, allowing crystals to separate from the reaction mixture and recrystallizing the crystals.  In the reaction mixture (a) and (b) are present in molar ratios of from 0.5:3 to 3:0.5.  The (b) compound may be sodium ethoxide, potassium methoxide, sodium propoxide, magnesium butoxide, sodium pentoxide, sodium hydroxide, magnesium hydroxide, potassium hydroxide, or calcium hydroxide.  The polymerization medium may be dimethyl formamide, dimethyl sulphoxide, or dimethyl acetamide.  The polymer is recovered by treating the reaction mixture with methanol.
Patent GB-1336468-A (GB)
Title: Polymerizable compositions
IPC: C08F299/02
Filed: 1971-10-12
Abstract: 1336468 Polymerizable composition KANSAI PAINT CO Ltd 12 Oct 1971 [12 Oct 1970(2)] 47542/71 Heading C3P A polymerizable composition comprises not more than three parts by weight of an ethylenically unsaturated monomer mixed with one part by weight of the product of an etherification or ether exchange reaction between an acrylamide derivative of formula where R<SP>1</SP> is H or Me and R<SP>2</SP> is H or C 1 -C 8  alkyl, and a compound having at least two hydroxyl groups in the molecule and a hydroxyl equivalent of 30 to 240 and/or a synthetic resin having at least two hydroxyl groups in the molecule, a hydroxyl equivalent of 130 to 3,000 and a number-average molecular weight of 500 to 100,000. The latter reaction is preferably carried out at 50-140‹C in the presence of an acid or basic catalyst using 0À2 to 1À4 moles of the acrylamide derivative to each equivalent of hydroxyl groups in the other reactant. The composition may be hardened by heating in the presence of a polymerization initiator, by ionizing radiation, or by light in the presence of a photosensitizer. Many monomers, acrylamide derivatives, hydroxyl compounds and etherification catalysts are mentioned. In examples (1) N-n-butoxymethyl acrylamide is reacted with trimethylol propane in the presence of p-toluene sulphonic acid and the product is mixed with ethyl acrylate and benzoin ethyl ether and hardened under a mercury vapour lamp; (2) N-methoxymethyl acrylamide is similarly reacted with polyethylene glycol (M. Wt. 200) and the product is mixed with butyl methacrylate and benzoyl peroxide and hardened thermally; (3) N-methylol acrylamide is reacted with a styrene-hydroxyethyl methacrylatebutylacrylate (5:2:3) copolymer and the product is mixed with n-butyl methacrylate and hardened as in (2), (4) N-ethoxymethyl acrylamide is reacted with pentaerythritol and the product is mixed with styrene, divinyl benzene and TiO 2  to form an enamel which is hardened with 300 kV electrons,
Patent GB-1082580-A (GB)
Title: Improvements in or relating to arrangements for the compensation of undesirable currents
IPC: G01R1/30
Filed: 1965-11-11
Abstract: 1,082,580. Circuit arrangements for compensating undesirable currents. CHIRANA, ZAVODY ZDRAVOTNICKE TECHNIKY, OBOROVY PODNIK. Nov. 11, 1965 [Nov. 13, 1964], No. 47866/65. Heading H2H. To reduce errors in the reading of a milliammeter 13 produced by the stray currents associated with the rectifiers 16-19 and transformer windings 14, 15 of an X-ray tube 20 supply circuit, a compensating voltage is fed from a transformer 6 to the meter circuit through potentiometers 7, 8 for amplitude adjustment, a capacity-resistance circuit 9, 10 for phase shifting and non-linear and linear impedances 11, 12 respectively, of which the impedance 11 gives a desired shape and the impedance 12 gives a desired amplitude to the compensating voltage. As shown, the impedance 11 comprises rectifiers in series-opposed connection and the impedance 12 is an adjustable resistance. Alternatively the impedance 11 may comprise voltage dependent capacitors or valves (grid controlled if desired).
Patent GB-1318489-A (GB)
Title: Concrete aids
IPC: C04B24/20
Filed: 1971-10-18
Abstract: 1318489 Concretes ESSO RESEARCH & ENG CO 18 Oct 1971 [19 Oct 1970 8 June 1971] 48399/71 Heading C1H [Also in Division C3] The fluidity of cement sand concretes is improved by the addition of anhydrous, e.g. glycol or xylene solutions of a monoester of an alkaryl sulphonic acid and a polyoxyalkylene glycol having a hydrophile-lipophile balance index of at least 10À5, in quantities giving 0À3 to 2 kg. of monoester per ton of concrete.
Patent GB-1208030-A (GB)
Title: A semiconductor device
IPC: H01L23/532
Filed: 1968-06-24
Abstract: 1,208,030. Semi-conductor devices. HITACHI Ltd. 24 June, 1968 [28 June, 1967], No. 48820/69. Divided out of 1,208,029. Heading H1K. The description is identical to that of Specification 1,208,029, but the claims are directed to a semi-conductor device in which an ohmic contact to a region of one conductivity type is provided by a diffused region of the same conductivity type but having an impurity concentration of at least 10<SP>20</SP> cm.<SP>-3</SP> which is contacted by the metal electrode through an aperture in an insulating film comprising a layer of glass sandwiched between two other layers of insulating material.
Patent GB-1057629-A (GB)
Title: Seals
Inventor: TAYLOR KENNETH ROY
IPC: F16J15/32
Filed: 1963-12-12
Abstract: 1,057,629. Seals. SUPER OIL SEALS & GASKETS Ltd. Dec. 11, 1964 [Dec: 12, 1963], No. 49194/63. Heading F2B. A shaft seal, particularly for a shock absorber, comprises a rubber body 10 having an annular collar 13 with two axially spaced sealing lips 15 and 18, each lip being chamfered as at 16, 17 and 19, 20 to provide a sealing edge substantially centrally of the lip. The lips may be urged inwardly by a rubber band 21 or a garter spring or circlip. In a modification (Fig. 4), a grit excluding lip (24) having a cylindrical sealing surface (24a) is provided at the end of the seal remote from the lip (15).
Patent GB-1218940-A (GB)
Title: Water-soluble basic monoazo dyestuffs and processes for their manufacture
IPC: C09B44/04
Filed: 1968-10-18
Abstract: 1,218,940. Basic water-soluble monoazo dyestuffs. FARBWERKE HOECHST A.G. 18 Oct., 1968 [21 Oct., 1967], No. 49459/68. Addition to 1,166,132. Heading C4P. The invention comprises basic water-soluble monoazo dyestuffs free from sulphonic and carboxylic acid groups having the general formula wherein Y is H, halogen, alkyl, alkoxy, trifluoromethyl, nitro, alkylsulphone, arylsulphone, CN or a carboxylic acid ester group, a sulphonic acid amide or carboxylic acid amide group which may be substituted, or an acyl group; Z is H or a non-water solubilizing substituent, R 4  is H, alkyl or aryl which may be substituted, cycloalkyl or aralkyl, R 5  is H, alkyl which may be substituted, cycloalkyl or aralkyl, and R 4  and R 5  may represent a heterocycle with the N atom, A is a phenylene or naphthylene radical which may be substituted, R 1 , R 2  and R 3  are optionally substituted C 1 -C 4  alkyl radicals and X<SP>1-1</SP> is an anion. They are prepared by diazotization and coupling or by quaternating the corresponding amino monoazodyestuffs. The quaternating agent may be used in excess or in presence of an inert solvent. The dyes give yellow and orange shades on tanined natural or regenerated cellulose, synthetic polyamides, acid modified polyesters polyacrylonitrile, polyvinylidene cyanide, silk and leather.
Patent GB-1407794-A (GB)
Title: Process for the removal of aromatic compounds from distillate  hydrocarbon fractions
IPC: C10G45/22
Filed: 1971-10-26
Abstract: 1407794 Hydrogenation SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 24 Oct 1972 [26 Oct 1971] 49651/71 Heading C5E A process for removing aromatic compounds from a distillate hydrocarbon fraction containing up to 5 p.p.m. of sulphur compounds comprises dissolving 85-135% of the amount of hydrogen stoichiometrically needed to saturate the aromatics present in the distillate hydrocarbon fraction and contacting the solution with a solid hydrogenation catalyst. The hydrogenation can be carried out at 85-200‹ C. and at 1-100 atmospheres absolute using a catalyst containing Pt, Rh, Ru or Ni on an alumina or silica support. The distillate treated can be a C 5 /C 6  fraction obtained from a naphtha having a final boiling point of 180-200‹ C.
Patent GB-1455673-A (GB)
Title: Text processing system
IPC: G06F3/12
Filed: 1974-11-18
Abstract: 1455673 Selective signalling INTERNATIONAL BUSINESS MACHINES CORP 18 Nov 1974 [26 Dec 1973] 49784/74 Heading G4H In a text processing system, character and control codes can be transferred from a recirculating memory via a random access memory to a text processor (having a lower data rate than the recirculating memory), there being means for decoding selected ones of the character and control codes. Text information can be entered into a text processor from a keyboard, then transferred to a shift register which recirculates via a first latch register at a higher data rate than that used by the processor. Information from the shift register can be transferred via the first latch register to a random access memory under processor control until a block is accumulated after which it can be transferred to the processor for, e.g. justification, prior to printing out. Transfer from the shift register to the random access memory can be ended when the end of the shift register contents is reached, as indicated by detection of a dummy code by a first decoder responsive to the first latch register, the dummy code being written into the random access memory to inform the processor. Alternatively, the transfer may end because a decoder responsive to an address counter of the random access memory detects that capacity minus one has been reached, in which case a mark code is written into the random access memory to inform the processor and into the shift register (by-passing the first latch register). The processor can order the transfer to itself via the random access memory of information from the shift register of: all characters beginning with but not including an operation flag, selected characters beginning at the beginning of the stored information and including the flag, all characters beginning with a mark code (advancing the mark concurrently), or selected characters beginning with the mark code (which is advanced concurrently). The first decoder, besides recognizing dummy codes, also recognizes the operation flag, the mark code and the selected characters (predetermined). In the recirculation loop of the shift register, the first latch register can be by-passed, or a second latch register inserted in series with it, to shorten or lengthen the loop temporarily. The selected characters referred to can be mode codes, flag measure codes, indent tabs, required carrier returns &c. Printing out is accompanied by advance of the operation flag in the shift register loop.
Patent GB-1039287-A (GB)
Title: Improvements in or relating to interlocking roofing tiles
IPC: E04D1/04
Filed: 1963-12-18
Abstract: 1,039,287. Roofing tiles. M. C. LUDOWICI. Dec. 18, 1963 [Dec. 19, 1962], No. 50086/63. Heading E1B. A roofing tile is formed on two adjacent sides of its upper face and on the two diametrically opposite sides of its lower face with ribs 35, 36, 37, 38, 39 and grooves 20, 23 so that similar tiles in the same course and adjacent courses interengage. As in Fig. 1 (not shown) the tile is also provided on the upper face with two tapering recesses 11, 17 defined by ribs 12, 13, 18, 19. Small recesses 45, Fig. 2 (not shown) allow the tiles to be stacked one upon the other for storage.
Patent GB-1367152-A (GB)
Title: Safety controls for motor vehicles
IPC: B60K26/04
Filed: 1971-10-28
Abstract: 1367152 Throttle control device C W MACMILLAN 28 Oct 1971 [10 Nov 1970] 50116/71 Heading F1B Fail safe throttle control mechanism includes means in a connecting link between a throttle pedal and the operating lever of the carburetter butterfly valve to sense failure of the mechanism to return to a decelerating position upon an attempt to decelerate, and to react to such failure by immediately returning the operating lever to an idle position. An accelerator pedal 10 pivoted at its lower end (not shown) actuates a push rod which carries a piston 11 having an annular groove 25. The piston runs in a cylinder 14 and is biased by a compression spring 21. A spigot 23 is connected by a hose 55' to the inlet manifold and a spigot 24 is connected to a cylinder 45. Movement of the piston towards the throttle pedal is limited by a cross pin 27 in the push rod. An extension 16 of the cylinder 14 is pivotally connected to a lever 30 to which is attached a tension spring 32 which tends to move the cylinder in a direction to close the throttle. A rod 34 is also pivoted to the extension 16 and carries a flat plate 37 which is held by a spring 38 against a partition 35' across the middle of a sleeve 35. A further rod 43 is pivotally connected at one end to the butterfly valve operating lever 33 and carries at its other end a flat plate 42 which is held by a spring 41 against the end wall 40 of the sleeve 35. A rod 44 pivotally connected to the lever 33 has a ball end 46 which runs in a hollow piston rod 47 attached to the piston 48 of the cylinder 45. Operation When the engine is idling, return spring 32 overcomes spring 21 and moves cylinder 14 towards the accelerator pedal. The piston 11 then blocks the orifices of the spigots 23 and 24. When the pedal 10 is pressed, spring 21 remains compressed and cylinder 14 moves forward and through the sleeve assembly 35-40, opens the butterfly valve. If, when the pedal is released, the butterfly valve lever does not return to the idle position, then spring 21 extends and moves piston 11 so that groove 25 connects hose 55' to hose 55, vacuum is applied to cylinder 45 and the butterfly valve operating lever is returned to the idle position. In a modification, Fig. 2 (not shown) the assembly of cylinder 14 is replaced by two valves in series between the hoses 55 and 55', one valve being actuated by the push rod and the other being responsive to the position of plate pivotally mounted on, and moving with the accelerator pedal, the pressure of the driver's foot being transmitted through the plate. In a further modification, Figs. 3 and 4 (not shown) the vacuum valves are solenoid operated.
Patent GB-1179208-A (GB)
Title: Process for Treating Fibrous Organic Materials.
Inventor: MUIJS HERMAN MATHIEU
IPC: D06M13/248
Filed: 1968-10-28
Abstract: 1,179,208. Sulphonium compounds. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 28 Oct., 1968, No. 60937/68. Heading C2C. [Also in Divisions D1 and D2] Compounds having the formula in which R<SP>1</SP> and R<SP>2</SP> are alkyl groups containing an uninterrupted carbon chain of 12-22 carbon atoms, the carbon atom attached to the sulphur atom being regarded as the first member of the chain and the sum of the carbon atoms of both chains amounting to at least 25, R<SP>3</SP> is an alkyl group having 1-3 carbon atoms, X<SP>n#</SP> is an anion and n is an integer, are prepared by alkylation of the corresponding dialkyl sulphides, e.g. with dimethyl sulphate, the dialkyl sulphides having been prepared from linear olefins by reaction with hydrogen sulphide.
Patent GB-1288084-A (GB)
IPC: F16H61/00
Filed: 1969-10-16
Abstract: 1288084 Change-speed control HONDA GIKEN KOGYO KK 16 Oct 1969 [22 Oct 1968] 50941/69 Heading F2D In a pressure-fluid control of ratio-selecting clutches 8, 9 of an automatic transmission on a motor-vehicle, including an engine-driven pump 1 supplying a main line 4, feeding manual and automatic shift-valves 5 and 6, 7, the latter operated by throttle-pressure 16, opposed by governor pressure 11, provided by an outputdriven centrifugal valve 13, regulating an exhaust bleed from the line 11, the loss of line pressure 4 which might otherwise occur at low speeds when the governor exhaust is at its maximum opening, is avoided by throttling the supply from the main 4 to the governor line11 at low governor pressures, such throttling being effected by a pressure-regulator valve 27, arranged between line pressure 4 and a fixed orifice 10, feeding the governor line 11, and maintaining constant outlet pressure 29 from the valve 27. In addition, arranged in parallel with the regulator valve 27, is a by-pass valve 33, which is opened by high governor pressure 11 to connect line 4 directly to the orifice 10.