baber/WOPTO huggingface dataset:
Patent GB-858086-A (GB)
Title: Method for synthesis of amides of imidazoles or benzimidazoles
IPC: C07D233/56
Filed: 1959-09-16
Abstract: Amides of the formula:  <FORM:0858086/IV(b)/1> are prepared by reacting in an inert, substantially dry liquid medium a carboxylic acid of the formula:  <FORM:0858086/IV(b)/2> with an N : N1-carbonyldiimidazole of the formula:  <FORM:0858086/IV(b)/3> wherein A-C is a carboxylic acid radical which is free from other groups capable of reacting with the N : N1-carboxyldiimidazole reactant and I is a substituted or unsubstituted imidazole or benzimidazole bonded through a nitrogen atom of the heterocyclic azole ring.  The process is particularly applicable to the use as carboxylic acid reactants of aminoacids and peptides in which the amino groups have been acylated, e.g. with carbobenzoxy, tertiarybutyloxycarbonyl or phthaloyl groups. The amide products may be further reacted separately or in situ with an amine to form an amide corresponding to the amine reactant, examples of the latter being aminoacids or peptides in which free carboxyl groups are blocked by metal ions or esterifying groups.  In Examples (1) carbobenzoxyglycine is reacted with N : N1-dicarbonyldiimidazole and the product subsequently reacted with ethyl-L-tyrosinate, ethyl-DL-phenylalaninate, the sodium salts of L- and DL-phenylalanine, ethyl-L-leucinate and ethyl glycinate ; (2) carbobenzoxyglycine is reacted with N : N1-dicarbanyldibenzimidazole and the product subsequently reacted with ethyl-DL-phenylalaninate ; (3) tertiary butyloxycarbonyl-L-phenylalanine is reacted with N : N1-dicarbonyldiimidazole and the product subsequently reacted with ethyl glycinate ; (4) phthaloyl-DL-phenylalanine is reacted with N : N1-dicarbonyldiimadazole and the product subsequently reacted with ethyl glycylglycinate ; and (5) carbobenzoxy-L-alanine is reacted with N : N1-dicarbonyldiimidazole and the product subsequently reacted with ethyl glycinate.  N N1-carbonyldibenzimidazole is prepared by passing phosgene through a benzene solution of benzimidazole.
Patent GB-1301002-A (GB)
Title: Improvements relating to fluid-flow machines
Inventor: BACHL HERBERT
IPC: F01D5/02
Filed: 1970-06-30
Abstract: 1301002 Turbines; gas turbine plant; centrifugal compressors H BACHL 30 June 1970 [30 June 1969 15 July 1969 30 April 1970] 31726/70 Headings F1C F1G and F1T A rotor for a fluid-flow machine, e.g. a compressor or turbine, includes a series of flow ducts each extending between radially outer and inner ports and consisting of an outer region adjacent the outer port where the flow passage is shaped for predominantly tangential flow with a small axial component, an inner region adjacent the inner port where the passage is shaped for predominantly axial or axial and tangential flow, and an intermediate region in which the passage is shaped for predominantly radial flow, the outer port having a radially inner rounded-over edge formed by part of a circumferentially extending rim of the rotor whereby there is a direct transition adjacent the edge between the outer and intermediate regions. In one arrangement, Figs. 2, 3, the rotor is of centripetal type, having partition walls or vanes 3, the driving fluid entering substantially tangentially through circumferentially extending slot-like ports 9. A rapid change in flow to the radial direction is assisted by the shape of shroud 12 and by the rounded edge 15 of wall 14. In the inner region the flow is deflected into the axial direction with or without a tangential component and leaves through outlet ports 10 shaped as radial slots. To further assist direction change of the flow the vanes 3 may be curved-over at 16, 17 in the outer and inner regions respectively. In a modification, Figs. 5 to 12 (not shown) the outer ports 9 of the rotor are situated on a conical surface about the axis and the entering flow has an additional radially inward component. In a further modification, Fig.13, cooling or air compression ducts 26, 27 are situated above and below combustion gas expansion ducts 25, the latter being cooled by bled compressed air flowing through channels 35, 36, 37 in the partition walls. The compressed air leaving ducts 26, 27 passes through guide means 29, 30 and along path 42 to pre-heater 41 and thence to combustion chamber 38. Combustion gases leaving the latter are directed by means 28 into ducts 25 to drive the rotor. In any of the embodiments the plant may be multi-staged and may include stator flow ducts shaped to a mirror image of those in the rotor.
Patent GB-337774-A (GB)
Title: Improvements in the manufacture and production of wetting, cleansing, emulsifying and dispersing agents and preparations containing the same
IPC: D06M13/256
Filed: 1929-04-27
Abstract: 337,774. I. G. Farbenindustrie Akt.- Ges. April 27, 1929. Divided on 337,737 and addition to 306,116, [Class 2 (iii), Dyes &c.]. Sizes.-Products obtained from the esters, amides and ester-amides produced according to the parent Specification, if desired prior to or after treatment with alkylating agents (1) by conversion into salts with acids, (2) by neutralization with bases when they contain free acid groups, and (3) by esterification with acids when they contain hydroxy-groups or double linkanes are mixed with sizing agents or finishes such as starch, glue, white of egg or casein. Suitable salts of the amides, esters or ester-amides with acids which are specified are chlorides, bromides, sulphates, lactates, oleates, phthalates, or the salts with sulphonic acids of aliphatic aromatic, hydroaromatic or heterocyclic compounds. The activity of the salts or esters may be increased by the addition of protective colloids such as glue, gelatine, gums, vegetable mucilages, sulphite cellulose liquor, soap or saponaceous substances or organic solvents. In examples : (1) The product of example 1 of the parent Specification is mixed with lactic acid : (2) oleic acid is esterified with tri,ethanolamine and neutralized with mono or di-n-butyl-naphthalenesulphonic acid, hydroxystearic acid, butyric acid or mixtures thereof : (3) oleic acid is treated with diethanolbutanol and esterified with sulphuric acid (4) diethanolamine is treated with a-hydroxystearic acid and esterified with sulphuric or phosphoric acid : (5) the oxalic acid salt of the condensation product of oleic or a-hydroxystearic acid with triethanolamine is added to a paste of potato flour to form a sizing compound suitable for sizing cotton. (6) a salt of the sulphuric ester of a-hydroxystearic acid with the condensation product of oleic or train oil acids with trioxyethyltriethanol amine is added to a solution of magnesium sulphate. 7) a solution of a salt of the sulphuric ester of a-hydroxystearic acid with the condensation product of stearic or palmitic acid with di or triethanolamine or mixtures therof is used for softening artificial silk. Sulphonicacids of palmitic or stearic acids may be used in place of a-hydroxystearic acid sulphuric ester.
Patent GB-342277-A (GB)
Title: Improvements in or relating to coin freed gas meters
IPC: G07F15/02
Filed: 1929-10-23
Abstract: 342,277. Prepayment mechanism for gas meters. METROPOLITAN GAS METERS, Ltd. and FORSTER, J. D., Hyson Green, Nottingham. Oct. 23, 1929, No. 31771/30. Divided on 342,254. [Class 27.] Fraud, preventing; coin action, thrust.-In a prepayment gas meter, in order to prevent fraudulent actuation bv a n instrument inserted through the coin slot 10, Fig. 1, in the front plate, the quantity ratchet wheel 16, that is rotated by a handle 6 through the medium of a coin, is engaged by a pawl 18 pivotally mounted on the rear wall of the casing 1 by a pin and slot connection 19, 20, and having at its front end an extension 22 sliding in a cam slot 24, 26 in the rear wall. When the wheel 16 is rotated clockwise to open the valve, the pawl 18 is retained in engagement with the ratchet teeth until the part 22 moves out of the cam slot portion 24, the enlargement 26 then allowing the pawl to disengage against the action of a spring 21. At the end of its forward movement after the coin is discharged, the pawl moves the wheel 16 in the reverse direction a distance determined by the length of the slot portion 24. This distance may correspond to one or more teeth of the ratchet wheel. If an attempt is made to move the wheel 16 one tooth at a time by an instrument inserted through the slot 10, the pawl 18 reverses the movement. The coin acts by engaging a ledge 11 on a sliding member which it depresses to cause a driving tooth thereon to engage the ratchet wheel.
Patent GB-1502437-A (GB)
Title: Device for securing to a tubular member
IPC: F16J15/10
Filed: 1975-07-30
Abstract: 1502437 Pipe couplings; valves SIEMENS AG 30 July 1975 [30 July 1974] 31856/75 Headings F2G and F2V  The neck 7 of a quartz or glass ampoule is joined to a vacuum pump by a connector comprising a glass housing 2, a resilient sealing assembly 4 and a resilient, heat-resistant member 3 screwthreaded into the housing for providing an axial force on the sealing assembly and so causing it to expand radially against the neck 7 and housing 2. The sealing assembly 4 comprises rings 5, e.g. of silicone rubber, separated by spacing rings 6 having V-shaped cross-section and made of e.g. resilient material. The housing 2 may be cooled by a glass water jacket 1. Limit rings 9 of resilient, heat resistant material are provided at the end of the housing 1. Preferably the spacing rings 6, limit rings 9 and screw member 3 are made from PTFE-based plastics. A diaphragm valve 11 may be provided comprising a member 16 of PVC screw-threaded to a PVC or glass body portion 8 secured to the housing 2 and a diaphragm 12 attached by a spindle 14 to a knob 13. The diaphragm 12 may be a fluoroelastomer.
Patent GB-435833-A (GB)
Title: Improved cutter for and method of cutting gears
IPC: B23F21/24
Filed: 1934-11-06
Abstract: 435,833. Burnishing gear teeth. GLEASON WORKS, 1000, University Avenue, Rochester, New York, U.S.A. Nov. 6, 1934, No. 31880. Convention date, Feb. 15. [Class 60] [See also Group XXII] In a method of and apparatus for cutting gears, particularly form-cut bevel or hypoid gears having longitudinally curved teeth, progressively deeper cuts are taken down the sides of a tooth and then final finishing cuts are taken along the full height of the teeth to produce the final tooth-space form. In one form of cutter, Fig. 1, the cutter body 26 is fitted with a number of roughing blades 271 ... 27<26> of progressively increasing height followed by a number of alternately arranged finishing blades 28<1>-28<4> preferably spaced so that no two blades are cutting simultaneously, on the same side of a tooth space. Between the last finishing blade 28' and the first stocking out blade 27<1> is a gap 32 of sufficient width to permit indexing while the blank is opposite this space without interrupting the cutter rotation or withdrawing the blank from the cutter. In some cases the finishing blades may be followed by one or more burnishing blades, Fig. 23, having rounded burnishing surfaces 132, 133 which act on opposite sides of the tooth space. A recess 120 is provided in the cutter so that the work G may be removed from its arbor 122 without withdrawing the work from the tool.
Patent GB-1382017-A (GB)
Title: Supercharged rotary piston internal combustion engine
IPC: F01C11/00
Filed: 1973-07-04
Abstract: 1382017 Rotary I C engines WANKEL GmbH 4 July 1973 [5 July 1972] 31901/73 Heading F1F In a single shaft 4, supercharged, rotary piston motor having two I.C. four apex planetary piston engines 1, 2 whose housings have 3-lobed peripheral inner surfaces and are 180 degrees angularly displaced relative to one another in combination with a three lobed planetary piston supercharging compressor 3 therebetween whose eccentric 7 is 180 degrees out of phase with those 5, 9 of the engines 1, 2 and intermediate walls 14, 16 separating the engine and compressor cavities, a transfer port 21 located in one wall 16 and a passage 25 axially opposite in the other wall  14 are provided for respectively supplying a charge, drawn into one side of the compressor 3 and compressed, into the induction chamber of the engine 2 and a further part of the charge into the expansion chamber 40 and chamber 41 that precedes it of the engine 1 and a similar transfer port 20 and passage 26 are provided for respectively supplying the induction chamber of engine 1 and the expansion and preceding chamber of the engine 2 with a charge from the other side of the compressor. Each engine has a connecting passage 27, 28 which inter-connect a respective working chamber at the end of its expansion phase to the preceding chamber and are arranged at the second saddle point following (in the direction of rotation) the transfer port 20, 21. The leading end 42 of each of these connecting passages is arranged so that a corner of the respective piston passes across it when the exhaust port 43 is uncovered by the preceding corner 44 of the piston. By this means fresh air is transferred from the compressor 3 via passage 25 or 26 through an admission port 45 in order to cause combustion of unburnt or partially unburnt fuel residues prior to exhausting through port 43. The admission port of each engine is uncovered bY the associated piston when one of the corners of that piston passes across the connecting passage of that engine. The axis of symmetry of the two lobed compressor housing is angularly displaced by 70-85 degrees, preferably 75 degrees, with respect to a diameter through the ignition points of either engine. The face seals and link blocks on the rotor 8 of the compressor 3 are positioned so as not to pass across the transfer ports which lead to the engines. The compressor 3 may be larger than normally necessary and throttle valves provided in its two inlet passages for restricting the flow for normal operation. Balance weights 31, 32 are provided on the ends of the shaft 4 which may be inserted endwise in one piece with the eccentrics 5, 7, 9 on it through suitably sized openings 15, 17, in the two intermediate walls.
Patent GB-387445-A (GB)
Title: Machine for the printing of positive bichromate films
IPC: G03B27/08
Filed: 1931-11-17
Abstract: 387,445. Prixiting-apparatus. LESSEPS, F. DE, 65, Rue de Courcelles, Paris. Nov. 17, 1931, No. 31907. Convention date, Jan. 30. [Class 98 (ii).] A machine for printing bichromate films comprises an opaque horizontal drum 1, Figs. 1 and 2, having a film rolling arrangement 27 on one side and on the other side a battery of parallel horizontal mercury vapour lamps 6 with a reflector 7 subtending a relatively small angle at the axis of the drum, and a series of parallel reflectors 10. During printing the drum 1 is given a longitudinal to and fro motion. The sensitive film, the negative and an outer compensating band as described in Specification 380,647, are spirally wound on the drum from reels 37, 38, 39. These reels together with a guide roller 40, are mounted on a carriage 27 which travels along a threaded shaft 36. Synchronous rotation of the drum and shaft 36 is derived from a motor-driven pulley 55, clutch 58, and gearing 56, 59. The reels 37, 38, 39 are rotated by interconnected chain gearing and a travelling gear wheel on shaft 36. For winding-on, however, this gearing need not be used and the reels freely mounted on their shafts. A sleeve 47 fixed by arms 48, 49 to uprights of the carriage 27 travels along a bar 50 parallel to the shaft 36. After the winding on operation clutch 58 is released and for printing the drum 1 is rotated by a second motor which drives the pulley 26. The longitudinal reciprocating movement of the drum is obtained by a cam plate 16 on the drum shaft 3 which is pressed by a spring 17 against a roller 19 on a pivoted arm 20. This arm is inoperative during winding and unwinding the films, the collar 60 on the drum shaft 3 being pressed against the bearing 5 during winding and unwinding operations.
Patent GB-1536359-A (GB)
Title: Colour television cameras
IPC: H04N9/04
Filed: 1977-07-28
Abstract: 1536359 Television camera KODAK Ltd 28 July 1977 [30 July 1976] 31910/76 Heading H4F A solid state colour camera includes a CCD imaging array 12, of elements sensitive to a regular sequence of primary colours along each row thereof (viz. R, G, B, R, ...). An NTSC signal is derived from the array by clocking out charge carriers at six times the standard colour subcarrier frequency 6 fsc, 10 or any frequency which is a harmonic of a subharmonic of the video subcarrier frequency. The output is gamma corrected 14 and divided by low-pass filter 16 and band-pass filter 18 into D.C. component of brightness and side-band components of pseudo chrominance. Frequency, phase and amplitude corrections are performed in circuits 40 and 26 to bring the signal into accordance with the NTSC standard. Similar processing may be employed to produce a PAL standard signal from the CCD. Other embodiments are described with respect to Figs. 2-10 (not shown).
Patent GB-742444-A (GB)
Title: Photosensitive paper base material and method of making the same
IPC: G03C1/775
Filed: 1953-11-18
Abstract: 742,444. Paper for photosensitive material. CIPRIANO, J. F., CIPRIANO, A. J., and CIPRIANO, F. L., [trading as ADELPHI RESEARCH & MANUFACTURING CO.]. Nov. 18, 1953 [Nov. 25, 1952], No. 31949/53. Class 96. Paper, which may be uncalendered, for use as a base for photosensitive material, is coated with a suspension of a basic aluminium carbonate gel, and dried. The gel may have 0.6 to 1.6 mol. of CO 2  per mol. of Al 2 O 4 , of which there may be 0.1 to 4 per cent in the suspension which may be at pH=5.5 to 7, and which may incorporate resins or gums &c. and a dispersing agent, e.g. magnesium aluminium silicate. The paper may be sized with glue, and the formaldehyde therefor may be sprayed on together with the aluminium carbonate suspension.
Patent GB-1254745-A (GB)
Title: 3-phenyl-7 (4'-chloropyrazolyl-(1'))-coumarins
IPC: C08G63/685
Filed: 1969-06-25
Abstract: 1,254,745. Detergents containing optical brighteners. J. R. GEIGY A.G. 25 June, 1969 [26 June, 1968], No. 32158/69. Heading C5D. [Also in Divisions C2, C3 and D1] Washing liquids contain optical brighteners of formula wherein R 1  and R 2  are each hydrogen, C 1-4  alkyl, C 5-6  cycloalkyl, an optionally non- chromogenically-substituted carbocyclic or heterocyclic aromatic radical or aralkyl radical, fluorine, chlorine, bromine or the trifluoromethyl group, and R 3  is an optionally non- chromogenically-substituted phenyl group. A specified composition comprises dodecyl benzene sulphonate, fatty alcohol sulphonate, sodium tripolyphosphate, tetrasodium pyrophosphate, magnesium silicate, sodium disilicate, carboxymethyl cellulose, ethylene diamine tetracetic acid, sodium sulphate, water and a solution of the optical brightener in ethylene glycol monomethyl ether.
Patent GB-485659-A (GB)
Title: Improvements in or relating to bodies or articles made by moulding plastics
IPC: B29C65/56
Filed: 1936-11-25
Abstract: 485,659. Cycle handles. BLUEMEL BROS., Ltd., and BLUEMEL, F. W. Nov. 25, 1936, No. 32230. [Class 136 (iii)] [Also in Groups V and XV] A bicycle hand-grip made by moulding plastics such as cellulose derivatives is provided on its exterior with a separate member constituting a nameplate 11, marking or other representation which is located in position by means formed integral with the article during moulding and is permanently and non-detachably secured by means other than by moulding or otherwise working the material of the article. The article may be moulded with an upstanding flange 12 defining a recess 13 wherein the metal plate 11 is positioned and secured by rivets in openings 15. In another form a recess is moulded in the surface of the article and the plate has a peripheral depending flange engaging within the recess, the plate being secured by rivets. A single rivet may be used and the plate may be secured to the end or side of the handle. Specification 467,896 is referred to.
Patent GB-1038068-A (GB)
Title: Logic circuit
IPC: H03K19/10
Filed: 1963-08-15
Abstract: 1,038,068. Tunnel diode logic circuits. SPERRY RAND CORPORATION. Aug. 15, 1963 [Aug. 27, 1962], No. 32332/63. Heading H3T. A logic circuit has a plurality of inputs each comprising a tunnel diode, one electrode of each diode being connected to an input electrode of a transistor. As shown, tunnel diodes 22 ... 24 are biased to their low voltage states by a constant current source 20, 21 and transistor 31 is arranged to be only just conducting. If pulses are supplied to only one or two of the inputs, the associated tunnel diodes are switched to their high voltage states but the presence of the unswitched diodes prevents a signal being fed to the transistor 31, but when pulses are supplied to all inputs, all tunnel diodes are switched to their high voltage states, the current in transistor 31 becomes increased, resulting in a differentiated pulse in the secondary of transformer 32. The circuit thus has an AND function and remains in the high voltage state until reset by clock pulses fed via a conventional diode 39. The differentiated pulse from 32 may be fed to a bi-stable circuit so as to give level changing logic or may be fed to another circuit of the type shown.
Patent GB-272111-A (GB)
Title: Improvements in or relating to pulverizers
IPC: B02C15/04
Filed: 1926-12-21
Abstract: 272,111. Kreutzberg, O. A. Nov. 5, 1926, [Convention date]. Pneumatic separating.-A pulverizer comprises two precipitation chambers, one containing the crushing-elements and being associated with means for admitting an horizontal current of air to the chamber and among and over the crushing- elements, and including a passage-way for conducting air and particles carried in suspension to the second chamber which is associated with means for admitting a horizontal current of air laden with particles to the chamber. The second chamber may be arranged above the first chamber and communicate therewith through an annular passage-way. The table 19, Fig. 2, mounted on a vertical shaft 18 supported in bearings 16, 17, 20, has a conically-dished portion 24, and the axles 31 of the crushing- rollers 30 are mounted in pivoted brackets 32 with devices 35 to press the rollers against the paths 25. The coarser particles entrained by the air current are deposited in the chamber 68 above the table and fall on to the table for further crushing by the rollers. An upwardlyflared shell 69 is secured to the casing 67, and a conical hopper 71 is disposed axially of the shell 69, the space 73 between forming a flaring outlet from the chamber 68. An annular series of adjustable vanes 78 is arranged between the top edge of the hopper 71 and the cover 76 of a shell 75 superposed on the shell 69. Each vane 78, Figs. 10 and 11, has upper and lower pivots 81, 82 fitting in rings 83, 84, and the pivots 82 carry crank-arms 85 connected by links 86 to a ring 87 which forms the rim of a turntable 88. The cross-members 89 of the turntable are connected to a hub portion 90 engaging a pivot-support 93 carried by cross-members 94 from the hopper 71. To adjust the angularity of the vanes, the turntable is turned by means of a vertical hand-shaft 96 connected by a chain or cord 100 to a pair of adjustable spokes 89. The passage 73 has preferably a substantially constant area of flow from end to end, this area being smaller than the cross-sectional area of the chamber 68 but greater than the total inlet area of the inlet passages. In operation, the particles deposited in the chamber 80 return by the outlet 'i4 at the bottom of the hopper 71 to the table 19 for further grinding, the fine particles passing with the air through the outlet 77 which is connected to an exhaust fan discharging to a cyclone separator.