baber/WOPTO huggingface dataset:
Patent GB-1478683-A (GB)
Title: Process for making bis (tetrakis (hydroxymethyl) phosphonium) oxalate
IPC: C07F9/54
Filed: 1974-09-17
Abstract: 1478683 Preparing bis - [tetrakis - (hydroxymethyl)]phosphonium oxalate AMERICAN CYANAMID CO 17 Sept 1974 [18 Oct 1973] 40541/74 Heading C2P [Also in Division D1] Bis - [tetrakis - (hydroxymethyl)]phosphonium oxalate is obtained by reacting in the absence of a catalyst, at least a stoichiometric quantity of formaldehyde with substantially stoichiometric amounts of phosphine and oxalic acid at 40-75 C., the reaction being carried out with intimate contact of the reactants. Intimate contact may be achieved by vigorous agitation of the reactants or by using a columnar reactant and passing the phosphine in at the bottom of the column countercurrent to a liquid containing oxalic acid and aqueous formaldehyde flowing from the top of the column. An example is given in which the oxalic acid is used in its dihydrate form and the process is conducted in the defined countercurrent manner. The product is useful as a flame-retardant for cellulosic fabrics.
Patent GB-922706-A (GB)
Title: Polyamides
Inventor: COSTAIN WINSTON
IPC: C08K5/00
Filed: 1960-11-25
Abstract: Synthetic linear polyamides are stabilized against the destructive effects of exposure to heat, light and oxygen by the incorporation with the polyamide before or after manufacture of a copper salt of a halogen substituted organic acid or of a halogen copper complex formed by reacting copper halides with ethylene thiourea, biguanide or aliphatic primary or secondary amines or polyamines, and optionally an oxy acid of phosphorus or salt thereof.  Specified copper salts are those of monochloracetic, iodoacetic, 2-iodopropionic, m-iodobenzoic, m-bromobenzoic and 4-bromonaphthalene-1:8-dicarboxylic acid.  Specified amines are ethylamine, propylamine, butylamine, ethanolamine-2-dimethylamine, diethylamine, 1:2-ethylene diamine, 1:2-propylene diamine, 1:2-diamino cyclohexane, 1:3-trimethylamine diamine and diethylene triamine.  Specified salts of the oxy acids of phosphorous are those of hexamethylene imine, morpholine, substituted piperidines, pyrrolidines, substituted pyrrolidines, piperazine, triethanolamine and the alkali metals.  In the examples:- (1) hexamethylene diammonium adipate is polymerized in the presence of acetic acid, anatase and a complex of cuprous bromide with ethylene diamine; (2) complexes of ethylene diamine with copper bromide or copper iodide are added to polyhexamethylene adipamide yarn; (3) polyhexamethylene adipamide contains the copper salt of iodoacetic acid.
Patent GB-990093-A (GB)
Title: Anti-dazzle lamps
IPC: B60Q1/14
Filed: 1962-10-27
Abstract: 990,093. Anti-dazzle lamps. T. F. HENNELLY. Oct. 27, 1962, No. 40703/62. Heading F4R. A lamp for use e.g. as a vehicle headlamp comprises a hollow casing 1, the inner surface of which is non-reflecting, a light source 2 such as an electric light bulb, a convex lens or lens system 3 at the open end of the casing and an obturating disc 4 between the light source and the lens. The disc 4 subtends the same angle at the light source as is subtended by the lens 3. The inner surface of the casing may be black or may be parabolic in shape, the light source being arranged as close as possible to the surface.
Patent GB-974502-A (GB)
Title: Improvements in relating to tobacco-manipulating machines
IPC: A24C5/18
Filed: 1959-12-01
Abstract: 974,502. Cigarette-making machines. G. F. W. POWELL, and MOLINS MACHINE CO. Ltd. Nov. 30, 1960 [Dec. 1, 1959], No. 40784/59. Heading A2C. [Also in Division B8] A continuous rod cigarette-making machine similar to that described in Specification 895,733 is provided with means for detecting and indicating undesired changes in the air-permeability of a perforated metal conveyer band. Such changes may be due to clogging or to small pieces of metal breaking from the conveyer. As shown, the lower run of a conveyer band 1 moves beneath a suction chamber 2 which draws air upwardly through the bend and through a passage 3. Tobacco particles are fed into the passage and build up on the band to form a filler which is held suctionally on the underside of the band. Surplus tobacco is removed by a trimming device consisting of a pair of co-operating discs 7 and the distance of the discs from the band is automatically adjustable. For detecting any variations on the air-permeability of the band, a chamber 10 connected to the suction chamber 2 is also connected to a further chamber 15 containing a diaphragm 14 and a metal disc 16. A disc 17 insulates the disc 16 from the chamber 15, the diaphragm 14 and disc 16 together forming a capacitor which is connected to a capacitance change detector 18. A pipe 13 connects the chambers 10, 15 and the return length of the band runs over the top of the chamber 10 in register with an opening 12 which corresponds in width to the width of the band. So long as the permeability of the band is unvarying, a steady suctional pressure is maintained in the chamber 10 and a definite capacitance value is produced between the diaphragm 14 and disc 16. When a portion of the band with a different permeability comes into line with the opening 12 a change in pressure in the chamber 10 results and a change in capacitance follows. If the variation is large enough an alarm 19 will be rung. Specification 929,338 also is referred to.
Patent GB-1198954-A (GB)
Title: Complex Compounds of the Cobalt-Phthalocyanine Series
Inventor: MERTENS PETER
IPC: C09B47/08
Filed: 1968-08-27
Abstract: 1,198,954. Cobalt phthalocyanine complex compounds. FARBENFABRIKEN BAYER A.G. 27 Aug., 1968 [31 Aug., 1967], No. 40875/68. Heading C4P. Novel co-ordinatively hexavalent complex salts of trivalent cobalt, in which four of the six co-ordination points at the cobalt atom are occupied by the phthalocyanine ring system (optionally substituted in the benzene rings) which has a double negative charge, and each of the remaining two points is occupied by an amine selected from primary, secondary and tertiary mono- and poly-amines, and which contain an anion, are prepared by reacting a cobalt phthalocyanine in either order or simultaneously with (a) an oxidizing agent in the presence of an anion, and (b) an amine. Suitable oxidizing agents are oxygen, air, halogens and nitric acid, and if no anions are formed by the oxidation, compounds containing such e.g. ammonium chloride or bromide, are added. If halogens are halogenating agents are used the process is preferably effected in a dispersing agent, the conditions being such that halogen does not enter into the hydrocarbon radicals to any appreciable extent. With nitric acid, room temperature is best employed, 2 moles of acid being used per mole of phthalocyanine. Suitable anions are Cl-, Br-, I-, HCO 3 -, CH 3 COO- and OH-. Suitable amines include ammonia, alkyl- and dialkyl-amines, alkanolamines, cycloalkylamines, aralkylamines, arylamines, heterocyclic amines such as 2-aminothiazole, cyclic amines such as morpholine and pyridine, and polyamines, particularly diamines H 2 N-A-NR 1 R 2  in which A is alkylene, R 1  is H or C 1-4  alkyl and R 2  is C 1-4  alkyl or cyclohexyl. An excess of the amine may be used as dispersing agent. Some products may be transaminated e.g. pyridine replaced by 1- amino-3-dimethylaminopropane. The products, when soluble in lacquer solvents, may be used for colouring lacquers. They may also be used for colouring synthetic polymers as well as pastes for ball point pens. The colours generally vary from blue to green. Examples are given, and the preparation of a complex of pyridine and cobalt phthalocyamine is also described, as is an intermediate phosphorus containing complex made by heating cobalt phthalocyanine (CoPc) with POCl 3  in nitrobenzene at 135‹ C., and an intermediate formed from CoPc and nitric acid in nitrobenzene at room temperature. Intermediate halo complexes are described in Specification 1,198,216. Tetraphenyl-cobalt phthalocyanine is prepared by heating 1-amino-3-imino-5- or 6-phenylisoindolenine with CoCl 2  in quinoline.
Patent GB-1471976-A (GB)
Title: Particle sensing apparatus including a device for orienting  generally flat particles
IPC: G01N15/14
Filed: 1974-09-20
Abstract: 1471976 Optically investigating particles COULTER ELECTRONICS Inc 20 Sept 1974 41078/74 Heading G2J Particles e.g. squamous cells are optically investigated at 33 after flowing through a chamber 16 having a slit like c.s.a. decreasing as shown to cause the cells to become oriented to present their maximum area to the beam 33. The cells are ejected at 14 into a non-turbulent liquid flow 28.
Patent GB-1274908-A (GB)
Title: Aminocyclopentanecarboxylic acid derivatives
IPC: A61K31/24
Filed: 1969-08-18
Abstract: 1,274,908. Aminocyclopentane carboxylic acid derivatives. AMERICAN HOME PRODUCTS CORP. 18 Aug., 1969 [20 Aug., 1968; 3 June, 1969], No. 41101/69. Heading C2C. Novel compounds of Formula I in which R<SP>1</SP> is aliphatic or aryl sulphonylamido: methyloxy; aryloxy; trimethylammoniumethoxy; OCHR<SP>3</SP>OR<SP>4</SP>, where R<SP>3</SP> is hydrogen or lower alkyl and R<SP>4</SP> is lower alkyl or COR<SP>5</SP>, where R<SP>5</SP> is lower alkyl, phenyl or chlorophenyl; where R<SP>6</SP> is lower alkyl and R<SP>7</SP> is methylol or carboloweralkyloxy; or OCH 2 -NG, where G is and R<SP>2</SP> is hydrogen, purinecarbonyl, alkyl, aryl, arylalkyl or their pharmaceutically acceptable acid addition salts are prepared by esterification of the corresponding compound wherein R<SP>1</SP> is OH, or by sulphonamidation of the corresponding compound where R<SP>1</SP>OH or an ester thereof, or by alkylation, aralkylation, arylation or acylation of the corresponding compound, where R<SP>2</SP> is H. (Lower denotes groups containing 1 to 7 carbon atoms, aryl denotes groups optionally substituted by alkyl or halogen substituents.) 1 - Amino - 1 - cyclopentanecarboxylic acid is prepared by reaction of cyclopentanone, ammonium carbonate and HCN and then acidification. p-Nitrophenyl esters of compounds of Formula I, where R<SP>1</SP> is OH and R<SP>2</SP> is benzyloxycarbonyl are prepared by standard methods. Pharmaceutical compositions in conventional forms for oral and parenteral administration and having anti-inflammatory and immunosuppressive activity comprise a novel compound of Formula I and a carrier or diluent therefor.
Patent GB-968307-A (GB)
Title: Improvements relating to polyurethane-type coatings for electrical conductors
IPC: C09D5/25
Filed: 1962-10-31
Abstract: A polyurethane-forming composition which is a bath liquid for coating electrical conductors comprises a solution of (i) an organic polyisocyanate containing an aromatic group and (ii) a diol comprising an aromatic residue to which the hydroxyl groups are attached each by means of an aliphatic chain containing one or two carbon atoms.  Preferably, the composition contains also a triol, (iii) in which any carbon atom attached to a methylol group carries no hydrogen atom.  When the composition does not contain the triol (iii) it may contain glycerol or pentaerythritol. Components (i) specified are 3,31-dimethyldiphenylmethane 4,41-di-isocyanate; 3,31-bitolylene 4,41-di-isocyanate-, diphenylmethane di-isocyanate and dianisidine 4,41-di-isocyanate.  Components (ii) specified are 1,4-bis(hydroxymethyl) benzene; 2,4-bis-(hydroxymethyl)-p-xylene; the bis(-hydroxyethyl) ester of terephthalic or isophthalic acid; the bis (2-hydroxypropyl) ether of 2,2-bis (p-hydroxy phenyl) propane and the bis(2-hydroxyethyl) ether of hydroquinone or of (2,2-bis(p-hydroxyphenyl) propane. Components (iii) specified are trimethylolpropane and trimethylolethane. The polyisocyanate may have been blocked by a phenol.  The solvent specified is cresol.ALSO:Coated electrical conductors are made by forming on the surface of the conductor a coating of liquid (see Division C3) comprising a solution of (i) an organic polyisocyanate containing an aromatic group, and (ii) a diol comprising an aromatic residue to which the hydroxyl groups are attached each by means of an aliphatic chain containing one or two carbon atoms, and heating the coating to cure it.  The liquid may also contain a triol in which any carbon atom attached to a methylol group carries no hydrogen, or glycerol or pentaerythritol.  In the examples wires are coated by dipping in a bath of the liquid and the coatings are cured by passing the wires through a vertical furnace at 550-650  DEG F.
Patent GB-1217373-A (GB)
Title: Improvements in or relating to polymer emulsions
Inventor: KAPLAN CHARLES ANDREW
IPC: C09D123/26
Filed: 1968-08-28
Abstract: 1,217,373. Polymer emulsion. E.I. DUPONT DE NEMOURS & CO. 28 Aug., 1968 [30 Aug., 1967], No. 41171/68. Heading C3P. A mechanically and freeze-thaw stable emulsion comprises an aqueous phase having dispersed therein an iminated copolymer containing at least 0À2% of a protective colloid selected from a water soluble cellulose derivative and a water-soluble polyvinyl alcohol, wherein the copolymer being derived from a vinyl ester of a lower (C 1 -C 8 ) carboxylic acid, ethylene and at least one monomer containing both polymerizable olefinic unsaturation and a carboxyl group is prepared in the presence of the protective colloid and contains, prior to imination, 0À01- 1À0 milliequivalent of acid per gram of polymer. Preferably the copolymer is iminated with an alkylene imine such as ethylene or propylene imine. In the examples, ethylene, vinyl acetate and (meth)acrylic acid are continuously copolymerized in an aqueous phase in the presence of potassium hydroxide or sodium bicarbonate, ammonium persulphate, and hydroxyethylcellulose or polyvinyl alcohol, and anionic surfactants. The copolymer prepared in this manner is then iminated by treatment at an elevated temperature with ethyleneimine. The products may be used in coating compositions.
Patent GB-1105811-A (GB)
Title: Improvements in the liquid treatment of filaments
IPC: D06B1/14
Filed: 1965-09-29
Abstract: Apparatus for applying a liquid to travelling filaments comprises a vessel from which liquid is withdrawn and applied to the filaments, a feed pipe delivering liquid below the surface of liquid in that vessel from a feed tank, a drain pipe withdrawing liquid from the bottom of the vessel and feeding it to a sump at a lower level than the vessel, via a pipe terminating in a valve which is open only while the level of liquid in the vessel is above a predetermined level.  In the preferred embodiment, Fig. 1 (not shown), the liquid applying vessels (7), (7a) are fed from a head tank (4) by pipes (6), (6a), the head tank being supplied with liquid from a sump (1) by means of a pump (2) and pipe (3). Each vessel (7), (7a) is divided into two compartments by a weir wall (25), (25a), liquid flowing over the wall being returned to the sump (1) by pipes (12) (12a) and (13). The pipe (13) is connected to a vertical pipe (14), at the lower end of which there is a valve (15) actuated by means of a float (17) situated in a tank (16) and from which depends a rod (18) passing through the pipe (14).  The lower end of the rod (18) is shaped to fit the valve seat in the lower end of the pipe (14), Fig. 2 (not shown). As the level of liquid in the vessel (7) rises above a predetermined level, the float (17) rises and opens the valve for liquid to pass to the sump (1); the pipes (12), (12a), (13) and (14) are always filled with liquid.  The head tank (4) is provided with a similar float, rod and pipe arrangement.  Some of the liquid from the head tank (4) is recirculated to the sump (1) by means of a pipe (33) which terminates in a filter (36).  The feed of liquid to each container i.e. vessels (7), (7a) head tank (4) and sump (1), is effected below the surface level of the liquid in that container. The apparatus is described in relation to applying a spinning finish to artificial filaments.
Patent GB-1244873-A (GB)
Title: Improvements in or relating to vehicle suspensions
Inventor: CRONCH STEPHEN JOHN
IPC: B60G17/015
Filed: 1968-08-20
Abstract: 1,244,873. Preventing lateral canting; preventing longitudinal movement. ROVER CO Ltd. 19 Aug., 1969 [20 Aug., 1968], No 41329/69. Heading B7D. [Also in Division F2] A control unit for a vehicle suspension system in which the effective height of the suspension is varied by supply or withdrawal of fluid to or from a strut in the suspension to cause correction of the attitude of the vehicle bodywork under dynamic conditions, comprises a rotary vibration damper, Fig. 2, having two relatively rotatable parts 5, 7 of which the relative movement is opposed to agree dependent on the velocity of such movement, the damper being mounted for rotation as a whole with respect to a mounting plate 1 for securement to a vehicle, a pendulum 8 connected to one part, 7, and the other part 5 being for connection to the suspension linkage of a vehicle wheel, and a spring 19, Fig. 1, connecting the part 5 and the pendulum 8. The spindle 7 of the damper may be connected to a vaned rotor inside the body 5 which may contain a viscous fluid. A splined stub-shaft 6 projecting from the body 5 is, in use, connected to the suspension linkage of a vehicle wheel. The pendulum may have connection with a plunger 14 for operating a spool valve 16 to control fluid flow to or from the suspension strut. The unit may be mounted on a vehicle such that it is ineffective under vertical accelerations but sensitive to horizontal accelerations. Thus, it may be used to cause anti-roll correction, or to counteract pitching during braking or acceleration. Movement of the pendulum may be limited by stops 21.
Patent GB-1322961-A (GB)
Title: Automatic control apparatus
IPC: G05F1/10
Filed: 1970-08-27
Abstract: 1322961 Automatic control of temperature EASTMAN KODAK CO 27 Aug 1970 [3 Sept 1969] 41351/70 Heading G3R In an automatic temperature control system a triac 42 (Fig.1) is fired and shunts resistors 18, 19, 20 thereby increasing the current through a heater element 14 when a temp. to be controlled and as sensed by a thermistor 44 falls below a predetermined level set on a variable resistor 19. During positive half-cycles a transistor 22 conducts and during negative half cycles transistor 24 conducts completing alternately a current path including R30 diode 26 or 28, and thermistor 44. The higher the temp. sensed the lower the resistance of 44 and the higher the current through and voltdrop across R30, and the lower the potential applied to the gate of a diac 40 and vice versa. When the sensed temp. level is such that this potential attains the threshold level of diac 40, the diac fires and in turn fires the triac 42. The heater is fed via R18, R19, R20 when the triac is OFF. In another embodiment Fig. 2 (not shown) when the triac is fired it causes energization of a solenoid switch opening the switch and thereby turning off a fan motor. A further pair of transistors are included to increase the sensitivity of the circuit to the temperature sensed. By means of a selector switch a high or low temperature range may be pre-selected and a desired temp. value in one or other range pre-set. A filter including R32, C34 and C36 prevents firing of the diac due to spurious transients. A resistor 16 diverts a portion of the heater current from the central portion of the heater element 14 to prevent overheating thereof and ensure a more uniform generation of heat along the heating element. The applications to apparatus for developing sensitized paper by heating, and to the control of the temperature of a space or enclosure by cooling, are suggested.
Patent GB-857313-A (GB)
Title: Apparatus utilising transistors for detecting a change in the sign of the slope of an electrical waveform
IPC: G06K7/08
Filed: 1958-12-22
Abstract: 857,313. Transistor waveform shaping circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 22, 1958 [Dec. 24, 1957], No. 41356/58. Class 40(6). [Also in Group XIX] A transistor circuit for detecting a change in the sign of the slope of an input wave-form comprises a transistor to different electrodes of which the input, a condenser and a load impedance are connected with an asymmetrically conductive device connected across the electrodes to which the input wave and the condenser are connected. Figs. 1 and 2 show the application to a reading- out circuit for a magnetic tape 1 on which binary digital information has been recorded. Where the magnetic record is in the form of sharply defined bits an approximately sinusoidal voltage is derived from the coil 3 of reading head 2 and is passed via an emitter follower stage 4 comprising an NPN transistor 5 to produce a wave-form 19, Fig. 2, on lead 18 of a slope detector 10. During the period when the input wave-form is positive NPN transistor 11 conducts and capacitor 17 charges with its left-hand terminal positive. When the potential at wire 18 reverses and commences a negative excursion transistor 11 is cut-off so that the output at terminal A is as shown at 21, Fig. 2. When wave-form 19 goes negative transistor 11 is cut off and PNP transistor 12 conducts to discharge capacitor 17 which is then charged negatively so that the potential of the left-hand terminal of capacitor 17 follows closely the potential of the input wave form at 18 as shown at 20, Fig. 2. Thus an output 22, Fig. 2, is produced at terminal B from transistor 12. As shown in Fig. 2 the slope detector 10 responds rapidly to change in the sign of the slope of the input wave form at 18. If biased discrete pulses are recorded on the magnetic tape as shown at 27, Fig. 4, so that a reading-out voltage as shown at 28 is produced at the reading head only one output A is required from the slope detector to produce the output pulses 29, Fig. 4. When a biased discrete pulse system is used the transistor 12 of Fig. 1 may be replaced by a diode rectifier Fig. 5 (not shown) Figs 6 and 7 show circuits for reading out binary data recorded on a NRZI (non-return to zero) system. As shown in Fig. 7 binary data produces a voltage 31 in the read-out head coil 3 and it is necessary to stretch the pulses from the slope detector so that the circuit gives an output only when the input shifts from either a negative to a positive or from a positive to a negative slope. This is done by the provision of two single-shot multivibrator circuits SS 33, 36 and AND gates 34, 37 and OR gate 38. As shown in Fig. 7 the circuits 33, 36 are given a sufficiently long recovery time to span any "dead spots" so that output pulses are produced from the OR gate 38 only in dependence upon presence of binary 1 signals recorded on the magnetic tape.