baber/WOPTO huggingface dataset:
Patent GB-276768-A (GB)
Title: Process for the manufacture of new vat dyes
IPC: C09B3/36
Filed: 1926-06-21
Abstract: 276,768. British Dyestuffs Corporation, Ltd., Baddiley, J., Shepherdson, A., and Thornley, S. June 21, 1926. Dibenzanthrone dyes.-The dyestuffs obtained by alkali fusion of benzanthrone sulphonation products, as described in Specification 276,766, are treated with alkylating agents, or first with oxidizing agents and then with alkylating agents; the oxidized products may be treated with reducing agents prior to alkylation. According to examples, (1) the alkali-fusion product of sulphonated benzanthrone (hydroxydibenzanthrone) is treated with dimethylsulphate in nitrobenzene; the methylation product dyes cotton in blue shades from the vat; (2) the same hydroxydibenzanthrone is oxidized with manganese dioxide in sulphuric acid, reduced by boiling with bisulphite solution, and methylated; the product dyes cotton in greenish-blue shades: the oxidation product and its reduced derivative also dye cotton, but the green shades so obtained are not fast to acid and alkali.
Patent GB-612314-A (GB)
Title: Hydrogenation of 2:3-dihydropyran-5-carboxylic acid salts
Filed: 1945-06-20
Abstract: Salts of tetrahydropyran-3-carboxylic acid are prepared by the hydrogenation of the corresponding salt of 2 : 3-dihydropyran-3-carboxylic acid in the presence of a hydrogenation catalyst containing platinum, cobalt or nickel either at atmospheric temperature and pressure or within the pressure range of 10 to 1000 atmospheres and temperature range of 30 DEG  to 200 DEG  C.  The preferred reaction conditions when using nickel or cobalt containing catalysts are at 250 atmospheres pressure and at 100 DEG  to 130 DEG C. temperature.  For continuous operation, foraminate nickel or cobalt catalysts are preferred. The reaction may be effected in the presence of a solvent containing no unsaturation and which will remain unchanged during the course of the reaction, e.g. water or decahydronaphthalene. Tetrahydropyran - 3 - carboxylic acid may be prepared from its salt by acidification.  In an example, 2 : 3-dihydropyran-3-carboxylic dissolved in aqueous caustic soda is hydrogenated to yield the sodium salt of tetrahydropyran-3-carboxylic acid, and the free acid liberated by the addition of hydrochloric acid.  Specifications 435,461 and 611,987, [Group III], are referred to.
Patent GB-649297-A (GB)
Title: A process for coagulating dispersions of substances of high molecular weight
IPC: C08C1/15
Filed: 1948-06-10
Abstract: Aqueous dispersions of ethenoid polymers and copolymers, particularly those obtained by the emulsion polymerization of polyvinyl chloride, are coagulated with an alcohol which under the coagulating conditions is liquid, miscible with water to a limited extent and which does not dissolve or only slightly dissolves the dispersed substance, so much of the alcohol being added as to ensure the formation of a separate liquid phase, the quantity of alcohol in proportion to the quantity of dispersion being selected so as to leave a clear aqueous phase after the settling of the coagulum.  A larger quantity of the alcohol may be first added and subsequently so much of the alcohol removed, preferably by distillation, that after settling of the coagulum the aqueous phase is clear.  The alcohol used is preferably isoamyl alcohol.
Patent GB-822979-A (GB)
Title: Improvements in the electrodeposition of metals
Inventor: AIKEN JOHN KEMPTON
IPC: C25D3/02
Filed: 1957-05-17
Abstract: 822,979. Electrodeposition of metals. GEIGY CO. Ltd. Feb. 21, 1958 [May 17, 1957], No. 15723/57. Class 41. Metals which form complexes with amino- or polyamino-polycarboxylic acids are electrodeposited from an aqueous bath containing a complex with hydroxycyclohexyl - ethylenediamine-triacetic acid of said metals. Two or more such metals may be codeposited to form an alloy. The bath pH may be from 2 to 12 and 1 to 3 molecules of complexing agent may be employed per metal atom. Brighteners and wetting agents may be added. Soluble anodes may be used. Acid baths may be used consisting of an aqueous solution of a complex of the metal with the complexing agent. Examples are given of bright plating on zinc plates or zinc base die-castings with copper, on steel with cadmium zinc or lead, and on copper with nickel from chloride baths at 60‹ C. containing about 10 g./l. of metal rendered alkaline with sodium hydroxide at current densities of 25 amps./sq. ft. with stirring of the bath. Specifications 718,574, 737,713 and German Specification 731,102 are referred to.
Patent GB-359877-A (GB)
Title: Improvements in or relating to the plaiting down and saturating of piece goods in cisterns
IPC: D06B23/00
Filed: 1931-05-29
Abstract: <PICT:0359877/IV/1> A plaiting down and saturating machine for piece goods in cisterns such as are employed for bleaching, comprises a carriage 15 adapted to be traversed on girders 12, 13 over the cistern 4 and carrying guide means 19 for the fabric F adapted to oscillate automatically by means of the screw 39 and link 43 across the direction of transverse of the carriage.  The cloth passes over a wince 5 which is driven by a centrifugal clutch so that if a drag occurs on the cloth the clutch becomes disengaged and the wince stops.  Liquid is supplied to the cloth in the funnel 17 by a flexible pipe 46.
Patent GB-673566-A (GB)
Title: Improvements in the manufacture of stockings and the like articles of hosiery
IPC: D04B9/46
Filed: 1950-06-23
Abstract: 673,566. Knitted stockings: GARRIC, J. June 23, 1950 [Sept. 7, 1949], No. 15786/50. Class 74 (ii). On a straight-bar knitting-machine, immediately before beginning the outward transfer of loops over the whole width of the heel parts a widened area a2, A<SP>2</SP>, A<SP>1</SP> is produced at each side of the blank by outward transfer of a few marginal loops only in each of a number of courses. The narrowing points are then racked in to co-operate with the needles over the width A<SP>2</SP>, A<SP>3</SP> and the heel parts are formed by outward loop transfer in the usual way. The heel part, on each side, is thus increased by the area A<SP>2</SP>, B<SP>2</SP>, C2, C<SP>1</SP>, B<SP>1</SP>, A<SP>1</SP>. The width of the transfer point plates is sufficient to accommodate the additional points necessary.
Patent GB-849289-A (GB)
Title: Improvements in or relating to coal-cutters and tool-carrying chains therefor
Inventor: PROCTOR SIDNEY ERNEST
IPC: E21C25/28
Filed: 1958-05-16
Abstract: 849,289. Mineral-mining equipment. HOY & CO. Ltd., A. May 12, 1959 [May 16, 1958], No. 15862/58. Addition to 803,892. Class 68(1). [Also in Group XXV] Links 27 for tool-carrying chains of mineralmining machines are provided on the sides with rollers 31 that run on guide rails 17, and each roller 31 has a pair of oppositely inclined faces that co-operate with complementarily inclined faces on the guide rails to ensure centring of the rollers on the guide rails.
Patent GB-669654-A (GB)
Title: Escapement
IPC: G04B15/02
Filed: 1949-01-15
Abstract: 669,654. Clocks and watches. JEANNERET, H. June 15, 1949 [June 30, 1948], No. 15905/49. Class 139. An escapement comprises a balance having an aperture formed with two shoulders and a roller which engages the shoulders alternately to impart impulses to the balance. A pinion 2, Figs. 1 and 2, driven from the main spring is mounted on a staff 9 carrying two parallel plates 3, 4 which rotatably support a roller 19. The roller 19 enters an aperture 16 in the balance 5 and cooperates alternately with two impulsing faces or shoulders 10 and 11 of the aperture 16 which is also provided with locking faces 7, 8. A helical spring 6 serves to return the balance 5 and its tension may be adjusted either by moving its support 14 along the plate 18 or its balance attachment screw 13 into the desired hole 22. The spring 6 may be replaced by an ordinary spiral hair spring, Fig 3 (not shown).
Patent GB-110936-A (GB)
Title: Manufacture of Metal Albumin Combinations.
Inventor: IMRAY OLIVER
IPC: C07K14/76
Filed: 1916-11-07
Abstract: 110,936. Imray, O., (Soc. of Chemical Industry in Basle). Nov. 7, 1916. Metal-albumen compounds are obtained by treating, with a metal or metal compound, albumens, nucleoproteids, or their derivatives, prepared from animal or human organs or tissues in physiologically or pathologically modified or infected condition; examples of such organs or tissues are the placenta, cancerous or syphilitic ulcers, tuberculous testicles, lungs, livers, kidneys, or the blood therefrom; the products obtained by degradation by chemical or enzyme action of cancerous or tubercular albumens are also suitable parent substances. The products contain the metal in masked form, and on decomposition by suitable enzymes, the metal is freed and can be tested by the usual reagents; the products can thus be employed for the diagnosis of pregnancy or diseases in which such enzymes occur; they may also be used for the detection of proteolytic enzymes generally and for therapeutic purposes. According to examples :-(1) A placenta is freed from blood, comminuted, freed from fat, and boiled with distilled water until the washing water ceases to show the ninhydrin reaction; the purified product is suspended in water and treated with ferric chloride solution; the resulting iron-albumen compound is washed, immersed in acetone, drained, and dried; (2) cancerous ulcers are treated similarly and the iron compound of the albumen prepared; copper, silver, mercury, or gold compounds also are specified. Examples are given also of the application of the iron-or copper-placenta albumen compounds in the diagnosis of pregnancy.
Patent GB-170805-A (GB)
Title: Improvements in or relating to vehicles wheels and pneumatic tyres therefor
IPC: B60B9/20
Filed: 1921-06-10
Abstract: 170,805. Alcock, E. L. June 10, 1921. No Patent granted (Sealing fee not paid). Spring wheels.-A hollow wheel body consists of a pair of dished discs a welded to a hub ring b, a rubber-lined casing d being clamped to the flanged edges c of the discs by rings f and bolts g. An outer cover h having beaded edges m is secured by side flanges and transverse bolts k. An inflating-. valve (not shown) is fitted to one of the discs.
Patent GB-1309596-A (GB)
Title: Autolysis product of fish and process for its manufacture
IPC: A23J3/30
Filed: 1970-04-03
Abstract: 1309596 Autolysis products of fish and crustacea G LAMOTTE 3 April 1970 [4 April 1969] 16094/70 Heading A2B A process for preparing an autolysis product comprising biological principles including at least one growth factor, and free amino acids with or without polypeptides and being free of oil and ammoniacal nitrogen, comprises subjecting fish entrails or a mixture of fish entrails with fish or crustacea in the ground state to autolysis at an initial pH of at least 4 at a temperature of 40-60C with stirring, stopping the autolysis by cooling when the pH has reached about 6.5 and separating a liquid autolysis product from the resulting mixture of liquid autolysis product and insoluble autolysis products, all the operations being carried out in the absence of an antiseptic. The separated product may be concentrated in a vacuum dried to a paste or powder. Hydrochloric or acetic acid may be used in the process. The separating may be made by filtration or centrifugation. The process is preferably carried out in an inert atmosphere, e.g. CO 2 . Terpenes, e.g. from lemon, orange or pineapple juices, may be added to the material to be autolysed. The product may comprise aspartic acid, alanine, arginine, cysteine, cystine, glutamic acid, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tyrosine and valine.
Patent GB-455904-A (GB)
Title: Improvements in and relating to refrigerators
IPC: F25D19/02
Filed: 1936-06-09
Abstract: 455,904. Refrigerators. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. June 9, 1936, No. 16133. Convention date, June 11, 1935. [Class 29] [See also Group X] A refrigerator is provided with a heatinsulated cooling compartment 14 having means utilizing heat from the refrigerating- machine for inducing a circulation of air from the compartment. For example an outlet pipe 32 from the compartment is soldered to the compressor casing 26 of the machine. The warmth of the casing stimulates convection circulation through pipe 32 and this is aided by an entrainment effect due to the upward flow of air over the condenser 27 of the machine. Air is admitted to the compartment 14 through pipe 29. Alternatively a gap is provided in the gasket sealing the door 16 of the compartment to permit a limited entry of air.
Patent GB-272052-A (GB)
Title: Improvements in driving gear for overhead railway cars
IPC: B61B12/02
Filed: 1926-06-26
Abstract: 272,052. Stedefeld, C., and Kruckenburg, F. June 26, 1926. Addition to 264,776, [Class 103 (iv), Railway &c. vehicles, Body details &c. of]. Gearing with provision for permitting flexure. In running gear for high-speed suspension railway vehicles as claimed in the parent Specification, in which a rail wheel is mounted at the end of an arm e pivoted at d to the frame, a gear-wheel b is mounted on the axle of the rail wheel and is driven by another gear-wheel c co-axial with the arm pivot d, so that the gearing is unaffected by movement of the arm due to the flexure of the suspension spring g. Two running wheels may be driven, each through a. similar train of gearing. Spring drives and resilient couplings.-The rail wheel is driven through resilient means comprising any of the following constructions, (1) the gear-wheel b, c may be connected to their shafts through the spring couplings k, l shown in Fig. 4, (2) the rim of a gear-wheel may be connected to its hub by two spiral springs m<1>, m<2>, Figs. 5 and 6, the rim being positioned relatively to the hub by side plates r which may also be used with friction plates s to damp the spring movement, the springs in this case being normally not flat spirals, (3) the gear-wheel c may be driven through a co-axial helical spring or through a shaft having the requisite, torsional elasticity. Specification 13926/91 is referred to.
Patent GB-307868-A (GB)
Title: Process and apparatus for the continuous extraction of acetic acid from its aqueous solutions
IPC: C07C51/48
Filed: 1928-06-02
Abstract: 307,868. Soc. Anon. des Distilleries des Deux-Sevres. March 15, 1928, [Convention date]. Extracts, making.- Acetic acid is extracted from aqueous solutions thereof, for example solutions obtained in the manufacture of cellulose acetate, by passing the solution, in countercurrent to an extracting medium such as amyl acetate, through multistage apparatus, each stage of which comprises a mixer, in which the two phases are thoroughly emulsified, and a settling vessel in which they are allowed to separate, the enriched extraction medium being then passed to the one and the solvent to the other adjacent stage. The apparatus may be carried out at temperatures above or below atmospheric temperatures and at pressures greater or less than normal. The stages of the apparatus may be arranged in one or more rows, in circular formation, or the mixing and settling elements may be superposed to form two towers or may be combined into a single tower. Circulation of the fluids may be effected by pumps, by compressed gas or, as regards one of the phases, by gravity. The mixing apparatus may be made to serve as a pump for this purpose. As illustrated, the apparatus comprises mixing vessels M1 - - M5 and settling vessels D1 - - D5. The solution to be extracted, for example a 10 per cent aqueous solution of acetic acid, is delivered to mixer M5 through a pipe 34 and the extracting medium M1 through a pipe 36. The liquids pass in opposite directions through the apparatus, being at each stage thoroughly emulsified in the mixing vessels' and then delivered to the separating vessels. After separation the upper layer containing amyl acetate enriched with acetic acid is passed through pipes such as 10, 22 to the next lower mixing vessel and the lower layer is delivered through vessels G1 - - G5 and pipes such as 23, 24, 27 to the next higher mixing vessel. Delivery of the lower layer is effected by the injection action of compressed air supplied through pipes 25 from a reservoir 26. The used air is trapped in vessels HI - - H5 and delivered through pipes 28, 29 to a reservoir 30 whence it is returned in compressed condition to the reservoir 26 by a pump 31. The extractladen solvent is delivered from the apparatus by a pipe 33 and the extracted solution by a pipe 35. Where the solution contains precipitatable solid matter such as cellulose acetate this solid matter remains at the top or bottom of the setting vessels or at the surface of separation of the two liquids and may be removed as by periodical cleaning of the vessels. The Specification as open to inspection under Sect. 91 (3) (a) describes the invention as applicable to the extraction in general of substances dissolved in solvents, by means of extracting media insoluble or substantially insoluble in the solvent. This subject-matter does not appear in the Specification as accepted.
Patent GB-1400325-A (GB)
Title: Heart pacemaker
IPC: H02J9/06
Filed: 1973-04-04
Abstract: 1400325 Heart pacers SEIMENS AG 4 April 1973 [4 April 1972] 16215/73 Heading A5R A heart pacer comprises a circuit 9 for producing heart-stimulating pulses, energy sources, and switching means 5-8 which connect the energy sources to the circuit 9 in cyclic sequence. The energy sources are batteries 1, 2 connected in parallel and, via diodes 3, 4 to an astable multivibrator 5 and a bi-stable multivibrator 6 and directly to respective switches 7, 8 which may be transistors. The astable multivibrator 5 causes the bi-stable multivibrator 6 to alternately cause the switches 7, 8 to connect the batteries 2, 1 respectively to the circuit 9, with an alternating frequency equal to or less than the heart stimulation frequency which is equal to the output frequency of the circuit 9 (about 60 pulses per second) which is also controlled by the astable multivibrator 5. If the voltage of the battery connected to the circuit 9 drifts outside a predetermined range, a voltage comparator 11 provides a signal to the bistable multivibrator 6 to prevent it from switching in the defective battery. Alternately, the voltage comparator 11 may permanently prevent the connection of a battery if such connection would result in the voltage across the circuit 9 to lie outside the said range. The voltage comparator 11 also provides a signal to the astable multivibrator 5 to reduce its frequency to a predetermined low value when a defective battery is present. More than two batteries, switches etc may be provided, in which case the bistable multivibrator 6 is replaced by a binary counter.
Patent GB-219671-A (GB)
Title: Mechanically operated razor
IPC: B26B19/18
Filed: 1924-07-05
Abstract: 219,671. Beaulieu, P. Fortier-. July 26, 1923, [Convention date]. Hair-clippers.-A mechanically-operated safety razor comprises a member formed from two serrated end discs b, Figs. 1 and 2, connected by blades e secured in place by screws, such member being pivoted upon members l, carrying a guard k by screws h, and being rotated through bevels j<1>, j by a flexible cable i driven e.g. from an electric motor suspended by its conducting wires from a suitable plug. The guard-carrying members l are adjusted with reference to the blade-carrying member bv means of screws n engaging turned-over ends l<1> of the members l, the screws h carrying the rotating member being carried by lugs m mounted rigidly on a bridge-piece. The rotating member may in some cases carry only two blades, as shown in Fig. 5; in further alternatives, the blades c are carried in recesses in a solid cylinder, the blades being either as shown in Fig. 2, or being arranged helically. In the latter case, the blades in the two halves may be arranged in opposite directions, as shown in Fig. 7. The blades may also be fixed in grooves in the cylinder by wedge-shaped plates of soft metal. The blades may be perpendicular to the cylinder or may be arranged approximately tangentially. The blade-carrying member may be reversed in its pivots for stropping.
Patent GB-396528-A (GB)
Title: Improvements in amusement or exercising devices
IPC: A63G15/00
Filed: 1932-06-08
Abstract: 396,528. Horse velocipedes. KINGSMAN, E., St. Brelades, Clacton-on-Sea. June 8, 1932, No. 16220. [Classes 136 (ii) and 136 (iii).] In a horse velocipede of the type comprising a pair of spring-controlled levers pivoted together and provided with one-way ground wheels at their lower ends, a progressive movement being obtained by the intermittent action of the weight of the rider on a saddle or seat, the saddle has an independent pivotal mounting on one lever and is supported freely on the upper part of the other lever. The velocipede comprises a main part or lever 1, which may be in the form of a horse, and another lever formed of stays 2 pivoted to the part 1 at 3, its upper end engaging, by means of a roller 26, a saddle 24 pivoted at 25 to the part 1. The lower end of the part 1 is mounted by means of a block 6 on the axle 8 of wheels 9, which are prevented from rotating backwards by a one-way clutch, such as a ratchet 10 and pawl 11. The stays 2 are mounted by means of a bracket 14 and a crossmember 12 on the axle 19 of wheels 20, also provided with a one-way clutch 21, 22, the lower ends of the stays 2 bearing, through an antifriction ball 16, on the member 12. A progressive movement is obtained by the rider placing his weight alternately on the saddle 24 and on foot-rests at the ends of the crossmember 12, the pivoted parts 1, 2 being thus alternately separated and drawn together, a tension spring 23 effecting the latter movement. Steering is effected by moving the parts 12, 14 about a pin 15 by the action of the feet on the foot-rests.
Patent GB-544497-A (GB)
Title: Improvements in the manufacture of rust preventives or protective coatings for metals
IPC: C09D191/00
Filed: 1940-11-11
Abstract: 544,497. Modified wool fat. SMITH, H W., and CAMPBELL, S. G. Nov. 11, 1940, No. 16341. [Class 91] The free fatty acids in wool grease, particularly Bradford Sewage Grease, are combined with magnesium to obtain a neutral grease for use as a protective coating for metallic or non- metallic surfaces, in particular as a rust preventive. The insoluble magnesium soap so formed is a waterproofing and hardening constituent of the grease. To obtain complete neutralization of the fatty acids the grease is first neutralized with an alkali, such as an aqueous solution of caustic soda, caustic potash or ammonia, to give a water soluble soap and then the insoluble magnesium soap is precipitated by addition of excess of a water soluble magnesium salt. The grease may be pre-treated with bleaching and deodorizing agents. Direct addition of magnesium salts may be made, only partial neutralization of the fatty acids resulting, the magnesium compounds used preferably effecting bleaching or deodorizing simultaneously, e.g. magnesium peroxide, magnesium chlorate, magnesium chloride with sodium chlorate which forms basic magnesia when the mixtures are heated. In carrying out the indirect method of neutralization, the grease is mixed with water and heated to about 60‹C., and after addition of the alkali followed by the magnesium salt, such as magnesium sulphate, the mixture is boiled. In the direct method, the grease and magnesium compounds are heated together to about 150-200‹C. or in water to 100‹C. by means of live steam. The neutralized grease may be used as a solid grease smeared over the article or the latter may be dipped in the molten material; the grease may be used dissolved in solvents such as white spirit or it may be softened to a petroleum jelly-like substance by admixture with an oil, such as gas oil. Further, the ordinary form and the petroleum jelly-like form of the grease may each be prepared in forms having crystalline, smooth pasty, or soft greasy consistencies by slow cooling in bulk, rapid cooling in film form, or by de-hydration prior to cooling in bulk respectively. Specifications 507,335 and 507,336 are referred to.