baber/WOPTO huggingface dataset:
Patent GB-758397-A (GB)
Title: Improvements in or relating to natural or synthetic rubber composition and a method of compounding same
IPC: C08K5/36
Filed: 1954-04-28
Abstract: In a method of compounding with additives a natural or synthetic rubber having a high viscosity and/or nerve, the viscosity and/or nerve of the rubber is/are reduced prior to the addition of most or all of the other additives by working it, at a temperature between room temperature and 240 DEG  F., with a reaction product of tall oil and sulphur containing 1 to 25 per cent of sulphur based on the weight of tall oil, so that the reaction product is substantially completely dispersed in the rubber, whereafter the rubber is further worked with the or most of the other additives.  The sulphurized tall oil may be added in liquid state at a temperature of 120 DEG  to 180 DEG  F., and may be prepared by heating tall oil with 8 to 10 per cent by weight of sulphur at 300 DEG  to 400 DEG  F., preferably 310 DEG  to 330 DEG  F., until no free sulphur remains.  As examples are described the preparation of compounds containing sulphurized tall oil and natural rubber, butadiene acrylonitrile copolymer, chlorosulphonated polyethylene, and chloroprene, respectively.  A compound including butadiene acrylonitrile copolymer and sulphurized tall oil is stated to be very compatible with other elastomers such as natural rubber, butadiene-styrene copolymers, and chloroprene.ALSO:In a method of compounding with additives a natural or synthetic rubber having a high viscosity and/or nerve, the viscosity and/or nerve of the rubber is/are reduced prior to the addition of most or all of the other additives by working it, at a temperature between room temperature and 240 DEG F., with a reaction product of tall oil, so that the reaction proper cent of sulphur based on the weight weight of tall oil, so that the reaction product is substantially completely dispersed in the rubber, whereafter the rubber is further worked with the or most of the other additives. The sulphurized tall oil may be added in liquid state at a temperature of 120 DEG  to 180 DEG F., and may be prepared by heating tall oil with 8 to 10 per cent by weight of sulphur at 300 DEG  to 400 DEG F., preferably 310 DEG  to 330 DEG F., until no free sulphur remains.  In one example 7 parts of sulphurized tall oil are mixed on a roll mill with 85 parts smoked sheets, after which are added and worked in sequence, 3 parts stearic acid, 50 parts carbon black, 16 parts of a master batch including zinc oxide, antioxidant, and smoked sheets, and 7.8 parts of a master batch comprising sulphur and smoked sheets.  As other examples are described the preparation of compounds containing sulphurized tall oil and butadiene acrylonitrile copolymer, chlorosulphonated polyethylene, and chloroprene, respectively.  A compound including butadiene acrylonitrile copolymer and sulphurized tall oil is stated to be very compatible with other elastomers such as natural rubber, butadiene-styrene copolymers, and chloroprene.
Patent GB-822657-A (GB)
Title: Process for the manufacture of isopropenyl acetate
IPC: C07C69/145
Filed: 1957-04-15
Abstract: Polyphosphoric acid having a P2O5 content of 82.5% is obtained, according to an example by adding diphosphorus pentoxide gradually to phosphoric acid of 85% strength, while stirring and cooling, then heating the mixture for 3 hours, while stirring, on a boiling water bath with the exclusion of moisture.ALSO:Isopropenyl acetate is manufactured by reacting ketene with acetone in the presence of polyphosphoric acid (see Group III) as catalyst, the catalyst preferably being used in a proportion of 0.5 to 2.5 per cent calculated on the weight of acetone.  In a batch process using pure acetone the reaction temperature is initially 56 DEG  C. and rises to 96 DEG  C. when the reaction is complete, giving an indication of the progress of the reaction. The process may be effected in continuous manner using as the initial charge a mixture of acetone and isopropenyl acetate which boils at the desired reaction temperature in the range 75 DEG  to 85 DEG  C.  Fresh acetone is run in at the rate at which the acetone and ketene react, and at a constant temperature a mixture of isopropenyl acetate and acetone of constant composition is run off.  The molecular ratio of acetone to ketene may be about 1 : 1.  In examples, (1) and (2) describe a batch process in which acetone containing polyphosphoric acid is heated to boiling and ketene is introduced while stirring vigorously, and the reaction mixture is fractionally distilled to give isopropenyl acetate, and unreacted acetone with acetic anhydride as a by-product; (6) describes a continuous process as described above; (3), (4) and (5) are comparative examples using sulphuric acid or phosphoric acid as the catalyst.
Patent GB-211047-A (GB)
Title: An improved self-locking lock for axle-box covers
IPC: B61F15/26
Filed: 1923-05-09
Abstract: 211,047. Alexander, R. D. T. May 9, 1923. Covers.-A self-locking lock for an axle-box cover, of the kind which is opened by a pivotal movement in its own plane, comprises a casing A, attached to or integral with the cover P, in which is mounted a spindle carrying a tongue F held by a spring G in its locking position projecting through a slot Px in the cover to engage a lip H on the top edge of the axle-box. The spindle has a cylindrical head B, a square shank C carrying the tongue F, and a threaded portion E. The thread E is adapted to be engaged by a key Q, Fig. 5, which has a barrel Qx fitting the keyhole L, which is closed by a cover K secured by a sealing-wire J. A spring M between the head B and a screwed plug N prevents a pipe or the like being forced on the screw E for opening the lock. The relative diameter of the keyhole L and the screw E are such that the screw cannot be gripped by pliers or the like.
Patent GB-734974-A (GB)
Title: New process for the dyeing of threads and films from acrylonitrile polymers or copolymers
IPC: D06P7/00
Filed: 1953-05-05
Abstract: In the manufacture of filaments, threads, artificial horsehair, tows, films and foils of polymers or copolymers of acrylonitrile, the shaped products are submitted to the action of at least one dye or compound capable of giving rise to a dye between the commencement of drawing the product in a wet medium and the first drying following the drawing.  Thus the dye may be applied in the drawing bath, or immediately following drawing, or after storing the shaped product in a wet state, or in an oiling or other subsequent liquid treatment bath.  The "wet" drawing medium includes water, aqueous solutions and organic liquids containing hydroxyl groups.  Dyeing may be effected at temperatures below 100 DEG  C., even at ambient temperature, and azo, vat, substantive, acid or diazotizable plastosoluble dyestuffs, including components thereof giving rise to a dyestuff by, for example, oxidation, reduction, diazotization, and acid or alkaline treatment, may be applied.ALSO:In the manufacture of filaments, threads, artificial horse hair, tows, films and foils of polymers or copolymers of acrylonitrile, the shaped products are submitted to the action of at least one dye or compound capable of giving rise to a dye between the commencement of drawing the product in a wet medium and the first drying following the drawing.  Thus the dye may be applied in the drawing bath, or immediately following drawing, or after storing the shaped product in a wet state, or in an oiling or other subsequent liquid treatment bath.  The "wet" drawing medium includes water, aqueous solutions and organic liquids containing hydroxyl groups.  Dyeing may be effected at temperatures below 100 DEG  C., even at ambient temperature, and azo, vat, substantive, acid or diazotizable plastosoluble dyestuffs, including components thereof giving rise to a dyestuff by, for example, oxidation, reduction, diazotization and acid or alkaline treatment, may be applied.
Patent GB-1527037-A (GB)
Title: Apparatus for successively operating upon a plurality of articles
IPC: B67C7/00
Filed: 1976-03-29
Abstract: 1527037 Feeding bottles to machines; rotary conveyers VICKERS Ltd 25 March 1977 [29 March 1976] 12616/76 Headings B8T and B8A Starwheel 2 feeds bottles to supports 4 to supply the operating heads 10 of, e.g. a rotary filling or capping machine, each support 4 moving upwards through the respective pocket of the starwheel until the bottle held thereby is engaged with the respective operating head and the star wheel and corresponding guide 3 are disengaged from the bottle. Continuous support is thus ensured for the bottle. A similar arrangement is provided to move the bottles from the operating heads into pockets of another star wheel.
Patent GB-378019-A (GB)
Title: Breaking-down saws
IPC: B27B3/12
Filed: 1931-04-29
Abstract: 378,019. Saws. SMITH, S. W., 97, Abbey Road, Torquay.-(Smith, E. W. ; Coff's Harbour Jetty, New South Wales, Australia.) April 29, 1931, No. 1266 8. [Class 145 (ii).] The saws 5 are secured to members 7, 8 carried on the radial arms 9, 11 which are keyed to the shaft 13, 14. Similar arms 24, 25, spaced apart by the rod 27 which resists the tension applied to the saws, are also connected to these shafts. The saws are reciprocated by the connecting - rods 29. In a modification only one saw is used.
Patent GB-1287078-A (GB)
Title: A device for recording the occurrence of electrical contact
Inventor: JONES DAVID LLEWELLYN
IPC: G01R31/02
Filed: 1971-05-03
Abstract: 1287078 Detecting when two electrodes touch each other STANDARD TELEPHONES & CABLES Ltd 3 May 1971 12676/71 Heading G1U Electrical touching of two electrodes (not shown) connected to terminals C1, C2, Fig.3, is detected by arranging that connection of the terminals (by an impedance of 100 ohms or less) fires a transistor T thereby causing current to flow through an electrolytic indicator cell, which current is maintained even though the terminals are subsequently disconnected. The electrolytic cell comprises two nickel electrodes 8, 9, Fig.2, a saline electrolyte 13 which also contains an indicator such as thymol blue or phenolphthalein, and a piece of white filter paper 12. The passage of current through the cell releases hydrogen which raises the alkalinity of the electrolyte thereby causing a colour change of the indicator which is made more visible by the filter paper 12. The device is said to be particularly useful in detecting rough handling of multi-electrode valves in transit. The device is packed with the valve with terminals C1, C2 connected to alternate electrodes of the valve. If during transit the valve is so roughly handled that two electrodes make contact with each other, even momentarily, the thyristor is fired and the indicator will change colour, thereby warning the recipient of a possible mechanical fault in the valve.
Patent GB-866256-A (GB)
Title: Improvements in and relating to the deposition of particles from mists, smokes and aerosols
Inventor: FOSTER WILLIAM WARWICK
IPC: A23B4/056
Filed: 1956-04-25
Abstract: In a method of preserving or flavouring foodstuffs by depositing on them particles of smoke, mist or aerosol, e.g. wood smoke, the particles are electrically charged at spaced intervals in the path of the smoke, mist or aerosol and are deposited in a space, or spaces, free of an externally-applied electric field. The smoke may be introduced at spaced points along the length of the charging zone, or may be passed through different lengths of the charging zone, or the speed of flow of the smoke may be varied.  The electric field may be rectified, unsmoothed A.C., or interrupted D.C.  Particular arrangements of charging and deposition zones are given (see Group XL (a)).  Specification 814,121 is referred to.
Patent GB-1184013-A (GB)
Title: Polyamide-Imide Compositions
Inventor: SILVERSTONE GERALD ALFRED
IPC: C08L63/00
Filed: 1968-03-18
Abstract: 1,184,013. Polyamides; curing epoxy resins. VICTOR WOLF Ltd. 18 March, 1968, No. 12874/68. Headings C3B and C3R. Polymers are obtained by reacting at an elevated temperature (a) the reaction product of maleic acid or anhydride with a fatty acid mixture obtained by dehydrating and hydrolysing hydrogenated castor oil or a mono-, di- or triester of such reaction product and a C 1-8   alcohol, with (b) a di- or polyamine. Dicarboxylic and monocarboxylic acids may additionally be used as co-reactants. The claims are restricted to processes wherein the product is a polyamide-imide. Several examples of the various reactants are given. The products are useful in film-forming applications, ink manufacture and adhesive compositions and as curing agents for epoxy resins. Reference is made to Specifications 1,147,510 and 1,184,014.
Patent GB-401293-A (GB)
Title: Improvements relating to the control of electric motors
IPC: B60L15/04
Filed: 1932-05-04
Abstract: 401,293. Control of D.C. motors. RAMSDEN, H. K., 26, Ashlands, Ashton-on- Mersey, COLLIS, W. B. G., The Rocklands, Clent, Worcestershire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. May 4, 1932, Nos. 12882 and 17317. [Class 38 (iii).] In a series parallel control system, the field windings F1, F2, of the motors A1, A2, are arranged to be automatically shunted by diverter resistances S1, S2, under the control of electrically operated switches FS1, FS2, the coils OCFS1, OCFS2, of which are so connected in the motor circuits as only to be effectively energised when the motors are motoring in parallel. The coils may be connected as shown between the supply T and a switch M which is closed only in the parallel positions. Alternatively the coils may be connected across the main supply in series with the normally open contacts of a relay, the coil of which is connected between the supply and the switch M. In a modification the coils OCFS1, OCFS2, or the coil of a relay controlling these coils may be connected across the switch JR open only in the parallel positions. In order to prevent the switches FS1, FS2, from closing during parallel rheostatic braking when their controlling coils are connected across the switch JR the connection of the switch JR may be changed from the line to the field side of the motor armature A2 during braking, 20 that the controlling coil, energised only by the field voltage of the motor A2, is ineffective.
Patent GB-1428065-A (GB)
Title: Vehicle seat with an armrest
IPC: B60N2/75
Filed: 1974-03-22
Abstract: 1428065 Vehicle armrests DAIMLER-BENZ AG 22 March 1974 [11 April 1973] 12882/74 Heading A4J An armrest 6 for a vehicle seat is pivotable between in use and out of use positions about a spindle 7 connected to a pair of brackets 8 fixed to the backrest frame 9, pivoting of the armrest being limited by stops 14 on the brackets 8 and being resisted by elastomeric material bodies 11  mounted on the brackets 8 and contacted by a pair of rollers 13 mounted on the ends of a spindle 12 passing through the armrest. Each body 11 is shaped to offer a resistance to pivoting which increases from a position intermediate the two limit positions of the armrest towards the two limit positions.
Patent GB-340909-A (GB)
Title: Improvements in or relating to elevator and conveyor chain driving mechanism
IPC: B65G43/00
Filed: 1930-04-26
Abstract: 340,909. Endless chain elevators. MOORHOUSE, H., 31, Shay Lane, Halifax, Yorkshire. April 26, 1930, No. 12889. [Class 78 (i).] In an endless chain elevator when the chain breaks the motive power is cut off by the descent of the weighted arm 10 of a bell-crank lever which opens a switch 12. The other arm 5 of the lever has a bearing face 6 which rests on the elevator chain 2. The arm 10 is connected through a link 14, lever 15 and rock-shaft 16 to an arm 13 which when turned clockwise comes into the path of the elevator cross-bars 3 and prevents the descent of the chain. Switch actuating gear may be provided for each run of the elevator.
Patent GB-877089-A (GB)
Title: Improvements in or relating to catalytic isoptoic exchange apparatus
Inventor: DENTON WILLIAM HAVELOCK
IPC: C01B4/00
Filed: 1957-04-24
Abstract: <PICT:0877089/III/1> A catalytic isotopic exchange apparatus used, e.g. for enriching depleted hydrogen with deuterium by reaction with steam, comprises a pressure vessel, a superheater arranged in a central region transversely thereof, a catalyst bed on each side of the superheater, a heat regenerator adjacent the side of each catalyst bed remote from the superheater, conduit means for supplying gas to either end of the vessel and valve means for periodically reversing the direction of flow of gas therein.  An embodiment of the apparatus is shown in Fig. 2, wherein on either side of the superheater 24 is a pair of catalyst beds 23a, 23b and a pair of heat regenerators 25a, 25b, all of which are surrounded by thermal insulation 26 within the vessel 27.  The packing for the heat regenerators may be steel ribbon for temperatures to about 600 DEG C. or ceramic particles for high temperatures, e.g. up to 1000 DEG C. For the specified reaction supported active Pt or Ni catalysts may be used.  Specification 869,415 is referred to and Specification 869,412 is referred to in the Provisional Specification.
Patent GB-997800-A (GB)
Title: Improvements in or relating to filing cabinets
IPC: B42F15/00
Filed: 1962-04-05
Abstract: 997,800. Filing papers. ULRICH PLANFILING EQUIPMENT CORPORATION. April 5, 1962 [Jan. 29, 19621, No. 13118/62. Heading B6E. A filing cabinet is divided into compartments 21 by pairs of strip-like partitions 22, 23 suspended from carrier rails 16, each partition 22 carrying leaf springs 38, which engage the associated partition 23, whereby papers filed in the compartments 21 are maintained upright by the spring pressure of adjacent partitions. Each partition 22 is fixed in position by a bracket 31 engaging an aperture in a bar 26. The latter extends from front to back of the cabinet. Adjacent partitions 22, 23 are joined by canvas strips 28. Each compartment 21 is defined by several pairs of partitions spaced transversely of the cabinet. The carrier rails 16 have rollers 17 at each end running in guides 18. A shelf 13 is hinged to the front of the cabinet and supported in the position shown by brackets 14.
Patent GB-1530688-A (GB)
Title: Sound reproduction system
IPC: A61H23/02
Filed: 1976-04-01
Abstract: 1530688 Sound reproduction systems BODYSONIC KK I April 1976 [8 April 1975 31 Jan 1976 (2)] 13218/76 Heading H4J The framework of a seat (sofa, bed, chair, etc.) is vibrated by the shaft 6 of an electromagnetic transducer supplied with a signal the electrical equivalent of sound produced by reproduction apparatus 23, 24. Signals up to 150 Hz are thereby perceived through the body. The transducer yoke carries annular dampers 10, 11 coupling the magnetic assembly 5 to the shaft 6 and coil former 13. Detailed frameworks are described with respect to Figs. 4-12, not shown.
Patent GB-1107595-A (GB)
Title: Improvements relating to patterning mechanisms for knitting machines
IPC: D04B15/78
Filed: 1965-03-29
Abstract: In a multifeed knitting-machine needles may be selected electromagnetically and raised to a predetermined height at any one of at least two points before each knitting station.  Needles, or their associated jacks are urged upwards by springs, when a retaining member is deflected by an electromagnet as described in Specification 1,089,914.  The jacks either raise the needles directly by means of cams or raise the needles into the path of lifting cams.
Patent GB-132439-A (GB)
IPC: F02M17/28
Abstract: 132,439. Veulle, F. H. de. Feb. 19, 1919. Carburetting. - A wick carburettor for an internal-combustion engine comprises wicks E of fabric or porous porcelain, carbon, &c. the ends of which pass through two partitions B, C into chambers A<2>, A<3> which are both supplied with fuel in order to saturate both ends of the wicks, air from the inlet D passing through the wicks to the gas outlet D<2>. Fuel enters the upper chamber A<2> by a tube F under the control of a needle valve F<2> attached to a float G in a chamber G<2> communicating through a hole G<3> with the lower fuel chamber A<3>. Fuel overflows from the chamber A<2> through a pipe H to the chambers G<2>, G<3>. Beneath the lower fuel chamber A<3> is a heating- chamber J fed with exhaust gas. The wicks may be of tubular or other form.
Patent GB-1490893-A (GB)
Title: Method for hardening gelatin
IPC: G03C5/315
Filed: 1975-04-01
Abstract: 1490893 Hardening gelatin KONISHIROKU PHOTO INDUSTRY CO Ltd 1 April 1975 [1 April 1974] 13265/75 Heading C3H [Also in Division G2] A method for hardening gelatin comprises treating the gelatin with a combination of a compound having at least two mesyloxy (CH 3 SO 3 -) groups in the molecule with a compound having at least two vinylsulphonyl groups in the molecule. The gelatin can be in a layer of a photographic material, e.g. a sub layer, emulsion, interlayer, protective layer or backing layer. The hardener can also be incorporated into a processing liquid which is brought into contact with a gelatin layer of exposed silver halide photographic material.
Patent GB-133423-A (GB)
IPC: F02B25/18
Abstract: 133,423. Neighbour, A. G. L., and Neighbour, H. C. W. Oct. 7, 1918. Cylinders, construction of.-In a two-stroke-cycle engine in which air or mixture is compressed in the crank case or an auxiliary pump. the piston is provided with a conical head 3 having an internal passage 5, one end 6 of which registers with the exit from a transfer passage 8 while the other is at the apex of the cone and discharges into the enlarged head 10 of the cylinder around a central projection containing a spark plug or hot tube, or leading to a heated chamber. The cross-section of the passage 5 changes gradually from a narrow rectangle at the end 6 to a circle at the apex of the cone 3. To facilitate the cleaning of the passage 5, a removable door 26 is fitted to the side of the passage 8; to prevent deposit from falling, into the crank case during cleaning, a hinged flap 28 is seated within the door 26 and is normally held clear of the passage 8 by a removable pin engaging lateral recesses. Exhaust ports 12 are arranged annularly as shown. The fitting 18 is detachable.
Patent GB-308916-A (GB)
Title: Improvements in expanding blocks used in cardboard box making machines
IPC: B31B3/44
Filed: 1928-05-07
Abstract: 308,916. Clemson, H. A., (trading as Clemson, A.), and Perry, A. A. May 7, 1928. Apparatus for covering boxes. An expanding block for use in box banding and covering machines comprises corner or angle pieces c slidably secured to the arms of T-pieces d, the shanks or legs of which fit slidably in the sides and ends of the central block b secured to the spindle of the machine. Thumb-screws g &c. are used to clamp the parts in the adjusted position, and retaining screws &c. passing through the block b engage the shanks of the T-pieces to limit their movement in the block. Openings h are provided in the corner pieces for the ejecting rods.
Patent GB-1108164-A (GB)
Title: Plant nutrient solutions
IPC: C05D3/00
Filed: 1965-03-30
Abstract: An aqueous concentrate for the production of a hydroponic solution comprises calcium and sulphate ions and a chelating agent.  The solution may also contain cobalt and vanadium, which may be in the form of a vitamin, e.g. B12, The chelating agent may be ethylenediamine tetraacetic acid (EDTA), diethylenetriaminopentaacetic acid, 1,2-diaminocyclohexane tetraacetic acid, ethyleneglycol bis-(aminoether)-tetraacetic acid, or hydroxyethyl ethylenediamine triacetic acid, or a potassium, ammonium, or potassium/calcium salt.  A specific concentrate contains sodium, potassium, calcium, magnesium, zinc, copper, iron, cobalt, manganese, molybdenum, vanadium, nitrate, phosphate, sulphate, chloride, and borate.